CN216347201U - Liquid storage device, compressor and refrigeration cycle system - Google Patents
Liquid storage device, compressor and refrigeration cycle system Download PDFInfo
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- CN216347201U CN216347201U CN202123154353.1U CN202123154353U CN216347201U CN 216347201 U CN216347201 U CN 216347201U CN 202123154353 U CN202123154353 U CN 202123154353U CN 216347201 U CN216347201 U CN 216347201U
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- 239000007788 liquid Substances 0.000 title claims abstract description 49
- 238000005057 refrigeration Methods 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 44
- 230000001174 ascending effect Effects 0.000 claims abstract description 42
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 241000237983 Trochidae Species 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 12
- 239000003921 oil Substances 0.000 description 43
- 239000003507 refrigerant Substances 0.000 description 39
- 238000005192 partition Methods 0.000 description 17
- 239000000314 lubricant Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000013021 overheating Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 238000009491 slugging Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
The embodiment of the application belongs to the technical field of refrigeration engineering, and particularly relates to a liquid storage device, a compressor and a refrigeration cycle system. Wherein, the reservoir includes: the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet and a second air outlet, wherein the shell is provided with a cavity; the descending pipe is positioned in the cavity, and one end of the descending pipe facing the top of the cavity is an open end; the ascending pipe is positioned in the cavity, and one end of the ascending pipe facing the top of the cavity is communicated with the air outlet; and the two ends of the communication elbow are respectively communicated with the other ends of the descending pipe and the ascending pipe facing the bottom of the cavity, wherein the inner diameter of the descending pipe is larger than that of the ascending pipe. By applying the technical scheme of the embodiment of the utility model, the problems of low energy efficiency and high gas flow noise caused by large gas flow resistance loss in the refrigeration cycle process are solved.
Description
Technical Field
The application belongs to the technical field of refrigeration engineering, and particularly relates to a liquid storage device, a compressor and a refrigeration cycle system.
Background
As shown in fig. 1, for the vertical scroll compressor 2, the air inlet 21 ' of the vertical scroll compressor 2 is located at the upper portion of the housing of the vertical scroll compressor 2, the air outlet 11 ' of the liquid accumulator 1 is disposed at the lower portion of the housing of the liquid accumulator 1, a portion of the pipeline 3 extends into the liquid accumulator 1 and faces the upper air inlet of the liquid accumulator 1, the upper air inlet of the liquid accumulator 1 and the port of the pipeline 3 are separated by the dividing partition plate 4 so that the air flow does not directly enter the pipeline 3, and the pipeline 3 is bent in a serpentine shape after penetrating out of the liquid accumulator 1 and is communicated with the air inlet 21 ' of the vertical scroll compressor 2, therefore, a longer pipeline 3 needs to be disposed between the air outlet 11 ' of the liquid accumulator 1 and the air inlet 21 ' of the vertical scroll compressor 2, and the air outlet 11 ' of the liquid accumulator 1 is connected with the air inlet 21 ' of the vertical scroll compressor 2. Thus, the vertical scroll compressor 2 has large gas flow resistance, serious suction overheating, serious energy attenuation and low energy efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a reservoir, a compressor and a refrigeration cycle system, and aims to solve the problem that the energy efficiency is low due to large gas flow resistance in the refrigeration cycle process.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: a reservoir, comprising: the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet and a second air outlet, wherein the shell is provided with a cavity; the descending pipe is positioned in the cavity, and one end of the descending pipe facing the top of the cavity is an open end; the ascending pipe is positioned in the cavity, and one end of the ascending pipe facing the top of the cavity is communicated with the air outlet; and the two ends of the communication elbow are respectively communicated with the other ends of the descending pipe and the ascending pipe facing the bottom of the cavity, wherein the inner diameter of the descending pipe is larger than that of the ascending pipe.
Optionally, the inner diameter of the pipe communicating with the elbow pipe is gradually reduced from the descending pipe to the ascending pipe.
Optionally, the down tube and the up tube are both straight tubes.
Optionally, the cross-sectional area S1 of the tube passage of the descending tube satisfies 25 π/14mm2＜S1＜32π/7mm2(ii) a The cross section S2 of the ascending tube meets 81 pi/14 mm2＜S2＜14πmm2(ii) a And the inner diameter of the communication elbow is larger than 16 mm.
Optionally, an oil return hole is formed in one of the pipe wall of the downward pipe close to the communication elbow, the pipe wall of the upward pipe close to the communication elbow and the pipe wall of the communication elbow, an oil duct communicated with the oil return hole is formed in the pipe wall provided with the oil return hole, and the oil duct is used for communicating with an oil groove of a compression blade of the vertical scroll compressor; or two of the descending pipe, the ascending pipe, the pipe wall and the pipe wall of the communicating elbow pipe are provided with oil return holes, and the pipe wall provided with the oil return holes is internally provided with an oil duct communicated with the oil return holes and communicated with an oil groove of a compression blade of the vertical scroll compressor; or the three parts of the pipe wall of the downward pipe close to the communication elbow, the pipe wall of the upward pipe close to the communication elbow and the pipe wall of the communication elbow are all provided with oil return holes, an oil duct communicated with the oil return holes is arranged in the pipe wall provided with the oil return holes, and the oil duct is used for communicating the oil grooves of the compression blades of the vertical scroll compressor.
Optionally, the hole diameter of the oil return hole is greater than or equal to 0.5mm and less than or equal to 2.0 mm.
Optionally, the reservoir further comprises a filter screen disposed in a conduit of one of the down tube, the communication elbow, and the up tube.
Optionally, the housing is a cartridge having a top shell, a bottom shell and side shells, and the first opening and the second opening are both opened on the top shell; the open end of the down tube is staggered with the air inlet, and/or the liquid storage device further comprises a first flow dividing partition plate, the first flow dividing partition plate is located in the cavity to separate the air inlet from the open end of the down tube, one end of the up tube penetrates through the first flow dividing partition plate to be communicated with the air outlet, the first flow dividing partition plate is provided with a first flow dividing hole, and the first flow dividing hole is staggered with the open end of the down tube.
Optionally, the housing is a cartridge having a top shell, a bottom shell and side shells, one of the first opening and the second opening is opened on the top shell, and the other of the first opening and the second opening is opened on the side shells; when the air inlet is positioned on the side shell, the opening of the open end of the down pipe is higher than the air inlet; when the air inlet is positioned on the top shell, the open end of the down pipe and the air inlet are staggered, and/or the liquid storage device further comprises a second flow dividing partition plate, the second flow dividing partition plate is positioned in the cavity to separate the air inlet from the open end of the down pipe, a second flow dividing hole is formed in the second flow dividing partition plate, and the second flow dividing hole and the open end of the down pipe are staggered.
According to another aspect of an embodiment of the present invention, there is provided a compressor. In particular, the compressor comprises an accumulator as described previously.
According to yet another aspect of the present invention, a refrigeration cycle system is provided. Specifically, the refrigeration cycle system includes a compressor as described above.
The embodiment of the application has at least the following beneficial effects:
the liquid storage device provided by the embodiment of the utility model is applied to realize gas-liquid separation of the circulating gaseous refrigerant, the liquid storage device adopts a pipeline design formed by the descending pipe, the communicating bent pipe and the ascending pipe, and the air outlet is arranged at the upper part of the shell, so that compared with the length of the pipeline which is arranged between the liquid storage device and the compressor in a snake-shaped bending way in the prior art, the length of the pipeline between the liquid storage device and the compressor is shorter, the gas flow resistance loss in the refrigerating cycle process is smaller, the suction overheating is less, and the energy efficiency of the refrigerant in the refrigerating cycle process is higher. In addition, as the descending pipe in the liquid storage device, the pipeline formed by the communicating bent pipe and the ascending pipe are arranged in the cavity of the shell, the on-way noise generated by gas flow in the refrigeration cycle process can be effectively reduced in the cavity, and a better silencing effect is achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic view of a prior art connection between a receiver and a vertical scroll compressor;
fig. 2 is a schematic structural view of a reservoir according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of a flow divider used in the reservoir of FIG. 2;
fig. 4 is a schematic structural view of a reservoir according to a second embodiment of the present invention;
fig. 5 is a schematic structural view of a reservoir according to a third embodiment of the present invention;
fig. 6 is a schematic diagram of a flow divider used in the reservoir of fig. 5.
Wherein, in the figures, the respective reference numerals:
1. a reservoir; 11', an air outlet; 2. a vertical scroll compressor; 21', an air inlet; 3. a pipeline; 11. a top shell; 12. a side casing; 13. a bottom case; 14. a first opening; 15. a second opening; 16. a cavity; 20. a down pipe; 30. an ascending pipe; 40. a communication elbow; 50. an oil return hole; 60. filtering with a screen; 70. a first flow-dividing baffle; 71. a first diverter orifice; 72. passing through the aperture; 80. a second flow-dividing partition; 81. a second flow dividing orifice; 100. an air inlet pipe; 200. and an air outlet pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present application embodiments and are not to be construed as limiting the present application embodiments.
In the description of the embodiments of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations and positional relationships illustrated in the drawings, which are used for convenience in describing the embodiments of the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the embodiments of the present application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
In the embodiments of the present application, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
The first embodiment is as follows:
as shown in fig. 2, a first embodiment of the present invention provides a reservoir. Specifically, the reservoir includes a housing, a down tube 20, an up tube 30 and a communication elbow 40, which, when specifically designed and assembled, the shell is provided with a cavity 16, the upper part of the shell is provided with a first opening 14 and a second opening 15, one of the first opening 14 and the second opening 15 is an air inlet, the other one of the first opening 14 and the second opening 15 is an air outlet (in the first embodiment, the first opening 14 is used as an air inlet, and the second opening 15 is used as an air outlet), the descending pipe 20 is positioned in the cavity 16, the ascending pipe 30 is positioned in the cavity 16, one end of the descending pipe 20 facing the top of the cavity is an open end, one end of the ascending pipe 30 facing the top of the cavity is communicated with the air outlet, the communication elbow 40 is positioned at the bottom of the cavity 16, two ends of the communication elbow 40 are respectively communicated with the other ends of the descending pipe 20 and the ascending pipe 30 facing the bottom of the cavity, wherein the pipe inner diameter of the descending pipe 20 is larger than the pipe inner diameter of the ascending pipe 30.
The accumulator is applied to a refrigeration cycle system, an air inlet is connected to an evaporator of the refrigeration cycle system through an air inlet pipe 100, an air outlet is connected to a vertical scroll compressor through an air outlet pipe 200, a gaseous refrigerant enters a cavity 16 of a shell from the air inlet pipe 100, and, it is required to ensure that the gaseous refrigerant introduced from the gas inlet port cannot directly enter the open end of the down tube 20, that is, the gaseous refrigerant, which enters from the gas inlet, first enters the cavity 16, so that minute droplets carried by the gaseous refrigerant can settle to the bottom of the cavity 16, then, the gaseous refrigerant enters the open end of the descending tube 20 from the cavity 16, and then flows along the airflow channel composed of the descending tube 20, the communication elbow 40 and the ascending tube 30, and the gaseous refrigerant is output from the air outlet and conveyed to the vertical scroll compressor along the air outlet tube 200 for compression.
The liquid storage device provided by the embodiment of the utility model is applied to realize gas-liquid separation of the circulating gaseous refrigerant, the liquid storage device adopts a pipeline design formed by the descending pipe 20, the communicating bent pipe 40 and the ascending pipe 30, and the air outlet is arranged at the upper part of the shell, so that compared with the length of a pipeline arranged in a serpentine bending way between the liquid storage device and the compressor in the prior art, the length of the pipeline between the liquid storage device and the compressor is shorter, the gas flow resistance in the refrigerating cycle process is smaller, the suction overheating is less, and the energy efficiency of the refrigerant in the refrigerating cycle process is higher.
Further, as the pipeline formed by the descending pipe 20, the communication elbow 40 and the ascending pipe 30 in the liquid storage device is arranged in the cavity 16 of the shell, the on-way noise generated by the gas flow in the refrigeration cycle process can be effectively reduced in the cavity 16, and a better silencing effect is achieved.
In the accumulator, since the inner diameter of the down tube 20 is larger than that of the up tube 30, that is, the cross section of the tube passage of the down tube 20 is larger than that of the tube passage of the up tube 30, the flow velocity of the gas refrigerant is increased when the gas refrigerant flows into the up tube 30 in the communication elbow 40, so that the amount of liquid refrigerant transferred into the compression chamber of the vertical scroll compressor per unit time is increased, and the compression efficiency of the vertical scroll compressor can be improved.
In the first embodiment, the inner diameter of the communication elbow 40 gradually decreases from the down pipe 20 to the up pipe 30, i.e., the inner diameter of the pipe passage of the communication elbow 40 is gradually decreased. The communicating bent pipe 40 with gradually changed inner diameter can effectively ensure that gaseous refrigerant obtains effective buffering effect in the process that the gaseous refrigerant flows to the ascending pipe 30 with small pipe diameter in the descending pipe 20 with large pipe diameter, the gaseous refrigerant gradually and increasingly flows into the ascending pipe 30 in the communicating bent pipe 40, and the phenomenon that the gaseous refrigerant generates flow velocity mutation in the flowing process to cause turbulence to generate air suction noise is avoided.
As shown in fig. 2, the down tube 20 and the up tube 30 are both straight tubes. Compared with a coiled pipe adopted by the liquid accumulator in the prior art, the liquid accumulator in the embodiment of the utility model has shorter pipeline length, namely the gas refrigerant flows in the liquid accumulator along the way, so that the flow resistance loss of the gas refrigerant along the way is effectively reduced, and the efficiency is improved.
In the first embodiment, the ascending pipe 30 has a cross section S2Satisfies 81 pi/14 mm2＜S2＜14πmm2When designing and calculating the cross-sectional area of the tube passage of the ascending tube 30 of the accumulator, it is necessary to calculate the volume and compression efficiency of the compression chamber of the vertical scroll compressor used in the refrigeration cycle system, that is, 1.3 × 10-3mm-1＜S2/V2＜3.14*10-3mm-1(wherein, V2Is the volume of the tube passage of the ascending tube 30), i.e. optionally when V is based on the above-mentioned constraints2The cross section S of the ascending tube 30 is determined by the volume of the tube passage of the ascending tube 30 and the length of the tube passage2Satisfies 81 pi/14 < S2< 14 π. Accordingly, the cross-sectional area S of the tube passage of the downer 201Satisfies 25 pi/14mm2＜S1＜32π/7mm2When designing the cross-sectional area of the channel of the down-flow channel 20 of the reservoir, it is calculated according to 4 x 10-4mm-1＜S1/V1＜1.03*10-3mm-1(wherein, V1Is the volume of the tube passage of the downcomer 20). Further, the inner diameter of the communication elbow 40 is preferably larger than 16mm, so as to improve the buffering effect when the gaseous refrigerant flows in the communication elbow 40 with variable diameter.
When the gaseous refrigerant circularly flows into the cavity 16 of the liquid accumulator, the gaseous refrigerant carries liquid drops, the liquid drops are refrigerant drops which are not completely gasified in the refrigerant circulating process and lubricating oil drops which are carried out by the refrigerant flowing from the vertical scroll compressor, gas-liquid separation is realized in the process of circularly flowing into the liquid accumulator, and the liquid drops are deposited at the bottom of the cavity 16 for accumulation.
In order to return the accumulated lubricating oil to the vertical scroll compressor to realize oil supplementing lubrication, an oil return hole 50 is formed in any one of the pipe wall of the descending pipe 20 close to the communication elbow 40, the pipe wall of the ascending pipe 30 close to the communication elbow 40 and the pipe wall of the communication elbow 40; or, two of the descending pipe 20, the ascending pipe 30 and the communication elbow 40 are provided with oil return holes 50; or, the down pipe 20 is close to the pipe wall of the communication elbow 40, and the up pipe 30 is close to the pipe wall of the communication elbow 40 and the pipe wall of the communication elbow 40, which are all provided with oil return holes 50. The number of the oil return holes 50 may be one or more. The lubricant oil stored in the liquid drops at the bottom of the cavity 16 floats on the liquid surface due to the density of the lubricant oil being less than that of the liquid refrigerant, and therefore, the lubricant oil first enters an oil passage (not shown) communicated with the oil return hole 50, the oil passage is arranged in the tube wall, and a butt oil passage communicated with the oil passage is also arranged in the tube wall of the outlet tube 200, and the butt oil passage is communicated with an oil groove of the compression plate, so that the lubricant oil returns to the oil groove of the compression plate under the negative pressure effect formed by the compression cavity of the vertical scroll compressor, thereby realizing oil supplement.
As shown in fig. 2, in the reservoir according to the first embodiment, the oil return hole 50 is formed on the wall of the ascending pipe 30 near the communication elbow 40.
Specifically, the hole diameter of the oil return hole 50 is 0.5mm or more and 2.0mm or less. Therefore, the liquid impact on the compression cavity of the vertical scroll compressor caused by the liquid return of the oil return hole 50 due to the overlarge oil return hole 50 is avoided, and meanwhile, the oil-starved abrasion of the vertical scroll compressor caused by the untimely oil return due to the small oil return hole 50 can be prevented.
In order to prevent the foreign substances from entering the compression chamber of the vertical scroll compressor to cause abrasion of the scroll blades, as shown in fig. 2, the accumulator further includes a filter 60, and the foreign substances are filtered by the filter 60 from the gaseous refrigerant after gas-liquid separation in the cavity 16. Specifically, the strainer 60 is disposed in any one of the down pipe 20, the communication elbow 40, and the up pipe 30. In one embodiment, as shown in FIG. 2, the screen 60 is mounted in the tube passage of the down tube 20 and is mounted near the open end to facilitate mounting and dismounting of the screen 60.
As shown in fig. 2, the shell of the accumulator is a cylindrical shell having a top shell 11, a bottom shell 13 and a side shell 12, and the accumulator is arranged in parallel with the vertical scroll compressor when actually assembled for use in a refrigeration cycle. In this receiver, both the first opening 14 and the second opening 15 are opened in the top shell 11, so that the length of the outlet pipe 200 between the outlet port of the receiver and the inlet port of the vertical scroll compressor can be shortened as much as possible, and the length along which the gas flows can be shortened as much as possible. In order to prevent the gaseous refrigerant entering the cavity 16 from the air inlet of the top shell 11 from directly flowing into the open end of the down tube 20 (i.e., to prevent liquid droplets carried by the gaseous refrigerant from directly entering the open end of the down tube 20 into the compression chamber of the vertical scroll compressor to generate liquid slugging), the open end of the down tube 20 and the air inlet are offset from each other. And/or, as shown in fig. 2, the accumulator of the first embodiment further includes a first flow dividing partition 70, the first flow dividing partition 70 being located in the cavity 16 to separate the inlet port from the open end of the down tube 20, and one end of the up tube 30 communicating with the outlet port through the first flow dividing partition 70 via the through hole 72, so that the gaseous refrigerant entering from the inlet port flows directly to the first flow dividing partition 70, and the droplets carried by the gaseous refrigerant adhere to the first flow dividing partition 70 without directly dropping into the open end of the down tube 20. As shown in fig. 3, the first flow dividing partition plate 70 is opened with a first flow dividing hole 71, the first flow dividing hole 71 may be one or a plurality of, the first flow dividing hole 71 is offset from the open end of the downgoing pipe 20, the gaseous refrigerant blown to the first flow dividing partition plate 70 flows from the first flow dividing hole 71 to the cavity 16 and then enters the open end of the downgoing pipe 20 (gas flow path shown by arrow in fig. 2), and droplets adhered to the first flow dividing partition plate 70 are gathered enough to be accumulated from the first flow dividing hole 71 to the bottom of the cavity 16.
Example two:
the reservoir of the second embodiment has the following differences compared to the reservoir of the first embodiment.
As shown in fig. 4, one of the first opening 14 and the second opening 15 is opened on the top case 11, and the other of the first opening 14 and the second opening 15 is opened on the side case 12. In the accumulator of the second embodiment, the first opening 14 is an air inlet, and the second opening 15 is an air outlet, in the accumulator of the second embodiment, the air inlet is located on the side shell 12, and the opening of the open end of the descending tube 20 is higher than the air inlet, so that the gaseous refrigerant blown into the cavity 16 from the air inlet will first contact the tube wall of the descending tube 20 and/or the ascending tube 30, and the liquid drops carried in the gaseous refrigerant will adhere to the tube wall of the descending tube 20 and/or the ascending tube 30, and then the liquid drops fall to the bottom of the cavity 16 along the tube wall after being converged to be accumulated.
Compared with the reservoir in the first embodiment, the reservoir in the second embodiment has the same structure except for the above structure, and thus, the description thereof is omitted.
Example three:
the reservoir of the third embodiment has the following differences compared to the reservoir of the first embodiment.
As shown in fig. 5, one of the first opening 14 and the second opening 15 is opened on the top case 11, and the other of the first opening 14 and the second opening 15 is opened on the side case 12. In the accumulator of the third embodiment, the first opening 14 is an air inlet, and the second opening 15 is an air outlet, in the accumulator of the third embodiment, the air inlet is located on the top shell 11, and the open end of the down tube 20 and the air inlet are staggered from each other, so that the gaseous refrigerant entering the cavity 16 from the air inlet of the top shell 11 is prevented from directly flowing into the open end of the down tube 20, that is, liquid drops carried by the gaseous refrigerant are prevented from directly entering the open end of the down tube 20 into the compression cavity of the vertical scroll compressor to generate liquid slugging.
In this embodiment, the accumulator further includes a second dividing baffle 80, the second dividing baffle 80 being positioned within the cavity 16 to separate the inlet port from the open end of the downcomer 20 such that gaseous refrigerant entering from the inlet port flows directly to the second dividing baffle 80, and droplets carried by the gaseous refrigerant adhere to the second dividing baffle 80 and do not fall directly into the open end of the downcomer 20. As shown in fig. 6, the second division plate 80 is provided with a second division hole 81, the second division hole 81 may be one or a plurality of, the second division hole 81 is offset from the open end of the downflow pipe 20, the gaseous refrigerant blown to the second division plate 80 flows from the second division hole 81 to the cavity 16 and then enters the open end of the downflow pipe 20 (gas flow path shown by arrow in fig. 5), and the droplets adhered to the second division plate 80 are gathered sufficiently and then will drop from the second division hole 81 to the bottom of the cavity 16 to be accumulated.
Compared with the reservoir of the first embodiment, the reservoir of the third embodiment has the same structure except for the above structure, and thus, the description thereof is omitted.
According to another aspect of an embodiment of the present invention, there is provided a compressor. In particular, the compressor comprises an accumulator as described previously.
According to yet another aspect of the present invention, a refrigeration cycle system is provided. Specifically, the refrigeration cycle system includes a compressor as described above.
The above description is only for the purpose of illustrating the preferred embodiments of the present application and is not intended to limit the present application, and any modifications, equivalents and improvements made within the spirit and principle of the embodiments of the present application should be included in the scope of the present application.
Claims (11)
1. A reservoir, comprising:
the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet and a second air outlet, wherein the shell is provided with a cavity, the upper part of the shell is provided with the first opening and the second opening, one of the first opening and the second opening is the air inlet, and the other of the first opening and the second opening is the air outlet;
the descending pipe is positioned in the cavity, and one end, facing the top of the cavity, of the descending pipe is an open end;
the ascending pipe is positioned in the cavity, and one end, facing the top of the cavity, of the ascending pipe is communicated with the air outlet;
the communication elbow is connected to the bottom of the cavity, two ends of the communication elbow are respectively communicated with the other ends, facing the bottom of the cavity, of the descending pipe and the ascending pipe, and the inner diameter of the descending pipe is larger than that of the ascending pipe.
2. The reservoir of claim 1,
the pipe inner diameter of the communication elbow pipe is gradually reduced from the descending pipe to the ascending pipe.
3. The reservoir of claim 2,
the down pipe and the up pipe are both straight pipes.
4. Reservoir according to claim 3,
cross-sectional area S of the tube passage of the downer1Satisfy 25 pi/14 mm2＜S1＜32π/7mm2(ii) a Cross section S of the ascending tube2Satisfies 81 pi/14 mm2＜S2＜14πmm2(ii) a And the inner diameter of the communication elbow is larger than 16 mm.
5. The reservoir of claim 1,
an oil return hole is formed in one of the pipe wall of the descending pipe close to the communication elbow, the pipe wall of the ascending pipe close to the communication elbow and the pipe wall of the communication elbow, an oil duct communicated with the oil return hole is formed in the pipe wall provided with the oil return hole, and the oil duct is used for being communicated to an oil groove of a compression blade of the vertical scroll compressor;
or two of the pipe wall of the descending pipe close to the communication elbow, the pipe wall of the ascending pipe close to the communication elbow and the pipe wall of the communication elbow are provided with oil return holes, and an oil duct communicated with the oil return holes is arranged in the pipe wall provided with the oil return holes and is used for being communicated to an oil groove of a compression blade of the vertical scroll compressor;
or the down pipe is close to the pipe wall of the communication elbow, the up pipe is close to the pipe wall of the communication elbow and the pipe wall of the communication elbow, oil return holes are formed in the three, and an oil duct communicated with the oil return holes is arranged in the pipe wall provided with the oil return holes and is used for communicating the oil duct to an oil groove of a compression blade of the vertical scroll compressor.
6. The reservoir of claim 5,
the diameter of the oil return hole is larger than or equal to 0.5mm and smaller than or equal to 2.0 mm.
7. The reservoir of claim 1,
the liquid storage device further comprises a filter screen, and the filter screen is arranged in a pipeline of one of the descending pipe, the communication bent pipe and the ascending pipe.
8. Reservoir according to any one of claims 1 to 7,
the shell is a barrel shell with a top shell, a bottom shell and a side shell, and the first opening and the second opening are both opened on the top shell;
the open end of down tube with the air inlet staggers each other, and/or, the reservoir still includes first reposition of redundant personnel baffle, first reposition of redundant personnel baffle is located in order to separate in the cavity the air inlet with the open end of down tube, the one end of up tube is passed first reposition of redundant personnel baffle with the gas outlet is linked together, first reposition of redundant personnel baffle is opened there is first reposition of redundant personnel hole, first reposition of redundant personnel hole with the open end of down tube staggers each other.
9. Reservoir according to any one of claims 1 to 7,
the shell is a barrel shell with a top shell, a bottom shell and side shells;
the air inlet is positioned on the side shell, and the opening of the open end of the down pipe is higher than the air inlet; or, the air inlet is located on the topshell, the open end of down tube with the air inlet staggers each other, and/or, the reservoir still includes second flow divider board, the second flow divider board is located in order to separate in the cavity the air inlet with the open end of down tube, the second flow divider board is opened there is the second reposition of redundant personnel orifice, the second reposition of redundant personnel orifice with the open end of down tube staggers each other.
10. A compressor, characterized in that,
the compressor comprises an accumulator according to any one of claims 1-9.
11. A refrigeration cycle system is characterized in that,
the refrigeration cycle system includes the compressor of claim 10.
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| CN202123154353.1U CN216347201U (en) | 2021-12-15 | 2021-12-15 | Liquid storage device, compressor and refrigeration cycle system |
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| CN202123154353.1U CN216347201U (en) | 2021-12-15 | 2021-12-15 | Liquid storage device, compressor and refrigeration cycle system |
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| CN216347201U true CN216347201U (en) | 2022-04-19 |
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