CN102758748A - High-pressure liquid air energy storage/release system - Google Patents
High-pressure liquid air energy storage/release system Download PDFInfo
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- CN102758748A CN102758748A CN2012102667010A CN201210266701A CN102758748A CN 102758748 A CN102758748 A CN 102758748A CN 2012102667010 A CN2012102667010 A CN 2012102667010A CN 201210266701 A CN201210266701 A CN 201210266701A CN 102758748 A CN102758748 A CN 102758748A
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Abstract
The invention discloses a high-pressure liquid air energy storage/release system, which comprises an energy storage subsystem and an energy release subsystem; in the energy storage subsystem, a compressor set (1), a cold accumulator (2), a low-temperature heat exchanger (3), a high-pressure low-temperature storage tank (4), a low-temperature expansion machine set (6) and a low-temperature heat exchanger (3) are communicated in sequence; the energy release subsystem comprises a self-pressurization unit (5) and an acting unit; and the high-pressure and low-temperature storage tank (4), the cold accumulator (2), a heat accumulator/heat exchanger (7) and a main expansion machine set (8) are connected in sequence, and the main expansion machine set (8) drives a power generator (24). The high-pressure liquid air energy storage system disclosed by the invention has the advantages of high energy density, high efficiency, no power consumption in the power generation stage, suitability for various power stations, no greenhouse gas generation, capability of recovering intermediate-temperature and low-temperature waste heat and the like.
Description
Technical field
The present invention relates to the energy storage technical field, is a kind of based on high-pressure liquid air stored energy and utilize institute's energy of depositing to produce the energy storage of electric energy/release ability system.
Background technique
Universal day by day along with renewable energy sources (wind energy, solar energy etc.), and peak load regulation network, raising electric network reliability and improve the active demand of the quality of power supply, the significance of electric power energy-storage system highlights day by day.The contradiction of peak-valley difference during extensive electric power energy storage technology can effectively solve electrical production and use; The reliability of power system power supply can be provided; Can solve the intermittent type energy such as wind-power electricity generation, solar energy, the tidal energy instable key technology of generating electricity.
Simultaneously, the electric power energy-storage system still is the key technology of distributed energy resource system.Distributed energy resource system adopts the great quantity of small distributed power system to replace the electric power system of conventional large-scale centralized formula, and when system had run into local line fault, the electric power energy-storage system can provide continual power supply supply.
At present existing electric power energy storage technology comprises the energy storage of drawing water, compressed-air energy storage, batteries to store energy, superconduction magnetic energy, flywheel energy storage and super capacitor etc.Wherein with the energy storage of drawing water, heat accumulation energy storage and compressed-air energy storage be the physical method energy storage of representative because its cost is low, stored energy capacitance is big, be fit to the large-scale commercial applications application, account for 99.5% of world's energy storage total amount.
The power station energy-storage system that draws water lets the water of the low reservoir of motor drives pump handle be extracted into high reservoir to consume a part of electric energy through pipeline when electric power system is in the valley load.Next interim when peak load, the water of high reservoir makes water pump and motor reverse running becoming water turbine and generator send electric energy through pipeline and supplies with the user, play the effect of peak load shifting thus.Advantages such as the technical mature and reliable of power station energy-storage system, efficient of drawing water high (～70%), stored energy capacitance are big are widely used at present.But the power station energy-storage system that draws water needs special geographical condition to build two reservoirs and dam, and the construction period very long (general about 7～15 years), initial investment is huge.More thorny is that building large reservoir can large size flood vegetation even city, causes ecology and immigration problem, therefore builds the power station energy-storage system that draws water and has received increasing restriction.
Conventional compression air energy-storage system is at low power consumption, and air pressure is contractd to be stored in the gas storage chamber, and making electric energy be converted into the interior of air can store; In peak of power consumption, high-pressure air discharges from gas storage chamber, gets into gas-turbine combustion chamber and burns together with fuel, drives turbine power generation then.Compressed-air energy-storage system has that stored energy capacitance is big, the energy storage cycle is long, efficient is high (50%～70%) and advantage such as specific investment cost is less relatively.But the energy storage density of compressed-air energy storage technology is low, and difficult point is the place that needs suitable ability storing compressed air, the for example cavern of sealing or abandoned mine etc.And; Compressed-air energy-storage system still relies on combustion of fossil fuels thermal source is provided; Face on the one hand the fossil fuel threat with rise in price of petering out; Its burning still produces pollutants such as nitride, sulphide and carbon dioxide on the other hand, does not meet green (zero-emission), reproducible energy development requirement.
For solving the subject matter that conventional compression air energy-storage system faces; Chinese scholars was carried out ground compressed-air energy-storage system (SVCAES) respectively, was taken back the compressed-air energy-storage system (AACAES) of heat and the research of air vapor combined cycle compressed-air energy-storage system (CASH) etc. recent years; Make compressed-air energy-storage system can avoid combustion of fossil fuels basically; But the energy density of compressed-air energy-storage system is still very low, needs large-scale gas storage chamber.
In recent years, Chinese scholars has developed the liquid air energy-storage system, owing to adopt the normal pressure liquid air to store, energy storage density is higher.But, in the step-down throttling link of thermal energy storage process and the cryopump supercharging link of exoergic process the energy that needs consumption higher is arranged, thereby has reduced the operational efficiency of energy-storage system.
Summary of the invention
The objective of the invention is to disclose a kind of novel energy-storing/release can system, is that high-pressure liquid air energy storage/release can system, compares existing compressed-air energy-storage system etc. and has the big characteristics of energy storage density.Compare the liquid air energy-storage system, have the high characteristics of system stored energy efficient, can be fit to the supporting use in various types of power stations.
For achieving the above object, technical solution of the present invention is:
A kind of high-pressure liquid air energy storage/release the ability system comprises compressor bank, accumulation of heat/heat exchanger, cold storage apparatus, cryogenic heat exchanger, high pressure low temperature storage tank, main expansion unit, low-temperature expansion unit, generator, driver element, it is characterized in that,
Said energy storage/release and can system comprise the energy storage subtense angle and release the ability subtense angle:
In the said energy storage subtense angle; Said drive unit drives compressor bank; The bottom liquid side of said compressor bank, cold storage apparatus, cryogenic heat exchanger, high pressure low temperature storage tank is through pipeline order UNICOM successively; The top gas side of said high pressure low temperature storage tank, low-temperature expansion unit, cryogenic heat exchanger, cold storage apparatus are through pipeline order UNICOM successively, and the pipeline between said low-temperature expansion unit and the high pressure low temperature storage tank is provided with the regulating valve I;
Said releasing can comprise from compress cell and acting unit by subtense angle; Wherein, Saidly comprise automatic pressure intensifier from compress cell; Said automatic pressure intensifier one end connects the bottom liquid side of said high pressure low temperature storage tank through pipeline, and the other end connects the top gas side of said high pressure low temperature storage tank through pipeline, and the pipeline between the bottom liquid side of said automatic pressure intensifier and high pressure low temperature storage tank is provided with the regulating valve II; In the said acting unit; The bottom liquid side of said high pressure low temperature storage tank, cold storage apparatus, accumulation of heat/heat exchanger, main expansion unit connect through pipeline successively; The bottom liquid side and the pipeline between the cold storage apparatus of said high pressure low temperature storage tank are provided with another regulating valve III, and said main expansion unit drives generator.
Preferably, compressor bank comprises at least one compressor, and multiple compressors is connected each other or is integrated into whole multistage compressor, and each primary compressor inlet connects air source.Preferably, main expansion unit comprises at least one decompressor, and many decompressors are connected each other or are integrated into whole multiple expansion engine, and the gas outlet of each final stage decompressor leads to atmosphere.Preferably, the low-temperature expansion unit comprises at least one low-temp low-pressure decompressor, and many cryogenic expansion machines are connected each other and are multiple expansion engine, and the gas outlet of each final stage decompressor gets into the heat exchanger in the cold storage apparatus.
The transmission shaft of driver element and compressor bank is affixed, and the transmission shaft of generator and main expansion unit is affixed.
High-pressure liquid air of the present invention energy storage/release the ability system, its flow process is:
During energy storage, the compressor bank of utilizing drive unit drives to be made up of low pressure compressor and high pressure compressor is compressed to the normal temperature high voltage state with air in certain amount; The normal temperature high voltage air gets in the cold storage apparatus and cools off, and temperature is reduced to and become the high-pressure liquid air below the condensing temperature behind high-pressure air process cold storage apparatus and the cryogenic heat exchanger; The high-pressure liquid air gets into the high pressure low temperature storage tank stores; Meanwhile the gaseous state high-pressure air of high pressure low temperature tank inside produces cryogenic cold energy through the cryogenic expansion machine back of expanding, and through cryogenic heat exchanger cold energy is passed to the high-pressure air of main road, discharges through cold storage apparatus to remain cold energy.
When releasing ability; Automatic pressure intensifier makes the pressurization of high pressure low temperature liquid air storage tank; The high-pressure liquid air is warming up to the normal temperature high voltage state and reclaims cold energy in cold storage apparatus; In accumulation of heat/heat exchanger, absorb heat high-pressure air is further heated up, get into main expansion unit expansion acting then, drive generator for electricity generation.
Preferably, described high-pressure liquid air energy storage/release the ability system, its said driver element is drive motor or wind energy conversion system; During for drive motor, be to be power supply with wherein one or more of conventional power plant low ebb electricity, nuclear power, wind-powered electricity generation, solar electrical energy generation, water power or tidal power generation.
Preferably, described high-pressure liquid air system, its said accumulation of heat/heat exchanger is provided with pipeline, and this pipeline and extraneous thermal source interlink.
Preferably, high-pressure liquid air of the present invention energy storage/release the ability system also comprises air purification and purifying in its air compression, the cooling procedure, remove airborne solid matter and foreign gas; Air purification and purifier apparatus are integrated in compressor bank and/or the cold storage apparatus.
Preferably, said compressor bank, overall pressure tatio is between 38～340; When being multiple compressors, multiple compressors is coaxial series connection form or split axle parallel form; In the parallel form, each split axle and main driving axle are dynamically connected.
Preferably, said expansion unit, overall expansion ratio is between 38～340, and the exhaust of final stage decompressor is near normal pressure; When being many decompressors, many decompressors are coaxial series connection form or split axle parallel form; In the parallel form, each split axle and main driving axle are dynamically connected; Accumulation of heat/heat exchanger heat temperature raising is all passed through in the air inlet of decompressors at different levels earlier.
Preferably, said multiple compressors, many main decompressors are distributed on a live axle or the many live axles.
Preferably, said compressor bank, main expansion unit and/or inflated with low pressure unit are piston type, axial flow, centrifugal, screw type or hybrid.
Preferably, said accumulation of heat/heat exchanger is stored one or more of following heat energy through pipeline during energy storage: the heat of compression that compressor produces; Industrial exhaust heat or used heat; Solar thermal energy.When releasing ability, the pressurized air before the decompressors at different levels is advanced in heating.
In a further advantageous embodiment, in the said energy storage subtense angle, the high-pressure air that said compressor bank produces gets into cold storage apparatus after said accumulation of heat/heat exchanger cooling.Further; Said releasing can also comprise high-temperature heat accumulation/heat exchanger in the subtense angle; The said main expansion unit of entering after the high-pressure air after the said accumulation of heat/heat exchanger heating is through said high-temperature heat accumulation/heat exchanger, said high-temperature heat accumulation/heat exchanger is waste heat/waste heat exchanger, interlinks through pipeline and solar thermal collector or industrial exhaust heat/waste heat fluid; Through the direct heating high-pressure air of waste heat/waste heat exchanger, improve the temperature of the preceding high-pressure air of into main expansion unit.
Preferably, said accumulation of heat/heat exchanger, its heat exchange form is that high-pressure air directly contacts heat-accumulating material or through heat exchanger and heat-accumulating material heat exchange, its accumulation of heat form be sensible heat, latent heat or chemical reaction pine for one or more; The heat storage medium that adopts is water, paraffin, bio-oil, mineral-type crystalline hydrate salt, fuse salt, metal and alloy thereof, organic type of fatty acid, stone, rock or concrete, and heat storage medium is stored in the thermally insulated container.Preferably, said cold storage apparatus is cooled to 78K-160K (K is a Kelvin temperature unit) with high-pressure air, is a kind of or combination in sensible heat cold-storage or the solid-liquid phase change cold-storage; The sensible heat cool storage medium that adopts is in rock, pottery, metal oxide spheres, sealing ice hockey, grit, concrete, aluminium strip dish or other metal or the nonmetallic substance one or more; The solid-liquid phase change cool storage medium is ammonia and the aqueous solution, salts solution, alkanes, olefines material and the compound thereof of solid-liquid phase change temperature between 81K～273K, and one or more in the alcohols and the aqueous solution thereof, cool storage medium are stored in the thermally insulated container; High-pressure air or low-pressure air in cold storage apparatus with the direct contact heat-exchanging of cool storage medium or through heat exchanger and cold-storage heat-exchanger heat exchange; During energy storage, cold storage apparatus cools off high-pressure air, and when releasing ability, cold storage apparatus reclaims the cold that also stores in the high-pressure liquid atmosphere temperature rising process.
Preferably; The liquefaction of high-pressure air replenished cryogenic cold energy when described cryogenic expansion machine was used for energy storage; The gas outlet that multistage cryogenic expansion machine is every grade all leads to cryogenic heat exchanger; The live axle of multistage cryogenic expansion machine can be connected with certain stage compressor, and the output work of its inflation process can drive certain stage compressor and come pressurized air.
Preferably, said low-temperature storage tank is high pressure Dewar storage tank or low temperature storage tank, and liquid air stores under high pressure conditions, and design pressure will be far above the maximum pressure of real work.
Preferably, described high-pressure liquid air energy storage/release the ability system, its said control first order compressor air inflow is through regulating compressor load, start-stop part compressor or regulating the control that pressure ratio realizes air inflow.
Preferably, described high-pressure liquid air energy storage/release the ability system when it releases ability, is controlled the cryogenic high pressure tank inner pressure through the valve on the pipeline, regulates generating capacity through the control of the valve on pipeline high-pressure liquid air gasification amount.
Preferably; Described high-pressure liquid air energy storage/release can system; The heat of compression, waste heat, used heat or solar energy heating be stored in be used for the heating high-pressure air in accumulation of heat/heat exchanger; Improve the temperature of advancing the preceding high-pressure air of decompressor, waste heat, used heat are waste heat, the used heat of power plant, cement industry, iron and steel metallurgical industry, chemical industry.
The invention has the advantages that: energy density is high, efficient is high, not wasted work power consumption of power generating stage, be applicable to various power stations (comprising renewable energy sources power stations such as solar energy, wind energy), do not produce greenhouse gases, recyclable in advantage such as low temperature (calorific value) used heat.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of the embodiment of the invention 3.
Embodiment
For making the object of the invention, technological scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, to further explain of the present invention.
As shown in Figure 1, for high-pressure liquid air of the present invention energy storage/releasing can system embodiment 1.Wherein, compressor bank 1, cold storage apparatus 2, cryogenic heat exchanger 3, high-pressure liquid air reservoir 4, automatic pressure intensifier 5, cryogenic expansion machine 6; Accumulation of heat/heat exchanger 7, main expansion unit 8, generator 24, drive motor 9, valve 14,19,21; Pipeline 10,11,12,13,15,16,17; 18,20,22,23,25,26, inlet air A.
Drive motor 9 is affixed with the total transmission shaft of compressor bank 1, and generator 24 is affixed with the total transmission shaft of decompressor 8.Compressor bank 1 inlet meets air A, interlinks through pipeline 10 and cold storage apparatus 2.Cold storage apparatus 2, cryogenic heat exchanger 3, the liquid storage tank 4 of high pressure low temperature interlink through pipeline 11,12 orders.Liquid storage tank 4 tops of high pressure low temperature and cryogenic expansion machine 6, cryogenic heat exchanger 3, cold storage apparatus 2 interlink through pipeline 13,15,16 orders.Be provided with regulating valve 14 in the pipeline 13.The liquid storage tank 4 of high pressure low temperature interlinks through pipeline 18 with automatic pressure intensifier 5, and regulating valve 19 is arranged on the pipeline 18.The liquid storage tank 4 of high pressure low temperature, cold storage apparatus 2, accumulation of heat/heat exchanger 7, expansion unit 8 interlink through pipeline 20,22,23.The outlet gas line 25 logical atmosphere of expansion unit 8.
During energy storage; Low ebb (at a low price) electric drive motor 9 drives compressor bank; Air A gets into compressor bank 1 and is compressed to the normal temperature high voltage state, and the compressor outlet air gets into cold storage apparatus 2 through pipeline 10, is cooled near condensing temperature or below the condensing temperature by cool storage medium.The cryogenic high pressure air that goes out cold storage apparatus 2 absorbs further cooling through cryogenic heat exchanger 3, obtains the high-pressure liquefaction air, gets in the high pressure low temperature wet tank 4 through pipeline 12.Simultaneously; Valve 14 on the pipeline 13 is opened; The low temperature high pressure gas on high pressure low temperature wet tank 4 tops gets into low-temperature expansion unit 6 through pipeline 13, and the back temperature that expands further reduces, after cryogenic heat exchanger 3 heat exchange; Get into cold storage apparatus 2, the residue cold energy is absorbed by cold-storage heat-exchanger after pipeline 17 back emptyings.
When releasing ability; Open valve 19 and 21; After automatic pressure intensifier 5 will be pressurized to certain pressure from the liquid air of high pressure low temperature storage tank 4, be delivered to cold storage apparatus 2 and cool storage medium heat exchange and gasification, reclaim cold simultaneously by pipeline 20; The high-pressure air that goes out cold storage apparatus 2 gets into accumulation of heat/heat exchanger 7 via pipeline 22 again and further heats up, and the high-pressure air after temperature raises injects main expansion unit 8 expansion actings through pipeline 23.
Generally speaking, operation when energy storage is different with exoergic process, during energy storage, compressor bank 1 work, main expansion unit 8 is closed down, and valve 21 is closed, and cold storage apparatus 2 released cold quantities are cooled to low temperature with high-pressure air.Automatic pressure intensifier 5 is closed down, and valve 19 is closed.6 work of low-temperature expansion unit, valve 14 is opened.Then opposite when releasing ability, compressor bank 1 is closed down, and low-temperature expansion unit 6 is closed down, and valve 14 is closed.Automatic pressure intensifier 5 work, valve 19 is opened.Main expansion unit 8 work, valve 21 is opened, and cold storage apparatus 2 reclaims, stores cold, while high-pressure liquid atmosphere temperature rising, 7 on accumulation of heat/heat exchanger discharges heat energy, further promotes the high-pressure air temperature.In addition, external heat then can store via pipeline 26 entering accumulation of heat/heat exchangers 7 at any time.
Fig. 2 be storage of the present invention with the high-pressure liquid air energy storage that discharges the heat of compression/release can system implementation example 2; Its agent structure is identical with embodiment 1; The high-pressure air that compressor bank 1 produces gets into cold storage apparatus 2 after accumulation of heat/heat exchanger 7' cooling, accumulation of heat/heat exchanger 7' mainly stores and discharges the compressed-air actuated heat of compression.
During energy storage, compressor bank 1 outlet high-pressure air at first gets into accumulation of heat/heat exchanger 7', and the heat that air is compressed generation is absorbed by heat-accumulating material, and the temperature of high-pressure air is reduced to normal temperature simultaneously.The normal temperature high voltage air that goes out accumulation of heat/heat exchanger 7' gets into cold storage apparatus 2 successively, is kept in the high-pressure liquid storage tank 4 after cryogenic heat exchanger 3 liquefaction.And in that releasing can the stage, the normal temperature high voltage air that goes out cold storage apparatus 2 gets into accumulation of heat/heat exchanger 7' and absorbs heat, is heated to the laggard expansion unit 8 of becoming owner of of high temperature and expands and do work.
Fig. 3 is the embodiment 3 that high-pressure liquid air energy-storage system of the present invention combines with solar energy thermal-power-generating or industrial exhaust heat utilization, and its agent structure is identical with embodiment 2, and other has increased the attachment portion with solar thermal collector or industrial exhaust heat/used heat pipeline.The high temperature fluid heat release is lowered the temperature to get into high-temperature heat accumulation/heat exchangers 7 from the high temperature fluid of solar thermal collector or industrial exhaust heat/used heat through pipeline 26 in ", at high-temperature heat accumulation/heat exchanger 7 ".And the main high-pressure air that goes out accumulation of heat/heat exchanger 7' is at high-temperature heat accumulation/heat exchanger 7 " in be heated to high temperature, get into the acting of expanding of main expansion unit 8 through pipeline 23 then.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of the present invention.
Claims (10)
1. high-pressure liquid air energy storage/release can system; Comprise compressor bank (1), cold storage apparatus (2), cryogenic heat exchanger (3), high pressure low temperature storage tank (4), low-temperature expansion unit (6), accumulation of heat/heat exchanger (7; 7'), main expansion unit (8), driver element (9), generator (24); It is characterized in that
Said energy storage/release and can system comprise the energy storage subtense angle and release the ability subtense angle:
In the said energy storage subtense angle; Said driver element (9) drive compression unit (1); The bottom liquid side of said compressor bank (1), cold storage apparatus (2), cryogenic heat exchanger (3), high pressure low temperature storage tank (4) is through pipeline (10,11,12) order UNICOM successively; The top gas side of said high pressure low temperature storage tank (4), low-temperature expansion unit (6), cryogenic heat exchanger (3), cold storage apparatus (2) are through pipeline (13,15,16,17) order UNICOM successively, and the pipeline (13) between said low-temperature expansion unit (6) and the high pressure low temperature storage tank (4) is provided with regulating valve I (14);
Said releasing can comprise from compress cell and acting unit by subtense angle; Wherein, Saidly comprise automatic pressure intensifier (5) from compress cell; Said automatic pressure intensifier (5) one ends connect the bottom liquid side of said high pressure low temperature storage tank (4), and the other end connects the top gas side of said high pressure low temperature storage tank (4), and the pipeline between the bottom liquid side of said automatic pressure intensifier (5) and high pressure low temperature storage tank (4) is provided with regulating valve II (19); In the said acting unit; The bottom liquid side of said high pressure low temperature storage tank (4), cold storage apparatus (2), accumulation of heat/heat exchanger (7; 7'), main expansion unit (8) connects through pipeline (20,22,23) successively; Pipeline (20) between the bottom liquid side of said high pressure low temperature storage tank (4) and the cold storage apparatus (2) is provided with regulating valve III (21), and said main expansion unit (8) drives generator (24).
2. the energy storage of high-pressure liquid air stored energy according to claim 1/release the ability system is characterized in that,
Its energy storage flow process is:
Utilize driver element (9) drive compression unit (1), air in certain amount is compressed to the normal temperature high voltage state; The normal temperature high voltage air gets into cooling in the cold storage apparatus (2), and high-pressure air process cold storage apparatus (2) and cryogenic heat exchanger (3) back temperature are reduced to and become the high pressure low temperature liquid air below the condensing temperature; The high pressure low temperature liquid air gets into high pressure low temperature storage tank (4) storage; Meanwhile the inner gaseous state high-pressure air of high pressure low temperature storage tank (4) produces cryogenic cold energy through low-temperature expansion unit (6) back of expanding, and through cryogenic heat exchanger (3) cold energy is passed to the high-pressure air of main road, and discharges through cold storage apparatus (2) and to remain cold energy;
It is released and can flow process be:
Automatic pressure intensifier (5) makes the operative liquid air gasification make high pressure low temperature storage tank (4) supercharging through heat absorption; The high-pressure liquid air is warming up to the normal temperature high voltage state and reclaims cold energy in cold storage apparatus (2); At accumulation of heat/heat exchanger (7; Absorb heat 7') high-pressure air is further heated up, get into main expansion unit (8) expansion acting then, drive generator (24) generating.
3. high-pressure liquid air according to claim 1 and 2 energy storage/release the ability system, it is characterized in that: said automatic pressure intensifier (5) is processed by metal coil pipe or fin tube, and heat medium is water or air.
4. high-pressure liquid air according to claim 1 and 2 energy storage/release the ability system is characterized in that: said high pressure low temperature storage tank (4), be high pressure Dewar storage tank or high pressure low temperature storage tank, and liquid air stores under the mesohigh situation, and pressure is more than the 3.8MPa.
5. high-pressure liquid air according to claim 1 and 2 energy storage/release the ability system, it is characterized in that: said driver element (9) is drive motor or wind energy conversion system; During for drive motor, be with conventional power plant low ebb electricity, nuclear power, wind-powered electricity generation, solar electrical energy generation, water power or tidal power generation one or more power supplys wherein.
6. high-pressure liquid air according to claim 1 and 2 energy storage/release can system; It is characterized in that: said accumulation of heat/heat exchanger (7) interlinks through pipeline (26) and solar thermal collector or industrial exhaust heat/waste heat fluid; Form the heat-carrying circulation loop, waste heat, used heat or solar energy heating are stored in accumulation of heat/heat exchanger (7) are used for the heating high-pressure air.
7. high-pressure liquid air according to claim 1 and 2 energy storage/release the ability system is characterized in that: in the said energy storage subtense angle, the high-pressure air that said compressor bank (1) produces gets into cold storage apparatus (2) after said accumulation of heat/heat exchanger (7') cooling.
8. high-pressure liquid air according to claim 7 energy storage/release can system; It is characterized in that: said releasing can also comprise high-temperature heat accumulation/heat exchanger (7 "); (7 ") back gets into said main expansion unit (8) to the high-pressure air after said accumulation of heat/heat exchanger (7') heating through said high-temperature heat accumulation/heat exchanger in the subtense angle; (7 ") are waste heat/waste heat exchanger to said high-temperature heat accumulation/heat exchanger; interlink through pipeline (26) and solar thermal collector or industrial exhaust heat/waste heat fluid, through the direct heating high-pressure air of waste heat/waste heat exchanger, improve the temperature of the preceding high-pressure air of into main expansion unit (8).
9. high-pressure liquid air according to claim 1 and 2 energy storage/release the ability system is characterized in that: also comprise air purification and purifying in air compression, the cooling procedure, remove airborne solid matter and foreign gas; Air purification and purifier apparatus are integrated in said compressor bank (1) and/or the cold storage apparatus (2).
10. high-pressure liquid air according to claim 1 and 2 energy storage/release can system; It is characterized in that: said compressor bank (1); Overall pressure tatio is between 36～340, and when being multiple compressors, multiple compressors is coaxial series connection form or split axle parallel form; In the parallel form, each split axle and main driving axle are dynamically connected; Said main expansion unit (8), overall expansion ratio are between 38～340, and the exhaust of final stage decompressor is near normal pressure; When being many decompressors; Many decompressors are coaxial series connection form or split axle parallel form, and in the parallel form, each split axle and main driving axle are dynamically connected; The air inlet of decompressors at different levels all pass through earlier accumulation of heat/heat exchanger (7,7') heat temperature raising.
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