CN113280573A - Liquid air energy storage device with cold energy self-compensation function of cold accumulator - Google Patents

Liquid air energy storage device with cold energy self-compensation function of cold accumulator Download PDF

Info

Publication number
CN113280573A
CN113280573A CN202110643248.XA CN202110643248A CN113280573A CN 113280573 A CN113280573 A CN 113280573A CN 202110643248 A CN202110643248 A CN 202110643248A CN 113280573 A CN113280573 A CN 113280573A
Authority
CN
China
Prior art keywords
air
cold
heat exchanger
energy
energy storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110643248.XA
Other languages
Chinese (zh)
Inventor
季伟
郭璐娜
陈六彪
崔晨
郭嘉
王俊杰
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.)
Technical Institute of Physics and Chemistry of CAS
Original Assignee
Technical Institute of Physics and Chemistry of CAS
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 Technical Institute of Physics and Chemistry of CAS filed Critical Technical Institute of Physics and Chemistry of CAS
Priority to CN202110643248.XA priority Critical patent/CN113280573A/en
Publication of CN113280573A publication Critical patent/CN113280573A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • 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
    • 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
    • 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"
    • F25J1/0035—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 gas expansion with extraction of work
    • F25J1/0037—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 gas expansion with extraction of work of a return stream
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • 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.
    • F25J1/0285—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings
    • F25J1/0288—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings using work extraction by mechanical coupling of compression and expansion of the refrigerant, so-called companders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/028—Control arrangements therefor
    • 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
    • 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
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/40—Separating high boiling, i.e. less volatile components from air, e.g. CO2, hydrocarbons
    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/04—Compressor cooling arrangement, e.g. inter- or after-stage cooling or condensate removal
    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/30—Compression of the feed stream
    • 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
    • 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
    • Y02E60/14—Thermal energy storage

Abstract

The invention provides a cold energy self-compensating liquid air energy storage device of a cold accumulator, which comprises an energy storage unit, a primary cold accumulator, a secondary cold accumulator and an energy release unit, wherein the energy storage unit comprises a first-stage cold accumulator and a second-stage cold accumulator; the energy storage unit comprises a compression heat storage utilization device, a primary liquefaction heat exchanger and a secondary liquefaction heat exchanger which are sequentially connected in series; the energy release unit comprises an air turbine set, a second-stage rewarming heat exchanger, a first-stage rewarming heat exchanger and a compression heat storage and utilization device which are sequentially connected in series, an inlet of the air turbine set is connected with an air outlet of the compression heat storage and utilization device, and an outlet of the air turbine set is connected with the first-stage rewarming heat exchanger through a compensation pipeline. The invention realizes that the cold energy compensation is provided for the primary cold accumulator through the low-temperature exhaust of the air turbine unit, improves the cold accumulation efficiency of the primary cold accumulator and the secondary cold accumulator, further improves the energy storage efficiency of the liquid air energy storage device, and simultaneously improves the economical efficiency of the operation of the liquid air energy storage device.

Description

Liquid air energy storage device with cold energy self-compensation function of cold accumulator
Technical Field
The invention relates to the technical field of energy storage, in particular to a cold energy self-compensating liquid air energy storage device of a cold accumulator.
Background
In recent years, the global energy storage industry has been rapidly developed, covering the global energy storage market scale of the new energy generation side, the grid side and the user side, and is growing at a rate of 9% per year, which is much higher than the global power growth rate of 2.5%. Particularly in the field of renewable energy sources, the rapid development of renewable energy sources represented by wind and light brings huge research and development space for large-scale energy storage technology. However, due to the inherent intermittency and instability of renewable energy, the problems of wind and light abandonment still severely restrict the large-scale grid connection and safe and stable operation of renewable energy.
The liquid air energy storage has the outstanding advantages of large-scale long-time energy storage, cleanness, low carbon, safety, long service life and no limitation of geographical conditions, has wide application scenes, and especially has outstanding advantages in the fields of renewable energy consumption, power grid peak regulation and frequency modulation, standby black start, distributed power and microgrid support, comprehensive energy service and the like.
The economy and energy storage efficiency of liquid air energy storage are closely related. The low-temperature cold accumulator is a core component of the liquid air energy storage system, can store high-grade cold energy of liquid air and complete an intermittent energy release process, transmits the high-grade cold energy to deep low-temperature cold energy in the energy storage process, increases the air liquefaction rate, and improves the energy storage efficiency of the system. The cold accumulation efficiency is a key factor influencing the electricity-electricity conversion efficiency of the liquid air energy storage system.
However, the system energy storage efficiency is affected to some extent due to the inherent cold leakage loss of the regenerator. Therefore, the cold energy compensation problem of the cold accumulator is solved by using the internal energy of the system, and the method has important significance for improving the energy storage efficiency of the liquid air energy storage system.
Disclosure of Invention
The invention provides a liquid air energy storage device with cold energy self-compensation of a cold accumulator, which is used for solving the defect of low energy storage efficiency caused by cold leakage loss of the cold accumulator in the liquid air energy storage device in the prior art, realizing cold energy compensation of the cold accumulator and improving the liquid air energy storage efficiency.
The invention provides a cold energy self-compensating liquid air energy storage device of a cold accumulator, which comprises an energy storage unit, a primary cold accumulator, a secondary cold accumulator and an energy release unit, wherein the energy storage unit comprises a first-stage cold accumulator and a second-stage cold accumulator;
the energy storage unit comprises a compression heat storage utilization device, a primary liquefaction heat exchanger and a secondary liquefaction heat exchanger which are sequentially connected in series, the primary liquefaction heat exchanger is connected with the primary cold accumulator through a first circulation pipeline, and the secondary liquefaction heat exchanger is connected with the secondary cold accumulator through a second circulation pipeline;
the energy release unit comprises a second-stage rewarming heat exchanger, a first-stage rewarming heat exchanger and the compression heat storage and utilization device, wherein the second-stage rewarming heat exchanger, the first-stage rewarming heat exchanger and the compression heat storage and utilization device are sequentially connected in series through an air turbine set, the second-stage rewarming heat exchanger is connected with the second-stage cold storage device through a third circulation pipeline, the first-stage rewarming heat exchanger is connected with the first-stage cold storage device through a fourth circulation pipeline, an inlet of the air turbine set is connected with an air outlet of the compression heat storage and utilization device, and an outlet of the air turbine set is connected with the first-stage rewarming heat exchanger through a compensation pipeline.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, provided by the invention, the first circulating pipeline is provided with the first circulating fan, the second circulating pipeline is provided with the second circulating fan, the third circulating pipeline is provided with the third circulating fan, and the fourth circulating pipeline is provided with the fourth circulating fan.
The liquid air energy storage device with the cold energy self-compensation function for the cold accumulator further comprises a liquid air storage tank, wherein the energy storage unit is connected with a liquid inlet of the liquid air storage tank, and a liquid outlet of the liquid air storage tank is connected with the energy release unit.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, the energy storage unit comprises a primary air compressor, a precooler, a molecular sieve adsorption tower, a secondary air compressor, a compression heat storage utilization device, a primary liquefaction heat exchanger, a secondary liquefaction heat exchanger, a low-temperature expansion machine and a gas-liquid separator which are sequentially connected in series, and a liquid outlet of the gas-liquid separator is connected with a liquid inlet of a liquid air storage tank.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator provided by the invention, the air outlet of the gas-liquid separator is sequentially connected with the secondary liquefaction heat exchanger, the primary liquefaction heat exchanger and the precooler through the air return pipeline.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, provided by the invention, the air outlet of the precooler is sequentially connected with the supercharger and the secondary air compressor through the supercharging pipeline.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, provided by the invention, the liquid outlet of the liquid air storage tank is sequentially connected with the secondary rewarming heat exchanger, the primary rewarming heat exchanger and the compression heat storage utilization device through the energy release pipeline, and the low-temperature pump is arranged on the energy release pipeline between the liquid air storage tank and the secondary rewarming heat exchanger.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, provided by the invention, the air outlet of the primary air compressor is connected with the air inlet of the secondary air compressor.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, provided by the invention, the energy storage unit further comprises an air filter, and an air outlet of the air filter is connected with an air inlet of the primary air compressor.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, the compression heat storage utilization device is a packed bed type heat accumulator.
The invention provides a cold energy self-compensating liquid air energy storage device of a cold accumulator, which is characterized in that an energy storage unit, a primary cold accumulator, a secondary cold accumulator and an energy release unit are arranged; the energy storage unit comprises a compression heat storage utilization device, a primary liquefaction heat exchanger and a secondary liquefaction heat exchanger which are sequentially connected in series, the primary liquefaction heat exchanger is connected with the primary cold accumulator through a first circulation pipeline, and the secondary liquefaction heat exchanger is connected with the secondary cold accumulator through a second circulation pipeline; the energy release unit comprises an air turbine set, a secondary rewarming heat exchanger, a primary rewarming heat exchanger and the compression heat storage and utilization device which are sequentially connected in series, the second-stage rewarming heat exchanger is connected with the second-stage cold accumulator through a third circulating pipeline, the first-stage rewarming heat exchanger is connected with the first-stage cold accumulator through a fourth circulating pipeline, the inlet of the air turbine unit is connected with the air outlet of the compression heat storage utilization device, the outlet of the air turbine unit is connected with the primary rewarming heat exchanger through a compensation pipeline, so that the cold energy compensation is provided for the primary regenerator through the low-temperature exhaust of the air turbine unit, the cold storage efficiency of the primary regenerator and the secondary regenerator is improved, and then the energy storage efficiency of the liquid air energy storage device is improved, and the running economy of the liquid air energy storage device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic process flow diagram of a liquid air energy storage device with cold energy self-compensation for a cold accumulator provided by the invention;
reference numerals:
1. an air filter; 2. a primary air compressor; 3. a precooler; 4. a molecular sieve adsorption tower; 5. a secondary air compressor; 6. a compression heat storage utilizer; 7. a primary liquefaction heat exchanger; 8. a secondary liquefaction heat exchanger; 9. a low temperature expander; 10. a supercharger; 11. a gas-liquid separator; 12. a liquid air storage tank; 13. a cryopump; 14. a secondary rewarming heat exchanger; 15. a first-stage rewarming heat exchanger; 16. a secondary regenerator; 17. a primary regenerator; 18. a first circulating fan; 19. a fourth circulating fan; 20. a second circulating fan; 21. a third circulating fan; 22. an air turbine assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a cold energy self-compensating liquid air energy storage device of a regenerator in combination with fig. 1, which comprises an energy storage unit, a primary regenerator 17, a secondary regenerator 16 and an energy release unit;
the energy storage unit comprises a compression heat storage utilization device 6, a primary liquefaction heat exchanger 7 and a secondary liquefaction heat exchanger 8 which are sequentially connected in series, wherein the primary liquefaction heat exchanger 7 is connected with a primary cold accumulator 17 through a first circulation pipeline, and the secondary liquefaction heat exchanger 8 is connected with a secondary cold accumulator 16 through a second circulation pipeline;
the energy release unit comprises an air turbine set 22, a second-stage rewarming heat exchanger 14, a first-stage rewarming heat exchanger 15 and a compression heat storage and utilization device 6 which are sequentially connected in series, the second-stage rewarming heat exchanger 14 is connected with a second-stage cold accumulator 16 through a third circulation pipeline, the first-stage rewarming heat exchanger 15 is connected with a first-stage cold accumulator 17 through a fourth circulation pipeline, an inlet of the air turbine set 22 is connected with an air outlet of the compression heat storage and utilization device 6, and an outlet of the air turbine set 22 is connected with the first-stage rewarming heat exchanger 15 through a compensation pipeline. It can be understood that the energy storage unit is an air liquefaction unit, and the energy release unit is a liquefied air rewarming unit, that is, the energy storage unit exchanges heat with the primary regenerator 17 and the secondary regenerator 16 to release heat, so as to realize air liquefaction energy storage; the energy release unit absorbs heat through heat exchange with the secondary cold accumulator 16 and the primary cold accumulator 17, and liquid air rewarming and energy releasing are achieved.
Further, along the air flow direction, the energy storage unit comprises a compression heat storage utilization device 6, a primary liquefaction heat exchanger 7 and a secondary liquefaction heat exchanger 8 which are sequentially connected in series, the compression heat storage utilization device 6 is used for recovering, storing and utilizing high-temperature compression heat, air in the primary liquefaction heat exchanger 7 exchanges heat with a cold storage medium in a first circulation pipeline of a primary cold storage device 17, and air in the secondary liquefaction heat exchanger 8 exchanges heat with a cold storage medium in a second circulation pipeline of a secondary cold storage device 16.
Further, along the flowing direction of the liquid air, the energy release unit comprises a secondary rewarming heat exchanger 14, a primary rewarming heat exchanger 15 and a compression heat storage utilization device 6 which are sequentially connected in series, the liquid air in the secondary rewarming heat exchanger 14 and the cold storage medium in the third circulating pipeline of the secondary cold storage device 16 perform heat exchange and heat absorption, the liquid air in the primary rewarming heat exchanger 15 and the cold storage medium in the fourth circulating pipeline of the primary cold storage device 17 perform heat exchange and heat absorption, and the gasification of the liquid air is realized to release cold energy.
Wherein, the inlet of the air turbine unit 22 is connected with the air outlet of the compression heat storage utilization device 6, the outlet of the air turbine unit 22 is connected with the first-stage rewarming heat exchanger 15 through a compensation pipeline, the gasified liquid air enters the compression heat storage utilization device 6 for preheating, then enters the air turbine unit 22 for doing work, drives the generator to generate electricity and then is merged into the power grid, and the liquid air energy release process is completed. The outlet of the air turbine unit 22 conveys the exhaust gas to the primary rewarming heat exchanger 15, and the cold energy is transferred to the primary regenerator 17, so that the loss compensation of the cold energy generated by the primary regenerator 17 in the operation process is realized.
It is worth to be noted that the primary regenerator 17 and the secondary regenerator 16 may adopt one or more of liquid phase (methanol, propane, R123, etc.), solid phase (metal, rock, glass, etc.) or phase change cold storage materials, and liquid or gaseous air directly or indirectly contacts with the cold storage medium for heat exchange. The regenerator can be arranged in one stage or multiple stages, in series or in parallel, or in a corresponding combined structure, in this embodiment, in two stages.
The primary liquefaction heat exchanger 7, the secondary liquefaction heat exchanger 8, the primary rewarming heat exchanger 15 and the secondary rewarming heat exchanger 14 can be in one or two combinations of plate-fin structures and wound pipe structures.
The air turbine assembly 22 may be of a radial, axial, or radial-axial configuration, with the air turbine assembly 22 including one or more turbines connected in series, in parallel, or integrated as a turbine assembly.
Each connecting pipeline is provided with a corresponding control valve which can be driven in a pneumatic, electric or hydraulic mode.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, provided by the invention, the first circulating pipeline is provided with the first circulating fan 18, the second circulating pipeline is provided with the second circulating fan 20, the third circulating pipeline is provided with the third circulating fan 21, and the fourth circulating pipeline is provided with the fourth circulating fan 19. It can be understood that, in order to increase the circulation speed and the heat exchange efficiency of the circulating cold storage medium (taking liquid air as an example in the present embodiment), a first circulating fan 18 is disposed on a first circulating pipeline through which the cold storage medium enters the primary cold storage device 17 from the primary liquefaction heat exchanger 7, and a second circulating fan 20 is disposed on a second circulating pipeline through which the cold storage medium enters the secondary cold storage device 16 from the secondary liquefaction heat exchanger 8; a third circulating fan 21 is arranged on a third circulating pipeline for the cold accumulation medium to enter the secondary rewarming heat exchanger 14 from the secondary cold accumulator 16, and a fourth circulating fan 19 is arranged on a fourth circulating pipeline for the cold accumulation medium to enter the primary rewarming heat exchanger 15 from the primary cold accumulator 17.
The liquid air energy storage device for cold energy self-compensation of the cold accumulator further comprises a liquid air storage tank 12, an energy storage unit is connected with a liquid inlet of the liquid air storage tank 12, and a liquid outlet of the liquid air storage tank 12 is connected with an energy release unit. It can be understood that the liquid air storage tank 12 is used for storing the liquid air storing the cold energy after the energy storage unit is operated, and delivering the liquid air to the energy release unit through the liquid outlet for cold energy release.
It is noted that the liquid air storage tank 12 may be a dewar or a cryogenic storage tank.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, provided by the invention, an energy storage unit comprises a primary air compressor 2, a precooler 3, a molecular sieve adsorption tower 4, a secondary air compressor 5, a compression heat storage utilization device 6, a primary liquefaction heat exchanger 7, a secondary liquefaction heat exchanger 8, a low-temperature expander 9 and a gas-liquid separator 11 which are sequentially connected in series, wherein the liquid outlet of the gas-liquid separator 11 is connected with the liquid inlet of a liquid air storage tank 12. It will be appreciated that the primary air compressor 2 and the secondary air compressor 5 may be of piston, screw or centrifugal construction. The compressor unit comprises one or more compressors which are connected in series, in parallel or integrated into the compressor unit. The precooler 3 can be in one or a combination of a plurality of shell-and-tube structure, plate-fin structure and wound tube structure, and can also be an air cooling tower. The low temperature expander 9 may be a belt liquid expander or a pure liquid expander. The gas-liquid separator 11 is configured to separate liquefied air after liquefaction from non-liquefied gaseous air, and to deliver the liquefied air to the liquid air storage tank 12.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, provided by the invention, the air outlet of the gas-liquid separator 11 is sequentially connected with the secondary liquefaction heat exchanger 8, the primary liquefaction heat exchanger 7 and the precooler 3 through the air return pipeline. It can be understood that the gaseous air separated in the gas-liquid separator 11 flows back to the secondary liquefaction heat exchanger 8 and the primary liquefaction heat exchanger 7 through the gas return pipeline from the gas outlet to absorb heat and raise the temperature, and then enters the precooler 3 to be precooled.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, the air outlet of the precooler 3 is sequentially connected with the supercharger 10 and the secondary air compressor 5 through the supercharging pipeline. It can be understood that the gaseous air separated in the gas-liquid separator 11 is pre-cooled by the pre-cooler 3, then is delivered to the booster 10 through the pressurization pipeline, and is delivered to the secondary air compressor 5 for continuous pressurization after being pressurized by the booster 10.
It should be noted that the supercharger 10 is coaxially driven by the low-temperature expander 9 and may be of a centrifugal type.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, a liquid outlet of a liquid air storage tank 12 is sequentially connected with a secondary rewarming heat exchanger 14, a primary rewarming heat exchanger 15 and a compression heat storage utilization device 6 through an energy release pipeline, and a low-temperature pump 13 is arranged on the energy release pipeline between the liquid air storage tank 12 and the secondary rewarming heat exchanger 14. As can be appreciated. The cryopump 13 is used for pressurizing liquid air delivered from the liquid air storage tank 12, the pressurized liquid air flows into the secondary rewarming heat exchanger 14 and the primary rewarming heat exchanger 15 in sequence to absorb heat and gasify, cold energy is stored in the primary regenerator 17 and the secondary regenerator 16 respectively, and compressed air enters the compressed heat storage utilization device 6 for utilization.
It is noted that cryopump 13 may be of a piston or centrifugal configuration.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, the air outlet of the primary air compressor 2 is connected with the air inlet of the secondary air compressor 5. It will be appreciated that the compressed air from the primary air compressor 2 can be directly delivered to the secondary air compressor 5 as required.
According to the liquid air energy storage device with the cold energy self-compensation function for the cold accumulator, the energy storage unit further comprises an air filter 1, and an air outlet of the air filter 1 is connected with an air inlet of a primary air compressor 2. It will be appreciated that the air is filtered by the air filter 1 and enters the primary air compressor 2. It is worth mentioning that the air filter 1 may be a self-cleaning filter.
According to the liquid air energy storage device with the cold energy self-compensation function of the cold accumulator, the compression heat storage utilization device 6 is a packed bed type heat accumulator. It can be understood that the compression heat storage utilization device 6 can store the compression heat for turbine inlet air preheating in the energy release stage, and a packed bed type heat accumulator can be selected, and the packed bed type heat accumulator can also be used as a hot water circulation system or a heat conduction oil circulation system.
The energy storage and release process flow of the cold energy self-compensation liquid air energy storage device of the cold accumulator provided by the invention is as follows:
in the process of energy storage
The normal temperature and normal pressure air is purified by an air filter 1, then compressed to medium temperature and high pressure (150 ℃, 8bar) by a primary air compressor 2, cooled to about 5 ℃ by a precooler 3, flows into a molecular sieve adsorption tower 4 for decarburization and dehydration, then flows into a secondary air compressor 5 for continuous pressurization to 7MPa, 250 ℃, recycles high temperature compression heat through a compression heat storage and utilization device 6, then the high pressure air cooled to the normal temperature enters a liquefaction side primary liquefaction heat exchanger 7, is cooled to-90 ℃ by return gas and circulating air from a primary regenerator 17, continuously enters a liquefaction side secondary liquefaction heat exchanger 8, is cooled to-174 ℃ by the return gas and circulating air from a secondary regenerator 16, is expanded to 1bar by a low temperature expander 9, generates gas-liquid two-phase air, then enters a gas-liquid separator 11, the gas-phase air returns to the liquefaction side primary liquefaction heat exchanger 7 and the secondary liquefaction heat exchanger 8 for providing cold energy, then is heated to 0 ℃, the compressed air flowing into the precooler 3 is cooled and then enters a supercharger 10 to be supercharged to 8bar, and then is converged into the inlet of the secondary air compressor 5 to be continuously supercharged. The first circulating fan 18 and the second circulating fan 20 respectively drive the circulating air to transfer the cold energy stored in the primary cold accumulator 17 and the secondary cold accumulator 16 to the compressed air, so that the temperature of the compressed air is reduced. The liquid air is stored in the liquid air storage tank 12, and the energy storage process of the liquid air energy storage device is completed.
In the process of energy release
Liquid air in the liquid air storage tank 12 is pressurized to 4.5MPa by the low-temperature pump 13, enters the secondary rewarming heat exchanger 14 at the rewarming side, is rewarming and gasified to-100 ℃, cold energy is stored in the secondary cold accumulator 16 by exchanging heat with circulating air, the circulating air is driven by the third circulating fan 21, continues to enter the primary rewarming heat exchanger 15 at the rewarming side, is rewarming and gasified to 20 ℃, the cold energy is stored in the primary cold accumulator 17 by exchanging heat with the circulating air, the circulating air is driven by the fourth circulating fan 19, the gasified high-pressure air is preheated to 240 ℃ by the compression heat storage utilization device 6, then enters the air turbine unit 22 for doing work, further drives the generator to generate electricity and then is merged into the power grid, and the energy release process of the liquid air energy storage device is completed;
the exhaust of the air turbine unit 22 flows into the first-stage reheating heat exchanger 15 at the reheating side to transfer the cold energy to the first-stage cold accumulator 17, the total pressure ratio of the air turbine unit 22 can be adjusted by changing the post-pump pressure of the low-temperature pump 13, and the exhaust temperature can be flexibly adjusted by changing the stage number of the air turbine unit 22 so as to compensate the cold energy loss generated by the first-stage cold accumulator 17 in the operation process.
The invention provides a cold energy self-compensating liquid air energy storage device of a cold accumulator, which is characterized in that an energy storage unit, a primary cold accumulator, a secondary cold accumulator and an energy release unit are arranged; the energy storage unit comprises a compression heat storage utilization device, a primary liquefaction heat exchanger and a secondary liquefaction heat exchanger which are sequentially connected in series, the primary liquefaction heat exchanger is connected with the primary cold accumulator through a first circulation pipeline, and the secondary liquefaction heat exchanger is connected with the secondary cold accumulator through a second circulation pipeline; the energy release unit comprises an air turbine unit and second-stage rewarming heat exchangers which are sequentially connected in series, a first-stage rewarming heat exchanger and a compression heat storage utilization device, the second-stage rewarming heat exchanger is connected with a second-stage regenerator through a third circulation pipeline, the first-stage rewarming heat exchanger is connected with the first-stage regenerator through a fourth circulation pipeline, an inlet of the air turbine unit is connected with an air outlet of the compression heat storage utilization device, an outlet of the air turbine unit is connected with the first-stage rewarming heat exchanger through a compensation pipeline, cold energy compensation is provided for the first-stage regenerator through low-temperature exhaust of the air turbine unit, cold storage efficiency of the first-stage regenerator and the second-stage regenerator is improved, energy storage efficiency of the liquid air energy storage device is improved, and economical efficiency of operation of the liquid air energy storage device is improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A liquid air energy storage device with cold energy self-compensation of a cold accumulator is characterized by comprising an energy storage unit, a primary cold accumulator, a secondary cold accumulator and an energy release unit;
the energy storage unit comprises a compression heat storage utilization device, a primary liquefaction heat exchanger and a secondary liquefaction heat exchanger which are sequentially connected in series, the primary liquefaction heat exchanger is connected with the primary cold accumulator through a first circulation pipeline, and the secondary liquefaction heat exchanger is connected with the secondary cold accumulator through a second circulation pipeline;
the energy release unit comprises an air turbine set, a second-stage rewarming heat exchanger, a first-stage rewarming heat exchanger and a compression heat storage and utilization device which are sequentially connected in series, the second-stage rewarming heat exchanger is connected with the second-stage cold storage device through a third circulation pipeline, the first-stage rewarming heat exchanger is connected with the first-stage cold storage device through a fourth circulation pipeline, an inlet of the air turbine set is connected with an air outlet of the compression heat storage and utilization device, and an outlet of the air turbine set is connected with the first-stage rewarming heat exchanger through a compensation pipeline.
2. The cold energy self-compensating liquid air energy storage device of the cold accumulator of claim 1, wherein a first circulating fan is arranged on the first circulating pipeline, a second circulating fan is arranged on the second circulating pipeline, a third circulating fan is arranged on the third circulating pipeline, and a fourth circulating fan is arranged on the fourth circulating pipeline.
3. The cold energy self-compensating liquid air energy storage device of the cold accumulator of claim 1, further comprising a liquid air storage tank, wherein the energy storage unit is connected with an inlet of the liquid air storage tank, and an outlet of the liquid air storage tank is connected with the energy release unit.
4. The cold energy self-compensating liquid air energy storage device of the cold accumulator of claim 3, wherein the energy storage unit comprises a primary air compressor, a precooler, a molecular sieve adsorption tower, a secondary air compressor, the compression heat storage utilization device, the primary liquefaction heat exchanger, the secondary liquefaction heat exchanger, a cryogenic expander and a gas-liquid separator which are connected in series in sequence, and a liquid outlet of the gas-liquid separator is connected with a liquid inlet of the liquid air storage tank.
5. The cold energy self-compensating liquid air energy storage device of the cold accumulator of claim 4, wherein the air outlet of the gas-liquid separator is sequentially connected with the secondary liquefaction heat exchanger, the primary liquefaction heat exchanger and the precooler through an air return pipeline.
6. The cold energy self-compensating liquid air energy storage device of the cold accumulator of claim 4, wherein the air outlet of the precooler is connected with a supercharger and the secondary air compressor in sequence through a supercharging pipeline.
7. The cold energy self-compensating liquid air energy storage device of the cold accumulator of claim 3, wherein a liquid outlet of the liquid air storage tank is connected with the secondary rewarming heat exchanger, the primary rewarming heat exchanger and the compression heat storage utilization device in sequence through an energy releasing pipeline, and a low temperature pump is arranged on the energy releasing pipeline between the liquid air storage tank and the secondary rewarming heat exchanger.
8. The self-compensating liquid air energy storage device for cold energy of cold accumulator of claim 4, wherein the air outlet of the primary air compressor is connected with the air inlet of the secondary air compressor.
9. The self-compensating liquid air energy storage device with cold energy of the regenerator as claimed in claim 4, wherein the energy storage unit further comprises an air filter, and the air outlet of the air filter is connected with the air inlet of the primary air compressor.
10. A cold self-compensating liquid air energy storage device according to any one of claims 1 to 9, wherein the compression heat storage utilizer is a packed bed regenerator.
CN202110643248.XA 2021-06-09 2021-06-09 Liquid air energy storage device with cold energy self-compensation function of cold accumulator Pending CN113280573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110643248.XA CN113280573A (en) 2021-06-09 2021-06-09 Liquid air energy storage device with cold energy self-compensation function of cold accumulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110643248.XA CN113280573A (en) 2021-06-09 2021-06-09 Liquid air energy storage device with cold energy self-compensation function of cold accumulator

Publications (1)

Publication Number Publication Date
CN113280573A true CN113280573A (en) 2021-08-20

Family

ID=77283993

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110643248.XA Pending CN113280573A (en) 2021-06-09 2021-06-09 Liquid air energy storage device with cold energy self-compensation function of cold accumulator

Country Status (1)

Country Link
CN (1) CN113280573A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114440487A (en) * 2022-01-30 2022-05-06 上海发电设备成套设计研究院有限责任公司 System device for reducing backpressure of coal-fired unit
CN114542224A (en) * 2022-01-30 2022-05-27 上海发电设备成套设计研究院有限责任公司 System device and method for coupling liquid compressed air and thermal power generating unit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003254086A (en) * 2002-02-26 2003-09-10 Hitachi Ltd Liquid air energy storage system and method of controlling it
CN202970911U (en) * 2012-12-06 2013-06-05 中国科学院工程热物理研究所 Novel-process supercritical air energy storage system
CN105370407A (en) * 2015-12-03 2016-03-02 中国科学院理化技术研究所 Low-temperature liquid-state 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
CN107893684A (en) * 2017-11-13 2018-04-10 清华大学 A kind of tail gas Hui Leng compressed-air energy-storage system
CN108240235A (en) * 2017-05-26 2018-07-03 华北电力大学（保定） A kind of non-compensation combustion type liquefied air energy-storing and power-generating system
CN108533476A (en) * 2018-05-21 2018-09-14 中国科学院工程热物理研究所 A kind of heat pump supercritical air energy storage system
CN215724549U (en) * 2021-06-09 2022-02-01 中国科学院理化技术研究所 Liquid air energy storage device with cold energy self-compensation function of cold accumulator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003254086A (en) * 2002-02-26 2003-09-10 Hitachi Ltd Liquid air energy storage system and method of controlling it
CN202970911U (en) * 2012-12-06 2013-06-05 中国科学院工程热物理研究所 Novel-process supercritical air energy storage system
CN105370407A (en) * 2015-12-03 2016-03-02 中国科学院理化技术研究所 Low-temperature liquid-state 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
CN108240235A (en) * 2017-05-26 2018-07-03 华北电力大学（保定） A kind of non-compensation combustion type liquefied air energy-storing and power-generating system
CN107893684A (en) * 2017-11-13 2018-04-10 清华大学 A kind of tail gas Hui Leng compressed-air energy-storage system
CN108533476A (en) * 2018-05-21 2018-09-14 中国科学院工程热物理研究所 A kind of heat pump supercritical air energy storage system
CN215724549U (en) * 2021-06-09 2022-02-01 中国科学院理化技术研究所 Liquid air energy storage device with cold energy self-compensation function of cold accumulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114440487A (en) * 2022-01-30 2022-05-06 上海发电设备成套设计研究院有限责任公司 System device for reducing backpressure of coal-fired unit
CN114542224A (en) * 2022-01-30 2022-05-27 上海发电设备成套设计研究院有限责任公司 System device and method for coupling liquid compressed air and thermal power generating unit

Similar Documents

Publication Publication Date Title
CN110374838B (en) Transcritical carbon dioxide energy storage system and method based on LNG (liquefied Natural gas) cold energy utilization
CN108979762B (en) Staged cold accumulation type supercritical compressed air energy storage system and method
CN112963207B (en) Liquefied air hybrid energy storage and power generation integrated system and method
CN102102586B (en) Peak load power generation device
CN112923595B (en) Self-condensation type compressed carbon dioxide energy storage system and method based on vortex tube
CN112325497A (en) Liquefied carbon dioxide energy storage system and application thereof
WO2011054169A1 (en) Supercritical air energy storage system
WO2018218617A1 (en) Staged cold energy storage type supercritical compressed air energy storage system and method
CN214741517U (en) Liquid carbon dioxide energy storage power generation system coupled with coal electric machine set
CN114111413B (en) Compression energy storage system adopting carbon dioxide mixed working medium and working method thereof
CN217737678U (en) Liquefied air energy storage system of coupling LNG cold energy and ORC
CN105736056B (en) Liquid air energy storage system
CN113280573A (en) Liquid air energy storage device with cold energy self-compensation function of cold accumulator
CN113739516A (en) Air separation energy storage coupling oxygen-enriched combustion system and method
CN115451647B (en) Hydrogen liquefaction system integrated with liquefied air energy storage system
CN108266229B (en) Adiabatic constant voltage compressed air energy storage system based on volatile fluid
CN114033517A (en) Geothermal power generation and cold and heat supply system based on carbon dioxide compression energy storage and operation method
CN102287267A (en) Method and system for periodic cooling, storing and heating with multiple regenerators
CN215724557U (en) Air separation energy storage coupling oxygen-enriched combustion system
CN116006292A (en) Liquefied air energy storage system coupling LNG cold energy, ORC technology and natural heat source and working method of liquefied air energy storage system
CN215724549U (en) Liquid air energy storage device with cold energy self-compensation function of cold accumulator
CN114352373A (en) Regenerative energy storage power generation method and power generation system thereof
Nabat et al. Liquid air energy storage
CN113294243A (en) Combined energy storage power generation system of hydrogen and liquid air
CN109595461B (en) LNG regasification and liquid air preparation system and working method

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