The Scheme's Research Of Reforming Gasification Of Small Oil Gun Ignition Stable Combustion Control System In DINGZHOU POWER PLANT.

At present, with capacity of the units continues to improve, thermal power plants need to meet demands of power peaking. In the power plant, as an important parameter, the control effect of ignition and stable combustion oil will directly determine plant's safety and economy. The traditional ignition control system through DCS control to ignited fuel, and then further to ignite the pulverized coal carried by primary air which used the flame of the oil, combustion control method of this is poor economy,when the load changes or other disturbances occur, the control effect gets worse.Gasification of small oil gun ignition stable combustion control technology control the high-speed jet flow of compressed air to directly crushed the fuel, atomized into ultrafine droplets for combustion,at the same time, The heat generated by combustion to heat the initial fuel;In the preheating process,with the pyrolysis reaction and chemical reaction, the pulverized coal released of volatile;First, the very small amount of pulverized ignited by a small amount of oil,and then to achieve the expanded of step by step burning which pulverized coal is lighted,in a very short period of time to complete evaporation of droplet gasification and combustion gas fuel of the oil gun in the normal course of direct combustion, thus greatly improving the combustion efficiency and temperature of the flame.In this thesis, GUOHUA DINGZHOU POWER PLANT control system of the current ignition and gasification of small oil gun ignition stable combustion control technology conducted in-depth analysis of the application status. Electricity by gasification of the small oil gun ignition reliability, economy, reform of the feasibility study in depth of the aspects. Finally decided to take gasification of small oil gun ignition to achieve energy efficiency goals. DCS through the local control cabinet connect to form the reform program of gasification of small oil gun ignition remote control system, implement the gasification of small oil gun ignition stability control, to achieve unit cold and hot start and low load combustion stability control, in energy conservation and reduce pressure on production staff.