Liquid separator and air conditioner
The redesigned divider structure in air conditioning systems addresses the inefficiencies of traditional texturli-type dividers by ensuring uniform refrigerant distribution and reducing noise, improving heat exchange efficiency and installation simplicity.
Patent Information
- Application Number
- CN202422059580.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The existing Venturi dispenser has high cost and large volume, complex debugging and poor consistency, resulting in uneven liquid dispensing and affecting the performance of the air conditioner.
Using a new dispenser structure, including an outer shell and partition, through the design of the inlet hole, spray hole and the second chamber, the refrigerant enters the wide runner from a narrow runner, combining eccentric settings and acute angle spray holes to achieve uniform distribution of refrigerant, reduce noise and simplify installation and debugging.
It achieves good liquid separation uniformity, reduces system noise, simplifies installation and debugging, reduces costs, and improves air conditioning performance.
Smart Images
Figure CN223106323U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air conditioners, in particular to a liquid distributor and an air conditioner. Background Art
[0002] In the air-conditioning circulation system, the liquid distributor distributes the gas-liquid two-phase refrigerant to each pipeline of the evaporator for heat exchange. If the liquid distribution of the liquid distributor is uneven, the refrigerant in the branch with a large flow rate will not be completely evaporated, while the refrigerant in the branch with a small flow rate will be evaporated prematurely, resulting in waste of the heat exchange area. Therefore, the liquid distribution uniformity of the liquid distributor will directly affect the heat exchange capacity of the evaporator, and thus affect the performance of the air conditioner. The reduction of the heat exchanger capacity caused by the uneven liquid distribution of the liquid distributor can reach 25%.
[0003] At present, the Venturi liquid distributor is a kind of liquid distributor that is widely used. However, the Venturi liquid distributor requires a large number of liquid distribution capillary tubes, which are costly, large in volume, and in order to achieve a better liquid distribution effect, the lengths of the capillary tubes need to be adjusted. The adjustment process is relatively complicated and the product consistency cannot be guaranteed, and it is easy to generate noise. Summary of the Utility Model
[0004] The utility model provides a liquid distributor and an air conditioner to solve one of the defects in the prior art. The cross-sectional area of the liquid inlet hole is smaller than that of the first chamber. When the refrigerant enters the first chamber from the liquid inlet hole, it enters from a narrower flow channel into a wider flow channel, that is, the flow cross-section of the refrigerant expands suddenly. In this way, the first chamber can effectively act as a resistance muffler, which can reduce the pulsating vibration from the compressor, thereby reducing the system noise.
[0005] The utility model provides a liquid distributor, which includes a housing and a partition. A liquid distribution chamber is arranged in the housing. The partition is arranged in the liquid distribution chamber and is adapted to divide the liquid distribution chamber into a first chamber and a second chamber. The housing is provided with a liquid inlet hole communicated with the first chamber. The partition is provided with spray holes. The first chamber is communicated with the second chamber through the spray holes. The cross-sectional area of the liquid inlet hole is smaller than that of the first chamber.
[0006] According to the liquid distributor provided by the utility model, the center of the cross-section of the first chamber is eccentrically arranged with the center of the cross-section of the liquid distribution chamber.
[0007] According to the liquid distributor provided by the utility model, the incident angle of the refrigerant on the inner wall of the housing of the spray hole is an acute angle.
[0008] According to the liquid distributor provided by the utility model, the spray hole includes a first hole and a second hole, and the first hole and the second hole are symmetrically arranged with respect to a set median line, and the set median line is the connection line between the center of the first chamber and the center of the liquid distribution chamber.
[0009] According to a liquid distributor provided by the present utility model, both the first holes and the second holes are multiple. The multiple first holes are evenly distributed along the flowing direction of the refrigerant in the first chamber, and the multiple second holes are evenly distributed along the flowing direction of the refrigerant in the first chamber.
[0010] According to a liquid distributor provided by the present utility model, it further includes a branch pipe body. A through hole is provided on the pipe wall of the outer shell body, and the branch pipe body is inserted into the through hole and communicated with the second chamber.
[0011] According to a liquid distributor provided by the present utility model, the branch pipe body is arranged at the position corresponding to the set median line on the outer shell body.
[0012] According to a liquid distributor provided by the present utility model, the refrigerant in the first chamber flows upward, and the liquid inlet hole is arranged at the bottom of the outer shell body.
[0013] According to a liquid distributor provided by the present utility model, the cross-sectional area of the first chamber gradually decreases from bottom to top.
[0014] The present utility model further provides an air conditioner, including the liquid distributor as described above.
[0015] In the liquid distributor of the embodiment of the present utility model, the outer shell body and the partition board together form a main pipe body. The inner part of the outer shell body constructs a liquid separation chamber. The partition board is arranged in the liquid separation chamber and connected to the inner wall of the outer shell body. Thus, the partition board divides the space of the liquid separation chamber to form a first chamber and a second chamber. The outer shell body is provided with a liquid inlet hole at the part of the first chamber, and the partition board is provided with spray holes to communicate the first chamber and the second chamber. The gas-liquid two-phase refrigerant enters the first chamber from the liquid inlet hole. The refrigerant is sprayed into the second chamber through the spray holes in the first chamber, and after being reflected by the inner wall of the part of the outer shell body corresponding to the second chamber, it is evenly dispersed in the second chamber and can be distributed to different flow paths of the heat exchanger for heat exchange.
[0016] The outer shell body extends along the flowing direction of the refrigerant at the liquid inlet hole, that is, the axial direction of the outer shell body is the flowing direction of the refrigerant entering the first chamber from the liquid inlet hole. The partition board divides the liquid separation chamber to form a first chamber and a second chamber along the direction perpendicular to the axial direction of the outer shell body. Therefore, the axial extension directions of both the first chamber and the second chamber are the axial extension direction of the outer shell body. The cross-section of the first chamber is the section perpendicular to the axial extension direction of the first chamber. The cross-sectional area of the liquid inlet hole is smaller than the cross-sectional area of the first chamber. When the refrigerant enters the first chamber from the liquid inlet hole, it enters from a narrower flow channel into a wider flow channel, that is, the flowing cross-section of the refrigerant expands suddenly. In this way, the first chamber can effectively function as a resistance muffler, which can reduce the pulse vibration from the compressor and thus reduce the system noise.
[0017] The liquid distributor of the present utility model, through the structural cooperation of the partition plate and the outer housing, replaces the existing Venturi liquid distributor, fundamentally changes the type of the liquid distributor structure, can solve the problems generated by the existing Venturi liquid distributor, does not require the setting of capillary liquid dividing tubes, and even more does not require the debugging of the capillary length. The liquid distributor of the present utility model has a simple structure, is easy to install and debug, has a low cost, has a good liquid dividing effect, is easy to control the size during the production and manufacturing process, and can flexibly adjust its shape according to the actual situation of the heat exchanger, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] Figure 1 is one of the structural schematic diagrams of the liquid distributor provided by the embodiment of the present utility model;
[0020] Figure 2 is the cross-sectional schematic diagram of the liquid distributor provided by the embodiment of the present utility model;
[0021] Figure 3 is the structural schematic diagram of the partition plate of the liquid distributor provided by the embodiment of the present utility model;
[0022] Figure 4 is the second of the structural schematic diagrams of the liquid distributor provided by the embodiment of the present utility model.
[0023] REFERENCE NUMERALS:
[0024] 100, outer housing; 110, liquid inlet hole;
[0025] 200, partition plate; 210, spray hole; 211, first hole; 212, second hole;
[0026] 300, liquid separation chamber; 310, first chamber; 320, second chamber;
[0027] 400, branch pipe body; 500, liquid inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.
[0029] As Figure 1 , Figure 2 and Figure 3 shown, the liquid distributor provided by the embodiment of the present utility model includes a housing 100 and a partition 200. A liquid separation chamber 300 is provided inside the housing 100. The partition 200 is disposed in the liquid separation chamber 300 and is adapted to divide the liquid separation chamber 300 into a first chamber 310 and a second chamber 320. The housing 100 is provided with a liquid inlet hole 110 communicating with the first chamber 310. The partition 200 is provided with a spray hole 210. The first chamber 310 and the second chamber 320 are communicated through the spray hole 210. The cross-sectional area of the liquid inlet hole 110 is smaller than the cross-sectional area of the first chamber 310.
[0030] For the liquid distributor of the embodiment of the present utility model, the housing 100 and the partition 200 together form a main body. The housing 100 internally constructs the liquid separation chamber 300. The partition 200 is disposed in the liquid separation chamber 300 and is connected to the inner wall of the housing 100. Thus, the partition 200 divides the space of the liquid separation chamber 300 to form a first chamber 310 and a second chamber 320. The housing 100 is provided with a liquid inlet hole 110 at a part of the first chamber 310. The partition 200 is provided with a spray hole 210 to communicate the first chamber 310 and the second chamber 320. The gas-liquid two-phase refrigerant enters the first chamber 310 through the liquid inlet hole 110. The refrigerant is sprayed into the second chamber 320 through the spray hole 210 in the first chamber 310. After being reflected by the inner wall of the part of the housing 100 corresponding to the second chamber 320, it is evenly dispersed in the second chamber 320 and can be distributed to different flow paths of the heat exchanger for heat exchange.
[0031] The housing 100 extends along the flow direction of the refrigerant at the liquid inlet hole 110, that is, the axial direction of the housing 100 is the flow direction of the refrigerant entering the first chamber 310 from the liquid inlet hole 110. The partition 200 divides the liquid separation chamber 300 into a first chamber 310 and a second chamber 320 along a direction perpendicular to the axial direction of the housing 100. Therefore, the axial extension directions of both the first chamber 310 and the second chamber 320 are the axial extension direction of the housing 100. The cross-section of the first chamber 310 is a section perpendicular to the axial extension direction of the first chamber 310. The cross-sectional area of the liquid inlet hole 110 is smaller than the cross-sectional area of the first chamber 310. When the refrigerant enters the first chamber 310 from the liquid inlet hole 110, it enters from a narrower flow channel into a wider flow channel, that is, the flow cross-section of the refrigerant expands suddenly. In this way, the first chamber 310 can effectively function as a resistance muffler, which can reduce the pulse vibration from the compressor and thus reduce the system noise.
[0032] The liquid distributor of the present utility model replaces the existing Venturi liquid distributor through the structural cooperation between the partition plate 200 and the outer housing 100, fundamentally changing the type of the liquid distributor structure. It can solve the problems generated by the existing Venturi liquid distributor, without the need to set up capillary liquid dividing tubes, and even less need to debug the length of the capillary tubes. The liquid distributor of the present utility model has a simple structure, is easy to install and debug, has a low cost, good liquid dividing effect, is easy to control the size during the production process, and can be flexibly adjusted according to the actual situation of the heat exchanger, etc.
[0033] According to an embodiment provided by the present utility model, the center of the cross-section of the first chamber 310 is eccentrically arranged with the center of the cross-section of the liquid dividing chamber 300. In this embodiment, the axial extension direction of the liquid dividing chamber 300 is the same as the axial extension direction of the outer housing 100, so the cross-section of the liquid dividing chamber 300 is the section perpendicular to its axis. The eccentric arrangement of the first chamber 310 and the liquid dividing chamber 300 can ensure that the second chamber 320 has a unilateral concentrated spatial form in the liquid dividing chamber 300, providing more space for the reflection and collision after the refrigerant is ejected from the first chamber 310 through the spray holes 210, thereby further improving the gas-liquid mixing and dispersion effect of the refrigerant.
[0034] According to an embodiment provided by the present utility model, the incident angle of the refrigerant on the inner wall of the outer housing 100 of the spray hole 210 is an acute angle. In this embodiment, after the refrigerant is ejected from the spray hole 210, it will form a certain acute inclination angle with the inner wall of the outer housing 100 corresponding to the second chamber 320, that is, the refrigerant incident angle. Thus, when the refrigerant is ejected from the spray hole 210, a part of the refrigerant will be reflected by the inner wall of the outer housing 100 at a certain angle to other areas of the second chamber 320, and after a series of reflections and impacts, the gas-liquid two-phase refrigerant will be fully dispersed and mixed.
[0035] According to a liquid distributor provided by the present utility model, the spray hole 210 includes a first hole 211 and a second hole 212, and the first hole 211 and the second hole 212 are symmetrically arranged with a set median line as the axis of symmetry. The set median line is the connection line between the center of the first chamber 310 and the center of the liquid dividing chamber 300. In this embodiment, the spray holes 210 on the partition plate 200 are mainly divided into two groups, one group consists of the first holes 211, and the other group consists of the second holes 212, and the first holes 211 and the second holes 212 are symmetrically distributed on the partition plate 200, and the axis of symmetry is the same plane where the axis of the first chamber 310 and the axis of the liquid dividing chamber 300 are located.
[0036] Thus, after the refrigerant jets out from the first hole 211, a part of the refrigerant will be reflected by the inner wall of the outer housing 100 at a certain angle to other areas of the second chamber 320, and another part of the refrigerant will flow along the inner wall of the second chamber 320 towards the middle until it moves near the set center line and collides with the refrigerant flowing from the other direction in the same form ejected from the second hole 212. After a series of reflections and collisions, the gas-liquid two-phase refrigerant will be fully dispersed and mixed, further improving the mixing and dispersion effect of the refrigerant by the liquid distributor.
[0037] According to an embodiment provided by the present utility model, both the first hole 211 and the second hole 212 are multiple. The multiple first holes 211 are evenly distributed along the flow direction of the refrigerant in the first chamber 310, and the multiple second holes 212 are evenly distributed along the flow direction of the refrigerant in the first chamber 310. Both the first hole 211 and the second hole 212 are evenly distributed along the axial extension direction of the first chamber 310.
[0038] In this embodiment, there are two columns of the first holes 211, and there are also two columns of the second holes 212. Each column has multiple holes evenly distributed along the axial extension direction of the first chamber 310.
[0039] According to an embodiment provided by the present utility model, the liquid distributor further includes a branch pipe body 400. A through hole is provided in the pipe wall of the outer housing 100, and the branch pipe body 400 is inserted into the through hole and communicated with the second chamber 320. In this embodiment, a through hole communicating with the second chamber 320 is provided in the pipe wall of the outer housing 100. The end of the branch pipe body 400 passes through the through hole and is communicated with the second chamber 320. After the refrigerant ejected from the first chamber 310 is reflected by the inner wall of the outer housing 100 and evenly dispersed in the second chamber 320, it is distributed to different flow paths of the heat exchanger through each branch pipe body 400 for heat exchange.
[0040] In this embodiment, the orifice of the branch pipe body 400 is located in the liquid separation chamber 300. The distance between the orifice and the orifice on the outer wall of the outer housing 100 of the through hole is the insertion depth of the branch pipe body 400 in the outer housing 100. The insertion depth of the branch pipe body 400 will affect the liquid separation effect. If the insertion is too deep, it will cause the orifice of the branch pipe body 400 to be too close to the partition plate 200, reducing the flow cross-sectional area formed by the liquid separation chamber 300 between the partition plate 200 and the branch pipe body 400, thereby reducing the refrigerant entering the branch pipe body 400. If the insertion is too shallow, the strength of the connection between the branch pipe body 400 and the through hole of the outer housing 100 will be insufficient, and it is easy to break and cause refrigerant leakage. Therefore, the insertion depth of the branch pipe body 400 is designed within a set range, that is, δ ≤ ds < (D1 - D2) / 3, where ds is the insertion depth of the branch pipe, δ is the wall thickness of the outer housing 100, D1 is the outer diameter of the outer housing 100, and D2 is the farthest distance between the partition plate 200 and the outer housing 100 within the range of the first chamber 310.
[0041] According to an embodiment provided by the present utility model, the branch pipe body 400 is arranged at the position corresponding to the set center line on the outer shell body 100. In this embodiment, the branch pipe body 400 is located between the first hole 211 and the second hole 212. After the refrigerant ejected from the first hole 211 and the second hole 212 collides with the reflection of the outer shell body 100 to the middle position, the branch pipe body 400 is arranged at the position where the mixing and dispersion degree of the refrigerant is the best, further improving the mixing and dispersion effect of the refrigerant entering the branch pipe body 400.
[0042] According to an embodiment provided by the present utility model, the refrigerant in the first chamber 310 flows upward, and the liquid inlet hole 110 is arranged at the bottom of the outer shell body 100.
[0043] In this embodiment, the top of the liquid inlet pipe 500 is communicated with the bottom of the first chamber 310, and the partition plate 200 is in a curved surface shape. When the system operates, the gas-liquid two-phase refrigerant throttled by the electronic expansion valve enters the first chamber 310 from the liquid inlet pipe 500. After the first mixing in the first chamber 310, the refrigerant is sprayed into the second chamber 320 from each spray hole 210 on the partition plate 200. Since the partition plate 200 is in a curved shape, the opening direction of the spray hole 210 will form a certain inclination angle with the inner wall of the second chamber 320. In this way, when the refrigerant is ejected from the spray hole 210, a part of the refrigerant will be reflected by the inner wall of the second chamber 320 at a certain angle to other areas of the second chamber 320, and another part of the refrigerant will flow along the inner wall of the second chamber 320 towards the middle until it moves to near the center line and collides with the refrigerant coming from the other direction. After a series of reflections and collisions, the gas-liquid two-phase refrigerant will be fully dispersed and mixed, so as to be evenly discharged from each branch pipe body 400, so as to achieve the purpose of uniform liquid distribution. And no matter how the liquid distributor is inclined, it will not affect its liquid distribution uniformity.
[0044] In other embodiments, the distribution of the spray holes 210 on the partition plate 200 can be reasonably adjusted according to the actual conditions such as the flow path and the wind field distribution of the heat exchanger. The sizes, shapes, quantities, arrangement modes, etc. of the spray holes 210 of the partition plate 200 can be different, depending on the actual situation. The bending diameter and radian of the partition plate 200 can be different, and in addition, the shape can also be different, such as polygonal, elliptical, parabolic, etc. As Figure 4 shown, the shape of the outer shell body 100 is not necessarily circular, and can be elliptical or other shapes.
[0045] According to an embodiment provided by the present utility model, the cross-sectional area of the first chamber 310 gradually decreases from bottom to top. In this embodiment, the refrigerant flows upward in the first chamber 310, and the partition plate 200 can be arranged in the liquid separation chamber 300 to gradually incline outward at a certain angle from bottom to top, so that the cross-sectional area of the first chamber 310 changes, and the cross-sectional area of the first chamber 310 gradually decreases along the flow direction of the refrigerant inside it.
[0046] During the process of the refrigerant flowing from the liquid inlet to the top of the outer housing 100, as the refrigerant continuously decreases and is affected by gravity, the flow rate of the refrigerant will become smaller and smaller as it goes up. An overly small flow rate is not conducive to the smooth ejection of the refrigerant from the spray holes 210 and its smooth entry into the branch pipe body 400. Therefore, the cross-sectional area of the first chamber 310 needs to decrease along the refrigerant flow direction so that the flow rate of the refrigerant in the first chamber 310 will not be too low.
[0047] The embodiment of the present utility model further provides an air conditioner, including the liquid distributor as described in the above embodiment.
[0048] For the air conditioner of the embodiment of the present utility model, with the above liquid distributor provided, in the air conditioner circulation system, the liquid distributor distributes the gas-liquid two-phase refrigerant to each pipeline of the evaporator for heat exchange. By using the liquid distributor of the embodiment of the present utility model, it can ensure uniform liquid distribution, ensure that the refrigerant in the branch with a large flow rate is completely evaporated, and the refrigerant in the branch with a small flow rate will not be prematurely evaporated, thus avoiding the problem of waste of heat exchange area. Therefore, the uniform liquid distribution of the liquid distributor of the embodiment of the present utility model can directly affect the heat exchange capacity of the evaporator, improve the performance of the air conditioner, and avoid the problem of the decline in the heat exchanger capacity caused by uneven liquid distribution of the liquid distributor.
[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A liquid distributor, characterized in that, It includes a housing body (100) and a partition plate (200). A liquid separation chamber (300) is provided inside the housing body (100). The partition plate (200) is arranged in the liquid separation chamber (300) and is adapted to divide the liquid separation chamber (300) into a first chamber (310) and a second chamber (320). The housing body (100) is provided with a liquid inlet hole (110) communicating with the first chamber (310). The partition plate (200) is provided with a spray hole (210). The first chamber (310) and the second chamber (320) are communicated through the spray hole (210). The cross-sectional area of the liquid inlet hole (110) is smaller than the cross-sectional area of the first chamber (310).
2. The dispenser according to claim 1, characterized in that, The center of the cross-section of the first chamber (310) is eccentrically arranged with respect to the center of the cross-section of the liquid separation chamber (300).
3. The dispenser according to claim 1, wherein The refrigerant incident angle of the spray hole (210) on the inner wall of the housing body (100) is an acute angle.
4. The dispenser according to claim 3, wherein The spray hole (210) includes a first hole (211) and a second hole (212). The first hole (211) and the second hole (212) are symmetrically arranged with respect to a set median line. The set median line is the connection line between the center of the first chamber (310) and the center of the liquid separation chamber (300).
5. The dispenser according to claim 4, characterized in that, Both the first hole (211) and the second hole (212) are multiple. The multiple first holes (211) are evenly distributed along the flowing direction of the refrigerant in the first chamber (310). The multiple second holes (212) are evenly distributed along the flowing direction of the refrigerant in the first chamber (310).
6. The dispenser according to claim 4, wherein It further includes a branch pipe body (400). The pipe wall of the housing body (100) is provided with a through hole. The branch pipe body (400) is inserted into the through hole and communicates with the second chamber (320).
7. The dispenser according to claim 6, wherein The branch pipe body (400) is arranged at the position corresponding to the set median line on the housing body (100).
8. The dispenser according to any one of claims 1 to 6, characterized in that, The refrigerant in the first chamber (310) flows upward from bottom to top. The liquid inlet hole (110) is arranged at the bottom of the housing body (100).
9. The dispenser according to claim 8, wherein The cross-sectional area of the first chamber (310) gradually decreases from bottom to top.
10. An air conditioner, characterized in that, It includes the liquid distributor according to any one of claims 1 to 9.