Flow collecting and distributing pipe

Abstract

The flow collecting and distributing pipe comprises a pipe body, sealing pieces are installed at the two ends of the pipe body in a sealed mode, a gasket is fixedly arranged in the pipe body and divides the interior of the pipe body into a flow distributing cavity and a flow collecting cavity, and branch pipe holes corresponding to the flow distributing cavity in position and a main pipe hole corresponding to the flow collecting cavity in position are formed in the side wall of the pipe body. The branch pipe holes and the main pipe hole are flanging pulling holes, and the gasket is provided with a plurality of through holes communicated with the flow dividing cavity and the flow collecting cavity. The gasket is arranged in the pipe body, and the through holes communicating the flow dividing cavity with the flow collecting cavity are formed in the gasket, so that flow of a refrigerant is divided through the through holes, that is, the refrigerant flowing into the pipe body from the main pipe hole is subjected to flow dividing through the through holes, then jet flow is mixed in the flow dividing cavity, the refrigerant can be more fully mixed, and the refrigerant is conveyed outwards through the branch pipe holes; and therefore, the refrigerant mixing and shunting effect is improved, and the subsequent use performance of the refrigerant is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of air-conditioning pipe fittings, and in particular to a collecting and diverting pipe. Background Art

[0002] In the pipelines of the air-conditioning system, it is generally necessary to use multiple pipes for diversion or collection. For example, at the inlet of the heat exchanger, it is necessary to install multiple branch pipes on the diverter so that the refrigerant can enter the heat exchanger through the branch pipes. At the outlet of the heat exchanger, it is also necessary to install multiple branch pipes on the collector so that the refrigerant can be collected from the multiple branch pipes to the main pipe.

[0003] However, before entering the diverter, the refrigerant is usually in a state of gas-liquid two-phase mixed flow, and most of the current diverters only serve to divert the refrigerant on the main pipe to multiple branch pipes. It is difficult to ensure that the gas-liquid two-phase refrigerant can be evenly mixed and distributed to each branch pipe, which leads to unsatisfactory refrigerant distribution effect and easily affects the subsequent use of the refrigerant.

[0004] Moreover, on the existing air-conditioning system pipelines, filters and silencers need to be welded on the adjacent pipelines of the diverter or collector so as to filter out impurities in the refrigerant and reduce the noise generated by the circulation of the refrigerant in the pipelines. However, the installation of filters and silencers invisibly increases the processing cost of the product and increases the production burden of the enterprise. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a collecting and dividing pipe.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A collecting and diverting pipe comprises a pipe body, both ends of which are sealed and installed with sealing sheets, a gasket is fixedly arranged inside the pipe body, the gasket divides the inside of the pipe body into a diverting cavity and a collecting cavity, a branch pipe hole corresponding to the position of the diverting cavity and a main pipe hole corresponding to the position of the collecting cavity are opened on the side wall of the pipe body, the branch pipe hole and the main pipe hole are flanged holes, and a plurality of through holes connecting the diverting cavity and the collecting cavity are opened on the gasket.

[0008] Preferably, the volume of the diversion cavity is greater than the volume of the collecting cavity.

[0009] Preferably, a fixing portion 1 which is recessed inwards is provided on the outer periphery of the tube body, and the fixing portion 1 is pressed and fixed on the outer periphery of the gasket.

[0010] Preferably, an annular groove matching with the fixing portion 1 is provided on the outer periphery of the gasket, and the fixing portion 1 is clamped inwardly on the annular groove.

[0011] Preferably, a filter screen is provided in the manifold, and the filter screen is abutted and fixed to the gasket.

[0012] Preferably, a second fixing portion recessed inwardly is provided on the outer periphery of the tube body, and the second fixing portion presses inwardly to fix the filter screen.

[0013] Preferably, the filter screen is provided with a clamping ring abutting against the side wall of the gasket, and the fixing portion is inwardly clamped with the clamping ring.

[0014] Preferably, the tube body, gasket and filter are made of copper.

[0015] Preferably, the tube body, gasket and filter are made of stainless steel.

[0016] The beneficial effects of the present invention are:

[0017] 1. By arranging a gasket in the pipe body and opening a plurality of through holes connecting the diversion cavity and the manifold cavity on the gasket, the flow of the refrigerant is diverted through the through holes, that is, the refrigerant flowing into the pipe body from the main hole is diverted through the through holes, and the jets are mixed in the diversion cavity, so that the refrigerant can be more fully mixed, and the refrigerant is transported outward through the branch pipe holes, thereby improving the effect of refrigerant mixing and diversion, and ensuring the subsequent use performance of the refrigerant;

[0018] 2. By designing the volume of the diversion chamber to be larger than that of the manifold chamber, the multiple refrigerants jetting into the diversion chamber can be mixed more evenly, that is, more space is provided for the mixing of the refrigerants to ensure the uniformity of the refrigerant mixing;

[0019] 3. By opening a plurality of through holes for the flow of refrigerant on the gasket, when the refrigerant flows through the through holes, the flowing refrigerant is silenced, that is, the noise of the refrigerant circulating in the pipeline is reduced;

[0020] 4. A filter is set inside the pipe body to filter impurities in the refrigerant circulating in the pipe body, and the filter and gasket are reasonably integrated into the pipe body to reduce the overall production and processing cost of the product;

[0021] 5. By setting the filter on one side of the manifold, when the refrigerant flows into the manifold, the filter can buffer the collected refrigerant to a certain extent to avoid the flow turbulence caused by the collection of multiple rapidly flowing refrigerants, thereby ensuring the stability and efficiency of the refrigerant collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0024] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0025] Figure 4 It is a schematic structural diagram of the gasket of the present invention.

[0026] In the figure: pipe body 1, sealing piece 11, diverter cavity 12, collecting cavity 13, branch pipe hole 14, main pipe hole 15, fixing part 1 16, fixing part 2 17, gasket 2, through hole 21, annular groove 22, filter screen 3, clamping ring 31. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0028] In the description of this specification, the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0029] like Figure 1 to Figure 4 As shown, a collecting and distributing pipe comprises a pipe body 1, and sealing plates 11 are installed at both ends of the pipe body 1 to seal the two ends of the pipe body 1. A gasket 2 is fixedly arranged inside the pipe body 1, and the outer periphery of the gasket 2 is fitted on the inner wall of the pipe body 1. The gasket 2 divides the inside of the pipe body 1 into a distribution cavity 12 and a collecting cavity 13.

[0030] The side wall of the tube body 1 is provided with a branch pipe hole 14 corresponding to the position of the diversion chamber 12 and a main pipe hole 15 corresponding to the position of the collecting chamber 13. The branch pipe hole 14 and the main pipe hole 15 are flanged holes. There are multiple branch pipe holes 14. Branch pipes are welded to the branch pipe holes 14 one by one, and main pipes are welded to the main pipe holes 15. The refrigerant flows through the main pipe, the tube body 1, and the branch pipe for diversion or flows through the branch pipe, the tube body 1, and the main pipe for collection.

[0031] The gasket 2 is provided with a plurality of through holes 21 connecting the diversion chamber 12 and the collecting chamber 13 so as to divert the flow of the refrigerant through the through holes 21. That is, the refrigerant flowing from the main pipe and the main hole 15 into the tube body 1 is diverted through the through holes 21 and then jet-mixed in the diversion chamber 12, so that the refrigerant can be more fully mixed and transported to the outside through the branch pipe holes 14 and the branch pipes, thereby improving the refrigerant mixing and diversion effect and ensuring the subsequent performance of the refrigerant.

[0032] The volume of the diverter cavity 12 is larger than the volume of the manifold cavity 13, so that the multiple refrigerants injected into the diverter cavity 12 can be better evenly mixed, that is, more space is provided for the mixing of the refrigerants to ensure the uniformity of the refrigerant mixing.

[0033] Furthermore, by providing a plurality of through holes 21 for the flow of refrigerant on the gasket 2, when the refrigerant flows through the through holes 21, the flowing refrigerant is silenced, that is, the noise of the refrigerant circulating in the pipeline is reduced.

[0034] A filter screen 3 is disposed in the manifold 13 . The filter screen 3 is disposed toward the main pipe hole 15 , and the filter screen 3 is abutted and fixed to the gasket 2 .

[0035] Furthermore, the outer periphery of the tube body 1 is provided with an inwardly recessed fixing portion 16, and the fixing portion 16 is annularly distributed on the outer periphery of the tube body 1. The outer periphery of the gasket 2 is provided with an annular groove 22 adapted to the fixing portion 16, and the fixing portion 16 is inwardly clamped on the annular groove 22, that is, the fixing portion 16 is pressed and fixed on the outer periphery of the gasket 2 to fix the gasket 2 in the tube body 1, and the fixing portion 16 is clamped into the annular groove 22 to improve the sealing between the outer periphery of the gasket 2 and the inner wall of the tube body 1 to prevent the refrigerant from flowing from the gap between the gasket 2 and the tube body 1.

[0036] The outer periphery of the tube body 1 is provided with a second fixing portion 17 which is recessed inwards. The second fixing portion 17 is distributed in a ring shape on the outer periphery of the tube body 1. The filter screen 3 is provided with a clamping ring 31 which abuts against the side wall of the gasket 2. The second fixing portion 17 clamps the clamping ring 31 inwards, that is, the second fixing portion 17 presses inwards to fix the filter screen 3.

[0037] The fixing method of the fixing part 16 and the fixing part 2 17 of this embodiment can be buckling fixing, pressure ring fixing or dot fixing. The fixing part 16 and the fixing part 2 17 fix the gasket 2 and the filter screen 3 respectively by inward deformation. For ease of understanding, this embodiment uses the pressure ring fixing method as an example.

[0038] By setting the filter 3 in the tube body 1 to filter impurities in the refrigerant circulating in the tube body 1, and by reasonably integrating the filter 3 and the gasket 2 into the tube body 1, the overall production and processing cost of the product is reduced, thereby increasing the company's profits.

[0039] Furthermore, by arranging the filter 3 on one side of the collecting chamber 13, when the refrigerant is collected into the collecting chamber 13, the filter 3 can buffer the collected refrigerant to a certain extent to avoid the flow turbulence caused by the collection of multiple rapidly flowing refrigerants, thereby ensuring the stability and efficiency of the refrigerant collection.

[0040] The material of the tube body 1, the gasket 2, and the filter screen 3 can be copper, and in order to further reduce the cost of the product, the material of the tube body 1, the gasket 2, and the filter screen 3 can be stainless steel.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A collecting and distributing pipe, comprising a pipe body (1), wherein both ends of the pipe body (1) are sealed with sealing sheets (11), characterized in that: A gasket (2) is fixedly arranged inside the tube body (1), and the gasket (2) divides the inside of the tube body (1) into a flow-dividing chamber (12) and a flow-collecting chamber (13). A branch pipe hole (14) corresponding to the position of the flow-dividing chamber (12) and a main pipe hole (15) corresponding to the position of the flow-collecting chamber (13) are provided on the side wall of the tube body (1). The branch pipe hole (14) and the main pipe hole (15) are flanged holes, and a plurality of through holes (21) are provided on the gasket (2) for connecting the flow-dividing chamber (12) and the flow-collecting chamber (13).

2. A current collecting and distributing pipe according to claim 1, characterized in that: The volume of the flow-dividing chamber (12) is greater than the volume of the flow-collecting chamber (13).

3. A current collecting and distributing pipe according to claim 1, characterized in that: The outer periphery of the tube body (1) is provided with a fixing portion (16) which is recessed inwards, and the fixing portion (16) is pressed and fixed on the outer periphery of the gasket (2).

4. A current collecting and distributing pipe as claimed in claim 3, characterized in that: The outer periphery of the gasket (2) is provided with an annular groove (22) adapted to the fixing portion 1 (16), and the fixing portion 1 (16) is clamped inwardly on the annular groove (22).

5. The current collecting and distributing pipe according to claim 1, characterized in that: A filter screen (3) is arranged in the manifold (13), and the filter screen (3) is abutted and fixed to the gasket (2).

6. A current collecting and distributing pipe as claimed in claim 5, characterized in that: The outer periphery of the tube body (1) is provided with a second fixing portion (17) which is recessed inwards, and the second fixing portion (17) is pressed inwards to fix the filter screen (3).

7. A current collecting and distributing pipe according to claim 6, characterized in that: The filter screen (3) is provided with a clamping ring (31) that abuts against the side wall of the gasket (2), and the second fixing portion (17) is inwardly clamped with the clamping ring (31).

8. The current collecting and distributing pipe according to claim 5, characterized in that: The material of the tube body (1), the gasket (2) and the filter screen (3) is copper.

9. The current collecting and distributing pipe according to claim 5, characterized in that: The material of the tube body (1), the gasket (2) and the filter screen (3) is stainless steel.

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