CN102797613A - Water pumping and compressed air energy storage system - Google Patents
Water pumping and compressed air energy storage system Download PDFInfo
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- CN102797613A CN102797613A CN201110137038XA CN201110137038A CN102797613A CN 102797613 A CN102797613 A CN 102797613A CN 201110137038X A CN201110137038X A CN 201110137038XA CN 201110137038 A CN201110137038 A CN 201110137038A CN 102797613 A CN102797613 A CN 102797613A
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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
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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 water pumping and compressed air energy storage system and relates to an electric power storage technology. By the system, water is pumped from a reservoir to a pressure tank through a water pump, and air in the pressure tank is compressed, so that electric energy is converted into internal energy of air to be stored in a valley period; and water is pumped out by high pressure air in the pressure tank, drives a water turbine through a water pipeline and drives a generator to generate electricity in a peak period. According to the system, work characteristics of the pressure tank are utilized, and the water pumping energy storage and compressed air energy storage system is miniaturized, so that the problem that a large scale water pumping energy storage system and the traditional compressed air energy storage system depend on geographical conditions is solved. Meanwhile, the water pumping and compressed air energy storage system has the characteristics of low manufacturing cost, no limitation to energy storage period, suitability for different power sources, environment friendliness and the like, and has a wide application prospect.
Description
Technical field
The present invention relates to the electrical power storage technical field, particularly a kind of compressed-air energy-storage system that draws water.
Background technique
For a long time, for satisfying ever-increasing electric load requirement, power department has to require to build generating capacity according to maximum load.This has caused the superfluous and waste of a large amount of generating capacities on the one hand, and on the other hand, power department is had to again in the brownout of peak of power consumption period.Therefore press for economy, stable, reliably, the electric power energy-storage system matches with it and improves the excessive situation of system loading peak valley difference efficiently.Especially for nuclear power station etc. only can high-order operation electric power system, the demand of electric power energy-storage system is just more urgent.What is more important, the electric power energy-storage system is with intermittent type energy " splicing " such as wind energy, solar energy, improves the effective means of renewable energy sources (having intermittent characteristics) utilization ratio.Simultaneously, the electric power energy-storage system still is the key technology of distributed energy resource system.Distributed energy resource system adopts the great quantity of small distributed power system to replace the electric power system of conventional large-scale centralized formula; Have advantages such as comprehensive utilization of energy, the high and low pollution of the thermal efficiency, but the system failure rate that causes owing to reasons such as circuit, operations simultaneously can be higher than the electric power system of conventional large-scale centralized formula.And because the capacity of system is less, the fluctuation of system loading also will significantly increase, and therefore, adopting the electric power energy-storage system is the measure that distributed energy resource system must be considered as load equalizer and standby power supply.
At present existing electrical power storage technology comprises the energy storage of drawing water, compressed-air energy storage, batteries to store energy, superconducting energy storage, flywheel energy storage and capacitor energy storage etc.; But owing to reasons such as capacity, energy storage cycle, energy density, efficiency for charge-discharge, life-span, operating cost, environmental protection, only draw water two kinds of energy storage and the compressed-air energy storages that in the large scale business system, have moved at present.
The energy-storage system that draws water is delivered to elevated reservoir with water from the low level reservoir through water pump at low power consumption, thereby the potential energy that electric energy is converted into water is stored, and in peak of power consumption, water is disposed to the low level reservoir from elevated reservoir and drives the water turbine generating.The energy-storage system that the draws water advantages such as maturation, efficient are high, stored energy capacitance is big, the energy storage cycle is unrestricted that possess skills are present widely used electric power energy-storage systems.But the energy-storage system that draws water on a large scale needs special geographical condition to build two reservoirs and dam, and the construction period is very long, and initial investment is huge.More thorny is that building large reservoir can large size flood vegetation even city, causes ecology and immigration problem, therefore builds the energy-storage system that draws water on a large scale and has received increasing restriction.
Conventional compression air energy-storage system is based on a kind of energy-storage system of gas turbine technology exploitation, at low power consumption air is pressed in the gas storage chamber, stores thereby electric energy is converted into air internal energy; In peak of power consumption high-pressure air is discharged from gas storage chamber, get into gas-turbine combustion chamber and burn together, drive turbine power generation then with fuel.Conventional compression air energy-storage system has that stored energy capacitance is big, the energy storage cycle is long, efficient is higher and advantage such as specific investment cost is less relatively; But compressed-air energy-storage system still relies on combustion of fossil fuels thermal source is provided; Face on the one hand the fossil fuel threat with rise in price of petering out; Its burning still produces nitrogen oxide, sulphide and carbon dioxide etc. on the other hand, does not meet the green energy resource demand for development; More fatal is, conventional compression air energy-storage system also needs specific geographical condition to build large-scale gas storage chamber, like rock cavity, Yan Dong, abandoned mine etc., thereby big limitations the application area of conventional compression air energy-storage system.
At present, be badly in need of to solve the subject matter that large-scale draw water energy-storage system and traditional energy-storage system face, promptly to the dependence problem of special geographical conditions.
Summary of the invention
The objective of the invention is to disclose a kind of compressed-air energy-storage system that draws water, when low power consumption through water pump with water from wet pit be pressed into barometric tank make jar in gas be compressed, can store thereby electric energy is converted into the interior of air; When peak of power consumption, barometric tank mesohigh air goes out hydraulic pressure, drives water turbine and drives generator for electricity generation through aqueduct.System of the present invention makes full use of the work characteristics of barometric tank, makes draw water energy storage and compressed-air energy-storage system microminiaturized, thereby has solved energy storage and the conventional compression air energy-storage system dependence problem to geographical conditions of drawing water on a large scale.
For achieving the above object, technical solution of the present invention is:
A kind of compressed-air energy-storage system that draws water comprises draw water energy storage unit, barometric tank, wet pit, valve and aqueduct; Wherein:
The energy storage unit that draws water has a motor, a water pump, a water turbine, a generator at least, and wet pit interlinks through the pump entrance of aqueduct, first valve and the energy storage unit that draws water, and exit of pump interlinks with inner chamber through the barometric tank inlet through aqueduct;
The barometric tank outlet interlinks through the water turbine and the wet pit of aqueduct, a plurality of valve, the energy storage unit that draws water;
Motor drive shaft and water pump rotating shaft are affixed, and water turbine live axle and alternator shaft are affixed;
Its workflow is:
During energy storage, actuating motor drives water pump water is pressed into the storage of barometric tank pressurized air from wet pit through aqueduct, valve; When releasing ability, the high-pressure air in the barometric tank goes out hydraulic pressure, and through aqueduct, valve driving water turbine, water turbine drives generator for electricity generation.
The described compressed-air energy-storage system that draws water, its said a plurality of valves are two, are located at the water turbine both sides of the energy storage unit that draws water respectively, and second valve is positioned at the water turbine upper reaches, and the 3rd valve is positioned at the water turbine downstream.
The described compressed-air energy-storage system that draws water, its said energy storage unit that draws water is four machine formulas or the three machine formulas energy storage unit that draws water, during energy storage, first valve opening, second valve, the 3rd valve, water turbine, generator are closed; When releasing ability, second valve, the 3rd valve opening, first valve, motor, water pump are closed.
A kind of miniature compressed-air energy-storage system that draws water comprises draw water energy storage unit, barometric tank, wet pit, valve and aqueduct; Wherein:
The energy storage unit that draws water is the reversible energy storage unit that draws water, and comprises reversible motor generator, reversible pump turbine, and the transmission shaft of reversible motor generator and reversible pump turbine is affixed;
The reversible energy storage unit that draws water interlinks with barometric tank inner chamber, wet pit respectively through aqueduct, a plurality of valve;
Its workflow is:
During energy storage, open a plurality of valves, start reversible motor generator driving water pump water is pressed into the storage of barometric tank pressurized air from wet pit through aqueduct, a plurality of valve; When releasing ability, open a plurality of valves, the high-pressure air in the barometric tank goes out hydraulic pressure, and through aqueduct, a plurality of valve driving reversible pump turbine, water turbine drives generator for electricity generation.
The described compressed-air energy-storage system that draws water, its said a plurality of valves are two, are located at the both sides of the energy storage unit that draws water respectively, and second valve is positioned at the energy storage unit upper reaches of drawing water, and the 3rd valve is positioned at the energy storage unit downstream of drawing water.
The described compressed-air energy-storage system that draws water, the power supply of its said actuating motor are wherein one or more of conventional power plant low ebb (at a low price) electricity, nuclear power, wind-powered electricity generation, solar electrical energy generation, water power or tidal power generation.
The described compressed-air energy-storage system that draws water, its said thermal energy storage process is launched when electric power low ebb (at a low price), renewable energy power generation redundancy; Exoergic process is at peak of power consumption (at high price), electric power accident, launch when renewable energy power generation is undesirable.
The described compressed-air energy-storage system that draws water, it is when many water pumps, water turbine or reversible pump turbine, and many water pumps, water turbine or reversible pump turbines are series connection form or parallel form; In the parallel form, each split axle and main driving axle are dynamically connected.
The described compressed-air energy-storage system that draws water, its said barometric tank is one of them of vertical or horizontal air sac type, diaphragm type, full-replacement type.
The described compressed-air energy-storage system that draws water, its said wet pit is installed in ground or underground.
The described compressed-air energy-storage system that draws water, its said water pump, reversible pump turbine, its water pump are impeller pump or positive displacement pump; Its water turbine is reaction turbine or impulse turbine.
The described compressed-air energy-storage system that draws water, its said impeller pump, for axial flow, mixed-flow or centrifugal one of them; Positive displacement pump, for gear pump, screw pump, Roots pump or sliding vane pump one of them.
The described compressed-air energy-storage system that draws water, its said reaction turbine, for axial flow, mixed-flow, diagonal flow type or tubular one of them; Impulse turbine, for water bucket type, tilt-impulse type or double click type one of them.
The described compressed-air energy-storage system that draws water during its energy storage, the flow through control of pump, is closed down the part water pump and is regulated energy storage capacity; Release can the time, the flow through the control water turbine, close down the part water turbine and regulate generating capacity.
The invention has the advantages that: utilize the work characteristics of barometric tank, make draw water energy storage and compressed-air energy-storage system microminiaturized, thereby solved energy storage and conventional compression air energy-storage system the dependence problem of drawing water on a large scale geographical conditions.Have simultaneously cost low, do not receive the energy storage cycle limit, be applicable to all kinds power supply, characteristics such as environmentally friendly, have broad application prospects.
Description of drawings
Fig. 1 is draw water embodiment's 1 structural representation of compressed-air energy-storage system of the present invention;
Fig. 2 is draw water embodiment's 2 structural representations of compressed-air energy-storage system of the present invention;
Fig. 3 is draw water embodiment's 3 structural representations of compressed-air energy-storage system of the present invention;
Fig. 4 is draw water embodiment's 4 structural representations of compressed-air energy-storage system of the present invention;
Fig. 5 is draw water embodiment's 5 structural representations of compressed-air energy-storage system of the present invention;
Fig. 6 is draw water embodiment's 6 structural representations of compressed-air energy-storage system of the present invention;
Fig. 7 is draw water embodiment's 7 structural representations of compressed-air energy-storage system of the present invention;
Fig. 8 is draw water embodiment's 8 structural representations of compressed-air energy-storage system of the present invention.
Embodiment
The invention discloses a kind of compressed-air energy-storage system that draws water, it low power consumption through water pump water is pressed into from wet pit barometric tank make jar in gas be compressed, can store thereby electric energy is converted into the interior of air; In peak of power consumption, barometric tank mesohigh air goes out hydraulic pressure, drives water turbine and drives generator for electricity generation through aqueduct.It utilizes the barometric tank work characteristics, makes draw water energy storage and compressed-air energy-storage system microminiaturized, thereby has solved energy-storage system and the conventional compression air energy-storage system dependence problem to geographical conditions of drawing water on a large scale.Have simultaneously cost low, do not receive the energy storage cycle limit, be applicable to all kinds power supply, characteristics such as environmentally friendly, have broad application prospects.
Embodiment:
Fig. 1 is the embodiment 1 of the compressed-air energy-storage system that draws water of the present invention.The four machine formulas of the present invention compressed-air energy-storage system that draws water, it adopts the four machine formulas energy storage unit that draws water, and barometric tank is vertical air sac type.Wherein, wet pit 1, aqueduct 2,4,6,8,10,11,13, the four machine formulas energy storage unit 5 that draws water, valve 3,9,12 and barometric tank 7.The four machine formulas energy storage unit that draws water comprises motor, water pump, water turbine and generator; The transmission shaft of motor and water pump is affixed, and the transmission shaft of generator and water turbine is affixed.
During energy storage, valve 3 is opened, and valve 9,12 is closed, and low ebb (at a low price) electricity drives the four machine formulas energy storage unit 5 that draws water, and water is pressed into barometric tank 7 through aqueduct 2,4,6 jar interior gas is compressed.Thermal energy storage process finishes, and valve 3 is closed.Release can the time, valve 9,12 is opened, valve 3 is closed, barometric tank 7 mesohigh air are delivered to wet pit 1 with water through aqueduct 8,10,11,13 and valve 9,12, and the four machine formulas that drive energy storage unit 5 generating of drawing water.Exoergic process finishes, and valve 9,12 is closed.
Generally speaking, operation when energy storage is different with exoergic process, during energy storage, four machine formulas the draw water water pump and the motor work of energy storage unit 5, water turbine and generator are closed; Release can the time then opposite, four machine formulas the draw water water turbine and the generator work of energy storage unit 5, water pump and motor are closed.
Fig. 2 is the embodiment 2 of the compressed-air energy-storage system that draws water of the present invention.The three machine formulas of the present invention compressed-air energy-storage system that draws water, its agent structure is identical with embodiment 1, but adopts the three machine formulas energy storage unit that draws water to replace four machine formulas among the embodiment 1 energy storage unit that draws water.Wherein, wet pit 1, aqueduct 2,4,6,8,10,11,13, the three machine formulas energy storage unit 5 that draws water, valve 3,9,12 and barometric tank 7.The three machine formulas energy storage unit that draws water comprises water turbine, water pump and reversible motor generator; The transmission shaft of water pump and water turbine and reversible motor generator is affixed.
During energy storage, valve 3 is opened, and valve 9,12 is closed, and low ebb (at a low price) electricity drives the three machine formulas energy storage unit 5 that draws water, and water is pressed into barometric tank 7 through aqueduct 2,4,6 jar interior gas is compressed.Thermal energy storage process finishes, and valve 3 is closed.Release can the time, valve 9,12 is opened, valve 3 is closed, barometric tank 7 mesohigh air are delivered to wet pit 1 with water through aqueduct 8,10,11,13 and valve 9,12, and the three machine formulas that drive energy storage unit 5 generating of drawing water.Exoergic process finishes, and valve 9,12 is closed.
Generally speaking, operation when energy storage is different with exoergic process, during energy storage, three machine formulas the draw water water pump and the motor work of energy storage unit 5, water turbine and generator are closed; Release can the time then opposite, three machine formulas the draw water water turbine and the generator work of energy storage unit 5, water pump and motor are closed.
Fig. 3 is the embodiment 3 of the compressed-air energy-storage system that draws water of the present invention.The reversible of the present invention compressed-air energy-storage system that draws water, its agent structure is identical with embodiment 1, but adopts the reversible energy storage unit that draws water to replace four machine formulas among the embodiment 1 energy storage unit that draws water.Wherein, wet pit 1, aqueduct 8,10,11,13, the reversible energy storage unit 5 that draws water, valve 9,12 and barometric tank 7.The reversible energy storage unit that draws water comprises reversible motor generator and reversible pump turbine; The transmission shaft of reversible motor generator and reversible pump turbine is affixed.
During energy storage, valve 9,12 is opened, and low ebb (at a low price) electricity drives the reversible energy storage unit 5 that draws water, and water is pressed into barometric tank 7 through aqueduct 13,11,10,8 and valve 12,9 jar interior gas is compressed.Thermal energy storage process finishes, and valve 9,12 is closed.Release can the time, valve 9,12 is opened, barometric tank 7 mesohigh air are delivered to wet pit 1 with water through aqueduct 8,10,11,13 and valve 9,12, and drive reversible energy storage unit 5 generatings of drawing water.Exoergic process finishes, and valve 9,12 is closed.
Generally speaking, operation when energy storage is different with exoergic process, during energy storage, the reversible energy storage unit 5 that draws water is worked under water pump-electric motor mode; Then opposite when releasing ability, the reversible energy storage unit 5 that draws water is worked under water turbine-generator mode.
Fig. 4 is the embodiment 4 of the compressed-air energy-storage system that draws water of the present invention.The reversible of the present invention compressed-air energy-storage system that draws water, its agent structure is identical with embodiment 3, but adopts the diaphragm type barometric tank and replace air sac type barometric tank among the embodiment 3, and barrier film is divided into two-part up and down with barometric tank.Wherein, wet pit 1, aqueduct 8,10,11,13, the reversible energy storage unit 5 that draws water, valve 9,12 and barometric tank 14.The reversible energy storage unit that draws water comprises reversible motor generator and reversible pump turbine; The transmission shaft of reversible motor generator and reversible pump turbine is affixed.
Each parts coupled condition, energy storage and the exoergic process of this system also has the mode of operation of pumped storage unit and embodiment 3 basic identical.
The reversible energy storage unit that draws water also can be four machine formulas energy storage unit or the three machine formulas energy storage unit that draws water that draws water, and its agent structure is identical with embodiment 1,2 respectively.
Fig. 5 is the embodiment 5 of the compressed-air energy-storage system that draws water of the present invention.The reversible of the present invention compressed-air energy-storage system that draws water, its agent structure is identical with embodiment 4, but in diaphragm type barometric tank septation barometric tank is divided into left and right sides two-part.Wherein, wet pit 1, aqueduct 8,10,11,13, the reversible energy storage unit 5 that draws water, valve 9,12 and barometric tank 15.The reversible energy storage unit that draws water comprises reversible motor generator and reversible pump turbine; The transmission shaft of reversible motor generator and reversible pump turbine is affixed.
Each parts coupled condition, energy storage and the exoergic process of this system also has the mode of operation of pumped storage unit and embodiment 4 basic identical.
The reversible energy storage unit that draws water also can be four machine formulas energy storage unit or the three machine formulas energy storage unit that draws water that draws water, and its agent structure is identical with embodiment 1,2 respectively.
Fig. 6 is the embodiment 6 of the compressed-air energy-storage system that draws water of the present invention.The reversible of the present invention compressed-air energy-storage system that draws water, its agent structure is identical with embodiment 4, but adopts the full-replacement type barometric tank and replace embodiment's 4 septation formula barometric tanks, can increase barometric tank water storage capacity like this.Wherein, wet pit 1, pipeline 8,10,11,13,17,19, the reversible energy storage unit 5 that draws water, valve 9,12,18, barometric tank 16 and gas cylinder 20.The reversible energy storage unit that draws water comprises reversible motor generator and reversible pump turbine; The transmission shaft of reversible motor generator and reversible pump turbine is affixed.
During energy storage, valve 12,9,18 is opened, and low ebb (at a low price) electricity drives the reversible energy storage unit 5 that draws water, and water is sent into barometric tank 16 through pipeline 13,11,10,8 and valve 12,9, and jar interior gas is pressed in the gas cylinder 20 through pipeline 17,19 and valve 18.Thermal energy storage process finishes, and valve 12,9,18 is closed.Release can the time, valve 18,9,12 is opened, the air in the gas cylinder 20 goes out the hydraulic pressure in the barometric tank 16 through pipeline 19,17 and valve 18, and delivers to wet pit 1 through pipeline 8,10,11,13 and valve 9,12, and drives reversible energy storage unit 5 generatings of drawing water.Exoergic process finishes, and valve 18,9,12 is closed.
The mode of operation of the reversible energy storage unit that draws water in the system is identical with embodiment 4.
The reversible energy storage unit that draws water also can be four machine formulas energy storage unit or the three machine formulas energy storage unit that draws water that draws water, and its agent structure is identical with embodiment 1,2 respectively.
Fig. 7 is the embodiment 7 of the compressed-air energy-storage system that draws water of the present invention.The reversible of the present invention compressed-air energy-storage system that draws water, its agent structure is identical with embodiment 4, but adopts horizontal diaphragm type barometric tank and replace vertical diaphragm type barometric tank among the embodiment 4.Wherein, wet pit 1, aqueduct 8,10,11,13, the reversible energy storage unit 5 that draws water, valve 9,12 and barometric tank 21.The reversible energy storage unit that draws water comprises reversible motor generator and reversible pump turbine; The transmission shaft of reversible motor generator and reversible pump turbine is affixed.
Each parts coupled condition, energy storage and the exoergic process of this system also has the mode of operation of pumped storage unit and embodiment 4 basic identical.
The reversible energy storage unit that draws water also can be four machine formulas energy storage unit or the three machine formulas energy storage unit that draws water that draws water, and its agent structure is identical with embodiment 1,2 respectively.
Barometric tank can also be air sac type or full-replacement type.
Fig. 8 is the embodiment 8 of the compressed-air energy-storage system that draws water of the present invention.The compressed-air energy-storage system that draws water of ground reservoir of the present invention, its agent structure is identical with embodiment 4, and wet pit is installed on the ground, adopts vertical diaphragm type barometric tank, and barrier film is divided into two-part up and down with barometric tank.Wherein, wet pit 1, aqueduct 23,24,26,11,10,8, the reversible energy storage unit 5 that draws water, valve 9,22,25, barometric tank 14, ground 27.The reversible energy storage unit that draws water comprises reversible motor generator and reversible pump turbine; The transmission shaft of reversible motor generator and reversible pump turbine is affixed.
Valve the 22, the 25th, one-way valve, 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) electricity drives the reversible energy storage unit 5 that draws water, and water is pressed into barometric tank 14 through pipeline 24,26,11,10,8 and valve 25,9 jar interior gas is compressed.Thermal energy storage process finishes, and valve 9,25 is closed.Release can the time, valve 22,9 is opened, valve 25 is closed, the air in the barometric tank 14 are delivered to wet pit 1 with water through pipeline 8,10,11,23 and valve 9,22, and drive reversible energy storage unit 5 generatings of drawing water.Exoergic process finishes, and valve 22,9 is closed.
The mode of operation of the reversible energy storage unit that draws water in the system is identical with embodiment 4.
The reversible energy storage unit that draws water also can be four machine formulas energy storage unit or the three machine formulas energy storage unit that draws water that draws water, and its agent structure is identical with embodiment 1,2 respectively.
Diaphragm type, air sac type or the full-replacement type of part about the barometric tank structure also can be barrier film barometric tank is divided into, supporting form also can be horizontal.
Claims (14)
1. the compressed-air energy-storage system that draws water comprises draw water energy storage unit, barometric tank, wet pit, valve and aqueduct; It is characterized in that:
The energy storage unit that draws water has a motor, a water pump, a water turbine, a generator at least, and wet pit interlinks through the pump entrance of aqueduct, first valve and the energy storage unit that draws water, and exit of pump interlinks with inner chamber through the barometric tank inlet through aqueduct;
The barometric tank outlet interlinks through the water turbine and the wet pit of aqueduct, a plurality of valve, the energy storage unit that draws water;
Motor drive shaft and water pump rotating shaft are affixed, and water turbine live axle and alternator shaft are affixed;
Its workflow is:
During energy storage, actuating motor drives water pump water is pressed into the storage of barometric tank pressurized air from wet pit through aqueduct, valve; When releasing ability, the high-pressure air in the barometric tank goes out hydraulic pressure, and through aqueduct, valve driving water turbine, water turbine drives generator for electricity generation.
2. the compressed-air energy-storage system that draws water according to claim 1 is characterized in that: said a plurality of valves are two, are located at the water turbine both sides of the energy storage unit that draws water respectively, and second valve is positioned at the water turbine upper reaches, and the 3rd valve is positioned at the water turbine downstream.
3. the compressed-air energy-storage system that draws water according to claim 1; It is characterized in that: the said energy storage unit that draws water is four machine formulas or the three machine formulas energy storage unit that draws water, during energy storage; First valve opening, second valve, the 3rd valve, water turbine, generator are closed; When releasing ability, second valve, the 3rd valve opening, first valve, motor, water pump are closed.
4. the miniature compressed-air energy-storage system that draws water comprises draw water energy storage unit, barometric tank, wet pit, valve and aqueduct; It is characterized in that:
The energy storage unit that draws water is the reversible energy storage unit that draws water, and comprises reversible motor generator, reversible pump turbine, and the transmission shaft of reversible motor generator and reversible pump turbine is affixed;
The reversible energy storage unit that draws water interlinks with barometric tank inner chamber, wet pit respectively through aqueduct, a plurality of valve;
Its workflow is:
During energy storage, open a plurality of valves, start reversible motor generator driving water pump water is pressed into the storage of barometric tank pressurized air from wet pit through aqueduct, a plurality of valve; When releasing ability, open a plurality of valves, the high-pressure air in the barometric tank goes out hydraulic pressure, and through aqueduct, a plurality of valve driving reversible pump turbine, water turbine drives generator for electricity generation.
5. the compressed-air energy-storage system that draws water according to claim 4; It is characterized in that: said a plurality of valves are two, are located at the both sides of the energy storage unit that draws water respectively; Second valve is positioned at the energy storage unit upper reaches of drawing water, and the 3rd valve is positioned at the energy storage unit downstream of drawing water.
6. according to claim 1 or the 4 described compressed-air energy-storage systems that draw water, it is characterized in that: the power supply of said actuating motor is wherein one or more of conventional power plant low ebb electricity, nuclear power, wind-powered electricity generation, solar electrical energy generation, water power or tidal power generation.
7. according to claim 1 or the 4 described compressed-air energy-storage systems that draw water, it is characterized in that: said thermal energy storage process is launched when electric power low ebb, renewable energy power generation redundancy; Exoergic process is at peak of power consumption, electric power accident, launch when renewable energy power generation is undesirable.
8. according to claim 1 or the 4 described compressed-air energy-storage systems that draw water; It is characterized in that: when many water pumps, water turbine or reversible pump turbine, many water pumps, water turbine or reversible pump turbines are series connection form or parallel form; In the parallel form, each split axle and main driving axle are dynamically connected.
9. according to claim 1 or the 4 described compressed-air energy-storage systems that draw water, it is characterized in that: said barometric tank is one of them of vertical or horizontal air sac type, diaphragm type, full-replacement type.
10. according to claim 1 or the 4 described compressed-air energy-storage systems that draw water, it is characterized in that: said wet pit is installed in ground or underground.
11. according to claim 1 or the 4 described compressed-air energy-storage systems that draw water, it is characterized in that: said water pump, reversible pump turbine, its water pump are impeller pump or positive displacement pump; Its water turbine is reaction turbine or impulse turbine.
12. the compressed-air energy-storage system that draws water according to claim 11 is characterized in that: said impeller pump, for axial flow, mixed-flow or centrifugal one of them; Positive displacement pump, for gear pump, screw pump, Roots pump or sliding vane pump one of them.
13. the compressed-air energy-storage system that draws water according to claim 11 is characterized in that: said reaction turbine, for axial flow, mixed-flow, diagonal flow type or tubular one of them; Impulse turbine, for water bucket type, tilt-impulse type or double click type one of them.
14., it is characterized in that: during energy storage, the flow through control of pump, close down the part water pump and regulate energy storage capacity according to claim 1 or the 4 described compressed-air energy-storage systems that draw water; Release can the time, the flow through the control water turbine, close down the part water turbine and regulate generating capacity.
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Cited By (25)
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| CN103161653A (en) * | 2013-02-26 | 2013-06-19 | 青岛格兰德新能源有限公司 | Hydraulic power potential energy comprehensive utilization system |
| CN103470432A (en) * | 2013-09-26 | 2013-12-25 | 廖新军 | Pressure liquid flow power generation device and liquid pressurized spray device |
| CN103470432B (en) * | 2013-09-26 | 2016-05-11 | 廖新军 | Pressurised fluid stream TRT |
| CN103821661B (en) * | 2014-02-27 | 2017-01-11 | 华北电力大学 | Pumped storage system based on gas supercharging technology |
| CN103821661A (en) * | 2014-02-27 | 2014-05-28 | 华北电力大学 | Pumped storage system based on gas supercharging technology |
| CN104100441A (en) * | 2014-07-01 | 2014-10-15 | 西安交通大学 | Water-gas common-cabin electric power energy storage system utilizing high pressure gasholder to maintain constant pressure |
| CN104481783A (en) * | 2014-11-15 | 2015-04-01 | 大连天润能源技术开发有限公司 | Hydraulic energy comprehensive generation system and method thereof |
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| CN105756843A (en) * | 2016-03-18 | 2016-07-13 | 西安交通大学 | Double-shell type pumped storage system |
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| CN107061994A (en) * | 2017-06-13 | 2017-08-18 | 哈尔滨工业大学（威海） | A kind of seabed compression air energy-storing apparatus of low compression ratio |
| CN107917074A (en) * | 2017-11-09 | 2018-04-17 | 华北电力大学 | A kind of Special air compressor system to constant-pressure gas storage source supply |
| CN107917074B (en) * | 2017-11-09 | 2020-06-09 | 华北电力大学 | Special air compressor system for supplying air to constant-pressure air storage source |
| CN109826741A (en) * | 2019-02-20 | 2019-05-31 | 西安交通大学 | It is a kind of to discard the variable working condition in tunnel or bomb shelter as energy-storing container without dam pumped storage and method |
| CN109989870A (en) * | 2019-04-12 | 2019-07-09 | 柳西普 | A kind of hydroelectric installation |
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| WO2021250666A1 (en) * | 2020-06-09 | 2021-12-16 | Storage Drop Ltd | Hydraulic compressed air energy storage system |
| CN111740487A (en) * | 2020-06-19 | 2020-10-02 | 中国电建集团青海省电力设计院有限公司 | Flexible direct current distribution network for high-altitude area and distributed power supply access |
| CN111692070A (en) * | 2020-07-02 | 2020-09-22 | 上海发电设备成套设计研究院有限责任公司 | Electric energy storage system and electric energy storage method |
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