Combined power generation system for gradient utilization of wind energy, fuel gas and supercritical carbon dioxide energy

A technology of carbon dioxide and combined power generation, which is applied in the direction of wind power engine, joint combustion mitigation, wind power motor combination, etc., can solve the problems of aggravating environmental damage and wasting energy, and achieve the effects of protecting the environment, avoiding waste of resources, and improving economic efficiency

Inactive Publication Date: 2016-08-10
XI AN JIAOTONG UNIV
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  • Application Information

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Problems solved by technology

In the existing industrial production mode, a large amount of low-grade heat energy with a temperature below 350°C is d

Method used

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  • Combined power generation system for gradient utilization of wind energy, fuel gas and supercritical carbon dioxide energy

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] see figure 1 , the present invention is a cascade utilization combined power generation system of wind energy, gas and supercritical carbon dioxide energy, including a wind energy collection system, a gas turbine power generation system, a medium and low temperature waste heat utilization system and a supercritical carbon dioxide recompression Brayton cycle power generation system.

[0032] Wherein, the wind energy collection system includes a wind turbine 1 and a variable speed transmission device 2, the wind turbine 1 is connected to the variable speed transmission device 2, and the wind energy is used to drive the wind turbine 1 to generate kinetic energy, and the speed is controlled by the variable speed transmission device, so that the stable kinetic energy Delivered to the first compressor 3 as a power source;

[0033] The gas turbine power gene...

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Abstract

The invention discloses a combined power generation system for gradient utilization of wind energy, fuel gas and supercritical carbon dioxide energy, and the combined power generation system is used for wind energy utilization and application of the supercritical carbon dioxide recompression Bretton power cycle. The system comprises a wind energy collecting system, a fuel gas turbine power generation system, an intermediate-low-temperature waste heat utilization system and a supercritical carbon dioxide recompression Bretton power cycle power generation system. During system work, wind energy is utilized for driving an air compression device, the compressed air is used for the fuel gas turbine system, waste gas and intermediate-low-temperature waste heat exhausted by a fuel gas turbine are recycled to serve as a heat source of a heat exchanger, and gradient utilization of energy is achieved. Carbon dioxide serves as a working medium of the supercritical carbon dioxide recompression Bretton cycle, the power mechanical structure of the supercritical carbon dioxide recompression Bretton cycle is compact, and economic performance is good. The stable combined power generation is achieved through the fuel gas turbine power generation system and the supercritical carbon dioxide recompression Bretton cycle system, and generated power energy is finally input into a power grid.

Description

Technical field: [0001] The invention relates to a cascade utilization combined power generation system of wind energy, gas and supercritical carbon dioxide energy, which is used for the utilization of wind energy energy, medium and low temperature waste heat energy and the application of supercritical carbon dioxide recompression Brayton power cycle. Background technique: [0002] Due to the rapid development of industry and manufacturing in recent years, the increasing demand for fossil fuels has caused a global energy shortage, and the exhaust gas emissions after combustion have caused environmental pollution, such as the greenhouse effect, acid rain, and air pollution. Developing new energy utilization methods, using clean energy, and fully recovering energy from industrial low-temperature waste heat are currently feasible methods that can alleviate the energy crisis and reduce pollutant emissions to a certain extent. [0003] Wind energy is a clean and renewable energy,...

Claims

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Application Information

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IPC IPC(8): F01K23/10F03D9/28F02C6/00F02C6/18F02C3/00F01K27/00F01K25/10
CPCF01K23/10F01K25/103F01K27/00F02C3/00F02C6/00F02C6/18Y02E20/14
Inventor 谢永慧王宇璐张荻
Owner XI AN JIAOTONG UNIV
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