A flue gas reheating dish-type solar thermal and gas-steam combined cycle power generation system

Abstract

The invention belongs to the technical field of thermoelectricity, in particular to a smoke reheating disc type photo-thermal and gas steam combined circulation power generation system. The power generation system comprises a first gas compressor, a combustion chamber, a first turbine, a first waste heat boiler, a second gas compressor, a solar receiver, a second turbine and a second waste heat boiler which are sequentially connected through pipelines, wherein the first gas compressor, the first turbine and a first generator are coaxially arranged in series, the second gas compressor, the second turbine and a second generator are coaxially arranged in series, and the first waste heat boiler and the second waste heat boiler are correspondingly connected with a steam turbine, and the steam turbine and a third generator are coaxially arranged in series. According to the smoke reheating disc type photo-thermal and gas steam combined circulation power generation system, smoke discharged from the first turbine undergoes heat exchange through the first waste heat boiler, then is pressed to a certain pressure in the second gas compressor, is heated to the high temperature of being 900-1200DEG C by using a high-condensation-ratio condensation system, and enters the second turbine for doing work, the discharged smoke enters the second waste heat boiler for releasing heat and then is discharged, and steam generated by the two waste heat boilers drives the steam turbine to do work at the same time.

Description

technical field [0001] The invention belongs to the technical field of thermoelectricity, and in particular relates to a flue gas reheating dish-type photothermal and gas-steam combined cycle power generation system. Background technique [0002] At present, my country's primary energy structure is still dominated by coal-fired power generation, and a series of environmental protection issues caused by this have attracted more and more attention. The gas turbine power generation system has many advantages such as high efficiency, flexible operation, small footprint, and low environmental pollution. The gas-steam combined cycle has become an important way to alleviate environmental problems and provide efficient and clean energy. my country's fossil fuel resources are in the status quo of rich coal, poor oil and little gas. The supply of natural gas resources is a limiting factor for the development of gas turbines. Gas turbines are difficult to break through in terms of mat...

AI Technical Summary

Problems solved by technology

Gas turbines are difficult to break through in terms of materials, and the power generation efficiency and scale are limited. At the same time, the operation of gas turbines is greatly affected by the ambient temperature, which also limits the operation and output of gas-steam combined cycle power generation systems.

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