CN109373703A - A kind of cold-hot-chp system and method based on liquid air energy storage - Google Patents
A kind of cold-hot-chp system and method based on liquid air energy storage Download PDFInfo
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- CN109373703A CN109373703A CN201810924768.6A CN201810924768A CN109373703A CN 109373703 A CN109373703 A CN 109373703A CN 201810924768 A CN201810924768 A CN 201810924768A CN 109373703 A CN109373703 A CN 109373703A
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- 239000007788 liquid Substances 0.000 title claims abstract description 88
- 238000004146 energy storage Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 253
- 238000007906 compression Methods 0.000 claims abstract description 95
- 230000006835 compression Effects 0.000 claims abstract description 91
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 238000010248 power generation Methods 0.000 claims abstract description 31
- 239000003507 refrigerant Substances 0.000 claims description 154
- 239000013529 heat transfer fluid Substances 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 26
- 230000001105 regulatory effect Effects 0.000 claims description 23
- 238000009833 condensation Methods 0.000 claims description 13
- 230000005494 condensation Effects 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 239000011555 saturated liquid Substances 0.000 claims description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000008901 benefit Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 230000001932 seasonal effect Effects 0.000 claims description 4
- 238000004887 air purification Methods 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000001294 propane Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010992 reflux Methods 0.000 claims 1
- 238000004781 supercooling Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0012—Primary atmospheric gases, e.g. air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
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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
- F25B27/00—Machines, plants or systems, using particular sources of energy
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/0042—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by liquid expansion with extraction of work
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/0045—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by vaporising a liquid return stream
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0201—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration
- F25J1/0202—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration in a quasi-closed internal refrigeration loop
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
- F25J1/0235—Heat exchange integration
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
- F25J1/0235—Heat exchange integration
- F25J1/0242—Waste heat recovery, e.g. from heat of compression
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0244—Operation; Control and regulation; Instrumentation
- F25J1/0245—Different modes, i.e. 'runs', of operation; Process control
- F25J1/0251—Intermittent or alternating process, so-called batch process, e.g. "peak-shaving"
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0296—Removal of the heat of compression, e.g. within an inter- or afterstage-cooler against an ambient heat sink
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/24—Processes or apparatus using other separation and/or other processing means using regenerators, cold accumulators or reversible heat exchangers
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/40—Air or oxygen enriched air, i.e. generally less than 30mol% of O2
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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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/90—Hot gas waste turbine of an indirect heated gas for power generation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of cold-hot-chp system and method based on liquid air energy storage, which includes that air liquefaction circulation loop, air power generation cycle circuit, cold energy supply circulation loop, thermal energy supply circulation loop and domestic hot-water supply circulation loop.In air liquefaction circulation, high pressure is compressed air to using trough-electricity or renewable energy, and stores the heat of compression of air compression process generation；Pressure-air is depressured through supercooling and obtains liquid air, and electric energy is mainly stored in the form of liquid air.Peak of power consumption period, air power generation cycle are started to work: after low temperature liquid air is overpressurized, is classified release cryogenic cold energy, high temperature are superheated to by partial shrinkage heat, into air turbine unit expansion power generation.When user needs cooling supply, high-temperature-hot-water and domestic hot-water, extra air compression thermal drivers cold energy supply circulation, thermal energy supply circulation and domestic hot-water supply circulation and obtain chilled water, high-temperature-hot-water and domestic hot-water respectively.The present invention can be realized liquid air energy storage cold-hot-electricity supply, improves system effectiveness and promote the purpose of small-scale liquid air energy storage.
Description
Technical field
It is more in a kind of cascade utilization liquid air thermal energy storage process the present invention relates to a kind of novel cooling heating and power generation system
The method that the remaining air heat of compression realizes supply of cooling, heating and electrical powers belongs to liquid air energy storage, cogeneration and thermal energy step and utilizes
Technical field.
Background technique
Liquid air energy storage technology is a kind of using liquid air or nitrogen as the deep cooling energy storage technology of energy-accumulating medium.With
When electric low-valley interval or extra renewable energy, compressed using electrical energy production liquid air or nitrogen, while by air or nitrogen
The high temperature compressed thermmal storage generated in the process；Peak of power consumption period, liquid air or nitrogen are by force (forcing) pump pressurization, release
After cryogenic cold energy, stored high temperature compressed heat is heated to high temperature, into air turbine expansion power generation.Liquid air energy storage has
The features such as energy storage density is big, the response time is short and is not limited by geographical conditions, has obtained extensive concern.
Liquid air energy-storage system circulating generation efficiency with higher under high pressure operating condition, therefore liquid air storage at present
The research and application of energy focus primarily upon extensive high pressure operating condition.It finds after study, in liquid air energy-storage system, air fluid
Change process generate it is high temperature compressed heat usually more than liquid air power generation process can efficiently simultaneously economic utilization heat, it is excessive
High temperature compressed heat is typically directly discharged into environment, is not utilized effectively, causes the waste of energy.In addition, air liquefaction
Pressure is smaller, and extra high temperature compressed heat is more.By rationally utilizing extra high temperature compressed heat, liquid air energy storage system can be made
System same cycle efficieny with higher under low pressure operating condition.
Any one enterprise or family, all have diversity, including electric power, heating, refrigeration, life for the demand of the energy
Hot water etc..These demands are to be solved respectively in traditional industry society by each professional enterprise.Here maximum problem
It is that efficiency of energy utilization is low, equipment service efficiency is low, to bring the aggravation etc. of waste and the environmental pollution of resource and fund
Problem.The utilization efficiency of the energy not only can be improved in cogeneration, but also can reduce the discharge of carbide and pernicious gas,
With good economic efficiency and social benefit.
Therefore, it is efficient and rational it is economical utilize the air heat of compression extra in liquid air thermal energy storage process, realize cool and thermal power
Coproduction, for improving liquid air energy-storage system efficiency, promoting small-sized liquid air energy storage systems and increasing economic results in society
Have great importance.
Summary of the invention
In view of the deficiencies of the prior art, the invention proposes a kind of cold-hot-chp systems based on liquid air energy storage
And the extra air heat of compression in liquid air thermal energy storage process is carried out cascade utilization by method, the system, for cooling supply, heat supply and
Domestic hot-water supply significantly improves system effectiveness to realize liquid air energy-storage system supply of cooling, heating and electrical powers, especially small-scale system
Efficiency when system low pressure operation.In addition, the system can meet the needs of user's Various Seasonal is to the energy, it is a kind of efficient and rational
Cogeneration mode.
For achieving the above object, the invention adopts the following technical scheme:
A kind of cold-hot-chp system based on liquid air energy storage of the invention, which includes that air liquefaction is recycled back to
Road, air power generation cycle circuit, cold energy supply circulation loop, thermal energy supply circulation loop and domestic hot-water supply circulation loop；
Wherein:
The air liquefaction circulation loop includes: air-compressor set, the air-compressor set have right side input terminal, left side output end,
Lower input and lower output side；High-grade compresses hot tank, the upper input of the high-grade compression hot tank and institute
State the lower output side connection of air-compressor set；Low-grade compression hot tank, the upper output terminal of the low-grade compression hot tank
It is connect with the lower input of the air-compressor set；First Heat Exchanger, the right side input terminal and the sky of the First Heat Exchanger
The left side output end of press group connects；The upper right side output end of the First Heat Exchanger and the right side input terminal of the air-compressor set
Connection；The output end of first circulation pump, the first circulation pump is connect with the lower left side input terminal of the First Heat Exchanger；Middle product
Position the second storage tank of cold energy, the output end of middle second storage tank of grade cold energy are connect with the input terminal that the first circulation pumps；It is low
The input terminal of grade cold energy storage tank, the low-grade cold energy storage tank is connect with the lower right side output end of the First Heat Exchanger；The
Two heat exchangers, the right side input terminal of second heat exchanger are connect with the left side output end of the First Heat Exchanger；Described second
Heat exchanger upper right side output end is connect with the upper left side input terminal of the First Heat Exchanger；Third circulating pump, the third circulation
The output end of pump is connect with the lower left side input terminal of second heat exchanger；High-grade cold energy storage tank, the high-grade cold energy storage
The output end of tank is connect with the input terminal of the third circulating pump；Middle the first storage tank of grade cold energy, the middle grade cold energy first
The input terminal of storage tank is connect with the lower right side output end of second heat exchanger；Low temperature turbine, the input terminal of the low temperature turbine
It is connect with the left side output end of second heat exchanger；Liquid air storage tank, the upper input of the liquid air storage tank with
The output end of the low temperature turbine connects；The upper left side of the upper output terminal of the liquid air storage tank and second heat exchanger
Input terminal connection；Air power generation cycle circuit and air liquefaction circulation loop share liquid air storage tank, high-grade cold energy
Storage tank, middle the first storage tank of grade cold energy, middle the second storage tank of grade cold energy, low-grade cold energy storage tank, high-grade compression hot tank and
Low-grade compression hot tank, further includes: the right side of force (forcing) pump, the input terminal of the force (forcing) pump and the liquid air storage tank exports
End connection；The lower left side input terminal of first evaporator, first evaporator is connect with the output end of the force (forcing) pump；Described
The upper left side output end of one evaporator is connect with the input terminal of the high-grade cold energy storage tank；4th circulating pump, the described 4th follows
The output end of ring pump is connect with the upper right side input terminal of first evaporator；The input terminal of 4th circulating pump and it is described in
The output end of the first storage tank of grade cold energy connects；Second evaporator, the lower left side input terminal of second evaporator and described the
The lower right side output end of one evaporator connects；The upper left side output end of second evaporator and the middle grade cold energy second store up
The input terminal of tank connects；Second circulation pump, the output end of the second circulation pump and the upper right side of second evaporator input
End connection；The input terminal of the second circulation pump is connect with the output end of the low-grade cold energy storage tank；Air turbine unit, institute
The left side input terminal for stating air turbine unit is connect with the lower right side output end of second evaporator；The air turbine unit
The lower output side of upper input and the high-grade compression hot tank connect；The top of the air turbine unit exports
It holds and is connect with the lower input of the low-grade compression hot tank；User, the energization input of the user and the air
The motor output end of turbine set connects；The cold energy supply circulation loop and air power generation cycle circuit share high-grade compression
Hot tank and user, further includes: the first reversal valve, the upper input of first reversal valve and the high-grade heat of compression are stored up
The lower output side of tank connects；High pressure generator, a left side for the right side input terminal of the high pressure generator and first reversal valve
The connection of side output end；High-temperature heat exchanger, the lower part of the upper input of the high-temperature heat exchanger and the high pressure generator
Output end connection；The upper output terminal of the high-temperature heat exchanger is connect with the lower input of the high pressure generator；Second
The input terminal of solution throttle valve, the second solution throttle valve is connect with the lower output side of the high-temperature heat exchanger；Low temperature
Heat exchanger, the right side input terminal of the low temperature heat exchanger are connect with the output end of the second solution throttle valve；It is described low
The right side output end of temperature heat exchanger is connect with the lower input of the high-temperature heat exchanger；First solution throttle valve, it is described
The upper input of first solution throttle valve is connect with the right side output end of the low temperature heat exchanger；Low pressure generator, it is described
The upper input of low pressure generator is connect with the lower output side of the first solution throttle valve；The right side of the low pressure generator
Upside input terminal is connect with the lower right side output end of the high pressure generator；The lower output side of the low pressure generator with it is described
The right side input terminal of low temperature heat exchanger connects；Third reversal valve, the upper input of the third reversal valve and the low pressure
The lower right side output end of generator connects；Third solution throttle valve, the right side input terminal of the third solution throttle valve with it is described
The upper left side output end of low temperature heat exchanger connects；Solution force (forcing) pump, the output end and the Low Temperature Thermal of the solution force (forcing) pump
The lower left side input terminal of exchanger connects；Absorber, the upper input of the absorber and the third solution throttle valve
Output end connection；The upper output terminal of the absorber is connect with the input terminal of the solution force (forcing) pump；Refrigerant evaporator, institute
The right side output end for stating refrigerant evaporator is connect with the left side input terminal of the absorber；The left side of the refrigerant evaporator
Output end is connect with the cooling supply input terminal of the user；The left side input terminal of the refrigerant evaporator and the cooling supply of the user
Output end connection；First refrigerant throttle valve, the lower output side and the refrigerant of the first refrigerant throttle valve evaporate
The upper input of device connects；Condenser, the top of the lower output side of the condenser and the first refrigerant throttle valve
Input terminal connection；The top of second refrigerant throttle valve, the output end and the condenser of the second refrigerant throttle valve is defeated
Enter end connection；Third refrigerant throttle valve, the output end of the third refrigerant throttle valve and the top of the condenser input
End connection；4th refrigerant throttle valve, the output end of the 4th refrigerant throttle valve and the upper input of the condenser
Connection；The upper output terminal of refrigerant reversing valves, the upper input of the refrigerant reversing valves and the high pressure generator connects
It connects；The thermal energy supply circulation loop and cold energy supply circulation loop share the first reversal valve, third reversal valve, second refrigerant
Throttle valve, refrigerant reversing valves and user, further includes: the second reversal valve, the upper input of second reversal valve with it is described
The lower output side of first reversal valve connects；The left side output end of second reversal valve and the right side of the third reversal valve are defeated
Enter end connection；First water heater, the left side input terminal of first water heater and the right side output end of the refrigerant reversing valves
Connection；The left side output end of first water heater is connect with the input terminal of the second refrigerant throttle valve；First heat
The right side input terminal of hydrophone is connect with the left side output end of the third reversal valve；The upper output terminal of first water heater with
The heat supply input terminal of the user connects；The lower input of first water heater and connecting for hot output terminal for the user
It connects；The right side input terminal of 4th reversal valve, the 4th reversal valve is connect with the lower output side of second reversal valve；It is described
The upper input of 4th reversal valve is connect with the right side output end of first water heater；Domestic hot-water's supply is recycled back to
Road and thermal energy supply circulation loop share the 4th reversal valve, refrigerant reversing valves and user, share with air power generation cycle circuit
Low-grade compression hot tank shares low pressure generator, third refrigerant throttle valve and the 4th refrigeration with cold energy supply circulation loop
Agent throttle valve, further includes: under the second water heater, the upper left side input terminal of second water heater and the refrigerant reversing valves
The connection of portion's output end；The upper left side output end of second water heater is connect with the third refrigerant throttle valve input terminal；Institute
The lower left side input terminal for stating the second water heater is connect with the upper output terminal of the low pressure generator；A left side for second water heater
Lower side output terminal is connect with the input terminal of the 4th refrigerant throttle valve；The right side input terminal of second water heater with it is described
The left side output end of 4th reversal valve connects；The right side output end of second water heater and the low-grade compression hot tank
Input terminal connection；The upper output terminal of second water heater is connect with the domestic hot-water supply input terminal of the user；Described
The lower input of two water heaters is connect with cold water.
Further, the air-compressor set includes one or more air compressor machines and cooler；The air turbine unit packet
Containing one or more heaters and air turbine.
Preferably, the air liquefaction circulation can be using working medium such as air or nitrogen；Middle the second storage tank of grade cold energy and
The heat-transfer fluid of low-grade cold energy storage tank can be methanol or air etc.；High-grade cold energy storage tank and middle the first storage tank of grade cold energy
Heat-transfer fluid can be for propane or air etc.；High-grade compresses hot tank and the heat-transfer fluid of low-grade compression hot tank can be with
For conduction oil or air etc..
Specifically, a kind of cold-hot based on liquid air energy storage-electricity supply method that the present invention uses, the method for combined supply
Changed according to electricity consumption paddy peak period and user's different demands, including following operating mode:
When low power consumption period or extra renewable energy, air liquefaction circulating working mode；
Peak of power consumption period, air power generation cycle operating mode；
The additional air heat of compression stored in hot tank 216 is compressed by cascade utilization high-grade, is realized: cold energy supply circulation,
Thermal energy supply circulation and domestic hot-water supply circulation and work at the same time mode；
Cold energy supply circulation and domestic hot-water supply circulation and work at the same time mode；
Thermal energy supply circulation and domestic hot-water supply circulation and work at the same time mode；
Domestic hot-water supplies circulating working mode.
When low power consumption period or extra renewable energy, air liquefaction cycle operation: after surrounding air purification, into sky
Press group is forced into high pressure, while the heat of compression that air compression process generates is stored in the high-grade heat of compression by heat-transfer fluid
Storage tank；The normal temperature high voltage air of air-compressor set outlet enters First Heat Exchanger and is refluxed cold air and middle the second storage tank of grade cold energy
The middle grade cold energy of middle storage is tentatively cooling, is refluxed in cold air and high-grade cold energy storage tank and deposits subsequently into the second heat exchanger
The high-grade cold energy of storage is cooled to low temperature；Cryogenic high pressure air enters the decompression of low temperature turbine expansion, obtains liquid air, and store
In liquid air storage tank；
The peak of power consumption period, the work of air power generation cycle: the low temperature liquid air of liquid air outlet adds by force (forcing) pump
It is depressed into high pressure, high-grade cold energy is discharged into the first evaporator, and store it in high-grade cold energy storage tank, subsequently into second
Grade cold energy in evaporator release, and store it in middle the second storage tank of grade cold energy；The normal temperature high voltage of second evaporator outlet
Air is further heated to high temperature by the partial air heat of compression stored in high-grade compression hot tank, into air turbine unit
Expansion power generation supplies user；
When user needs cooling supply, heat supply and domestic hot-water supply, cold energy supply circulation, thermal energy supply circulation and domestic hot-water's supply
Circulation works at the same time, and the additional air heat of compression stored in high-grade compression hot tank sequentially enters high pressure by heat-transfer fluid
Raw device, low pressure generator, the first water heater and the second water heater step discharge heat: in cold energy supply circulation, refrigerant evaporation
The steam of device outlet is absorbed the absorption of the concentrated solution in device, and solution concentration reduces, and hands over by the pressurization of solution force (forcing) pump and Low Temperature Thermal
Divide two-way after parallel operation preheating: a-road-through crosses high-temperature heat exchanger and enters high pressure generator, and another way passes through the first solution throttle valve
Reducing pressure by regulating flow enters low pressure generator；The temperature refrigerant vapor of high pressure generator outlet enters first by refrigerant reversing valves
Water heater exothermic condensation enters condenser by second refrigerant throttle valve reducing pressure by regulating flow；The medium temperature system of low pressure generator outlet
Refrigerant vapour enters the second water heater exothermic condensation, enters condenser by the 4th refrigerant throttle valve reducing pressure by regulating flow；Condenser
The saturated liquid refrigerant of outlet passes through the first refrigerant throttle valve reducing pressure by regulating flow, obtains into refrigerant evaporator evaporation endothermic
Low temperature chilled water gives user's cooling supply；In thermal energy supply circulation, what circulating hot water was exported in the first water heater by low pressure generator
The temperature refrigerant vapor heating of high temperature heat transfer fluid and high pressure generator outlet, obtains high-temperature-hot-water, gives user's heat supply；Life
In hot water supply circulation, environment cold water is occurred in the second water heater by the heat transfer medium temperature fluid and low pressure of the first outlet of water heater
The medium temperature refrigerant vapour heating of device outlet, obtains domestic hot-water and supplies user；
When user needs cooling supply and domestic hot-water supply, cold energy supply circulation and domestic hot-water supply circulation and work at the same time, Gao Pin
In position compression hot tank the additional air heat of compression that stores by heat-transfer fluid sequentially enter high pressure generator, low pressure generator and
Second water heater step discharges heat: in cold energy supply circulation, the temperature refrigerant vapor of high pressure generator outlet passes through refrigeration
Agent reversal valve enters the second water heater exothermic condensation, enters condenser by third refrigerant throttle valve reducing pressure by regulating flow；Condenser
The saturated liquid refrigerant of outlet passes through the first refrigerant throttle valve reducing pressure by regulating flow, obtains into refrigerant evaporator evaporation endothermic
Low temperature chilled water gives user's cooling supply；Domestic hot-water supplies in circulation, and environment cold water is gone out in the second water heater by low pressure generator
The medium temperature refrigerant of the high temperature heat transfer fluid of mouth, the temperature refrigerant vapor of high pressure generator outlet and low pressure generator outlet steams
Vapour heating obtains domestic hot-water and supplies user；
When user needs heat supply and domestic hot-water supply, thermal energy supply circulation and domestic hot-water supply circulation and work at the same time, Gao Pin
The extra air heat of compression sequentially enters the first water heater and the second water heater step by heat-transfer fluid in position compression hot tank
Discharge heat: in thermal energy supply circulation, circulating hot water is passed in the first water heater by the high temperature of high-grade heat of compression outlet
Hot fluid heats obtain high-temperature-hot-water, give user's heat supply；Domestic hot-water supplies in circulation, and environment cold water is in the second water heater
It is heated by the heat transfer medium temperature fluid of the first outlet of water heater, obtains domestic hot-water and supply user；
When user needs domestic hot-water supply, domestic hot-water supplies cycle operation, and high-grade compresses air extra in hot tank
The heat of compression enters the second water heater heating environment cold water by heat-transfer fluid, obtains domestic hot-water and supplies user.
Further, the additional air heat of compression that stores in hot tank is compressed by cascade utilization high-grade, realize cooling supply,
Heat supply and domestic hot-water supply can effectively improve the utilization efficiency of thermal energy.
Further, the system flexible adjustment between cooling supply, heat supply and domestic hot-water supply different function, it can be achieved that turn
It changes, can satisfy the demand of Various Seasonal user.
Further, using the additional air heat of compression that stores in high-grade compression hot tank, to user's cooling supply, heat supply and
Domestic hot-water supply has no effect on the generated energy of air turbine unit, can significantly improve liquid air energy-storage system efficiency.
Further, for air liquefaction cycle operation in low pressure, system has more additional air heats of compression, has more
Good cooling supply, the ability of heat supply and domestic hot-water supply, this method are conducive to promote liquid air energy-storage system low pressure operation and small
Scale application.
Compared with prior art, beneficial effects of the present invention are as follows:
1) present invention is by rationally using the air heat of compression extra in liquid air energy-storage system, realizing supply of cooling, heating and electrical powers, opening up
The wide function of liquid air energy-storage system, significantly improves liquid air energy-storage system efficiency, generate huge economic benefit and
Social benefit.
2) when the present invention can make liquid air energy-storage system low pressure operation, same system effectiveness with higher, and
Ability with preferable cooling supply, heat supply and domestic hot-water supply helps to widely popularize liquid air energy-storage system and change on a small scale
Using.
3) present invention realizes cooling supply, heat supply and domestic hot-water supply, Ke Yixian by the extra air heat of compression of cascade utilization
Write the utilization efficiency for improving thermal energy.
4) present invention can meet different use with the cooling supply of flexible modulation and converting system, heat supply and domestic hot-water supply function
Energy requirement of the family in Various Seasonal.
5) present invention provides a kind of feasible method and scheme for realization liquid air energy storage supply of cooling, heating and electrical powers.
Detailed description of the invention
Fig. 1 is a kind of cold-hot-chp system structural schematic diagram based on liquid air energy storage of the present invention；
Fig. 2 is a kind of structural representation of the cold-hot based on liquid air energy storage-chp system first embodiment shown in FIG. 1
Figure；
Fig. 3 is the analog result of first embodiment shown in Fig. 2；
Fig. 4 is a kind of structural representation of the cold-hot based on liquid air energy storage-chp system second embodiment shown in FIG. 1
Figure；
Fig. 5 is the analog result of second embodiment shown in Fig. 4；
Fig. 6 is a kind of structural representation of the cold-hot based on liquid air energy storage-chp system 3rd embodiment shown in FIG. 1
Figure；
Fig. 7 is the analog result of 3rd embodiment shown in fig. 6；
Fig. 8 is a kind of structural representation of the cold-hot based on liquid air energy storage-chp system fourth embodiment shown in FIG. 1
Figure；
Fig. 9 is the analog result of fourth embodiment shown in Fig. 8；
Wherein, air-compressor set 100, the first air compressor machine 101, the first cooler 102, the second air compressor machine 103, the second cooler
104, third air compressor machine 105, third cooler 106, First Heat Exchanger 201, the second heat exchanger 202, low temperature turbine 203, liquid
Air reservoir 204, force (forcing) pump 205, the first evaporator 206, the second evaporator 207, third circulating pump 208, the storage of high-grade cold energy
Tank 209, the 4th circulating pump 210, middle the first storage tank of grade cold energy 211, first circulation pump 212, middle the second storage tank of grade cold energy
213, second circulation pump 214, low-grade cold energy storage tank 215, high-grade compression hot tank 216, low-grade compression hot tank 217,
First reversal valve 218, the second reversal valve 219, third reversal valve 220, the 4th reversal valve 221, air turbine unit 300, first
Heater 301, the first air turbine 302, secondary heater 303, the second air turbine 304, third heater 305, third are empty
Gas turbine 306, high pressure generator 401, high-temperature heat exchanger 402, the first solution throttle valve 403, low pressure generator 404, second
Solution throttle valve 405, low temperature heat exchanger 406, third solution throttle valve 407, solution force (forcing) pump 408, absorber 409, refrigeration
Agent evaporator 410, the first refrigerant throttle valve 411, condenser 412, second refrigerant throttle valve 413, the throttling of third refrigerant
Valve 414, the 4th refrigerant throttle valve 415, refrigerant reversing valves 416, the first water heater 417, the second water heater 418, user
419。
Specific embodiment
The present invention will be described below with reference to accompanying drawings.
As shown in Figure 1, a kind of cold-hot-chp system based on liquid air energy storage of the invention, including air liquefaction
Circulation loop, air power generation cycle circuit, cold energy supply circulation loop, thermal energy supply circulation loop and domestic hot-water supply circulation
Circuit.
Wherein, air liquefaction circulation loop includes air-compressor set 100, the first air compressor machine 101, the first cooler 102, second
Air compressor machine 103, the second cooler 104, third air compressor machine 105, third cooler 106, First Heat Exchanger 201, the second heat exchanger
202, low temperature turbine 203, liquid air storage tank 204, third circulating pump 208, high-grade cold energy storage tank 209, middle grade cold energy
One storage tank 211, first circulation pump 212, middle the second storage tank of grade cold energy 213, low-grade cold energy storage tank 215, the high-grade heat of compression
Storage tank 216, low-grade compression hot tank 217.
Specifically, air-compressor set 100 has right side input terminal, left side output end, lower input and lower output side, packet
Containing multiple compressors and cooler；High-grade compresses the upper input of hot tank 216 and the lower output side of air-compressor set 100
Connection；The upper output terminal of low-grade compression hot tank 217 is connect with the lower input of air-compressor set 100；First Heat Exchanger
201 right side input terminal is connect with the left side output end of air-compressor set 100, the upper right side output end and sky of First Heat Exchanger 201
The right side input terminal of press group 100 connects；The output end of first circulation pump 212 and the lower left side input terminal of First Heat Exchanger 201
Connection；The output end of middle the second storage tank of grade cold energy 213 is connect with the input terminal of first circulation pump 212；Low-grade cold energy storage tank
215 input terminal is connect with the lower right side output end of First Heat Exchanger 201；The right side input terminal and first of second heat exchanger 202
The left side output end of heat exchanger 201 connects, and 202 upper right side output end of the second heat exchanger and the upper left side of First Heat Exchanger 201 are defeated
Enter end connection；The output end of third circulating pump 208 is connect with the lower left side input terminal of the second heat exchanger 202；The storage of high-grade cold energy
The output end of tank 209 is connect with the input terminal of third circulating pump 208；The input terminal and second of middle the first storage tank of grade cold energy 211
The lower right side output end of heat exchanger 202 connects；The left side output end of the input terminal of low temperature turbine 203 and the second heat exchanger 202 connects
It connects；The upper input of liquid air storage tank 204 is connect with the output end of low temperature turbine 203, the top of liquid air storage tank 204
Output end is connect with the upper left side input terminal of the second heat exchanger 202.
Air power generation cycle circuit and air liquefaction circulation loop share liquid air storage tank 204, high-grade cold energy storage tank
209, middle the first storage tank of grade cold energy 211, middle the second storage tank of grade cold energy 213, low-grade cold energy storage tank 215, high-grade compression
Hot tank 216 and low-grade compression hot tank 217, further includes: force (forcing) pump 205, the second evaporator 207, the 4th circulating pump 210,
Second circulation pump 214, air turbine unit 300, primary heater 301, the first air turbine 302, secondary heater 303,
Second air turbine 304, third heater 305, third air turbine 306, user 419.
Specifically, the input terminal of force (forcing) pump 205 is connect with the right side output end of liquid air storage tank 204；First evaporator
206 lower left side input terminal is connect with the output end of force (forcing) pump 205, the upper left side output end and high-grade of the first evaporator 206
The input terminal of cold energy storage tank 209 connects；The upper right side input terminal of the output end of 4th circulating pump 210 and the first evaporator 206 connects
It connects, the input terminal of the 4th circulating pump 210 is connect with the output end of middle the first storage tank of grade cold energy 211；A left side for second evaporator 207
Downside input terminal is connect with the lower right side output end of the first evaporator 206, the upper left side output end and middle product of the second evaporator 207
The input terminal connection of position the second storage tank of cold energy 213；The upper right side of the output end and the second evaporator 207 of second circulation pump 214 is defeated
Enter end connection, the input terminal of second circulation pump 214 is connect with the output end of low-grade cold energy storage tank 215；Air turbine unit 300
Left side input terminal connect with the lower right side output end of the second evaporator 207, the upper input of air turbine unit 300 and high
Grade compresses the lower output side connection of hot tank 216, and the upper output terminal of air turbine unit 300 and the low-grade heat of compression are stored up
The lower input of tank 217 connects；The energization input of user 419 is connect with the motor output end of air turbine unit 300.
Cold energy supplies circulation loop and air power generation cycle circuit shares high-grade compression hot tank 216 and user 419, cold
Circulation loop can be supplied further include: the first reversal valve 218, third reversal valve 220, high pressure generator 401, high-temperature heat exchanger
402, the first solution throttle valve 403, low pressure generator 404, the second solution throttle valve 405, low temperature heat exchanger 406, third are molten
Liquid throttle valve 407, solution force (forcing) pump 408, absorber 409, refrigerant evaporator 410, the first refrigerant throttle valve 411, condensation
Device 412, second refrigerant throttle valve 413, third refrigerant throttle valve 414, the 4th refrigerant throttle valve 415, refrigerant commutation
Valve 416.
Specifically, the lower output side of the upper input of the first reversal valve 218 and high-grade compression hot tank 216 connects
It connects；The right side input terminal of high pressure generator 401 is connect with the left side output end of the first reversal valve 218；High-temperature heat exchanger 402
Upper input is connect with the lower output side of high pressure generator 401, the upper output terminal of high-temperature heat exchanger 402 and high pressure
The lower input connection of raw device 401；The input terminal of second solution throttle valve 405 and the lower part of high-temperature heat exchanger 402 export
End connection；The right side input terminal of low temperature heat exchanger 406 is connect with the output end of the second solution throttle valve 405, low temperature heat exchange
The right side output end of device 406 is connect with the lower input of high-temperature heat exchanger 402；The top of first solution throttle valve 403 is defeated
Enter end to connect with the right side output end of low temperature heat exchanger 406；The upper input of low pressure generator 404 and the first solution throttle
The lower output side of valve 403 connects, and the upper right side input terminal of low pressure generator 404 and the lower right side of high pressure generator 401 export
End connection, the lower output side of the low pressure generator 404 are connect with the right side input terminal of low temperature heat exchanger 406；Third is changed
The lower right side output end of upper input and low pressure generator 404 to valve 220 is connect；Third solution throttle valve (407 right side
Input terminal is connect with the upper left side output end of low temperature heat exchanger 406；The output end and low temperature heat exchanger of solution force (forcing) pump 408
406 lower left side input terminal connection；The upper input of absorber 409 is connect with the output end of third solution throttle valve 407, is inhaled
The upper output terminal for receiving device 409 is connect with the input terminal of solution force (forcing) pump 408；The right side output end of refrigerant evaporator 410 with
The left side input terminal of absorber 409 connects, and the left side output end of refrigerant evaporator 410 and the cooling supply input terminal of user 419 connect
It connects, the left side input terminal of refrigerant evaporator 410 is connect with the cooling supply output end of user 419；First refrigerant throttle valve 411
Lower output side is connect with the upper input of refrigerant evaporator 410；The lower output side of condenser 412 and the first refrigerant
The upper input of throttle valve 411 connects；The output end of second refrigerant throttle valve 413 and the upper input of condenser 412
Connection；The output end of third refrigerant throttle valve 414 is connect with the upper input of condenser 412；4th refrigerant throttle valve
415 output end is connect with the upper input of condenser 412；The upper input and high pressure of refrigerant reversing valves 416 occur
The upper output terminal of device 401 connects.
Thermal energy supplies circulation loop and cold energy supply circulation loop shares the first reversal valve 218, third reversal valve 220, the
Two refrigerant throttle valves 413, refrigerant reversing valves 416 and user 419, further includes: the second reversal valve 219, the 4th reversal valve
221, the first water heater 417.
Specifically, the upper input of the second reversal valve 219 is connect with the lower output side of the first reversal valve 218, and second
The left side output end of reversal valve 219 is connect with the right side input terminal of third reversal valve 220；The left side of first water heater 417 inputs
End is connect with the right side output end of refrigerant reversing valves 416, and the left side output end and second refrigerant of the first water heater 417 throttle
The input terminal of valve 413 connects, and the right side input terminal of the first water heater 417 is connect with the left side output end of third reversal valve 220, the
The upper output terminal of one water heater 417 is connect with the heat supply input terminal of user 419, the lower input of the first water heater 417 with
User's 419 connects for hot output terminal；The lower output side of the right side input terminal of 4th reversal valve 221 and the second reversal valve 219
Connection, the upper input of the 4th reversal valve 221 are connect with the right side output end of the first water heater 417.
Domestic hot-water supplies circulation loop and thermal energy supply circulation loop shares the 4th reversal valve 221, refrigerant reversing valves
416 and user 419, low-grade compression hot tank 217 is shared with air power generation cycle circuit, is shared with cold energy supply circulation loop
Low pressure generator 404, third refrigerant throttle valve 414 and the 4th refrigerant throttle valve 415, further includes: the second water heater 418；
Specifically, the upper left side input terminal of the second water heater 418 is connect with the lower output side of refrigerant reversing valves 416, and second
The upper left side output end of water heater 418 is connect with the input terminal of third refrigerant throttle valve 414, the lower-left of the second water heater 418
Side input terminal is connect with the upper output terminal of low pressure generator 404, the lower left side output end of the second water heater 418 and the 4th refrigeration
The input terminal of agent throttle valve 415 connects, the right side input terminal of the second water heater 418 and the left side output end of the 4th reversal valve 221
Connection, the right side output end of the second water heater 418 are connect with the input terminal of low-grade compression hot tank 217, the second water heater 418
Upper output terminal connect with the domestic hot-water supply input terminal of user 419, the lower input of the second water heater 418 and cold water connect
It connects.
A kind of cold-hot based on liquid air energy storage-electricity supply method of the invention, including following operating mode:
When low power consumption period or extra renewable energy, air liquefaction cycle operation: after surrounding air purification, into air compressor machine
Group 100 is forced into high pressure, while the heat of compression that air compression process generates is stored in the high-grade heat of compression by heat-transfer fluid
Storage tank 216；The normal temperature high voltage air that air-compressor set 100 exports enters that First Heat Exchanger 201 is refluxed cold air and middle grade is cold
The middle grade cold energy stored in the second storage tank 213 of energy is tentatively cooling, is refluxed cold air and height subsequently into the second heat exchanger 202
The high-grade cold energy stored in grade cold energy storage tank 209 is cooled to low temperature；Cryogenic high pressure air enters the expansion drop of low temperature turbine 203
Pressure obtains liquid air, and is stored in liquid air storage tank 204；
The peak of power consumption period, the work of air power generation cycle: the low temperature liquid air that liquid air storage tank 204 exports passes through force (forcing) pump
205 are forced into high pressure, discharge high-grade cold energy into the first evaporator 206, and store it in high-grade cold energy storage tank 209,
Subsequently into grade cold energy in the release of the second evaporator 207, and store it in middle the second storage tank of grade cold energy 213；Second steams
The normal temperature high voltage air that hair device 207 exports further is added by the partial air heat of compression stored in high-grade compression hot tank 216
Heat supplies user 419 to high temperature into 300 expansion power generation of air turbine unit；
When user 419 needs cooling supply, heat supply and domestic hot-water supply, cold energy supply circulation, thermal energy supply circulation and domestic hot-water
Supply circulation works at the same time, in high-grade compression hot tank 216 the additional air heat of compression that stores by heat-transfer fluid successively into
Enter high pressure generator 401, low pressure generator 404, the first water heater 417 and 418 step of the second water heater release heat: cold energy supplies
To in circulation, the steam that refrigerant evaporator 410 exports is absorbed the absorption of the concentrated solution in device 409, and solution concentration reduces, and passes through
The pressurization of solution force (forcing) pump 408 and low temperature heat exchanger 406 divide two-way after preheating: a-road-through crosses high-temperature heat exchanger 402 and enters height
Generator 401 is pressed, another way enters low pressure generator 404 by 403 reducing pressure by regulating flow of the first solution throttle valve；High pressure generator
The temperature refrigerant vapor of 401 outlets enters 417 exothermic condensation of the first water heater by refrigerant reversing valves 416, by second
413 reducing pressure by regulating flow of refrigerant throttle valve enters condenser 412；The medium temperature refrigerant vapour that low pressure generator 404 exports enters the
Two water heaters, 418 exothermic condensation enters condenser 412 by 415 reducing pressure by regulating flow of the 4th refrigerant throttle valve；Condenser 412 goes out
The saturated liquid refrigerant of mouth passes through 411 reducing pressure by regulating flow of the first refrigerant throttle valve, into 410 evaporation endothermic of refrigerant evaporator
Low temperature chilled water is obtained, 419 cooling supply of user is given；In thermal energy supply circulation, circulating hot water is sent out in the first water heater 417 by low pressure
The temperature refrigerant vapor heating that the high temperature heat transfer fluid and high pressure generator 401 that raw device 404 exports export, obtains high warm
Water gives 419 heat supply of user；Domestic hot-water supplies in circulation, and environment cold water is in the second water heater 418 by the first water heater 417
The medium temperature refrigerant vapour heating of heat transfer medium temperature fluid and low pressure generator 404 outlet of outlet, obtains domestic hot-water and supplies use
Family 419；
When user 419 needs cooling supply and domestic hot-water supply, cold energy supply circulation and domestic hot-water supply circulation and work at the same time, high
The additional air heat of compression stored in grade compression hot tank 216 sequentially enters high pressure generator 401, low pressure by heat-transfer fluid
Generator 404 and 418 step of the second water heater discharge heat: in cold energy supply circulation, the high temperature system of the outlet of high pressure generator 401
Refrigerant vapour enters 418 exothermic condensation of the second water heater by refrigerant reversing valves 416, by third refrigerant throttle valve 414
Reducing pressure by regulating flow enters condenser 412；The saturated liquid refrigerant that condenser 412 exports passes through 411 section of the first refrigerant throttle valve
Stream decompression obtains low temperature chilled water into 410 evaporation endothermic of refrigerant evaporator, gives 419 cooling supply of user；Domestic hot-water's supply follows
In ring, high temperature heat transfer fluid that environment cold water is exported in the second water heater 418 by low pressure generator 404, high pressure generator 401
The medium temperature refrigerant vapour heating of temperature refrigerant vapor and low pressure generator 404 outlet of outlet, obtains domestic hot-water's supply
User 419；
When user 419 needs heat supply and domestic hot-water supply, thermal energy supply circulation and domestic hot-water supply circulation and work at the same time, high
The extra air heat of compression sequentially enters the first water heater 417 and the second heat by heat-transfer fluid in grade compression hot tank 216
418 step of hydrophone discharges heat: in thermal energy supply circulation, circulating hot water is stored up in the first water heater 417 by the high-grade heat of compression
The high temperature heat transfer fluid heating that tank 216 exports, obtains high-temperature-hot-water, gives 419 heat supply of user；Domestic hot-water supplies in circulation, ring
The heat transfer medium temperature fluid that border cold water is exported in the second water heater 418 by the first water heater 417 heats, and obtains domestic hot-water's supply
User 419；
When user 419 needs domestic hot-water supply, domestic hot-water supplies cycle operation, and high-grade is compressed extra in hot tank 216
The air heat of compression by heat-transfer fluid enter 418 heating environment cold water of the second water heater, obtain domestic hot-water supply user
419。
Fig. 2 is a kind of cold-hot-chp system first embodiment based on liquid air energy storage shown in FIG. 1, cold
Energy supply recycles, thermal energy supply circulation and domestic hot-water's supply circulation work at the same time, for 419 cooling supply of user, heat supply and for life
Hot water；The additional air heat of compression stored in high-grade compression hot tank 216 sequentially enters high pressure generator by heat-transfer fluid
401, low pressure generator 404, the first water heater 417 and 418 step of the second water heater discharge heat: in cold energy supply circulation, system
The steam that cryogen evaporator 410 exports is absorbed the absorption of the concentrated solution in device 409, and solution concentration reduces, by solution force (forcing) pump
408 pressurizations and low temperature heat exchanger 406 divide two-way after preheating: a-road-through crosses high-temperature heat exchanger 402 into high pressure generator
401, another way enters low pressure generator 404 by 403 reducing pressure by regulating flow of the first solution throttle valve；What high pressure generator 401 exported
Temperature refrigerant vapor enters 417 exothermic condensation of the first water heater by refrigerant reversing valves 416, throttles by second refrigerant
413 reducing pressure by regulating flow of valve enters condenser 412；The medium temperature refrigerant vapour that low pressure generator 404 exports enters the second water heater 418
Exothermic condensation enters condenser 412 by 415 reducing pressure by regulating flow of the 4th refrigerant throttle valve；The saturated liquid that condenser 412 exports
Refrigerant passes through 411 reducing pressure by regulating flow of the first refrigerant throttle valve, obtains cryogenic freezing into 410 evaporation endothermic of refrigerant evaporator
Water gives 419 cooling supply of user；In thermal energy supply circulation, circulating hot water is exported in the first water heater 417 by low pressure generator 404
High temperature heat transfer fluid and high pressure generator 401 export temperature refrigerant vapor heating, obtain high-temperature-hot-water, give user 419
Heat supply；Domestic hot-water supplies in circulation, and the medium temperature that environment cold water is exported in the second water heater 418 by the first water heater 417 passes
The medium temperature refrigerant vapour heating that hot fluid and low pressure generator 404 export, obtains domestic hot-water and supplies user 419；
First embodiment in order to further illustrate the present invention, be simulated calculating to Fig. 2: air liquefaction recycles power consumption 1
MW, air liquefaction cycle operation pressure 1-21 MPa, 12 MPa of air power generation cycle operating pressure；Calculated result as shown in figure 3,
System (1-5 MPa) power supply capacity under low pressure operating condition is weaker, but the energy with very high cooling supply, heat supply and domestic hot-water supply
Power；When air liquefaction pressure is 1 MPa, system has highest cogeneration efficiency 1.2.
Fig. 4 is a kind of cold-hot-chp system second embodiment based on liquid air energy storage shown in FIG. 1, cold
Circulation can be supplied and domestic hot-water supplies circulation and works at the same time, for 419 cooling supply of user and domestic hot-water supply；The storage of the high-grade heat of compression
The additional air heat of compression stored in tank 216 sequentially enters high pressure generator 401,404 and of low pressure generator by heat-transfer fluid
Second water heater, 418 step discharge heat: cold energy supply circulation in, high pressure generator 401 export temperature refrigerant vapor into
Enter 418 exothermic condensation of the second water heater, enters condenser 412 by 414 reducing pressure by regulating flow of third refrigerant throttle valve；Condenser
The saturated liquid refrigerant of 412 outlets passes through 411 reducing pressure by regulating flow of the first refrigerant throttle valve, steams into refrigerant evaporator 410
Hair heat absorption obtains low temperature chilled water, gives 419 cooling supply of user；Domestic hot-water supplies in circulation, and environment cold water is in the second water heater 418
Temperature refrigerant vapor and the low pressure hair that the middle high temperature heat transfer fluid exported by low pressure generator 404, high pressure generator 401 export
The medium temperature refrigerant vapour heating that raw device 404 exports, obtains domestic hot-water and supplies user 419；
Second embodiment in order to further illustrate the present invention, be simulated calculating to Fig. 4: air liquefaction recycles power consumption 1
MW, air liquefaction cycle operation pressure 1-21 MPa, 12 MPa of air power generation cycle operating pressure；Calculated result as shown in figure 5,
System (1-5 MPa) power supply capacity under low pressure operating condition is weaker, but the ability of cooling supply with higher and domestic hot-water supply；Air
When liquefaction pressure is 1 MPa, system has highest cogeneration efficiency 1.2.
Fig. 6 is a kind of cold-hot-chp system 3rd embodiment based on liquid air energy storage shown in FIG. 1, thermal energy
Supply circulation and domestic hot-water supply circulation and work at the same time, and are 419 heat supply of user and domestic hot-water supply；High-grade compresses hot tank
The extra air heat of compression sequentially enters the first water heater 417 by heat-transfer fluid in 216 and 418 step of the second water heater discharges
Heat: in thermal energy supply circulation, circulating hot water compresses the high temperature that hot tank 216 exports by high-grade in the first water heater 417
Heat-transfer fluid heating, obtains high-temperature-hot-water, gives 419 heat supply of user；Domestic hot-water supplies in circulation, and environment cold water is in the second hot water
The heat transfer medium temperature fluid exported in device 418 by the first water heater 417 heats, and obtains domestic hot-water and supplies user 419；
3rd embodiment in order to further illustrate the present invention, be simulated calculating to Fig. 6: air liquefaction recycles power consumption 1
MW, air liquefaction cycle operation pressure 1-21 MPa, 12 MPa of air power generation cycle operating pressure；Calculated result as shown in fig. 7,
System (1-5 MPa) power supply capacity under low pressure operating condition is weaker, but the ability of heat supply with higher and domestic hot-water supply；Air
When liquefaction pressure is 1 MPa, system has highest cogeneration efficiency about 1.07.
Fig. 8 is a kind of cold-hot-chp system fourth embodiment based on liquid air energy storage shown in FIG. 1, raw
Hot water supply cycle operation living is 419 domestic hot-water supply of user；High-grade compresses the air heat of compression extra in hot tank 216
Enter 418 heating environment cold water of the second water heater by heat-transfer fluid, obtains domestic hot-water and supply user 419；
Fourth embodiment in order to further illustrate the present invention, be simulated calculating to Fig. 8: air liquefaction recycles power consumption 1
MW, air liquefaction cycle operation pressure 1-21 MPa, 12 MPa of air power generation cycle operating pressure；Calculated result as shown in figure 9,
System (1-5 MPa) power supply capacity under low pressure operating condition is weaker, but the ability of domestic hot-water supply with higher；Air liquefaction pressure
When power is 1 MPa, system has highest cogeneration efficiency about 1.07.
The foregoing is merely better embodiment of the invention, protection scope of the present invention is not with above embodiment
Limit, as long as those of ordinary skill in the art's equivalent modification or variation made by disclosure according to the present invention, should all be included in power
In the protection scope recorded in sharp claim.
Claims (9)
1. a kind of cold-hot-chp system based on liquid air energy storage, which is characterized in that the system includes that air liquefaction follows
Loop back path, air power generation cycle circuit, cold energy supply circulation loop, thermal energy supply circulation loop and domestic hot-water's supply are recycled back to
Road, in which:
The air liquefaction circulation loop includes:
Air-compressor set (100), the air-compressor set (100) have right side input terminal, left side output end, lower input and lower part
Output end；
High-grade compresses hot tank (216), the upper input and the air-compressor set of high-grade compression hot tank (216)
(100) lower output side connection；
Low-grade compression hot tank (217), the upper output terminal and the air-compressor set of low-grade compression hot tank (217)
(100) lower input connection；
First Heat Exchanger (201), the right side input terminal of the First Heat Exchanger (201) and the left side of the air-compressor set (100)
Output end connection；The upper right side output end of the First Heat Exchanger (201) and the right side input terminal of the air-compressor set (100) connect
It connects；
First circulation pumps (212), the output end of the first circulation pump (212) and the lower left side of the First Heat Exchanger (201)
Input terminal connection；
Middle the second storage tank of grade cold energy (213), the output end of middle second storage tank of grade cold energy (213) and the first circulation
Pump the input terminal connection of (212)；
Low-grade cold energy storage tank (215), input terminal and the First Heat Exchanger (201) of the low-grade cold energy storage tank (215)
Lower right side output end connection；
Second heat exchanger (202), the right side input terminal of second heat exchanger (202) and the left side of the First Heat Exchanger (201)
The connection of side output end；The upper left side of second heat exchanger (202) the upper right side output end and the First Heat Exchanger (201) inputs
End connection；
Third circulating pump (208), the lower left side of the output end of the third circulating pump (208) and second heat exchanger (202)
Input terminal connection；
High-grade cold energy storage tank (209), the output end of the high-grade cold energy storage tank (209) and the third circulating pump (208)
Input terminal connection；
Middle the first storage tank of grade cold energy (211), the input terminal of middle first storage tank of grade cold energy (211) and second heat exchange
The lower right side output end of device (202) connects；
Low temperature turbine (203), the left side output end of the input terminal of the low temperature turbine (203) and second heat exchanger (202)
Connection；
Liquid air storage tank (204), the upper input of the liquid air storage tank (204) and the low temperature turbine (203)
Output end connection；The upper left side of the upper output terminal of the liquid air storage tank (204) and second heat exchanger (202) inputs
End connection；
Air power generation cycle circuit and air liquefaction circulation loop share liquid air storage tank (204), high-grade cold energy stores up
Tank (209), middle the first storage tank of grade cold energy (211), middle the second storage tank of grade cold energy (213), low-grade cold energy storage tank (215),
High-grade compresses hot tank (216) and low-grade compression hot tank (217)；
Air power generation cycle circuit further include:
The right side output end of force (forcing) pump (205), the input terminal of the force (forcing) pump (205) and the liquid air storage tank (204) connects
It connects；First evaporator (206), the lower left side input terminal of first evaporator (206) and the output end of the force (forcing) pump (205)
Connection；The upper left side output end of first evaporator (206) is connect with the input terminal of the high-grade cold energy storage tank (209)；
4th circulating pump (210), the upper right side of the output end of the 4th circulating pump (210) and first evaporator (206)
Input terminal connection；The input terminal of 4th circulating pump (210) and the output end of middle first storage tank of grade cold energy (211) connect
It connects；
Second evaporator (207), the lower left side input terminal of second evaporator (207) and first evaporator (206)
The connection of lower right side output end；The upper left side output end of second evaporator (207) and middle second storage tank of grade cold energy
(213) input terminal connection；
Second circulation pumps (214), the output end of the second circulation pump (214) and the upper right side of second evaporator (207)
Input terminal connection；The input terminal of the second circulation pump (214) is connect with the output end of the low-grade cold energy storage tank (215)；
Air turbine unit (300), the left side input terminal of the air turbine unit (300) and second evaporator (207)
Lower right side output end connection；The upper input of the air turbine unit (300) and the high-grade compress hot tank
(216) lower output side connection；The upper output terminal of the air turbine unit (300) and the low-grade compression hot tank
(217) lower input connection；
The motor output end of user (419), the energization input of the user (419) and the air turbine unit (300) connects
It connects；
The cold energy supply circulation loop and air power generation cycle circuit share high-grade compression hot tank (216) and user
(419), the cold energy supplies circulation loop further include:
First reversal valve (218), the upper input of first reversal valve (218) and the high-grade compress hot tank
(216) lower output side connection；
High pressure generator (401), a left side for the right side input terminal of the high pressure generator (401) and first reversal valve (218)
The connection of side output end；
High-temperature heat exchanger (402), upper input and the high pressure generator (401) of the high-temperature heat exchanger (402)
Lower output side connection；The upper output terminal of the high-temperature heat exchanger (402) and the lower part of the high pressure generator (401)
Input terminal connection；
Second solution throttle valve (405), the input terminal and the high-temperature heat exchanger of the second solution throttle valve (405)
(402) lower output side connection；
Low temperature heat exchanger (406), the right side input terminal and the second solution throttle valve of the low temperature heat exchanger (406)
(405) output end connection；The right side output end of the low temperature heat exchanger (406) and the high-temperature heat exchanger (402)
Lower input connection；
First solution throttle valve (403), the upper input and the low temperature heat exchanger of the first solution throttle valve (403)
(406) right side output end connection；
Low pressure generator (404), the upper input of the low pressure generator (404) and the first solution throttle valve (403)
Lower output side connection；The upper right side input terminal of the low pressure generator (404) and the bottom right of the high pressure generator (401)
The connection of side output end；The lower output side of the low pressure generator (404) and the right side of the low temperature heat exchanger (406) input
End connection；
Third reversal valve (220), the upper input of the third reversal valve (220) and the right side of the low pressure generator (404)
Lower side output terminal connection；
Third solution throttle valve (407), the right side input terminal and the low temperature heat exchanger of the third solution throttle valve (407)
(406) upper left side output end connection；
Solution force (forcing) pump (408), the output end of the solution force (forcing) pump (408) and the lower-left of the low temperature heat exchanger (406)
The connection of side input terminal；
Absorber (409), the output end of the upper input of the absorber (409) and the third solution throttle valve (407)
Connection；The upper output terminal of the absorber (409) is connect with the input terminal of the solution force (forcing) pump (408)；
Refrigerant evaporator (410), the right side output end of the refrigerant evaporator (410) and the left side of the absorber (409)
The connection of side input terminal；The left side output end of the refrigerant evaporator (410) and the cooling supply input terminal of the user (419) connect
It connects；The left side input terminal of the refrigerant evaporator (410) is connect with the cooling supply output end of the user (419)；
First refrigerant throttle valve (411), the lower output side and the refrigerant of the first refrigerant throttle valve (411) steam
Send out the upper input connection of device (410)；
Condenser (412), the top of the lower output side of the condenser (412) and the first refrigerant throttle valve (411)
Input terminal connection；
Second refrigerant throttle valve (413), output end and the condenser (412) of the second refrigerant throttle valve (413)
Upper input connection；
Third refrigerant throttle valve (414), output end and the condenser (412) of the third refrigerant throttle valve (414)
Upper input connection；
4th refrigerant throttle valve (415), output end and the condenser (412) of the 4th refrigerant throttle valve (415)
Upper input connection；
Refrigerant reversing valves (416), upper input and the high pressure generator (401) of the refrigerant reversing valves (416)
Upper output terminal connection；
The thermal energy supply circulation loop and cold energy supply circulation loop share the first reversal valve (218), third reversal valve
(220), second refrigerant throttle valve (413), refrigerant reversing valves (416) and user (419), the thermal energy supply circulation loop
Further include:
Under second reversal valve (219), the upper input of second reversal valve (219) and first reversal valve (218)
The connection of portion's output end；The right side input terminal of the left side output end of second reversal valve (219) and the third reversal valve (220)
Connection；
First water heater (417), left side input terminal and the refrigerant reversing valves (416) of first water heater (417)
The connection of right side output end；The left side output end of first water heater (417) is defeated with the second refrigerant throttle valve (413)
Enter end connection；The right side input terminal of first water heater (417) and the left side output end of the third reversal valve (220) connect
It connects；The upper output terminal of first water heater (417) is connect with the heat supply input terminal of the user (419)；First heat
The lower input of hydrophone (417) is connect with the user's (419) for hot output terminal；
Under 4th reversal valve (221), the right side input terminal of the 4th reversal valve (221) and second reversal valve (219)
The connection of portion's output end；The right side output end of the upper input of 4th reversal valve (221) and first water heater (417)
Connection；
The domestic hot-water supplies circulation loop and thermal energy supply circulation loop shares the 4th reversal valve (221), refrigerant commutates
Valve (416) and user (419) share low-grade compression hot tank (217) with air power generation cycle circuit, supply and recycle with cold energy
Circuit shares low pressure generator (404), third refrigerant throttle valve (414) and the 4th refrigerant throttle valve (415), further includes:
Second water heater (418), upper left side input terminal and the refrigerant reversing valves (416) of second water heater (418)
Lower output side connection；The upper left side output end of second water heater (418) and the third refrigerant throttle valve (414)
Input terminal connection；The lower left side input terminal of second water heater (418) and the top of the low pressure generator (404) export
End connection；The lower left side output end of second water heater (418) and the input terminal of the 4th refrigerant throttle valve (415) connect
It connects；The right side input terminal of second water heater (418) is connect with the left side output end of the 4th reversal valve (221)；It is described
The right side output end of second water heater (418) is connect with the input terminal of low-grade compression hot tank (217)；Second heat
The upper output terminal of hydrophone (418) is connect with the domestic hot-water supply input terminal of the user (419)；Second water heater
(418) lower input is connect with cold water.
2. a kind of cold-hot-chp system based on liquid air energy storage according to claim 1, which is characterized in that institute
Stating air-compressor set (100) includes one or more air compressor machines and interstage cooler；The air turbine unit (300) includes one
Or heater and air turbine between multiple grades.
3. a kind of cold-hot-chp system based on liquid air energy storage according to claim 1 or 2, feature exist
In air liquefaction circulation uses air or nitrogen working medium；Middle the second storage tank of grade cold energy (213) and low-grade cold energy storage tank
(215) heat-transfer fluid is methanol or air；The biography of high-grade cold energy storage tank (209) and middle the first storage tank of grade cold energy (211)
Hot fluid is propane or air；The heat-transfer fluid of high-grade compression hot tank (216) and low-grade compression hot tank (217) is to lead
Hot oil or air.
4. a kind of cold-hot based on liquid air energy storage-electricity supply method as claimed any one in claims 1 to 3, special
Sign is that the method for combined supply changes according to electricity consumption paddy peak period and user's (419) different demands, including following operating mode:
When low power consumption period or extra renewable energy, air liquefaction circulating working mode；
Peak of power consumption period, air power generation cycle operating mode；
By the additional air heat of compression stored in cascade utilization high-grade compression hot tank (216), realize: cold energy supply follows
Ring, thermal energy supply circulation and domestic hot-water supply circulation and work at the same time mode；
Cold energy supply circulation and domestic hot-water supply circulation and work at the same time mode；
Thermal energy supply circulation and domestic hot-water supply circulation and work at the same time mode；
Domestic hot-water supplies circulating working mode.
5. a kind of cold-hot based on liquid air energy storage-electricity supply method according to claim 4, which is characterized in that
When low power consumption period or extra renewable energy, using air liquefaction circulating working mode: after surrounding air purification, into
Enter air-compressor set (100) and be forced into high pressure, while the heat of compression that air compression process generates is stored in height by heat-transfer fluid
Grade compresses hot tank (216)；The normal temperature high voltage air of air-compressor set (100) outlet enters First Heat Exchanger (201) and is refluxed
The middle grade cold energy stored in cold air and middle the second storage tank of grade cold energy (213) is tentatively cooling, subsequently into the second heat exchanger
(202) it is refluxed the high-grade cold energy stored in cold air and high-grade cold energy storage tank (209) and is cooled to low temperature；Cryogenic high pressure is empty
Gas enters low temperature turbine (203) expansion decompression, obtains liquid air, and be stored in liquid air storage tank (204)；Not liquefaction portion
The cool air reflux divided, successively returns to air-compressor set entrance through the second heat exchanger (202) and First Heat Exchanger (201)；
The peak of power consumption period, the work of air power generation cycle: the low temperature liquid air of liquid air storage tank (204) outlet is through being overpressurized
Pump (205) is forced into high pressure, discharges high-grade cold energy into the first evaporator (206), and stores it in the storage of high-grade cold energy
Tank (209) subsequently into grade cold energy in the second evaporator (207) release, and stores it in middle the second storage tank of grade cold energy
(213)；What the normal temperature high voltage air of the second evaporator (207) outlet was further stored in high-grade compression hot tank (216)
The partial air heat of compression is heated to high temperature, into air turbine unit (300) expansion power generation, supplies user (419).
6. a kind of cold-hot based on liquid air energy storage-electricity supply method according to claim 4, which is characterized in that when
When user (419) needs cooling supply, heat supply and domestic hot-water supply, cold energy supply circulation, thermal energy supply circulation and domestic hot-water's supply
Circulation works at the same time, and the additional air heat of compression stored in high-grade compression hot tank (216) is sequentially entered by heat-transfer fluid
High pressure generator (401), low pressure generator (404), the first water heater (417) and the second water heater (418) step discharge heat:
In cold energy supply circulation, the steam of refrigerant evaporator (410) outlet is absorbed the absorption of the concentrated solution in device (409), molten
Liquid concentration reduces, and divide two-way after solution force (forcing) pump (408) pressurization and low temperature heat exchanger (406) preheating: a-road-through is excessively high
Temperature heat exchanger (402) enters high pressure generator (401), and another way is entered by the first solution throttle valve (403) reducing pressure by regulating flow
Low pressure generator (404)；The temperature refrigerant vapor of high pressure generator (401) outlet is entered by refrigerant reversing valves (416)
First water heater (417) exothermic condensation enters condenser (412) by second refrigerant throttle valve (413) reducing pressure by regulating flow；Low pressure
The medium temperature refrigerant vapour of generator (404) outlet enters the second water heater (418) exothermic condensation, throttles by the 4th refrigerant
Valve (415) reducing pressure by regulating flow enters condenser (412)；The saturated liquid refrigerant of condenser (412) outlet passes through the first refrigerant
Throttle valve (411) reducing pressure by regulating flow obtains low temperature chilled water into refrigerant evaporator (410) evaporation endothermic, supplies to user (419)
It is cold；
In thermal energy supply circulation, circulating hot water is in the first water heater (417) by the high temperature heat transfer of low pressure generator (404) outlet
The temperature refrigerant vapor heating of fluid and high pressure generator (401) outlet, obtains high-temperature-hot-water, gives user (419) heat supply；
Domestic hot-water supplies in circulation, the medium temperature that environment cold water is exported in the second water heater (418) by the first water heater (417)
The medium temperature refrigerant vapour heating of heat-transfer fluid and low pressure generator (404) outlet, obtains domestic hot-water and supplies user (419)；
When user (419) needs cooling supply and domestic hot-water supply, cold energy supply circulation and domestic hot-water supply circulation and work at the same time,
The additional air heat of compression stored in high-grade compression hot tank (216) sequentially enters high pressure generator by heat-transfer fluid
(401), low pressure generator (404) and the second water heater (418) step discharge heat:
Cold energy supply circulation in, high pressure generator (401) outlet temperature refrigerant vapor by refrigerant reversing valves (416) into
Enter the second water heater (418) exothermic condensation, enters condenser (412) by third refrigerant throttle valve (414) reducing pressure by regulating flow；It is cold
The saturated liquid refrigerant of condenser (412) outlet passes through first refrigerant throttle valve (411) reducing pressure by regulating flow, evaporates into refrigerant
Device (410) evaporation endothermic obtains low temperature chilled water, gives user (419) cooling supply；
Domestic hot-water supplies in circulation, the high temperature that environment cold water is exported in the second water heater (418) by low pressure generator (404)
The medium temperature refrigerant of heat-transfer fluid, the temperature refrigerant vapor of high pressure generator (401) outlet and low pressure generator (404) outlet
Steam heating obtains domestic hot-water and supplies user (419)；
When user (419) needs heat supply and domestic hot-water supply, thermal energy supply circulation and domestic hot-water supply circulation and work at the same time,
In high-grade compression hot tank (216) the extra air heat of compression by heat-transfer fluid sequentially enter the first water heater (417) and
Second water heater (418) step discharges heat:
In thermal energy supply circulation, circulating hot water is in the first water heater (417) by the height of high-grade compression hot tank (216) outlet
Warm heat-transfer fluid heating, obtains high-temperature-hot-water, gives user (419) heat supply；
Domestic hot-water supplies in circulation, the medium temperature that environment cold water is exported in the second water heater (418) by the first water heater (417)
Heat-transfer fluid heating obtains domestic hot-water and supplies user (419)；
When user (419) needs domestic hot-water supply, domestic hot-water supplies cycle operation, and high-grade is compressed in hot tank (216)
The extra air heat of compression enters the second water heater (418) heating environment cold water by heat-transfer fluid, obtains domestic hot-water's supply
User (419).
7. a kind of cold-hot based on liquid air energy storage-electricity supply method according to claim 4, which is characterized in that be
Flexible adjustment unite, it can be achieved that conversion between cooling supply, heat supply and domestic hot-water supply different function, can satisfy Various Seasonal user
(419) demand.
8. a kind of cold-hot based on liquid air energy storage-electricity supply method according to claim 4, which is characterized in that benefit
The additional air heat of compression stored in hot tank (216) is compressed with high-grade, to user's cooling supply, heat supply and domestic hot-water supply, and
The generated energy of air turbine unit (300) is not influenced, can significantly improve liquid air energy-storage system efficiency.
9. a kind of cold-hot based on liquid air energy storage-electricity supply method according to claim 4, which is characterized in that empty
For gas liquefaction cycle operation in low pressure, system has more additional air heats of compression, has better cooling supply, heat supply and for life
The ability of hot water living, this method are conducive to promote liquid air energy-storage system low pressure operation and small-scaleization application.
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| CN112112693A (en) * | 2020-10-19 | 2020-12-22 | 中国科学院理化技术研究所 | Liquid air energy storage system adopting electric heat storage |
| CN112229092A (en) * | 2020-10-19 | 2021-01-15 | 中国科学院理化技术研究所 | Liquid air energy storage cold and hot air combined supply system |
| CN112254374A (en) * | 2020-10-19 | 2021-01-22 | 中国科学院理化技术研究所 | Cold-hot steam-electricity combined supply comprehensive energy system |
| CN112112694B (en) * | 2020-10-19 | 2023-10-13 | 中国科学院理化技术研究所 | Liquid air energy storage system and method capable of self-dissipating compression heat |
| CN115451647A (en) * | 2022-08-29 | 2022-12-09 | 北京科技大学 | Hydrogen liquefaction system integrated with liquefied air energy storage system |
| CN115451647B (en) * | 2022-08-29 | 2023-08-11 | 北京科技大学 | Hydrogen liquefaction system integrated with liquefied air energy storage system |
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