CN101289963A - Compressed-air energy-storage system - Google Patents

Compressed-air energy-storage system Download PDF

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Publication number
CN101289963A
CN101289963A CN 200710098467 CN200710098467A CN101289963A CN 101289963 A CN101289963 A CN 101289963A CN 200710098467 CN200710098467 CN 200710098467 CN 200710098467 A CN200710098467 A CN 200710098467A CN 101289963 A CN101289963 A CN 101289963A
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China
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compressed air
energy storage
storage system
high pressure
air energy
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CN 200710098467
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Chinese (zh)
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张冬阳
王会社
剑 许
谭春青
陈海生
陈重韬
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中国科学院工程热物理研究所
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Priority to CN 200710098467 priority Critical patent/CN101289963A/en
Publication of CN101289963A publication Critical patent/CN101289963A/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/15Pressurised fluid storage

Abstract

The invention discloses a compressed air energy storage system, in particular to a compressed air energy storage system for an electric power system. The compressed air energy storage system disclosed by the invention has reasonable structure, flexible layout, high energy conversion efficiency, good economical efficiency and peakload regulation performance, rapid startup, safety and reliability. The compressed air energy storage system applying the invention can be used for despicking and valley filling of the electric power system, energy storage of renewable energy source and power supply when the renewable energy source is in supply intermission or in shortage in an electric network, and can be used as an emergency power station, an energy accumulator of distributed energy resource and other equipment for electric power energy storage.

Description

压縮空气储能系统 Compressed air energy storage system

技术领域 FIELD

本发明涉及储能技术领域,是一种压縮空气储能系统,具体地说,是一种用于电力系统的压縮空气储能系统。 The present invention relates to the field of storage technology, it is a compressed air energy storage system, in particular, compressed air energy storage system for an electric power system.

背景技术 Background technique

压縮空气储能系统利用电能压縮空气并储存于地下或地上腔室中,在需要输出电能的时候,压縮空气被放出,加热及燃烧并驱动透平发电。 Compressed air energy storage system using compressed air energy and stored in an underground chamber or on the ground, when the output power required, the compressed air is discharged, and the heating and combustion turbine driven generator. 在中华人民共和国,至今还没有投入运行的压縮空气储能电站,也未见压縮空气储能电站的设计方法公布。 In the People's Republic, has yet to put compressed air energy storage power plants running, also announced no compressed air energy storage power station design.

发明内容 SUMMARY

本发明提出了一种压縮空气储能系统,可用于压缩空气储能电站,提高电网效率。 The present invention proposes a compressed air energy storage system, it can be used compressed air energy storage power plants, to improve power efficiency.

为达到上述目的,本发明的技术解决方法是: 一种压缩空气储能系统, 包括电动机、压缩机、后冷却器、储气库、回热器、发电机、高压透平、 低压燃烧室、低压透平;其电动机与压缩机相连,压縮机、后冷却器、储气库顺序连接相通,高压透平与发电机相连,高压透平、低压燃烧室、低压透平与回热器串联相通组成热端气体流路;利用电网电能驱动电动机,电动机驱动压縮机压縮大气,压縮空气经后冷却器冷却后送入储气库;需要时,由储气库放出高压空气至回热器,高压空气在回热器中,由透平排气加热,加热后的压縮空气送入透平驱动发电机发电,并将电能送入电网。 To achieve the above object, the technical solution of the invention is: A compressed air energy storage system includes a motor, a compressor, an aftercooler, gas storage, recuperator, a generator, high pressure turbine, a low pressure combustion chamber, low pressure turbine; the electric motor connected to the compressor, the compressor aftercooler, gas storage connected sequentially communicated to the high pressure turbine connected to a generator, high pressure turbine, a low-pressure combustion chamber, a low pressure turbine connected in series with the regenerator composition of the gas passage communicating the warm end; electricity grid by using the drive motor, the motor driving the compressor compressing atmospheric air, the compressed air into the gas storage after cooler; if necessary, the high pressure air discharged from the gas storage to back heat, high pressure air in the regenerator is heated by the exhaust gas turbine, compressed air is fed into the heated turbine generator to produce electricity, and electrical energy into the power grid. 所述的压缩空气储能系统,其所述储气库或位于地质层中,或位于地上。 The compressed air energy storage system, which is located in the gas storage or geological formations, or in the ground. 所述的压缩空气储能系统,其所述地质层,为盐岩洞、石灰岩洞、含水层。 The compressed air energy storage system, which is the geological layer, salt caves, limestone cave, the aqueous layer. 所述的压縮空气储能系统,其所述压縮机,至少为一个。 The compressed air energy storage system of the compressor, at least one. 所述的压缩空气储能系统,其在每相邻的两个压縮机之间可设有压缩机级间冷却器。 The compressed air energy storage system, in which between each adjacent two compressors may be provided with inter-stage cooler compressor. 所述的压縮空气储能系统,其所述高压透平、低压燃烧室、低压透平与回热器连接相通组成的气体流路中,还有高压燃烧室,高压燃烧室位于高压透平前端。 The compressed air energy storage system, which is the high pressure turbine, a low-pressure combustion chamber, a low pressure turbine connected in communication with the regenerator composed of a gas flow passage, and the high pressure combustion chamber, the combustion chamber is located in the high pressure high pressure turbine front end. 附图说明图1是本发明的无高压燃烧室和压縮机级间冷却器的设计方法示意图;图2是本发明的具有高压燃烧室和压縮机级间冷却器的设计方法示意图;具体实施方式下面结合附图和具体实施例对本发明做进一步详细描述。 BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic view of the combustion chamber and between the compressor stage without high pressure cooler design method of the present invention; FIG. 2 is a schematic view of a combustion chamber design and a method having a high pressure compressor stage inter-cooler of the present invention; in particular The following embodiments do the drawings and specific embodiments of the present invention is described in further detail in conjunction. 实施例1:图1所示为本发明的无高压燃烧室和压缩机级间冷却器的压縮空气储能系统。 Example 1: between the combustion chamber and without high pressure compressor stage coolers compressed air energy storage system of the present invention shown in FIG. 该压縮空气储能系统主要由电动机1、压縮机2、后冷却器3、储气库4、回热器5、发电机6、高压透平7、低压燃烧室8、 低压透平9等部件组成。 The compressed air energy storage system consists of an electric motor, the compressor 2, cooler 3, gas storage 4, regenerator 5, a generator 6, 7 high pressure turbine, a low pressure combustion chamber 8, low pressure turbine 9 and other components. 其中,电动机l、压縮机2、后冷却器3、储气库4顺序按常规连接相通,高压透平7、低压燃烧室8、低压透平9、回热器5按常规连接相通组成流路,高压透平7与发电机6相连。 Wherein the motor L, the compressor 2, cooler 3, gas storage connected to a conventional communication sequence 4, 7 high pressure turbine, a low pressure combustion chamber 8, low pressure turbine 9, the regenerator 5 is connected to a conventional elementary stream communication Road, high pressure turbine connected to a generator 6 and 7. 利用电网电能驱动电动机,电动机1驱动压縮机2压縮大气10,压缩空气经后冷却器3冷却后送入储气库4;储气库4可建于地下,可以为盐岩洞、石灰岩洞、含水层,或位于其它地质层中,也可位于地上;需要时, 由储气库4放出高压空气至回热器5,高压空气在回热器5中,由透平排气加热,加热后的压縮空气送入高压透平7和低压透平9驱动发电机6发电,并将电能送入电网。 Electricity grid by using the drive motor, the motor driving the compressor 2 compresses air 10, compressed air is fed through the gas storage 3 4 aftercooler cooling; gas storage 4 may be built in the ground, may be a salt caves, limestone cave , aquifer, geological layer or in the other, may be located on the ground; when necessary, a discharged gas storage 4 high-pressure air to the regenerator 5, the high pressure air in the regenerator 5, the turbine exhaust is heated by heating after the compressed air into high pressure turbine 7 and the low pressure turbine 9 drives the power generator 6 and into the electricity grid. 低压燃烧室8为高压透平7和低压透平9中的气体提供热量。 High pressure turbine a low-pressure combustion chamber 8 7 9 provide heat and gas for the low pressure turbine. 发电机6与电动机1可以分离,也可以为一体。 6 may be separated from the motor generator 1, it may be integrated. 实施例2:如图2所示为本发明的具有高压燃烧室和压縮机级间冷却器的压縮空气储能系统。 Example 2: As shown in FIG 2 of the present invention a compressed air energy storage system having a combustor and a high pressure between the compressor stage coolers. 该压缩储能系统主要由电动机1、低压压缩机11、 高压压縮机12、压縮机中间冷却器13、后冷却器3、储气库4、回热器5、 发电机6、高压燃烧室14、高压透平7、低压燃烧室8、低压透平9等部件组成。 The storage system consists of a motor compressor 1, the low pressure compressor 11, a high pressure compressor 12, the compressor intercooler 13, the aftercooler 3, gas storage 4, regenerator 5, a generator 6, high-pressure combustion chamber 14, high pressure turbine 7, a low-pressure combustion chamber 8, the low-pressure turbine 9 and other components. 其电动机l、低压压縮机ll、高压压縮机12、后冷却器3、储气库4、回热器5、高压燃烧室14、低压燃烧室8、高压透平7和低压透平9、发电机的连接状态与实施例1基本相同。 Motor which L, a low pressure compressor ll, a high pressure compressor 12, after cooler 3, gas storage 4, regenerator 5, a high pressure combustion chamber 14, a low-pressure combustion chamber 8, the high pressure turbine and the low pressure turbine 7 9 , the connection state of the generator of Example 1 is substantially the same. 区别在于,有至少两个压缩机(高压、低压压縮机)串接,两压縮机之间设有压縮机中间冷却器;在回热器与高压透平、低压燃烧室、低压透平按常规连接相通的流路里,位于回热器与高压透平之间,还设有高压燃烧室。 The difference is that there are at least two compressors (high pressure, low-pressure compressor) connected in series, a compressor intercooler between two compressor; regenerator through the high pressure turbine, a low-pressure combustion chamber, a low pressure conventional flat channel communication connection, the regenerator is located between the high pressure turbine, a high pressure combustion chamber is also provided. 压縮机级中冷却器也可以为零个,随着压縮机数目的增加,压縮机级中冷却器可以为两个,或多个。 The compressor stage coolers can be a zero, increases as the number of compressors, a compressor stage the cooler may be two, or more.

Claims (6)

1、一种压缩空气储能系统,包括电动机、压缩机、后冷却器、储气库、回热器、发电机、高压透平、低压燃烧室、低压透平;其特征在于,电动机与压缩机相连,压缩机、后冷却器、储气库顺序连接相通,高压透平与发电机相连,高压透平、低压燃烧室、低压透平与回热器串联相通组成热端气体流路; 利用电网电能驱动电动机,电动机驱动压缩机压缩大气,压缩空气经后冷却器冷却后送入储气库;需要时,由储气库放出高压空气至回热器,高压空气在回热器中,由透平排气加热,加热后的压缩空气送入透平驱动发电机发电,并将电能送入电网。 A compressed air energy storage system includes a motor, a compressor, an aftercooler, gas storage, recuperator, a generator, high pressure turbine, a low-pressure combustion chamber, a low pressure turbine; characterized in that the electric motor and the compression machine connected to the compressor, after the cooler, gas storage connected sequentially communicated to the high pressure turbine connected to a generator, high pressure turbine, a low-pressure combustion chamber, a low pressure turbine in series with the regenerator composition of the hot end of the gas communicating passage; using electricity grid drive motor, the motor driving the compressor compressing atmospheric air, the compressed air into the gas storage after cooler; if necessary, the high pressure air discharged from the gas storage to the regenerator, high pressure air in the regenerators by the turbine exhaust is heated, compressed air into the heat turbine generator to produce electricity, and electrical energy into the power grid.
2、 如权利要求1所述的压縮空气储能系统,其特征在于,所述储气库或位于地质层中,或位于地上。 2, compressed air energy storage system as claimed in claim 1, wherein said gas storage or in the geological formations, or in the ground.
3、 如权利要求2所述的压縮空气储能系统,其特征在于,所述地质层,为盐岩洞、石灰岩洞、含水层。 3, compressed air energy storage system as claimed in claim 2, wherein said geologic formation, a salt caves, limestone cave, the aqueous layer.
4、 如权利要求1所述的压縮空气储能系统,其特征在于,所述压缩机,至少为一个。 4, compressed air energy storage system as claimed in claim 1, characterized in that the compressor, at least one.
5、 如权利要求4所述的压縮空气储能系统,其特征在于,在每相邻的两个压縮机之间设有压缩机级间冷却器。 5, compressed air energy storage system as claimed in claim 4, characterized in that a compressor inter-stage cooler between each adjacent two compressors.
6、 如权利要求1所述的压縮空气储能系统,其特征在于,所述高压透平、低压燃烧室、低压透平与回热器连接相通组成的气体流路中,还有高压燃烧室,高压燃烧室位于高压透平前端。 6, compressed air energy storage system as claimed in claim 1, wherein said high pressure turbine, a low-pressure combustion chamber, a low pressure turbine and regenerator communication connection gas flow channel consisting of, as well as high-pressure combustion chamber, the high pressure combustion chamber located in the front end of the high pressure turbine.
CN 200710098467 2007-04-18 2007-04-18 Compressed-air energy-storage system CN101289963A (en)

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