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A power generation system coupled with carbon capture and supercritical CO2 Brayton cycle

A Brayton cycle and power generation system technology, which is applied to engine components, engine starting, machine/engine, etc., can solve problems such as unfavorable and unfavorable power station waste heat recovery and utilization, and achieve the effect of improving utilization rate and efficient recovery

Inactive Publication Date: 2018-07-10
HEBEI UNIV OF ENG
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  • Abstract
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  • Claims
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Problems solved by technology

[0008] To sum up, the existing methods of using low-temperature heat sources for power generation are not ideal, which is not conducive to the recovery and utilization of waste heat in power stations, and further research is needed

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  • A power generation system coupled with carbon capture and supercritical CO2 Brayton cycle
  • A power generation system coupled with carbon capture and supercritical CO2 Brayton cycle

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] The purpose of the present invention is to make full use of the flue gas heat energy between the induced draft fan of the power plant boiler and the desulfurization equipment, and the CO regenerated by the carbon capture equipment. 2 heat energy. The system combines power plants with carbon capture systems with supercritical CO 2 Power generation technologies are coupled for electricity production. Systems include carbon capture systems and supercritical CO 2 Brayton cycle power generation system, in which supercritical CO 2 The Brayton cycle power generation system includes a turbo generator 6, a starter motor 15, an exhaust main pipe 13, a main steam valve 26, an inlet steam main pipe 14, a start-stop bypass system and a steam inlet main pipe and an exhaust main pipe connected in parallel. Multiple working subsystems between the pipes, the start-stop bypass sys...

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Abstract

The invention discloses a carbon capturing and supercritical CO2 Braytom cycle coupled power generation system, belongs to the technical field of power generation, and aims to realize full utilization of fossil fuel energy. The carbon capturing and supercritical CO2 Braytom cycle coupled power generation system comprises a carbon capturing system and a supercritical CO2 Braytom cycle power generation system; the carbon capturing system includes a regeneration separator, a main compressor and a sealing device; a working medium inlet of the supercritical CO2 Braytom cycle power generation system is connected with a steam exhaust port of the regeneration separator, and a working medium outlet of the supercritical CO2 Braytom cycle power generation system is connected with a steam inlet of the main compressor; and a steam exhaust port of the main compressor is connected with the sealing device. The supercritical CO2 Braytom cycle power generation system is organically combined with the carbon capturing system, and smoke of a coal-fired power plant boiler and CO2 from the regeneration separator of the carbon capturing system serve as afterheat resources for low-temperature power generation, so that the safe and efficient recovery of power plant afterheat is realized, the utilization rate of the fossil fuel energy is improved, and the purposes of energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to a device for generating electricity by utilizing the waste heat of a power station, specifically a carbon capture and supercritical CO 2 The invention relates to a Brayton cycle coupled power generation system, which belongs to the technical field of power generation. Background technique [0002] The topic of new energy has been studied for more than half a century, but people still haven't found an energy that can completely replace fossil fuels, so realizing the full utilization of fossil fuel energy still has great research value. [0003] According to different temperature levels, waste heat resources can be divided into three types: high temperature waste heat (above 500°C), medium temperature waste heat (between 200-500°C) and low temperature waste heat (below 200°C). Compared with high-grade energy such as coal, oil, and natural gas, it is difficult to utilize low-grade waste heat below 200 °C. However, due to the lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K25/10F01K27/00F01D19/00
CPCF01D19/00F01K25/103F01K27/00
Inventor 王继选魏占海刘小贞于佐东杨艳慈张相洲
Owner HEBEI UNIV OF ENG