CN107990772A - A kind of energy storage and energy release device - Google Patents
A kind of energy storage and energy release device Download PDFInfo
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- CN107990772A CN107990772A CN201810012077.9A CN201810012077A CN107990772A CN 107990772 A CN107990772 A CN 107990772A CN 201810012077 A CN201810012077 A CN 201810012077A CN 107990772 A CN107990772 A CN 107990772A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
- F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
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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
- Y02E60/14—Thermal energy storage
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- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The present invention provides a kind of energy storage and energy release device, including kinetic pump, auto-pneumatic cylinder, turbine-generator units, tank, phase-change energy storage device, pipeline, valve etc., auto-pneumatic cylinder is equipped with membrane, is communicated with phase-change energy storage device in the high pressure air cavity of auto-pneumatic cylinder, phase-change energy storage device includes：High-pressure working medium storage tank, working medium, phase transition under high pressure material, compressor etc., the device with water lift, water storage, heat water, compressed gas of drawing water energy storing and electricity generating or at the same time with above multiple function；Energy storage density is big, easy to install, is particularly suitable for distributed energy and micro-capacitance sensor uses.
Description
Technical field
The invention belongs to heating power and fluid machinery category, it is related to energy storage technology, energy storage of particularly drawing water, compressed air storage
Can, heating power phase-change accumulation energy and can system for generating electricity, heating releasing for water, cooling and water supply.
Background technology
Currently, power energy storage is of both primarily to solve the problems, such as, first, solving daytime and evening and due to season
Power supply and demand caused by the change of section property on power grid is uneven.Second, solve since renewable energy power generation is subject to natural conditions
Influence, caused by power supply instability and intermittent power supply.Imbalance and voltage fluctuation problem between these generated energy and power consumption,
Safe operation to electric system causes very big trouble, also substantially reduces the effective rate of utilization of energy.In order to solve to send out
Imbalance problem between electricity and power consumption, people take energy storage technology peak load shifting, and excessive generated energy is stored
Come, power grid is supplemented in when power consumption demand is big.In terms of power supply, energy storage technology is able to maintain that power system stability is run, and keeps away
Exempt from, because power consumption fluctuates the impact to power grid, to reduce power grid consumption.In terms of electricity consumption, user can according to the peak-to-valley value of electricity price come
The storage and release of electric energy are selected, improves the economic benefit of electricity consumption.Meanwhile the pass of energy-storage system or distributed energy resource system
Key technology, distributed formula energy resource system replace conventional large centralised energy resource system using great quantity of small distributed energy resource system,
Also, since the capacity of system is smaller, the fluctuation of system loading will also increase considerably, and therefore, be made using energy storage system
It is the measure that distributed energy resource system must take into consideration for load equalizer.
Current existing energy storage technology includes draw water energy storage, compressed-air energy storage, batteries to store energy, superconducting energy storage, flywheel
Energy storage and ultracapacitor energy storage, phase-change thermal storage energy storage etc., but due to capacity, the energy storage cycle, energy density, efficiency for charge-discharge,
The factors such as service life, investment operating cost, environmental protection, natural conditions influence, and that has been run in large scale business system at present only takes out
Two kinds of water energy storage and compressed-air energy storage.
Energy-accumulating power station system of drawing water has the advantages that technology maturation, efficient, capacity is big, is current most widely used storage
Can electricity generation system.But the energy-storing and power-generating system that draws water needs special geographical conditions to build reservoir and dam, addressing is difficult, at the same time
Construction period is long, investment is big, environment is influenced greatly, therefore much limited.
Compressed air energy storage power generating system, technology is simultaneously uncomplicated, but usually requires suitable cave or mine to store height
Air is pressed, this greatly limits the development of air energy storage；In addition, compressed air pressure during release constantly reduces, it is
Ensure expanding machine stable operation, it is necessary to will be used by stable-pressure device after pressure-air reducing pressure by regulating flow, or to ensure that turbine is steady
Fixed operation, burning is mixed together by fuel and compressed air Mixed design gas turbine, adjusts output power.Or these processes
Substantial amounts of compression energy is wasted, otherwise it can also cause environmental pollution.
Propose that " one kind is drawn water compressed-air energy storage system in the application documents of Chinese invention Application No. 201110137038
Water is pressed into air pressure tank from tank by water pump in low power consumption, is compressed gas in tank by system ", the system, so that
The interior energy for converting electrical energy into air stores；In peak of power consumption, air pressure tank mesohigh air goes out hydraulic pressure, through water-supply-pipe
Road drives the hydraulic turbine and drives electrical power generators.The system is especially suitable for distributed small-sized energy-storage system, but the system stored energy
Density is relatively low and does not add hot water function etc..
According to another report, German has invented one kind and is referred to as water conservancy rock energy storage technology, its basic principle is：Use cylinder
The rock of piston shape is embedded in the identical reservoir chamber of shape, and when having rich electric power, pump can enter hydraulic pressure in reservoir chamber, at this time rock
Stone piston will be lifted by hydraulic pressure, i.e., electric energy is converted into gravitional force.And when power grid requires supplementation with electric energy for seasonable, gate
It can open, rock piston can decline at this time, and the water extruded in reservoir chamber flows through the hydraulic turbine to generate electricity, and gravitional force is changed into electricity
Energy.The energy storage capacity of the system depends on the density of rock piston, size, quality and height for being elevated etc., due to rock
Density is not high, and the size of rock piston can be very big, if maximization, construction/installation all exists many difficult.In addition, piston
The elevated height of energy is preferably at most the half of its own, otherwise can be rolled.
A kind of " forward and reverse organic Rankine bottoming cycle storage is proposed in the application documents of Chinese invention Application No. 201310088097
Can method and system ", which is utilize phase-change accumulation energy, and energy storage density is big, can steady and continuous realize electric energy storage and discharge；
But this system does not account for efficiently using for low grade heat energy in thermodynamic cycle process and cold.
In the technical solution that a kind of " energy storage device " patent of the Patent No. 201720164588 of the present inventor's application is proposed
There are a water tank and a low pressure working fluid tank, in the presence of local this water tank and low pressure working fluid tank for having sufficient water source and heat source
It is unnecessary, and adds the cost of device.
The content of the invention
The technical problem to be solved in the present invention is：There is provided that a kind of energy storage density is high, energy loss is small, by geographical environmental condition
Influence small, construction and installation conveniently；Or can realize a kind of fluctuation energy input, a kind of energy stabilizing output；Or a variety of fluctuation energy
A kind of stable energy output of joint input；Or can heat accumulation power generation, compressed gas of drawing water energy storing and electricity generating, heating cold water, cooling, water supply
Multifunction energy storage and energy conversion system.
To reach above-mentioned purpose and solving above-mentioned technical problem, technical solution proposed by the present invention is：
A kind of energy storage and energy release device, including kinetic pump, auto-pneumatic cylinder, turbine-generator units, aqua storage tank, pipeline, valve etc., power
The water inlet of pump is connected with water feeding one-way valve, and the water inlet of water feeding one-way valve is connected with inlet pipeline, water inlet pipe mouth and water source or
Aqua storage tank connects, and the water outlet of kinetic pump is connected by pipe valve with the water inlet of auto-pneumatic cylinder, and the water outlet of auto-pneumatic cylinder passes through
Pipeline, valve are connected with the water inlet of turbine-generator units, and the water outlet of turbine-generator units passes through pipeline, valve and aqua storage tank
Or the water inlet connection at water source, aqua storage tank are also connected by pipeline, valve with the water inlet of kinetic pump；It is characterized in that：Air pressure
Membrane is housed in water pot, auto-pneumatic cylinder is separated into high pressure air cavity and high-pressure water chamber, the water inlet and power of auto-pneumatic cylinder by membrane
Pump out and connected by check valve or valve between the mouth of a river；Valve and breather check valve are housed on the high pressure air cavity of auto-pneumatic cylinder；Gas
Heat exchange is connected with external heat source equipped with First Heat Exchanger in the high-pressure water chamber of pressure tank, hot water outlet pipe is also equipped with high-pressure water chamber
Road, valve；Auto-pneumatic cylinder is coated with heat-insulating material, and membrane is heat-insulated membrane；And on the high pressure air cavity of auto-pneumatic cylinder
Phase-change energy storage device is also communicated with, phase-change energy storage device includes：High-pressure working medium storage tank, pipeline, valve；High-pressure working medium storage tank is by one
The tank body of heat-insulating material cladding, be placed in the endoceliac high temperature phase change material (pcm) of tank and working medium composition, is opened in high-pressure working medium storage tank
There is air inlet/outlet, air inlet is connected by pipe valve with air or heat source or phase-change heat exchanger.This device sets phase-change accumulation energy to fill
The effect put is phase-changing energy storage material or working medium is remained saturated-vapor state, in order to provides one to auto-pneumatic cylinder
Constant output pressure.Phase-change material can be solid-gas or liquid-gas heat accumulating, and working medium can be air or other phase-change working substances.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：In the air inlet/outlet of high-pressure working medium storage tank
On compressor or pump be installed, the gas outlet of compressor or pump is connected by pipe valve with the air inlet/outlet of high-pressure working medium storage tank, together
When gas outlet also connected by pipe valve with the high pressure air cavity of auto-pneumatic cylinder, the air inlet of compressor or pump by pipe valve and air or
Heat source or phase-change heat exchanger connection.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：The phase-change heat exchanger is to compress
The air inlet of machine is connected with low pressure working fluid storage tank, and tank body that low pressure working fluid storage tank is coated by a heat-insulating material, be placed in tank body
The low-temperature phase-change material of intracavitary, working medium and it is placed in low pressure working fluid storage tank and with the of the working medium circulation device unicom outside tank body
Three heat exchangers form, and air inlet/outlet is provided with low pressure working fluid storage tank；The air inlet of compressor passes through pipe valve and low pressure working fluid storage tank
Air inlet/outlet connection, after the working medium circulation device unicom outside heat exchanger and tank body in low pressure working fluid storage tank, with outside heat
Source can be realized when connecting conveys heat into storage tank；When being connected with external boiler, cold can be provided for outside.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：In high-pressure working medium storage tank into outlet
Mouthful, expanding machine is parallel with by pipe valve between the air inlet/outlet of low pressure working fluid storage tank, be equipped with the high-pressure water chamber of auto-pneumatic cylinder
Second heat exchanger, the flow inlet of expanding machine is connected by pipeline and switch valve with the air inlet/outlet of high-pressure working medium storage tank, in air pressure
Second heat exchanger is housed, the outflow port of expanding machine is stored up by the second heat exchanger, pipe valve and low pressure working fluid in the high-pressure water chamber of water pot
The air inlet/outlet connection of tank.The thermal energy of storage can be converted into mechanical energy, condensation of second heat exchanger as expanding machine by expanding machine
Device using and the water of high-pressure water chamber can be heated.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：In the air inlet and low pressure work of compressor
Heat absorbing heat exchanger is serially connected between matter storage tank air inlet/outlet.Heat absorbing heat exchanger can absorb the heat in environment and biography gives work
Matter, according to the difference of environmental condition, heat absorbing heat exchanger can be gas-to-gas heat exchanger, water-gas heat exchanger, solar heat exchanger etc..
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：In the air inlet and low pressure work of compressor
Expansion valve is serially connected between matter storage tank air inlet/outlet.When the working medium that low pressure working fluid storage tank comes out carries certain liquid or gas-liquid mixed
It is necessary that expansion valve is concatenated during thing.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：The compressor is reversible compression/swollen
Swollen all-in-one machine.Reversible compression/expansion all-in-one machine is a motor compressor and the integrated device of expansion power generator.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：In high-pressure working medium storage tank and low pressure working fluid
Indirect heat pump is housed, the evaporator of indirect heat pump is placed in low pressure working fluid storage tank or outside tank, the condensation of indirect heat pump between storage tank
Device is placed in high-pressure working medium storage tank, the air inlet of the compressor of indirect heat pump and the gas outlet of evaporator by pipeline connection,
The gas outlet of the compressor of heat pump and the air inlet of condenser are connect by pipeline connection, the outflow port of condenser and expansion valve into
Head piece connects, and the gas outlet of expansion valve is connected with the flow inlet of evaporator.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：The hydrogenerator is reversible electricity
Dynamic water pump/turbine-generator units.Using kinetic pump and related pipe valve can be removed during this scheme, investment is set more to save.
A kind of above-mentioned energy storage and energy release device, preferable technical solution are：The diaphragm is rolling diaphragm.Rolling diaphragm
The big volume space of long stroke can be achieved, and be easily achieved the insulation of two chambers above and below membrane.
A kind of above-mentioned energy storage and energy release device, preferable technical solution are：The generator of the hydrogenerator with it is swollen
The generator of swollen machine is same generator being of coupled connections by clutch, gearbox and shaft coupling.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：The aqua storage tank is a low pressure water storage gas
Tank, low pressure water storage gas tank is interior to be equipped with rolling diaphragm, and low pressure water storage gas tank is separated into low pressure water cavity and low pressure air cavity by rolling diaphragm,
The water outlet of the hydraulic turbine and the water inlet of power water pump are connected by pipe valve with low pressure water cavity, are also associated with discharging water on low pressure water cavity
Pipe valve；Low pressure air cavity is connected by pipe valve with the gas outlet of expanding machine and the air inlet/outlet of low pressure working fluid storage tank.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：The energy storage release device is by two
Group and the above-mentioned auto-pneumatic cylinder of the above, high-pressure working medium storage tank, low pressure working fluid storage tank are in parallel by pipeline and valve in parallel connection composition
Device afterwards shares a set of kinetic pump, hydrogenerator, compressor, expanding machine and associated pipe etc..Energy storage release after parallel connection
System, the loop control logic being made of sensor, control valve, programmable controller etc. control two groups and the storage of above unit
Energy/energy release device recommends continuous operation.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：The energy storage release device is by two
Group and the above-mentioned auto-pneumatic cylinder of the above, low pressure water storage gas tank, high-pressure working medium storage tank, low pressure working fluid storage tank pass through pipeline and valve in parallel
Connection composition, the device after parallel connection share a set of kinetic pump, hydrogenerator, compressor, expanding machine and associated pipe etc..It is in parallel
Energy storage/release system afterwards, the loop control logic being made of sensor, control valve, programmable controller etc. control two groups
And above unit energy storage release device recommends continuous operation.
A kind of above-mentioned energy storage and energy release device, alternative technology scheme are：The power of the compressor uses can be again
Raw driven by energy.
A kind of above-mentioned energy storage and energy release device, improved technical solution are：Stored up in the high pressure air cavity of auto-pneumatic cylinder with low pressure
Return line and switch valve are installed between the low pressure air cavity of aqueous vapor tank, switch valve is arranged in return line.Return line and
Switch valve can be used for release.
A kind of above-mentioned energy storage and energy release device, can use as the high-pressure water of sea water desalination or other water treatment systems.
Pipe valve described here includes pipeline and valve, and switch valve and other valves include：Manual control/automatically controlled/gas control or hydraulic pressure
The switch valve of control, flow control valve, pressure-control valve etc., the switch of each valve and flow control are patrolled by control unit
Collect control.The generator can also be other work mechanisms.The aqua storage tank can also be tank/water tank etc..Here
It is described to refer to that air inlet pipe, air outlet pipe are same pipeline into air outlet pipe, it is that the fluid includes air-flow and liquid stream or gas-liquid two here
Xiang Liu.First Heat Exchanger described here connects heat exchange with external heat source and refers to that heat exchanger can be with solar energy or spent hot water or waste hot gas
Or biomass thermal etc. carries out various heat exchanges.Second heat exchanger described here connects heat exchange with external heat source, including：Heat exchanger
Swapped with the thermal energy in phase-change thermal storage electricity generation system, such as the heat of compressor outlet or expanding machine gas outlet is remaining
Heat；Thermal energy in other environment, such as solar energy, biomass energy, industrial exhaust heat etc..The power resources of the kinetic pump can be
Grid power or regenerative resource, overbottom pressure, waste heat and conventional trough-electricity etc..The system has following operating mode：（1）
The direct water lift water supply pattern of kinetic pump；（2）Water lift compressed-air energy storage hydroelectric generation pattern；（3）Grid power phase-change thermal storage is sent out
Power mode；（4）Water lift compressed-air energy storage+external heater heating water water supply pattern；（5）Phase-change thermal storage power generation+hot water supplies water
Pattern；（6）Water lift compressed-air energy storage hydroelectric generation+phase-change thermal storage power generation mode；（7）Compressed-air energy storage power generation+phase transformation storage
Hot power generation+heating aqueous mode；（8）The heat accumulation power generation mode of regenerative resource driving；（9）Water lift compressed energy-storage+cooling mode；
（10）Cogeneration pattern；（11）List covering device independent operation mode；（12）More covering device parallel running modes, including share
More set auto-pneumatic cylinders, high-pressure working medium storage tank, the low pressure working fluid of a set of kinetic pump, compressor, the hydraulic turbine, expanding machine, tank etc.
Parallel running modes such as storage tank etc..
Beneficial effect：A kind of energy storage release device of the present invention, first, function is more, has water lift, water storage, heating water, confession
The cold, compressed-air energy storage that draws water power generation, phase-change thermal storage power generation have above multiple function at the same time；Second, energy storage density is big, institute
Using phase-change accumulation energy have the energy storage of higher close than pure air energy storage by the way of compressed-air energy storage power generation of drawing water is combined
Degree；Third, it can be used for grid power energy storage, it can also be used to renewable sources of energy voltage stabilizing, the energy storage that can be fluctuated；Fourth, it is easy to install,
Energy storing devices are of less demanding to mounting condition, and conveniently moving, are particularly suitable for distributed energy and micro-capacitance sensor uses.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings：
Fig. 1 is the energy storage that a kind of compressed gas of the present invention is combined with high pressure water, and the apparatus system schematic diagram of energy is released with high pressure water.
Fig. 2 is the energy storage that a kind of compressed gas of the present invention is combined with high pressure water, is combined with high pressure water and gases at high pressure and released
Can apparatus system schematic diagram.
Embodiment
Embodiment 1：A kind of energy storage release device shown in attached drawing 1, including kinetic pump 1, auto-pneumatic cylinder 2, hydrogenerator
Group 3, tank 24, pipeline 5,22,18 etc., valve 6-1,6-2,6-10 and 14,19,23,25 etc., high-pressure working medium storage tank 7, compression
Machine 9, First Heat Exchanger 12 etc. form.Auto-pneumatic cylinder 2 is made of adiabatic tank body 2-1, adiabatic rolling diaphragm 2-2 etc.；High-pressure working medium
Tank body 7-1 that storage tank 7 is coated by a heat-insulating material, be placed in the endoceliac high temperature phase change material (pcm) 7-2 of tank, phase-change working substance 7-3
Deng composition, air inlet/outlet 7-4 is provided with high-pressure working medium storage tank.The water inlet of kinetic pump 1 is connected with water feeding one-way valve by pipeline
11, the water inlet of water feeding one-way valve 11 is connected with inlet pipeline 5, and water inlet pipe mouth is connected with water source 24, and the water outlet of kinetic pump 1 leads to
Cross pipeline and valve 25 is connected with the water inlet of auto-pneumatic cylinder 2, the power water outlet of auto-pneumatic cylinder 2 passes through pipeline, valve 6-10
Connected with the water inlet of turbine-generator units 3, the water outlet of turbine-generator units 3 is connected by pipeline with tank 24；Air pressure
Rolling diaphragm 2-2 is housed in water pot 2, air pressure tank is separated into high pressure air cavity 2-3 and high-pressure water chamber 2-4 by rolling diaphragm 2-2；Air pressure
Switch valve 14 and breather check valve 15 are housed on the high pressure air cavity 2-3 of water pot 2；Equipped with the in the high-pressure water chamber 2-4 of auto-pneumatic cylinder 2
One heat exchanger 12 can connect heat exchange with external heat source, and hot water effluent's pipeline 18, valve 19 are also equipped with high-pressure water chamber 2；Kinetic pump 1
Water outlet cold water outlet pipe 22 and valve 23 are also communicated with by threeway, auto-pneumatic cylinder 2 is coated with heat-insulating material, rolling
The heat-insulated membranes of dynamic membrane 2-2, kinetic pump 1 use centrifugal high pressure water pump, and compressor 9 uses screw compressor, turbine-generator units 3
Using bulb-type hydraulic generating set.
High-pressure working medium storage tank 7, the air inlet of compressor 9 are linked with by pipe valve on the high pressure air cavity 2-3 of auto-pneumatic cylinder 2
Connected by pipeline with heat source；The gas outlet of compressor 9 passes through pipeline and valve 6-2 and the air inlet/outlet of high-pressure working medium storage tank 7
7-4 is connected, while also passes through the high pressure air cavity 2-3 unicom of valve 6-1 and auto-pneumatic cylinder 2.12 and one solar energy of First Heat Exchanger
Water heater connects（It is not drawn into figure）.
The working medium and phase-change material used in the embodiment 1 is：Working medium is hot gas, the high temperature in high-pressure working medium storage tank 7
Phase-change material selects paraffin.
The system has following operating mode：（1）Direct water lift pattern：Turn off the switch valve 25, kinetic pump 1 by suction hose 5,
Check valve 11 directly from 24 water lift of water source, supplies water through valve 23, pipeline 22.（2）Draw water compressed-air energy storage power generation mode：Open
Valve 6-1,6-2, close valve 23,19,6-10 etc., start compressor 9 and are compressed hot gas energy storage, close valve 6- afterwards
2, valve 25 is opened, kinetic pump 1 opens valve 6- again followed by out of 24 water lift of water source injection auto-pneumatic cylinder 2 high-pressure water chamber 2-4
10, discharged water by high-pressure water chamber 2-4 and drive the hydraulic turbine 3 to generate electricity or drive other work mechanisms.The compressed-air energy storage that draws water generates electricity
Pattern can also be first water filling, restart compressor 9 and be compressed hot gas energy storing and electricity generating.（3）Heat supply aqueous mode：In above-mentioned mould
Formula（1）, pattern（2）On the basis of heat exchanger 12 accessed into heat source, system can provide hot water.（4）Fluctuation the energy draw water+phase transformation storage
Hot power generation mode：Fluctuation driven by energy kinetic pump 1 draws water savings in the high-pressure water chamber 2-4 of auto-pneumatic cylinder 2, conventional valley power
Electric power is become in high-pressure working medium tank 7 by thermmal storage by compressor 9.When needing, valve 6-10 is opened, controls the confession of compressor 9
Heat, the high pressure water for keeping constant pressure promote hydrogenerator power generation.According to the characteristic of each functional unit of the system also
Other function combinations can be combined into.
Embodiment 2：A kind of energy storage release device shown in attached drawing 2, including kinetic pump 1, auto-pneumatic cylinder 2, hydrogenerator
Group 3, tank 24, pipeline 5,22,18 etc., valve 6-1 to 6-5,6-6,6-10 and 14,19,23,25 etc., high-pressure working medium storage tank
7th, low pressure working fluid storage tank 8, compressor 9, expanding machine 10, First Heat Exchanger 12, second heat exchanger 13 etc. form.Auto-pneumatic cylinder 2 by
The compositions such as adiabatic tank body 2-1, adiabatic rolling diaphragm 2-2；Tank body 7-1 that high-pressure working medium storage tank 7 is coated by a heat-insulating material,
The composition such as the endoceliac high temperature phase change material (pcm) 7-2 of tank, phase-change working substance 7-3 is placed in, air inlet/outlet 7- is provided with high-pressure working medium storage tank
4；Tank body 8-1 that low pressure working fluid storage tank 8 is coated by a heat-insulating material, be placed in the endoceliac low-temperature phase-change material 8-2 of tank, phase
Become working medium 8-3（With phase-change working substance 7-3）And be placed in low pressure working fluid storage tank and with the 3rd heat exchanger of tank body external heat source unicom
8-5 is formed, and air inlet/outlet 8-4 is provided with low pressure working fluid storage tank.The water inlet of kinetic pump 1 is connected with water feeding one-way valve by pipeline
11, the water inlet of water feeding one-way valve 11 is connected with inlet pipeline 5, and water inlet pipe mouth is connected with water source 24, and the water outlet of kinetic pump 1 leads to
Cross pipeline and valve 25 is connected with the water inlet of auto-pneumatic cylinder 2, the power water outlet of auto-pneumatic cylinder 2 passes through pipeline, valve 6-10
Connected with the water inlet of turbine-generator units 3, the water outlet of turbine-generator units 3 is connected by pipeline with tank 24；Air pressure
Rolling diaphragm 2-2 is housed in water pot 2, air pressure tank is separated into high pressure air cavity 2-3 and high-pressure water chamber 2-4 by rolling diaphragm 2-2；Air pressure
Switch valve 14 and breather check valve 15 are housed on the high pressure air cavity 2-3 of water pot 2；Equipped with the in the high-pressure water chamber 2-4 of auto-pneumatic cylinder 2
One heat exchanger 12, the second heat exchanger 13 simultaneously can connect heat exchange with external heat source respectively, and hot water outlet pipe is also equipped with high-pressure water chamber 2
Road 18, valve 19；The water outlet of kinetic pump 1 is also communicated with cold water outlet pipe 22 and valve 23,2 outsourcing of auto-pneumatic cylinder by threeway
Heat-insulating material, the heat-insulated membranes of rolling diaphragm 2-2 are covered with, kinetic pump 1 uses centrifugal high pressure water pump, and compressor 9 is using vortex
Compressor, expanding machine 10 use turbo-expander, and turbine-generator units 3 use bulb-type hydraulic generating set.
High-pressure working medium storage tank 7 is linked with by pipe valve on the high pressure air cavity 2-3 of air pressure tank 2, the air inlet of compressor 9 leads to
Cross pipeline, valve 6-5 is connected with the air inlet/outlet 8-4 of low pressure working fluid storage tank 8, while the air inlet/outlet 8-4 of low pressure working fluid storage tank 8
Also connected by pipeline, valve 6-6, condenser 6-7 with the gas outlet of expanding machine 10；The gas outlet of compressor passes through pipeline, valve
Door 6-4 is connected with the air inlet/outlet 7-4 of high-pressure working medium storage tank 7.The air inlet of expanding machine 10 passes through pipeline, valve 6-2,6-3,6-
4 also connect with the air inlet/outlet 7-4 of high-pressure working medium storage tank 7.First Heat Exchanger 12 is connected with a solar water heater（Do not drawn in figure
Go out）.Second heat exchanger 13 is coupled by pipe valve with condenser 6-7.3rd heat exchanger 8-5 is connected with heat source.
The working medium and phase-change material, first scheme used in the embodiment 2 is：Organic working medium is R245fa, low temperature phase change
Material selection phase transition temperature is 32 °C of capric acid, and high temperature phase change material (pcm) selects low-melting alloy, 160 °C of phase transition temperature, high pressure work
Pressure is the working medium saturation pressure 3.9MPa under high temperature phase change material (pcm) phase transition temperature in matter storage tank 7.Pressure in low pressure working fluid storage tank 8
For the working medium saturation pressure 0.19MPa under low-temperature phase-change material phase transition temperature.
The working medium and phase-change material, alternative plan used in the embodiment 2 is：Organic working medium is iso-butane, low temperature phase change
Material selection phase transition temperature is -10 °C of glycol water, and high temperature phase change material (pcm) selects polyester thermal capacitance cotton, 110 ° of phase transition temperature
C.Pressure is the working medium saturation pressure 1.8MPa under high temperature phase change material (pcm) phase transition temperature in high-pressure working medium storage tank 7.Low pressure working fluid stores up
Pressure is the working medium saturation pressure 0.07MPa under low-temperature phase-change material phase transition temperature in tank 8.
The system has following operating mode：（1）Direct water lift pattern：Turn off the switch valve 25, kinetic pump 1 by suction hose 5,
Check valve 11 directly from 24 water lift of water source, supplies water through valve 23, pipeline 22.（2）Draw water compressed-air energy storage pattern：Close valve
6-1,23,19,6-10 etc., open valve 25, high-pressure water chamber 2-4 internal pressure of the kinetic pump 1 from 24 water lift of water source injection auto-pneumatic cylinder 2
Air energy storage in contracting rolling diaphragm 2-2 and air cavity 2-3.Valve 6-10 is opened again, is discharged water by high-pressure water chamber 2-4 and is driven the hydraulic turbine
3 power generations drive other work mechanisms.（3）Draw water energy storage+phase-change accumulation energy pattern：Valve 23,19 is closed, opens valve 25, kinetic pump 1
To 2 internal pump water of auto-pneumatic cylinder, while valve 6-1,6-2,6-4,6-5 to be opened, close valve 6-3,6-8,6-6, compressor 9 is opened, from
Pumping, is compressed in high-pressure working medium storage tank 7, in this compression process, on the one hand, low pressure working fluid storage tank 8 in low pressure working fluid storage tank 8
Interior liquid phase cryogenic fluid evaporates the pressure stability to keep in low pressure working fluid storage tank 8, while the low temperature in low pressure working fluid storage tank 8
Phase-change material 8-2 condensation heats, and the heating power flow in the 3rd heat exchanger 8-5 is adjusted, temperature in low pressure working fluid tank 8 can be kept steady
It is fixed；On the other hand, enter high-pressure working medium storage tank 7 through the compressed high pressure vapor working medium of compressor 9, condense into liquid work wherein
Matter is to keep the pressure stability in high-pressure working medium storage tank 7, while 7 high temperature phase-change material 7-2 of high-pressure working medium storage tank melts heat absorption,
To keep the temperature stabilization in high-pressure working medium storage tank 7.Electric energy for driving compressor is saved as into high-temperature phase-change material during this
The heat of transformation of material and high pressure organic working medium；In power generation process：A kind of mode is can directly to open valve 6-10, auto-pneumatic cylinder 2
High-pressure water chamber in high pressure water directly drive hydrogenerator 3 and generate electricity.The second way is to close valve 6-10,19,23, is beaten
Valve opening door 6-1,6-3,6-6, expansion power generator 10 are opened, the high pressure in 2 high pressure air cavity 2-3 of high-pressure working medium tank 7 and auto-pneumatic cylinder
Gas-phase working medium promotes expansion power generator 10 to run, in this power generation process, on the one hand, liquid phase working fluid 7-3 is evaporated to keep high pressure
Pressure stability in working medium storage tank 7 and in high pressure air cavity 2-3, while the high temperature phase change material (pcm) 7-2 in high-pressure working medium storage tank 7 condenses
Heat release, to keep in high-pressure working medium storage tank temperature stabilization in 7 and high pressure air cavity 2-3；On the other hand, high pressure vapor working medium enters swollen
Swollen machine 10 does work, and enters low pressure working fluid tank 8 after its waste heat condensed device 6-7 coolings, condensed into low pressure working fluid tank liquid with
Pressure stability in low pressure working fluid storage tank 8 is kept, while the low-temperature phase-change material 8-2 in low pressure working fluid storage tank 8 melts heat absorption, and adjust
Temperature stabilization in low pressure working fluid storage tank 8 can be kept by saving heating power flow in the 3rd heat exchanger 8-5, this power generation process will can store
The heat of transformation in high temperature phase change material (pcm) and high pressure organic working medium is converted into the electric power of the output of expansion power generator 10.In this power generation
During, the waste heat of expansion power generator discharge can be also heated through the second heat exchanger 13 in the high-pressure water chamber 2-4 of auto-pneumatic cylinder 2
Water, hot water can be flowed out from pipeline 18 or pipeline 22.（4）Water lift compressed-air energy storage+external heater heating water water supply pattern：Close
Valve closing 6-10,23, kinetic pump 1 from water source 24 by the road 5, high-pressure water chamber 2-4 water filling of the check valve 11 to auto-pneumatic cylinder 2, with this
First Heat Exchanger 12 connects circulation with external solar energy or other heating power sources at the same time, heats the water in high-pressure water chamber 2-4, and hot water leads to
Cross pipeline 18, valve 19 exports.（5）The fluctuation energy draws water+phase-change thermal storage power generation mode：Fluctuation driven by energy kinetic pump 1 draws water
In the high-pressure water chamber 2-4 of auto-pneumatic cylinder 2, electric power is changed into phase transformation thermmal storage by conventional valley power by compressor 9 for savings
In high-pressure working medium tank 7.When needing, valve 6-10 is opened, controls the high pressure water of constant pressure to promote hydrogenerator power generation.（6）
Draw water compressed-air energy storage power generation+phase-change thermal storage power generation mode：On the one hand, the compressed-air energy storage that draws water power generation be kinetic pump 1 from
Draw water in tank 24 injection auto-pneumatic cylinder 2 high-pressure water chamber 2-4 in energy storage, it is necessary to when, high pressure water-driven turbine-generator units
Power generation；On the other hand, phase-change accumulation energy is compressor 9 can be converted into thermal energy storage in high-pressure working medium storage tank by unnecessary electric power,
When needing the expanded machine 10 of hot high pressure strength body drive electrical power generators or with 3 cogeneration of turbine-generator units.It is according to this
The characteristic of each functional unit of system can also be combined into other function combinations.
Although having been combined the preferred embodiment device that the invention has been described, the invention is not restricted to as described herein
Concrete form, on the contrary, its object is to cover naturally fall into the scope of the invention of claims restriction
Various alternatives, remodeling, various features key element recombinant and derivative Combination nova and equivalents.
Claims (14)
1. a kind of energy storage and energy release device, including kinetic pump, auto-pneumatic cylinder, turbine-generator units, aqua storage tank, pipeline, valve etc.,
The water inlet of kinetic pump is connected with water feeding one-way valve, and the water inlet of water feeding one-way valve is connected with inlet pipeline, water inlet pipe mouth and water
Source or aqua storage tank connection, the water outlet of kinetic pump are connected by pipe valve with the water inlet of auto-pneumatic cylinder, the water outlet of auto-pneumatic cylinder
Connected by pipeline, valve with the water inlet of turbine-generator units, the water outlet of turbine-generator units passes through pipeline, valve and storage
The water inlet at sink or water source connects, and aqua storage tank is also connected by pipeline, valve with the water inlet of kinetic pump；It is characterized in that：
Membrane be housed in auto-pneumatic cylinder, auto-pneumatic cylinder is separated into high pressure air cavity and high-pressure water chamber by membrane, the water inlet of auto-pneumatic cylinder and
Connected between kinetic pump water outlet by check valve or valve；It is unidirectional equipped with valve and air inlet on the high pressure air cavity of auto-pneumatic cylinder
Valve；First Heat Exchanger is housed in the high-pressure water chamber of auto-pneumatic cylinder and heat exchange is connected with external heat source, heat is also equipped with high-pressure water chamber
Water outlet pipeline, valve；Auto-pneumatic cylinder is coated with heat-insulating material, and membrane is heat-insulated membrane；And the height in auto-pneumatic cylinder
Calm the anger and be also communicated with phase-change energy storage device on chamber, phase-change energy storage device includes：High-pressure working medium storage tank, pipeline, valve；High-pressure working medium
Tank body that storage tank is coated by a heat-insulating material, be placed in the endoceliac high temperature phase change material (pcm) of tank and working medium forms, high-pressure working medium
Air inlet/outlet is provided with storage tank, air inlet is connected by pipe valve with air or heat source or phase-change heat exchanger.
A kind of 2. energy storage and energy release device according to claim 1, it is characterised in that：In high-pressure working medium storage tank into outlet
Compressor or pump be installed on mouthful, the gas outlet of compressor or pump is connected by pipe valve with the air inlet/outlet of high-pressure working medium storage tank,
Gas outlet is also connected by pipe valve with the high pressure air cavity of auto-pneumatic cylinder at the same time, and the air inlet of compressor or pump passes through pipe valve and air
Or heat source or phase-change heat exchanger connection.
A kind of 3. energy storage and energy release device according to claim 1, it is characterised in that：The phase-change heat exchanger is to press
The air inlet of contracting machine is connected with low pressure working fluid storage tank, and tank body that low pressure working fluid storage tank is coated by a heat-insulating material, be placed in tank
Endoceliac low-temperature phase-change material, working medium and be placed in low pressure working fluid storage tank and with the working medium circulation device unicom outside tank body
3rd heat exchanger forms, and air inlet/outlet is provided with low pressure working fluid storage tank；The air inlet of compressor is stored up by pipe valve and low pressure working fluid
The air inlet/outlet connection of tank.
A kind of 4. energy storage and energy release device according to claim 3, it is characterised in that：In high-pressure working medium storage tank into outlet
Mouthful, expanding machine is parallel with by pipe valve between the air inlet/outlet of low pressure working fluid storage tank, be equipped with the high-pressure water chamber of auto-pneumatic cylinder
Second heat exchanger, the flow inlet of expanding machine are connected by pipeline and switch valve with the air inlet/outlet of high-pressure working medium storage tank, expanding machine
Outflow port connected by the second heat exchanger, pipe valve with the air inlet/outlet of low pressure working fluid storage tank.
A kind of 5. energy storage and energy release device according to claim 3, it is characterised in that：In the air inlet and low pressure of compressor
Heat absorbing heat exchanger is serially connected between working medium storage tank air inlet/outlet.
A kind of 6. energy storage and energy release device according to claim 3, it is characterised in that：In the air inlet and low pressure of compressor
Expansion valve is serially connected between working medium storage tank air inlet/outlet.
A kind of 7. energy storage and energy release device according to claim 3, it is characterised in that：The compressor is reversible compression/swollen
Swollen all-in-one machine.
A kind of 8. energy storage and energy release device according to claim 1 or 3, it is characterised in that：In high-pressure working medium storage tank and low pressure
Indirect heat pump is housed, the evaporator of indirect heat pump is placed in low pressure working fluid storage tank or outside tank, indirect heat pump between working medium storage tank
Condenser is placed in high-pressure working medium storage tank, and the air inlet of the compressor of indirect heat pump and the gas outlet of evaporator are connected by pipeline
Logical, the gas outlet of the compressor of indirect heat pump and the air inlet of condenser pass through pipeline connection, the outflow port of condenser and expansion
The flow inlet connection of valve, the gas outlet of expansion valve is connected with the flow inlet of evaporator.
A kind of 9. energy storage and energy release device according to claim 1 or 2, it is characterised in that：The hydrogenerator is reversible
Formula electric water pump/turbine-generator units.
A kind of 10. energy storage and energy release device according to claim 1 or 2 or 3, it is characterised in that：The diaphragm for roll every
Film.
A kind of 11. energy storage and energy release device according to claim 4, it is characterised in that：The generator of the hydrogenerator
Generator with expanding machine is same generator being of coupled connections by clutch, gearbox and shaft coupling.
A kind of 12. energy storage and energy release device according to claim 4, it is characterised in that：The aqua storage tank is a low pressure water storage
Gas tank, low pressure water storage gas tank is interior to be equipped with rolling diaphragm, and low pressure water storage gas tank is separated into low pressure water cavity and low pressure gas by rolling diaphragm
Chamber, the water outlet of the hydraulic turbine and the water inlet of power water pump are connected by pipe valve with low pressure water cavity, are also associated with low pressure water cavity
Discharge tube valve；Low pressure air cavity is connected by pipe valve with the gas outlet of expanding machine and the air inlet/outlet of low pressure working fluid storage tank.
13. a kind of energy storage and energy release device according to any one of claim 1,2,3,4,5,6,7,11,12, its feature
It is：The energy storage and energy release device is passed through by two groups and the above-mentioned auto-pneumatic cylinder of the above, high-pressure working medium storage tank, low pressure working fluid storage tank
Pipeline and valve in parallel connection composition, it is in parallel after device share a set of kinetic pump, hydrogenerator, compressor, expanding machine and
Associated pipe.
A kind of 14. energy storage and energy release device according to claim 12, it is characterised in that：The energy storage and energy release device be by
Two groups and the above-mentioned auto-pneumatic cylinder of the above, low pressure water storage gas tank, high-pressure working medium storage tank, low pressure working fluid storage tank by pipeline and valve simultaneously
Connection connection composition, the device after parallel connection share a set of kinetic pump, hydrogenerator, compressor, expanding machine and associated pipe etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810012077.9A CN107990772A (en) | 2018-01-05 | 2018-01-05 | A kind of energy storage and energy release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810012077.9A CN107990772A (en) | 2018-01-05 | 2018-01-05 | A kind of energy storage and energy release device |
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| CN107990772A true CN107990772A (en) | 2018-05-04 |
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| CN201810012077.9A Withdrawn CN107990772A (en) | 2018-01-05 | 2018-01-05 | A kind of energy storage and energy release device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706414A (en) * | 2020-06-09 | 2020-09-25 | 西安交通大学 | Quasi-isobaric discharge isothermal compression energy storage system and method utilizing condensable gas phase change |
| CN111828842A (en) * | 2020-07-30 | 2020-10-27 | 贵州航天天马机电科技有限公司 | Oil gas field pressure energy recovery power generation facility |
| CN112554984A (en) * | 2020-11-24 | 2021-03-26 | 西安交通大学 | Constant-pressure water-pumping compressed air energy storage system with heat storage function and operation method |
| CN116086226A (en) * | 2023-01-09 | 2023-05-09 | 中国电建集团华东勘测设计研究院有限公司 | Water-gas heat exchange system and method for pumping compressed air energy storage |
-
2018
- 2018-01-05 CN CN201810012077.9A patent/CN107990772A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706414A (en) * | 2020-06-09 | 2020-09-25 | 西安交通大学 | Quasi-isobaric discharge isothermal compression energy storage system and method utilizing condensable gas phase change |
| CN111706414B (en) * | 2020-06-09 | 2021-07-13 | 西安交通大学 | Quasi-isobaric discharge isothermal compression energy storage system and method utilizing condensable gas phase change |
| CN111828842A (en) * | 2020-07-30 | 2020-10-27 | 贵州航天天马机电科技有限公司 | Oil gas field pressure energy recovery power generation facility |
| CN112554984A (en) * | 2020-11-24 | 2021-03-26 | 西安交通大学 | Constant-pressure water-pumping compressed air energy storage system with heat storage function and operation method |
| CN112554984B (en) * | 2020-11-24 | 2021-09-07 | 西安交通大学 | Constant-pressure water-pumping compressed air energy storage system with heat storage function and operation method |
| CN116086226A (en) * | 2023-01-09 | 2023-05-09 | 中国电建集团华东勘测设计研究院有限公司 | Water-gas heat exchange system and method for pumping compressed air energy storage |
| CN116086226B (en) * | 2023-01-09 | 2023-10-20 | 中国电建集团华东勘测设计研究院有限公司 | Water-gas heat exchange system and method for pumping compressed air energy storage |
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