CN108168165B - Gas-liquid oil separator of fluorine refrigerating system - Google Patents
Gas-liquid oil separator of fluorine refrigerating system Download PDFInfo
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- CN108168165B CN108168165B CN201810148655.1A CN201810148655A CN108168165B CN 108168165 B CN108168165 B CN 108168165B CN 201810148655 A CN201810148655 A CN 201810148655A CN 108168165 B CN108168165 B CN 108168165B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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Abstract
The invention discloses a gas-liquid oil separator of a fluorine refrigeration system, which comprises a cylinder body, wherein the axial section of the side wall of the cylinder body is in a trapezoidal shape and is provided with a circular top cover and a circular bottom cover, the diameter of the circular top cover is larger than that of the circular bottom cover, an air inlet at the upper part of the side wall of the cylinder body is connected with an air inlet pipe which introduces refrigerant gas which is carried with refrigerant liquid and lubricating oil and comes from an evaporator into the cylinder body, and the circular top cover is connected with an air return pipe which sends; the air return pipe comprises a straight pipe part and an elbow part which is connected with the straight pipe part and is arranged in the cylinder body with an opening at the free end, the bottom hole of the elbow part is connected with the vertical oil suction pipe, and the other end of the vertical oil suction pipe is connected with an oil suction hose which is closed at the free end, can float on the liquid level and is provided with an oil suction port; the inside of the cylinder body is provided with a spiral hot air pipe connected with an exhaust connecting pipe of the refrigeration compressor and an inlet connecting pipe of the condenser. The invention utilizes the refrigerant gas carrying liquid and lubricating oil to form rotational flow in the cylinder body, and the lubricating oil and the liquid are separated from the refrigerant gas under the action of centrifugal force.
Description
Technical Field
The invention relates to the technical field of refrigeration air conditioners, in particular to a gas-liquid oil separator of a fluorine refrigeration system.
Background
The existing large-scale fluorine refrigerating system is characterized in that a gas-liquid separator is arranged at an outlet of an evaporator, so that refrigerant liquid carried by the refrigerant gas is prevented from entering a refrigerating compressor, and the occurrence of liquid impact accidents of the refrigerating compressor is caused. Meanwhile, the relative running surface of the refrigeration compressor cannot be well lubricated, the power consumption is increased, the performance of a refrigeration system and the reliability of the refrigeration compressor are reduced, and the refrigerant gas mixed in the refrigerant liquid influences the utilization space of the gas-liquid separator.
Disclosure of Invention
The invention aims to provide a gas-liquid oil separator of a fluorine refrigerating system aiming at the technical defects in the prior art so as to further improve the running performance of a refrigerating air-conditioning system and ensure the reliability of a refrigerating compressor.
The technical scheme adopted for realizing the purpose of the invention is as follows:
a fluorine refrigerating system gas-liquid oil separator comprises a cylinder body, wherein the upper end and the lower end of the axial section of the side wall of the cylinder body are respectively provided with a circular top cover and a circular bottom cover, the diameter of the circular top cover is larger than that of the circular bottom cover, an air inlet close to the circular top cover on the side wall of the cylinder body is connected with an air inlet pipe used for introducing refrigerant liquid and lubricating oil carried refrigerant gas from an evaporator into the cylinder body, and the circular top cover is connected with an air return pipe used for returning the refrigerant gas separated from the cylinder body to a refrigerating compressor; the air return pipe comprises a straight pipe part and an elbow part connected with the straight pipe part, and the free end of the elbow part is open; the bent pipe part is positioned in the cylinder body, the straight pipe part penetrates through the circular top cover and extends out of the cylinder body, an orifice is formed in the upper bottom of the pipe wall of the bent pipe part and is connected with an oil absorption vertical pipe, the other end of the oil absorption vertical pipe is sleeved with an oil absorption hose which is closed at a free end and can float on the liquid level, and an oil suction port is formed in the pipe wall of the oil absorption hose, which is in contact with the liquid level; a spiral hot air pipe is arranged in the cylinder body at a position close to the round bottom cover; the inlet and the outlet of the hot air pipe extend out of the cylinder body from the side wall of the cylinder body, the inlet of the hot air pipe is connected with an exhaust connecting pipe of the refrigeration compressor, and the outlet of the hot air pipe is connected with an inlet connecting pipe of the condenser.
And an orifice at the upper bottom of the pipe wall of the bent pipe part is welded and connected with the oil absorption vertical pipe.
And the inlet and the outlet of the hot air pipe are connected with the hole on the side wall of the cylinder body in a welding manner.
The straight pipe part extends out of the cylinder body through an opening on the circular top cover and is connected with the opening on the circular top cover in a welding mode.
The air inlet is connected with the air inlet pipe in a welding mode.
The circular top cover and the circular bottom cover are connected with the cylindrical side wall in a welding mode.
The invention relates to a gas-liquid oil separator of a fluorine refrigeration system, which utilizes refrigerant gas carrying liquid and lubricating oil to form rotational flow in a cylinder body, the refrigerant gas flows out of the cylinder body from an air return connecting pipe at the upper part at the center of the rotational flow, the lubricating oil and the liquid flow to the bottom of the cylinder body along the inner wall of the cylinder body under the action of centrifugal force because the density of the liquid and the lubricating oil is greater than that of the gas, thereby realizing effective separation with the refrigerant gas, the lubricating oil floating on the liquid level is brought back to a compressor by the refrigerant gas, thereby ensuring that the lubricating oil is brought back to the refrigeration compressor in time, preventing the liquid from entering the; the refrigerant liquid is heated by the exhaust heat of the refrigeration compressor, and the refrigerant gas is separated and precipitated.
Drawings
FIG. 1 is a schematic view of a fluorine refrigeration system gas-liquid oil separator of the present invention;
fig. 2 is a top view of fig. 1.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, a fluorine refrigeration system gas-liquid oil separator comprises:
the cylinder body 2 is formed by welding a circular top cover, a circular bottom cover and a cylindrical side wall, the diameter of the circular top cover is larger than that of the circular bottom cover, the axial section outline of the side wall is trapezoidal, and the side wall part of the cylinder body 2, which is close to the edge of the circular top cover, is provided with an air inlet and is welded with an air inlet pipe 7;
the round top cover is provided with an air return pipe 1 for returning refrigerant gas separated from the cylinder to the refrigeration compressor, the air return pipe 1 is composed of a bent pipe part with an open end and a straight pipe part, the open bent pipe part is arranged in the cylinder 2, the bottom of the open bent pipe part is provided with an oil suction port connected with an oil suction vertical pipe 3, the straight pipe part of the air return pipe 1 penetrates through the round top cover of the cylinder 2 and is fixedly connected with an orifice on the round top cover in a welding way, and the other end of the air return pipe is connected with an air inlet of the refrigeration compressor.
One end of the vertical oil suction pipe 3 is welded with the oil suction port at the bottom of the open bent pipe part of the air return pipe 1, the other end of the vertical oil suction pipe is sleeved with an oil suction hose 6 capable of floating on the liquid level, one end of the oil suction hose 6 is blocked to form a closed state, the other end of the oil suction hose 6 is tightly sleeved outside the other end of the vertical oil suction pipe 3, and the pipe wall of the vertical oil suction pipe at the position contacting with the liquid level is provided with an oil suction port 5.
A spiral hot air pipe 4 is arranged in the cylinder body at a position close to the round bottom cover; the hot air pipe 4 is spiral and is arranged in the cylinder body 2 close to the round bottom cover, and the inlet pipe section and the outlet pipe section of the hot air pipe penetrate through the side wall of the cylinder body 2 and are connected with the side wall in a welding mode.
The size of the cylinder 2 is determined according to the refrigeration load of a refrigeration system, and the size of the oil suction hose 6 is set to be capable of floating on the liquid surface.
When the refrigerating system operates, refrigerant gas from the evaporator carries refrigerant liquid and lubricating oil, enters the cylinder 2 through the air inlet pipe 7, forms rotational flow in the cylinder, flows out of the cylinder from the air return pipe 1 at the upper part in the center of the rotational flow, and enters the refrigerating compressor. Because the density of the liquid and the lubricating oil is larger than that of the gas, under the action of centrifugal force, the lubricating oil and the liquid flow to the bottom of the cylinder along the inner wall of the cylinder, similarly, because of different densities, the liquid is deposited at the lowest part of the cylinder bottom, the lubricating oil floats on the liquid level, the lubricating oil is sucked into the elbow part of the gas return pipe 1 by refrigerant gas through the oil suction port 5 of the oil suction hose 6, part of the lubricating oil is brought back to the refrigeration compressor, part of the lubricating oil is gathered at the elbow part, when a certain amount of the lubricating oil is gathered, two ends of the bottom of the elbow part are blocked, pressure difference is formed between two sides of the lubricating oil, the lubricating oil is sucked into the refrigeration compressor under the action of the pressure difference.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A fluorine refrigerating system gas-liquid oil separator is characterized by comprising a cylinder body, wherein the upper end and the lower end of the axial section of the side wall of the cylinder body are respectively provided with a circular top cover and a circular bottom cover, the diameter of the circular top cover is larger than that of the circular bottom cover, an air inlet close to the circular top cover on the side wall of the cylinder body is connected with an air inlet pipe used for introducing refrigerant liquid and lubricating oil carried refrigerant gas from an evaporator into the cylinder body, and the circular top cover is connected with an air return pipe used for returning the refrigerant gas separated from the cylinder body to a refrigerating compressor; the air return pipe comprises a straight pipe part and an elbow part connected with the straight pipe part, and the free end of the elbow part is open; the bent pipe part is positioned in the cylinder body, the straight pipe part penetrates through the circular top cover and extends out of the cylinder body, an orifice is formed in the upper bottom of the pipe wall of the bent pipe part and is connected with an oil absorption vertical pipe, the other end of the oil absorption vertical pipe is sleeved with an oil absorption hose which is closed at a free end and can float on the liquid level, and an oil suction port is formed in the pipe wall of the oil absorption hose, which is in contact with the liquid level; a spiral hot air pipe is arranged in the cylinder body at a position close to the round bottom cover; the inlet and the outlet of the hot air pipe extend out of the cylinder body from the side wall of the cylinder body, the inlet of the hot air pipe is connected with an exhaust connecting pipe of the refrigeration compressor, and the outlet of the hot air pipe is connected with an inlet connecting pipe of the condenser;
an orifice at the upper bottom of the pipe wall of the bent pipe part is welded and connected with the oil absorption vertical pipe;
and the inlet and the outlet of the hot air pipe are connected with the hole on the side wall of the cylinder body in a welding manner.
2. The gas-liquid oil separator for a fluorine refrigeration system according to claim 1 wherein said straight tube portion extends out of said cylinder through an opening in said circular top cover and is welded to said opening in said circular top cover.
3. The gas-liquid oil separator of a fluorine refrigeration system as recited in claim 1 wherein said inlet port is welded to said inlet pipe.
4. The gas-liquid oil separator for a fluorine refrigeration system according to claim 1 wherein said circular top cover and circular bottom cover are welded to said cylindrical side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148655.1A CN108168165B (en) | 2018-02-13 | 2018-02-13 | Gas-liquid oil separator of fluorine refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148655.1A CN108168165B (en) | 2018-02-13 | 2018-02-13 | Gas-liquid oil separator of fluorine refrigerating system |
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| Publication Number | Publication Date |
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| CN108168165A CN108168165A (en) | 2018-06-15 |
| CN108168165B true CN108168165B (en) | 2020-04-24 |
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| CN201810148655.1A Active CN108168165B (en) | 2018-02-13 | 2018-02-13 | Gas-liquid oil separator of fluorine refrigerating system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219911B (en) * | 2020-01-09 | 2020-12-11 | 珠海格力电器股份有限公司 | Injection oil return device and refrigeration equipment |
| CN114322380A (en) * | 2022-01-10 | 2022-04-12 | 台州龙江化工机械科技有限公司 | Gas-liquid separator and gas-liquid separator |
| CN115790010A (en) * | 2022-12-15 | 2023-03-14 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201373634Y (en) * | 2009-03-20 | 2009-12-30 | 宁波奥克斯电气有限公司 | Oil and gas separator |
| JP5657061B2 (en) * | 2013-06-19 | 2015-01-21 | 三菱電機株式会社 | Cyclone oil separator, compression refrigeration apparatus and air compression apparatus provided with the same |
| CN203672008U (en) * | 2013-12-25 | 2014-06-25 | 堃霖冷冻机械(上海)有限公司 | Gas-liquid separator for freon refrigerating plant |
| JP6403061B2 (en) * | 2014-02-13 | 2018-10-10 | パナソニックＩｐマネジメント株式会社 | Oil separator |
| CN203848574U (en) * | 2014-05-21 | 2014-09-24 | 温岭市钱江化工机械有限公司 | Liquid filtering type oil separator used for refrigerating system |
| CN204227780U (en) * | 2014-10-08 | 2015-03-25 | 新昌县宏宇制冷有限公司 | A kind of centrifugal oil separator |
| CN207999974U (en) * | 2018-02-13 | 2018-10-23 | 天津商业大学 | A kind of fluorine refrigeration system gas-liquid oil eliminator |
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Effective date of registration: 20201113 Address after: 221300, Jiangsu City, Xuzhou province Pizhou Town Industrial Park Patentee after: XUZHOU RUR TOOLS MAKING Co.,Ltd. Address before: 300134 No. 409, glorious road, Beichen District, Tianjin Patentee before: TIANJIN University OF COMMERCE |
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Effective date of registration: 20210430 Address after: 110000 No.57, Nanwu Road, Heping District, Shenyang City, Liaoning Province Patentee after: LIAONING HUAKE PETROLEUM APPARATUS SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 221300 nianzhuang Town Industrial Park, Pizhou City, Xuzhou City, Jiangsu Province Patentee before: XUZHOU RUR TOOLS MAKING Co.,Ltd. |
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