CN111810407A - Oil-gas separation structure of compressor, compressor and air conditioner - Google Patents
Oil-gas separation structure of compressor, compressor and air conditioner Download PDFInfo
- Publication number
- CN111810407A CN111810407A CN202010797228.3A CN202010797228A CN111810407A CN 111810407 A CN111810407 A CN 111810407A CN 202010797228 A CN202010797228 A CN 202010797228A CN 111810407 A CN111810407 A CN 111810407A
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- China
- Prior art keywords
- oil
- compressor
- gas
- separation structure
- gas separation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0253—Details concerning the base
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
Abstract
The invention discloses an oil-gas separation structure of a compressor, the compressor and an air conditioner, comprising: the oil-gas separator is arranged in the exhaust cavity of the compressor and connected with the exhaust hole of the compressor to extend the gas path to form a plurality of oil paths. The oil-gas separation structure is arranged in the exhaust cavity of the compressor, so that the exhaust gas path can be prolonged to form a plurality of oil paths, and when the refrigerant entering the exhaust cavity from the inlet on the side surface of the exhaust cavity flows along the gas path, the lubricating oil mixed in the refrigerant flows back downwards along the oil paths on the oil-gas separator after contacting the oil-gas separator and then separating from the refrigerant, thereby reducing the oil content of the exhaust gas of the compressor, improving the refrigerating capacity and reducing the power consumption.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to an oil-gas separation structure of a compressor, the compressor and an air conditioner.
Background
With the rapid development of new energy vehicles, air conditioning scroll compressors for electric vehicles are emerging. The automobile air conditioner scroll compressor has higher requirement on the oil content of discharged high-pressure gas, and too much oil is taken away by discharged gas, so that the refrigeration efficiency can be influenced, and more serious accidents caused by excessive abrasion of the compressor caused by insufficient oil quantity of a compressor circulating oil way can be caused, so that the oil-gas separation rule of the electric automobile scroll compressor is searched, and the separator is optimized to become urgent.
Disclosure of Invention
The invention provides an oil-gas separation structure of a compressor, the compressor and an air conditioner, and aims to solve the technical problem that oil content of exhausted gas of the compressor is high in the prior art.
The technical scheme adopted by the invention is as follows:
the invention provides an oil-gas separation structure of a compressor, which comprises: the oil-gas separator is arranged in the exhaust cavity of the compressor and connected with the exhaust hole of the compressor to extend the gas path to form a plurality of oil paths.
Preferably, the oil separator has a tubular shape including: the vertical portion that the air intake direction of perpendicular exhaust chamber set up, the connecting portion of vertical portion are connected to one end, connect the exhaust hole and the vertical portion of second of the connecting portion other end. The top of vertical portion is the air inlet, connecting portion connect the bottom in vertical portion and the vertical portion of second. The connecting portion transversely sets up, just the bottom of connecting portion is equipped with down the oilhole.
In one implementation, the diameter of the air inlet of the vertical portion is greater than or equal to the diameter of the lower oil hole.
In another implementation, the lower oil hole is provided with a plurality of micro-porous structures.
The invention also provides a compressor, which comprises a shell, a front cover arranged at one end of the shell and an oil-gas separation structure arranged in the front cover, wherein an exhaust cavity is arranged in the front cover.
The compressor is still including locating the inside motor element of casing, establishes the support that forms the backpressure chamber on the bent axle through bent axle, the cover that motor element drove, through bent axle driven driving disk, forms the quiet dish in compression chamber with the cooperation of driving disk. The bottom of the static disc is provided with an oil return channel for communicating the exhaust cavity with the back pressure cavity, and the oil return channel is provided with a filter screen.
The invention also provides an air conditioner which comprises the compressor.
Compared with the prior art, the invention has the advantages that the oil-gas separation structure is arranged in the exhaust cavity of the compressor, the exhaust gas path can be prolonged to form a plurality of oil paths, and when the refrigerant entering the exhaust cavity from the inlet on the side surface of the exhaust cavity flows along the gas path, the lubricating oil mixed in the refrigerant flows back downwards along the oil path on the oil-gas separator after contacting the oil-gas separator and then separating from the refrigerant, so that the oil content of the exhaust gas of the compressor is reduced, the refrigerating capacity is improved and the power consumption is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in 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 invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural diagram in an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a front cover according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of an oil separator in an embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 2 and 3, the present invention provides an oil-gas separation structure of a compressor, including: the oil-gas separator 19 is arranged in the exhaust cavity 09 of the compressor, one end of the oil-gas separator 19 is an air outlet end, the other end of the oil-gas separator 19 is an air inlet end, the air outlet end is connected with the exhaust hole 07 of the exhaust cavity 09 of the compressor, the exhaust air passage 17 can be prolonged to form a plurality of oil passages 18, when a refrigerant entering the exhaust cavity 09 from an inlet on the side surface of the exhaust cavity 09 flows along the air passages, lubricating oil mixed in the refrigerant is separated from the refrigerant after contacting the oil-gas separator and then flows back downwards along the oil passages 18 on the oil-gas separator, and therefore the oil content of the exhaust air of the compressor is reduced.
As shown in fig. 4, in a specific embodiment, the gas-oil separator 19 is tubular, and specifically includes: an upright portion 1903, a connecting portion 1904 and a second upright portion 1905, the top of the upright portion 1903 being an air inlet 1902, i.e., an air inlet end, the connecting portion 1904 connecting the upright portion 1903 and the second upright portion 1905 and being located at the bottom of the upright portion 1903 perpendicular to the upright portion 1903 and the second upright portion 1905, so that the air-oil separator 19 is U-shaped, while the bottom of the connecting portion 1904 is provided with a lower oil hole 1901. The bottom of the second upright portion 1905 is connected to the connecting portion 1904, and the top is connected to the discharge hole 07, i.e., the discharge end, of the discharge chamber 09 of the compressor. The vertical portion 1903 is perpendicular to the air inlet direction of the inlet on the side of the exhaust cavity 09, the height of the air inlet 1902 at the top of the vertical portion 1903 is larger than the air inlet height on the side of the exhaust cavity 09, the oil-gas mixture entering the exhaust cavity 09 from the inlet on the side of the compressor exhaust cavity 09 flows in a spiral direction around the vertical portion 1903 and the second vertical portion 1905, the strong centrifugal force enables liquid particles in the mixture to be thrown off and gathered on the outer walls of the vertical portion 1903 and the second vertical portion 1905, and finally falls into the bottom of the front cover 06, namely, the outer walls of the vertical portion 1903 and the second vertical portion 1905 respectively form an oil path 18 which flows back downwards, and primary separation of oil and gas is performed here. The air flow with low oil content and clean after primary separation enters the oil-gas separator 19 from the air inlet 1902 of the vertical portion along the air path shown in fig. 2, in the process of discharging along the air path 17, part of liquid particles still carried in the air flow are separated from the air due to high density, the liquid particles flow downwards to the bottom of the oil-gas separator 19 along the inner wall of the vertical portion 1903, namely, the connecting portion, flow out of the oil-gas separator 19 from the lower oil hole 1901 of the connecting portion, and flow into the bottom of the front cover 06, so that a third oil path 18 is formed from the inner wall of the vertical portion 1903 to the lower oil hole 1901, and further separation of oil and gas is performed here. And the oil is discharged from the exhaust hole through the second vertical part, because the density of the oil is higher and the density of the gas is lower, oil drops fall on the inner wall of the second vertical part under the action of gravity in the process of upward flowing of the oil gas, and flow back through the lower oil hole to form a fourth oil path 18, so that third-time oil separation is realized.
The air inlet 1902 of the vertical portion has a diameter D1, the lower oil hole 1901 of the connecting portion has a diameter D2, and in order to ensure that excessive gas does not flow out from the lower oil hole 1901, the design is generally that D2 is not more than D1. The material of the oil-gas separator 19 is generally selected from aluminum, iron, alloy or other materials, and the matching mode between the oil-gas separator 19 and the front cover 06 is cold-pressing assembly or hot-sleeve assembly. The shape of the oil separator 19 is not limited to the "U" shape, and may be other shapes. Further, the structure can be integrally formed during processing.
In another implementation, the lower oil holes 1901 may further have a plurality of micro-porous structures, and the sum of the areas of the plurality of lower oil holes is smaller than or equal to the area of the air inlet 1902, so as to reduce the aperture of a single lower oil hole and reduce the flow rate of oil.
As shown in fig. 2, the present invention further provides a compressor, in particular a scroll compressor, including: the motor comprises a shell 02, a front cover 06, a motor assembly 15, a crankshaft 16, a bracket 03, a movable disc 04 and a fixed disc 05. The side wall of the right end of the shell 02 is provided with an air suction port 01, and the cavity inside the right end is an air suction cavity 14. The left end at casing 02 is installed to the protecgulum 06, seals the left end of casing 02 and forms exhaust chamber 09 in the protecgulum 06, and motor element 15, bent axle 16, support 03, movable disk 04 and quiet dish 05 all set up inside casing 02, and motor element 15 is close to the right-hand member setting of casing 02. The crankshaft 16 is located at the axis of the shell 02, passes through the motor assembly 15, is driven by the motor assembly 15, and extends towards the left end of the shell 02, and the bracket 03 is sleeved on the crankshaft 16. The movable disc 04 is driven by the crankshaft 16 and supported by the bracket 03 to form a back pressure cavity 13 in the bracket 03, the static disc 05 is installed at the left end of the shell 02 and matched with the movable disc 04 to form a compression cavity, and the movable disc 04 compresses gas entering from the air suction port 01 in the process of being driven to rotate by the crankshaft.
The bottom of the static disc 05 is provided with an oil return channel 12 for communicating the exhaust cavity 09 with the back pressure cavity 13, and an inlet of the oil return channel 12 is provided with a filter screen 11. The frozen oil separated by the oil-gas separator 19 is filtered by the filter screen 11, and then is pushed by pressure to flow back from the oil return channel 12 of the static disc 05 to the back pressure cavity 13 formed by the movable disc 04 and the bracket 03, so that the circulating oil way is used for lubricating the moving parts in a circulating manner.
The invention also provides an air conditioner using the scroll compressor.
The invention further provides an automobile which comprises the air conditioner, particularly an electric automobile, and the scroll compressor is used in an air conditioning system of the automobile. The oil-spraying rate of the compressor can be reduced, lubricating oil in a pipeline in the micro-channel heat exchanger is reduced, the heat exchange effect of the heat exchanger is improved, the refrigeration energy efficiency of the air conditioning system is improved, and therefore the endurance mileage of the whole vehicle is guaranteed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An oil-gas separation structure of a compressor, comprising: the oil-gas separator is arranged in the exhaust cavity of the compressor and connected with the exhaust hole of the compressor to extend the gas path to form a plurality of oil paths.
2. The oil-gas separation structure of a compressor according to claim 1, wherein the oil-gas separator has a tubular shape, comprising: the vertical portion that the air intake direction of perpendicular exhaust chamber set up, the connecting portion of vertical portion are connected to one end, connect the exhaust hole and the vertical portion of second of the connecting portion other end.
3. The oil-gas separation structure of a compressor according to claim 2, wherein the top of the vertical portion is an air inlet, and the connection portion is connected to the bottom of the vertical portion and the second vertical portion.
4. The oil-gas separation structure of a compressor according to claim 3, wherein the connecting portion is transversely disposed, and a bottom of the connecting portion is provided with a drain hole.
5. The oil-gas separation structure of a compressor according to claim 4, wherein a diameter of the gas inlet of the vertical portion is greater than or equal to a diameter of the lower oil hole.
6. The oil-gas separation structure of a compressor according to claim 4, wherein a plurality of the oil drain holes are formed in a microporous structure.
7. A compressor comprising a housing, a front cover mounted at one end of the housing, a discharge chamber being provided in the front cover, characterized by further comprising the oil-gas separation structure of any one of claims 1 to 6.
8. The compressor of claim 7, further comprising a motor assembly disposed within the housing, a crankshaft driven by the motor assembly, a bracket disposed on the crankshaft to define a back pressure chamber, a movable plate driven by the crankshaft, and a stationary plate cooperating with the movable plate to define a compression chamber.
9. The compressor as claimed in claim 8, wherein the bottom of the static disc is provided with an oil return passage for communicating the exhaust chamber with the back pressure chamber, and the oil return passage is provided with a filter screen.
10. An air conditioner characterized by comprising the compressor of any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797228.3A CN111810407A (en) | 2020-08-10 | 2020-08-10 | Oil-gas separation structure of compressor, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797228.3A CN111810407A (en) | 2020-08-10 | 2020-08-10 | Oil-gas separation structure of compressor, compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111810407A true CN111810407A (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010797228.3A Pending CN111810407A (en) | 2020-08-10 | 2020-08-10 | Oil-gas separation structure of compressor, compressor and air conditioner |
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| Country | Link |
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| CN (1) | CN111810407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324665A (en) * | 2020-11-06 | 2021-02-05 | 深圳市正和仲泰精密五金有限公司 | Oil return structure is concentrated to vortex formula refrigeration compressor |
-
2020
- 2020-08-10 CN CN202010797228.3A patent/CN111810407A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324665A (en) * | 2020-11-06 | 2021-02-05 | 深圳市正和仲泰精密五金有限公司 | Oil return structure is concentrated to vortex formula refrigeration compressor |
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