CN108050026A - A kind of solar energy power plant and compressed-air energy storage unit associations running gear and its control method - Google Patents
A kind of solar energy power plant and compressed-air energy storage unit associations running gear and its control method Download PDFInfo
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- CN108050026A CN108050026A CN201711277637.5A CN201711277637A CN108050026A CN 108050026 A CN108050026 A CN 108050026A CN 201711277637 A CN201711277637 A CN 201711277637A CN 108050026 A CN108050026 A CN 108050026A
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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
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01B23/10—Adaptations for driving, or combinations with, electric generators
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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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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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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- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of solar energy power plant and compressed-air energy storage unit associations running gear, including：Solar energy power plant, compressed-air energy storage unit and heat-exchanger rig；The solar energy power plant includes solar energy focusing device, heat dump, heat reservoir, steam generator, steam turbine, generator, power grid and condenser；The compressed-air energy storage unit includes high-temperature tank, caisson, piston cylinder, liquid cell and drive apparatus；The heat-exchanger rig includes heat exchanger and water pump.When solar energy abundance, extra electric energy is stored by compression air energy-storing apparatus, the heat by compressed air release heats the condensed water of steam exhaust by heat-exchange device simultaneously, realizes the power storage on solar energy power plant power generation peak, the thermal energy that gas compression is also made full use of to discharge.It when solar energy deficiency, is generated electricity using compression air energy-storing apparatus, for supplementing the generated output of solar energy thermal-power-generating.
Description
Technical field
The invention belongs to new energy and power energy storage complex technique field, more particularly to a kind of solar energy power plant and compression
Air energy-storage units joint operating device and its control method.
Background technology
Day alternates with night, climate change and in one day the factors such as the fluctuation of intensity of solar radiation at any time influence so that
The acquisition of solar energy is always intermittently discontinuous.And the uncontrollability and randomness of solar radiation intensity cause solar power generation
System is difficult even running.Solar generator station address is predominantly located at the high area of direct solar radiation intensity, these areas
Atmospheric temperature is usually higher, therefore in solar heat power generation system condensing unit operational process, steam exhaust can not be effectively and timely
Heat dissipation condenses into water, and the operational efficiency of whole system is caused to decline.In view of the above problems, traditional solar energy power plant is introduced
Compressed air energy storage technology realizes that solar energy power plant and jointly controlling for compression air energy-storing apparatus are a kind of think ofs of innovation
Road.
The content of the invention
The purpose of the present invention is being directed to solar energy power plant electricity generation system even running problem, a kind of solar energy and pressure are proposed
Contracting air energy storage joint operating device realizes the steady output of solar energy power plant electric power and improves year utilization rate.In solar energy
In the case of abundance, compression air energy-storing apparatus work stores extra electric energy in energy storage state；In solar energy not
In the case of foot, compression air energy-storing apparatus is in generating state, maintains solar energy power plant stable operation.Meanwhile work as environment
When temperature is higher, Partial shrinkage air is subjected to expansion power generation, absorbs the heat of steam exhaust, accelerate the speed that steam exhaust condenses into water,
Improve the operational efficiency of whole system.
The present invention provides a kind of solar energy power plant and compressed-air energy storage unit associations running gear, including：The sun
It can thermo-power station, compressed-air energy storage unit and heat-exchanger rig；The solar energy power plant includes solar energy focusing device, heat absorption
Device, heat reservoir, steam generator, steam turbine, generator, power grid and condenser；The compressed-air energy storage unit includes height
Warm tank, caisson, first piston cylinder, the first liquid cell and the first drive apparatus；The heat-exchanger rig includes First Heat Exchanger
And water pump；The plunger shaft of the first piston cylinder is connected by fluid pipeline with high-temperature tank and the first liquid cell respectively, and first lives
The piston rod of plug cylinder connects the first drive apparatus, and the high-temperature tank is connected with caisson, the power grid and the first drive apparatus
It is connected by electric wire；The liquid of the First Heat Exchanger flows into end and outflow end and flows into and flow with the liquid of the first liquid cell successively
Outlet connects, and forms the circulatory system of closing；The leaving condenser water mouth, water pump, First Heat Exchanger inlet and outlet,
Steam generator is sequentially connected, and forms one-way system.
Further, the caisson includes transformation caisson and constant-pressure gas storage device；The transformation caisson bag
Include air accumulator；The constant-pressure gas storage device directly controls device and piston controller including water pump；The water pump directly controls
Including air accumulator, water pump, second liquid pond, water pump connects air accumulator and second liquid pond by fluid pipeline；The piston control
System includes air accumulator, second piston cylinder and second liquid pond, the plunger shaft of second piston cylinder by fluid pipeline respectively with gas storage
Tank is connected with second liquid pond, and the piston rod of first piston cylinder is coaxially connected with the piston rod of second piston cylinder.
Further, the compressed-air energy storage unit increases a cryogenic tank, the 3rd piston cylinder and the 3rd liquid cell, described
Cryogenic tank connects high-temperature tank and air accumulator, the plunger shaft of the 3rd piston cylinder by fluid pipeline respectively with the cryogenic tank and the 3rd
Liquid cell is connected, and the heat-exchanger rig increases by the second heat exchanger, and the liquid of second heat exchanger flows into and flows out port successively
End is flowed into the liquid of the 3rd liquid cell and outflow end is connected, and forms the circulatory system of closing.
Further, the compressed-air energy storage unit increases by two gas piston cylinders, the air inlet of the high-temperature tank and the
One gas is connected with the gas outlet of piston cylinder, and the gas outlet of high-temperature tank connects the air inlet of the second gas piston cylinder, during energy storage, gas
High-temperature gas equipressure is moved in high-temperature tank, is carried out isothermal with adiabatic compression, temperature rise is carried out in piston cylinder in the first gas
Compression, after the completion of compression, equipressure is moved in the second gas piston cylinder, in the second gas with carrying out adiabatic expansion in piston cylinder, temperature
Degree reduces, and cryogenic gas equipressure is moved in air accumulator or cryogenic tank, is prepared for isothermal expansion；During power generation, low temperature gas
Body moves to progress isothermal expansion hair in high-temperature tank in the second gas with adiabatic compression, temperature rise, then equipressure is carried out in piston cylinder
Electricity；Gas realizes Non-energy-consumption temperature transition of the gas between high temperature and low temperature with piston cylinder.
Further, when the piston rod of the piston cylinder is independently arranged, the first transmission of piston rod connection of first piston cylinder is set
It is standby；The piston rod of second piston cylinder connects the second drive apparatus, the piston rod connection generating equipment of the 3rd piston cylinder.
The present invention also provides a kind of control methods of above device, are specially：In the case of solar energy abundance, solar energy
The electric energy supply power grid that thermo-power station is sent, power grid provide a part of electrical energy transportation to the first drive apparatus, and the first drive apparatus pushes away
The piston rod movement of dynamic first piston cylinder makes gas carry out isotherm compression in high-temperature tank, after isotherm compression process, by height
Body of calming the anger is moved to from high-temperature tank in caisson, and the first drive apparatus promotes the piston rod movement of first piston cylinder to make the external world
Low-pressure gas enters high-temperature tank, and the liquid in high-temperature tank returns to the first liquid cell, and the heat released in gas compression processes leads to
First Heat Exchanger is crossed to heat the condensed water of steam exhaust；It is insufficient in solar energy, gases at high pressure are filled from gas storage
It puts and moves in high-temperature tank, gases at high pressure carry out isothermal expansion in high-temperature tank, and air work promotes the piston of first piston cylinder
Bar moves, and the power generation of the first drive apparatus is transported to power grid.
Further, in the case of solar energy abundance, the gases at high pressure part that isotherm compression in high-temperature tank generates is moved
It moving on in air accumulator, another part is moved in cryogenic tank or by the partial high pressure gas transfer in air accumulator into cryogenic tank,
Gas carries out isothermal expansion in cryogenic tank, after isothermal expansion process, absorbs steam exhaust heat by the second heat exchanger and is used for
The liquid in the 3rd liquid cell is heated, improves the steam exhaust condensation rate and efficiency of solar energy power plant, while gas expansion for doing work
The electrical energy transportation sent is to power grid.
Further, during energy storage, the energy consumption of the first drive apparatus drives the piston rod movement in piston cylinder, isotherm compression high-temperature tank
In gas, the energy consumption of the second drive apparatus drives the piston rod movement in piston cylinder, and gas moves to gas storage from high-temperature tank equipressure
In tank, the gas isothermal expansion in cryogenic tank promotes the piston rod movement in the 3rd piston cylinder, drives power generation；Power generation
When, the energy consumption of the second drive apparatus drives the piston rod movement in piston cylinder, and gas equipressure from air accumulator is moved in high-temperature tank,
Gases at high pressure carry out isothermal expansion in high-temperature tank, and the piston rod of piston cylinder promotes the movement of the first drive apparatus, it is defeated to send electric energy
It is sent to power grid.
Beneficial effects of the present invention：When solar energy abundance, extra electric energy is stored by compression air energy-storing apparatus
Come, while the heat of compressed air release is heated into the condensed water of steam exhaust by heat-exchange device, realize solar energy power plant
The power storage on power generation peak, the thermal energy that gas compression is also made full use of to discharge.When solar energy deficiency, stored up using compressed air
Energy device power generation, for supplementing the generated output of solar energy thermal-power-generating.It is higher in environment temperature, during condensing unit operational difficulties,
Partial high pressure gas is allowed to carry out expansion power generation, gas expansion absorbs the heat of steam exhaust, accelerates the speed for being condensed into water of steam exhaust, from
And improve the operational efficiency of whole device.
Description of the drawings
Fig. 1 is solar energy power plant of the present invention and compressed-air energy storage unit associations running gear structure chart.
Fig. 2 is the transformation caisson of solar energy power plant of the present invention and compressed-air energy storage unit associations running gear
Figure.
Fig. 3 is that the water pump of solar energy power plant of the present invention and compressed-air energy storage unit associations running gear directly controls perseverance
Press caisson figure.
Fig. 4 is that the piston of solar energy power plant of the present invention and compressed-air energy storage unit associations running gear controls constant pressure to store up
Device of air figure.
Fig. 5 is another structure chart of solar energy power plant of the present invention and compressed-air energy storage unit associations running gear.
Fig. 6 is the another structure chart of solar energy power plant of the present invention and compressed-air energy storage unit associations running gear.
Fig. 7 is the schematic diagram of first aspect of the present invention compression air energy-storing apparatus.
Fig. 8 is the schematic diagram of the compression air energy-storing apparatus of another program of the present invention.
Fig. 9 is the schematic diagram of the compression air energy-storing apparatus of yet another aspect of the present invention.
Specific embodiment
The present invention will be further described with specific implementation method below in conjunction with the accompanying drawings.
A kind of solar energy power plant and compressed-air energy storage unit associations running gear are as shown in Figure 1：The device is included too
Positive energy thermo-power station 9, compressed-air energy storage unit 16 and heat-exchanger rig 19.The solar energy power plant 9 is filled including solar focusing
Put 1, heat dump 2, heat reservoir 3, steam generator 4, steam turbine 5, generator 6, power grid 7 and condenser 8.The compressed air
Energy-storage units 16 include high-temperature tank 10, first piston cylinder 11, the first liquid cell 12, the first drive apparatus 13 and caisson 15.
The heat-exchanger rig 19 includes First Heat Exchanger 18 and water pump 17.
The plunger shaft of the first piston cylinder 11 is connected by fluid pipeline with 10 and first liquid cell 12 of high-temperature tank respectively,
The piston rod of first piston cylinder connects the first drive apparatus 13, and power grid 7 is connected with the first drive apparatus 13 by electric wire, the height
Warm tank 10 is connected with caisson 15.
The liquid of the First Heat Exchanger 18 flow into end and outflow end flowed into successively with the liquid of the first liquid cell 12 end and
Outflow end connects, and forms the circulatory system of closing, the water outlet of condenser 8, water pump 17, First Heat Exchanger 18 water inlet and go out
The mouth of a river, steam generator 4 are sequentially connected, and form one-way system.
The caisson 15 includes transformation caisson and constant-pressure gas storage device；The transformation caisson such as attached drawing 2
It is shown, including air accumulator 20；
The constant-pressure gas storage device directly controls device and piston controller including water pump；The water pump directly controls dress
It puts as shown in Figure 3, including air accumulator 20, water pump 21, second liquid pond 22, water pump 21 connects air accumulator 20 by fluid pipeline
With second liquid pond 22；
The piston controller as shown in Figure 4, including air accumulator 20, second piston cylinder 23 and second liquid pond 22,
The plunger shaft of second piston cylinder 23 is connected by fluid pipeline with air accumulator 20 and second liquid pond 22 respectively, first piston cylinder 11
Piston rod be coaxially connected with the piston rod of second piston cylinder 23.
The compressed-air energy storage unit has two kinds of methods of operation of energy storage and power generation (constant-pressure gas storage side controlled with piston
Exemplified by formula)：In the case of solar energy abundance, compression air energy-storing apparatus is operated in energy storage pattern.The electric energy that generator 6 is sent
Power grid 7 is transported to, power grid 7 provides electric energy for promoting piston rod movement, when piston rod moves right, valve A4, A5, A8~
A9 is opened, and valve A1~A3, A6~A7, A10~A11 are closed, and gas carries out isotherm compression in high-temperature tank 10, and gas is in high temperature
After the completion of being compressed in tank 10, when piston rod moves right, valve A2, A4~A5, A7~A8, A11 are opened, valve A1, A3,
A6, A9~A10 are closed, and gases at high pressure equipressure from high-temperature tank 10 is moved in air accumulator 20；After the completion of gas transfer, work as piston
When bar moves right, valve A1, A3, A6, A8~A9 are opened, and valve A2, A4~A5, A7, A10~A11 are closed, low in air
Body of calming the anger enters in high-temperature tank 10, prepares for thermal energy storage process next time, meanwhile, the liquid in high-temperature tank 10 returns to the first liquid
Pond 12, the liquid in the first liquid cell 12 pass through First Heat Exchanger 18 and carry out heat exchange with the water after steam exhaust condensation.
Insufficient in solar energy, compression air energy-storing apparatus is operated in power generation mode.When piston rod transports to the right work(,
Valve A2~A3, A6~A7, A9~A10 are opened, and valve A1, A4~A5, A8, A11 are closed, and gas is migrated from air accumulator 20 is isobaric
Into high-temperature tank 10.After the completion of gas transfer, gases at high pressure carry out isothermal expansion in high-temperature tank 10, when promote piston rod to the right
During movement, valve A3, A6, A8~A9 are opened, and valve A1, A4~A5, A7, A10~A11 are closed, the heat that isothermal expansion absorbs
It can be provided by heat reservoir 3, since the heat needed for gases at high pressure isothermal expansion is far smaller than generated needed for high temperature and high pressure steam
Heat, therefore requirement of this association system to heat reservoir substantially reduces.Gas isothermal expansion promotes piston rod movement, sends
Electrical energy transportation is to power grid.After the completion of gas expansion, power generation process terminates, when piston rod moves right, valve A1, A4~A5,
A8~A9 is opened, and valve A2~A3, A6~A7, A10~A11 are closed, and the gas expanded is discharged into air, for next time
Power generation process is prepared.
Attached drawing 7 is the schematic diagram of 1 compression air energy-storing apparatus of implementation, wherein 1. representing gas in temperature and pressure such as high-temperature tanks
Compression process (i.e. energy storage pattern) 2. represents gas in cryogenic tank isothermal expansion process (i.e. power generation mode).
Another program of a kind of solar energy power plant and compressed-air energy storage unit associations running gear was as shown in figure 5, should
Scheme is with the addition of equipment on the basis of said program, and the compressed-air energy storage unit increases a cryogenic tank the 25, the 3rd and lives
26 and the 3rd liquid cell 27 of plug cylinder, the heat-exchanger rig increase the second heat exchanger 24 newly, and the cryogenic tank 25 connects 10 He of high-temperature tank
Air accumulator 20, the plunger shaft of the 3rd piston cylinder 26 are connected by fluid pipeline with 25 and the 3rd liquid cell 27 of cryogenic tank respectively, the
The liquid of two heat exchangers 24 flows into end and outflow end and is connected successively with the liquid of the 3rd liquid cell 27 inflow end and outflow end, is formed
The circulatory system of closing.
In the case of solar energy abundance, the gases at high pressure part equipressure that isotherm compression in high-temperature tank generates can be moved
It moves on in air accumulator, another part equipressure is moved in cryogenic tank, also can be by the isobaric migration of partial high pressure gas in air accumulator
Into cryogenic tank, gas carries out isothermal expansion in cryogenic tank, and absorbing steam exhaust heat by the second heat exchanger is used for gas expansion,
Improve the steam exhaust condensation rate and efficiency of solar energy power plant, while the electrical energy transportation that sends of gas expansion for doing work is to power grid.
Solar energy power plant usually build the big area of direct solar radiation intensity in, these regional environment temperatures are higher,
So that the condensation portion operation of solar energy power plant is more difficult, conventional condensing unit can not make steam exhaust quickly distribute heat,
Water is condensed into, so as to influence the operational efficiency of entire solar energy power plant.It can be fine using high pressure gas expansion endothermic character
Solve the problems, such as this.It, can be by the gases at high pressure one of isotherm compression generation in high-temperature tank in the case of solar energy abundance
Pressure of grading is moved in air accumulator 20, and another part equipressure is moved in cryogenic tank 25, also can be high by the part in air accumulator 20
Body equipressure of calming the anger is moved in cryogenic tank 25.Gases at high pressure carry out isothermal expansion, while the 3rd liquid cell 27 in cryogenic tank 25
Liquid heat exchange is carried out by the second heat exchanger 24 and steam exhaust, absorb the heat of steam exhaust, accelerate the speed that steam exhaust condenses into water,
Improve the speed of service of solar energy power plant.For coaxial piston bar, gas isotherm compression consumes electric energy, low temperature in high-temperature tank 10
Gas isothermal expansion sends electric energy in tank 25, and the power difference of the two is provided by the electric energy of power grid 7.
Attached drawing 8 is the schematic diagram of 2 compression air energy-storing apparatus of implementation, wherein 1. representing gas in temperature and pressure such as high-temperature tanks
2. compression process represents that gases at high pressure are transferred to by high-temperature tank in cryogenic tank, 3. represents gas in cryogenic tank isothermal expansion process.
The yet another aspect of a kind of solar energy power plant and compressed-air energy storage unit associations running gear was as shown in fig. 6, should
Scheme is with the addition of equipment on the basis of Fig. 5 schemes, and the compressed-air energy storage unit increases by two gas piston cylinders, high-temperature tank
10 gentle can be combined with piston cylinder, ambient atmos enter 10 middle high-pressure gas of high-temperature tank moved to by 10 equipressure of high-temperature tank it is low
In warm tank 25, gas directly carries out heat exchange with liquid, also, high-temperature gas, in the interior storage of air accumulator 20, temperature can decline,
Energy loss is caused, using gas piston cylinder, gas Non-energy-consumption temperature transition between high temperature and low temperature can be made, improve energy
Utilization rate.The air inlet of high-temperature tank 10 is connected with the first gas with the gas outlet of piston cylinder 29, the gas outlet connection of high-temperature tank 10
The air inlet of second gas piston cylinder 31, during energy storage, in the first gas with adiabatic compression is carried out in piston cylinder 29, temperature raises gas
It is extremely consistent with gas temperature in high-temperature tank, high-temperature gas equipressure is moved in high-temperature tank 10, carries out isotherm compression, compression is completed
Afterwards, equipressure is moved in the second gas piston cylinder 31, carries out adiabatic expansion with piston cylinder 31 is interior in the second gas, temperature reduces, will
Cryogenic gas equipressure is moved in air accumulator 20 or cryogenic tank 25, is prepared for isothermal expansion.During power generation, cryogenic gas is
Two gas move to progress isothermal expansion power generation in high-temperature tank 10 with adiabatic compression, temperature rise, then equipressure is carried out in piston cylinder 31.
Gas realizes Non-energy-consumption temperature transition of the gas between high temperature and low temperature with piston cylinder.
The piston rod of the piston cylinder 11,23,26 is independently arranged.During energy storage, the energy consumption of the first drive apparatus 13 drives first
Piston rod movement in piston cylinder 11, the gas in isotherm compression high-temperature tank 10, the energy consumption of the second drive apparatus 33 drive second to live
Piston rod movement in plug cylinder 23, gas are moved to from 10 equipressure of high-temperature tank in air accumulator 20, the gas isothermal in cryogenic tank 25
The piston rod movement in the 3rd piston cylinder 26 is expanded against, generating equipment 34 is driven to generate electricity.During power generation, the second drive apparatus 33 consumes
The piston rod movement in second piston cylinder 23 can be driven, gas equipressure from air accumulator 20 is moved in high-temperature tank 10, high pressure gas
Body carries out isothermal expansion in high-temperature tank 10, and the piston rod of piston cylinder 11 promotes the first drive apparatus 13 to move, it is defeated to send electric energy
It is sent to power grid.
Attached drawing 9 is the schematic diagram of 3 compression air energy-storing apparatus of implementation, wherein 1. representing gas in temperature and pressure such as high-temperature tanks
2. compression process represents the adiabatic expansion of high-temperature gas in gas piston cylinder, 3. represent gas in cryogenic tank isothermal expansion mistake
Journey, 4. in gas piston cylinder cryogenic gas adiabatic compression process.
The effect of water pump 14,28 is to realize the liquid circulation in high-temperature tank and cryogenic tank so that liquids and gases are abundant
Isothermal expansion and isotherm compression are realized in contact.
The constant-pressure gas storage device that water pump directly controls is adjusted by adjusting the disengaging water of water pump 21 in air accumulator 20
Gas pressure intensity achievees the purpose that constant-pressure gas storage.
Technical scheme is described in detail in above-described embodiment.It is apparent that the present invention is not limited it is retouched
The embodiment stated.Based on the embodiments of the present invention, those skilled in the art can also make a variety of variations accordingly, but appoint
What is equal with the present invention or similar variation belongs to the scope of protection of the invention.
Claims (8)
1. a kind of solar energy power plant and compressed-air energy storage unit associations running gear, which is characterized in that including：Solar heat
Power station, compressed-air energy storage unit and heat-exchanger rig；The solar energy power plant includes solar energy focusing device, heat dump, storage
Hot systems, steam generator, steam turbine, generator, power grid and condenser；The compressed-air energy storage unit include high-temperature tank,
Caisson, first piston cylinder, the first liquid cell and the first drive apparatus；The heat-exchanger rig includes First Heat Exchanger and water
Pump；The plunger shaft of the first piston cylinder is connected by fluid pipeline with high-temperature tank and the first liquid cell respectively, first piston cylinder
Piston rod connect the first drive apparatus, the high-temperature tank is connected with caisson, and the power grid passes through with the first drive apparatus
Electric wire is connected；The liquid of the First Heat Exchanger flows into end and outflow end and flows into end and outflow with the liquid of the first liquid cell successively
End connection forms the circulatory system of closing；The leaving condenser water mouth, water pump, the inlet and outlet of First Heat Exchanger, steaming
Vapour generator is sequentially connected, and forms one-way system.
2. the apparatus according to claim 1, which is characterized in that the caisson includes transformation caisson and constant pressure is stored up
Device of air；The transformation caisson includes air accumulator；The constant-pressure gas storage device directly controls device and piston including water pump
Control device；The water pump, which directly controls device, includes air accumulator, water pump, second liquid pond, and water pump is connected by fluid pipeline
Air accumulator and second liquid pond；The piston controller includes air accumulator, second piston cylinder and second liquid pond, second piston
The plunger shaft of cylinder is connected by fluid pipeline with air accumulator and second liquid pond respectively, and the piston rod of first piston cylinder and second is lived
The piston rod of plug cylinder is coaxially connected.
3. the apparatus of claim 2, which is characterized in that one cryogenic tank of the compressed-air energy storage unit increase,
3rd piston cylinder and the 3rd liquid cell, the cryogenic tank connect the high-temperature tank and the air accumulator, the piston of the 3rd piston cylinder
Chamber is connected by fluid pipeline with the cryogenic tank and the 3rd liquid cell respectively, and the heat-exchanger rig increases the second heat exchanger, institute
It states the liquid inflow end of the second heat exchanger and outflow end flows into end with the liquid of the 3rd liquid cell successively and outflow end is connected, formed
The circulatory system of closing.
4. device according to claim 3, which is characterized in that the compressed-air energy storage unit increases by two gas pistons
Cylinder, the air inlet of high-temperature tank are connected with the first gas with the gas outlet of piston cylinder, and the gas outlet of high-temperature tank connects the second gas piston
The air inlet of cylinder, during energy storage, for gas in the first gas with adiabatic compression is carried out in piston cylinder, temperature rise is isobaric by high-temperature gas
It moves in high-temperature tank, carries out isotherm compression, after the completion of compression, equipressure is moved in the second gas piston cylinder, is used in the second gas
Adiabatic expansion is carried out in piston cylinder, temperature reduces, cryogenic gas equipressure is moved in air accumulator or cryogenic tank, is that isothermal is swollen
It is swollen to prepare；During power generation, cryogenic gas is moved in the second gas with adiabatic compression, temperature rise, then equipressure is carried out in piston cylinder
Isothermal expansion power generation is carried out in high-temperature tank；Gas realizes Non-energy-consumption temperature transition of the gas between high temperature and low temperature with piston cylinder.
5. device as claimed in claim 3, which is characterized in that when the piston rod of the piston cylinder is independently arranged, first piston
The piston rod of cylinder connects the first drive apparatus；The piston rod of second piston cylinder connects the second drive apparatus, the work of the 3rd piston cylinder
Stopper rod connects generating equipment.
6. the control method of solar energy power plant as described in claim 1 and compressed-air energy storage unit associations running gear,
It is characterized in that, in the case of solar energy abundance, the electric energy that solar energy power plant is sent supplies power grid, and power grid provides part electricity
Can be conveyed to the first drive apparatus, the first drive apparatus promote the piston rod movement of first piston cylinder make gas in high-temperature tank into
Row isotherm compression after isotherm compression process, gases at high pressure is moved to from high-temperature tank in caisson, the first drive apparatus
Promoting the piston rod movement of first piston cylinder makes extraneous low-pressure gas enter high-temperature tank, and the liquid in high-temperature tank returns to the first liquid
Body pond, the heat released in gas compression processes heat the condensed water of steam exhaust by First Heat Exchanger；In the sun
In the case of energy is insufficient, gases at high pressure are moved to from caisson in high-temperature tank, gases at high pressure carry out isothermal in high-temperature tank
Expansion, air work promote the piston rod movement of first piston cylinder, and the power generation of the first drive apparatus is transported to power grid.
7. the control method of solar energy power plant as claimed in claim 3 and compressed-air energy storage unit associations running gear,
It is characterized in that, in the case of solar energy abundance, the gases at high pressure part that isotherm compression in high-temperature tank generates is moved into storage
In gas tank, another part is moved in cryogenic tank or by the partial high pressure gas transfer in air accumulator into cryogenic tank, and gas exists
It carries out isothermal expansion in cryogenic tank, after isothermal expansion process, steam exhaust heat is absorbed by the second heat exchanger for heating the
Liquid in three liquid cells, improve the steam exhaust condensation rate and efficiency of solar energy power plant, while gas expansion for doing work is sent
Electrical energy transportation is to power grid.
8. the control method of solar energy power plant as claimed in claim 5 and compressed-air energy storage unit associations running gear,
It is characterized in that, during energy storage, the energy consumption of the first drive apparatus drives the piston rod movement in first piston cylinder, in isotherm compression high-temperature tank
Gas, the energy consumption of the second drive apparatus drives the piston rod movement in second piston cylinder, and gas moves to storage from high-temperature tank equipressure
In gas tank, the gas isothermal expansion in cryogenic tank promotes the piston rod movement in the 3rd piston cylinder, drives power generation；Hair
When electric, the energy consumption of the second drive apparatus drives the piston rod movement in second piston cylinder, and gas equipressure from air accumulator moves to height
In warm tank, gases at high pressure carry out isothermal expansion in high-temperature tank, and the piston rod of first piston cylinder promotes the movement of the first drive apparatus,
Electrical energy transportation is sent to power grid.
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