CN216745050U

CN216745050U - Liquid storage device

Info

Publication number: CN216745050U
Application number: CN202123024341.7U
Authority: CN
Inventors: 廖鹏飞; 李宇航
Original assignee: ZHUHAI HUAYU METAL CO LTD
Current assignee: ZHUHAI HUAYU METAL CO LTD
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-06-14
Anticipated expiration: 2031-12-02

Abstract

The utility model relates to the field of refrigeration technology, especially, relate to a liquid storage device. The liquid storage device comprises a barrel, a filter screen and an air inlet pipe, wherein the barrel is provided with an inner cavity, the filter screen is arranged in the inner cavity, and the air inlet pipe is arranged at one end of the barrel and communicated with the inner cavity; the filter screen is provided with an exhaust hole communicated with the inner cavity, and the orthographic projection of the air inlet hole on the air inlet pipe on the filter screen at least overlaps with the exhaust hole part along the axial direction of the air inlet pipe. Compared with the prior art, the utility model has the advantages of: through making the orthographic projection of the inlet port on the filter screen in the intake pipe overlap with the exhaust hole part at least to make and form a circulation passageway at least between inlet port and the exhaust hole, when producing the hydrops in the inner chamber, lubricating oil can in time be discharged from the exhaust hole, prevents that lubricating oil from all flowing back from the air inlet and going out, arouses the jam of intake pipe.

Description

Liquid storage device

Technical Field

The utility model relates to the field of refrigeration technology, especially, relate to a liquid storage device.

Background

The liquid accumulator is an important part in a refrigeration system, is usually arranged between an evaporator and a compressor, and has the functions of storing lubricating oil, separating gas from liquid, filtering impurities and the like.

In the existing liquid storage device, liquid accumulation in the liquid storage device is usually generated due to the blockage of an oil return hole, so that a series of problems of blockage of an air inlet pipe, idling of a compressor and the like are caused.

SUMMERY OF THE UTILITY MODEL

In view of this, to above-mentioned technical problem, the utility model provides a reservoir.

In order to solve the technical problem, the utility model provides a following technical scheme:

a liquid storage device comprises a barrel, a filter screen and an air inlet pipe, wherein the barrel is provided with an inner cavity, the filter screen is arranged in the inner cavity, and the air inlet pipe is arranged at one end of the barrel and communicated with the inner cavity; the filter screen is provided with an exhaust hole communicated with the inner cavity, and the orthographic projection of the air inlet hole on the air inlet pipe on the filter screen is at least partially overlapped with the exhaust hole along the axial direction of the air inlet pipe.

It can be understood that this application is through making inlet port in the intake pipe is in orthographic projection on the filter screen at least with exhaust hole part overlaps, thereby makes the inlet port with form a circulation channel between the exhaust hole at least, work as when producing the hydrops in the inner chamber, lubricating oil can follow in time discharge in exhaust hole department prevents that lubricating oil is whole to be followed the air inlet backward flow goes out, causes the jam of intake pipe.

In one embodiment, the lowest point of the hole wall of the exhaust hole is lower than the highest point of the hole wall of the air inlet hole along the direction perpendicular to the axis of the cylinder body.

In one embodiment, the lowest point of the hole wall of the exhaust hole is positioned between the highest point of the hole wall of the air inlet hole and the central axis of the air inlet hole along the direction perpendicular to the axis of the cylinder body.

In one embodiment, the lowest point of the exhaust hole wall is located between the central axis of the air inlet hole and the lowest point of the air inlet hole wall along the direction perpendicular to the axis of the cylinder body.

In one embodiment, the lowest point of the vent hole wall is lower than the lowest point of the air inlet pipe wall along the direction perpendicular to the axis of the cylinder body.

It can be understood that, along the direction perpendicular to the axis of the cylinder body, the lowest point of the hole wall of the exhaust hole is lower than the lowest point of the pipe wall of the air inlet pipe, so that when liquid loading is generated in the inner cavity, all lubricating oil is discharged from the exhaust hole, and the air inlet pipe is not influenced at all.

In one embodiment, the air inlet pipe is arranged between the highest point of the barrel and the central axis of the barrel along the direction perpendicular to the axis of the barrel.

It can be understood that the liquid storage space in the barrel is improved by arranging the air inlet pipe between the highest point of the barrel and the central axis of the barrel along the direction perpendicular to the axis of the barrel.

In one embodiment, an air outlet pipe communicated with the inner cavity is further arranged at one end, far away from the air inlet pipe, of the cylinder, and the filter screen is arranged close to the air outlet pipe relative to the air inlet pipe along the axial direction of the cylinder.

It can be understood that the filter screen is arranged close to the air outlet pipe relative to the air inlet pipe, so that noise caused by impact of lubricating oil due to the fact that the filter screen is too close to the air inlet pipe is avoided.

In one embodiment, the filter screen includes a net rack, the exhaust holes are formed in the net rack, oil return holes are further formed in the net rack, the oil return holes are located at one end, close to the air outlet pipe, of the net rack, and the exhaust holes are located at one end, far away from the air outlet pipe, of the net rack.

It can be understood that the mesh frame is provided with the oil return hole, so that the lubricating oil in the cylinder returns through the oil return hole.

In one embodiment, the filter screen further comprises a mesh cloth fixed on the net rack, the mesh cloth is arranged close to the air inlet pipe relative to the net rack, and a gap is formed between the mesh cloth and the net rack.

It will be appreciated that by providing a gap between the mesh and the screen frame, a filtered air flow gap is formed between the mesh and the screen frame.

In one embodiment, the net rack comprises a flat plate part perpendicular to the axis of the cylinder, a flange part extending axially towards the cylinder and a bending part bending towards the center of the cylinder along the edge circumference of the flat plate part, the edge of the net cloth is fixed on the bending part, and the exhaust hole and the oil return hole are arranged on the flat plate part.

Compared with the prior art, this application is through making inlet port in the intake pipe is in orthographic projection on the filter screen at least with exhaust hole part overlaps, thereby makes the inlet port with form a circulation passageway at least between the exhaust hole, work as when producing the hydrops in the inner chamber, lubricating oil can follow exhaust hole department in time discharges, prevents that lubricating oil is whole to be followed the air inlet backward flow goes out, arouses the jam of intake pipe.

Drawings

Fig. 1 is a schematic structural diagram of a liquid storage device provided by the present invention;

fig. 2 is a schematic structural view of the net rack provided by the present invention.

The symbols in the figures represent the following:

100. a reservoir; 10. a barrel; 11. an inner cavity; 12. an end cap; 20. a filter screen; 21. a net frame; 211. an exhaust hole; 212. an oil return hole; 213. a flat plate portion; 214. a flange portion; 215. a bending section; 22. screen cloth; 30. an air inlet pipe; 31. an air inlet; 40. and an air outlet pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides a liquid storage device 100, wherein the liquid storage device 100 is mainly used in an air conditioning system, and is generally installed between an air conditioner evaporator and a compressor. When the load of the air conditioning system is small, the lubricating oil can flow back to the liquid storage device 100 to stabilize the circulation amount of the lubricating oil in the system, so that the air conditioning system is in a normal operation state; when a part of the air conditioning system breaks down and needs to be repaired, the lubricating oil in the air conditioning system can be collected into the reservoir 100 through certain operation, so that waste caused by outflow of a large amount of lubricating oil is avoided.

In order to solve the problems existing in the existing liquid storage device 100, the utility model provides a liquid storage device 100, which comprises a cylinder body 10, a filter screen 20 and an air inlet pipe 30, wherein the cylinder body 10 is provided with an inner cavity 11, the filter screen 20 is arranged in the inner cavity 11, and the air inlet pipe 30 is arranged at one end of the cylinder body 10 and is communicated with the inner cavity 11; the filter screen 20 is provided with an exhaust hole 211 communicated with the inner cavity 11, and along the axial direction of the air inlet pipe 30, the orthographic projection of the air inlet hole 31 on the air inlet pipe 30 on the filter screen 20 is at least partially overlapped with the exhaust hole 211.

It should be noted that, this application is through making the orthographic projection of inlet port 31 on the intake pipe 30 on filter screen 20 overlap with exhaust hole 211 part at least to make and form a circulation channel between inlet port 31 and the exhaust hole 211 at least, when producing the hydrops in inner chamber 11, lubricating oil can be followed exhaust hole 211 and in time discharged, prevents that lubricating oil is whole to go out from the air inlet backward flow, causes the jam of intake pipe 30.

In the present application, the liquid reservoir 100 is a horizontal liquid reservoir 100. The description of the terms "high, low, up, down, etc. as designed herein is therefore made with reference to the normal mounting position of the reservoir 100.

As shown in fig. 1, an air outlet pipe 40 communicated with the inner cavity 11 is further provided at an end of the cylinder 10 away from the air inlet pipe 30. The lubricant enters the inner cavity 11 from the inlet pipe 30 and then flows out of the inner cavity 11 from the outlet pipe 40.

In this embodiment, the inlet pipe 30 and the outlet pipe 40 are made of copper, so as to facilitate welding between a user and other pipes in the refrigeration system, and in other embodiments, the inlet pipe 30 and the outlet pipe 40 may also be made of stainless steel or other materials.

Further, an end cover 12 is arranged at one end of the cylinder 10 close to the air outlet pipe 40, and the air outlet pipe 40 is installed on the end cover 12. Compared with the existing liquid storage device, the liquid storage device 100 provided by the embodiment does not need to be provided with an air outlet connecting pipe in the cylinder 10, so that the installation is convenient by only arranging the end cover 12, and the installation process of the liquid storage device 100 is simplified.

Further, the filtering net 20 includes a net frame 21 and a net cloth 22. The net cloth 22 is fixed on the net frame 21, and the net cloth 22 is arranged close to the air inlet pipe 30 relative to the net frame 21.

Specifically, a gap is provided between the mesh 22 and the net frame 21. When the lubricant enters the inner cavity 11 from the air inlet pipe 30 and enters the gap between the mesh 22 and the net frame 21 through the mesh 22, a filtering air flow gap is formed between the mesh 22 and the net frame 21.

Alternatively, the net frame 21 and the barrel 10 may be fixedly connected by welding or riveting, which is not limited herein.

Furthermore, the exhaust hole 211 is opened on the net rack 21, and the net rack 21 is also opened with an oil return hole 212. The exhaust hole 211 and the oil return hole 212 are respectively positioned at the upper side and the lower side of the central axis of the net rack 21, the oil return hole 212 is positioned at one side of the net rack 21 close to the air outlet pipe 40, and the exhaust hole 211 is positioned at one side of the net rack 21 far away from the air outlet pipe 40. The exhaust hole 211 and the oil return hole 212 are used for the circulation of the lubricating oil in the cylinder 10.

Specifically, the net frame 21 includes a flat plate portion 213 perpendicular to the axis of the cylinder 10, a flange portion 214 disposed along the edge of the flat plate portion 213 and extending toward the axis of the cylinder 10, and a bent portion 215 bent toward the center of the cylinder 10 along the edge of the port of the flange portion 214, the edge of the mesh cloth 22 is fixed on the bent portion 215, and the exhaust hole 211 and the oil return hole 212 are disposed on the flat plate portion 213. Specifically, the mesh 22 may be fixed on the bent portion 215 by gluing.

Specifically, the filter screen 20 is disposed in the inner chamber 11 adjacent to the outlet duct 40 with respect to the inlet duct 30. If the filter 20 is disposed close to the inlet pipe 30 relative to the outlet pipe 40, the lubricant flowing from the inlet pipe 30 into the inner cavity 11 may have short-range impact with the filter 20 to generate noise, and therefore, the inlet pipe 30 needs to be spaced apart from the filter 20 to reduce the impact of the lubricant.

Further, the air inlet pipe 30 is disposed between the highest point of the cylinder 10 and the central axis of the cylinder 10 in a direction perpendicular to the axial line of the cylinder 10. Because the utility model provides a what reservoir 100 adopted is horizontal reservoir 100, so according to the mounting means of this reservoir 100, the lubricating oil and the lubricating oil that get into inner chamber 11 from intake pipe 30 are along the perpendicular to barrel 10 axis direction rising, consequently if crossing low excessively of intake pipe 30 setting, then can reduce the liquid storage volume in the barrel 10 to a certain extent. The air inlet tube 30 is disposed between the highest point of the bowl 10 and the central axis of the bowl 10 to thereby promote the liquid storage space within the bowl 10.

Generally speaking, under the normal operating condition of the reservoir 100, the problem of blocking of the oil return hole 212 is inevitably generated, when the oil return hole 212 is blocked, the lubricating oil accumulated in the cylinder 10 cannot be smoothly discharged through the oil return hole 212, and as the lubricating oil in the inner cavity 11 is more and more, the inside liquid accumulation of the cylinder 10 is likely to be caused, and in a serious condition, the air inlet pipe 30 is even blocked, so that the compressor idles.

In order to solve the problem, at least one flow channel needs to be formed between the exhaust hole 211 and the air inlet hole 31, so that the exhaust hole 211 can pass through lubricating oil, and the lubricating oil can be discharged through the exhaust hole 211 before blocking the air inlet hole 31, thereby ensuring that the air inlet pipe 30 cannot be blocked. There are various embodiments of the positional relationship between the intake holes 31 and the exhaust holes 211 on the premise that at least one communication passage is formed between the exhaust holes 211 and the intake holes 31.

In one embodiment, the lowest point of the hole wall of the exhaust hole 211 is lower than the highest point of the hole wall of the intake hole 31 along the direction perpendicular to the axis of the cylinder 10, and the lowest point of the hole wall of the exhaust hole 211 is located between the highest point of the hole wall of the intake hole 31 and the central axis of the intake hole 31. In this embodiment, as the lubricant in the inner cavity 11 gradually rises, since the lowest point of the hole wall of the air hole is located between the highest point of the hole wall of the air inlet hole 31 and the central axis of the air inlet hole 31, when the lubricant in the reservoir 100 reaches the maximum liquid storage height, the lubricant does not submerge and block the opening of the air inlet pipe 30 due to the flow channel existing between the air inlet hole 31 and the air outlet hole 211, thereby ensuring that the flow path of the lubricant is unblocked under the condition that the oil return hole 212 is blocked.

In one embodiment, the lowest point of the hole wall of the exhaust hole 211 is lower than the highest point of the hole wall of the intake hole 31 in the direction perpendicular to the axial line of the cylinder 10, and the lowest point of the hole wall of the exhaust hole 211 is located between the central axis of the intake hole 31 and the lowest point of the hole wall of the intake hole 31. In this embodiment, as the lubricant in the inner cavity 11 gradually rises, since the lowest point of the hole wall of the air outlet hole 211 is located between the central axis of the air inlet hole 31 and the lowest point of the hole wall of the air inlet hole 31, when the lubricant in the reservoir 100 reaches the maximum liquid storage height, the lubricant does not submerge and block the opening of the air inlet pipe 30 due to the flow passage between the air inlet hole 31 and the air outlet hole 211, thereby ensuring that the flow path of the lubricant is unblocked in case of the blockage of the oil return hole 212.

In one embodiment, the lowest point of the wall of the exhaust hole 211 is lower than the lowest point of the wall of the intake pipe 30 along the direction perpendicular to the axis of the cylinder 10. In this embodiment, as the lubricant in the inner cavity 11 gradually rises, since the lowest point of the hole wall of the exhaust hole 211 is lower than the lowest point of the pipe wall of the air inlet pipe 30, the lubricant can be preferentially discharged from the exhaust hole 211, so as to ensure that when liquid loading is generated in the inner cavity 11, the lubricant is completely discharged from the exhaust hole 211, and the air inlet pipe 30 is not affected at all.

In the working process of the embodiment, the gas-liquid mixed lubricating oil and the lubricating oil enter the inner cavity 11 from the gas inlet pipe 30, the gas-state lubricating oil is discharged from the gas outlet pipe 40 through the exhaust hole 211, the liquid-state lubricating oil is gasified into the gas-state lubricating oil in the liquid storage space and then enters the gas outlet pipe 40 through the exhaust hole 211, the lubricating oil is stored at the bottom of the liquid storage space, and when the oil return hole 212 is unblocked, the lubricating oil flows into the gas outlet pipe 40 through the oil return hole 212. Along with lubricating oil in the inner chamber 11 risees gradually, if oil gallery 212 is blockked up this moment, then because there is a circulation passageway all the time between exhaust hole 211 and the inlet port 31, then when producing the hydrops in the inner chamber 11, lubricating oil can get into from inlet port 31 and discharge from exhaust hole 211, prevents that lubricating oil from blockking up inlet port 31 completely, leads to lubricating oil can not get into the compressor through the reservoir, leads to compressor idle running.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A liquid storage device comprises a cylinder body (10), a filter screen (20) and an air inlet pipe (30), wherein the cylinder body (10) is provided with an inner cavity (11), the filter screen (20) is installed in the inner cavity (11), and the air inlet pipe (30) is installed at one end of the cylinder body (10) and communicated with the inner cavity (11);

the air filter is characterized in that the filter screen (20) is provided with an exhaust hole (211) communicated with the inner cavity (11), and the orthographic projection of an air inlet hole (31) on the air inlet pipe (30) on the filter screen (20) is at least partially overlapped with the exhaust hole (211) along the axial direction of the air inlet pipe (30).

2. Reservoir according to claim 1, characterized in that, in a direction perpendicular to the axis of the cartridge (10), the lowest point of the wall of the outlet hole (211) is lower than the highest point of the wall of the inlet hole (31).

3. Reservoir according to claim 2, characterized in that, in a direction perpendicular to the axis of the cartridge (10), the lowest point of the wall of the outlet hole (211) is located between the highest point of the wall of the inlet hole (31) and the central axis of the inlet hole (31).

4. Reservoir according to claim 2, characterized in that, in a direction perpendicular to the axis of the cylinder (10), the lowest point of the wall of the outlet hole (211) is located between the central axis of the inlet hole (31) and the lowest point of the wall of the inlet hole (31).

5. The reservoir according to claim 1, characterized in that, along the direction perpendicular to the axis of the cylinder (10), the lowest point of the wall of the air outlet hole (211) is lower than the lowest point of the wall of the air inlet pipe (30).

6. Reservoir according to claim 1, characterized in that the air inlet duct (30) is arranged between the highest point of the cartridge (10) and the central axis of the cartridge (10) in a direction perpendicular to the axis of the cartridge (10).

7. The liquid storage device according to claim 1, wherein an air outlet pipe (40) communicated with the inner cavity (11) is further arranged at one end of the cylinder (10) far away from the air inlet pipe (30), and the filter screen (20) is arranged close to the air outlet pipe (40) relative to the air inlet pipe (30) along the axial direction of the cylinder (10).

8. The liquid storage device according to claim 7, wherein the filter screen (20) comprises a net rack (21), the exhaust hole (211) is formed in the net rack (21), an oil return hole (212) is further formed in the net rack (21), the oil return hole (212) is located at one end, close to the air outlet pipe (40), of the net rack (21), and the exhaust hole (211) is located at one end, far away from the air outlet pipe (40), of the net rack (21).

9. The liquid reservoir according to claim 8, wherein the filter screen (20) further comprises a mesh (22) fixed on the net rack (21), the mesh (22) is disposed close to the air inlet pipe (30) relative to the net rack (21), and a gap is provided between the mesh (22) and the net rack (21).

10. The reservoir according to claim 9, wherein the net frame (21) comprises a flat plate portion (213) perpendicular to the axis of the cylinder (10), a flange portion (214) axially extending toward the cylinder (10) and a bending portion (215) bending toward the center of the cylinder (10) along the edge of the flat plate portion (213), the edge of the net cloth (22) is fixed on the bending portion (215), and the exhaust hole (211) and the oil return hole (212) are arranged on the flat plate portion (213).