CN107701406A - A kind of adiabatic compression air energy storage systems of tail gas backheat - Google Patents
A kind of adiabatic compression air energy storage systems of tail gas backheat Download PDFInfo
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- CN107701406A CN107701406A CN201711050893.0A CN201711050893A CN107701406A CN 107701406 A CN107701406 A CN 107701406A CN 201711050893 A CN201711050893 A CN 201711050893A CN 107701406 A CN107701406 A CN 107701406A
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- Prior art keywords
- air
- tail gas
- circulation
- temperature
- working medium
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Classifications
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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
-
- 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
-
- 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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/105—Final actuators by passing part of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/42—Storage of energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention provides a kind of adiabatic compression air energy storage systems of tail gas backheat, including air compressor, cooler, air storage chamber, throttle mechanism, tail gas regenerator, circulation heat recovery device, turbo-expander, high temperature circulation working medium source and low-temperature circulating working medium source；Air compressor, the air inlet pipe of cooler, air storage chamber, throttle mechanism, the air inlet pipe of tail gas regenerator, the air inlet pipe of circulation heat recovery device, the product heat cal rod of turbo-expander and tail gas regenerator are sequentially connected；The heat exchanger tube circulation in low-temperature circulating working medium source, the heat exchanger tube of cooler, high temperature circulation working medium source and circulation heat recovery device connects.The present invention between throttle mechanism and circulation heat recovery device by setting tail gas regenerator, make full use of turbine expansion tail gas residual temperature, preheat the Cryogenic air after throttle mechanism, improve the temperature of circulation heat recovery device intake air, and then improve the temperature of circulation heat exchanger outlet air, turboexpander inlet temperature is lifted, improves the efficiency of utilization of system.
Description
Technical field
The present invention relates to energy storage device technical field, and in particular to a kind of adiabatic compression air energy storage system of tail gas backheat
System.
Background technology
The storage of energy storage especially electric energy is significant to energy structure optimizing and operation of power networks regulation.Compressed air
Energy-storage system is a kind of new accumulation of energy electric power storage technology.1978, Germany built up the first in the world seat example compression air energy-storage electricity
Stand, immediately after be the U.S., Japan and Israel.The operation principle of compressed air energy storage power generating system and water-storage are similar
Seemingly, when the electricity consumption of power system is at a low ebb, system stored energy, the electricity more than needed in system, driven compressor air pressure are utilized
Contracting machine is stored in energy in caisson in the form of compressed air with compressed air；When power system power load reaches
During the generated energy deficiency of peak, system releases energy, and caisson discharges the compressed air in gas storage space, and in a combustion chamber
With fuel mixed combustion, the high-temperature gas of generation expansion work and drives electrical power generators in turbo-expander, completes electricity
Energy-air potential energy-electric transformation of energy.
Adiabatic compression air energy storage systems have abandoned the technology path of consumption fuel lifting compressed air to do work ability, utilize
Adiabatic compression converts electrical energy into heat energy in air compression process and air potential energy stores respectively, and is utilized in power generation process
System itself energy heats turbo-expander air inlet, meets requirement of the turbo-expander for inlet temperature, and avoid and be
System carbon emission.But due in compression process caused heat of compression total amount it is limited, and gases at high pressure are deposited during throttling expansion
Throttling refrigeration effect cause sharp temperature drop, after throttling gas temperature be generally -20 DEG C to -15 DEG C, cause high pressure
Air, which needs to consume certain heat, can just return to environment temperature, and remaining heat could be used for actual acting output.Together
When, to avoid turbo-expander blade or outlet frosting from freezing, general control tail gas keeps 0 DEG C to 5 DEG C of residual temperature.Due to throttling
Additional energy caused by refrigerating effect consumes, and the limitation of turbine expansion tail gas residual temperature, makes the efficiency of utilization of system reduce,
The gross efficiency of system reduces.
The content of the invention
(1) technical problems to be solved
It is an object of the invention to provide a kind of adiabatic compression air energy storage systems of tail gas backheat, to solve existing system heat
The problem of utilization ratio is low.
(2) technical scheme
In order to solve the above-mentioned technical problem, the present invention provides a kind of adiabatic compression air energy storage systems of tail gas backheat, bag
Include air compressor, cooler, air storage chamber, throttle mechanism, tail gas regenerator, circulation heat recovery device, turbo-expander, high temperature circulation
Working medium source and low-temperature circulating working medium source；Wherein, the air compressor, the air inlet pipe of cooler, air storage chamber, throttle mechanism, tail
The air inlet pipe of gas regenerator, the air inlet pipe of circulation heat recovery device, the product heat cal rod of turbo-expander and tail gas regenerator are sequentially connected；Institute
State the heat exchanger tube circulation connection of low-temperature circulating working medium source, the heat exchanger tube of cooler, high temperature circulation working medium source and circulation heat recovery device.
Wherein, the throttle mechanism is throttling pressure maintaining valve.
Wherein, the delivery temperature of the throttling pressure maintaining valve is -20 DEG C~-15 DEG C.
Wherein, the delivery temperature of the turbo-expander is 60 DEG C.
(3) beneficial effect
Compared with prior art, the invention has the advantages that：
The present invention provides a kind of adiabatic compression air energy storage systems of tail gas backheat, by throttle mechanism and circulation heat recovery
Tail gas regenerator is set between device, makes full use of turbine expansion tail gas residual temperature, preheats the Cryogenic air after throttle mechanism, is improved
The temperature of circulation heat recovery device intake air, and then the temperature of circulation heat exchanger outlet air is improved, make turboexpander inlet
Temperature is lifted, and improves the efficiency of utilization of system.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present disclosure or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some disclosed embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these figures.
Fig. 1 is a kind of structural representation of the adiabatic compression air energy storage systems of tail gas backheat of the present invention；
Description of reference numerals
1- air compressors；2- coolers；3- air storage chambers；4- throttling pressure maintaining valves；5- tail gas regenerators；6- circulation heat recoveries
Device；7- turbo-expanders；8- low-temperature circulating working medium source；9- high temperature circulation working medium source.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Following instance
For illustrating the present invention, but it is not limited to the scope of the present invention.
In the description of the invention, it is necessary to explanation, unless otherwise indicated, " multiple " be meant that two or two with
On；The orientation of the instruction such as term " on ", " under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", " afterbody "
Or position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and simplifies description, and
It is not instruction or implies signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for describing purpose, and can not
It is interpreted as indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As shown in figure 1, a kind of adiabatic compression air energy storage systems of the tail gas backheat provided for the present embodiment, including air
Compressor 1, cooler 2, air storage chamber 3, throttle mechanism, tail gas regenerator 5, circulation heat recovery device 6, turbo-expander 7, high temperature circulation
Working medium source 8 and low-temperature circulating working medium source 9.
Air compressor 1, the air inlet pipe of cooler 2, air storage chamber 3, throttle mechanism, the air inlet pipe of tail gas regenerator 5, circulation
The product heat cal rod of the air inlet pipe of regenerator 6, turbo-expander 7 and tail gas regenerator 5 is sequentially connected；Low-temperature circulating working medium source 8, cooling
The heat exchanger tube circulation of the heat exchanger tube, high temperature circulation working medium source 9 and circulation heat recovery device 6 of device 2 connects.In the present embodiment, throttle mechanism
For the pressure maintaining valve 4 that throttles.
During system stored energy, air compressor 1 uses adiabatic compression mode compressed air, and compressed air is delivered into gas storage
In room 3, while the heat of compression caused by adiabatic compression process is collected by cooler 2 and is stored in high temperature circulation working medium source 9
In.
When system generates electricity, the pressure-air that air storage chamber 3 discharges is defeated with steady pressure after the throttling expansion of pressure maintaining valve 4 that throttles
Go out, first preheated through tail gas regenerator 5, then after the heat of compression for absorbing the storage of high temperature circulation working medium source 9 through circulation heat recovery device 6, enter
Expansion work and generator operation is driven in turbo-expander 7, the tail gas of turbo-expander 7 enters 5 pre- thermal throttle of tail gas regenerator
Cryogenic air after refrigeration.
Below by specific energy storage and discharge process, further details of explanation.
Thermal energy storage process；
Air compressor 1 is during system stored energy, by sucking air in air and carrying out quasi-adiabatic compression, air boosting
And the heat of compression is produced, air compressor 1 discharges high temperature air.
The high-temperature exhaust air of air compressor 1, which enters in cooler 2, to exchange heat, and temperature reduces after discharging the heat of compression, the row of cooler 2
The air gone out after cooling.Meanwhile the low-temperature circulating working medium in low-temperature circulating working medium source 8 enters cooler during system stored energy
2, temperature is raised after absorbing the heat of compression, and the high temperature circulation working medium of generation, which enters in high temperature circulation working medium source 9, to be stored.
Air after the cooling of cooler 2, which enters in air storage chamber 3, to be stored, system stored energy when air storage chamber 3 reaches maximum pressure
Journey terminates.
Power generation process；
Air storage chamber 3 discharges the pressure-air of storage in system power generation process, in deflation course the outlet pressure of air storage chamber 3 by
Gradually reduce.
The exhaust of air storage chamber 3 enters throttling pressure maintaining valve 4 and carries out throttling expansion and voltage stabilizing, and the air pressure that throttling pressure maintaining valve 4 exports is steady
The a certain value less than the highest gas storage pressure of air storage chamber 3 is scheduled on, due to throttling refrigeration effect be present, the throttling exhaust of pressure maintaining valve 4 is -20
DEG C~-15 DEG C of Cryogenic air.
Cryogenic air after throttling pressure maintaining valve 4 enters in tail gas heat exchanger 5, is exchanged heat with the tail gas from turbo-expander 7
Heating, the regulated air after the discharge heating of tail gas heat exchanger 5.
The regulated air that tail gas regenerator 5 is discharged enters circulation heat recovery device 6, and temperature raises after absorbing heat, circulation heat recovery
Device 6 discharges the regulated air of high temperature.Meanwhile the high temperature circulation working medium in high temperature circulation working medium source 9 is entered in system power generation process
Enter circulation heat recovery device 6, temperature reduces after discharging the stored heat of compression, and the low-temperature circulating working medium of generation comes back to low-temperature circulating
Stored in working medium source 8.
The high temperature regulated air that circulation heat recovery device 6 is discharged enters expansion work, air themperature and pressure in turbo-expander 7
Reduce simultaneously, turbo-expander 7 discharges 60 DEG C of low-pressure air.
The tail gas of turbo-expander 7 enters in circulation of tail gas regenerator 5, gives entrained heat transfer to throttling pressure maintaining valve 4
Air is discharged into after low temperature regulated air after throttling.
The present embodiment provides a kind of adiabatic compression air energy storage systems of tail gas backheat, by throttle mechanism with being recycled back to
Tail gas regenerator is set between hot device, makes full use of turbine expansion tail gas residual temperature, the Cryogenic air after throttle mechanism is preheated, carries
The high temperature of circulation heat recovery device intake air, and then the temperature of circulation heat exchanger outlet air is improved, enter turbo-expander
Mouth temperature lifting, improve the efficiency of utilization of system.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (4)
1. a kind of adiabatic compression air energy storage systems of tail gas backheat, it is characterised in that including air compressor, cooler, storage
Air chamber, throttle mechanism, tail gas regenerator, circulation heat recovery device, turbo-expander, high temperature circulation working medium source and low-temperature circulating working medium
Source；Wherein, the air compressor, the air inlet pipe of cooler, air storage chamber, throttle mechanism, the air inlet pipe of tail gas regenerator, circulation
The product heat cal rod of the air inlet pipe of regenerator, turbo-expander and tail gas regenerator is sequentially connected；The low-temperature circulating working medium source, cooling
The heat exchanger tube circulation of the heat exchanger tube, high temperature circulation working medium source and circulation heat recovery device of device connects.
2. compressed-air energy-storage system according to claim 1, it is characterised in that the throttle mechanism is throttling voltage stabilizing
Valve.
3. compressed-air energy-storage system according to claim 2, it is characterised in that the delivery temperature of the throttling pressure maintaining valve
For -20 DEG C~-15 DEG C.
4. compressed-air energy-storage system according to claim 1, it is characterised in that the delivery temperature of the turbo-expander
For 60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711050893.0A CN107701406A (en) | 2017-10-31 | 2017-10-31 | A kind of adiabatic compression air energy storage systems of tail gas backheat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711050893.0A CN107701406A (en) | 2017-10-31 | 2017-10-31 | A kind of adiabatic compression air energy storage systems of tail gas backheat |
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| CN107701406A true CN107701406A (en) | 2018-02-16 |
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| CN201711050893.0A Pending CN107701406A (en) | 2017-10-31 | 2017-10-31 | A kind of adiabatic compression air energy storage systems of tail gas backheat |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678917A (en) * | 2018-04-27 | 2018-10-19 | 华北电力大学 | A kind of liquid temperature differential electricity generation system using screw-rod air compressor, expanding machine |
| CN108825320A (en) * | 2018-09-11 | 2018-11-16 | 翁志远 | A kind of cryogenic fluid electricity generation system and dynamical system |
| CN109630220A (en) * | 2018-11-07 | 2019-04-16 | 清华大学 | Novel high-density air energy storage power generation |
| CN111894686A (en) * | 2020-08-12 | 2020-11-06 | 广州达都动力科技有限公司 | Industrial steam turbine capable of emergency landing and stopping and waste heat recovery power generation |
| CN112483350A (en) * | 2020-11-26 | 2021-03-12 | 清华四川能源互联网研究院 | Compressed air energy storage and exhaust comprehensive utilization system and method |
| CN112539673A (en) * | 2020-12-02 | 2021-03-23 | 上海发电设备成套设计研究院有限责任公司 | Electric-thermal-electric energy storage system and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678917A (en) * | 2018-04-27 | 2018-10-19 | 华北电力大学 | A kind of liquid temperature differential electricity generation system using screw-rod air compressor, expanding machine |
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| CN108825320A (en) * | 2018-09-11 | 2018-11-16 | 翁志远 | A kind of cryogenic fluid electricity generation system and dynamical system |
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| CN111894686A (en) * | 2020-08-12 | 2020-11-06 | 广州达都动力科技有限公司 | Industrial steam turbine capable of emergency landing and stopping and waste heat recovery power generation |
| CN112483350A (en) * | 2020-11-26 | 2021-03-12 | 清华四川能源互联网研究院 | Compressed air energy storage and exhaust comprehensive utilization system and method |
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| CN112539673A (en) * | 2020-12-02 | 2021-03-23 | 上海发电设备成套设计研究院有限责任公司 | Electric-thermal-electric energy storage system and method |
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Application publication date: 20180216 |