CN211717233U

CN211717233U - Enclosed heat exchanger

Info

Publication number: CN211717233U
Application number: CN202020344135.0U
Authority: CN
Inventors: 王孝红; 繆伟; 钱杰; 颜文娇
Original assignee: WUXI GUANYUN HEAT EXCHANGER CO Ltd
Current assignee: WUXI GUANYUN HEAT EXCHANGER CO Ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-10-20
Anticipated expiration: 2030-03-18

Abstract

The utility model relates to the field of plate-fin heat exchangers, in particular to a surrounding heat exchanger, which comprises a core body; the surface of core separates the core for inside passage and outside passageway, and inside passage is used for circulating first medium, and outside passageway is used for circulating the second medium, and the core setting is in the vertical direction, and inside passage includes the multistage diversion passageway, and first medium forms diversion flow state between vertical direction and horizontal direction through arbitrary section diversion passageway respectively, and outside passageway link up the core in the horizontal direction. Changing the flow direction of the second medium penetrating through the core to enable the second medium to be in surrounding contact with the surface of the core relative to the surface of the core; the utility model provides an enclosed heat exchanger can form the technological effect of the flow pressure of balanced second medium to make the second medium for the utility model provides an enclosed heat exchanger's flow pressure is more even.

Description

Enclosed heat exchanger

Technical Field

The utility model relates to a plate-fin heat exchanger field specifically is an enclosed heat exchanger.

Background

Plate-fin heat exchangers, which are typically fabricated in flat plate form, are brazed using spacers, seals and fins. The first medium flows in the plate-fin heat exchanger; one surface of the plate-fin heat exchanger, which is contacted with the second medium firstly, is a near-end surface, the other surface of the second medium discharged from the plate-fin heat exchanger is a far-end surface, and the second medium penetrates through the plate-fin heat exchanger in a penetrating state, so that the first medium and the second medium form a heat exchange state through the plate-fin heat exchanger.

In the plate-fin heat exchanger in the prior art, because the area of the near-end face is large, when a second medium passes through the near-end face, the second medium is in a diffusion state from the center to the periphery on the near-end face, and the pressure of the second medium relative to any point of the near-end face is uneven, so that the technical problem of uneven heat dissipation efficiency of the plate-fin heat exchanger in the prior art is caused.

SUMMERY OF THE UTILITY MODEL

For solving the plate-fin heat exchanger among the prior art, because the area of near-end terminal surface is bigger for the second medium passes near-end terminal surface, the second medium is center to diffusion state all around on near-end terminal surface, and the second medium is inhomogeneous for the pressure of any point of near-end terminal surface, thereby has caused the inhomogeneous technical problem of radiating efficiency of plate-fin heat exchanger among the prior art, the utility model provides an enclosure heat exchanger.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

according to one aspect of the present invention, there is provided a wrap-around heat exchanger, comprising a core; the surface of the core body divides the core body into an inner channel and an outer channel, the inner channel is used for circulating a first medium, the outer channel is used for circulating a second medium, and the first medium and the second medium form a heat exchange state through the core body; the core body is arranged in the vertical direction, the inner channel comprises a plurality of sections of turning channels, the first medium forms a turning flowing state between the vertical direction and the horizontal direction through any section of the turning channel respectively, the outer channel penetrates through the core body in the horizontal direction, and the outer channel penetrates out of the core body at the upper part or the lower part of the core body.

Further, the device also comprises a shell; the shell covers the outside of the core, wherein the core is covered by the shell in the horizontal direction, and the upper part or the lower part of the core is covered by the shell; the external passage penetrates the housing, wherein the external passage penetrates the housing in a lower-to-upper direction of the housing or in an upper-to-lower direction of the housing.

Further, the core body is cylindrical; the outer channel penetrates through the core body in the radial direction of the core body, wherein the outer channel penetrates out of the upper portion or the lower portion of the core body in the axial direction of the core body.

Further, the core comprises a plurality of baffles and a plurality of seals; any one of the partition plates is circular; any one seal is respectively provided with a first annular part, a second annular part, a first connecting part and a second connecting part, wherein the diameter of the first annular part is smaller than that of the second annular part, the first annular part and the second annular part are arranged in a concentric state, and the first connecting part and the second connecting part are respectively used for connecting the first annular part and the second annular part; the plurality of partition plates are parallel to each other, and the centers of the plurality of partition plates are respectively arranged on the same axis, wherein the axis is parallel to the vertical direction; two adjacent baffles and one seal are arranged into a layer of assembly, and multiple layers of assemblies are arranged into intervals along the vertical direction, wherein one seal is arranged between the two baffles, and the radial surface of one layer of assembly is in a sealing state.

Furthermore, two through holes are respectively formed in any one of the partition plates; the two partition plates of any one of the combinations are respectively an upper partition plate and a lower partition plate, the two through holes of the upper partition plate are respectively an upper injection hole and an upper discharge hole, the two through holes of the lower partition plate are respectively a lower injection hole and a lower discharge hole, the upper injection hole and the lower injection hole are respectively positioned on two sides of the first connecting part, and the upper discharge hole and the lower discharge hole are respectively positioned on two sides of the second connecting part; the inner cavity of the assembly is divided into two cavities by the first connecting part and the second connecting part, the two cavities are respectively an injection cavity and a discharge cavity, the upper injection hole and the lower injection hole are respectively communicated with the injection cavity, the upper discharge hole and the lower discharge hole are respectively communicated with the discharge cavity, and the injection cavity and the discharge cavity are mutually isolated.

Further, a plurality of fins are arranged on the seal, wherein any one of the fins is arranged on the first annular part and/or the second annular part respectively, and any one of the fins is arranged outside the surface of the combined body respectively.

Further, the core further comprises a plurality of fin members; one fin part is arranged between the two adjacent layer combinations; any one of the fin members is provided with a plurality of flow channels, each of the flow channels penetrates the core body in the horizontal direction, and each of the flow channels is a part of the external passage.

Further, the fin part includes a plurality of fins, a first heat-conducting plate, a second heat-conducting plate, a first guide pipe and a second guide pipe; a first opening is formed in the center of the first heat conduction plate, and a second opening is formed in the center of the second heat conduction plate; the first heat conduction plate is arranged in the horizontal direction, the second heat conduction plate is arranged above or below the first heat conduction plate, a space is reserved between the first heat conduction plate and the second heat conduction plate, and the first opening and the second opening are in a through state in the vertical direction; the first guide pipe and the second guide pipe are respectively arranged between the first heat-conducting plate and the second heat-conducting plate and respectively penetrate through the first heat-conducting plate and the second heat-conducting plate; the fins are radially arranged between the first heat conduction plate and the second heat conduction plate respectively, and intervals are reserved at two ends of every two adjacent fins respectively.

Further, any one of the fins is accommodated between two adjacent combinations; wherein any one of the fins protrudes from the combined body in a radial direction of the combined body; alternatively, any of the fins is disposed within a horizontal profile of the assembly in a radial direction of the assembly.

Furthermore, one of the multi-layer combined bodies is a first combined body, one partition plate of the first combined body is a positioning partition plate, and the positioning partition plate is attached to the shell in a surface shape, wherein two guide holes penetrating through the shell are formed in the shell, and the two guide holes are respectively communicated with the two through holes of the positioning partition plate in the vertical direction; and the other assembly in the multi-layer assemblies is a second assembly, one partition plate of the second assembly is a closed partition plate, wherein the distance from the closed partition plate to the positioning partition plate is greater than the distance from any other partition plate to the positioning partition plate, and the closed partition plate is a blind plate.

The technical scheme has the following advantages or beneficial effects:

the utility model provides a surrounding type heat exchanger, through changing the flow direction that the second medium pierces through the core, make the second medium present the surrounding type to contact the surface of core for the surface of core; compared with the prior art, the second medium is center to diffusion state's all around contact mode on prior art's the near-end terminal surface of heat exchanger, the utility model provides an enclosed heat exchanger can form the technological effect of the flow pressure of balanced second medium, thereby make the second medium for the enclosed heat exchanger's flow pressure is more even, has solved the plate fin heat exchanger among the prior art, because the area of near-end terminal surface is bigger, makes the second medium pass when the near-end terminal surface, and the second medium is center to diffusion state all around on the near-end terminal surface, and the second medium is inhomogeneous for the pressure of any point of near-end terminal surface, thereby has caused the inhomogeneous technical problem of the radiating efficiency of plate fin heat exchanger among the prior art.

Drawings

Fig. 1 is a schematic structural diagram of a core provided in an embodiment of the present invention;

fig. 2 is another schematic structural diagram of the core provided in the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a core provided in an embodiment of the present invention;

fig. 4 is a schematic overall structural diagram of a partition and a seal provided in an embodiment of the present invention;

fig. 5 is another schematic overall structure diagram of the partition and the seal according to the embodiment of the present invention;

FIG. 6 is a schematic view of the split structure of the partition and the seal of FIG. 4;

FIG. 7 is a schematic view of the split structure of the partition and the seal of FIG. 5;

fig. 8 is a schematic view of a split structure of a fin member according to an embodiment of the present invention;

fig. 9 is a schematic view of another split structure of a fin member according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 11 is a cross-sectional view of a surrounding heat exchanger according to an embodiment of the present invention.

Detailed Description

Referring to fig. 1 to 3, or to fig. 11, a surrounding heat exchanger includes a core 1;

the surface of the core body 1 divides the core body 1 into an inner channel and an outer channel, wherein the inner channel is used for circulating a first medium, the outer channel is used for circulating a second medium, and the first medium and the second medium form a heat exchange state through the core body 1;

the core 1 sets up in the vertical direction, and interior passageway includes the multistage diversion passageway, and first medium forms the diversion flow state between vertical direction and horizontal direction through arbitrary section diversion passageway respectively, and the outer passageway link up core 1 in the horizontal direction, and wherein, the outer passageway is worn out core 1 at the upper portion or the lower part of core 1.

When the surrounding type heat exchanger of the embodiment is actually used, the first medium flows in the inner channel in a direction-changing manner for multiple times; that is, if the first medium is injected into the core 1 in the vertical direction, the first medium is restricted by the internal passage, and is changed from flowing in the vertical direction to flowing in the horizontal direction, so that the first medium is in a diffused state in the horizontal direction with respect to the core 1; then, the first medium can also be changed from flowing in the horizontal direction to flowing in the vertical direction, so that the medium can be in a diffused state in the vertical direction with respect to the core 1; then, the first medium changes direction in the vertical direction and the horizontal direction a plurality of times during the first medium flows along one of the ends of the core 1 to the other of the ends of the core 1, and also changes direction in the vertical direction and the horizontal direction a plurality of times during the first medium flows out from the inside of the core 1 to the outside of the core 1 until the first medium is discharged out of the core 1. The multiple direction-changing flows of the first medium in the core 1 not only make the first medium in a diffused state with respect to the core 1, but also make the flow path of the first medium with respect to the core 1 longer, so that the first medium has a relatively large contact area with respect to the core 1.

The second medium is injected from the surface outside of the core body 1 to the center of the core body 1 and then is discharged from the center of the core body 1 to the surface outside of the core body 1; that is, if the aforementioned first medium is injected into the core 1 from the vertical direction, the second medium should penetrate through the core 1 in the horizontal direction to the center of the core 1, and then be discharged from the center of the core 1 to the outside of the surface of the core 1 in the vertical direction. The second medium penetrates through the surface of the core 1 and flows out of the surface of the core 1 along one of the vertical directions, and the flow process of the second medium is completed. In the flowing process of the second medium, the second medium forms a direction-changing flowing process from the horizontal direction to the vertical direction; the second medium forms an enclosed flow relative to the surface of the core 1, so that the flow pressure of the second medium relative to the surface of the core 1 at one place is the same or approximately the same, and thus when the second medium penetrates through the surface of the core 1, the pressure of the second medium relative to the core 1 at any place is the same, so that the second medium forms a uniform heat exchange state relative to the surface of the core 1.

It should be understood that, in the enclosed heat exchanger provided in the present embodiment, the second medium may also be first injected into the center of the core 1 along the vertical direction, and then is discharged from the center of the core 1 to the outside of the surface of the core 1 by penetrating the core 1 in a diffusion manner. In this flow pattern of the second medium, the starting direction is opposite to the flow direction of the second medium; that is to say, the surrounding heat exchanger of the present embodiment may form the surface of the surrounding covering core 1, or may form the surface of the center of the covering core 1 in a diffused shape, so that the second medium may respectively form an effect of uniform pressure with respect to the surface of the core 1 when having two flow directions, and further realize an effect of uniform heat dissipation of the second medium with respect to the heat exchanger when having two flow directions.

Therefore, the enclosed heat exchanger provided by the utility model makes the second medium in enclosed contact with the surface of the core body relative to the surface of the core body by changing the flowing direction of the second medium penetrating through the core body; compared with the prior art, the second medium is center to diffusion state's all around contact mode on prior art's the near-end terminal surface of heat exchanger, the utility model provides an enclosed heat exchanger can form the technological effect of the flow pressure of balanced second medium, thereby make the second medium for the enclosed heat exchanger's flow pressure is more even, has solved the plate fin heat exchanger among the prior art, because the area of near-end terminal surface is bigger, makes the second medium pass when the near-end terminal surface, and the second medium is center to diffusion state all around on the near-end terminal surface, and the second medium is inhomogeneous for the pressure of any point of near-end terminal surface, thereby has caused the inhomogeneous technical problem of the radiating efficiency of plate fin heat exchanger among the prior art.

Furthermore, the utility model provides a surrounding type heat exchanger through the flow direction that changes first medium in the core, is favorable to first medium to spread in the core more for the heat exchange area that first medium, core and second medium formed is bigger, thereby has improved the heat exchange efficiency that first medium passes through the heat exchange structure that core and second medium formed.

In the present embodiment, how to define the second medium as the surface contacting the core 1 in a surrounding manner is preferably implemented as follows.

Referring to fig. 10 or 11, the enclosed heat exchanger further comprises a housing 2;

the shell 2 is covered outside the core 1, wherein the core 1 is covered by the shell 2 in the horizontal direction, and the upper part or the lower part of the core 1 is covered by the shell 2;

an external passage penetrates the housing 2, wherein the external passage penetrates the housing 2 in a lower-to-upper direction of the housing 2, or in an upper-to-lower direction of the housing 2.

Wherein, the shell 2 is sleeved outside the core body 1; the core body 1 is arranged along the vertical direction, the upper part of the core body 1 is an upper surface, the lower part of the core body 1 is a lower surface, the side part of the core body 1 is a side surface, and the inner surface of the shell 2 and the side surface of the core body 1 should be spaced for the second medium to be in surrounding contact with the side surface of the core body 1; the shell 2 should be in contact with the upper surface of the core 1, but the shell 2 should not be in contact with the lower surface of the core 1, or the shell 2 should be in contact with the lower surface of the core 1, but the shell 2 should not be in contact with the upper surface of the core 1, and these two arrangements are respectively to enable the second medium to be injected into the shell 2 along the upper-to-lower direction or the lower-to-upper direction of the core 1, the second medium flows from the upper part or the lower part of the core 1 to the side part of the core 1 and is limited by the inner surface of the shell 2, and the second medium flows along the space between the inner surface of the shell 2 and the side surface of the core 1, so as to form the side surface which is in surrounding contact with the core 1; after the second medium penetrates the core 1 to reach the middle part of the core 1, the second medium is discharged from the middle part of the core 1 to the core 1 and the shell 2 along the lower part to upper part direction or the upper part to lower part direction, wherein, an opening should be arranged on the shell 2 so as to form the effect that an external channel penetrates the shell 2' along the lower part to upper part direction of the shell 2 or along the upper part to lower part direction of the shell 2.

When the enclosed heat exchanger provided with the shell 2 and the core 1 is actually used, one end, penetrating through the shell 2, of an external channel on the shell 2 is a tail end, and one end, injecting a second medium into the shell 2, on the shell 2 is a head end, so that the second medium forms multiple diversion flows in the process of injecting the second medium into the shell 2 and discharging the second medium out of the shell 2; that is, when the second medium is injected into the shell 2, the second medium is blocked by the core 1, the second medium flows in a diffusion manner from the head end to the side surface of the core 1, the second medium flows in the space between the inner surface of the shell 2 and the side surface of the core 1 and contacts the side surface of the core 1, limited by the inner surface of the shell 2, the second medium can only contact in a surrounding manner from the side surface of the core 1 to the center direction of the core 1, and after the second medium penetrates through the core 1 and reaches the middle part of the core 1, the second medium is discharged out of the shell 2 from the tail end of the shell 2.

It should be understood that in order to form the effect that the second medium is blocked by the core 1 when the second medium is injected into the shell 2, a blocking structure should be provided at the head end of the core 1 of the shell 2, which is specifically described in the following and is not described here.

It should be understood that the shell 2 and the core 1 of the present embodiment may be made in various shapes, including but not limited to a rectangular annular cylinder, a circular annular cylinder, or an elliptical annular cylinder.

In this embodiment, for convenience of describing a specific structure of the wrap-around heat exchanger, a circular annular column is taken as an example and will be described in more detail.

Referring to fig. 1 to 3, or to fig. 11, the core 1 is cylindrical;

the outer channel penetrates the core body 1 in the radial direction of the core body 1, wherein the outer channel penetrates the upper or lower part of the core body 1 in the axial direction of the core body 1.

It should be understood that if the core 1 is provided in a cylindrical shape, the shell 2 may be provided in various shapes as long as the shell 2 can surround the core 1 with the inner surface of the shell 2 spaced apart from the side surface of the core 1; for the sake of understanding by those skilled in the art, the cylindrical housing 2 is preferably used for illustration.

When the core 1 and the shell 2 are respectively arranged in the vertical direction, the core 1 should be arranged inside the shell 2; the upper or lower portion of the housing 2 should be provided with a circular ring-shaped structure, and when the upper portion of the core 1 or the lower portion of the core 1 is coupled to the circular ring-shaped structure, the central through-hole 120 of the circular ring-shaped structure communicates with an external passage passing through the upper or lower portion of the core 1, thereby facilitating the discharge of the second medium to the outside of the core 1 and the housing 2 through the external passage and the central through-hole 120.

The inner surface of the shell 2 and the side surface of the core 1 form a circular cylinder-shaped cavity structure, so that the second medium is in surrounding contact with the side surface of the core 1.

The bottom of the housing 2 should be arranged as an opening or as a covering structure with an interface to facilitate the injection of the second medium into the aforementioned 'cavity structure'.

The core 1 is formed in a cylindrical shape, and the housing 2 is designed in a cylindrical shape, so that the core and the housing are simple in structure and easy to manufacture.

In this embodiment, how to manufacture the cylindrical core 1 more specifically is preferably implemented as follows.

Referring to fig. 4 to 7, the core 1 includes a plurality of partitions 101 and a plurality of seals 102;

any partition plate 101 is circular;

any one seal 102 is respectively provided with a first annular part 111, a second annular part 112, a first connecting part 113 and a second connecting part 114, wherein the diameter of the first annular part 111 is smaller than that of the second annular part 112, the first annular part 111 and the second annular part 112 are arranged in a concentric state, and the first connecting part 113 and the second connecting part 114 are respectively used for connecting the first annular part 111 and the second annular part 112;

the plurality of partition plates 101 are parallel to each other, and the centers of the plurality of partition plates 101 are respectively arranged on the same axis, wherein the axis is parallel to the vertical direction;

two adjacent partition plates 101 and one seal 102 are arranged into a layer assembly, the multilayer assembly is arranged into a spacing shape along the vertical direction, one seal 102 is arranged between the two partition plates 101, and the radial surface of the layer assembly is in a sealing state.

The first annular portion 111, the second annular portion 112, the first connecting portion 113 and the second connecting portion 114 of the seal 102 connect the seal 102 to form a whole, which facilitates the manufacture of the seal 102. One preferred method of making the seal 102 is: extruding an aluminum or aluminum alloy material into an intermediate component with a sleeve structure by adopting a die and an aluminum extrusion manner, wherein the distance between an outer cylinder and an inner cylinder of the sleeve structure is the same as the distance between the first annular part 111 and the second annular part 112, a first intermediate plate and a second intermediate plate are respectively arranged between the outer cylinder and the inner cylinder and are respectively used for fixing the outer cylinder and the inner cylinder, and the widths of the first intermediate plate and the second intermediate plate are respectively the same as the length of the first connecting part 113 and the length of the second connecting part 114; after the intermediate part is manufactured, the intermediate part is cut to a predetermined size by a cutting method, and the seal 102 having the first annular portion 111, the second annular portion 112, the first connecting portion 113, and the second connecting portion 114 is obtained.

To facilitate the circulation of the first medium within the core 1, it may be preferable to increase the thickness of the seal 102; that is, the vertical heights of the first annular portion 111, the second annular portion 112, the first connecting portion 113, and the second connecting portion 114 are respectively increased and maintained the same, so that the interval between the two separators 101 connected to the seal 102 can be increased.

The separator 101 is provided in a circular ring shape, which, on the one hand, can form a cylindrical shape with the seal 102, so that the profiles of the first and second

annular parts

111, 112 match the outer and inner circumferential profiles of the separator 101, respectively, and, on the other hand, the circular ring-shaped separator 101 can also facilitate the manufacture of the separator 101 itself; one preferred method of manufacturing the annular separator 101 is: manufacturing a cylindrical middle aluminum ingot with a central through hole 120 by adopting a die and an aluminum extrusion mode, and cutting the middle aluminum ingot according to a preset size to obtain the annular partition plate 101.

In this embodiment, how to inject the first medium into the inner cavity enclosed by the two partition boards 101 and the seal 102 is preferably implemented as follows.

Referring to fig. 4 to 7, two through holes 120 are respectively formed in any one of the partition plates 101;

the two partition plates 101 of any one assembly are respectively an upper partition plate 101 and a lower partition plate 101, the two through holes 120 of the upper partition plate 101 are respectively an upper filling hole and an upper discharging hole, the two through holes 120 of the lower partition plate 101 are respectively a lower filling hole and a lower discharging hole, the upper filling hole and the lower filling hole are respectively located on two sides of the first connecting portion 113, and the upper discharging hole and the lower discharging hole are respectively located on two sides of the second connecting portion 114;

the inner cavity of the assembly is divided into two chambers by a first connecting part 113 and a second connecting part 114, the two chambers are respectively an injection cavity and a discharge cavity, the upper injection hole and the lower injection hole are respectively communicated with the injection cavity, the upper discharge hole and the lower discharge hole are respectively communicated with the discharge cavity, and the injection cavity and the discharge cavity are mutually isolated.

Wherein, the inner cavity between the two clapboards 101 and the seal 102 is divided into an injection cavity and a discharge cavity by a first connecting part 113 and a second connecting part 114; when the first medium is actually injected into the injection cavity, the first medium passes through the upper injection hole and is injected into the injection cavity, the first medium is limited by the injection cavity, the direction of the first medium is changed from the direction vertical to the partition plate 101 to the direction parallel to the partition plate 101, and the first medium flows out of the injection cavity when the first medium flows to the lower discharge hole; when the first medium is actually injected into the discharge chamber, the first medium is injected into the discharge chamber through the lower injection hole, the first medium is restricted by the discharge chamber, flows in the discharge chamber from a direction perpendicular to the partition plate 101 to a direction parallel to the partition plate 101, and is discharged out of the discharge chamber when the first medium flows to the upper discharge port.

The core 1 has a plurality of baffles 101 and seals 102, that is, the core 1 has a plurality of injection cavities and a plurality of discharge cavities therein; because the core body 1 is cylindrical, the plurality of injection cavities are communicated in sequence from the upper part to the lower part of the core body 1, and similarly, the plurality of discharge cavities are communicated in sequence from the lower part to the upper part of the core body 1; from the perspective of an external observer, two adjacent injection cavities or two adjacent discharge cavities are in a state of being parallel to each other and being staggered from each other, because, in the structure of the partition plate 101 and the seal 102 where the two adjacent injection cavities and discharge cavities are located, the two through holes 120 of the upper partition plate 101 and the two through holes 120 of the lower partition plate 101 where the first injection cavity and discharge cavity are located are respectively disposed at both sides of the first connecting portion 113 and the second connecting portion 114, and similarly, the two through holes 120 of the upper partition plate 101 and the two through holes 120 of the lower partition plate 101 where the second injection cavity and discharge cavity are located are respectively disposed at both sides of the first connecting portion 113 and the second connecting portion 114, and when the two adjacent injection cavities are connected and the two adjacent discharge cavities are connected, the lower discharge hole of the combined structure of the partition plate 101 and the seal 102 where the first injection cavity and discharge cavity are located, and the upper portion of the combined structure of the partition plate 101 and the seal 102 where the second injection cavity and discharge cavity are located are communicated with each other In one piece, so that the lower outlet orifice of the combined structure of the partition 101 and the seal 102, in which the second infusion and discharge chamber is located, is cheaper with respect to the lower outlet orifice of the combined structure of the partition 101 and the seal 102, in which the first infusion and discharge chamber is located; therefore, after the plurality of injection chambers and the plurality of discharge chambers are vertically communicated with each other, the plurality of injection chambers and the plurality of discharge chambers form a spiral rotating structure when viewed from an external observer. In the arrangement mode, the inner cavity of each partition plate 101 and the seal 102 is divided into two injection cavities and two discharge cavities which are not communicated with each other, and in the communication structure of the inner cavities of the partition plates 101 and the seal 102, the injection cavities and the discharge cavities are spirally crossed together respectively, so that when a first medium flows in the core body 1, the first medium and a second medium which is in a surrounding shape can form spiral cross contact through the core body 1 from a plurality of angles, and more uniform heat exchange efficiency can be realized.

It should be understood that, after the plurality of injection chambers and the plurality of discharge chambers are respectively communicated, if the first medium is injected into the injection chamber from the head end of the core 1, in order to prevent the first medium from being discharged from the lower injection hole or the lower discharge hole at the tail end of the core 1, the lower injection hole and the lower discharge hole of the partition plate 101 at the tail end should be closed so that the first medium can flow from the injection chamber at the tail end to the discharge chamber at the tail end and from the discharge chamber at the tail end to the discharge chamber at the head end when the first medium is injected into the tail end of the core 1, so that the first medium is discharged from the upper discharge hole at the head end. Similarly, if the first medium is injected into the injection cavity from the tail end of the core 1, then, in order to prevent the first medium from being discharged from the upper injection hole or the upper discharge hole at the head end of the core 1, the upper injection hole and the upper discharge hole on the partition plate 101 at the head end should be closed, so that the first medium can flow from the injection cavity at the head end to the discharge cavity at the head end and then from the discharge cavity at the head end to the discharge cavity at the tail end when being injected into the head end of the core 1, so that the first medium is discharged from the lower discharge hole at the tail end.

In order to realize the closing of the partition plate 101 at one end of the core 1, in the present embodiment, the following two schemes are preferably adopted:

in the case of the embodiment a, a cap member (not shown) is additionally provided to cover one end of the core 1, so that the injection chamber and the discharge chamber at the rear end of the core 1 communicate with each other through the lower discharge hole, the inner cavity of the cap member, and the lower injection hole, and the cap member is in a state of sealing the partition plate 101 at the rear end of the core 1. On the contrary, how the baffle 101 located at the head end of the core 1 is closed can be realized by the cover-shaped component, which is not described herein.

Scheme B, one of the multi-layer combined bodies is a first combined body, one partition plate 101 of the first combined body is a positioning partition plate 101, the positioning partition plate 101 is attached to the shell 2 in a surface shape, wherein two guide holes penetrating through the shell 2 are formed in the shell 2, and the two guide holes are respectively communicated with the two through holes 120 of the positioning partition plate 101 in the vertical direction;

another of the multi-layer combinations is a second combination, one of the partitions 101 of the second combination is a closed partition 101, wherein the distance from the closed partition 101 to the positioning partition 101 is greater than the distance from any of the other partitions 101 to the positioning partition 101, and the closed partition 101 is a blind plate (not shown).

The effect of closing the partition plate 101 is realized by modifying the partition plate 101 and the seal 102 which are located at the head end or the tail end of the core 1, wherein the partition plate 101 located at the head end of the core 1 is directly set to be a blind plate (not shown in the figure), the effect of closing the partition plate 101 is realized, and in the seal 102 located at the head end of the core 1, one of the first connecting portion 113 and the second connecting portion 114 is set to be a notch shape, so that the connection of the injection cavity and the discharge cavity located at the head end is realized. On the contrary, in the partition 101 located at the tail end of the core 1, the partition 101 and the seal 102 are processed in the same manner, which is not described herein.

With the above two schemes, in addition to closing the partition plate 101 at one end of the core 1, the effect that the second medium is blocked by the core 1 when the second medium is injected into the housing 2 can be achieved.

In the present embodiment, in order to increase the heat exchange area formed by the first medium and the second medium passing through the core 1, the following scheme is preferably adopted.

Referring to fig. 5 or 7, a plurality of fins 121 are disposed on the seal 102, wherein any one of the fins 121 is disposed on the first annular portion 111 and/or the second annular portion 112, respectively, and any one of the fins 121 is disposed outside the surface of the combined body.

Since the thickness of the seal 102 is increased in the embodiment, so that the distance between the partition plates 101 on the core 1 in the embodiment is increased, the fin 121 is disposed on the seal 102, so that the surface area of the seal 102 (the surface area exposed to the surface of the core 1) is increased, thereby increasing the heat exchange area formed by the first medium and the second medium passing through the core 1, and finally increasing the heat exchange efficiency formed by the first medium and the second medium passing through the core 1.

And, referring to fig. 8 or 9, the core 1 further comprises a plurality of fin 131 members 122;

a fin 131 part 122 is arranged between the adjacent two-layer combined bodies;

each of the fin 131 members 122 is provided with a plurality of flow channels, each of which horizontally penetrates the core 1, and each of which is a part of an external passage.

The structure of the fins 131 is provided in the core 1, so that the surface area of each layer of the core 1 (one layer is formed by two separators 101 and one seal 102) is increased, and finally the heat exchange efficiency of the heat exchange structure formed by the first medium and the second medium passing through the core 1 can be improved, which is common knowledge in the art and will not be described herein.

In the present embodiment, the fin 131 part 122 is preferably implemented as follows.

Referring to fig. 8 or 9, the fin 131 part 122 includes a plurality of fins 131, a first heat conduction plate 132, a second heat conduction plate 133, a first guide pipe 134 and a second guide pipe 135;

a first opening 136 is formed at the center of the first heat conduction plate 132, and a second opening 137 is formed at the center of the second heat conduction plate 133;

the first heat conduction plate 132 is arranged in the horizontal direction, the second heat conduction plate 133 is arranged above or below the first heat conduction plate 132, a space is left between the first heat conduction plate 132 and the second heat conduction plate 133, and the first opening 136 and the second opening 137 are in a through state in the vertical direction;

the first and

second guide pipes

134 and 135 are respectively disposed between the first and second heat-conducting

plates

132 and 133, and the first and

second guide pipes

134 and 135 penetrate the first and second heat-conducting

plates

132 and 133, respectively;

the plurality of fins 131 are radially disposed between the first heat conduction plate 132 and the second heat conduction plate 133, and a space is left between both ends of each of the adjacent fins 131.

Wherein the first heat conducting plate 132 and the second heat conducting plate 133 are respectively used for connecting one of the fins 131 in the core 1, since each layer of the core 1 has two fins 131 respectively, when one fin 131 part 122 is disposed between two adjacent layers of the core 1, the first heat conducting plate 132 is connected with one of the partition plates 101 of one of the layers, and the second heat conducting plate 133 is connected with one of the partition plates 101 of the other layer.

The first and

second guide pipes

134 and 135 penetrate the first and second heat-conducting

plates

132 and 133, respectively, and, when one fin 131 member 122 is disposed between the adjacent two layers of the core 1, both ends of the first guide pipe 134 communicate with the lower injection port of one of the layers and the upper injection port of the other layer, respectively, and both ends of the second guide pipe 135 communicate with the lower injection port of one of the layers and the upper injection port of the other layer, respectively.

The first opening 136 is formed on the first heat-conducting plate 132, and the second opening 137 is formed on the second heat-conducting plate 133, so that the second medium can be discharged from the middle of the core 1 to the outside of the core 1, and the first heat-conducting plate 132 and the second heat-conducting plate 133 are prevented from blocking the process of discharging the second medium out of the core 1.

The plurality of fins 131 are radially arranged between the first guide plate and the second guide plate, and one of the channels for the second medium to penetrate through the core 1 is formed between two adjacent fins 131, so that the effect of injecting the second medium from the side surface of the core 1 to the middle of the core 1 is achieved.

In this embodiment, the fins 131 may also be disposed outside the surface of the core 1 in a slightly protruding manner, specifically:

referring to fig. 1 to 3, or, referring to fig. 11, any one of the fins 131 is accommodated between the adjacent two combinations;

wherein, any fin 131 protrudes from the assembly along the radial direction of the assembly;

alternatively, any of the fins 131 is disposed within the horizontal profile of the assembly in the radial direction of the assembly.

The fins 131 are provided to slightly protrude outside the surface of the core 1, and the area of any one of the fins 131 can be increased; when the second medium flows along the space between the inner surface of the shell 2 and the side surface of the core 1, the second medium can contact any one of the fins 131, so that the heat exchange efficiency of the second medium relative to the fins 131 is improved; and, in the process that the second medium is discharged from the middle of the core 1 to the outside of the core 1, the second medium can contact any one of the fins 131 as well, thereby improving the heat exchange efficiency of the second medium relative to the fins 131 themselves.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. A wrap-around heat exchanger comprising a core;

the surface of the core body divides the core body into an inner channel and an outer channel, the inner channel is used for circulating a first medium, the outer channel is used for circulating a second medium, and the first medium and the second medium form a heat exchange state through the core body;

the core body is arranged in the vertical direction, the inner channel comprises a plurality of sections of turning channels, the first medium forms a turning flowing state between the vertical direction and the horizontal direction through any section of the turning channel respectively, the outer channel penetrates through the core body in the horizontal direction, and the outer channel penetrates out of the core body at the upper part or the lower part of the core body.

2. The wrap heat exchanger of claim 1, further comprising a housing;

the shell covers the outside of the core, wherein the core is covered by the shell in the horizontal direction, and the upper part or the lower part of the core is covered by the shell;

the external passage penetrates the housing, wherein the external passage penetrates the housing in a lower-to-upper direction of the housing or in an upper-to-lower direction of the housing.

3. The wrap heat exchanger of claim 2, wherein the core is cylindrical;

the outer channel penetrates through the core body in the radial direction of the core body, wherein the outer channel penetrates out of the upper portion or the lower portion of the core body in the axial direction of the core body.

4. The wrap heat exchanger of claim 3, wherein the core comprises a plurality of baffles and a plurality of seals;

any one of the partition plates is circular;

any one seal is respectively provided with a first annular part, a second annular part, a first connecting part and a second connecting part, wherein the diameter of the first annular part is smaller than that of the second annular part, the first annular part and the second annular part are arranged in a concentric state, and the first connecting part and the second connecting part are respectively used for connecting the first annular part and the second annular part;

the plurality of partition plates are parallel to each other, and the centers of the plurality of partition plates are respectively arranged on the same axis, wherein the axis is parallel to the vertical direction;

two adjacent baffles and one seal are arranged into a layer of assembly, and multiple layers of assemblies are arranged into intervals along the vertical direction, wherein one seal is arranged between the two baffles, and the radial surface of one layer of assembly is in a sealing state.

5. The wrap heat exchanger of claim 4 wherein each of said partitions has two through-holes;

the two partition plates of any one of the combinations are respectively an upper partition plate and a lower partition plate, the two through holes of the upper partition plate are respectively an upper injection hole and an upper discharge hole, the two through holes of the lower partition plate are respectively a lower injection hole and a lower discharge hole, the upper injection hole and the lower injection hole are respectively positioned on two sides of the first connecting part, and the upper discharge hole and the lower discharge hole are respectively positioned on two sides of the second connecting part;

the inner cavity of the assembly is divided into two cavities by the first connecting part and the second connecting part, the two cavities are respectively an injection cavity and a discharge cavity, the upper injection hole and the lower injection hole are respectively communicated with the injection cavity, the upper discharge hole and the lower discharge hole are respectively communicated with the discharge cavity, and the injection cavity and the discharge cavity are mutually isolated.

6. The enclosed heat exchanger of claim 4, wherein a plurality of fins are disposed on the seal, wherein any one of the fins is disposed on the first annular portion and/or the second annular portion, respectively, and any one of the fins is disposed outside a surface of the combination, respectively.

7. The wrap heat exchanger of any one of claims 4 to 6, wherein the core further comprises a plurality of fin members;

one fin part is arranged between the two adjacent layer combinations;

any one of the fin members is provided with a plurality of flow channels, each of the flow channels penetrates the core body in the horizontal direction, and each of the flow channels is a part of the external passage.

8. The wrap heat exchanger of claim 7, wherein the fin member comprises a plurality of fins, a first thermally conductive plate, a second thermally conductive plate, a first conduit, and a second conduit;

a first opening is formed in the center of the first heat conduction plate, and a second opening is formed in the center of the second heat conduction plate;

the first heat conduction plate is arranged in the horizontal direction, the second heat conduction plate is arranged above or below the first heat conduction plate, a space is reserved between the first heat conduction plate and the second heat conduction plate, and the first opening and the second opening are in a through state in the vertical direction;

the first guide pipe and the second guide pipe are respectively arranged between the first heat-conducting plate and the second heat-conducting plate and respectively penetrate through the first heat-conducting plate and the second heat-conducting plate;

the fins are radially arranged between the first heat conduction plate and the second heat conduction plate respectively, and intervals are reserved at two ends of every two adjacent fins respectively.

9. A wrap-around heat exchanger according to claim 8, wherein any one of the fins is accommodated between adjacent two of the combinations;

wherein any one of the fins protrudes from the combined body in a radial direction of the combined body;

alternatively, any of the fins is disposed within a horizontal profile of the assembly in a radial direction of the assembly.

10. The wrap-around heat exchanger of claim 5, wherein one of the plurality of layers of the assembly is a first assembly, one of the partitions of the first assembly is a positioning partition, and the positioning partition is in planar contact with the shell, wherein the shell is provided with two guide holes penetrating through the shell, and the two guide holes are respectively in vertical communication with the two through holes of the positioning partition;

and the other assembly in the multi-layer assemblies is a second assembly, one partition plate of the second assembly is a closed partition plate, wherein the distance from the closed partition plate to the positioning partition plate is greater than the distance from any other partition plate to the positioning partition plate, and the closed partition plate is a blind plate.