WO2020045595A1 - Plate heat exchanger - Google Patents
Plate heat exchanger Download PDFInfo
- Publication number
- WO2020045595A1 WO2020045595A1 PCT/JP2019/034016 JP2019034016W WO2020045595A1 WO 2020045595 A1 WO2020045595 A1 WO 2020045595A1 JP 2019034016 W JP2019034016 W JP 2019034016W WO 2020045595 A1 WO2020045595 A1 WO 2020045595A1
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- WIPO (PCT)
- Prior art keywords
- heat transfer
- fluid
- convex
- groups
- plate
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/02—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the heat-exchange media travelling at an angle to one another
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
Definitions
- the present invention relates to a plate heat exchanger for exchanging heat between a first fluid and a second fluid.
- the plate heat exchanger is a heat transfer plate including heat transfer regions on both surfaces in the first direction, and includes a plurality of heat transfer plates in which the respective heat transfer regions are overlapped in the first direction (for example, Patent Document 1). 1).
- Each of the heat transfer regions of the plurality of heat transfer plates has a plurality of protrusions extending continuously in a direction inclined with respect to its own center line (hereinafter, referred to as a vertical center line) extending in a second direction orthogonal to the first direction. Includes ridges and valleys. In the heat transfer region, the ridges and the ridges are alternately arranged in a direction orthogonal to a direction in which the ridges extend.
- the heat transfer plate is generally manufactured by press-molding a metal plate.
- the ridges of the heat transfer region on one surface and the ridges of the heat transfer region on the other surface are in a front-to-back relationship, and the ridge of the heat transfer region on one surface and the heat transfer region on the other surface. Has a front-to-back relationship.
- the plurality of heat transfer plates are in a state in which the heat transfer regions are overlapped in the first direction, and the ridges of the adjacent heat transfer plates (heat transfer regions) are latticed. It is arranged in a shape. That is, the plurality of heat transfer plates are arranged such that the ridges of the adjacent heat transfer plates (heat transfer regions) are in a state of crossing abutment.
- the ridges and recesses in the heat transfer region of the heat transfer plate extend continuously in a direction inclined with respect to the vertical center line.
- the flow resistance of the first fluid and the second fluid and the heat exchange performance (heat transfer performance) between the first fluid and the second fluid differ depending on the direction in which the concave stripe extends (the inclination angle with respect to the vertical center line).
- each of the plurality of ridges extends in a direction in which the component of the flow direction of the fluid (first fluid, second fluid) is small (the ridges are in the flow direction of the fluid). Is arranged so that it crosses). Therefore, each of the first fluid and the second fluid tends to flow in the flow path (the first flow path or the second flow path) in the second direction while repeatedly climbing over the plurality of ridges. As a result, the respective flows of the first fluid and the second fluid are disturbed, and high heat transfer performance is obtained, but the pressure loss (flow resistance) in each of the first flow path and the second flow path is extremely large. turn into.
- each of the plurality of ridges is fluid (the first fluid, It extends in the direction in which the component of the direction of flow of the second fluid) is large (the ridges are arranged so as to follow the flow direction of the fluid). Therefore, each of the first fluid and the second fluid tries to circulate in the second direction without largely climbing over the ridge. As a result, the pressure loss (flow resistance) in each of the first flow path and the second flow path is reduced, but the flow of the first fluid and the second fluid is less likely to be disturbed, and high heat transfer performance is obtained. Can not be.
- an object of the present invention is to provide a plate heat exchanger that can achieve high heat transfer performance while suppressing an increase in fluid flow resistance.
- the plate heat exchanger is a heat transfer plate including heat transfer regions on both surfaces in the first direction, including a plurality of heat transfer plates each heat transfer region is overlapped in the first direction, A first flow path that allows the first fluid to flow in a second direction orthogonal to the first direction, and a second flow path that allows the second fluid to flow in the second direction, with each of the plurality of heat transfer plates as a boundary.
- the heat transfer region is formed alternately in the first direction, and includes a convex portion and a concave portion having a length in a direction inclined with respect to its own center line extending in the second direction, and the convex portion and the concave portion are in the inclined direction.
- a plurality of concavo-convex groups alternately arranged along a virtual line extending in the direction in which the plurality of concavo-convex groups are arranged in a direction orthogonal to the direction of inclination. It is arranged side by side with the concave part of the concavo-convex group adjacent in the direction orthogonal to The concave portions of the plurality of concave / convex groups are arranged side by side with the convex portions of the concave / convex groups adjacent in the direction orthogonal to the inclined direction, and the heat transfer plates adjacent to each other with the heat transfer regions facing each other. Is characterized in that the protruding portions of the concavo-convex groups are cross-imputed with each other.
- each of the protrusions and recesses of the plurality of unevenness groups on the heat transfer plate is arranged in a staggered manner. That is, the plurality of convex portions are arranged in a staggered manner in the heat transfer region, and the plurality of concave portions are arranged in a staggered manner avoiding the plurality of convex portions in the heat transfer region.
- the first fluid when flowing the first fluid in the second direction in the first flow path, the first fluid flows along the concave portion in the heat transfer plate (heat transfer region) that defines the first flow path, and is adjacent on the downstream side of the concave portion. It collides with a convex part (a convex part of a common unevenness group). Then, the flow of the first fluid changes, and the first fluid transfers to the peripheral concave portions (for example, concave portions of the concave and convex groups on both sides, concave portions of the concave and convex groups of the counterpart heat transfer plate, and the like) and flows along the concave portions. As described above, the first fluid flows downstream while repeating the flow along the concave portion and the collision with the convex portion.
- the peripheral concave portions for example, concave portions of the concave and convex groups on both sides, concave portions of the concave and convex groups of the counterpart heat transfer plate, and the like
- the second fluid flows in the second direction in the second flow path
- the second fluid flows along a concave portion in the heat transfer plate (heat transfer region) defining the second flow path, and is adjacent to the downstream side of the concave portion. It collides with a matching convex part (a convex part of a common unevenness group). Then, the flow of the second fluid changes, and the second fluid transfers to the peripheral concave portions (for example, concave portions of the concave and convex groups on both sides, concave portions of the concave and convex groups of the counterpart heat transfer plate) and flows along the concave portions. As described above, the second fluid flows downstream while repeating the flow along the concave portion and the collision with the convex portion.
- the plate heat exchanger having the above configuration is used.
- an increase in distribution resistance can be suppressed.
- the plate heat exchanger having the above configuration since each of the first fluid and the second fluid collides with the convex portion of the concave / convex group including the concave portion, in the plate heat exchanger having the above configuration, the respective flows of the first fluid and the second fluid are disturbed. This results in high heat transfer performance.
- each of the protrusions of the plurality of unevenness groups in the heat transfer area of the heat transfer plate is one of the plurality of unevenness groups in the heat transfer area of the partner heat transfer plate adjacent in the first direction. May be cross-impacted with the projections of at least two uneven groups.
- the first fluid that collides with the convex portion is guided to the concave portions of the concave / convex group on both sides of the concave / convex group including the convex portion, and the second fluid that collides with the convex portion includes the concave / convex group including the convex portion.
- the concave portions of the concave and convex groups are guided to the concave portions of the concave and convex groups on both sides of the concave portion.
- the protrusions of the different uneven groups are different. Are arranged at different positions in a direction orthogonal to the direction in which the unevenness group extends (the direction inclined with respect to the center line). That is, the protrusions of the different concavo-convex groups are arranged at intervals in a direction orthogonal to the direction of inclination (the direction in which the imaginary line extends).
- the projections of the mating heat transfer plate cross-impact with each end of or near the projections of the projections and depressions of the plurality of projections and depressions in the heat transfer region of the heat transfer plate.
- the first fluid is blocked by the convex portion of the counterpart heat transfer plate. Is guided (branched) to the concaves of the concavo-convex group located in, and flows along the concaves. Then, the first fluid flowing along the concave portion collides with a convex portion adjacent to the concave portion.
- the first fluid also tends to flow to the heat transfer plate side of the counterpart, but is blocked by the protrusions of the counterpart heat transfer plate, and consequently the first fluid is on both sides of the group of protrusions and protrusions including the hitting protrusions. It is guided (branched) to the concave portions of the concave / convex group. That is, it is guided (merged) to the concave portions included in the original concave-convex group. As a result, the first fluid repeats branching and merging by collision with the convex portion, and flows to the downstream side. This flow (the flow in which branching and merging are repeated by collision with the convex portion) is the same for the second fluid.
- the first fluid has an opportunity to flow through the concave portion in the first flow channel
- the second fluid has an opportunity to flow through the concave portion in the second flow channel, so that the flow resistance in each flow channel is suppressed from increasing.
- the first fluid repeats branching and merging in the first flow path
- the second fluid repeats branching and merging in the second flow path, whereby turbulence occurs in the respective flows of the first fluid and the second fluid.
- the heat exchange performance heat transfer performance
- each of the protrusions of the plurality of unevenness groups in the heat transfer area of the heat transfer plate is one of the plurality of unevenness groups in the heat transfer area of the partner heat transfer plate adjacent in the first direction. May be cross-impacted with one convex part of one concave-convex group.
- the first fluid that collides with the convex portion is guided to the concave portion of the concave / convex group of the other heat transfer plate with respect to the heat transfer plate having the concave / convex group including the convex portion, and collides with the convex portion.
- the two fluids are guided to the concave portion of the concavity and convexity group of the other heat transfer plate with respect to the heat transfer plate having the concavo-convex group including the convex portion.
- the plurality of uneven groups in the common heat transfer region are arranged in a direction orthogonal to the direction inclined with respect to the center line (the direction in which the virtual line extends).
- the projections are arranged at different positions in a direction orthogonal to the direction in which the group of irregularities extend (the direction in which the imaginary line extends). That is, the protrusions of the different concavo-convex groups are arranged at intervals in a direction orthogonal to the direction in which the virtual line extends. Accordingly, each of the protrusions included in the concavo-convex group intersects with one of the concavo-convex groups of a different heat transfer plate of the partner. Accordingly, the convex portions of the adjacent heat transfer plates cross each other, and the concave portions of the adjacent heat transfer plates cross each other at an interval.
- the concave portion of the counterpart heat transfer plate (the concave portion intersecting with the concave portion arranged side by side with the convex portion against which the first fluid collides). ) And flows along the concave portion of the other heat transfer plate. Then, when the first fluid flowing along the concave portion of the counterpart heat transfer plate attempts to change the flow by colliding with the convex portion of the counterpart heat transfer plate, the concave portion of the original heat transfer plate (the first fluid collides). (A concave portion intersecting with a concave portion that is arranged side by side with the convex portion), and flows along the concave portion of the original heat transfer plate. In this way, the first fluid flows downstream while sequentially moving over the concave portions of the adjacent heat transfer plates.
- the concavo-convex group (the convex portion and the concave portion) is along a virtual line that is inclined with respect to a center line extending in the second direction (extending in the flow direction of the first fluid).
- the first fluid flows downstream while sequentially passing through the recesses of the adjacent heat transfer plates, so that the flow of the first fluid becomes a spiral flow. Become. This flow (spiral flow) is the same for the second fluid.
- the first fluid has an opportunity to flow through the concave portion in the first flow channel
- the second fluid has an opportunity to flow through the concave portion in the second flow channel, so that the flow resistance in each flow channel is suppressed from increasing.
- the first fluid creates a helical flow in the first flow path
- the second fluid creates a helical flow in the second flow path, resulting in further turbulence in the respective flows of the first fluid and the second fluid.
- the heat exchange performance (heat transfer performance) between the first fluid and the second fluid via the heat transfer plate (heat transfer region) is improved.
- the imaginary line serving as a reference for the arrangement of the unevenness group is inclined at an angle of less than 45 ° with respect to the center line extending in the second direction.
- the components in the direction extending in the longitudinal direction of the concave portion included in the concave and convex group include more components in the flow direction than components perpendicular to the flow direction of the first fluid and the second fluid.
- the plate heat exchanger of the present invention an excellent effect that high heat transfer performance can be obtained while suppressing an increase in fluid flow resistance can be achieved.
- FIG. 1 is an overall perspective view of the plate heat exchanger according to the first embodiment of the present invention.
- FIG. 2 is a schematic exploded perspective view of the plate heat exchanger according to the first embodiment.
- FIG. 3 is a front view of the first heat transfer plate in the plate heat exchanger according to the first embodiment.
- FIG. 4 is a rear view of the first heat transfer plate in the plate heat exchanger according to the first embodiment.
- FIG. 5 is a front view of a second heat transfer plate in the plate heat exchanger according to the first embodiment.
- FIG. 6 is a rear view of the second heat transfer plate in the plate heat exchanger according to the first embodiment.
- FIG. 7 is a diagram for explaining the flow of the first fluid in the first flow path in the plate heat exchanger according to the first embodiment.
- FIG. 8 is a diagram for explaining the flow of the second fluid in the second flow path in the plate heat exchanger according to the first embodiment.
- FIG. 9 is a diagram for explaining the flow of the first fluid in a partial region of the first flow path in the plate heat exchanger according to the first embodiment.
- FIG. 10 is a diagram for explaining the flow of the second fluid in a partial region of the second flow path in the plate heat exchanger according to the first embodiment.
- FIG. 11 is an overall perspective view of the plate heat exchanger according to the second embodiment of the present invention.
- FIG. 12 is a schematic exploded perspective view of the plate heat exchanger according to the second embodiment.
- FIG. 13 is a front view of the first heat transfer plate in the plate heat exchanger according to the second embodiment.
- FIG. 14 is a rear view of the first heat transfer plate in the plate heat exchanger according to the second embodiment.
- FIG. 15 is a front view of a second heat transfer plate in the plate heat exchanger according to the second embodiment.
- FIG. 16 is a rear view of the second heat transfer plate in the plate heat exchanger according to the second embodiment.
- Drawing 17 is a figure for explaining the flow of the 1st fluid in the 1st channel in the plate type heat exchanger concerning a second embodiment.
- FIG. 18 is a diagram for explaining the flow of the second fluid in the second flow path in the plate heat exchanger according to the second embodiment.
- FIG. 19 is a diagram for explaining the flow of the first fluid in a partial region of the first flow path in the plate heat exchanger according to the second embodiment.
- FIG. 20 is a diagram for explaining the flow of the second fluid in a partial region of the second flow path in the plate heat exchanger according to the second embodiment.
- FIG. 21 is a diagram for explaining the flow of the first fluid in a partial region of the first flow path in the plate heat exchanger according to another embodiment of the present invention.
- FIG. 22 is a diagram for explaining the flow of the second fluid in a partial region of the second flow path in the plate heat exchanger according to the embodiment.
- the plate-type heat exchanger exchanges heat between the first fluid A and the second fluid B, and includes a plurality of heat transfer plates 2 and 3 stacked in the first direction.
- a first direction is defined as an X-axis direction
- a second direction orthogonal to the first direction is defined as a Z-axis direction
- a third direction orthogonal to each of the first direction and the second direction is defined as a Y-axis direction.
- a first flow path Ra that allows the first fluid A to flow in the Z-axis direction with each of the plurality of heat transfer plates 2 and 3 as a boundary.
- a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction.
- each of the plurality of heat transfer plates 2 and 3 includes heat transfer regions 200a, 200b, 300a and 300b on both surfaces S1 and S2 in the X-axis direction. More specifically, each of the plurality of heat transfer plates 2 and 3 includes a heat transfer unit 20 or 30 having a first surface S1 and a second surface S2 opposite to the first surface S1 in the X-axis direction. , And annular portions 21 and 31 extending from the entire outer periphery of the heat transfer units 20 and 30.
- the first surface S1 and the second surface S2 of the heat transfer units 20, 30 include heat transfer regions 200a, 200b, 300a, 300b that contribute to heat exchange between the first fluid A and the second fluid B. More specifically, the heat transfer units 20 and 30 are formed in a square shape when viewed from the X-axis direction. In the present embodiment, the heat transfer units 20 and 30 are formed in a rectangular shape that is elongated in the Z-axis direction when viewed from the X-axis direction.
- the heat transfer units 20 and 30 mainly include an intersection of a center line (hereinafter, referred to as a vertical center line) CL1 extending in the Z-axis direction and a center line (hereinafter, referred to as horizontal center line) CL2 extending in the Y-axis direction.
- a center line hereinafter, referred to as a vertical center line
- CL2 center line
- Heat transfer portions 20a, 30a and a pair of ends 20b, 30b on both sides of the main heat transfer portions 20a, 30a in the Z-axis direction are included.
- the main heat transfer sections 20a and 30a are formed in a square shape when viewed from the X-axis direction.
- the main heat transfer sections 20a and 30a are formed in a rectangular shape having a length in the Z-axis direction.
- the pair of ends 20b and 30b are continuous with the main heat transfer sections 20a and 30a, and form the entire heat transfer sections 20 and 30 in a square shape (rectangular shape) when viewed from the X-axis direction.
- the first surface S1 and the second surface S2 of the main heat transfer portions 20a, 30a of the heat transfer portions 20, 30 are heat transfer regions 200a, 200b, 300a, 300b.
- Each of the heat transfer regions 200a, 200b, 300a, 300b of the first surface S1 and the second surface S2 has a convex portion 201a, 202a having a length in a direction inclined with respect to the vertical center line CL1 (hereinafter referred to as an inclined direction).
- Groups 201, 202, 301, and 302 include a plurality of uneven groups 201, 202, 301, and 302 arranged in a direction orthogonal to the tilt direction.
- Each of the convex portions 201a, 202a, 301a, 302a of the plurality of concave / convex groups 201, 202, 301, 302 is formed with concave portions 201b, 202b, 301b of the concave / convex groups 201, 202, 301, 302 adjacent in the direction orthogonal to the inclination direction. , 302b.
- each of the concave portions 201b, 202b, 301b, and 302b of the plurality of concave / convex groups 201, 202, 301, and 302 has a convex portion 201a of the concave / convex groups 201, 202, 301, and 302 that are adjacent to each other in a direction orthogonal to the inclination direction. , 202a, 301a, and 302a.
- the convex portions 201a, 202a, 301a, and 302a of the plurality of rows of unevenness groups 201, 202, 301, and 302 are arranged in a staggered manner within the heat transfer regions 200a, 200b, 300a, and 300b.
- the concave portions 201b, 202b, 301b, and 302b of 201, 202, 301, and 302 are arranged between the convex portions 201a, 202a, 301a, and 302a in the heat transfer regions 200a, 200b, 300a, and 300b. , 200b, 300a, and 300b in a zigzag pattern.
- each of the convex portions 201a, 202a, 301a, and 302a of the plurality of concave and convex groups 201, 202, 301, and 302 is formed with the concave portion 201b of the adjacent concave and convex groups 201, 202, 301, and 302. , 202b, 301b, 302b in the Y-axis direction.
- each of the concave portions 201b, 202b, 301b, and 302b of the plurality of concave / convex groups 201, 202, 301, and 302 is different from the convex portions 201a, 202a, 301a, and 302a of the adjacent concave / convex groups 201, 202, 301, and 302. They are arranged side by side in the Y-axis direction.
- the inclination direction is set to a direction inclined at an angle of less than 45 ° with respect to the vertical center line CL1. Accordingly, the inclination angle ⁇ 1 of the virtual line VL with respect to the vertical center line CL1 is set to less than 45 °. That is, the inclination angle ⁇ 2 of the virtual line VL with respect to the horizontal center line CL2 is set to be larger than 45 °. In the present embodiment, the inclination angle ⁇ 1 of the virtual line VL with respect to the vertical center line CL1 is set to 30 ° to 40 °. In the present embodiment, the inclination angle ⁇ 2 of the virtual line VL with respect to the horizontal center line CL2 is set to 60 ° to 70 °.
- the plurality of heat transfer plates 2 and 3 are stacked with the heat transfer portions 20 and 30 (heat transfer regions 200a, 200b, 300a and 300b) facing each other, so that the adjacent heat transfer plates 2 and 3 are stacked.
- the projections 201a, 202a, 301a, and 302a of the three concavo-convex groups 201, 202, 301, and 302 cross each other.
- the longitudinal lengths of the convex portions 201a, 202a, 301a, 302a and the longitudinal lengths of the concave portions 201b, 202b, 301b, 302b included in each of the concavo-convex groups 201, 202, 301, 302 (virtual line VL (The intervals between the convex portions 201a, 202a, 301a, and 302a) arranged in the extending direction of the heat transfer plates 200, 300a, 202a, 301a, and 302a.
- the projections 201a, 202a, 301a, and 200b of the two or more concavo-convex groups 201, 202, 301, and 302 include two (two rows) or more concavities and convexities 201, 202, 301, and 302 included in 200b, 300a, and 300b. 302a).
- the projections 201a, 202a, 301a, 302a tops of the projections 201a, 202a, 301a, 302a
- the recesses 201b, 202b, 301b, 302b bottoms of the recesses 201b, 202b, 301b, 302b
- the bottoms of the concave portions 201b, 202b, 301b, 302b from the top of the convex portions 201a, 202a, 301a, 302a).
- An intermediate region (not numbered) is formed from the bottom of the recesses 201b, 202b, 301b, 302b to the top of the protrusions 201a, 202a, 301a, 302a).
- This intermediate region is located between the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b in the concave / convex groups 201, 202, 301, 302, and the adjacent concave / convex groups 201, 202, 301, 302.
- the intermediate region may include a middle portion that extends in the Z-axis direction and the Y-axis direction at an intermediate position between the tops of the protrusions 201a, 202a, 301a, and 302a and the bottoms of the recesses 201b, 202b, 301b, and 302b.
- the projections 201a, 202a, 301a, 302a from the top of the projections 201a, 202a, 301a, 302a to the bottom of the depressions 201b, 202b, 301b, 302b (or from the bottom of the depressions 201b, 202b, 301b, 302b, the projections 201a, 202a). , 301a, 302a).
- a pair of through holes 203, 204, 303, 304 penetrating in the X-axis direction are provided in each of the pair of ends 20b, 30b.
- the pair of through holes 203, 204, 303 and 304 are arranged at intervals in the Y-axis direction.
- the pair of through holes 203, 204, 303, 304 are arranged with the vertical center line CL1 interposed therebetween.
- each of the plurality of heat transfer plates 2 and 3 is formed by press-molding a metal plate. Accordingly, in each of the heat transfer plates 2 and 3, the convex portions 201a and 301a of the heat transfer regions 200a and 300a on the first surface S1 and the concave portions 202b and 302b of the heat transfer regions 200b and 300b on the second surface S2 are front and back.
- the concave portions 201b and 301b of the heat transfer regions 200a and 300a on the first surface S1 and the convex portions 202a and 302a of the heat transfer regions 200b and 300b on the second surface S2 have a front and back relationship.
- the groups 202 and 302 are formed in opposite positions at the corresponding positions.
- the plate heat exchanger 1 includes two types of heat transfer plates 2 and 3.
- the two types of heat transfer plates 2 and 3 are different from each other in that the directions in which the annular portions 21 and 31 extend from the heat transfer portions 20 and 30 and the positions of the unevenness of the unevenness groups 201, 202, 301, and 302 are different. They have the same configuration.
- the two types of heat transfer plates 2 and 3 include heat transfer portions 20 and 30 including main heat transfer portions 20a and 30a and a pair of ends 20b and 30b, and annular portions 21 and 31.
- the heat transfer regions 200a, 200b, 300a, 300b of the first surface S1 and the second surface S2 of the main heat transfer portions 20a, 30a are common in having a plurality of uneven groups 201, 202, 301, 302.
- the annular portion 21 extends to the second surface S ⁇ b> 2 side of the heat transfer portion 20
- the annular portion 31 extends to the first surface S1 side of the heat transfer portion 30.
- the plurality of uneven groups 201 and 202 are formed along the X-axis. As seen from the direction, the heat transfer portion 20 is inclined downward from one end to the other end in the Y-axis direction.
- a plurality of unevenness groups 301 and 302 are provided in the heat transfer regions 300a and 300b of the first surface S1 and the second surface S2 of the heat transfer portion 30 (main heat transfer portion 30a) of the second heat transfer plate 3. Is inclined downward from the other end to the one end of the heat transfer section 30 in the Y-axis direction when viewed from the X-axis direction.
- the plurality of uneven groups 301 and 302 of the second heat transfer plate 3 are arranged such that the plurality of uneven groups 201 and 202 of the first heat transfer plate 2 are aligned with the vertical center line CL1 when viewed from the same side in the X-axis direction. And is shifted by a predetermined pitch (one pitch in this embodiment) in the Y-axis direction.
- the first heat transfer plate 2 and the second heat transfer plate 3 are arranged alternately in the X-axis direction, and the annular portions of the adjacent first heat transfer plate 2 and second heat transfer plate 3 are arranged. 21 and 31 are fitted together (see FIG. 1).
- the first surface S1 of the heat transfer portion 20 of the first heat transfer plate 2 faces the first surface S1 of the heat transfer portion 30 of the second heat transfer plate 3
- the second surface S2 of the heat section 20 faces the second surface S2 of the heat transfer section 30 of the second heat transfer plate 3.
- the transfer of the second heat transfer plate 3 to the respective protrusions 201a of the plurality of uneven groups 201 on the first surface S1 (heat transfer region 200a) of the heat transfer portion 20 of the first heat transfer plate 2 is performed.
- Two (two rows) of uneven groups 301 included in the first surface S1 (heat transfer region 300a) of the heat unit 30 intersect, and the convex portions 301a of the uneven group 301 intersect. That is, the heat transfer portion of the second heat transfer plate 3 is provided for each of the protrusions 201a of the plurality of uneven groups 201 on the first surface S1 (heat transfer region 200a) of the heat transfer portion 20 of the first heat transfer plate 2.
- the two protrusions 301a on the first surface S1 (the heat transfer region 300a) of the cross 30 abut (see FIG. 7).
- the heat transfer portion of the second heat transfer plate 3 is provided to each of the protrusions 202a of the plurality of uneven groups 202 on the second surface S2 (heat transfer region 200b) of the heat transfer portion 20 of the first heat transfer plate 2.
- the two (two rows) irregular groups 302 included in the second surface S2 (the heat transfer region 300b) of the 30 intersect, and the convex portions 302a of the irregular group 302 intersect. That is, the heat transfer portion of the second heat transfer plate 3 is moved to the respective protrusions 202a of the plurality of irregularities 202 on the second surface S2 (heat transfer region 200b) of the heat transfer portion 20 of the first heat transfer plate 2.
- the two convex portions 302a on the second surface S2 (the heat transfer region 300b) of 30 cross-impact.
- the annular portions 21 and 31 of the plurality of heat transfer plates 2 and 3 (first heat transfer plate 2 and second heat transfer plate 3) superimposed in the X-axis direction, and through holes 203, 204, 303 and 304. Is sealed in a liquid-tight manner as appropriate.
- the plurality of heat transfer plates 2 and 3 superimposed in the X-axis direction are integrated by brazing, and the brazing is performed between the annular portions 21 and 31 and the through holes 203, 204, 303, and 304. The surroundings are sealed.
- first and second heat transfer plates 2, 3 (the heat transfer unit 20 of the first heat transfer plate 2 and the heat transfer unit 30 of the second heat transfer plate 3) are bordered by the first heat transfer unit 20.
- a first flow path Ra for flowing the fluid A in the Z-axis direction and a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction.
- the heat transfer included in the concave portion 201b of the heat transfer area 200a included in the first surface S1 of the heat transfer portion 20 of the first heat transfer plate 2 and the first surface S1 of the heat transfer portion 30 of the second heat transfer plate 3 The space formed by the concave portion 301b of the region 300a constitutes the first flow path Ra, and the concave portion 202b of the heat transfer region 200b and the second portion Sb included in the second surface S2 of the heat transfer portion 20 of the first heat transfer plate 2.
- the space formed by the concave portion 302b of the heat transfer region 300b included in the second surface S2 of the heat transfer portion 30 of the heat transfer plate 3 forms a second flow path Rb.
- first heat transfer plate 2, second heat transfer plate 3 the corresponding through holes 203, 204, 303, 304 of the plurality of heat transfer plates 2, 3 (first heat transfer plate 2, second heat transfer plate 3) are connected in the X-axis direction, and only the first flow path Ra is provided.
- a pair of first series passages Ra1 and Ra2 that allow the first fluid A to flow into and out of the first flow passage Ra.
- the plate heat exchanger 1 according to the present embodiment is as described above, supplies the first fluid A to one of the first series passages Ra1, and supplies the second fluid B to one of the second communication passages Rb2. Then, the first fluid A flows into each of the plurality of first flow paths Ra from one of the first series passages Ra1, and the second fluid B flows from the one of the second communication paths Rb1 to the plurality of second flow paths Rb. Flow into each.
- the first fluid A flows in the Z-axis direction in the first flow path Ra
- the second fluid B flows in the Z-axis direction in the second flow path Rb. That is, the first fluid A flows from one end of the heat transfer regions 200a, 300a in the Z-axis direction to the other end in the first flow channel Ra, and the second fluid B flows in the second flow channel Rb.
- the heat flows from the other ends of the heat transfer regions 200b and 300b in the Z-axis direction toward one end.
- the first fluid A flowing in the first flow path Ra flows along the concave portions 201b and 301b in the heat transfer regions 200a and 300a, and the first fluid A in the concave portions 201b and 301b It collides with the convex portions 201a and 301a (the convex portions 201a and 301a adjacent to the concave portions 201b and 301b) of the included concave and convex groups 201 and 301.
- the first fluid A branches to both sides of the colliding convex portions 201a, 202a, 301a, and 302a.
- the branched first fluid A flows downstream along the concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides of the concave and convex groups 201 and 301 including the colliding convex portions 201a and 301a.
- the first fluid A flowing along the concave portions 201b, 301b is applied to the convex portions 201a, 301a of the concave / convex groups 201, 301 (the convex portions 201a, 301a adjacent to the concave portions 201b, 301b) included in the concave portions 201b, 301b. collide.
- the first fluid A colliding with the convex portions 201a, 301a is branched to both sides of the convex portions 201a, 301a.
- the first fluid A flows along the concave portions 201b and 301b included in the original unevenness groups 201 and 301. That is, the first fluid A branched by the upstream-side convex portions 201a and 301a merges with the original line (the unevenness groups 201 and 301) by collision with the convex portions 201a and 301a in different rows (adjacent rows). Thus, the first fluid A flows downstream while repeating branching and merging. Thereby, the flow of the first fluid A is disturbed in the first flow path Ra.
- the unevenness groups 201 and 301 are inclined at less than 45 ° with respect to the vertical center line CL1, the flow direction of the first fluid A flows. Are arranged at an angle that includes a lot of components. Accordingly, when the first fluid A flows downstream, the first fluid A easily flows along the concave portions 201b and 301b, so that an increase in the flow resistance is suppressed.
- the plurality of uneven groups 202 and 302 of the main heat transfer portions 20a and 30a (the heat transfer areas 200b and 300b on the second surface S2) that define the second flow path Rb define the first flow path Ra.
- This is a mode in which the unevenness relationship is reversed with respect to the plurality of unevenness groups 201 and 301 of the main heat transfer portions 20a and 30a (the heat transfer regions 200a and 300a on the first surface S1). Since the two convex portions 202a and 302a are in cross-contact with the 302a, the second fluid B flowing in the second flow path Rb also flows in the first flow path Ra as shown in FIG. Like the first fluid A, the fluid flows downstream while repeating branching and merging.
- the first fluid A flows through the first flow channel Ra
- the second fluid B flows through the second flow channel Rb.
- Heat is exchanged via main heat transfer sections 20a, 30a (heat transfer areas 200a, 200b, 300a, 300b) that partition Ra and second flow path Rb.
- the first fluid A that has completed the heat exchange is discharged from the first flow path Ra to the outside through the other first series passage Ra2
- the second fluid B that has completed the heat exchange is the second fluid B. It is discharged from the two flow paths Rb to the outside via the other second communication path Rb2.
- the plate heat exchanger 1 includes the heat transfer plates 2 and 3 including the heat transfer regions 200a, 200b, 300a, and 300b on both surfaces in the X-axis direction. Regions 200a, 200b, 300a, and 300b are provided with a plurality of heat transfer plates 2 and 3 superposed in the X-axis direction.
- a first flow path Ra for flowing in the Z-axis direction orthogonal to the direction and a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction, and the heat transfer regions 200a, 200b, 300a and 300b include convex portions 201a, 202a, 301a and 302a and concave portions 201b, 202b, 301b and 302b having a length in a direction inclined with respect to the longitudinal center line CL1 extending in the Z-axis direction.
- the projections 201a, 202a, 301a, 302a and the depressions 201b, 202b, 301b, 302b are irregular groups 201, 202, 301, 302 alternately arranged along a virtual line VL extending in the inclined direction.
- It has a plurality of concavo-convex groups 201, 202, 301, 302 arranged in a direction orthogonal to the direction of inclination, and each of the convex portions 201a, 202a, 301a, 302a of the plurality of concavo-convex groups 201, 202, 301, 302
- the recesses 201b, 202b, 301b, 302b of the concavo-convex groups 201, 202, 301, 302 adjacent in the direction perpendicular to the tilting direction are arranged side by side, and the plurality of concavo-convex groups 201, 202, 301, Each of the recesses 201b, 202b, 301b, 302b of the 302 is orthogonal to the tilting direction.
- the heat transfer regions 200a, 200b, 300a, 300b are arranged side by side with the protrusions 201a, 202a, 301a, 302a of the concavo-convex groups 201, 202, 301, 302 which are adjacent to each other in the direction in which the heat transfer regions 200a, 200b, 300a, 300b face each other.
- the plates 2 and 3 make the projections 201a, 202a, 301a and 302a of the concavo-convex groups 201, 202, 301 and 302 cross each other.
- the protrusions 201a, 202a, 301a, 302a and the recesses 201b of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer plates 2, 3 heat transfer regions 200a, 200b, 300a, 300b).
- 202b, 301b, 302b are arranged in a staggered manner.
- the plurality of convex portions 201a, 202a, 301a, 302a are arranged in a staggered manner in the heat transfer regions 200a, 200b, 300a, 300b, and the plurality of concave portions 201b, 202b, 301b, 302b are formed in the heat transfer regions 200a, 200b,
- the plurality of protrusions 201a, 202a, 301a, and 302a are arranged in a staggered manner in 300a and 300b.
- the first fluid A flows in the Z-axis direction in the first flow path Ra
- the first fluid A is transferred to the concave portions 201b and 301b in the heat transfer plates 2 and 3 (heat transfer areas 200a and 300a) that define the first flow path Ra. It flows along and collides with the convex portions 201a, 301a adjacent on the downstream side of the concave portions 201b, 301b (the convex portions 201a, 301a of the common concave / convex groups 201, 301).
- the flow of the first fluid A changes, and the first fluid A is filled with the peripheral concave portions 201b and 301b (for example, concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides, and concave and convex groups of the heat transfer plates 2 and 3 on the other side).
- 201, 301 and flows along the concave portions 201b, 301b.
- the first fluid A flows downstream while repeating the flow along the concave portions 201b and 301b and the collision with the convex portions 201a and 301a.
- the concave portions 202b and 302b in the heat transfer plates 2 and 3 heat transfer areas 200b and 300b that define the second flow path Rb. And collides with the adjacent convex portions 202a, 302a on the downstream side of the concave portions 202b, 302b (the convex portions 202a, 302a of the common concave / convex groups 202, 302).
- the flow of the second fluid B is changed, and the second fluid B is filled with the peripheral concave portions 202b and 302b (for example, the concave portions 202b and 302b of the concave and convex groups 202 and 302 on both sides, and the concave and convex groups of the heat transfer plates 2 and 3 on the other side).
- 202, 302b the concave portions 202b and 302b of the concave and convex groups 202 and 302 on both sides, and the concave and convex groups of the heat transfer plates 2 and 3 on the other side.
- 202, 302b the second fluid B flows downstream while repeating the flow along the concave portions 202b and 302b and the collision with the convex portions 202a and 302a.
- each of the first fluid A and the second fluid B collides with the convex portions 201a, 202a, 301a, 302a of the concave and convex groups 201, 202, 301, 302 including the concave portions 201b, 202b, 301b, 302b,
- the flows of the first fluid A and the second fluid B are disturbed, and high heat transfer performance is obtained.
- each of the protrusions 201a, 202a, 301a, 302a of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the heat transfer plates 2, 3 At least two of the plurality of concavo-convex groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the opposing heat transfer plates 2, 3 adjacent in the X-axis direction.
- 301, 302 cross-impact with the projections 201a, 202a, 301a, 302a.
- the first fluid A that has collided with the convex portions 201a and 301a is guided to the concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides of the concave and convex groups 201 and 301 including the convex portions 201a and 301a.
- the second fluid B colliding with the convex portions 202a and 302a is guided to the concave portions 202b and 302b of the concave and convex groups 202 and 302 on both sides of the concave and convex groups 202 and 302 including the convex portions 202a and 302a.
- the plurality of uneven groups 201, 202, 301, and 302 in the common heat transfer regions 200a, 200b, 300a, and 300b are inclined in the direction of inclination with respect to the vertical center line CL1 (the direction in which the virtual line VL extends).
- the projections 201 a, 202 a, 301 a, 302 a of the different concavo-convex groups 201, 202, 301, 302 are arranged in the orthogonal direction, and therefore, the extending direction of the concavo-convex groups 201, 202, 301, 302 (the direction in which the virtual line VL extends).
- the convex portions 201a, 202a, 301a, 302a of the different concavo-convex groups 201, 202, 301, 302 are arranged at intervals in a direction orthogonal to the inclination direction (the direction in which the virtual line VL extends) with respect to the vertical center line CL1.
- the heat transfer plates of the mating members 201, 202a, 301a, and 302a in the heat transfer regions of the heat transfer plates 2 and 3 are provided at the ends of the protrusions 201a, 202a, 301a, and 302a or in the vicinity thereof.
- the protruding portions 201a, 202a, 301a, and 302a of the plates 2 and 3 intersect.
- the first fluid A colliding with the convex portions 201a and 301a attempts to flow toward the heat transfer plates 2 and 3 of the other party, the first fluid A is blocked by the convex portions 201a and 301a of the heat transfer plates 2 and 3 of the other party.
- it is guided (branched) to the concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides of the concave and convex groups 201 and 301 including the colliding convex portions 201a and 301a, and flows along the concave portions 201b and 301b.
- the first fluid A flowing along the concave portions 201b, 301b collides with the convex portions 201a, 301a adjacent to the concave portions 201b, 301b.
- the first fluid A also attempts to flow toward the heat transfer plates 2 and 3 of the other party, but is blocked by the convex portions 201a and 301a of the heat transfer plates 2 and 3 of the other party, and as a result, collides. It is guided (branched) to the concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides of the concave and convex groups 201 and 301 including the convex portions 201a and 301a. That is, it is guided (merged) to the concave portions 201b and 301b included in the original concave and convex groups 201 and 301.
- the first fluid A repeatedly branches and joins upon collision with the convex portions 201a and 301a, and flows to the downstream side.
- This flow (a flow in which branching and merging are repeated by collision with the convex portions 201a and 301a) is the same for the second fluid B.
- first fluid A there is an opportunity for the first fluid A to flow through the recesses 201b and 301b in the first channel Ra, and there is an opportunity for the second fluid B to flow in the recesses 202b and 302b in the second channel Rb.
- first fluid A repeats branching and joining in the first flow path Ra
- second fluid B repeats branching and joining in the second flow path Rb.
- heat exchange performance heat transfer performance
- the first fluid A repeats branching and joining in the first channel Ra
- the second fluid B repeats branching and joining in the second channel Rb. Then, since the respective flows of the first fluid A and the second fluid B are disturbed, the disturbed flows exert a mixing function.
- the plate heat exchanger 1 can prevent components contained in at least one of the first fluid A and the second fluid B from being separated in the flow process.
- the plate heat exchanger 1 is configured such that a fluid in which two or more types of liquids are combined or one or more types of liquids and powders are supplied to one of the first channel Ra and the second channel Rb.
- a fluid in which two or more types of liquids are combined or one or more types of liquids and powders are supplied to one of the first channel Ra and the second channel Rb.
- the plate heat exchanger 1 according to the present embodiment can also function as a mixer that mixes a plurality of components contained in either the first fluid A or the second fluid B. That is, the plate heat exchanger 1 according to the present embodiment mixes the first fluid A and the second fluid B while mixing a plurality of components contained in either the first fluid A or the second fluid B.
- the reactor contained in the first fluid A or the second fluid B reacts with each other. Function.
- the virtual line VL which is a reference for the arrangement of the concavo-convex groups 201, 202, 301, and 302, is inclined at an angle of less than 45 ° with respect to the vertical center line CL1 extending in the Z-axis direction.
- the components in the direction extending in the longitudinal direction of the concave portions 201b, 202b, 301b, and 302b included in the concave and convex groups 201, 202, 301, and 302 are the component of the flow direction of the first fluid A and the second fluid B in the flow direction. Is included more than the component in the direction orthogonal to.
- the plate heat exchanger 1 according to the present embodiment an excellent effect that high heat transfer performance can be obtained while suppressing an increase in fluid flow resistance can be achieved.
- the plate heat exchanger according to the present embodiment has the same configuration as the first embodiment or a configuration corresponding thereto. Accordingly, in the description of the plate heat exchanger according to the present embodiment, the same configurations or corresponding configurations as in the first embodiment will be denoted by the same names and the same reference numerals.
- the plate-type heat exchanger exchanges heat between the first fluid A and the second fluid B, and includes a plurality of heat transfer plates 2 and 3 stacked in the first direction.
- a first direction is defined as an X-axis direction
- a second direction orthogonal to the first direction is defined as a Z-axis direction
- a third direction orthogonal to each of the first direction and the second direction is defined as a Y-axis direction.
- X-axis corresponding to the X-axis direction, Y-axis corresponding to the Y-axis direction, and Z-axis corresponding to the Z-axis direction are supplementarily illustrated in each drawing. It is illustrated.
- a first flow path Ra that allows the first fluid A to flow in the Z-axis direction with each of the plurality of heat transfer plates 2 and 3 as a boundary.
- a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction.
- each of the plurality of heat transfer plates 2 and 3 includes heat transfer regions 200a, 200b, 300a and 300b on both surfaces S1 and S2 in the X-axis direction. More specifically, each of the plurality of heat transfer plates 2 and 3 includes a heat transfer unit 20 or 30 having a first surface S1 and a second surface S2 opposite to the first surface S1 in the X-axis direction. , And annular portions 21 and 31 extending from the entire outer periphery of the heat transfer units 20 and 30.
- the first surface S1 and the second surface S2 of the heat transfer units 20, 30 include heat transfer regions 200a, 200b, 300a, 300b that contribute to heat exchange between the first fluid A and the second fluid B.
- the heat transfer units 20 and 30 are formed in a square shape when viewed from the X-axis direction.
- the heat transfer units 20 and 30 are formed in a rectangular shape that is elongated in the Z-axis direction when viewed from the X-axis direction.
- the heat transfer units 20 and 30 mainly include an intersection of a center line (hereinafter, referred to as a vertical center line) CL1 extending in the Z-axis direction and a center line (hereinafter, referred to as horizontal center line) CL2 extending in the Y-axis direction.
- Heat transfer portions 20a, 30a and a pair of ends 20b, 30b on both sides of the main heat transfer portions 20a, 30a in the Z-axis direction are included.
- the main heat transfer sections 20a and 30a are formed in a square shape when viewed from the X-axis direction.
- the main heat transfer sections 20a and 30a are formed in a rectangular shape having a length in the Z-axis direction.
- the pair of ends 20b and 30b are continuous with the main heat transfer sections 20a and 30a, and form the entire heat transfer sections 20 and 30 in a square shape (rectangular shape) when viewed from the X-axis direction.
- the first surface S1 and the second surface S2 of the main heat transfer portions 20a, 30a of the heat transfer portions 20, 30 are heat transfer regions 200a, 200b, 300a, 300b.
- Each of the heat transfer regions 200a, 200b, 300a, 300b of the first surface S1 and the second surface S2 has a convex portion 201a, 202a having a length in a direction inclined with respect to the vertical center line CL1 (hereinafter referred to as an inclined direction).
- Groups 201, 202, 301, and 302 include a plurality of uneven groups 201, 202, 301, and 302 arranged in a direction orthogonal to the tilt direction.
- Each of the convex portions 201a, 202a, 301a, 302a of the plurality of concave / convex groups 201, 202, 301, 302 is formed with concave portions 201b, 202b, 301b of the concave / convex groups 201, 202, 301, 302 adjacent in the direction orthogonal to the inclination direction. , 302b.
- each of the concave portions 201b, 202b, 301b, and 302b of the plurality of concave / convex groups 201, 202, 301, and 302 has a convex portion 201a of the concave / convex groups 201, 202, 301, and 302 that are adjacent to each other in a direction orthogonal to the inclination direction. , 202a, 301a, and 302a.
- the projections 201a, 202a, 301a, and 302a of the plurality of rows of unevenness groups 201, 202, 301, and 302 are arranged in a staggered manner in the heat transfer regions 200a, 200b, 300a, and 300b.
- 202, 301, 302 are disposed between the convex portions 201a, 202a, 301a, 302a in the heat transfer regions 200a, 200b, 300a, 300b, and the heat transfer regions 200a, They are arranged in a zigzag pattern within 200b, 300a, and 300b.
- each of the convex portions 201a, 202a, 301a, and 302a of the plurality of concave and convex groups 201, 202, 301, and 302 is formed with the concave portion 201b of the adjacent concave and convex groups 201, 202, 301, and 302. , 202b, 301b, 302b in the Y-axis direction.
- each of the concave portions 201b, 202b, 301b, and 302b of the plurality of concave / convex groups 201, 202, 301, and 302 is different from the convex portions 201a, 202a, 301a, and 302a of the adjacent concave / convex groups 201, 202, 301, and 302. They are arranged side by side in the Y-axis direction.
- the inclination direction is set to a direction inclined at an angle of less than 45 ° with respect to the vertical center line CL1. Accordingly, the inclination angle ⁇ 1 of the virtual line VL with respect to the vertical center line CL1 is set to less than 45 °. That is, the inclination angle ⁇ 2 of the virtual line VL with respect to the horizontal center line CL2 is set to be larger than 45 °. In the present embodiment, the inclination angle ⁇ 1 of the virtual line VL with respect to the vertical center line CL1 is set to 30 ° to 40 °. In the present embodiment, the inclination angle ⁇ 2 of the virtual line VL with respect to the horizontal center line CL2 is set to 60 ° to 70 °.
- the plurality of heat transfer plates 2 and 3 are stacked with the heat transfer portions 20 and 30 (heat transfer regions 200a, 200b, 300a and 300b) facing each other, so that the adjacent heat transfer plates 2 and 3 are stacked.
- the projections 201a, 202a, 301a, and 302a of the three concavo-convex groups 201, 202, 301, and 302 cross each other.
- the longitudinal lengths of the convex portions 201a, 202a, 301a, 302a and the longitudinal lengths of the concave portions 201b, 202b, 301b, 302b included in each of the concavo-convex groups 201, 202, 301, 302 (virtual line VL (The intervals between the convex portions 201a, 202a, 301a, and 302a) arranged in the extending direction of the heat transfer plates 200, 300a, 202a, 301a, and 302a.
- the projections 201a, 202a, 301a, 302a tops of the projections 201a, 202a, 301a, 302a
- the recesses 201b, 202b, 301b, 302b bottoms of the recesses 201b, 202b, 301b, 302b
- the bottoms of the concave portions 201b, 202b, 301b, 302b from the top of the convex portions 201a, 202a, 301a, 302a).
- An intermediate region (not numbered) is formed from the bottom of the recesses 201b, 202b, 301b, 302b to the top of the protrusions 201a, 202a, 301a, 302a).
- This intermediate region is located between the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b in the concave / convex groups 201, 202, 301, 302, and the adjacent concave / convex groups 201, 202, 301, 302.
- the intermediate region may include a middle portion that extends in the Z-axis direction and the Y-axis direction at an intermediate position between the tops of the protrusions 201a, 202a, 301a, and 302a and the bottoms of the recesses 201b, 202b, 301b, and 302b.
- the projections 201a, 202a, 301a, 302a from the top of the projections 201a, 202a, 301a, 302a to the bottom of the depressions 201b, 202b, 301b, 302b (or from the bottom of the depressions 201b, 202b, 301b, 302b, the projections 201a, 202a). , 301a, 302a).
- a pair of through holes 203, 204, 303, 304 penetrating in the X-axis direction are provided in each of the pair of ends 20b, 30b.
- the pair of through holes 203, 204, 303 and 304 are arranged at intervals in the Y-axis direction.
- the pair of through holes 203, 204, 303, 304 are arranged with the vertical center line CL1 interposed therebetween.
- each of the plurality of heat transfer plates 2 and 3 is formed by press-molding a metal plate. Accordingly, in each of the heat transfer plates 2 and 3, the convex portions 201a and 301a of the heat transfer regions 200a and 300a on the first surface S1 and the concave portions 202b and 302b of the heat transfer regions 200b and 300b on the second surface S2 are front and back.
- the concave portions 201b and 301b of the heat transfer regions 200a and 300a on the first surface S1 and the convex portions 202a and 302a of the heat transfer regions 200b and 300b on the second surface S2 have a front and back relationship.
- the groups 202 and 302 are formed in opposite positions at the corresponding positions.
- the plate heat exchanger 1 includes two types of heat transfer plates 2 and 3.
- the two types of heat transfer plates 2 and 3 are different from each other in that the directions in which the annular portions 21 and 31 extend from the heat transfer portions 20 and 30 and the positions of the unevenness of the unevenness groups 201, 202, 301, and 302 are different. They have the same configuration.
- the two types of heat transfer plates 2 and 3 include heat transfer portions 20 and 30 including main heat transfer portions 20a and 30a and a pair of ends 20b and 30b, and annular portions 21 and 31.
- the heat transfer regions 200a, 200b, 300a, 300b of the first surface S1 and the second surface S2 of the main heat transfer portions 20a, 30a are common in having a plurality of uneven groups 201, 202, 301, 302.
- the annular portion 21 extends to the second surface S ⁇ b> 2 side of the heat transfer portion 20
- the annular portion 31 extends to the first surface S1 side of the heat transfer portion 30.
- the plurality of uneven groups 201 and 202 are formed along the X-axis. As seen from the direction, the heat transfer portion 20 is inclined downward from one end to the other end in the Y-axis direction.
- a plurality of unevenness groups 301 and 302 are provided in the heat transfer regions 300a and 300b of the first surface S1 and the second surface S2 of the heat transfer portion 30 (main heat transfer portion 30a) of the second heat transfer plate 3.
- the plurality of uneven groups 301 and 302 of the second heat transfer plate 3 are arranged such that the plurality of uneven groups 201 and 202 of the first heat transfer plate 2 are aligned with the vertical center line CL1 when viewed from the same side in the X-axis direction. The arrangement is reversed.
- the first heat transfer plate 2 and the second heat transfer plate 3 are alternately arranged in the X-axis direction, and the annular portions of the adjacent first heat transfer plate 2 and second heat transfer plate 3 21 and 31 are fitted together (see FIG. 13).
- the first surface S1 of the heat transfer portion 20 of the first heat transfer plate 2 faces the first surface S1 of the heat transfer portion 30 of the second heat transfer plate 3
- the second surface S2 of the heat section 20 faces the second surface S2 of the heat transfer section 30 of the second heat transfer plate 3.
- the transfer of the second heat transfer plate 3 to the respective protrusions 201a of the plurality of uneven groups 201 on the first surface S1 (heat transfer region 200a) of the heat transfer portion 20 of the first heat transfer plate 2 is performed.
- One row of unevenness groups 301 included in the first surface S1 (heat transfer area 300a) of the heat unit 30 intersect, and the projections 301a of the unevenness group 301 intersect. That is, the heat transfer portion of the second heat transfer plate 3 is provided for each of the protrusions 201a of the plurality of uneven groups 201 on the first surface S1 (heat transfer region 200a) of the heat transfer portion 20 of the first heat transfer plate 2.
- the heat transfer portion of the second heat transfer plate 3 is provided to each of the protrusions 202a of the plurality of uneven groups 202 on the second surface S2 (heat transfer region 200b) of the heat transfer portion 20 of the first heat transfer plate 2.
- One row of the uneven groups 302 included in the second surface S2 (the heat transfer region 300b) of 30 intersects, and the convex portions 302a of the uneven group 302 intersect. That is, the heat transfer portion of the second heat transfer plate 3 is moved to the respective protrusions 202a of the plurality of irregularities 202 on the second surface S2 (heat transfer region 200b) of the heat transfer portion 20 of the first heat transfer plate 2.
- One of the convex portions 302a on the second surface S2 (the heat transfer region 300b) of 30 cross-collides.
- the annular portions 21 and 31 of the plurality of heat transfer plates 2 and 3 (first heat transfer plate 2 and second heat transfer plate 3) superimposed in the X-axis direction, and through holes 203, 204, 303 and 304. Is sealed in a liquid-tight manner as appropriate.
- the plurality of heat transfer plates 2 and 3 superimposed in the X-axis direction are integrated by brazing, and the brazing is performed between the annular portions 21 and 31 and the through holes 203, 204, 303, and 304. The surroundings are sealed.
- first and second heat transfer plates 2, 3 (the heat transfer unit 20 of the first heat transfer plate 2 and the heat transfer unit 30 of the second heat transfer plate 3) are bordered by the first heat transfer unit 20.
- a first flow path Ra for flowing the fluid A in the Z-axis direction and a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction.
- the heat transfer included in the concave portion 201b of the heat transfer area 200a included in the first surface S1 of the heat transfer portion 20 of the first heat transfer plate 2 and the first surface S1 of the heat transfer portion 30 of the second heat transfer plate 3 The space formed by the concave portion 301b of the region 300a constitutes the first flow path Ra, and the concave portion 202b of the heat transfer region 200b and the second portion Sb included in the second surface S2 of the heat transfer portion 20 of the first heat transfer plate 2.
- the space formed by the concave portion 302b of the heat transfer region 300b included in the second surface S2 of the heat transfer portion 30 of the heat transfer plate 3 forms a second flow path Rb.
- first heat transfer plate 2, second heat transfer plate 3 the corresponding through holes 203, 204, 303, 304 of the plurality of heat transfer plates 2, 3 (first heat transfer plate 2, second heat transfer plate 3) are connected in the X-axis direction, and only the first flow path Ra is provided.
- a pair of first series passages Ra1 and Ra2 that allow the first fluid A to flow into and out of the first flow passage Ra.
- the plate heat exchanger 1 according to the present embodiment is as described above, supplies the first fluid A to one of the first series passages Ra1, and supplies the second fluid B to one of the second communication passages Rb1. Then, the first fluid A flows into each of the plurality of first flow paths Ra from one of the first series passages Ra1, and the second fluid B flows from the one of the second communication paths Rb1 to the plurality of second flow paths Rb. Flow into each.
- the first fluid A flows in the Z-axis direction in the first flow path Ra
- the second fluid B flows in the Z-axis direction in the second flow path Rb. That is, the first fluid A flows from one end of the heat transfer regions 200a, 300a in the Z-axis direction to the other end in the first flow channel Ra, and the second fluid B flows in the second flow channel Rb.
- the heat flows from the other ends of the heat transfer regions 200b and 300b in the Z-axis direction toward one end.
- the first fluid A flowing in the first flow path Ra flows along the concave portions 201b and 301b in the heat transfer regions 200a and 300a, and the first fluid A flows in the concave portions 201b and 301b. It collides with the convex portions 201a and 301a (the convex portions 201a and 301a adjacent to the concave portions 201b and 301b) of the included concave and convex groups 201 and 301. As a result, the first fluid A tries to get over the convex portions 201a and 301a.
- the first fluid A tends to flow to the heat transfer plates 2 and 3 of the counterpart with respect to the heat transfer plates 2 and 3 having the concave portions 201 b and 301 b circulated.
- the single convex portions 201a and 301a of the adjacent heat transfer plates 2 and 3 cross abut with each other, and the convex portions 201a and 301a of the mating heat transfer plates 2 and 3 are opposed to each other.
- the concavo-convex groups 201 and 301 including 201a and 301a and the concave parts 201b and 301b of another concavo-convex group 201 and 301 are arranged side by side.
- the first fluid A which collides with the convex portions 201a and 301a and changes the flow direction, moves onto the concave portions 201b and 301b of the mating heat transfer plates 2 and 3, and flows along the concave portions 201b and 301b. Then, it collides with the convex portions 201a, 301a (the convex portions 201a, 301a adjacent to the concave portions 201b, 301b) of the concave / convex groups 201, 301 including the concave portions 201b, 301b.
- the first fluid A tries to get over the convex portions 201a and 301a, and flows to the heat transfer plates 2 and 3 of the counterpart with respect to the heat transfer plates 2 and 3 having the concave portions 201b and 301b.
- the single convex portions 201a, 202a, 301a, and 302a of the adjacent heat transfer plates 2 and 3 cross abut with each other at the center, and the convex portions 201a and 301a of the other heat transfer plates 2 and 3 are opposed to each other.
- the concavo-convex groups 201 and 301 including the convex portions 201a and 301a and the concave portions 201b and 301b of another concavo-convex group 201 and 301 exist side by side, they collide with the convex portions 201a and 301a and change the flow direction.
- the changed first fluid A transfers to the concave portions 201b and 301b of the heat transfer plates 2 and 3 of the other party, and flows along the concave portions 201b and 301b.
- the first fluid A sequentially passes through the plurality of concave portions 201b and 301b of the adjacent heat transfer plates 2 and 3 (the concave portions 201b and 301b in which the inclined directions of the adjacent heat transfer plates 2 and 3 are different). Move toward the downstream side while moving. That is, the first fluid A flows downstream while creating a spiral flow. Thereby, the flow of the first fluid A is disturbed in the first flow path Ra.
- the concavo-convex groups 201 and 301 are inclined at less than 45 ° with respect to the vertical center line CL1, the direction in which the first fluid A flows is different. It is arranged at an angle that contains many components. Accordingly, when the first fluid A flows downstream, the first fluid A easily flows along the concave portions 201b and 301b, so that an increase in the flow resistance is suppressed.
- the plurality of uneven groups 202 and 302 of the main heat transfer portions 20a and 30a (the heat transfer areas 200b and 300b on the second surface S2) that define the second flow path Rb define the first flow path Ra.
- This is a mode in which the unevenness relationship is reversed with respect to the plurality of unevenness groups 201 and 301 of the main heat transfer portions 20a and 30a (the heat transfer regions 200a and 300a on the first surface S1). Since the single protrusions 201a and 301a are in cross-collision with 301a, as shown in FIG. 20, the second fluid B flowing in the second flow path Rb also flows in the first flow path Ra. Similarly to the first fluid A, the fluid flows downstream while forming a spiral flow.
- the first fluid A flows through the first flow channel Ra
- the second fluid B flows through the second flow channel Rb.
- Heat is exchanged via main heat transfer sections 20a, 30a (heat transfer areas 200a, 200b, 300a, 300b) that partition Ra and second flow path Rb.
- the first fluid A that has completed the heat exchange is discharged from the first flow path Ra to the outside through the other first series passage Ra2
- the second fluid B that has completed the heat exchange is the second fluid B. It is discharged from the two flow paths Rb to the outside via the other second communication path Rb2.
- the plate heat exchanger 1 includes the heat transfer plates 2 and 3 including the heat transfer regions 200a, 200b, 300a, and 300b on both surfaces in the X-axis direction. Regions 200a, 200b, 300a, and 300b are provided with a plurality of heat transfer plates 2 and 3 superposed in the X-axis direction.
- a first flow path Ra for flowing in the Z-axis direction orthogonal to the direction and a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction, and the heat transfer regions 200a, 200b, 300a and 300b include convex portions 201a, 202a, 301a and 302a and concave portions 201b, 202b, 301b and 302b having a length in a direction inclined with respect to the longitudinal center line CL1 extending in the Z-axis direction.
- the projections 201a, 202a, 301a, 302a and the depressions 201b, 202b, 301b, 302b are irregular groups 201, 202, 301, 302 alternately arranged along a virtual line VL extending in the inclined direction.
- It has a plurality of concavo-convex groups 201, 202, 301, 302 arranged in a direction orthogonal to the direction of inclination, and each of the convex portions 201a, 202a, 301a, 302a of the plurality of concavo-convex groups 201, 202, 301, 302
- the recesses 201b, 202b, 301b, 302b of the concavo-convex groups 201, 202, 301, 302 adjacent in the direction perpendicular to the tilting direction are arranged side by side, and the plurality of concavo-convex groups 201, 202, 301, Each of the recesses 201b, 202b, 301b, 302b of the 302 is orthogonal to the tilting direction.
- the heat transfer regions 200a, 200b, 300a, 300b are arranged side by side with respect to the protrusions 201a, 202a, 301a, 302a of the concavo-convex groups 201, 202, 301, 302 adjacent in the same direction, and the heat transfer regions 200a, 200b, 300a, 300b face each other.
- the plates 2 and 3 are characterized in that the protrusions 201a, 202a, 301a and 302a of the concavo-convex groups 201, 202, 301 and 302 are cross-imputed with each other.
- the protrusions 201a, 202a, 301a, 302a and the recesses 201b of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer plates 2, 3 heat transfer regions 200a, 200b, 300a, 300b).
- 202b, 301b, 302b are arranged in a staggered manner.
- the plurality of convex portions 201a, 202a, 301a, 302a are arranged in a staggered manner in the heat transfer regions 200a, 200b, 300a, 300b, and the plurality of concave portions 201b, 202b, 301b, 302b are formed in the heat transfer regions 200a, 200b,
- the plurality of protrusions 201a, 202a, 301a, and 302a are arranged in a staggered manner in 300a and 300b.
- the first fluid A flows in the Z-axis direction in the first flow path Ra
- the first fluid A is transferred to the concave portions 201b and 301b in the heat transfer plates 2 and 3 (heat transfer areas 200a and 300a) that define the first flow path Ra. It flows along and collides with the convex portions 201a, 301a adjacent on the downstream side of the concave portions 201b, 301b (the convex portions 201a, 301a of the common concave / convex groups 201, 301).
- the flow of the first fluid A changes, and the first fluid A is filled with the peripheral concave portions 201b and 301b (for example, concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides, and concave and convex groups of the heat transfer plates 2 and 3 on the other side).
- 201, 301 and flows along the concave portions 201b, 301b.
- the first fluid A flows downstream while repeating the flow along the concave portions 201b and 301b and the collision with the convex portions 201a and 301a.
- the concave portions 202b and 302b in the heat transfer plates 2 and 3 heat transfer areas 200b and 300b that define the second flow path Rb. And collides with the adjacent convex portions 202a, 302a on the downstream side of the concave portions 202b, 302b (the convex portions 202a, 302a of the common concave / convex groups 202, 302).
- the flow of the second fluid B is changed, and the second fluid B is filled with the peripheral concave portions 202b and 302b (for example, the concave portions 202b and 302b of the concave and convex groups 202 and 302 on both sides, and the concave and convex groups of the heat transfer plates 2 and 3 on the other side).
- 202, 302b the concave portions 202b and 302b of the concave and convex groups 202 and 302 on both sides, and the concave and convex groups of the heat transfer plates 2 and 3 on the other side.
- 202, 302b the second fluid B flows downstream while repeating the flow along the concave portions 202b and 302b and the collision with the convex portions 202a and 302a.
- each of the first fluid A and the second fluid B collides with the convex portions 201a, 202a, 301a, 302a of the concave and convex groups 201, 202, 301, 302 including the concave portions 201b, 202b, 301b, 302b,
- the flows of the first fluid A and the second fluid B are disturbed, and high heat transfer performance is obtained.
- One of the convex portions 201a, 202a, 301a, and 302a of the first and second portions 301 and 302 is cross-imputed.
- the first fluid A colliding with the protrusions 201a, 301a is applied to the heat transfer plates 2, 3 having the unevenness groups 201, 301 including the protrusions 201a, 301a.
- the second fluid B guided to the concave portions 201b, 301b of the three concavo-convex groups 201, 301 and colliding with the convex portions 202a, 302a receives the heat transfer plates 2, 3 having the concavo-convex groups 202, 302 including the convex portions 202a, 302a. Is guided to the concave portions 202b and 302b of the concave and convex groups 202 and 302 of the heat transfer plates 2 and 3 on the other side.
- the plurality of uneven groups 201, 202, 301, and 302 in the common heat transfer regions 200a, 200b, 300a, and 300b are inclined in the direction inclined with respect to the vertical center line CL1 (the virtual line VL extends).
- the projections 201a, 202a, 301a, 302a of the different concavo-convex groups 201, 202, 301, 302 extend in the direction in which the concavo-convex groups 201, 202, 301, 302 extend (the virtual line VL). (Extending direction).
- the convex portions 201a, 202a, 301a, and 302a of the different concavo-convex groups 201, 202, 301, and 302 are arranged at intervals in a direction orthogonal to the direction in which the virtual line VL extends.
- each of the protrusions 201a, 202a, 301a, and 302a included in the concavo-convex groups 201, 202, 301, and 302 has a different concavo-convex group 201, 202, 301, and 302 of the other heat transfer plates 2 and 3 respectively.
- One convex part 201a, 202a, 301a, 302a crosses.
- the convex portions 201a, 202a, 301a, and 302a of the adjacent heat transfer plates 2 and 3 cross abut with each other, and the concave portions 201b, 202b, 301b, and 302b of the adjacent heat transfer plates 2 and 3 form an interval. Cross in the open state.
- the concave portions 201b and 301b enters the recesses 201b, 301b intersecting the recesses 201b, 301b that are side by side with the bumps 201a, 301a that collide, and flows along the recesses 201b, 301b of the heat transfer plates 2, 3 of the other party.
- the concavo-convex groups 201, 202, 301, 302 are arranged in the Z-axis direction.
- the first fluid extends along the imaginary line VL that is inclined with respect to the longitudinal center line CL1 that extends (extends in the flow direction of the first fluid A) (the concave portions 201b and 301b are elongated in the inclined direction).
- the first fluid A flows spirally as A flows downstream while sequentially moving through the concave portions 201b and 301b of the adjacent heat transfer plates 2 and 3. This flow (spiral flow) is the same for the second fluid B.
- the first fluid A creates a spiral flow in the first flow path Ra
- the second fluid B creates a spiral flow in the second flow path Rb.
- the first fluid A creates a spiral flow in the first flow path Ra
- the second fluid B creates a spiral flow in the second flow path Rb. Since the respective flows of the first fluid A and the second fluid B are further turbulent, the turbulence of the flows exerts a mixing function.
- the plate heat exchanger 1 can prevent components contained in at least one of the first fluid A and the second fluid B from being separated in the flow process.
- the plate heat exchanger 1 is configured such that a fluid in which two or more types of liquids are combined or one or more types of liquids and powders are supplied to one of the first channel Ra and the second channel Rb.
- a fluid in which two or more types of liquids are combined or one or more types of liquids and powders are supplied to one of the first channel Ra and the second channel Rb.
- the plate heat exchanger 1 according to the present embodiment can also function as a mixer that mixes a plurality of components contained in either the first fluid A or the second fluid B. That is, the plate heat exchanger 1 according to the present embodiment mixes the first fluid A and the second fluid B while mixing a plurality of components contained in either the first fluid A or the second fluid B.
- the reactor contained in the first fluid A or the second fluid B reacts with each other. Function.
- the virtual line VL which is a reference for the arrangement of the concavo-convex groups 201, 202, 301, and 302, is inclined at an angle of less than 45 ° with respect to the vertical center line CL1 extending in the Z-axis direction.
- the components in the direction extending in the longitudinal direction of the concave portions 201b, 202b, 301b, and 302b included in the concave and convex groups 201, 202, 301, and 302 are the component of the flow direction of the first fluid A and the second fluid B in the flow direction. Is included more than the component in the direction orthogonal to.
- the plate heat exchanger 1 according to the present embodiment an excellent effect that high heat transfer performance can be obtained while suppressing an increase in fluid flow resistance can be achieved.
- the plurality of heat transfer plates 2 and 3 stacked in the first direction are brazed to each other, and the space between the heat transfer plates 2 and 3 is sealed in a liquid-tight manner.
- the present invention is not limited to this.
- an annular gasket that defines a flow path between adjacent heat transfer plates 2 and 3 may be arranged, and the heat transfer plates 2 and 3 may be sealed by the gasket.
- the plate heat exchanger 1 includes two types of heat transfer plates 2 and 3 in which the positions of the concavities and convexities of the concavo-convex groups 201, 202, 301, and 302 are different. , 3 (first heat transfer plate 2, second heat transfer plate 3) are alternately superposed, but the present invention is not limited to this.
- each of the projections 201a, 202a, 301a, and 302a of the plurality of uneven groups 201, 202, 301, and 302 in the heat transfer regions 200a, 200b, 300a, and 300b of the heat transfer plates 2 and 3 is arranged in the first direction. At least two of the uneven groups 201, 202, 301, 302 of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the adjacent heat transfer plates 2, 3 adjacent to each other.
- the position, size (length, width), interval (pitch), and the like of the unevenness of the unevenness groups 201, 202, 301, and 302 of the heat transfer plates 2 and 3 are set so as to abut each other.
- the same heat transfer plates 2 and 3 (common heat transfer plates 2 and 3) may be overlapped in the X-axis direction.
- each heat transfer plate 2 and 3 when the plurality of heat transfer plates 2 and 3 are brazed to each other, since each heat transfer plate 2 and 3 includes the annular portions 21 and 31, X The heat transfer plates 2 and 3 are arranged by rotating every 180 degrees around an imaginary line extending in the X-axis direction in the axial direction.
- the heat transfer plates 2 and 3 does not include the annular portions 21 and 31, the heat transfer plates 2 and 3 are alternately rotated by 180 ° about an imaginary line extending in the X-axis direction in the X-axis direction, or the vertical center line CL1 or the horizontal center. It is arranged to be inverted by 180 ° with reference to the line CL2 (center).
- each of the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b included in the concave and convex groups 201, 202, 301, 302 of the heat transfer plates 2, 3 is arranged in the Z-axis direction.
- the present invention is not limited to this.
- each of the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b included in the concavo-convex groups 201, 202, 301, 302 of the heat transfer plates 2, 3 has a vertical center line extending in the Z-axis direction. It may extend along an imaginary line VL inclined at an inclination angle of 45 ° or more with respect to CL1. However, since the virtual line VL must be inclined with respect to the vertical center line CL1 extending in the Z-axis direction, the virtual line VL is inclined by less than 90 ° with respect to the vertical center line CL1 extending in the Z-axis direction. Needless to say, this must be done.
- the concave portions 201b, 202b, 301b, 302b of the plurality of concave and convex groups 201, 202, 301, 302 are adjacent to the convex portions 201a, 202a of the concave and convex groups 201, 202, 301, 302.
- , 301a, and 302a are arranged side by side in the Y-axis direction, but are not limited thereto.
- the convex portions 201a, 202a, 301a, and 302a of the plurality of concavo-convex groups 201, 202, 301, and 302 are inclined with the concave portions 201b, 202b, 301b, and 302b of the adjacent concavo-convex groups 201, 202, 301, and 302, respectively.
- the concavo-convex group 201 is arranged side by side in the orthogonal direction (the combined direction of the Y-axis direction and the Z-axis direction), and the concave portions 201b, 202b, 301b, and 302b of the plural concavo-convex groups 201, 202, 301, and 302 are adjacent to each other.
- 202, 301, 302 may be arranged side by side in a direction orthogonal to the inclination direction with respect to the projections 201a, 202a, 301a, 302a (the combined direction of the Y-axis direction and the Z-axis direction).
- the concave portions 201b, 202b, 301b, 302b and the convex portions 201a, 202a, 301a, 302a of the concave and convex groups 201, 202, 301, 302 extend straight along the virtual line VL. It is not limited to.
- the concave portions 201b, 202b, 301b, 302b and the convex portions 201a, 202a, 301a, 302a are formed.
- Each may be formed in a curved shape (S-shape or inverted S-shape) when viewed from the X-axis direction.
- the plate heat exchanger 1 when the plate heat exchanger 1 is caused to function as a mixer, the plate heat exchanger 1 may be connected to one of the first series passages Ra1 or one of the second communication passages Rb1.
- a fluid in which two or more kinds of liquids to be mixed are combined, or a fluid in which one or more kinds of liquids and powder are combined may be supplied as the first fluid A or the second fluid B.
- two or more of one of the first series passages Ra1 or the one second communication passage Rb1 as a supply source of the fluid are provided, and a liquid or the like to be mixed is supplied to each of them. You may make it join in the path
- SYMBOLS 1 DESCRIPTION OF SYMBOLS 1 ... Plate type heat exchanger, 2 ... 1st heat transfer plate (heat transfer plate), 3 ... 2nd heat transfer plate (heat transfer plate), 20, 30 ... Heat transfer part, 20a, 30a ... Main heat transfer part .., 20b, 30b end portions, 21, 31 annular portions, 200a, 200b, 300a, 300b heat transfer regions, 201, 202, 301, 302 uneven portions, 201a, 202a, 301a, 302a convex portions, 201b , 202b, 301b, 302b: recess, 203, 204, 303, 304: through hole, A: first fluid, B: second fluid, CL1: vertical center line (center line), CL2: horizontal center line (center line) ), Ra: first flow path, Ra1, Ra2: first communication path, Rb: second flow path, Rb1, Rb2: second communication path, S1: first surface, S2: second surface, V
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Abstract
The present invention provides a plate heat exchanger that can obtain a high heat transferability while preventing increased flow resistance of a fluid. The plate heat exchanger comprises a plurality of heat transfer plates that include heat transfer regions. A first channel, in which a first fluid flows in a second direction orthogonal to a first direction, and a second channel, in which a second fluid flows in the second direction, are formed to alternate in the first direction with the heat transfer plates serving as boundaries. The heat transfer regions have a plurality of recess and protrusion groups each of which includes protrusions and recesses that stretch in a direction slanted with respect to the centerline of same extending in the second direction and are arranged alternately along a virtual line extending in the direction that the protrusions and recesses are slanted, said plurality of recess and protrusion groups being arranged orthogonal to the slanted direction. Protrusions in a recess and protrusion group are disposed side by side with recesses in an adjacent recess and protrusion group. Recesses in a recess and protrusion group are disposed side by side with protrusions in an adjacent recess and protrusion group. Protrusions of a recess and protrusion group of adjacent heat transfer plates intersect and abut each other.
Description
本願は、2018年8月29日出願の日本国特願2018-160542号の優先権を主張し、この出願が引用によって組み込まれる。
This application claims the priority of Japanese Patent Application No. 2018-160542 filed on Aug. 29, 2018, which is incorporated by reference.
本発明は、第一流体と第二流体とを熱交換させるプレート式熱交換器に関する。
The present invention relates to a plate heat exchanger for exchanging heat between a first fluid and a second fluid.
従来から、第一流体と第二流体とを熱交換させるプレート式熱交換器が提供されている。プレート式熱交換器は、第一方向の両面に伝熱領域を含む伝熱プレートであって、それぞれの伝熱領域が第一方向に重ね合わされた複数の伝熱プレートを備える(例えば、特許文献1参照)。
プ レ ー ト Conventionally, a plate heat exchanger for exchanging heat between a first fluid and a second fluid has been provided. The plate heat exchanger is a heat transfer plate including heat transfer regions on both surfaces in the first direction, and includes a plurality of heat transfer plates in which the respective heat transfer regions are overlapped in the first direction (for example, Patent Document 1). 1).
複数の伝熱プレートのそれぞれの伝熱領域は、第一方向と直交する第二方向に延びる自身の中心線(以下、縦中心線という)に対して傾斜する方向に連続的に延びる複数の凸条及び凹条を含む。伝熱領域内において、凸条及び凹条は、自身の延びる方向と直交する方向に交互に配置される。なお、伝熱プレートは、一般的に、金属プレートをプレス成型して作製される。そのため、一方の面の伝熱領域の凸条と他方の面の伝熱領域の凹条とは、表裏の関係にあり、一方の面の伝熱領域の凹条と他方の面の伝熱領域の凸条とは、表裏の関係にある。
Each of the heat transfer regions of the plurality of heat transfer plates has a plurality of protrusions extending continuously in a direction inclined with respect to its own center line (hereinafter, referred to as a vertical center line) extending in a second direction orthogonal to the first direction. Includes ridges and valleys. In the heat transfer region, the ridges and the ridges are alternately arranged in a direction orthogonal to a direction in which the ridges extend. The heat transfer plate is generally manufactured by press-molding a metal plate. Therefore, the ridges of the heat transfer region on one surface and the ridges of the heat transfer region on the other surface are in a front-to-back relationship, and the ridge of the heat transfer region on one surface and the heat transfer region on the other surface. Has a front-to-back relationship.
この種のプレート式熱交換器において、複数の伝熱プレートは、互いの伝熱領域を第一方向に重ね合わせた状態にされ、隣り合う伝熱プレート(伝熱領域)の凸条同士が格子状に配置される。すなわち、複数の伝熱プレートは、隣り合う伝熱プレート(伝熱領域)の凸条同士が交差衝合した状態になるように配置される。
In this type of plate heat exchanger, the plurality of heat transfer plates are in a state in which the heat transfer regions are overlapped in the first direction, and the ridges of the adjacent heat transfer plates (heat transfer regions) are latticed. It is arranged in a shape. That is, the plurality of heat transfer plates are arranged such that the ridges of the adjacent heat transfer plates (heat transfer regions) are in a state of crossing abutment.
これにより、この種のプレート式熱交換器では、第一流体を第二方向に流通させる第一流路と、第二流体を第二方向に流通させる第二流路とが、各伝熱プレートを境にして第一方向で交互に形成され、第一流路を流通する第一流体と第二流路を流通する第二流体とを伝熱プレートを介して熱交換させる。
Thereby, in this type of plate heat exchanger, the first flow path for flowing the first fluid in the second direction, and the second flow path for flowing the second fluid in the second direction, each heat transfer plate The first fluid flowing in the first flow path and the second fluid flowing in the second flow path are heat-exchanged via the heat transfer plate.
ところで、この種のプレート式熱交換器では、伝熱プレートの伝熱領域内にある凸条及び凹条は、縦中心線に対して傾斜する方向に連続的に延びているため、凸条及び凹条の延びる方向(縦中心線に対する傾斜角度)によって、第一流体及び第二流体の流通抵抗や、第一流体と第二流体との熱交換性能(伝熱性能)が異なる。
By the way, in this type of plate heat exchanger, the ridges and recesses in the heat transfer region of the heat transfer plate extend continuously in a direction inclined with respect to the vertical center line. The flow resistance of the first fluid and the second fluid and the heat exchange performance (heat transfer performance) between the first fluid and the second fluid differ depending on the direction in which the concave stripe extends (the inclination angle with respect to the vertical center line).
具体的に説明すると、縦中心線に対する凸条及び凹条の傾斜角度が大きい場合(第一方向及び第二方向と直交する第三方向に延びる伝熱領域の中心線(以下、横中心線という)に対する凸条及び凹条の傾斜角度が小さい場合)、複数の凸条のそれぞれが流体(第一流体、第二流体)の流れ方向の成分の少ない方向に延びる(凸条が流体の流れ方向を横切るような配置になる)。そのため、第一流体及び第二流体のそれぞれは、複数の凸条を繰り返し乗り越えつつ流路(第一流路又は第二流路)内を第二方向に流通しようとする。その結果、第一流体及び第二流体のそれぞれの流れに乱れが生じ、高い伝熱性能が得られるが、第一流路及び第二流路のそれぞれでの圧力損失(流通抵抗)が非常に大きくなってしまう。
More specifically, when the inclination angle of the ridge and the ridge with respect to the vertical center line is large (the center line of the heat transfer region extending in the third direction orthogonal to the first direction and the second direction (hereinafter referred to as the horizontal center line) ), Each of the plurality of ridges extends in a direction in which the component of the flow direction of the fluid (first fluid, second fluid) is small (the ridges are in the flow direction of the fluid). Is arranged so that it crosses). Therefore, each of the first fluid and the second fluid tends to flow in the flow path (the first flow path or the second flow path) in the second direction while repeatedly climbing over the plurality of ridges. As a result, the respective flows of the first fluid and the second fluid are disturbed, and high heat transfer performance is obtained, but the pressure loss (flow resistance) in each of the first flow path and the second flow path is extremely large. turn into.
これに対し、縦中心線に対する凸条及び凹条の傾斜角度が小さい場合(横中心線に対する凸条及び凹条の傾斜角度が大きい場合)、複数の凸条のそれぞれが流体(第一流体、第二流体)の流れる方向の成分の多い方向に延びる(凸条が流体の流れ方向に従うような配置になる)。そのため、第一流体及び第二流体のそれぞれは、凸条を大きく乗り越えることなく第二方向に流通しようとする。その結果、第一流路及び第二流路のそれぞれでの圧力損失(流通抵抗)が小さくなるが、第一流体及び第二流体のそれぞれの流れに乱れが生じ難くなり、高い伝熱性能が得られなくなる。
On the other hand, when the inclination angles of the ridges and the recesses with respect to the vertical center line are small (when the inclination angles of the ridges and the recesses with respect to the horizontal center line are large), each of the plurality of ridges is fluid (the first fluid, It extends in the direction in which the component of the direction of flow of the second fluid) is large (the ridges are arranged so as to follow the flow direction of the fluid). Therefore, each of the first fluid and the second fluid tries to circulate in the second direction without largely climbing over the ridge. As a result, the pressure loss (flow resistance) in each of the first flow path and the second flow path is reduced, but the flow of the first fluid and the second fluid is less likely to be disturbed, and high heat transfer performance is obtained. Can not be.
そこで、本発明は、流体の流通抵抗の増加を抑えつつ、高い伝熱性能を得ることのできるプレート式熱交換器を提供することを課題とする。
Therefore, an object of the present invention is to provide a plate heat exchanger that can achieve high heat transfer performance while suppressing an increase in fluid flow resistance.
本発明に係るプレート式熱交換器は、第一方向の両面に伝熱領域を含む伝熱プレートであって、それぞれの伝熱領域が第一方向に重ね合わされた複数の伝熱プレートを備え、該複数の伝熱プレートのそれぞれを境にして、第一流体を第一方向と直交する第二方向に流通させる第一流路と、第二流体を第二方向に流通させる第二流路とが第一方向で交互に形成され、伝熱領域は、第二方向に延びる自身の中心線に対して傾斜する方向に長手を有する凸部及び凹部を含み且つ該凸部及び凹部が前記傾斜する方向に延びる仮想線に沿って交互に並ぶ凹凸群であって、前記傾斜する方向と直交する方向に並ぶ複数の凹凸群を有し、該複数の凹凸群のそれぞれの凸部は、前記傾斜する方向と直交する方向で隣り合う凹凸群の凹部に対して横並びに配置されるとともに、前記複数の凹凸群のそれぞれの凹部は、前記傾斜する方向と直交する方向で隣り合う凹凸群の凸部に対して横並びに配置され、伝熱領域を対向させて隣り合う伝熱プレートは、互いの凹凸群の凸部同士を交差衝合させていることを特徴とする。
The plate heat exchanger according to the present invention is a heat transfer plate including heat transfer regions on both surfaces in the first direction, including a plurality of heat transfer plates each heat transfer region is overlapped in the first direction, A first flow path that allows the first fluid to flow in a second direction orthogonal to the first direction, and a second flow path that allows the second fluid to flow in the second direction, with each of the plurality of heat transfer plates as a boundary. The heat transfer region is formed alternately in the first direction, and includes a convex portion and a concave portion having a length in a direction inclined with respect to its own center line extending in the second direction, and the convex portion and the concave portion are in the inclined direction. A plurality of concavo-convex groups alternately arranged along a virtual line extending in the direction in which the plurality of concavo-convex groups are arranged in a direction orthogonal to the direction of inclination. It is arranged side by side with the concave part of the concavo-convex group adjacent in the direction orthogonal to The concave portions of the plurality of concave / convex groups are arranged side by side with the convex portions of the concave / convex groups adjacent in the direction orthogonal to the inclined direction, and the heat transfer plates adjacent to each other with the heat transfer regions facing each other. Is characterized in that the protruding portions of the concavo-convex groups are cross-imputed with each other.
上記構成によれば、伝熱プレート(伝熱領域)にある複数の凹凸群の凸部及び凹部のそれぞれが千鳥状に配置される。すなわち、複数の凸部が伝熱領域内に千鳥状に配置され、複数の凹部が伝熱領域内に複数の凸部を躱して千鳥状に配置される。
According to the above configuration, each of the protrusions and recesses of the plurality of unevenness groups on the heat transfer plate (heat transfer region) is arranged in a staggered manner. That is, the plurality of convex portions are arranged in a staggered manner in the heat transfer region, and the plurality of concave portions are arranged in a staggered manner avoiding the plurality of convex portions in the heat transfer region.
これにより、第一流体は、第一流路で第二方向に流通するに当たり、第一流路を画定する伝熱プレート(伝熱領域)にある凹部に沿って流れ、該凹部の下流側で隣り合う凸部(共通の凹凸群の凸部)と衝突する。そうすると、第一流体の流れが変わり、第一流体は、周辺の凹部(例えば、両側の凹凸群の凹部、相手方の伝熱プレートの凹凸群の凹部等)に乗り移って該凹部に沿って流れる。このように、第一流体は、凹部に沿った流れと、凸部に対する衝突を繰り返しつつ、下流側に流れる。
Thereby, when flowing the first fluid in the second direction in the first flow path, the first fluid flows along the concave portion in the heat transfer plate (heat transfer region) that defines the first flow path, and is adjacent on the downstream side of the concave portion. It collides with a convex part (a convex part of a common unevenness group). Then, the flow of the first fluid changes, and the first fluid transfers to the peripheral concave portions (for example, concave portions of the concave and convex groups on both sides, concave portions of the concave and convex groups of the counterpart heat transfer plate, and the like) and flows along the concave portions. As described above, the first fluid flows downstream while repeating the flow along the concave portion and the collision with the convex portion.
また、第二流体は、第二流路で第二方向に流通するに当たり、第二流路を画定する伝熱プレート(伝熱領域)にある凹部に沿って流れ、該凹部の下流側で隣り合う凸部(共通の凹凸群の凸部)と衝突する。そうすると、第二流体の流れが変わり、第二流体は、周辺の凹部(例えば、両側の凹凸群の凹部、相手方の伝熱プレートの凹凸群の凹部)に乗り移って該凹部に沿って流れる。このように、第二流体は、凹部に沿った流れと、凸部に対する衝突を繰り返しつつ、下流側に流れる。
When the second fluid flows in the second direction in the second flow path, the second fluid flows along a concave portion in the heat transfer plate (heat transfer region) defining the second flow path, and is adjacent to the downstream side of the concave portion. It collides with a matching convex part (a convex part of a common unevenness group). Then, the flow of the second fluid changes, and the second fluid transfers to the peripheral concave portions (for example, concave portions of the concave and convex groups on both sides, concave portions of the concave and convex groups of the counterpart heat transfer plate) and flows along the concave portions. As described above, the second fluid flows downstream while repeating the flow along the concave portion and the collision with the convex portion.
以上のように、第一流体及び第二流体のそれぞれが流路(第一流路又は第二流路)を画定する伝熱領域にある凹部に沿って流れるため、上記構成のプレート式熱交換器では、流通抵抗の増大が抑えられる。また、第一流体及び第二流体のそれぞれが、凹部を含む凹凸群の凸部と衝突するため、上記構成のプレート式熱交換器では、第一流体及び第二流体のそれぞれの流れに乱れが生じることになり、高い伝熱性能が得られる。
As described above, since each of the first fluid and the second fluid flows along the concave portion in the heat transfer region that defines the flow path (the first flow path or the second flow path), the plate heat exchanger having the above configuration is used. Thus, an increase in distribution resistance can be suppressed. In addition, since each of the first fluid and the second fluid collides with the convex portion of the concave / convex group including the concave portion, in the plate heat exchanger having the above configuration, the respective flows of the first fluid and the second fluid are disturbed. This results in high heat transfer performance.
本発明の一態様として、伝熱プレートの伝熱領域にある複数の凹凸群の凸部のそれぞれは、第一方向で隣り合う相手方の伝熱プレートの伝熱領域にある複数の凹凸群のうちの少なくとも二つの凹凸群の凸部と交差衝合してもよい。
As one embodiment of the present invention, each of the protrusions of the plurality of unevenness groups in the heat transfer area of the heat transfer plate is one of the plurality of unevenness groups in the heat transfer area of the partner heat transfer plate adjacent in the first direction. May be cross-impacted with the projections of at least two uneven groups.
このようにすれば、凸部に衝突した第一流体が該凸部を含む凹凸群の両側にある凹凸群の凹部に誘導され、凸部に衝突した第二流体が該凸部を含む凹凸群の両側にある凹凸群の凹部に誘導される。
With this configuration, the first fluid that collides with the convex portion is guided to the concave portions of the concave / convex group on both sides of the concave / convex group including the convex portion, and the second fluid that collides with the convex portion includes the concave / convex group including the convex portion. Are guided to the concave portions of the concave and convex groups on both sides of the concave portion.
具体的に説明すると、共通の伝熱領域内にある複数の凹凸群は、中心線に対して傾斜する方向(仮想線の延びる方向)に対して直交方向に並ぶため、異なる凹凸群の凸部は、凹凸群の延びる方向(中心線に対して傾斜する方向)に対して直交する方向の異なる位置に配置される。すなわち、異なる凹凸群の凸部は、傾斜する方向(仮想線の延びる方向)と直交する方向に間隔をあけて配置される。
More specifically, since the plurality of uneven groups in the common heat transfer region are arranged in a direction orthogonal to the direction inclined with respect to the center line (the direction in which the imaginary line extends), the protrusions of the different uneven groups are different. Are arranged at different positions in a direction orthogonal to the direction in which the unevenness group extends (the direction inclined with respect to the center line). That is, the protrusions of the different concavo-convex groups are arranged at intervals in a direction orthogonal to the direction of inclination (the direction in which the imaginary line extends).
従って、伝熱プレートの伝熱領域にある複数の凹凸群の凸部のそれぞれに対し、該凸部の長手方向に間隔をあけて相手方の伝熱プレートの少なくとも二つの凸部(異なる凹凸群の凸部)が交差衝合する。
Therefore, for each of the plurality of protrusions of the plurality of unevennesses in the heat transfer region of the heat transfer plate, at least two protrusions (of different unevenness (Convex part) cross-collides.
すなわち、伝熱プレートの伝熱領域にある複数の凹凸群の凸部のそれぞれの端部又はその近傍に対し、相手方の伝熱プレートの凸部(異なる凹凸群の凸部)が交差衝合する。
That is, the projections of the mating heat transfer plate (projections of different projections and depressions) cross-impact with each end of or near the projections of the projections and depressions of the plurality of projections and depressions in the heat transfer region of the heat transfer plate. .
これにより、凸部に衝突した第一流体が、相手方の伝熱プレート側に流れようとしても該相手方の伝熱プレートの凸部によって阻止され、結果的に衝突した凸部を含む凹凸群の両側にある凹凸群の凹部に誘導(分岐)され、該凹部に沿って流れる。そして、凹部に沿って流れた第一流体は、該凹部と隣り合う凸部と衝突する。
Thereby, even if the first fluid colliding with the convex portion attempts to flow to the heat transfer plate side of the counterpart, the first fluid is blocked by the convex portion of the counterpart heat transfer plate. Is guided (branched) to the concaves of the concavo-convex group located in, and flows along the concaves. Then, the first fluid flowing along the concave portion collides with a convex portion adjacent to the concave portion.
そうすると、ここでも第一流体は、相手方の伝熱プレート側に流れようとするが、該相手方の伝熱プレートの凸部によって阻止され、結果的に衝突した凸部を含む凹凸群の両側にある凹凸群の凹部に誘導(分岐)される。すなわち、元の凹凸群に含まれる凹部に誘導(合流)される。これにより、第一流体は、凸部との衝突で分岐と合流とを繰り返して、下流側に流れる。この流れ(凸部との衝突で分岐と合流とを繰り返す流れ)は、第二流体も同様である。
Then, the first fluid also tends to flow to the heat transfer plate side of the counterpart, but is blocked by the protrusions of the counterpart heat transfer plate, and consequently the first fluid is on both sides of the group of protrusions and protrusions including the hitting protrusions. It is guided (branched) to the concave portions of the concave / convex group. That is, it is guided (merged) to the concave portions included in the original concave-convex group. As a result, the first fluid repeats branching and merging by collision with the convex portion, and flows to the downstream side. This flow (the flow in which branching and merging are repeated by collision with the convex portion) is the same for the second fluid.
このように、第一流路に第一流体が凹部を流れる機会があり、第二流路に第二流体が凹部を流れる機会があるため、それぞれの流路で流通抵抗が高くなることが抑制される。また、第一流路内で第一流体が分岐と合流を繰り返し、第二流路内で第二流体が分岐と合流を繰り返すことで、第一流体及び第二流体のそれぞれの流れに乱れが生じる結果、第一流体と第二流体との熱交換性能(伝熱性能)が高くなる。
As described above, the first fluid has an opportunity to flow through the concave portion in the first flow channel, and the second fluid has an opportunity to flow through the concave portion in the second flow channel, so that the flow resistance in each flow channel is suppressed from increasing. You. In addition, the first fluid repeats branching and merging in the first flow path, and the second fluid repeats branching and merging in the second flow path, whereby turbulence occurs in the respective flows of the first fluid and the second fluid. As a result, the heat exchange performance (heat transfer performance) between the first fluid and the second fluid increases.
本発明の他態様として、伝熱プレートの伝熱領域にある複数の凹凸群の凸部のそれぞれは、第一方向で隣り合う相手方の伝熱プレートの伝熱領域にある複数の凹凸群のうちの一つの凹凸群の一つの凸部と交差衝合してもよい。
As another aspect of the present invention, each of the protrusions of the plurality of unevenness groups in the heat transfer area of the heat transfer plate is one of the plurality of unevenness groups in the heat transfer area of the partner heat transfer plate adjacent in the first direction. May be cross-impacted with one convex part of one concave-convex group.
このようにすれば、凸部に衝突した第一流体が該凸部を含む凹凸群のある伝熱プレートに対して相手方の伝熱プレートの凹凸群の凹部に誘導され、凸部に衝突した第二流体が該凸部を含む凹凸群のある伝熱プレートに対して相手方の伝熱プレートの凹凸群の凹部に誘導される。
With this configuration, the first fluid that collides with the convex portion is guided to the concave portion of the concave / convex group of the other heat transfer plate with respect to the heat transfer plate having the concave / convex group including the convex portion, and collides with the convex portion. The two fluids are guided to the concave portion of the concavity and convexity group of the other heat transfer plate with respect to the heat transfer plate having the concavo-convex group including the convex portion.
具体的に説明すると、共通の伝熱領域内にある複数の凹凸群は、中心線に対して傾斜する方向(仮想線の延びる傾斜する方向)に対して直交方向に並ぶため、異なる凹凸群の凸部は、凹凸群の延びる方向(仮想線の延びる傾斜する方向)に対して直交する方向の異なる位置に配置される。すなわち、異なる凹凸群の凸部は、仮想線の延びる方向と直交する方向に間隔をあけて配置される。これに伴い、凹凸群に含まれる凸部のそれぞれには、相手方の伝熱プレートの異なる凹凸群の一つの凸部が交差する。これに伴い、隣り合う伝熱プレートの凸部同士は交差衝合し、隣り合う伝熱プレートの凹部同士は間隔をあけた状態で交差する。
Specifically, the plurality of uneven groups in the common heat transfer region are arranged in a direction orthogonal to the direction inclined with respect to the center line (the direction in which the virtual line extends). The projections are arranged at different positions in a direction orthogonal to the direction in which the group of irregularities extend (the direction in which the imaginary line extends). That is, the protrusions of the different concavo-convex groups are arranged at intervals in a direction orthogonal to the direction in which the virtual line extends. Accordingly, each of the protrusions included in the concavo-convex group intersects with one of the concavo-convex groups of a different heat transfer plate of the partner. Accordingly, the convex portions of the adjacent heat transfer plates cross each other, and the concave portions of the adjacent heat transfer plates cross each other at an interval.
これにより、凹部に沿って流れる第一流体が凸部に衝突することで流れを変えようとすると、相手方の伝熱プレートの凹部(第一流体が衝突する凸部と横並びの凹部と交差する凹部)に入り込み、該相手方の伝熱プレートの凹部に沿って流れる。そして、相手方の伝熱プレートの凹部に沿って流れる第一流体が該相手方の伝熱プレート凸部に衝突することで流れを変えようとすると、元の伝熱プレートの凹部(第一流体が衝突する凸部と横並びの凹部と交差する凹部)に入り込み、該元の伝熱プレートの凹部に沿って流れる。このように、第一流体は、隣り合う伝熱プレートの凹部を順々に乗り移りつつ下流側に流れる。
Accordingly, when the first fluid flowing along the concave portion collides with the convex portion to change the flow, the concave portion of the counterpart heat transfer plate (the concave portion intersecting with the concave portion arranged side by side with the convex portion against which the first fluid collides). ) And flows along the concave portion of the other heat transfer plate. Then, when the first fluid flowing along the concave portion of the counterpart heat transfer plate attempts to change the flow by colliding with the convex portion of the counterpart heat transfer plate, the concave portion of the original heat transfer plate (the first fluid collides). (A concave portion intersecting with a concave portion that is arranged side by side with the convex portion), and flows along the concave portion of the original heat transfer plate. In this way, the first fluid flows downstream while sequentially moving over the concave portions of the adjacent heat transfer plates.
そして、上記構成のプレート式熱交換器において、凹凸群(凸部及び凹部)は、第二方向に延びる(第一流体の流れ方向に延びる)中心線に対して傾斜した仮想線に沿っている(凹部が傾斜する方向に長手をなす)ため、上述の如く、第一流体が隣り合う伝熱プレートの凹部を順々に乗り移りつつ下流側に流れることで、第一流体の流れが螺旋流になる。この流れ(螺旋流)は、第二流体も同様である。
In the plate heat exchanger having the above-described configuration, the concavo-convex group (the convex portion and the concave portion) is along a virtual line that is inclined with respect to a center line extending in the second direction (extending in the flow direction of the first fluid). As described above, the first fluid flows downstream while sequentially passing through the recesses of the adjacent heat transfer plates, so that the flow of the first fluid becomes a spiral flow. Become. This flow (spiral flow) is the same for the second fluid.
このように、第一流路に第一流体が凹部を流れる機会があり、第二流路に第二流体が凹部を流れる機会があるため、それぞれの流路で流通抵抗が高くなることが抑制される。また、第一流路内で第一流体が螺旋流を作り、第二流路内で第二流体が螺旋流を作ることで、第一流体及び第二流体のそれぞれの流れにさらなる乱れが生じる結果、伝熱プレート(伝熱領域)を介しての第一流体と第二流体との熱交換性能(伝熱性能)が高くなる。
As described above, the first fluid has an opportunity to flow through the concave portion in the first flow channel, and the second fluid has an opportunity to flow through the concave portion in the second flow channel, so that the flow resistance in each flow channel is suppressed from increasing. You. In addition, the first fluid creates a helical flow in the first flow path, and the second fluid creates a helical flow in the second flow path, resulting in further turbulence in the respective flows of the first fluid and the second fluid. The heat exchange performance (heat transfer performance) between the first fluid and the second fluid via the heat transfer plate (heat transfer region) is improved.
これらの場合、凹凸群の配置の基準となる仮想線は、第二方向に延びる中心線に対して45°未満の角度で傾斜していることが好ましい。このようにすれば、凹凸群に含まれる凹部の長手に延びる方向の成分に、第一流体及び第二流体の流れ方向と直交する成分より、流れ方向の成分の方が多く含まれる。これにより、第一流路で第一流体が流れ易く、第二流路で第二流体が流れ易くなる。すなわち、第一流路及び第二流路のそれぞれにおいて、流通抵抗が高くなることが抑制される。
In these cases, it is preferable that the imaginary line serving as a reference for the arrangement of the unevenness group is inclined at an angle of less than 45 ° with respect to the center line extending in the second direction. With this configuration, the components in the direction extending in the longitudinal direction of the concave portion included in the concave and convex group include more components in the flow direction than components perpendicular to the flow direction of the first fluid and the second fluid. Thereby, the first fluid easily flows in the first flow path, and the second fluid easily flows in the second flow path. That is, in each of the first flow path and the second flow path, an increase in flow resistance is suppressed.
本発明に係るプレート式熱交換器によれば、流体の流通抵抗の増加を抑えつつ、高い伝熱性能を得ることができるという優れた効果を奏し得る。
According to the plate heat exchanger of the present invention, an excellent effect that high heat transfer performance can be obtained while suppressing an increase in fluid flow resistance can be achieved.
以下、本発明の第一実施形態に係るプレート式熱交換器について、添付図面を参照しつつ説明する。
Hereinafter, the plate heat exchanger according to the first embodiment of the present invention will be described with reference to the accompanying drawings.
プレート式熱交換器は、図1に示す如く、第一流体Aと第二流体Bとを熱交換させるもので、第一方向に重ね合わされた複数の伝熱プレート2,3を備える。
As shown in FIG. 1, the plate-type heat exchanger exchanges heat between the first fluid A and the second fluid B, and includes a plurality of heat transfer plates 2 and 3 stacked in the first direction.
なお、以下の説明において、第一方向をX軸方向とし、第一方向と直交する第二方向をZ軸方向とし、第一方向及び第二方向のそれぞれと直交する第三方向をY軸方向とする。これに伴い、各図には、各方向に対応した直交三軸(X軸方向と対応するX軸、Y軸方向と対応するY軸、及びZ軸方向と対応するZ軸)を補助的に図示している。
In the following description, a first direction is defined as an X-axis direction, a second direction orthogonal to the first direction is defined as a Z-axis direction, and a third direction orthogonal to each of the first direction and the second direction is defined as a Y-axis direction. And Accordingly, in each drawing, three orthogonal axes (X-axis corresponding to the X-axis direction, Y-axis corresponding to the Y-axis direction, and Z-axis corresponding to the Z-axis direction) are supplementarily illustrated in each drawing. It is illustrated.
本実施形態に係るプレート式熱交換器1において、図2に示す如く、複数の伝熱プレート2,3のそれぞれを境にして、第一流体AをZ軸方向に流通させる第一流路Raと、第二流体BをZ軸方向に流通させる第二流路Rbとが、X軸方向で交互に形成されている。
In the plate heat exchanger 1 according to the present embodiment, as shown in FIG. 2, a first flow path Ra that allows the first fluid A to flow in the Z-axis direction with each of the plurality of heat transfer plates 2 and 3 as a boundary. And a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction.
複数の伝熱プレート2,3のそれぞれは、図3乃至図6に示す如く、X軸方向の両面S1,S2に伝熱領域200a,200b,300a,300bを含む。より具体的に説明すると、複数の伝熱プレート2,3のそれぞれは、X軸方向に第一面S1と該第一面S1の反対側の第二面S2を有する伝熱部20,30と、伝熱部20,30の外周全周から延出した環状部21,31とを備える。
As shown in FIGS. 3 to 6, each of the plurality of heat transfer plates 2 and 3 includes heat transfer regions 200a, 200b, 300a and 300b on both surfaces S1 and S2 in the X-axis direction. More specifically, each of the plurality of heat transfer plates 2 and 3 includes a heat transfer unit 20 or 30 having a first surface S1 and a second surface S2 opposite to the first surface S1 in the X-axis direction. , And annular portions 21 and 31 extending from the entire outer periphery of the heat transfer units 20 and 30.
伝熱部20,30の第一面S1及び第二面S2は、第一流体Aと第二流体Bとの熱交換に寄与する伝熱領域200a,200b,300a,300bを含む。具体的に説明すると、伝熱部20,30は、X軸方向から見て四角形状に形成される。本実施形態において、伝熱部20,30は、X軸方向から見てZ軸方向に長手をなした長方形状に形成される。そして、伝熱部20,30は、Z軸方向に延びる中心線(以下、縦中心線という)CL1と、Y軸方向に延びる中心線(以下、横中心線という)CL2との交点を含む主伝熱部20a,30aと、Z軸方向の主伝熱部20a,30aの両側にある一対の端部20b,30bとを含む。
第一 The first surface S1 and the second surface S2 of the heat transfer units 20, 30 include heat transfer regions 200a, 200b, 300a, 300b that contribute to heat exchange between the first fluid A and the second fluid B. More specifically, the heat transfer units 20 and 30 are formed in a square shape when viewed from the X-axis direction. In the present embodiment, the heat transfer units 20 and 30 are formed in a rectangular shape that is elongated in the Z-axis direction when viewed from the X-axis direction. The heat transfer units 20 and 30 mainly include an intersection of a center line (hereinafter, referred to as a vertical center line) CL1 extending in the Z-axis direction and a center line (hereinafter, referred to as horizontal center line) CL2 extending in the Y-axis direction. Heat transfer portions 20a, 30a and a pair of ends 20b, 30b on both sides of the main heat transfer portions 20a, 30a in the Z-axis direction are included.
主伝熱部20a,30aは、X軸方向から見て四角形状に形成される。本実施形態において、主伝熱部20a,30aは、Z軸方向に長手をなした長方形状に形成される。一対の端部20b,30bは、主伝熱部20a,30aと連続し、伝熱部20,30全体をX軸方向から見て四角形状(長方形状)に形成している。
The main heat transfer sections 20a and 30a are formed in a square shape when viewed from the X-axis direction. In the present embodiment, the main heat transfer sections 20a and 30a are formed in a rectangular shape having a length in the Z-axis direction. The pair of ends 20b and 30b are continuous with the main heat transfer sections 20a and 30a, and form the entire heat transfer sections 20 and 30 in a square shape (rectangular shape) when viewed from the X-axis direction.
伝熱部20,30のうちの主伝熱部20a,30aの第一面S1及び第二面S2は、伝熱領域200a,200b,300a,300bとされる。第一面S1及び第二面S2の伝熱領域200a,200b,300a,300bのそれぞれは、縦中心線CL1に対して傾斜する方向(以下、傾斜方向という)に長手を有する凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bを含み且つ該凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bが傾斜方向に延びる仮想線VLに沿って交互に並ぶ凹凸群201,202,301,302であって、傾斜方向と直交する方向に並ぶ複数の凹凸群201,202,301,302を有する。
第一 The first surface S1 and the second surface S2 of the main heat transfer portions 20a, 30a of the heat transfer portions 20, 30 are heat transfer regions 200a, 200b, 300a, 300b. Each of the heat transfer regions 200a, 200b, 300a, 300b of the first surface S1 and the second surface S2 has a convex portion 201a, 202a having a length in a direction inclined with respect to the vertical center line CL1 (hereinafter referred to as an inclined direction). , 301a, 302a and concave portions 201b, 202b, 301b, 302b, and the convex portions 201a, 202a, 301a, 302a and concave portions 201b, 202b, 301b, 302b are alternately arranged along an imaginary line VL extending in the inclined direction. Groups 201, 202, 301, and 302 include a plurality of uneven groups 201, 202, 301, and 302 arranged in a direction orthogonal to the tilt direction.
複数の凹凸群201,202,301,302のそれぞれの凸部201a,202a,301a,302aは、傾斜方向と直交する方向で隣り合う凹凸群201,202,301,302の凹部201b,202b,301b,302bと横並びに配置される。これに対し、複数の凹凸群201,202,301,302のそれぞれの凹部201b,202b,301b,302bは、傾斜方向と直交する方向で隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aと横並びに配置される。
Each of the convex portions 201a, 202a, 301a, 302a of the plurality of concave / convex groups 201, 202, 301, 302 is formed with concave portions 201b, 202b, 301b of the concave / convex groups 201, 202, 301, 302 adjacent in the direction orthogonal to the inclination direction. , 302b. On the other hand, each of the concave portions 201b, 202b, 301b, and 302b of the plurality of concave / convex groups 201, 202, 301, and 302 has a convex portion 201a of the concave / convex groups 201, 202, 301, and 302 that are adjacent to each other in a direction orthogonal to the inclination direction. , 202a, 301a, and 302a.
これにより、複数列の凹凸群201,202,301,302の凸部201a,202a,301a,302aは、伝熱領域200a,200b,300a,300b内で千鳥状に配置され、複数列の凹凸群201,202,301,302の凹部201b,202b,301b,302bは、伝熱領域200a,200b,300a,300b内で凸部201a,202a,301a,302aの間に配置され、該伝熱領域200a,200b,300a,300b内で千鳥状に配置されている。
As a result, the convex portions 201a, 202a, 301a, and 302a of the plurality of rows of unevenness groups 201, 202, 301, and 302 are arranged in a staggered manner within the heat transfer regions 200a, 200b, 300a, and 300b. The concave portions 201b, 202b, 301b, and 302b of 201, 202, 301, and 302 are arranged between the convex portions 201a, 202a, 301a, and 302a in the heat transfer regions 200a, 200b, 300a, and 300b. , 200b, 300a, and 300b in a zigzag pattern.
より正確に説明すると、本実施形態において、複数の凹凸群201,202,301,302のそれぞれの凸部201a,202a,301a,302aは、隣り合う凹凸群201,202,301,302の凹部201b,202b,301b,302bとY軸方向で横並びに配置される。これに対し、複数の凹凸群201,202,301,302のそれぞれの凹部201b,202b,301b,302bは、隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aとY軸方向で横並びに配置される。
More specifically, in the present embodiment, each of the convex portions 201a, 202a, 301a, and 302a of the plurality of concave and convex groups 201, 202, 301, and 302 is formed with the concave portion 201b of the adjacent concave and convex groups 201, 202, 301, and 302. , 202b, 301b, 302b in the Y-axis direction. On the other hand, each of the concave portions 201b, 202b, 301b, and 302b of the plurality of concave / convex groups 201, 202, 301, and 302 is different from the convex portions 201a, 202a, 301a, and 302a of the adjacent concave / convex groups 201, 202, 301, and 302. They are arranged side by side in the Y-axis direction.
これにより、異なる凹凸群201,202,301,302の凸部201a,202a,301a,302aと凹部201b,202b,301b,302bとがY軸方向に交互に配置された複数の群(行)が、Z軸方向に複数並んで形成されている。
Thereby, a plurality of groups (rows) in which the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b of the different concavo- convex groups 201, 202, 301, 302 are alternately arranged in the Y-axis direction are formed. , In the Z-axis direction.
傾斜方向は、縦中心線CL1に対して45°未満の角度で傾斜する方向に設定される。これに伴い、縦中心線CL1に対する仮想線VLの傾斜角度θ1は、45°未満に設定される。すなわち、横中心線CL2に対する仮想線VLの傾斜角度θ2は、45°よりも大きく設定される。本実施形態において、縦中心線CL1に対する仮想線VLの傾斜角度θ1は、30°乃至40°に設定される。本実施形態において、横中心線CL2に対する仮想線VLの傾斜角度θ2は、60°乃至70°に設定される。
The inclination direction is set to a direction inclined at an angle of less than 45 ° with respect to the vertical center line CL1. Accordingly, the inclination angle θ1 of the virtual line VL with respect to the vertical center line CL1 is set to less than 45 °. That is, the inclination angle θ2 of the virtual line VL with respect to the horizontal center line CL2 is set to be larger than 45 °. In the present embodiment, the inclination angle θ1 of the virtual line VL with respect to the vertical center line CL1 is set to 30 ° to 40 °. In the present embodiment, the inclination angle θ2 of the virtual line VL with respect to the horizontal center line CL2 is set to 60 ° to 70 °.
これにより、複数の伝熱プレート2,3は、伝熱部20,30(伝熱領域200a,200b,300a,300b)を対向させた状態で重ね合わされることで、隣り合う伝熱プレート2,3の互いの凹凸群201,202,301,302の凸部201a,202a,301a,302a同士を交差衝合させるようになっている。
Thus, the plurality of heat transfer plates 2 and 3 are stacked with the heat transfer portions 20 and 30 ( heat transfer regions 200a, 200b, 300a and 300b) facing each other, so that the adjacent heat transfer plates 2 and 3 are stacked. The projections 201a, 202a, 301a, and 302a of the three concavo- convex groups 201, 202, 301, and 302 cross each other.
ここで、各凹凸群201,202,301,302に含まれる凸部201a,202a,301a,302aの長手方向の長さ及び凹部201b,202b,301b,302bの長手方向の長さ(仮想線VLの延びる方向に並ぶ凸部201a,202a,301a,302a同士の間隔)は、一つの凸部201a,202a,301a,302aが隣り合う(相手方の)伝熱プレート2,3の伝熱領域200a,200b,300a,300bに含まれる二つ(二列)以上の凹凸群201,202,301,302に跨る(二つ以上の凹凸群201,202,301,302の凸部201a,202a,301a,302aに対して交差衝合する)ように設定される。
Here, the longitudinal lengths of the convex portions 201a, 202a, 301a, 302a and the longitudinal lengths of the concave portions 201b, 202b, 301b, 302b included in each of the concavo- convex groups 201, 202, 301, 302 (virtual line VL (The intervals between the convex portions 201a, 202a, 301a, and 302a) arranged in the extending direction of the heat transfer plates 200, 300a, 202a, 301a, and 302a. The projections 201a, 202a, 301a, and 200b of the two or more concavo- convex groups 201, 202, 301, and 302 include two (two rows) or more concavities and convexities 201, 202, 301, and 302 included in 200b, 300a, and 300b. 302a).
凸部201a,202a,301a,302a(凸部201a,202a,301a,302aの頂上)と凹部201b,202b,301b,302b(凹部201b,202b,301b,302bの底)とは、X軸方向における位置を異にする。そのため、凸部201a,202a,301a,302aと凹部201b,202b,301b,302bとの間には、凸部201a,202a,301a,302aの頂上から凹部201b,202b,301b,302bの底(或いは、凹部201b,202b,301b,302bの底から凸部201a,202a,301a,302aの頂上)に繋がる中間領域(採番しない)が形成されている。
The projections 201a, 202a, 301a, 302a (tops of the projections 201a, 202a, 301a, 302a) and the recesses 201b, 202b, 301b, 302b (bottoms of the recesses 201b, 202b, 301b, 302b) in the X-axis direction Different position. Therefore, between the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b, the bottoms of the concave portions 201b, 202b, 301b, 302b (from the top of the convex portions 201a, 202a, 301a, 302a). An intermediate region (not numbered) is formed from the bottom of the recesses 201b, 202b, 301b, 302b to the top of the protrusions 201a, 202a, 301a, 302a).
この中間領域は、凹凸群201,202,301,302にある凸部201a,202a,301a,302aと凹部201b,202b,301b,302bとの間や、隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aと凹部201b,202b,301b,302bとの間に配置される。
This intermediate region is located between the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b in the concave / convex groups 201, 202, 301, 302, and the adjacent concave / convex groups 201, 202, 301, 302. Are disposed between the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b.
中間領域は、凸部201a,202a,301a,302aの頂上と凹部201b,202b,301b,302bの底との途中位置にZ軸方向及びY軸方向に広がる中段部位が含まれてもよいが、本実施形態においては、凸部201a,202a,301a,302aの頂上から凹部201b,202b,301b,302bの底に向けて(或いは、凹部201b,202b,301b,302bの底から凸部201a,202a,301a,302aの頂上に向けて)連続的に傾斜している。
The intermediate region may include a middle portion that extends in the Z-axis direction and the Y-axis direction at an intermediate position between the tops of the protrusions 201a, 202a, 301a, and 302a and the bottoms of the recesses 201b, 202b, 301b, and 302b. In the present embodiment, from the top of the projections 201a, 202a, 301a, 302a to the bottom of the depressions 201b, 202b, 301b, 302b (or from the bottom of the depressions 201b, 202b, 301b, 302b, the projections 201a, 202a). , 301a, 302a).
一対の端部20b,30bのそれぞれには、X軸方向に貫通した一対の貫通孔203,204,303,304が設けられている。一対の端部20b,30bのそれぞれにおいて、一対の貫通孔203,204,303,304は、Y軸方向に間隔をあけて配置されている。本実施形態において、一対の貫通孔203,204,303,304は、縦中心線CL1を挟んで配置されている。
A pair of through holes 203, 204, 303, 304 penetrating in the X-axis direction are provided in each of the pair of ends 20b, 30b. In each of the pair of ends 20b and 30b, the pair of through holes 203, 204, 303 and 304 are arranged at intervals in the Y-axis direction. In the present embodiment, the pair of through holes 203, 204, 303, 304 are arranged with the vertical center line CL1 interposed therebetween.
本実施形態において、複数の伝熱プレート2,3のそれぞれは、金属プレートをプレス成型したものである。これに伴い、各伝熱プレート2,3において、第一面S1の伝熱領域200a,300aの凸部201a,301aと第二面S2の伝熱領域200b,300bの凹部202b,302bとが表裏の関係にあり、第一面S1の伝熱領域200a,300aの凹部201b,301bと第二面S2の伝熱領域200b,300bの凸部202a,302aとが表裏の関係にある。すなわち、伝熱プレート2,3の第一面S1の伝熱領域200a,300aにある凹凸群201,301と、伝熱プレート2,3の第二面S2の伝熱領域200b,300bにある凹凸群202,302とは、対応する位置で凹凸関係が反対で形成されている。
In the present embodiment, each of the plurality of heat transfer plates 2 and 3 is formed by press-molding a metal plate. Accordingly, in each of the heat transfer plates 2 and 3, the convex portions 201a and 301a of the heat transfer regions 200a and 300a on the first surface S1 and the concave portions 202b and 302b of the heat transfer regions 200b and 300b on the second surface S2 are front and back. The concave portions 201b and 301b of the heat transfer regions 200a and 300a on the first surface S1 and the convex portions 202a and 302a of the heat transfer regions 200b and 300b on the second surface S2 have a front and back relationship. That is, the unevenness groups 201 and 301 on the heat transfer areas 200a and 300a on the first surface S1 of the heat transfer plates 2 and 3, and the unevenness on the heat transfer areas 200b and 300b on the second surface S2 of the heat transfer plates 2 and 3. The groups 202 and 302 are formed in opposite positions at the corresponding positions.
本実施形態に係るプレート式熱交換器1は、二種類の伝熱プレート2,3を含む。この二種類の伝熱プレート2,3は、環状部21,31の伝熱部20,30からの延出方向及び凹凸群201,202,301,302の凹凸の位置を異にする以外は、同一構成である。
プ レ ー ト The plate heat exchanger 1 according to the present embodiment includes two types of heat transfer plates 2 and 3. The two types of heat transfer plates 2 and 3 are different from each other in that the directions in which the annular portions 21 and 31 extend from the heat transfer portions 20 and 30 and the positions of the unevenness of the unevenness groups 201, 202, 301, and 302 are different. They have the same configuration.
具体的に説明すると、二種類の伝熱プレート2,3は、主伝熱部20a,30a及び一対の端部20b,30bを含む伝熱部20,30と、環状部21,31とを備え、主伝熱部20a,30aの第一面S1及び第二面S2の伝熱領域200a,200b,300a,300bが複数の凹凸群201,202,301,302を有する点で共通している。
More specifically, the two types of heat transfer plates 2 and 3 include heat transfer portions 20 and 30 including main heat transfer portions 20a and 30a and a pair of ends 20b and 30b, and annular portions 21 and 31. The heat transfer regions 200a, 200b, 300a, 300b of the first surface S1 and the second surface S2 of the main heat transfer portions 20a, 30a are common in having a plurality of uneven groups 201, 202, 301, 302.
二種類の伝熱プレート2,3のうちの一方の伝熱プレート(以下、第一伝熱プレートという)2において、環状部21は、伝熱部20の第二面S2側に延出し、二種類の伝熱プレート2,3のうちの他方の伝熱プレート(以下、第二伝熱プレートという)3において、環状部31は、伝熱部30の第一面S1側に延出している。
In one of the two types of heat transfer plates 2 and 3 (hereinafter, referred to as a first heat transfer plate) 2, the annular portion 21 extends to the second surface S <b> 2 side of the heat transfer portion 20, In the other heat transfer plate (hereinafter, referred to as a second heat transfer plate) 3 of the types of heat transfer plates 2 and 3, the annular portion 31 extends to the first surface S1 side of the heat transfer portion 30.
第一伝熱プレート2の伝熱部20(主伝熱部20a)の第一面S1及び第二面S2のそれぞれの伝熱領域200a,200bにおいて、複数の凹凸群201,202は、X軸方向から見てY軸方向における伝熱部20の一端側から他端側に向けて先下りに傾斜している。これに対し、第二伝熱プレート3の伝熱部30(主伝熱部30a)の第一面S1及び第二面S2のそれぞれの伝熱領域300a,300bにおいて、複数の凹凸群301,302は、X軸方向から見てY軸方向における伝熱部30の他端側から一端側に向けて先下りに傾斜している。
In each of the heat transfer areas 200a and 200b of the first surface S1 and the second surface S2 of the heat transfer portion 20 (main heat transfer portion 20a) of the first heat transfer plate 2, the plurality of uneven groups 201 and 202 are formed along the X-axis. As seen from the direction, the heat transfer portion 20 is inclined downward from one end to the other end in the Y-axis direction. On the other hand, in the heat transfer regions 300a and 300b of the first surface S1 and the second surface S2 of the heat transfer portion 30 (main heat transfer portion 30a) of the second heat transfer plate 3, a plurality of unevenness groups 301 and 302 are provided. Is inclined downward from the other end to the one end of the heat transfer section 30 in the Y-axis direction when viewed from the X-axis direction.
本実施形態において、第二伝熱プレート3の複数の凹凸群301,302は、X軸方向における同一側から見て、第一伝熱プレート2の複数の凹凸群201,202を縦中心線CL1で反転させた上でY軸方向に所定ピッチ(本実施形態においては1ピッチ)位置ずれさせた配置になっている。
In the present embodiment, the plurality of uneven groups 301 and 302 of the second heat transfer plate 3 are arranged such that the plurality of uneven groups 201 and 202 of the first heat transfer plate 2 are aligned with the vertical center line CL1 when viewed from the same side in the X-axis direction. And is shifted by a predetermined pitch (one pitch in this embodiment) in the Y-axis direction.
そして、第一伝熱プレート2及び第二伝熱プレート3は、図2に示す如く、X軸方向で交互に配置され、隣り合う第一伝熱プレート2及び第二伝熱プレート3の環状部21,31同士が嵌合される(図1参照)。この状態で、第一伝熱プレート2の伝熱部20の第一面S1は、第二伝熱プレート3の伝熱部30の第一面S1と対向し、第一伝熱プレート2の伝熱部20の第二面S2は、第二伝熱プレート3の伝熱部30の第二面S2と対向する。
As shown in FIG. 2, the first heat transfer plate 2 and the second heat transfer plate 3 are arranged alternately in the X-axis direction, and the annular portions of the adjacent first heat transfer plate 2 and second heat transfer plate 3 are arranged. 21 and 31 are fitted together (see FIG. 1). In this state, the first surface S1 of the heat transfer portion 20 of the first heat transfer plate 2 faces the first surface S1 of the heat transfer portion 30 of the second heat transfer plate 3, and The second surface S2 of the heat section 20 faces the second surface S2 of the heat transfer section 30 of the second heat transfer plate 3.
この状態において、第一伝熱プレート2の伝熱部20の第一面S1(伝熱領域200a)にある複数の凹凸群201のそれぞれの凸部201aに対し、第二伝熱プレート3の伝熱部30の第一面S1(伝熱領域300a)に含まれる二つ(二列)の凹凸群301が交差し、その凹凸群301の凸部301aが交差衝合する。すなわち、第一伝熱プレート2の伝熱部20の第一面S1(伝熱領域200a)にある複数の凹凸群201のそれぞれの凸部201aに対し、第二伝熱プレート3の伝熱部30の第一面S1(伝熱領域300a)にある二つの凸部301aが交差衝合する(図7参照)。
In this state, the transfer of the second heat transfer plate 3 to the respective protrusions 201a of the plurality of uneven groups 201 on the first surface S1 (heat transfer region 200a) of the heat transfer portion 20 of the first heat transfer plate 2 is performed. Two (two rows) of uneven groups 301 included in the first surface S1 (heat transfer region 300a) of the heat unit 30 intersect, and the convex portions 301a of the uneven group 301 intersect. That is, the heat transfer portion of the second heat transfer plate 3 is provided for each of the protrusions 201a of the plurality of uneven groups 201 on the first surface S1 (heat transfer region 200a) of the heat transfer portion 20 of the first heat transfer plate 2. The two protrusions 301a on the first surface S1 (the heat transfer region 300a) of the cross 30 abut (see FIG. 7).
また、第一伝熱プレート2の伝熱部20の第二面S2(伝熱領域200b)にある複数の凹凸群202のそれぞれの凸部202aに対し、第二伝熱プレート3の伝熱部30の第二面S2(伝熱領域300b)に含まれる二つ(二列)の凹凸群302が交差し、その凹凸群302の凸部302aが交差衝合する。すなわち、第一伝熱プレート2の伝熱部20の第二面S2(伝熱領域200b)にある複数の凹凸群202のそれぞれの凸部202aに対し、第二伝熱プレート3の伝熱部30の第二面S2(伝熱領域300b)にある二つの凸部302aが交差衝合する。
Further, the heat transfer portion of the second heat transfer plate 3 is provided to each of the protrusions 202a of the plurality of uneven groups 202 on the second surface S2 (heat transfer region 200b) of the heat transfer portion 20 of the first heat transfer plate 2. The two (two rows) irregular groups 302 included in the second surface S2 (the heat transfer region 300b) of the 30 intersect, and the convex portions 302a of the irregular group 302 intersect. That is, the heat transfer portion of the second heat transfer plate 3 is moved to the respective protrusions 202a of the plurality of irregularities 202 on the second surface S2 (heat transfer region 200b) of the heat transfer portion 20 of the first heat transfer plate 2. The two convex portions 302a on the second surface S2 (the heat transfer region 300b) of 30 cross-impact.
そして、X軸方向に重ね合わされた複数の伝熱プレート2,3(第一伝熱プレート2、第二伝熱プレート3)の環状部21,31間や、貫通孔203,204,303,304の周囲等が適宜液密にシールされる。本実施形態において、X軸方向に重ね合わされた複数の伝熱プレート2,3は、ロウ付けにより一体にされ、該ロウ付けによって環状部21,31間や貫通孔203,204,303,304の周囲等がシールされる。
Then, between the annular portions 21 and 31 of the plurality of heat transfer plates 2 and 3 (first heat transfer plate 2 and second heat transfer plate 3) superimposed in the X-axis direction, and through holes 203, 204, 303 and 304. Is sealed in a liquid-tight manner as appropriate. In the present embodiment, the plurality of heat transfer plates 2 and 3 superimposed in the X-axis direction are integrated by brazing, and the brazing is performed between the annular portions 21 and 31 and the through holes 203, 204, 303, and 304. The surroundings are sealed.
これにより、複数の伝熱プレート2,3の伝熱部20,30(第一伝熱プレート2の伝熱部20、第二伝熱プレート3の伝熱部30)を境にして、第一流体AをZ軸方向に流通させる第一流路Raと、第二流体BをZ軸方向に流通させる第二流路RbとがX軸方向で交互に形成される。すなわち、第一伝熱プレート2の伝熱部20の第一面S1に含まれる伝熱領域200aの凹部201b及び第二伝熱プレート3の伝熱部30の第一面S1に含まれる伝熱領域300aの凹部301bによって形成される空間が、第一流路Raを構成するとともに、第一伝熱プレート2の伝熱部20の第二面S2に含まれる伝熱領域200bの凹部202b及び第二伝熱プレート3の伝熱部30の第二面S2に含まれる伝熱領域300bの凹部302bによって形成される空間が、第二流路Rbを構成する。
As a result, the first and second heat transfer plates 2, 3 (the heat transfer unit 20 of the first heat transfer plate 2 and the heat transfer unit 30 of the second heat transfer plate 3) are bordered by the first heat transfer unit 20. A first flow path Ra for flowing the fluid A in the Z-axis direction and a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction. That is, the heat transfer included in the concave portion 201b of the heat transfer area 200a included in the first surface S1 of the heat transfer portion 20 of the first heat transfer plate 2 and the first surface S1 of the heat transfer portion 30 of the second heat transfer plate 3 The space formed by the concave portion 301b of the region 300a constitutes the first flow path Ra, and the concave portion 202b of the heat transfer region 200b and the second portion Sb included in the second surface S2 of the heat transfer portion 20 of the first heat transfer plate 2. The space formed by the concave portion 302b of the heat transfer region 300b included in the second surface S2 of the heat transfer portion 30 of the heat transfer plate 3 forms a second flow path Rb.
また、複数の伝熱プレート2,3(第一伝熱プレート2、第二伝熱プレート3)の対応する貫通孔203,204,303,304同士がX軸方向に連なり、第一流路Raのみに連通した一対の第一連通路Ra1,Ra2であって、第一流路Raに対して第一流体Aを流出入させる一対の第一連通路Ra1,Ra2が形成されるとともに、第二流路Rbのみに連通した一対の第二連通路Rb1,Rb2であって、第二流路Rbに対して第二流体Bを流出入させる一対の第二連通路Rb1,Rb2が形成される。
Further, the corresponding through holes 203, 204, 303, 304 of the plurality of heat transfer plates 2, 3 (first heat transfer plate 2, second heat transfer plate 3) are connected in the X-axis direction, and only the first flow path Ra is provided. And a pair of first series passages Ra1 and Ra2 that allow the first fluid A to flow into and out of the first flow passage Ra. A pair of second communication passages Rb1 and Rb2, which are a pair of second communication passages Rb1 and Rb2 that communicate only with Rb and that allow the second fluid B to flow into and out of the second flow passage Rb, are formed.
本実施形態に係るプレート式熱交換器1は、以上の通りであり、一方の第一連通路Ra1に第一流体Aを供給するとともに、一方の第二連通路Rb2に第二流体Bを供給すると、第一流体Aは、一方の第一連通路Ra1から複数の第一流路Raのそれぞれに流入し、第二流体Bは、一方の第二連通路Rb1から複数の第二流路Rbのそれぞれに流入する。
The plate heat exchanger 1 according to the present embodiment is as described above, supplies the first fluid A to one of the first series passages Ra1, and supplies the second fluid B to one of the second communication passages Rb2. Then, the first fluid A flows into each of the plurality of first flow paths Ra from one of the first series passages Ra1, and the second fluid B flows from the one of the second communication paths Rb1 to the plurality of second flow paths Rb. Flow into each.
そうすると、図7及び図8に示す如く、第一流体Aは、第一流路Ra内でZ軸方向に流通し、第二流体Bは、第二流路Rb内でZ軸方向に流通する。すなわち、第一流体Aは、第一流路Ra内において、Z軸方向における伝熱領域200a,300aの一端側から他端側に向けて流通し、第二流体Bは、第二流路Rb内において、Z軸方向における伝熱領域200b,300bの他端側から一端側に向けて流通する。
Then, as shown in FIGS. 7 and 8, the first fluid A flows in the Z-axis direction in the first flow path Ra, and the second fluid B flows in the Z-axis direction in the second flow path Rb. That is, the first fluid A flows from one end of the heat transfer regions 200a, 300a in the Z-axis direction to the other end in the first flow channel Ra, and the second fluid B flows in the second flow channel Rb. , The heat flows from the other ends of the heat transfer regions 200b and 300b in the Z-axis direction toward one end.
より具体的に説明すると、図9に示す如く、第一流路Ra内で流通する第一流体Aは、伝熱領域200a,300aにある凹部201b,301bに沿って流れ、その凹部201b,301bの含まれる凹凸群201,301の凸部201a,301a(凹部201b,301bと隣り合う凸部201a,301a)に衝突する。その結果、第一流体Aは、衝突した凸部201a,202a,301a,302aの両側に分岐する。
More specifically, as shown in FIG. 9, the first fluid A flowing in the first flow path Ra flows along the concave portions 201b and 301b in the heat transfer regions 200a and 300a, and the first fluid A in the concave portions 201b and 301b It collides with the convex portions 201a and 301a (the convex portions 201a and 301a adjacent to the concave portions 201b and 301b) of the included concave and convex groups 201 and 301. As a result, the first fluid A branches to both sides of the colliding convex portions 201a, 202a, 301a, and 302a.
そうすると、分岐した第一流体Aは、衝突した凸部201a,301aを含む凹凸群201,301の両側にある凹凸群201,301の凹部201b,301bに沿って下流側に流れる。そして、凹部201b,301bに沿って流れる第一流体Aは、その凹部201b,301bの含まれる凹凸群201,301の凸部201a,301a(凹部201b,301bと隣り合う凸部201a,301a)に衝突する。その結果、凸部201a,301aに衝突した第一流体Aは,該凸部201a,301aの両側に分岐する。
Then, the branched first fluid A flows downstream along the concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides of the concave and convex groups 201 and 301 including the colliding convex portions 201a and 301a. Then, the first fluid A flowing along the concave portions 201b, 301b is applied to the convex portions 201a, 301a of the concave / convex groups 201, 301 (the convex portions 201a, 301a adjacent to the concave portions 201b, 301b) included in the concave portions 201b, 301b. collide. As a result, the first fluid A colliding with the convex portions 201a, 301a is branched to both sides of the convex portions 201a, 301a.
これにより、第一流体Aは、元の凹凸群201,301に含まれる凹部201b,301bに沿って流通する。すなわち、上流側の凸部201a,301aによって分岐した第一流体Aは、異なる列(隣の列)の凸部201a,301aとの衝突によって元の列(凹凸群201,301)に合流する。このように、第一流体Aは、分岐と合流とを繰り返しつつ下流側に流れる。これにより、第一流路Ra内において、第一流体Aの流れに乱れが生じる。
に よ り Thereby, the first fluid A flows along the concave portions 201b and 301b included in the original unevenness groups 201 and 301. That is, the first fluid A branched by the upstream-side convex portions 201a and 301a merges with the original line (the unevenness groups 201 and 301) by collision with the convex portions 201a and 301a in different rows (adjacent rows). Thus, the first fluid A flows downstream while repeating branching and merging. Thereby, the flow of the first fluid A is disturbed in the first flow path Ra.
特に、本実施形態において、凹凸群201,301(凹凸群201,301の沿う仮想線VL)は、縦中心線CL1に対して45°未満で傾斜しているため、第一流体Aが流れる方向の成分を多く含んだ角度で配置される。これにより、第一流体Aが下流側に向けて流通するに当たり、凹部201b,301bに沿って流通し易くなるため、流通抵抗の増加が抑えられる。
In particular, in the present embodiment, since the unevenness groups 201 and 301 (virtual line VL along the unevenness groups 201 and 301) are inclined at less than 45 ° with respect to the vertical center line CL1, the flow direction of the first fluid A flows. Are arranged at an angle that includes a lot of components. Accordingly, when the first fluid A flows downstream, the first fluid A easily flows along the concave portions 201b and 301b, so that an increase in the flow resistance is suppressed.
本実施形態において、第二流路Rbを画定する主伝熱部20a,30a(第二面S2にある伝熱領域200b,300b)の複数の凹凸群202,302は、第一流路Raを画定する主伝熱部20a,30a(第一面S1にある伝熱領域200a,300a)の複数の凹凸群201,301に対して凹凸関係を逆にした態様であり、単一の凸部202a,302aに対して二つの凸部202a,302aが交差衝合しているため、図10に示す如く、第二流路Rb内で流通する第二流体Bについても、第一流路Ra内で流通する第一流体Aと同様に、分岐及び合流を繰り返しつつ、下流側に流通する。
In the present embodiment, the plurality of uneven groups 202 and 302 of the main heat transfer portions 20a and 30a (the heat transfer areas 200b and 300b on the second surface S2) that define the second flow path Rb define the first flow path Ra. This is a mode in which the unevenness relationship is reversed with respect to the plurality of unevenness groups 201 and 301 of the main heat transfer portions 20a and 30a (the heat transfer regions 200a and 300a on the first surface S1). Since the two convex portions 202a and 302a are in cross-contact with the 302a, the second fluid B flowing in the second flow path Rb also flows in the first flow path Ra as shown in FIG. Like the first fluid A, the fluid flows downstream while repeating branching and merging.
このように、第一流体Aが第一流路Ra内を流通し、第二流体Bが第二流路Rb内を流通することで、第一流体Aと第二流体Bとは、第一流路Raと第二流路Rbとを区画する主伝熱部20a,30a(伝熱領域200a,200b,300a,300b)を介して熱交換する。そして、図2に示す如く、熱交換を終えた第一流体Aは、第一流路Raから他方の第一連通路Ra2を経て外部に排出され、熱交換を終えた第二流体Bは、第二流路Rbから他方の第二連通路Rb2を経て外部に排出される。
As described above, the first fluid A flows through the first flow channel Ra, and the second fluid B flows through the second flow channel Rb. Heat is exchanged via main heat transfer sections 20a, 30a ( heat transfer areas 200a, 200b, 300a, 300b) that partition Ra and second flow path Rb. Then, as shown in FIG. 2, the first fluid A that has completed the heat exchange is discharged from the first flow path Ra to the outside through the other first series passage Ra2, and the second fluid B that has completed the heat exchange is the second fluid B. It is discharged from the two flow paths Rb to the outside via the other second communication path Rb2.
以上のように、本実施形態に係るプレート式熱交換器1は、X軸方向の両面に伝熱領域200a,200b,300a,300bを含む伝熱プレート2,3であって、それぞれの伝熱領域200a,200b,300a,300bがX軸方向に重ね合わされた複数の伝熱プレート2,3を備え、該複数の伝熱プレート2,3のそれぞれを境にして、第一流体AをX軸方向と直交するZ軸方向に流通させる第一流路Raと、第二流体BをZ軸方向に流通させる第二流路RbとがX軸方向で交互に形成され、伝熱領域200a,200b,300a,300bは、Z軸方向に延びる自身の縦中心線CL1に対して傾斜する方向に長手を有する凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bを含み且つ該凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bが前記傾斜する方向に延びる仮想線VLに沿って交互に並ぶ凹凸群201,202,301,302であって、前記傾斜する方向と直交する方向に並ぶ複数の凹凸群201,202,301,302を有し、該複数の凹凸群201,202,301,302のそれぞれの凸部201a,202a,301a,302aは、前記傾斜する方向と直交する方向で隣り合う凹凸群201,202,301,302の凹部201b,202b,301b,302bに対して横並びに配置されるとともに、前記複数の凹凸群201,202,301,302のそれぞれの凹部201b,202b,301b,302bは、前記傾斜する方向と直交する方向で隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aに対して横並びに配置され、伝熱領域200a,200b,300a,300bを対向させて隣り合う伝熱プレート2,3は、互いの凹凸群201,202,301,302の凸部201a,202a,301a,302a同士を交差衝合させている。
As described above, the plate heat exchanger 1 according to the present embodiment includes the heat transfer plates 2 and 3 including the heat transfer regions 200a, 200b, 300a, and 300b on both surfaces in the X-axis direction. Regions 200a, 200b, 300a, and 300b are provided with a plurality of heat transfer plates 2 and 3 superposed in the X-axis direction. A first flow path Ra for flowing in the Z-axis direction orthogonal to the direction and a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction, and the heat transfer regions 200a, 200b, 300a and 300b include convex portions 201a, 202a, 301a and 302a and concave portions 201b, 202b, 301b and 302b having a length in a direction inclined with respect to the longitudinal center line CL1 extending in the Z-axis direction. The projections 201a, 202a, 301a, 302a and the depressions 201b, 202b, 301b, 302b are irregular groups 201, 202, 301, 302 alternately arranged along a virtual line VL extending in the inclined direction. It has a plurality of concavo- convex groups 201, 202, 301, 302 arranged in a direction orthogonal to the direction of inclination, and each of the convex portions 201a, 202a, 301a, 302a of the plurality of concavo- convex groups 201, 202, 301, 302 The recesses 201b, 202b, 301b, 302b of the concavo- convex groups 201, 202, 301, 302 adjacent in the direction perpendicular to the tilting direction are arranged side by side, and the plurality of concavo- convex groups 201, 202, 301, Each of the recesses 201b, 202b, 301b, 302b of the 302 is orthogonal to the tilting direction. The heat transfer regions 200a, 200b, 300a, 300b are arranged side by side with the protrusions 201a, 202a, 301a, 302a of the concavo- convex groups 201, 202, 301, 302 which are adjacent to each other in the direction in which the heat transfer regions 200a, 200b, 300a, 300b face each other. The plates 2 and 3 make the projections 201a, 202a, 301a and 302a of the concavo- convex groups 201, 202, 301 and 302 cross each other.
上記構成によれば、伝熱プレート2,3(伝熱領域200a,200b,300a,300b)にある複数の凹凸群201,202,301,302の凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bのそれぞれが千鳥状に配置される。すなわち、複数の凸部201a,202a,301a,302aが伝熱領域200a,200b,300a,300b内に千鳥状に配置され、複数の凹部201b,202b,301b,302bが伝熱領域200a,200b,300a,300b内に複数の凸部201a,202a,301a,302aを躱して千鳥状に配置される。
According to the above configuration, the protrusions 201a, 202a, 301a, 302a and the recesses 201b of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer plates 2, 3 ( heat transfer regions 200a, 200b, 300a, 300b). , 202b, 301b, 302b are arranged in a staggered manner. That is, the plurality of convex portions 201a, 202a, 301a, 302a are arranged in a staggered manner in the heat transfer regions 200a, 200b, 300a, 300b, and the plurality of concave portions 201b, 202b, 301b, 302b are formed in the heat transfer regions 200a, 200b, The plurality of protrusions 201a, 202a, 301a, and 302a are arranged in a staggered manner in 300a and 300b.
これにより、第一流体Aは、第一流路RaでZ軸方向に流通するに当たり、第一流路Raを画定する伝熱プレート2,3(伝熱領域200a,300a)にある凹部201b,301bに沿って流れ、該凹部201b,301bの下流側で隣り合う凸部201a,301a(共通の凹凸群201,301の凸部201a,301a)と衝突する。
Accordingly, when the first fluid A flows in the Z-axis direction in the first flow path Ra, the first fluid A is transferred to the concave portions 201b and 301b in the heat transfer plates 2 and 3 ( heat transfer areas 200a and 300a) that define the first flow path Ra. It flows along and collides with the convex portions 201a, 301a adjacent on the downstream side of the concave portions 201b, 301b (the convex portions 201a, 301a of the common concave / convex groups 201, 301).
そうすると、第一流体Aの流れが変わり、第一流体Aは、周辺の凹部201b,301b(例えば、両側の凹凸群201,301の凹部201b,301b、相手方の伝熱プレート2,3の凹凸群201,301の凹部201b,301b)に乗り移って該凹部201b,301bに沿って流れる。このように、第一流体Aは、凹部201b,301bに沿った流れと、凸部201a,301aに対する衝突を繰り返しつつ、下流側に流れる。
Then, the flow of the first fluid A changes, and the first fluid A is filled with the peripheral concave portions 201b and 301b (for example, concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides, and concave and convex groups of the heat transfer plates 2 and 3 on the other side). 201, 301, and flows along the concave portions 201b, 301b. As described above, the first fluid A flows downstream while repeating the flow along the concave portions 201b and 301b and the collision with the convex portions 201a and 301a.
また、第二流体Bは、第二流路RbでZ軸方向に流通するに当たり、第二流路Rbを画定する伝熱プレート2,3(伝熱領域200b,300b)にある凹部202b,302bに沿って流れ、該凹部202b,302bの下流側で隣り合う凸部202a,302a(共通の凹凸群202,302の凸部202a,302a)と衝突する。
When the second fluid B flows in the Z-axis direction in the second flow path Rb, the concave portions 202b and 302b in the heat transfer plates 2 and 3 ( heat transfer areas 200b and 300b) that define the second flow path Rb. And collides with the adjacent convex portions 202a, 302a on the downstream side of the concave portions 202b, 302b (the convex portions 202a, 302a of the common concave / convex groups 202, 302).
そうすると、第二流体Bの流れが変わり、第二流体Bは、周辺の凹部202b,302b(例えば、両側の凹凸群202,302の凹部202b,302b、相手方の伝熱プレート2,3の凹凸群202,302の凹部202b,302b)に乗り移って該凹部202b,302bに沿って流れる。このように、第二流体Bは、凹部202b,302bに沿った流れと、凸部202a,302aに対する衝突を繰り返しつつ、下流側に流れる。
Then, the flow of the second fluid B is changed, and the second fluid B is filled with the peripheral concave portions 202b and 302b (for example, the concave portions 202b and 302b of the concave and convex groups 202 and 302 on both sides, and the concave and convex groups of the heat transfer plates 2 and 3 on the other side). 202, 302b) and flows along the recesses 202b, 302b. As described above, the second fluid B flows downstream while repeating the flow along the concave portions 202b and 302b and the collision with the convex portions 202a and 302a.
以上のように、第一流体A及び第二流体Bのそれぞれが流路(第一流路Ra又は第二流路Rb)を画定する伝熱領域200a,200b,300a,300bにある凹部201b,202b,301b,302bに沿って流れるため、上記構成のプレート式熱交換器1では、流通抵抗の増大が抑えられる。また、第一流体A及び第二流体Bのそれぞれが、凹部201b,202b,301b,302bを含む凹凸群201,202,301,302の凸部201a,202a,301a,302aと衝突するため、上記構成のプレート式熱交換器1では、第一流体A及び第二流体Bのそれぞれの流れに乱れが生じることになり、高い伝熱性能が得られる。
As described above, the concave portions 201b, 202b in the heat transfer regions 200a, 200b, 300a, 300b in which the first fluid A and the second fluid B each define a flow path (the first flow path Ra or the second flow path Rb). , 301b, and 302b, the plate-type heat exchanger 1 having the above-described configuration suppresses an increase in flow resistance. Further, since each of the first fluid A and the second fluid B collides with the convex portions 201a, 202a, 301a, 302a of the concave and convex groups 201, 202, 301, 302 including the concave portions 201b, 202b, 301b, 302b, In the plate heat exchanger 1 having the configuration, the flows of the first fluid A and the second fluid B are disturbed, and high heat transfer performance is obtained.
特に、本実施形態において、伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302の凸部201a,202a,301a,302aのそれぞれは、X軸方向で隣り合う相手方の伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302のうちの少なくとも二つの凹凸群201,202,301,302の凸部201a,202a,301a,302aと交差衝合している。
In particular, in the present embodiment, each of the protrusions 201a, 202a, 301a, 302a of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the heat transfer plates 2, 3 , At least two of the plurality of concavo- convex groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the opposing heat transfer plates 2, 3 adjacent in the X-axis direction. , 301, 302 cross-impact with the projections 201a, 202a, 301a, 302a.
このようにすれば、凸部201a,301aに衝突した第一流体Aが該凸部201a,301aを含む凹凸群201,301の両側にある凹凸群201,301の凹部201b,301bに誘導され、凸部202a,302aに衝突した第二流体Bが該凸部202a,302aを含む凹凸群202,302の両側にある凹凸群202,302の凹部202b,302bに誘導される。
With this configuration, the first fluid A that has collided with the convex portions 201a and 301a is guided to the concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides of the concave and convex groups 201 and 301 including the convex portions 201a and 301a. The second fluid B colliding with the convex portions 202a and 302a is guided to the concave portions 202b and 302b of the concave and convex groups 202 and 302 on both sides of the concave and convex groups 202 and 302 including the convex portions 202a and 302a.
具体的に説明すると、共通の伝熱領域200a,200b,300a,300b内にある複数の凹凸群201,202,301,302は、縦中心線CL1に対する傾斜方向(仮想線VLの延びる方向)に対して直交方向に並ぶため、異なる凹凸群201,202,301,302の凸部201a,202a,301a,302aは、凹凸群201,202,301,302の延びる方向(仮想線VLの延びる方向)に対して直交する方向の異なる位置に配置される。すなわち、異なる凹凸群201,202,301,302の凸部201a,202a,301a,302aは、縦中心線CL1に対する傾斜方向(仮想線VLの延びる方向)と直交する方向に間隔をあけて配置される。
More specifically, the plurality of uneven groups 201, 202, 301, and 302 in the common heat transfer regions 200a, 200b, 300a, and 300b are inclined in the direction of inclination with respect to the vertical center line CL1 (the direction in which the virtual line VL extends). The projections 201 a, 202 a, 301 a, 302 a of the different concavo- convex groups 201, 202, 301, 302 are arranged in the orthogonal direction, and therefore, the extending direction of the concavo- convex groups 201, 202, 301, 302 (the direction in which the virtual line VL extends). Are arranged at different positions in a direction orthogonal to the direction. That is, the convex portions 201a, 202a, 301a, 302a of the different concavo- convex groups 201, 202, 301, 302 are arranged at intervals in a direction orthogonal to the inclination direction (the direction in which the virtual line VL extends) with respect to the vertical center line CL1. You.
従って、伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302の凸部201a,202a,301a,302aのそれぞれに対し、該凸部201a,202a,301a,302aの長手方向に間隔をあけて相手方の伝熱プレート2,3の少なくとも二つの凸部201a,202a,301a,302a(異なる凹凸群201,202,301,302の凸部201a,202a,301a,302a)が交差衝合する。
Therefore, for each of the convex portions 201a, 202a, 301a, 302a of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the heat transfer plates 2, 3, At least two convex portions 201a, 202a, 301a, 302a of the mating heat transfer plates 2, 3 (protrusions of different unevenness groups 201, 202, 301, 302) are spaced apart in the longitudinal direction of 201a, 202a, 301a, 302a. 201a, 202a, 301a, 302a) cross-impact.
すなわち、伝熱プレート2,3の伝熱領域にある複数の凹凸群201,202,301,302の凸部201a,202a,301a,302aのそれぞれの端部又はその近傍に対し、相手方の伝熱プレート2,3の凸部201a,202a,301a,302a(異なる凹凸群201,202,301,302の凸部201a,202a,301a,302a)が交差衝合する。
That is, the heat transfer plates of the mating members 201, 202a, 301a, and 302a in the heat transfer regions of the heat transfer plates 2 and 3 are provided at the ends of the protrusions 201a, 202a, 301a, and 302a or in the vicinity thereof. The protruding portions 201a, 202a, 301a, and 302a of the plates 2 and 3 (the protruding portions 201a, 202a, 301a, and 302a of the different concavo- convex groups 201, 202, 301, and 302) intersect.
これにより、凸部201a,301aに衝突した第一流体Aが、相手方の伝熱プレート2,3側に流れようとしても該相手方の伝熱プレート2,3の凸部201a,301aによって阻止され、結果的に衝突した凸部201a,301aを含む凹凸群201,301の両側にある凹凸群201,301の凹部201b,301bに誘導(分岐)され、該凹部201b,301bに沿って流れる。そして、凹部201b,301bに沿って流れた第一流体Aは、該凹部201b,301bと隣り合う凸部201a,301aと衝突する。
As a result, even if the first fluid A colliding with the convex portions 201a and 301a attempts to flow toward the heat transfer plates 2 and 3 of the other party, the first fluid A is blocked by the convex portions 201a and 301a of the heat transfer plates 2 and 3 of the other party. As a result, it is guided (branched) to the concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides of the concave and convex groups 201 and 301 including the colliding convex portions 201a and 301a, and flows along the concave portions 201b and 301b. Then, the first fluid A flowing along the concave portions 201b, 301b collides with the convex portions 201a, 301a adjacent to the concave portions 201b, 301b.
そうすると、ここでも第一流体Aは、相手方の伝熱プレート2,3側に流れようとするが、該相手方の伝熱プレート2,3の凸部201a,301aによって阻止され、結果的に衝突した凸部201a,301aを含む凹凸群201,301の両側にある凹凸群201,301の凹部201b,301bに誘導(分岐)される。すなわち、元の凹凸群201,301に含まれる凹部201b,301bに誘導(合流)される。これにより、第一流体Aは、凸部201a,301aとの衝突で分岐と合流とを繰り返して、下流側に流れる。この流れ(凸部201a,301aとの衝突で分岐と合流とを繰り返す流れ)は、第二流体Bも同様である。
Then, the first fluid A also attempts to flow toward the heat transfer plates 2 and 3 of the other party, but is blocked by the convex portions 201a and 301a of the heat transfer plates 2 and 3 of the other party, and as a result, collides. It is guided (branched) to the concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides of the concave and convex groups 201 and 301 including the convex portions 201a and 301a. That is, it is guided (merged) to the concave portions 201b and 301b included in the original concave and convex groups 201 and 301. As a result, the first fluid A repeatedly branches and joins upon collision with the convex portions 201a and 301a, and flows to the downstream side. This flow (a flow in which branching and merging are repeated by collision with the convex portions 201a and 301a) is the same for the second fluid B.
このように、第一流路Raに第一流体Aが凹部201b,301bを流れる機会があり、第二流路Rbに第二流体Bが凹部202b,302bを流れる機会があるため、それぞれの流路で流通抵抗が高くなることが抑制される。また、第一流路Ra内で第一流体Aが分岐と合流を繰り返し、第二流路Rb内で第二流体Bが分岐と合流を繰り返すことで、第一流体A及び第二流体Bのそれぞれの流れに乱れが生じる結果、第一流体Aと第二流体Bとの熱交換性能(伝熱性能)が高くなる。
As described above, there is an opportunity for the first fluid A to flow through the recesses 201b and 301b in the first channel Ra, and there is an opportunity for the second fluid B to flow in the recesses 202b and 302b in the second channel Rb. This suppresses the increase in flow resistance. In addition, the first fluid A repeats branching and joining in the first flow path Ra, and the second fluid B repeats branching and joining in the second flow path Rb. As a result, the heat exchange performance (heat transfer performance) between the first fluid A and the second fluid B increases.
さらに、本実施形態に係るプレート式熱交換器1は、第一流路Ra内で第一流体Aが分岐と合流を繰り返し、第二流路Rb内で第二流体Bが分岐と合流を繰り返すことで、第一流体A及び第二流体Bのそれぞれの流れに乱れが生じるため、この流れの乱れによって混合機能を発揮する。
Further, in the plate heat exchanger 1 according to the present embodiment, the first fluid A repeats branching and joining in the first channel Ra, and the second fluid B repeats branching and joining in the second channel Rb. Then, since the respective flows of the first fluid A and the second fluid B are disturbed, the disturbed flows exert a mixing function.
これにより、本実施形態に係るプレート式熱交換器1は、第一流体A又は第二流体Bの少なくとも何れか一方に含まれる成分が流通過程で分離することを防止できる。
Thereby, the plate heat exchanger 1 according to the present embodiment can prevent components contained in at least one of the first fluid A and the second fluid B from being separated in the flow process.
また、本実施形態に係るプレート式熱交換器1は、第一流路Ra又は第二流路Rbの何れか一方に対し、二種類以上の液体を合わせた流体、或いは一種類以上の液体と粉体とを合わせた流体を第一流体A又は第二流体Bとして流通させることで、第一流体A又は第二流体Bを構成する二種類以上の液体、或いは一種類以上の液体と粉体とを混合させる(ミキシングする)ことができる。
In addition, the plate heat exchanger 1 according to the present embodiment is configured such that a fluid in which two or more types of liquids are combined or one or more types of liquids and powders are supplied to one of the first channel Ra and the second channel Rb. By flowing the fluid combined with the body as the first fluid A or the second fluid B, two or more types of liquid constituting the first fluid A or the second fluid B, or one or more types of liquid and powder Can be mixed (mixed).
従って、本実施形態に係るプレート式熱交換器1は、第一流体A又は第二流体Bの何れか一方に含まれる複数の成分を混合させる混合器(ミキサー)として機能することもできる。すなわち、本実施形態に係るプレート式熱交換器1は、第一流体A又は第二流体Bの何れか一方に含まれる複数の成分を混合させつつ、第一流体Aと第二流体Bとを熱交換させる(第一流体A又は第二流体Bの何れか一方を加熱又は冷却させる)ことで、第一流体A又は第二流体Bの何れか一方に含まれる成分同士を反応させる反応器として機能する。
Therefore, the plate heat exchanger 1 according to the present embodiment can also function as a mixer that mixes a plurality of components contained in either the first fluid A or the second fluid B. That is, the plate heat exchanger 1 according to the present embodiment mixes the first fluid A and the second fluid B while mixing a plurality of components contained in either the first fluid A or the second fluid B. By performing heat exchange (heating or cooling either the first fluid A or the second fluid B), the reactor contained in the first fluid A or the second fluid B reacts with each other. Function.
また、本実施形態において、凹凸群201,202,301,302の配置の基準となる仮想線VLは、Z軸方向に延びる縦中心線CL1に対して45°未満の角度で傾斜しているため、凹凸群201,202,301,302に含まれる凹部201b,202b,301b,302bの長手に延びる方向の成分に、第一流体A及び第二流体Bの流れ方向の成分の方が該流れ方向と直交する方向の成分よりも多く含まれる。
In the present embodiment, the virtual line VL, which is a reference for the arrangement of the concavo- convex groups 201, 202, 301, and 302, is inclined at an angle of less than 45 ° with respect to the vertical center line CL1 extending in the Z-axis direction. The components in the direction extending in the longitudinal direction of the concave portions 201b, 202b, 301b, and 302b included in the concave and convex groups 201, 202, 301, and 302 are the component of the flow direction of the first fluid A and the second fluid B in the flow direction. Is included more than the component in the direction orthogonal to.
これにより、第一流路Raで第一流体Aが流れ易く、第二流路Rbで第二流体Bが流れ易くなる。すなわち、第一流路Ra及び第二流路Rbのそれぞれにおいて、流通抵抗が高くなることが抑制される。
This facilitates the flow of the first fluid A in the first flow path Ra and the flow of the second fluid B in the second flow path Rb. That is, in each of the first flow path Ra and the second flow path Rb, an increase in flow resistance is suppressed.
このように、本実施形態に係るプレート式熱交換器1によれば、流体の流通抵抗の増加を抑えつつ、高い伝熱性能を得ることができるという優れた効果を奏し得る。
As described above, according to the plate heat exchanger 1 according to the present embodiment, an excellent effect that high heat transfer performance can be obtained while suppressing an increase in fluid flow resistance can be achieved.
次に、本発明の第二実施形態に係るプレート式熱交換器について、添付図面を参照しつつ説明する。本実施形態に係るプレート式熱交換器は、第一実施形態と同一の構成又は相当する構成を有する。これに伴い、本実施形態に係るプレート式熱交換器の説明に当たり、第一実施形態と同一の構成又は相当する構成については、同一名称及び同一符号を付すこととする。
Next, a plate heat exchanger according to a second embodiment of the present invention will be described with reference to the accompanying drawings. The plate heat exchanger according to the present embodiment has the same configuration as the first embodiment or a configuration corresponding thereto. Accordingly, in the description of the plate heat exchanger according to the present embodiment, the same configurations or corresponding configurations as in the first embodiment will be denoted by the same names and the same reference numerals.
プレート式熱交換器は、図11に示す如く、第一流体Aと第二流体Bとを熱交換させるもので、第一方向に重ね合わされた複数の伝熱プレート2,3を備える。
As shown in FIG. 11, the plate-type heat exchanger exchanges heat between the first fluid A and the second fluid B, and includes a plurality of heat transfer plates 2 and 3 stacked in the first direction.
なお、以下の説明においても、第一方向をX軸方向とし、第一方向と直交する第二方向をZ軸方向とし、第一方向及び第二方向のそれぞれと直交する第三方向をY軸方向とする。これに伴い、各図には、各方向に対応した直交三軸(X軸方向と対応するX軸、Y軸方向と対応するY軸、及びZ軸方向と対応するZ軸)を補助的に図示している。
In the following description, a first direction is defined as an X-axis direction, a second direction orthogonal to the first direction is defined as a Z-axis direction, and a third direction orthogonal to each of the first direction and the second direction is defined as a Y-axis direction. Direction. Accordingly, in each drawing, three orthogonal axes (X-axis corresponding to the X-axis direction, Y-axis corresponding to the Y-axis direction, and Z-axis corresponding to the Z-axis direction) are supplementarily illustrated in each drawing. It is illustrated.
本実施形態に係るプレート式熱交換器1において、図12に示す如く、複数の伝熱プレート2,3のそれぞれを境にして、第一流体AをZ軸方向に流通させる第一流路Raと、第二流体BをZ軸方向に流通させる第二流路Rbとが、X軸方向で交互に形成されている。
In the plate heat exchanger 1 according to the present embodiment, as shown in FIG. 12, a first flow path Ra that allows the first fluid A to flow in the Z-axis direction with each of the plurality of heat transfer plates 2 and 3 as a boundary. And a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction.
複数の伝熱プレート2,3のそれぞれは、図13乃至図16に示す如く、X軸方向の両面S1,S2に伝熱領域200a,200b,300a,300bを含む。より具体的に説明すると、複数の伝熱プレート2,3のそれぞれは、X軸方向に第一面S1と該第一面S1の反対側の第二面S2を有する伝熱部20,30と、伝熱部20,30の外周全周から延出した環状部21,31とを備える。
As shown in FIGS. 13 to 16, each of the plurality of heat transfer plates 2 and 3 includes heat transfer regions 200a, 200b, 300a and 300b on both surfaces S1 and S2 in the X-axis direction. More specifically, each of the plurality of heat transfer plates 2 and 3 includes a heat transfer unit 20 or 30 having a first surface S1 and a second surface S2 opposite to the first surface S1 in the X-axis direction. , And annular portions 21 and 31 extending from the entire outer periphery of the heat transfer units 20 and 30.
伝熱部20,30の第一面S1及び第二面S2は、第一流体Aと第二流体Bとの熱交換に寄与する伝熱領域200a,200b,300a,300bを含む。
第一 The first surface S1 and the second surface S2 of the heat transfer units 20, 30 include heat transfer regions 200a, 200b, 300a, 300b that contribute to heat exchange between the first fluid A and the second fluid B.
具体的に説明すると、伝熱部20,30は、X軸方向から見て四角形状に形成される。本実施形態において、伝熱部20,30は、X軸方向から見てZ軸方向に長手をなした長方形状に形成される。そして、伝熱部20,30は、Z軸方向に延びる中心線(以下、縦中心線という)CL1と、Y軸方向に延びる中心線(以下、横中心線という)CL2との交点を含む主伝熱部20a,30aと、Z軸方向の主伝熱部20a,30aの両側にある一対の端部20b,30bとを含む。
す る と Specifically, the heat transfer units 20 and 30 are formed in a square shape when viewed from the X-axis direction. In the present embodiment, the heat transfer units 20 and 30 are formed in a rectangular shape that is elongated in the Z-axis direction when viewed from the X-axis direction. The heat transfer units 20 and 30 mainly include an intersection of a center line (hereinafter, referred to as a vertical center line) CL1 extending in the Z-axis direction and a center line (hereinafter, referred to as horizontal center line) CL2 extending in the Y-axis direction. Heat transfer portions 20a, 30a and a pair of ends 20b, 30b on both sides of the main heat transfer portions 20a, 30a in the Z-axis direction are included.
主伝熱部20a,30aは、X軸方向から見て四角形状に形成される。本実施形態において、主伝熱部20a,30aは、Z軸方向に長手をなした長方形状に形成される。一対の端部20b,30bは、主伝熱部20a,30aと連続し、伝熱部20,30全体をX軸方向から見て四角形状(長方形状)に形成している。
The main heat transfer sections 20a and 30a are formed in a square shape when viewed from the X-axis direction. In the present embodiment, the main heat transfer sections 20a and 30a are formed in a rectangular shape having a length in the Z-axis direction. The pair of ends 20b and 30b are continuous with the main heat transfer sections 20a and 30a, and form the entire heat transfer sections 20 and 30 in a square shape (rectangular shape) when viewed from the X-axis direction.
伝熱部20,30のうちの主伝熱部20a,30aの第一面S1及び第二面S2は、伝熱領域200a,200b,300a,300bとされる。第一面S1及び第二面S2の伝熱領域200a,200b,300a,300bのそれぞれは、縦中心線CL1に対して傾斜する方向(以下、傾斜方向という)に長手を有する凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bを含み且つ該凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bが傾斜方向に延びる仮想線VLに沿って交互に並ぶ凹凸群201,202,301,302であって、傾斜方向と直交する方向に並ぶ複数の凹凸群201,202,301,302を有する。
第一 The first surface S1 and the second surface S2 of the main heat transfer portions 20a, 30a of the heat transfer portions 20, 30 are heat transfer regions 200a, 200b, 300a, 300b. Each of the heat transfer regions 200a, 200b, 300a, 300b of the first surface S1 and the second surface S2 has a convex portion 201a, 202a having a length in a direction inclined with respect to the vertical center line CL1 (hereinafter referred to as an inclined direction). , 301a, 302a and concave portions 201b, 202b, 301b, 302b, and the convex portions 201a, 202a, 301a, 302a and concave portions 201b, 202b, 301b, 302b are alternately arranged along an imaginary line VL extending in the inclined direction. Groups 201, 202, 301, and 302 include a plurality of uneven groups 201, 202, 301, and 302 arranged in a direction orthogonal to the tilt direction.
複数の凹凸群201,202,301,302のそれぞれの凸部201a,202a,301a,302aは、傾斜方向と直交する方向で隣り合う凹凸群201,202,301,302の凹部201b,202b,301b,302bと横並びに配置される。これに対し、複数の凹凸群201,202,301,302のそれぞれの凹部201b,202b,301b,302bは、傾斜方向と直交する方向で隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aと横並びに配置される。
Each of the convex portions 201a, 202a, 301a, 302a of the plurality of concave / convex groups 201, 202, 301, 302 is formed with concave portions 201b, 202b, 301b of the concave / convex groups 201, 202, 301, 302 adjacent in the direction orthogonal to the inclination direction. , 302b. On the other hand, each of the concave portions 201b, 202b, 301b, and 302b of the plurality of concave / convex groups 201, 202, 301, and 302 has a convex portion 201a of the concave / convex groups 201, 202, 301, and 302 that are adjacent to each other in a direction orthogonal to the inclination direction. , 202a, 301a, and 302a.
すなわち、複数列の凹凸群201,202,301,302の凸部201a,202a,301a,302aは、伝熱領域200a,200b,300a,300b内で千鳥状に配置され、複数列の凹凸群201,202,301,302の凹部201b,202b,301b,302bは、伝熱領域200a,200b,300a,300b内で凸部201a,202a,301a,302aの間に配置され、該伝熱領域200a,200b,300a,300b内で千鳥状に配置されている。
That is, the projections 201a, 202a, 301a, and 302a of the plurality of rows of unevenness groups 201, 202, 301, and 302 are arranged in a staggered manner in the heat transfer regions 200a, 200b, 300a, and 300b. , 202, 301, 302 are disposed between the convex portions 201a, 202a, 301a, 302a in the heat transfer regions 200a, 200b, 300a, 300b, and the heat transfer regions 200a, They are arranged in a zigzag pattern within 200b, 300a, and 300b.
より正確に説明すると、本実施形態において、複数の凹凸群201,202,301,302のそれぞれの凸部201a,202a,301a,302aは、隣り合う凹凸群201,202,301,302の凹部201b,202b,301b,302bとY軸方向で横並びに配置される。これに対し、複数の凹凸群201,202,301,302のそれぞれの凹部201b,202b,301b,302bは、隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aとY軸方向で横並びに配置される。
More specifically, in the present embodiment, each of the convex portions 201a, 202a, 301a, and 302a of the plurality of concave and convex groups 201, 202, 301, and 302 is formed with the concave portion 201b of the adjacent concave and convex groups 201, 202, 301, and 302. , 202b, 301b, 302b in the Y-axis direction. On the other hand, each of the concave portions 201b, 202b, 301b, and 302b of the plurality of concave / convex groups 201, 202, 301, and 302 is different from the convex portions 201a, 202a, 301a, and 302a of the adjacent concave / convex groups 201, 202, 301, and 302. They are arranged side by side in the Y-axis direction.
これにより、異なる凹凸群201,202,301,302の凸部201a,202a,301a,302aと凹部201b,202b,301b,302bとがY軸方向に交互に配置された複数の群(行)が、Z軸方向に複数並んで形成されている。
Thereby, a plurality of groups (rows) in which the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b of the different concavo- convex groups 201, 202, 301, 302 are alternately arranged in the Y-axis direction are formed. , In the Z-axis direction.
傾斜方向は、縦中心線CL1に対して45°未満の角度で傾斜する方向に設定される。これに伴い、縦中心線CL1に対する仮想線VLの傾斜角度θ1は、45°未満に設定される。すなわち、横中心線CL2に対する仮想線VLの傾斜角度θ2は、45°よりも大きく設定される。本実施形態において、縦中心線CL1に対する仮想線VLの傾斜角度θ1は、30°乃至40°に設定される。本実施形態において、横中心線CL2に対する仮想線VLの傾斜角度θ2は、60°乃至70°に設定される。
The inclination direction is set to a direction inclined at an angle of less than 45 ° with respect to the vertical center line CL1. Accordingly, the inclination angle θ1 of the virtual line VL with respect to the vertical center line CL1 is set to less than 45 °. That is, the inclination angle θ2 of the virtual line VL with respect to the horizontal center line CL2 is set to be larger than 45 °. In the present embodiment, the inclination angle θ1 of the virtual line VL with respect to the vertical center line CL1 is set to 30 ° to 40 °. In the present embodiment, the inclination angle θ2 of the virtual line VL with respect to the horizontal center line CL2 is set to 60 ° to 70 °.
これにより、複数の伝熱プレート2,3は、伝熱部20,30(伝熱領域200a,200b,300a,300b)を対向させた状態で重ね合わされることで、隣り合う伝熱プレート2,3の互いの凹凸群201,202,301,302の凸部201a,202a,301a,302a同士を交差衝合させるようになっている。
Thus, the plurality of heat transfer plates 2 and 3 are stacked with the heat transfer portions 20 and 30 ( heat transfer regions 200a, 200b, 300a and 300b) facing each other, so that the adjacent heat transfer plates 2 and 3 are stacked. The projections 201a, 202a, 301a, and 302a of the three concavo- convex groups 201, 202, 301, and 302 cross each other.
ここで、各凹凸群201,202,301,302に含まれる凸部201a,202a,301a,302aの長手方向の長さ及び凹部201b,202b,301b,302bの長手方向の長さ(仮想線VLの延びる方向に並ぶ凸部201a,202a,301a,302a同士の間隔)は、一つの凸部201a,202a,301a,302aが隣り合う(相手方の)伝熱プレート2,3の伝熱領域200a,200b,300a,300bに含まれる一つ(一列)の凹凸群201,202,301,302と交差(一つの凹凸群201,202,301,302の凸部201a,202a,301a,302aに対して交差衝合)するように設定される。
Here, the longitudinal lengths of the convex portions 201a, 202a, 301a, 302a and the longitudinal lengths of the concave portions 201b, 202b, 301b, 302b included in each of the concavo- convex groups 201, 202, 301, 302 (virtual line VL (The intervals between the convex portions 201a, 202a, 301a, and 302a) arranged in the extending direction of the heat transfer plates 200, 300a, 202a, 301a, and 302a. Intersect with one (one row) concavo- convex group 201, 202, 301, 302 included in 200b, 300a, 300b (for convex parts 201a, 202a, 301a, 302a of one concavo- convex group 201, 202, 301, 302). Cross collision).
凸部201a,202a,301a,302a(凸部201a,202a,301a,302aの頂上)と凹部201b,202b,301b,302b(凹部201b,202b,301b,302bの底)とは、X軸方向における位置を異にする。そのため、凸部201a,202a,301a,302aと凹部201b,202b,301b,302bとの間には、凸部201a,202a,301a,302aの頂上から凹部201b,202b,301b,302bの底(或いは、凹部201b,202b,301b,302bの底から凸部201a,202a,301a,302aの頂上)に繋がる中間領域(採番しない)が形成されている。
The projections 201a, 202a, 301a, 302a (tops of the projections 201a, 202a, 301a, 302a) and the recesses 201b, 202b, 301b, 302b (bottoms of the recesses 201b, 202b, 301b, 302b) in the X-axis direction Different position. Therefore, between the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b, the bottoms of the concave portions 201b, 202b, 301b, 302b (from the top of the convex portions 201a, 202a, 301a, 302a). An intermediate region (not numbered) is formed from the bottom of the recesses 201b, 202b, 301b, 302b to the top of the protrusions 201a, 202a, 301a, 302a).
この中間領域は、凹凸群201,202,301,302にある凸部201a,202a,301a,302aと凹部201b,202b,301b,302bとの間や、隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aと凹部201b,202b,301b,302bとの間に配置される。
This intermediate region is located between the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b in the concave / convex groups 201, 202, 301, 302, and the adjacent concave / convex groups 201, 202, 301, 302. Are disposed between the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b.
中間領域は、凸部201a,202a,301a,302aの頂上と凹部201b,202b,301b,302bの底との途中位置にZ軸方向及びY軸方向に広がる中段部位が含まれてもよいが、本実施形態においては、凸部201a,202a,301a,302aの頂上から凹部201b,202b,301b,302bの底に向けて(或いは、凹部201b,202b,301b,302bの底から凸部201a,202a,301a,302aの頂上に向けて)連続的に傾斜している。
The intermediate region may include a middle portion that extends in the Z-axis direction and the Y-axis direction at an intermediate position between the tops of the protrusions 201a, 202a, 301a, and 302a and the bottoms of the recesses 201b, 202b, 301b, and 302b. In the present embodiment, from the top of the projections 201a, 202a, 301a, 302a to the bottom of the depressions 201b, 202b, 301b, 302b (or from the bottom of the depressions 201b, 202b, 301b, 302b, the projections 201a, 202a). , 301a, 302a).
一対の端部20b,30bのそれぞれには、X軸方向に貫通した一対の貫通孔203,204,303,304が設けられている。一対の端部20b,30bのそれぞれにおいて、一対の貫通孔203,204,303,304は、Y軸方向に間隔をあけて配置されている。本実施形態において、一対の貫通孔203,204,303,304は、縦中心線CL1を挟んで配置されている。
A pair of through holes 203, 204, 303, 304 penetrating in the X-axis direction are provided in each of the pair of ends 20b, 30b. In each of the pair of ends 20b and 30b, the pair of through holes 203, 204, 303 and 304 are arranged at intervals in the Y-axis direction. In the present embodiment, the pair of through holes 203, 204, 303, 304 are arranged with the vertical center line CL1 interposed therebetween.
本実施形態において、複数の伝熱プレート2,3のそれぞれは、金属プレートをプレス成型したものである。これに伴い、各伝熱プレート2,3において、第一面S1の伝熱領域200a,300aの凸部201a,301aと第二面S2の伝熱領域200b,300bの凹部202b,302bとが表裏の関係にあり、第一面S1の伝熱領域200a,300aの凹部201b,301bと第二面S2の伝熱領域200b,300bの凸部202a,302aとが表裏の関係にある。すなわち、伝熱プレート2,3の第一面S1の伝熱領域200a,300aにある凹凸群201,301と、伝熱プレート2,3の第二面S2の伝熱領域200b,300bにある凹凸群202,302とは、対応する位置で凹凸関係が反対で形成されている。
In the present embodiment, each of the plurality of heat transfer plates 2 and 3 is formed by press-molding a metal plate. Accordingly, in each of the heat transfer plates 2 and 3, the convex portions 201a and 301a of the heat transfer regions 200a and 300a on the first surface S1 and the concave portions 202b and 302b of the heat transfer regions 200b and 300b on the second surface S2 are front and back. The concave portions 201b and 301b of the heat transfer regions 200a and 300a on the first surface S1 and the convex portions 202a and 302a of the heat transfer regions 200b and 300b on the second surface S2 have a front and back relationship. That is, the unevenness groups 201 and 301 on the heat transfer areas 200a and 300a on the first surface S1 of the heat transfer plates 2 and 3, and the unevenness on the heat transfer areas 200b and 300b on the second surface S2 of the heat transfer plates 2 and 3. The groups 202 and 302 are formed in opposite positions at the corresponding positions.
本実施形態に係るプレート式熱交換器1は、二種類の伝熱プレート2,3を含む。この二種類の伝熱プレート2,3は、環状部21,31の伝熱部20,30からの延出方向及び凹凸群201,202,301,302の凹凸の位置を異にする以外は、同一構成である。
プ レ ー ト The plate heat exchanger 1 according to the present embodiment includes two types of heat transfer plates 2 and 3. The two types of heat transfer plates 2 and 3 are different from each other in that the directions in which the annular portions 21 and 31 extend from the heat transfer portions 20 and 30 and the positions of the unevenness of the unevenness groups 201, 202, 301, and 302 are different. They have the same configuration.
具体的に説明すると、二種類の伝熱プレート2,3は、主伝熱部20a,30a及び一対の端部20b,30bを含む伝熱部20,30と、環状部21,31とを備え、主伝熱部20a,30aの第一面S1及び第二面S2の伝熱領域200a,200b,300a,300bが複数の凹凸群201,202,301,302を有する点で共通している。
More specifically, the two types of heat transfer plates 2 and 3 include heat transfer portions 20 and 30 including main heat transfer portions 20a and 30a and a pair of ends 20b and 30b, and annular portions 21 and 31. The heat transfer regions 200a, 200b, 300a, 300b of the first surface S1 and the second surface S2 of the main heat transfer portions 20a, 30a are common in having a plurality of uneven groups 201, 202, 301, 302.
二種類の伝熱プレート2,3のうちの一方の伝熱プレート(以下、第一伝熱プレートという)2において、環状部21は、伝熱部20の第二面S2側に延出し、二種類の伝熱プレート2,3のうちの他方の伝熱プレート(以下、第二伝熱プレートという)3において、環状部31は、伝熱部30の第一面S1側に延出している。
In one of the two types of heat transfer plates 2 and 3 (hereinafter, referred to as a first heat transfer plate) 2, the annular portion 21 extends to the second surface S <b> 2 side of the heat transfer portion 20, In the other heat transfer plate (hereinafter, referred to as a second heat transfer plate) 3 of the types of heat transfer plates 2 and 3, the annular portion 31 extends to the first surface S1 side of the heat transfer portion 30.
第一伝熱プレート2の伝熱部20(主伝熱部20a)の第一面S1及び第二面S2のそれぞれの伝熱領域200a,200bにおいて、複数の凹凸群201,202は、X軸方向から見てY軸方向における伝熱部20の一端側から他端側に向けて先下りに傾斜している。これに対し、第二伝熱プレート3の伝熱部30(主伝熱部30a)の第一面S1及び第二面S2のそれぞれの伝熱領域300a,300bにおいて、複数の凹凸群301,302は、X軸方向から見てY軸方向における伝熱部30の他端側から一端側に向けて先下りに傾斜している。本実施形態において、第二伝熱プレート3の複数の凹凸群301,302は、X軸方向における同一側から見て、第一伝熱プレート2の複数の凹凸群201,202を縦中心線CL1で反転させた配置になっている。
In each of the heat transfer areas 200a and 200b of the first surface S1 and the second surface S2 of the heat transfer portion 20 (main heat transfer portion 20a) of the first heat transfer plate 2, the plurality of uneven groups 201 and 202 are formed along the X-axis. As seen from the direction, the heat transfer portion 20 is inclined downward from one end to the other end in the Y-axis direction. On the other hand, in the heat transfer regions 300a and 300b of the first surface S1 and the second surface S2 of the heat transfer portion 30 (main heat transfer portion 30a) of the second heat transfer plate 3, a plurality of unevenness groups 301 and 302 are provided. Is inclined downward from the other end to the one end of the heat transfer section 30 in the Y-axis direction when viewed from the X-axis direction. In the present embodiment, the plurality of uneven groups 301 and 302 of the second heat transfer plate 3 are arranged such that the plurality of uneven groups 201 and 202 of the first heat transfer plate 2 are aligned with the vertical center line CL1 when viewed from the same side in the X-axis direction. The arrangement is reversed.
そして、第一伝熱プレート2及び第二伝熱プレート3は、図12に示す如く、X軸方向で交互に配置され、隣り合う第一伝熱プレート2及び第二伝熱プレート3の環状部21,31同士が嵌合される(図13参照)。この状態で、第一伝熱プレート2の伝熱部20の第一面S1は、第二伝熱プレート3の伝熱部30の第一面S1と対向し、第一伝熱プレート2の伝熱部20の第二面S2は、第二伝熱プレート3の伝熱部30の第二面S2と対向する。
As shown in FIG. 12, the first heat transfer plate 2 and the second heat transfer plate 3 are alternately arranged in the X-axis direction, and the annular portions of the adjacent first heat transfer plate 2 and second heat transfer plate 3 21 and 31 are fitted together (see FIG. 13). In this state, the first surface S1 of the heat transfer portion 20 of the first heat transfer plate 2 faces the first surface S1 of the heat transfer portion 30 of the second heat transfer plate 3, and The second surface S2 of the heat section 20 faces the second surface S2 of the heat transfer section 30 of the second heat transfer plate 3.
この状態において、第一伝熱プレート2の伝熱部20の第一面S1(伝熱領域200a)にある複数の凹凸群201のそれぞれの凸部201aに対し、第二伝熱プレート3の伝熱部30の第一面S1(伝熱領域300a)に含まれる一列の凹凸群301が交差し、その凹凸群301の凸部301aが交差衝合する。すなわち、第一伝熱プレート2の伝熱部20の第一面S1(伝熱領域200a)にある複数の凹凸群201のそれぞれの凸部201aに対し、第二伝熱プレート3の伝熱部30の第一面S1(伝熱領域300a)にある一つの凸部301aが交差衝合する。
In this state, the transfer of the second heat transfer plate 3 to the respective protrusions 201a of the plurality of uneven groups 201 on the first surface S1 (heat transfer region 200a) of the heat transfer portion 20 of the first heat transfer plate 2 is performed. One row of unevenness groups 301 included in the first surface S1 (heat transfer area 300a) of the heat unit 30 intersect, and the projections 301a of the unevenness group 301 intersect. That is, the heat transfer portion of the second heat transfer plate 3 is provided for each of the protrusions 201a of the plurality of uneven groups 201 on the first surface S1 (heat transfer region 200a) of the heat transfer portion 20 of the first heat transfer plate 2. One of the protrusions 301a on the first surface S1 (the heat transfer region 300a) of the thirty cross-impacts.
また、第一伝熱プレート2の伝熱部20の第二面S2(伝熱領域200b)にある複数の凹凸群202のそれぞれの凸部202aに対し、第二伝熱プレート3の伝熱部30の第二面S2(伝熱領域300b)に含まれる一列の凹凸群302が交差し、その凹凸群302の凸部302aが交差衝合する。すなわち、第一伝熱プレート2の伝熱部20の第二面S2(伝熱領域200b)にある複数の凹凸群202のそれぞれの凸部202aに対し、第二伝熱プレート3の伝熱部30の第二面S2(伝熱領域300b)にある一つの凸部302aが交差衝合する。
Further, the heat transfer portion of the second heat transfer plate 3 is provided to each of the protrusions 202a of the plurality of uneven groups 202 on the second surface S2 (heat transfer region 200b) of the heat transfer portion 20 of the first heat transfer plate 2. One row of the uneven groups 302 included in the second surface S2 (the heat transfer region 300b) of 30 intersects, and the convex portions 302a of the uneven group 302 intersect. That is, the heat transfer portion of the second heat transfer plate 3 is moved to the respective protrusions 202a of the plurality of irregularities 202 on the second surface S2 (heat transfer region 200b) of the heat transfer portion 20 of the first heat transfer plate 2. One of the convex portions 302a on the second surface S2 (the heat transfer region 300b) of 30 cross-collides.
そして、X軸方向に重ね合わされた複数の伝熱プレート2,3(第一伝熱プレート2、第二伝熱プレート3)の環状部21,31間や、貫通孔203,204,303,304の周囲等が適宜液密にシールされる。本実施形態において、X軸方向に重ね合わされた複数の伝熱プレート2,3は、ロウ付けにより一体にされ、該ロウ付けによって環状部21,31間や貫通孔203,204,303,304の周囲等がシールされる。
Then, between the annular portions 21 and 31 of the plurality of heat transfer plates 2 and 3 (first heat transfer plate 2 and second heat transfer plate 3) superimposed in the X-axis direction, and through holes 203, 204, 303 and 304. Is sealed in a liquid-tight manner as appropriate. In the present embodiment, the plurality of heat transfer plates 2 and 3 superimposed in the X-axis direction are integrated by brazing, and the brazing is performed between the annular portions 21 and 31 and the through holes 203, 204, 303, and 304. The surroundings are sealed.
これにより、複数の伝熱プレート2,3の伝熱部20,30(第一伝熱プレート2の伝熱部20、第二伝熱プレート3の伝熱部30)を境にして、第一流体AをZ軸方向に流通させる第一流路Raと、第二流体BをZ軸方向に流通させる第二流路RbとがX軸方向で交互に形成される。すなわち、第一伝熱プレート2の伝熱部20の第一面S1に含まれる伝熱領域200aの凹部201b及び第二伝熱プレート3の伝熱部30の第一面S1に含まれる伝熱領域300aの凹部301bによって形成される空間が、第一流路Raを構成するとともに、第一伝熱プレート2の伝熱部20の第二面S2に含まれる伝熱領域200bの凹部202b及び第二伝熱プレート3の伝熱部30の第二面S2に含まれる伝熱領域300bの凹部302bによって形成される空間が、第二流路Rbを構成する。
As a result, the first and second heat transfer plates 2, 3 (the heat transfer unit 20 of the first heat transfer plate 2 and the heat transfer unit 30 of the second heat transfer plate 3) are bordered by the first heat transfer unit 20. A first flow path Ra for flowing the fluid A in the Z-axis direction and a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction. That is, the heat transfer included in the concave portion 201b of the heat transfer area 200a included in the first surface S1 of the heat transfer portion 20 of the first heat transfer plate 2 and the first surface S1 of the heat transfer portion 30 of the second heat transfer plate 3 The space formed by the concave portion 301b of the region 300a constitutes the first flow path Ra, and the concave portion 202b of the heat transfer region 200b and the second portion Sb included in the second surface S2 of the heat transfer portion 20 of the first heat transfer plate 2. The space formed by the concave portion 302b of the heat transfer region 300b included in the second surface S2 of the heat transfer portion 30 of the heat transfer plate 3 forms a second flow path Rb.
また、複数の伝熱プレート2,3(第一伝熱プレート2、第二伝熱プレート3)の対応する貫通孔203,204,303,304同士がX軸方向に連なり、第一流路Raのみに連通した一対の第一連通路Ra1,Ra2であって、第一流路Raに対して第一流体Aを流出入させる一対の第一連通路Ra1,Ra2が形成されるとともに、第二流路Rbのみに連通した一対の第二連通路Rb1,Rb2であって、第二流路Rbに対して第二流体Bを流出入させる一対の第二連通路Rb1,Rb2が形成される。
Further, the corresponding through holes 203, 204, 303, 304 of the plurality of heat transfer plates 2, 3 (first heat transfer plate 2, second heat transfer plate 3) are connected in the X-axis direction, and only the first flow path Ra is provided. And a pair of first series passages Ra1 and Ra2 that allow the first fluid A to flow into and out of the first flow passage Ra. A pair of second communication passages Rb1 and Rb2, which are a pair of second communication passages Rb1 and Rb2 that communicate only with Rb and that allow the second fluid B to flow into and out of the second flow passage Rb, are formed.
本実施形態に係るプレート式熱交換器1は、以上の通りであり、一方の第一連通路Ra1に第一流体Aを供給するとともに、一方の第二連通路Rb1に第二流体Bを供給すると、第一流体Aは、一方の第一連通路Ra1から複数の第一流路Raのそれぞれに流入し、第二流体Bは、一方の第二連通路Rb1から複数の第二流路Rbのそれぞれに流入する。
The plate heat exchanger 1 according to the present embodiment is as described above, supplies the first fluid A to one of the first series passages Ra1, and supplies the second fluid B to one of the second communication passages Rb1. Then, the first fluid A flows into each of the plurality of first flow paths Ra from one of the first series passages Ra1, and the second fluid B flows from the one of the second communication paths Rb1 to the plurality of second flow paths Rb. Flow into each.
そうすると、図17及び図18に示す如く、第一流体Aは、第一流路Ra内でZ軸方向に流通し、第二流体Bは、第二流路Rb内でZ軸方向に流通する。すなわち、第一流体Aは、第一流路Ra内において、Z軸方向における伝熱領域200a,300aの一端側から他端側に向けて流通し、第二流体Bは、第二流路Rb内において、Z軸方向における伝熱領域200b,300bの他端側から一端側に向けて流通する。
Then, as shown in FIGS. 17 and 18, the first fluid A flows in the Z-axis direction in the first flow path Ra, and the second fluid B flows in the Z-axis direction in the second flow path Rb. That is, the first fluid A flows from one end of the heat transfer regions 200a, 300a in the Z-axis direction to the other end in the first flow channel Ra, and the second fluid B flows in the second flow channel Rb. , The heat flows from the other ends of the heat transfer regions 200b and 300b in the Z-axis direction toward one end.
より具体的に説明すると、図19に示す如く、第一流路Ra内で流通する第一流体Aは、伝熱領域200a,300aにある凹部201b,301bに沿って流れ、その凹部201b,301bの含まれる凹凸群201,301の凸部201a,301a(凹部201b,301bと隣り合う凸部201a,301a)に衝突する。その結果、第一流体Aは、凸部201a,301aを乗り超えようとする。
More specifically, as shown in FIG. 19, the first fluid A flowing in the first flow path Ra flows along the concave portions 201b and 301b in the heat transfer regions 200a and 300a, and the first fluid A flows in the concave portions 201b and 301b. It collides with the convex portions 201a and 301a (the convex portions 201a and 301a adjacent to the concave portions 201b and 301b) of the included concave and convex groups 201 and 301. As a result, the first fluid A tries to get over the convex portions 201a and 301a.
そうすると、第一流体Aは、流通していた凹部201b,301bのある伝熱プレート2,3に対する相手方の伝熱プレート2,3側に流れようとする。
Then, the first fluid A tends to flow to the heat transfer plates 2 and 3 of the counterpart with respect to the heat transfer plates 2 and 3 having the concave portions 201 b and 301 b circulated.
本実施形態において、隣り合う伝熱プレート2,3の単一の凸部201a,301a同士が交差衝合し、相手方の伝熱プレート2,3の凸部201a,301aに対して、該凸部201a,301aを含む凹凸群201,301と横並びにある別の凹凸群201,301の凹部201b,301bが横並びで存在する。
In the present embodiment, the single convex portions 201a and 301a of the adjacent heat transfer plates 2 and 3 cross abut with each other, and the convex portions 201a and 301a of the mating heat transfer plates 2 and 3 are opposed to each other. The concavo- convex groups 201 and 301 including 201a and 301a and the concave parts 201b and 301b of another concavo- convex group 201 and 301 are arranged side by side.
そのため、凸部201a,301aに衝突して流通方向を変更した第一流体Aは、相手方の伝熱プレート2,3の凹部201b,301bに乗り移り、該凹部201b,301bに沿って流通する。そして、その凹部201b,301bの含まれる凹凸群201,301の凸部201a,301a(凹部201b,301bと隣り合う凸部201a,301a)に衝突する。これに伴い、第一流体Aは、凸部201a,301aを乗り超えようとし、流通していた凹部201b,301bのある伝熱プレート2,3に対する相手方の伝熱プレート2,3側に流れようとする。
Therefore, the first fluid A, which collides with the convex portions 201a and 301a and changes the flow direction, moves onto the concave portions 201b and 301b of the mating heat transfer plates 2 and 3, and flows along the concave portions 201b and 301b. Then, it collides with the convex portions 201a, 301a (the convex portions 201a, 301a adjacent to the concave portions 201b, 301b) of the concave / convex groups 201, 301 including the concave portions 201b, 301b. Along with this, the first fluid A tries to get over the convex portions 201a and 301a, and flows to the heat transfer plates 2 and 3 of the counterpart with respect to the heat transfer plates 2 and 3 having the concave portions 201b and 301b. And
本実施形態において、隣り合う伝熱プレート2,3の単一の凸部201a,202a,301a,302a同士が中央で交差衝合し、相手方の伝熱プレート2,3の凸部201a,301aに対し、該凸部201a,301aを含む凹凸群201,301と横並びにある別の凹凸群201,301の凹部201b,301bが横並びで存在するため、凸部201a,301aに衝突して流通方向を変更した第一流体Aは、相手方の伝熱プレート2,3の凹部201b,301bに乗り移り、該凹部201b,301bに沿って流通する。
In this embodiment, the single convex portions 201a, 202a, 301a, and 302a of the adjacent heat transfer plates 2 and 3 cross abut with each other at the center, and the convex portions 201a and 301a of the other heat transfer plates 2 and 3 are opposed to each other. On the other hand, since the concavo- convex groups 201 and 301 including the convex portions 201a and 301a and the concave portions 201b and 301b of another concavo- convex group 201 and 301 exist side by side, they collide with the convex portions 201a and 301a and change the flow direction. The changed first fluid A transfers to the concave portions 201b and 301b of the heat transfer plates 2 and 3 of the other party, and flows along the concave portions 201b and 301b.
このように、第一流体Aは、隣り合う伝熱プレート2,3の複数の凹部201b,301b(隣り合う伝熱プレート2,3の傾斜方向を異にした凹部201b,301b)を順々に乗り移りながら下流側に向けて移動する。すなわち、第一流体Aは、螺旋流を作りながら下流側に向けて流通する。これにより、第一流路Ra内において、第一流体Aの流れに乱れが生じる。
As described above, the first fluid A sequentially passes through the plurality of concave portions 201b and 301b of the adjacent heat transfer plates 2 and 3 (the concave portions 201b and 301b in which the inclined directions of the adjacent heat transfer plates 2 and 3 are different). Move toward the downstream side while moving. That is, the first fluid A flows downstream while creating a spiral flow. Thereby, the flow of the first fluid A is disturbed in the first flow path Ra.
特に、本実施形態において、凹凸群201,301(凹凸群201,301の沿う仮想線VL)が縦中心線CL1に対して45°未満で傾斜しているため、第一流体Aが流れる方向の成分を多く含んだ角度で配置される。これにより、第一流体Aが下流側に向けて流通するに当たり、凹部201b,301bに沿って流通し易くなるため、流通抵抗の増加が抑えられる。
In particular, in the present embodiment, since the concavo-convex groups 201 and 301 (the imaginary line VL along the concavo-convex groups 201 and 301) are inclined at less than 45 ° with respect to the vertical center line CL1, the direction in which the first fluid A flows is different. It is arranged at an angle that contains many components. Accordingly, when the first fluid A flows downstream, the first fluid A easily flows along the concave portions 201b and 301b, so that an increase in the flow resistance is suppressed.
本実施形態において、第二流路Rbを画定する主伝熱部20a,30a(第二面S2にある伝熱領域200b,300b)の複数の凹凸群202,302は、第一流路Raを画定する主伝熱部20a,30a(第一面S1にある伝熱領域200a,300a)の複数の凹凸群201,301に対して凹凸関係を逆にした態様であり、単一の凸部201a,301aに対して単一の凸部201a,301aが交差衝合しているため、図20に示す如く、第二流路Rb内で流通する第二流体Bについても、第一流路Ra内で流通する第一流体Aと同様に、螺旋流を作りつつ、下流側に流通する。
In the present embodiment, the plurality of uneven groups 202 and 302 of the main heat transfer portions 20a and 30a (the heat transfer areas 200b and 300b on the second surface S2) that define the second flow path Rb define the first flow path Ra. This is a mode in which the unevenness relationship is reversed with respect to the plurality of unevenness groups 201 and 301 of the main heat transfer portions 20a and 30a (the heat transfer regions 200a and 300a on the first surface S1). Since the single protrusions 201a and 301a are in cross-collision with 301a, as shown in FIG. 20, the second fluid B flowing in the second flow path Rb also flows in the first flow path Ra. Similarly to the first fluid A, the fluid flows downstream while forming a spiral flow.
このように、第一流体Aが第一流路Ra内を流通し、第二流体Bが第二流路Rb内を流通することで、第一流体Aと第二流体Bとは、第一流路Raと第二流路Rbとを区画する主伝熱部20a,30a(伝熱領域200a,200b,300a,300b)を介して熱交換する。そして、図12に示す如く、熱交換を終えた第一流体Aは、第一流路Raから他方の第一連通路Ra2を経て外部に排出され、熱交換を終えた第二流体Bは、第二流路Rbから他方の第二連通路Rb2を経て外部に排出される。
As described above, the first fluid A flows through the first flow channel Ra, and the second fluid B flows through the second flow channel Rb. Heat is exchanged via main heat transfer sections 20a, 30a ( heat transfer areas 200a, 200b, 300a, 300b) that partition Ra and second flow path Rb. Then, as shown in FIG. 12, the first fluid A that has completed the heat exchange is discharged from the first flow path Ra to the outside through the other first series passage Ra2, and the second fluid B that has completed the heat exchange is the second fluid B. It is discharged from the two flow paths Rb to the outside via the other second communication path Rb2.
以上のように、本実施形態に係るプレート式熱交換器1は、X軸方向の両面に伝熱領域200a,200b,300a,300bを含む伝熱プレート2,3であって、それぞれの伝熱領域200a,200b,300a,300bがX軸方向に重ね合わされた複数の伝熱プレート2,3を備え、該複数の伝熱プレート2,3のそれぞれを境にして、第一流体AをX軸方向と直交するZ軸方向に流通させる第一流路Raと、第二流体BをZ軸方向に流通させる第二流路RbとがX軸方向で交互に形成され、伝熱領域200a,200b,300a,300bは、Z軸方向に延びる自身の縦中心線CL1に対して傾斜する方向に長手を有する凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bを含み且つ該凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bが前記傾斜する方向に延びる仮想線VLに沿って交互に並ぶ凹凸群201,202,301,302であって、前記傾斜する方向と直交する方向に並ぶ複数の凹凸群201,202,301,302を有し、該複数の凹凸群201,202,301,302のそれぞれの凸部201a,202a,301a,302aは、前記傾斜する方向と直交する方向で隣り合う凹凸群201,202,301,302の凹部201b,202b,301b,302bに対して横並びに配置されるとともに、前記複数の凹凸群201,202,301,302のそれぞれの凹部201b,202b,301b,302bは、前記傾斜する方向と直交する方向で隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aに対して横並びに配置され、伝熱領域200a,200b,300a,300bを対向させて隣り合う伝熱プレート2,3は、互いの凹凸群201,202,301,302の凸部201a,202a,301a,302a同士を交差衝合させていることを特徴とする。
As described above, the plate heat exchanger 1 according to the present embodiment includes the heat transfer plates 2 and 3 including the heat transfer regions 200a, 200b, 300a, and 300b on both surfaces in the X-axis direction. Regions 200a, 200b, 300a, and 300b are provided with a plurality of heat transfer plates 2 and 3 superposed in the X-axis direction. A first flow path Ra for flowing in the Z-axis direction orthogonal to the direction and a second flow path Rb for flowing the second fluid B in the Z-axis direction are formed alternately in the X-axis direction, and the heat transfer regions 200a, 200b, 300a and 300b include convex portions 201a, 202a, 301a and 302a and concave portions 201b, 202b, 301b and 302b having a length in a direction inclined with respect to the longitudinal center line CL1 extending in the Z-axis direction. The projections 201a, 202a, 301a, 302a and the depressions 201b, 202b, 301b, 302b are irregular groups 201, 202, 301, 302 alternately arranged along a virtual line VL extending in the inclined direction. It has a plurality of concavo- convex groups 201, 202, 301, 302 arranged in a direction orthogonal to the direction of inclination, and each of the convex portions 201a, 202a, 301a, 302a of the plurality of concavo- convex groups 201, 202, 301, 302 The recesses 201b, 202b, 301b, 302b of the concavo- convex groups 201, 202, 301, 302 adjacent in the direction perpendicular to the tilting direction are arranged side by side, and the plurality of concavo- convex groups 201, 202, 301, Each of the recesses 201b, 202b, 301b, 302b of the 302 is orthogonal to the tilting direction. The heat transfer regions 200a, 200b, 300a, 300b are arranged side by side with respect to the protrusions 201a, 202a, 301a, 302a of the concavo- convex groups 201, 202, 301, 302 adjacent in the same direction, and the heat transfer regions 200a, 200b, 300a, 300b face each other. The plates 2 and 3 are characterized in that the protrusions 201a, 202a, 301a and 302a of the concavo- convex groups 201, 202, 301 and 302 are cross-imputed with each other.
上記構成によれば、伝熱プレート2,3(伝熱領域200a,200b,300a,300b)にある複数の凹凸群201,202,301,302の凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bのそれぞれが千鳥状に配置される。すなわち、複数の凸部201a,202a,301a,302aが伝熱領域200a,200b,300a,300b内に千鳥状に配置され、複数の凹部201b,202b,301b,302bが伝熱領域200a,200b,300a,300b内に複数の凸部201a,202a,301a,302aを躱して千鳥状に配置される。
According to the above configuration, the protrusions 201a, 202a, 301a, 302a and the recesses 201b of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer plates 2, 3 ( heat transfer regions 200a, 200b, 300a, 300b). , 202b, 301b, 302b are arranged in a staggered manner. That is, the plurality of convex portions 201a, 202a, 301a, 302a are arranged in a staggered manner in the heat transfer regions 200a, 200b, 300a, 300b, and the plurality of concave portions 201b, 202b, 301b, 302b are formed in the heat transfer regions 200a, 200b, The plurality of protrusions 201a, 202a, 301a, and 302a are arranged in a staggered manner in 300a and 300b.
これにより、第一流体Aは、第一流路RaでZ軸方向に流通するに当たり、第一流路Raを画定する伝熱プレート2,3(伝熱領域200a,300a)にある凹部201b,301bに沿って流れ、該凹部201b,301bの下流側で隣り合う凸部201a,301a(共通の凹凸群201,301の凸部201a,301a)と衝突する。
Accordingly, when the first fluid A flows in the Z-axis direction in the first flow path Ra, the first fluid A is transferred to the concave portions 201b and 301b in the heat transfer plates 2 and 3 ( heat transfer areas 200a and 300a) that define the first flow path Ra. It flows along and collides with the convex portions 201a, 301a adjacent on the downstream side of the concave portions 201b, 301b (the convex portions 201a, 301a of the common concave / convex groups 201, 301).
そうすると、第一流体Aの流れが変わり、第一流体Aは、周辺の凹部201b,301b(例えば、両側の凹凸群201,301の凹部201b,301b、相手方の伝熱プレート2,3の凹凸群201,301の凹部201b,301b)に乗り移って該凹部201b,301bに沿って流れる。このように、第一流体Aは、凹部201b,301bに沿った流れと、凸部201a,301aに対する衝突を繰り返しつつ、下流側に流れる。
Then, the flow of the first fluid A changes, and the first fluid A is filled with the peripheral concave portions 201b and 301b (for example, concave portions 201b and 301b of the concave and convex groups 201 and 301 on both sides, and concave and convex groups of the heat transfer plates 2 and 3 on the other side). 201, 301, and flows along the concave portions 201b, 301b. As described above, the first fluid A flows downstream while repeating the flow along the concave portions 201b and 301b and the collision with the convex portions 201a and 301a.
また、第二流体Bは、第二流路RbでZ軸方向に流通するに当たり、第二流路Rbを画定する伝熱プレート2,3(伝熱領域200b,300b)にある凹部202b,302bに沿って流れ、該凹部202b,302bの下流側で隣り合う凸部202a,302a(共通の凹凸群202,302の凸部202a,302a)と衝突する。
When the second fluid B flows in the Z-axis direction in the second flow path Rb, the concave portions 202b and 302b in the heat transfer plates 2 and 3 ( heat transfer areas 200b and 300b) that define the second flow path Rb. And collides with the adjacent convex portions 202a, 302a on the downstream side of the concave portions 202b, 302b (the convex portions 202a, 302a of the common concave / convex groups 202, 302).
そうすると、第二流体Bの流れが変わり、第二流体Bは、周辺の凹部202b,302b(例えば、両側の凹凸群202,302の凹部202b,302b、相手方の伝熱プレート2,3の凹凸群202,302の凹部202b,302b)に乗り移って該凹部202b,302bに沿って流れる。このように、第二流体Bは、凹部202b,302bに沿った流れと、凸部202a,302aに対する衝突を繰り返しつつ、下流側に流れる。
Then, the flow of the second fluid B is changed, and the second fluid B is filled with the peripheral concave portions 202b and 302b (for example, the concave portions 202b and 302b of the concave and convex groups 202 and 302 on both sides, and the concave and convex groups of the heat transfer plates 2 and 3 on the other side). 202, 302b) and flows along the recesses 202b, 302b. As described above, the second fluid B flows downstream while repeating the flow along the concave portions 202b and 302b and the collision with the convex portions 202a and 302a.
以上のように、第一流体A及び第二流体Bのそれぞれが流路(第一流路Ra又は第二流路Rb)を画定する伝熱領域200a,200b,300a,300bにある凹部201b,202b,301b,302bに沿って流れるため、上記構成のプレート式熱交換器1では、流通抵抗の増大が抑えられる。
As described above, the concave portions 201b, 202b in the heat transfer regions 200a, 200b, 300a, 300b in which the first fluid A and the second fluid B each define a flow path (the first flow path Ra or the second flow path Rb). , 301b, and 302b, the plate-type heat exchanger 1 having the above-described configuration suppresses an increase in flow resistance.
また、第一流体A及び第二流体Bのそれぞれが、凹部201b,202b,301b,302bを含む凹凸群201,202,301,302の凸部201a,202a,301a,302aと衝突するため、上記構成のプレート式熱交換器1では、第一流体A及び第二流体Bのそれぞれの流れに乱れが生じることになり、高い伝熱性能が得られる。
Further, since each of the first fluid A and the second fluid B collides with the convex portions 201a, 202a, 301a, 302a of the concave and convex groups 201, 202, 301, 302 including the concave portions 201b, 202b, 301b, 302b, In the plate heat exchanger 1 having the configuration, the flows of the first fluid A and the second fluid B are disturbed, and high heat transfer performance is obtained.
特に、本実施形態において、伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302の凸部201a,202a,301a,302aのそれぞれは、X軸方向で隣り合う相手方の伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302のうちの一つの凹凸群201,202,301,302の一つの凸部201a,202a,301a,302aと交差衝合している。
In particular, in the present embodiment, each of the protrusions 201a, 202a, 301a, 302a of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the heat transfer plates 2, 3 , One of the uneven groups 201, 202, 301, 302 in the heat transfer areas 200 a, 200 b, 300 a, 300 b of the opposing heat transfer plates 2, 3 adjacent in the X-axis direction. One of the convex portions 201a, 202a, 301a, and 302a of the first and second portions 301 and 302 is cross-imputed.
上記構成によれば、凸部201a,301aに衝突した第一流体Aが該凸部201a,301aを含む凹凸群201,301のある伝熱プレート2,3に対して相手方の伝熱プレート2,3の凹凸群201,301の凹部201b,301bに誘導され、凸部202a,302aに衝突した第二流体Bが該凸部202a,302aを含む凹凸群202,302のある伝熱プレート2,3に対して相手方の伝熱プレート2,3の凹凸群202,302の凹部202b,302bに誘導される。
According to the above configuration, the first fluid A colliding with the protrusions 201a, 301a is applied to the heat transfer plates 2, 3 having the unevenness groups 201, 301 including the protrusions 201a, 301a. The second fluid B guided to the concave portions 201b, 301b of the three concavo- convex groups 201, 301 and colliding with the convex portions 202a, 302a receives the heat transfer plates 2, 3 having the concavo- convex groups 202, 302 including the convex portions 202a, 302a. Is guided to the concave portions 202b and 302b of the concave and convex groups 202 and 302 of the heat transfer plates 2 and 3 on the other side.
具体的に説明すると、共通の伝熱領域200a,200b,300a,300b内にある複数の凹凸群201,202,301,302は、縦中心線CL1に対して傾斜する方向(仮想線VLの延びる方向)に対して直交方向に並ぶため、異なる凹凸群201,202,301,302の凸部201a,202a,301a,302aは、凹凸群201,202,301,302の延びる方向(仮想線VLの延びる方向)に対して直交する方向の異なる位置に配置される。すなわち、異なる凹凸群201,202,301,302の凸部201a,202a,301a,302aは、仮想線VLの延びる方向と直交する方向に間隔をあけて配置される。
More specifically, the plurality of uneven groups 201, 202, 301, and 302 in the common heat transfer regions 200a, 200b, 300a, and 300b are inclined in the direction inclined with respect to the vertical center line CL1 (the virtual line VL extends). Direction), the projections 201a, 202a, 301a, 302a of the different concavo- convex groups 201, 202, 301, 302 extend in the direction in which the concavo- convex groups 201, 202, 301, 302 extend (the virtual line VL). (Extending direction). That is, the convex portions 201a, 202a, 301a, and 302a of the different concavo- convex groups 201, 202, 301, and 302 are arranged at intervals in a direction orthogonal to the direction in which the virtual line VL extends.
これに伴い、凹凸群201,202,301,302に含まれる凸部201a,202a,301a,302aのそれぞれには、相手方の伝熱プレート2,3の異なる凹凸群201,202,301,302の一つの凸部201a,202a,301a,302aが交差する。これに伴い、隣り合う伝熱プレート2,3の凸部201a,202a,301a,302a同士は交差衝合し、隣り合う伝熱プレート2,3の凹部201b,202b,301b,302b同士は間隔をあけた状態で交差する。
Accordingly, each of the protrusions 201a, 202a, 301a, and 302a included in the concavo- convex groups 201, 202, 301, and 302 has a different concavo- convex group 201, 202, 301, and 302 of the other heat transfer plates 2 and 3 respectively. One convex part 201a, 202a, 301a, 302a crosses. Accordingly, the convex portions 201a, 202a, 301a, and 302a of the adjacent heat transfer plates 2 and 3 cross abut with each other, and the concave portions 201b, 202b, 301b, and 302b of the adjacent heat transfer plates 2 and 3 form an interval. Cross in the open state.
これにより、凹部201b,301bに沿って流れる第一流体Aが凸部201a,301aに衝突することで流れを変えようとすると、相手方の伝熱プレート2,3の凹部201b,301b(第一流体Aが衝突する凸部201a,301aと横並びの凹部201b,301bと交差する凹部201b,301b)に入り込み、該相手方の伝熱プレート2,3の凹部201b,301bに沿って流れる。
Thus, when the first fluid A flowing along the concave portions 201b and 301b collides with the convex portions 201a and 301a to change the flow, the concave portions 201b and 301b (first fluid A enters the recesses 201b, 301b intersecting the recesses 201b, 301b that are side by side with the bumps 201a, 301a that collide, and flows along the recesses 201b, 301b of the heat transfer plates 2, 3 of the other party.
そして、相手方の伝熱プレート2,3の凹部201b,301bに沿って流れる第一流体Aが該相手方の伝熱プレート2,3の凸部201a,301aに衝突することで流れを変えようとすると、元の伝熱プレート2,3の凹部201b,301b(第一流体Aが衝突する凸部201a,301aと横並びの凹部201b,301bと交差する凹部201b,301b)に入り込み、該元の伝熱プレート2,3の凹部201b,301bに沿って流れる。このように、第一流体Aは、隣り合う伝熱プレート2,3の凹部201b,301bを順々に乗り移りつつ下流側に流れる。
When the first fluid A flowing along the concave portions 201b and 301b of the mating heat transfer plates 2 and 3 collides with the convex portions 201a and 301a of the mating heat transfer plates 2 and 3 to change the flow. Into the concave portions 201b and 301b of the original heat transfer plates 2 and 3 (the concave portions 201b and 301b intersecting with the concave portions 201b and 301b arranged side by side with the convex portions 201a and 301a with which the first fluid A collides). It flows along the concave portions 201b and 301b of the plates 2 and 3. As described above, the first fluid A flows downstream while sequentially moving through the concave portions 201b and 301b of the adjacent heat transfer plates 2 and 3.
そして、本実施形態に係るプレート式熱交換器1において、凹凸群201,202,301,302(凸部201a,202a,301a,302a、凹部201b,202b,301b,302b)は、Z軸方向に延びる(第一流体Aの流れ方向に延びる)縦中心線CL1に対して傾斜した仮想線VLに沿っている(凹部201b,301bが傾斜方向に長手をなす)ため、上述の如く、第一流体Aが隣り合う伝熱プレート2,3の凹部201b,301bを順々に乗り移りつつ下流側に流れることで、第一流体Aの流れが螺旋流になる。この流れ(螺旋流)は、第二流体Bも同様である。
In the plate heat exchanger 1 according to the present embodiment, the concavo- convex groups 201, 202, 301, 302 (the convex portions 201a, 202a, 301a, 302a, the concave portions 201b, 202b, 301b, 302b) are arranged in the Z-axis direction. As described above, the first fluid extends along the imaginary line VL that is inclined with respect to the longitudinal center line CL1 that extends (extends in the flow direction of the first fluid A) (the concave portions 201b and 301b are elongated in the inclined direction). The first fluid A flows spirally as A flows downstream while sequentially moving through the concave portions 201b and 301b of the adjacent heat transfer plates 2 and 3. This flow (spiral flow) is the same for the second fluid B.
このように、第一流路Raに第一流体Aが凹部201b,301bを流れる機会があり、第二流路Rbに第二流体Bが凹部202b,302bを流れる機会があるため、それぞれの流路で流通抵抗が高くなることが抑制される。また、第一流路Ra内で第一流体Aが螺旋流を作り、第二流路Rb内で第二流体Bが螺旋流を作ることで、第一流体A及び第二流体Bのそれぞれの流れにさらなる乱れが生じる結果、伝熱プレート2,3(伝熱領域200a,200b,300a,300b)を介しての第一流体Aと第二流体Bとの熱交換性能(伝熱性能)が高くなる。
As described above, there is an opportunity for the first fluid A to flow through the recesses 201b and 301b in the first channel Ra, and there is an opportunity for the second fluid B to flow in the recesses 202b and 302b in the second channel Rb. This suppresses the increase in flow resistance. In addition, the first fluid A creates a spiral flow in the first flow path Ra, and the second fluid B creates a spiral flow in the second flow path Rb. As a result, the heat exchange performance (heat transfer performance) between the first fluid A and the second fluid B via the heat transfer plates 2 and 3 ( heat transfer regions 200a, 200b, 300a and 300b) is high. Become.
さらに、本実施形態に係るプレート式熱交換器1は、第一流路Ra内で第一流体Aが螺旋流を作り、第二流路Rb内で第二流体Bが螺旋流を作ることで、第一流体A及び第二流体Bのそれぞれの流れにさらなる乱れが生じるため、この流れの乱れによって混合機能を発揮する。
Further, in the plate heat exchanger 1 according to the present embodiment, the first fluid A creates a spiral flow in the first flow path Ra, and the second fluid B creates a spiral flow in the second flow path Rb. Since the respective flows of the first fluid A and the second fluid B are further turbulent, the turbulence of the flows exerts a mixing function.
これにより、本実施形態に係るプレート式熱交換器1は、第一流体A又は第二流体Bの少なくとも何れか一方に含まれる成分が流通過程で分離することを防止できる。
Thereby, the plate heat exchanger 1 according to the present embodiment can prevent components contained in at least one of the first fluid A and the second fluid B from being separated in the flow process.
また、本実施形態に係るプレート式熱交換器1は、第一流路Ra又は第二流路Rbの何れか一方に対し、二種類以上の液体を合わせた流体、或いは一種類以上の液体と粉体とを合わせた流体を第一流体A又は第二流体Bとして流通させることで、第一流体A又は第二流体Bを構成する二種類以上の液体、或いは一種類以上の液体と粉体とを混合させる(ミキシングする)ことができる。
In addition, the plate heat exchanger 1 according to the present embodiment is configured such that a fluid in which two or more types of liquids are combined or one or more types of liquids and powders are supplied to one of the first channel Ra and the second channel Rb. By flowing the fluid combined with the body as the first fluid A or the second fluid B, two or more types of liquid constituting the first fluid A or the second fluid B, or one or more types of liquid and powder Can be mixed (mixed).
従って、本実施形態に係るプレート式熱交換器1は、第一流体A又は第二流体Bの何れか一方に含まれる複数の成分を混合させる混合器(ミキサー)として機能することもできる。すなわち、本実施形態に係るプレート式熱交換器1は、第一流体A又は第二流体Bの何れか一方に含まれる複数の成分を混合させつつ、第一流体Aと第二流体Bとを熱交換させる(第一流体A又は第二流体Bの何れか一方を加熱又は冷却させる)ことで、第一流体A又は第二流体Bの何れか一方に含まれる成分同士を反応させる反応器として機能する。
Therefore, the plate heat exchanger 1 according to the present embodiment can also function as a mixer that mixes a plurality of components contained in either the first fluid A or the second fluid B. That is, the plate heat exchanger 1 according to the present embodiment mixes the first fluid A and the second fluid B while mixing a plurality of components contained in either the first fluid A or the second fluid B. By performing heat exchange (heating or cooling either the first fluid A or the second fluid B), the reactor contained in the first fluid A or the second fluid B reacts with each other. Function.
また、本実施形態において、凹凸群201,202,301,302の配置の基準となる仮想線VLは、Z軸方向に延びる縦中心線CL1に対して45°未満の角度で傾斜しているため、凹凸群201,202,301,302に含まれる凹部201b,202b,301b,302bの長手に延びる方向の成分に、第一流体A及び第二流体Bの流れ方向の成分の方が該流れ方向と直交する方向の成分よりも多く含まれる。
In the present embodiment, the virtual line VL, which is a reference for the arrangement of the concavo- convex groups 201, 202, 301, and 302, is inclined at an angle of less than 45 ° with respect to the vertical center line CL1 extending in the Z-axis direction. The components in the direction extending in the longitudinal direction of the concave portions 201b, 202b, 301b, and 302b included in the concave and convex groups 201, 202, 301, and 302 are the component of the flow direction of the first fluid A and the second fluid B in the flow direction. Is included more than the component in the direction orthogonal to.
これにより、第一流路Raで第一流体Aが流れ易く、第二流路Rbで第二流体Bが流れ易くなる。すなわち、第一流路Ra及び第二流路Rbのそれぞれにおいて、流通抵抗が高くなることが抑制される。
This facilitates the flow of the first fluid A in the first flow path Ra and the flow of the second fluid B in the second flow path Rb. That is, in each of the first flow path Ra and the second flow path Rb, an increase in flow resistance is suppressed.
このように、本実施形態に係るプレート式熱交換器1によれば、流体の流通抵抗の増加を抑えつつ、高い伝熱性能を得ることができるという優れた効果を奏し得る。
As described above, according to the plate heat exchanger 1 according to the present embodiment, an excellent effect that high heat transfer performance can be obtained while suppressing an increase in fluid flow resistance can be achieved.
なお、本発明は、上記各実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更を加え得ることは勿論である。
Note that the present invention is not limited to the above embodiments, and it is needless to say that modifications can be appropriately made without departing from the gist of the present invention.
上記各実施形態において、第一方向に重ね合わされた複数の伝熱プレート2,3同士がロウ付けされ、伝熱プレート2,3間が液密にシールされたが、これに限定されない。例えば、隣り合う伝熱プレート2,3間に流路を画定する環状のガスケットが配置され、該ガスケットによって伝熱プレート2,3間がシールされてもよい。
In each of the above embodiments, the plurality of heat transfer plates 2 and 3 stacked in the first direction are brazed to each other, and the space between the heat transfer plates 2 and 3 is sealed in a liquid-tight manner. However, the present invention is not limited to this. For example, an annular gasket that defines a flow path between adjacent heat transfer plates 2 and 3 may be arranged, and the heat transfer plates 2 and 3 may be sealed by the gasket.
上記各実施形態において、プレート式熱交換器1が凹凸群201,202,301,302の凹凸の位置を異にする二種類の伝熱プレート2,3を含み、この二種類の伝熱プレート2,3(第一伝熱プレート2、第二伝熱プレート3)が交互に重ね合わされたが、これに限定されない。
In each of the above embodiments, the plate heat exchanger 1 includes two types of heat transfer plates 2 and 3 in which the positions of the concavities and convexities of the concavo- convex groups 201, 202, 301, and 302 are different. , 3 (first heat transfer plate 2, second heat transfer plate 3) are alternately superposed, but the present invention is not limited to this.
例えば、伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302の凸部201a,202a,301a,302aのそれぞれが、第一方向で隣り合う相手方の伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302のうちの少なくとも二つの凹凸群201,202,301,302の凸部201a,202a,301a,302aと交差衝合する、或いは、伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302の凸部201a,202a,301a,302aのそれぞれが第一方向で隣り合う相手方の伝熱プレート2,3の伝熱領域200a,200b,300a,300bにある複数の凹凸群201,202,301,302のうちの一つの凹凸群201,202,301,302の一つの凸部201a,202a,301a,302aと交差衝合するように、伝熱プレート2,3の凹凸群201,202,301,302の凹凸の位置や、サイズ(長さ、幅)、間隔(ピッチ)等が設定されることを前提に、同一の伝熱プレート2,3(共通の伝熱プレート2,3)がX軸方向で重ね合わせられてもよい。
For example, each of the projections 201a, 202a, 301a, and 302a of the plurality of uneven groups 201, 202, 301, and 302 in the heat transfer regions 200a, 200b, 300a, and 300b of the heat transfer plates 2 and 3 is arranged in the first direction. At least two of the uneven groups 201, 202, 301, 302 of the plurality of uneven groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the adjacent heat transfer plates 2, 3 adjacent to each other. Cross-impact with the convex portions 201a, 202a, 301a, 302a, or the convex portions of the plurality of concave and convex groups 201, 202, 301, 302 in the heat transfer regions 200a, 200b, 300a, 300b of the heat transfer plates 2, 3. Each of 201a, 202a, 301a, and 302a is adjacent to each other in the first direction. Intersects with one convex portion 201a, 202a, 301a, 302a of one of the uneven groups 201, 202, 301, 302 of the plurality of uneven groups 201, 202, 301, 302 in the thermal regions 200a, 200b, 300a, 300b. Assuming that the position, size (length, width), interval (pitch), and the like of the unevenness of the unevenness groups 201, 202, 301, and 302 of the heat transfer plates 2 and 3 are set so as to abut each other. The same heat transfer plates 2 and 3 (common heat transfer plates 2 and 3) may be overlapped in the X-axis direction.
なお、この場合において、上記各実施形態と同様に、複数の伝熱プレート2,3同士がロウ付けされる場合には、各伝熱プレート2,3が環状部21,31を含むため、X軸方向で一つおきに伝熱プレート2,3がX軸方向に延びる仮想線を中心にして180°回転させて配置される。これに対し、隣り合う伝熱プレート2,3間に流路を画定する環状のガスケットが配置され、該ガスケットによって伝熱プレート2,3間がシールされる場合には、伝熱プレート2,3が環状部21,31を含まないため、X軸方向で一つおきに伝熱プレート2,3がX軸方向に延びる仮想線を中心にして180°回転、或いは、縦中心線CL1又は横中心線CL2を基準(中心)にして180°反転させて配置される。
In this case, as in the above embodiments, when the plurality of heat transfer plates 2 and 3 are brazed to each other, since each heat transfer plate 2 and 3 includes the annular portions 21 and 31, X The heat transfer plates 2 and 3 are arranged by rotating every 180 degrees around an imaginary line extending in the X-axis direction in the axial direction. On the other hand, when an annular gasket that defines a flow path is arranged between the adjacent heat transfer plates 2 and 3 and the heat transfer plates 2 and 3 are sealed by the gasket, the heat transfer plates 2 and 3 Does not include the annular portions 21 and 31, the heat transfer plates 2 and 3 are alternately rotated by 180 ° about an imaginary line extending in the X-axis direction in the X-axis direction, or the vertical center line CL1 or the horizontal center. It is arranged to be inverted by 180 ° with reference to the line CL2 (center).
上記各実施形態において、伝熱プレート2,3の凹凸群201,202,301,302に含まれる凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bのそれぞれがZ軸方向に延びる縦中心線CL1に対して45°未満の傾斜角度で傾斜する仮想線VLに沿って延びたが、これに限定されない。
In each of the above embodiments, each of the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b included in the concave and convex groups 201, 202, 301, 302 of the heat transfer plates 2, 3 is arranged in the Z-axis direction. Although extending along the imaginary line VL inclined at an inclination angle of less than 45 ° with respect to the extending vertical center line CL1, the present invention is not limited to this.
例えば、伝熱プレート2,3の凹凸群201,202,301,302に含まれる凸部201a,202a,301a,302a及び凹部201b,202b,301b,302bのそれぞれがZ軸方向に延びる縦中心線CL1に対して45°以上の傾斜角度で傾斜する仮想線VLに沿って延びてもよい。但し、仮想線VLは、Z軸方向に延びる縦中心線CL1に対して傾斜していなければならないため、仮想線VLは、Z軸方向に延びる縦中心線CL1に対して90°未満で傾斜しなければならないことは言うまでもない。
For example, each of the convex portions 201a, 202a, 301a, 302a and the concave portions 201b, 202b, 301b, 302b included in the concavo- convex groups 201, 202, 301, 302 of the heat transfer plates 2, 3 has a vertical center line extending in the Z-axis direction. It may extend along an imaginary line VL inclined at an inclination angle of 45 ° or more with respect to CL1. However, since the virtual line VL must be inclined with respect to the vertical center line CL1 extending in the Z-axis direction, the virtual line VL is inclined by less than 90 ° with respect to the vertical center line CL1 extending in the Z-axis direction. Needless to say, this must be done.
上記各実施形態において、複数の凹凸群201,202,301,302のそれぞれの凸部201a,202a,301a,302aが隣り合う凹凸群201,202,301,302の凹部201b,202b,301b,302bとY軸方向で横並びに配置され、複数の凹凸群201,202,301,302のそれぞれの凹部201b,202b,301b,302bが隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aとY軸方向で横並びに配置されたが、これに限定されない。
In each of the above-described embodiments, the concave portions 201b, 202b, 301b, and 302b of the concave and convex groups 201, 202, 301, and 302 in which the convex portions 201a, 202a, 301a, and 302a of the plural concave and convex groups 201, 202, 301, and 302 are adjacent. Are arranged side by side in the Y-axis direction, and the concave portions 201b, 202b, 301b, 302b of the plurality of concave and convex groups 201, 202, 301, 302 are adjacent to the convex portions 201a, 202a of the concave and convex groups 201, 202, 301, 302. , 301a, and 302a are arranged side by side in the Y-axis direction, but are not limited thereto.
例えば、複数の凹凸群201,202,301,302のそれぞれの凸部201a,202a,301a,302aが隣り合う凹凸群201,202,301,302の凹部201b,202b,301b,302bと傾斜方向に対して直交方向(Y軸方向及びZ軸方向の合成方向)で横並びに配置され、複数の凹凸群201,202,301,302のそれぞれの凹部201b,202b,301b,302bが隣り合う凹凸群201,202,301,302の凸部201a,202a,301a,302aと傾斜方向に対して直交方向(Y軸方向及びZ軸方向の合成方向)で横並びに配置されてもよい。
For example, the convex portions 201a, 202a, 301a, and 302a of the plurality of concavo- convex groups 201, 202, 301, and 302 are inclined with the concave portions 201b, 202b, 301b, and 302b of the adjacent concavo- convex groups 201, 202, 301, and 302, respectively. The concavo-convex group 201 is arranged side by side in the orthogonal direction (the combined direction of the Y-axis direction and the Z-axis direction), and the concave portions 201b, 202b, 301b, and 302b of the plural concavo- convex groups 201, 202, 301, and 302 are adjacent to each other. , 202, 301, 302 may be arranged side by side in a direction orthogonal to the inclination direction with respect to the projections 201a, 202a, 301a, 302a (the combined direction of the Y-axis direction and the Z-axis direction).
上記第二実施形態において、凹凸群201,202,301,302の凹部201b,202b,301b,302b及び凸部201a,202a,301a,302aが、仮想線VLに沿って真っ直ぐに延びたが、これに限定されない。例えば、図21及び図22に示す如く、第一流体A及び第二流体Bの螺旋流の連続性を向上させるべく、凹部201b,202b,301b,302b及び凸部201a,202a,301a,302aのそれぞれがX軸方向から見て湾曲形状(S字状又は逆S字状)に形成されてもよい。
In the second embodiment, the concave portions 201b, 202b, 301b, 302b and the convex portions 201a, 202a, 301a, 302a of the concave and convex groups 201, 202, 301, 302 extend straight along the virtual line VL. It is not limited to. For example, as shown in FIGS. 21 and 22, in order to improve the continuity of the spiral flow of the first fluid A and the second fluid B, the concave portions 201b, 202b, 301b, 302b and the convex portions 201a, 202a, 301a, 302a are formed. Each may be formed in a curved shape (S-shape or inverted S-shape) when viewed from the X-axis direction.
上記各実施形態において、特に言及しなかったが、上述の如く、プレート式熱交換器1を混合器(ミキサー)として機能させる場合、一方の第一連通路Ra1又は一方の第二連通路Rb1に対して、混合の対象となる二種類以上の液体を合わせた流体、或いは一種類以上の液体と粉体とを合わせた流体を第一流体A又は第二流体Bとして供給してもよい。また、流体の供給元となる一方の第一連通路Ra1又は一方の第二連通路Rb1の何れか一方を二つ以上設け、これらのそれぞれに混合の対象となる液体等を供給し、第一流路Ra又は第二流路Rbで合流させ、第一流路Ra又は第二流路Rbの一方で第一流体A又は第二流体Bとして流通させるようにしてもよい。
Although not particularly mentioned in each of the above embodiments, as described above, when the plate heat exchanger 1 is caused to function as a mixer, the plate heat exchanger 1 may be connected to one of the first series passages Ra1 or one of the second communication passages Rb1. On the other hand, a fluid in which two or more kinds of liquids to be mixed are combined, or a fluid in which one or more kinds of liquids and powder are combined may be supplied as the first fluid A or the second fluid B. In addition, two or more of one of the first series passages Ra1 or the one second communication passage Rb1 as a supply source of the fluid are provided, and a liquid or the like to be mixed is supplied to each of them. You may make it join in the path | route Ra or the 2nd flow path Rb, and let it flow as the 1st fluid A or the 2nd fluid B in either the 1st flow path Ra or the 2nd flow path Rb.
1…プレート式熱交換器、2…第一伝熱プレート(伝熱プレート)、3…第二伝熱プレート(伝熱プレート)、20,30…伝熱部、20a,30a…主伝熱部、20b,30b…端部、21,31…環状部、200a,200b,300a,300b…伝熱領域、201,202,301,302…凹凸群、201a,202a,301a,302a…凸部、201b,202b,301b,302b…凹部、203,204,303,304…貫通孔、A…第一流体、B…第二流体、CL1…縦中心線(中心線)、CL2…横中心線(中心線)、Ra…第一流路、Ra1,Ra2…第一連通路、Rb…第二流路、Rb1,Rb2…第二連通路、S1…第一面、S2…第二面、VL…仮想線、θ1…傾斜角度、θ2…傾斜角度
DESCRIPTION OF SYMBOLS 1 ... Plate type heat exchanger, 2 ... 1st heat transfer plate (heat transfer plate), 3 ... 2nd heat transfer plate (heat transfer plate), 20, 30 ... Heat transfer part, 20a, 30a ... Main heat transfer part .., 20b, 30b end portions, 21, 31 annular portions, 200a, 200b, 300a, 300b heat transfer regions, 201, 202, 301, 302 uneven portions, 201a, 202a, 301a, 302a convex portions, 201b , 202b, 301b, 302b: recess, 203, 204, 303, 304: through hole, A: first fluid, B: second fluid, CL1: vertical center line (center line), CL2: horizontal center line (center line) ), Ra: first flow path, Ra1, Ra2: first communication path, Rb: second flow path, Rb1, Rb2: second communication path, S1: first surface, S2: second surface, VL: virtual line, θ1 ... inclination angle, θ2 ... inclination angle
Claims (4)
- 第一方向の両面に伝熱領域を含む伝熱プレートであって、それぞれの伝熱領域が第一方向に重ね合わされた複数の伝熱プレートを備え、該複数の伝熱プレートのそれぞれを境にして、第一流体を第一方向と直交する第二方向に流通させる第一流路と、第二流体を第二方向に流通させる第二流路とが第一方向で交互に形成され、伝熱領域は、第二方向に延びる自身の中心線に対して傾斜する方向に長手を有する凸部及び凹部を含み且つ該凸部及び凹部が前記傾斜する方向に延びる仮想線に沿って交互に並ぶ凹凸群であって、前記傾斜する方向と直交する方向に並ぶ複数の凹凸群を有し、該複数の凹凸群のそれぞれの凸部は、前記傾斜する方向と直交する方向で隣り合う凹凸群の凹部に対して横並びに配置されるとともに、前記複数の凹凸群のそれぞれの凹部は、前記傾斜する方向と直交する方向で隣り合う凹凸群の凸部に対して横並びに配置され、伝熱領域を対向させて隣り合う伝熱プレートは、互いの凹凸群の凸部同士を交差衝合させていることを特徴とするプレート式熱交換器。 A heat transfer plate including heat transfer regions on both surfaces in the first direction, wherein each heat transfer region includes a plurality of heat transfer plates superimposed in the first direction, with each of the plurality of heat transfer plates as a boundary. Thus, a first flow path for flowing the first fluid in a second direction orthogonal to the first direction and a second flow path for flowing the second fluid in the second direction are formed alternately in the first direction, and heat transfer is performed. The region includes protrusions and recesses having a length in a direction inclined with respect to its own center line extending in the second direction, and the protrusions and recesses are arranged alternately along a virtual line extending in the inclination direction. A plurality of concavo-convex groups arranged in a direction perpendicular to the tilting direction, and each convex portion of the plurality of concavo-convex groups is a concave portion of a concavo-convex group adjacent in a direction perpendicular to the tilting direction. Are arranged side by side with respect to each other, Each concave portion is arranged side by side with respect to the convex portion of the concavo-convex group adjacent in the direction orthogonal to the inclined direction, and the heat transfer plate adjacent to the heat transfer region facing the heat transfer region is formed of the concavo-convex group of each other. A plate-type heat exchanger characterized in that convex portions are cross-butted with each other.
- 伝熱プレートの伝熱領域にある複数の凹凸群の凸部のそれぞれは、第一方向で隣り合う相手方の伝熱プレートの伝熱領域にある複数の凹凸群のうちの少なくとも二つの凹凸群の凸部と交差衝合している請求項1に記載のプレート式熱交換器。 Each of the protrusions of the plurality of unevenness groups in the heat transfer area of the heat transfer plate is at least two of the unevenness groups of the plurality of unevenness groups in the heat transfer area of the opposing heat transfer plate in the first direction. The plate heat exchanger according to claim 1, wherein the plate heat exchanger cross-impacts with the projection.
- 伝熱プレートの伝熱領域にある複数の凹凸群の凸部のそれぞれは、第一方向で隣り合う相手方の伝熱プレートの伝熱領域にある複数の凹凸群のうちの一つの凹凸群の一つの凸部と交差衝合している請求項1に記載のプレート式熱交換器。 Each of the protrusions of the plurality of unevenness groups in the heat transfer area of the heat transfer plate is one of the unevenness groups of the plurality of unevenness groups in the heat transfer area of the adjacent heat transfer plate in the first direction. The plate heat exchanger according to claim 1, wherein the plate heat exchanger is cross-imputed with the two convex portions.
- 凹凸群の配置の基準となる仮想線は、第二方向に延びる中心線に対して45°未満の角度で傾斜している請求項1乃至3の何れか1項に記載のプレート式熱交換器。 The plate heat exchanger according to any one of claims 1 to 3, wherein a virtual line serving as a reference for the arrangement of the unevenness group is inclined at an angle of less than 45 ° with respect to a center line extending in the second direction. .
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WO2023079608A1 (en) * | 2021-11-04 | 2023-05-11 | 三菱電機株式会社 | Heat sink and method for manufacturing heat sink |
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