CN112304125A

CN112304125A - Heat exchanger

Info

Publication number: CN112304125A
Application number: CN201910707527.0A
Authority: CN
Inventors: 张伟伟; 董军启; 史鑫; 黄宁杰
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Hangzhou Sanhua Research Institute Co Ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2021-02-02
Anticipated expiration: 2039-08-01
Also published as: CN112304125B

Abstract

The application belongs to the technical field of heat exchange, and discloses a heat exchanger which comprises a pressing plate assembly and at least two groups of heat exchange assemblies, wherein the first assembly of each heat exchange assembly comprises a first heat exchange tube and two first collecting pipes which are respectively communicated with two ends of the first heat exchange tube; the non-blocked ends of the first collecting pipes positioned on the same side of the at least two groups of heat exchange assemblies are communicated with the same first pressing plate, and the non-blocked ends of the second collecting pipes positioned on the same side of the at least two groups of heat exchange assemblies are communicated with the same second pressing plate. The utility model provides a heat exchanger, same first clamp plate communicate in the same one side first pressure manifold of at least two sets of heat exchange assemblies, and same second clamp plate communicates in the same one side second pressure manifold of at least two sets of heat exchange assemblies, can simplify the assembly of at least two sets of heat exchange assemblies, the processing and the assembly of the heat exchanger of being convenient for.

Description

Heat exchanger

Technical Field

The application relates to the technical field of heat exchange, in particular to a heat exchanger.

Background

The existing intermediate heat exchanger mostly adopts a sleeve type, namely, a heat exchange assembly is provided with an inner pipe and an outer pipe, the inner pipe and the outer pipe are coaxially and concentrically arranged and are separated from each other, a high-temperature high-pressure (or low-temperature low-pressure) liquid (or gaseous) refrigerant flows in the inner pipe, a low-temperature low-pressure (or high-temperature high-pressure) gaseous (or liquid) refrigerant flows in the outer pipe, and the inner pipe and the outer pipe mutually transfer heat.

The related intermediate heat exchanger comprises a group of heat exchange assemblies, each collecting pipe of each heat exchange assembly is communicated with one pressing plate, and each heat exchange assembly is provided with a plurality of parts and is not beneficial to processing and assembling.

Disclosure of Invention

An object of the application is to provide a heat exchanger that processing and assembly are comparatively simple.

To achieve the purpose, the following technical scheme is adopted in the application:

a heat exchanger comprising a platen assembly and at least two sets of heat exchange assemblies, wherein:

each heat exchange assembly comprises a first assembly and a second assembly, the first assembly comprises a first heat exchange tube and two first collecting pipes which are respectively communicated with two ends of the first heat exchange tube, the second assembly comprises a second heat exchange tube and two second collecting pipes which are respectively communicated with two ends of the second heat exchange tube, and one end of each first collecting pipe and one end of each second collecting pipe are respectively blocked;

the pressure plate assembly comprises a first pressure plate and a second pressure plate, one end, which is not blocked, of the first collecting pipe, which is positioned on the same side of at least two groups of heat exchange assemblies, is communicated with the same first pressure plate, and one end, which is not blocked, of the second collecting pipe, which is positioned on the same side of at least two groups of heat exchange assemblies, is communicated with the same second pressure plate.

Optionally, the first pressure plate and the second pressure plate each include a first channel and at least two second channels communicated with the first channel;

the second channel of the first pressure plate is communicated with the inner cavity of the first collecting pipe, and the second channel of the second pressure plate is communicated with the inner cavity of the second collecting pipe.

Optionally, the first collecting pipe comprises a first end and a second end, the second collecting pipe comprises a first end and a second end, the first end of the first collecting pipe and the first end of the second collecting pipe are located at the same side, and the second end of the first collecting pipe and the second end of the second collecting pipe are located at the same side;

the first ends of the first collecting pipes on the same side of at least two groups of heat exchange assemblies are plugged, the second ends of the second collecting pipes on the same side of the heat exchange assemblies are plugged, and the first pressing plates and the second pressing plates are arranged at intervals.

the first ends of the first collecting pipes on the same side of at least two groups of heat exchange assemblies are plugged, the first ends of the second collecting pipes on the same side of the heat exchange assemblies are plugged, and the first pressing plates and the second pressing plates are arranged at intervals.

the first ends of the first collecting pipes on the same side of at least two groups of heat exchange assemblies are blocked, the first ends of the second collecting pipes on the same side of the heat exchange assemblies are blocked, and the first pressing plate and the second pressing plate are integrally formed.

Optionally, the heat exchange assembly further includes an end cover, and the end cover is used for blocking one end of the first header not connected to the first pressure plate and one end of the second header not connected to the second pressure plate.

Optionally, the first module comprises at least one first heat exchange tube, and the second module comprises at least one second heat exchange tube; at least one first heat exchange tube is arranged between every two adjacent second heat exchange tubes, or at least one second heat exchange tube is arranged between every two adjacent first heat exchange tubes, and the first collecting pipes are attached to the second collecting pipes.

Optionally, the end of the first heat exchange tube penetrates through the second collecting pipe, and along the length direction of the first heat exchange tube, the first collecting pipe is arranged outside the second collecting pipe, the second collecting pipe is provided with a first hole and a second hole, the end of the first heat exchange tube penetrates through the first hole and the second hole in sequence and is communicated with the inner cavity of the first collecting pipe, and the end of the second heat exchange tube penetrates through the first hole and is communicated with the inner cavity of the second collecting pipe.

Optionally, the first header is provided with a third hole, and the end of the first heat exchange tube penetrates through the third hole and is accommodated in the inner cavity of the first header.

Optionally, the heat exchanger further includes a boss, and the boss is located between the first header and the second header;

the boss is arranged on the outer wall of the first collecting pipe and is attached to the outer wall of the second collecting pipe;

or the boss is arranged on the outer wall of the second collecting pipe and is attached to the outer wall of the first collecting pipe;

or the boss is attached to the outer wall of the first collecting pipe and the outer wall of the second collecting pipe.

This application is through setting up first clamp plate and second clamp plate, and same first clamp plate communicates in the first pressure manifold of at least two sets of heat exchange assemblies with one side, and same second clamp plate communicates in the second pressure manifold of at least two sets of heat exchange assemblies with one side, and it can simplify the assembly of at least two sets of heat exchange assemblies, the processing and the assembly of the heat exchanger of being convenient for.

Drawings

FIG. 1 is a schematic diagram of a heat exchanger according to the present application;

FIG. 2 is an exploded schematic view of a heat exchanger according to the present application;

FIG. 3 is a schematic illustration of an assembly of a first heat exchange tube and a second heat exchange tube as described herein;

fig. 4 is a schematic structural view of a second header according to the present application;

fig. 5 is a schematic structural diagram of a first header according to the present application;

FIG. 6 is an exploded schematic view of a second heat exchanger of the type described herein;

FIG. 7 is an exploded schematic view of a third heat exchanger according to the present application;

FIG. 8 is an exploded schematic view of a fourth heat exchanger according to the present application;

FIG. 9 is a cross-sectional view of a first platen as described herein;

fig. 10 is a schematic view of the assembly of a first platen and a first manifold as described herein.

In the figure:

1. a first header; 11. a third aperture; 2. a second header; 21. a first hole; 22. a second hole; 3. a first platen; 4. a second platen; 5. an end cap; 6. a first heat exchange tube; 7. a second heat exchange tube; 8. a boss; 9. a third press plate; 10. a first channel; 20. a second channel; 30. a third channel.

Detailed Description

In order to make the technical problems solved, technical solutions adopted, and technical effects achieved by the present application clearer, the following will describe technical solutions of embodiments of the present application in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The application provides a heat exchanger, including at least two sets of heat exchange assemblies and clamp plate subassembly, the clamp plate subassembly includes first clamp plate 3 and second clamp plate 4. Reference may be made to fig. 1 and 2, wherein:

the heat exchange assemblies are at least two groups, and the at least two groups of heat exchange assemblies are arranged in an up-down stacked state. Each group of heat exchange assemblies comprises a first assembly and a second assembly, wherein the first assembly comprises at least one first heat exchange tube 6 and two first collecting pipes 1 respectively communicated with two ends of each first heat exchange tube 6, namely, one first collecting pipe 1 is communicated with the same end of all the first heat exchange tubes 6, and the other first collecting pipe 1 is communicated with the other end of all the first heat exchange tubes 6. The first heat exchange tube 6 is connected with the first collecting pipe 1 through brazing. One end of the first collecting pipe 1 is connected to the first pressing plate 3 as a flow port for a heat exchange medium, and the other end is closed.

The second assembly comprises at least one second heat exchange tube 7 and two second collecting pipes 2 respectively communicated with two ends of each second heat exchange tube 7, namely, one second collecting pipe 2 is communicated with the same end of all the second heat exchange tubes 7, and the other second collecting pipe 2 is communicated with the other ends of all the second heat exchange tubes 7. The second heat exchange tube 7 is connected with the second collecting pipe 2 through brazing. Correspondingly, one end of the second collecting pipe 2 is also connected with the second pressing plate 4 to be used as a flow port of the heat exchange medium, and the other end is sealed.

In this embodiment, the same first pressing plate 3 is communicated with the first collecting pipes 1 on the same side of the at least two groups of heat exchange assemblies, and the same second pressing plate 4 is communicated with the second collecting pipes 2 on the same side of the at least two groups of heat exchange assemblies, so that the assembly of the at least two groups of heat exchange assemblies can be simplified, and the processing and the assembly of the heat exchanger are facilitated.

In this embodiment, the first component circulates a high-temperature and high-pressure heat exchange medium, and the high-temperature and high-pressure heat exchange medium flows into the first heat exchange tube 6 from one of the first collecting pipes 1 and then flows out through the other first collecting pipe 1. The second assembly circulates a low-temperature and low-pressure heat exchange medium, and the low-temperature and low-pressure heat exchange medium flows into the second heat exchange tube 7 from one of the second collecting pipes 2 and then flows out from the other second collecting pipe 2. Optionally, the flow direction of the heat exchange medium in the first assembly is opposite to the flow direction of the heat exchange medium in the second assembly, that is, countercurrent heat exchange is formed, so that the heat exchange effect can be improved. Of course, the flow direction of the heat exchange medium in the first assembly and the flow direction of the heat exchange medium in the second assembly can be the same, and heat exchange can be achieved, so that the application is not limited.

It should be understood here that the first module may also be configured to circulate a low-temperature and low-pressure heat exchange medium, and the second module may be configured to circulate a high-temperature and high-pressure heat exchange medium.

In this embodiment, in each group of heat exchange assemblies, the number of the second heat exchange tubes 7 is greater than that of the first heat exchange tubes 6, and at this time, one first heat exchange tube 6 is arranged between two adjacent second heat exchange tubes 7, so as to realize heat exchange between a low-temperature low-pressure heat exchange medium in the second heat exchange tubes 7 and a high-temperature high-pressure heat exchange medium in the first heat exchange tubes 6. And the second heat exchange tube 7 is in direct contact with the first heat exchange tube 6, so that the contact thermal resistance is smaller, and the heat transfer efficiency is improved. It can be understood that, the heat exchange assembly of the present embodiment may also have the number of the first heat exchange tubes 6 larger than the number of the second heat exchange tubes 7, and at this time, one second heat exchange tube 7 is disposed between two adjacent first heat exchange tubes 6, which can still improve the heat transfer efficiency. The number of the first heat exchange tubes 6 can be the same as that of the second heat exchange tubes 7, and at the moment, the first heat exchange tubes 6 and the second heat exchange tubes 7 are required to be alternately arranged.

Optionally, the second heat exchange tubes 7 and the first heat exchange tubes 6 are alternately stacked and fixed together by brazing, for example, the first heat exchange tubes 6 are arranged as one tube, and the second heat exchange tubes 7 are arranged as two tubes, as shown in fig. 3, the second heat exchange tubes 7 and the first heat exchange tubes 6 are sequentially of a structure of the second heat exchange tubes 7, the first heat exchange tubes 6 and the second heat exchange tubes 7 from top to bottom. Through this structure, when realizing the heat transfer for whole heat exchange assembly's structure is compacter, and then makes the structure of the heat exchanger that has two at least heat exchange assembly compacter.

Optionally, in other embodiments, the second heat exchange tubes 7 and the first heat exchange tubes 6 may not be alternately stacked, for example, the second heat exchange tubes 7 and the first heat exchange tubes 6 may have a structure of one second heat exchange tube 7, two first heat exchange tubes 6, and one second heat exchange tube 7 sequentially from top to bottom, or the first heat exchange tubes 6 and the second heat exchange tubes 7 may be arranged in different zones, at this time, it is only necessary that the first heat exchange tubes 6 and the second heat exchange tubes 7 can perform heat exchange.

It can be understood that the first heat exchange tubes 6 and the second heat exchange tubes 7 of the present embodiment may also be arranged in a row alternately along the length direction of the first collecting pipe 1, in which case the first heat exchange tubes 6 and the second heat exchange tubes 7 are arranged from one end of the first collecting pipe 1 to the other end. The structure can also realize heat exchange, and the structure of the whole heat exchange assembly is more compact.

In this embodiment, the first heat exchange tube 6 and the second heat exchange tube 7 may be made separately and then brazed into a whole, or may be integrally formed (for example, a first heat exchange channel may be formed on one component to form the first heat exchange tube 6, and a second heat exchange channel may be formed to form the second heat exchange tube 7).

In this embodiment, the first collecting pipe 1 on each side of each group of heat exchange assemblies is disposed outside the second collecting pipe 2 on the side, the first heat exchange pipe 6 passes through the second collecting pipe 2 and is communicated with the inner cavity of the first collecting pipe 1, and the second heat exchange pipe 7 is communicated with the inner cavity of the second collecting pipe 2. Alternatively, as shown in fig. 4, the second header 2 may be provided with a first hole 21 and a second hole 22. As shown in fig. 5, the first header 1 is provided with a third hole 11, optionally, centers of the first hole 21, the second hole 22 and the third hole 11 may be overlapped, and shapes of the first hole 21, the second hole 22 and the third hole 11 may be rectangular holes, oblong holes, or other holes capable of accommodating the shapes of the first heat exchange tube 6 and/or the second heat exchange tube 7.

In the present embodiment, the number of the first holes 21 is one, all the first heat exchange tubes 6 and all the second heat exchange tubes 7 are disposed through the first holes 21, and the height L1 of the first holes 21 is greater than or equal to the sum of the thicknesses of all the first heat exchange tubes 6 and all the second heat exchange tubes 7 corresponding thereto. Taking the example that two first heat exchange tubes 6 are provided and one second heat exchange tube 7 is provided, the height of the first hole 21 should be greater than or equal to the sum of the thicknesses of the two first heat exchange tubes 6 and the thickness of 1 second heat exchange tube 7. In addition, it should be noted that after all the first heat exchange tubes 6 and all the second heat exchange tubes 7 pass through the first holes 21, the peripheries of the first holes 21 need to be sealed with the outer walls of the first heat exchange tubes 6 and the second heat exchange tubes 7 by brazing. In this embodiment, the second heat exchange tube 7 passes through the first hole 21 and then communicates with the inner cavity of the second collecting pipe 2.

In this embodiment, the number of the second holes 22 and the number of the third holes 11 are equal to the number of the first heat exchanging pipes 6, the second holes 22 are disposed opposite to the third holes 11, and each of the first heat exchanging pipes 6 passes through the first hole 21, the second hole 22 and the third holes 11 and then communicates with the inner cavity of the first collecting pipe 1. Alternatively, the height of the third hole 11 may be the same as the height of the second hole 22, and the heights of the third hole 11 and the second hole 22 are both greater than or equal to the thickness of the first heat exchange tube 6, so that a part of the first heat exchange tube 6 can be accommodated.

It is understood that in another aspect of the present application, the number of the second holes 22 and the number of the third holes 11 may be smaller than the number of the first heat exchange tubes 6, and in this case, there are cases where a plurality of first heat exchange tubes 6 pass through the same second hole 22 and the same third hole 11 and communicate with the inner cavity of the first header 1. For example, the second heat exchange tube 7 and the first heat exchange tube 6 may have a structure of one second heat exchange tube 7, two first heat exchange tubes 6 and one second heat exchange tube 7 in sequence from top to bottom, and the two first heat exchange tubes 6 may pass through the same second hole 22 and the same third hole 11 and communicate with the inner cavity of the first collecting pipe 1.

Further, the heat exchanger of this embodiment may further include a boss 8, where the boss 8 is located between the first header 1 and the second header 2, and is used for making the first header 1 adhere to the second header 2. Specifically, as shown in fig. 5, the boss 8 of the present embodiment may be formed by extending the outer wall of the first header 1 toward the second header 2, the boss 8 is attached to the outer wall of the second header 2, and the third hole 11 is formed to penetrate through the boss 8.

Optionally, one end of the boss 8 extends to the blocked end (i.e., the first end) of the first collecting pipe 1, and the other end of the boss 8 has a certain distance from the unblocked end (i.e., the second end) of the first collecting pipe 1, where the distance is used to provide a space for installing the first pressing plate 3, so as to facilitate the installation of the first pressing plate 3.

Of course, it can be understood that the above-mentioned boss 8 may also be formed by extending the outer wall of the second collecting pipe 2 towards the direction of the first collecting pipe 1, at this time, the boss 8 is attached to the outer wall of the first collecting pipe 1, and the second hole 22 is disposed through the boss 8. The boss 8 can also be used as an independent part to be attached to the outer wall of the first collecting pipe 1 and the outer wall of the second collecting pipe 2, and at the moment, a hole needs to be formed in the boss 8 to allow the end of the first heat exchange pipe 6 to penetrate through the hole.

As another embodiment of the present application, the first header 1 on each side of each group of heat exchange assemblies may also be disposed inside the second header 2 on that side, that is, the second header 2 is attached to the outer wall of the first header 1 through the boss 8. At this time, the first heat exchange tube 6 is communicated with the inner cavity of the first collecting pipe 1, and the second heat exchange tube 7 is communicated with the inner cavity of the second collecting pipe 2 through the first collecting pipe 1 and the boss 8; or the first heat exchange tube 6 is communicated with the inner cavity of the first collecting pipe 1, the second heat exchange tube 7 is communicated with the inner cavity of the second collecting pipe 2, and the boss 8 is not provided with a hole.

In this embodiment, the first collecting pipe 1 includes a first end and a second end, the second collecting pipe 2 includes a first end and a second end, the first end of the first collecting pipe 1 and the first end of the second collecting pipe 2 are located at the same side, and the second end of the first collecting pipe 1 and the second end of the second collecting pipe 2 are located at the same side.

The first end of the first collecting pipe 1 is blocked, and the second end is communicated with a first pressing plate 3; the second end of the second collecting pipe 2 is sealed, the first end is communicated with a second pressing plate 4, and the first pressing plate 3 and the second pressing plate 4 are arranged at intervals.

The heat exchange assembly further comprises an end cover 5, and the end cover 5 is used for plugging the first end of the first collecting pipe 1 and the second end of the second collecting pipe 2. In the present embodiment, each first header 1 is plugged by one end cap 5, and each second header 2 is plugged by one end cap 5. Of course, at least two first headers 1 may also be blocked by one end cap 5, and at least two second headers 2 may also be blocked by one end cap 5.

Specifically, the second ends of the first collecting pipes 1 on the same side of at least two groups of heat exchange assemblies are communicated with the same first pressing plate 3, and the first ends of the second collecting pipes 2 on the same side of at least two groups of heat exchange assemblies are communicated with the same second pressing plate 4. In this embodiment, the first pressing plate 3 is used for supplying the inflow and outflow of the heat exchange medium with high temperature and high pressure, and the second pressing plate 4 is used for supplying the inflow and outflow of the heat exchange medium with low temperature and low pressure.

In other embodiments of the present application, the connection manner of the first pressing plate 3 and the second pressing plate 4 may be as follows:

the first method comprises the following steps: as shown in fig. 6, the first end of the first header 1 on the same side of the at least two groups of heat exchange assemblies is plugged, and the first end of the second header 2 on the same side of the at least two groups of heat exchange assemblies is plugged, at this time, the second end of the first header 1 on the same side of the heat exchange assemblies is communicated with the first pressure plate 3, the second end of the second header 2 on the same side of the heat exchange assemblies is communicated with the second pressure plate 4, and the first pressure plate 3 and the second pressure plate 4 are arranged at intervals. At this time, the end caps 5 respectively seal the first end of the first collecting pipe 1 and the first end of the second collecting pipe 2.

And the second method comprises the following steps: as shown in fig. 7, the first pressure plate 3 and the second pressure plate 4 are integrally formed into a third pressure plate 9, that is, the second end of the first header 1 and the second end of the second header 2 on the same side of the heat exchange assembly are both communicated with the integrally formed first pressure plate 3 and second pressure plate 4 (i.e., the third pressure plate 9). The end covers 5 respectively seal the first end of the first collecting pipe 1 and the first end of the second collecting pipe 2. The structure can reduce the processing procedures of the pressing plate.

And the third is that: as shown in fig. 8, the first end of the first header 1 on one side of at least two groups of heat exchange assemblies is blocked, the second end is communicated with the first pressure plate 3, the second end of the first header 1 on the other side is blocked, and the first end is communicated with the first pressure plate 3; the first end of the second collecting pipe 2 on the same side is blocked, the second end is communicated with the second pressing plate 4, the second end of the second collecting pipe 2 on the other side is blocked, and the first end is communicated with the second pressing plate 4. At this time, the end caps 5 respectively seal the first end of the first collecting pipe 1 and the second end of the second collecting pipe 2.

As shown in fig. 9 and 10, the first pressing plate 3 includes a first channel 10 and at least two second channels 20 communicated with the first channel 10, wherein the first channel 10 can be connected to a pipe through which a heat exchange medium flows, and the second channels 20 are communicated with the first header 1. The number of the second channels 20 of the first pressing plate 3 is the same as the total number of the first collecting pipes 1 on the same side of at least two groups of heat exchange assemblies, so that all the first collecting pipes 1 on the same side are communicated through one first pressing plate 3.

In the present embodiment, the structure of the second presser plate 4 is the same as that of the first presser plate 3, and the structure of the second presser plate 4 will be described as an example. The second platen 4 comprises a first channel 10 and at least two second channels 20 communicating with the first channel 10, the second channels 20 communicating with the second header 2. The number of the second channels 20 of the second presser plate 4 is the same as the total number of the second headers 2 on the same side of the heat exchange module, so as to realize the communication of all the second headers 2 of different groups of heat exchange modules on the same side through one second presser plate 4.

Further, the second pressing plate 4 of the present embodiment further includes a third channel 30, and the third channel 30 is disposed between the first channel 10 and the second channel 20, and is used for communicating at least two of the second channels 20 with the first channel 10. The length of the third channel 30 is greater than or equal to the width of the cross-section of the first channel 10, optionally the third channel 30 is a kidney-shaped hole. Furthermore, the length of the third channel 30 is less than or equal to the maximum distance W between two outermost second channels 20 of the at least two second channels 20, and after the heat exchange medium flows into the third channel 30 through the first channel 10, the third channel 30 can enable the heat exchange medium to uniformly flow into the plurality of second channels 20, thereby improving the heat exchange effect.

It will be appreciated that in this embodiment, the third passage 30 may be a hole of other shape, which is sufficient to communicate with all the second passages 20. The arrangement of the second passages 20 may be a row arrangement as shown in fig. 9, or may be other arrangements, mainly related to the arrangement structure of the first header 1 or the second header 2 communicated with the second passages 20, for example, if the arrangement shape of the first header 1 communicated with the second passages 20 of the first platen 3 is triangular, the arrangement shape of the corresponding second passages 20 is also triangular. It should be noted that the arrangement of the second channels 20 needs to satisfy the requirement of uniformly distributing the heat exchange medium flowing in through the third channels 30, so as to achieve the purpose of improving the heat exchange effect.

In this embodiment, furthermore, the inlet of the first component and the inlet of the second component are located on two sides of the heat exchange component, the high-temperature high-pressure heat exchange medium enters from the first collecting pipe 1 on one side of the heat exchange component, the low-temperature low-pressure heat exchange medium enters from the other side of the heat exchange component, and the high-temperature high-pressure heat exchange medium and the low-temperature low-pressure heat exchange medium form countercurrent heat exchange in the flowing process, so that the heat exchange amount can be effectively increased, and the heat exchange effect is improved.

When the heat exchanger of the embodiment is used, two sides of the heat exchanger are defined as a first side and a second side, a high-temperature and high-pressure heat exchange medium enters from the first channel 10 of the first pressing plate 3 on the first side of the heat exchanger and is uniformly divided into the second channels 20, then flows into the first collecting pipe 1 communicated with each second channel 20, enters the first heat exchange pipe 6, finally flows into the second channel 20 of the first pressing plate 3 on the second side of the heat exchanger, and is converged to the first channel 10 of the first pressing plate 3, and finally flows out of the first pressing plate 3, and in the process, the temperature of the high-temperature and high-pressure heat exchange medium is reduced.

Meanwhile, the low-temperature and low-pressure heat exchange medium enters from the first channel 10 of the second pressing plate 4 on the second side of the heat exchanger and is uniformly distributed to the second channels 20, then flows into the second collecting pipe 2 communicated with each second channel 20, enters the second heat exchange pipe 7, finally flows into the second channel 20 of the second pressing plate 4 on the first side of the heat exchanger, is converged to the first channel 10 of the second pressing plate 4, and finally flows out of the second pressing plate 4, and in the process, the temperature of the low-temperature and low-pressure heat exchange medium is increased.

When the high-temperature high-pressure heat exchange medium flows into the first heat exchange tube 6, the low-temperature low-pressure heat exchange medium flows into the second heat exchange tube 7, and the high-temperature high-pressure heat exchange medium and the low-temperature low-pressure heat exchange medium exchange heat through the first heat exchange tube 6 and the second heat exchange tube 7.

This application is through setting up first clamp plate 3 and second clamp plate 4, same first clamp plate 3 communicates in the first pressure manifold 1 of two sets of heat transfer subassemblies with one side at least, same second clamp plate 4 communicates in the second pressure manifold 2 of two sets of heat transfer subassemblies with one side at least, on the basis of having realized the thermal high-efficient exchange of heat medium of high-temperature high pressure and heat medium of low temperature low pressure, can also simplify the assembly of two sets of at least heat transfer subassemblies, be convenient for processing and assembly of heat exchanger, and the structure of the heat exchanger after the assembly is compacter.

It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the present application. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. The utility model provides a heat exchanger which characterized in that, includes clamp plate subassembly and at least two sets of heat exchange assemblies, wherein:

each heat exchange assembly comprises a first assembly and a second assembly, the first assembly comprises a first heat exchange tube (6) and two first collecting pipes (1) respectively communicated with two ends of the first heat exchange tube (6), the second assembly comprises a second heat exchange tube (7) and two second collecting pipes (2) respectively communicated with two ends of the second heat exchange tube (7), and one end of each first collecting pipe (1) and one end of each second collecting pipe (2) are respectively blocked;

the pressure plate assembly comprises a first pressure plate (3) and a second pressure plate (4), one end, which is not blocked, of the first collecting pipe (1) which is positioned on the same side of at least two groups of heat exchange assemblies is communicated with the same first pressure plate (3), and one end, which is not blocked, of the second collecting pipe (2) which is positioned on the same side of at least two groups of heat exchange assemblies is communicated with the same second pressure plate (4).

2. The heat exchanger according to claim 1, characterized in that the first platen (3), the second platen (4) each comprise one first channel (10) and at least two second channels (20) communicating with the first channel (10);

the second channel (20) of the first pressing plate (3) is communicated with the inner cavity of the first collecting pipe (1), and the second channel (20) of the second pressing plate (4) is communicated with the inner cavity of the second collecting pipe (2).

3. The heat exchanger according to claim 1 or 2, characterized in that the first header (1) comprises a first end and a second end, the second header (2) comprises a first end and a second end, the first end of the first header (1) and the first end of the second header (2) are located on the same side, the second end of the first header (1) and the second end of the second header (2) are located on the same side;

the first ends of the first collecting pipes (1) on the same side of at least two groups of heat exchange assemblies are plugged, the second ends of the second collecting pipes (2) on the same side of the heat exchange assemblies are plugged, and the first pressing plates (3) and the second pressing plates (4) are arranged at intervals.

4. The heat exchanger according to claim 1 or 2, characterized in that the first header (1) comprises a first end and a second end, the second header (2) comprises a first end and a second end, the first end of the first header (1) and the first end of the second header (2) are located on the same side, the second end of the first header (1) and the second end of the second header (2) are located on the same side;

the first ends of the first collecting pipes (1) on the same side of at least two groups of heat exchange assemblies are plugged, the first ends of the second collecting pipes (2) on the same side of the heat exchange assemblies are plugged, and the first pressing plates (3) and the second pressing plates (4) are arranged at intervals.

5. The heat exchanger according to claim 1 or 2, characterized in that the first header (1) comprises a first end and a second end, the second header (2) comprises a first end and a second end, the first end of the first header (1) and the first end of the second header (2) are located on the same side, the second end of the first header (1) and the second end of the second header (2) are located on the same side;

the first ends of the first collecting pipes (1) on the same side of at least two groups of heat exchange assemblies are plugged, the first ends of the second collecting pipes (2) on the same side of the heat exchange assemblies are plugged, and the first pressing plates (3) and the second pressing plates (4) are integrally formed.

6. The heat exchanger according to claim 1 or 2, wherein the heat exchange assembly further comprises an end cap (5), and the end cap (5) is used for blocking one end of the first header (1) which is not connected with the first pressing plate (3) and one end of the second header (2) which is not connected with the second pressing plate (4).

7. The heat exchanger according to claim 1 or 2,

the first module comprises at least one first heat exchange tube (6) and the second module comprises at least one second heat exchange tube (7);

the heat exchanger is characterized in that at least one first heat exchange tube (6) is arranged between every two adjacent second heat exchange tubes (7), or at least one second heat exchange tube (7) is arranged between every two adjacent first heat exchange tubes (6), and the first collecting pipe (1) is attached to the second collecting pipe (2).

8. The heat exchanger according to claim 7, wherein the end of the first heat exchange tube (6) penetrates through the second collecting pipe (2), the first collecting pipe (1) is arranged outside the second collecting pipe (2) along the length direction of the first heat exchange tube (6), the second collecting pipe (2) is provided with a first hole (21) and a second hole (22), the end of the first heat exchange tube (6) sequentially penetrates through the first hole (21) and the second hole (22) and is communicated with the inner cavity of the first collecting pipe (1), and the end of the second heat exchange tube (7) penetrates through the first hole (21) and is communicated with the inner cavity of the second collecting pipe (2).

9. A heat exchanger according to claim 8, characterized in that the first header (1) is provided with a third hole (11), and the end of the first heat exchanger tube (6) is received in the inner cavity of the first header (1) through the third hole (11).

10. The heat exchanger according to claim 7, characterized in that it further comprises a boss (8), said boss (8) being located between said first header (1) and said second header (2);

the boss (8) is arranged on the outer wall of the first collecting pipe (1), and the boss (8) is attached to the outer wall of the second collecting pipe (2);

or the boss (8) is arranged on the outer wall of the second collecting pipe (2), and the boss (8) is attached to the outer wall of the first collecting pipe (1);

or the boss (8) is attached to the outer wall of the first collecting pipe (1) and the outer wall of the second collecting pipe (2).