CN108362040A - A kind of net for air-source heat pump units of continuous heat supply - Google Patents
A kind of net for air-source heat pump units of continuous heat supply Download PDFInfo
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- CN108362040A CN108362040A CN201810298951.XA CN201810298951A CN108362040A CN 108362040 A CN108362040 A CN 108362040A CN 201810298951 A CN201810298951 A CN 201810298951A CN 108362040 A CN108362040 A CN 108362040A
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- defrosting
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- water
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- 238000010257 thawing Methods 0.000 claims abstract description 168
- 230000007246 mechanism Effects 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 230000006835 compression Effects 0.000 claims abstract description 52
- 238000007906 compression Methods 0.000 claims abstract description 52
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 42
- 239000011737 fluorine Substances 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims description 82
- 238000005057 refrigeration Methods 0.000 claims description 78
- 230000002457 bidirectional effect Effects 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 33
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- 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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of net for air-source heat pump units of continuous heat supply, including compressor unit, indoor water heat exchange unit, quasi- two-stage compression unit, outdoor air heat exchange unit and defrosting branching unit.The net for air-source heat pump units of the present invention takes heat and wheel dynamic formula defrosting technical solution using the completely new quasi- two-stage compression of air source heat pump under low ambient temperature operating mode, the heat exchange of water side twin-stage and more by-passing types, gas supplementing opening is added to compressor first, intermediate plate heat exchanger is added in systems, is recycled with constituting quasi- secondary compression heat pump；Secondly, indoor water heat exchange unit is exchanged heat using twin-stage, setting two-stage heat exchanger, to improve the temperature of recirculated water to greatest extent and for return water temperature；Finally, by air source heat pump outdoor air heat exchanger be set as at least two can independently operated branch take heat and defrosting system, defrosting operation is carried out to the fluorine air heat-exchange mechanism of each branch with moving in turn one by one, to realize move in turn accurate defrosting and continuous heat supply.
Description
Technical field
The present invention relates to a kind of net for air-source heat pump units, more particularly to a kind of net for air-source heat pump units of continuous heat supply.
Background technology
Air source heat pump be it is a kind of making the energy saver that heat flows to from low level heat energy air high-order heat source using high potential,
It is a kind of form of heat pump.Air source heat pump is applied widely, can run throughout the year, is guarded without special messenger, fortune
Row is at low cost, and energy-efficient effect is very prominent, belongs to the product of environment-friendly type.Its not discharge of pollutant in the process of running,
Human body will not be damaged simultaneously, possess good social benefit, therefore in China's regional heating cold in winter and hot in summer, refrigeration
It is widely used.
But in north cold area (Huaihe River north domain), as outdoor temperature reduces, the application generation of air source heat pump is many
Problem：The problems such as suction pressure of compressor is lower, and compression ratio becomes larger, and delivery temperature is got higher, and heating capacity and efficiency are greatly reduced,
These problems seriously affect the operational reliability and heating system stability of heat pump unit.
Meanwhile when net for air-source heat pump units winter operation, when outdoor air heat exchanger surface temperature is less than surrounding air
Dew-point temperature and less than 0 DEG C when, heat exchanger surface will frosting.Frost is formed such that heat exchanger heat transfer effect deteriorates, and increases
Air flow resistance is added so that the heat capacity of unit reduces, and unit can influence heat pump unit heat supply out of service when serious.
The frosting of air source heat pump winter outdoor heat exchanger is the key that restrict its application and development common problem at present with defrosting.
Currently, the defrosting mode of air source heat pump usually has：Natural defrosting method, inverse cycle defrosting method, electric defrosting method etc..And
From the point of view of actual effect, these conventional methods cannot achieve the continuous heat supply of defrosting operating mode all there is insufficient and defect, past
Toward the frequent start-stop of compressor and the frequent switching of four-way reversing valve can be caused, the fluctuation of heat pump supply water temperature, shadow will also result in
Ring indoor heating effect etc..Furthermore existing air source heat pump supply water temperature is relatively low, and flow is too small, causes conveying energy consumption excessively high, no
Conducive to energy saving.
Invention content
The purpose of the present invention is being directed to heating capacity and efficiency under existing air source heat pump low temperature to be greatly reduced, and can not be real
The problem of continuous heat supply of existing defrosting operating mode, a kind of net for air-source heat pump units of continuous heat supply is proposed, to realize defrosting operating mode
Continuous heat supply, and the temperature and supply backwater temperature difference of recirculated water can be improved to greatest extent, to promote the conveying effect of recirculated water
Rate.
To achieve the above object, the present invention provides a kind of net for air-source heat pump units of continuous heat supply, including compressor list
Member, indoor water heat exchange unit, quasi- two-stage compression unit, outdoor air heat exchange unit and defrosting branching unit；
The compressor unit includes sequentially connected gas-liquid separator, compressor, oil eliminator, bindiny mechanism；
The indoor water heat exchange unit includes and the bindiny mechanism sequentially connected fluorine gas-water- to-water heat exchanger, fluorine phase transformation-water
Heat exchanger, heat transferring medium pass through water inlet, fluorine phase transformation-water- to-water heat exchanger, fluorine gas-water- to-water heat exchanger, water out successively；
The quasi- two-stage compression unit includes the plate heat exchanger being connected with the fluorine phase transformation-water- to-water heat exchanger, described board-like
The quasi- two-stage compression circuit that branch is equipped with heating circuit and is connected to the compressor on heat exchanger；
The outdoor air heat exchange unit includes the fluoro- air heat-exchange mechanism that at least two groups are arranged in parallel, the fluoro- air
The heating branch and defrosting branch that heat exchange mechanisms include fluoro- air heat exchanger, are arranged in parallel on the fluoro- air heat exchanger with
And the wind turbine on the fluoro- air heat exchanger is set, the heating branch is equipped with shunting system thermoelectron expansion valve and unidirectionally
Valve, the defrosting branch are equipped with branch defrosting solenoid valve；
The defrosting branching unit includes the defrosting access being arranged between the oil eliminator and bindiny mechanism, described to melt
Defrosting solenoid valve, bidirectional guide mechanism are equipped on white access successively, the defrosting solenoid valve goes back to liquid side with bidirectional guide mechanism
Between branch be connected respectively with the defrosting branch, between the tapping side and bindiny mechanism of the bidirectional guide mechanism branch distinguish
It is connected with the heating branch；
The net for air-source heat pump units only carries out defrosting to the fluoro- air heat-exchange mechanism of one of which every time in defrosting, according to
The secondary refrigeration working medium flowed through in defrosting access, wherein at least one defrosting branch with successively through fluorine gas-water- to-water heat exchanger, fluorine phase transformation-
Refrigeration working medium after water- to-water heat exchanger, plate heat exchanger heat exchange returns liquid side mixed flow in bidirectional guide mechanism, and through bidirectional guide machine
The tapping side branch of structure flows to the heating branch in remaining fluoro- air heat-exchange mechanism respectively.
Preferably, the bindiny mechanism is four-way reversing valve.
Preferably, the indoor water heat exchange unit further includes being arranged in the fluorine phase transformation-water- to-water heat exchanger and bidirectional guide machine
Refrigeration access between structure, the refrigeration access are arranged in parallel with the heating circuit, and the refrigeration access is equipped with refrigeration electricity
Sub- expansion valve and the check valve oppositely arranged with the check valve on heating circuit.
Preferably, the both sides of shunting system thermoelectron expansion valve and check valve have been arranged in parallel refrigeration in each heating branch
Branch, the refrigeration branch are equipped with the oppositely arranged check valve of the check valve being connected with the shunting system thermoelectron expansion valve.
Preferably, the refrigeration work of the fluoro- air heat exchanger in the defrosting branch is arranged in the branch defrosting solenoid valve
The refrigeration working medium outlet side of matter entrance side, the fluoro- air heat exchanger in the defrosting branch is equipped with check valve.
Preferably, the liquid back pipe road for the bidirectional guide mechanism being connected with the defrosting branch is equipped with check valve and cuts manually
Only valve.
Preferably, the tapping side of the bidirectional guide mechanism is equipped with check valve, and the bidirectional guide mechanism goes out liquid
In parallel between side and time liquid side to be equipped with refrigeration access, the refrigeration access is equipped with check valve.
Preferably, in the fluoro- air heat exchanger, air passes sequentially through heating branch, defrosting under the driving of wind turbine
Branch.
Preferably, the net for air-source heat pump units every time melts the fluoro- air heat-exchange mechanism of one of which in defrosting
Frost carries out defrosting operation with moving in turn one by one to each Zu Fu- air heat-exchanges mechanism.
Preferably, the outdoor air heat exchange unit includes 4~12 groups of fluoro- air heat-exchange mechanisms being arranged in parallel.
Preferably, the heating circuit is directly connected with the plate heat exchanger and is equipped with check valve, the standard in back segment
Two-stage compression circuit includes the quasi- two-stage compression solenoid valve being successively set on pipeline, quasi- two-stage compression electric expansion valve, board-like
Heat exchanger, check valve are simultaneously finally connected with the stage compressor；
In heating, the refrigeration working medium in the heating circuit is with the refrigeration working medium in quasi- two-stage compression circuit in the plate
Heat exchange is carried out in formula heat exchanger.
Based on the above-mentioned technical proposal, it is an advantage of the invention that：
The net for air-source heat pump units of the continuous heat supply of the present invention utilizes the Gas-supplying enthalpy-increasing technology of quasi- two-stage compression, water side twin-stage
Heat exchange and branch move in turn the combination of defrosting and continuous heat supply technology, have at least the following advantages：
1, the delivery temperature that one stage of compression is reduced using the quasi- two-stage compression of Gas-supplying enthalpy-increasing reduces compression ratio, improves
Operation stability and efficiency of the net for air-source heat pump units in worst cold case, keeps the application range of net for air-source heat pump units wider,
To make branch move in turn defrosting and the application of continuous heat supply technical solution it is more wide；
2, when defrosting operating mode, quasi- two-stage compression system and the branch defrosting system that moves in turn are coupled, and contribute to smooth compression machine
The fluctuation of suction tolerance can avoid the protectiveness occurred because pressure of inspiration(Pi) is too low and shut down, further ensures air source heat pump machine
The operation stability of group；
3, indoor water heat exchange unit uses the technical solution of twin-stage heat exchange, and fluorine phase transformation-water- to-water heat exchanger and fluorine gas-is respectively set
Water- to-water heat exchanger is utilized respectively the sensible heat and latent heat of refrigeration working medium, can improve the temperature of recirculated water to greatest extent and for return water
The temperature difference, to promote the transfer efficiency of recirculated water；Under winter worst cold case, twin-stage exchanges heat and branch moves in turn, and defrosting is combined,
Heating system energy consumption can be further decreased；
4, the heating of other branches is not influenced in net for air-source heat pump units of the invention when certain branch defrosting, heat pump unit can be real
The continuous heat supply of existing system avoids making unit refrigeration and heating frequency by four-way reversing valve when existing net for air-source heat pump units defrosting
Numerous switching improves the effective heating time of heat pump unit and winter gross heat input, improves air source heat pump Winter heat supply effect；
5, when the four-way reversing valve in net for air-source heat pump units of the invention is only used for cooling in summer and winter heating's conversion
Switching, defrosting need not switch when operating, and greatly reduce switch (start and stop) number of four-way reversing valve (including compressor), be promoted
The reliability of net for air-source heat pump units；
6, the defrosting heat-exchanging loop that outdoor air heat exchanging part is added in net for air-source heat pump units of the invention makes system
Heat exchange area increases, and heat pump unit refrigeration and the Energy Efficiency Ratio of heating improve；
7, the wind turbine of existing air source heat pump outdoor heat exchanger is shared, using the consistent mode of start and stop, the wind of single wind turbine
Amount is larger with noise, and the present invention uses more branch air heat exchangers and its fan design thinking, reduces the wind of single wind turbine
Amount and noise, unit overall noise can be reduced greatly.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the net for air-source heat pump units schematic diagram of continuous heat supply.
Specific implementation mode
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
The present invention provides a kind of net for air-source heat pump units of continuous heat supply, as shown in Figure 1, being shown the present invention's
A kind of preferred embodiment.The net for air-source heat pump units of the present invention includes compressor unit, indoor water heat exchange unit, quasi- two level pressure
Contracting unit, outdoor air heat exchange unit and defrosting branching unit.
The compressor unit includes sequentially connected gas-liquid separator 9, compressor 1, oil eliminator 2, bindiny mechanism 3；
The indoor water heat exchange unit includes and the bindiny mechanism 3 sequentially connected fluorine gas-water- to-water heat exchanger 6-2, fluorine phase
Change-water- to-water heat exchanger 6-1, heat transferring medium successively pass through water inlet 16, fluorine phase transformation-water- to-water heat exchanger 6-1, fluorine gas-water- to-water heat exchanger 6-2,
Water out 15；
The quasi- two-stage compression unit includes the plate heat exchanger 17 being connected with the fluorine phase transformation-water- to-water heat exchanger 6-1, described
The quasi- two-stage compression circuit that branch is equipped with heating circuit and is connected to the compressor 1 on plate heat exchanger 17；
The outdoor air heat exchange unit includes the fluoro- air heat-exchange mechanism that at least two groups are arranged in parallel, the fluoro- air
The heating branch and defrosting branch that heat exchange mechanisms include fluoro- air heat exchanger, are arranged in parallel on the fluoro- air heat exchanger with
And the wind turbine on the fluoro- air heat exchanger is set, the heating branch is equipped with shunting system thermoelectron expansion valve and unidirectionally
Valve 8, the defrosting branch are equipped with branch defrosting solenoid valve；
The defrosting branching unit includes the defrosting access being arranged between the oil eliminator 2 and bindiny mechanism 3, described
Be equipped with hand stop valve 5, defrosting solenoid valve 4, bidirectional guide mechanism 10 on defrosting access successively, the defrosting solenoid valve 4 with it is double
It is connected respectively with the defrosting branch to branch between time liquid side of deflector 10, the tapping side of the bidirectional guide mechanism 10
Branch is connected with the heating branch respectively between bindiny mechanism 3；
The net for air-source heat pump units only carries out defrosting to the fluoro- air heat-exchange mechanism of one of which every time in defrosting, according to
The secondary refrigeration working medium flowed through in defrosting access, wherein at least one defrosting branch with successively through fluorine gas-water- to-water heat exchanger 6-2, fluorine phase
Refrigeration working medium after change-water- to-water heat exchanger 6-1, plate heat exchanger 17 exchange heat returns liquid side mixed flow in bidirectional guide mechanism 10, and passes through
The tapping side branch of bidirectional guide mechanism 10 flows to the heating branch in remaining fluoro- air heat-exchange mechanism respectively.
The net for air-source heat pump units of the present invention is combined using Gas-supplying enthalpy-increasing, the heat exchange of water side twin-stage with principle of time-space
Integrated technology route, propose the quasi- two-stage compression that air source heat pump is completely new under low ambient temperature operating mode, the heat exchange of water side twin-stage and
More by-passing types take heat and wheel dynamic formula defrosting technical solution, add gas supplementing opening to compressor first, add intermediate plate in systems
Heat exchanger is recycled with constituting quasi- secondary compression heat pump；Secondly, indoor water heat exchange unit is exchanged heat using twin-stage, and setting two-stage exchanges heat
Device；Finally, by air source heat pump outdoor air heat exchanger be set as at least two can independently operated branch take heat with defrosting system
System.To a heating branch and defrosting branch are individually respectively set per outdoor air heat-exchange system independent all the way, pass through electricity
The pipelines such as opening and closing, the check valve of magnet valve and electric expansion valve and pipe fitting realize the switching of defrosting operating mode and heating condition.Wherein one
The fluoro- air heat-exchange mechanism in road do not influenced while defrosting the fortune of the fluoro- air heat-exchange mechanism branch heating condition of other branches
Row carries out defrosting operation with moving in turn one by one, to realize move in turn accurate defrosting and company to the fluoro- air heat-exchange mechanism of each branch
Continuous heat supply.
Present system is divided into five parts, respectively compressor unit, indoor water heat exchange unit, quasi- two-stage compression list
Member, outdoor air heat exchange unit and defrosting branching unit.
Specifically, the compressor unit includes sequentially connected gas-liquid separator 9, compressor 1, oil eliminator 2, connection
Mechanism 3.Preferably, the compressor 1 is frequency-changeable compressor, to obtain better energy-saving effect.To make compressor 1 complete standard two
Grade compression, the compressor 1 is equipped with auxilairy air intake, for sucking the refrigeration working medium in quasi- two-stage compression circuit.When this hair
When bright net for air-source heat pump units is only used for heating, the bindiny mechanism 3 can be used pipeline and be directly connected to, without configuration on pipeline
Valve, the oil eliminator 2 are connected to fluorine gas-direct copper pipes of water- to-water heat exchanger 6-2, the gas-liquid separator 9 and fluoro- air heat-exchange
The direct copper pipe connection of mechanism, net for air-source heat pump units is simply possible to use in heating at this time, it is not necessary that four-way valve is arranged.
The indoor water heat exchange unit includes and the bindiny mechanism 3 sequentially connected fluorine gas-water- to-water heat exchanger 6-2, fluorine phase
Change-water- to-water heat exchanger 6-1, heat transferring medium successively pass through water inlet 16, fluorine phase transformation-water- to-water heat exchanger 6-1, fluorine gas-water- to-water heat exchanger 6-2,
Water out 15.The indoor water heat exchange unit, as condensation side, evaporation side can be used as in refrigeration, passes through setting in heating
Water out 15 and water inlet 16, user side can be directly connected to, to provide hot water or cold water to the user.Indoor water exchanges heat
Unit uses the technical solution of twin-stage heat exchange, is utilized respectively the sensible heat and latent heat of refrigeration working medium, can improve and follow to greatest extent
The temperature and supply backwater temperature difference of ring water, to promote the transfer efficiency of recirculated water.
The quasi- two-stage compression unit includes the plate heat exchanger 17 being connected with the fluorine phase transformation-water- to-water heat exchanger 6-1, described
Branch is equipped with heating circuit and quasi- two-stage compression circuit on plate heat exchanger 17.In heating, the refrigeration in the heating circuit
Working medium carries out heat exchange with the refrigeration working medium in quasi- two-stage compression circuit in the plate heat exchanger 17.The heating circuit is straight
It connects and is connected with the plate heat exchanger 17 and is equipped with check valve 8 in back segment, refrigeration working medium liquid is directly entered plate heat exchanger 17.
The quasi- two-stage compression circuit includes the quasi- two-stage compression solenoid valve 19 being successively set on pipeline, quasi- two-stage compression electronic expansion
Valve 18, plate heat exchanger 17, check valve 8 are simultaneously finally connected with the compressor 1, and refrigeration working medium liquid is through quasi- two-stage compression electromagnetism
Also enter plate heat exchanger 17 after valve 19 and quasi- 18 reducing pressure by regulating flow of two-stage compression electric expansion valve, this two parts refrigeration working medium is in institute
It states after generating heat exchange in plate heat exchanger 17, the refrigeration working medium in the quasi- two-stage compression circuit becomes after gas by compressor 1
Auxilairy air intake sucking.
The outdoor air heat exchange unit includes the fluoro- air heat-exchange mechanism that at least two groups are arranged in parallel, the fluoro- air
The heating branch and defrosting branch that heat exchange mechanisms include fluoro- air heat exchanger, are arranged in parallel on the fluoro- air heat exchanger with
And the wind turbine on the fluoro- air heat exchanger is set, the heating branch is equipped with shunting system thermoelectron expansion valve and unidirectionally
Valve 8, the defrosting branch are equipped with branch defrosting solenoid valve.
As shown in Figure 1, the net for air-source heat pump units in the present embodiment has been arranged in parallel four Zu Fu- air heat-exchanges mechanisms, packet
Include the first shunting system thermoelectron expansion valve 11-1, the fluoro- air heat exchanger 13-1 of the first branch and the first branch wind turbine 14-1；Second
Shunting system thermoelectron expansion valve 11-2, the fluoro- air heat exchanger 13-2 of the second branch and the second branch wind turbine 14-2；Third shunting system
The fluoro- air heat exchanger 13-3 of thermoelectron expansion valve 11-3, third branch and third branch wind turbine 14-3；4th shunting system thermoelectron
It is arranged on expansion valve 11-4, the fluoro- air heat exchanger 13-4 of the 4th branch and the 4th branch wind turbine 14-4 and its each pipeline unidirectional
Valve 8.Since net for air-source heat pump units is arranged in parallel multigroup fluoro- air heat-exchange mechanism, every group of fluoro- air heat exchanger individually uses
One wind turbine so that wind turbine independent control, more efficient, noise is lower.Preferably, in the fluoro- air heat exchanger, air
Under the driving of wind turbine, heating branch, defrosting branch are passed sequentially through, so that defrosting branch is arranged in the case where heating branch air
Side is swum, to obtain better defrosting effect.
The defrosting branching unit includes the defrosting access being arranged between the oil eliminator 2 and bindiny mechanism 3, described
Defrosting solenoid valve 4 and bidirectional guide mechanism 10 go back to liquid side between branch be connected respectively with the defrosting branch, it is described two-way to lead
Branch is connected with the heating branch respectively between flowing the tapping side and bindiny mechanism 3 of mechanism 10.Pass through defrosting access, oil separation
The refrigeration working medium that device 2 comes out can be delivered directly to the fluoro- air heat exchanger of a certain defrosting branch, it is made to carry out defrosting.It is described
Hand stop valve 5, defrosting solenoid valve 4, bidirectional guide mechanism 10 are equipped on defrosting access successively, the setting of hand stop valve 5 is just
Refrigeration working medium after maintenance, defrosting changes in bidirectional guide mechanism 10 with successively through fluorine gas-water- to-water heat exchanger 6-2, fluorine phase transformation-water
Refrigeration working medium after hot device 6-1, plate heat exchanger 17 exchange heat returns liquid side mixed flow in bidirectional guide mechanism 10.The bidirectional guide
The refrigeration working medium of two kinds of different pressures states is carried out mixing confluence by mechanism 10 using high speed water conservancy diversion principle such as the mode of jet stream.
As shown in Figure 1, in embodiment, the defrosting branching unit is divided into four branches, including the first branch defrosting electricity
Magnet valve 12-1, the second branch defrosting solenoid valve 12-2, third branch defrosting solenoid valve 12-3, the 4th branch defrosting solenoid valve 12-4
And its check valve 8 being arranged on each pipeline.Wherein, the net for air-source heat pump units is only fluoro- to one of which every time in defrosting
Air heat-exchange mechanism carries out defrosting, followed by the refrigeration working medium and fluorine gas-in defrosting access, wherein at least one defrosting branch
Refrigeration working medium after water- to-water heat exchanger 6-2, fluorine phase transformation-water- to-water heat exchanger 6-1, heat exchange returns liquid side mixed flow in bidirectional guide mechanism 10,
And the tapping side branch through bidirectional guide mechanism 10 flows to the heating branch in remaining fluoro- air heat-exchange mechanism respectively.
Compared to conventional air source heat pump unit, the present invention can still ensure heat supply in defrosting, by moving in turn one by one
Ground carries out defrosting operation to the fluoro- air heat-exchange mechanism of each branch, to realize move in turn accurate defrosting and continuous heat supply, heat supply
Effect is more preferable, greatly reduces start/stop of compressor number, and operation is more reliable.Simultaneously as heating time increases, to also improve
The gross heat input of unit within a certain period of time.And since the defrosting time is short, it can be achieved that accurate defrosting；Further, due to changing
Hot area increases, and Energy Efficiency Ratio can also improve so that unit can reach high efficiency grade.
Preferably, the liquid back pipe road for the bidirectional guide mechanism 10 being connected with the defrosting branch is equipped with check valve 8 and hand
Dynamic shut-off valve 5, can be effectively prevented the reflux of refrigeration working medium.In order to preferably by the refrigeration working medium after defrosting two-way
With the refrigeration working medium successively after fluoro- water- to-water heat exchanger 6, plate heat exchanger 17 exchange heat in bidirectional guide mechanism 10 in deflector 10
Return liquid side mixed flow, it is preferable that the tapping side of the bidirectional guide mechanism 10 is equipped with check valve 8, and the bidirectional guide machine
In parallel between the tapping side of structure 10 and time liquid side to be equipped with refrigeration access, the refrigeration access is equipped with check valve 8.Preferably, institute
Net for air-source heat pump units is stated in defrosting, defrosting operation is carried out to each Zu Fu- air heat-exchanges mechanism with moving in turn one by one, to real
The continuous heat supply of existing unit.
Preferably, the bindiny mechanism 3 is four-way reversing valve, switches piping connection by four-way reversing valve so that this hair
Bright net for air-source heat pump units is provided simultaneously with heating and refrigerating function.Exist at this point, the indoor water heat exchange unit further includes setting
Refrigeration access of the fluorine phase transformation-between water- to-water heat exchanger 6-1 and bidirectional guide mechanism 10, the refrigeration access heat back with described
Road is arranged in parallel, and the refrigeration access is oppositely arranged equipped with cooling electronic expansion valve 7 and with the check valve 8 on heating circuit
Check valve 8.
Preferably, the both sides of shunting system thermoelectron expansion valve and check valve 8 have been arranged in parallel system in each heating branch
Cold branch, the refrigeration branch are equipped with oppositely arranged unidirectional of the check valve 8 that is connected with the shunting system thermoelectron expansion valve
Valve 8.Preferably, the branch defrosting solenoid valve is arranged the refrigeration working medium of the fluoro- air heat exchanger in the defrosting branch and enters
The refrigeration working medium outlet side of mouthful side, the fluoro- air heat exchanger in the defrosting branch is equipped with check valve 8.
Under the heating condition for not needing defrosting, the high temperature and pressure refrigeration working medium gas come out from compressor is detached via oil
Device and four-way reversing valve are condensed into liquid, and in plate heat exchanger into heat release is carried out in fluoro- water- to-water heat exchanger (condenser)
Subcooled liquid is exchanged heat into, by check valve and bidirectional guide mechanism, respectively enters heating branch, is throttled and is dropped by electric expansion valve
Pressure, absorbs heat into fluoro- air heat exchanger (evaporator), after refrigeration working medium vaporization heat absorption, through four-way reversing valve by compressor
Cycle is completed in sucking.
When needing defrosting, the defrosting solenoid valve in defrosting branch is opened, while the heating electric expansion valve of the circuit system
It closes, the refrigeration working medium of high temperature and pressure enters fluoro- air heat exchanger (evaporator) by defrosting electric expansion valve and carries out defrosting, so
After being mixed afterwards with the refrigeration working medium for having neither part nor lot in defrosting in bidirectional guide mechanism, cycle is continued to complete into other circuits,
It can be heated while defrosting to realize.
Preferably, the outdoor air heat exchange unit includes 4~12 groups of fluoro- air heat-exchange mechanisms being arranged in parallel, to obtain
Obtain preferable defrosting effect.
The net for air-source heat pump units of the continuous heat supply of the present invention at least has the following advantages that：
1, the delivery temperature that one stage of compression is reduced using the quasi- two-stage compression of Gas-supplying enthalpy-increasing reduces compression ratio, improves
Operation stability and efficiency of the net for air-source heat pump units in worst cold case, keeps the application range of net for air-source heat pump units wider,
To make branch move in turn defrosting and the application of continuous heat supply technical solution it is more wide；
2, when defrosting operating mode, quasi- two-stage compression system and the branch defrosting system that moves in turn are coupled, and contribute to smooth compression machine
The fluctuation of suction tolerance can avoid the protectiveness occurred because pressure of inspiration(Pi) is too low and shut down, further ensures air source heat pump machine
The operation stability of group；
3, indoor water heat exchange unit uses the technical solution of twin-stage heat exchange, and fluorine phase transformation-water- to-water heat exchanger and fluorine gas-is respectively set
Water- to-water heat exchanger is utilized respectively the sensible heat and latent heat of refrigeration working medium, can improve the temperature of recirculated water to greatest extent and for return water
The temperature difference, to promote the transfer efficiency of recirculated water；Under winter worst cold case, twin-stage exchanges heat and branch moves in turn, and defrosting is combined,
Heating system energy consumption can be further decreased；
4, the heating of other branches is not influenced in net for air-source heat pump units of the invention when certain branch defrosting, heat pump unit can be real
The continuous heat supply of existing system avoids making unit refrigeration and heating frequency by four-way reversing valve when existing net for air-source heat pump units defrosting
Numerous switching improves the effective heating time of heat pump unit and winter gross heat input, improves air source heat pump Winter heat supply effect；
5, when the four-way reversing valve in net for air-source heat pump units of the invention is only used for cooling in summer and winter heating's conversion
Switching, defrosting need not switch when operating, and greatly reduce switch (start and stop) number of four-way reversing valve (including compressor), be promoted
The reliability of net for air-source heat pump units；
6, the defrosting heat-exchanging loop that outdoor air heat exchanging part is added in net for air-source heat pump units of the invention makes system
Heat exchange area increases, and heat pump unit refrigeration and the Energy Efficiency Ratio of heating improve；
7, the wind turbine of existing air source heat pump outdoor heat exchanger is shared, using the consistent mode of start and stop, the wind of single wind turbine
Amount is larger with noise, and the present invention uses more branch air heat exchangers and its fan design thinking, reduces the wind of single wind turbine
Amount and noise, unit overall noise can be reduced greatly.
As shown in Figure 1, for the fluoro- air heat-exchange mechanism being arranged in parallel by four groups, the air-source of continuous heat supply of the present invention
The principle that heat pump unit obtains above-mentioned technique effect is described below：
In winter under heating condition, indoor water heat exchange unit is arranged two-stage heat exchanger and carries out condensing heat-exchange, and outdoor air changes
The heating electric expansion valve and wind turbine of each fluoro- air heat-exchange mechanism branch of hot cell are opened.Such as：First shunting system thermoelectricity
Sub- expansion valve 11-1 and the first branch wind turbine 14-1, the second shunting system thermoelectron expansion valve 11-2 and the second branch wind turbine 14-2,
Third shunting system thermoelectron expansion valve 11-3 and third branch wind turbine 14-3, the 4th shunting system thermoelectron expansion valve 11-4 and the 4th
Branch wind turbine 14-4 is opened；Quasi- two-stage compression electric expansion valve 18 and quasi- two-stage compression solenoid valve 19 are opened；Defrosting passed part
Defrosting solenoid valve 4 and each branch defrosting solenoid valve close, such as：First branch defrosting solenoid valve 12-1, the second branch
Defrosting solenoid valve 12-2, third branch defrosting solenoid valve 12-3, the 4th branch defrosting solenoid valve 12-4 are closed；Cooling electronic expands
Valve 7 is closed.From compressor 1 come out high temperature and pressure refrigeration working medium gas via oil eliminator 2 and four-way reversing valve 3, successively into
Enter in fluorine gas-water- to-water heat exchanger 6-2 and fluorine phase transformation-water- to-water heat exchanger 6-1 and carry out heat release, is condensed into liquid.Refrigeration working medium is divided into 2 later
Road：Main road is to heat circuit, two-stage compression circuit subject to bypass.The refrigeration working medium liquid of main road is directly entered plate heat exchanger
17；The refrigeration working medium liquid of bypass is after quasi- two-stage compression solenoid valve 19 and quasi- 18 reducing pressure by regulating flow of two-stage compression electric expansion valve
Into plate heat exchanger 17.After this two parts refrigeration working medium generates heat exchange in plate heat exchanger 17, the refrigeration working medium of bypass
Become the auxilairy air intake after gas by compressor 1 to suck, the refrigeration working medium of main road becomes subcooled liquid by check valve 8 and double
To deflector 10, four heating branches are respectively enterd.In the first branch, electronics is heated by check valve 8 and the first circuit
Expansion valve 11-1 reducing pressure by regulating flow absorbs heat into fluoro- air heat exchanger 13-1；Second and third, four heating branches heating condition
Process and so on.After the refrigeration working medium vaporization heat absorption of four heating branches, converge through four-way reversing valve 3 and gas-liquid separator 9,
It is sucked by compressor 1, the refrigeration working medium of main road and bypass mixes in 1 working chamber of compressor, and pressure is discharged after further compressing
Outside contracting machine 1, heating cycle is completed.
In winter when defrosting operating mode, defrosting solenoid valve 4, hand stop valve 5 on defrosting access are opened, and are melted successively to four
White branch carries out defrosting.When one of defrosting branch carries out defrosting, the shunting system in heating branch where the defrosting branch
Thermoelectron expansion valve is closed, other heating branches are still run according to heating condition.For example, when the first branch starts defrosting, the
One branch defrosting solenoid valve 12-1 is opened, while the first shunting system thermoelectron expansion valve 11-1 is closed, the first circuit wind turbine 14-1
It is stopped, realizes the switching of heating condition and defrosting operating mode.High-temperature refrigeration working medium is by defrosting solenoid valve 12-1, into first
The fluoro- air heat exchanger 13-1 of branch releases heat and melts frost layer, then passes through check valve 8 and hand stop valve 5, into double
Carried out into deflector 10 with the refrigeration working medium in addition having neither part nor lot in defrosting after confluence mixes, into remaining three heating branches after
It is continuous to complete heating condition cycle.Then successively to second and third, four branches carry out defrosting of moving in turn, defrosting process is same as above.
Under cooling in summer operating mode, cooling electronic expansion valve 7 is opened, the defrosting solenoid valve 4 of defrosting loop feature and each
The heating electric expansion valve and defrosting solenoid valve in circuit are closed, such as：First shunting system thermoelectron expansion valve 11-1 and first point
Road defrosting solenoid valve 12-1, the second shunting system thermoelectron expansion valve 11-2 and the second branch defrosting solenoid valve 12-2, third branch
Heat electric expansion valve 11-3 and third branch defrosting solenoid valve 12-3, the 4th shunting system thermoelectron expansion valve 11-4 and the 4th point
Road defrosting solenoid valve 12-4 is closed；Quasi- two-stage compression electric expansion valve 18 and quasi- two-stage compression solenoid valve 19 are closed.From compressor 1
Refrigeration working medium out respectively enters four Zu Fu- air heat-exchanges mechanisms via oil eliminator 2 and four-way reversing valve 3.At first point
Lu Zhong flows through the check valve 8 in bypass after carrying out heat release into fluoro- air heat exchanger 13-1；At second and third, in four branches
The heat transfer process of fluoro- air heat-exchange mechanism is similarly.The refrigeration working medium of four Zu Fu- air heat-exchanges mechanisms converges, through freezing on access
Check valve 8 and cooling electronic expansion valve 7, only enter fluorine phase transformation-water- to-water heat exchanger 6-1 in absorb heat, through 3 He of four-way reversing valve
Gas-liquid separator 9 is sucked by compressor 1 and completes refrigeration cycle.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
It can modify to the specific implementation mode of the present invention or equivalent replacement is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (11)
1. a kind of net for air-source heat pump units of continuous heat supply, it is characterised in that：Including compressor unit, indoor water heat exchange unit,
Quasi- two-stage compression unit, outdoor air heat exchange unit and defrosting branching unit；
The compressor unit includes sequentially connected gas-liquid separator (9), compressor (1), oil eliminator (2), bindiny mechanism
(3)；
The indoor water heat exchange unit includes and the bindiny mechanism (3) sequentially connected fluorine gas-water- to-water heat exchanger (6-2), fluorine phase
Change-water- to-water heat exchanger (6-1), heat transferring medium pass through water inlet (16), fluorine phase transformation-water- to-water heat exchanger (6-1), the heat exchange of fluorine air-water successively
Device (6-2), water out (15)；
The quasi- two-stage compression unit includes the plate heat exchanger (17) being connected with the fluorine phase transformation-water- to-water heat exchanger (6-1), described
The quasi- two-stage compression circuit that branch is equipped with heating circuit and is connected to the compressor (1) on plate heat exchanger (17)；
The outdoor air heat exchange unit includes the fluoro- air heat-exchange mechanism that at least two groups are arranged in parallel, the fluoro- air heat-exchange
The heating branch and defrosting branch and set that mechanism includes fluoro- air heat exchanger, is arranged in parallel on the fluoro- air heat exchanger
The wind turbine on the fluoro- air heat exchanger is set, the heating branch is equipped with shunting system thermoelectron expansion valve and check valve
(8), the defrosting branch is equipped with branch defrosting solenoid valve；
The defrosting branching unit includes the defrosting access being arranged between the oil eliminator (2) and bindiny mechanism (3), described
Defrosting solenoid valve (4), bidirectional guide mechanism (10), the defrosting solenoid valve (4) and bidirectional guide are equipped on defrosting access successively
Mechanism (10) return liquid side between branch be connected respectively with the defrosting branch, the tapping side of the bidirectional guide mechanism (10) and
Branch is connected with the heating branch respectively between bindiny mechanism (3)；
The net for air-source heat pump units only carries out defrosting to the fluoro- air heat-exchange mechanism of one of which every time, flows successively in defrosting
Through in defrosting access, wherein at least one defrosting branch refrigeration working medium with successively through fluorine gas-water- to-water heat exchanger (6-2), fluorine phase transformation-
Water- to-water heat exchanger (6-1), plate heat exchanger (17) heat exchange after refrigeration working medium bidirectional guide mechanism (10) return liquid side mixed flow, and
Tapping side branch through bidirectional guide mechanism (10) flows to the heating branch in remaining fluoro- air heat-exchange mechanism respectively.
2. net for air-source heat pump units according to claim 1, it is characterised in that：The bindiny mechanism (3) is commutated for four-way
Valve.
3. net for air-source heat pump units according to claim 2, it is characterised in that：The indoor water heat exchange unit further includes setting
Set the refrigeration access between water- to-water heat exchanger (6-1) and bidirectional guide mechanism (10), the refrigeration access and institute in the fluorine phase transformation-
It states heating circuit to be arranged in parallel, the refrigeration access is unidirectional on circuit equipped with cooling electronic expansion valve (7) and with heating
The oppositely arranged check valve (8) of valve (8).
4. net for air-source heat pump units according to claim 3, it is characterised in that：Shunting system thermoelectron in each heating branch
The both sides of expansion valve and check valve (8) have been arranged in parallel refrigeration branch, and the refrigeration branch is equipped with to be heated with the branch
The oppositely arranged check valve (8) of the connected check valve (8) of electric expansion valve.
5. net for air-source heat pump units according to claim 1, it is characterised in that：The branch defrosting solenoid valve is arranged in institute
State the refrigeration working medium entrance side of the fluoro- air heat exchanger in defrosting branch, the system of the fluoro- air heat exchanger in the defrosting branch
Cold sender property outlet side is equipped with check valve (8).
6. net for air-source heat pump units according to claim 1, it is characterised in that：What is be connected with the defrosting branch two-way leads
The liquid back pipe road for flowing mechanism (10) is equipped with check valve (8) and hand stop valve (5).
7. net for air-source heat pump units according to claim 4, it is characterised in that：The bidirectional guide mechanism (10) goes out liquid
Side be equipped with check valve (8), and the tapping side of the bidirectional guide mechanism (10) and return liquid side between it is in parallel be equipped with freeze access,
The refrigeration access is equipped with check valve (8).
8. net for air-source heat pump units according to claim 1, it is characterised in that：In the fluoro- air heat exchanger, air
Under the driving of wind turbine, heating branch, defrosting branch are passed sequentially through.
9. net for air-source heat pump units according to claim 1, it is characterised in that：The net for air-source heat pump units is in defrosting
When, every time to the fluoro- air heat-exchange mechanism of one of which carry out defrosting, move in turn one by one to each Zu Fu- air heat-exchanges mechanism into
Row defrosting operates.
10. net for air-source heat pump units according to claim 1, it is characterised in that：The outdoor air heat exchange unit includes 4
~12 groups of fluoro- air heat-exchange mechanisms being arranged in parallel.
11. net for air-source heat pump units according to claim 1, it is characterised in that：The heating circuit directly with the plate
Formula heat exchanger (17) is connected and is equipped with check valve (8) in back segment, and the quasi- two-stage compression circuit includes being successively set on pipeline
Quasi- two-stage compression solenoid valve (19), quasi- two-stage compression electric expansion valve (18), plate heat exchanger (17), check valve (8) and most
It is whole to be connected with the stage compressor (1)；
In heating, refrigeration working medium and the refrigeration working medium in quasi- two-stage compression circuit in the heating circuit board-like are changed described
Heat exchange is carried out in hot device (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298951.XA CN108362040A (en) | 2018-04-04 | 2018-04-04 | A kind of net for air-source heat pump units of continuous heat supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298951.XA CN108362040A (en) | 2018-04-04 | 2018-04-04 | A kind of net for air-source heat pump units of continuous heat supply |
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| Publication Number | Publication Date |
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| CN108362040A true CN108362040A (en) | 2018-08-03 |
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ID=63001699
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810298951.XA Pending CN108362040A (en) | 2018-04-04 | 2018-04-04 | A kind of net for air-source heat pump units of continuous heat supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109028255A (en) * | 2018-09-14 | 2018-12-18 | 北京卡林新能源技术有限公司 | A kind of family comprehensive tune energy net for air-source heat pump units of integrated |
| CN109631129A (en) * | 2018-11-30 | 2019-04-16 | 连红军 | A kind of industry air draft step takes the heat pump system of hot type continuous heat supply |
| CN114484586A (en) * | 2022-01-21 | 2022-05-13 | 珠海格力电器股份有限公司 | Modularized multi-connected unit and control method thereof |
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| CN208075375U (en) * | 2018-04-04 | 2018-11-09 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
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| CN109028255A (en) * | 2018-09-14 | 2018-12-18 | 北京卡林新能源技术有限公司 | A kind of family comprehensive tune energy net for air-source heat pump units of integrated |
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| CN114484586A (en) * | 2022-01-21 | 2022-05-13 | 珠海格力电器股份有限公司 | Modularized multi-connected unit and control method thereof |
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Effective date of registration: 20200506 Address after: 061758 floor 3-4, No.8 Xinghe Road, Cangzhou Economic Development Zone, Cangzhou City, Hebei Province Applicant after: Carlin Heat Pump Technology Co., Ltd Address before: 100082, 5 floor 11, 1 Street, ten Street, Haidian District, Beijing. Applicant before: BEIJING KCALIN NEW ENERGY TECHNOLOGY Co.,Ltd. |
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