Isothermal compression air energy storage power generation system based on liquid temperature control and method thereof
A technology of compressed air energy storage and liquid temperature, which is applied in hydroelectric power generation, liquid variable capacity machinery, engine components, etc., can solve the problems of fuel consumption, low efficiency, and low temperature control ability, and achieve friction reduction, high efficiency, and Thorough effect of energy release
Active Publication Date: 2017-01-11
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
However, traditional compressed air energy storage needs to cooperate with gas turbines, which consumes fuel and generates pollution
In recent years, there have been researches on applying liquid pistons to compressed air energy storage to solve the environmental pollution problem caused by compressed air energy storage, but the air scaling is mostly adiabatic and free expansion process, and the efficiency is
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[0049] The embodiments will be described in detail below in conjunction with the accompanying drawings.
[0050] figure 1 It is a system operation realization scheme based on a single internal temperature control liquid piston. The system consists of several pipelines 1-8, several valves 9, 10, 13, liquid driving devices 16-17, heat exchanger 18, temperature-controlling liquid source 19, low-pressure pool 20, hydroelectric power generation equipment 21, and internal temperature-controlling liquid piston 23 , a gas storage tank 26; wherein the internal temperature control liquid piston 23 is connected to the high-pressure gas pipeline 1 and the low-pressure gas pipeline 2 respectively, the high-pressure gas pipeline 1 is connected to the gas storage tank 26, and the temperature control liquid source 19 is connected to the internal temperature control liquid piston 23 Connected, the hydroelectric power generation equipment 21 is connected to the internal temperature control liq...
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The invention belongs to the technical field of compressed air energy storage, and in particular, relates to an isothermal compression air energy storage power generation system based on liquid temperature control and a method thereof. The system consists of an internal temperature control liquid piston, hydraulic power generation equipment, a gas storage tank, a low-pressure pool, a temperature control liquid source, an external temperature adjusting facility, a liquid driving device and a valve; in energy storage, the hydraulic power generation equipment converts electric energy to liquid potential energy, gas is compressed in the internal temperature control liquid piston, generated heat is stored by liquid, and high-pressure gas is fed in the gas storage tank; in power generation, high-pressure gas is expanded for acting in the internal temperature control liquid piston, and the heat is absorbed from the liquid to push the hydraulic power generation equipment to generate electricity; and the liquid in the temperature control liquid source replaces original liquid of the internal temperature control liquid piston to control the temperature of the gas in the liquid piston, so that the liquid temperature control of the temperature control liquid source is realized, and four working modes of an open direct supply operating mode, a closed direct supply operating mode, an afterheat utilization mode and an efficient power generation mode are realized.
Description
technical field [0001] The invention belongs to the technical field of compressed air energy storage, and in particular relates to an isothermal compressed air energy storage power generation system based on liquid temperature control and a method thereof. Background technique [0002] With the rapid development of modern electric power, energy storage technology has become an important part of the grid operation process. Among various energy storage technologies, the only feasible large-capacity energy storage technologies at this stage are pumped water storage and compressed air energy storage. Among them, the pumped storage energy storage technology has strict requirements on geographical conditions and serious damage to the environment, etc., the development and application of pumped storage are limited. Compressed air energy storage has no such problems and has great development prospects. However, traditional compressed air energy storage needs to cooperate with gas ...
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Login to view more IPC IPC(8): F03C1/013F03C1/02F03C1/26F03C1/40F03B13/00F04B41/02F03B13/06
CPCF03B13/00F03B13/06F03C1/003F03C1/013F03C1/02F03C1/26F04B41/02F05B2220/706Y02E10/20Y02E60/16
Inventor 姜彤张毓颖郑祥常
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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