Air inlet structure, compressor and heat exchange system
By setting the main intake pipe section and the first branch section of the arc connection surface in the compressor's intake structure, the problem of large loss of intake flow of the existing intake pipe is solved, and the effect of increasing the suction flow and increasing the refrigeration capacity is achieved.
Patent Information
- Application Number
- CN202422084499.0
- 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 flow loss of the existing compressor intake pipe is large, mainly due to the vortex problem caused by the different flow directions of the first intake pipe and the second intake pipe.
An intake structure is designed, including an intake main pipe section and a first branch pipe section, with an arc connecting surface between the two, with a radius of curvature ranging from 2 mm to 10 mm. Through this structure, gas can flow slowly into the first branch pipe section, improve local intake vortex, reduce flow resistance, and increase intake air flow.
The local intake vortex of the intake structure is effectively improved, the flow resistance is reduced, the suction flow is increased, and the refrigeration capacity of the compressor is increased.
Smart Images
Figure CN223035263U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressor intake, and particularly relates to an intake structure, a compressor and a heat exchange system. Background Art
[0002] At present, a rolling piston compressor mainly consists of a pump body, a housing, a liquid reservoir, a motor, etc. Among them, although the liquid reservoir has functions such as liquid storage, oil-gas separation, and oil return, its volume is relatively large, which will also increase the installation space of the compressor. In order to reduce the volume of the compressor, related technologies propose a heat exchange system to replace functions such as oil-gas separation of the liquid reservoir through devices such as an oil-gas separator in the system, so as to replace the liquid reservoir with an intake pipe, in order to reduce the radial space of the compressor itself and save the space required for compressor installation. Among them, the intake pipe includes a first intake pipe and a second intake pipe that are sequentially connected in the intake direction. The first intake pipe extends vertically to communicate with the heat exchange system, and the second intake pipe extends horizontally to communicate with the cylinder of the compressor. Since the flow directions of the first intake pipe and the second intake pipe are different, there will be a large eddy current in the intake pipe, resulting in a large loss of intake air flow. Summary of the Utility Model
[0003] The main purpose of the utility model is to propose an intake structure, a compressor and a heat exchange system, aiming at the problem of large intake air flow loss in the existing intake pipe.
[0004] To achieve the above object, the intake structure proposed by the utility model is used for a compressor. The intake structure includes an intake main pipe section and a first branch pipe section. One end of the first branch pipe section is connected to the side of the intake main pipe section, and the other end is used to communicate with the cylinder of the compressor.
[0005] An arc connection surface is provided between the inner side wall surface of the first branch pipe section and the inner side wall surface of the intake main pipe section. The radius of curvature of the arc connection surface is R1, where 2 mm ≤ R1 ≤ 10 mm.
[0006] In one embodiment, the intake main pipe section extends along a first direction.
[0007] The intake structure further includes a second branch pipe section. The second branch pipe section is at least partially bent to form a first end in the first direction and a second end in a second direction. The first end is connected to the end of the intake main pipe section, and the second end is used to communicate with the cylinder of the compressor.
[0008] In one embodiment, the second branch pipe section includes a bent branch pipe section. The radius of curvature of the central axis of the bent branch pipe section is R2, where 15 mm ≤ R2 ≤ 25 mm.
[0009] In one embodiment, the first branch pipe section and / or the second branch pipe section are integrally formed with the intake main pipe section.
[0010] In one embodiment, the intake main pipe section extends along a first direction and has a first side portion and a second side portion opposite to each other in a second direction;
[0011] A partial pipe section of the intake main pipe section is bent toward one side of the first side portion to form a bent pipe section, and the first branch pipe section communicates with the bent pipe section corresponding to the second side portion of the intake main pipe section.
[0012] In one embodiment, the bent pipe section includes an inclined straight pipe section, and the intake main pipe section further includes a first straight pipe section connecting one end of the bent pipe section facing away from the first branch pipe section and extending along the first direction.
[0013] In one embodiment, the included angle between the inclined straight pipe section and the first straight pipe section is A, where 140° < A < 180°.
[0014] In one embodiment, the inner diameter of the pipe orifice at at least one end of the first straight pipe section is tapered or flared.
[0015] In one embodiment, the intake main pipe section extends along the first direction, and the intake structure further includes a second branch pipe section;
[0016] In the first direction, the length of the first straight pipe section is H0, and the height of the pipe orifice end face of the inclined straight pipe section and the central axis of the second branch pipe section in the first direction is H1, where 0.5H0 ≤ H1 ≤ 0.8H0.
[0017] The present utility model further provides a compressor, including the above intake structure.
[0018] In one embodiment, the compressor further includes a housing, two cylinders disposed in the housing, and a partition disposed between the two cylinders;
[0019] The intake main pipe section extends along the first direction. In the first direction, the length of the cylinder is h, the thickness of the partition is h0, and the distance L between the first branch pipe section and the second branch pipe section satisfies h + h0 < L < 1.5h + h0.
[0020] In one embodiment, the compressor includes a refrigeration compressor.
[0021] The present utility model further provides a heat exchange system, including the above compressor.
[0022] In the technical solution of the present utility model, by providing the intake main pipe section and the first branch pipe section, so that the cylinder of the compressor conveys gas. The connection between the first branch pipe section and the intake main pipe section adopts the arc connection surface, so that the gas in the intake main pipe section can smoothly flow into the first branch pipe section, which can effectively improve the local intake eddy current of the intake structure, reduce the local flow resistance in the intake structure, and is beneficial to increasing the intake flow. However, if the curvature radius of the arc connection surface is too large, it is necessary to enlarge the diameter of the intake main pipe section or the first branch pipe section, resulting in a decrease in the gas flow velocity and affecting the intake flow of the compressor. On the contrary, if the curvature radius is too small, it will increase the local flow resistance in the intake structure. Therefore, 2mm ≤ R1 ≤ 10mm, which can not only increase the gas flow velocity in the intake structure, but also reduce the local flow resistance of the intake structure, so as to achieve the purpose of increasing the intake flow and the refrigerating capacity, thus solving the problem of large intake flow loss of the existing intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] 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, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0024] Figure 1 It is a schematic structural diagram of an embodiment of the intake structure provided by the present utility model;
[0025] Figure 2 For Figure 1 a partial structural diagram of the intake structure in
[0026] Figure 3 It is a schematic structural diagram of an embodiment of the compressor provided by the present utility model.
[0027] Description of the reference numerals in the drawings:
[0028] 100, intake structure; 110, intake main pipe section; 111, bent pipe section; 112, first straight pipe section; 120, first branch pipe section; 130, second branch pipe section; 131, first end; 132, second end; 140, connecting pipe section;
[0029] 1000, compressor; 210, lower housing; 220, main housing; 230, upper housing; 300, cylinder; 400, partition.
[0030] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the drawings. Specific embodiments
[0031] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0032] 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 positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0033] In addition, if there are descriptions such as "first" and "second" 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 of such features. 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 various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions 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.
[0034] At present, a rolling rotor compressor mainly consists of a pump body, a housing, a liquid receiver, a motor, etc. Among them, although the liquid receiver has functions such as liquid storage, oil-gas separation, and oil return, its volume is relatively large, which will increase the installation space of the compressor accordingly. In order to reduce the volume of the compressor, related technologies propose a heat exchange system that replaces the functions such as oil-gas separation of the liquid receiver through devices such as an oil-gas separator in the system, so as to replace the liquid receiver with an intake pipe, thereby reducing the radial space of the compressor itself and saving the installation space required for the compressor. Among them, the intake pipe includes a first intake pipe and a second intake pipe that are sequentially connected in the intake direction. The first intake pipe extends in the up-down direction and is used to connect to the heat exchange system, and the second intake pipe extends in the horizontal direction and is used to connect to the cylinder of the compressor. Since the flow directions of the first intake pipe and the second intake pipe are different, there will be a large eddy in the intake pipe, resulting in a large loss of intake air flow.
[0035] Based on this, the present utility model proposes an intake structure for a compressor, aiming to solve the problem of large intake flow loss in the existing intake pipe. Among them, Figures 1 to 3 is a schematic structural diagram of the compressor provided by the present utility model.
[0036] Please refer to Figures 1 to 3 , in an embodiment of the present utility model, the intake structure 100 includes an intake main pipe section 110 and a first branch pipe section 120. One end of the first branch pipe section 120 is communicated with the side of the intake main pipe section 110, and the other end is used to communicate with the cylinder 300 of the compressor 1000. An arc connection surface is provided between the inner side wall surface of the first branch pipe section 120 and the inner side wall surface of the intake main pipe section 110. The radius of curvature of the arc connection surface is R1, where 2 mm ≤ R1 ≤ 10 mm.
[0037] The technical solution of the present utility model is to set the intake main pipe section 110 and the first branch pipe section 120 to convey gas to the cylinder 300 of the compressor 1000. The connection between the first branch pipe section 120 and the intake main pipe section 110 adopts the arc connection surface, so that the gas in the intake main pipe section 110 can flow smoothly into the first branch pipe section 120, which can effectively improve the local intake eddy current of the intake structure 100 and reduce the local flow resistance in the intake structure 100, which is beneficial to increasing the intake flow. However, if the radius of curvature of the arc connection surface is too large, it is necessary to enlarge the diameter of the intake main pipe section 110 or the first branch pipe section 120, resulting in a decrease in the gas flow velocity and affecting the intake flow of the compressor 1000. On the contrary, if the radius of curvature is too small, it will increase the local flow resistance in the intake structure 100. Therefore, 2 mm ≤ R1 ≤ 10 mm can not only increase the gas flow velocity in the intake structure 100, but also reduce the local flow resistance of the intake structure 100, so as to achieve the purpose of increasing the intake flow and the refrigerating capacity, thus solving the problem of large intake flow loss in the existing intake pipe.
[0038] It should be noted that, please refer to Figure 2, the arc connection surface refers to the side of the connection between the intake main pipe section 110 and the first branch pipe section 120 that is close to the first branch pipe section 120. In this way, by setting the arc connection surface, the gas in the intake main pipe section 110 can flow smoothly into the first branch pipe section 120, which can effectively improve the local intake eddy current of the intake structure 100 and reduce the local flow resistance in the intake structure 100, thereby helping to increase the intake flow rate. Further, the radius of curvature of the arc connection surface can be an integer value of 10 mm, or any integer value between 2 mm and 10 mm, such as 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, etc. Of course, it can also be a value between any two of the above integers. For example, the values between 5 mm and 6 mm can be 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.8 mm, 5.9 mm, etc. The above values are all within the protection scope of the present invention.
[0039] In an embodiment of the present invention, the intake main pipe section 110 extends along a first direction, and the intake structure 100 further includes a second branch pipe section 130. The second branch pipe section 130 is at least partially bent to form a first end 131 in the first direction and a second end 132 in a second direction. The first end 131 is connected to the end of the intake main pipe section 110, and the second end 132 is used to communicate with the cylinder 300 of the compressor 1000. In this way, by setting the second branch pipe section 130, air can be supplied to the cylinder 300 of the compressor 1000, so that the intake structure 100 can supply air to the two cylinders 300 of the compressor 1000 through the first branch pipe section 120 and the second branch pipe section 130 at the same time, thereby enabling the intake structure 100 to be adapted to the cylinder 300 of the compressor 1000.
[0040] It should be noted that the first direction can be the up-down direction, the horizontal direction, etc. The present invention does not limit this. Exemplarily, the first direction is the up-down direction.
[0041] Further, please refer to Figure 2, the second branch pipe section 130 includes a bent branch pipe section, and the radius of curvature of the central axis of the bent branch pipe section is R2, where 15 mm ≤ R2 ≤ 25 mm. Since the smaller the radius of curvature of the central axis of the bent branch pipe section, the greater the local flow resistance of the gas, which will affect the suction flow rate of the compressor 1000. If the radius of curvature of the central axis of the bent branch pipe section is larger, the distance between the first branch pipe section 120 and the second branch pipe section 130 needs to be increased, so that the first branch pipe section 120 and the second branch pipe section 130 cannot be adapted to the cylinder 300 of the compressor 1000. Therefore, 15 mm ≤ R2 ≤ 25 mm can not only be adapted to the cylinder 300 of the compressor 1000 to supply gas from the intake structure 100 to the cylinder 300 of the compressor 1000, but also reduce the local flow resistance of the intake structure 100, which helps to increase the suction flow rate of the compressor 1000.
[0042] It should be noted that the radius of curvature of the central axis of the bent branch pipe section can be an integer value of 15 mm or any integer value between 15 mm and 25 mm. For example, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, etc. Of course, it can also be a value between any two of the above integers. For example, the value between 20 mm and 21 mm can be 20.1 mm, 20.2 mm, 20.3 mm, 20.4 mm, 20.5 mm, 20.6 mm, 20.7 mm, 20.8 mm, 20.9, etc. The above values are all within the protection scope of the present invention.
[0043] There are various connection methods between the first branch pipe section 120 and the second branch pipe section 130 and the intake main pipe section 110. For example, it can be connected by welding or by flange connection, etc. The present invention does not limit this. However, if welding connection is used, there will be a large error at the connection between the first branch pipe section 120 and the intake main pipe section 110, which will affect the radius of curvature of the arc connection surface. Therefore, in this embodiment, the first branch pipe section 120 and / or the second branch pipe section 130 and the intake main pipe section 110 are integrally formed. In this way, by adopting integral formation, on the one hand, subsequent assembly processes can be saved, and on the other hand, it can avoid a large error at the connection between the intake main pipe section 110 and the first branch pipe section 120 due to assembly and other factors, thereby facilitating the precise control of the radius of curvature of the arc connection surface.
[0044] In an embodiment of the present utility model, the main intake pipe section 110 extends along a first direction and has a first side portion and a second side portion opposite to each other in a second direction. A partial pipe section of the main intake pipe section 110 is bent toward one side of the first side portion to form a bent pipe section 111. The first branch pipe section 120 communicates with the bent pipe section 111 corresponding to the second side portion of the main intake pipe section 110. Thus, by providing the bent pipe section 111, it is convenient for the first branch pipe section 120 to connect the main intake pipe section 110 to the cylinder 300 of the compressor 1000, and at the same time, the main intake pipe section 110 can be as close as possible to the main housing 220 of the compressor 1000, which is beneficial to reducing the vibration of the intake structure 100.
[0045] It should be noted that there are various first directions and second directions. For example, the first direction is the up-and-down direction and the second direction is the horizontal direction, or the first direction is the horizontal direction and the second direction is the up-and-down direction, etc. The present utility model does not limit this. Exemplarily, please refer to Figure 3 , where the first direction is the up-and-down direction and the second direction is the horizontal direction.
[0046] Furthermore, the bent pipe section 111 includes an inclined straight pipe section. The main intake pipe section 110 further includes a first straight pipe section 112 that connects one end of the bent pipe section 111 facing away from the first branch pipe section 120 and extends along the first direction. Thus, by providing the first straight pipe section 112, it is convenient for the gas to flow along the first direction. At the same time, by providing the inclined branch pipe section, it is not only convenient to communicate with the first branch pipe section 120, but also enables the first straight pipe section 112 to be as close as possible to the main housing 220 of the compressor 1000. Of course, in other embodiments, the bent pipe section 111 can also be an arc-shaped pipe section, etc. The present utility model does not limit this.
[0047] In one embodiment of the present invention, the angle between the oblique straight pipe section and the first straight pipe section 112 is A, wherein 140° <A<180°,由于所述斜直管路段与所述第一直管路段112之间的夹角越小,所述进气结构100的局部流阻越大,会影响所述压缩机1000的吸气流量,反之,所述斜直管路段与所述第一直管路段112的夹角越大,所述倾斜支管路段在第二方向的长度越短,为了保证所述第一支管路段120的安装,则需要增加所述第一直管路段112与所述压缩机1000的主壳体220之间的距离,不利于降低所述压缩机1000的噪声,故140°<A<180°,既便于与所述第一支管路段120连通,又使得所述第一直管路段112能够尽量靠近所述压缩机1000的主壳体220。
[0048] It can be understood that the angle between the inclined straight pipe section and the first straight pipe section 112 can be an integer value of 160°, or any integer value between 140° and 180°, such as 150°, 160°, 170°, etc., and of course, it can also be an angle value between any two of the above integers, such as, the degree between 150° and 160° can be 151°, 152°, 153°, 154°, 155°, 156°, 157°, 158°, 159°, etc., and of course it can also be some small values, and the above values are all within the protection scope of the present utility model.
[0049] In one embodiment of the utility model, the inner diameter of the pipe opening at at least one end of the first straight pipe section 112 is gradually contracted or gradually expanded. In this way, the interface of the first straight pipe section 112 is gradually contracted or gradually expanded to be plugged in and matched with the corresponding pipe section to form a tight fit at the connection, which can not only enable the connection to maintain the stability of the connection in a high pressure and vibration environment, but also form a good sealing effect, avoid the additional setting of sealing materials, and facilitate loading and unloading, and facilitate subsequent maintenance or replacement.
[0050] In one embodiment of the utility model, the air intake structure 100 also includes a connecting pipe section 140, and the connecting pipe section 140 is connected to the end of the first straight pipe section 112 away from the bent pipe section 111. In this way, by setting the connecting pipe section 140 so as to be connected to the heat exchange system, the compressor 1000 can compress the gas in the heat exchange system.
[0051] In one embodiment of the present invention, please refer to Figure 3, the intake main pipe section 110 extends along a first direction, and the intake structure 100 further includes a second branch pipe section 130. Along the first direction, the length of the first straight pipe section 112 is H0, and the height of the pipe orifice end face of the inclined straight pipe section and the central axis of the second branch pipe section 130 in the first direction is H1, where 0.5H0 ≤ H1 ≤ 0.8H0. Since the materials of the inclined straight pipe section and the second branch pipe section 130 are usually brass, the greater the height of the pipe orifice end face of the inclined straight pipe section and the central axis of the second branch pipe section 130 in the first direction, the higher the cost of the intake structure 100. If the height is smaller, the inclination angle of the inclined straight pipe section will be larger, resulting in a greater local flow resistance of the intake structure 100. Therefore, 0.5H0 ≤ H1 ≤ 0.8H0 can not only reduce the cost of the intake structure 100 but also reduce the local flow resistance of the intake structure 100, which is beneficial to improving the suction flow rate of the compressor 1000.
[0052] The present utility model also provides a compressor 1000, which includes an intake structure 100. The specific structure of the intake structure 100 refers to the above embodiments. Since this compressor 1000 adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Among them, the compressor 1000 includes a refrigeration compressor 1000.
[0053] In an embodiment of the present utility model, the compressor 1000 further includes a housing, two cylinders 300 disposed in the housing, and a partition 400 disposed between the two cylinders 300. The intake main pipe section 110 extends along a first direction. In the first direction, the length of the cylinder 300 is h, and the thickness of the partition 400 is h0. The distance L between the first branch pipe section 120 and the second branch pipe section 130 satisfies h + h0 < L < 1.5h + h0. Since too large or too small a distance between the first branch pipe section 120 and the second branch pipe section 130 is not conducive to the connection of the first branch pipe section 120 or the second branch pipe section 130 to the cylinder 300 of the compressor 1000, so h + h0 < L < 1.5h + h0, so that the distance between the first branch pipe section 120 and the second branch pipe section 130 can be adapted to the distance between the cylinders 300 in the compressor 1000, so as to connect the first branch pipe section 120 or the second branch pipe section 130 to the cylinder 300 of the compressor 1000.
[0054] It can be understood that, please refer to Figure 3, the compressor 1000 further includes a lower housing 210, a main housing 220, and an upper housing 230 which are arranged in sequence from bottom to top. Among them, the cylinder 300 is arranged in the main housing 220.
[0055] 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 this heat exchange system 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 here one by one. Among them, there are various types of heat exchange systems, which can be a refrigeration system or an air source heat pump system, etc. The present utility model does not limit this.
[0056] The above description is only an exemplary embodiment of the present utility model, and does 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, characterized in that: The air intake structure includes an air intake main section and a first branch section, one end of the first branch section is connected to the side of the air intake main section, and the other end is used to connect to the cylinder of the compressor; An arc connection surface is provided between the inner wall surface of the first branch pipe section and the inner wall surface of the intake main pipe section, and the curvature radius of the arc connection surface is R1, wherein 2mm≤R1≤10mm.
2. The air intake structure according to claim 1, characterized in that: The air intake main section is extended along a first direction; The air intake structure also includes a second branch pipe section, which is at least partially bent to form a first end in a first direction and a second end in a second direction, the first end is connected to the end of the air intake main pipe section, and the second end is used to connect to the cylinder of the compressor.
3. The air intake structure according to claim 2, characterized in that: The second branch pipe section comprises a curved branch pipe section, and the curvature radius of the central axis of the curved branch pipe section is R2, wherein 15 mm≤R2≤25 mm.
4. The air intake structure according to claim 2, characterized in that: The first branch pipe section and / or the second branch pipe section are integrally formed with the air intake main pipe section.
5. The air intake structure according to claim 1, characterized in that: The air intake main section is extended along a first direction and has a first side portion and a second side portion opposite to each other in a second direction; A portion of the air intake main pipe section is bent toward one side of the first side portion to form a bent pipe section, and the first branch pipe section is communicated with a second side portion of the bent pipe section corresponding to the air intake main pipe section.
6. The air intake structure according to claim 5, characterized in that: The bent pipe section includes an inclined straight pipe section, and the main intake pipe section also includes a first straight pipe section connected to an end of the bent pipe section facing away from the first branch pipe section and extending along a first direction.
7. The air intake structure according to claim 6, characterized in that: The angle between the oblique straight pipe section and the first straight pipe section is A, where 140° <A<180°。 8. The air intake structure according to claim 6, characterized in that: The inner diameter of the pipe opening at at least one end of the first straight pipe section is gradually contracted or gradually expanded.
9. The air intake structure according to claim 6, characterized in that: The air intake main pipe section is extended along a first direction, and the air intake structure further includes a second branch pipe section; Along the first direction, the length of the first straight pipe section is H0, and the height between the pipe opening end face of the inclined straight pipe section and the central axis of the second branch pipe section in the first direction is H1, 0.5H0≦H1≦0.8H0.
10. A compressor, characterized in that: Comprising 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 further comprises a housing, two cylinders disposed in the housing, and a partition disposed between the two cylinders; The intake main pipe section is extended along a first direction. In the first direction, the length of the cylinder is h, the thickness of the partition is h0, and the distance L between the first branch pipe section and the second branch pipe section satisfies h+h0. <L<1.5h+h0。 12. The compressor according to claim 10, characterized in that The compressor comprises a refrigeration compressor.
13. A heat exchange system, characterized in that: Comprising a compressor as claimed in any one of claims 10 to 12.