A flow collecting and distributing device

Abstract

The utility model discloses a kind of current collection and distribution devices, including shell and bottom cover closed installation in shell port, the shell is equipped with through-hole one, the bottom cover is equipped with with through-hole one upper and lower corresponding guide cone, the bottom cover is equipped with with through-hole two that is uniformly distributed in the outer periphery of guide cone, short branch pipe is welded with correspondence on through-hole two, the outer end of short branch pipe is provided with connecting section, long branch pipe is inserted or sheathed and welded on connecting section on connecting section.In the bottom cover, the through-hole two for inserting and welding short branch pipe is set, the length of short branch pipe is shorter, so that short branch pipe will not be bent and deformed due to its own weight in the welding process, and expansion and contraction mouth section is provided at the outer end of short branch pipe, long branch pipe with longer length is inserted or sheathed and welded in connecting section, and then welded twice, to improve the welding quality of short branch pipe and long branch pipe.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a flow collection and distribution device. Background Technology

[0002] In air conditioning systems, multiple pipes are typically used for distribution or collection. For example, at the inlet of a heat exchanger, multiple branch pipes need to be installed on the distributor so that the refrigerant can be distributed into the heat exchanger through the branch pipes. At the outlet of the heat exchanger, multiple branch pipes also need to be installed on the collector so that the refrigerant can be collected from the multiple branch pipes to the main pipe.

[0003] However, most current distributors only serve to distribute the refrigerant from the main pipe to multiple branch pipes, and cannot guarantee that the refrigerant can be evenly distributed to each branch pipe. This results in an unsatisfactory refrigerant distribution effect, which can easily affect the subsequent performance of the refrigerant.

[0004] Furthermore, existing distributors and collectors generally require welding a main pipe and multiple branch pipes. Since distributors and collectors are usually quite small, the spacing between branch pipes is also small when welding multiple branch pipes, making the welding of branch pipes relatively difficult and prone to problems such as refrigerant leakage due to poor welding. Moreover, when the length of the branch pipe is long, the weight of the branch pipe itself can easily cause the branch pipe to bend and deform, resulting in deformation at the weld joint and affecting the welding quality and effect of the branch pipe. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a current collection and distribution device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A current collection and distribution device includes a housing and a bottom cover that is sealed and installed at the port of the housing. The housing has a through hole one, and the bottom cover has a guide cone that corresponds vertically to the through hole one. The bottom cover has a through hole two that is evenly distributed around the outer periphery of the guide cone. A short branch pipe is welded to the through hole two. The outer end of the short branch pipe is provided with a connecting section. A long branch pipe is inserted into or welded onto the connecting section.

[0008] Preferably, the bottom cover is provided with a gasket located inside the housing, the guide cone is welded and fixed to the gasket, and the gasket is provided with a through hole three corresponding to the through hole two. The gasket and the through hole two form an abutment platform for the short branch pipe to be installed.

[0009] Preferably, the size of the third through hole is smaller than the size of the second through hole.

[0010] Preferably, one end of the long branch pipe is fixed with a connector.

[0011] Preferably, a main pipe is welded and fixed to the through hole, and the main pipe is provided with a constricted section that communicates with the through hole.

[0012] Preferably, the constricted section has multiple inward constricted structures.

[0013] Preferably, the housing has an inner cavity, and the inner cavity has an arc-shaped inner wall corresponding to the guide cone.

[0014] Preferably, the shell, bottom cover, guide cone, short branch pipe, and long branch pipe are made of stainless steel.

[0015] Preferably, the gasket is made of stainless steel.

[0016] Preferably, the main pipe is made of stainless steel.

[0017] The beneficial effects of this utility model are:

[0018] 1. A through hole is made on the bottom cover for inserting and welding short branch pipes. The short branch pipes are short in length, so that they will not bend or deform due to their own weight during the welding process. An expansion and contraction section is provided at the outer end of the short branch pipe. The longer branch pipes are inserted into or welded to the connecting section. Thus, the welding quality of the short and long branch pipes is improved by welding twice.

[0019] 2. By setting a gasket on the bottom cover, and opening corresponding through holes three and two on the gasket and the bottom cover, the short branch pipe can be inserted through through hole two and abutted to the abutment platform, thereby positioning the welding of the short branch pipe, reducing the welding difficulty of the short branch pipe and ensuring the welding quality.

[0020] 3. By setting guide cones inside the shell, the flow of refrigerant is guided. When diversion is required, the guide cones divert and guide the refrigerant entering the shell from through hole one, so that the refrigerant can be more evenly dispersed and diverted to multiple through holes two for output. The guide cones cooperate with the arc-shaped inner wall inside the shell to guide the diversion of refrigerant, so as to avoid backflow of refrigerant entering the shell, thereby ensuring that the refrigerant can be diverted and delivered more stably and efficiently. When collection is required, refrigerant is delivered into the shell from multiple through holes two, so that the refrigerant can be collected in the shell and output out through through hole one. The arc-shaped inner wall of the shell cooperates with the guide cones to guide the collected refrigerant, so that the collected refrigerant can flow into through hole one more smoothly and stably, avoiding flow velocity turbulence caused by multiple refrigerant streams converging together, and ensuring the reliability and efficiency of refrigerant collection.

[0021] 4. A constricted section is installed on the main pipe to connect to through hole one. When the refrigerant is diverted, the constricted section allows the refrigerant to flow into the shell more quickly and works with the guide cone to divert the refrigerant, making the refrigerant diversion more efficient. When the refrigerant is collected, the refrigerant flowing from multiple through holes two can pass through the main pipe more slowly and smoothly after passing through the constricted section, so as to ensure the stability of the refrigerant delivery. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a partial cross-sectional view of the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a partial explosion diagram of the present invention;

[0026] Figure 5 This is a cross-sectional schematic diagram of the main pipe of this utility model.

[0027] In the figure: shell 1, inner cavity 11, inner wall 12, through hole one 13, convex ring 14, bottom cover 2, through hole two 21, gasket 3, through hole three 31, abutment platform 32, guide cone 33, main pipe 4, constricted section 41, short branch pipe 5, connecting section 51, long branch pipe 6, joint 61. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] In the description of this specification, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Example 1:

[0031] like Figures 1-4 As shown, this embodiment discloses a flow distribution device, including a housing 1 and a bottom cover 2 that is enclosed and installed at the port of the housing 1. The bottom cover 2 is welded and fixed to the lower port of the housing 1. The housing 1 and the bottom cover 2 form an inner cavity 11, which is used to provide space for the input refrigerant to be distributed or distributed.

[0032] The housing 1 has a through hole 13, and a main pipe 4 is welded and fixed to the through hole 13. The through hole 13 is connected to the inner cavity 11. The bottom cover 2 is provided with a guide cone 33 corresponding to the through hole 13. The upper tip of the guide cone 33 is set towards the through hole 13. The bottom cover 2 has a through hole 21 evenly distributed on the outer periphery of the guide cone 33. A short branch pipe 5 is welded to the through hole 21. The short branch pipe 5 is inserted into and welded to the through hole 21. The outer end of the short branch pipe 5 is provided with a connecting section 51. A long branch pipe 6 is inserted into or welded onto the connecting section 51.

[0033] Specifically, because the short branch pipe 5 is shorter, it will not bend or deform due to its own weight during the welding process. Furthermore, the connecting section 51 at the outer end of the short branch pipe 5 allows the longer branch pipe 6 to be inserted into or welded to the connecting section 51. Thus, the short branch pipe 5 and the long branch pipe 6 are fixed by two welding processes, thereby improving the welding quality of the short branch pipe 5 and the long branch pipe 6 and avoiding pipeline leakage and other problems caused by welding quality issues.

[0034] The bottom cover 2 is provided with a gasket 3 located inside the housing 1. The guide cone 33 is welded and fixed to the gasket 3. The gasket 3 and the guide cone 33 can also be integrally formed. A protruding ring 14 extends from the housing 1. The gasket 3 is welded and fixed to the protruding ring 14. The gasket 3 is provided with a through hole 31 corresponding to the through hole 21.

[0035] The size of the third through hole 31 is smaller than that of the second through hole 21. The gasket 3 and the second through hole 21 form an abutment platform 32 for the short branch pipe 5 to be installed, so that the short branch pipe 5 can be inserted through the second through hole 21 and abutted onto the abutment platform 32, thereby positioning the welding of the short branch pipe 5, reducing the welding difficulty of the short branch pipe 5 and ensuring the welding quality.

[0036] The housing 1 has an inner cavity 11, and the inner cavity 11 is provided with an arc-shaped inner wall 12 corresponding to the guide cone 33. The guide cone 33 cooperates with the inner wall 12 to guide or divert the refrigerant delivered to the inner cavity 11.

[0037] The flow of refrigerant is guided by the guide cone 33 inside the housing 1. When diversion is required, the guide cone 33 diverts and guides the refrigerant entering the housing 1 from the through hole 13, so that the refrigerant can be more evenly dispersed and diverted to multiple through holes 21 and output. Furthermore, the guide cone 33 cooperates with the arc-shaped inner wall 12 inside the housing 1 to guide the diversion of refrigerant, so as to avoid backflow of the refrigerant entering the housing 1, thereby ensuring that the refrigerant can be diverted and transported more stably and efficiently.

[0038] When refrigerant needs to be collected, it is delivered into the housing 1 from multiple through holes 21, so that the refrigerant can be collected in the housing 1 and output outward through through hole 13. The arc-shaped inner wall of the housing 1 cooperates with the guide cone 33 to guide the collected refrigerant, so that the collected refrigerant can flow into through hole 13 more smoothly and stably, avoiding flow velocity disturbance caused by multiple refrigerant streams converging together, and ensuring the reliability and efficiency of refrigerant collection.

[0039] Furthermore, the main pipe 4 is provided with a constricted section 41 that communicates with the through hole 13. When the refrigerant is diverted (the refrigerant is transported into the housing 1 through the main pipe 4), the constricted section 41 enables the refrigerant to flow into the housing 1 more quickly and cooperates with the guide cone 33 to divert the refrigerant, so as to make the diversion of the refrigerant more efficient.

[0040] When the refrigerant is collected (the refrigerant inside the casing 1 is transported outward through the main pipe 4), the refrigerant flowing from the multiple through holes 21 can be transported through the main pipe 4 more slowly and smoothly after passing through the constriction section 41, so as to ensure the stability of the refrigerant transport.

[0041] The shell 1, bottom cover 2, gasket 3, guide cone 33, main pipe 4, short branch pipe 5, and long branch pipe 6 are made of stainless steel. By using stainless steel, the overall material cost of this embodiment is greatly reduced. One end of the long branch pipe 6 is fixed with a connector 61, which can be made of copper, i.e., a copper connector 61 is fixed to one end of the long branch pipe 6.

[0042] Example 2:

[0043] like Figure 5 As shown, this embodiment also discloses a flow collection and distribution device. The difference between this embodiment and embodiment 1 is that the constriction section 41 in this embodiment is provided with multiple inward constriction structures. By setting the constriction section 41 with multiple inward constriction structures, the refrigerant flow rate of the main pipe 4 during flow distribution is further improved; and the main pipe 4 can deliver the refrigerant more smoothly during flow collection.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A current collection and distribution device, comprising a housing (1) and a bottom cover (2) enclosed and installed at the port of the housing (1), characterized in that: The housing (1) has a through hole 1 (13), the bottom cover (2) has a guide cone (33) corresponding to the through hole 1 (13) above and below, the bottom cover (2) has a through hole 2 (21) evenly distributed on the outer periphery of the guide cone (33), a short branch pipe (5) is welded to the through hole 2 (21), the outer end of the short branch pipe (5) is provided with a connecting section (51), and a long branch pipe (6) is inserted into or welded onto the connecting section (51).

2. The current collection and distribution device as described in claim 1, characterized in that: The bottom cover (2) is provided with a gasket (3) located inside the housing (1). The guide cone (33) is welded and fixed on the gasket (3). The gasket (3) is provided with a through hole (31) corresponding to the through hole (21). The gasket (3) and the through hole (21) form an abutment platform (32) for the short branch pipe (5) to be installed.

3. The current collection and distribution device as described in claim 2, characterized in that: The size of the third through hole (31) is smaller than the size of the second through hole (21).

4. The current collection and distribution device as described in claim 1, characterized in that: One end of the long branch pipe (6) is fixed with a connector (61).

5. A current collection and splitting device as described in any one of claims 1 to 4, characterized in that: A main pipe (4) is welded and fixed on the through hole (13), and a constricted section (41) communicating with the through hole (13) is provided on the main pipe (4).

6. A current collection and distribution device as described in claim 5, characterized in that: The constricted section (41) is provided with multiple inward constricted structures.

7. A current collection and distribution device as described in claim 1, characterized in that: The housing (1) has an inner cavity (11) and an arc-shaped inner wall (12) corresponding to the guide cone (33) on the inner cavity (11).

8. A current collection and distribution device as described in claim 1, characterized in that: The shell (1), bottom cover (2), guide cone (33), short branch pipe (5), and long branch pipe (6) are made of stainless steel.

9. A current collection and distribution device as described in claim 2, characterized in that: The gasket (3) is made of stainless steel.

10. A current collection and distribution device as described in claim 5, characterized in that: The main pipe (4) is made of stainless steel.

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