HP683型中速磨煤机出力提升改造实例
|
摘要
某厂135 MW发电机组配1台480 t/h超高压、非标况参数煤粉锅炉。燃用烟煤并掺烧0%～30%(按热值计算)煤气。配套4台HP683磨煤机,3运1备。近年来,由于煤种变差,导致现有磨煤机最大出力下降,需要4台磨煤机全部开启才能满足锅炉负荷需求,因此对现有HP683磨煤机进行了出力提升改造,保证了3台磨煤机运行即可满足锅炉满负荷要求。
A 135 MW power generator unit has a 480 t/h ultra-high pressure nonstandard parameter pulverized coal boiler, which burns bituminous coal with 0-30%(calculated by heat value) gas. There are four HP683 coal grinders, with three operating and one standby. In recent years,switching of coal types caused a drop in the power output of the coal grinders and all 4 grinders had to be running to meet the load demand of the boiler.Therefore, an upgrading modification of the exiting 4 coal grinders was carried out to ensure operation of 3 grinders of the 4 can meet the full load demand of the boiler.
A 135 MW power generator unit has a 480 t/h ultra-high pressure nonstandard parameter pulverized coal boiler, which burns bituminous coal with 0-30%(calculated by heat value) gas. There are four HP683 coal grinders, with three operating and one standby. In recent years,switching of coal types caused a drop in the power output of the coal grinders and all 4 grinders had to be running to meet the load demand of the boiler.Therefore, an upgrading modification of the exiting 4 coal grinders was carried out to ensure operation of 3 grinders of the 4 can meet the full load demand of the boiler.
引文
[1]池作和,周昊,岑可法.锅炉燃烧机理研究[J].热力发电,1999.(4):26~30.
[2]陈学军,陈听宽.锅炉原理[M].北京:机械工业出版社,1991年.
[3]林宗虎,张永照.锅炉手册[M].北京:机械工业出版社,1989年.
[4]王政民.锅炉制粉系统的合理运行[J].冶金能源,1999年.
[5]韩立人编著.磨煤机与制粉[M].北京:水利电力出版社,1988年.
[2]陈学军,陈听宽.锅炉原理[M].北京:机械工业出版社,1991年.
[3]林宗虎,张永照.锅炉手册[M].北京:机械工业出版社,1989年.
[4]王政民.锅炉制粉系统的合理运行[J].冶金能源,1999年.
[5]韩立人编著.磨煤机与制粉[M].北京:水利电力出版社,1988年.