CN111947354A - Oil separator, control method thereof and air conditioning unit - Google Patents
Oil separator, control method thereof and air conditioning unit Download PDFInfo
- Publication number
- CN111947354A CN111947354A CN202010911223.9A CN202010911223A CN111947354A CN 111947354 A CN111947354 A CN 111947354A CN 202010911223 A CN202010911223 A CN 202010911223A CN 111947354 A CN111947354 A CN 111947354A
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- oil
- oil separator
- heating
- gas mixture
- assembly
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004378 air conditioning Methods 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 55
- 239000000203 mixture Substances 0.000 claims abstract description 33
- 238000000926 separation method Methods 0.000 claims abstract description 29
- 239000003921 oil Substances 0.000 abstract description 84
- 239000003507 refrigerant Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000010687 lubricating oil Substances 0.000 abstract description 5
- 238000005057 refrigeration Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005485 electric heating Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000010726 refrigerant oil Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- 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
- F25B43/003—Filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
-
- 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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
-
- 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
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The application provides an oil separator, a control method of the oil separator and an air conditioning unit. Wherein, oil separator includes oil content barrel, oil separating component and heating element, is provided with air inlet and gas vent on the oil content barrel, and oil separating component sets up in the oil content barrel for the oil-gas mixture separation to the air inlet entering. The heating assembly is arranged on the oil separation assembly and used for heating the oil-gas mixture. By applying the technical scheme of the invention, in the process of separating the oil-gas mixture, if the exhaust temperature of the compressor is too low, the oil-gas mixture in the separation process can be heated by the heating assembly, so that the temperature of the oil-gas mixture is increased, a liquid refrigerant in the oil-gas mixture is evaporated, the content of emulsified refrigeration oil is effectively reduced, and the oil gas can be separated in a positive production mode. Meanwhile, the problem that the refrigerant is easy to carry lubricating oil to deposit in the oil content barrel at a low exhaust temperature can be effectively avoided, so that the oil content efficiency is improved, and the normal oil supply of the unit is ensured.
Description
Technical Field
The invention relates to the technical field of air conditioning parts, in particular to an oil separator, a control method of the oil separator and an air conditioning unit.
Background
The separation efficiency of the existing oil separator is based on the normal exhaust temperature whether a two-stage or three-stage oil separator is adopted. When the exhaust temperature of the compressor is lowered due to the factors such as liquid entrainment in the suction gas or low condensation temperature, the refrigerating machine oil in the exhaust gas is easily emulsified to generate an emulsified mixture, and the main components of the emulsified mixture are liquid refrigerant and lubricating oil.
The emulsified mixture can lead the oil separator to be difficult to separate the refrigeration oil through the oil content due to the existence of the components of the liquid refrigerant, and further the oil content efficiency of the oil separator is greatly reduced, so that the lubricating oil in the unit is insufficient, the lubricating and sealing effect of the unit is weakened, the moving parts are possibly worn when the plot is serious, the unit is out of oil and is in fault shutdown, and the unit cannot normally work.
Disclosure of Invention
The embodiment of the invention provides an oil separator, a control method thereof and an air conditioning unit, and aims to solve the technical problem that an oil separator in the prior art cannot effectively separate low-temperature oil-gas mixtures.
An embodiment of the present application provides an oil separator, including: the oil separation barrel is provided with an air inlet and an air outlet; the oil separation component is arranged in the oil separation cylinder and is used for separating oil-gas mixtures entering the air inlet; and the heating assembly is arranged on the oil separation assembly and used for heating the oil-gas mixture.
In one embodiment, the oil separator includes a bypass line, an input end of the bypass line communicating with the exhaust port and an output end of the bypass line communicating with the intake port.
In one embodiment, a bypass valve is provided on the bypass line for controlling the opening or closing of the bypass line.
In one embodiment, the exhaust port is provided with an exhaust valve, and the exhaust valve is used for controlling the opening degree of the exhaust port.
In one embodiment, an intake temperature sensor is arranged on the intake port, the bypass valve controls the on-off or opening degree of the bypass pipeline according to the temperature detected by the intake temperature sensor, and the exhaust valve controls the opening degree of the exhaust port according to the temperature detected by the intake temperature sensor.
In one embodiment, the oil separation assembly includes a swirl component and a first screen disposed below the swirl component, the swirl component being located at the position of the air inlet, and the heating assembly includes a first heating member disposed on the swirl component or the first screen.
In one embodiment, the heating assembly further comprises a second heating member, the first heating member and the second heating member being disposed on the spinning member and the first screen, respectively.
In one embodiment, the oil separation assembly further includes a second screen disposed above the spin pack member.
The application also provides a control method of the oil separator, which is used for controlling the oil separator and comprises the following steps: detecting the air inlet temperature of the air inlet, and if the air inlet temperature is lower than a first preset value, opening the bypass pipeline and the heating assembly and reducing the opening degree of the air outlet; if the intake air temperature is higher than a second predetermined value, the bypass line and the heating assembly are closed, and the opening degree of the exhaust port is restored.
The application also provides an air conditioning unit, which comprises the oil separator.
In the above embodiment, in the oil-gas mixture separation process, if the exhaust temperature of the compressor is too low, the oil-gas mixture in the separation process can be heated by the heating assembly, so that the temperature of the oil-gas mixture is increased, a liquid refrigerant in the oil-gas mixture is evaporated, the emulsified refrigeration oil content is effectively reduced, and the oil and gas can be separated in a positive production mode. Meanwhile, the problem that the refrigerant is easy to carry lubricating oil to deposit in the oil content barrel at a low exhaust temperature can be effectively avoided, so that the oil content efficiency is improved, and the normal oil supply of the unit is ensured. In addition, through the technical scheme of the invention, the exhaust temperature of the compressor can be increased, the oil supply temperature is increased, and the oil supply resistance is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic external structural view of an embodiment of an oil separator according to the present invention;
fig. 2 is a schematic cross-sectional structure of the oil separator of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Fig. 1 and 2 show an embodiment of an oil separator according to the present invention, which includes an oil cylinder 10, an oil separation module 20, and a heating module 30, wherein the oil cylinder 10 is provided with an air inlet 11 and an air outlet 12, and the oil separation module 20 is provided in the oil cylinder 10 to separate an oil-gas mixture entering from the air inlet 11. The heating assembly 30 is arranged on the oil separation assembly 20 and used for heating the oil-gas mixture.
By applying the technical scheme of the invention, in the process of separating the oil-gas mixture, if the exhaust temperature of the compressor is too low, the oil-gas mixture in the separation process can be heated by the heating assembly 30, so that the temperature of the oil-gas mixture is increased, a liquid refrigerant in the oil-gas mixture is evaporated, the content of emulsified refrigeration oil is effectively reduced, and the oil gas can be separated in a positive production mode. Meanwhile, the problem that the refrigerant is easy to carry lubricating oil to deposit in the oil content cylinder body 10 at a low exhaust temperature can be effectively avoided, so that the oil content efficiency is improved, and the normal oil supply of the unit is ensured. In addition, through the technical scheme of the invention, the exhaust temperature of the compressor can be increased, the oil supply temperature is increased, and the oil supply resistance is reduced.
As shown in fig. 2, as a preferred embodiment, the oil separator includes a bypass line 40, an input end of the bypass line 40 communicates with the exhaust port 12, and an output end of the bypass line 40 communicates with the intake port 11. If the temperature of the oil-gas mixture discharged from the exhaust port 12 is still low after being heated by the heating assembly 30, a part of the oil-gas mixture in the exhaust port 12 can be returned to the intake port 11 through the bypass line 40, so that the oil-gas mixture can be further heated and separated by the heating assembly 30. Preferably, a bypass valve 41 is provided in the bypass line 40, and the bypass valve 41 is used for controlling the opening/closing or opening of the bypass line 40. Alternatively, in the technical solution of the present embodiment, the bypass valve 41 is an electromagnetic valve, and as another alternative embodiment, the bypass valve 41 may also be a stop valve. More preferably, a check valve 42 is further disposed on the bypass line 40 to prevent the oil-gas mixture entering from the air inlet 11 from reversely entering the bypass line 40.
More preferably, in the present embodiment, the exhaust port 12 is provided with an exhaust valve 121, and the exhaust valve 121 is used to control the opening degree of the exhaust port 12. In this way, the effect of the bypass line 40 on the circulation heating can be increased by reducing the opening degree of the exhaust port 12.
Optionally, in the technical solution of the present embodiment, an intake temperature sensor 111 is disposed on the intake port 11, the bypass valve 41 controls the opening or closing of the bypass line 40 according to the temperature detected by the intake temperature sensor 111, and the exhaust valve 121 controls the opening of the exhaust port 12 according to the temperature detected by the intake temperature sensor 111. The temperature of the oil-gas mixture is detected through the intake temperature sensor 111, and accurate control of improving the temperature of the oil-gas mixture can be achieved.
Optionally, in the technical solution of the present embodiment, the oil separation cylinder 10 is further provided with an oil supply port 13. Preferably, the oil separating assembly 20 includes a cyclone part 21, a first strainer 22 disposed below the cyclone part 21, and a second strainer 23 disposed above the cyclone part 21, the cyclone part 21 being located at the position of the air inlet 11, the heating assembly 30 including a first heating member 31 and a second heating member 32, the first heating member 31 being disposed on the cyclone part 21, the second heating member 32 being disposed on the first strainer 22. The oil-gas mixture discharged by the compressor enters through the air inlet 11, firstly, after large oil drops are preliminarily separated through the cyclone component 21, the oil drops are filtered through the first filter screen 22 for secondary separation, finally, the oil drops are filtered through the second filter screen 23 to complete the whole cycle, and the filtered gas enters the condenser through the air outlet 12. The filtered oil enters an oil storage pool at the bottom of the oil separation cylinder 10 and returns to the compressor through an oil supply port 13.
Optionally, the first filter screen 22 is a second filter screen, and the second filter screen 23 is a third fine filter screen.
As other alternative embodiments, only the first heating member 31 may be provided without the second heating member 32, and the first heating member 31 may be provided on the rotating member 21 or the first screen 22. This embodiment has a lower heating capacity for the oil-gas mixture than the above-described embodiments.
As an alternative embodiment, only the first screen 22 and not the second screen 23 may be provided, which is relatively weak for filtering oil and gas compared to the above-described embodiment.
Optionally, in the technical solution of the present embodiment, in order to ensure that the first heating member 31 and the second heating member 32 can effectively transfer heat, gaps between the first heating member 31 and the second heating member 32 and the corresponding oil separation assemblies are coated with appropriate heat-conducting silicone grease to effectively transfer heat, so as to prevent the first heating member 31 and the second heating member 32 from being burnt due to high surface temperature. Alternatively, the first heating member 31 and the second heating member 32 are electric heating members, and the surfaces of the electric heating members are selected when the electric heating members are selectedThe load should not be more than 2.5W/cm2。
Optionally, as shown in fig. 1, the oil separation cylinder 10 is further provided with components commonly used in oil separators, such as a relief valve 51, an exhaust temperature sensor 52, a high level view mirror 53, a blowdown valve 54, an oil level switch 55, an oil temperature sensor 56, an oil electric heater 57, a low level view mirror 58, and an oil filling valve 59.
The invention also provides a control method of the oil separator, which is used for controlling the oil separator and comprises the following steps: detecting the intake air temperature of the intake port 11, and if the intake air temperature is lower than a first predetermined value, opening the bypass line 40 and the heating assembly 30, and reducing the opening degree of the exhaust port 12; if the intake air temperature is higher than the second predetermined value, the bypass line 40 and the heating assembly 30 are closed, and the opening degree of the exhaust port 12 is restored. By applying the technical scheme of the invention, whether the heating assembly 30 and the bypass pipeline 40 are adopted can be automatically controlled according to the inlet air temperature, so that the automatic control of the oil separator is realized.
Specifically, in the technical solution of the present embodiment, when it is detected that the intake air temperature is lower than 50 ℃, the bypass line 40 is opened, the opening degree of the exhaust port 12 is reduced to 50%, and the heating assembly 30 is opened to cyclically heat the exhaust air temperature. If the detected intake air temperature is 55 ° or more, the bypass line 40 and the heating element 30 are closed, and the opening degree of the exhaust port 12 is restored to the full open state.
The invention also provides an air conditioning unit which comprises the oil separator. By applying the technical scheme of the invention, the oil-gas mixture can be fully separated, and further, the moving parts of the air conditioning unit can be fully lubricated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An oil separator, comprising:
the oil separation device comprises an oil separation cylinder (10), wherein an air inlet (11) and an air outlet (12) are formed in the oil separation cylinder (10);
the oil separation assembly (20) is arranged in the oil separation barrel (10) and is used for separating oil-gas mixtures entering the air inlet (11);
and the heating assembly (30) is arranged on the oil separation assembly (20) and is used for heating the oil-gas mixture.
2. -oil separator according to claim 1, characterised in that it comprises a bypass line (40), the input of which (40) communicates with the exhaust port (12) and the output of which (40) communicates with the intake port (11).
3. -oil separator according to claim 2, characterised in that a bypass valve (41) is arranged on the bypass line (40), said bypass valve (41) being intended to control the make-and-break or opening of the bypass line (40).
4. -oil separator according to claim 3, characterised in that a discharge valve (121) is provided on the discharge opening (12), the discharge valve (121) being intended to control the opening of the discharge opening (12).
5. The oil separator according to claim 4, wherein an intake air temperature sensor (111) is provided on the intake port (11), the bypass valve (41) controls the opening or closing of the bypass line (40) according to the temperature detected by the intake air temperature sensor (111), and the exhaust valve (121) controls the opening of the exhaust port (12) according to the temperature detected by the intake air temperature sensor (111).
6. -oil separator according to claim 1, characterised in that the oil separation assembly (20) comprises a swirl element (21) and a first sieve (22) arranged below the swirl element (21), the swirl element (21) being located at the position of the air inlet (11), the heating assembly (30) comprising a first heating element (31), the first heating element (31) being arranged on the swirl element (21) or on the first sieve (22).
7. -oil separator according to claim 6, characterised in that the heating assembly (30) also comprises a second heating element (32), the first heating element (31) and the second heating element (32) being provided on the swirl element (21) and on the first sieve (22), respectively.
8. The oil separator of claim 6, wherein the oil separation assembly (20) further comprises a second screen (23), the second screen (23) being disposed above the swirl element (21).
9. A control method for an oil separator, characterized by being used for controlling the oil separator according to any one of claims 2 to 5, the control method comprising:
detecting the intake air temperature of the intake port (11), and if the intake air temperature is lower than a first predetermined value, opening the bypass line (40) and the heating assembly (30), and reducing the opening degree of the exhaust port (12); if the intake air temperature is higher than a second predetermined value, the bypass line (40) and the heating assembly (30) are closed, and the opening degree of the exhaust port (12) is restored.
10. An air conditioning assembly comprising an oil separator, wherein the oil separator is as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010911223.9A CN111947354B (en) | 2020-09-02 | 2020-09-02 | Oil separator, control method thereof and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010911223.9A CN111947354B (en) | 2020-09-02 | 2020-09-02 | Oil separator, control method thereof and air conditioning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111947354A true CN111947354A (en) | 2020-11-17 |
| CN111947354B CN111947354B (en) | 2024-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010911223.9A Active CN111947354B (en) | 2020-09-02 | 2020-09-02 | Oil separator, control method thereof and air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111947354B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151874A (en) * | 2021-10-28 | 2022-03-08 | 浙江中广电器股份有限公司 | Multi-split low-temperature starting device and control method |
| CN117469822A (en) * | 2023-12-27 | 2024-01-30 | 珠海格力电器股份有限公司 | Air conditioning unit, control method and storage medium |
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| GB576921A (en) * | 1944-04-22 | 1946-04-26 | Standard Pressed Steel Co | Improvements in or relating to refrigerating systems |
| JP2001027460A (en) * | 1993-12-28 | 2001-01-30 | Mitsubishi Electric Corp | Refrigeration cycle system |
| JP2008121926A (en) * | 2006-11-09 | 2008-05-29 | Mitsubishi Heavy Ind Ltd | Refrigeration air conditioner |
| CN202109707U (en) * | 2011-05-20 | 2012-01-11 | 林志辉 | Oil separator with electric heating device |
| CN104344613A (en) * | 2013-08-06 | 2015-02-11 | 珠海格力电器股份有限公司 | Oil separator |
| CN104422217A (en) * | 2013-08-27 | 2015-03-18 | 珠海格力电器股份有限公司 | Oil return control method for refrigeration system |
| CN105737467A (en) * | 2014-12-08 | 2016-07-06 | 天津市天元机械制造有限公司 | Refrigeration mixed liquor separation device |
| JP2016151381A (en) * | 2015-02-17 | 2016-08-22 | デンゲン株式会社 | Oil separator for refrigerant recovery charging |
| CN106969562A (en) * | 2016-01-13 | 2017-07-21 | 珠海格力电器股份有限公司 | Oil separator and air conditioning system with same |
| CN212362527U (en) * | 2020-09-02 | 2021-01-15 | 珠海格力电器股份有限公司 | Oil separator and air conditioning unit |
-
2020
- 2020-09-02 CN CN202010911223.9A patent/CN111947354B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB576921A (en) * | 1944-04-22 | 1946-04-26 | Standard Pressed Steel Co | Improvements in or relating to refrigerating systems |
| JP2001027460A (en) * | 1993-12-28 | 2001-01-30 | Mitsubishi Electric Corp | Refrigeration cycle system |
| JP2008121926A (en) * | 2006-11-09 | 2008-05-29 | Mitsubishi Heavy Ind Ltd | Refrigeration air conditioner |
| CN202109707U (en) * | 2011-05-20 | 2012-01-11 | 林志辉 | Oil separator with electric heating device |
| CN104344613A (en) * | 2013-08-06 | 2015-02-11 | 珠海格力电器股份有限公司 | Oil separator |
| CN104422217A (en) * | 2013-08-27 | 2015-03-18 | 珠海格力电器股份有限公司 | Oil return control method for refrigeration system |
| CN105737467A (en) * | 2014-12-08 | 2016-07-06 | 天津市天元机械制造有限公司 | Refrigeration mixed liquor separation device |
| JP2016151381A (en) * | 2015-02-17 | 2016-08-22 | デンゲン株式会社 | Oil separator for refrigerant recovery charging |
| CN106969562A (en) * | 2016-01-13 | 2017-07-21 | 珠海格力电器股份有限公司 | Oil separator and air conditioning system with same |
| CN212362527U (en) * | 2020-09-02 | 2021-01-15 | 珠海格力电器股份有限公司 | Oil separator and air conditioning unit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151874A (en) * | 2021-10-28 | 2022-03-08 | 浙江中广电器股份有限公司 | Multi-split low-temperature starting device and control method |
| CN117469822A (en) * | 2023-12-27 | 2024-01-30 | 珠海格力电器股份有限公司 | Air conditioning unit, control method and storage medium |
| CN117469822B (en) * | 2023-12-27 | 2024-03-19 | 珠海格力电器股份有限公司 | Air conditioning unit, control method and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111947354B (en) | 2024-03-19 |
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