CN107062698B - A kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump - Google Patents
A kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 29
- 239000011901 water Substances 0.000 title 1
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- 239000003507 refrigerant Substances 0.000 claims abstract description 22
- 238000009825 accumulation Methods 0.000 claims abstract description 19
- 238000001704 evaporation Methods 0.000 claims abstract description 11
- 238000005338 heat storage Methods 0.000 claims abstract description 8
- 230000001172 regenerating Effects 0.000 claims description 4
- 230000001131 transforming Effects 0.000 claims description 3
- 230000002411 adverse Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001808 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
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- 238000004378 air conditioning Methods 0.000 description 1
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- 230000005494 condensation Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- 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
- F25B30/02—Heat pumps of the compression type
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plant or systems
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
Abstract
A kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump.It is characterized by: adjusting the angle of solar thermal collector in real time using full-automatic sun tracking device, makes sunlight vertical irradiation to solar thermal collector, obtain maximum solar energy；Direct expanding solar heating pump system maintains refrigerant evaporating temperature in a certain range, to substantially reduce influence of the variation to system stability of solar radiation intensity by setting phase transition heat accumulation unit；Storage can be carried out to the sun by hot water storage tank, and agency water is preheated, so that the heat that direct expanding solar heating pump system is produced effectively is passed to heat user, and then completes the efficient coupling of solar energy heating, heat storage technology and water resource heat pump.Benefit and effect of the invention is to efficiently solve the intermittence and instability problem that solve solar energy resources, and the system of ensure that can stablize energy supply, greatly improve system performance, high-efficiency environment friendly.
Description
Technical field
The invention belongs to technical field of energy utilization, it is related to a kind of efficient direct expanding solar heating pump and water resource heat pump coupling
Close heating system.
Background technique
The utilization of the Cooling and Heat Sources such as sewage, seawater, underground water can alleviate the situation of current energy shortage, have good
Energy-saving effect, environmental benefit and economic benefit, will save freshwater resources increasingly in short supply, open up new field for using energy source,
A new thinking is provided using water resource comprehensively to be comprehensive.Solar energy is inexhaustible, is clean renewable energy
Source.China has a vast territory, and solar energy resources are very rich.Solar radiation has dispersibility, and heat collector is collection solar energy, and will
The equipment for being converted into thermal energy, the performance of heat collector directly affects the quality for the solar energy being collected into.Meanwhile solar radiation variations
It with randomness, is needed in conjunction with other heat sources when in use, to guarantee that system can stablize energy supply.Heat pump system is a kind of property
The superior cooling supply heating system of energy, in conjunction with solar energy, the two help each other can further increase energy-saving effect.Direct-expansion type
Solar heat collector and evaporator with heat pump are combined into one by solar heat pump, combine solar energy utilization technique and heat pump energy-conserving skill
The advantages of art, can significantly improve the evaporating temperature and COP value of system.Therefore, by high performance heat collector and heat pump system phase
It is used for building air conditioning field in conjunction with the solar energy heat pump system of composition, building energy consumption can be effectively reduced, adjust China's energy knot
Structure a, it has also become hot spot of current solar utilization technique research.
At present solve solar energy resources intermittence and instability problem, how to research and develop efficient solar energy heating,
Heat storage technology carries out coupling the bottleneck as promoting and applying with water resource heat pump.
Summary of the invention
In previous direct expanding solar heating pump system, the effect of regenerative apparatus is that storage refrigerant is put in condensation process
Heat out, and present invention aims at, using full-automatic sun tracking device, the angle of solar thermal collector is adjusted in real time,
Make sunlight vertical irradiation to solar thermal collector, obtain maximum solar energy, and in direct expanding solar heating pump system
The middle solar radiation energy for increasing phase transition heat accumulation unit storage refrigerant and directly absorbing, in a certain range due to phase transition temperature,
Refrigerant temperature after flowing through regenerative apparatus can also maintain in corresponding range, achieve the purpose that maintain evaporating temperature, thus
Guarantee solar heat pump stablizes energy supply；Simultaneously the direct expanding solar heating pump system hot water producing out by hot water storage tank into
Row storage, and intermediary's water of water resource heat pump is preheated, to achieve the purpose that efficiently to utilize solar energy.
The present invention is achieved by the following technical solutions, and whole system is by water pump (1), automatic pollution removing device (2), changes
Hot device (3), return pipe (4), intermediary's water-circulating pump (5), hot water storage tank (6), full-automatic sun tracking device (7), electronic expansion
Valve (8), solar thermal collector (9), control valve A (10), control valve B (11), phase transition heat accumulation unit (12), compressor (13), water
The composition such as source heat pump unit (14), user side circulating pump (15), heat user (16).Whole system is broadly divided into three cyclic systems
System: efficient direct expanding solar heating pump system, low level Cooling and Heat Source water circulation system and intermediary's water circulation system etc..
Efficient direct expanding solar heating pump system: it utilizes full-automatic sun tracking device (7), adjusts solar energy heating in real time
The angle of device (9) makes sunlight vertical irradiation to solar thermal collector (9), obtains maximum solar energy；Refrigerant passes through
Solar thermal collector (9) absorbs solar energy, sequentially enters phase transition heat accumulation unit (12), compressor (13), hot water storage tank (6), electricity
Sub- expansion valve (8), completes a closed circuit, and refrigerant completes heat absorption, heat exchange, by compression, heat release, throttling in the circuit
Cyclic process, the water in final hot water storage tank absorbs the heat that refrigerant is released, and heat storage is got up.According to solar radiation
The size of intensity, direct expanding solar heating pump system running pattern share Three models:
Heat supply mode
When solar radiation intensity is suitble to, control valve A (10) is opened, and control valve B (11) is closed, and system does not need to open
Phase transition heat accumulation unit (12), refrigerant are directly entered compressor (13) by solar thermal collector (9) and are compressed into high temperature and pressure
The laggard people's hot water storage tank (6) of gas condenses heat release.
Accumulation of heat mode
When solar radiation intensity is very high, control valve A (10) is closed, and control valve B (11) is opened, and system is opened phase transformation and stored
The temperature of thermal (12), the refrigerant flowed out at this time by solar thermal collector (9) is excessively high and has the higher degree of superheat, if directly
It taps into compressor (13), compressor (13) can be adversely affected, filled before flowing into compressor (13) by phase-transition heat-storage
(12) accumulation of heat is set, evaporating temperature can be made to be maintained at certain temperature.
Heat release mode
When solar radiation intensity is relatively low, refrigerant evaporating temperature is reduced, and system performance reduces, at this time phase-transition heat-storage
Device (12) is released to refrigerant for heat is stored, and refrigerant temperature can be made to increase, and improves evaporating temperature, and then improve system
Performance.The circulation route of the method for operation and refrigerant is with accumulation of heat mode, and only the working condition of phase transition heat accumulation unit (12) is to put
Heat.
Low level Cooling and Heat Source water circulation system: the water body of low level Cooling and Heat Source is pumped into automatic pollution removing device (2) by water pump (1),
Dirty sundries is removed；Filtered water enters heat exchanger (3) and exchanges heat with intermediary water, drains after heat exchange through return pipe (4).
Intermediary's water circulation system: intermediary's water extracts low level under the driving of intermediary's water-circulating pump (5), into heat exchanger (3)
Then heat in Cooling and Heat Source water body is further heated by hot water storage tank (6), subsequently into water source heat pump units (14)
Evaporator heat is discharged, thus complete one circulation.Water source heat pump units (14), which are produced, to be passed through with the high-temperature water of heat supply
User side circulating pump (15) is admitted to heat user (16) and carries out heat supply.
Compared with former existing technology, the present invention has substantive distinguishing features and significant progress, utilizes in the present invention complete
Automatic sun tracking device adjusts the angle of solar thermal collector in real time, makes sunlight vertical irradiation to solar thermal collector, obtain
Obtain maximum solar energy；Direct expanding solar heating pump system makes refrigerant evaporating temperature by setting phase transition heat accumulation unit
It maintains in a certain range, to substantially reduce influence of the variation to system stability of solar radiation intensity；Pass through storage
Boiler can be carried out storage to the sun, and agency water is preheated, thus the heat that direct expanding solar heating pump system is produced
Amount effectively passes to heat user, and then completes the efficient coupling of solar energy heating, heat storage technology and water resource heat pump.Benefit of the invention
Place is to efficiently solve the intermittence and instability problem that solve solar energy resources with effect, and the system of ensure that can stablize confession
Can, greatly improve system performance, high-efficiency environment friendly.
Detailed description of the invention
Fig. 1 is the invention patent schematic illustration.
In figure: by 1 water pump, 2 automatic pollution removing devices, 3 heat exchangers, 4 return pipes, 5 intermediary's water-circulating pumps, 6 hot water storage tanks, 7
Full-automatic sun tracking device, 8 electric expansion valves, 9 solar energy heatings (evaporation) device, 10 control valve A, 11 control valve B, 12 phase transformations
Regenerative apparatus, 13 compressors, 14 water source heat pump units, 15 user side circulating pumps, 16 heat users
Specific embodiment
A specific embodiment of the invention is described in detail below in conjunction with attached drawing and technical solution:
As shown in Figure 1, refrigerant absorbs solar energy by solar thermal collector (9), phase transition heat accumulation unit is sequentially entered
(12), compressor (13), hot water storage tank (6), electric expansion valve (8), complete a closed circuit, are finally stored in solar energy
In hot water storage tank (6).The water body of low level Cooling and Heat Source is pumped into automatic pollution removing device (2) by water pump (1), and dirty sundries is removed；It crosses
Water after filter enters heat exchanger (3) and exchanges heat with intermediary water.Intermediary's water is under the driving of intermediary's water-circulating pump (5), into changing
Hot device (3) extracts the heat in low level Cooling and Heat Source water body, is then further heated by hot water storage tank (6), subsequently into water
Evaporator in source heat pump unit (14) discharges heat, to complete a circulation.Water source heat pump units (14) produce high temperature
Water is admitted to heat user (16) by user side circulating pump (15) and carries out heat supply.
Claims (2)
1. a kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump, including is filled by water pump (1), automatic pollution removing
Set (2), heat exchanger (3), return pipe (4), intermediary's water-circulating pump (5), hot water storage tank (6), full-automatic sun tracking device (7),
Electric expansion valve (8), solar thermal collector (9), control valve A (10), control valve B (11), phase transition heat accumulation unit (12), compressor
(13), water source heat pump units (14), user side circulating pump (15), heat user (16) etc. form,
It is characterized by: adjusting the angle of solar thermal collector in real time using full-automatic sun tracking device, keeping sunlight vertical
It is irradiated to solar thermal collector, obtains maximum solar energy；Increase phase-transition heat-storage in direct expanding solar heating pump system
The solar radiation energy that device storage refrigerant directly absorbs, guarantee solar heat pump stablizes energy supply；The direct-expansion type sun simultaneously
The hot water that energy heat pump system is produced out is stored by hot water storage tank, and is preheated to intermediary's water of water resource heat pump, from
And achieve the purpose that efficiently to utilize solar energy；
Water pump (1) is successively connect with automatic pollution removing device (2), heat exchanger (3) with return pipe (4) by pipeline；
Intermediary's water-circulating pump (5) is successively connect with heat exchanger (3), hot water storage tank (6) with water source heat pump units (14) by pipeline；
Electric expansion valve (8) is divided into two branches, branch by piping connection solar thermal collector (9), solar thermal collector (9)
One is sequentially connected control valve B (11) and setting control valve A (10) on phase transition heat accumulation unit (12), branch two, after two branches converge
Compressor (13) and hot water storage tank (6) are sequentially connected by pipeline；Full-automatic sun tracking device (7) and solar thermal collector
(9) it is connected；
User side circulating pump (15) is successively connect with water source heat pump units (14) with heat user (16) by pipeline.
2. efficient direct expanding solar heating pump according to claim 1 couples heating system with water resource heat pump, therein straight
Expanding solar heat-pump system, which is characterized in that according to the size of intensity of solar radiation, direct expanding solar heating pump realizes three kinds
Operational mode,
1. heat supply mode:
When solar radiation intensity is suitble to, control valve A (10) is opened, and control valve B (11) is closed, and system does not need to open phase transformation
Regenerative apparatus (12), refrigerant are directly entered the gas that compressor (13) is compressed into high temperature and pressure by solar thermal collector (9)
Laggard people's hot water storage tank (6) condenses heat release；
2. accumulation of heat mode:
When solar radiation intensity is very high, control valve A (10) is closed, and control valve B (11) is opened, and system opens phase-transition heat-storage dress
Set (12), the temperature by the refrigerant of solar thermal collector (9) outflow is excessively high and have the higher degree of superheat at this time, if directly into
Enter compressor (13), compressor (13) can be adversely affected, phase transition heat accumulation unit is passed through before flowing into compressor (13)
(12) accumulation of heat can make evaporating temperature be maintained at certain temperature；
3. Heat release mode:
When solar radiation intensity is relatively low, refrigerant evaporating temperature is reduced, and system performance reduces, at this time phase transition heat accumulation unit
(12) storage heat is released to refrigerant, refrigerant temperature can be made to increase, improve evaporating temperature, and then improve systematicness
Energy；The circulation route of the method for operation and refrigerant is with accumulation of heat mode, and only the working condition of phase transition heat accumulation unit (12) is heat release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225325.5A CN107062698B (en) | 2016-12-27 | 2016-12-27 | A kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225325.5A CN107062698B (en) | 2016-12-27 | 2016-12-27 | A kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump |
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| Publication Number | Publication Date |
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| CN107062698A CN107062698A (en) | 2017-08-18 |
| CN107062698B true CN107062698B (en) | 2019-07-12 |
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