Study on Diagnosis Model of Boiler Combustion Economization
CHEN Yu ,LIU Ji-zhen ,ZHANG Kuo(North China Electric Power University, Beijing 102206,China)
The evaluation methods on the boiler combustion economization are discussed. On the basis of boiler efficiency model, a change-condition check of thermal calculation is carried out. Using exhausted gas temperature, excess air level, unburned carbon in fly ash and in slag as assistant mark of economization, the diagnosis model of boiler combustion economization is constructed and a case study is given. The variation of boiler efficiency is obtained. The instruction to the operators is pointed out.