Cogeneration system by firing coil assisted by biomass and solar energy

Abstract

The invention relates to a cogeneration system by firing coil assisted by biomass and solar energy, which comprises a coal-fired boiler generation system and a series assistance system, wherein the coal-fired boiler generation system comprises a generator and a condenser, a condensate pump, a multi-stage low-voltage heaters, a deaerator, a feed water pump, a multi-stage high-voltage heaters, a coal-fired boiler and a steam turbine orderly connected in series, wherein a steam inlet of the condenser is connected with exhaust steam of the steam turbine, and the multi-stage low-voltage heaters, the deaerator and the multi-stage high-voltage heaters are all connected with extracted steam of the steam turbine, and the steam turbine drives the generator; and the series assistance system comprises a biomass gasification device and a paraboloid channel type solar energy heat collector array, and the biomass gasification device and the paraboloid channel type solar energy heat collector array are connected in series and then connected between an outlet of the feed water pump and an extracted steam inlet of one of the multi-stage high-voltage heaters. The invention reduces the coal consumption, optimizes the energy utilization structures, solves the problem of high pollution of the traditional generation system by firing coal to a great extent and is beneficial to ecological protection.

Description

technical field [0001] The invention relates to a novel combined power generation system capable of effectively utilizing renewable energy to reduce coal consumption and realize low-carbon emissions, and belongs to the technical field of power generation. Background technique [0002] Thermal power generation occupies a considerable share in the existing power supply system. The fuel used in thermal power generation is mainly coal. This power generation method has high coal consumption, low energy utilization rate, and large emissions of harmful gases such as carbon dioxide. Moreover, the capacity of the random group continues to increase. The pollution caused by coal burning to the environment is becoming more and more serious. With the adjustment of the world's energy policy, the development of low-carbon economy and the strengthening of environmental protection have become the general trend. Taking China as an example, by 2020, the carbon dioxide emissions of the nationa...

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Problems solved by technology

[0002] Thermal power generation occupies a considerable share in the existing power supply system. The fuel used in thermal power generation is mainly coal. This power generation method has high coal consumption, low energy utilization rate, and large emissions of harmful gases such as carbon dioxide. Moreover, the capacity of the random group continues to increase. Environmental pollution caused by coal burning is becoming more and more serious

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