CN106524610A - Air conditioning system and air conditioner - Google Patents
Air conditioning system and air conditioner Download PDFInfo
- Publication number
- CN106524610A CN106524610A CN201611046309.XA CN201611046309A CN106524610A CN 106524610 A CN106524610 A CN 106524610A CN 201611046309 A CN201611046309 A CN 201611046309A CN 106524610 A CN106524610 A CN 106524610A
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- Prior art keywords
- heat exchanger
- valve
- compressor
- air
- refrigerant
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
Abstract
The invention provides an air conditioning system and an air conditioner. The air conditioning system comprises a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger and a throttling device, wherein a first valve port of the four-way valve is connected with the compressor, a second valve port of the four-way valve is connected with the indoor heat exchanger, and a third valve port of the four-way valve is connected with the outdoor heat exchanger. The air conditioning system further comprises an auxiliary heat exchanger, a flash vessel, a first valve, a defrosting pipeline and a second valve, wherein the auxiliary heat exchanger is connected with the outdoor heat exchanger, the flash vessel is connected with the auxiliary heat exchanger and is connected with the compressor through a first pipeline, the first valve is arranged on the first pipeline, the defrosting pipeline communicates with the four-way valve and the flash vessel, and the second valve is arranged on the defrosting pipeline and controls the flowing state of refrigerant in the defrosting pipeline. Through the technical scheme, the circulation amount of the refrigerant can be increased by opening the second valve located on the defrosting pipeline, the suction capacity of the compressor during defrosting is supplemented, thus, quick defrosting is achieved, the heating effect is strengthened, heat comfort of defrosting is optimized, and the heat exchange efficiency of the whole air conditioning system is improved.
Description
Technical field
The present invention relates to household electrical appliance technical field, in particular to a kind of air-conditioning system and a kind of air-conditioning.
Background technology
With the improvement of people's living standards and the enhancing of awareness of saving energy, with its energy-conservation, control is flexible, easily installs for air-conditioning
The features such as with safeguarding, vast average family is come into, and has increasingly been widely applied.However, under low-temperature condition, due to
Evaporating temperature is caused the heat that refrigerant is absorbed from air to substantially reduce, heats effect than relatively low, the factor such as easy frosting of evaporimeter
Fruit is deteriorated, and affects the using effect of user, often results in the complaint of client.
Therefore, a kind of air-conditioning system how is designed, refrigerant circulation can be increased, the air-breathing of compressor when supplementing defrost
Amount, so as to realize quick defrost, strengthens the effect for heating, optimizes the thermal comfort of defrost, improve changing for whole air-conditioning system
The thermal efficiency becomes technical problem urgently to be resolved hurrily.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
For this purpose, it is an object of the present invention to proposing a kind of air-conditioning system.
Further object is that proposing a kind of air-conditioning.
For achieving the above object, technical scheme according to the first aspect of the invention, a kind of air-conditioning system, including：Compression
Machine, cross valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement, the first valve port of cross valve are connected with compressor, cross valve
The second valve port be connected with indoor heat exchanger, the 3rd valve port of cross valve is connected with outdoor heat exchanger, is also included：Auxiliary heat-exchanging
Device, is connected with outdoor heat exchanger；Flash vessel, is connected with supplementary heat exchanger, and flash vessel is connected with compressor by the first pipeline；The
One valve, on the first pipeline；Defrost pipeline, connection cross valve and flash vessel；Second valve, on defrost pipeline, controls cold
Matchmaker's flow regime in defrost pipeline.
The air-conditioning system of technology according to the present invention scheme, according to compressor exhaust temperature, it can be determined that whether need out
The first valve is opened or closes, when opening the first valve, the gaseous coolant after flash vessel is separated is directly injected in compressor, is improved
The effect of air injection enthalpy-increasing, while the degree of supercooling of system can improve, strengthens the exchange capability of heat of unit, improve air-conditioning system due to
The hypodynamic problem of heat-energy transducer caused by low temperature, so as to improve the heat transfer effect of whole air-conditioning system.Open positioned at defrost pipeline
The second valve can increase refrigerant circulation, the inspiratory capacity of compressor when supplementing defrost, so as to realize quick defrost, strengthens system
Thermal effect, optimizes the thermal comfort of defrost, improves the heat exchange efficiency of whole air-conditioning system.
The air-conditioning system of above-mentioned technical proposal of the invention, can also have following technical characteristic：
According to above-mentioned technical proposal of the present invention, it is preferable that also include：Gas-liquid separator, the entrance of gas-liquid separator and four
4th valve port of port valve is connected, and the outlet of gas-liquid separator is connected with the second air inlet of compressor, refrigerant by cross valve the
Four valve ports flow through gas-liquid separator, flow in compressor.
In the technical scheme, refrigerant enters gas-liquid separator by the 4th valve port of cross valve, by gas-liquid separator stream
Into compressor, compress so as to be absorbed by compressor, it is to avoid liquid refrigerants is directly entered compressor and caused compressor is damaged
Bad problem.
According to above-mentioned technical proposal of the present invention, it is preferable that also include：The 4th mouthful of supplementary heat exchanger the with cross valve the 4th
Valve port is connected；Or the 4th mouthful of supplementary heat exchanger is connected with the outlet of gas-liquid separator, refrigerant flows to gas-liquid point by the 4th mouthful
From the outlet of device, the part refrigerant that the outlet with gas-liquid separator is discharged carries out mixed flow to compressor.
In the technical scheme, the 4th valve port of cross valve is connected with the entrance of gas-liquid separator, as pressure is acted on, cold
Liquid refrigerants is isolated by the entrance that matchmaker flows to gas-liquid separator by the 4th mouthful of supplementary heat exchanger by gas-liquid separator
Come, then gaseous coolant is flowed in compressor, gaseous coolant can strengthen the jeting effect of compressor, improve compressor
Whole capability.Or in cooling mode, can select the 4th mouthful of outlet directly with gas-liquid separator of supplementary heat exchanger
It is connected, the outlet that gaseous coolant flows directly to gas-liquid separator by the 4th mouthful, the gaseous state that the outlet with gas-liquid separator is discharged
Refrigerant carries out mixed flow to compressor.So as to mitigate the loss of gas-liquid separator, the life-span of gas-liquid separator is extended.
A technical scheme of the invention, it is preferable that also include：Second pipeline, connects the first of supplementary heat exchanger
Mouthful with the exhaust outlet of outdoor heat exchanger, refrigerant flow to auxiliary heat-exchanging by the second pipeline from the exhaust outlet discharge of outdoor heat exchanger
The first of device.
In the technical scheme, under refrigeration mode, refrigerant flow to the first of supplementary heat exchanger by the second pipeline, enters
Further it is subcooled after supplementary heat exchanger, improves the degree of supercooling of primary flow path refrigerant, so as to improve the exchange capability of heat of whole air-conditioning system.
A technical scheme of the invention, it is preferable that also include：Flash vessel includes：First interface, with auxiliary heat-exchanging
Second mouthful of device is connected, and refrigerant is flowed out by supplementary heat exchanger, is flowed in flash vessel by first interface；Second interface, by
Three pipelines are connected to indoor heat exchanger, and refrigerant flow to indoor heat exchanger by the second pipeline by flash vessel；3rd interface, is connected to
First air inlet of compressor, refrigerant flow to compressor by flash vessel；4th interface, with the 3rd mouthful of supplementary heat exchanger by the
Four pipelines are connected, and refrigerant flows out to supplementary heat exchanger by flash vessel.
In the technical scheme, under refrigeration mode, refrigerant is flowed out by supplementary heat exchanger, flows into flash vessel by first interface
In, refrigerant is carried out gas-liquid separation by flash vessel, and the gaseous coolant separated is flowed out from the 3rd interface of flash vessel, is ejected into pressure
In contracting machine, strengthen the jeting effect of compressor, improve the whole capability of compressor.The liquid refrigerants separated is divided into two-way,
Flow out from second interface all the way, after arrival indoor heat exchanger further throttles, side heat exchanger evaporation endothermic, becomes low temperature indoors
The gaseous coolant of low pressure；Another road, enters supplementary heat exchanger by the 4th interface, further cools down the refrigerant of primary flow path, evaporation
Heat absorption becomes gaseous coolant, reaches gas-liquid separator after the mixing of two-way refrigerant, is absorbed by compressor again and is compressed, is completed refrigeration and follow
Ring.
Above-mentioned technical proposal of the invention, it is preferable that throttling arrangement includes：First throttle device, located at second pipe
Lu Shang, controls in the second pipeline, and refrigerant is flow to the pressure of the flow velocity and refrigerant of supplementary heat exchanger by outdoor heat exchanger；Second section
Stream device, on the 3rd pipeline, or on the 4th pipeline, or inside flash vessel.
In the technical scheme, when refrigerant flow to supplementary heat exchanger by outdoor heat exchanger, by first throttle device, become
The refrigerant of medium temperature and medium pressure, can be such that supplementary heat exchanger is preferably further subcooled to refrigerant.Can be adjusted by second throttling device
The flow velocity and pressure of the refrigerant for flowing out are saved from flash vessel.
Above-mentioned technical proposal of the invention, it is preferable that also include：First temperature sensor, located at the row of compressor
On gas port, the refrigerant temperature that compressor is discharged is detected；Control device, is connected with the first temperature sensor, is connected with cross valve, with
First valve and the second valve are connected, and are connected with first throttle device and second throttling device.
In the technical scheme, the temperature of refrigerant that compressor discharge is detected first by the first temperature sensor, then
Transmit to control device, when temperature reaches preset value, to control the unlatching of the first valve, the effect of air injection enthalpy-increasing can be improved.
Control device can also change the connection direction of cross valve, with reference to first throttle device and second throttling device, can be to refrigerant
Pressure, flow velocity and direction controlled well.After heating operation is accumulated to a certain extent, system is run into defrost
When, control device can control the second valve and open, increase refrigerant circulation, the inspiratory capacity of compressor when supplementing defrost, so as to
Quick defrost is realized, strengthens heating effect, optimize the thermal comfort of defrost, improve the heat exchange efficiency of whole air-conditioning system.
Above-mentioned technical proposal of the invention, it is preferable that control device also includes：Heating mode is in air-conditioning system
Under, the first valve port of control is connected with the second valve port, and the 4th valve port is connected with the 3rd valve port；And in air-conditioning system in refrigeration mould
Under formula, the first valve port of control is connected with the 3rd valve port, and the 4th valve port is connected with the second valve port.
In the technical scheme, under heating mode, the first valve port and the second valve port are connected, and compressor air-discharging is from the first valve port
Into cross valve, then flow out from the second valve port, reach indoor heat exchanger condensation heat release, afterwards through the second interface of flash vessel
Pipe enters flash vessel, and refrigerant carries out gas-liquid separation, and the gaseous coolant separated is flowed out from the 3rd interface of flash vessel, is ejected into
In compressor, strengthen the jeting effect of compressor, improve the whole capability of compressor.Meanwhile, the liquid refrigerants separated point
For two-way, it is the primary flow path refrigerant flowed out from flash vessel first interface all the way, into supplementary heat exchanger, enters in supplementary heat exchanger
One step is subcooled, the overall heat exchange ability of strengthening system, after the throttling of first throttle device, inhales into outdoor heat exchanger evaporation
Heat, becomes gaseous coolant.4th valve port is connected with the 3rd valve port, and gaseous coolant enters cross valve by the 3rd valve port, Ran Houtong
Cross the outflow of the 4th valve port.Another road, after second throttling device throttling, reaches supplementary heat exchanger, and evaporation endothermic becomes gaseous state
Refrigerant, with the low-pressure side refrigerant from outdoor heat exchanger after mixing, returns to gas-liquid separator, is absorbed by compressor again and is pressed
Contracting, completes to heat circulation.Under refrigeration mode, the first valve port is connected with the 3rd valve port, and the 4th valve port is connected with the second valve port.Compression
Machine exhaust enters cross valve through the first valve port, then enters outdoor heat exchanger by the 3rd valve port and condenses heat release, is then passed through
After first throttle device tentatively throttles, become the refrigerant of the middle temperature of middle pressure, be further subcooled into supplementary heat exchanger, improve primary flow path
The degree of supercooling of refrigerant, so as to improve the exchange capability of heat of whole air-conditioning system.From supplementary heat exchanger primary flow path refrigerant out, pass through
First interface enters flash vessel, and refrigerant carries out gas-liquid separation, and the gaseous coolant separated is flowed out from the 3rd interface of flash vessel,
It is ejected in compressor, strengthens the jeting effect of compressor, improves the whole capability of compressor.The liquid refrigerants separated point
Into two-way, flow out from second interface all the way, reach after indoor heat exchanger further throttles, indoors side heat exchanger evaporation endothermic,
Become the gaseous coolant of low-temp low-pressure；Another road, after being throttled by second throttling device, into supplementary heat exchanger, further
The refrigerant of cooling primary flow path, evaporation endothermic become gaseous coolant, after the mixing of two-way refrigerant, are absorbed by compressor again and are compressed, complete
Into kind of refrigeration cycle.
Above-mentioned technical proposal of the invention, it is preferable that also include：Timer, is connected with control device, counts air-conditioning
System run time in a heating mode；Second temperature sensor, is connected with control device, on outdoor heat exchanger, inspection
Survey outdoor environment temperature.
In the technical scheme, outdoor environment temperature can be detected by second temperature sensor, work as outdoor environment temperature
During less than preset value, air-conditioning system is run into defrost, and now, timer starts to count air-conditioning system fortune in a heating mode
The row time, when scheduled duration is reached after heating operation is accumulated to a certain extent, then the second valve is opened, and is separated from flash vessel
Refrigerant enter gas-liquid separator through the second valve, Jing after gas-liquid separator separates, by compressor absorb, increase refrigerant circulation
Amount, the inspiratory capacity of compressor when supplementing defrost, so as to realize quick defrost, strengthen heating effect, and the heat for optimizing defrost is relaxed
Adaptive, improves the heat exchange efficiency of whole air-conditioning system.
Any of the above-described technical scheme of the invention, it is preferable that throttling arrangement includes：It is electromagnetic type expansion valve, electronic
Formula expansion valve.
In the technical scheme, by throttling arrangement is selected as electromagnetic type expansion valve or electrodynamic type expansion valve, Ke Yishi
The throttling of existing condensing pressure to evaporating pressure, controls the flow of refrigerant, the coolant throttle in pipeline is depressured so as to reach.
A kind of air-conditioning that the technical scheme of second aspect present invention is provided includes any one technology of first aspect present invention
The air-conditioning system that scheme is provided, therefore the air-conditioning has the beneficial effect of whole of the air-conditioning system of any of the above-described technical scheme offer
Really, will not be described here.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
Fig. 1 shows an air-conditioning system schematic diagram according to an embodiment of the invention；
Fig. 2 shows another air-conditioning system schematic diagram according to an embodiment of the invention.
100 air-conditioning systems, 102 compressors, 104 flash vessels, 106 cross valves, the first valve ports of m, the second valve ports of n, the 3rd valves of o
Mouthful, the 4th valve ports of p, 108 first throttle devices, 110 second throttling devices, 112 supplementary heat exchangers, 114 outdoor heat exchangers, 116
Indoor heat exchanger, 118 gas-liquid separators, 120 second pipelines, a first interfaces, b second interfaces, the 3rd interfaces of c, the 4th interfaces of d,
H firsts, the 3rd mouthful of second mouthful of i, j, the 4th mouthful of k, 122 first pipelines, 124 first valves；126 defrost pipelines, 128 second valves.
Specific embodiment
It is in order to be more clearly understood that the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and concrete real
Apply mode to be further described in detail the present invention.It should be noted that in the case where not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from alternate manner described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment restriction.
Air-conditioning system 100 according to an embodiment of the invention is specifically described with reference to Fig. 1.
As shown in figure 1, air conditioner and heat pump unit defrosting system 100 includes according to an embodiment of the invention：Compressor 102,
Cross valve 106, indoor heat exchanger 116, outdoor heat exchanger 114 and throttling arrangement, the first valve port m of cross valve 106 and compressor
102 are connected, and the second valve port n of cross valve 106 is connected with indoor heat exchanger 116, and the 3rd valve port o of cross valve 106 is changed with outdoor
Hot device 114 is connected, and also includes：Supplementary heat exchanger 112, is connected with outdoor heat exchanger 114；Flash vessel 104, with supplementary heat exchanger
112 are connected, and flash vessel 104 is connected with compressor 102 by the first pipeline 122；First valve 124, on the first pipeline 122；
Defrost pipeline 126, connection cross valve 106 and flash vessel 104；Second valve 128, on defrost pipeline 126, control refrigerant is being changed
Flow regime in white pipeline 126.
Air-conditioning system 100 according to an embodiment of the invention, according to 102 delivery temperature of compressor, it can be determined that whether need
The first valve 124 is turned on and off, when opening the first valve 124, the gaseous coolant after flash vessel 104 is separated is directly injected to
The effect of air injection enthalpy-increasing in compressor 102, is improve, while the degree of supercooling of system can be improved, strengthens the exchange capability of heat of unit,
Improve air-conditioning system due to the hypodynamic problem of heat-energy transducer caused by low temperature, so as to improve the heat transfer effect of whole air-conditioning system.
Unlatching can increase refrigerant circulation positioned at the second valve 128 of defrost pipeline 126, the air-breathing of compressor 102 when supplementing defrost
Amount, so as to realize quick defrost, strengthens heating effect, optimizes the thermal comfort of defrost, improve the heat exchange of whole air-conditioning system
Efficiency.
Air-conditioning system 100 according to the abovementioned embodiments of the present invention, can also have following technical characteristic：
As shown in figure 1, air-conditioning system 100 also includes according to an embodiment of the invention：Gas-liquid separator 118, gas-liquid point
It is connected with the 4th valve port p of cross valve 106 from the entrance of device 118, the outlet of gas-liquid separator 118 and the second of compressor 102
Air inlet is connected, and refrigerant flows through gas-liquid separator 118 by the 4th valve port p of cross valve 106, flow in compressor 102.
In this embodiment, refrigerant enters gas-liquid separator 118 by the 4th valve port p of cross valve 106, by gas-liquid separation
Device 118 is flow in compressor 102, so as to be absorbed compression by compressor 102, it is to avoid liquid refrigerants is directly entered compressor and leads
The problem of the compressor damage of cause.
According to the above embodiment of the present invention, it is preferable that also include：The of 4th mouthful of k of supplementary heat exchanger 112 and cross valve
Four valve port p are connected；Or the 4th mouthful of k of supplementary heat exchanger is connected with the outlet of gas-liquid separator, refrigerant flows to gas by the 4th mouthful
The outlet of liquid/gas separator, the part refrigerant that the outlet with gas-liquid separator is discharged carry out mixed flow to compressor.
In this embodiment, the 4th valve port p of cross valve is connected with the entrance of gas-liquid separator 118, as pressure is acted on,
Refrigerant is flowed to the entrance of gas-liquid separator 118 by the 4th mouthful of k of supplementary heat exchanger 112, by gas-liquid separator 118 by liquid
Refrigerant is separated, and then gaseous coolant is flowed in compressor 102, and gaseous coolant can strengthen the injection effect of compressor
Really, improve the whole capability of compressor.Or in cooling mode, can select will be the 4th mouthful of k of supplementary heat exchanger 112 direct
Outlet with gas-liquid separator 118 is connected, and gaseous coolant is flowed directly to the outlet of gas-liquid separator 118 by the 4th mouthful of k, with gas
The gaseous coolant that the outlet of liquid/gas separator 118 is discharged carries out mixed flow to compressor 102.So as to mitigate the damage of gas-liquid separator
Consumption, extends the life-span of gas-liquid separator.
According to one embodiment of present invention, it is preferable that also include：Second pipeline 120, connects supplementary heat exchanger 112
The exhaust outlet of first h and outdoor heat exchanger 114, refrigerant are discharged from the exhaust outlet of outdoor heat exchanger 114, by the second pipeline
The 120 first h for flowing to supplementary heat exchanger 112.
In this embodiment, under refrigeration mode, refrigerant flow to the first of supplementary heat exchanger 112 by the second pipeline 120
H, is further subcooled into after supplementary heat exchanger 112, and the pipeline Jing auxiliary for improving connection outdoor heat exchanger with supplementary heat exchanger is changed
Degree of supercooling of the hot device into refrigerant in the stream (i.e. primary flow path) of the first pipeline, so as to improve the heat-energy transducer of whole air-conditioning system
Power.
According to one embodiment of present invention, it is preferable that also include：Flash vessel 104 includes：First interface a, is changed with auxiliary
Second mouthful of i of hot device 112 is connected, and refrigerant is flowed out by supplementary heat exchanger 112, is flowed in flash vessel 104 by first interface a；The
Two interface b, are connected to indoor heat exchanger 116 by the 3rd pipeline, and refrigerant flow to interior by the second pipeline by flash vessel 104 and changes
Hot device 116；3rd interface c, is connected to the first air inlet of compressor 102, and refrigerant flow to compressor 102 by flash vessel 104；The
Four interface d, are connected by the 4th pipeline with the 3rd mouthful of j of supplementary heat exchanger 112, and refrigerant flows out to auxiliary by flash vessel 104 and changes
Hot device 112.
In this embodiment, under refrigeration mode, refrigerant is flowed out by supplementary heat exchanger 112, flows into flash distillation by first interface a
In device 104, refrigerant is carried out gas-liquid separation by flash vessel 104, threeth interface c of the gaseous coolant separated from flash vessel 104
Flow out, be ejected in compressor 102, strengthen the jeting effect of compressor 102, improve the whole capability of compressor.Separate
Liquid refrigerants be divided into two-way, flow out from second interface b all the way, reach after indoor heat exchanger 116 further throttles, indoors side
116 evaporation endothermic of heat exchanger, becomes the gaseous coolant of low-temp low-pressure；Another road, enters supplementary heat exchanger by the 4th interface d
112, the refrigerant of primary flow path is further cooled down, evaporation endothermic becomes gaseous coolant, reaches gas-liquid separator after the mixing of two-way refrigerant
118, compression is absorbed by compressor 102 again, kind of refrigeration cycle is completed.
According to the abovementioned embodiments of the present invention, it is preferable that throttling arrangement includes：First throttle device 108, located at second pipe
On road 120, control in the second pipeline 120, refrigerant is flow to the flow velocity and refrigerant of supplementary heat exchanger 112 by outdoor heat exchanger 114
Pressure；Second throttling device 110, on the 3rd pipeline, or on the 4th pipeline, or inside flash vessel 104.
In this embodiment, when refrigerant flow to supplementary heat exchanger 112 by outdoor heat exchanger 114, by first throttle device
108, become the refrigerant of medium temperature and medium pressure, supplementary heat exchanger 112 can be made preferably further to be subcooled to refrigerant.By the second throttling
Device 110 can adjust from flash vessel 104 flow velocity and pressure of the refrigerant for flowing out.
According to the abovementioned embodiments of the present invention, it is preferable that also include：First temperature sensor, located at the exhaust of compressor
On mouth, the temperature of the refrigerant discharged by compressor 102 is detected；And control device, it is connected with the first temperature sensor, with four-way
Valve 106 is connected, and is connected with the first valve 124 and the second valve 128, is connected with first throttle device 108 and second throttling device 110.
In this embodiment, detect the temperature of the refrigerant that compressor 102 is discharged first by the first temperature sensor, then
Transmit to control device, when temperature reaches preset value, open to control the first valve 124, the effect of air injection enthalpy-increasing can be improved
Really.Control device can also change the connection direction of cross valve 106, with reference to first throttle device 108 and second throttling device
110, the pressure of refrigerant, flow velocity and direction can be controlled well.After heating operation is accumulated to a certain extent, it is
When system is into defrost operation, control device can control the second valve 128 and open, and increase refrigerant circulation, press when supplementing defrost
The inspiratory capacity of contracting machine 102, so as to realize quick defrost, strengthens heating effect, optimizes the thermal comfort of defrost, improves whole empty
The heat exchange efficiency of adjusting system.
Where it is assumed that the corresponding saturation temperature of the pressure at expulsion of compressor is 15 degree, it is 3 to arrange a predetermined variation value,
It is 17 degree when the first temperature sensor detects compressor exhaust temperature now, Δ T=17-15, i.e. Δ T=2<3, due to this
When Δ T be less than default temperature change value, then system automatically turns on the first valve 124, makes the gaseous state that Jing flash vessels are separated cold
Matchmaker is flowed out from the 3rd interface c of flash vessel 104, is ejected in compressor 102, strengthens the jeting effect of compressor, improves compression
The whole capability of machine 102.Accordingly, in the case of general environment, Δ T is more than default temperature change value, then close the first valve,
Reduce system energy consumption.
Meanwhile, second temperature sensor can detect outdoor environment temperature, it is assumed that a critical value is 0 degree, heating operation
It is accumulated over 5 hours being then sent to control device, if it is -10 that second temperature sensor detects now outdoor environment temperature
Degree, then system enter defrost and run, timer starts timing, and when heating defrost operation accumulation arrival 5 hours, timer is by signal
Send to control device, control device will open the second valve 128 positioned at defrost pipeline, now from the 3rd interface c of flash vessel 104
The gaseous coolant of outflow flows into defrost pipeline 126, enters gas-liquid separator 118, Jing gas-liquid separators 118 through the second valve 128
After separation, absorbed by compressor 102, increase refrigerant circulation, the inspiratory capacity of compressor when supplementing defrost is quick so as to realize
Defrost, strengthens heating effect, optimizes the thermal comfort of defrost, improves the heat exchange efficiency of whole air-conditioning system.
According to the abovementioned embodiments of the present invention, it is preferable that control device also includes：Heating mode is in air-conditioning system
Under, the first valve port m of control is connected with the second valve port n, and the 4th valve port p is connected with the 3rd valve port o；And in air-conditioning system in system
Under chill formula, the first valve port m of control is connected with the 3rd valve port o, and the 4th valve port p is connected with the second valve port n.
In this embodiment, under heating mode, the first valve port m and the second valve port n is connected, and compressor 102 is vented from first
Valve port m enters cross valve, then flows out from the second valve port n, reaches the condensation heat release of indoor heat exchanger 116, afterwards through flash vessel
104 second interface b pipe enters flash vessel 104, and refrigerant carries out gas-liquid separation, and the gaseous coolant separated is from flash vessel 104
The 3rd interface c flow out, be ejected in compressor 102, strengthen compressor jeting effect, improve compressor 102 overall energy
Power.Meanwhile, the liquid refrigerants separated is divided into two-way, is cold from the primary flow path of 104 first interface a of flash vessel outflows all the way
Matchmaker, into supplementary heat exchanger 112, is further subcooled in supplementary heat exchanger 112, the overall heat exchange ability of strengthening system, passes through
After first throttle device 108 throttles, into 114 evaporation endothermic of outdoor heat exchanger, become gaseous coolant.4th valve port p and the 3rd
Valve port o is connected, and gaseous coolant enters cross valve by the 3rd valve port o, is then flowed out by the 4th valve port p.Another road, Jing Guo
After two throttling arrangement 110 throttles, supplementary heat exchanger 112 is reached, evaporation endothermic becomes gaseous coolant, and from outdoor heat exchanger
114 low-pressure side refrigerant returns to gas-liquid separator 118 after mixing, is absorbed compression by compressor 102 again, completes to heat
Circulation.Under refrigeration mode, the first valve port m is connected with the 3rd valve port o, and the 4th valve port p is connected with the second valve port n.Compressor air-discharging
Cross valve is entered through the first valve port m, outdoor heat exchanger 114 is entered by the 3rd valve port o then and is condensed heat release, be then passed through the
After one throttling arrangement, 108 preliminary throttling, become the refrigerant of the middle temperature of middle pressure, be further subcooled into supplementary heat exchanger 112, improve master
The degree of supercooling of stream refrigerant, so as to improve the exchange capability of heat of whole air-conditioning system.From supplementary heat exchanger primary flow path refrigerant out,
Flash vessel is entered through first interface a, refrigerant carries out gas-liquid separation, threeth interface of the gaseous coolant separated from flash vessel
C flows out, and is ejected in compressor 102, strengthens the jeting effect of compressor, improves the whole capability of compressor.Separate
Liquid refrigerants is divided into two-way, flows out from second interface b all the way, after arrival indoor heat exchanger 116 further throttles, exchanges heat indoors
116 evaporation endothermic of device, becomes the gaseous coolant of low-temp low-pressure；Another road, after being throttled by second throttling device 110, is entered
Supplementary heat exchanger 112, further cools down the refrigerant of primary flow path, and evaporation endothermic becomes gaseous coolant, after the mixing of two-way refrigerant, again
Compression is absorbed by compressor 102, kind of refrigeration cycle is completed.
According to the abovementioned embodiments of the present invention, it is preferable that also include：Timer, is connected with control device, statistics air-conditioning system
System run time in a heating mode；Second temperature sensor, is connected with control device, on outdoor heat exchanger, detection
Outdoor environment temperature.
In this embodiment, outdoor environment temperature can be detected by second temperature sensor, when outdoor environment temperature it is low
When preset value, air-conditioning system is run into defrost, and now, timer starts to count air-conditioning system operation in a heating mode
Time, when scheduled duration is reached after heating operation is accumulated to a certain extent, then the second valve is opened, and is separated from flash vessel
Refrigerant enters gas-liquid separator 118 through the second valve 128, Jing after gas-liquid separator 118 is separated, is absorbed by compressor 102, is increased
Refrigerant circulation, the inspiratory capacity of compressor when supplementing defrost, so as to realize quick defrost, strengthen heating effect, optimizing
The thermal comfort of frost, improves the heat exchange efficiency of whole air-conditioning system.
Any of the above-described embodiment of the invention, it is preferable that throttling arrangement includes：Electromagnetic type expansion valve, electrodynamic type
Expansion valve.
In this embodiment, by throttling arrangement is selected as electromagnetic type expansion valve or electrodynamic type expansion valve, it is possible to achieve
The throttling of condensing pressure to evaporating pressure, controls the flow of refrigerant, the coolant throttle in pipeline is depressured so as to reach.
Embodiment one：
As shown in figure 1, winter day it is cold when, user open air-conditioning, air-conditioning is transferred under heating mode, now the first valve
Mouth m and the second valve port n is connected, and the 4th valve port p is connected with the 3rd valve port o, and compressor 102 is vented from the first valve port m and enters four-way
Valve 106, then flows out from the second valve port n, reaches the condensation heat release of indoor heat exchanger 116, and second through flash vessel 104 connects afterwards
Mouth b enters flash vessel 104, meanwhile, the first temperature sensor positioned at 102 exhaust outlet of compressor detects the exhaust of compressor 102
Temperature, if delivery temperature now is 20 degree, it is assumed that the corresponding saturation temperature of pressure at expulsion of compressor 102 is 18 degree, if
It is 3 to put a predetermined variation value, due to Δ T=20-18, i.e. Δ T=2<3, as now Δ T is less than default temperature change
Value, then system automatically turns on the first valve 124, the gaseous coolant that Jing flash vessels 104 are separated is connect from the 3rd of flash vessel 104
Mouth c flows out, and is ejected in compressor 102, strengthens the jeting effect of compressor 102, improves the whole capability of compressor 102.Together
When, the liquid refrigerants separated is divided into two-way, is the primary flow path refrigerant flowed out from 104 first interface a of flash vessel all the way, enters
Supplementary heat exchanger 112, is further subcooled in supplementary heat exchanger 112, the overall heat exchange ability of strengthening system, through first throttle
After device 108 throttles, into 114 evaporation endothermic of outdoor heat exchanger, become gaseous coolant.4th valve port p and the 3rd valve port o connects
Logical, gaseous coolant enters cross valve by the 3rd valve port o, is then flowed out by the 4th valve port p.Another road, through the second throttling
After device 110 throttles, supplementary heat exchanger 112 is reached, evaporation endothermic becomes gaseous coolant, and from the low of outdoor heat exchanger 114
Pressure side refrigerant after mixing, into gas-liquid separator 118, flow to compressor, by compressor 102 in pipeline after gas-liquid separation
Compression is absorbed, completes to heat circulation.
It is 17 degree when the first temperature sensor detects compressor exhaust temperature now, Δ T=17-15, i.e. Δ T=2<
3, as now Δ T is less than default temperature change value, then system automatically turns on the first valve 124, isolates Jing flash vessels 104
The gaseous coolant for coming is flowed out from the 3rd interface c of flash vessel 104, is ejected in compressor 102, strengthens the injection of compressor 102
Effect, improves the whole capability of compressor 102.Accordingly, in the case of general environment, Δ T is more than default temperature change value,
The first valve is then closed, system energy consumption is reduced.
Outdoor environment temperature can be detected with the time of statistical system heating operation, second temperature sensor by timer
Degree, it is assumed that critical value is 0 degree, and heating operation is accumulated over 5 hours then sending the signal to control device, when heating defrost
After operation accumulation is reached 5 hours, timer sends run time information to control device, if second temperature sensor detection
It is -11 degree to now outdoor environment temperature, then system is run into defrost, and control device will open positioned at defrost pipeline second
Valve 128, now flows into defrost pipeline 126 from the gaseous coolant that the 3rd interface c of flash vessel 104 flows out, enters through the second valve 128
Gas-liquid separator 118, Jing after gas-liquid separator 118 is separated, is absorbed by compressor 102, increases refrigerant circulation, supplement defrost
When compressor inspiratory capacity, so as to realize quick defrost, strengthen heating effect, optimize the thermal comfort of defrost, improve whole
The heat exchange efficiency of air-conditioning system.
When summer user is needed using air conditioner refrigerating, the first valve port m and the 3rd valve of control device control cross valve 106
Mouth o connections, the 4th valve port p are connected with the second valve port n.Compressor air-discharging enters cross valve 106, Ran Houtong through the first valve port m
Cross the 3rd valve port o and heat release is condensed into outdoor heat exchanger 114, after being then passed through the 108 preliminary throttling of first throttle device, in becoming
The refrigerant of the middle temperature of pressure, is further subcooled into supplementary heat exchanger 112, improves the degree of supercooling of primary flow path refrigerant, whole so as to improve
The exchange capability of heat of air-conditioning system.From the primary flow path refrigerant out of supplementary heat exchanger 112, flash vessel is entered through first interface a, it is cold
Matchmaker carries out gas-liquid separation, meanwhile, the first temperature sensor positioned at 102 exhaust outlet of compressor detects the delivery temperature of compressor,
If delivery temperature now is 28 degree, it is assumed that the corresponding saturation temperature of pressure at expulsion of compressor is 18 degree, one is arranged in advance
It is 3 to determine changing value, due to Δ T=28-18, i.e. Δ T=10>3, as now Δ T is much larger than default temperature change value, it is not required to
Air injection enthalpy-increasing effect is strengthened by the first valve 128, then system is automatically switched off the first valve 124, isolate Jing flash vessels 104
The gaseous coolant for coming can not be flowed out from the 3rd interface c of flash vessel 104.The liquid that reduction by 102 energy consumption of compressor is separated is cold
Matchmaker is divided into two-way, flows out from second interface b all the way, reaches after indoor heat exchanger 116 further throttles, indoors heat exchanger 116
Evaporation endothermic, becomes the gaseous coolant of low-temp low-pressure；Another road, after being throttled by second throttling device 110, is changed into auxiliary
Hot device 112, further cools down the refrigerant of primary flow path, and evaporation endothermic becomes gaseous coolant, after the mixing of two-way refrigerant, into gas-liquid point
Separated from device 118, finally, compression is absorbed by compressor 102, kind of refrigeration cycle is completed.
Wherein, second throttling device 110 can be arranged on inside flash vessel 104, it is also possible to be arranged on flash vessel 104 and room
On pipeline between interior heat exchanger 116.
Embodiment two：
As shown in Fig. 2 under heating mode, based on embodiment one, from the 4th interface d of flash vessel 104 liquid refrigerants out
After second throttling device 110 throttles, supplementary heat exchanger 112 is reached, evaporation endothermic becomes gaseous coolant, then directly reached
The exit position of gas-liquid separator 118, flow in compressor 102, most together with through 118 detached refrigerant of gas-liquid separator
Afterwards, compression is absorbed by compressor 102, completes to heat circulation.
Likewise, in conjunction with the embodiments one, in cooling mode, from the 4th interface of flash vessel 104 liquid refrigerants Jing out
Cross after second throttling device 110 throttles, after being throttled by second throttling device 110, into supplementary heat exchanger 112, further
The refrigerant of cooling primary flow path, evaporation endothermic become gaseous coolant, then directly reach the exit position of gas-liquid separator 118, with
It is flow in compressor 102 together through the refrigerant of gas-liquid separator separates, compression is absorbed by compressor 102 finally, completes refrigeration
Circulation.
A kind of air-conditioning that the embodiment of second aspect present invention is provided includes any one embodiment of first aspect present invention
The air-conditioning system of offer, therefore the air-conditioning has whole beneficial effects of the air-conditioning system of any of the above-described embodiment offer, here
Repeat no more.
Technical scheme is described in detail above in association with accompanying drawing, the present invention proposes a kind of air-conditioning system, opens
The second valve positioned at defrost pipeline can increase refrigerant circulation, the inspiratory capacity of compressor when supplementing defrost, fast so as to realize
Fast defrost, strengthens heating effect, optimizes the thermal comfort of defrost, improves the heat exchange efficiency of whole air-conditioning system.
In the description of this specification, term " first ", " second " are only used for the purpose for describing, and it is not intended that indicating
Or hint relative importance；Term " connection ", " installation ", " fixation " etc. all should be interpreted broadly, and for example, " connection " can be solid
Surely connect, or be detachably connected, or be integrally connected；Can be joined directly together, it is also possible to indirect by intermediary
It is connected.For the ordinary skill in the art, above-mentioned term tool in the present invention can be understood as the case may be
Body implication.
In the description of this specification, the description of term " one embodiment " etc. means to describe with reference to the embodiment or example
Specific features, structure, material or feature be contained at least one embodiment or example of the present invention.In this manual,
Identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the specific features of description, knot
Structure, material or feature can be combined in one or more any embodiment or example in an appropriate manner.
The preferred embodiments of the present invention are these are only, the present invention is not limited to, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of air-conditioning system, including：Compressor (102), cross valve (106), indoor heat exchanger (116), outdoor heat exchanger
(114) and throttling arrangement, the first valve port (m) of the cross valve (106) is connected with the compressor (102), the cross valve
(106) the second valve port (n) is connected with the indoor heat exchanger (116), the 3rd valve port (o) of the cross valve (106) and institute
State outdoor heat exchanger (114) to be connected, it is characterised in that also include：
Supplementary heat exchanger (112), is connected with the cross valve (106) and the outdoor heat exchanger (114)；
Flash vessel (104), is connected with the supplementary heat exchanger (112), by the first pipeline (122) and the compressor (102)
It is connected；
First valve (124), on first pipeline (122)；
Defrost pipeline (126), connects the cross valve (106) and the flash vessel (104)；
Second valve (128), on the defrost pipeline (126), control refrigerant flowing shape in the defrost pipeline (126)
State.
2. air-conditioning system according to claim 1, it is characterised in that also include：
Gas-liquid separator (118), the entrance of the gas-liquid separator (118) and the 4th valve port (p) phase of the cross valve (106)
Even, the outlet of the gas-liquid separator (118) is connected with the second air inlet of the compressor (102), and the refrigerant is by described
4th valve port (p) of cross valve (106) flows through the gas-liquid separator (118), flow in the compressor (102).
3. air-conditioning system according to claim 2, it is characterised in that also include：
4th mouthful (k) of the supplementary heat exchanger (112) is connected with the 4th valve port (p) of the cross valve (106), described
Refrigerant flows to the 4th valve port (p) by the 4th mouthful (k)；Or
4th mouthful (k) of the supplementary heat exchanger (112) is connected with the outlet of the gas-liquid separator (118), the refrigerant by
4th mouthful (k) flows to the outlet of the gas-liquid separator (118), and the outlet with the gas-liquid separator (118) is discharged
The part refrigerant carry out mixed flow to the compressor (102).
4. air-conditioning system according to claim 1, it is characterised in that also include：
Second pipeline (120), connects the first (h) of the supplementary heat exchanger (112) and the row of the outdoor heat exchanger (114)
Gas port, the refrigerant are discharged from the exhaust outlet of the outdoor heat exchanger (114), are flow to by second pipeline (120) described
The first (h) of supplementary heat exchanger (112).
5. air-conditioning system according to claim 1, it is characterised in that the flash vessel (104) includes：
First interface (a), is connected with second mouthful (i) of the supplementary heat exchanger (112), and the refrigerant is by the supplementary heat exchanger
(112) flow out, flowed in the flash vessel (104) by the first interface (a)；
Second interface (b), is connected to the indoor heat exchanger (116) by the 3rd pipeline, and the refrigerant is by the flash vessel
(104) indoor heat exchanger (116) is flow to by the 3rd pipeline；
3rd interface (c), is connected to the first air inlet of the compressor (102), and the refrigerant is flowed by the flash vessel (104)
To the compressor (102)；
4th interface (d), is connected by the 4th pipeline with the 3rd mouthful (j) of the supplementary heat exchanger (112), and the refrigerant is by institute
State flash vessel (104) and flow out to the supplementary heat exchanger (112).
6. air-conditioning system according to claim 5, it is characterised in that the throttling arrangement includes：
First throttle device (108), on second pipeline (120), controls in second pipeline (120), described
Refrigerant is flow to the pressure of the flow velocity and the refrigerant of the supplementary heat exchanger (112) by the outdoor heat exchanger (114)；
Second throttling device (110), on the 3rd pipeline, or on the 4th pipeline, or is located at the flash distillation
Device (104) is internal.
7. air-conditioning system according to claim 6, it is characterised in that also include：
First temperature sensor, on the exhaust outlet of the compressor (102), detects that the compressor (102) is discharged cold
Matchmaker's temperature；
Control device, is connected with first temperature sensor, is connected with the cross valve (106), with first valve (124)
And second valve (128) is connected, and is connected with the first throttle device (108) and the second throttling device (110).
8. air-conditioning system according to claim 7, it is characterised in that the control device also includes：
In the air-conditioning system under heating mode, control first valve port (m) and connect with second valve port (n), institute
State the 4th valve port (p) to connect with the 3rd valve port (o)；And
In the air-conditioning system under refrigeration mode, control first valve port (m) and connect with the 3rd valve port (o), institute
State the 4th valve port (p) to connect with second valve port (n).
9. air-conditioning system according to claim 8, it is characterised in that also include：
Timer, is connected with the control device, counts run time of the air-conditioning system under the heating mode；
Second temperature sensor, is connected with the control device, on the outdoor heat exchanger (114), detects outdoor environment
Temperature.
10. air-conditioning system according to any one of claim 1 to 9, it is characterised in that
The throttling arrangement includes：Electromagnetic type expansion valve, electrodynamic type expansion valve.
11. a kind of air-conditionings, it is characterised in that including the air-conditioning system any one of claim 1 to 10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046309.XA CN106524610A (en) | 2016-11-22 | 2016-11-22 | Air conditioning system and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046309.XA CN106524610A (en) | 2016-11-22 | 2016-11-22 | Air conditioning system and air conditioner |
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| CN106524610A true CN106524610A (en) | 2017-03-22 |
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ID=58357960
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611046309.XA Pending CN106524610A (en) | 2016-11-22 | 2016-11-22 | Air conditioning system and air conditioner |
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| CN108679890A (en) * | 2018-07-23 | 2018-10-19 | 珠海格力电器股份有限公司 | A kind of heat pump circulating system and operation method of compound defrosting |
| CN109990429A (en) * | 2019-03-15 | 2019-07-09 | 奥克斯空调股份有限公司 | A kind of air conditioner defrosting control method and air conditioner |
| CN110425763A (en) * | 2018-11-20 | 2019-11-08 | 青岛海尔空调电子有限公司 | A kind of heat pump system |
| CN110470012A (en) * | 2019-08-02 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
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| CN108679890A (en) * | 2018-07-23 | 2018-10-19 | 珠海格力电器股份有限公司 | A kind of heat pump circulating system and operation method of compound defrosting |
| CN110425763A (en) * | 2018-11-20 | 2019-11-08 | 青岛海尔空调电子有限公司 | A kind of heat pump system |
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| CN110470012B (en) * | 2019-08-02 | 2022-03-29 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110470012A (en) * | 2019-08-02 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| CN110470013A (en) * | 2019-08-02 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| CN110470013B (en) * | 2019-08-02 | 2022-03-29 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110762755A (en) * | 2019-10-30 | 2020-02-07 | Tcl空调器(中山)有限公司 | Defrosting control device and control method of air conditioner |
| WO2021098552A1 (en) * | 2019-11-21 | 2021-05-27 | 青岛海尔空调器有限总公司 | Heat pump type air-conditioning system and control method therefor |
| CN111306725A (en) * | 2020-02-26 | 2020-06-19 | 海信（山东）空调有限公司 | Enhanced vapor injection air conditioning system and control method thereof |
| CN111306725B (en) * | 2020-02-26 | 2021-09-28 | 海信（山东）空调有限公司 | Enhanced vapor injection air conditioning system and control method thereof |
| CN111397045B (en) * | 2020-04-20 | 2024-04-05 | 珠海格力电器股份有限公司 | Unit based on semiconductor heat exchanger, control method thereof and air conditioner |
| CN111397045A (en) * | 2020-04-20 | 2020-07-10 | 珠海格力电器股份有限公司 | Unit based on semiconductor heat exchanger, control method thereof and air conditioner |
| WO2022041950A1 (en) * | 2020-08-24 | 2022-03-03 | 珠海格力电器股份有限公司 | Air conditioning system, control method for air conditioning system, and device |
| CN112050292B (en) * | 2020-08-24 | 2021-08-03 | 珠海格力电器股份有限公司 | Air conditioning system, and air conditioning system control method and device |
| CN112050292A (en) * | 2020-08-24 | 2020-12-08 | 珠海格力电器股份有限公司 | Air conditioning system, and air conditioning system control method and device |
| CN112539452A (en) * | 2020-12-18 | 2021-03-23 | 珠海格力电器股份有限公司 | Multi-split air conditioner and control method thereof |
| CN113654264A (en) * | 2021-08-05 | 2021-11-16 | 青岛海尔空调电子有限公司 | Air source heat pump system and control method thereof |
| CN113654264B (en) * | 2021-08-05 | 2023-10-20 | 青岛海尔空调电子有限公司 | Air source heat pump system and control method thereof |
| CN114812024A (en) * | 2022-05-06 | 2022-07-29 | 青岛海信日立空调系统有限公司 | Air conditioner and defrosting method thereof |
| CN114812024B (en) * | 2022-05-06 | 2023-11-07 | 青岛海信日立空调系统有限公司 | Air conditioner and defrosting method thereof |
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