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Carbon dioxide full gathering type supercritical carbon dioxide power generation system and method

A carbon dioxide, power generation system technology, applied in the direction of machine/engine, liquid variable capacity machinery, pump device, etc., can solve the problem of limited initial parameters of working medium, the efficiency of generator set cannot be improved, etc., to achieve high economy, improve Heat-to-work conversion efficiency and the effect of improving cycle efficiency

Pending Publication Date: 2019-01-11
HUANENG CLEAN ENERGY RES INST
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a supercritical carbon dioxide power generation system and method with full capture of carbon dioxide, which solves the existing defect that the efficiency of the generator set cannot be improved because the initial parameters of the working fluid are limited by the material

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  • Carbon dioxide full gathering type supercritical carbon dioxide power generation system and method

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, a supercritical carbon dioxide power generation system with full capture of carbon dioxide provided by the present invention includes an air separation device 1, a burner 2, a turbine 3, a regenerator 4, a first cooler 5, a water separator 6, The first carbon dioxide booster 7, the second cooler 8, the second carbon dioxide booster 9 and the carbon dioxide recovery unit 10, wherein the oxygen outlet of the air separation unit 1 is connected to the oxygen inlet of the burner 2, and the high temperature of the burner 2 The outlet of carbon dioxide is connected to the inlet of turbine 3, and the high-temperature carbon dioxide acts in turbine 3 to generate power; the exhaust outlet of turbine 3 is connected to the inlet of the hot end of regenerator 4, and the outlet of the hot end of regenerator 4 is connected to the first cool...

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Abstract

The invention provides a carbon dioxide full gathering type supercritical carbon dioxide power generation system and method. The system comprises an air separation device, a combustor, a turbine and agas circulation system, wherein air enters the air separation device for gas separation, oxygen separated from the air enters the combustor through an outlet of the air separation device and burns with natural gas in the combustor, and high-temperature supercritical carbon dioxide is generated and enters the turbine through an outlet of the combustor to do work for power generation; and gas exhausted from the turbine enters the combustor through a gas circulation system again. Through the structure, the efficiency of conversion of heat into power can be substantially improved, the equipment size is decreased, and the quite high economical efficiency is achieved.

Description

technical field [0001] The invention belongs to the technical field of supercritical carbon dioxide power generation, and in particular relates to a supercritical carbon dioxide power generation system and method for fully capturing carbon dioxide. Background technique [0002] Energy and the environment are two major problems facing the development of human society. Continuously improving the efficiency of generator sets is the eternal theme and goal of power industry research. Currently, the more commonly used power cycles include the Rankine cycle with water as the working fluid and the Brayton cycle with air as the working fluid. Conventional coal-fired power plants mainly use the Rankine cycle with water as the working medium. At present, the initial steam parameters of the largest one-million-kilowatt coal-fired power plant have reached 31MPa, 620°C; gas turbines mainly use the Brayton cycle with air as the working medium. The inlet gas temperature of the advanced aer...

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Application Information

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IPC IPC(8): F02C3/22F02C6/18F04B41/06
CPCF02C3/22F02C6/18F04B41/06
Inventor 彭烁周贤李启明钟迪王保民
Owner HUANENG CLEAN ENERGY RES INST
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