摘要
京隆发电公司600 MW机组锅炉受热面温度测点取自炉顶大罩壳内,这种方法并不能很好反映炉内管壁实际温度变化趋势与炉内实际温度,尤其是易超温的管壁。针对此种情况,文章对锅炉运行中容易超温的受热面管壁加装了炉内壁温测点,并通过机组启动、正常运行、滑停过程以及停炉通风冷却过程中的炉内外壁温对比分析,证明炉内测点能够很好反映炉内管壁实际温度及其变化趋势,能够为正常运行提供有益的指导。
The temperature sensor of 600 MW boiler heating surface of Jinglong Power Plant was usually installed in the ceiling of the boiler,where the temperature sensor cannot truly feedback the actual temperature changing trend of the furnace wall or the actual temperature of the furnace. Thus,the heating surface is easy to get overheated. In view of the present situation,some temperature sensors are installed on the furnace heating surface,which used to be easily overheated in the normal operation. Through the comparison analysis of the internal and external wall temperatures of the furnace in the process of the unit start-up,normal operation,sliding parameter shutdown and the furnace ventilation cooling,it is found that those temperature sensors inside the boiler can reflect the actual temperature and its changing trend. Accordingly,it can provide useful guidance for the normal operation.
出处
《电力科学与工程》
2015年第11期59-65,共7页
Electric Power Science and Engineering
关键词
炉内壁温
炉外壁温
管壁
受热面
锅炉
the furnace wall temperature
outer furnace wall temperature
tube wall
heating surface
the boiler
