CN112097426A - Gas-liquid separator, air conditioning system and control method thereof - Google Patents
Gas-liquid separator, air conditioning system and control method thereof Download PDFInfo
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- CN112097426A CN112097426A CN202010928999.1A CN202010928999A CN112097426A CN 112097426 A CN112097426 A CN 112097426A CN 202010928999 A CN202010928999 A CN 202010928999A CN 112097426 A CN112097426 A CN 112097426A
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- 239000007788 liquid Substances 0.000 title claims abstract description 169
- 238000004378 air conditioning Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 160
- 238000001514 detection method Methods 0.000 claims description 12
- 239000003921 oil Substances 0.000 description 41
- 239000000203 mixture Substances 0.000 description 10
- 239000010725 compressor oil Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- 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
- 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
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Combustion & Propulsion (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The application provides a gas-liquid separator, an air conditioning system and a control method thereof, wherein the gas-liquid separator comprises a primary separation device and a secondary separation device, and the primary separation device comprises a cyclone separation structure; the gas to be separated can enter the first-stage separation device and the second-stage separation device in sequence for gas-liquid separation. According to the gas-liquid separator, the air conditioning system and the control method of the gas-liquid separator, the separation efficiency is high, and the problem of liquid carrying can be avoided.
Description
Technical Field
The application belongs to the technical field of air conditioning systems, and particularly relates to a gas-liquid separator, an air conditioning system and a control method of the air conditioning system.
Background
In the air-conditioning and freezing and refrigerating industries, the separation efficiency of the existing gas-liquid separator is not high, and the existing gas-liquid separator has the problem of liquid carrying, so that the system can frequently operate with liquid, and the operation life of a compressor is greatly influenced;
therefore, how to provide a gas-liquid separator, an air conditioning system and a control method thereof, which have high separation efficiency and can avoid the liquid carrying problem, is a problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
Therefore, an object of the present invention is to provide a gas-liquid separator, an air conditioning system, and a control method thereof, which have high separation efficiency and can avoid the liquid-carrying problem.
In order to solve the above problems, the present application provides a gas-liquid separator including:
the primary separation device comprises a cyclone separation structure;
and a secondary separation device; the gas to be separated can enter the first-stage separation device and the second-stage separation device in sequence for gas-liquid separation.
Preferably, the gas-liquid separator further comprises a three-stage separation device.
Preferably, the gas-liquid separator further comprises a housing; a fixed part is arranged in the shell; the three-stage separation device is arranged on the fixing part.
Preferably, the secondary separation device is arranged in the shell and divides the shell into a first separation cavity and a second separation cavity from top to bottom; the third-stage separation device and the first-stage separation device are arranged in the first separation cavity from top to bottom.
Preferably, the secondary separation means is movable within the housing to adjust the size of the secondary separation chamber.
Preferably, the gas-liquid separator further comprises a telescopic part; the telescopic part is telescopically connected with the fixed part; the secondary separation device is arranged on the telescopic part; and the telescopic part is telescopic in the vertical direction to drive the secondary separation device to move in the shell, and further adjust the size of the second separation cavity.
Preferably, the telescopic part comprises a telescopic rod; the first end of the telescopic rod is telescopically connected with the fixing part; the second-stage separation device is arranged at the second end of the telescopic rod.
Preferably, the cyclonic separating structure comprises a helical channel; the spiral channel is arranged on the outer surface of the telescopic rod.
Preferably, the gas-liquid separator further comprises an outlet pipe disposed at the top of the housing.
Preferably, a liquid detection sensor is arranged in the outlet pipe; the liquid detection sensor is used for detecting whether the gas passing through the outlet pipe contains liquid or not;
and/or the gas-liquid separator also comprises an inlet pipe, the inlet pipe is arranged on the shell, and the outlet end of the inlet pipe is communicated to the primary separation device;
and/or the bottom of the gas-liquid separator is provided with an oil return channel; the oil return passage is provided with a control valve.
Preferably, the secondary separation device is a high-speed centrifugal separation device; the outlet of the cyclone separation structure corresponds to the inlet of the high-speed centrifugal separation device.
Preferably, the cyclonic separating structure has a gap with a side wall of the housing;
and/or a gap is reserved between the tertiary separation device and the side wall of the shell;
and/or a gap is formed between the secondary separation device and the side wall of the shell;
and/or the third-stage separation device is an ultrasonic separation device.
According to still another aspect of the present application, there is provided an air conditioning system including a compressor, a condenser, a throttling device, an evaporator, and a gas-liquid separator, which are connected in sequence and form a loop, the gas-liquid separator being as described above.
Preferably, when the bottom of the gas-liquid separator is provided with an oil return channel, the oil return channel is communicated to an oil pool of the compressor;
and/or, when the gas-liquid separator includes an outlet pipe, the outlet pipe is communicated to a suction port of the compressor.
According to still another aspect of the present application, there is provided an air conditioning system control method as described above, including the steps of:
when the gas-liquid separator comprises an outlet pipe, judging whether the gas in the outlet pipe contains liquid or not;
when the gas-liquid separator further comprises a third separation device, the start and stop of the third separation device are controlled according to whether the gas in the outlet pipe contains liquid or not.
Preferably, the step of controlling the start and stop of the third separation device according to whether the gas in the outlet pipe contains liquid further comprises the following steps:
when the gas in the outlet pipe contains liquid, and the gas-liquid separator also comprises a third-stage separation device, controlling the third-stage separation device to start;
and/or when the gas-liquid separator also comprises a three-stage separation device, controlling the three-stage separation device to be closed when the gas in the outlet pipe does not contain liquid.
Preferably, the air conditioning system control method further includes the steps of: when the oil return channel is provided with the control valve, the opening and closing of the control valve are controlled according to the liquid level in the oil pool of the compressor.
Preferably, the control of the opening and closing of the valve according to the liquid level in the oil sump of the compressor comprises the following steps:
when the liquid level in the compressor oil pool is lower than the preset liquid level, the control valve is controlled to be opened;
and/or, when the liquid level in the compressor oil pool is higher than or equal to the preset liquid level, controlling the control valve to be closed.
Preferably, the air conditioning system control method further includes the steps of: when the secondary separation device is arranged in the shell and divides the shell into a first separation cavity and a second separation cavity from top to bottom, the size of the second separation cavity is adjusted according to the air conditioner matching number.
The gas-liquid separator, the air conditioning system and the control method of the gas-liquid separator and the air conditioning system are high in separation efficiency and capable of avoiding the problem of liquid carrying.
Drawings
FIG. 1 is a schematic structural view of a gas-liquid separator according to an embodiment of the present application;
fig. 2 is a system schematic diagram of a gas-liquid separator according to an embodiment of the present application.
The reference numerals are represented as:
1. a housing; 11. a second separation chamber; 21. a primary separation device; 22. a secondary separation device; 23. a third stage separation device; 41. an inlet pipe; 42. an outlet pipe; 421. a liquid detection sensor; 5. an oil return passage; 51. a control valve; 6. a fixed part; 7. a telescopic part; 81. a compressor; 82. an evaporator; 83. a condenser; 84. a throttling device.
Detailed Description
Referring collectively to fig. 1, according to an embodiment of the present application, a gas-liquid separator includes a primary separation device 21 and a secondary separation device 22; the primary separating apparatus 21 comprises a cyclonic separating structure; the gas to be separated can enter the first-stage separation device 21 and the second-stage separation device 22 in sequence for gas-liquid separation, the two-stage separation technology is adopted, the separation efficiency is high, and the separation efficiency of the cyclone separation structure is high.
Further, the gas-liquid separator further includes a three-stage separation device 23.
Further, the gas-liquid separator also comprises a housing 1; a fixed part 6 is arranged in the shell 1; the tertiary separation device 23 is provided on the fixed portion 6.
Further, the secondary separation device 22 is arranged in the shell 1, and divides the shell 1 into a first separation cavity and a second separation cavity 11 from top to bottom; the third-stage separation device 23 and the first-stage separation device 21 are arranged in the first separation cavity from top to bottom.
Further, the secondary separating apparatus 22 is movable within the housing 1 to adjust the size of the second separating chamber 11.
Further, the gas-liquid separator also comprises a telescopic part 7; the telescopic part 7 is connected with the fixed part 6 in a telescopic way; the secondary separation device 22 is arranged on the expansion part 7; and the telescopic part 7 can be stretched in the vertical direction to drive the secondary separation device 22 to move in the shell 1, so that the size of the second separation cavity 11 can be adjusted, the storage volume has an automatic adjusting function, and the multi-machine type multi-separation device is suitable for the sharing problem.
Further, the telescopic part 7 comprises a telescopic rod; the first end of the telescopic rod is telescopically connected with the fixing part 6; the secondary separation device 22 is arranged at the second end of the telescopic rod, the size of the second separation cavity 11 at the bottom of the gas-liquid separator can be automatically matched according to the volume size of gas-liquid separation of different machine types, one gas-liquid separator can be suitable for meeting different machine types, and the universality is high; the second separation cavity 11 is divided into gas-liquid separators with different volumes such as A1 and A2 … An, and the like, and can correspondingly meet the requirements of different models B1 and B2 … Bn; when a B1 model is developed and a gas-liquid separator with the volume of A1 is needed, An instruction signal can be sent to a mainboard controller in FIG. 1, the mainboard controller starts a high-speed centrifugal separation device to automatically move downwards after receiving the instruction signal to obtain the gas-liquid separator with the volume of A1, and by analogy, the gas-liquid separator with the volume of An can be obtained, so that the volume can be intelligently adjusted, and the development requirements of different models can be met; the volume sizes A1 and A2 … An correspond to the volumes from large to small, and the volumes synchronously correspond to the models B1 and B2 … Bn from large to small.
Further, the telescopic rod is in threaded connection with the fixing part 6; the outer surface of the telescopic rod is provided with first threads, the fixing part 6 is internally provided with a telescopic cavity, and the inner surface of the telescopic cavity is provided with second threads; the first thread and the second thread are matched; when the telescopic rod is required to be stretched, the control thread is screwed to adjust the length of the telescopic rod.
Further, the cyclonic separating structure comprises a helical channel; the spiral channel is arranged on the outer surface of the telescopic rod.
Further, the gas-liquid separator further includes an outlet pipe 42, and the outlet pipe 42 is provided at the top of the housing 1.
Further, a liquid detection sensor 421 is provided in the outlet pipe 42; the liquid detection sensor 421 detects whether or not the gas passing through the outlet pipe 42 contains liquid; the body detection sensor is an infrared liquid detection sensor 421.
The gas-liquid separator also comprises an inlet pipe 41, the inlet pipe 41 is arranged on the shell 1, and the outlet end of the inlet pipe 41 is communicated to the first-stage separation device 21;
an oil return pipe is arranged at the bottom of the gas-liquid separator; the oil return pipe is provided with the control valve 51, and the independent oil return pipe improves the oil return efficiency, and can control whether the control valve 51 returns oil or not according to the oil quantity in the oil pool of the compressor 81, so that the automatic oil return function is realized, the efficient oil return is realized, the liquid (oil) is thoroughly avoided from being carried, the separated liquid (oil) is stored in the bottom of the shell 1, and the oil return efficiency is high because the independent oil return pipe is arranged at the bottom of the gas-liquid separator; and the oil return pipeline is synchronously provided with a control valve 51, the control valve 51 is an electromagnetic valve, oil can be returned from time to time according to the oil level condition of the compressor 81, namely, when the liquid level of an oil pool of the compressor 81 is lower than a preset value, an instruction signal is automatically sent to the controller, after the controller receives the instruction signal, the electromagnetic valve is automatically opened, oil is supplied to the oil pool of the compressor 81, when the liquid level of the oil pool of the compressor 81 reaches the preset value, the instruction signal is automatically sent to the controller, after the main controller receives an appointed signal, the electromagnetic valve is automatically closed, an automatic oil return cycle is completed at the moment, the automatic oil return pipeline is thoroughly and independently separated from an outlet pipe 42 of a gas-liquid separator, the problem that the compressor 81 sucks air and carries liquid is thoroughly avoided, meanwhile, the.
Further, the secondary separation device 22 is a high-speed centrifugal separation device; the outlet of the cyclone separation structure corresponds to the inlet of the high-speed centrifugal separation device.
Further, a gap is formed between the cyclone separation structure and the side wall of the shell 1;
a gap is reserved between the tertiary separation device 23 and the side wall of the shell 1;
the secondary separation device 22 has a gap with the side wall of the housing 1;
the third stage separation device 23 is an ultrasonic separation device.
The low-temperature and low-pressure gas-liquid mixture from the evaporator 82 enters the gas-liquid separator from an inlet pipe 41 of the gas-liquid separator, firstly passes through a cyclone separation structure of the primary separation device 21, after the high-speed gas-liquid mixture passes through a spiral channel of the cyclone separation structure, the gas-liquid mixture is quickly thrown onto the side wall of the shell 1 of the gas-liquid separator under the action of high-speed impact, the liquid flows downwards along the side wall of the shell 1 under the action of gravity, falls into the bottom in the shell 1 and is stored in the second separation cavity 11, and after the gas is separated, the gas which is completely separated flows upwards from a gap between the cyclone separation structure and the side wall of the shell 1 and is discharged through an outlet pipe 42; the part of the gas which is not completely separated sinks downwards, then the part of the gas enters a secondary separation device 22, namely a high-speed centrifugal separation device, the gas-liquid mixture rapidly generates centrifugal force under the action of a high-speed centrifugal fan under the high-speed running state, and the gas-liquid mixture is rapidly separated under the action of the centrifugal force, so that the liquid is rapidly thrown onto the side wall of the shell 1 and flows downwards under the action of gravity, falls into the bottom of the gas-liquid separator and is stored in a second separation cavity 11; the gas is rapidly separated and thrown upward by the centrifugal force, and then is discharged through the outlet pipe 42 of the gas-liquid separator.
In order to prevent a gas-liquid mixture from entering a suction cavity of the compressor 81 after passing through the secondary separation system and further containing a trace amount of liquid, and prevent the compressor 81 from being damaged due to liquid carrying operation, an infrared liquid detection sensor 421 is arranged at an outlet pipe 42 of the gas-liquid separator, when the infrared liquid detection sensor 421 detects that the liquid exists, information is sent to the controller, the controller starts an ultrasonic gas-liquid separation device of the tertiary separation system after receiving an instruction signal, and after the gas-liquid mixture passes through the ultrasonic gas-liquid separation device, the gas-liquid mixture is separated out by utilizing high-frequency oscillation of ultrasonic waves to achieve the purpose of thorough separation, the gas entering the suction cavity of the compressor 81 is basically pure gas, and at the moment, tertiary hyperfine separation is completed; if the infrared liquid detection sensor 421 does not detect that liquid exists, the ultrasonic gas-liquid separation device of the third-stage separation system is not started; after the three-stage hyperfine separation system, the separation efficiency is high, the separation rate reaches 99.99 percent basically, the compressor 81 is protected thoroughly, the risk of operation with liquid does not exist, and the service life of the compressor 81 is prolonged.
According to an embodiment of the present application, there is provided an air conditioning system including a compressor 81, a condenser 83, a throttling device 84, an evaporator 82, and a gas-liquid separator, which are connected in sequence and form a loop, the gas-liquid separator being the above-mentioned gas-liquid separator.
Under the refrigeration working condition of the air conditioner, a high-temperature and high-pressure gas-liquid mixture discharged from an exhaust port of the compressor 81 enters the condenser 83, the high-temperature and high-pressure gas-liquid mixture is condensed by the condenser 83 to be changed into low-temperature and high-pressure liquid, the low-temperature and high-pressure liquid is changed into a low-temperature and low-pressure gas after passing through the throttling device 84 and then enters the evaporator 82, the low-temperature and low-pressure gas is changed into a low-temperature and low-pressure gas after being evaporated by the evaporator 82, the low-temperature and low-pressure gas enters the gas-liquid separator through an inlet pipe 41 of the gas-liquid separator, and the gas after being separated by the gas.
Referring to fig. 2 in combination, the present application also discloses some embodiments, when the bottom of the gas-liquid separator is provided with an oil return pipe, the oil return pipe is communicated to the oil sump of the compressor 81;
when the gas-liquid separator includes the outlet pipe 42, the outlet pipe 42 communicates the suction port of the compressor 81 and the second separation chamber 11.
According to an embodiment of the present application, there is provided an air conditioning system control method as described above, including the steps of:
when the gas-liquid separator includes the outlet pipe 42, it is judged whether or not the gas in the outlet pipe 42 contains a liquid;
when the gas-liquid separator further comprises a third separation device, the start and stop of the third separation device are controlled according to whether the gas in the outlet pipe 42 contains liquid or not.
Further, controlling the start-stop of the third separation device according to whether the gas in the outlet pipe 42 contains liquid or not further comprises the following steps:
when the gas in the outlet pipe 42 contains liquid, when the gas-liquid separator also comprises a third-stage separation device 23, controlling the third-stage separation device 23 to start;
when the gas in the outlet pipe 42 does not contain liquid, the tertiary separation device 23 is controlled to be closed when the gas-liquid separator further includes the tertiary separation device 23.
Further, the air conditioning system control method further comprises the following steps: when the bottom of the gas-liquid separator is provided with an oil return pipe which is communicated to an oil pool of the compressor 81, and the oil return pipe is provided with the control valve 51, the control valve 51 is controlled to be opened or closed according to the liquid level in the oil pool of the compressor 81.
Further, controlling the opening and closing of the control valve 51 according to the liquid level in the oil sump of the compressor 81 includes the steps of:
when the liquid level in the oil sump of the compressor 81 is lower than a preset liquid level, the control valve 51 is controlled to be opened;
when the liquid level in the oil sump of the compressor 81 is higher than or equal to a preset level, the control valve 51 is controlled to be closed.
Further, the air conditioning system control method further comprises the following steps: when the two-stage separation device 22 is disposed in the casing 1 and divides the casing 1 into the first separation chamber and the second separation chamber 11 from top to bottom, the size of the second separation chamber 11 is adjusted according to the air conditioner matching.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (19)
1. A gas-liquid separator, comprising:
a primary separation device (21), the primary separation device (21) comprising a cyclonic separation structure;
and a secondary separation device (22); the gas to be separated can enter the first-stage separation device (21) and the second-stage separation device (22) in sequence for gas-liquid separation.
2. The gas-liquid separator according to claim 1, further comprising a three-stage separation device (23).
3. The gas-liquid separator of claim 2, further comprising a housing (1); a fixing part (6) is arranged in the shell (1); the three-stage separation device (23) is arranged on the fixing part (6).
4. The gas-liquid separator according to claim 3, wherein said secondary separating means (22) is disposed within said housing (1) and divides said housing (1) into a first separating chamber and a second separating chamber (11) from top to bottom; the third-stage separation device (23) and the first-stage separation device (21) are arranged in the first separation cavity from top to bottom.
5. The gas-liquid separator according to claim 4, wherein said secondary separating means (22) is movable within said housing (1) to adjust the size of said second separating chamber (11).
6. The gas-liquid separator according to claim 4, further comprising a telescoping section (7); the telescopic part (7) is connected with the fixing part (6) in a telescopic way; the secondary separation device (22) is arranged on the telescopic part (7); and the telescopic part (7) can be stretched in the vertical direction to drive the secondary separation device (22) to move in the shell (1), so that the size of the second separation cavity (11) is adjusted.
7. The gas-liquid separator according to claim 6, wherein said telescopic part (7) comprises a telescopic rod; the first end of the telescopic rod is telescopically connected with the fixing part (6); the second-stage separation device (22) is arranged at the second end of the telescopic rod.
8. The gas-liquid separator of claim 7, wherein the cyclonic separating structure comprises a helical passage; the spiral channel is arranged on the outer surface of the telescopic rod.
9. The gas-liquid separator according to claim 3, further comprising an outlet pipe (42), said outlet pipe (42) being disposed at a top of said housing (1).
10. The gas-liquid separator according to claim 9, wherein a liquid detection sensor (421) is provided in said outlet pipe (42); the liquid detection sensor (421) is used for detecting whether the gas passing through the outlet pipe (42) contains liquid or not;
and/or the gas-liquid separator also comprises an inlet pipe (41), the inlet pipe (41) is arranged on the shell (1), and the outlet end of the inlet pipe (41) is communicated to the primary separation device (21);
and/or the bottom of the gas-liquid separator is provided with an oil return channel (5); and a control valve (51) is arranged on the oil return channel (5).
11. The gas-liquid separator according to claim 1, wherein said secondary separation device (22) is a high-speed centrifugal separation device; the outlet of the cyclone separation structure corresponds to the inlet of the high-speed centrifugal separation device.
12. The gas-liquid separator according to claim 3, wherein there is a gap between the cyclonic separating structure and the side wall of the housing (1);
and/or a gap is arranged between the tertiary separation device (23) and the side wall of the shell (1);
and/or a gap is arranged between the secondary separation device (22) and the side wall of the shell (1);
and/or the tertiary separation device (23) is an ultrasonic separation device.
13. An air conditioning system comprising a compressor (81), a condenser (83), a throttling device (84), an evaporator (82) and a gas-liquid separator connected in sequence and forming a loop, characterized in that the gas-liquid separator is according to any one of claims 1-12.
14. The air conditioning system as claimed in claim 13, wherein when an oil return passage (5) is provided at the bottom of the gas-liquid separator, the oil return passage (5) is communicated to an oil sump of the compressor (81);
and/or, when the gas-liquid separator comprises an outlet pipe (42), the outlet pipe (42) is communicated to a suction port of the compressor (81).
15. An air conditioning system control method according to any one of claims 13 to 14, characterized by comprising the steps of:
when the gas-liquid separator comprises an outlet pipe (42), judging whether the gas in the outlet pipe (42) contains liquid or not;
when the gas-liquid separator further comprises a third separation device, the start and stop of the third separation device are controlled according to whether the gas in the outlet pipe (42) contains liquid or not.
16. The air conditioning system control method according to claim 15, wherein the controlling of the start and stop of the third separation device according to whether the gas in the outlet pipe (42) contains the liquid further comprises the steps of:
when the gas in the outlet pipe (42) contains liquid, controlling the three-stage separation device (23) to start when the gas-liquid separator further comprises the three-stage separation device (23);
and/or when the gas in the outlet pipe (42) does not contain liquid, controlling the three-stage separation device (23) to be closed when the gas-liquid separator also comprises the three-stage separation device (23).
17. The air conditioning system control method according to claim 15, further comprising the steps of: when bottom of vapour and liquid separator is provided with oil return passage (5), oil return passage (5) intercommunication compressor (81) the oil sump with second separation chamber (11), when being provided with control valve (51) on oil return passage (5), according to liquid level control in compressor (81) oil sump the switching of control valve (51).
18. The air conditioning system control method according to claim 17, wherein said controlling the opening and closing of said control valve (51) according to the liquid level in the oil sump of said compressor (81) comprises the steps of:
when the liquid level in the oil pool of the compressor (81) is lower than a preset liquid level, controlling the control valve (51) to be opened;
and/or, when the liquid level in the oil sump of the compressor (81) is higher than or equal to a preset liquid level, controlling the control valve (51) to close.
19. The air conditioning system control method according to claim 15, further comprising the steps of: when the secondary separation device (22) is arranged in the shell (1) and divides the shell (1) into a first separation cavity and a second separation cavity (11) from top to bottom, the size of the second separation cavity (11) is adjusted according to the air conditioner number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010928999.1A CN112097426B (en) | 2020-09-07 | 2020-09-07 | Gas-liquid separator, air conditioning system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010928999.1A CN112097426B (en) | 2020-09-07 | 2020-09-07 | Gas-liquid separator, air conditioning system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112097426A true CN112097426A (en) | 2020-12-18 |
| CN112097426B CN112097426B (en) | 2024-04-19 |
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| CN202010928999.1A Active CN112097426B (en) | 2020-09-07 | 2020-09-07 | Gas-liquid separator, air conditioning system and control method thereof |
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| CN (1) | CN112097426B (en) |
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| CN112097426B (en) | 2024-04-19 |
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