CN108561294A - A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid - Google Patents

A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid Download PDF

Info

Publication number
CN108561294A
CN108561294A CN201810276098.1A CN201810276098A CN108561294A CN 108561294 A CN108561294 A CN 108561294A CN 201810276098 A CN201810276098 A CN 201810276098A CN 108561294 A CN108561294 A CN 108561294A
Authority
CN
China
Prior art keywords
air
storage
cold
liquid
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810276098.1A
Other languages
Chinese (zh)
Other versions
CN108561294B (en
Inventor
何青
王立健
杜冬梅
刘文毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Jiatai Xinneng Technology Co ltd
Original Assignee
North China Electric Power University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by North China Electric Power University filed Critical North China Electric Power University
Priority to CN201810276098.1A priority Critical patent/CN108561294B/en
Publication of CN108561294A publication Critical patent/CN108561294A/en
Application granted granted Critical
Publication of CN108561294B publication Critical patent/CN108561294B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0157—Compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0358—Heat exchange with the fluid by cooling by expansion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/039—Localisation of heat exchange separate on the pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/041—Methods for emptying or filling vessel by vessel
    • F17C2227/042—Methods for emptying or filling vessel by vessel with change-over from one vessel to another
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

The present invention proposes a kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid comprising：Compressor set, First Heat Exchanger, the second heat exchanger, first control device, second control device, air accumulator, the first cold-storage regenerator, the second cold-storage regenerator, pressure reducing valve, fluid reservoir, liquid pump and expansion unit；The control method of the energy-storage system can be under the premise of meeting large-scale electric energy storage demand, not only it had avoided large-scale compression air energy storage systems from using the high cost problem of artificial storage tank, but also has avoided relatively relatively low released with system of liquid compressed-air energy-storage system energy storage efficiency that from capable of responding slower disadvantage.

Description

A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid
Technical field
The present invention relates to compressed air energy storage technology fields, empty more particularly to a kind of large-scale compression of the double states of gas/liquid The control method of gas energy storage system.
Background technology
Compressed air energy storage technology refers to that the rich electric power or wind energy, solar energy etc. on power grid are utilized in low power consumption Unstable new energy electric power carrys out compressed air, and compressed pressure-air is sealed and is stored, in electrical energy demands When peak, pressure-air is discharged and air turbine is pushed to drive electrical power generators, to achieve the purpose that power storage.It is existing In compressed-air energy-storage system, usually compressed pressure-air is stored in underground gas storage room or artificial air accumulator and is carried out Storage, and energy release is carried out when needed, the effect of peak load shifting is realized to power grid using storage energy.
The device that underground gas storage room is mainly stored using natural cave as pressure-air, with cheap, storage The big advantage of gas capacity, is mainly used in large-scale compression air energy storage systems.But Natural Caves are primarily present in specifically In matter environment, underground gas storage room needs to select specific geographical environment, therefore the large-scale compression air storage of application underground gas storage room The construction in energy power station is mainly influenced by geographic factor and limitation.Power grid electric energy is larger using peak-valley difference and needs to carry out electric energy The area of storage is concentrated mainly on developed regions, and the geographical environment of these developed regions is often relatively flat, lacks natural Cave is as ready-made air storage chamber.Also, the leakproofness of Natural Caves is poor, due to geology, certainly exists high pressure sky The case where gas is revealed.Therefore, the large-scale compression air energy-accumulating power station using Natural Caves as air storage chamber, the gas storage pressure of air storage chamber Power can be reduced with the passage of storage time, can shorten the duration of power storage in this way, shorten system operation time.
Artificial air accumulator is easily manufactured, and the storage device as pressure-air is not limited by geographic factor, and is had Higher storage pressure, but gas storage capacity is relatively small, and also cost is higher.If carrying out large-scale compression air energy storage electricity The caisson stood is necessarily required to carry out air storage using the artificial air accumulator joint of multiple large sizes, to meet extensive electricity The demand that can be stored, but this also considerably increases the construction cost of energy-accumulating power station, and cost problem is also current limitation compression An important factor for air energy storage systems develop.
Limitation in order to avoid large-scale caisson to compressed-air energy-storage system in the prior art, a kind of liquid compression are empty Gas energy storage system is suggested, and large-scale caisson is replaced using liquid air storage tank so that the storage of compressed-air energy-storage system Energy density greatly increases, and has broken away from limitation of the large-scale caisson to energy-storage system.But the compressed air of this liquid Energy-storage system increases air liquefaction link and liquid pump so that the energy storage efficiency of liquid compressed-air energy-storage system is less than general Gaseous compressed air energy storage systems.And liquid compressed-air energy-storage system needs to liquefy pressure-air and is in thermal energy storage process Liquid air is stored, needed in exoergic process the liquid air in liquid tank first absorb heat vaporization after carry out again expansion do Work(, thus liquid compressed-air energy-storage system release can response speed will be well below gaseous compressed air energy storage systems.
Therefore, there is an urgent need for a kind of controlling parties of the large-scale compression air energy storage systems of the double states of gas/liquid by those skilled in the art Method is broken away from limitation of the large-scale caisson to energy-storage system with control and using large-scale compression air energy storage systems, improves liquid Releasing for compressed-air energy-storage system can response speed and energy storage efficiency.
Invention content
The present invention provides a kind of control method of the electric energy storage system of operation gas/liquid two states large-scale compression air, So that those skilled in the art break away from the prior art by controlling the electric energy storage system of gas/liquid two states large-scale compression air The series of malpractice of popular compressed-air energy-storage system：1) use the large-scale compression air energy storage systems of Natural Caves by ground The limitation and presence sealing of reason factor are difficult；2) using artificial air accumulator large-scale compression air energy storage systems construction cost compared with It is high；3) energy storage efficiency of liquid compressed-air energy-storage system is less than the compressed-air energy-storage system of gaseous state storage, and releases and can respond Speed is well below gaseous compressed air energy storage systems.
The present invention provides a kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid comprising：Compression Unit, First Heat Exchanger, the second heat exchanger, first control device, second control device, air accumulator, the first cold-storage regenerator, Two cold-storage regenerators, pressure reducing valve, fluid reservoir, liquid pump and expansion unit；
The compressor set is sequentially connected in series by multiple compressors, and one end connection air of compressor described in First is empty Gas is provided with the First Heat Exchanger between adjacent two compressors, the other end of last First Heat Exchanger Connect one end of the first control device；
One end for connecting the air accumulator all the way in the other end of the first control device, the air accumulator it is another End connects the other end of the second control device, and one end of the second control device connects last second heat exchange The other end of device；
Another way in the other end of the first control device connects one end of the first cold-storage regenerator, and described The other end of one cold-storage regenerator connects one end of the pressure reducing valve, and the other end of the pressure reducing valve connects the one of the fluid reservoir End, the other end of the fluid reservoir connect the other end of the liquid pump, and one end of the liquid pump connects second cold-storage The other end of regenerator, one end of the second cold-storage regenerator connect the other end of the second control device, and described second One end of control device connects the other end of last second heat exchanger；
One end of last second heat exchanger connects the other end of the expansion unit, and the expansion group is by more Expanding machine is sequentially connected in series, and second heat exchanger is also equipped between adjacent two expanding machines, described in last One end of expanding machine connects atmospheric air；
In thermal energy storage process, using low ebb dump energy by more compressors being sequentially arranged to atmospheric air according to It is secondary to be compressed, and by each First Heat Exchanger using conduction oil by pressure-air heat derives, pressure-air is cold But room temperature is arrived, the first control device makes pressure-air be passed through gaseous state storage device, that is, enters in the air accumulator and store；When Air reserves sensor detects that the air accumulator reaches full load, and pressure-air is passed through liquid by the first control device Pressure-air, to absorb cold, is reduced to cryogenic high pressure by state storage device, pressure-air by the first cold-storage regenerator State is liquefied as liquid air using pressure reducing valve decompression, finally enters and stored in the fluid reservoir, ensure air accumulator not Can continue the pressure-air of storage can be stored in liquid form, and the reasonable cooperation stored by gaseous state and liquid makes Energy storage device stores more valley electricities；
In exoergic process, using the fast response characteristic of gaseous state storage device, the height in the air accumulator is discharged first Air is pressed, heat is led to pressure-air by each second heat exchanger using conduction oil by the second control device Enter pressure-air, and the expansion work successively in the more expanding machines being sequentially arranged so that energy-storage system can be rung rapidly Should and the electric energy stored when power grid low ebb be provided in time for power grid；When air reserves sensor detects that gaseous state storage device will be complete When full release, liquid storage device being enabled in time, discharges the liquid air in the fluid reservoir, the liquid in the fluid reservoir is empty After gas is pressurized to high pressure conditions by the liquid pump, gaseous height is vaporizated by the second cold-storage regenerator released cold quantity Air is pressed, heat is led to pressure-air by each second heat exchanger using conduction oil using the second control device Enter pressure-air, and the expansion work successively in the more expanding machines being sequentially arranged so that energy-storage system can be constant The electric energy stored when providing power grid low ebb for power grid.
Preferably, heat storage tank, first heat exchange are provided between the First Heat Exchanger and second heat exchanger Device connects one end of the heat storage tank, and the other end of the heat storage tank connects second heat exchanger, the heat exchanger profit Heat imported into the heat storage tank with conduction oil and carries out heat storage or by heat derives in the heat storage tank.
Preferably, cold storage tank is provided between the first cold-storage regenerator and the second cold-storage regenerator, it is described First cold-storage regenerator connects one end of the cold storage tank, and the other end of the cold storage tank connects the second cold-storage backheat Device, the cold-storage regenerator are stored in the cold storage tank for absorbing cold or release the cold in the cold storage tank It puts.
Preferably, the first control device and the second control device include three-way pipeline and two control valves, It is respectively enterd in the air accumulator or the fluid reservoir by opening or closing relevant control valve control compressed gas；Or Selection discharges compressed gas from the air accumulator or the fluid reservoir.
Preferably, the First Heat Exchanger is led heat between the grade of pressure-air using conduction oil as interstage cooler Enter into the heat storage tank and carries out heat storage.
Preferably, second heat exchanger is as reheat in stage device, using conduction oil by the heat in the heat storage tank Export heating pressure-air.
Preferably, the air accumulator is artificial air accumulator；The fluid reservoir is artificial fluid reservoir.
Beneficial effects of the present invention are：
Reasonable efficient control using the control method to the double state large-scale compression air energy storage systems of gas/liquid, with gaseous state The mode that caisson and liquid caisson be combined with each other is stored, and the two makes up for each other's deficiencies and learn from each other.Utilize liquid storage tank The lower deficiency of high energy storage density feature supplements gaseous state storage tank energy storage density, the large-scale air accumulator that can solve pure gaseous state storage are high The geographical limitation of cost problem and natural air storage chamber；Using the fast response characteristic and energy storage efficiency of small-sized caisson higher than pure Liquid stores the advantages of energy storage efficiency, with make up the storage of pure liquid air release can response speed it is relatively low and energy storage efficiency is less than pure The shortcomings that gaseous air stores.
Under the control of control method of the present invention, the double state large-scale compression air energy storage systems of gas/liquid can meet big rule Under the premise of mould power storage demand, large-scale compression air energy storage systems was not only avoided to use the high cost problem of artificial storage tank, but also Avoid relatively relatively low released with system of liquid compressed-air energy-storage system energy storage efficiency that from capable of responding slower disadvantage.
Description of the drawings
Fig. 1 is the level Four compression-four of the control method of the large-scale compression air energy storage systems of the double states of gas/liquid of the present invention The structural schematic diagram of grade swelling state.
Specific implementation mode
To keep the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
Unless otherwise defined, the technical term or scientific terminology that the disclosure uses should be tool in disclosure fields There is the ordinary meaning that the personage of general technical ability is understood." first ", " second " and the similar word used in the disclosure is simultaneously It does not indicate that any sequence, quantity or importance, and is used only to distinguish different component parts.
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this Invention is described in further detail.
A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid comprising：Compressor set, first Heat exchanger 2, the second heat exchanger 5, first control device, second control device, air accumulator 3, the first cold-storage regenerator 8, second store Cold regenerator 12, pressure reducing valve 9, fluid reservoir 10, liquid pump 11 and expansion unit；
The compressor set is sequentially connected in series by multiple compressors 1, and one end of compressor 1 described in First connects air Air is provided with the First Heat Exchanger 2 between adjacent two compressors 1, last First Heat Exchanger 2 it is another One end connects one end of the first control device；
One end for connecting the air accumulator 3 all the way in the other end of the first control device, the air accumulator 3 it is another One end connects the other end of the second control device, and one end of the second control device connects last and described second changes The other end of hot device 5；
Another way in the other end of the first control device connects one end of the first cold-storage regenerator 8, described The other end of first cold-storage regenerator 8 connects one end of the pressure reducing valve 9, and the other end of the pressure reducing valve 9 connects the liquid storage One end of tank 10, the other end of the fluid reservoir 10 connect the other end of the liquid pump 11, and one end of the liquid pump 11 connects The other end of the second cold-storage regenerator 12 is connect, one end of the second cold-storage regenerator 12 connects the second control device The other end, one end of the second control device connects the other end of last second heat exchanger 5；
One end of last second heat exchanger 5 connects the other end of the expansion unit, and the expansion group is by more Platform expanding machine 6 is sequentially connected in series, and second heat exchanger 5 is also equipped between adjacent two expanding machines 6, last One end of the expanding machine 6 connects atmospheric air；
In thermal energy storage process, using low ebb dump energy by more compressors 1 being sequentially arranged to atmospheric air It is compressed successively, and utilizes conduction oil by pressure-air heat derives by each First Heat Exchanger 2, by pressure-air It is cooled to room temperature, the first control device makes pressure-air be passed through gaseous state storage device, that is, enters in the air accumulator 3 and deposit Storage；When air reserves sensor detects that the air accumulator 3 reaches full load, by the first control device by pressure-air It is passed through liquid storage device, pressure-air, to absorb cold, pressure-air is reduced to low by the first cold-storage regenerator 8 Warm high pressure conditions are liquefied as liquid air using the decompression of the pressure reducing valve 9, finally enter and stored in the fluid reservoir 10, protected The pressure-air that card air accumulator 3 cannot continue storage can be stored in liquid form, be stored by gaseous state and liquid Rationally cooperation makes energy storage device store more valley electricities；
In exoergic process, using the fast response characteristic of gaseous state storage device, the height in the air accumulator 3 is discharged first Air is pressed, utilizes conduction oil by heat by each second heat exchanger 5 pressure-air by the second control device Import pressure-air, and the expansion work successively in the more expanding machines 6 being sequentially arranged so that energy-storage system can be rapid It responds and is that power grid provides the electric energy stored when power grid low ebb in time；When air reserves sensor detects that gaseous state storage device will Completely release when, enable liquid storage device in time, discharge the liquid air in the fluid reservoir 10, in the fluid reservoir 10 After liquid air is pressurized to high pressure conditions by the liquid pump 11, vaporized by 12 released cold quantity of the second cold-storage regenerator For gaseous pressure-air, pressure-air is utilized by each second heat exchanger 5 using the second control device and is led Heat is imported pressure-air, and the expansion work successively in the more expanding machines 6 being sequentially arranged by deep fat so that energy storage system The electric energy that system stores when constantly can provide power grid low ebb for power grid.
It is provided with cold storage tank 7 between the first cold-storage regenerator 8 and the second cold-storage regenerator 12, described first Cold-storage regenerator 8 connects one end of the cold storage tank 7, and the other end of the cold storage tank 7 connects the second cold-storage backheat Device 12, the cold-storage regenerator are stored in the cold storage tank 7 or for absorbing cold by the cold in the cold storage tank 7 Release.
The first control device and the second control device are controllable including three-way pipeline and three control valves 13 Compressed gas respectively enters in the air accumulator 3 or the fluid reservoir 10；Or it selects from the air accumulator 3 or the liquid storage Compressed gas is discharged in tank 10.
The First Heat Exchanger 2 is used as interstage cooler, and is imported into heat between the grade of pressure-air using conduction oil Heat storage is carried out in the heat storage tank 4.
Second heat exchanger 5 is used as reheat in stage device, is added the heat derives in the heat storage tank 4 using conduction oil Thermal high air.
The air accumulator 3 is artificial air accumulator；The fluid reservoir 10 is artificial fluid reservoir.
As shown in Figure 1, with a kind of large-scale compression air energy storage systems of the double states of gas/liquid of level Four compression-quadruple expansion Control method for.
In the energy storage stage
In low power consumption, valley electricity is consumed by four-stage compressor group, air is compressed, air passes sequentially through Compressor compresses at different levels are to high pressure conditions, and the heat of compression between storage level.Control system is by controlling gaseous state caisson valve Aperture makes compressed pressure-air enter in gaseous state caisson, and gaseous state caisson is equipped with air reserves sensor, Can the air reserve information in gaseous state caisson be fed back into control system in time.When air reaches in gaseous state caisson When full load condition, control system closes the inlet valve of gaseous state caisson in time, opens simultaneously the entrance of liquid caisson Valve makes pressure-air enter in liquid storage device.Liquid caisson is by cold heat exchanger, decompression liquefier, liquid The components such as storage tank, liquid pump form, and the pressure-air into liquid caisson first passes through heat exchanger absorption exoergic process storage Cold, reach cryogenic high pressure state, then by decompression liquefier, decompression be liquefied as liquid air, enter finally into liquid It is stored in tank.
It can the stage releasing
In peak of power consumption, supply falls short of demand for grid power, which can timely respond to and discharge the electric energy of storage. Since gaseous state caisson has the characteristics that good quick response, pressure-air can be discharged in time and does work and sends out electric energy, because The control system of this energy-storage system quickly opens the outlet valve of gaseous state caisson, and release pressure-air enters quadruple expansion In unit, the pressure-air of release passes through heat exchangers at different levels and expanding machine successively, absorbs the heat of compression of storage and releases electric energy. When air capacity deficiency in the air reserves Sensor monitoring to tank in gaseous state caisson, control system opens liquid storage in time The outlet valve of device of air, liquid air enter liquid pump pressurization, gaseous high pressure are vaporizated into subsequently into heat exchanger released cold quantity Air, and store the cold of process release.After liquid air becomes gaseous high pressure air, gaseous state caisson is closed in time Outlet valve, so that the air that the pressure-air that liquid caisson releases is substituted in time in gaseous state caisson is expanded Acting, can make up liquid caisson in this way and release can respond slower disadvantage, ensure the high efficiency of compressed-air energy-storage system And fast response characteristic.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：It is still Can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equally replaced It changes；And these modifications or replacements, the essence for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution God and range.

Claims (7)

1. a kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid, it is characterised in that including：Compressor Group, First Heat Exchanger, the second heat exchanger, first control device, second control device, air accumulator, the first cold-storage regenerator, second Cold-storage regenerator, pressure reducing valve, fluid reservoir, liquid pump and expansion unit；
The compressor set is sequentially connected in series by multiple compressors, and one end of compressor described in First connects atmospheric air, It is provided with the First Heat Exchanger between adjacent two compressors, the other end connection of last First Heat Exchanger One end of the first control device；
The other end of one end for connecting the air accumulator all the way in the other end of the first control device, the air accumulator connects The other end of the second control device is connect, one end of the second control device connects last second heat exchanger The other end；
Another way in the other end of the first control device connects one end of the first cold-storage regenerator, and described first stores The other end of cold regenerator connects one end of the pressure reducing valve, and the other end of the pressure reducing valve connects one end of the fluid reservoir, The other end of the fluid reservoir connects the other end of the liquid pump, and one end of the liquid pump connects the second cold-storage backheat One end of the other end of device, the second cold-storage regenerator connects the other end of the second control device, second control One end of device connects the other end of last second heat exchanger；
One end of last second heat exchanger connects the other end of the expansion unit, and the expansion group is expanded by more Machine is sequentially connected in series, and is also equipped with second heat exchanger between adjacent two expanding machines, last described expansion One end of machine connects atmospheric air；
In thermal energy storage process, using low ebb dump energy by more compressors being sequentially arranged to atmospheric air successively into Row compression, and utilize conduction oil by pressure-air heat derives by each First Heat Exchanger, pressure-air is cooled to Room temperature, the first control device make pressure-air be passed through gaseous state storage device, that is, enter in the air accumulator and store；Work as air Reserves sensor detects that the air accumulator reaches full load, and pressure-air, which is passed through liquid, by the first control device deposits Pressure-air, to absorb cold, is reduced to cryogenic high pressure state by storage device, pressure-air by the first cold-storage regenerator, It is liquefied as liquid air using pressure reducing valve decompression, finally enters and is stored in the fluid reservoir, ensures that air accumulator cannot be after Renewing the pressure-air of storage can be stored in liquid form, and the reasonable cooperation stored by gaseous state and liquid makes energy storage Device stores more valley electricities；
In exoergic process, using the fast response characteristic of gaseous state storage device, the high pressure discharged first in the air accumulator is empty Heat is imported height by pressure-air by gas by each second heat exchanger by the second control device using conduction oil Press air, and the expansion work successively in the more expanding machines being sequentially arranged so that energy-storage system can respond rapidly to simultaneously The electric energy stored when providing power grid low ebb in time for power grid；When air reserves sensor detects that gaseous state storage device will be released completely When putting, liquid storage device being enabled in time, discharges the liquid air in the fluid reservoir, the liquid air in the fluid reservoir is logical It crosses after the liquid pump is pressurized to high pressure conditions, it is empty to be vaporizated into gaseous high pressure by the second cold-storage regenerator released cold quantity Heat is imported height by pressure-air by gas by each second heat exchanger using the second control device using conduction oil Press air, and the expansion work successively in the more expanding machines being sequentially arranged so that energy-storage system can be constantly electricity Net provides the electric energy stored when power grid low ebb.
2. the control method of the large-scale compression air energy storage systems of the double states of gas/liquid according to claim 1, feature exist In：Heat storage tank is provided between the First Heat Exchanger and second heat exchanger, the First Heat Exchanger connects the heat One end of storage tank is measured, the other end of the heat storage tank connects second heat exchanger, and the heat exchanger will be warm using conduction oil Amount, which is imported into the heat storage tank, carries out heat storage or by heat derives in the heat storage tank.
3. the control method of the large-scale compression air energy storage systems of the double states of gas/liquid according to claim 1, feature exist In：Cold storage tank, the first cold-storage backheat are provided between the first cold-storage regenerator and the second cold-storage regenerator Device connects one end of the cold storage tank, and the other end of the cold storage tank connects the second cold-storage regenerator, the cold-storage Regenerator is used to absorb cold and is stored in the cold storage tank or discharges the cold in the cold storage tank.
4. the control method of the large-scale compression air energy storage systems of the double states of gas/liquid according to claim 1, feature exist In：The first control device and the second control device include three-way pipeline and two control valves, by playing on or off Relevant control valve control compressed gas is closed to respectively enter in the air accumulator or the fluid reservoir；Or it selects from the storage Compressed gas is discharged in gas tank or the fluid reservoir.
5. the control method of the large-scale compression air energy storage systems of the double states of gas/liquid according to one of claim 1-4, It is characterized in that：Heat between the grade of pressure-air is imported into institute by the First Heat Exchanger as interstage cooler, using conduction oil State progress heat storage in heat storage tank.
6. the control method of the large-scale compression air energy storage systems of the double states of gas/liquid according to one of claim 1-4, It is characterized in that：Second heat exchanger is added the heat derives in the heat storage tank as reheat in stage device, using conduction oil Thermal high air.
7. the control method of the large-scale compression air energy storage systems of the double states of gas/liquid according to one of claim 1-4, It is characterized in that：The air accumulator is artificial air accumulator；The fluid reservoir is artificial fluid reservoir.
CN201810276098.1A 2018-03-29 2018-03-29 A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid Active CN108561294B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810276098.1A CN108561294B (en) 2018-03-29 2018-03-29 A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810276098.1A CN108561294B (en) 2018-03-29 2018-03-29 A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid

Publications (2)

Publication Number Publication Date
CN108561294A true CN108561294A (en) 2018-09-21
CN108561294B CN108561294B (en) 2019-08-06

Family

ID=63533498

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810276098.1A Active CN108561294B (en) 2018-03-29 2018-03-29 A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid

Country Status (1)

Country Link
CN (1) CN108561294B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110374839A (en) * 2019-07-30 2019-10-25 上海锅炉厂有限公司 A kind of liquefied air energy-storage system and method using pressurised liquid propane cold-storage
CN110761980A (en) * 2019-11-27 2020-02-07 中国科学院工程热物理研究所 Supercritical compressed air energy storage system with stepped utilization of work energy and cold energy
CN114165729A (en) * 2020-09-11 2022-03-11 安瑞科(廊坊)能源装备集成有限公司 Online temperature adjusting device for LNG (liquefied Natural gas) filling and LNG filling method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452612A (en) * 2013-08-28 2013-12-18 中国科学院工程热物理研究所 Compressed air energy storage system using carbon dioxide as working medium
CN104204462A (en) * 2012-02-23 2014-12-10 普雷斯特有限公司 Combined cycle computer-aided engineering technology (CCC)
DE102014105237B3 (en) * 2014-04-11 2015-04-09 Mitsubishi Hitachi Power Systems Europe Gmbh Method and device for storing and recovering energy
CN204610203U (en) * 2015-03-30 2015-09-02 华北电力大学 A kind of adiabatic compression air energy-storage and the integrated system of solar energy
CN103573315B (en) * 2013-11-04 2016-08-17 合肥通用机械研究院 Compressed air and hydraulic combined micro-miniature compressed air energy storage system
CN106481378A (en) * 2016-12-13 2017-03-08 中国科学院广州能源研究所 A kind of new liquefaction air energy storage systems
US9638068B2 (en) * 2013-12-09 2017-05-02 Mada Energie Llc Energy storage and recovery methods, systems, and devices
CN106677966A (en) * 2016-12-28 2017-05-17 华北电力大学 Gas-liquid two-phase combined energy storage power generation system and energy storage power generation method thereof
CN107542649A (en) * 2017-09-25 2018-01-05 中国科学院理化技术研究所 Cryogenic high pressure liquid air energy-storage system
CN206972326U (en) * 2017-05-26 2018-02-06 华北电力大学（保定） A kind of Novel cold-storage liquefied air energy-storing and power-generating system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104204462A (en) * 2012-02-23 2014-12-10 普雷斯特有限公司 Combined cycle computer-aided engineering technology (CCC)
CN103452612A (en) * 2013-08-28 2013-12-18 中国科学院工程热物理研究所 Compressed air energy storage system using carbon dioxide as working medium
CN103573315B (en) * 2013-11-04 2016-08-17 合肥通用机械研究院 Compressed air and hydraulic combined micro-miniature compressed air energy storage system
US9638068B2 (en) * 2013-12-09 2017-05-02 Mada Energie Llc Energy storage and recovery methods, systems, and devices
DE102014105237B3 (en) * 2014-04-11 2015-04-09 Mitsubishi Hitachi Power Systems Europe Gmbh Method and device for storing and recovering energy
CN204610203U (en) * 2015-03-30 2015-09-02 华北电力大学 A kind of adiabatic compression air energy-storage and the integrated system of solar energy
CN106481378A (en) * 2016-12-13 2017-03-08 中国科学院广州能源研究所 A kind of new liquefaction air energy storage systems
CN106677966A (en) * 2016-12-28 2017-05-17 华北电力大学 Gas-liquid two-phase combined energy storage power generation system and energy storage power generation method thereof
CN206972326U (en) * 2017-05-26 2018-02-06 华北电力大学（保定） A kind of Novel cold-storage liquefied air energy-storing and power-generating system
CN107542649A (en) * 2017-09-25 2018-01-05 中国科学院理化技术研究所 Cryogenic high pressure liquid air energy-storage system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110374839A (en) * 2019-07-30 2019-10-25 上海锅炉厂有限公司 A kind of liquefied air energy-storage system and method using pressurised liquid propane cold-storage
CN110374839B (en) * 2019-07-30 2024-03-08 上海锅炉厂有限公司 Liquefied air energy storage system and method for cold storage by using pressurized liquid propane
CN110761980A (en) * 2019-11-27 2020-02-07 中国科学院工程热物理研究所 Supercritical compressed air energy storage system with stepped utilization of work energy and cold energy
CN110761980B (en) * 2019-11-27 2021-10-26 中国科学院工程热物理研究所 Supercritical compressed air energy storage system with stepped utilization of work energy and cold energy
CN114165729A (en) * 2020-09-11 2022-03-11 安瑞科(廊坊)能源装备集成有限公司 Online temperature adjusting device for LNG (liquefied Natural gas) filling and LNG filling method
CN114165729B (en) * 2020-09-11 2024-05-17 安瑞科(廊坊)能源装备集成有限公司 Online temperature adjusting device for LNG filling and LNG filling method

Also Published As

Publication number Publication date
CN108561294B (en) 2019-08-06

Similar Documents

Publication Publication Date Title
CN105888742B (en) Efficient liquid-air energy storage/release system
CN103016152B (en) Supercritical air energy storage system with novel process
US8122718B2 (en) Systems and methods for combined thermal and compressed gas energy conversion systems
CN202970911U (en) Novel-process supercritical air energy storage system
CN102758748B (en) High-pressure liquid air energy storage/release system
CN108591027B (en) A kind of large-scale compression air energy storage systems of the double states of gas/liquid
CN105370407B (en) Low temperature liquid air energy storage systems
CN102758690A (en) Efficient high-pressure liquid air energy storage/release system
CN108561294B (en) A kind of control method of the large-scale compression air energy storage systems of the double states of gas/liquid
CN106677848A (en) Joint energy storage system and method with air and water as energy storage working media
CN105736056B (en) Liquid air energy storage system
CN105715518B (en) A kind of summer cooling winter heat supply cold, heat and electricity triple supply device and method
CN108533343A (en) A kind of method and system improving compressed-air energy storage efficiency using ORC
CN108561293B (en) A kind of method and system improving LAES system effectiveness and response speed
CN105697066A (en) Low-temperature liquid air energy storage system
CN105509528A (en) Multistage gradient phase change cold storage device
CN114033517B (en) Geothermal power generation and cold and hot supply system based on carbon dioxide compression energy storage and operation method
CN110206600A (en) A kind of heat pump power storage system and method storing up cold heat accumulation based on array
CN105352265B (en) Working medium cold accumulation system is pre-chilled in liquid
CN103954091B (en) A kind of cold storage refrigerating system making full use of cold energy of liquefied natural gas
CN205425926U (en) Multistage gradient phase transition regenerator
CN202811238U (en) High-pressure liquid-state air energy storage/release system
CN205225461U (en) Low temperature liquefied air energy storage system
CN202811079U (en) High-efficiency and high-pressure liquid air energy storage/ release system
CN209116560U (en) A kind of multiple tank fused salt hold over system of compressed gas and pump for liquid salts coupling driving

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20230625

Address after: 101407 Room 01-209-5, Floor 2, Building 13, Yard 53, Yanqi Avenue, Yanqi Economic Development Zone, Huairou District, Beijing

Patentee after: Beijing Jiatai Xinneng Technology Co.,Ltd.

Address before: 102206 No. 2 Nong Road, Zhu Xin Zhuang, Beijing, Changping District

Patentee before: NORTH CHINA ELECTRIC POWER University

TR01 Transfer of patent right