Combined solar heat and BIGCC power generation system

Abstract

The invention provides a combined solar heat and BIGCC power generation system comprising a solar condensing thermal collector system, a biomass gasifier, a gas generator, a steam turbine, and a steam generator. The solar condensing thermal collector system is connected with a solar heat exchange system. The biomass gasifier is connected to the gas generator through a gas compressor, a combustion chamber and a gas turbine. The output of the gas turbine is also connected to a gas waste heat system. A low-pressure steam output of the gas waste heat system is connected to medium and low pressure cylinders of the steam turbine. High-pressure steam from a high-pressure steam output of the gas waste heat system and high-pressure steam generated by the solar heat exchange system are both connected to a steam mixing regulation system. The output of the steam mixing regulation system is connected to a high pressure cylinder of the steam turbine. Steams different in temperature are mixed by the steam mixing regulation system, the temperature of the mixed steam is regulated and controlled, the requirement of a sliding-parameter steam turbine for steam application is met, and a dual-cycle combined power generation mode of superposed solar heat and biomass energy, gas Brayton, and steam Rankine cycle is achieved.

Description

technical field [0001] The invention relates to a combined power generation system integrating solar thermal energy and BIGCC, which belongs to the utilization technology of solar thermal energy and biomass energy combined power generation in the field of renewable new energy, specifically refers to solar thermal energy and biomass gasification, The gas-steam combined cycle (BIGCC) is integrated into the new cogeneration system. Background technique [0002] Solar energy and biomass energy are widely distributed, inexhaustible, and inexhaustible renewable clean energy. Using them economically and efficiently is the most effective way to alleviate or even solve the energy crisis. [0003] The working principle of photothermal power generation is the same as that of conventional thermal power generation. The difference is that the form of heat source is different. Solar photothermal power generation uses a concentrating heat collection system to gather the sun's radiant energy...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a combined power generation system integrating solar thermal energy and BIGCC, utilizing the characteristics of BIGCC steam Rankine cycle slip parameter operation, integrating solar thermal energy into the steam Rankine cycle of BIGCC to form dual energy, The double-cycle combined energy cascade utilization power generation system effectively solves the problems of low temperature of trough-type photothermal steam, intermittent and unstable solar energy supply

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