CN209763565U

CN209763565U - gas-liquid separator

Info

Publication number: CN209763565U
Application number: CN201920065608.0U
Authority: CN
Inventors: 田鹏; 姚海勇; 陈永杰
Original assignee: Zhejiang Dunan Machinery Co Ltd
Current assignee: Zhejiang Dunan Machinery Co Ltd
Priority date: 2018-01-16
Filing date: 2019-01-15
Publication date: 2019-12-10
Anticipated expiration: 2029-01-15

Abstract

The utility model relates to a refrigeration technology field especially relates to a vapour and liquid separator. The utility model provides a gas-liquid separator, includes casing, intake pipe, outlet duct, gives vent to anger and takes over and the filter, the intake pipe and the outlet duct install respectively in on the casing, and with the inside intercommunication of casing, give vent to anger take over install in the casing, the one end of taking over of giving vent to anger with the outlet duct is connected, and the other end is the air inlet, the mounting groove has been seted up on the outer wall of taking over of giving vent to anger, the tank bottom of mounting groove seted up with give vent to anger the oil gallery of taking over inside intercommunication, the filter install in the mounting groove, the export of filter with the oil gallery intercommunication, the filter is used for filtering. The utility model has the advantages that: the installation is convenient, the liquid refrigerant can be reduced from entering the compressor, and the refrigeration efficiency is improved.

Description

Gas-liquid separator

Technical Field

The utility model relates to a refrigeration technology field especially relates to a vapour and liquid separator.

Background

The gas-liquid separator is an important accessory of the refrigerating unit, is positioned at the air suction end of the compressor, and plays a role in separating gas-liquid mixed refrigerant entering the compressor, preventing a large amount of liquid refrigerant from directly entering the compressor to generate liquid impact to damage the compressor and reduce the refrigerating efficiency.

The existing gas-liquid separator generally comprises a shell, an air inlet pipe, an air outlet connecting pipe and a filter, wherein the air inlet pipe and the air outlet pipe are arranged on the shell, the air outlet connecting pipe is contained in the shell, a positioning hole is formed in the air outlet connecting pipe, and the filter is directly arranged in the positioning hole. The gas-liquid mixed refrigerant, the lubricating oil and the impurities enter the shell from the gas inlet pipe, and the gas refrigerant enters the compressor through the gas outlet connecting pipe and the gas outlet pipe; the liquid refrigerant, the lubricating oil and the impurities are filtered by the filter and directly enter the air outlet connecting pipe, and then enter the compressor through the air outlet pipe. However, the filter is inconvenient to install; and more liquid refrigerant is still introduced into the compressor in the lubricating oil filtered by the filter and the liquid refrigerant.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a gas-liquid separator which is convenient to install and process and can reduce the liquid refrigerant from entering the compressor.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

The utility model provides a gas-liquid separator, includes casing, intake pipe, outlet duct, gives vent to anger and takes over and the filter, the intake pipe and the outlet duct install respectively in on the casing, and with the inside intercommunication of casing, give vent to anger take over install in the casing, the one end of taking over of giving vent to anger with the outlet duct is connected, and the other end is the air inlet, the mounting groove has been seted up on the outer wall of taking over of giving vent to anger, the tank bottom of mounting groove seted up with give vent to anger the oil gallery of taking over inside intercommunication, the filter install in the mounting groove, the export of filter with the oil gallery intercommunication, the filter is used for filtering.

In one embodiment, the bottom surface of the mounting groove is a mounting plane, and the filter is mounted on the mounting plane.

It will be appreciated that the bottom surface of the mounting groove is a mounting plane, which may further facilitate the mounting of the filter.

In one embodiment, the air outlet connecting pipe is U-shaped, and the U-shaped opening of the air outlet connecting pipe faces to one end of the shell, on which the air outlet pipe is arranged.

In one embodiment, the filter includes a positioning cylinder and a filter screen, one end of the positioning cylinder is mounted on the mounting plane and the oil return hole is accommodated in the positioning cylinder, and the other end of the positioning cylinder is used for mounting the filter screen.

In one embodiment, the end face of the positioning cylinder at the end far away from the filter screen is a matching face, and the matching face is a plane and is attached to the installation plane.

Because the matching surface is a plane, the contact area between the positioning cylinder and the mounting plane can be increased, and the filter can be mounted more firmly.

In one embodiment, the positioning cylinder is welded with the air outlet connecting pipe.

In one embodiment, one end of the positioning cylinder, which is far away from the filter screen, is provided with a convex part, the convex part protrudes along the radial direction of the positioning cylinder, and the convex part is installed on the installation plane.

The convex part is arranged, so that the contact area between the positioning cylinder and the mounting plane can be further increased, and the positioning cylinder is more firmly mounted.

In one embodiment, the housing includes a connecting cylinder and end caps respectively covering two ends of the connecting cylinder, the two end caps are respectively a first end cap and a second end cap, and the air inlet pipe and the air outlet pipe are mounted on the first end cap.

In one embodiment, the air inlet of the air outlet connecting pipe is relatively higher than the outlet of the air inlet pipe along the axial direction of the connecting cylinder.

In one embodiment, the gas-liquid separator further comprises a mounting plate, the mounting plate is provided with a positioning groove, and the second end cover is mounted in the positioning groove.

Compared with the prior art, the gas-liquid separator is provided with the mounting groove and the oil return hole, and the filter is mounted in the mounting groove, so that the filter is very convenient to mount; secondly, the oil return hole is formed in the air outlet connecting pipe, so that the oil return hole formed in the filter can be omitted, the filter is more convenient to process, and the cost is lower; meanwhile, the oil return hole has a throttling function, and the liquid refrigerant and/or lubricating oil filtered by the filter is further atomized under the throttling function of the oil return hole. Therefore, the amount of liquid refrigerant entering the compressor is reduced, and the refrigeration efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a gas-liquid separator provided by the present invention;

Fig. 2 is a schematic structural diagram of the air outlet connecting pipe provided by the present invention;

Fig. 3 is a cross-sectional view of the air outlet connection pipe provided by the present invention;

Fig. 4 is a cross-sectional view of another embodiment of the air outlet connection pipe provided by the present invention.

In the figure, the gas-liquid separator 100, the housing 10, the connecting cylinder 11, the end cover 12, the first end cover 121, the second end cover 122, the air inlet pipe 20, the air outlet pipe 30, the air outlet connecting pipe 40, the air inlet 41, the mounting groove 42, the mounting plane 421, the oil return hole 43, the filter 50, the positioning cylinder 51, the matching surface 511, the convex part 512 and the filter screen 52 are shown.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present 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.

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 in the description of the invention herein 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.

As shown in fig. 1 and 2, the present invention provides a gas-liquid separator 100, wherein the gas-liquid separator 100 is applied to a refrigerator system, installed at the air suction end of a compressor, for separating a gas-liquid mixed refrigerator entering the compressor, and reducing the amount of liquid refrigerant entering the compressor.

Specifically, the gas-liquid separator 100 includes a housing 10, an air inlet pipe 20, an air outlet pipe 30, an air outlet connecting pipe 40 and a filter 50, the air inlet pipe 20 and the air outlet pipe 30 are respectively installed on the housing 10 and are communicated with the inside of the housing 10, the air outlet connecting pipe 40 is installed in the housing 10, one end of the air outlet connecting pipe 40 is connected with the air outlet pipe 30, the other end of the air outlet connecting pipe is an air inlet 41, an installation groove 42 is formed in the outer wall of the air outlet connecting pipe 40, an oil return hole 43 communicated with the inside of the air outlet connecting pipe 40 is formed in the bottom of the installation groove 42, the filter 50 is installed in the installation groove 42, an outlet of the filter 50 is communicated with the oil return hole 43, and the filter 50 is used for filtering mixed refrigerant entering. Here, the mixed refrigerant contains at least liquid refrigerant, lubricant, and impurities, and the filter 50 is used to filter the impurities of the mixed refrigerant entering the casing 10 from the inlet pipe 20.

It can be understood that the mixed refrigerant entering the shell 10 from the inlet pipe 20 is partially atomized, the gaseous refrigerant enters the compressor from the inlet 41 through the outlet pipe 40 and the outlet pipe 30, and the liquid refrigerant, the lubricating oil and the impurities are further atomized under the throttling action of the oil return hole 43 after being filtered by the filter 50. Therefore, the amount of liquid refrigerant entering the compressor is reduced, so that the compressor can compress more gaseous refrigerant in the compression process, and the refrigeration efficiency is improved.

the casing 10 includes a connecting cylinder 11 and end covers 12 respectively covering two ends of the connecting cylinder 11, two of the end covers 12 are a first end cover 121 and a second end cover 122 respectively, and the air inlet pipe 20 and the air outlet pipe 30 are installed on the first end cover 121.

Preferably, the end caps 12 are fixedly and hermetically connected with the connecting cylinder 11.

The intake duct 20 is substantially "L" shaped. The outlet pipe 30 is substantially "I" shaped, and the inlet pipe 20 and the outlet pipe 30 are installed in parallel to each other on the first end cap 121.

The air outlet connection pipe 40 is substantially U-shaped, and the U-shaped opening of the air outlet connection pipe 40 faces the end of the housing 10 on which the air outlet pipe 30 is disposed, that is, the U-shaped opening of the air outlet connection pipe 40 faces the first end cap 121.

Preferably, the air inlet 41 of the air outlet connection tube 40 is relatively higher than the outlet of the air inlet tube 20 along the axial direction of the connected barrel 11. That is, the height of the intake port 41 is relatively higher than the height of the outlet of the intake pipe 20. It will be appreciated that the mixed refrigerant is introduced from the inlet pipe 20, wherein the gaseous refrigerant moves upward in a direction close to the first end cap 121, so that the gaseous refrigerant enters from the inlet 41 and enters the compressor through the outlet pipe 30; the liquid refrigerant, the lubricant and the impurities move toward the direction close to the second end cover 122 under the action of gravity, and then are filtered by the filter 50, further atomized under the action of the oil return hole 43, and then enter the compressor.

In addition, the height of the air inlet 41 is set to be higher than that of the outlet of the air inlet pipe 20, so that the mixed refrigerant coming out of the outlet of the air inlet pipe 20 can be prevented from entering the compressor from the air inlet 41 and affecting the performance of the compressor.

Further, the bottom surface of the mounting groove 42 is a mounting plane 421, and the filter 50 is mounted on the mounting plane 421. It will be appreciated that the installation of the filter 50 may be further facilitated by the installation of the installation plane 421.

Preferably, the mounting groove 42 is formed on the outer wall of the air outlet connection pipe 40 by a punch forming process. Of course, it is understood that the mounting groove 42 may be formed by other processes. Such as a cutting process, a casting process, etc.

Further, the mounting groove 42 is located at one end of the air outlet connecting pipe 40 away from the U-shaped opening thereof.

The cross section of the oil return hole 43 is circular, the aperture of the oil return hole 43 is fixed, the aperture of the oil return hole 43 is smaller than 3.0mm, and the oil return hole 43 has a throttling effect.

In this embodiment, the mounting groove 42 can also be used as a distinguishing mark to distinguish filters with different specifications. And secondly, the oil return hole 43 is formed in the air outlet connecting pipe 40, so that the oil return hole formed in the filter 50 can be omitted, the filter 50 is more convenient to process, and the cost is lower. Meanwhile, the aperture of the oil return hole 43 is fixed, so that the problem that the performance of the system is affected by mistakenly taking/installing different filters with different aperture of the oil return hole can be avoided.

As shown in fig. 3, the filter 50 includes a positioning cylinder 51 and a filter screen 52, one end of the positioning cylinder 51 is mounted on the mounting plane 421 and the oil return hole 43 is accommodated in the positioning cylinder 51, the other end of the positioning cylinder 51 is used for mounting the filter screen 52, and the filter screen 52 is used for filtering impurities in the liquid refrigerant and/or the lubricating oil to prevent the impurities from entering the compressor and damaging the compressor.

Further, an end surface of the positioning cylinder 51 at an end away from the filter screen 52 is a fitting surface 511, the fitting surface 511 is a plane, and the fitting surface 511 and the installation plane 421 are attached to each other. Here, providing the engagement surface 511 as a plane can increase the contact area between the positioning cylinder 51 and the mounting plane 421, so that the filter 50 can be more securely mounted and more conveniently mounted.

Preferably, the positioning cylinder 51 and the air outlet connection tube 40 can be connected by welding, gluing, or the like. In this embodiment, the positioning cylinder 51 and the air outlet connection tube 40 are connected by welding.

Further, as shown in fig. 4, one end of the positioning cylinder 51 away from the filter screen 52 is provided with a protrusion 512, the protrusion 512 protrudes in the radial direction of the positioning cylinder 51, and the protrusion 512 is located on the mounting plane 421, so as to implement the mounting of the positioning cylinder 51. It is understood that, here, the protrusion 512 is provided, which can further increase the contact area between the positioning cylinder 51 and the mounting plane 421, so that the positioning cylinder 51 is more firmly mounted.

As shown in fig. 1, the gas-liquid separator 100 further includes a mounting plate 60, the housing 10 is mounted on the mounting plate 60, and the mounting plate 60 is configured to cooperate with an external member, such as a mounting bracket, to mount the gas-liquid separator 100 thereon.

furthermore, the mounting plate 60 is provided with a positioning groove 61, and the second end cover 122 is mounted in the positioning groove 61, so as to mount the housing 10.

The working principle of the gas-liquid separator is explained below:

The mixed refrigerant enters the shell 10 through the air inlet pipe 20, wherein the liquid refrigerant is partially atomized and enters the compressor together with the gaseous refrigerant from the air inlet 41 of the air outlet connecting pipe 40; wherein, part of the liquid refrigerant, lubricant and impurities fall into the bottom of the shell 10 under the action of gravity and are filtered under the action of the filter 50, the impurities are left in the shell 10, and the liquid refrigerant and the lubricating oil are further atomized through the throttling of the oil return hole 43 and enter the compressor after being filtered.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification 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. the utility model provides a vapour and liquid separator, includes casing, intake pipe, outlet duct, gives vent to anger and takes over and the filter, the intake pipe and the outlet duct install respectively in on the casing, and with the inside intercommunication of casing, give vent to anger take over install in the casing, the one end of taking over of giving vent to anger with the outlet duct is connected, and the other end is the air inlet, its characterized in that, the mounting groove has been seted up on the outer wall of taking over of giving vent to anger, the tank bottom of mounting groove seted up with the oil gallery of taking over inside intercommunication of giving vent to anger, the filter install in the mounting groove.

2. The gas-liquid separator according to claim 1, wherein a bottom surface of the mounting groove is a mounting plane on which the filter is mounted.

3. The gas-liquid separator according to claim 2, wherein the outlet connection pipe is U-shaped, and an opening of the U-shape of the outlet connection pipe faces an end of the housing on which the outlet pipe is provided.

4. The gas-liquid separator according to claim 2, wherein the filter comprises a positioning cylinder and a filter screen, one end of the positioning cylinder is mounted on the mounting plane and the oil return hole is accommodated in the positioning cylinder, and the other end of the positioning cylinder is used for mounting the filter screen.

5. The gas-liquid separator according to claim 4, wherein an end surface of the positioning cylinder at an end thereof remote from the filter screen is a fitting surface, and the fitting surface is a flat surface and is attached to the mounting flat surface.

6. The gas-liquid separator according to claim 5, wherein the positioning cylinder is welded to the gas outlet connection pipe.

7. The gas-liquid separator according to claim 5, wherein an end of the positioning cylinder remote from the filter screen is provided with a protrusion protruding in a radial direction of the positioning cylinder, the protrusion being mounted on the mounting plane.

8. The gas-liquid separator according to claim 1, wherein said housing comprises a connecting cylinder and end caps respectively covering both ends of said connecting cylinder, said two end caps respectively being a first end cap and a second end cap, said inlet pipe and said outlet pipe being mounted on said first end cap.

9. The gas-liquid separator according to claim 8, wherein an inlet port of the outlet connection pipe is relatively higher than an outlet port of the inlet pipe in an axial direction of the connection cylinder.

10. The gas-liquid separator of claim 8, further comprising a mounting plate having a detent slot defined therein, the second end cap being mounted within the detent slot.