CN219774357U - Back lid oil gas separation device of scroll compressor - Google Patents
Back lid oil gas separation device of scroll compressor Download PDFInfo
- Publication number
- CN219774357U CN219774357U CN202320242885.0U CN202320242885U CN219774357U CN 219774357 U CN219774357 U CN 219774357U CN 202320242885 U CN202320242885 U CN 202320242885U CN 219774357 U CN219774357 U CN 219774357U
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- oil
- separation chamber
- scroll compressor
- exhaust
- guide pipe
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- 238000000926 separation method Methods 0.000 title claims abstract description 57
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 8
- 239000003507 refrigerant Substances 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 35
- 230000003068 static effect Effects 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to the technical field of scroll compressors, in particular to a rear cover oil-gas separation device of a scroll compressor. After the oil-gas mixture of the high-pressure exhaust cavity enters the device through the air inlet hole, the oil-gas mixture spirally and downwards rotates at a high speed around the guide pipe, oil drops move to the inner surface of the separation chamber under the action of centrifugal force and slide to the bottom of the separation chamber under the action of gravity, finally the oil drops flow back to the oil storage tank in the rear cover exhaust cavity through the oil return hole, and therefore the purpose of lubricating a kinematic pair is achieved in a machine type internal circulation mode. The refrigerant enters the exhaust channel through the air channel in the middle of the guide pipe, and is discharged through the exhaust hole. The device has the advantages of simple structure, integrated processing and forming and high oil return efficiency.
Description
Technical Field
The utility model relates to the technical field of scroll compressors, in particular to a rear cover oil-gas separation device of a scroll compressor.
Background
During the operation of the scroll compressor, the kinematic pair needs enough lubricating oil to ensure the normal operation of the kinematic pair, but the existence of the lubricating oil is not expected in the refrigeration loop. Therefore, how to ensure that the lubricating oil always circulates in the compressor without entering a refrigeration loop along with the refrigerant so as to improve the reliability and durability of the compressor has great engineering practical significance.
An electric scroll compressor comprises an movable scroll and a fixed scroll which are engaged and screwed through respective scroll parts, wherein the screwing centers of the two scroll parts are high-pressure cavities; one end of the movable vortex disk is arranged at one end of an eccentric shaft through a movable vortex disk bearing, and the eccentric shaft is arranged on a bearing seat through a bearing seat bearing; a static disc seat is arranged on the outer side of the static vortex disc, and an oil gas separation cavity is formed by surrounding the inner wall of the static disc seat and the outer wall of the static vortex disc; the outer wall of the fixed vortex plate is provided with an exhaust port which is respectively communicated with the high-pressure cavity and the oil gas separation cavity, and the fixed vortex plate is provided with an oil return hole which is communicated with an oil storage cavity of the bearing seat; the side wall of the static disc seat is provided with an air outlet pipe part. The electric scroll compressor cannot meet the oil return requirement required by normal operation of the kinematic pair of the scroll compressor and the oil reduction requirement required by a refrigeration loop in the use process, so that the reliability and the durability of the compressor are greatly reduced.
Disclosure of Invention
The utility model solves the technical problems that the contradiction between the oil return requirement required by the normal operation of the kinematic pair of the scroll compressor and the oil-less requirement required by the refrigeration loop can not be regulated.
The utility model provides a rear cover oil-gas separation device of a scroll compressor, which aims to solve the technical problems and comprises a rear cover body, wherein a separation chamber is arranged in the rear cover body, the middle of the bottom of the separation chamber protrudes upwards to form a guide pipe, one end of the guide pipe is communicated with the separation chamber, and the edge of the bottom of the separation chamber is provided with an oil return hole.
Preferably, an exhaust port and an exhaust channel are arranged in the rear cover body, one end of the flow guide pipe is communicated with the separation chamber, the other end of the flow guide pipe is communicated with the exhaust channel, and the exhaust channel is communicated with the exhaust port.
Preferably, the axis of the draft tube is coplanar with the axis of the exhaust passage.
Preferably, the flow guide pipe and the exhaust channel are coaxial, or the axes of the flow guide pipe and the exhaust channel form an included angle of less than 30 degrees.
Preferably, a rear cover exhaust cavity for discharging the oil-gas mixture is arranged in the rear cover body at the side edge of the separation chamber.
Preferably, an air inlet hole is formed in the side edge of the separation chamber, and the air inlet hole is communicated with the rear cover exhaust cavity.
Preferably, an oil storage tank is arranged in the rear cover exhaust cavity, and the oil storage tank is communicated with the oil return hole.
The beneficial effects are that: the utility model provides a rear cover oil-gas separation device of a scroll compressor, which comprises a rear cover body, wherein a separation chamber is arranged in the rear cover body, a flow guide pipe is formed by protruding upwards from the middle of the bottom of the separation chamber, one end of the flow guide pipe is communicated with the separation chamber, and an oil return hole is formed at the edge of the bottom of the separation chamber. After the oil-gas mixture of the high-pressure exhaust cavity enters the device through the air inlet hole, the oil-gas mixture spirally and downwards rotates at a high speed around the guide pipe, oil drops move to the inner surface of the separation chamber under the action of centrifugal force and slide to the bottom of the separation chamber under the action of gravity, finally the oil drops flow back to the oil storage tank in the rear cover exhaust cavity through the oil return hole, and therefore the purpose of lubricating a kinematic pair is achieved in a machine type internal circulation mode. The refrigerant enters the exhaust channel through the air channel in the middle of the guide pipe, and is discharged through the exhaust hole. The device has the advantages of simple structure, integrated processing and forming and high oil return efficiency.
The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic cross-sectional view of a back cover oil-gas separator of a scroll compressor according to the present utility model;
fig. 2 is a schematic top view of a rear cover oil-gas separator of a scroll compressor according to the present utility model.
Reference numerals illustrate: 1. an exhaust port; 2. an exhaust passage; 3. a flow guiding pipe; 4. a separation chamber; 5. a rear cover exhaust cavity; 6. an air inlet hole; 7. an oil return hole; 8. an oil storage tank.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-2, the utility model provides an oil-gas separation device of a scroll compressor, which comprises a separation chamber 4 arranged in a rear cover body, wherein an exhaust port 1 and an exhaust channel 2 of the compressor are also arranged in the rear cover body, the separation chamber 4 is provided with a flow guide pipe 3 in the middle of the separation chamber 4, and the flow guide pipe 3 is communicated with the exhaust channel 2. An air inlet hole 6 and an oil return hole 7 are arranged between the side edge of the separation chamber 3 and the rear cover exhaust cavity.
Specifically, the rear cover body is internally provided with a separation chamber 4, the bottom of the separation chamber 4 protrudes upwards to form a guide pipe 3, one end of the guide pipe 3 is communicated with the separation chamber, the other end of the guide pipe is communicated with an exhaust passage 2, and the exhaust passage 2 is communicated with an exhaust port 1. The bottom edge of the separation chamber 4 is provided with an oil return hole 7. The oil return hole 7 is located beside the guide pipe and is close to the inner wall, so that oil-gas separation can be facilitated, and the specific working principle is described in detail below.
Wherein, the honeycomb duct 3 is convexly arranged in the separation chamber 4, and the two cylindrical bodies form two annular cylinders to form a cavity for oil-gas separation. The oil return hole 7 is located between the two annular cylinders and at the bottom of the separation chamber 4.
As shown in fig. 1-2, after the oil-gas mixture in the rear cover exhaust cavity 5 enters the device through the air inlet hole 6, the oil-gas mixture spirally and downwards rotates at a high speed around the flow guide pipe 3, oil drops move to the inner surface of the separation chamber 4 under the action of centrifugal force and slide to the bottom of the separation chamber 4 under the action of gravity, and finally flow back to the oil storage tank 8 in the rear cover exhaust cavity through the oil return hole 7, so that the oil circulates in the scroll compressor, and the purpose of lubricating the dynamic disc and the static disc is achieved. The refrigerant enters the exhaust channel 2 through the air passage in the middle of the guide pipe 3, and is discharged through the exhaust hole 1. The discharge is mainly refrigerant.
Preferably, the axis of the flow guiding pipe 3 is coplanar with the axis of the exhaust passage 2. The flow guide pipe 3 and the exhaust channel 2 can be coaxial, or the axes of the flow guide pipe and the exhaust channel 2 form an included angle of less than 30 degrees, namely, a certain angle can be formed with the axis of the exhaust channel 2 according to the arrangement requirement of the exhaust holes. And the exhaust is convenient.
In the preferred scheme, a rear cover exhaust cavity 5 for discharging the oil-gas mixture is arranged on the side edge of the separation chamber 4 in the rear cover body, an air inlet hole 6 is arranged on the oil-gas separation cavity, and the air inlet hole 6 is communicated with the rear cover exhaust cavity 5. Specifically, the air intake 6 is located at the side of the separation chamber 4.
In the preferred scheme, an oil storage tank 8 is arranged in the rear cover exhaust cavity 5, and the oil storage tank 8 is communicated with the oil return hole 7.
Working principle:
after the oil-gas mixture of the rear cover exhaust cavity 5 enters the separation chamber 4 through the air inlet hole 6, the oil-gas mixture rotates downwards at a high speed in a spiral mode around the flow guide pipe 3, oil drops move to the inner surface of the separation chamber 4 under the action of centrifugal force and slide to the bottom edge of the separation chamber 4 under the action of gravity, and finally flow back to the oil storage tank 8 in the rear cover exhaust cavity 5 through the oil return hole 7 at the bottom edge of the separation chamber 4. Thereby the purpose of lubricating the dynamic and static disc is achieved by internal circulation of the machine type. The refrigerant enters the exhaust channel 2 through the air passage in the middle of the guide pipe 3, and is discharged through the exhaust hole 1. The integral structure is simple, the integral processing and forming are carried out, and the oil return efficiency is high.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.
Claims (7)
1. The utility model provides a back lid oil gas separation device of scroll compressor, includes back lid body, its characterized in that, including setting up the separation chamber in back lid body, upwards protruding formation honeycomb duct in the middle of the bottom of separation chamber, honeycomb duct one end and separation chamber intercommunication, the bottom border of separation chamber is equipped with the oil return hole.
2. The oil-gas separator of the back cover of the scroll compressor according to claim 1, wherein the back cover body is provided with an exhaust port and an exhaust passage, one end of the flow guide pipe is communicated with the separation chamber, the other end is communicated with the exhaust passage, and the exhaust passage is communicated with the exhaust port.
3. The back cover oil and gas separator of a scroll compressor of claim 2, wherein an axis of the draft tube is coplanar with an axis of the discharge passage.
4. A back cover oil and gas separator for a scroll compressor according to claim 3, wherein the flow guide pipe is coaxial with the exhaust passage or the axes of the flow guide pipe and the exhaust passage form an included angle of 30 degrees or less.
5. The back cover oil-gas separation device of the scroll compressor according to claim 1, wherein a back cover exhaust cavity for exhausting the oil-gas mixture is arranged at the side edge of the separation chamber in the back cover body.
6. The back cover oil-gas separation device of the scroll compressor according to claim 5, wherein an air inlet hole is provided at a side of the separation chamber, and the air inlet hole is communicated with the back cover exhaust chamber.
7. The oil-gas separation device of a rear cover of a scroll compressor according to claim 5, wherein an oil storage tank is provided in the rear cover discharge chamber, and the oil storage tank is communicated with the oil return hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320242885.0U CN219774357U (en) | 2023-02-17 | 2023-02-17 | Back lid oil gas separation device of scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320242885.0U CN219774357U (en) | 2023-02-17 | 2023-02-17 | Back lid oil gas separation device of scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774357U true CN219774357U (en) | 2023-09-29 |
Family
ID=88109941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320242885.0U Active CN219774357U (en) | 2023-02-17 | 2023-02-17 | Back lid oil gas separation device of scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774357U (en) |
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2023
- 2023-02-17 CN CN202320242885.0U patent/CN219774357U/en active Active
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