CN107514718A - Heat pump, air-conditioning system and its control method - Google Patents
Heat pump, air-conditioning system and its control method Download PDFInfo
- Publication number
- CN107514718A CN107514718A CN201710728212.5A CN201710728212A CN107514718A CN 107514718 A CN107514718 A CN 107514718A CN 201710728212 A CN201710728212 A CN 201710728212A CN 107514718 A CN107514718 A CN 107514718A
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- China
- Prior art keywords
- solar thermal
- thermal collector
- compressor
- heat pump
- air
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
Abstract
The application provides the control method of a kind of heat pump, air-conditioning system and air-conditioning system, the heat pump is included in the compressor set on refrigerant flow, First Heat Exchanger, the second heat exchanger and solar thermal collector, switching device is additionally provided with the refrigerant flow, the switchgear configurations is so that the heat pump have the first mode of communicating and/or the second mode of communicating, in first mode of communicating, the solar thermal collector works independently, in second mode of communicating, the solar thermal collector and the compression mechanism are into parallel flow paths.The application is by setting solar thermal collector to collect the heat refrigerant of sunlight, run using solar heat auxiliary air conditioner, reduce the number of run of compressor, saved air-conditioning and use electric energy, the service life of compressor is substantially increased, makes operation of air conditioner more energy efficient, more environmentally friendly.
Description
Technical field
The present invention relates to air-conditioning technique field, and in particular to a kind of heat pump, is provided with the sky of the heat pump
The control method of adjusting system and air-conditioning system.
Background technology
Traditional air conditioner typically realizes refrigeration, heating using compressor compresses refrigerant, and compressor power consumption is big so that air-conditioning
Use cost is high, and can cause energy shortage, and particularly in summer peak of power consumption, powerful air-conditioning can cause to power network
Very big load, influences grid stability, or even causes some areas short of electricity.Also, during operation of air conditioner, compressor is constantly in work
Make state so that in summer weather sweltering heat, the abrasion of compressor is accelerated, so as to have impact on the service life of air-conditioning system.
The content of the invention
In view of this, an object of the present invention is to provide a kind of service life that can delay compressor and more
The control method of the heat pump that adds energy-conserving and environment-protective, the air-conditioning system for being provided with the heat pump and air-conditioning system.
To reach above-mentioned purpose, on the one hand, the present invention uses following technical scheme：
A kind of heat pump, it is included in the compressor set on refrigerant flow, First Heat Exchanger, the second heat exchanger and the sun
Can heat collector, be additionally provided with switching device on the refrigerant flow, the switchgear configurations is cause the heat pump tool
There are the first mode of communicating and/or the second mode of communicating, in first mode of communicating, the solar thermal collector works independently,
In second mode of communicating, the solar thermal collector and the compression mechanism are into parallel flow paths.
Preferably, the switching device is also configured to so that the heat pump has third connecting mode, described
Tee joint mode, the solar thermal collector and the compression mechanism are into serial flow circuit.
Preferably, in addition to gas-liquid separator, the output end of the compressor and solar thermal collector are commonly connected to institute
The first end of First Heat Exchanger or the second heat exchanger is stated, the second end of second heat exchanger or First Heat Exchanger is connected to
The input of the gas-liquid separator, the gas output end of the gas-liquid separator are respectively connecting to the compressor and solar energy
The input of heat collector.
Preferably, in addition to four-way reversing valve, the output end of the compressor and solar thermal collector connect through first flow path
The first port of the four-way reversing valve is connected to, the first end of the First Heat Exchanger is connected to the second of the four-way reversing valve
Port, the first end of second heat exchanger are connected to the 3rd port of the four-way reversing valve, and the of the four-way reversing valve
Four ports are connected to the input of the gas-liquid separator.
Preferably, the fluid output port of the gas-liquid separator is connected with the input of the solar thermal collector.
Preferably, the output end of the solar thermal collector is provided with two branch roads, is respectively：Connect solar thermal collector
Output end and First Heat Exchanger or the second heat exchanger first end tie point, connect the output end of solar thermal collector
With the second branch road of the input of compressor.
Preferably, the switching device includes the first control valve being arranged in the tie point, and/or, it is described to open
The second control valve that device also includes being arranged on second branch road is closed, first control valve and the second control valve are used respectively
In control tie point and the break-make of the second branch road.
Preferably, the switching device also includes being arranged on the output end of the gas-liquid separator and the input of compressor
Between the 3rd control valve, for controlling input of the refrigerant from the gas-liquid separator to the compressor.
Preferably, the input of the compressor is provided with the first input port, the gas output end of the gas-liquid separator
It is connected with the output end of the solar thermal collector by first input port with the compressor；Or the compression
The input of machine is provided with two input ports, respectively the first input port and the second input port, wherein, the gas-liquid separator
Gas output end is connected with first input port, and the output end of the solar thermal collector is connected with second input port
Connect.
Preferably, second input port is located at the bottom or bottom of the compressor.
Preferably, temperature sensor and/or pressure sensor are provided with the solar thermal collector.
On the other hand, the present invention uses following technical scheme：
A kind of air-conditioning system, controller is provided with the air-conditioning system, the air-conditioning system includes above-mentioned heat pump system
System.
Another further aspect, the present invention use following technical scheme：
A kind of control method of air-conditioning system, the control method include judging that the solar thermal collector heating refrigerant arrives
The step of the time required to air-conditioning system specified states, ambient temperature conditions are judged according to the required time, and according to the ring of judgement
Border temperature regime controls the mode of communicating of the heat pump and/or the method for operation of the control air-conditioning system.
Preferably, the first scheduled time T1 is set in the controller, when solar thermal collector heating refrigerant arrives
When being less than first scheduled time T1 the time required to system specified states, the controller judges outdoor environment temperature for height,
Now, refrigerant is only heated by the solar thermal collector, the compressor does not work；And/or improve the refrigeration of air-conditioning system
Amount.
Preferably, when the controller judges outdoor environment temperature to be high, the controller control is accelerated described in detection too
The pressure of collecting plate and/or the frequency of temperature of positive energy heat collector.
Preferably, the second scheduled time T2 is set in the controller, when solar thermal collector heating refrigerant arrives
When being more than or equal to the first scheduled time T1 the time required to system specified states and being less than the second scheduled time T2, controller is according to collection
Hot plate feedack judges that environment temperature is not high, and now, the controller controls the solar thermal collector and compressor simultaneously
Through transport row；And/or the controller controls the air-conditioning system to reduce power, so as to reduce refrigerating capacity.
Preferably, it is pre- more than or equal to second the time required to the solar thermal collector heats refrigerant to system specified states
Fix time T2 when, the controller judges outdoor environment temperature to be low, now,
The controller controls the solar thermal collector and compressor series operation；And/or
The controller controls the air-conditioning system further to reduce power, so as to further reduce refrigerating capacity.
It is auxiliary using solar heat by setting solar thermal collector to collect the heat refrigerant of sunlight in the application
Operation of air conditioner is helped, solves the single form that traditional air conditioner relies on merely compressor compresses refrigerant, is the fine benefit of traditional air conditioner
Fill, while reduce the number of run of compressor, save air-conditioning and use electric energy, and substantially increase the service life of compressor；
Meanwhile in the application, solar thermal collector collection caloric information is fed back to air-conditioning system so that air-conditioning system can be according to reality
When environment temperature regulation operational mode, make operation of air conditioner more energy efficient, more environmentally friendly.
Brief description of the drawings
By the description to the embodiment of the present invention referring to the drawings, above-mentioned and other purpose of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the schematic diagram for the heat pump that specific embodiment of the invention embodiment one provides；
Fig. 2 shows the schematic diagram for the heat pump that specific embodiment of the invention embodiment two provides.
Embodiment
Below based on embodiment, present invention is described, it should be understood by one skilled in the art that provided herein
Accompanying drawing is provided to the purpose of explanation, and accompanying drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc.
Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but is not limited to "
Justice.
As shown in figure 1, the heat pump that the application provides is included in the compressor 1 set on refrigerant flow, four-way commutation
Valve 2, First Heat Exchanger 3, the second heat exchanger 4, gas-liquid separator 5 and solar thermal collector 6.Preferably, the solar energy heating
Device 6 includes solar heat-collection plate, and solar energy heat collection pipe is provided with solar heat-collection plate, is set on the solar heat-collection plate
There are the input being connected with solar energy heat collection pipe and output end.Wherein, the solar thermal collector 6 can be with the compressor
1 forms stream in series or in parallel, switching device is provided with the branch road of the parallel flow paths, for controlling the branch road
Connection or cut-off, the switchgear configurations is so that the heat pump have the first mode of communicating and/or the second connection
Mode, in first mode of communicating, the solar thermal collector works independently, in second mode of communicating, the sun
Can heat collector and the compression mechanism into parallel flow paths.Preferably, the switching device is also configured to so that the heat pump
With third connecting mode, in the third connecting mode, the solar thermal collector and the compression mechanism are into serial flow circuit.
Embodiment one：
Specifically, the output end of the compressor 1 and solar thermal collector 6 is connected to described four through first flow path 10 jointly
The first port 21 of logical reversal valve 2, one end of the First Heat Exchanger 3 are connected to the second port 22 of the four-way reversing valve 2,
One end of second heat exchanger 4 is connected to the 3rd port 23 of the four-way reversing valve 2, and the 4th of the four-way reversing valve 2 the
Port 24 is connected to the input of gas-liquid separator 5.The first port 21 of the gas-liquid separator 5 and four-way reversing valve 2 it
Between be provided with the compressor 1 and solar thermal collector 6, the compressor 1 and solar thermal collector 6 can be First Heat Exchanger
3 or second heat exchanger 4 gaseous coolant of HTHP is provided, the heat pump in the application when in use, can be according to reality
The working condition of border situation control compressor 1 and solar thermal collector 6, for example, the 6 independent work of solar thermal collector can be made
Make, compressor 1 is not worked, and individually heating pressurized treatments are carried out to refrigerant by the solar thermal collector 6；Or make solar energy collection
Hot device 6 and compressor 1 parallel running, heating pressurized treatments are carried out to refrigerant simultaneously by both；Or make the He of solar thermal collector 6
The series operation of compressor 1, is preheated by solar thermal collector 6 to refrigerant, and the gaseous coolant input compressor after preheating is carried out
Further processing, in this case, the refrigerant after preheating can enter compressor from the bottom of compressor 1, so can be first
The heat transfer that solar thermal collector 6 is collected to the lubricating oil in compressor 1, lubricating oil can be heated, prevent from lubricating
Oil solidification causes compressor stuck.The heat in refrigerant after now preheating can play the work of the heat tape in compressor
With the heat tape in compressor can not have to inputing power, can effectively utilize solar energy, economize on resources.Solar energy heating
The control of the carrying out practically of device 6 and compressor 1 may be such that operation and the ambient conditions real-time contacts of heat pump, effectively save can provide
Source (has a detailed description) behind specific control aspect.
Preferably, the input of the compressor 1 is provided with two input ports, and respectively the first input port 11 and second is defeated
Entrance 12, wherein, the first input port is connected with the gas output end of the gas-liquid separator 5, for gas-liquid separator 5 to be divided
Separate out and handled in the gaseous coolant input compressor 1 come.The gas output end of the gas-liquid separator 5 also with the sun
The input of energy heat collector 6 is connected, and the gaseous coolant for gas-liquid separator 5 to be separated inputs solar thermal collector 6
Inside handled.Preferably, pump 51 is provided with the pipeline between the gas-liquid separator 5 and solar thermal collector 6, the pump
51 setting can accelerate the conveying from gas-liquid separator 5 to solar thermal collector 6.In a further preferred embodiment, it is described
The input of solar thermal collector 6 is also connected (not shown) with the fluid output port of the gas-liquid separator 5, for by gas
Liquid refrigerants in liquid/gas separator 5, which is input in solar thermal collector 6, carries out heating pressurization.Preferably, second input port
12 are located at the bottom or bottom of the compressor so that can be from described from the refrigerant after the solar thermal collector 6 preheating
The bottom or bottom of compressor 1 enter in compressor, are heated so as to be pointed to compress the lubricating oil of motor spindle.
In one preferred embodiment, the output end of the solar thermal collector 6 is provided with two branch roads, is respectively：Connect solar energy collection
The output end of hot device 6 and the tie point 61 of first flow path 10, connect solar thermal collector 6 output end and compressor 1 the
Second branch road 62 of two input ports 12, it is respectively used to through the heated heat exchange of gaseous coolant input first of solar thermal collector 6
In the heat exchanger 4 of device 3/ second or compressor 1.Preferably, the first control valve 611 is provided with the tie point 61,
The second control valve 621 is provided with second branch road 62, the control valve 621 of the first control valve 611 and second is preferably magnetic valve,
It is respectively used to control the break-make of the branch road 62 of tie point 61 and second.In order to control refrigerant from the gas-liquid separator 5 to described
The input of compressor 1, is provided with the branch road between the output end of the gas-liquid separator 5 and the input of compressor 1
Three control valves 13, the 3rd control valve 13 preferably magnetic valve, the break-make of the output for controlling compressor 1.
Further, the application also provides a kind of air-conditioning system, and the air-conditioning system is provided with the heat pump in the application,
The air-conditioning system can make full use of the solar energy of nature, while environment temperature feelings can be judged according to solar energy change over condition
Condition, air-conditioning system is automatically controlled in real time, can effectively avoid the wasting of resources.Preferably, in the air-conditioning system
Controller (not shown) is provided with, for controlling the operation of air-conditioning system.
In a preferred embodiment, temperature sensor and pressure sensor are provided with the air-conditioning system (in figure
It is not shown), the temperature and pressure for the refrigerant being respectively used in sensing solar thermal collector 6, the controller gathers temperature biography
The operation that the result of sensor and pressure sensor sensing is used for air-conditioning system is controlled.
Further, the application also provides the control method of above-mentioned air-conditioning system, and the control method includes judging the sun
Energy heat collector 6 heats the step of refrigerant is to system specified states required time, judges ambient temperature conditions according to the required time,
And then thus control the opening and closing of each stream in heat pump, branch road to control the operation of heat pump, meanwhile, according to judgement
Ambient temperature conditions control the operation of air-conditioning system.
Specifically, in a preferred embodiment, the first scheduled time T1 is set in the controller, such as this is first predetermined
Time is 0.5-3 minutes, preferably 1 minute, is less than the time required to solar thermal collector 6 heats refrigerant to system specified states
First scheduled time T1, the information that controller feeds back according to solar thermal collector 6 judge outdoor environment temperature height, sunlight
Abundance, the collecting plate collection heat of solar thermal collector 6 is more, and now controller judges only use solar thermal collector 6 to add
Hot refrigerant can meet system requirements, and then controller controls the first control valve 611 to open, and control the second control valve 621 and the
Three control valves 13 are closed, and compressor 1 is shut down, and the gaseous coolant exported from the output end of solar thermal collector 6 is through described first
Branch road 61, first flow path 10, which are flowed into the heat exchanger 4 of First Heat Exchanger 3 or second, carries out heat exchange (according to four-way reversing valve 2
Particular state determines to be introduced into First Heat Exchanger 3 or be introduced into the second heat exchanger 4, and this is prior art, no longer superfluous herein
State)；Air-conditioning system controls the operational mode of itself according to feedback information simultaneously, specifically, feeds back external environment temperature in such cases
Degree is high, then increases power output, such as increases the operation power of blower fan, meets indoor user demand so as to increase refrigerating capacity, and
By improving the power of pump 51, accelerate circulation rate of the refrigerant on the collecting plate of solar thermal collector 6, increase refrigerant output.
Simultaneously as environment temperature is higher, air-conditioning system is protection system safety, and controller can also control quickening detection solar energy collection
The pressure of collecting plate and the frequency of temperature of hot device 6, when hypertonia, the sunshading board expansion on Air-condition system control collecting plate
Angle, the absorption of heat is reduced, to ensure that air-conditioning system is stable, reliable.
The second scheduled time T2 is set in the controller, second scheduled time T2 is more than the first scheduled time T1, such as
It is chosen for 4-6 minutes, preferably 5 minutes.It is more than or equal to first the time required to collecting plate heats refrigerant to system specified states
Scheduled time T1 and when being less than the second scheduled time T2, controller according to collecting plate feedack judge sunlight it is not sufficient enough or
Environment temperature is not high, can not meet system requirements only by collecting plate heating refrigerant, now controller feeds back according to collecting plate
Information control compressor 1 is opened, and controls the first control valve 611, the 3rd control valve 13 to open, and the second control valve 621 is closed, and is made
Obtain tie point 61 to open, the second branch road 62 is closed, and the refrigerant exported from the gas output end of the gas-liquid separator 5 enters respectively
Enter in solar thermal collector 6 and compressor 1, the collecting plate and the parallel running of compressor 1, common transport of solar thermal collector 6 are cold
Matchmaker meets system requirements.Now, the controller controls the air-conditioning system to reduce power, that is to say, that air-conditioner set frequency reducing is transported
OK, compressor operating frequency is reduced, so as to reduce the power of the assembling unit.
When being more than or equal to for second scheduled time the time required to collecting plate heats refrigerant to system specified states, collecting plate is received
Heat-collecting capacity heating refrigerant is slower, and the information that controller feeds back according to solar thermal collector 6 judges that outdoor environment temperature is relatively low, sun
Light is inadequate.Thus refrigerant can not be heated to system specified states by judging the collecting plate of solar thermal collector 6, now control second
Control valve 621 is opened, and controls the first control valve 611 and the 3rd control valve 13 to close so that the solar thermal collector 6 and compression
The series operation of machine 1, through the heated refrigerant of the solar thermal collector 6 through second branch road 62 into compressor 1 continue into
Row processing, solar thermal collector 6 are mainly used in refrigerant to preheat.The treated refrigerant of the solar thermal collector 6 is through compressor 1
The second input port 12 enter from the bottom of compressor 1 in compressor, so can be first being received through the solar thermal collector 6
The heat transfer of collection can play a part of compressor heat tape heating lubricating oil, can save electricity to the lubricating oil in compressor 1
The problem of waste of resource, is heated in heating tape, prevents oil solidification from causing compressor stuck.Controller can be according to solar energy heating simultaneously
The management information system output of the collecting plate Real-time Feedback of device 6, reduces power, reduces refrigerating capacity etc., ensure system accordingly
Energy saving in running.
Embodiment two：
The embodiment most contents are identical with embodiment one, and identical part is not repeated, below it is main introduce with it is real
Apply the different part of example one.
As shown in Fig. 2 in this embodiment, first input port 11, the second branch road 62 are provided only with compressor 1
It is connected with first input port 11, enters from the refrigerant of the solar thermal collector 6 output through first input port 11 and compress
It is further processed in machine 1.
Heat pump and air-conditioning system in the application, the collecting plate of solar thermal collector can be made full use of to collect the sun
And the heat of surrounding enviroment, auxiliary heating refrigerant, refrigerant be heated to be high temperature, high pressure gas, the pressure sensing in collecting plate
When device, temperature sensor detect that the pressure of refrigerant, temperature reach default value, by controlling control valve, such as magnetic valve
Collecting plate valve is opened, the refrigerant of HTHP is transferred to heat exchanger heat exchange, while gas-liquid separator is the gaseous state after separation
Refrigerant is drawn back in collecting plate by pump 51, and it is refrigeration, heating to realize air-conditioning；If during amount of heat deficiency, solar thermal collector
Collecting plate heating refrigerant reduces compressor output as being used after compressor recompression is transferred to after preheating；Handle collects simultaneously
Caloric information feed back to air-conditioning system, control air conditioning operating mode realizes energy-saving run.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be free
Ground combination, superposition.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, it is equal
Replace, improve etc., it should be included in the scope of the protection.
Claims (17)
1. a kind of heat pump, it is characterised in that be included in the compressor set on refrigerant flow, First Heat Exchanger, second change
Hot device and solar thermal collector, switching device is additionally provided with the refrigerant flow, and the switchgear configurations are described to cause
Heat pump has the first mode of communicating and/or the second mode of communicating, in first mode of communicating, the solar thermal collector
Work independently, in second mode of communicating, the solar thermal collector and the compression mechanism are into parallel flow paths.
2. heat pump according to claim 1, it is characterised in that the switching device is also configured to so that the heat pump
System has third connecting mode, and in the third connecting mode, the solar thermal collector and the compression mechanism are into connecting
Stream.
3. heat pump according to claim 2, it is characterised in that also including gas-liquid separator, the compressor and too
The output end of positive energy heat collector is commonly connected to the first end of the First Heat Exchanger or the second heat exchanger, second heat exchange
Second end of device or First Heat Exchanger is connected to the input of the gas-liquid separator, the gas output of the gas-liquid separator
End is respectively connecting to the input of the compressor and solar thermal collector.
4. heat pump according to claim 3, it is characterised in that also including four-way reversing valve, the compressor and too
It is positive can the output end of heat collector be connected to the first port of the four-way reversing valve through first flow path, the of the First Heat Exchanger
One end is connected to the second port of the four-way reversing valve, and the first end of second heat exchanger is connected to the four-way reversing valve
The 3rd port, the 4th port of the four-way reversing valve is connected to the input of the gas-liquid separator.
5. heat pump according to claim 3, it is characterised in that the fluid output port of the gas-liquid separator with it is described
The input of solar thermal collector is connected.
6. heat pump according to claim 3, it is characterised in that the output end of the solar thermal collector is provided with two
Individual branch road, it is respectively：Connect the of output end and the First Heat Exchanger of solar thermal collector or the first end of the second heat exchanger
One branch road, connect the second branch road of the output end of solar thermal collector and the input of compressor.
7. heat pump according to claim 6, it is characterised in that the switching device includes being arranged on described first
The first control valve on road, and/or, the switching device also includes the second control valve being arranged on second branch road, institute
State the first control valve and the second control valve is respectively used to control tie point and the break-make of the second branch road.
8. heat pump according to claim 7, it is characterised in that the switching device also includes being arranged on the gas-liquid
The 3rd control valve between the output end of separator and the input of compressor, for control refrigerant from the gas-liquid separator to
The input of the compressor.
9. heat pump according to claim 6, it is characterised in that
The input of the compressor is provided with the first input port, the gas output end of the gas-liquid separator and the solar energy
The output end of heat collector is connected by first input port with the compressor；Or
The input of the compressor is provided with two input ports, respectively the first input port and the second input port, wherein, it is described
The gas output end of gas-liquid separator is connected with first input port, the output end of the solar thermal collector and described the
Two input ports are connected.
10. heat pump according to claim 9, it is characterised in that second input port is located at the compressor
Bottom or bottom.
11. according to the heat pump described in one of claim 1-10, it is characterised in that set on the solar thermal collector
There are temperature sensor and/or pressure sensor.
12. a kind of air-conditioning system, controller is provided with the air-conditioning system, it is characterised in that the air-conditioning system includes power
Profit requires the heat pump described in one of 1-11.
13. the control method of the air-conditioning system described in a kind of claim 12, it is characterised in that the control method includes judging
The solar thermal collector heats the step of refrigerant is to air-conditioning system specified states required time, judges ring according to the required time
Border temperature regime, and control the mode of communicating of the heat pump according to the ambient temperature conditions of judgement and/or control the sky
The method of operation of adjusting system.
14. control method according to claim 13, it is characterised in that
The first scheduled time T1 is set in the controller, when the solar thermal collector heats refrigerant to system specified states
When required time is less than first scheduled time T1, the controller judges outdoor environment temperature for height,
Now, the controller control only heats refrigerant by the solar thermal collector, and the compressor does not work；And/or
The controller control improves the refrigerating capacity of air-conditioning system.
15. control method according to claim 14, it is characterised in that when the controller judges that outdoor environment temperature is
Gao Shi, the controller control are accelerated to detect the pressure of collecting plate and/or the frequency of temperature of the solar thermal collector.
16. control method according to claim 14, it is characterised in that
The second scheduled time T2 is set in the controller, when the solar thermal collector heats refrigerant to system specified states
Required time be more than or equal to the first scheduled time T1 and when being less than the second scheduled time T2, letter that controller feeds back according to collecting plate
Breath judges that environment temperature is not high, now,
The controller controls solar thermal collector and the compressor parallel operation；And/or
The controller controls the air-conditioning system to reduce power, so as to reduce refrigerating capacity.
17. control method according to claim 16, it is characterised in that
When being more than or equal to the second scheduled time T2 the time required to the solar thermal collector heats refrigerant to system specified states,
The controller judges outdoor environment temperature to be low, now,
The controller controls the solar thermal collector and compressor series operation；And/or
The controller controls the air-conditioning system further to reduce power, so as to further reduce refrigerating capacity.
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| CN112444008A (en) * | 2020-12-21 | 2021-03-05 | 广东纽恩泰新能源科技发展有限公司 | Fluorine system solar heat exchanger, series heat pump system and control method |
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| CN107514718B (en) | 2023-08-11 |
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