Coal burning biomass steam and water coupling power generation system and process

Abstract

The invention provides a coal burning biomass steam and water coupling power generation system and process. On the basis of an existing coal burning power plant, a biomass boiler and a supporting device and heat power system are added. Superheated steam generated when the biomass boiler is used for combusting biomass is fed into a medium pressure cylinder of a steam turbine of the coal burning power plant, and an existing steam turbine power generating unit of the coal burning power plant is used for generating power. According to the coal burning biomass steam and water coupling power generation system and process, mainly a biomass direct combustion technology is adopted, the maximum scale of a single machine is 30 MW, and about 25 tons of biomass can be consumed each year; available fuelof the biomass direct combustion technology is nearly all forestry and agricultural waste, and a contribution can be better made for the local government to solve biomass disposal. The coal burning biomass steam and water coupling power generation technology can fully play the beneficial effects of the efficient power generating unit of the coal burning power plant, meanwhile, the unit load rateof the coal burning power plant is increased, and better adaption to the low trough running manner required by power grid dispatching is achieved.

Description

technical field [0001] The invention relates to a coal-fired biomass steam-water coupled power generation system and process, in particular to a coal-fired power plant coupled thermal steam generated power generation process. Background technique [0002] Biomass energy, as a renewable energy source, has a wide range of sources, abundant reserves, renewable and storable. The principle of biomass power generation is similar to that of thermal power. The power is stable and high-quality, and it is more friendly to the power grid. Compared with the same stable hydropower, the annual power generation hours of biomass power generation are 7000-8000 hours. The development of biomass power generation is one of the effective ways to replace traditional energy with renewable energy. It is of great significance for replacing fossil energy, increasing energy supply, adjusting energy structure, building a stable, economical, clean and safe energy supply system, and ensuring energy secur...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of biomass treatment and disposal, the present invention provides a novel process method coupled with coal-fired power plants for power generation, which is suitable for biomass treatment and disposal

Images