Study On Influence Of Accurate Air Distribution On AGC In 600MW Thermal Power Plant Boiler

Traditional boiler combustion control strategy and manufacturers control the baffle can not be good in principle to meet the AGC Power Unit load regulation requirements. Through the boiler combustion in-depth research and analysis, according to AGC of thermal power unit load regulation requirements, the traditional boiler combustion control strategy flaws and shortcomings, issue put forward the boiler combustion control accurate air distribution strategy.This study on PanNan power plant for 600 MW unit of two different types of boiler combustion system and put forward a accurate air distribution based on the wind Combustion control strategy, mathematical models and solutions, and for the first time allocate in the PanNan four 600 MW power plant unit. After the AGC research the practical application in the PanNan four power plant boilers, prove Using accurate air distribution of the boiler combustion control strategies and programmes are rational, and effective and successful, in AGC trial period of technical indicators parameters is fine, smooth-control, combustion stability, efficient and timely response to load quickly, fully meet the requirements power network of AGC.From this we can be relatively clear of large utility boilers in the modern mode of control of AGC ideas:â‘ First of specific control process must be reasonable and in line with the actual situation of the mathematical model to the quality of balance and energy balance based on the accurate way to distribute air with the control strategy, the power plant boiler with the combustion process control by AGC recommend using this control method.â‘¡using of accurate air distribution to the combustion control strategy based on the actual situation of specific boiler, boiler according combustion characteristics requirements to establish the combustion control overall solution.â‘¢there must be complete and reliable one, the second Fengfeng measurement points. As the modern large-scale power plant boiler structure is compact, often without the corresponding layout burner angle of the wind or the second layer of secondary air, even if the layout is often because the measuring point of a very short straight, the flow field uneven, resulting in significant measurement error, Can not even use. For these circumstances necessary for the wind measurement devices to conduct further research to take appropriate solution, the best carry out the necessary transformation and upgrading technology. The study and analysis also shows that, accurate Air Distribution wind boiler combustion control strategy also suitable for other types of boiler combustion control, has broad application prospects and value to extend.