CN106225318A - Can total heat recovery air source heat pump system as low level heat energy with solar energy ground - Google Patents

Can total heat recovery air source heat pump system as low level heat energy with solar energy ground Download PDF

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Publication number
CN106225318A
CN106225318A CN201610587726.9A CN201610587726A CN106225318A CN 106225318 A CN106225318 A CN 106225318A CN 201610587726 A CN201610587726 A CN 201610587726A CN 106225318 A CN106225318 A CN 106225318A
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China
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heat
heat exchange
pipeline
low temperature
water tank
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CN201610587726.9A
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王勇
彭远玲
黎家荣
郑绍华
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Chongqing University
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Chongqing University
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Priority to CN201610587726.9A priority Critical patent/CN106225318A/en
Publication of CN106225318A publication Critical patent/CN106225318A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/02Heat pumps of the compression type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention discloses a kind of can total heat recovery air source heat pump system as low level heat energy with solar energy ground, including ground heat exchanger, solar thermal collector, low temperature water tank, vaporizer, condenser, heat recovery heat exchange device and compressor, in low temperature water tank, vaporizer and heat recovery heat exchange device, it is respectively equipped with heat exchange coil;Low temperature water tank heat exchange coil passes through pipeline ground connection buried tube heat exchanger;Low temperature water tank connects evaporator heat exchange coil pipe by pipeline;Vaporizer connects compressor and heat recovery heat exchange device successively by pipeline and takes back formation loop by choke valve and vaporizer;It is provided with air-cooled condenser between the pipeline being connected with compressor and the pipeline being connected with choke valve.Solar thermal collector two ends are connected on the pipeline that low temperature water tank heat exchange coil outlet is connected with ground heat exchanger water inlet by three-way valve respectively.The present invention solves net for air-source heat pump units winter low-energy-efficiency and frosting problem when cold district runs.

Description

Can total heat recovery air source heat pump system as low level heat energy with solar energy-ground
Technical field
The present invention relates to heat supply process improve, can the full heat as low level heat energy return with solar energy-ground particularly to a kind of Receive air source heat pump system, belong to technical field of heat exchange.
Background technology
At present, common indoor heating and refrigeration demand often use same set of system to carry out, and most typical are at present Common cold-hot integrated air conditioner, its structure is shown in Fig. 5.Under cooling in summer pattern, the liquid refrigerant in vaporizer 5 absorbs sky Undergo phase transition after gas heat, become the gaseous refrigerant of low-temp low-pressure, by becoming the liquid refrigeration of High Temperature High Pressure after compressor 9 Agent, carries out heat exchange by condenser 6 and air the most again, obtains the liquid refrigerant of temperature reduction and is flowed by choke valve 8 Returning vaporizer, circulation realizes refrigeration and so forth.Under winter heating mode, condenser and vaporizer role transforming, condenser Becoming vaporizer and absorb atmospheric heat, vaporizer becomes condenser to indoor releasing heat, thus realizes heating.I.e. heating mode Under, thermal source is air, and this employing air source heat pump heating mode comes with some shortcomings at cold district (such as north of China), this Being because these place outdoor temperatures in winter the lowest, vaporizer often occurs that absorbing atmospheric heat when unit frosting is existing As, in order to eliminate frosting, unit needs transformation working pattern, heating switch to refrigeration, makes vaporizer be returned to condenser shape State is with heat release, by heat release except the frost layer on unit.Refrigeration mean will heat in absorption chamber, thus by heating mode The heat of lower absorption outside discharge unit again, causes unit to heat COP (coefficient of performance) relatively low.
Summary of the invention
For deficiencies of the prior art, it is an object of the invention to proposition one with solar energy-ground can be The total heat recovery air source heat pump system of low level heat energy, native system, by changing existing heating mode, solves air source heat Pump assembly winter low-energy-efficiency and frosting problem when cold district runs.
The technical scheme is that and be achieved in that:
Can total heat recovery air source heat pump system as low level heat energy with solar energy-ground, it is characterised in that: include being embedded in ground Ground heat exchanger, low temperature water tank, vaporizer, condenser, heat recovery heat exchange device and the compressor of layer, ground heat exchanger buries Be located at stratum for soil heat exchange, in low temperature water tank, vaporizer and heat recovery heat exchange device, be respectively equipped with heat exchange coil;Low The water inlet of reservoir heat exchange coil and outlet are respectively by outlet and the water inlet of pipeline ground connection buried tube heat exchanger, to incite somebody to action The geothermal transfer that ground heat exchanger absorbs is to low temperature water tank;Connect between ground heat exchanger at low temperature water tank heat exchange coil Pipeline is provided with circulating pump;
The water inlet of low temperature water tank and outlet connect evaporator heat exchange coil pipe outlet and water inlet by pipeline respectively;Two even Adapter is respectively equipped with switch valve on road, and a pipeline is provided with circulating pump wherein;Two switch valves and evaporator heat exchange coil pipe it Between pipeline be provided with chilled water pipeline, chilled water pipeline, for connecing the Inlet and outlet water of user, chilled water pipeline also is provided with switch Valve;
The refrigerant outlet of vaporizer connects compressor and heat recovery heat exchange device import, heat recovery heat exchange device successively by pipeline Outlet connects the refrigerant inlet of choke valve and vaporizer successively by pipeline;Heat exchange coil two ends in heat recovery heat exchange device are divided Do not meet user, to send user back to after user is sent into the cool water heating in heat recovery heat exchange device heat exchange coil;
Between the pipeline that the pipeline being connected with compressor at heat recovery heat exchange device and heat recovery heat exchange device are connected with choke valve Being provided with air-cooled condenser, air-cooled condenser two ends are connected to by three-way valve I on the pipeline of correspondence respectively.
Also including solar thermal collector, the water inlet of solar thermal collector and outlet are respectively by three-way valve II, threeway Valve III is connected on the pipeline that low temperature water tank heat exchange coil outlet is connected with ground heat exchanger water inlet;In underground pipe heat exchange Pipeline between device outlet and low temperature water tank heat exchange coil water inlet is provided with three-way valve IV, goes out at low temperature water tank heat exchange coil Being additionally provided with three-way valve V with ground heat exchanger water inlet on the pipeline that the mouth of a river is connected, three-way valve V is than three-way valve II, three-way valve III more draws close ground heat exchanger, three-way valve IV and three-way valve V is remained and is directly connected to by pipeline between terminal.
Low temperature water tank heat exchange coil is vertically arranged and upper end is heat exchange coil outlet;Low temperature water tank outlet is arranged on low Reservoir top, low temperature water tank water inlet is arranged on bottom low temperature water tank;Water inlet and heat exchange coil it is positioned in low temperature water tank It is provided with horizontal baffle between lower end, with the water inlet reducing temperature relatively low, water the temperature inside the box is caused bigger fluctuation.
Described heat recovery heat exchange device is water-cooled condenser.
Compared with prior art, there is advantages that
The present invention take full advantage of with solar energy-ground can total heat recovery air source heat pump system as low level heat energy refrigeration+ Heat recovery mode, makes the water at low temperature in low temperature water tank whole for warm season dimension by a small amount of solar thermal collector and ground heat exchanger Holding in the state being not less than 10 DEG C, the net for air-source heat pump units of band recuperation of heat is by running refrigeration+heat recovery mode, it is achieved cold Area net for air-source heat pump units COP value Effec-tive Function between 4.6-6.2, well solves the net for air-source heat pump units winter Season is low-energy-efficiency and frosting problem when cold district runs.Meanwhile, changed by a small amount of plate solar heat collector and underground pipe The mode that hot device obtains water at low temperature is simple, and, relative to traditional plate solar thermal-arrest direct-furnish end or ground source heat Pump heating system cost is greatly reduced.
Accompanying drawing explanation
Fig. 1-present configuration schematic diagram.
Fig. 2-solar thermal collector of the present invention and ground heat exchanger associating heating mode schematic diagram.
Fig. 3-ground heat exchanger of the present invention independent heating mode schematic diagram.
Fig. 4-solar thermal collector of the present invention independent heating mode schematic diagram.
Fig. 5-refrigeration mode schematic diagram of the present invention (existing structure refrigeration mode is also so).
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, the present invention is so that solar energy-ground can (it is relatively low that low level heat energy refers to water temperature as low level heat energy Thermal source) total heat recovery air source heat pump system, including be embedded in the ground heat exchanger 2 on stratum, low temperature water tank 3, evaporation Device 5, condenser 6, heat recovery heat exchange device 7 and compressor 9, ground heat exchanger 2 is embedded in stratum for absorbing underground heat (ground Can), in low temperature water tank 3, vaporizer 5 and heat recovery heat exchange device 7, it is respectively equipped with heat exchange coil.Low temperature water tank heat exchange coil Water inlet and outlet are respectively by outlet and the water inlet of pipeline ground connection buried tube heat exchanger, to be absorbed by ground heat exchanger Geothermal transfer to low temperature water tank;Connect at low temperature water tank heat exchange coil and be provided with circulation on the pipeline between ground heat exchanger 2 Pump 4.The connection of low temperature water tank heat exchange coil and ground heat exchanger realizes first step heat exchange, for heating in low temperature water tank Water, makes the water temperature in low temperature water tank be not less than 10 DEG C.
The water inlet of low temperature water tank 3 and outlet connect evaporator heat exchange coil pipe outlet and water inlet by pipeline respectively; Connect two and be respectively equipped with switch valve 12 on pipeline, be again provided with circulating pump 4 on a pipeline wherein, at low temperature water tank The circulation of water is realized between 3 and vaporizer 5.Pipeline between two switch valves and evaporator heat exchange coil pipe is provided with chilled water pipe Road, chilled water pipeline, for connecing the Inlet and outlet water of user, chilled water pipeline also is provided with switch valve 12.Low temperature water tank 3 and vaporizer Heat exchange coil connects and realizes second step heat exchange, and the cold-producing medium in heating evaporation device, to utilize cold-producing medium to complete third time ( After once) heat exchange.
The refrigerant outlet of vaporizer connects compressor 9 and heat recovery heat exchange device 7 import successively by pipeline, and recuperation of heat is changed Thermal 7 is exported and is connect choke valve 8 and the refrigerant inlet of vaporizer 5 by pipeline successively;Heat exchange in heat recovery heat exchange device 7 Coil pipe two ends meet user respectively, to send user back to after user is sent into the cool water heating in heat recovery heat exchange device heat exchange coil. Vaporizer 5 and heat recovery heat exchange device 7 connection realize the 3rd step heat exchange, are used for providing the user with hot water.Heat recovery heat exchange device 7 For water-cooled condenser.
The pipeline being connected with compressor 9 at heat recovery heat exchange device 7 and heat recovery heat exchange device 7 are connected with choke valve 8 Being provided with air-cooled condenser 6 between pipeline, air-cooled condenser 6 two ends are connected to by three-way valve I 11-1 on the pipeline of correspondence respectively. Air-cooled condenser the most just uses, and now vaporizer 5, compressor 9, air-cooled condenser 6 and choke valve 8 collectively form Refrigeration system, is shown in Fig. 5.That group switch valve 12 that now the vaporizer left side is connected with low temperature water tank cuts out, that group of vertical direction Switch valve 12 is opened.
In order to make full use of solar energy, effectively to supplement geothermal heat source, the present invention the most also includes solar energy heating Device 1, the water inlet of solar thermal collector 1 and outlet are connected to low temperature by three-way valve II 11-2, three-way valve III 11-3 respectively On the pipeline that water tank 3 heat exchange coil outlet is connected with ground heat exchanger 2 water inlet;Ground heat exchanger 2 outlet with Pipeline between low temperature water tank 3 heat exchange coil water inlet is provided with three-way valve IV 11-4, at low temperature water tank 3 heat exchange coil outlet Being additionally provided with three-way valve V 11-5 on the pipeline being connected with ground heat exchanger 2 water inlet, three-way valve V 11-5 is than three-way valve II 11- 2, three-way valve III 11-3 more draws close ground heat exchanger 2, passes through between three-way valve IV 11-4 and three-way valve V 11-5 residue terminal Pipeline is directly connected to.In the case of solar charging can be used completely, the water outlet of solar thermal collector 1 enters underground pipe and carries out heat exchange, Enter back into low temperature water tank 3 and carry out heat exchange, eventually pass back to solar thermal collector (the cold district soil moisture at about 15 DEG C, with this Flow process realizes the cascade utilization of the energy, and the namely first soil heat exchange with 15 DEG C of high-temperature-hot-water, then the water tank with 10 DEG C changes Heat) it is consequently formed recuperated cycle.Now solar energy is the most sufficient, by storage of solar energy on stratum, to discharge confession at night Heat.If at night, or sleet sky, solar energy cannot use, and is disconnected by solar thermal collector now by three-way valve, system It is in again the state of only ground heat exchanger heat supply.Owing to the present invention has only to make the water temperature in low temperature water tank to be not less than 10 DEG C , so individually underground heat disclosure satisfy that.When solar energy is moderate, solar thermal collector leaving water temperature and soil moisture temperature Difference is less, and heat-exchange performance is poor, is now used alone solar thermal collector.Therefore, the present invention can be by four three-way valve at list Switch under only solar-heating, single geothermal energy heat supply and both combined heat Three models.
Low temperature water tank 3 is for of short duration storage underground heat or solar thermal collector heat-collecting capacity, to maintain water temperature in low temperature water tank Stable in certain scope, its thermal-arrest side is set to indirect heat exchange pattern, and (indirect heat exchange pattern refers to low temperature water tank heat exchange coil Water inside the water of the inside and water tank is not directly contacted with, and carries out heat exchange by tube wall).Low temperature water tank heat exchange coil is vertically arranged And upper end is heat exchange coil outlet;Low temperature water tank outlet is arranged on low temperature water tank top, and low temperature water tank water inlet is arranged on Bottom low temperature water tank;Between water inlet and heat exchange coil lower end, horizontal baffle 10 it is provided with, to reduce in low temperature water tank Water the temperature inside the box is caused bigger fluctuation by the relatively low water inlet of temperature.Horizontal baffle 10 is actually disposed at above water inlet At 200mm.For realizing making full use of of heat in water tank, user side is set to direct-furnish pattern, and (direct-furnish pattern i.e. directly utilizes Water inside water tank rather than carry out heat exchange by a coil pipe).
The present invention has for two kinds of big mode of operations of warm refrigeration, and both of which shares vaporizer 5, compressor 9, choke valve 8.Wherein heat and include single geothermal heating system, single solar heating, underground heat and solar association three kinds of heating of heating Pattern, therefore a total of four kinds of mode of operations of the present invention.Wherein solar thermal collector 1 and ground heat exchanger 2, circulating pump 4 and low temperature water tank 3 collectively form the heat collection unit of system, for heating the water in low temperature water tank, make the temperature in water tank tie up Hold in certain temperature range.When heat supply in winter and domestic hot-water, multi-state recuperation of heat net for air-source heat pump units is adjusted by valve Joint realizes the conversion of different heating mode, is particularly suitable for cold district residential architecture.Illustrate individually below.
Pattern one (single geothermal heating system, see Fig. 3):
1, it is suitable for condition: night in winter, solar energy scarcity on daytime;
2, mode of operation: utilize geothermal energy;
3, heat transfer process: heat collection unit obtains heat by ground heat exchanger 2, by heat exchange coil and low temperature water tank 3 Water at low temperature carry out heat exchange, be not less than 10 DEG C with water temperature in maintaining low temperature water tank.Refrigerant suction in vaporizer 5 is from low Heat in reservoir 3, after refrigerant suction heat, the gaseous refrigerant becoming low-temp low-pressure mutually arrives compressor 9, passes through The compression of compressor 9 becomes the liquid refrigerant of High Temperature High Pressure and arrives heat recovery heat exchange device 7, and release heat is to user side Circulating hot water, reach the function of supplying hot water.
Low temperature water tank 3 accesses ground heat exchanger 2 and carries out first step heat exchange;Low temperature water tank 3 accesses the evaporation of source pump Device 5 carries out second step heat exchange, and the water of user side flows into source pump condenser 6 and carries out the 3rd step heat exchange.
Pattern two (single solar heating, see Fig. 4):
1, it is suitable for condition: when daytime, solar energy was relatively sufficient;
2, mode of operation: utilize solar energy;Disconnect ground heat exchanger 2 now by three-way valve, only access solar energy heating Device 1.
3, heat transfer process: carry out heat exchange with the water at low temperature in low temperature water tank 3 after carrying out thermal-arrest by solar thermal collector 1, It is not less than 10 DEG C with the water in maintenance low temperature water tank.Follow-up heat transfer process is identical with pattern one.
(underground heat and solar association heating, this pattern the most only make use of solar heating to pattern three, simply opens simultaneously With solar thermal collector and underground pipe), see Fig. 2):
1, it is suitable for condition: solar energy is the most sufficient, and low temperature water tank leaving water temperature is of a relatively high;
2, mode of operation: utilize three-way valve that ground heat exchanger 2 and solar thermal collector 1 are concurrently accessed system;Utilize the sun Can heat with geothermal energy;
3, heat transfer process: the water outlet of solar thermal collector 1 enters underground pipe 2 and carries out heat exchange, enters back into low temperature water tank 3 and changes Heat, eventually passes back to solar thermal collector 1.It is same that this pattern solar thermal collector coolant-temperature gage in meeting low temperature water tank requires Time, unnecessary heat is stored in underground by ground heat exchanger 2, while improving solar thermal collector collecting efficiency, Also the accumulation of heat effect to soil mass can be realized.Follow-up heat transfer process is identical with pattern one.
When solar radiation on daytime is poor, sleet sky and when heating night, heat collection unit part is passed through valve transfer, is closed too Sun energy heat collector 1, individually opens ground heat exchanger 2, maintains the water temperature in low temperature water tank 3 the lowest by ground heat exchanger 2 In 10 DEG C, it is switched to the most again pattern one.
Pattern four (refrigeration mode is shown in Fig. 5):
1, it is suitable for condition: when needs refrigeration in summer;
2, mode of operation: by valve transfer, closes heat collection unit and heat recovery units, will the vaporizer left side and low temperature water tank That group switch valve connected cuts out, and that group switch valve of vertical direction is opened;Close recuperation of heat heat exchange by three-way valve to fill simultaneously Put 7, access condenser 6;Now vaporizer 2, compressor 9, condenser 6 and choke valve 8 collectively form a kind of refrigeration cycle;
3, heat transfer process: the heat of the refrigerant suction user's water in vaporizer 5, is allowed to turn cold, thus the summer system of realization Cold purpose.After refrigerant suction heat, the gaseous refrigerant becoming low-temp low-pressure mutually arrives compressor 9, by compressor 9 Compression become the liquid refrigerant of High Temperature High Pressure and arrive condenser 7, condenser 7 heat is directly discharged into air.
The present invention takes full advantage of can the system of total heat recovery air source heat pump system as low level heat energy with solar energy-ground Cold+heat recovery mode, makes the water at low temperature in low temperature water tank by a small amount of solar energy (flat board) heat collector and ground heat exchanger Whole confession warm season maintains the state being not less than 10 DEG C, and the net for air-source heat pump units of band recuperation of heat is by running refrigeration+recuperation of heat Pattern, it is achieved cold district COP value Effec-tive Function between 4.6-6.2, well solves net for air-source heat pump units winter Low-energy-efficiency and frosting problem when cold district runs.Meanwhile, obtained by a small amount of heat-collecting device and ground heat exchanger The mode of water at low temperature is simple, and, relative to traditional plate solar thermal-arrest direct-furnish end or Heating by Ground Source Heat Pump system System cost is greatly reduced.
Last it should be noted that the examples detailed above of the present invention is only for example of the present invention is described, and not It it is the restriction to embodiments of the present invention.Although the present invention has been described in detail by applicant with reference to preferred embodiment, right For those of ordinary skill in the field, can also make on the basis of the above description other multi-forms change and Variation.Here cannot all of embodiment be given exhaustive.Every belong to that technical scheme amplified out aobvious and The change that is clear to or variation are still in the row of protection scope of the present invention.

Claims (4)

1. can total heat recovery air source heat pump system as low level heat energy with solar energy-ground, it is characterised in that: include being embedded in The ground heat exchanger on stratum, low temperature water tank, vaporizer, condenser, heat recovery heat exchange device and compressor, ground heat exchanger Be embedded in stratum for soil heat exchange, in low temperature water tank, vaporizer and heat recovery heat exchange device, be respectively equipped with heat exchange coil; The water inlet of low temperature water tank heat exchange coil and outlet pass through outlet and the water inlet of pipeline ground connection buried tube heat exchanger respectively, with The geothermal transfer absorbed by ground heat exchanger is to low temperature water tank;Connect between ground heat exchanger at low temperature water tank heat exchange coil Pipeline be provided with circulating pump;
The water inlet of low temperature water tank and outlet connect evaporator heat exchange coil pipe outlet and water inlet by pipeline respectively;Two even Adapter is respectively equipped with switch valve on road, and a pipeline is provided with circulating pump wherein;Two switch valves and evaporator heat exchange coil pipe it Between pipeline be provided with chilled water pipeline, chilled water pipeline, for connecing the Inlet and outlet water of user, chilled water pipeline also is provided with switch Valve;
The refrigerant outlet of vaporizer connects compressor and heat recovery heat exchange device import, heat recovery heat exchange device successively by pipeline Outlet connects the refrigerant inlet of choke valve and vaporizer successively by pipeline;Heat exchange coil two ends in heat recovery heat exchange device are divided Do not meet user, to send user back to after user is sent into the cool water heating in heat recovery heat exchange device heat exchange coil;
Between the pipeline that the pipeline being connected with compressor at heat recovery heat exchange device and heat recovery heat exchange device are connected with choke valve Being provided with air-cooled condenser, air-cooled condenser two ends are connected to by three-way valve I on the pipeline of correspondence respectively.
The most according to claim 1 with solar energy-ground can total heat recovery air source heat pump system as low level heat energy, its Being characterised by: also include solar thermal collector, the water inlet of solar thermal collector and outlet are respectively by three-way valve II, threeway Valve III is connected on the pipeline that low temperature water tank heat exchange coil outlet is connected with ground heat exchanger water inlet;In underground pipe heat exchange Pipeline between device outlet and low temperature water tank heat exchange coil water inlet is provided with three-way valve IV, goes out at low temperature water tank heat exchange coil Being additionally provided with three-way valve V with ground heat exchanger water inlet on the pipeline that the mouth of a river is connected, three-way valve V is than three-way valve II, three-way valve III more draws close ground heat exchanger, three-way valve IV and three-way valve V is remained and is directly connected to by pipeline between terminal.
The most according to claim 1 with solar energy-ground can total heat recovery air source heat pump system as low level heat energy, its It is characterised by: low temperature water tank heat exchange coil is vertically arranged and upper end is heat exchange coil outlet;Low temperature water tank outlet is arranged on Low temperature water tank top, low temperature water tank water inlet is arranged on bottom low temperature water tank;Water inlet and heat exchange dish it is positioned in low temperature water tank Pipe is provided with horizontal baffle between lower end, with the water inlet reducing temperature relatively low, water the temperature inside the box is caused bigger fluctuation.
The most according to claim 1 with solar energy-ground can total heat recovery air source heat pump system as low level heat energy, its It is characterised by: described heat recovery heat exchange device is water-cooled condenser.
CN201610587726.9A 2016-07-25 2016-07-25 Can total heat recovery air source heat pump system as low level heat energy with solar energy ground Pending CN106225318A (en)

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Application publication date: 20161214