CN108362041A - 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
- Publication number
- CN108362041A CN108362041A CN201810300709.1A CN201810300709A CN108362041A CN 108362041 A CN108362041 A CN 108362041A CN 201810300709 A CN201810300709 A CN 201810300709A CN 108362041 A CN108362041 A CN 108362041A
- Authority
- CN
- China
- Prior art keywords
- air
- fluoro
- defrosting
- water
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010257 thawing Methods 0.000 claims abstract description 169
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 230000007246 mechanism Effects 0.000 claims abstract description 113
- 230000006835 compression Effects 0.000 claims abstract description 94
- 238000007906 compression Methods 0.000 claims abstract description 94
- 238000005057 refrigeration Methods 0.000 claims description 94
- 238000010438 heat treatment Methods 0.000 claims description 82
- 230000002457 bidirectional effect Effects 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 36
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010079 rubber tapping Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000005482 strain hardening Methods 0.000 claims 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000003303 reheating Methods 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
- 238000013461 design Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012546 transfer Methods 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
- 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
- 238000012423 maintenance Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by 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
- 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
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
-
- 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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Abstract
The present invention relates to a kind of net for air-source heat pump units of continuous heat supply, including one stage of compression unit, indoor water side second-compressed hot cell, quasi- two-stage compression unit, outdoor air heat exchange unit and defrosting branching unit again.The Gas-supplying enthalpy-increasing technology that the net for air-source heat pump units of the continuous heat supply of the present invention passes through quasi- two-stage compression, the combination of superposition type second-compressed recycles and branch moves in turn defrosting and continuous heat supply scheme, its level-one compressibility uses Gas-supplying enthalpy-increasing technology, the heat in air can be extracted to greatest extent, and leaving water temperature can be promoted using superposition type second-compressed circulating technology to greatest extent, high-temperature water can also be made under ultralow-temperature operation conditions, and defrosting branch carries out defrosting operation with moving in turn one by one to the fluorine air heat-exchange mechanism of each branch, 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..
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
It the problem of continuous heat supply of existing defrosting operating mode, proposes a kind of net for air-source heat pump units of continuous heat supply, can carry to greatest extent
The heat in air is taken, leaving water temperature is promoted to greatest extent, i.e., makes high-temperature water under ultralow-temperature operation conditions.
To achieve the above object, the present invention provides a kind of net for air-source heat pump units of continuous heat supply, including one stage of compression
Unit, indoor water side second-compressed hot cell, quasi- two-stage compression unit, outdoor air heat exchange unit and defrosting branch list again
Member；
The one stage of compression unit includes sequentially connected gas-liquid separator, stage compressor, oil eliminator, connection machine
Structure；
Indoor water side second-compressed again hot cell include the fluoro- cold-water heat exchanger of low-temperature zone being connected with bindiny mechanism,
The fluoro- water- to-water heat exchanger of high temperature section that is connected with the fluoro- cold-water heat exchanger of the low-temperature zone, setting are changed in the fluoro- cold water of low-temperature zone of stating
Two level single stage compress mechanism between hot device and the fluoro- water- to-water heat exchanger of high temperature section, indoor water side second-compressed is again on hot cell
Equipped with water out and water inlet；
The quasi- two-stage compression unit includes the plate heat exchanger being connected with two level single stage compress mechanism, described board-like
The quasi- two-stage compression circuit that branch is equipped with heating circuit and is connected to the stage 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 two level single stage compress mechanism, board-like
Refrigeration working medium after heat exchanger heat exchange returns liquid side mixed flow, and the tapping side branch through bidirectional guide mechanism in bidirectional guide mechanism
Heating branch in the remaining fluoro- air heat-exchange mechanism of flow direction respectively.
Preferably, the bindiny mechanism is four-way reversing valve.
Preferably, the indoor water heat exchange unit further includes that setting is led in the fluoro- cold-water heat exchanger of the low-temperature zone with two-way
The refrigeration access between mechanism is flowed, the refrigeration access is arranged in parallel with the heating circuit, is set successively on the refrigeration access
There are cooling electronic expansion valve, check valve；
In refrigeration, refrigeration working medium in the bidirectional guide mechanism successively by refrigeration solenoid valve, check valve with it is described
The access that freezes is connected.
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.
Preferably, two level single stage compress mechanism includes the two level being connected by circulation successively with the fluoro- water- to-water heat exchanger of high temperature section
Compression of electronic expansion valve, fluoro- fluorine heat exchanger, split-compressor；
Refrigeration working medium in two level single stage compress mechanism in the fluoro- fluorine heat exchanger with the refrigeration in one stage of compression unit
After working medium is exchanged heat, into split-compressor, after compressed action, exchange heat into the fluoro- water- to-water heat exchanger of high temperature section, by two
After grade compression of electronic expansion valve reducing pressure by regulating flow, it is again introduced into fluoro- fluorine heat exchanger and forms two-stage compression cycle.
Preferably, in indoor water side second-compressed again hot cell, heat circuit in refrigeration working medium followed by
The fluoro- cold-water heat exchanger of low-temperature zone, check valve, high temperature heating solenoid valve, fluoro- fluorine heat exchanger, and finally with the plate heat exchanger
It is connected.
Preferably, in indoor water side second-compressed again hot cell, the water inlet exchanges heat with the fluoro- cold water of low-temperature zone
Between the water inlet of device be equipped with the first motor-driven valve of low-temperature zone water route, the water outlet of the fluoro- cold-water heat exchanger of low-temperature zone with it is described
The first motor-driven valve of high temperature section water route, the fluoro- cold-water heat exchanger of low-temperature zone are equipped between the water inlet of the fluoro- water- to-water heat exchanger of high temperature section
In parallel on the first motor-driven valve of low-temperature zone water route to be equipped with the second motor-driven valve of low-temperature zone water route, the high temperature section water route first is electronic
Valve, it is in parallel on the fluoro- water- to-water heat exchanger of high temperature section be equipped with the second motor-driven valve of high temperature section water route.
Based on the above-mentioned technical proposal, it is an advantage of the invention that：
Gas-supplying enthalpy-increasing technology of the net for air-source heat pump units by quasi- two-stage compression of the continuous heat supply of the present invention, superposition type two
The combination of second compression recycles and branch moves in turn defrosting and continuous heat supply technology, level-one compressibility use Gas-supplying enthalpy-increasing technology,
The heat in air can be extracted to greatest extent, and can be promoted to greatest extent using superposition type second-compressed circulating technology
Leaving water temperature can also make high-temperature water, have at least the following advantages under ultralow-temperature operation conditions：
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, two-stage compression reheating unit in indoor water side uses superposition type second-compressed cycle heat exchange technology, by adding two level
Single stage compress mechanism can improve the temperature and supply backwater temperature difference of recirculated water to greatest extent, to promote the conveying of recirculated water
Efficiency；By the opening and closing of pipeline motor-driven valve, the combination of compressibility can be switched to meet different working condition requirements.In winter low temperature
Under operating mode, superposition type second-compressed cycle heat exchange technology and branch the defrosting technology that moves in turn are combined, and can not only be substituted in urban district
Boiler room meets using radiator as the requirement of the thermic load of the user of end, may also reach up non-pollutant discharge；
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 continuous heat supply of the present invention, including one stage of compression unit, indoor water side two
Second compression hot cell, quasi- two-stage compression unit, outdoor air heat exchange unit and defrosting branching unit again；
The one stage of compression unit includes sequentially connected gas-liquid separator 9, stage compressor 1, oil eliminator 2, connection
Mechanism 3；
Indoor water side second-compressed again hot cell include the fluoro- cold-water heat exchanger 6-3 of low-temperature zone being connected with bindiny mechanism 3,
To state low-temperature zone fluoro- described for the fluoro- water- to-water heat exchanger 6-1 of high temperature section that is connected with the fluoro- cold-water heat exchanger 6-3 of the low-temperature zone, setting
Two level single stage compress mechanism between cold-water heat exchanger 6-3 and the fluoro- water- to-water heat exchanger 6-1 of high temperature section, the secondary pressure in indoor water side
Hot cell is equipped with water out 15 and water inlet 16 again for contracting；
The quasi- two-stage compression unit includes the plate heat exchanger 17 being connected with two level single stage compress mechanism, the plate
The quasi- two-stage compression circuit that branch is equipped with heating circuit and is connected to the stage compressor 1 on formula 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 two level single stage compress mechanism, board-like
Refrigeration working medium after heat exchanger 17 exchanges heat returns liquid side mixed flow in bidirectional guide mechanism 10, and goes out liquid through bidirectional guide mechanism 10
Side branch 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, superposition type two-stage compression with principle of time-space
Integrated technology route, propose the completely new quasi- two-stage compression of air source heat pump under ultralow ambient temperature conditions, superposition type two level
Compression cycle and more by-passing types take heat and wheel dynamic formula defrosting technical solution.Gas supplementing opening is added to stage compressor first, in system
In add intermediate plate heat exchanger, recycled with constituting quasi- secondary compression heat pump；Secondly, indoor water side two-stage compression reheat section is adopted
With cascade cycle technology, second single stage compress system of setting is coupled two compressibilities by fluoro- fluorine heat exchanger
Come, forms the working cycles of overlapping；Finally, air source heat pump outdoor air heat exchanger is set as at least two can independent operating
Branch take heat and defrosting system.To a heating branch is individually respectively set per outdoor air heat-exchange system independent all the way
With defrosting branch, defrosting operating mode and heating are realized by the pipelines such as the opening and closing of solenoid valve and electric expansion valve, check valve and pipe fitting
The switching of operating mode.Wherein fluoro- air heat-exchange mechanism carries out not influencing the fluoro- air heat-exchange mechanism of other branches while defrosting all the way
The operation of branch heating condition carries out defrosting operation with moving in turn one by one, to realize to the fluoro- air heat-exchange mechanism of each branch
Move in turn accurate defrosting and continuous heat supply.
Gas-supplying enthalpy-increasing technology of the net for air-source heat pump units by quasi- two-stage compression of the continuous heat supply of the present invention, superposition type two
The combination of second compression recycles and branch moves in turn defrosting and continuous heat supply technology, level-one compressibility use Gas-supplying enthalpy-increasing technology,
The heat in air can be extracted to greatest extent, and can be promoted to greatest extent using superposition type second-compressed circulating technology
Leaving water temperature can also make high-temperature water under ultralow-temperature operation conditions
Present system is divided into five parts, respectively one stage of compression unit, indoor water side second-compressed hot cell, standard again
Two-stage compression unit, outdoor air heat exchange unit and defrosting branching unit.
Specifically, the one stage of compression unit includes sequentially connected gas-liquid separator 9, stage compressor 1, oil eliminator
2, bindiny mechanism 3.Preferably, the stage compressor 1 is frequency-changeable compressor, to obtain better energy-saving effect.To make level-one
Compressor 1 completes quasi- two-stage compression, and the stage compressor 1 is equipped with auxilairy air intake, for sucking quasi- two-stage compression circuit
In refrigeration working medium.When the net for air-source heat pump units of the present invention is only used for heating, it is direct that pipeline can be used in the bindiny mechanism 3
It connects, without configuring valve on pipeline, the oil eliminator 2 is connected to the fluoro- direct copper pipes of cold-water heat exchanger 6-3 of low-temperature zone, institute
It states gas-liquid separator 9 to be connected to the fluoro- direct copper pipe of air heat-exchange mechanism, net for air-source heat pump units is simply possible to use in heating, nothing at this time
Four-way valve need to be set.
Hot cell includes the fluoro- cold-water heat exchanger of low-temperature zone being connected with bindiny mechanism 3 to indoor water side second-compressed again
6-3, the fluoro- water- to-water heat exchanger 6-1 of high temperature section being connected with the fluoro- cold-water heat exchanger 6-3 of the low-temperature zone, it is arranged and states low-temperature zone described
Two level single stage compress mechanism between fluoro- cold-water heat exchanger 6-3 and the fluoro- water- to-water heat exchanger 6-1 of high temperature section, the indoor water side are secondary
Hot cell is equipped with water out 15 and water inlet 16 again for compression.The fluoro- water- to-water heat exchanger 6-1 of high temperature section in heating as condensation side,
The fluoro- cold-water heat exchanger 6-3 of low-temperature zone can be used as evaporation side in refrigeration, pass through the indoor water side second-compressed reheating
The water out 15 and water inlet 16 being arranged on unit, can be directly connected to user side, to provide to the user high-temperature-hot-water or
Cold water.
Preferably, two level single stage compress mechanism includes two be connected by circulation successively with the fluoro- water- to-water heat exchanger 6-1 of high temperature section
Grade compression of electronic expansion valve 6-6, fluoro- fluorine heat exchanger 6-2, split-compressor 6-7.Preferably, the split-compressor 6-7 is to become
Frequency compressor, to obtain better energy-saving effect.Refrigeration working medium in two level single stage compress mechanism is in the fluoro- fluorine heat exchanger 6-
After being exchanged heat with the refrigeration working medium in one stage of compression unit in 2, into split-compressor 6-7, after compressed action, into high temperature
The fluoro- water- to-water heat exchanger 6-1 of section exchanges heat, and after two-stage compression electric expansion valve 6-6 reducing pressure by regulating flow, is again introduced into fluoro- fluorine and changes
Hot device 6-2 forms two-stage compression cycle.
Preferably, in indoor water side second-compressed again hot cell, heat circuit in refrigeration working medium followed by
The fluoro- cold-water heat exchanger 6-3 of low-temperature zone, check valve 8, high temperature heating solenoid valve 6-9, fluoro- fluorine heat exchanger 6-2, and finally with it is described
Plate heat exchanger 17 is connected, and above-mentioned all parts constitute the part in heating circuit.
Preferably, the heating circuit is directly connected with the plate heat exchanger 17 and is equipped with check valve 8 in back segment.It is making
When hot, the refrigeration working medium in the heating circuit is with the refrigeration working medium in quasi- two-stage compression circuit in the plate heat exchanger 17
Carry out heat exchange.The heating circuit is directly connected with the plate heat exchanger 17 and is equipped with check valve 8, refrigeration working medium in back segment
Liquid is directly entered plate heat exchanger 17.The quasi- two-stage compression circuit includes the quasi- two-stage compression electricity being successively set on pipeline
Magnet valve 19, quasi- two-stage compression electric expansion valve 18, plate heat exchanger 17, check valve 8 and finally with 1 phase of the stage compressor
Even, refrigeration working medium liquid also enters plate after quasi- two-stage compression solenoid valve 19 and quasi- 18 reducing pressure by regulating flow of two-stage compression electric expansion valve
Formula heat exchanger 17, after this two parts refrigeration working medium generates heat exchange in the plate heat exchanger 17, the quasi- two-stage compression returns
The refrigeration working medium on road is sucked after becoming gas by the auxilairy air intake of compressor 1.
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 fluoro- water- to-water heat exchanger 6, plate heat exchanger 17
Refrigeration working medium after heat returns liquid side mixed flow in bidirectional guide mechanism 10.The bidirectional guide mechanism 10 is former using high speed water conservancy diversion
Reason, such as the mode of jet stream, mixing confluence is carried out by the refrigeration working medium of two kinds of different pressures states.
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 carry out defrosting, followed by defrosting access, wherein at least one defrosting branch refrigeration working medium with through fluoro-
Refrigeration working medium after water- to-water heat exchanger 6 exchanges heat goes back to liquid side mixed flow, and going out through bidirectional guide mechanism 10 in bidirectional guide mechanism 10
Liquid side branch 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 between the fluoro- cold-water heat exchanger 6-3 of the low-temperature zone and bidirectional guide mechanism 10, the refrigeration access and the system
Hot loop is arranged in parallel, and is equipped with cooling electronic expansion valve 7, check valve 8 on the refrigeration access successively.It is described double in refrigeration
Refrigeration working medium into deflector 10 is connected by refrigeration solenoid valve 6-8, check valve 8 with the refrigeration access successively.
As shown in Figure 1, in indoor water side second-compressed again hot cell, the water inlet 16 is fluoro- cold with low-temperature zone
Low-temperature zone water route the first motor-driven valve 6-5, the fluoro- cold-water heat exchanger 6-3 of low-temperature zone are equipped between the water inlet of water- to-water heat exchanger 6-3
Water outlet and the water inlet of the fluoro- water- to-water heat exchanger 6-1 of the high temperature section between be equipped with high temperature section water route the first motor-driven valve 6-4, institute
It is in parallel on the first motor-driven valve 6-5 of low-temperature zone water route electronic equipped with low-temperature zone water route second to state the fluoro- cold-water heat exchanger 6-3 of low-temperature zone
Valve 6-10, the first motor-driven valve of high temperature section water route 6-4, it is in parallel on the fluoro- water- to-water heat exchanger 6-1 of high temperature section be equipped with high temperature section water route
Second motor-driven valve 6-11.
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.
Gas-supplying enthalpy-increasing technology of the net for air-source heat pump units by quasi- two-stage compression of the continuous heat supply of the present invention, superposition type two
The combination of second compression recycles and branch moves in turn defrosting and continuous heat supply technology, level-one compressibility use Gas-supplying enthalpy-increasing technology,
The heat in air can be extracted to greatest extent, and can be promoted to greatest extent using superposition type second-compressed circulating technology
Leaving water temperature can also make high-temperature water, have at least the following advantages under ultralow-temperature operation conditions：
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, two-stage compression reheating unit in indoor water side uses superposition type second-compressed cycle heat exchange technology, by adding two level
Single stage compress mechanism can improve the temperature and supply backwater temperature difference of recirculated water to greatest extent, to promote the conveying of recirculated water
Efficiency；By the opening and closing of pipeline motor-driven valve, the combination of compressibility can be switched to meet different working condition requirements.In winter low temperature
Under operating mode, superposition type second-compressed cycle heat exchange technology and branch the defrosting technology that moves in turn are combined, and can not only be substituted in urban district
Boiler room meets using radiator as the requirement of the thermic load of the user of end, may also reach up non-pollutant discharge；
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：
Under winter heating's operating mode of severe cold area, two single stage compress are coupled together by fluoro- fluorine heat exchanger 6-2,
Form superposition type two-stage compression system, indoor water side two-stage compression high temperature section water route the first motor-driven valve 6-4 in hot cell, low again
Temperature section water route the second motor-driven valve 6-10, high temperature heating solenoid valve 6-9 and two-stage compression electric expansion valve 6-6 are opened, two-stage compression
Machine 6-7 is opened；The heating electric expansion valve and wind turbine of each fluoro- air heat-exchange mechanism branch of outdoor air heat exchange unit are beaten
It opens.Such as：First shunting system thermoelectron 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 branch
It heats electric 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 electricity
Magnet valve 19 is opened；The defrosting solenoid valve 4 of defrosting passed part and the defrosting solenoid valve of each branch are closed, 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 electromagnetism
Valve 12-4 is closed；Cooling electronic expansion valve 7, high temperature section water route the second motor-driven valve 6-11, low-temperature zone water route the first motor-driven valve 6-5 are closed
It closes.
At this point, the high temperature and pressure refrigeration working medium gas come out from stage compressor 1 is via oil eliminator 2 and four-way reversing valve
3, it sequentially enters in the fluoro- cold-water heat exchanger 6-3 of low-temperature zone and fluoro- fluorine heat exchanger 6-2, and only put in fluoro- fluorine heat exchanger 6-2
Heat, is condensed into liquid, is divided into 2 tunnels later：Main road is to heat circuit, two-stage compression circuit subject to bypass.The refrigeration working medium of main road
Liquid is directly entered plate heat exchanger 17；The refrigeration working medium liquid of bypass is through quasi- two-stage compression solenoid valve 19 and quasi- two-stage compression electricity
Also enter plate heat exchanger 17 after 18 reducing pressure by regulating flow of sub- expansion valve.This two parts refrigeration working medium generates heat in plate heat exchanger 17
After exchange, the refrigeration working medium of bypass is sucked after becoming gas by the auxilairy air intake of stage compressor 1, and the refrigeration working medium of main road becomes
Pass through check valve 8 and bidirectional guide mechanism 10 for subcooled liquid, respectively enters four heating branches.In the first branch, pass through
Check valve 8 and the first circuit heat electric expansion valve 11-1 reducing pressure by regulating flow, absorb heat into fluoro- air heat exchanger 13-1；The
Two, the heating condition process of three, four heating branches.After the refrigeration working medium vaporization heat absorption of four heating branches, converge
It through four-way reversing valve 3 and gas-liquid separator 9, is sucked by stage compressor 1, the refrigeration working medium of main road and bypass is in stage compressor
Mixing in 1 working chamber after further compressing outside discharge compressor 1, completes heating cycle.
Indoor water side two-stage compression again hot cell two-stage compression cycle be an independent system, refrigerant working medium exists
After being exchanged heat with the refrigeration working medium of one stage of compression cycle in fluoro- fluorine heat exchanger 6-2, into split-compressor 6-7, compressed action
Afterwards, it exchanges heat into the fluoro- water- to-water heat exchanger 6-1 of high temperature section, after two-stage compression electric expansion valve 6-6 reducing pressure by regulating flow, again
Into fluoro- fluorine heat exchanger 6-2, two-stage compression cycle is formed.
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, indoor water side two-stage compression again hot cell cooling electronic expansion valve 7 open, high temperature section
Water route the second motor-driven valve 6-11, low-temperature zone water route the first motor-driven valve 6-5 are opened, split-compressor 6-7, two-stage compression electronic expansion
Valve 6-6, refrigeration branch second solenoid valve 6-9, low-temperature zone water route the second motor-driven valve 6-10, high temperature section water route the first motor-driven valve 6-4
It closes；The defrosting solenoid valve 4 of defrosting loop feature and the heating electric expansion valve in each circuit and defrosting solenoid valve are closed, example
Such as：First shunting system thermoelectron expansion valve 11-1 and the first branch defrosting solenoid valve 12-1, the second shunting system thermoelectron expansion valve
11-2 and the second branch defrosting solenoid valve 12-2, third shunting system thermoelectron expansion valve 11-3 and third branch defrosting solenoid valve
12-3, the 4th shunting system thermoelectron expansion valve 11-4 and the 4th branch defrosting solenoid valve 12-4 are closed；Quasi- two-stage compression electronics is swollen
Swollen valve 18 and quasi- two-stage compression solenoid valve 19 are closed.The refrigeration working medium come out from the first compressor 1 is via oil eliminator 2 and four-way
Reversal valve 3 respectively enters four Zu Fu- air heat-exchanges mechanisms.In the first branch, put into fluoro- air heat exchanger 13-1
The check valve 8 in bypass is flowed through after heat；Second and third, the heat transfer process of fluoro- air heat-exchange mechanism in four branches similarly.Four
The refrigeration working medium of Zu Fu- air heat-exchanges mechanism converges, through the check valve 8 and cooling electronic expansion valve 7, Jin Jin on access of freezing
It absorbs heat in the fluoro- cold-water heat exchanger 6-3 of low-temperature zone, through four-way reversing valve 3 and gas-liquid separator 9, is sucked and complete by compressor 1
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 (14)
1. a kind of net for air-source heat pump units of continuous heat supply, it is characterised in that：Including one stage of compression unit, the secondary pressure in indoor water side
Contract hot cell, quasi- two-stage compression unit, outdoor air heat exchange unit and defrosting branching unit again；
The one stage of compression unit includes sequentially connected gas-liquid separator (9), stage compressor (1), oil eliminator (2), connects
Connection mechanism (3)；
Indoor water side second-compressed again hot cell include the fluoro- cold-water heat exchanger of low-temperature zone (6-3) being connected with bindiny mechanism (3),
The fluoro- water- to-water heat exchanger of high temperature section (6-1) that is connected with the fluoro- cold-water heat exchanger of the low-temperature zone (6-3) is arranged and states low-temperature zone described
Two level single stage compress mechanism between fluoro- cold-water heat exchanger (6-3) and the fluoro- water- to-water heat exchanger of high temperature section (6-1), the indoor water side
Hot cell is equipped with water out (15) and water inlet (16) to second-compressed again；
The quasi- two-stage compression unit includes the plate heat exchanger (17) being connected with two level single stage compress mechanism, described board-like
The quasi- two-stage compression circuit that branch is equipped with heating circuit and is connected to the stage compressor (1) on 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 two level single stage compress mechanism, plate-type heat-exchange
Refrigeration working medium after device (17) heat exchange goes back to liquid side mixed flow, and going out through bidirectional guide mechanism (10) in bidirectional guide mechanism (10)
Liquid side branch 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 the fluoro- cold-water heat exchanger of the low-temperature zone (6-3) and bidirectional guide mechanism (10), the refrigeration access
It is arranged in parallel with the heating circuit, is equipped with cooling electronic expansion valve (7), check valve (8) on the refrigeration access successively；
In refrigeration, the refrigeration working medium in the bidirectional guide mechanism (10) is successively by refrigeration solenoid valve (6-8), check valve
(8) it is connected with the refrigeration access.
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).
12. net for air-source heat pump units according to claim 1, it is characterised in that：Two level single stage compress mechanism includes
Two-stage compression electric expansion valve (6-6), the fluoro- fluorine heat exchanger (6- being connected by circulation successively with the fluoro- water- to-water heat exchanger of high temperature section (6-1)
2), split-compressor (6-7)；
Refrigeration working medium in two level single stage compress mechanism in the fluoro- fluorine heat exchanger (6-2) with the system in one stage of compression unit
After cold working medium is exchanged heat, into split-compressor (6-7), after compressed action, into the fluoro- water- to-water heat exchanger of high temperature section (6-1) into
Row heat exchange is again introduced into fluoro- fluorine heat exchanger (6-2) and forms two level after two-stage compression electric expansion valve (6-6) reducing pressure by regulating flow
Compression cycle.
13. net for air-source heat pump units according to claim 12, it is characterised in that：In the indoor water side, second-compressed is again
In hot cell, the refrigeration working medium in circuit is heated followed by the fluoro- cold-water heat exchanger of low-temperature zone (6-3), check valve (8), high temperature
Heating solenoid valve (6-9), fluoro- fluorine heat exchanger (6-2), and be finally connected with the plate heat exchanger (17).
14. net for air-source heat pump units according to claim 2, it is characterised in that：In the indoor water side, second-compressed is again
In hot cell, low-temperature zone water route the is equipped between the water inlet (16) and the water inlet of the fluoro- cold-water heat exchanger of low-temperature zone (6-3)
One motor-driven valve (6-5), water outlet and the fluoro- water- to-water heat exchanger (6- of the high temperature section of the fluoro- cold-water heat exchanger of low-temperature zone (6-3)
1) between water inlet be equipped with the first motor-driven valve of high temperature section water route (6-4), the fluoro- cold-water heat exchanger of low-temperature zone (6-3) with it is low
It is in parallel on the first motor-driven valve of temperature section water route (6-5) to be equipped with the second motor-driven valve of low-temperature zone water route (6-10), the high temperature section water route the
One motor-driven valve (6-4), it is in parallel on the fluoro- water- to-water heat exchanger of high temperature section (6-1) be equipped with the second motor-driven valve of high temperature section water route (6-11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810300709.1A CN108362041A (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 |
|---|---|---|---|
| CN201810300709.1A CN108362041A (en) | 2018-04-04 | 2018-04-04 | A kind of net for air-source heat pump units of continuous heat supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108362041A true CN108362041A (en) | 2018-08-03 |
Family
ID=63002174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810300709.1A Pending CN108362041A (en) | 2018-04-04 | 2018-04-04 | A kind of net for air-source heat pump units of continuous heat supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108362041A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210829A (en) * | 2018-10-10 | 2019-01-15 | 天津商业大学 | A kind of Multifunctional heat pump system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884061Y (en) * | 2005-12-23 | 2007-03-28 | 中国科学院理化技术研究所 | Warmmer air source heat-pump device of parallel compressor able to achieve tow-stage compression |
| CN107036349A (en) * | 2017-06-10 | 2017-08-11 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN207113323U (en) * | 2017-06-10 | 2018-03-16 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN208254005U (en) * | 2018-04-04 | 2018-12-18 | 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 |
-
2018
- 2018-04-04 CN CN201810300709.1A patent/CN108362041A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884061Y (en) * | 2005-12-23 | 2007-03-28 | 中国科学院理化技术研究所 | Warmmer air source heat-pump device of parallel compressor able to achieve tow-stage compression |
| CN107036349A (en) * | 2017-06-10 | 2017-08-11 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN207113323U (en) * | 2017-06-10 | 2018-03-16 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN208254005U (en) * | 2018-04-04 | 2018-12-18 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210829A (en) * | 2018-10-10 | 2019-01-15 | 天津商业大学 | A kind of Multifunctional heat pump system |
| CN109210829B (en) * | 2018-10-10 | 2024-02-20 | 天津商业大学 | Multifunctional heat pump system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101713599B (en) | Air-conditioning heat pump device | |
| CN101943471A (en) | Dual heat-source heat-pump hot water device with extremely simple refrigerating loop | |
| CN106016771A (en) | Solar air source heat pump triple co-generation system and control method thereof | |
| CN105318454A (en) | Air source multi-connected type air conditioning heat pump system and operation method thereof | |
| CN108362040A (en) | A kind of net for air-source heat pump units of continuous heat supply | |
| CN104676937B (en) | Low-temperature air source and ground source dual-source heat pump unit and control method thereof | |
| CN105276861A (en) | Compensation type double-source heat pump cold and hot air air-conditioner unit | |
| CN108088108A (en) | A kind of subway station direct-expansion type evaporative condenser heat pump air conditioning system and its method of work | |
| CN108387033A (en) | A kind of net for air-source heat pump units of continuous heat supply | |
| CN105258389A (en) | Compensation type dual-source heat pump cold and hot water unit | |
| CN208254005U (en) | A kind of net for air-source heat pump units of continuous heat supply | |
| CN205784048U (en) | Air conditioning system | |
| CN101033866A (en) | Heat pump combined with water heater system | |
| CN208075375U (en) | A kind of net for air-source heat pump units of continuous heat supply | |
| CN108362041A (en) | A kind of net for air-source heat pump units of continuous heat supply | |
| CN204593929U (en) | A kind of source, Cryogenic air seedbed double-source heat pump unit | |
| CN208254017U (en) | A kind of net for air-source heat pump units of continuous heat supply | |
| CN203572093U (en) | Hot water CCHP heat pump unit of air-source central air conditioner | |
| CN109631129A (en) | A kind of industry air draft step takes the heat pump system of hot type continuous heat supply | |
| CN208075370U (en) | A kind of net for air-source heat pump units of continuous heat supply | |
| CN110285467A (en) | A kind of indirect cooling phase-change accumulating type ice source heat pump system | |
| CN110160180A (en) | A kind of compound energy air-treatment unit | |
| CN113418312B (en) | Injection enthalpy-increasing evaporative cooling type air-cooled heat pump unit | |
| CN113446755B (en) | Double-source integrated air source heat pump unit with total heat recovery | |
| CN101799223B (en) | Entire-year three-use air source heat pump unit and method for operating same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200428 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. |