CN109139428B - Oil-gas separator and compressor with same - Google Patents
Oil-gas separator and compressor with same Download PDFInfo
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- CN109139428B CN109139428B CN201810903330.XA CN201810903330A CN109139428B CN 109139428 B CN109139428 B CN 109139428B CN 201810903330 A CN201810903330 A CN 201810903330A CN 109139428 B CN109139428 B CN 109139428B
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- filter screen
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- outer cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses an oil-gas separator and a compressor with the oil-gas separator, wherein the oil-gas separator comprises an outer cylinder and an inner cylinder which are sleeved together, the upper part of the outer cylinder is provided with an exhaust inlet, the inner cylinder comprises an upper cylinder and a lower cylinder which are connected together up and down, the outer cylinder and the upper cylinder are both air-impermeable plates, the lower cylinder is of a filter screen type structure, the upper parts of the outer cylinder and the upper cylinder are provided with annular sealing plates, the outer cylinder and the upper cylinder are both connected with the annular sealing plates in a sealing manner, an annular cavity for air flow to pass through is arranged between the outer cylinder and the upper cylinder, the inner cylinder is internally provided with a gas discharge channel, the lower part of the outer cylinder is provided with an oil return plate, the oil return plate is provided with an oil return hole, and. The upper cylinder body of the centrifugal oil-gas separator is used for centrifugal oil-gas separation, and the separation effect is good when the airflow velocity is high; the lower cylinder body is provided with a filter screen type oil gas separation device, and the separation effect is good when the airflow velocity is small. Two-stage separation is adopted, so that the device is suitable for various airflow velocities, and has wide separation range and high efficiency.
Description
Technical Field
The invention relates to an oil-gas separator and a compressor with the oil-gas separator, and belongs to the technical field of compressors.
Background
When the compressor works, the oil used for lubricating can be discharged out of the compressor with a certain oil content along with the refrigerant. When the oil return of the air conditioning system is poor, the compressor can have poor lubrication, and the heat exchange efficiency of the system is low. Therefore, it is very important to reduce the oil content in the compressor discharge, i.e. before the gaseous refrigerant is discharged out of the compressor, oil-gas separation is required, so as to reduce the loss of the lubricating oil in the compressor as much as possible. In the prior art, a wire mesh type filter is adopted for oil-gas separation in a compressor, and the wire mesh type filter has the characteristic of simple structure, can filter impurities and prevent the impurities from entering an air conditioning system to cause air conditioning faults. However, at higher gas flow rates, the efficiency of oil-gas separation is lower.
The prior art also adopts a centrifugal separator to separate oil and gas, and the centrifugal separator has good separation effect when the airflow velocity is higher, has poor separation effect when the airflow velocity is lower, can not filter possibly generated impurities, and has the defects of larger volume and high cost.
Disclosure of Invention
The invention aims to provide an oil-gas separator which has an oil-gas separation effect not affected by the flow velocity of airflow and can filter impurities. Meanwhile, the invention also provides a compressor with the oil-gas separator.
The oil-gas separator adopts the following technical scheme: oil and gas separator, establish outer barrel and interior barrel together including the cover, outer barrel upper portion is equipped with the exhaust import, and interior barrel includes upper barrel and lower barrel that links together from top to bottom, and outer barrel and upper barrel are the air-impermeable plate, and lower barrel is the filter screen formula structure, and the upper portion of outer barrel and upper barrel is equipped with the annular seal board, and outer barrel and upper barrel all with annular seal board sealing connection, have the annular cavity that the air feed stream passes through between outer barrel and the upper barrel, the inside of interior barrel is gas escape way, outer barrel lower part is equipped with back oil plate, is equipped with the oil gallery on the back oil plate, and the bottom of outer barrel and lower barrel all is connected on back oil plate.
The lower cylinder comprises a flaky annular filter screen and an inner filter screen and an outer filter screen which are sleeved together, the inner filter screen and the outer filter screen are of cylindrical structures, the annular filter screen is fixedly connected to the upper portions of the inner filter screen and the outer filter screen, the inner filter screen and the outer filter screen are respectively connected to the inner edge and the outer edge of the annular filter screen, and the bottoms of the inner filter screen and the outer filter screen are fixed on the oil return plate.
The inner wall of the outer cylinder body is provided with strip-shaped grid plates at intervals, and the strip-shaped grid plates extend along the axial direction of the outer cylinder body.
The air inlet is arranged on the tangential direction of the outer cylinder body.
The outer barrel is the structure that shrinks gradually from top to bottom, it is the structure that enlarges gradually from top to bottom to go up the barrel.
The compressor with the oil-gas separator adopts the following technical scheme: the compressor with the oil-gas separator comprises a compressor body, wherein an exhaust cavity is arranged on the compressor body, an exhaust port is arranged on the exhaust cavity, the oil-gas separator is arranged in the exhaust cavity, the oil-gas separator comprises an outer cylinder and an inner cylinder which are sleeved together, the upper part of the outer cylinder is provided with an exhaust inlet, the inner cylinder comprises an upper cylinder and a lower cylinder which are connected together from top to bottom, the outer cylinder and the upper cylinder are both air-impermeable plates, the lower cylinder is of a filter screen type structure, the upper parts of the outer cylinder and the upper cylinder are provided with annular sealing plates, the outer cylinder and the upper cylinder are both connected with the annular sealing plates in a sealing way, an annular cavity for air flow to pass through is arranged between the outer cylinder and the upper cylinder, and a gas exhaust channel is arranged inside the inner cylinder, the gas exhaust passage is communicated with the exhaust port, an oil return plate is arranged on the lower portion of the outer cylinder, an oil return hole is formed in the oil return plate, and the bottoms of the outer cylinder and the lower cylinder are connected to the oil return plate.
The lower cylinder comprises a flaky annular filter screen and an inner filter screen and an outer filter screen which are sleeved together, the inner filter screen and the outer filter screen are of cylindrical structures, the annular filter screen is fixedly connected to the upper portions of the inner filter screen and the outer filter screen, the inner filter screen and the outer filter screen are respectively connected to the inner edge and the outer edge of the annular filter screen, and the bottoms of the inner filter screen and the outer filter screen are fixed on the oil return plate.
The inner wall of the outer cylinder body is provided with strip-shaped grid plates at intervals, and the strip-shaped grid plates extend along the axial direction of the outer cylinder body.
The exhaust inlet is arranged on the tangential direction of the outer cylinder body.
The outer barrel is the structure that shrinks gradually from top to bottom, it is the structure that enlarges gradually from top to bottom to go up the barrel.
The invention has the beneficial effects that: when the oil-gas separator is used, oil gas firstly enters the annular cavity between the outer cylinder and the upper cylinder from the exhaust inlet, the oil gas spirally moves in the annular cavity, heavy lubricating oil drops in airflow are separated out, the oil drops fall into the oil return plate downwards under the action of gravity, the oil gas continuously moves downwards to enter the lower cylinder of the filter screen type structure, impurities and residual lubricating oil in the oil gas are separated out under the filtering action of the filter screen type lower cylinder, the separated oil drops return to the compressor through the oil return hole in the oil return plate, and the separated gas is discharged from the gas discharge channel in the inner cylinder and finally discharged to the outside of the compressor through the exhaust port. The upper cylinder body of the invention is used for centrifugally separating oil and gas, and the oil-gas separation effect is good when the airflow velocity is high; the lower cylinder body is provided with a filter screen type oil-gas separation device, and the oil-gas separation effect is good when the airflow velocity is small. Therefore, the invention adopts two-stage separation, is suitable for separating airflow with various flow velocities, widens the separation range and greatly improves the separation efficiency.
Preferably, the lower cylinder body adopts the structure of the cylindrical inner filter screen and the cylindrical outer filter screen, so that oil gas can be subjected to multi-layer filtration, the oil gas separation is more thorough, and the oil gas separation efficiency is improved.
Preferably, the grid plate is arranged on the outer cylinder body, so that the effects of buffering and blocking air flow can be achieved, and the oil-gas separation effect is enhanced; in addition, the formed oil drops can be guided to the oil return and oil discharge hole at the lower part so as to be prevented from being carried out by the air flow for the second time.
Preferably, the exhaust inlet is arranged on the tangential direction of the outer cylinder body, so that oil gas can spirally move in the annular cavity.
Preferably, the inner and outer inclined planes of the outer cylinder and the upper cylinder can form a conical air flow through cavity, so that air flow forms turbulent flow, and the separation effect is increased under multiple circulation.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an oil-gas separator of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic structural view of an embodiment of the compressor with an oil separator of the present invention.
In the figure, 1-outer cylinder, 11-exhaust inlet, 2-upper cylinder, 3-lower cylinder, 31-annular filter screen, 32-inner filter screen, 33-outer filter screen, 4-annular sealing plate, 5-oil return plate, 51-oil return hole, 6-strip grid plate, 7-oil-gas separator, 8-compressor body, 81-exhaust cavity and 82-exhaust port.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
The structure of an embodiment of the oil-gas separator is shown in fig. 1-2, the oil-gas separator of the embodiment comprises an outer cylinder body 1 and an inner cylinder body which are sleeved together, an exhaust inlet 11 is arranged at the upper part of the outer cylinder body 1, and the exhaust inlet 11 is arranged on the tangential direction of the outer cylinder body 1. Interior barrel is including the last barrel 2 and lower barrel 3 that link together from top to bottom, and outer barrel 1 and last barrel 2 are the gas impermeable plate, and lower barrel 3 is the filter screen formula structure, and outer barrel 1 and the upper portion of last barrel 2 are equipped with annular seal plate 4, and outer barrel 1 and last barrel 2 all with annular seal plate 4 sealing connection, have the annular cavity that the air feed stream passes through between outer barrel 1 and the last barrel 2, and the inside of interior barrel is gas escape way, outer barrel 1 lower part is equipped with oil return plate 5, is equipped with oil gallery 51 on the oil return plate 5, and outer barrel 1 and the bottom of lower barrel 3 all connect on oil return plate 5.
The lower cylinder 3 in this embodiment includes a sheet-shaped annular filter screen 31, and an inner filter screen 32 and an outer filter screen 33 which are sleeved together, the inner filter screen 32 and the outer filter screen 33 are both of a cylindrical structure, the annular filter screen 31 is fixedly connected to the upper portions of the inner filter screen 32 and the outer filter screen 33, the inner filter screen 32 and the outer filter screen 33 are respectively connected to the inner edge and the outer edge of the annular filter screen 31, and the bottoms of the inner filter screen 32 and the outer filter screen 33 are both fixed on the oil return plate 5.
The inner wall of the outer cylinder body 1 is provided with strip-shaped grid plates 6 at intervals, and the strip-shaped grid plates 6 extend along the axial direction of the outer cylinder body 1. Outer barrel 1 is the structure that shrinks gradually from top to bottom, go up barrel 2 and be the structure that enlarges gradually from top to bottom, the cavity between outer barrel and the last barrel is the toper structure that shrinks gradually downwards.
When the oil-gas separator is used, oil gas enters the annular cavity between the outer barrel and the upper barrel through the exhaust inlet, the exhaust inlet is arranged on the tangent of the outer barrel and is favorable for the oil gas to perform spiral motion in the annular cavity, the oil gas performs spiral motion in the annular cavity, heavy lubricating oil drops in air flow are separated, the oil drops fall into the oil return plate downwards under the action of gravity, the inner inclined plane and the outer inclined plane of the outer barrel and the upper barrel form a tapered air flow through cavity, the turbulent flow is favorably formed by the air flow, and the separation effect is increased under multiple circulation. The oil gas continues to move downwards to enter the lower cylinder body of the filter screen type structure, impurities and residual lubricating oil in the oil gas are separated out under the filtering action of the filter screen type lower cylinder body, separated oil drops return to the compressor through oil return holes in the oil return plate, and separated gas is discharged from a gas discharge channel in the inner cylinder body and finally discharged to the outside of the compressor through an exhaust port. The lower cylinder body adopts the cylindrical structure of the inner filter screen and the outer filter screen, so that oil gas can be subjected to multi-layer filtration, the oil gas separation is more thorough, and the oil gas separation efficiency is improved. The strip-shaped grid plate on the outer cylinder body can buffer and block airflow, so that the oil-gas separation effect is enhanced; in addition, the long strip-shaped grid plate can guide formed oil drops to the oil return and oil discharge hole at the lower part so as to prevent the oil drops from being brought out by air flow for the second time.
Because the upper cylinder body of the oil-gas separator is provided with the centrifugal oil-gas separation device, the oil-gas separation effect is good when the airflow velocity is high; the lower cylinder body is provided with a filter screen type oil-gas separation device, and the oil-gas separation effect is good when the airflow velocity is small. Therefore, the invention adopts two-stage separation, is suitable for separating airflow with various flow velocities, widens the separation range and greatly improves the separation efficiency.
The structure of the embodiment of the compressor with the oil-gas separator is shown in fig. 3, the embodiment of the compressor with the oil-gas separator comprises a compressor body 8, an exhaust cavity 81 is arranged on the compressor body 8, an exhaust port 82 is arranged on the exhaust cavity 81, the oil-gas separator 7 is arranged in the exhaust cavity 81, and the structure of the oil-gas separator 7 is shown in fig. 1 and 2, which is the same as the structure of the embodiment of the oil-gas separator of the invention, and is not described again here.
The above embodiment is a preferred embodiment of the present invention, and in other embodiments of the present invention, the lower cylinder may also adopt a single-layer or multi-layer screen structure; the long strip-shaped grid plate on the inner wall of the outer cylinder body can be flexibly selected according to the requirement.
Although the embodiments of the present invention have been described above in detail, the present invention is not limited to the above-described embodiments. The scope of the invention defined by the appended claims encompasses all equivalent substitutions and modifications.
Claims (6)
1. Oil and gas separator, its characterized in that: the air purifier comprises an outer barrel body (1) and an inner barrel body which are sleeved together, wherein an exhaust inlet (11) is arranged at the upper part of the outer barrel body (1), the inner barrel body comprises an upper barrel body (2) and a lower barrel body (3) which are connected together from top to bottom, the outer barrel body (1) and the upper barrel body (2) are both air-impermeable plates, the lower barrel body (3) is of a net-type filtering structure, annular sealing plates (4) are arranged at the upper parts of the outer barrel body (1) and the upper barrel body (2), the outer barrel body (1) and the upper barrel body (2) are both in sealing connection with the annular sealing plates (4), an annular cavity for air flow to pass through is arranged between the outer barrel body (1) and the upper barrel body (2), a gas discharge channel is arranged inside the inner barrel body, an oil return plate (5) is arranged at the lower part of the outer barrel body (1), an oil return hole (51) is arranged on the oil return plate (5, barrel (3) are established interior filter screen (32) and outer filter screen (33) including slice annular filter screen (31) and cover down together, and interior filter screen (32) and outer filter screen (33) are tubular structure, and annular filter screen (31) fixed connection is on the upper portion of interior filter screen (32) and outer filter screen (33), and interior filter screen (32) and outer filter screen (33) are connected respectively on the inner edge and the outer fringe of annular filter screen (31), and the bottom of interior filter screen (32) and outer filter screen (33) is all fixed on returning oil board (5), the bottom of going up barrel (2) is connected on annular filter screen (31), outer barrel (1) is the structure that contracts gradually from top to bottom, it is the structure that enlarges gradually from top to bottom to going up barrel (2).
2. Oil separator according to claim 1, characterized in that: the inner wall of the outer cylinder body (1) is provided with strip-shaped grid plates (6) at intervals, and the strip-shaped grid plates (6) extend along the axial direction of the outer cylinder body (1).
3. Oil separator according to claim 1, characterized in that: the exhaust inlet (11) is arranged on the tangent direction of the outer cylinder body (1).
4. Compressor with oil and gas separator, including compressor body (8), be equipped with exhaust chamber (81) on compressor body (8), be equipped with gas vent (82) on exhaust chamber (81), be equipped with oil and gas separator (7), its characterized in that in exhaust chamber (81): the oil-gas separator (7) comprises an outer cylinder body (1) and an inner cylinder body which are sleeved together, the upper part of the outer cylinder body (1) is provided with an exhaust inlet (11), the inner cylinder body comprises an upper cylinder body (2) and a lower cylinder body (3) which are connected together from top to bottom, the outer cylinder body (1) and the upper cylinder body (2) are both air-impermeable plates, the lower cylinder body (3) is of a filter screen type structure, the upper parts of the outer cylinder body (1) and the upper cylinder body (2) are provided with annular sealing plates (4), the outer cylinder body (1) and the upper cylinder body (2) are both in sealing connection with the annular sealing plates (4), an annular cavity for air flow to pass through is arranged between the outer cylinder body (1) and the upper cylinder body (2), the inner cylinder body is internally provided with an air discharge passage which is communicated with an exhaust port, the lower part of the outer cylinder body (1) is provided with an oil return plate (5), the oil return hole (51) is arranged on the oil return plate (5), and the, barrel (3) are established interior filter screen (32) and outer filter screen (33) including slice annular filter screen (31) and cover down together, and interior filter screen (32) and outer filter screen (33) are tubular structure, and annular filter screen (31) fixed connection is on the upper portion of interior filter screen (32) and outer filter screen (33), and interior filter screen (32) and outer filter screen (33) are connected respectively on the inner edge and the outer fringe of annular filter screen (31), and the bottom of interior filter screen (32) and outer filter screen (33) is all fixed on returning oil board (5), the bottom of going up barrel (2) is connected on annular filter screen (31), outer barrel (1) is the structure that contracts gradually from top to bottom, it is the structure that enlarges gradually from top to bottom to going up barrel (2).
5. A compressor with an oil separator as set forth in claim 4, wherein: the inner wall of the outer cylinder body (1) is provided with strip-shaped grid plates (6) at intervals, and the strip-shaped grid plates (6) extend along the axial direction of the outer cylinder body (1).
6. A compressor with an oil separator as set forth in claim 4, wherein: the exhaust inlet (11) is arranged on the tangent direction of the outer cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810903330.XA CN109139428B (en) | 2018-08-09 | 2018-08-09 | Oil-gas separator and compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810903330.XA CN109139428B (en) | 2018-08-09 | 2018-08-09 | Oil-gas separator and compressor with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109139428A CN109139428A (en) | 2019-01-04 |
| CN109139428B true CN109139428B (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810903330.XA Active CN109139428B (en) | 2018-08-09 | 2018-08-09 | Oil-gas separator and compressor with same |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569581B (en) * | 2020-04-13 | 2021-06-29 | 北京空间飞行器总体设计部 | Gas-liquid separation device and separation method suitable for lunar gravity environment |
| CN113153697B (en) * | 2021-04-15 | 2023-05-23 | 鑫磊压缩机股份有限公司 | Annular radial fine-filtering oil-gas separation cylinder |
| WO2023029312A1 (en) * | 2021-09-06 | 2023-03-09 | 鑫磊压缩机股份有限公司 | Air compressor structure having integrated compression and separation |
| CN113731094A (en) * | 2021-09-23 | 2021-12-03 | 邵东智能制造技术研究院有限公司 | Comprehensive oil-gas separation device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332239A (en) * | 1994-06-03 | 1995-12-22 | Toyota Autom Loom Works Ltd | Reciprocating compressor |
| CN200965379Y (en) * | 2006-10-16 | 2007-10-24 | 江苏双良空调设备股份有限公司 | High efficient vertical oil and gas separator |
| CN201885498U (en) * | 2010-11-29 | 2011-06-29 | 杭州赛富特设备有限公司 | Novel centrifugal oil separator |
| CN203068891U (en) * | 2013-01-15 | 2013-07-17 | 珠海格力电器股份有限公司 | Vertical oil separator |
| CN105115206B (en) * | 2015-09-11 | 2018-01-19 | 珠海格力电器股份有限公司 | Vertical oil separator inner cylinder, vertical oil separator and arrangement method |
| CN106196774B (en) * | 2016-07-27 | 2018-09-07 | 特灵空调系统(中国)有限公司 | Oil eliminator |
| CN206890939U (en) * | 2017-06-25 | 2018-01-16 | 德州亚太集团有限公司 | A kind of novel vertical oil eliminator |
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2018
- 2018-08-09 CN CN201810903330.XA patent/CN109139428B/en active Active
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