Renewable energy resource assistant coal hybrid power generation system

Abstract

The invention discloses a renewable energy resource assistant coal hybrid power generation system. The hybrid power generation system comprises a coal-fired boiler power generation system and a parallel-connection assistant system, wherein the coal-fired boiler power generation system comprises a generator, and a condenser, a condensation water pump, multi-level low pressure heaters, a deaerator, a feed pump, multi-level high pressure heaters, a coal-fired boiler and a steam turbine sequentially connected in series, wherein a steam inlet of the condenser is connected with the steam turbine to exhaust the steam; the multi-level low pressure heaters, the deaerator and the multi-level high pressure heaters are all connected with the steam turbine for steam extraction; the steam turbine drives the generator; and the parallel-connection assistant system consists of a biomass gasifying device and a paraboloid trough type solar heat collector field which are parallelly connected and then connected between an outlet of the feed pump and a steam extraction inlet of one of the multi-level high pressure heaters. The hybrid power generation system reduces coal consumption of the conventional coal-fired power plant, optimizes energy utilization structure, solves a problem of high pollution of the conventional coal-fired power generation system to a great degree and is favorable for ecological protection.

Description

technical field [0001] The invention relates to a novel hybrid power generation system that effectively utilizes 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 national GDP wil...

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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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