CN111219914A - Hot fluorine defrosting and refrigerating cycle system of air cooler - Google Patents
Hot fluorine defrosting and refrigerating cycle system of air cooler Download PDFInfo
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- CN111219914A CN111219914A CN202010032572.3A CN202010032572A CN111219914A CN 111219914 A CN111219914 A CN 111219914A CN 202010032572 A CN202010032572 A CN 202010032572A CN 111219914 A CN111219914 A CN 111219914A
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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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- F25B43/006—Accumulators
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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
- 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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses an air cooler hot fluorine defrosting and refrigerating cycle system, relates to the technical field of refrigeration, and aims to solve the problem that the defrosting effect is influenced when an expansion valve is throttled too much, and the key points of the technical scheme are as follows: the system comprises a compressor, a four-way valve, a condenser, a two-way liquid storage device, an expansion valve, a gas-liquid separator and an evaporator; the second port of the condenser is connected with a first liquid storage port of the bidirectional liquid storage device through a pipeline, a first one-way valve is arranged on the pipeline between the condenser and the bidirectional liquid storage device, the second liquid storage port of the bidirectional liquid storage device is connected with an expansion valve, the expansion valve is connected with the fourth port of the evaporator, the expansion valve is connected with a second one-way valve in parallel, and the flowing direction of the second one-way valve is from the evaporator to the bidirectional liquid storage device. The second one-way valve is connected in parallel with the expansion valve, so that the condition that the expansion valve is over throttled due to small superheat degree change is avoided when a defrosting mode is started, high-temperature and high-pressure gas pressed out by the compressor can fully flow through the evaporator, and the quick defrosting effect is realized.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to an air cooler hot fluorine defrosting and refrigerating cycle system.
Background
In the environment of a refrigeration house and the like needing an air cooler, an evaporator is easy to frost during a refrigeration cycle, a defrosting mode which is often adopted after the evaporator frosts has two modes of electric heating auxiliary defrosting and heat pump defrosting, the heat pump defrosting has the advantages of low power consumption, high defrosting speed, safety, reliability and the like, when the heat pump defrosts, a system utilizes a four-way reversing valve to mutually convert the functions of an original evaporator and a condenser so as to realize the heat pump cycle, a refrigerant in the evaporator (namely a condenser during the refrigeration cycle) during the heat pump cycle absorbs heat from an environment medium (namely air), the pressure of the refrigerant is increased by a compressor to reach the condenser (namely the evaporator during the refrigeration cycle), and the frost formed on the evaporator is thawed by utilizing condensation heat release of the refrigerant under high pressure.
Chinese patent publication No. CN108759210A discloses a defrosting system based on an air source heat pump, which has the technical essential that: the system comprises a compressor, a four-way valve, a condenser, an expansion valve, an evaporator, a liquid storage gas-liquid separator, a first one-way valve, a second one-way valve and a second electromagnetic valve; wherein, the outlet of the compressor is divided into two branches, one branch is connected with the four-way valve, and the other branch is connected with the hot gas inlet pipe of the liquid accumulator separator; one path of the second port of the condenser is connected with a first one-way valve, and the other path of the second port of the condenser is connected with a liquid supply inlet pipe of the liquid storage gas-liquid separator; the inlet of the compressor is connected with the suction gas outlet pipe of the liquid storage gas-liquid separator; the four-way valve is respectively connected with the evaporator, the air suction inlet pipe of the liquid storage gas-liquid separator, the hot gas outlet pipe of the liquid storage gas-liquid separator, the outlet of the compressor and the first port of the condenser; the first one-way valve is respectively connected with the second port of the condenser, the liquid supply inlet pipe of the liquid storage gas-liquid separator and the second one-way valve; the second one-way valve is respectively connected with the first one-way valve, a liquid supply outlet pipe of the liquid accumulator separator and the expansion valve; the expansion valve is respectively connected with the first one-way valve, the second one-way valve and the evaporator.
According to the scheme, the problem that after the compressor is started and enters a defrosting mode, the refrigerant originally accumulated in the condenser also enters the compressor and is prone to severe liquid impact is solved, however, an expansion valve is usually arranged in a refrigeration system and is generally installed between a liquid storage device and an evaporator, the refrigerant at medium temperature and high pressure can be throttled into low-temperature and low-pressure wet steam, then the refrigerant absorbs heat in the evaporator to achieve a refrigeration effect, the expansion valve controls the flow of the valve through the change of the superheat degree at the tail end of the evaporator, when the refrigeration mode is converted into a defrosting mode, the change of the superheat degree is small, the condition that the expansion valve is throttled too much is caused, and the defrosting effect is further influenced.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
The present invention is directed to solving the above problems and providing an air cooler hot fluorine defrosting and refrigeration cycle system.
The technical purpose of the invention is realized by the following technical scheme: a hot fluorine defrosting and refrigerating cycle system of an air cooler comprises a compressor, a four-way valve, a condenser, a two-way liquid storage device, an expansion valve, a gas-liquid separator and an evaporator;
the outlet of the compressor is connected with one interface of a four-way valve through a pipeline, the other three interfaces of the four-way valve are respectively connected with the first port of the condenser, the third port of the evaporator and the air inlet pipe of the gas-liquid separator, the air outlet pipe of the gas-liquid separator is connected with the inlet of the compressor through a pipeline, the second port of the condenser is connected with the first liquid storage port of the bidirectional liquid storage device through a pipeline, a first one-way valve is arranged on the pipeline between the condenser and the bidirectional liquid storage device, the flow direction of the first one-way valve is from the condenser to the two-way liquid storage device, the first one-way valve is connected with a flow regulating valve in parallel, a second liquid storage port of the bidirectional liquid storage device is connected with an expansion valve through a pipeline, the expansion valve is connected with a fourth port of the evaporator through a pipeline, the expansion valve is connected in parallel with a second one-way valve, and the flow direction of the second one-way valve is from the evaporator to the two-way liquid storage device.
The invention is further configured to: and a filter, an electromagnetic valve and a liquid sight lens are sequentially arranged on the pipeline between the two-way liquid storage device and the expansion valve, one end of the second one-way valve is connected with the expansion valve, and the other end of the second one-way valve is connected with the inflow end of the filter.
The invention is further configured to: in the refrigeration mode, the flow regulating valve and the second one-way valve are closed, the first one-way valve and the electromagnetic valve are opened, the refrigerant flows out from the outlet of the compressor, flows into the condenser through the four-way valve for heat exchange, flows out of the condenser, enters the two-way liquid storage device through the first one-way valve, flows out of the two-way liquid storage device, passes through the filter and the expansion valve, enters the evaporator from the third port of the evaporator, evaporates in the evaporator and absorbs heat, and then returns to the compressor through the four-way valve and the gas-liquid separator.
The invention is further configured to: when in the defrosting mode, the first one-way valve and the electromagnetic valve are closed, the flow regulating valve and the second one-way valve are opened, the refrigerant flows out from the outlet of the compressor, passes through the four-way valve and flows into the evaporator from the fourth port of the evaporator to release heat, then enters the condenser through the two-way liquid storage device and the flow regulating valve to be evaporated and absorb heat, flows out of the condenser and then enters the gas-liquid separator through the four-way valve, and finally returns to the compressor.
The invention is further configured to: an oil separator is connected between the compressor and the four-way valve, an air inlet of the oil separator is connected with an outlet of the compressor through a pipeline, and an air outlet of the oil separator is connected with the four-way valve through a pipeline.
The invention is further configured to: the bottom fixedly connected with water collector of evaporimeter, the outer bottom surface fixedly connected with heat conduction coil pipe of water collector, heat conduction coil pipe's outside fixedly connected with shell body, it has the heat preservation to fill between heat conduction coil pipe and the shell body.
The invention is further configured to: the third port of the evaporator is communicated with the inlet of the heat-conducting coil pipe through a pipeline, and the fourth port of the evaporator is communicated with the outflow of the heat-conducting coil pipe through a pipeline.
In conclusion, the invention has the following beneficial effects:
according to the invention, the second one-way valve is connected in parallel with the expansion valve, when the refrigeration mode is converted into the defrosting mode, the condition that the expansion valve has overlarge throttle due to small superheat degree change is avoided, so that high-temperature and high-pressure gas extruded by the compressor can fully and quickly flow through the evaporator, the quick defrosting effect is realized, the defrosting time is shortened, the effective and stable switching between the refrigeration mode and the hot fluorine defrosting mode can be realized, meanwhile, the pipelines used in the refrigeration mode and the hot fluorine defrosting mode are basically the same, only two valves are additionally connected in parallel, namely, one set of pipeline is used for realizing the switching between the two modes, the unnecessary use of the pipeline is greatly reduced, and the complexity of the system is effectively reduced.
Drawings
FIG. 1 is a first schematic structural diagram of an air cooler in a cooling mode of a hot fluorine defrosting and cooling cycle system according to the present invention;
FIG. 2 is a first schematic structural diagram of an air cooler in a defrosting mode of a hot-fluorine defrosting and refrigerating cycle system according to the present invention;
FIG. 3 is a schematic structural view of a water pan in the hot fluorine defrosting and refrigerating cycle system of the air cooler according to the present invention;
FIG. 4 is a schematic structural diagram of a heat-conducting coil in an air-cooler hot-fluorine defrosting and refrigerating cycle system according to the present invention;
FIG. 5 is a second schematic structural view illustrating a cooling mode of an air cooler hot fluorine defrosting and cooling cycle system according to the present invention;
fig. 6 is a structural schematic diagram of a second structure of an air cooler in a defrosting mode in a hot-fluorine defrosting and refrigerating cycle system, which mainly embodies defrosting treatment on an evaporator and a water pan.
Reference numerals: 1. a compressor; 101. an outlet; 102. an inlet; 2. an oil separator; 201. an air inlet; 202. an air outlet; 3. a four-way valve; 301. an interface; 4. a condenser; 401. a first port; 402. a second port; 5. a bidirectional reservoir; 501. a first reservoir port; 502. a second reservoir port; 6. an expansion valve; 7. a gas-liquid separator; 701. an air inlet pipe; 702. an air outlet pipe; 8. an evaporator; 801. a third port; 802. a fourth port; 9. a pipeline; 10. a first check valve; 11. a flow regulating valve; 12. a second one-way valve; 13. a filter; 14. an electromagnetic valve; 15. a liquid viewing mirror; 16. a water pan; 17. a heat conducting coil; 18. an outer housing; 19. and (7) an insulating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, an air cooler hot fluorine defrosting and refrigerating cycle system includes a compressor 1, an oil separator 2, a four-way valve 3, a condenser 4, a two-way liquid reservoir 5, an expansion valve 6, a gas-liquid separator 7 and an evaporator 8;
the outlet 101 of the compressor 1 is connected with the air inlet 201 of the oil separator 2 through a pipeline 9, the air outlet 202 of the oil separator 2 is connected with one interface 301 of the four-way valve 3, the oil separator 2 can separate lubricating oil in high-pressure steam discharged by the compressor 1 to ensure that the system can safely and efficiently operate, the other three interfaces 301 of the four-way valve 3 are respectively connected with a first port 401 of the condenser 4, a third port 801 of the evaporator 8 and an air inlet pipe 701 of the gas-liquid separator 7, an air outlet pipe 702 of the gas-liquid separator 7 is connected with the inlet 102 of the compressor 1 through the pipeline 9, a second port 402 of the condenser 4 is connected with a first liquid storage port 501 of the two-way liquid storage device 5 through the pipeline 9, a first one-way valve 10 is installed on the pipeline 9 between the condenser 4 and the two-way liquid storage device 5, the flow direction of the first one-way valve 10 flows from the condenser 4 to the two-, the flow regulating valve 11 can be a pneumatic flow regulating ball valve of the germany, popular brand, the second liquid storage port 502 of the bidirectional liquid storage device 5 is connected with the expansion valve 6 through the pipeline 9, the expansion valve 6 is connected with the fourth port 802 of the evaporator 8 through the pipeline 9, the third port 801 and the fourth port 802 of the evaporator 8 are interfaces at both ends of a heat exchanger in the evaporator 8, the expansion valve 6 is connected with a second one-way valve 12 in parallel, the flow direction of the second one-way valve 12 flows from the evaporator 8 to the bidirectional liquid storage device 5, a filter 13, an electromagnetic valve 14 and a liquid viewing mirror 15 are sequentially installed on the pipeline 9 between the bidirectional liquid storage device 5 and the expansion valve 6, the filter 13 can be a T-shaped pipeline filter, one end of the second one-way valve 12 is connected with the expansion valve 6, and the other end of the second one-way valve 12 is connected;
bottom fixedly connected with water collector 16 of evaporimeter 8, water collector 16's outer bottom surface fixedly connected with heat conduction coil pipe 17, heat conduction coil pipe 17 adopts the copper pipe, heat conduction coil pipe 17's cross-section is D shape, heat conduction coil pipe 17's outside fixedly connected with shell body 18, it has heat preservation 19 to fill between heat conduction coil pipe 17 and the shell body 18, cold-proof layer 19 adopts the polyurethane material, can play thermal-insulated heat preservation effect, third port 801 of evaporimeter 8 communicates in heat conduction coil pipe 17's import department through pipeline 9, fourth port 802 of evaporimeter 8 communicates in heat conduction coil pipe 17's outflow department through pipeline 9, be provided with the control valve on the pipeline 9 between the fourth port 802 of evaporimeter 8 and heat conduction coil pipe 17's outflow department.
In the cooling mode, the control valve is in a closed state, the flow control valve 11 and the second check valve 12 are closed, the first check valve 10 and the solenoid valve 14 are opened, the refrigerant flows out from the outlet 101 of the compressor 1, flows into the condenser 4 through the four-way valve 3 to exchange heat, flows out of the condenser 4, enters the bidirectional liquid storage device 5 through the first check valve 10, flows out of the bidirectional liquid storage device 5, passes through the filter 13 and the expansion valve 6, enters the evaporator 8 from the third port 801 of the evaporator 8, evaporates in the evaporator 8, absorbs heat, and returns to the compressor 1 through the four-way valve 3 and the gas-liquid separator 7.
In the defrosting mode, the control valve is in an open state, the first check valve 10 and the electromagnetic valve 14 are simultaneously closed, the flow regulating valve 11 and the second check valve 12 are opened, the refrigerant flows out from the outlet 101 of the compressor 1, passes through the four-way valve 3, flows into the evaporator 8 from the fourth port 802 of the evaporator 8 to release heat, flows into the heat conducting coil 17 at the inlet of the heat conducting coil 17 to release heat, then enters the condenser 4 through the two-way liquid storage device 5 and the flow regulating valve 11 to evaporate and absorb heat, flows out of the condenser 4, enters the gas-liquid separator 7 through the four-way valve 3, and finally returns to the compressor 1, wherein the first check valve 10 and the second check valve 12 can be of a spring type or a gravity type.
When in use, refrigerant is filled in the refrigeration cycle system, when in a refrigeration mode, the flow control valve 11 and the second one-way valve 12 are closed, the first one-way valve 10 and the electromagnetic valve 14 are opened, refrigerant steam enters the oil separator 2 after the pressure of the compressor 1 is raised, the oil separator 2 separates lubricating oil in high-pressure refrigerant steam discharged by the compressor 1, the lubricating oil enters the condenser 4 through the four-way valve 3, gas refrigerant is subjected to heat release and is condensed into liquid refrigerant, the liquid refrigerant flows into the two-way reservoir 5 through the first one-way valve 10, the two-way reservoir 5 can adapt to the requirement of the evaporator 8 for the supply quantity according to the change, and the liquid outlet pipe is inserted under the liquid level, so that the refrigerant steam and the non-condensable gas at the high-pressure side can be prevented from entering the low-pressure side and can be used as a liquid seal between the high-pressure side and, The liquid viewing mirror 15 is throttled at the expansion valve 6 and then enters the evaporator 8, the refrigerant is evaporated and absorbs heat in the evaporator 8 to become low-temperature and low-pressure steam, the refrigerant steam enters the gas-liquid separator 7 after reversing through the four-way valve 3, the refrigerant finally returns to the compressor 1 after gas-liquid separation is carried out by the gas-liquid separator 7, and accordingly circulation refrigeration is carried out repeatedly.
When a temperature sensor in an evaporator 8 senses that the temperature is lower than a set value, a defrosting mode is started, the evaporator 8 at the moment is equivalent to a condenser 4 in a refrigerating mode, the condenser 4 at the moment is equivalent to the evaporator 8 in the refrigerating mode, a first check valve 10 and an electromagnetic valve 14 are closed, a flow regulating valve 11 and a second check valve 12 are opened, a four-way valve 3 is reversed, refrigerant steam enters an oil separator 2 after the pressure of the refrigerant steam is increased by a compressor 1, the oil separator 2 separates lubricating oil in high-pressure refrigerant steam discharged by the compressor 1, then the refrigerant steam enters the evaporator 8 through the four-way valve 3 and exchanges heat, so that gas refrigerant is subjected to heat release and condensation to form liquid refrigerant, the released condensation heat can dissolve frost condensed on the evaporator 8 in the refrigerating mode, meanwhile, the high-pressure refrigerant steam can flow into a heat conducting coil 17 to release heat, and the bottom of a water tray 16 is heated, the frost of the water pan 16 is melted, the heat-released refrigerant enters the two-way liquid storage device 5 through the second one-way valve 12, the condition that the throttle of the expansion valve 6 is too large due to small change of superheat degree can be avoided, high-temperature and high-pressure gas extruded by the compressor 1 can fully and quickly flow through the evaporator 8, the quick defrosting effect is realized, the defrosting time is shortened, the effective and stable switching between a refrigeration mode and a hot fluorine defrosting mode can be realized, the refrigerant coming out of the two-way liquid storage device 5 enters the condenser 4 through the flow regulating valve 11, enters the gas-liquid separator 7 under the reversing action of the four-way valve 3, the liquid state and the gas state of the refrigerant are basically and completely separated through the gas-liquid separator 7, the gas refrigerant is sucked through the inlet 102 of the compressor 1, the service life of the compressor 1 is prolonged, when the temperature sensor in the evaporator 8 senses that the temperature is higher than a set value, and starting the refrigeration mode again and repeatedly.
The pipelines used in the refrigeration mode and the hot fluorine defrosting mode are basically the same, and only two valves are additionally connected in parallel, namely one set of pipeline is used for realizing the switching of the two modes, so that unnecessary pipeline use is greatly reduced, and the complexity of the system is effectively reduced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. The utility model provides an air-cooler hot fluorine defrosting and refrigeration cycle system which characterized in that: comprises a compressor (1), a four-way valve (3), a condenser (4), a two-way liquid storage device (5), an expansion valve (6), a gas-liquid separator (7) and an evaporator (8);
an outlet (101) of the compressor (1) is connected with one interface (301) of a four-way valve (3) through a pipeline (9), the other three interfaces (301) of the four-way valve (3) are respectively connected with a first port (401) of a condenser (4), a third port (801) of an evaporator (8) and an air inlet pipe (701) of a gas-liquid separator (7), an air outlet pipe (702) of the gas-liquid separator (7) is connected with an inlet (102) of the compressor (1) through the pipeline (9), a second port (402) of the condenser (4) is connected with a first liquid storage port (501) of a bidirectional liquid storage device (5) through the pipeline (9), a first one-way valve (10) is installed on the pipeline (9) between the condenser (4) and the bidirectional liquid storage device (5), and the flowing direction of the first one-way valve (10) flows from the condenser (4) to the bidirectional liquid storage device (5), first check valve (10) are parallelly connected with flow control valve (11), second liquid storage mouth (502) of two-way reservoir (5) pass through pipeline (9) and connect expansion valve (6), expansion valve (6) pass through fourth port (802) of pipeline (9) connection evaporimeter (8), expansion valve (6) are parallelly connected with second check valve (12), the flow direction of second check valve (12) is from evaporimeter (8) flow direction two-way reservoir (5).
2. An air-cooler hot-fluorine defrosting and refrigerating cycle system according to claim 1, characterized in that: be located between two-way reservoir (5) and expansion valve (6) install filter (13), solenoid valve (14) and look liquid mirror (15) on pipeline (9) in proper order, expansion valve (6) are connected to the one end of second check valve (12), the inflow end of filter (13) is connected to the other end of second check valve (12).
3. An air-cooler hot-fluorine defrosting and refrigerating cycle system according to claim 2, characterized in that: in a refrigerating mode, the flow regulating valve (11) and the second one-way valve (12) are closed, the first one-way valve (10) and the electromagnetic valve (14) are opened, refrigerant flows out from an outlet (101) of the compressor (1), flows into the condenser (4) through the four-way valve (3) for heat exchange, flows out of the condenser (4), enters the two-way liquid storage device (5) through the first one-way valve (10), flows out of the two-way liquid storage device (5), passes through the filter (13) and the expansion valve (6) and enters the evaporator (8) from a third port (801) of the evaporator (8), and after the refrigerant is evaporated and absorbs heat in the evaporator (8), the refrigerant returns to the compressor (1) through the four-way valve (3) and the gas-liquid separator.
4. An air-cooler hot-fluorine defrosting and refrigerating cycle system according to claim 2, characterized in that: in the defrosting mode, the first one-way valve (10) and the electromagnetic valve (14) are closed, the flow regulating valve (11) and the second one-way valve (12) are opened, refrigerant flows out from an outlet (101) of the compressor (1), flows into the evaporator (8) from a fourth port (802) of the evaporator (8) through the four-way valve (3) to release heat, then flows into the condenser (4) through the two-way liquid storage device (5) and the flow regulating valve (11) to evaporate and absorb heat, flows out of the condenser (4), enters the gas-liquid separator (7) through the four-way valve (3), and finally returns to the compressor (1).
5. An air-cooler hot-fluorine defrosting and refrigerating cycle system according to claim 1, characterized in that: an oil separator (2) is connected between the compressor (1) and the four-way valve (3), an air inlet (201) of the oil separator (2) is connected with an outlet (101) of the compressor (1) through a pipeline (9), and an air outlet (202) of the oil separator (2) is connected with the four-way valve (3) through the pipeline (9).
6. An air-cooler hot-fluorine defrosting and refrigerating cycle system according to claim 1, characterized in that: the bottom fixedly connected with water collector (16) of evaporimeter (8), the outer bottom surface fixedly connected with heat conduction coil pipe (17) of water collector (16), the outside fixedly connected with shell body (18) of heat conduction coil pipe (17), it has heat preservation (19) to fill between heat conduction coil pipe (17) and shell body (18).
7. An air-cooler hot-fluorine defrosting and refrigerating cycle system according to claim 6, characterized in that: the third port (801) of the evaporator (8) is communicated with the inlet of the heat conduction coil (17) through a pipeline (9), and the fourth port (802) of the evaporator (8) is communicated with the outlet of the heat conduction coil (17) through the pipeline (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032572.3A CN111219914A (en) | 2020-01-13 | 2020-01-13 | Hot fluorine defrosting and refrigerating cycle system of air cooler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032572.3A CN111219914A (en) | 2020-01-13 | 2020-01-13 | Hot fluorine defrosting and refrigerating cycle system of air cooler |
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| CN111219914A true CN111219914A (en) | 2020-06-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502959A (en) * | 2020-12-04 | 2021-03-16 | 青岛万宝压缩机有限公司 | Compressor testing device and method |
Citations (6)
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