Compressed air composite energy storage system transformed from old thermal power plant boiler and operating method of compressed air composite energy storage system
A compressed air and composite energy storage technology, which is applied in the field of compressed air energy storage, can solve the problems of thermal power plants without suitable treatment methods, large consumption of non-renewable resources, idle equipment, etc., to save overall costs, reduce energy consumption, reduce pollution effect
Active Publication Date: 2022-01-28
XI AN JIAOTONG UNIV
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Problems solved by technology
Traditional compressed air energy storage technology uses fuel combustion to heat air, which consumes a lot of non-renewable resources and causes environmental pollution
At the same time, there is no suitable treatment method for the thermal power plants abandoned or shut down due to overcapacity, resulting in idle equipment and waste
Method used
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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0026] Such as figure 1As shown, the compressed air composite energy storage system transformed from old thermal power plant equipment includes a first air compression system and a second air compression system, a first molten salt heat exchanger, a second molten salt heat exchanger, and a heat storage tank 13, The compressed air outlet of the first air compression system is connected to the first molten salt heat exchanger, the compressed air outlet of the second air compression system is connected to the second molten salt heat exchanger, and the air outlet of the first molten salt heat exchanger is connected to the steam generator , the air outlet of the second molten salt heat exchanger is connected to the air turbine 14, steam generator 15, steam turbine 16, cold water pool 11 and deaerator 12 in sequence, the air turbine 14 is coaxially connected to the generat...
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The invention discloses a compressed air composite energy storage system for old thermal power plant boiler transformation and an operating method thereof, and the system comprises a first air compression system, a second air compression system, a first molten salt heat exchanger, a second molten salt heat exchanger and a heat storage tank, the first air compression system and the second air compression system compress air to store energy and exchange heat with cold water to store heat at the same time. The second molten salt heat exchanger is sequentially connected with a steam turbine power generation system. The first molten salt heat exchanger and the second molten salt heat exchanger communicate with a molten salt storage tank, and the molten salt storage tank is heated through a solar heat collection system. A deaerator is formed by transforming a deaerator of an old thermal power plant; a steam generator is formed by transforming a steam drum of a thermal power plant boiler; a steam turbine is formed by transforming an old thermal power plant steam turbine; and pipelines and equipment of an old thermal power plant are reused, excessive capacity is reduced, the construction cost of a compressed air energy storage system is reduced, equipment waste caused by shutdown of the thermal power plant is avoided, fuel is not used, pollution is reduced, and water consumption is reduced.
Description
technical field [0001] The invention belongs to the field of compressed air energy storage, and in particular relates to a compressed air composite energy storage system and an operation method for reforming old thermal power plant boilers. Background technique [0002] In recent years, in order to promote the realization of the "double carbon" goal and implement the elimination of backward production capacity of coal power, various localities have actively and steadily promoted the optimization and upgrading of coal power, and done a good job in shutting down coal-fired units and supporting boilers. At the same time, the total installed capacity of renewable energy power generation is increasing year by year, and its proportion in the total power generation is also getting higher and higher. However, the instability of renewable energy will reduce the stability and security of the power grid. As a reliable energy storage technology, compressed air energy storage plays an im...
Claims
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IPC IPC(8): F04B41/02F04B41/06F04B39/06F01K3/14F01K3/12F01K7/22F01D15/10F22B1/18F22B33/18F24S60/30F28D20/00
CPCF04B41/02F04B41/06F04B39/06F01K3/14F01K3/12F01K7/22F01D15/10F22B1/18F22B33/18F24S60/30F28D20/0034F28D2020/0047Y02E10/40Y02E60/14Y02E60/16Y02E70/30
Inventor 王焕然黄一洲令兰宁陶瑞贺新葛刚强李瑞雄
Owner XI AN JIAOTONG UNIV