Energy-saving system for gas-turbine power plants using natural gas to depressurize cooling capacity
An energy-saving system and natural gas technology, applied in turbine/propulsion fuel delivery system, charging system, engine cooling, etc., can solve the problem of not fully utilizing the heat and natural gas cooling capacity of rotating equipment, and achieve reasonable transfer and improve thermal efficiency. Effect
Active Publication Date: 2017-02-08
CEEC JIANGSU ELECTRIC POWER DESIGN INST CO LTD
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Problems solved by technology
[0004] Conventional gas turbine power plants are equipped with independent closed cooling water systems and natural gas heating systems, which fail to make full use of the heat of rotating equipment and the cooling capacity of natural gas
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[0019] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.
[0020] refer to figure 1 As shown, the gas turbine power plant of the present invention utilizes the energy-saving system for depressurizing the cooling capacity of natural gas, including a closed cooler, a closed cooler water supply pipeline, a closed cooler return water pipeline, and a natural gas pipeline. The outlet of the closed cooler is connected to the closed cooler water supply pipeline , the inlet of the closed cooler is connected to the closed cooler return water pipeline, and it is characterized in that it also includes: a heat exchanger arranged on the natural gas pipeline, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, and the first pipeline One end of the first pipe is connected to the outlet of the water bath furnace, the other end of the first pipe is connected to the inlet of the heat exchanger...
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The invention discloses an energy-saving system for using natural gas depressurization cold energy in a fuel gas power plant, aiming at improving the thermal efficiency of the fuel gas power plant by making full use of the conversion of cold energy produced by natural gas depressurization and heat produced by rotating equipment. The system comprises a closed cooler, a closed cooler water supply pipeline, a closed cooler water return pipeline and a natural gas pipeline, wherein an outlet of the closed cooler is connected with the closed cooler water supply pipeline, and an inlet of the closed cooler is connected with the closed cooler water return pipeline. The energy-saving system is characterized in that one end of a first pipeline is connected with an outlet of a water bath furnace, and the other end of the first pipeline is connected with an inlet of a heat exchanger; one end of a second pipeline is connected to the closed cooler water return pipeline, and the other end of the second pipeline is connected with the inlet of the heat exchanger; one end of the third pipeline is connected with an outlet of the heat exchanger, and the other end of the third pipeline is connected to the closed cooler water supply pipeline; one end of a fourth pipeline is connected with the outlet of the heat exchanger, and the other end of the fourth pipeline is connected with an inlet of the water bath furnace.
Description
technical field [0001] The invention relates to an energy-saving system for a gas-turbine power plant that utilizes the cooling capacity of natural gas decompression, in particular to an energy-saving system that utilizes the cooling capacity generated by decompression of natural gas in a gas-turbine power plant. The invention belongs to the field of heat exchange system design for a gas-turbine power plant. Background technique [0002] The natural gas is connected to the pre-module of the gas turbine from the external distribution station and needs to be decompressed, which will bring about a drop in temperature. At the same time, in order to meet the requirements of gas turbine operation and improve gas turbine efficiency, natural gas needs to be heated before entering the burner to increase the temperature. Generally, water bath furnace heating is used to provide heating heat from the outside. From another perspective, we can think of the concept of cooling capacity of n...
Claims
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IPC IPC(8): F02C7/224F02C7/12
Inventor 徐蕾吴斌王震泉牛涛甄宏宁徐佩锡刘捷乐晓蓉郭学英李桃韩志锟
Owner CEEC JIANGSU ELECTRIC POWER DESIGN INST CO LTD