Air inlet structure, compressor and heat exchange system
By designing an intake structure including a tee joint and multiple pipe sections, the problem of poor versatility of the intake pipe in the prior art is solved, and the intake structure suitable for different compressors is realized, which improves versatility and noise reduction effect.
Patent Information
- Application Number
- CN202422084116.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The intake pipes in the prior art have poor versatility and cannot effectively achieve dimensional differentiation at different pipe sections. There are challenges in designing the intake structure suitable for different compressors.
An air intake structure including a three-way joint, a connecting pipe section, a first branch pipe section and a second branch pipe section is designed. The refrigerant gas is diverted to two cylinders through the three-way joint, forming a split structure, and the pipe sections and joints of different specifications can be selected for assembly according to needs.
It improves the versatility of the air intake structure, makes it suitable for different compressors, enhances the adaptability to different size requirements, and reduces the noise of the whole machine.
Smart Images
Figure CN223035261U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, and particularly relates to an air intake structure, a compressor and a heat exchange system. Background Art
[0002] In an air-conditioning system, a rolling piston compressor mainly consists of a pump body, a housing, a liquid reservoir, a motor, etc. The liquid reservoir has functions such as liquid storage, oil-gas separation, and oil return. These functions can be completely replaced by an oil separator and a gas separator in the air-conditioning system, so that the liquid reservoir on the compressor can be replaced by an air intake pipe. Some compressors have two cylinders formed therein, and the air intake pipe is connected to the two cylinders through two air intake pipe sections respectively. However, the air intake pipe in the prior art has poor versatility, and for different compressors, it is not possible to well achieve size differentiation at different pipe sections of the air intake pipe. Summary of the Utility Model
[0003] The main object of the utility model is to propose an air intake structure, a compressor and a heat exchange system, aiming to improve the versatility of the air intake structure.
[0004] To achieve the above object, the air intake structure proposed by the utility model is used for a compressor with two cylinders. The air intake structure includes a tee joint, and the tee joint has three communication ports.
[0005] One of the communication ports is connected with a connecting pipe section for introducing air flow.
[0006] Another communication port is connected with a first branch pipe section, and the end of the first branch pipe section far away from the tee joint is used for communicating with one of the cylinders of the compressor.
[0007] The remaining communication port is connected with a second branch pipe section, and the end of the second branch pipe section far away from the tee joint is used for communicating with the other cylinder of the compressor.
[0008] In an embodiment, the tee joint includes a joint main pipe section extending along a first direction. Two of the communication ports are respectively arranged at both ends of the joint main pipe section, and the remaining one communication port is arranged on the side of the joint main pipe section, and its axis extends along a second direction. Herein, the first direction and the second direction are two mutually perpendicular directions in a plane.
[0009] In an embodiment, the first branch pipe section is arranged as a bent pipe section, one end of the bent pipe section extends along the first direction, and the other end extends along the second direction; and / or,
[0010] The second branch pipe section is arranged as a straight pipe section and extends along the second direction.
[0011] In one embodiment, the main pipe section of the joint has a first side and a second side opposite to each other in the second direction, and the remaining one of the communication ports of the three-way joint is arranged on the second side of the main pipe section of the joint;
[0012] At least part of the connecting pipe section is bent toward one side of the second side of the three-way joint.
[0013] In one embodiment, at least part of the connecting pipe section is arranged as an inclined straight pipe section, and the included angle between the axis of the inclined straight pipe section and the axis of the main pipe section of the joint is A, where 140° < A < 180°.
[0014] In one embodiment, the material of the three-way joint includes brass; and / or,
[0015] The material of the connecting pipe section includes brass; and / or,
[0016] The material of the first branch pipe section includes brass; and / or,
[0017] The material of the second branch pipe section includes brass.
[0018] In one embodiment, the intake structure further includes a first pipe section and a second pipe section connected in sequence, the second pipe section is connected to one end of the connecting pipe section away from the three-way joint, and the first pipe section is connected to one end of the second pipe section away from the connecting pipe section.
[0019] In one embodiment, the inner diameter of the pipe orifice at at least one end of the second pipe section is set to be gradually reduced or gradually enlarged.
[0020] In one embodiment, the material of the first pipe section includes brass; and / or,
[0021] The material of the second pipe section includes steel.
[0022] The present utility model also provides a compressor, and the compressor includes the above-mentioned intake structure.
[0023] In one embodiment, the compressor includes a refrigeration compressor.
[0024] In one embodiment, a partition is arranged between the two cylinders of the compressor. In the first direction, the height of the cylinder is h, the thickness of the partition is h0, and the distance between the first branch pipe section and the second branch pipe section is L, where h + h0 < L < 1.5h + h0.
[0025] The present utility model also provides a heat exchange system, and the heat exchange system includes the above-mentioned compressor.
[0026] In the technical solution of the present utility model, the intake structure includes a connecting pipe section, a tee joint, a first branch pipe section, and a second branch pipe section, and can be respectively communicated with the two cylinders of the compressor through the first branch pipe section; refrigerant gas flows into the tee joint through the connecting pipe section, is split by the tee joint to the first branch pipe section and the second branch pipe section, and then is introduced into the two cylinders of the compressor through the first branch pipe section and the second branch pipe respectively; the connecting pipe section is communicated with the first branch pipe section and the second branch pipe section through the tee joint, forming a split structure, and different specifications of the connecting pipe section, the tee joint, the first branch pipe section, and the second branch pipe section can be selected according to needs to assemble the intake structure for different compressors, which can improve the versatility of the intake structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.
[0028] Figure 1 It is a schematic structural diagram of an embodiment of a compressor provided by the present utility model;
[0029] Figure 2 For Figure 1 the schematic structural diagram of the intake structure in
[0030] Figure 3 For Figure 2 the schematic structural diagram of the connection between the connecting pipe section, the tee joint, and the two branch pipe sections in
[0031] Explanation of the reference numerals in the drawings:
[0032] 1000, compressor;
[0033] 100, intake structure; 1, tee joint; 11, one of the communication ports; 12, the other communication port; 13, the remaining communication port; 2, connecting pipe section; 3, first branch pipe section; 4, second branch pipe section; 5, first pipe section; 6, second pipe section;
[0034] 200, housing;
[0035] 300, motor; 310, stator; 320, rotor;
[0036] 400, pump body; 410, cylinder; 420, partition; 430, crankshaft.
[0037] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments. Specific embodiments
[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0039] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0040] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0041] In an air-conditioning system, a rolling piston compressor mainly consists of a pump body, a housing, a liquid reservoir, a motor, etc. Among them, the liquid reservoir has functions such as liquid storage, oil-gas separation, and oil return. These functions can be completely replaced by an oil separator and a gas separator in the air-conditioning system, so that the liquid reservoir on the compressor can be replaced by an intake pipe. Some compressors have a double cylinder formed inside, and the intake pipe is connected to the two cylinders through two intake pipe segments respectively. However, the intake pipe in the prior art has poor versatility, and for different compressors, it is not possible to well achieve size differentiation at different pipe segments of the intake pipe.
[0042] The present utility model proposes an intake structure that can improve the versatility of the intake structure.Figure 1 Structural schematic diagram of an embodiment of a compressor provided by the present utility model; Figure 2 For Figure 1 Structural schematic diagram of the intake structure in; Figure 3 For Figure 2 Structural schematic diagram of the connection pipe section, tee joint and the connection of two branch pipe sections in;
[0043] It should be noted that the present utility model does not specifically limit the type of the compressor 1000. The compressor 1000 may be a rotary compressor, a piston compressor, a screw compressor, a centrifugal compressor, a scroll compressor, etc. In the drawings, the compressor 1000 is illustrated as a rotary compressor.
[0044] Please refer to Figure 1 , the rotary compressor includes a housing 200, a motor 300 and a pump body 400 disposed in the housing 200. The motor 300 and the pump body 400 are arranged along a first direction. The motor 300 includes a stator 310 and a rotor 320. The pump body 400 includes a cylinder 410 and a crankshaft 430. One end of the crankshaft 430 penetrates through the cylinder 410, and the other end is connected to the rotor 320. The motor 300 drives the crankshaft 430 to rotate to compress the refrigerant gas introduced into the cylinder 410.
[0045] Please refer to Figures 1 to 3 , in an embodiment of the present utility model, the intake structure 100 is used for a compressor 1000 having two cylinders 410. The intake structure 100 includes a tee joint 1, and the tee joint 1 has three communication ports. One of the communication ports 11 is connected to a connection pipe section 2 for introducing air flow. Another communication port 12 is connected to a first branch pipe section 3, and the end of the first branch pipe section 3 away from the tee joint 1 is used to communicate with one of the cylinders 410 of the compressor 1000. The remaining communication port is connected to a second branch pipe section 4, and the end of the second branch pipe section 4 away from the tee joint 1 is used to communicate with the other cylinder 410 of the compressor 1000.
[0046] In the technical solution of the present utility model, the intake structure 100 includes a connecting pipe section 2, a tee joint 1, a first branch pipe section 3, and a second branch pipe section 4. The first branch pipe section 3 can be respectively communicated with two cylinders 410 of the compressor 1000; the refrigerant gas flows into the tee joint 1 through the connecting pipe section 2, is split by the tee joint 1 to the first branch pipe section 3 and the second branch pipe section 4, and then enters the two cylinders 410 of the compressor 1000 through the first branch pipe section 3 and the second branch pipe respectively; the connecting pipe section 2 is communicated with the first branch pipe section 3 and the second branch pipe section 4 through the tee joint 1 to form a split structure. Different specifications of the connecting pipe section 2, the tee joint 1, the first branch pipe section 3, and the second branch pipe section 4 can be selected according to requirements to assemble the intake structure 100 for different compressors 100, which can improve the versatility of the intake structure 100. It can be understood that the connection between the connecting pipe section 2, the first branch pipe section 3, the second branch pipe section 4 and the three-way valve can be welded connection, threaded connection or bolt connection, etc., as long as the airtightness of the connection is ensured.
[0047] In an embodiment of the present utility model, the tee joint 1 includes a joint main pipe section extending along a first direction. Two of the communication ports are respectively arranged at both ends of the joint main pipe section, and the remaining one communication port 13 is arranged on the side of the joint main pipe section, and its axis extends along a second direction. Among them, the first direction and the second direction are two mutually perpendicular directions in a plane. The tee joint 1 is arranged in the above form, which is convenient for the assembly of the connecting pipe section 2, the first branch pipe section 3, the second branch pipe section 4 and the tee joint 1, and is also beneficial to the refrigerant gas flowing into the tee joint 1 and splitting to the first branch pipe section 3 and the second branch pipe section 4. It can be understood that the connection between the remaining one communication port 13 and the joint main pipe section can be set as an arc chamfer, so that the flow of the refrigerant gas to the remaining one communication port 13 is smoother, which is beneficial to reducing the overall machine noise of the compressor 1000.
[0048] Furthermore, in the embodiment of the present utility model, the first branch pipe section 3 is arranged as a bent pipe section. One end of the bent pipe section extends along the first direction, and the other end extends along the second direction. With the first branch pipe section 3 arranged in the above form, the first branch pipe section 3 is communicated with another communication port of the tee joint 1. One end of the first branch pipe section 3 far away from the tee joint 1 can be communicated with one of the cylinders 410 of the compressor 1000 (the cylinder 410 located below in the first direction). The flow of the refrigerant gas from the other communication port of the tee joint 1 to the first branch pipe section 3 is smoother, which is beneficial to reducing the overall machine noise of the compressor 1000.
[0049] In the embodiment of the present utility model, the second branch pipe section 4 is arranged as a straight pipe section and extends along the second direction. With the second branch pipe section 4 arranged in the above form, the second branch pipe section 4 is communicated with the remaining one communication port of the tee joint 1. One end of the second branch pipe section 4 far away from the tee joint 1 can be communicated with another cylinder 410 of the compressor 1000 (the cylinder 410 located above in the first direction). The structure is simple, and the flow of the refrigerant gas from the remaining one communication port of the tee joint 1 to the second branch pipe section 4 is smoother, which is beneficial to reducing the overall machine noise of the compressor 1000.
[0050] In the embodiment of the present utility model, the joint main pipe section has a first side portion and a second side portion opposite to each other in the second direction. The remaining one communication port 13 of the tee joint 1 is arranged on the second side portion of the joint main pipe section; at least part of the connecting pipe section 2 is bent towards one side of the second side portion of the tee joint 1. At least part of the connecting pipe section 2 is bent towards one side of the second side portion of the tee joint 1, which can reduce the flow resistance of the refrigerant gas flowing from the connecting pipe section 2 into the joint main pipe section, make the flow of the refrigerant gas smoother, and can also improve the uniformity of the tee joint 1 splitting the flow to the first branch pipe section 3 and the second branch pipe section 4, thereby reducing the overall machine noise of the compressor 1000.
[0051] Further, in the embodiment of the present utility model, at least a part of the connecting pipe section 2 is arranged as an inclined straight pipe section, and the included angle between the axis of the inclined straight pipe section and the axis of the joint main pipe section is A, where 140° < A < 180°. By setting the included angle between the axis of the inclined straight pipe section and the axis of the joint main pipe section within the above range, the flow resistance of the refrigerant gas flowing from the connecting pipe section 2 into the joint main pipe section can be further reduced, making the flow of the refrigerant gas smoother. Also, the uniformity of the flow splitting of the three-way joint 1 to the first branch pipe section 3 and the second branch pipe section 4 can be further improved, thereby further reducing the overall machine noise of the compressor 1000.
[0052] It should be noted that the present utility model does not specifically limit the material of the three-way joint 1. The material of the three-way joint 1 can be brass, steel, aluminum alloy, etc.; in the embodiment of the present utility model, the material of the three-way joint 1 includes brass. The three-way joint 1 made of brass is easy to process and connect, and also has advantages such as good mechanical properties and high low-temperature strength, which is beneficial to the assembly of the air intake structure 100 and to ensure the performance of the air intake structure 100.
[0053] It should be noted that the present utility model does not specifically limit the material of the connecting pipe section 2. The material of the connecting pipe section 2 can be brass, steel, aluminum alloy, etc.; in the embodiment of the present utility model, the material of the connecting pipe section 2 includes brass. The connecting pipe section 2 made of brass is easy to process and connect, and also has advantages such as good mechanical properties and high low-temperature strength, which is beneficial to the assembly of the air intake structure 100 and to ensure the performance of the air intake structure 100.
[0054] It should be noted that the present utility model does not specifically limit the material of the first branch pipe section 3. The material of the first branch pipe section 3 can be brass, steel, aluminum alloy, etc.; in the embodiment of the present utility model, the material of the first branch pipe section 3 includes brass. The first branch pipe section 3 made of brass is easy to process and connect, and also has advantages such as good mechanical properties and high low-temperature strength, which is beneficial to the assembly of the air intake structure 100 and to the connection with the cylinder 410 of the compressor 1000, and is also beneficial to ensuring the performance of the air intake structure 100.
[0055] It should be noted that the present utility model does not specifically limit the material of the second branch pipe section 4. The material of the second branch pipe section 4 can be brass, steel, aluminum alloy, etc. In the embodiment of the present utility model, the material of the second branch pipe section 4 includes brass. The second branch pipe section 4 made of brass is easy to process and connect, and also has advantages such as good mechanical properties and high low-temperature strength, which is beneficial to the assembly of the intake structure 100 and the connection with the cylinder 410 of the compressor 1000, and is also beneficial to ensuring the performance of the intake structure 100.
[0056] In the embodiment of the present utility model, the intake structure 100 further includes a first pipe section 5 and a second pipe section 6 connected in sequence. The second pipe section 6 is connected to one end of the connecting pipe section 2 away from the three-way joint 1, and the first pipe section 5 is connected to one end of the second pipe section 6 away from the connecting pipe section 2. The intake structure 100 further includes a first pipe section 5 and a second pipe section 6, which is convenient for the connection between the intake structure 100 and the refrigerant gas supply structure (such as an evaporator), and can also further improve the versatility of the intake structure 100.
[0057] In the embodiment of the present utility model, the inner diameter of the pipe orifice at at least one end of the second pipe section 6 is tapered or flared. The end of the second pipe section 6 is provided with a reduced or enlarged orifice, which is convenient for the connection between the second pipe section 6 and the first pipe section 5 and the connecting pipe section 2, and is beneficial to ensuring the airtightness of the intake structure 100. It can be understood that the second pipe section 6 can have a tapered inner diameter at one end and a flared inner diameter at the other end, the second pipe section 6 can have a tapered inner diameter at both ends, or the second pipe section 6 can have a flared inner diameter at both ends.
[0058] It should be noted that the present utility model does not specifically limit the material of the first pipe section 5. The material of the first pipe section 5 can be brass, steel, aluminum alloy, etc. In the embodiment of the present utility model, the material of the first pipe section 5 includes brass. The first pipe section 5 made of brass is easy to process and connect, and also has advantages such as good mechanical properties and high low-temperature strength, which is beneficial to the assembly of the intake structure 100 and the connection with the refrigerant gas supply structure (such as an evaporator), and is also beneficial to ensuring the performance of the intake structure 100.
[0059] It should be noted that the present utility model does not specifically limit the material of the second pipe section 6. The material of the second pipe section 6 can be brass, steel, aluminum alloy, etc. In the embodiment of the present utility model, the material of the second pipe section 6 includes steel. The second pipe section 6 made of steel is convenient for welding connection with the housing 200 of the compressor 1000 to improve the stability of the connection between the compressor 1000 and the intake structure 100, can reduce the overall machine noise of the compressor 1000, and the cost of the second pipe section 6 made of steel is relatively low. While ensuring the performance of the intake structure 100, the production cost of the intake structure 100 can be reduced. It can be understood that the present utility model does not specifically limit the connection between the intake structure 100 and the compressor 1000. It can be that the second pipe section 6 is connected to the housing 200 of the compressor 1000 by welding, it can be that the second pipe section 6 is connected to the housing 200 of the compressor 1000 by a hoop band, or it can also be connected to the housing 200 of the compressor 1000 through other pipe sections.
[0060] The present utility model also proposes a compressor 1000, which includes an intake structure 100. The specific structure of the intake structure 100 refers to the above-mentioned embodiments. Since this compressor 1000 adopts all the technical solutions of the above-mentioned all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated one by one here.
[0061] In the embodiment of the present utility model, the compressor 1000 includes a refrigeration compressor. The refrigeration compressor can be used in a heat exchange system.
[0062] In the embodiment of the present utility model, a partition 420 is provided between the two cylinders 410 of the compressor 1000. In the first direction, the height of the cylinder 410 is h, the thickness of the partition 420 is h0, and the distance between the first branch pipe section 3 and the second branch pipe section 4 is L, where h + h0 < L < 1.5h + h0. The distance between the first branch pipe section 3 and the second branch pipe section 4 is set with reference to the height of the cylinder 410 and the thickness of the partition 420 and within the above range, which is beneficial to improving the uniformity and smoothness of the refrigerant gas flowing from the first branch pipe section 3 and the second branch pipe section 4 into the two cylinders 410. It can be understood that the distance between the first branch pipe section 3 and the second branch pipe section 4 is the distance between the center line (in the second direction) of the first branch pipe section 3 and the center line (in the second direction) of the second branch pipe section 4.
[0063] The present utility model also provides a heat exchange system, which includes a compressor 1000. The specific structure of the compressor 1000 refers to the above embodiments. Since the compressor 1000 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.
[0064] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.
Claims
1. An air intake structure for a compressor having two cylinders, characterized in that: The air intake structure comprises a three-way joint, and the three-way joint has three communication ports; One of the communication ports is connected to a connecting pipe section for introducing airflow; The other communication port is connected to a first branch pipe section, and one end of the first branch pipe section away from the three-way joint is used to connect to one of the cylinders of the compressor; The remaining one of the communication ports is connected to a second branch pipe section, and one end of the second branch pipe section away from the three-way joint is used to connect to another cylinder of the compressor.
2. The air intake structure according to claim 1, characterized in that: The three-way joint includes a joint main section extending along a first direction, two of the communication ports are arranged at both ends of the joint main section, and the remaining communication port is arranged on the side of the joint main section, and its axis extends along a second direction, wherein the first direction and the second direction are two directions perpendicular to each other in a plane.
3. The air intake structure according to claim 2, characterized in that: The first branch pipe section is configured as a curved pipe section, one end of the curved pipe section is extended along the first direction, and the other end of the curved pipe section is extended along the second direction; and / or, The second branch pipe section is configured as a straight pipe section and extends along the second direction.
4. The air intake structure according to claim 2, characterized in that: The joint main pipe section has a first side portion and a second side portion that are opposite to each other along the second direction, and the remaining one of the communication ports of the three-way joint is arranged at the second side portion of the joint main pipe section; The connecting pipe section is at least partially bent toward one side of the second side portion of the three-way connector.
5. The air intake structure according to claim 4, characterized in that: At least part of the connecting pipeline section is configured as an inclined straight pipeline section, and the angle between the axis of the inclined straight pipeline section and the axis of the joint main pipeline section is A, wherein 140°<A<180°.
6. The air intake structure according to claim 1, characterized in that: The material of the three-way joint includes brass; and / or, The material of the connecting pipe section includes brass; and / or, The material of the first branch pipe section includes brass; and / or, The material of the second branch pipe section includes brass.
7. The air intake structure according to claim 1, characterized in that: The air intake structure also includes a first pipeline section and a second pipeline section connected in sequence, wherein the second pipeline section is connected to an end of the connecting pipeline section away from the three-way joint, and the first pipeline section is connected to an end of the second pipeline section away from the connecting pipeline section.
8. The air intake structure according to claim 7, characterized in that: The inner diameter of the pipe opening at at least one end of the second pipeline section is gradually contracted or gradually expanded.
9. The air intake structure according to claim 7, characterized in that: The material of the first pipeline section (5) includes brass; and / or, The material of the second pipeline section includes steel.
10. A compressor, characterized in that: The compressor comprises the air intake structure according to any one of claims 1 to 9.
11. The compressor according to claim 10, characterized in that The compressor comprises a refrigeration compressor.
12. The compressor according to claim 10, characterized in that A partition is provided between the two cylinders of the compressor. In the first direction, the height of the cylinder is h, the thickness of the partition is h0, and the distance between the first branch pipe section and the second branch pipe section is L, wherein h+h0 <L<1.5h+h0。 13. A heat exchange system, characterized in that: The heat exchange system comprises the compressor according to any one of claims 10 to 12.