| This paper's object of study is 450t/h CFB boiler,a mathematical model is developed to study the dynamic behavior of the combustion system, and the factors affecting the dynamic behavior has been discussed, the mathematical simulation model is based on one power plant ,through simulation ,this paper works out follow responses: Material bed temperature responses, main steam pressure responses, flue—gas oxygen concentration responses drop to step changes in fuel feed rate, to step changes in primary air feed rate, to step changes in secondary air feed and to step changes in combustion rate. This model is helpful to master the running character of large CFB and provides effectively theoretical guide for designing and operating the large CFB.
|
PDF Full Text Request