CN102797613B - A kind of water pumping compressed air energy-storage - Google Patents
A kind of water pumping compressed air energy-storage Download PDFInfo
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- CN102797613B CN102797613B CN201110137038.XA CN201110137038A CN102797613B CN 102797613 B CN102797613 B CN 102797613B CN 201110137038 A CN201110137038 A CN 201110137038A CN 102797613 B CN102797613 B CN 102797613B
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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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- 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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Abstract
The invention discloses a kind of water pumping compressed air energy-storage, it is related to electric power memory technology, water is pressed into air pressure tank from cistern in low power consumption by water pump by this system makes gas in tank be compressed, thus the interior energy converting electrical energy into air stores；In peak of power consumption, hydraulic pressure is gone out by air pressure tank mesohigh air, drives the hydraulic turbine through aqueduct and drives electrical power generators.The system of the present invention utilizes air pressure tank work characteristics, makes draw water energy storage and compressed-air energy-storage system miniaturization, thus solving the extensive water-pumping energy-storage system and conventional compression air energy storage systems Dependence Problem to geographical conditions.Have simultaneously low cost, not the energy storage cycle limited, be applied to all kinds power supply, environmentally friendly the features such as, have broad application prospects.
Description
Technical field
The present invention relates to electric power technical field of memory, particularly a kind of water pumping compressed air energy-storage.
Background technology
For a long time, for meeting ever-increasing electrical load requirements, power department has to be required according to peak load
Build generating capacity.This surplus on the one hand causing a large amount of generating capacities and waste, on the other hand, power department has to
Limit electricity consumption in the peak of power consumption period.Therefore match therewith in the urgent need to economic, stable, reliable, efficient electric energy storing system
Cover and improve the excessive situation of system loading peak valley difference.It is only capable of the power system of run at high level especially for nuclear power station etc., electricity
The demand of power energy-storage system is just more urgent.What is more important, electric energy storing system is by the batch (-type) energy such as wind energy, solar energy
Getting up in source " splicing ", improves the effective means of regenerative resource (having intermittent feature) utilization rate.Meanwhile, electric energy storing system
Or the key technology of distributed energy resource system.It is conventional that distributed energy resource system adopts great quantity of small distributed power system to replace
Large centralised power system, has the advantages that the high and low pollution of comprehensive utilization of energy, the thermal efficiency, but simultaneously because circuit, operation
The system failure rate causing etc. reason can be higher than conventional large centralised power system.And, because the capacity of system is less, it is
The fluctuation of system load also will be significantly increased, and therefore, using electric energy storing system as load equalizer and stand-by power supply be point
The measure that cloth energy resource system must take into.
Have at present electric power memory technology include drawing water energy storage, compressed-air energy storage, batteries to store energy, superconducting energy storage, fly
Wheel energy storage and capacitor energy storage etc., but due to capacity, energy storage cycle, energy density, efficiency for charge-discharge, life-span, operating cost, ring
The reasons such as guarantor, only draw water energy storage and two kinds of the compressed-air energy storage running in large scale business system at present.
Water is delivered to elevated reservoir from low level reservoir in low power consumption by water pump by water-pumping energy-storage system, thus electric energy is turned
The potential energy turning to water stores, and in peak of power consumption, water is emitted into low level reservoir from elevated reservoir and drives the hydraulic turbine to generate electricity.Draw water
Energy-storage system has the advantages that technology maturation, efficiency high, stored energy capacitance be big, the energy storage cycle is unrestricted, is to widely use at present
Electric energy storing system.But, extensive water-pumping energy-storage system needs special geographical conditions to build two reservoirs and dam, builds
If the cycle is very long, initial investment is huge.More thorny, building large reservoir large area can flood vegetation or even city, make
Become ecological and immigration problem, therefore build extensive water-pumping energy-storage system and receive increasing restriction.
Conventional compression air energy storage systems are a kind of energy-storage systems based on gas turbine technology exploitation, will in low power consumption
In air press-in air storage chamber, thus convert electrical energy into air internal energy storing；In peak of power consumption by pressure-air from gas storage
Room discharges, and enters gas-turbine combustion chamber with fuel one combust, then drives turbine power generation.Conventional compression air energy storage systems
Have the advantages that stored energy capacitance is larger, energy storage cycle length, efficiency are higher and specific investment cost is relatively small；But compressed-air energy storage
System still relies on combustion of fossil fuels and provides thermal source, on the one hand faces the threat that Fossil fuel is petered out with rise in price,
On the other hand its burning still produces nitrogen oxides, sulfide and carbon dioxide etc., does not meet green energy resource demand for development；More
Fatal, conventional compression air energy storage systems are also required to specific geographical conditions and build large-scale air storage chamber, such as rock cavity, salt
Hole, abandoned mine etc., thus greatly limit the range of application of conventional compression air energy storage systems.
At present, it is badly in need of solving the subject matter that large-scale water-pumping energy-storage system and traditional energy-storage system face, that is, to distinguishingly
The Dependence Problem of manage bar part.
Content of the invention
The purpose of the present invention is to disclose a kind of water pumping compressed air energy-storage, in low power consumption pass through water pump by water from
Cistern press-in air pressure tank makes gas in tank be compressed, thus the interior energy converting electrical energy into air stores；In electricity consumption
During peak, hydraulic pressure is gone out by air pressure tank mesohigh air, drives the hydraulic turbine through aqueduct and drives electrical power generators.System of the present invention
System makes full use of the work characteristics of air pressure tank, makes draw water energy storage and compressed-air energy-storage system miniaturization, thus solving big rule
Mould draws water the energy storage and conventional compression air energy storage systems Dependence Problem to geographical conditions.
For reaching above-mentioned purpose, the technical solution of the present invention is：
A kind of water pumping compressed air energy-storage, including energy storage unit, air pressure tank, cistern, valve and the water-supply-pipe of drawing water
Road；Wherein：
Draw water an energy storage unit at least motor, a water pump, a hydraulic turbine, an electromotor, cistern through aqueduct,
First valve is interlinked with the pump entrance of the energy storage unit that draws water, and exit of pump is through aqueduct through air pressure tank entrance and inner chamber phase
Lead to；
Air pressure tank outlet through aqueduct, multiple valve, draw water the hydraulic turbine of energy storage unit and cistern interlinks；
Motor drive shaft is affixed with water pump shaft, and hydraulic turbine drive shaft is affixed with alternator shaft；
Its workflow is：
During energy storage, actuating motor drives water pump that water is empty through aqueduct, valve press-in air pressure tank compression from cistern
Gas stores；When releasing energy, hydraulic pressure is gone out by the pressure-air in air pressure tank, drives the hydraulic turbine through aqueduct, valve, the hydraulic turbine drives
Electrical power generators.
Described water pumping compressed air energy-storage, its plurality of valve, is two, is respectively provided at the energy storage unit that draws water
Hydraulic turbine both sides, the second valve be located at hydraulic turbine upstream, the 3rd valve be located at hydraulic turbine downstream.
Described water pumping compressed air energy-storage, draw water described in it energy storage unit, is four machine formulas or three machine formulas are drawn water storage
Energy unit, during energy storage, the first valve opening, the second valve, the 3rd valve, the hydraulic turbine, electromotor are closed；When releasing energy, the second valve
Door, the 3rd valve opening, the first valve, motor, water pump are closed.
A kind of Miniature water-pumping compressed-air energy-storage system, including the energy storage unit that draws water, air pressure tank, cistern, valve and defeated
Waterpipe；Wherein：
The energy storage unit that draws water draws water energy storage unit for reversible, including reversible electric-electromotor, reversible pump-water
Turbine, reversible electric-electromotor is affixed with the power transmission shaft of reversible pump turbine；
The reversible energy storage unit that draws water is interlinked with air pressure tank inner chamber, cistern respectively through aqueduct, multiple valve；
Its workflow is：
During energy storage, open multiple valves, start reversible electric-generator drive water pump by water from cistern through water-supply-pipe
Road, the press-in air pressure tank compressed air storage of multiple valve；Release can when, open multiple valves, the pressure-air in air pressure tank is by water
Extrude, drive reversible pump turbine through aqueduct, multiple valve, the hydraulic turbine drives electrical power generators.
Described water pumping compressed air energy-storage, its plurality of valve, is two, is respectively provided at the energy storage unit that draws water
Both sides, the second valve is located at and draws water energy storage unit upstream, and the 3rd valve is located at energy storage unit downstream of drawing water.
Described water pumping compressed air energy-storage, the power supply of its described actuating motor is conventional power plant low ebb (at a low price)
Electricity, nuclear power, wind-powered electricity generation, solar electrical energy generation, water power or one or more therein of tidal power generation.
Described water pumping compressed air energy-storage, its described thermal energy storage process is in electric power low ebb (at a low price), regenerative resource
Enable during redundancy of power generation；Exoergic process opens when undesirable in peak of power consumption (at high price), electric power accident, renewable energy power generation
With.
Described water pumping compressed air energy-storage, it is worked as multiple stage water pump, the hydraulic turbine or reversible pump turbine
When, multiple stage water pump, the hydraulic turbine or reversible pump turbine are cascade or parallel form；In parallel form, each point
Axle is dynamically connected with main drive shaft.
Described water pumping compressed air energy-storage, its described air pressure tank, be vertical or horizontal gasbag-type, diaphragm type,
One of them of full-replacement type.
Described water pumping compressed air energy-storage, its described cistern, install on the ground or underground.
Described water pumping compressed air energy-storage, its described water pump, reversible pump turbine, its water pump is impeller
Formula pump or positive displacement pump；Its hydraulic turbine is reaction turbine or impulse turbine.
Described water pumping compressed air energy-storage, its described impeller pump, be axial-flow type, mixed-flow or centrifugal wherein
One of；Positive displacement pump, is one of gear pump, screw pump, lobe pump or sliding-vane pump.
Described water pumping compressed air energy-storage, its described reaction turbine, is axial-flow type, mixed-flow, diagonal flow type
One of or tubular；Impulse turbine, is one of bucket-type, tilt-impulse type or double click type.
Described water pumping compressed air energy-storage, during its energy storage, by control water pump flow, close down part water pump Lai
Adjust energy storage capacity；Release can when, by controlling the flow of the hydraulic turbine, closing down the part hydraulic turbine and adjust generating capacity.
It is an advantage of the current invention that：Using the work characteristics of air pressure tank, make to draw water energy storage and compressed-air energy-storage system micro-
Type, thus solve the energy storage and conventional compression air energy storage systems Dependence Problem to geographical conditions that draws water on a large scale.Simultaneously
Have low cost, not the energy storage cycle limited, be applied to all kinds power supply, environmentally friendly the features such as, have wide should
Use prospect.
Brief description
Fig. 1 is embodiment 1 structural representation of water pumping compressed air energy-storage of the present invention；
Fig. 2 is embodiment 2 structural representation of water pumping compressed air energy-storage of the present invention；
Fig. 3 is embodiment 3 structural representation of water pumping compressed air energy-storage of the present invention；
Fig. 4 is embodiment 4 structural representation of water pumping compressed air energy-storage of the present invention；
Fig. 5 is embodiment 5 structural representation of water pumping compressed air energy-storage of the present invention；
Fig. 6 is embodiment 6 structural representation of water pumping compressed air energy-storage of the present invention；
Fig. 7 is embodiment 7 structural representation of water pumping compressed air energy-storage of the present invention；
Fig. 8 is embodiment 8 structural representation of water pumping compressed air energy-storage of the present invention.
Specific embodiment
The invention discloses a kind of water pumping compressed air energy-storage, it passes through water pump by water from cistern in low power consumption
Press-in air pressure tank makes gas in tank be compressed, thus the interior energy converting electrical energy into air stores；In peak of power consumption, gas
Hydraulic pressure is gone out by pressure tank mesohigh air, drives the hydraulic turbine through aqueduct and drives electrical power generators.It utilizes air pressure tank to work
Feature, makes draw water energy storage and compressed-air energy-storage system miniaturization, thus solving extensive water-pumping energy-storage system and tradition pressure
The Dependence Problem to geographical conditions for the contracting air energy storage systems.Have simultaneously low cost, not the energy storage cycle limited, be applied to various
Type of power, environmentally friendly the features such as, have broad application prospects.
Embodiment：
Fig. 1 is the embodiment 1 of the water pumping compressed air energy-storage of the present invention.The four machine formulas of the present invention are drawn water compressed air
Energy-storage system, it is drawn water energy storage unit using four machine formulas, and air pressure tank is vertical gasbag-type.Wherein, cistern 1, aqueduct 2,
4th, 6,8,10,11,13, four machine formulas are drawn water energy storage unit 5, valve 3,9,12 and air pressure tank 7.The four machine formulas energy storage unit that draws water includes
Motor, water pump, the hydraulic turbine and electromotor；Motor is affixed with the power transmission shaft of water pump, and electromotor is solid with the power transmission shaft of the hydraulic turbine
Connect.
The cistern 1 and four machine formulas energy storage unit 5 that draws water interlinks through aqueduct 2,4,11,13 and valve 3,12, four machines
The formula energy storage unit 5 that draws water is interlinked through aqueduct 6,8,10 and valve 9 with air pressure tank 7.
During energy storage, valve 3 is opened, and valve 9,12 is closed, and low ebb (at a low price) electric drive four machine formula is drawn water energy storage unit 5, will
Water is pressed into air pressure tank 7 by aqueduct 2,4,6 makes gas in tank be compressed.Thermal energy storage process terminates, and valve 3 is closed.Release energy
When, valve 9,12 is opened, and valve 3 is closed, and air pressure tank 7 mesohigh air is by water through aqueduct 8,10,11,13 and valve 9,12
Deliver to cistern 1, and drive the four machine formulas energy storage unit 5 that draws water to generate electricity.Exoergic process terminates, and valve 9,12 is closed.
Generally, energy storage runs when different with exoergic process, and during energy storage, four machine formulas are drawn water the water pump of energy storage unit 5
And electric motor operation, the hydraulic turbine and electromotor closing；Release can when then contrary, four machine formulas are drawn water the hydraulic turbine of energy storage unit 5 and sending out
Motor works, and water pump and motor are closed.
Fig. 2 is the embodiment 2 of the water pumping compressed air energy-storage of the present invention.The three machine formulas of the present invention are drawn water compressed air
Energy-storage system, its agent structure is same as Example 1, but four machines being drawn water in energy storage unit replacement embodiment 1 using three machine formulas
Formula is drawn water energy storage unit.Wherein, cistern 1, aqueduct 2,4,6,8,10,11,13, three machine formulas are drawn water energy storage unit 5, valve
3rd, 9,12 and air pressure tank 7.The three machine formulas energy storage unit that draws water includes the hydraulic turbine, water pump and reversible electric-electromotor；Water pump and water
Turbine is affixed with the power transmission shaft of reversible electric-electromotor.
The cistern 1 and three machine formulas energy storage unit 5 that draws water interlinks through aqueduct 2,4,11,13 and valve 3,12, three machines
The formula energy storage unit 5 that draws water is interlinked through aqueduct 6,8,10 and valve 9 with air pressure tank 7.
During energy storage, valve 3 is opened, and valve 9,12 is closed, and low ebb (at a low price) electric drive three machine formula is drawn water energy storage unit 5, will
Water is pressed into air pressure tank 7 by aqueduct 2,4,6 makes gas in tank be compressed.Thermal energy storage process terminates, and valve 3 is closed.Release energy
When, valve 9,12 is opened, and valve 3 is closed, and air pressure tank 7 mesohigh air is by water through aqueduct 8,10,11,13 and valve 9,12
Deliver to cistern 1, and drive the three machine formulas energy storage unit 5 that draws water to generate electricity.Exoergic process terminates, and valve 9,12 is closed.
Generally, energy storage runs when different with exoergic process, and during energy storage, three machine formulas are drawn water the water pump of energy storage unit 5
And electric motor operation, the hydraulic turbine and electromotor closing；Release can when then contrary, three machine formulas are drawn water the hydraulic turbine of energy storage unit 5 and sending out
Motor works, and water pump and motor are closed.
Fig. 3 is the embodiment 3 of the water pumping compressed air energy-storage of the present invention.The reversible of the present invention draws water compressed air
Energy-storage system, its agent structure is same as Example 1, but four machines being drawn water in energy storage unit replacement embodiment 1 using reversible
Formula is drawn water energy storage unit.Wherein, cistern 1, aqueduct 8,10,11,13, reversible draws water energy storage unit 5, valve 9,12 and
Air pressure tank 7.The reversible energy storage unit that draws water includes reversible electric-electromotor and reversible pump turbine；Reversible electricity
Dynamic-electromotor is affixed with the power transmission shaft of reversible pump turbine.
The cistern 1 and reversible energy storage unit 5 that draws water interlinks through aqueduct 11,13 and valve 12, and draw water energy storage machine
Group 5 is interlinked through aqueduct 8,10 and valve 9 with air pressure tank 7.
During energy storage, valve 9,12 is opened, and low ebb (at a low price) electric drive reversible draws water energy storage unit 5, and water is passed through water delivery
Pipeline 13,11,10,8 and valve 12,9 press-in air pressure tank 7 make gas in tank be compressed.Thermal energy storage process terminates, and valve 9,12 closes
Close.When releasing energy, valve 9,12 is opened, and water is sent by air pressure tank 7 mesohigh air through aqueduct 8,10,11,13 and valve 9,12
To cistern 1, and the reversible energy storage unit 5 that draws water is driven to generate electricity.Exoergic process terminates, and valve 9,12 is closed.
Generally, energy storage different with exoergic process when run, during energy storage, reversible draw water energy storage unit 5 water pump-
Work under electric motor mode；Release then contrary during energy, the reversible energy storage unit 5 that draws water works under the hydraulic turbine-generator mode.
Fig. 4 is the embodiment 4 of the water pumping compressed air energy-storage of the present invention.The reversible of the present invention draws water compressed air
Energy-storage system, its agent structure is same as Example 3, but using diaphragm-type air-compressed tank and replaces gasbag-type air pressure in embodiment 3
Tank, air pressure tank is divided into upper and lower two parts by barrier film.Wherein, cistern 1, aqueduct 8,10,11,13, reversible draws water energy storage
Unit 5, valve 9,12 and air pressure tank 14.Reversible draw water energy storage unit include reversible electric-electromotor and reversible pump-
The hydraulic turbine；Reversible electric-electromotor is affixed with the power transmission shaft of reversible pump turbine.
Each part connection status of this system, energy storage and exoergic process also have mode of operation and the enforcement of pump-storage generator
Example 3 is essentially identical.
The reversible energy storage unit that draws water is alternatively that four machine formulas draw water energy storage unit or three machine formulas are drawn water energy storage unit, its master
Body structure is identical with embodiment 1,2 respectively.
Fig. 5 is the embodiment 5 of the water pumping compressed air energy-storage of the present invention.The reversible of the present invention draws water compressed air
Energy-storage system, its agent structure is same as Example 4, but in diaphragm-type air-compressed tank septation, air pressure tank is divided into left and right two
Point.Wherein, cistern 1, aqueduct 8,10,11,13, reversible draws water energy storage unit 5, valve 9,12 and air pressure tank 15.Can
The inverse formula energy storage unit that draws water includes reversible electric-electromotor and reversible pump turbine；Reversible electric-electromotor with
The power transmission shaft of reversible pump turbine is affixed.
Each part connection status of this system, energy storage and exoergic process also have mode of operation and the enforcement of pump-storage generator
Example 4 is essentially identical.
The reversible energy storage unit that draws water is alternatively that four machine formulas draw water energy storage unit or three machine formulas are drawn water energy storage unit, its master
Body structure is identical with embodiment 1,2 respectively.
Fig. 6 is the embodiment 6 of the water pumping compressed air energy-storage of the present invention.The reversible of the present invention draws water compressed air
Energy-storage system, its agent structure is same as Example 4, but using full-replacement type air pressure tank and replaces embodiment 4 septation formula gas
Pressure tank, so can increase air pressure tank moisture storage capacity.Wherein, cistern 1, pipeline 8,10,11,13,17,19, reversible draws water
Energy storage unit 5, valve 9,12,18, air pressure tank 16 and gas cylinder 20.The reversible energy storage unit that draws water includes reversible electric-generating
Machine and reversible pump turbine；Reversible electric-electromotor is affixed with the power transmission shaft of reversible pump turbine.
Valve 18 is commonly to screw valve or holding valve；Gas cylinder 20 is gas cylinder or middle air bottle.
The cistern 1 and reversible energy storage unit 5 that draws water interlinks through pipeline 11,13 and valve 12, draw water energy storage unit 5 with
Air pressure tank 16 interlinks through pipeline 8,10 and valve 9, and air pressure tank 16 is interlinked through pipeline 19,17 and valve 18 with gas cylinder 20.
During energy storage, valve 12,9,18 is opened, and low ebb (at a low price) electric drive reversible draws water energy storage unit 5, and water is passed through pipe
Road 13,11,10,8 and valve 12,9 send into air pressure tank 16, and make gas in tank be pressed into gas cylinder 20 through pipeline 17,19 and valve 18
In.Thermal energy storage process terminates, and valve 12,9,18 is closed.When releasing energy, valve 18,9,12 is opened, and the air in gas cylinder 20 is through pipeline
19th, 17 and valve 18 hydraulic pressure in air pressure tank 16 is gone out, and deliver to cistern 1 through pipeline 8,10,11,13 and valve 9,12, and
The reversible energy storage unit 5 that draws water is driven to generate electricity.Exoergic process terminates, and valve 18,9,12 is closed.
The mode of operation of the reversible energy storage unit that draws water in system is same as Example 4.
The reversible energy storage unit that draws water is alternatively that four machine formulas draw water energy storage unit or three machine formulas are drawn water energy storage unit, its master
Body structure is identical with embodiment 1,2 respectively.
Fig. 7 is the embodiment 7 of the water pumping compressed air energy-storage of the present invention.The reversible of the present invention draws water compressed air
Energy-storage system, its agent structure is same as Example 4, but using Horizontal diaphragm formula air pressure tank and replace embodiment 4 in vertical every
Membrane type air pressure tank.Wherein, cistern 1, aqueduct 8,10,11,13, reversible draws water energy storage unit 5, valve 9,12 and air pressure
Tank 21.The reversible energy storage unit that draws water includes reversible electric-electromotor and reversible pump turbine；Reversible electric-send out
Motor is affixed with the power transmission shaft of reversible pump turbine.
Each part connection status of this system, energy storage and exoergic process also have mode of operation and the enforcement of pump-storage generator
Example 4 is essentially identical.
The reversible energy storage unit that draws water is alternatively that four machine formulas draw water energy storage unit or three machine formulas are drawn water energy storage unit, its master
Body structure is identical with embodiment 1,2 respectively.
Air pressure tank can also be gasbag-type or full-replacement type.
Fig. 8 is the embodiment 8 of the water pumping compressed air energy-storage of the present invention.The pressure of drawing water of the ground reservoir of the present invention
Contracting air energy storage systems, its agent structure is same as Example 4, and cistern is installed on the ground, using vertical diaphragm formula air pressure
Tank, air pressure tank is divided into upper and lower two parts by barrier film.Wherein, cistern 1, aqueduct 23,24,26,11,10,8, reversible is taken out
Water energy storage unit 5, valve 9,22,25, air pressure tank 14, ground 27.The reversible energy storage unit that draws water includes reversible electric-generating
Machine and reversible pump turbine；Reversible electric-electromotor is affixed with the power transmission shaft of reversible pump turbine.
Valve 22,25 is check valve, and its circulating direction is as shown in Figure 8.
During energy storage, valve 9,25 is opened, and valve 22 is closed, and low ebb (at a low price) electric drive reversible draws water energy storage unit 5, will
Water passes through pipeline 24,26,11,10,8 and valve 25,9 is pressed into air pressure tank 14 and so that gas in tank is compressed.Thermal energy storage process terminates,
Valve 9,25 is closed.Release can when, valve 22,9 is opened, and valve 25 is closed, the air in air pressure tank 14 by water through pipeline 8,10,
11st, 23 and valve 9,22 deliver to cistern 1, and drive the reversible energy storage unit 5 that draws water to generate electricity.Exoergic process terminates, valve 22,
9 closings.
The mode of operation of the reversible energy storage unit that draws water in system is same as Example 4.
The reversible energy storage unit that draws water is alternatively that four machine formulas draw water energy storage unit or three machine formulas are drawn water energy storage unit, its master
Body structure is identical with embodiment 1,2 respectively.
Air pressure jar structure is alternatively diaphragm type, gasbag-type or the full-replacement type that air pressure tank is divided into left-right parts by barrier film,
Hold form alternatively horizontal.
Claims (13)
1. a kind of water pumping compressed air energy-storage, including energy storage unit, air pressure tank, cistern, valve and the aqueduct of drawing water；
It is characterized in that：
Draw water an energy storage unit at least motor, a water pump, a hydraulic turbine, an electromotor, cistern through aqueduct, first
Valve is interlinked with the pump entrance of the energy storage unit that draws water, and exit of pump is communicated with inner chamber through air pressure tank entrance through aqueduct
Even；
Air pressure tank outlet through aqueduct, multiple valve, draw water the hydraulic turbine of energy storage unit and cistern interlinks；Wherein, institute
Stating air pressure tank is vertical or horizontal gasbag-type air pressure tank, diaphragm-type air-compressed tank or full-replacement type air pressure tank；
Motor drive shaft is affixed with water pump shaft, and hydraulic turbine drive shaft is affixed with alternator shaft；
Its workflow is：
During energy storage, actuating motor drives water pump to deposit water through aqueduct, valve press-in air pressure tank compressed air from cistern
Storage；When releasing energy, hydraulic pressure is gone out by the pressure-air in air pressure tank, drives the hydraulic turbine through aqueduct, valve, and the hydraulic turbine drives and generates electricity
Machine generates electricity；
Wherein, during energy storage, by controlling the flow of water pump, closing down part water pump and adjust energy storage capacity；When releasing energy, by controlling
The flow of the hydraulic turbine, close down the part hydraulic turbine to adjust generating capacity.
2. water pumping compressed air energy-storage according to claim 1 it is characterised in that：The plurality of valve, is two,
It is respectively provided at the hydraulic turbine both sides of the energy storage unit that draws water, the second valve is located at hydraulic turbine upstream, the 3rd valve is located under the hydraulic turbine
Trip.
3. water pumping compressed air energy-storage according to claim 1 it is characterised in that：The plurality of valve includes second
Valve and the 3rd valve, the described energy storage unit that draws water, is four machine formulas or three machine formulas are drawn water energy storage unit, during energy storage, the first valve
Open, the second valve, the 3rd valve, the hydraulic turbine, electromotor are closed；When releasing energy, the second valve, the 3rd valve opening, the first valve
Door, motor, water pump are closed.
4. a kind of Miniature water-pumping compressed-air energy-storage system, including energy storage unit, air pressure tank, cistern, valve and the water delivery of drawing water
Pipeline；It is characterized in that：
The energy storage unit that draws water draws water energy storage unit for reversible, including reversible electric-electromotor, reversible pump turbine,
Reversible electric-electromotor is affixed with the power transmission shaft of reversible pump turbine；
The reversible energy storage unit that draws water is interlinked with air pressure tank inner chamber, cistern respectively through aqueduct, multiple valve；Wherein,
Described air pressure tank is vertical or horizontal gasbag-type air pressure tank, diaphragm-type air-compressed tank or full-replacement type air pressure tank；
Its workflow is：
During energy storage, open multiple valves, start reversible electric-generator drive water pump by water from cistern through aqueduct,
Multiple valve press-in air pressure tank compressed air storages；Release can when, open multiple valves, the pressure-air in air pressure tank is by hydraulic pressure
Go out, drive reversible pump turbine through aqueduct, multiple valve, the hydraulic turbine drives electrical power generators；
Wherein, during energy storage, by controlling the flow of water pump, closing down part water pump and adjust energy storage capacity；When releasing energy, by controlling
The flow of the hydraulic turbine, close down the part hydraulic turbine to adjust generating capacity.
5. water pumping compressed air energy-storage according to claim 4 it is characterised in that：The plurality of valve, is two,
It is respectively provided at the both sides of the energy storage unit that draws water, the second valve is located at energy storage unit upstream of drawing water, the 3rd valve is located at energy storage of drawing water
Unit downstream.
6. the water pumping compressed air energy-storage according to claim 1 or 4 it is characterised in that：Described actuating motor
Power supply is conventional power plant trough-electricity, nuclear power, wind-powered electricity generation, solar electrical energy generation or one or more therein of water power.
7. water pumping compressed air energy-storage according to claim 6 it is characterised in that：Described water power is tidal power generation.
8. the water pumping compressed air energy-storage according to claim 1 or 4 it is characterised in that：Described thermal energy storage process is in electricity
Enable when power low ebb, renewable energy power generation redundancy；Exoergic process is in peak of power consumption, electric power accident, renewable energy power generation not
Enable when meeting the requirements.
9. the water pumping compressed air energy-storage according to claim 1 or 4 it is characterised in that：When having multiple stage water pump, water wheels
When machine or reversible pump turbine, multiple stage water pump, the hydraulic turbine or reversible pump turbine are cascade or simultaneously
Connection form；In parallel form, each split axle and main drive shaft are dynamically connected.
10. the water pumping compressed air energy-storage according to claim 1 or 4 it is characterised in that：Described cistern, installs
On the ground or underground.
11. water pumping compressed air energy-storages according to claim 1 or 4 it is characterised in that：Described water pump, reversible
Pump-turbine, its water pump is impeller pump or positive displacement pump；Its hydraulic turbine is reaction turbine or impulse turbine.
12. water pumping compressed air energy-storages according to claim 11 it is characterised in that：Described impeller pump, is axle
Streaming, mixed-flow or centrifugal one of them；Positive displacement pump, is one of gear pump, screw pump, lobe pump or sliding-vane pump.
13. water pumping compressed air energy-storages according to claim 11 it is characterised in that：Described reaction turbine,
For axial-flow type, mixed-flow, diagonal flow type or tubular one of them；Impulse turbine, be bucket-type, tilt-impulse type or double click type its
One of.
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