CN106677848A - Joint energy storage system and method with air and water as energy storage working media - Google Patents
Joint energy storage system and method with air and water as energy storage working media Download PDFInfo
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- CN106677848A CN106677848A CN201611246501.3A CN201611246501A CN106677848A CN 106677848 A CN106677848 A CN 106677848A CN 201611246501 A CN201611246501 A CN 201611246501A CN 106677848 A CN106677848 A CN 106677848A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/004—Valve arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a joint energy storage system and method with air and water as energy storage working media. The system comprises an air compression energy storage unit, an air expansion energy release unit, a water energy storage unit, a water energy release unit, an energy release logic judgment unit and a heat storage circulation loop. According to the system and method, based on optimal matching of an air and water joint containing cabin and a heat storage/heat exchange device, by means of the acting characteristic of compressible/incompressible fluid, pressure energy stored by high-pressure air is released in a staged manner for continuous power generation; a water turbine is preferentially utilized for release power generation, acting is achieved through an air expander after residual pressure air absorbs compression heat, and classification gradient efficient utilization of pressure energy and heat energy stored in the compression energy storage process is achieved; and compared with the traditional compression air energy storage technology, according to the system and method, the electric conversion efficiency of the energy storage system and the fast response capacity to power grid control are effectively improved, supplemental combustion and contamination are avoided, and an effective path of achieving clean, efficient and economical large-scale energy storage is achieved.
Description
Technical field
The invention belongs to large-scale electric energy physics energy storage field, more particularly to one kind are based on compressed air energy storage technology,
Be combined with water accumulation of energy/release can mode realize it is extensive, efficiently combine energy-storage system.
Background technology
From the point of view of current Sci-Tech Level, compressed air energy storage technology (CAES) and water-storage technology are can be real
Show the only two kinds of technologies of electric energy large scale storage.Compressed air energy storage technology has abroad application and the development of more than 30 years
History, today is still in safe operation.Representing power station has the Alabama Utilities Electric Co. in the U.S. at Macintosh (McIntosh)
Compressed-air energy storage power station and the Huntorf compressed-air energy storages power station of Germany that area is built.
According to the technical characterstic and developing history of external compressed-air energy storage Power Plant Thermal System, it is with gas turbine technology
Based on.Cardinal principle is using the electric power more than needed of power plant air to be compressed and is stored in underground gas storage room, works as needs
When pressure-air is discharged again, externally done work using turbine.Existing compressed-air energy-storage system generally requires afterburning, though or can
With not afterburning, but low temperature (- 150 DEG C or so) need to be expanded under normal temperature and pressure state using compressed air, this causes system
Gross energy conversion efficiency is low, less economical, response time is slow.
The features such as water-storage technology has high conversion efficiency, response time is fast, but geographical environment addressing requirement is gone up over the ground
It is harsh.
The content of the invention
It is an object of the invention to provide it is a kind of with air and water as the joint energy-storage system of energy storage working medium and method, to solve
Certainly conventional compression air energy storage response time is slow, the problem that electric energy conversion efficiency is low；The present invention is with compressed air energy storage technology
Basis, be combined with water accumulation of energy/release can mode realize extensive, efficient joint energy storage；Present invention achieves to energy
Classified use, and should not afterburning, pollution-free.
To achieve these goals, the present invention is adopted the following technical scheme that：
It is a kind of with air and water as the joint energy-storage system of energy storage working medium, including air compressed energy-storage unit, air expansion
Releasing unit, water energy-storage units, water releasing unit, releasing can logic judgment unit and thermmal storage closed circuit；
Air compressed energy-storage unit includes compressor bank and drives the compressor bank motor of compressor bank；Compressor bank goes out
Mouth connection underground Large-scale High-Pressure gas storage ore deposit hole；
Air expansion releasing unit includes the expansion set generator of expansion unit and connection expansion unit；
Water energy-storage units include water pump assembly, water pump assembly motor and water storage ore deposit hole side controlled valve, wherein, water pump assembly
Import connected with Large Underground normal pressure water storage ore deposit hole bottom by water storage ore deposit hole side controlled valve, the outlet of water pump assembly passes through
Pipeline stores up altogether ore deposit hole top and connects with Large Underground high pressure gas and water；Water pump assembly connects water pump assembly motor；
Water releasing unit stores up altogether ore deposit hole side controlled valve including water turbine units, water turbine units electromotor and gas and water, its
In, the import of the hydraulic turbine is stored up altogether ore deposit hole side controlled valve and is stored up altogether under ore deposit hole with Large Underground high pressure gas and water by pipeline and gas and water
Portion connects, and the outlet of water turbine units is connected by pipeline with underground Large-scale High-Pressure gas storage ore deposit hole top；Water turbine units connect
Water turbine units electromotor；
Releasing energy logic judgment unit includes logical judgment controller, logic linkage gas circuit valve and logic linkage water route valve
Door；Logic links gas circuit valve by pipeline connection underground Large-scale High-Pressure gas storage ore deposit hole and expansion unit；Logic linkage water route valve
Door connects underground Large-scale High-Pressure gas storage ore deposit hole by pipeline and Large Underground high pressure gas and water stores up altogether ore deposit hole；Logical judgment controller
Connect pressure-signal of telecommunication transmitter, logic linkage gas circuit valve and the logic linkage water route valve in underground Large-scale High-Pressure gas storage ore deposit hole
Door；Logical judgment controller is used to be carried out with the pressure value in the Large-scale High-Pressure gas storage ore deposit hole of underground according to the switching pressure value of setting
Logical judgment, control logic linkage gas circuit valve and logic linkage Water path valve folding；
Thermmal storage closed circuit, the heat produced during for storing air compressed energy-storage cell compression air, and in air
When expansion releasing unit works, the air of the heat driven that releases energy air expansion releasing unit work.
Further, thermmal storage closed circuit includes low-pressure stage cooler, medium pressure grade cooler, hiigh pressure stage cooler, low
Arbitrarily downgrade heat exchanger, medium pressure grade heat exchanger, hiigh pressure stage heat exchanger, phase change heat accumulator and circulating pump；Heat-carrying agent in phase change heat accumulator
Circulating pump is entered by cold side outlet Jing pipelines and the 4th valve, then passes through low-pressure stage cooler, middle pressure respectively Jing after the 5th valve
Jing pipelines and the second check valve are back to the hot-side inlet of phase change heat accumulator behind level cooler, the cold flow side of hiigh pressure stage cooler
And stored the heat of compression, the heat-carrying agent in thermophore is exported by the road by hot junction and the 3rd valve is defeated by circulating pump
Send, Jing pipes behind the hot-fluid side of low-pressure stage heat exchanger, medium pressure grade heat exchanger, hiigh pressure stage heat exchanger are each led into Jing after the 6th valve
Road and the 3rd check valve enter phase change heat accumulator cold-side inlet.
Further, compressor bank includes low-pressure stage compressor, medium pressure grade compressor and the hiigh pressure stage compression being sequentially connected in series
Machine；The air inlet of low-pressure stage compressor passes through low pressure by pipeline and atmosphere, the medium pressure gas that low-pressure stage compressor is produced
After level cooler heat exchange, Jing gas pipings are passed through the air inlet of medium pressure grade compressor；The medium pressure gas that medium pressure grade compressor is produced
Through after the heat exchange of medium pressure grade cooler, Jing gas pipings are passed through the air inlet of high pressure stage compressor；What high pressure stage compressor was produced
Through after the heat exchange of hiigh pressure stage cooler, Jing gas pipings and the first valve are passed through the storage of underground Large-scale High-Pressure gas storage ore deposit hole to gases at high pressure
Deposit.
Further, low-pressure stage decompressor, medium pressure grade decompressor and hiigh pressure stage expansion that unit includes being sequentially connected in series are expanded
Machine；The air inlet of hiigh pressure stage decompressor is by pipeline, high pressure heat exchanger, throttling controlling valve and logic linkage gas circuit valve and ground
Lower Large-scale High-Pressure gas storage ore deposit hole connection, after the medium pressure gas that hiigh pressure stage decompressor is produced exchange heat through middle pressure heat exchanger, Jing gases
Pipeline is passed through the air inlet of medium pressure grade decompressor；The medium pressure gas that medium pressure grade decompressor is produced exchange heat through low-pressure stage heat exchanger
Afterwards, Jing gas pipings are passed through the air inlet of the low-pressure stage decompressor；The atmosphere gas that low-pressure stage decompressor is produced, Jing gas tubes
Road is passed through air；Expansion unit electrical power generators are driven in the expansion unit course of work.
Further, low-pressure stage compressor, medium pressure grade compressor and high pressure stage compressor are driven by compressor bank motor coaxle
It is dynamic；Low-pressure stage decompressor, medium pressure grade decompressor and hiigh pressure stage decompressor Driven by Coaxial expansion set generator.
Further, the bottom in underground Large-scale High-Pressure gas storage ore deposit hole and Large Underground high pressure gas and water store up altogether the top in ore deposit hole
Between also by the pipeline communication with the second valve and check valve.
Further, the top in Large Underground normal pressure water storage ore deposit hole keeps valve and atmosphere by pipeline and normal pressure.
Further, the pipeline that logic linkage Water path valve and Large Underground high pressure gas and water are stored up altogether between ore deposit hole is provided with
Throttling controlling valve.
It is a kind of with air and water as the joint energy storage method of energy storage working medium, based on described one kind with air and water as energy storage
The joint energy-storage system of working medium, comprises the following steps：
The energy storage stage：Air compressed energy-storage unit utilizes electric energy compressed air, and it is large-scale that compressed air is stored in into underground
High-pressure gas ore deposit carries out air energy storage in hole, makes the pressure in the Large-scale High-Pressure gas storage ore deposit hole of underground higher than the switching pressure of setting
Value；Water energy-storage units utilize electric energy, by water pump assembly that the water suction Large Underground in Large Underground normal pressure water storage ore deposit hole is high
Pressure gas and water is stored up enter water-filling energy storage in ore deposit hole altogether；
Releasing can the first stage：Logical judgment controller judges that the pressure value in the Large-scale High-Pressure gas storage ore deposit hole of underground is more than setting
Switching pressure value, control control logic linkage gas circuit valve closure, logic linkage Water path valve opens；Underground Large-scale High-Pressure storage
Pressure-air in gas ore deposit hole is constant pressure air through logic linkage Water path valve and throttling controlling valve reducing pressure by regulating flow, is pushed away
Dynamic Large Underground high pressure gas and water is stored up altogether water Jing pipelines in ore deposit hole and promotes water turbine units acting, drives water turbine units electromotor；
Water turbine units go out saliva Jing pipelines and are back to Large Underground normal pressure water storage ore deposit hole；
Releasing can second stage：Logical judgment controller detect pressure value in the Large-scale High-Pressure gas storage ore deposit hole of underground be less than or
Equal to the switching pressure value of setting, control control logic linkage gas circuit valve is opened；Height in the Large-scale High-Pressure gas storage ore deposit hole of underground
Pressure air expands the decompressor of releasing unit through logic linkage gas circuit valve and throttling controlling valve reducing pressure by regulating flow, air inlet
Group drives expansion unit electrical power generators, when the generating of unit working stability is expanded, closes logic linkage Water path valve, the hydraulic turbine
Compressor emergency shutdown；
Wherein, the heat for producing during energy storage stage air compressed energy-storage cell compression air is stored in thermmal storage closed circuit
Thermophore in, and when air expansion releasing unit works, discharge heat and drive the work of air expansion releasing unit
Air.
It is a kind of with air and water as the joint energy storage method of energy storage working medium, comprise the following steps：
The energy storage stage：Using electric energy compressed air, and compressed air is stored in the Large-scale High-Pressure gas storage ore deposit hole of underground
Row air energy storage, makes the pressure in the Large-scale High-Pressure gas storage ore deposit hole of underground higher than the switching pressure value of setting；Pass through water using electric energy
Water suction Large Underground high pressure gas and water in Large Underground normal pressure water storage ore deposit hole is stored up altogether and enters water-filling energy storage in ore deposit hole by pump assembly；
Releasing can the first stage：Judge switching pressure value of the pressure value in the Large-scale High-Pressure gas storage ore deposit hole of underground more than setting,
Make the pressure-air in the Large-scale High-Pressure gas storage ore deposit hole of underground be constant pressure air through throttling controlling valve reducing pressure by regulating flow, promote
Large Underground high pressure gas and water is stored up altogether water Jing pipelines in ore deposit hole and promotes water turbine units acting, drives water turbine units electromotor；Water
Turbine machine set outlet water Jing pipelines are back to Large Underground normal pressure water storage ore deposit hole；
Releasing can second stage：Detect switching of the pressure value in the Large-scale High-Pressure gas storage ore deposit hole of underground less than or equal to setting
During pressure value；Pressure-air in control underground Large-scale High-Pressure gas storage ore deposit hole through throttling controlling valve reducing pressure by regulating flow, into swollen
Swollen unit drives expansion unit electrical power generators, when the generating of unit working stability is expanded, closes water turbine units power generation circuit；
Wherein, the heat for producing during energy storage stage compression air is stored in the thermophore of thermmal storage closed circuit, and
When expansion unit drives expansion unit electrical power generators, the air that heat drives expansion unit work is discharged.
Relative to prior art, the invention has the advantages that：
Optimized Matching of the present invention based on the encompassing cabin of gas and water and accumulation of heat/heat exchanger, using compression (air)/can not press
The acting characteristic of contracting fluid (), the pressure energy that pressure-air is stored preferentially is discharged using the hydraulic turbine, and remaining air with pressure is inhaled
Receive after the heat of compression again by air expander acting, realize pressure energy, the classification step of heat energy stored up during compressed energy-storage
Efficient utilization, compares conventional compression air energy storage technology, and the present invention effectively increases the photoelectric transformation efficiency of energy-storage system and to electricity
The capability of fast response of net regulation and control, it is of no help it is right, pollution-free, be realize cleaning, efficiently, the effective way of economic extensive energy storage.
The present invention effectively improves the photoelectric transformation efficiency of energy-storage system, up to more than 65%.10% or so can be higher by compared to prior art.
The present invention is directed to the large-scale exhaustion ore deposit hole in south China underground, such as slate ore deposit hole, Gypsum Fibrosum stone ore hole etc., with very
Close gas, water-resisting property and resistance to pressure, can be used as pressure-air storage and the excellent container of water storage.Propose compressed-air energy storage with
The high efficiency composition system of water-storage coupling, it is not necessary to the afterburning of compressed-air energy-storage system and the dam of water-storage.
Description of the drawings
Fig. 1 is that the present invention is a kind of with air and water as the structural representation of the joint energy-storage system of energy storage working medium；
In figure：1 low-pressure stage compressor, 2 medium pressure grade compressors, 3 high pressure stage compressors, 4 compressor bank motors, 5 low-pressure stages
Cooler, 6 medium pressure grade coolers, 7 hiigh pressure stage coolers, 8 first valves, 9 pressure gauges, 10 thermophores, 11, low-pressure stage expansion
Machine, 12 medium pressure grade decompressors, 13 hiigh pressure stage decompressors, 14 low-pressure stage heat exchangers, 15 medium pressure grade heat exchangers, the heat exchange of 16 hiigh pressure stages
Device, 17 expansion set generators, 18 pressure gauges, 19 throttling controlling valves, 20 logics linkage gas circuit valve, 21 underground Large-scale High-Pressures
Gas storage ore deposit hole, 22 logics linkage Water path valve, 23 logical judgment controllers, 24 throttling controlling valves, 25 first check valves, 26 the
Two valves, 27 Large Underground high pressure gas and waters store up altogether ore deposit hole, and 28 gas and waters store up altogether ore deposit hole side controlled valve, 29 water turbine units, and 30
Water turbine units electromotor, 31 water pump assemblies, 32 water pump assembly motors, 33 water storage ore deposit hole side controlled valves, 34 Large Undergrounds are normal
Pressure water storage ore deposit hole, 35 normal pressures keep valve, 36 second check valves, 37 the 3rd check valves, 38 the 3rd valves, 39 the 4th valves, and 42 the
Five valves, 43 the 6th valves, 40 circulating pumps, 41 circulating pump motors.
Specific embodiment
Purpose, technical scheme and advantage to make this energy-storage system becomes more apparent, referring to the drawings, to the present invention
Further describe.
Refer to shown in Fig. 1, the present invention discloses a kind of with air and water as the joint energy-storage system of energy storage working medium, including sky
Air pressure contracting energy-storage units, air expansion releasing unit, energy-storage units, water releasing unit, release can logic judgment unit and heat storage
Deposit closed circuit.
Air compressed energy-storage unit and water energy-storage units include underground Large-scale High-Pressure gas storage ore deposit hole 21, Large Underground high pressure
Gas and water stores up altogether ore deposit hole 27 and Large Underground normal pressure water storage ore deposit hole 34.
Air compressed energy-storage unit includes compressor bank and drives the compressor bank motor 4 of compressor bank；Compressor bank bag
Include low-pressure stage compressor 1, medium pressure grade compressor 2 and the high pressure stage compressor 3 being sequentially connected in series.The air inlet of low-pressure stage compressor 1
By pipeline and atmosphere, after the medium pressure gas that low-pressure stage compressor 1 is produced are exchanged heat by low-pressure stage cooler 5, Jing gases
Pipeline is passed through the air inlet of medium pressure grade compressor 2；The medium pressure gas that medium pressure grade compressor 2 is produced are changed through medium pressure grade cooler 6
After heat, Jing gas pipings are passed through the air inlet of high pressure stage compressor 3；The gases at high pressure that high pressure stage compressor 3 is produced pass through high pressure
After level cooler 7 exchanges heat, Jing gas pipings and the first valve 8 are passed through underground Large-scale High-Pressure gas storage ore deposit hole 21 and store.
Releasing energy logic judgment unit includes logical judgment controller 23, logic linkage gas circuit valve 20 and logic linkage water route
Valve 22；Pressure-the signal of telecommunication transmitter in the connection of logical judgment controller 23 underground Large-scale High-Pressure gas storage ore deposit hole 21, logic linkage
Gas circuit valve 20 and logic linkage Water path valve 22；Logical judgment controller 23 judges that underground Large-scale High-Pressure gas storage ore deposit hole 21 is intrinsic pressure
The size variation of force value, such as when being down to 40bar by maximum pressure 50bar, select to close logic linkage Water path valve 22, while
Logic linkage gas circuit valve 20 is opened, when logical judgment controller 23 judges that pressure enters one in underground Large-scale High-Pressure gas storage ore deposit hole 21
Step declines, such as when being down to 30bar by 40bar, close logic linkage gas circuit valve 20.
Air expansion releasing unit includes the expansion set generator 17 of expansion unit and connection expansion unit；Expansion unit
Including the low-pressure stage decompressor 11, medium pressure grade decompressor 12 and hiigh pressure stage decompressor 13 that are sequentially connected in series；Hiigh pressure stage decompressor 13
Air inlet is by pipeline, high pressure heat exchanger 16, throttling controlling valve 19 and logic linkage gas circuit valve 20 and underground Large-scale High-Pressure
Gas storage ore deposit hole 21 connects, after the medium pressure gas that hiigh pressure stage decompressor 13 is produced exchange heat through middle pressure heat exchanger 15, Jing gas pipings
It is passed through the air inlet of medium pressure grade decompressor 12；The medium pressure gas that medium pressure grade decompressor 12 is produced exchange heat through low-pressure stage heat exchanger 14
Afterwards, Jing gas pipings are passed through the air inlet of the low-pressure stage decompressor 11；The atmosphere gas that low-pressure stage decompressor 11 is produced, Jing gas
Body pipeline is passed through air.
Thermmal storage closed circuit includes that low-pressure stage cooler 5, medium pressure grade cooler 6, hiigh pressure stage cooler 7, low-pressure stage are changed
Hot device 14, medium pressure grade heat exchanger 15, hiigh pressure stage heat exchanger 16, phase change heat accumulator 10 and circulating pump 40；Carry in phase change heat accumulator 10
Thermal medium enters circulating pump 40 by cold side outlet Jing pipelines and the 4th valve 39, then passes through low-pressure stage respectively Jing after the 5th valve 42
Jing pipelines and the second check valve 36 are back to phase transformation behind cooler 5, medium pressure grade cooler 6, the cold flow side of hiigh pressure stage cooler 7
The hot-side inlet of thermophore 10 is simultaneously stored the heat of compression, and the heat-carrying agent in thermophore 10 is exported by the road and the by hot junction
Three valves 38 are conveyed by circulating pump 40, each lead into Jing after the 6th valve 43 low-pressure stage heat exchanger 14, medium pressure grade heat exchanger 15,
Jing pipelines and the 3rd check valve 37 enter the cold-side inlet of phase change heat accumulator 10 behind the hot-fluid side of hiigh pressure stage heat exchanger 16.
Water energy-storage units include water pump assembly 31, water pump assembly motor 32 and water storage ore deposit hole side controlled valve 33, wherein, water
The import of pump assembly 31 is connected by water storage ore deposit hole side controlled valve 33 with the bottom of Large Underground normal pressure water storage ore deposit hole 34, water pump machine
The outlet of group 31 is stored up altogether the top of ore deposit hole 27 and is connected by pipeline with Large Underground high pressure gas and water.Water pump assembly 31 connects water pump machine
Group motor 32.
Water releasing unit stores up altogether ore deposit hole side switch valve including water turbine units 29, water turbine units electromotor 30 and gas and water
Door 28, wherein, the import of water turbine units 29 stores up altogether ore deposit hole side controlled valve 28 and Large Underground high pressure by pipeline, gas and water
Gas and water stores up altogether the connection of the bottom of ore deposit hole 27, and the outlet of water turbine units 29 is by pipeline and underground Large-scale High-Pressure gas storage ore deposit hole 34
Portion connects.The connection water turbine units of water turbine units 29 electromotor 30.
The present invention is a kind of with air and water as the thermal energy storage process of the joint energy-storage system of energy storage working medium：
Compressor bank outlet main pipeline on the first valve 8 open, ambient air Jing filter, be dried after, into low pressure
Level compressor 1 is compressed.
Low-pressure stage compressor 1, medium pressure grade compressor 2, high pressure stage compressor 3 is coaxial Compressor Group by compressor bank electricity
Machine 4 drives.The electric energy of motor may be from the regenerative resources such as electrical network electric power, trough electric power or wind energy more than needed.Jing low-pressure stage pressures
After contracting machine 1 compresses, the temperature of air, pressure rise cool through low-pressure stage cooler 5, enter into medium pressure grade compressor 2
One step is compressed, and pressure is further raised, and temperature is raised, and is cooled through medium pressure grade cooler, is pressed through high pressure stage compressor 3
After contracting, pressure is further raised, and Jing hiigh pressure stage coolers cool, and normal temperature high voltage air Jing pipelines and the first valve 8 are entered
Underground Large-scale High-Pressure gas storage ore deposit hole 21 is stored, and the gas storage time determines that gas storage is complete according to gas and water joint energy-storage system scale
Valve 8 is closed after finishing.
During the compressed unit storage pressure-air of system, gas Jing low-pressure stages cooler 5, medium pressure grade cooler 6,
After hiigh pressure stage cooler 7 is cooled down, heat of compression Jing heat-carrying agent is stored in phase change heat accumulator 10 by circulation line and valve.
While air energy storage is compressed in this system, water-filling accumulation of energy process can be entered.Unlatching normal pressure holding valve 35,
Water storage ore deposit hole side controlled valve 33 and the second valve 26, water pump assembly motor 32 drive water pump assembly 31 with a certain head for example
50bar, is drawn water by Large Underground normal pressure water storage ore deposit hole 34, and into Large Underground high pressure gas and water ore deposit hole 27, the electricity of motor are stored up altogether
The regenerative resources such as electrical network electric power, trough electric power or wind energy more than needed can be may be from.Ore deposit hole is stored up altogether into Large Underground high pressure gas and water
27 hydraulic pressure contracting hole internal upper part space air is high when pressure in air pressure value descends above Ground Large-scale High-Pressure gas storage ore deposit hole 21
Body of calming the anger is entered in underground Large-scale High-Pressure gas storage ore deposit hole 21, until pressure is equal by the second valves of pipeline Jing 26 and check valve 25
First check valve 25 is closed, water accumulation of energy basis of time gas and water joint energy-storage system scale, water storage cave size and economy
Together decide on.After water accumulation of energy is finished, the second valve 26 and water storage ore deposit hole side controlled valve 33 are closed.
Exoergic process：
When electrical network has need for electricity, logical judgment controller 23 is arranged on underground Large-scale High-Pressure by receiving in this system
The information of the pressure on the hole wall of gas storage ore deposit hole 21-signal of telecommunication transmitter transmission, opens successively logic linkage Water path valve 22, gas,
Water stores up altogether ore deposit hole side controlled valve 28, and the pressure-air (such as 50bar) in underground Large-scale High-Pressure gas storage ore deposit hole 21 is through throttling
The reducing pressure by regulating flow of controlling valve 24 is constant pressure air (such as 40bar), promotes Large Underground high pressure gas and water to store up altogether in ore deposit hole 27
Water Jing pipelines and gas and water are stored up altogether ore deposit hole side controlled valve 28 and promote water turbine units 29 to do work, and drive water turbine units electromotor
30 generate electricity, and are input into electrical network.Water turbine units go out saliva Jing pipelines and are back to Large Underground normal pressure water storage ore deposit hole 34.
When gas pressure is down to 40bar in underground Large-scale High-Pressure gas storage ore deposit hole 21, logical judgment controller 23 is opened and patrolled
Volume linkage gas circuit valve 20, when expanding unit working stability and generating electricity, closes logic linkage Water path valve 22, water turbine units 29
Shut down.
The reducing pressure by regulating flow of pressure-air (40bar) warp knuckle stream controlling valve 19 is 30bar, is heated up into hiigh pressure stage heat exchanger 16
Lower the temperature into the blood pressure lowering of hiigh pressure stage decompressor 13 afterwards, then Jing after medium pressure grade heat exchanger 15 heats up into the blood pressure lowering of medium pressure grade decompressor 12 drop
Wen Hou, Jing after low-pressure stage heat exchanger 14 heats up, is reduced to normal pressure and temperature air and enters air into low-pressure stage decompressor 11.This process
The heat that heat-carrying agent is carried in heat exchangers at different levels is from thermophore 10.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of with air and water as the joint energy-storage system of energy storage working medium, it is characterised in that including air compressed energy-storage unit,
Air expansion releasing unit, water energy-storage units, water releasing unit, releasing can logic judgment unit and thermmal storage closed circuit；
Air compressed energy-storage unit includes compressor bank and drives the compressor bank motor (4) of compressor bank；Compressor bank goes out
Mouth connection underground Large-scale High-Pressure gas storage ore deposit hole (21)；
Air expansion releasing unit includes the expansion set generator (17) of expansion unit and connection expansion unit；
Water energy-storage units include water pump assembly (31), water pump assembly motor (32) and water storage ore deposit hole side controlled valve (33), wherein,
The import of water pump assembly (31) is connected by water storage ore deposit hole side controlled valve (33) with Large Underground normal pressure water storage ore deposit hole (34) bottom
Logical, the outlet of water pump assembly (31) is stored up altogether ore deposit hole (27) top and is connected by pipeline with Large Underground high pressure gas and water；Water pump assembly
(31) water pump assembly motor (32) is connected；
Water releasing unit stores up altogether ore deposit hole side switch valve including water turbine units (29), water turbine units electromotor (30) and gas and water
Door (28), wherein, the import of the hydraulic turbine (29) stores up altogether ore deposit hole side controlled valve (28) with Large Underground height by pipeline and gas and water
Pressure gas and water stores up altogether the connection of ore deposit hole (27) bottom, and the outlet of water turbine units (29) is by pipeline and underground Large-scale High-Pressure gas storage ore deposit
Hole (34) top connects；Water turbine units (29) connection water turbine units electromotor (30)；
Releasing energy logic judgment unit includes logical judgment controller (23), logic linkage gas circuit valve (20) and logic linkage water route
Valve (22)；Logic linkage gas circuit valve (20) connects underground Large-scale High-Pressure gas storage ore deposit hole (21) and expansion unit by pipeline；
Logic linkage Water path valve (22) connects underground Large-scale High-Pressure gas storage ore deposit hole (21) by pipeline and Large Underground high pressure gas and water is common
Storage ore deposit hole (27)；Pressure-the signal of telecommunication transmitter of logical judgment controller (23) connection underground Large-scale High-Pressure gas storage ore deposit hole (21),
Logic linkage gas circuit valve (20) and logic linkage Water path valve (22)；Logical judgment controller (23) is for cutting according to setting
Change pressure value carries out logical judgment, control logic linkage gas circuit valve with the pressure value in underground Large-scale High-Pressure gas storage ore deposit hole (21)
(20) and logic linkage Water path valve (22) folding；
Thermmal storage closed circuit, the heat produced during for storing air compressed energy-storage cell compression air, and in air expansion
When releasing unit works, the air of the heat driven that releases energy air expansion releasing unit work.
2. it is according to claim 1 a kind of with air and water as the joint energy-storage system of energy storage working medium, it is characterised in that heat
Storage closed circuit includes low-pressure stage cooler (5), medium pressure grade cooler (6), hiigh pressure stage cooler (7), low-pressure stage heat exchanger
(14), medium pressure grade heat exchanger (15), hiigh pressure stage heat exchanger (16), phase change heat accumulator (10) and circulating pump (40)；Phase change heat accumulator
(10) in heat-carrying agent by cold side outlet Jing pipelines and the 4th valve (39) into circulating pump (40), then Jing after the 5th valve (42)
Jing pipelines and behind low-pressure stage cooler (5), medium pressure grade cooler (6), the cold flow side of hiigh pressure stage cooler (7) respectively
Two check valves (36) are back to the hot-side inlet of phase change heat accumulator (10) and are stored the heat of compression, the load in thermophore (10)
Thermal medium is exported by the road by hot junction and the 3rd valve (38) is conveyed by circulating pump (40), leads to respectively Jing after the 6th valve (43)
Enter Jing pipelines and the 3rd behind low-pressure stage heat exchanger (14), medium pressure grade heat exchanger (15), the hot-fluid side of hiigh pressure stage heat exchanger (16)
Check valve (37) is into phase change heat accumulator (10) cold-side inlet.
3. it is according to claim 2 a kind of with air and water as the joint energy-storage system of energy storage working medium, it is characterised in that pressure
Contracting unit includes low-pressure stage compressor (1), medium pressure grade compressor (2) and the high pressure stage compressor (3) being sequentially connected in series；Low-pressure stage pressure
The air inlet of contracting machine (1) is cooled down by pipeline and atmosphere, the medium pressure gas that low-pressure stage compressor (1) is produced by low-pressure stage
After device (5) heat exchange, Jing gas pipings are passed through the air inlet of medium pressure grade compressor (2)；Medium pressure grade compressor (2) is calmed the anger in producing
Through after medium pressure grade cooler (6) heat exchange, Jing gas pipings are passed through the air inlet of high pressure stage compressor (3) to body；Hiigh pressure stage is compressed
Through after hiigh pressure stage cooler (7) heat exchange, Jing gas pipings and the first valve (8) are passed through underground to the gases at high pressure that machine (3) is produced
Large-scale High-Pressure gas storage ore deposit hole (21) is stored.
4. it is according to claim 3 a kind of with air and water as the joint energy-storage system of energy storage working medium, it is characterised in that swollen
Swollen unit includes low-pressure stage decompressor (11), medium pressure grade decompressor (12) and the hiigh pressure stage decompressor (13) being sequentially connected in series；High pressure
The air inlet of level decompressor (13) is by pipeline, high pressure heat exchanger (16), throttling controlling valve (19) and logic linkage gas circuit valve
Door (20) is connected with underground Large-scale High-Pressure gas storage ore deposit hole (21), and the medium pressure gas that hiigh pressure stage decompressor (13) is produced are changed through middle pressure
After hot device (15) heat exchange, Jing gas pipings are passed through the air inlet of medium pressure grade decompressor (12)；What medium pressure grade decompressor (12) was produced
Through after low-pressure stage heat exchanger (14) heat exchange, Jing gas pipings are passed through the air inlet of the low-pressure stage decompressor (11) to medium pressure gas
Mouthful；The atmosphere gas that low-pressure stage decompressor (11) is produced, Jing gas pipings are passed through air；Drive in the expansion unit course of work swollen
Swollen set generator (17) generates electricity.
5. it is according to claim 4 a kind of with air and water as the joint energy-storage system of energy storage working medium, it is characterised in that low
Compressor (1), medium pressure grade compressor (2) and high pressure stage compressor (3) arbitrarily downgrade by compressor bank motor (4) Driven by Coaxial；Low pressure
Level decompressor (11), medium pressure grade decompressor (12) and hiigh pressure stage decompressor (13) Driven by Coaxial expansion set generator (17).
6. it is according to claim 1 a kind of with air and water as the joint energy-storage system of energy storage working medium, it is characterised in that ground
The bottom of lower Large-scale High-Pressure gas storage ore deposit hole (21) and Large Underground high pressure gas and water are stored up also pass through between the top of ore deposit hole (27) band altogether
There is the pipeline communication of the second valve (26) and check valve (25).
7. it is according to claim 1 a kind of with air and water as the joint energy-storage system of energy storage working medium, it is characterised in that big
The top of type underground normal pressure water storage ore deposit hole (34) keeps valve (35) and atmosphere by pipeline and normal pressure.
8. it is according to claim 1 a kind of with air and water as the joint energy-storage system of energy storage working medium, it is characterised in that to patrol
Volume linkage Water path valve (22) and the pipeline that stores up altogether between ore deposit hole (27) of Large Underground high pressure gas and water are provided with throttling controlling valve
(24)。
9. it is a kind of with air and water as the joint energy storage method of energy storage working medium, it is characterised in that to appoint based in claim 1 to 8
It is a kind of with air and water as the joint energy-storage system of energy storage working medium described in one, comprise the following steps：
The energy storage stage：Air compressed energy-storage unit utilizes electric energy compressed air, and compressed air is stored in into underground Large-scale High-Pressure
Air energy storage is carried out in gas storage ore deposit hole (21), the pressure in underground Large-scale High-Pressure gas storage ore deposit hole (21) is made higher than the switching pressure of setting
Force value；Water energy-storage units utilize electric energy, by water pump assembly (31) by the water suction in Large Underground normal pressure water storage ore deposit hole (34)
Large Underground high pressure gas and water is stored up altogether in ore deposit hole (27) and enters water-filling energy storage；
Releasing can the first stage：Logical judgment controller (23) judges that the pressure value in underground Large-scale High-Pressure gas storage ore deposit hole (21) is more than
The switching pressure value of setting, control control logic linkage gas circuit valve (20) closure, logic linkage Water path valve (22) is opened；Ground
Pressure-air in lower Large-scale High-Pressure gas storage ore deposit hole (21) is through logic linkage Water path valve (22) and throttling controlling valve throttling
Blood pressure lowering is constant pressure air, promotes Large Underground high pressure gas and water to store up water Jing pipelines in ore deposit hole (27) altogether and promotes water turbine units
(29) do work, drive water turbine units electromotor (30)；Water turbine units go out saliva Jing pipelines and are back to the storage of Large Underground normal pressure
Shui Kuang holes (34)；
Releasing can second stage：The pressure value that logical judgment controller (23) is detected in underground Large-scale High-Pressure gas storage ore deposit hole (21) is little
In or equal to setting switching pressure value, control logic linkage gas circuit valve (20) open；Underground Large-scale High-Pressure gas storage ore deposit hole
(21) pressure-air in is released through logic linkage gas circuit valve (20) and throttling controlling valve reducing pressure by regulating flow, air inlet expansion
The expansion unit of energy unit drives expansion set generator (17) to generate electricity, and when the generating of unit working stability is expanded, closes logic
Linkage Water path valve (22), water turbine units (29) are shut down；
Wherein, the heat for producing during energy storage stage air compressed energy-storage cell compression air is stored in the storage of thermmal storage closed circuit
In hot device, and when air expansion releasing unit works, the air that heat drives the work of air expansion releasing unit is discharged.
10. it is a kind of with air and water as the joint energy storage method of energy storage working medium, it is characterised in that to comprise the following steps：
The energy storage stage：Using electric energy compressed air, and compressed air is stored in underground Large-scale High-Pressure gas storage ore deposit hole (21)
Row air energy storage, makes the pressure in underground Large-scale High-Pressure gas storage ore deposit hole (21) higher than the switching pressure value of setting；It is logical using electric energy
Cross water pump assembly (31) and the water suction Large Underground high pressure gas and water in Large Underground normal pressure water storage ore deposit hole (34) is stored up into altogether ore deposit hole
(27) water-filling energy storage is entered in；
Releasing can the first stage：Judge switching pressure value of the pressure value in underground Large-scale High-Pressure gas storage ore deposit hole (21) more than setting,
Make the pressure-air in underground Large-scale High-Pressure gas storage ore deposit hole (21) through the controlling valve reducing pressure by regulating flow that throttles for constant pressure air,
Promote Large Underground high pressure gas and water to store up water Jing pipelines in ore deposit hole (27) altogether and promote water turbine units (29) acting, drive the hydraulic turbine
Set generator (30)；Water turbine units go out saliva Jing pipelines and are back to Large Underground normal pressure water storage ore deposit hole (34)；
Releasing can second stage：Detect switching of the pressure value in underground Large-scale High-Pressure gas storage ore deposit hole (21) less than or equal to setting
During pressure value；Pressure-air in control underground Large-scale High-Pressure gas storage ore deposit hole (21) enters through throttling controlling valve reducing pressure by regulating flow
Entering to expand unit drives expansion set generator (17) to generate electricity, and when the generating of unit working stability is expanded, closes water turbine units
(29) power generation circuit；
Wherein, the heat for producing during energy storage stage compression air is stored in the thermophore of thermmal storage closed circuit, and in expansion
When unit drives expansion set generator (17) to generate electricity, the air that heat drives expansion unit work is discharged.
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| CN107489467A (en) * | 2017-08-03 | 2017-12-19 | 中国科学院理化技术研究所 | Compressed air water-pumping energy-storage system |
| CN109098953A (en) * | 2018-07-18 | 2018-12-28 | 同济大学 | Full backheat compressed-air energy storage method and full backheat compressed-air energy-storage system |
| CN109899217A (en) * | 2019-03-21 | 2019-06-18 | 国核电力规划设计研究院有限公司 | Aqueous vapor composite energy storage electricity generation system and method |
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| CN109098953A (en) * | 2018-07-18 | 2018-12-28 | 同济大学 | Full backheat compressed-air energy storage method and full backheat compressed-air energy-storage system |
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| CN111396288A (en) * | 2020-03-31 | 2020-07-10 | 国网湖南省电力有限公司 | Power generation system based on constant pressure |
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| CN111535886A (en) * | 2020-04-28 | 2020-08-14 | 国网湖南省电力有限公司 | Multi-energy combined constant-pressure power generation system |
| CN112901431A (en) * | 2021-01-12 | 2021-06-04 | 西安交通大学 | Near-isothermal compressed air energy storage system and operation method thereof |
| CN113006889A (en) * | 2021-04-14 | 2021-06-22 | 西安交通大学 | Adiabatic near-isothermal compressed air energy storage system and operation method thereof |
| CN113537644A (en) * | 2021-08-23 | 2021-10-22 | 中冶赛迪技术研究中心有限公司 | Multi-air compression station dynamic collaborative optimization regulation and control system and method |
| CN113537644B (en) * | 2021-08-23 | 2022-07-08 | 中冶赛迪技术研究中心有限公司 | Multi-air compression station dynamic collaborative optimization regulation and control system and method |
| CN113883077B (en) * | 2021-10-27 | 2024-03-26 | 西安陕鼓动力股份有限公司 | Control method of multi-machine tandem operation single-shaft compressor unit system |
| CN117353351A (en) * | 2023-12-06 | 2024-01-05 | 中国电建集团华东勘测设计研究院有限公司 | Integrated building load side comprehensive energy storage system with source network and load storage |
| CN117353351B (en) * | 2023-12-06 | 2024-04-02 | 中国电建集团华东勘测设计研究院有限公司 | Integrated building load side comprehensive energy storage system with source network and load storage |
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