CN110173910A - A kind of Gas-supplying enthalpy-increasing refrigeration system and air conditioner - Google Patents
A kind of Gas-supplying enthalpy-increasing refrigeration system and air conditioner Download PDFInfo
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- CN110173910A CN110173910A CN201910567086.9A CN201910567086A CN110173910A CN 110173910 A CN110173910 A CN 110173910A CN 201910567086 A CN201910567086 A CN 201910567086A CN 110173910 A CN110173910 A CN 110173910A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 26
- 230000001502 supplementing effect Effects 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 description 25
- 230000006835 compression Effects 0.000 description 18
- 238000007906 compression Methods 0.000 description 18
- 230000001105 regulatory effect Effects 0.000 description 16
- 238000001704 evaporation Methods 0.000 description 14
- 230000008020 evaporation Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 9
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/005—Compression machines, plants or systems with non-reversible cycle of the single unit 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
-
- 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
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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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)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention provides a kind of Gas-supplying enthalpy-increasing refrigeration system and air conditioner, the refrigeration system includes: including compressor, indoor heat exchanger and outdoor heat exchanger, flash device, flash device includes the first shwoot chamber and the second shwoot chamber, the gas vent of first shwoot chamber is connected to the first gas supplementing opening of compressor by the first connecting pipeline, liquid or gas-liquid mixture after first shwoot chamber shwoot enter in the second shwoot chamber after third throttling set, the gas vent of second shwoot chamber is connected to the second gas supplementing opening of compressor by the second connecting pipeline, and first is provided with the first control valve on connecting pipeline, the second control valve is provided on second connecting pipeline.The arrangement for significantly reducing pipeline through the invention, reduces line loss, reduces restriction loss, moreover it is possible to improve flexibility and adaptability and versatility when for different operating conditions, unit heats that refrigerating capacity is high, efficiency is horizontal high.
Description
Technical field
The invention belongs to air-conditioning technical fields, and in particular to a kind of Gas-supplying enthalpy-increasing refrigeration system and air conditioner.
Background technique
The patent of Patent No. CN103954067B discloses a kind of multistage tonifying Qi refrigerating plant, but this multistage tonifying Qi system
System needs three flash evaporation series connection to come together to realize multistage tonifying Qi (as shown in Fig. 1 in attached drawing), causes system flow path complicated, throttling
Loss is big, and heating capacity and efficiency level substantially reduce.The patent of Patent No. CN204027104U discloses a kind of flash evaporation
With the air-conditioning (as shown in Fig. 2 in attached drawing) with the flash evaporation, the tonifying Qi demand of compound compressor, but the patent institute can satisfy
The system of description can only realize a kind of this endless form of multi-stage compression, lead to system lacks flexibility.
Since that there are the line loss of system is big, restriction loss is big for multistage tonifying Qi refrigerating plant in the prior art；System
It can only realize a kind of this endless form of multi-stage compression, lack flexibility and the adaptability for different operating conditions, unit is caused to heat
Refrigerating capacity is low, the horizontal low technical problem of efficiency, therefore researching and designing of the present invention goes out a kind of Gas-supplying enthalpy-increasing refrigeration system and sky
Adjust device.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that multistage tonifying Qi refrigerating plant in the prior art is overcome to exist not
It can solve that line loss is big and the defect of the bad adaptability for different operating conditions simultaneously, to provide a kind of Gas-supplying enthalpy-increasing refrigeration
System and air conditioner.
The present invention provides a kind of Gas-supplying enthalpy-increasing refrigeration system comprising:
Including compressor, indoor heat exchanger and outdoor heat exchanger, and in the indoor heat exchanger and the outdoor heat exchanger
Between be additionally provided with flash device, the flash device includes the first shwoot chamber and the second shwoot chamber, the first shwoot chamber
Gas vent is connected to the liquid after the first gas supplementing opening of the compressor, the first shwoot chamber shwoot by the first connecting pipeline
Body or gas-liquid mixture enter in the second shwoot chamber after third throttling set, the gas vent of the second shwoot chamber
It is connected to the second gas supplementing opening of the compressor by the second connecting pipeline, and is provided with the first control on first connecting pipeline
Valve processed is provided with the second control valve on second connecting pipeline, appointing in first control valve and second control valve
One can be closed or opened or be simultaneously closed off or open by control.
Preferably,
First control valve is solenoid valve and/or second control valve is solenoid valve.
Preferably,
The flash device further includes third shwoot chamber and the 4th throttling set, the liquid after the second shwoot chamber shwoot
Or gas-liquid mixture enters in the third shwoot chamber after the 4th throttling set, the third shwoot chamber passes through third
Connecting pipeline is connected to the third gas supplementing opening of the compressor, and is provided with third control valve on the third connecting pipe.
Preferably,
The third control valve is solenoid valve；And/or the third throttling set is electric expansion valve, and/or, it is described
4th throttling set is electric expansion valve.
Preferably,
First gas supplementing opening is high pressure cylinder gas supplementing opening, and second gas supplementing opening is middle pressure chamber gas supplementing opening, and the third is mended
Port is low pressure (LP) cylinder gas supplementing opening.
Preferably,
Further include controller, the controller respectively with first control valve, second control valve, the third control
Valve, the third throttling set and the 4th throttling set processed are electrically connected.
Preferably,
Be additionally provided with first throttling device between the indoor heat exchanger and the flash device, the outdoor heat exchanger with
Second throttling device is additionally provided between the flash device.
Preferably,
The first throttling device is electric expansion valve；And/or the second throttling device is electric expansion valve.
Preferably,
When including controller, the controller also respectively with the first throttling device and the second throttling device into
Row electrical connection.
The present invention also provides a kind of air conditioners comprising preceding described in any item Gas-supplying enthalpy-increasing refrigeration systems.
A kind of Gas-supplying enthalpy-increasing refrigeration system provided by the invention and air conditioner have the following beneficial effects:
The present invention, can be to system by the way that individual flash device is arranged, two or more shwoot chambers are arranged inside it
The effect of multiple stage flash evaporation and Gas-supplying enthalpy-increasing is carried out in cooling system to compressor, raising is freezed or heating efficiency, and relative to
Make flash device be made into integral structure for CN103954067B, only includes several tonifying Qi connections corresponding with shwoot chamber
Pipeline, the air inlet pipeline of flash device and outlet tube road, therefore the arrangement of pipeline is significantly reduced, line loss is reduced,
Reduce restriction loss；And it by respectively arranged control valve on the first and second connecting pipelines, can be mended as needed to pre-
The compressor cavity of gas increasing enthalpy connect and tonifying Qi, by changing the flow of air supply of different gas tonifying branches, it can be achieved that single-stage pressure
Compression system, Two-stage Compression system, three stage compression system and level Four compressibility mutually switch, only relative to CN204027104U
It is able to achieve for a kind of this endless form of multi-stage compression, the present invention effectively improves flexibility and suitable when for different operating conditions
Answering property and versatility, it is horizontal high that unit heats refrigerating capacity height, efficiency.
Detailed description of the invention
Fig. 1 is the structure chart in prior art patent CN103954067B；
Fig. 2 is the structure chart in prior art patent CN204027104U；
Fig. 3 is the structural schematic diagram of multistage Gas-supplying enthalpy-increasing refrigeration system of the invention；
Fig. 4 is the pressure-enthalpy chart of multistage Gas-supplying enthalpy-increasing refrigeration system of the invention.
Appended drawing reference indicates in figure are as follows:
1, compressor；11, the first gas supplementing opening；12, the second gas supplementing opening；13, third gas supplementing opening；2, indoor heat exchanger；3, room
External heat exchanger；4, flash device；41, the first shwoot chamber；42, the second shwoot chamber；43, third shwoot chamber；51, the first communicating pipe
Road；52, the second connecting pipeline；53, third connecting pipe；61, first throttling device；62, second throttling device；63, third section
Flow device；64, the 4th throttling set；71, the first control valve；72, the second control valve；73, third control valve；8, controller；9,
Gas-liquid separator.
Specific embodiment
As shown in Figure 3-4, the present invention provides a kind of Gas-supplying enthalpy-increasing refrigeration system comprising:
It is changed including compressor 1, indoor heat exchanger 2 and outdoor heat exchanger 3, and in the indoor heat exchanger 2 and the outdoor
Flash device 4 is additionally provided between hot device 3, it includes the first shwoot chamber that the flash device 4, which includes more than two shwoot chambers,
41 and the second shwoot chamber 42, the quantity of gas supplementing opening of quantity and compressor of shwoot chamber is corresponding, the gas of the first shwoot chamber 41
Body outlet is connected to the first gas supplementing opening 11 of the compressor 1,41 shwoot of the first shwoot chamber by the first connecting pipeline 51
Liquid or gas-liquid mixture afterwards enters in the second shwoot chamber 42 after third throttling set 63, the second shwoot chamber
42 gas vent is connected to the second gas supplementing opening 12 of the compressor 1, and first connection by the second connecting pipeline 52
It is provided with the first control valve 71 on pipeline 51, the second control valve 72, first control are provided on second connecting pipeline 52
Any of valve 71 processed and second control valve 72 can be closed or opened or be simultaneously closed off or open by control.
The present invention, can be to system by the way that individual flash device is arranged, two or more shwoot chambers are arranged inside it
The effect of multiple stage flash evaporation and Gas-supplying enthalpy-increasing is carried out in cooling system to compressor, raising is freezed or heating efficiency, and relative to
Make flash device be made into integral structure for CN103954067B, only includes several tonifying Qi connections corresponding with shwoot chamber
Pipeline, the air inlet pipeline of flash device and outlet tube road, therefore the arrangement of pipeline is significantly reduced, line loss is reduced,
Reduce restriction loss；And it by respectively arranged control valve on the first and second connecting pipelines, can be mended as needed to pre-
The compressor cavity of gas increasing enthalpy connect and tonifying Qi, by changing the flow of air supply of different gas tonifying branches, it can be achieved that single-stage pressure
Compression system, Two-stage Compression system, three stage compression system and level Four compressibility mutually switch, only relative to CN204027104U
It is able to achieve for a kind of this endless form of multi-stage compression, the present invention effectively improves flexibility and suitable when for different operating conditions
Answering property and versatility, it is horizontal high that unit heats refrigerating capacity height, efficiency.
Preferably,
First control valve 71 is preferred solenoid valve (can also be mechanical valves such as pressure valve etc.) and/or described second
Control valve 72 is solenoid valve (ibid).This is the preferred constructive form of the first control valve and the second control valve of the invention, is passed through
Solenoid valve can be realized intelligent control and the purpose by being electrically connected with the controller automatic control.
Preferably,
The flash device 4 further includes third shwoot chamber 43 and the 4th throttling set 64,42 shwoot of the second shwoot chamber
Liquid or gas-liquid mixture afterwards enters in the third shwoot chamber 43 after the 4th throttling set 64, and the third is dodged
Hair chamber 43 is connected to the third gas supplementing opening 13 of the compressor 1, and the third connecting pipe 53 by third connecting pipe 53
On be provided with third control valve 73.This is the further preferred structure type of flash device of the invention, that is, further includes and second
The third shwoot chamber of shwoot chamber connection further can carry out shwoot increasing enthalpy to refrigerant by third shwoot chamber, reduce and press
Power further increases the ability of Gas-supplying enthalpy-increasing.
Preferably,
The third control valve 73 is solenoid valve；And/or the third throttling set 63 is electric expansion valve, and/or,
4th throttling set 64 is electric expansion valve.This is third control valve of the invention, third throttling set and the 4th throttling
The preferred constructive form of device can be realized intelligent control and the mesh by being electrically connected with the controller automatic control by solenoid valve
, electric expansion valve is set as by the third and fourth throttling set, effective reducing pressure by regulating flow can be played the role of, to realize
Multistage Gas-supplying enthalpy-increasing provides condition.
Preferably,
First gas supplementing opening 11 is high pressure cylinder gas supplementing opening, and second gas supplementing opening 12 is middle pressure chamber gas supplementing opening, described the
Three gas supplementing openings 13 are low pressure (LP) cylinder gas supplementing opening.Such structure type can realize three-level Gas-supplying enthalpy-increasing to compressor, improve heating
Refrigerating efficiency.As shown in Figure 4, wherein in flash evaporation comprising two electric expansion valves, comprising an inlet, a liquid outlet,
Three gas supplementing openings；Compressor arrangement includes an air entry, an exhaust outlet, a low pressure (LP) cylinder gas supplementing opening, an intermediate cavity benefit
Port and a high pressure cylinder gas supplementing opening.
Preferably,
Further include controller 8, the controller 8 respectively with first control valve 71, second control valve 72, described
Third control valve 73, the third throttling set 63 and the 4th throttling set 64 are electrically connected.By the way that controller is arranged
Control action can be carried out to multiple control valves and multiple throttling sets, can be set as needed in single stage compress system, double
Mutually switch between grade compressibility, three stage compression system and level Four compressibility, improves adaptability and versatility.
Preferably,
First throttling device 61, the outdoor heat exchange are additionally provided between the indoor heat exchanger 2 and the flash device 4
Second throttling device 62 is additionally provided between device 3 and the flash device 4.By being set between indoor heat exchanger and flash device
The first throttling device set can carry out reducing pressure by regulating flow effect to the refrigerant before entrance flash device or go out to from flash device
Refrigerant before entering the room heat exchanger after coming carries out reducing pressure by regulating flow, by being arranged between outdoor heat exchanger and flash device
Second throttling device can to from flash device come out after enter outdoor heat exchanger before refrigerant carry out reducing pressure by regulating flow or
Reducing pressure by regulating flow effect is carried out into the refrigerant before flash device, realizes the effect of the reducing pressure by regulating flow of entire refrigeration system.
Preferably,
The first throttling device 61 is electric expansion valve；And/or the second throttling device 62 is electric expansion valve.
This is the preferred constructive form of the first and second throttling sets of the invention, can be realized the effect of reducing pressure by regulating flow.
Preferably,
When including controller 8, the controller 8 is also filled with the first throttling device 61 and second throttling respectively
62 are set to be electrically connected.Controller is electrically connected with the first and second throttling sets respectively can play each throttling set certainly
It is dynamic to control to carry out the effect of reducing pressure by regulating flow, improve automation and intelligence.
The present invention also provides a kind of air conditioners comprising preceding described in any item multistage Gas-supplying enthalpy-increasing refrigeration systems.
The present invention makes flash device be made into integral structure for CN103954067B, only include it is several with
The corresponding tonifying Qi connecting pipeline of shwoot chamber, the air inlet pipeline of flash device and outlet tube road, therefore significantly reduce pipeline
Arrangement reduces line loss, reduces restriction loss；And pass through respectively arranged control on the first and second connecting pipelines
Valve can connect simultaneously tonifying Qi by the compressor cavity to pre- Gas-supplying enthalpy-increasing as needed, pass through and change different gas tonifying branches
Flow of air supply is, it can be achieved that single stage compress system, Two-stage Compression system, three stage compression system and level Four compressibility are mutually cut
It changes, for CN204027104U can only realize a kind of this endless form of multi-stage compression, the present invention effectively improves spirit
Activity and adaptability and versatility when for different operating conditions, unit heat that refrigerating capacity is high, efficiency is horizontal high.
As shown in figure 3, compressor, first throttling device 61, second throttling device 62, the first control valve 71, second control
Valve 72, third control valve 73, the third throttling set 63 in flash evaporation, the 4th throttling set 64, indoor and outdoor blower are by control
Device is uniformly controlled.Controller by control the first control valve 71, the second control valve 72, third control valve 73 switch-mode regulation whether
Need Gas-supplying enthalpy-increasing.Third throttling set 63, the 4th throttling set 64 remain the aperture greater than 0.
When the first control valve 71, the second control valve 72, third control valve 73 are all closed, heat pump system is as single-stage pressure
Compression system operation, at this time: the low-pressure gas refrigerant come out from gas-liquid separator is cold by becoming high pressure gas after compressor compresses
Matchmaker, after enter the room heat exchanger condensation heat release be high-pressure liquid refrigerant, flow into shwoot after 61 reducing pressure by regulating flow of first throttling device
Device, the liquid refrigerants after (flash evaporation can be used as fluid reservoir use at this time) shwoot is after 62 reducing pressure by regulating flow of second throttling device through room
External heat exchanger evaporation endothermic is low pressure refrigerant, enters back into gas-liquid separator and is recycled.
When the first control valve 71 opening, the second control valve 72 and the closing of third control valve 73 or the second control valve 72 are beaten
It opens, the first control valve 71 and third control valve 73 are closed or third control valve 73 is opened, the first control valve 71 and second controls
When valve 72 is closed, heat pump system will be run as Two-stage Compression system, at this time: the low-pressure gas refrigerant come out from gas-liquid separator
By becoming pressurized gas refrigerant after compressor compresses, after to enter the room heat exchanger condensation heat release be high-pressure liquid refrigerant, through the
Flash evaporation is flowed into after one throttling set, 61 reducing pressure by regulating flow, the gaseous coolant after shwoot is by the first control valve 71 or the second control
The high pressure cylinder gas supplementing opening or intermediate cavity gas supplementing opening or low pressure (LP) cylinder gas supplementing opening of valve 72 or the entrance compressor of third control valve 73
It is compressed, the liquid refrigerants after shwoot is low pressure through outdoor heat exchanger evaporation endothermic after 62 reducing pressure by regulating flow of second throttling device
Refrigerant is entered back into gas-liquid separator and is recycled.
When the first control valve 71 and the second control valve 72 are opened, third control valve 73 is closed or the first control valve 71 and the
Three control valves 73 opening, the closing of the second control valve 72 or the second control valve 72 and third control valve 73 are opened, the first control valve
When 71 closing, heat pump system is run as three stage compression system, at this time: the low-pressure gas refrigerant come out from gas-liquid separator passes through
After compressor compresses become pressurized gas refrigerant, after enter the room heat exchanger condensation heat release be high-pressure liquid refrigerant, through first segment
Flow into flash evaporation after stream 61 reducing pressure by regulating flow of device, the gaseous coolant after shwoot by the first control valve 71 and the second control valve 72 or
The first control valve of person 71 and third control valve 73 or the second control valve 72 and third control valve 73 enter the high pressure cylinder of compressor
Gas supplementing opening, intermediate cavity gas supplementing opening or high pressure cylinder gas supplementing opening, low pressure (LP) cylinder gas supplementing opening or intermediate cavity gas supplementing opening, low pressure (LP) cylinder gas supplementing opening
It is compressed, the liquid refrigerants after shwoot is low pressure through outdoor heat exchanger evaporation endothermic after 62 reducing pressure by regulating flow of second throttling device
Refrigerant is entered back into gas-liquid separator and is recycled.
When the first control valve 71 and the second control valve 72 and fully open third control valve 73, heat pump system is as level Four
Compressibility operation, at this time: the low-pressure gas refrigerant come out from gas-liquid separator is by becoming high pressure gas after compressor compresses
Refrigerant, after enter the room heat exchanger condensation heat release be high-pressure liquid refrigerant, after 61 reducing pressure by regulating flow of first throttling device flow into dodge
Device is sent out, the gaseous coolant after shwoot passes through the first control valve 71 and the second control valve 72 respectively and third control valve 73 enters compression
High pressure cylinder gas supplementing opening, intermediate cavity gas supplementing opening, the low pressure (LP) cylinder gas supplementing opening of machine are compressed, and the liquid refrigerants after shwoot is through the second throttling
After 62 reducing pressure by regulating flow of device through outdoor heat exchanger evaporation endothermic be low pressure refrigerant, enter back into gas-liquid separator and recycled.System
The pressure-enthalpy chart of system is as shown in figure 4, the digital 101-119 in figure respectively refers to the pressure enthalpy state for refrigerant in each state.
The present invention also provides a kind of control methods of multistage Gas-supplying enthalpy-increasing refrigeration system, as shown in Figures 3 and 4, when needs pair
When high pressure 11 tonifying Qi of gas supplementing opening, the first control valve 71 is opened, when needing centering to press 12 tonifying Qi of gas supplementing opening, opens the second control valve
72, when needing to low pressure 13 tonifying Qi of gas supplementing opening, third control valve 73 is opened, above three control valve can be separately turned on,
It can open simultaneously, optional any one are opened, to carry out targetedly carrying out Gas-supplying enthalpy-increasing to compressor
Effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (10)
1. a kind of Gas-supplying enthalpy-increasing refrigeration system, it is characterised in that: include:
Including compressor (1), indoor heat exchanger (2) and outdoor heat exchanger (3), and in the indoor heat exchanger (2) and the room
It is additionally provided between external heat exchanger (3) flash device (4), the flash device (4) includes that the first shwoot chamber (41) and second dodge
It sends out chamber (42), the gas vent of the first shwoot chamber (41) is connected to the compressor (1) by the first connecting pipeline (51)
The first gas supplementing opening (11), the liquid after the first shwoot chamber (41) shwoot or gas-liquid mixture pass through third throttling set
(63) enter in the second shwoot chamber (42) afterwards, the gas vent of the second shwoot chamber (42) passes through the second connecting pipeline
(52) it is connected to the second gas supplementing opening (12) of the compressor (1), and is provided with the first control on first connecting pipeline (51)
Valve (71) processed is provided with the second control valve (72) on second connecting pipeline (52), first control valve (71) and described
Any of second control valve (72) can be closed or opened or be simultaneously closed off or open by control.
2. Gas-supplying enthalpy-increasing refrigeration system according to claim 1, it is characterised in that:
First control valve (71) is solenoid valve and/or second control valve (72) is solenoid valve.
3. Gas-supplying enthalpy-increasing refrigeration system according to claim 1 or 2, it is characterised in that:
The flash device (4) further includes third shwoot chamber (43) and the 4th throttling set (64), the second shwoot chamber (42)
Liquid or gas-liquid mixture after shwoot enter in the third shwoot chamber (43) after the 4th throttling set (64), institute
State the third gas supplementing opening (13) that third shwoot chamber (43) is connected to the compressor (1) by third connecting pipe (53), and institute
It states and is provided with third control valve (73) on third connecting pipe (53).
4. Gas-supplying enthalpy-increasing refrigeration system according to claim 3, it is characterised in that:
The third control valve (73) is solenoid valve；And/or the third throttling set (63) is electric expansion valve, and/or,
4th throttling set (64) is electric expansion valve.
5. Gas-supplying enthalpy-increasing refrigeration system according to claim 3 or 4, it is characterised in that:
First gas supplementing opening (11) is high pressure cylinder gas supplementing opening, and second gas supplementing opening (12) is middle pressure chamber gas supplementing opening, described the
Three gas supplementing openings (13) are low pressure (LP) cylinder gas supplementing opening.
6. Gas-supplying enthalpy-increasing refrigeration system according to claim 3 or 4, it is characterised in that:
Further include controller (8), the controller (8) respectively with first control valve (71), second control valve (72),
The third control valve (73), the third throttling set (63) and the 4th throttling set (64) are electrically connected.
7. Gas-supplying enthalpy-increasing refrigeration system according to claim 1 to 6, it is characterised in that:
First throttling device (61) are additionally provided between the indoor heat exchanger (2) and the flash device (4), the outdoor is changed
Second throttling device (62) are additionally provided between hot device (3) and the flash device (4).
8. Gas-supplying enthalpy-increasing refrigeration system according to claim 7, it is characterised in that:
The first throttling device (61) is electric expansion valve；And/or the second throttling device (62) is electric expansion valve.
9. Gas-supplying enthalpy-increasing refrigeration system according to claim 7 or 8, it is characterised in that:
When including controller (8), the controller (8) also throttles with the first throttling device (61) and described second respectively
Device (62) is electrically connected.
10. a kind of air conditioner, it is characterised in that: including Gas-supplying enthalpy-increasing refrigeration system of any of claims 1-9.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113776223A (en) * | 2021-10-13 | 2021-12-10 | 广东积微科技有限公司 | Double-enhanced vapor injection refrigeration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113776223A (en) * | 2021-10-13 | 2021-12-10 | 广东积微科技有限公司 | Double-enhanced vapor injection refrigeration system |
| CN113776223B (en) * | 2021-10-13 | 2023-01-24 | 广东积微科技有限公司 | Double-enhanced vapor injection refrigeration system |
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