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Method and device for hierarchical type solar energy and gas turbine combined cycle complementation

A technology of gas turbine and combined cycle, which is applied to gas turbine devices, mechanical power generated by solar energy, steam engine devices, etc., can solve the problems of high cost of heat storage equipment, unstable solar energy, low efficiency, etc. The effect of reducing fossil energy consumption and reducing costs

Active Publication Date: 2014-06-18
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0006] Due to the instability of solar energy, the pure trough solar power station has low efficiency and high cost of heat storage equipment

Method used

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  • Method and device for hierarchical type solar energy and gas turbine combined cycle complementation
  • Method and device for hierarchical type solar energy and gas turbine combined cycle complementation
  • Method and device for hierarchical type solar energy and gas turbine combined cycle complementation

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Embodiment Construction

[0038] The present invention provides a method and device for complementing the combined cycle of staged solar energy and gas turbines. In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] The method and device for this hierarchical solar energy and gas turbine combined cycle complementation provided by the present invention is to couple different types of solar collectors with each thermal process of the power subsystem according to their different heat collection grades, and use solar energy to directly steam The generation system (DSG) replaces the high-pressure evaporator of the waste heat boiler. At the same time, the heat pipe vacuum tube collector replaces the low-pressure evaporator of the waste heat boiler. The steam generated returns to the waste heat boiler, and finally realizes heat co...

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Abstract

The invention belongs to the technical field of solar energy and gas turbine combined power generation, and particularly relates to a method and device for hierarchical type solar energy and gas turbine combined cycle complementation. According to the method and device for the hierarchical type solar energy and gas turbine combined cycle complementation, a DSG solar thermal collector is used for replacing a high pressure evaporator of a waste heat boiler and for heating feed water, and generated high pressure saturated vapor returns to the waste heat boiler and is conveyed to a turbine high pressure cylinder to do work after being overheated. A heat pipe type evacuated tube thermal collector is used for replacing a low pressure evaporator of the waste heat boiler and for heating the feed water, and generated low pressure saturated vapor returns to the waste heat boiler and is conveyed to a turbine low pressure cylinder to do work after being overheated. The method and device for the hierarchical type solar energy and gas turbine combined cycle complementation improve low-grade solar heat work conversion, lower cost, reduce fossil energy consumption and corresponding CO2 emission, and achieve the complementation and combined hierarchical utilization of solar energy and fossil energy.

Description

technical field [0001] The invention belongs to the technical field of combined solar energy and gas turbine power generation, and in particular relates to a method and device for a combined cycle complementation of a graded solar energy and gas turbine. Background technique [0002] At present, the technologies related to the present invention mainly include medium and low temperature solar heat utilization technology, solar direct steam generation technology (DSG technology) and heat pipe vacuum tube technology. The development status and characteristics of their respective technologies are as follows: [0003] 1. Medium and low temperature solar thermal utilization technology: [0004] The energy utilization structure dominated by fossil fuels has played a key role in the survival and development of human beings, but it is also accompanied by thorny problems such as energy consumption and pollution. The proven fossil fuel resources such as oil, natural gas and coal in th...

Claims

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Application Information

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IPC IPC(8): F03G6/06F02C6/18F01K11/00F01K25/00
CPCY02E10/46
Inventor 李元媛杨勇平袁晶
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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