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Gas-steam combined cycle power generation system

A combined cycle power generation and steam technology, which is applied in the direction of steam generation method using heat carrier, steam engine device, combined combustion mitigation, etc.

Active Publication Date: 2015-03-11
CHINA CAMC ENG
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Problems solved by technology

[0007] This application provides a gas-steam combined cycle power generation system to solve the problem of supporting the use of rotating mechanical equipment and electrical equipment with a 60Hz gas turbine

Method used

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  • Gas-steam combined cycle power generation system
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  • Gas-steam combined cycle power generation system

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Embodiment Construction

[0028] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] This application redesigns the waste heat boiler system, steam turbine generator system, main transformer and other electrical systems to form a complete 60Hz combined cycle power generation system matched with SGT6-5000F gas turbine.

[0030] Since the flue gas parameters at the outlet of the SGT6-5000F gas turbine are different from those of the 50Hz gas turbines of the same scale, it is necessary to design the waste heat boiler for the new flue gas parameters.

[0031] For 50Hz steam turbines and generators, they usually work at 3000rpm. Under the grid frequency of 60Hz, it is necessary to newly design the steam turbine and generator with a speed of 3600rpm, and to match the parameters of the s...

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Abstract

The invention provides a gas-steam combined cycle power generation system and aims at combined cycle power generation of a SGT6-500 gas turbine to conduct mating redesign on a main engine and an auxiliary engine such as a waste heat furnace and a turbonator. A gas-steam combined cycle which is composed of a new integrated system not only solves the mating problem with the SGT6-500 gas turbine, but also solves the problem that a power generation system works under 60 Hz power system frequency.

Description

technical field [0001] This application relates to thermal power generation technology, in particular to a gas-steam combined cycle power generation system. Background technique [0002] The gas-steam combined cycle power generation system is to introduce the exhaust gas of the gas turbine into the waste heat boiler, and the high-temperature and high-pressure steam generated drives the steam turbine, which drives the steam turbine generator to generate electricity. Its common forms include a single-shaft combined cycle in which a gas turbine and a steam turbine coaxially drive a generator, and a multi-shaft combined cycle in which a gas turbine and a steam turbine are respectively combined with a generator. [0003] Among them, the working process of the gas turbine is that the compressor continuously inhales air from the atmosphere and compresses it; the compressed air enters the combustion chamber, mixes with the injected fuel and burns to become high-temperature gas, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K23/02F01D15/10F01D5/12F01D25/20F01D25/36F22B1/18H02K1/20H02K1/16
CPCY02E20/16
Inventor 洪浩凌麟饶甦严宏波郝宝良赵焱
Owner CHINA CAMC ENG
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