CN106499612B - Compressed air double-energy storage system without external heat source - Google Patents
Compressed air double-energy storage system without external heat source Download PDFInfo
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- CN106499612B CN106499612B CN201611093124.4A CN201611093124A CN106499612B CN 106499612 B CN106499612 B CN 106499612B CN 201611093124 A CN201611093124 A CN 201611093124A CN 106499612 B CN106499612 B CN 106499612B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses a kind of compressed air double-energy storage system of no external heat source, including compressor set, expansion unit, water turbine set, water pump assembly, the encompassing cabin of aqueous vapor, gas storage ore deposit hole, heat exchanger；During energy storage, valley electricity driving compressor compresses air to high pressure conditions and is stored in ore deposit hole, while the heat regenerator recycling heat of compression；When releasing energy, the water in the encompassing cabin of high pressure air drives aqueous vapor enters hydraulic turbine power generation, and pressure-air is preheated after water drains, in cabin enters back into expansion unit acting electrical power generators；Treat that cabin inner air pressure is down to atmospheric pressure, the water pump assembly water-filling into cabin again, meanwhile, another encompassing cabin of aqueous vapor is started to work, and so cycle releases energy.The present invention carries out electric energy release using double encompassing cabins of aqueous vapor, saves nacelle material and cycling use of water；Without external heat source in cyclic process, save fuel and nonstaining property gas discharges, improve the environment friendly of system；Water turbine set power generation is used in combination with expansion unit generation, energy utilization efficiency is high.
Description
Technical field
The present invention relates to electric energy physical store technical field, more particularly to a kind of compressed air double-energy storage of no external heat source
System.
Background technology
For a long time, it is many urgently to have caused environmental pollution, energy shortages etc. for energy resource structure of the China based on fossil fuel
Problem to be solved.Therefore, it is imperative to develop the renewable and clean energy resources such as wind energy, solar energy.By the end of the year 2015, China tires out
Meter installation Wind turbines 92981, add up installed capacity 145362MW, increase by 26.8% on a year-on-year basis, rank the first in the world[1,2].And
The renewable energy power generations such as wind energy are also faced with huge challenge while the energy is led to make the transition, fluctuation, intermittence and
Can not Accurate Prediction etc. threat is caused to the safe and stable operation of power grid, become and restrict renewable energy power generation industry hair
The main reason for exhibition.
The energy storage technology to come into being provides effective technical support for renewable energy power generation industry.At present, it draws water
When accumulation of energy and compressed-air energy storage are because its technology is more mature, benefit is relatively significant the advantages that in extensive technical field of energy storage
Obtain extensive concern[3].Water is evacuated to elevated reservoir by water-storage technology using regenerative resource institute's electricity from low level reservoir,
The gravitional force for converting electrical energy into water is stored in elevated reservoir, and machine discharges the water in elevated reservoir again in due course, so as to
Drive hydraulic turbine power generation.Water-storage is current most popular energy storage technology, with cycle efficieny is high, capacity is big, operation
Mode flexibly waits remarkable advantages, but its addressing is by the specifically limited of landform and hydrologic condition.Compressed air energy storage technology is then
Using electric energy compressed air, by pressure-air be sealed in abandoned mine, the seabed air accumulator of sedimentation, cavern, expired oil/gas well or
In newly-built gas storage well, in network load peak period, release pressure-air enters gas-turbine combustion chamber burning, drives turbine power generation.
Compressed-air energy storage has the advantages such as initial cost is few, the energy storage period is long, capacity is larger, but it also has geologic structure special want
It asks, energy storage, which is converted to power process, needs combustion of fossil fuels, there is the disposals of pollutants such as carbon dioxide and nitrogen oxides, energy-storage system
It is inefficient.Therefore, there is an urgent need to develop new and effective large-scale energy storage systems.
In many novel energy-storing systems, Wang Huanran[4]And Y.M.Kim[5]The water pumping compressed air energy-storage of proposition
(PHCA) the advantages of having had both water-storage and compressed-air energy storage, while the shortcomings that both overcome again, essence is to lead to
The pressure change of the over-pressed hollow gas of force container, change enclosed waters surface pressure, be equivalent to and establish elevated reservoir, and its with it is low
Virtual dam is formed, but the variable working condition problem in the system can not be ignored between the reservoir of position.Thereafter, Wang Huanran and Yao Er people etc. are first
The secondary proposition encompassing cabin electric energy storing system of water-gas, and generating electricity and the variable working condition characteristic in thermal energy storage process for the system,
Propose a kind of Chinese patent application for the encompassing cabin electric energy storing system of water-gas that constant pressure is realized with high pressure tank, application
Number for 201410312066.4, Publication No.：CN104100441A.Although introducing high pressure tank in the energy-storage system, solve
Variable working condition problem in PHCA systems, but when energy storage is huge, required high-pressure gas container and the encompassing cabin of high-pressure water gas
Volume it is also very big, the pond volume mating with it is also very big, also should not be underestimated for the working media water of power generation,
The cost of the energy-storage system is necessarily caused to sharply increase, cost of electricity-generating greatly improves or even can hinder the engineer application of the technology.
Bibliography：
[1] Chinese regenerative resource association wind energy Professional Committee .2015 Wind Power In Chinas installed capacity statistics [J] wind
Can, 2016 (2):48-63.
[2] global installed capacity of wind-driven power statistics [J] wind energy industries of Global Wind-energy council .2015,2016:51-56.
[3]HS D B,Grond L,Moll H,etal.The application of power-to-gas,pumped
hydro storage and compressedair energy storage in an electricity system at
different wind power penetration levels[J].Energy,2014(72):360-370.
[4]Wang H,Wang L.A Novel Pumped Hydro Combined with Compressed Air
Energy Storage System[J].Energies,2013:1554-1567.
[5]YM K,Favrat D.Energy and exergy analysis of a mocro-compressed air
energy storage and air cycleheating and cooling system[J].Energy,2010,35(1):
213–220.
[6]Yao E,Wang H,Liu L.A Novel Constant-Pressure Pumped Hydro Combined
with Compressed AirEnergy Storage System[J].Energies,2015:154-171.
Invention content
The object of the present invention is to provide a kind of compressed air double-energy storage systems of no external heat source, not only make full use of high pressure
The energy of air effectively recycles and using the heat of compressor air-discharging, also reduces system mesohigh container cost, and substantially subtract
Lack the dosage of recirculated water, while improve the operational efficiency and economy of system.
In order to achieve the above objectives, the present invention is realised by adopting the following technical scheme：
The compressed air double-energy storage system of a kind of no external heat source, including compressor set, expansion unit, storage air compression
Can underground gas storage ore deposit hole, the encompassing cabin of the first aqueous vapor, the encompassing cabin of the second aqueous vapor, heat regenerator group, storage heater group, first
Motor, the second motor, the first generator, the second generator, third generator, water turbine set, water pump assembly and cistern；
First motor connect compressor group；The entrance in the outlet connection underground gas storage ore deposit hole of compressor set, for the
Atmospheric air under driving is compressed and is stored in underground gas storage ore deposit hole by one motor；The outlet in underground gas storage ore deposit hole divides two-way,
The gas access in the encompassing cabin of the first aqueous vapor and the encompassing cabin of the second aqueous vapor are respectively connected with third control valve by the second control valve
Gas access；
The a mouths of the gas vent connection third electric T-shaped valve in the encompassing cabin of the first aqueous vapor, the gas in the encompassing cabin of the second aqueous vapor
The b mouths of outlet connection third electric T-shaped valve, the c mouths of third electric T-shaped valve connect first accumulation of heat in storage heater group
First heat exchanger channels entrance of formula heater；It expands unit and includes multistage expanding machine, one heat accumulating type of arrangement adds before each expanding machine
Hot device；The entrance of the first heat exchanger channels outlet connection the latter expanding machine of storage heater, after the outlet connection of expanding machine
First heat exchanger channels entrance of one storage heater；Compressor set includes multi-stage compressor, and one is arranged after each section of compressor
A heat regenerator；The entrance of the first heat exchanger channels entrance connection the last period compressor of heat regenerator, the first of heat regenerator changes
The entrance of latter section of compressor of passage of heat outlet connection；The entrance connection air of first compressor in compressor set, last
The outlet of a compressor connects the entrance in underground gas storage ore deposit hole after the first heat exchanger channels of the last one heat regenerator；Each heat is returned
The the second heat exchanger channels outlet for receiving device connects the second heat exchanger channels entrance of each storage heater, and the of each storage heater
The outlet of two heat exchanger channels connects the second heat exchanger channels entrance of each heat regenerator；
The a mouths of second electric T-shaped valve connect the liquid inlet in the encompassing cabin of the first aqueous vapor, the b mouthfuls of encompassing cabins of the second aqueous vapor of connection
Liquid inlet, the water outlet of c mouthfuls of connection water pumps；The a mouths of first electric T-shaped valve connect the liquid discharge in the encompassing cabin of the first aqueous vapor
Mouthful, the liquid outlet in the b mouthfuls of encompassing cabins of the second aqueous vapor of connection, the water inlet of the c mouthfuls of connection hydraulic turbines, the water outlet connection storage of the hydraulic turbine
The entrance in pond, the water inlet of the outlet connection water pump of cistern；The hydraulic turbine connects the second generator, and water pump connection second is electronic
Machine.
Further, the first heat exchanger channels entrance of outlet the 4th control valve connection preheater in underground gas storage ore deposit hole；
The second heat exchanger channels entrance connection heat regenerator group the second heat exchange lane exit of preheater, the second heat exchanger channels of preheater go out
Mouth connection heat regenerator group the second heat exchange passage inlet；The first heat exchanger channels outlet connection pre-expansion turbine of preheater enters
Mouthful.
Further, before work starts, state is closed in the holding of all valves, filled with water in the encompassing cabin of the first aqueous vapor；Energy storage
When process starts, the first control valve of underground gas storage ore deposit hole outlet is first turned on, the first electric motor operation is driven using electric energy, leads to
It crosses the first motor and drives compressor set work, air pressurized is stored into Large Underground gas storage ore deposit hole, is converted electrical energy into
Air internal energy stores wherein；The high temperature and pressure air of each section of compressor outlet is stored in heat accumulating type through corresponding heat regenerator heat absorption and adds
In hot device.
Further, the electric energy period in short supply opens the 4th control valve, makes the high pressure being stored in Large Underground gas storage ore deposit hole
The heating of air preheated device enters back into pre-expansion turbine and expands in advance, so as to which third motor be driven to generate electricity, opens the again later
Two control valves, the pressure-air that expansion is depressurized to constant pressure are passed through in the encompassing cabin of the first aqueous vapor, make the encompassing cabin of the first aqueous vapor
In water under the action of high pressure gas stablize discharge and via the first electric T-shaped valve a mouth drivings hydraulic turbine do work, realization
Flow mechanical energy is drained into cistern and temporarily stores to electric transformation of energy, the later hydraulic turbine.
Further, in the encompassing cabin of the first aqueous vapor after flow driving hydraulic turbine power generation a period of time, the second electric T-shaped valve
B mouths connect, the water in cistern is sent into the encompassing cabin of the second aqueous vapor via water pump, and sets pump capacity more than hydraulic turbine stream
Amount, the draining power generation process in the encompassing cabin of the first aqueous vapor start, but two processes are simultaneously prior to the water filling process in the encompassing cabin of the second aqueous vapor
It completes, is carried out continuously hydraulic turbine discharge process；The second electric three passes are closed immediately after water-filling in the encompassing cabin of second aqueous vapor
The b mouths of valve open the b mouths and third control valve of the first electric T-shaped valve, and the high pressure gas in gas storage ore deposit hole is with constant pressure
Into in the encompassing cabin of the second aqueous vapor, make the b mouth driving hydraulic turbine of the water in the encompassing cabin of the second aqueous vapor via the first electric T-shaped valve
Group acting generates electricity and water is discharged into cistern.
Further, when the encompassing cabin of the second aqueous vapor starts draining electric discharge, the water in the encompassing cabin of the first aqueous vapor also empties simultaneously,
The a mouths of the second control valve and the first electric T-shaped valve are closed at this time, and opening a mouths of third electric T-shaped valve makes the first aqueous vapor encompassing
The expanded unit expansion work power generation of pressure-air in cabin.
The present invention is a kind of compressed air double-energy storage system of no external heat source, including compressor set, expansion unit, water wheels
The encompassing cabin of unit, water pump assembly, cistern, aqueous vapor, air storage chamber, heat regenerator and storage heater；The compressor set exists
Air is collapsed into pressure-air under driving and is stored in large-scale gas storage ore deposit hole by motor；The large size gas storage ore deposit hole goes out
Mouth is through being pre-expanded the turbine connection encompassing cabin upper entrance of aqueous vapor, and then upper part exports and multistage expanding machine when cabin, Nei Shui is drained
Group is connected；The entrance of the hydraulic turbine is connected with the encompassing cabin lower part outlet of aqueous vapor, and outlet is then connected with cistern upper entrance；
The pump entrance connects cistern lower part outlet, and outlet passes through components and the encompassing cabin centre entrance phases of aqueous vapor such as valve pipe
Even.
In said program, the encompassing cabin of aqueous vapor includes the encompassing cabin of the first aqueous vapor and the encompassing cabin of the second aqueous vapor, the two lower part
Outlet is connected by electric T-shaped valve with the hydraulic turbine, and upper outlet is connected by electric T-shaped valve with expansion unit, centre exit
It is connected by electric T-shaped valve with water pump, the encompassing cabin of two aqueous vapors works alternatively in thermal energy storage process, expands unit and water pump machine
Group discontinuous operation, water turbine set then continuous operation.
The expansion unit connection encompassing cabin upper outlet of aqueous vapor, and be made of multistage centripetal expander.Every section of expanding machine
Storage heater is both provided with before entrance for preheated air, heating air institute calorific requirement comes from the generation of compressed air process
Heat；Expander process is isothermal expansion, and the delivery temperature after expansion is relatively low, can be directly discharged into air or for specific
The cooling of occasion.
In said program, the electric T-shaped valve is the device for carrying out work by the timing principles of clock and watch, when the meter of setting
When the time start, device output signal is switched on or off related circuit to control the working condition of relevant device.
Relative to the prior art, the invention has the advantages that：
1. the encompassing cabin of liang aqueous vapor is used alternatingly, nacelle material and cycle water consumption are saved, reduces ground floor space, and energy
Ensure that discharge process is carried out continuously, and water turbine set, water pump assembly, expansion unit then in discharge process continuous operation, saving is set
Standby expense；
2. pressure-air is initially used for pre-expansion power generation, so as to make its outlet pressure constant, it is used further to hydraulic turbine hair later
Electricity generates electricity with expanding machine, and expansion process is realized the maximization of energy utilization, improved the defeated of energy-storage system using isothermal expansion
Go out work(and generating efficiency；
3. whole system, without external heat source, saves fuel, and nonstaining property gas discharges, and improves in cyclic process
The performance driving economy and environment friendly of entire energy-storage system；
4. the discarded sub-terrain mines hole of large size is reduced the construction cost of system, improve high pressure for storing high pressure gas
The safety of gas storage.
The present invention replaces high-pressure bottle with the discarded ore deposit hole of large size；It adds an encompassing cabin of aqueous vapor and is allowed to encompassing with original aqueous vapor
Cabin is used alternatingly, and reduces the volume in the encompassing cabin of aqueous vapor, saves to push the quantity of circulating water of hydraulic turbine work while reduce
For storing the pond volume of recirculated water；Isothermal expansion unit is added so as to make full use of residual high pressure gas in the encompassing cabin of aqueous vapor
Body, setting heat regenerator treat expanding gas to recycle the heat of compressor generation and be used to preheat, realize that energy utilization maximizes.
Description of the drawings
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 is a kind of structure diagram of the compressed air double-energy storage system of no external heat source of the present invention；
Fig. 2 is the control principle flow chart of electric T-shaped valve V2；
Fig. 3 is the control principle flow chart of electric T-shaped valve V3；
Fig. 4 is the control principle flow chart of electric T-shaped valve V4；
Wherein：1 is low pressure compression section, and 2 be the first heat regenerator, and 3 be high pressure compressed section, and 4 be the second heat regenerator, and 5 are
Large Underground gas storage ore deposit hole, 6 be the encompassing cabin of the first aqueous vapor, and 7 be water turbine set, and 8 be cistern, and 9 be water pump, and 10 be the second aqueous vapor
Encompassing cabin, 11 be the first storage heater, and 12 be high pressure expansion arc, and 13 be the second storage heater, and 14 be inflated with low pressure
Section, 15 be the first generator, and 16 be the first motor, and 17 be third motor, and 18 be preheater, and 19 be to be pre-expanded turbine, 20
It is the second motor for the second generator, 21, V1 is the first control valve, and V5 is the second control valve, and V6 is third control valve, and V7 is
4th control valve, V2 are the first electric T-shaped valve, and V3 is the second electric T-shaped valve, and V4 is third electric T-shaped valve.
Specific embodiment
As shown in Figure 1, the present invention is a kind of compressed air double-energy storage system of no external heat source, including low pressure compression section 1,
High pressure compressed section 3, the high pressure expansion arc 12 for power generation, inflated with low pressure section 14, for voltage stabilizing and the pre-expansion whirlpool that recovers energy
Wheel 19 stores the Large Underground gas storage ore deposit hole 5 of air compression energy, realizes the encompassing cabin 6 of the first aqueous vapor of virtual high-order dam structure
Cabin 10 encompassing with the second aqueous vapor recycles the first heat regenerator 2, the second heat regenerator 4 of compressed air heat, heats gas to be expanded
The first storage heater 11, the second storage heater 13 and the preheater 18 of body, electric energy is converted to by the mechanical energy of water
The hydraulic turbine 7, the water pump 9 and other ancillary equipments of loopback recirculated water.
The output axis connection low pressure compression section 1 of first motor 16 and high pressure compressed section 3；The outlet warp of low pressure compression section 1
The entrance of the first heat exchanger channels connection high pressure compressed section 3 of first heat regenerator 2, the outlet of high pressure compressed section 3 pass through the second heat
Entrance through the first control valve V1 connection Large Underground gas storage ore deposits hole 5 after first heat exchanger channels of recover 4.
First heat exchanger channels entrance of the 4th control valve V7 connections preheater 18 of outlet in underground gas storage ore deposit hole 5；Preheating
The outlet of the second heat exchanger channels entrance connection the second heat exchanger channels of storage heater of device 18, the second heat exchange of preheater 18 are logical
Second heat exchanger channels entrance of the first heat regenerator 2 of road outlet connection and the second heat exchanger channels entrance of the second heat regenerator 4.In advance
The entrance of the first heat exchanger channels outlet connection pre-expansion turbine 19 of hot device 18, the outlet of pre-expansion turbine 19 are divided into two-way, and one
Gas access of the road through the encompassing cabin 10 of third control valve V6 the second aqueous vapors of connection, another way is through second control valve V5 the first water of connection
The gas access in the encompassing cabin 6 of gas.
The a mouths of the gas vent connection third electric T-shaped valve V4 in the encompassing cabin 6 of the first aqueous vapor, the encompassing cabin 10 of the second aqueous vapor
The b mouths of gas vent connection third electric T-shaped valve V4, the c mouths of third electric T-shaped valve V4 connect the first storage heater 11
The first heat exchanger channels entrance, the first heat exchanger channels outlet connection high pressure expansion arc 12 of the first storage heater 11 enters
Mouthful, the first heat exchanger channels connection inflated with low pressure section 14 of the second storage heater of outlet 13 of high pressure expansion arc 12 enters
Mouthful, the outlet connection air of inflated with low pressure section 14 or the user for needing to utilize low temperature cold air.
Second heat exchanger channels of the first heat regenerator 2 of the first heat exchanger channels outlet connection of the first storage heater 11 enter
Second heat exchanger channels entrance of mouth and the second heat regenerator 4；The first heat exchanger channels outlet connection of second storage heater 13
Second heat exchanger channels entrance of the first heat regenerator 2 and the second heat exchanger channels entrance of the second heat regenerator 4.First heat regenerator
2 the second heat exchanger channels outlet and the second heat exchanger channels outlet of the second heat regenerator 4 connect the second of heat regenerator and change
The passage of heat.
The a mouths of second electric T-shaped valve V3 connect the liquid inlet in the encompassing cabin 6 of the first aqueous vapor, and b mouthfuls of the second aqueous vapors of connection are total to
Hold the liquid inlet in cabin 10, the water outlet of c mouthfuls of connection water pumps 9.The a mouths of first electric T-shaped valve V2 connect the encompassing cabin of the first aqueous vapor
6 liquid outlet, the liquid outlet in the b mouthfuls of encompassing cabins 10 of the second aqueous vapor of connection, the water inlet of the c mouthfuls of connection hydraulic turbines 7, the hydraulic turbine 7
Water outlet connection cistern entrance, cistern 8 outlet connection water pump 9 water inlet.The hydraulic turbine 7 connects the second generator
20 and water pump 9 connect the second generator 21.
The present invention is a kind of compressed air double-energy storage system of no external heat source, and before work starts, all valves keep tight
Closed state, the encompassing cabin 6 of the first aqueous vapor are interior filled with a certain amount of water.When thermal energy storage process starts, the first control valve V1 is first turned on, profit
The first motor 16 is driven to work with have more than needed electric energy or renewable energy power generation electric energy of user power utilization low ebb period, pass through the first electricity
Motivation 16 drives low pressure compression section 1 and high pressure compressed section 3 to work, and air pressurized is stored into Large Underground gas storage ore deposit hole 5, will
Electric energy is converted to air internal energy storage wherein.Wherein, atmosphere gas enters the progress of low pressure compression section 1 first time pressure by pipeline
Contracting, at this point, 1 exit gas of low pressure compression section be high temperature and pressure air, the gas enter first heat exchanger 2 heat exchange be cooled to it is pre-
If temperature enters back into high pressure compressed section 3 and carries out the second second compression, meanwhile, after the 4th heat regenerator 4 recycling high pressure compressed section 3 is pressurizeed
The heat of pressure high temperature hot gas, and be stored in storage heater together with the heat that second heat exchanger 2 is recycled, later
The first control valve V1 is closed, thermal energy storage process terminates.
The electric energy period in short supply, the 4th control valve V7 is first turned on, makes the high pressure being stored in Large Underground gas storage ore deposit hole 5 empty
The preheated device 18 of gas heats, and enters back into pre-expansion 19 advance expansion driven third generator 17 of turbine and generates electricity, high in hole so as to make
Pressure air is down to steady pressure and recycles the portion of energy, then opens the second control valve V5, and expansion is depressurized to constant pressure
Pressure-air is passed through in the encompassing cabin 6 of the first aqueous vapor, so as to make the water in cabin under the action of high pressure gas stablize discharge and via
The a mouth drivings hydraulic turbine 7 of first electric T-shaped valve V2 does work, and realization flow mechanical energy is arranged to electric transformation of energy, the later hydraulic turbine
Water enters cistern 8 and temporarily stores.Wherein, the 4th control valve V7 keeps its opening, the hydraulic turbine in entire discharge process
7th, preheater 18 and pre-expansion 19 continuous work of turbine, until discharge process terminates.
While the flow driving hydraulic turbine 7 generates electricity in the encompassing cabin 6 of first aqueous vapor, the b mouths of the second electric T-shaped valve V3 are suitable
It is switched on when opportunity, the water in cistern 8 is sent into the encompassing cabin 10 of the second aqueous vapor via water pump 9, and the flow for setting water pump 9 is more than
The flow of the hydraulic turbine 7, the draining power generation process in the encompassing cabin 6 of the first aqueous vapor are opened prior to the water filling process in the encompassing cabin 10 of the second aqueous vapor
Begin, but two processes are completed simultaneously, so that it is guaranteed that hydraulic turbine discharge process is carried out continuously.Water-filling finishes in the encompassing cabin 10 of second aqueous vapor
It closes the b mouths of the second electric T-shaped valve V3 immediately afterwards, opens the b mouths of the first electric T-shaped valve V2 and third control valve V6, gas storage
High pressure gas in ore deposit hole 5 is entered with constant pressure in the encompassing cabin 10 of the second aqueous vapor, makes the water in cabin via first electronic three
The acting of the b mouth drivings hydraulic turbine 7 of port valve V2 generates electricity and water is discharged into cistern 8.
When the encompassing cabin 10 of second aqueous vapor starts draining electric discharge, the water in the encompassing cabin 6 of the first aqueous vapor also empties simultaneously, closes at this time
The a mouths of the second control valve V5, the first electric T-shaped valve V2 are closed, opening a mouths of third electric T-shaped valve V4 makes the high pressure in cabin empty
Gas generates electricity through isothermal expansion unit (high pressure expansion arc 12 and inflated with low pressure section 14) expansion work.Wherein, pressure-air is first in cabin
It is preheated by the first storage heater 11, later into 12 expansion work of high pressure expansion arc, expander outlet air at this time
Temperature, pressure decreases, and exhaust is heated again into the second storage heater 13, is then done work through inflated with low pressure section 14
Drive the power generation output of the first generator 15.The heat of first storage heater 11 and the second storage heater 13 both from
The heat of energy storage stage storage.After pressure-air in the encompassing cabin 10 of second aqueous vapor is completely exhausted out, third control valve V6 is closed, is beaten
The a mouths of the second electric T-shaped valve V3 are opened, water in cistern 8 is made to enter the encompassing cabin 6 of the first aqueous vapor via water pump 9, and set the
When time used in the expansion process of air and water filling process and the draining in the encompassing cabin 10 of the second aqueous vapor generate electricity in the encompassing cabin 6 of one aqueous vapor
Between it is identical, to ensure that water turbine set continuously generates electricity.
After water is completely exhausted out in the encompassing cabin 10 of the second aqueous vapor, the b mouths of third electric T-shaped valve V4 are opened, make the second aqueous vapor
High pressure gas in encompassing cabin 10 enters 14 expansion power generation of high pressure expansion arc 12 and inflated with low pressure section, the first storage heater 11
Then enter the pressure-air of expanding machine for heating with the second storage heater 13.The encompassing cabin of two aqueous vapors replaces again and again
It uses, until power generation process terminates, and starts next round thermal energy storage process.
As shown in Figure 2,3, 4, the respectively control principle flow chart of electric T-shaped valve V2, V3, V4.By expansion unit institute
Energy-releasing cycle slightly has not the third electric T-shaped valve V4 of connection with the result of the action in N (N >=2) secondary cyclic process in the process for the first time
Together, for ease of being described together with other valves, exoergic process N (N >=2) secondary cycle is taken.Wherein, 0 moment represented the first aqueous vapor
Encompassing cabin 6 starts draining power generation；t1Moment represents that high pressure gas expansion finishes in the encompassing cabin 10 of the second aqueous vapor, and starts thereto
Water-filling；t2Moment represents that encompassing 10 water-filling of cabin of the second aqueous vapor terminates, and encompassing 6 draining of cabin of the first aqueous vapor finishes and starts discharge wherein
Pressure-air is allowed to expansion power generation；t3Moment represents that the encompassing exhaust of cabin 6 of the first aqueous vapor finishes, and start water-filling thereto；t4Moment
Represent that encompassing 6 water-filling of cabin of the first aqueous vapor finishes, the water in the encompassing cabin 10 of the second aqueous vapor also empties simultaneously.Time signal shown in figure
It is sent out by timer, all triple valves connect same timer.When electric T-shaped valve works, timer patrols time signal input
Module is collected, the different signal of time range is input to control module, signal control valve after control module analysis conversion
To different working conditions, it is achieved in the encompassing cabin 6 of the first aqueous vapor, the encompassing cabin 10 of the second aqueous vapor and works alternatively, expansion unit, water
The purpose of pump assembly discontinuous operation and water turbine set continuous and stable electric generation.
Claims (5)
1. the compressed air double-energy storage system of a kind of no external heat source, which is characterized in that including compressor set, expansion unit, deposit
The underground gas storage ore deposit hole (5) of storage air compression energy, the encompassing cabin of the first aqueous vapor (6), the encompassing cabin of the second aqueous vapor (10), heat regenerator
Group, storage heater group, the first motor, the second motor, the first generator, the second generator, third generator, water wheels
Machine (7), water pump (9) and cistern (8)；
First motor connect compressor group；The entrance of outlet connection underground gas storage ore deposit hole (5) of compressor set, for first
Atmospheric air under driving is compressed and is stored in underground gas storage ore deposit hole (5) by motor；The outlet in underground gas storage ore deposit hole (5) is divided to two
Road passes through the second control valve (V5) and the gas access and the of third control valve (V6) the connection encompassing cabin of the first aqueous vapor (6) respectively
The gas access in the encompassing cabin of two aqueous vapors (10)；
The a mouths of the gas vent connection third electric T-shaped valve (V4) in the encompassing cabin of the first aqueous vapor (6), the encompassing cabin of the second aqueous vapor (10)
Gas vent connection third electric T-shaped valve (V4) b mouths, the c mouths of third electric T-shaped valve (V4) connect storage heater
First heat exchanger channels entrance of first storage heater in group；It expands unit and includes multistage expanding machine, cloth before each expanding machine
Put a storage heater；The entrance of the first heat exchanger channels outlet connection the latter expanding machine of storage heater, expansion
First heat exchanger channels entrance of outlet connection the latter storage heater of machine；Compressor set include multi-stage compressor, each section
A heat regenerator is arranged after compressor；The outlet of the first heat exchanger channels entrance connection the last period compressor of heat regenerator, heat
The entrance of the latter section of compressor of the first heat exchanger channels outlet connection of recover；The entrance of first compressor connects in compressor set
Air is connect, the outlet of the last one compressor connects underground gas storage ore deposit hole after the first heat exchanger channels of the last one heat regenerator
(5) entrance；The second heat exchanger channels outlet of each heat regenerator connects the second heat exchanger channels entrance of each storage heater, respectively
The second heat exchanger channels outlet of storage heater connects the second heat exchanger channels entrance of each heat regenerator；
The liquid inlet of a mouths connection encompassing cabin of the first aqueous vapor (6) of second electric T-shaped valve (V3), b mouthfuls of the second aqueous vapors of connection are total to
Hold the liquid inlet of cabin (10), the water outlet of c mouthfuls of connection water pumps (9)；The a mouths of first electric T-shaped valve (V2) connect the first aqueous vapor
The liquid outlet of encompassing cabin (6), the liquid outlet of the b mouthfuls of connections encompassing cabin of the second aqueous vapor (10), c mouthfuls the connection hydraulic turbine (7) enter
The mouth of a river, the entrance of the water outlet connection cistern of the hydraulic turbine (7), the water inlet of the outlet connection water pump (9) of cistern (8)；Water
Turbine (7) connects the second generator, and water pump (9) connects the second motor；
First heat exchanger channels entrance of outlet the 4th control valve (V7) the connection preheater (18) in underground gas storage ore deposit hole；Preheater
(18) the second heat exchanger channels entrance connection heat regenerator group the second heat exchange lane exit, the second heat exchanger channels of preheater (18)
Outlet connection heat regenerator group the second heat exchange passage inlet；The first heat exchanger channels outlet connection pre-expansion turbine of preheater (18)
(19) entrance.
2. the compressed air double-energy storage system of a kind of no external heat source according to claim 1, which is characterized in that work is opened
Before beginning, state is closed in all valve holdings, and the encompassing cabin of the first aqueous vapor (6) is interior filled with water；When thermal energy storage process starts, it is first turned on ground
The first control valve (V1) of lower gas storage ore deposit hole outlet drives the first electric motor operation using electric energy, is driven by the first motor
Compressor set works, and air pressurized is stored into Large Underground gas storage ore deposit hole, converts electrical energy into air internal energy storage wherein；
The heat of the high temperature and pressure air of each section of compressor outlet is stored in through corresponding heat regenerator absorption in storage heater.
3. the compressed air double-energy storage system of a kind of no external heat source according to claim 1, which is characterized in that electric energy is tight
The period is lacked, the 4th control valve (V7) is opened, makes the preheated device of pressure-air (18) being stored in Large Underground gas storage ore deposit hole (5)
Heating enters back into pre-expansion turbine (19) and expands in advance, so as to drive third electrical power generators, opens the second control valve again later
(V5), the pressure-air that expansion is depressurized to constant pressure is passed through in the encompassing cabin of the first aqueous vapor (6), makes the encompassing cabin of the first aqueous vapor
(6) water in stablizes discharge under the action of high pressure gas and via a mouth driving hydraulic turbine (7) of the first electric T-shaped valve (V2)
Acting, realization flow mechanical energy are drained into cistern (8) and temporarily store to electric transformation of energy, the later hydraulic turbine.
A kind of 4. compressed air double-energy storage system of no external heat source according to claim 3, which is characterized in that the first water
After the flow driving hydraulic turbine (7) generates electricity a period of time in the encompassing cabin of gas (6), the b mouths of the second electric T-shaped valve (V3) are connected, water storage
Water in pond (8) is sent into the encompassing cabin of the second aqueous vapor (10) via water pump (9), and sets pump capacity and be more than the hydraulic turbine (7) flow,
The draining power generation process in the encompassing cabin of the first aqueous vapor (6) starts prior to the water filling process in the encompassing cabin of the second aqueous vapor (10), but two processes
It completes simultaneously, is carried out continuously hydraulic turbine discharge process；Second is closed immediately after the encompassing cabin of second aqueous vapor (10) interior water-filling
The b mouths of electric T-shaped valve (V3) open b mouths of the first electric T-shaped valve (V2) and third control valve (V6), in gas storage ore deposit hole
High pressure gas is entered with constant pressure in the encompassing cabin of the second aqueous vapor (10), makes water in the encompassing cabin of the second aqueous vapor (10) via the
The b mouth driving hydraulic turbines (7) acting of one electric T-shaped valve (V2) generates electricity and water is discharged into cistern (8).
A kind of 5. compressed air double-energy storage system of no external heat source according to claim 4, which is characterized in that the second water
When the encompassing cabin of gas (10) starts draining electric discharge, the water in the encompassing cabin of the first aqueous vapor (6) also empties simultaneously, closes the second control at this time
The a mouths of valve (V5), the first electric T-shaped valve (V2), opening a mouths of third electric T-shaped valve (V4) makes the encompassing cabin of the first aqueous vapor (6)
The expanded unit expansion work power generation of interior pressure-air.
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