CN212620290U

CN212620290U - Plate heat exchanger

Info

Publication number: CN212620290U
Application number: CN202021074595.2U
Authority: CN
Inventors: 杨新鹏; 蔡静
Original assignee: Mind Electronics Appliance Co Ltd
Current assignee: Mind Electronics Appliance Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-02-26
Anticipated expiration: 2030-06-11

Abstract

A plate heat exchanger comprising: a plurality of heat exchanger slab of superpose in proper order, the heat exchanger slab includes the influent stream side and the side of effluenting, the influent stream side is equipped with influent stream mouth and first overflow mouth, the side of effluenting is equipped with the overflow mouth and the second overflow mouth, the influent stream mouth with first overflow mouth intercommunication, first overflow mouth with the second overflows the mouth and passes through the pipeline intercommunication, the second overflow mouth with the intercommunication of effluence mouth, the influent stream side with be equipped with the cavity hole that insulates against heat between the outflow side, the at least part in cavity hole that insulates against heat is located the influent stream side with the middle part region between the outflow side. The utility model provides a plate heat exchanger is equipped with hollow heat insulation region between the hot side region through plate heat exchanger and the cold side region, can prevent effectively to carry out too much heat exchange between hot side region and the cold side region, avoids the temperature undersize between hot side region and the cooling zone, improves plate heat exchanger's heat transfer performance.

Description

Plate heat exchanger

Technical Field

The present application relates to a plate heat exchanger.

Background

In the field of automobile thermal management, several media such as air, oil, coolant, refrigerant and the like are generally used, the media are packaged in a certain area, heat is transferred between different temperatures of different media or between different temperatures of the same medium, and the packaging area comprises a heat exchanger. In the related art, fluid in the hot side region of the heat exchanger can flow into the cold side region, but excessive heat exchange exists between the cooling region and the hot side region, so that the fluid in the hot side region is cooled by the cooling region before flowing into the cooling region, the temperature difference between the fluid in the hot side region and the cooling region is reduced, and finally the heat exchange performance of the heat exchanger is reduced, and a room for improvement exists.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application aims to provide a plate heat exchanger, which can effectively insulate heat between a hot side region and a cold side region of the plate heat exchanger, and is beneficial to ensuring the heat exchange performance of the plate heat exchanger.

In order to achieve the purpose, the technical scheme of the application is realized as follows:

a plate heat exchanger comprising: a plurality of heat exchanger slab of superpose in proper order, the heat exchanger slab includes the influent stream side and the side of effluenting, the influent stream side is equipped with influent stream mouth and first overflow mouth, the side of effluenting is equipped with the overflow mouth and the second overflow mouth, the influent stream mouth with first overflow mouth intercommunication, first overflow mouth with the second overflows the mouth and passes through the pipeline intercommunication, the second overflow mouth with the intercommunication of effluence mouth, the influent stream side with be equipped with the cavity hole that insulates against heat between the outflow side, the at least part in cavity hole that insulates against heat is located the influent stream side with the middle part region between the outflow side.

Further, the hollow insulating hole includes a first insulating hole and a second insulating hole located at both sides of the first insulating hole, and the first insulating hole and the second insulating hole are arranged between the inflow side and the outflow side at a distance.

Further, the length of the second insulation hole extending along the connection direction of the inflow side and the outflow side is greater than the length of the first insulation hole extending along the connection direction of the inflow side and the outflow side.

Further, a distance from the second insulation hole to the first insulation hole on a first side of the first insulation hole is the same as a distance from the second insulation hole to the first insulation hole on a second side of the first insulation hole.

Further, the hollow heat insulation hole comprises a middle hole and a flared hole connected with the end of the middle hole, the middle hole is located in the middle area between the flow inlet side and the flow outlet side, and the width of the flared hole is larger than that of the middle hole.

Furthermore, the number of the flaring holes is two, the two flaring holes are respectively connected with two ends of the middle hole, and the two flaring holes are symmetrically arranged at two ends of the middle hole.

Further, the hollow heat insulation hole further comprises an extension hole, the extension hole is connected with the flaring hole and is located at one end, far away from the middle hole, of the flaring hole.

Further, the extension hole extends between the inlet and the outlet.

Furthermore, the number of the extension holes is two, the two extension holes are respectively connected with the two flared holes, one of the two extension holes extends to a position between the flow inlet and the flow outlet, and the other of the two extension holes extends to a position between the first flow passing port and the second flow passing port.

Further, the heat exchanger plate includes a first plate block and a second plate block which are arranged at an interval, the first plate block is formed with the inflow side, the second plate block is formed with the outflow side, and a gap between the first plate block and the second plate block is formed as the hollow heat insulation hole.

Compared with the prior art, the plate heat exchanger has the following advantages:

according to the plate heat exchanger of the embodiment of the application, the hollow heat insulation region is arranged between the hot side region and the cold side region of the plate heat exchanger, so that excessive heat exchange between the hot side region and the cold side region can be effectively prevented, the temperature between the hot side region and the cooling region is prevented from being too low, and the heat exchange performance of the plate heat exchanger is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

fig. 1 is a schematic structural view of a heat exchanger plate according to some embodiments of the present application;

FIG. 2 is a schematic structural view of a heat exchanger plate according to further embodiments of the present application;

FIG. 3 is a schematic structural view of a heat exchanger plate according to further embodiments of the present application;

FIG. 4 is a schematic structural view of a heat exchanger plate according to further embodiments of the present application;

fig. 5 is a schematic structural diagram of a plate heat exchanger according to an embodiment of the present application;

fig. 6 is a schematic structural view (another view) of a plate heat exchanger according to an embodiment of the present application.

Description of reference numerals:

the plate heat exchanger 100 is provided with,

heat exchanger plate 1, an inlet side 11, an inlet 12, a first overflow 13, an outlet side 14, an outlet 15, a second overflow 16, a first plate 17, a second plate 18,

a hollow insulation hole 2, a first insulation hole 21, a second insulation hole 22, a middle hole 23, a flared hole 24, an extension hole 25,

an inlet pipe 31, an intermediate pipe 32 and an outlet pipe 33.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 5, a hollow heat insulation region is disposed between a hot side region and a cold side region of a heat exchanger plate 1 of a plate heat exchanger 100, so that excessive heat exchange between the hot side region and the cold side region can be effectively prevented, an excessively low temperature between the hot side region and the cold side region can be avoided, and the heat exchange performance of the plate heat exchanger 100 can be improved.

As shown in fig. 5, a plate heat exchanger 100 according to an embodiment of the present application includes: a plurality of heat exchanger plates 1 stacked one above the other. As shown in fig. 1, the heat exchanger plate 1 includes an inlet side 11 and an outlet side 14, the inlet side 11 is provided with an inlet 12 and a first flow port 13, the outlet side 14 is provided with an outlet 15 and a second flow port 16, the inlet 12 is communicated with the first flow port 13, the first flow port 13 is communicated with the second flow port 16, and the second flow port 16 is communicated with the outlet 15. Wherein, as shown in fig. 5, the inlet 12 is used for connecting with the inlet pipe 31, the first overflow port 13 is used for connecting with the input end of the middle pipe 32, the second overflow port 16 is used for connecting with the output end of the middle pipe 32, and the outlet 15 is used for connecting with the outlet pipe 33. It should be noted that, in the present application, the flow directions of the inlet 12, the first overflow port 13, the second overflow port 16 and the outlet 15 are not limited, that is, the liquid medium may flow in from the inlet 12, flow to the outlet 15 through the first overflow port 13 and the second overflow port 16 in sequence, and flow out from the outlet 15; the functions of the inlet and

outlet ports

12 and 15 may be reversed, that is, the liquid medium may flow in from the outlet port 15, flow into the inlet port 12 through the second and

first flow ports

16 and 13 in this order, and flow out from the inlet port 12.

It can be understood that, as shown in fig. 5, the inlet pipe 31 is adapted to input a high-temperature heat exchange medium into the inlet 12, and the high-temperature medium can flow from the inlet 12 to the first flow-through port 13 and carry out heat output during the flowing process. And the heat exchange medium after the heat output is completed can flow from the first overflowing port 13 to the second overflowing port 16 through the middle pipe 32, and gradually flow from the second overflowing port 16 to the outlet 15 and finally flow out from the outlet pipe 33. That is, the heat exchange medium flowing between the inlet 12 and the first flow port 13 on the inlet side 11 is a high temperature medium, and the heat exchange medium flowing between the second flow port 16 and the outlet 15 on the outlet side 14 is a low temperature medium, that is, the inlet side 11 is a hot side region and the outlet side 14 is a cold side region.

As shown in fig. 6, the plate heat exchanger 100 includes two sets of the inlet pipes 31, the intermediate pipes 32 and the outlet pipes 33, so that after the inlet pipes 31, the intermediate pipes 32 and the outlet pipes 33 are installed and matched, medium circulation flow channels are formed at the upper end and the lower end of the plate heat exchanger 100, so that the plate heat exchanger 100 can exchange heat from two different paths.

As shown in fig. 1, a hollow heat insulation hole 2 is provided between the inflow side 11 and the outflow side 14, the hollow heat insulation hole 2 is designed and formed to be hollowed in a region between the inflow side 11 and the outflow side 14, so that the inflow side 11 and the outflow side 14 are spaced apart at the hollow heat insulation hole 2, that is, the two cannot perform effective contact heat exchange, which is beneficial to reducing heat exchange between the inflow side 11 and the outflow side 14, thereby preventing the low-temperature heat exchange medium of the outflow side 14 from cooling the high-temperature heat exchange medium of the inflow side 11, avoiding the low temperature difference between the inflow side 11 and the outflow side 14, and improving the heat exchange performance of the plate heat exchanger 100.

Wherein at least part of the hollow insulating hole 2 is located in the middle area between the inflow side 11 and the outflow side 14. As shown in fig. 1, the inlet side 11 is located at the upper part of the plate heat exchanger 100, the outlet side 14 is located at the lower side of the plate heat exchanger 100, and a hollow heat insulation hole 2 is arranged in the middle area of the connecting position of the inflow side 11 and the outflow side 14, as shown in fig. 1, the inlet 12, the first flow-passing port 13, the second outlet 15 and the outlet 15 are respectively located at four corners of the plate heat exchanger 100, and at least part of the hollow insulating hole 2 is located at the intersection of the diagonals of the plate heat exchanger 100, that is, at least part of the hollow insulating hole 2 is located in the middle region of the plate heat exchanger 100, in this way, the hollow insulating hole 2 can block heat between the inlet 12 and the outlet 15 and also between the first and

second outlets

13 and 16, thereby more effectively preventing the temperature difference between the inlet side 11 and the outlet side 14 from becoming too small.

It should be noted that a plurality of heat exchanger plates 1 are stacked in sequence, and a heat exchange flow channel is defined between two adjacent heat exchanger plates 1, and the heat exchange flow channel is used for medium circulation, wherein the heat exchange flow channel is divided into a portion located on the inlet side 11 and a portion located on the outlet side 14 at the hollow heat insulation hole 2, the inlet 12 is communicated with the first overflow port 13 through the portion located on the inlet side 11 of the heat exchange flow channel, the second overflow port 16 is communicated with the outlet 15 through the portion located on the outlet side 14 of the heat exchange flow channel, and the portion located on the inlet side 11 of the heat exchange flow channel is communicated with the portion located on the outlet side 14 of the heat exchange flow channel through the first overflow port 13 and the second overflow port 16 through the intermediate pipe 32.

According to the plate heat exchanger 100 of the embodiment of the application, the hollow heat insulation region is arranged between the hot side region and the cold side region of the plate heat exchanger 100, so that excessive heat exchange between the hot side region and the cold side region can be effectively prevented, the temperature between the hot side region and the cooling region is prevented from being too low, and the heat exchange performance of the plate heat exchanger 100 is improved.

In some embodiments, as shown in FIG. 1, the hollow insulating aperture 2 comprises a first insulating aperture 21 and second insulating apertures 22 on either side of the first insulating aperture 21, the first insulating aperture 21 and the second insulating aperture 22 being disposed between the inflow side 11 and the outflow side 14 in a spaced apart relationship. Wherein the first porthole 21 is provided in a middle area between the inlet side 11 and the outlet side 14, i.e. the first porthole 21 is located on a diagonal of the plate heat exchanger 100.

The number of the second insulation holes 22 is at least two, that is, the second insulation holes 22 may be two or more, as shown in fig. 1, two second insulation holes 22 are provided, and two second insulation holes 22 are respectively located at two sides of the first insulation hole 21, wherein one second insulation hole 22 is provided adjacent to the region between the inlet 12 and the outlet 15, and the other second insulation hole 22 is provided adjacent to the region between the first outlet 13 and the second outlet 16, so that the inlet side 11 and the outlet side 14 of the plate heat exchanger 100 can be effectively insulated at multiple positions, thereby facilitating the reduction of the amount of heat exchange between the inlet side 11 and the outlet side 14 and the increase of the temperature difference between the inlet side 11 and the outlet side 14.

As shown in fig. 1, the first insulation holes 21 and the second insulation holes 22 are spaced apart in parallel, and the extending directions of the first insulation holes 21 and the second insulation holes 22 are both parallel to the connecting direction of the inlet side 11 and the outlet side 14, that is, the extending direction of the second insulation holes 22 is parallel to the connecting direction of the inlet 12 and the outlet 15, and the length of the second insulation holes 22 extending in the connecting direction of the inlet side 11 and the outlet side 14 is longer than the length of the first insulation holes 21 extending in the connecting direction of the inlet side 11 and the outlet side 14.

Thus, one second heat insulation hole 22 increases the heat insulation distance between the inlet 12 and the outlet 15 and reduces the heat exchange amount between the inlet 12 and the outlet 15 by using the structural characteristics of the extending direction thereof in the region adjacent to the inlet 12 and the outlet 15, and the other second heat insulation hole 22 increases the heat insulation distance between the first flow passing port 13 and the second flow passing port 16 and reduces the heat exchange amount between the first flow passing port 13 and the second flow passing port 16 by using the structural characteristics of the extending direction thereof in the region adjacent to the first flow passing port 13 and the second flow passing port 16.

As shown in fig. 1, the interval from the second adiabatic hole 22 on the first side of the first adiabatic hole 21 to the first adiabatic hole 21 is the same as the interval from the second adiabatic hole 22 on the second side of the first adiabatic hole 21 to the first adiabatic hole 21. That is, the two second insulation holes 22 are respectively disposed at the both sides of the first insulation hole 21 at the same interval, so that the insulation effect of the two second insulation holes 22 on the both sides of the first insulation hole 21 is balanced, in other words, the insulation effect of one of the two second insulation holes 22 between the inlet 12 and the outlet 15 is balanced with the insulation effect of the other one between the first and

second outlets

13 and 16.

In some embodiments, as shown in FIG. 2, the hollow insulating hole 2 includes a middle hole 23 and a flared hole 24, the flared hole 24 is connected to the end of the middle hole 23, and as shown in FIG. 2, the flared hole 24 is communicated with the end of the middle hole 23, such that the middle hole 23 can be integrally formed with the flared hole 24, wherein the middle hole 23 is located in the middle area between the inflow side 11 and the outflow side 14, such that the middle hole 23 is communicated with the flared hole 24 to form a longer continuous insulating area on the inflow side 11 and the outflow side 14, greatly enhancing the insulating effect of the inflow side 11 and the outflow side 14,

as shown in fig. 2, the width of the flared opening 24 is greater than the width of the intermediate opening 23, i.e. the thermal insulation effect of the flared opening 24 between the inlet side 11 and the outlet side 14 is greater than the thermal insulation effect of the intermediate opening 23. As shown in fig. 1, the flared hole 24 is configured as a circular arc hole, and the maximum width of the flared hole 24 is three times the width of the middle hole 23, whereby the heat insulation effect of the hollow heat insulation hole 2 is greatly improved.

As shown in fig. 2, there are two flared holes 24, the two flared holes 24 are respectively connected to two ends of the middle hole 23, and the two flared holes 24 are symmetrically disposed at two ends of the middle hole 23, that is, the two ends of the middle hole 23 are both insulated by the flared holes 24, which is beneficial to enhancing the heat insulation effect at two ends of the middle hole 23, thereby improving the overall heat exchange performance of the plate heat exchanger 100.

In some embodiments, as shown in FIG. 3, the hollow insulating aperture 2 further comprises an extension aperture 25, the extension aperture 25 being connected to the flared aperture 24, and the extension aperture 25 being located at an end of the flared aperture 24 remote from the central aperture 23. As shown in fig. 3, the extension holes 25 and the middle holes 23 are respectively located at two ends of the flared hole 24, and the extension direction of the extension holes 25 is the same as the extension direction of the middle hole 23, that is, the extension holes 25 and the middle holes 23 are both extended between the inlet side 11 and the outlet side 14 and are used for blocking heat of the inlet side 11 and the outlet side 14.

As shown in fig. 3, the extension hole 25 is a long hole, and the extension hole 25 extends between the inlet 12 and the outlet 15. As shown in fig. 3, the extending direction of the extending hole 25 is perpendicular to the connecting line direction of the inlet 12 and the outlet 15, and the extending hole 25 can separate the area of the inlet 12 from the area of the outlet 15, so that an insulating space exists between the two, thereby ensuring the heat exchange performance of the plate heat exchanger 100.

In other embodiments, as shown in fig. 4, there are two extension holes 25, two extension holes 25 are respectively connected to the two flared holes 24, one of the two extension holes 25 extends between the inlet 12 and the outlet 15, and the other of the two extension holes 25 extends between the first flow port 13 and the second flow port 16.

As shown in fig. 4, two extension holes 25 are connected to the left and right ends of the middle hole 23, respectively, one of the two extension holes 25 is connected to the flared hole 24 located at the left end of the middle hole 23, the extension hole 25 extends between the inlet 12 and the outlet 15, the other of the two extension holes 25 is connected to the flared hole 24 located at the right end of the middle hole 23, and the extension hole 25 extends between the first flow passing port 13 and the second flow passing port 16. That is, the inlet 12 and the outlet 15, and the first and the

second outlets

13 and 16, respectively, are insulated by the two extension holes 25, thereby achieving effective insulation of the inlet side 11 and the outlet side 14.

As shown in fig. 4, the middle hole 23, the two flared holes 24 and the two extension holes 25 communicate between the inlet side 11 and the outlet side 14 to form a continuous insulation space, and as shown in fig. 4, the two extension holes 25 extend to both ends of the plate heat exchanger 100, that is, the insulation space completely separates the inlet side 11 from the outlet side 14, thereby greatly reducing heat exchange between the inlet side 11 and the outlet side 14, increasing the temperature difference between the inlet side 11 and the outlet side 14, and improving the heat exchange performance of the plate heat exchanger 100.

In some embodiments, as shown in fig. 5, the heat exchanger plate 1 comprises a first plate 17 and a second plate 18 arranged at a distance, the first plate 17 is formed with an inlet side 11, the second plate 18 is formed with an outlet side 14, and the gap between the first plate 17 and the second plate 18 is formed as a hollow insulation hole 2. That is, when the plate heat exchanger 100 is constructed, the first plate 17 integrated with the inflow side 11 and the second plate 18 integrated with the outflow side 14 are spaced apart from each other, so that a gap therebetween is used to realize heat isolation, thereby reducing heat exchange between the inflow side 11 and the outflow side 14, improving the cooling effect of the heat exchanger, and preventing functions of the hot side region and the cold side region from interfering with each other.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plate heat exchanger (100), characterized in that it comprises:

the heat exchanger plate comprises a plurality of heat exchanger plates (1) which are sequentially stacked, wherein each heat exchanger plate (1) comprises an inflow side (11) and an outflow side (14), the inflow side (11) is provided with an inflow port (12) and a first overflowing port (13), the outflow side (14) is provided with an outflow port (15) and a second overflowing port (16), the inflow port (12) is communicated with the first overflowing port (13), the first overflowing port (13) is communicated with the second overflowing port (16) through a pipeline, the second overflowing port (16) is communicated with the outflow port (15), a hollow heat insulation hole (2) is arranged between the inflow side (11) and the outflow side (14), and at least part of the hollow heat insulation hole (2) is located in a middle area between the inflow side (11) and the outflow side (14).

2. A plate heat exchanger (100) according to claim 1, wherein the hollow porthole (2) comprises a first porthole (21) and a second porthole (22) on both sides of the first porthole (21), the first porthole (21) and the second porthole (22) being arranged spaced apart between the inlet side (11) and the outlet side (14).

3. A plate heat exchanger (100) according to claim 2, wherein the length of the second porthole (22) extending in the direction of the connection of the inlet side (11) and the outlet side (14) is larger than the length of the first porthole (21) extending in the direction of the connection of the inlet side (11) and the outlet side (14).

4. A plate heat exchanger (100) according to claim 2, wherein the distance from the second porthole (22) to the first porthole (21) on the first side of the first porthole (21) is the same as the distance from the second porthole (22) to the first porthole (21) on the second side of the first porthole (21).

5. A plate heat exchanger (100) according to claim 1, wherein the hollow porthole (2) comprises a central bore (23) and a flared bore (24) connected to an end of the central bore (23), the central bore (23) being located in a middle region between the inlet side (11) and the outlet side (14), the flared bore (24) having a width larger than the width of the central bore (23).

6. A plate heat exchanger (100) according to claim 5, wherein there are two flared holes (24), two flared holes (24) are connected to both ends of the middle hole (23), respectively, and the two flared holes (24) are symmetrically disposed at both ends of the middle hole (23).

7. A plate heat exchanger (100) according to claim 5, wherein the hollow insulating aperture (2) further comprises an extension aperture (25), the extension aperture (25) being in connection with the flared aperture (24) and the extension aperture (25) being located at an end of the flared aperture (24) remote from the intermediate aperture (23).

8. A plate heat exchanger (100) according to claim 7, wherein the extension hole (25) extends between the inlet opening (12) and the outlet opening (15).

9. A plate heat exchanger (100) according to claim 7, wherein there are two extension holes (25), wherein two extension holes (25) are connected to two flared holes (24), respectively, wherein one of the two extension holes (25) extends between the inlet port (12) and the outlet port (15) and the other of the two extension holes (25) extends between the first (13) and the second (16) flow port.

10. A plate heat exchanger (100) according to claim 1, wherein the heat exchanger plate (1) comprises a first plate block (17) and a second plate block (18) arranged at a distance, the first plate block (17) being formed with the inlet side (11), the second plate block (18) being formed with the outlet side (14), and a gap between the first plate block (17) and the second plate block (18) being formed as the hollow insulation hole (2).