DG35-3.82/13型循环流化床防磨改进措施

DG35-3.82/13型鼓泡床锅炉改为循环流化床锅炉后,带来了磨损、炉膛负压不能维持等问题。本文针对磨损问题,利用磨损量与烟气流速间成3.6次方比例增长的机理,将流化床中心筒至锅炉尾部的烟道进行扩容,以增大烟气流通截面积来降低烟气流速,从而达到缓解烟气流经省煤器及烟道时对这些部位的磨损程度,同时还对烟道防磨材料进行改进,达到了降低磨损,提高流化床运行周期的目的。

Abrasionproof Improvement Measures of DG35-3.82/13 Type Circulating Fluidized Bed

DG35-3.82/13 type bubbling bed boiler instead of circulating fluidized bed boilers,bring wear and tear,the chamber negative pressure can not be maintained and so on.In this paper,in connection with issues of wear and tear,by using wear and the flue gas flow rate into 3.6-th power between the growth mechanism,the fluidized-bed center tube to the rear of the boiler flue carries out broadened,in order to increase the flue gas flow cross-sectional area,reduce the flue gas flow rate,achieve the mitigation and th...