Liquid separation header structure, heat exchanger and refrigeration equipment

Abstract

The invention discloses a liquid distributing and collecting pipe structure, a heat exchanger and refrigeration equipment. The liquid distributing and collecting pipe structure comprises a collecting pipe body, a plurality of branch pipelines and a pulsating flow generating component. The branch pipelines are arranged at intervals in the axial direction of the header body and communicate with the header body. The pulsating flow generation component is arranged in the header body and used for intermittently conducting all the branch pipelines so that fluid can sequentially enter all the branch pipelines and generate pulsating flow. The pulsating flow generating part ensures that the flow of fluid entering each branch pipeline is uniform and pulsating flow is formed, so that the fluid is uniformly distributed, and meanwhile, the heat exchange coefficient of the heat exchanger is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, and in particular to a liquid separation header structure, a heat exchanger and a refrigeration device. Background Art

[0002] At present, in order to solve the problem of uniform liquid distribution in the manifold, the method of multiple distribution is generally adopted. Fig.10 One is the "parachute" type distribution structure, which is a three-stage liquid separation structure that continuously breaks up the liquid separation area to form an effective and uniform liquid separation. Figure 7 There is also a method of liquid separation by inserting a flute tube into the manifold. The fluid has a high flow rate in the flute tube, and the gas and liquid are mixed evenly. They flow out through the flute holes to form a uniform gas-liquid mixed fluid, and then are distributed to each branch through the manifold. Another method is to separate the liquid by disturbing the fluid, such as adding valve holes and other structures in the manifold to disturb the flow, forming a more uniform gas-liquid mixed fluid and forming uniform liquid separation.

[0003] However, the multi-branch heat exchanger in the related art cannot effectively solve the problem of uneven liquid distribution in the header, which brings great design difficulties. If the design is not good, it will lead to energy waste during the use of the heat exchanger. Summary of the invention

[0004] The purpose of the present application is to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a liquid separation manifold structure, which ensures uniform liquid separation by optimizing structural design and linkage control, and at the same time, generates pulsating flow to enhance heat transfer of the heat exchanger.

[0005] The present application also proposes a heat exchanger including the above-mentioned liquid separation manifold structure.

[0006] The present application also proposes a refrigeration device comprising the above heat exchanger.

[0007] According to the first aspect of the present application, the liquid separation manifold structure includes:

[0008] header body;

[0009] A plurality of branch pipes are arranged at intervals along the axial direction of the header body and communicated with the header body;

[0010] The pulsating flow generating component is arranged in the manifold body, and the pulsating flow generating component is used for intermittently conducting each of the branch pipes so that the fluid can enter each of the branch pipes in turn and generate a pulsating flow.

[0011] The liquid separation manifold structure according to the first aspect of the present application has at least the following beneficial effects: the pulsating flow generating component is used to ensure that the flow rate of the fluid entering each branch pipe is uniform and a pulsating flow is formed, thereby ensuring uniform distribution of the fluid and enhancing the heat transfer coefficient of the heat exchanger.

[0012] According to the liquid separation collection pipe structure described in the first aspect embodiment of the present application, the pulsating flow generating component includes a first sleeve, the first sleeve extends into the collection pipe body, and a plurality of first liquid separation holes compatible with the branch pipes are provided on the circumferential side wall of the first sleeve, wherein the first liquid separation holes are arranged at intervals along the axial direction of the first sleeve, and each of the first liquid separation holes is evenly staggered in the circumferential direction of the first sleeve, and the first sleeve is driven to rotate at a uniform speed so that the branch pipe can receive the fluid input from the first sleeve when it is connected with the first liquid separation hole, and the branch pipe is cut off by the first sleeve when it is staggered with the first liquid separation hole.

[0013] According to the liquid separation manifold structure described in the embodiment of the first aspect of the present application, the liquid separation manifold structure further includes a driving component, and the driving component is used to drive the first sleeve to rotate;

[0014] Wherein, a permanent magnet is disposed on the first sleeve, and the driving component comprises a coil assembly, and the coil assembly is adapted to the permanent magnet so that the driving component can drive the first sleeve to rotate by magnetic drive;

[0015] Alternatively, the driving component includes an impeller assembly, and the impeller assembly is arranged on one end of the first sleeve, so that when the fluid flows through the impeller assembly and enters the first sleeve, the impeller assembly can rotate and drive the first sleeve to rotate synchronously.

[0016] According to the liquid separation collection pipe structure described in the embodiment of the first aspect of the present application, the liquid separation collection pipe structure also includes a first distribution pipe, a plurality of first distribution holes are axially spaced apart on the circumferential side wall of the first distribution pipe, and the first sleeve is sleeved outside the first distribution pipe and is spaced apart from the first distribution pipe.

[0017] According to the liquid separation collection pipe structure described in the first aspect embodiment of the present application, the liquid separation collection pipe structure also includes a second sleeve, which is sleeved outside the first distribution pipe and is spaced apart from the first sleeve, and a plurality of second liquid separation holes that are compatible with the distribution holes are provided on the circumferential side wall of the second sleeve, wherein the second liquid separation holes are spaced apart along the axial direction of the second sleeve, and each of the second liquid separation holes is evenly staggered in the circumferential direction of the second sleeve, and the second sleeve is driven to rotate at a uniform speed so that the first distribution pipe can output fluid into the first sleeve when the first distribution hole is connected to the second liquid separation hole, and the first distribution hole is cut off by the second sleeve when the second liquid separation hole is staggered.

[0018] According to the liquid separation collection pipe structure described in the embodiment of the first aspect of the present application, the pulsating flow generating component includes a first baffle, which can be reciprocatingly arranged in the collection pipe body, and the first baffle can intermittently pass through the connection between each branch pipe and the collection pipe body and achieve cutoff, so that the fluid can enter each branch pipe in turn from the collection pipe body and generate a pulsating flow.

[0019] According to the liquid separation manifold structure described in the embodiment of the first aspect of the present application, the liquid separation manifold structure further includes a driving component, and the driving component is used to drive the first baffle to reciprocate;

[0020] Wherein, the driving component includes a gear assembly and a connecting rod assembly, the gear assembly is driven to rotate, the gear assembly drives the connecting rod assembly to move, and the connecting rod assembly is used to drive the first baffle to reciprocate.

[0021] According to the liquid separation collection pipe structure described in the first aspect embodiment of the present application, the liquid separation collection pipe structure also includes a second distribution pipe, one end of the second distribution pipe is used to input fluid, and the other end of the second distribution pipe is vertically extended into the collection pipe body as a second distribution hole, so that the fluid is distributed to each of the branch pipes by free fall, and the pulsating flow generating component includes a second baffle, a third liquid separation hole is provided on the second baffle, and the second baffle is arranged adjacent to the other end of the second distribution pipe, and the second baffle is driven to rotate at a uniform speed, so that the second distribution pipe can output fluid when the third liquid separation hole is connected to the second distribution hole, and the second distribution pipe is cut off by the second baffle when the third liquid separation hole is staggered from the second distribution hole.

[0022] The heat exchanger according to the second aspect of the present application includes: the liquid separation manifold structure as described in the first aspect of the present application.

[0023] A refrigeration device according to an embodiment of the third aspect of the present application includes: a heat exchanger as described in the embodiment of the second aspect of the present application.

[0024] It is not difficult to understand that the heat exchanger in the embodiment of the second aspect of the present application and the refrigeration equipment in the embodiment of the third aspect of the present application both have the technical effects of the liquid separation manifold structure in the embodiment of the first aspect described above, and therefore will not be described in detail.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present application is further described below with reference to the accompanying drawings and embodiments;

[0027] Figure 1 This is a schematic diagram of a pulsating flow generating component using a first sleeve in the first embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the branch pipelines being connected to each other in the first embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of a first embodiment of the present application in which the driving component adopts magnetic drive;

[0030] Figure 4 This is a schematic diagram of the driving component in the first embodiment of the present application being driven by an impeller assembly;

[0031] Figure 5 This is a schematic diagram of the branch pipelines being connected to each other when the pulsating flow generating component adopts the first baffle in the second embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of a driving component in a second embodiment of the present application;

[0033] Figure 7 It is a schematic diagram of liquid dispensing using a flute-shaped dispensing tube in the related art;

[0034] Figure 8 This is a schematic diagram of a pulsating flow generating component using a first sleeve when a first distribution pipe is provided in a third embodiment of the present application;

[0035] Fig. 9 This is a schematic diagram of a third embodiment of the present application when a second sleeve is arranged on the first distribution pipe;

[0036] Fig.10 A schematic diagram of a "parachute" type distribution structure used in the related art;

[0037] Fig.11 This is a schematic diagram of the pulsating flow generating component using a second baffle when a "parachute" type distribution structure is adopted in the fourth embodiment of the present application.

[0038] Reference numerals:

[0039] 100, header body; 110, branch pipeline;

[0040] 200, first sleeve; 201, first liquid separation hole; 210, permanent magnet; 220, coil assembly; 230, impeller assembly;

[0041] 300, first distribution pipe; 301, first distribution hole; 310, second sleeve; 311, second liquid distribution hole;

[0042] 400, first baffle; 410, gear assembly; 420, connecting rod assembly;

[0043] 500, second distribution pipe; 501, second distribution hole; 510, second baffle; 511, third liquid separation hole. DETAILED DESCRIPTION

[0044] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0045] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In the description of this application, "several" means one or more, "more" means at least two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0047] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application after combining the specific content of the technical solution.

[0048] Reference Figures 1 to 11 The liquid separation manifold structure of the first embodiment of the present application is applied to the liquid separation of a heat exchanger. The liquid separation manifold structure includes a manifold body 100, a plurality of branch pipes 110 and a pulsating flow generating component.

[0049] Among them, multiple branch pipes 110 are arranged at intervals along the axial direction of the manifold body 100 and are connected to the manifold body 100; a pulsating flow generating component is arranged in the manifold body 100, and the pulsating flow generating component is used to intermittently conduct each branch pipe 110 so that the fluid can enter each branch pipe 110 in turn and generate a pulsating flow.

[0050] It can be understood that the pulsating flow generating component ensures that the flow rate of the fluid entering each branch pipe 110 is uniform and forms a pulsating flow, thereby ensuring uniform distribution of the fluid and enhancing the heat transfer coefficient of the heat exchanger.

[0051] In some embodiments, 2-4 Hz refrigerant pulsation can greatly increase the heat exchange capacity of the air conditioner heat exchanger without causing any additional pressure loss, thereby improving the performance of the heat exchanger. Although there are some pulsating flow generation devices based on PWM generators, these devices consume electrical energy. The present application directly drives the distributor to generate pulsating flow through the flow work of the refrigerant two-phase flow, and mixes the two-phase flow through a spoiler to reduce the uneven liquid separation problem caused by phase separation, thereby improving the performance of the heat exchanger and achieving uniform distribution of the two-phase flow.

[0052] Reference Figures 1 to 4 In some embodiments of the present application, the pulsating flow generating component includes a first sleeve 200, the first sleeve 200 extends into the manifold body 100, and a plurality of first liquid separation holes 201 adapted to the branch pipes 110 are provided on the circumferential sidewall of the first sleeve 200, wherein the first liquid separation holes 201 are arranged at intervals along the axial direction of the first sleeve 200, and the first liquid separation holes 201 are uniformly staggered in the circumferential direction of the first sleeve 200, and the first sleeve 200 is driven to rotate at a uniform speed, so that the branch pipes 110 can receive the fluid input from the first sleeve 200 when communicating with the first liquid separation holes 201, and the branch pipes 110 are cut off by the first sleeve 200 when staggered with the first liquid separation holes 201. It can be understood that the pulsating flow generating component is set to include the first sleeve 200, and the first sleeve 200 is used to control the flow of each branch and make each branch pipe 110 form a pulsating flow, which is conducive to enhancing heat transfer and enhancing the heat transfer coefficient of the heat exchanger.

[0053] In some embodiments, the header and each branch of the multi-branch heat exchanger can be simplified to a structure with a header and four branches, and the fluid enters from the header and is distributed to the four branches. Based on this, a sleeve is inserted into the header, and four holes are opened in the sleeve in sequence, corresponding to the entrance positions of the four branches. During the rotation of the middle sleeve, the fluid will enter the fluid from the hole only when the hole is aligned with the branch entrance. Therefore, as long as the speed of the sleeve rotation is uniform, the time for each hole to align with the branch entrance is equal, which can ensure that the flow rate of the fluid entering each branch is uniform, thereby ensuring uniform distribution of the fluid, especially the distribution of liquid. Secondly, since the flow rate of each branch will fluctuate in time, there is flow when the sleeve hole is aligned with the branch, and there is no flow when the hole is not aligned with the branch, then each branch forms a pulsating flow. In some embodiments, a pulsating flow of 2-10Hz is conducive to enhancing heat transfer, and a pulsating flow can be formed through the sleeve and the heat transfer coefficient of the heat exchanger can be enhanced.

[0054] Reference Figure 3 In some embodiments of the present application, the liquid separation manifold structure further includes a driving component, which is used to drive the first sleeve 200 to rotate; wherein, a permanent magnet 210 is provided on the first sleeve 200, and the driving component includes a coil assembly 220, and the coil assembly 220 is adapted to the permanent magnet 210, so that the driving component can drive the first sleeve 200 to rotate by magnetic drive; it can be understood that in order to make the sleeve rotate evenly, a simpler method is to use magnetic drive. The permanent magnet 210 is installed on the sleeve, and the permanent magnet 210 drives the sleeve to rotate by controlling the magnetic poles generated by the external coil, so that the frequency of the pulsating flow can be accurately controlled.

[0055] Reference Figure 4 In some embodiments of the present application, the liquid separation manifold structure further includes a driving component, which is used to drive the first sleeve 200 to rotate; wherein the driving component includes an impeller assembly 230, and the impeller assembly 230 is arranged at one end of the first sleeve 200, so that when the fluid flows through the impeller assembly 230 and enters the first sleeve 200, the impeller assembly 230 can rotate and drive the first sleeve 200 to rotate synchronously. It can be understood that using a coil to drive the sleeve to rotate will lead to a more complicated system structure, so it is possible to consider using the kinetic energy of the fluid itself to generate rotation. For example, an impeller is connected to the sleeve terminal, and when the fluid flows through the impeller, it pushes the impeller to rotate, thereby driving the sleeve to rotate together.

[0056] Reference Figure 5 to Figure 6In some embodiments of the present application, the pulsating flow generating component includes a first baffle 400, which is reciprocatingly disposed in the manifold body 100, and the first baffle 400 can intermittently pass through the connection between each branch pipe 110 and the manifold body 100 and achieve cutoff, so that the fluid can enter each branch pipe 110 from the manifold body 100 in sequence and generate a pulsating flow. It can be understood that setting the pulsating flow generating component to include a structure of the first baffle 400 can achieve a method of easier flow control, using the first baffle 400 to block the outlet, thereby controlling the fluid to enter each branch in batches, ensuring uniform distribution and generating a pulsating flow.

[0057] Reference Figure 6 In some embodiments of the present application, the liquid separation manifold structure further includes a driving component, which is used to drive the first baffle 400 to reciprocate; wherein the driving component includes a gear assembly 410 and a connecting rod assembly 420, the gear assembly 410 is driven to rotate, the gear assembly 410 drives the connecting rod assembly 420 to move, and the connecting rod assembly 420 is used to drive the first baffle 400 to reciprocate. It can be understood that the reciprocating motion of the baffle can be easily achieved by a connecting rod mechanism. In some embodiments, as long as the impeller mechanism similar to the above-mentioned one generates rotation and drives the gear set to rotate, the reciprocating motion can be generated by the connecting rod.

[0058] The above are all designs for uniform distribution and pulsating flow through structural optimization of direct distribution of the manifold. By optimizing the secondary distribution or multiple distribution structure, a more uniform distribution effect can be produced. In some embodiments, the present application can also be applied to a liquid distribution manifold structure using a flute-shaped distribution tube. It can be understood that the principle of the flute-shaped distribution tube is to insert a round tube with a smaller aperture into the manifold, and holes are drilled in the round tube. The fluid enters from the small round tube, flows out from the holes, and is redistributed in the manifold.

[0059] Reference Figures 7 to 9 In some embodiments of the present application, the liquid distribution manifold structure further includes a first distribution pipe 300, and a plurality of first distribution holes 301 are arranged on the circumferential side wall of the first distribution pipe 300 at intervals along the axial direction. The first sleeve 200 is sleeved outside the first distribution pipe 300 and there is an interval between the first distribution pipe 300. It can be understood that by adding the aforementioned large sleeve to the flute-shaped distribution pipe, for an extra-long manifold, the flute-shaped distribution pipe is used to ensure that a large range does not produce a very severe problem of uneven flow distribution, and the sleeve is used to ensure that the locally adjacent branches have a relatively uniform flow distribution.

[0060] Reference Fig. 9In some embodiments of the present application, the liquid distribution manifold structure further includes a second sleeve 310, which is sleeved outside the first distribution pipe 300 and is spaced apart from the first sleeve 200. A plurality of second liquid distribution holes 311 matching the distribution holes are provided on the circumferential sidewall of the second sleeve 310, wherein the second liquid distribution holes 311 are spaced apart along the axial direction of the second sleeve 310, and each second liquid distribution hole 311 is evenly staggered in the circumferential direction of the second sleeve 310. The second sleeve 310 is driven to rotate at a uniform speed, so that the first distribution pipe 300 can output fluid to the first sleeve 200 when the first distribution hole 301 is connected with the second liquid distribution hole 311, and the first distribution hole 301 is cut off by the second sleeve 310 when the second liquid distribution hole 311 is staggered. It can be understood that a sleeve is further sleeved outside the flute-shaped distribution pipe, and then the outflow time of each outlet of the flute-shaped distribution pipe is controlled by opening holes, so as to make the distribution more uniform.

[0061] In some embodiments, the present application can also be applied to a "parachute" type liquid separation manifold structure. It can be understood that the "parachute" type liquid separation structure relies on the reaction force of the fluid impacting the top of the left manifold and the action of gravity to allow the fluid to fall freely to each block, and then be distributed to the right manifold, and finally distributed to each branch. Based on this, the present application adds a baffle at the top, and through the idea of ​​rotation + distribution, evenly distributes the flow, generates a pulsating flow, and helps to enhance heat transfer.

[0062] Refer to 10 to Fig.11 In some embodiments of the present application, the liquid separation manifold structure further includes a second distribution pipe 500, one end of which is used to input fluid, and the other end of the second distribution pipe 500 is used as a second distribution hole 501 and vertically extends into the manifold body 100, so that the fluid is distributed to each branch pipe 110 by free fall. The pulsating flow generating component includes a second baffle 510, and a third liquid separation hole 511 is provided on the second baffle 510. The second baffle 510 is arranged adjacent to the other end of the second distribution pipe 500, and the second baffle 510 is driven to rotate at a uniform speed, so that the second distribution pipe 500 can output fluid when the third liquid separation hole 511 is connected with the second distribution hole 501, and the second distribution pipe 500 is cut off by the second baffle 510 when the third liquid separation hole 511 is staggered with the second distribution hole 501. It can be understood that the second baffle 510 rotates by magnetic drive or self-drive, so that the time when the fluid enters each block can be controlled, thereby ensuring uniform distribution.

[0063] In some embodiments of the present application, the present application realizes uniform flow distribution through the idea of ​​reciprocating motion + distribution, generates pulsating flow, and helps to enhance heat transfer. The simple structural design of the present application relieves a large amount of repeated flow distribution and debugging work in the heat exchanger design process, and can achieve pulsating flow and uniform flow distribution in a wide range of working conditions, unlike other structural designs that have certain working condition constraints.

[0064] Reference Figures 1 to 11 The heat exchanger of the second aspect embodiment of the present application may be a multi-branch heat exchanger, a plate heat exchanger or a microchannel heat exchanger, etc. The heat exchanger includes the liquid separation manifold structure of the first aspect embodiment of the present application, which can enhance the heat transfer effect of the heat exchanger by uniform liquid separation.

[0065] Reference Figures 1 to 11 The refrigeration equipment of the third aspect embodiment of the present application may be an air conditioner or other equipment. The refrigeration equipment includes the heat exchanger of the second aspect embodiment of the present application to improve the refrigeration performance.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A liquid separation manifold structure, characterized in that: include: header body; A plurality of branch pipes are arranged at intervals along the axial direction of the header body and communicated with the header body; The pulsating flow generating component is arranged in the manifold body, and the pulsating flow generating component is used for intermittently conducting each of the branch pipes so that the fluid can enter each of the branch pipes in turn and generate a pulsating flow.

2. The liquid separation manifold structure according to claim 1, characterized in that: The pulsating flow generating component includes a first sleeve, which extends into the collecting pipe body. A plurality of first liquid separation holes compatible with the branch pipes are provided on the circumferential side wall of the first sleeve, wherein the first liquid separation holes are arranged at intervals along the axial direction of the first sleeve, and the first liquid separation holes are evenly staggered in the circumferential direction of the first sleeve. The first sleeve is driven to rotate at a uniform speed so that the branch pipe can receive the fluid input from the first sleeve when it is connected with the first liquid separation hole, and the branch pipe is cut off by the first sleeve when it is staggered with the first liquid separation hole.

3. The liquid separation manifold structure according to claim 2, characterized in that: The liquid separation manifold structure further includes a driving component, and the driving component is used to drive the first sleeve to rotate; Wherein, a permanent magnet is disposed on the first sleeve, and the driving component comprises a coil assembly, and the coil assembly is adapted to the permanent magnet so that the driving component can drive the first sleeve to rotate by magnetic drive; Alternatively, the driving component includes an impeller assembly, and the impeller assembly is arranged on one end of the first sleeve, so that when the fluid flows through the impeller assembly and enters the first sleeve, the impeller assembly can rotate and drive the first sleeve to rotate synchronously.

4. The liquid separation manifold structure according to claim 2, characterized in that: The liquid separation manifold structure further comprises a first distribution pipe, a plurality of first distribution holes are arranged on the circumferential side wall of the first distribution pipe at intervals along the axial direction, and the first sleeve is sleeved outside the first distribution pipe and is spaced apart from the first distribution pipe.

5. The liquid separation manifold structure according to claim 4, characterized in that: The liquid separation collection pipe structure also includes a second sleeve, which is sleeved outside the first distribution pipe and is spaced apart from the first sleeve, and a plurality of second liquid separation holes that are compatible with the distribution holes are provided on the circumferential side wall of the second sleeve, wherein the second liquid separation holes are spaced apart along the axial direction of the second sleeve, and the second liquid separation holes are evenly staggered in the circumferential direction of the second sleeve, and the second sleeve is driven to rotate at a uniform speed, so that the first distribution pipe can output fluid into the first sleeve when the first distribution hole is connected with the second liquid separation hole, and the first distribution hole is cut off by the second sleeve when the first distribution hole is staggered with the second liquid separation hole.

6. The liquid separation manifold structure according to claim 1, characterized in that: The pulsating flow generating component comprises a first baffle, which is reciprocatingly disposed in the manifold body and can intermittently pass through the connection between each branch pipe and the manifold body and achieve cutoff, so that the fluid can enter each branch pipe from the manifold body in turn and generate a pulsating flow.

7. The liquid separation manifold structure according to claim 6, characterized in that: The liquid separation manifold structure further includes a driving component, and the driving component is used to drive the first baffle to reciprocate; Wherein, the driving component includes a gear assembly and a connecting rod assembly, the gear assembly is driven to rotate, the gear assembly drives the connecting rod assembly to move, and the connecting rod assembly is used to drive the first baffle to reciprocate.

8. The liquid separation manifold structure according to claim 1, characterized in that: The liquid separation collection pipe structure also includes a second distribution pipe, one end of which is used to input fluid, and the other end of the second distribution pipe is used to vertically extend into the collection pipe body as a second distribution hole, so that the fluid can be distributed to each of the branch pipes by free fall. The pulsating flow generating component includes a second baffle, and a third liquid separation hole is provided on the second baffle. The second baffle is arranged adjacent to the other end of the second distribution pipe, and the second baffle is driven to rotate at a uniform speed, so that the second distribution pipe can output fluid when the third liquid separation hole is connected to the second distribution hole, and the second distribution pipe is cut off by the second baffle when the third liquid separation hole is staggered with the second distribution hole.

9. A heat exchanger, characterized in that: include: The liquid separation manifold structure according to any one of claims 1 to 8.

10. A refrigeration device, characterized in that: include: The heat exchanger as claimed in claim 9.

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