CN109494772A - It is a kind of using air as the energy storage peak shaving system of medium - Google Patents
It is a kind of using air as the energy storage peak shaving system of medium Download PDFInfo
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- CN109494772A CN109494772A CN201811642679.9A CN201811642679A CN109494772A CN 109494772 A CN109494772 A CN 109494772A CN 201811642679 A CN201811642679 A CN 201811642679A CN 109494772 A CN109494772 A CN 109494772A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 27
- 230000005611 electricity Effects 0.000 claims abstract description 23
- 239000003245 coal Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000010348 incorporation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000009825 accumulation Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
-
- 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)
- Power Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a kind of using air as the energy storage peak shaving system system of medium, including the first turbine LP rotors, energy-storage units and the second turbine LP rotors；When grid requirements Thermal generation unit, which participates in peak regulation, reduces online electrical power, stored by the electric energy that the first turbine LP rotors generate through energy-storage units；When grid requirements Thermal generation unit increases electricity volume, the second turbine LP rotors of energy output valve of storage are done work and are generated electricity by energy-storage units, are connected to the grid.Peak load regulation network rate for incorporation into the power network low-valley interval starts air compression storage system, stores after air is compressed, and consumption coal unit electricity reduces electricity volume；Power grid demand peak electricity price peak period starts air electricity generation system, externally confesses electricity.The system matches adapt to peak load regulation network policy, using electricity price peak-valley difference, improve unit profitability.
Description
[technical field]
It is especially a kind of using air as the energy storage peak shaving system of medium the invention belongs to new energy source energy-saving field.
[background technique]
Mainly there are heat accumulation peak regulation technique, electric boiler storage peak regulation skill applied to the technology of Thermal generation unit peak regulation at present
Art, turbine by-pass peak regulation technique etc., for the prior art while obtaining certain peak regulation effect, there are still certain drawbacks, such as
Initial cost height (electric boiler, heat accumulation) takes up a large area (heat accumulation), heat-economy poor (electric boiler, bypass) etc., the to a certain degree upper limit
The large-scale promotion application of above-mentioned peak regulation technique is made.
[summary of the invention]
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of using air as the energy storage peak shaving of medium
System.So that Thermal generation unit effectively adapts to grid power auxiliary peak regulation policy, facilitate new energy electric power such as wind energy, the sun
The consumption of energy etc., while improving Thermal generation unit profitability.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
It is a kind of using air as the energy storage peak shaving system of medium, including the first turbine LP rotors, energy-storage units and
Two turbine LP rotors；When grid requirements Thermal generation unit, which participates in peak regulation, reduces online electrical power, sent out by the first steam turbine
The electric energy that motor group generates is stored through energy-storage units；When grid requirements Thermal generation unit increases electricity volume, energy storage
The second turbine LP rotors of energy output valve of storage are done work and are generated electricity by unit, are connected to the grid.
A further improvement of the present invention lies in that:
First turbine LP rotors include the high intermediate pressure cylinder, low pressure (LP) cylinder and generator being sequentially connected.
Energy-storage units include electric air compressor, electric air compressor compressed air storage device；Generator drive
Electric air compressor inputs compressed air storage device after compressing air；The outlet side of compressed air storage device and second
Turbine LP rotors are connected.
Steam-operating air compressor is connected by inlet valve group with compressed air storage device；Compressed air storage device is logical
Outlet valve group is crossed to be connected with the second turbine LP rotors.
Compared with prior art, the invention has the following advantages:
The present invention is using air as the energy storage peak shaving system of medium, so that Thermal generation unit effectively adapts to grid power auxiliary
Peak regulation policy, facilitates the consumption of new energy electric power such as wind energy, solar energy, while improving Thermal generation unit profitability.Electricity
When net needs coal unit peak regulation to reduce electricity volume, starts electric air compression storage system, compress air to a level pressure
It is stored after power, consumption coal unit electricity reduces electricity volume；When power grid needs Thermal generation unit to increase electricity volume, starting
Air electricity generation system, externally confesses electricity.
[Detailed description of the invention]
Fig. 1 is overall structure diagram of the invention.
Wherein: 1- steam turbine high intermediate pressure cylinder；2- low pressure (LP) cylinder；3- generator；4- electric air compressor；5- inlet valve
Group；6- compressed air storage device；7- outlet valve group；8- turbo-generator group.
[specific embodiment]
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, the embodiment being not all of, and it is not intended to limit range disclosed by the invention.In addition, with
In lower explanation, descriptions of well-known structures and technologies are omitted, obscures concept disclosed by the invention to avoid unnecessary.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment should fall within the scope of the present invention.
The various structural schematic diagrams for disclosing embodiment according to the present invention are shown in the attached drawings.These figures are not in proportion
It draws, wherein some details are magnified for the purpose of clear expression, and some details may be omitted.As shown in the figure
The shape in various regions, layer and relative size, the positional relationship between them out is merely exemplary, in practice may be due to
Manufacturing tolerance or technical restriction and be deviated, and those skilled in the art may be additionally designed as required have not
Similar shape, size, the regions/layers of relative position.
In context disclosed by the invention, when one layer/element is referred to as located at another layer/element "upper", the layer/element
Can may exist intermediate layer/element on another layer/element or between them.In addition, if in a kind of court
One layer/element is located at another layer/element "upper" in, then when turn towards when, the layer/element can be located at another layer/
Element "lower".
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
The invention will be described in further detail with reference to the accompanying drawing:
Referring to Fig. 1, the present invention is using air as the energy storage peak shaving system of medium, including the first turbine LP rotors, energy storage
Unit and the second turbine LP rotors；When grid requirements Thermal generation unit, which participates in peak regulation, reduces online electrical power, by the
The electric energy that one turbine LP rotors generate is stored through energy-storage units；When grid requirements Thermal generation unit increases online electricity
When amount, the second turbine LP rotors of energy output valve 8 of storage are done work and are generated electricity by energy-storage units, are connected to the grid.First steamer
Machine generating set includes the high intermediate pressure cylinder 1, low pressure (LP) cylinder 2 and generator 3 being sequentially connected.Energy-storage units include electric air compressor
4,4 compressed air storage device 6 of electric air compressor；Generator 3 inputs after driving electric air compressor 4 to compress air
Compressed air storage device 6；The outlet side of compressed air storage device 6 is connected with the second turbine LP rotors 8.Steam-operating air
Compressor 6 is connected by inlet valve group 5 with compressed air storage device 6；Compressed air storage device 6 passes through outlet valve group
7 are connected with the second turbine LP rotors 8.
The working principle of the invention:
Surrounding air is compressed to after certain pressure and is delivered to storage device by electric air compressor, electronic after storage
Air compressor is stopped transport.The pressure-air come from storage device is entered gas-turbine acting power generation, power grid is delivered to, in storage device
Pressure-air exhaust rear turbo-generator group and stop transport.This is a cycle period.Specific work process is as follows:
When grid requirements Thermal generation unit, which participates in peak regulation, reduces online electrical power, electric air compressor 4 starts, entrance
Valve group 5 is opened, and surrounding air enters compressed air storage device 6 after air compressor 4 is compressed to certain pressure and stores, this
When outlet valve group 7 close, turbo-generator group 8 is stopped transport.This stage high pressure air storage system plays consumption coal fired power generation machine
Group electrical power, the effect for reducing electricity volume.When grid requirements Thermal generation unit increases electricity volume, electric air compression
Machine 4 is stopped transport, and inlet valve group 5 is closed.Outlet valve group 7 is opened, put into operation turbo-generator group 8, from compressed air storage device
The pressure-air come enters the acting power generation of turbo-generator group 8, is connected to the grid.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (4)
1. a kind of using air as the energy storage peak shaving system of medium, which is characterized in that including the first turbine LP rotors, energy storage list
Member and the second turbine LP rotors；When grid requirements Thermal generation unit, which participates in peak regulation, reduces online electrical power, by first
The electric energy that turbine LP rotors generate is stored through energy-storage units；When grid requirements Thermal generation unit increases electricity volume
When, the second turbine LP rotors of energy output valve (8) of storage are done work and are generated electricity by energy-storage units, are connected to the grid.
2. the air energy storage peak shaving system according to claim 1 applied to Thermal generation unit, which is characterized in that first
Turbine LP rotors include the high intermediate pressure cylinder (1), low pressure (LP) cylinder (2) and generator (3) being sequentially connected.
3. the air energy storage peak shaving system according to claim 2 applied to Thermal generation unit, which is characterized in that energy storage
Unit includes electric air compressor (4), electric air compressor (4) compressed air storage device (6)；Generator (3) driving
Electric air compressor (4) inputs compressed air storage device (6) after compressing air；Compressed air storage device (6) goes out
Gas end is connected with the second turbine LP rotors (8).
4. the air energy storage peak shaving system according to claim 3 applied to Thermal generation unit, which is characterized in that steam-operating
Air compressor (6) is connected by inlet valve group (5) with compressed air storage device (6)；Compressed air storage device (6) is logical
Outlet valve group (7) is crossed to be connected with the second turbine LP rotors (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811642679.9A CN109494772A (en) | 2018-12-29 | 2018-12-29 | It is a kind of using air as the energy storage peak shaving system of medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811642679.9A CN109494772A (en) | 2018-12-29 | 2018-12-29 | It is a kind of using air as the energy storage peak shaving system of medium |
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| CN109494772A true CN109494772A (en) | 2019-03-19 |
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| CN201811642679.9A Pending CN109494772A (en) | 2018-12-29 | 2018-12-29 | It is a kind of using air as the energy storage peak shaving system of medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546670A (en) * | 2018-12-29 | 2019-03-29 | 西安西热节能技术有限公司 | A kind of air energy storage peak shaving system applied to Thermal generation unit |
| CN113090509A (en) * | 2021-04-08 | 2021-07-09 | 西安热工研究院有限公司 | Compressed air energy storage coupled thermal power generating unit deep peak shaving system and method |
| CN113756893A (en) * | 2021-08-27 | 2021-12-07 | 北京工业大学 | Multi-unit combined operation flexibility adjusting system among multiple power plants |
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| US20110094236A1 (en) * | 2009-10-27 | 2011-04-28 | Matthias Finkenrath | System and method of using a compressed air storage system with a gas turbine |
| CN102900482A (en) * | 2012-07-24 | 2013-01-30 | 山东泓奥电力科技有限公司 | Energy-saving heat supply system with middle-positioned generator and back-positioned back-pressure machine |
| CN103821575A (en) * | 2014-03-11 | 2014-05-28 | 华北电力大学 | Deep load changing generating device with capacity increasing and transmission gain function |
| RU2647013C1 (en) * | 2017-02-27 | 2018-03-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Method of operation of the compressed-air power station |
| CN108224535A (en) * | 2018-01-18 | 2018-06-29 | 中国科学院工程热物理研究所 | A kind of thermal power plant's cogeneration of heat and power and compressed-air energy storage complementation integrated system |
| CN108757066A (en) * | 2018-06-13 | 2018-11-06 | 华电电力科学研究院有限公司 | Fired power generating unit backheat hold over system and operation method for load responding |
| CN209402161U (en) * | 2018-12-29 | 2019-09-17 | 西安西热节能技术有限公司 | It is a kind of using air as the energy storage peak shaving system of medium |
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2018
- 2018-12-29 CN CN201811642679.9A patent/CN109494772A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110094236A1 (en) * | 2009-10-27 | 2011-04-28 | Matthias Finkenrath | System and method of using a compressed air storage system with a gas turbine |
| CN102900482A (en) * | 2012-07-24 | 2013-01-30 | 山东泓奥电力科技有限公司 | Energy-saving heat supply system with middle-positioned generator and back-positioned back-pressure machine |
| CN103821575A (en) * | 2014-03-11 | 2014-05-28 | 华北电力大学 | Deep load changing generating device with capacity increasing and transmission gain function |
| RU2647013C1 (en) * | 2017-02-27 | 2018-03-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Method of operation of the compressed-air power station |
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| CN108757066A (en) * | 2018-06-13 | 2018-11-06 | 华电电力科学研究院有限公司 | Fired power generating unit backheat hold over system and operation method for load responding |
| CN209402161U (en) * | 2018-12-29 | 2019-09-17 | 西安西热节能技术有限公司 | It is a kind of using air as the energy storage peak shaving system of medium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546670A (en) * | 2018-12-29 | 2019-03-29 | 西安西热节能技术有限公司 | A kind of air energy storage peak shaving system applied to Thermal generation unit |
| CN113090509A (en) * | 2021-04-08 | 2021-07-09 | 西安热工研究院有限公司 | Compressed air energy storage coupled thermal power generating unit deep peak shaving system and method |
| CN113756893A (en) * | 2021-08-27 | 2021-12-07 | 北京工业大学 | Multi-unit combined operation flexibility adjusting system among multiple power plants |
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