500MW机组塔式锅炉受热面污染状况实验与吹灰优化  

Test on Heating Surfaces and Soot-blowing Optimization of 500 MW Coal-Fired Tower Type

作　　者：胡佳琪[1] 李文林 郭振[1] 王星久[1] 吴小芳[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003 [2]山西神头第二发电厂技术试验中心,山西朔州036011

出　　处：《电力科学与工程》2010年第7期29-32,共4页Electric Power Science and Engineering

摘　　要：锅炉受热面积灰导致锅炉运行的经济性和安全性下降,在神头二电厂500 MW机组锅炉上,利用开发的基于锅炉运行热力参数的在线计算系统,对各个受热面污染状况进行了实时监测。根据实时数据分析,长杆吹灰器能有效地清除积灰,并使受热面的污染率下降。通过改变长杆吹灰器的吹灰频率,及时调整锅炉负荷,能够实现锅炉各主要受热面的优化吹灰,提高锅炉运行效率。Ash fouling on heating surfaces of boiler causes operational economy and safety of boilers to decrease.The fouling conditions of the convection heating surfaces were real time monitored during the tests by an on-line calculation system on a 500MW unit boiler of Shentou No.2 Power Plant.According to the on-line monitoring records,Long-rod Soot-Blower could clean the ash fouling effectively and low the contamination rate on the heating surfaces.Based on the method of changing Long-rod Soot-Blower soot blowing frequency and changing the boiler load,boiler efficiency can improved effectively.

关 键 词：电站锅炉 优化吹灰 积灰 在线监测 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]