CN105927390B - A kind of compressed air energy-storing electricity electricity generation system - Google Patents
A kind of compressed air energy-storing electricity electricity generation system Download PDFInfo
- Publication number
- CN105927390B CN105927390B CN201610477332.8A CN201610477332A CN105927390B CN 105927390 B CN105927390 B CN 105927390B CN 201610477332 A CN201610477332 A CN 201610477332A CN 105927390 B CN105927390 B CN 105927390B
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- China
- Prior art keywords
- holding vessel
- compressed air
- pipeline
- electricity
- heat exchanging
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- 230000005611 electricity Effects 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 25
- 238000004146 energy storage Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 28
- 238000007667 floating Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 9
- 238000002955 isolation Methods 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/08—Heating air supply before combustion, e.g. by exhaust gases
- F02C7/10—Heating air supply before combustion, e.g. by exhaust gases by means of regenerative heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/14—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
- F02C6/16—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads for storing compressed air
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The energy-storing and power-generating system of power system peak load regulation, for, by trough electricity storage energy, being generated electricity to be regulated and controled hence for power network Wave crest and wave trough in electricity consumption crest in power network electricity consumption trough.Wherein, heat-exchanger rig is set in air energy storage tank, the position of heat exchange pipeline in the heat-exchanger rig can change according to the SEA LEVEL VARIATION of air energy storage tank, so as to avoid storing influence of the water volatilization for electricity generation system subsequent parts caused by compressed air heating.
Description
Technical field
The present invention relates to a kind of energy-storage generating apparatus, is especially for the gas turbine storage for meeting peak load regulation
Can electricity generation system.
Background technology
Power industry is one of lifeblood industry of national development as social base industry.With China's economic, society is high
Speed development, electricity needs is growing, and China electric power industry construction enters fast-developing period.As scientific and technological progress and society need
The promotion asked, power network just from it is traditional it is defeated, become, distribution accelerates to meet that social resources distribute the energy into major function rationally
Carrying, the platform of energy game develop.Under the overall background of Energy restructuring, as power system is transported to safe efficient, stable
The requirement of the conditions such as row is more and more high, and the development of China's power network gradually steps into a brand-new stage --- intelligent grid.Therefore,
Build an efficiency height, invest intelligent grid that is low, safe and reliable, flexibly straining as the developing direction of China's power network.
Intelligent grid is a hybrid system for having gathered a variety of contemporary advanceds, and these technologies include power electronics skill
Art, information technology, energy storage technology, sensing measurement technology etc., and energy storage technology is a wherein vital ring, it is in intelligent electricity
It is significant in net：1) can effectively smooth load curve and round the clock peak-valley difference, realize dsm；2) adjust
Mains frequency, stabilize the fluctuation of load, safeguards system stable operation；3) user side accessory power supply, the quality of power supply and power supply are improved
Reliability；4) configuration for optimizing regenerative resource utilizes, and promotes regenerative resource exploitation.
Compressed air energy storage technology is a kind of energy storage technology of current relatively broad application, and its cardinal principle utilizes power train
The dump power of system load valley period is compressed air operation, and is stored in high pressure sealing facility, in load height
The peak period discharges to drive gas turbine power generation.Compressed air energy storage technology has cost low, and security is higher, fortune
Row is reliable, the advantages that long lifespan.
The patent of invention of typical compressed-air energy-storage system in the prior art, such as 200710098467.4, including compression
Machine, gas storage, combustion chamber, gas turbine and generator；In electric load low ebb, using power network electrical energy drive motor,
Motor driven compressor compressed air is sent into gas storage；At electric load peak, the compressed air discharged by gas storage exists
Combustion gas after combustion chambers burn is generated electricity into gas turbines driving generators, and electric energy is sent into power network.It is but such
Compressed-air energy-storage system, with the discharge of gas storage compressed air, its air pressure gradually reduces, so as to cause gas turbine
Efficiency declines.As the improvement of prior art, 200780031109.X proposes a kind of compressed-air energy storage generating system of constant pressure
System, its air accumulator include two air accumulators connected by hydraulic pump/motor, storage are set between two air accumulators
Water, water is stored by hydraulic pump control and flowed between two air accumulators, so as to change the volume of exhaust air accumulator to ensure to press
Strong stability, so as to ensure that the stabilised efficiency of gas turbine.But in the improved technical scheme, due to drawing in air accumulator
Storage water is entered, it may volatilize in exhaust process, so as to increase the moisture of compressed air, cause downstream gas turbine, change
Either instrument due to corrosion caused by moisture or is degenerated for hot device, pipe-line system.
In order to solve the above problems, applicant proposed the invention of improved compressed-air energy-storage system, in constant-pressure gas storage
The sealing isolation layer of solid-state or liquid is set between the compressed air and storage water termination of tank, while set in transformation air accumulator
Thermal is replaced, temperature caused by reducing the hollow air pressure contracting of transformation air accumulator influences, so as to reduce shadow of the temperature for water evaporation
Ring.But because the water level in transformation air accumulator is change, after the water level of storage water is higher than heat-exchanger rig height, it will
Influence cooling of the heat-exchanger rig for compressed air.
The content of the invention
As one aspect of the present invention, there is provided a kind of compressed air energy-storing electricity electricity generation system, including：Compressor, the
One holding vessel, the second holding vessel, hydraulic pump/motor, gas turbine and generator；The compressor, for storing up
Driven during energy by motor and be compressed atmospheric air；First holding vessel, it is provided with air intake and sky
Gas exports, and can receive the compressed air of compressor by air intake, can be discharged compressed air by air outlet slit；Institute
The second holding vessel is stated, is connected by connecting pipeline with first holding vessel；The hydraulic pump/motor, is arranged at
The connecting pipeline, according to hydraulic pump/motor described in the pressure operation of first holding vessel, so that described first
Holding vessel keeps constant pressure；The gas turbine, utilize the combustion gas after the compressed air of the first holding vessel discharge and fuel combustion
Body drives；The generator, generated electricity by the driving of the gas turbine；It is characterized in that：Also include heat-exchange system；Institute
Stating heat-exchange system includes：Coaxial the first pipeline and the second pipeline；Heat exchanging pipe, the heat exchanging pipe and first pipeline and
Second pipeline connects, and not coaxial with first pipeline and the second pipeline, and can surround first pipeline and the
Axis rotation where two pipelines；Floating unit, the floating unit are arranged at below the heat exchanging pipe, in the described second storage
When depositing the water level rising of tank, the heat exchanging pipe can be promoted to rotate up, so that the heat exchanging pipe is positioned at the second storage
On the water level of tank.
Preferably, the floating unit is floating plate, and it can provide the buoyancy more than the heat exchanging pipe gravity.
Preferably, the heat-exchange system communicates with cooling medium conveyer, can by the cooling medium conveyer to
The heat exchanger tube conveys cooling medium, so as to reduce the temperature of air in the second holding vessel.
Preferably, the cooling medium is air or water.
As another aspect of the present invention, there is provided system is dispatched in a kind of intelligent grid electric load energy storage, and it includes
Above-mentioned compressed air energy-storing electricity electricity generation system.
Brief description of the drawings
Fig. 1 is the structured flowchart of the compressed air energy-storing electricity electricity generation system of one embodiment of the invention.
Fig. 2 is the situation of change schematic diagram of heat exchanging pipe when the second holding vessel is in different water levels in the embodiment of the present invention.
Embodiment
According to specific exemplary embodiment, invention has been described herein.Those skilled in the art is come
Say and carrying out appropriate replacement without departing from the scope of the invention or modification will be apparent.Exemplary embodiment is only
It is illustrative, rather than limiting the scope of the present invention, the scope of the present invention is defined by the appended.
The compressed air energy-storing electricity electricity generation system of first embodiment of the invention, referring to Fig. 1, including compressor 1, cooler
2, the first holding vessel 3, hydraulic pump/motor 4, the second holding vessel 5, dehydrating unit 6, heat exchanger 7, combustion chamber 8, combustion gas wheel
Machine 9, generator 10 and heat-exchanger rig.
Extraneous air is compressed so as to store electric power by compressor 1, in power load low ebb, is utilized by motor
Low ebb electrically-driven compressors 1 operate, so as to store the energy in compressed air.Compressor 1 can be single compressor or
Compressor set including compound compressor.
Air temperature after being compressed raises, and cooler 2 is used for the air cooling-down after will heat up, so as to be pressed into compressed air
Storage tank.Compressed air storage tank includes the first holding vessel 3, the holding vessel 5 of hydraulic pump/motor 4 and second.First storage
It is rigid container to deposit the holding vessel 5 of tank 3 and second, while storage water is accommodated in compressed air storage tank, and it passes through the second storage
Pressure differential or hydraulic pump drive between the holding vessel 3 of tank 5 and first, so as to the second holding vessel 5 and the first holding vessel 3 it
Between flow, keep the first holding vessel 3 pressure it is constant.
First holding vessel 3 has compressed air inlet 31 and compressed air outlet 32.In the electricity consumption trough energy storage stage,
When first holding vessel 3 receives compressed air by compressed air inlet 31, hydraulic pump uses trough electricity as fluid power motor
Energy source, storage water is transported in the second holding vessel 5, so as to increase the receiving compressed air volume in the first holding vessel 3,
Keep the pressure in the first holding vessel 3 constant.The energy stage is released in electricity consumption crest, passes through compressed air outlet in the first holding vessel 3
32 discharge compressed airs, by the pressure differential between the second holding vessel 5 and the first holding vessel 3, storage water is transported to first
In holding vessel 3, so as to reduce the receiving compressed air volume in the first holding vessel 3, pressure in the first holding vessel 3 is kept not
Become；Store water drives engine to be generated electricity simultaneously in moving process.Can be by monitoring the air pressure in the first holding vessel 3
By force, so as to controlling hydraulic pump/motor 4.
Heat-exchanger rig includes cooling medium conveyer 12, the first pipeline 13, the second pipeline 14, heat exchanging pipe 15 and floating
Unit 16.Cooling medium conveyer 12 is used for the second holding vessel 5 conveying cooling medium, and the cooling medium can pass through heat exchanging pipe
15 with holding vessel in air heat-exchange, so as to reduce the temperature of air in the second holding vessel 5.Cooling medium can be water or
Air, when cooling medium is water, cooling medium conveyer 12 can be delivery pump, and when cooling medium is air, cooling is situated between
Matter conveyer 12 can be such as air blast pump.
First pipeline 13 is cooling medium intake line, and the second pipeline 14 is cooling medium output pipe, the first pipeline 13
It is coaxially disposed with the second pipeline 14.Heat exchanging pipe 15 is connected with the first pipeline 13 and the second pipeline 14 respectively, and is managed with first
The pipeline 14 of road 13 and second is not coaxial, and can surround when receiving active force the first pipeline 13 and where the second pipeline 14
Axis rotates, and for example movable threaded connection can be used to realize.
As shown in Fig. 2 when the second holding vessel is in different water levels heat exchanging pipe 15 change in location.Floating unit 16 is set
In the lower section of heat exchanging pipe 15, it is less than the material manufacture of water using density, upward active force can be provided by buoyancy；
When the water level of two holding vessels 5 rises, floating unit 16 rises therewith, and heat exchanging pipe 15 can be promoted to rotate up, so that changing
Pipe line 15 is located on the water level of the second holding vessel 5；In the water level decreasing of the second holding vessel 5, floating unit 16 is under
Drop, heat exchanging pipe 15 are rotated down go back to original position due to Action of Gravity Field.
In trough energy storage, the air in the second holding vessel 5, so as to which temperature raises, is opened cooling medium conveying by compression
Device 12, by heat exchanging pipe 15 by the air cooling-down in the second holding vessel 5；When compressed air energy-storing electricity electricity generation system is in electricity consumption
When crest generates electricity, cooling medium conveyer is closed.
When crest generates electricity, lack of gas output flow path of the heat exchanger 7 respectively with compressed air stream and gas turbine communicates,
Wherein compressed air is heated by the output lack of gas of gas turbine, so as to improve the efficiency of combustion chamber.Combustion chamber 8 is set
After heat exchanger 7, compressed air is burnt with fuel in combustion chamber 8, so as to export combustion gas.Output combustion gas is transported to
Gas turbine 9, driving gas turbine 9 make coupled generator 10 be generated electricity.
In order to further remove the moisture in compressed air, it can set and remove in compressed air energy-storing electricity electricity generation system
Wet device 6.Dehydrating unit 6 is arranged at the rear end pipeline of the air outlet slit 32 of the first holding vessel 3, empty for further removing compression
Moisture in gas, so as to ensure that subsequent parts are not influenceed by moisture.Dehydrating unit 6, which can use, includes drier or ethylene glycol
At least one of；Optionally, dehydrating unit 6 includes condenser, and the moisture in compressed air is removed by way of condensation.It is excellent
Choosing, isolation layer can be set between the compressed air interface of the first holding vessel 3 and storage water termination, so as to reduce storage water
Volatilization.Isolation layer can be solid isolation layer or fluid isolation layer.Solid isolation layer is can be along the axle of the first holding vessel 3
The isolated element that line freely up and down moves, it could be arranged to " work " shape, and bottom is seal, preferably can be in isolated element
The low part of sealing on heat insulation layer is set.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.For the ordinary skill people of the art
For member, some improvements and modifications without departing from the principles of the present invention, it should be regarded as falling into protection scope of the present invention.
Claims (3)
1. a kind of compressed air energy-storing electricity electricity generation system, including：Compressor, the first holding vessel, the second holding vessel, hydraulic pump/
Engine unit, gas turbine and generator；The compressor, for by motor driving and normal pressure is empty in energy storage
Gas is compressed；First holding vessel, it is provided with air intake and air outlet slit, can receive pressure by air intake
The compressed air of contracting machine, compressed air can be discharged by air outlet slit；Second holding vessel, passes through connecting pipeline and institute
The first holding vessel is stated to be connected；The hydraulic pump/motor, the connecting pipeline is arranged at, according to the described first storage
Hydraulic pump/motor described in the pressure operation of tank, so that first holding vessel keeps constant pressure；The gas turbine,
Driven using the burning gases after the compressed air of the first holding vessel discharge and fuel combustion；The generator, by described
The driving of gas turbine and generate electricity；It is characterized in that：Also include heat-exchanger rig；The heat-exchanger rig includes：The first coaxial pipe
Road and the second pipeline；Heat exchanging pipe, the heat exchanging pipe are connected with first pipeline and the second pipeline, and with described first
Pipeline and the second pipeline be not coaxial, and can surround the axis rotation where first pipeline and the second pipeline；Float single
Member, the floating unit are arranged at below the heat exchanging pipe, when the water level of second holding vessel rises, can promote institute
State heat exchanging pipe to rotate up, so that the heat exchanging pipe is located on the water level of the second holding vessel.
2. compressed air energy-storing electricity electricity generation system according to claim 1, it is characterised in that：The floating unit is floating
Dynamic flat board, it can provide the buoyancy more than the heat exchanging pipe gravity.
3. system is dispatched in a kind of intelligent grid electric load energy storage, it includes the compressed air energy described in one of claim 1-2
Amount storage electricity generation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610477332.8A CN105927390B (en) | 2016-06-27 | 2016-06-27 | A kind of compressed air energy-storing electricity electricity generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610477332.8A CN105927390B (en) | 2016-06-27 | 2016-06-27 | A kind of compressed air energy-storing electricity electricity generation system |
Publications (2)
| Publication Number | Publication Date |
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| CN105927390A CN105927390A (en) | 2016-09-07 |
| CN105927390B true CN105927390B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610477332.8A Expired - Fee Related CN105927390B (en) | 2016-06-27 | 2016-06-27 | A kind of compressed air energy-storing electricity electricity generation system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10465565B2 (en) * | 2016-12-02 | 2019-11-05 | General Electric Company | Method and system for carbon dioxide energy storage in a power generation system |
| US20230243599A1 (en) * | 2019-06-19 | 2023-08-03 | Pascal Lalanne | Thermoelectric device for storage or conversion of energy |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4213023A1 (en) * | 1992-04-21 | 1993-10-28 | Asea Brown Boveri | Process for operating a gas turbine group |
| KR100792790B1 (en) * | 2006-08-21 | 2008-01-10 | 한국기계연구원 | Compressed air energy storage generation system and power generation method using it |
| CN101289963A (en) * | 2007-04-18 | 2008-10-22 | 中国科学院工程热物理研究所 | Compressed-air energy-storage system |
| FR2945326B1 (en) * | 2009-05-07 | 2011-04-29 | Ecoren | METHOD AND EQUIPMENT FOR MECHANICAL ENERGY STORAGE BY COMPRESSION AND QUASI-ISOTHERMAL RELAXATION OF A GAS |
| US9022692B2 (en) * | 2009-09-23 | 2015-05-05 | Bright Energy Storage Technologies, Llp | System for underwater compressed fluid energy storage and method of deploying same |
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Inventor after: Xu Jinlan Inventor before: Huang Youfeng |
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Effective date of registration: 20171031 Address after: 211100, Jiangsu province Nanjing Jiangning Qilin Technology Innovation Park wisdom road No. 300 Applicant after: Nanjing Han Xi Automation Technology Co., Ltd. Address before: 350000 Fuzhou, Gulou District, Fujian City, the new right road, No. 29 Applicant before: Huang Youfeng |
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Effective date of registration: 20191118 Address after: Room 302, No. 8319, Yanshan Road, Bengbu City, Anhui Province Patentee after: Bengbu Lichao Information Technology Co., Ltd Address before: 211100 No. 300 Zhihui Road, Qilin Science and Technology Innovation Park, Jiangning District, Nanjing City, Jiangsu Province Patentee before: Nanjing Han Xi Automation Technology Co., Ltd. |
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Effective date of registration: 20210707 Address after: Shop 434, guantian building, no.6, Xinghua East Road, Ronggui Bianjiao neighborhood committee, Shunde District, Foshan City, Guangdong Province, 528300 Patentee after: Foshan Shunde Futong Environmental Protection Technology Co.,Ltd. Address before: 8319 Yanshan Road, Bengbu City, Anhui Province Patentee before: Bengbu Lichao Information Technology Co.,Ltd. |
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Granted publication date: 20171128 Termination date: 20210627 |