锅炉压火停炉要注意哪些问题
    2014-9-9 10:35:51  文章来源:http://www.jnlzsb.com
    压火停炉期间应适当排污,排除炉内的沉淀物;装有铸铁省煤气的锅炉,在锅炉停止给水后,应关闭省煤气烟道挡板,打开旁炉道挡板或使用在循环管道,停止省煤气内水温超过规定值。
    Pressure should be the proper drainage, fire during boiler stop out of sediment in the furnace; Equipped with cast iron province gas boiler, boiler stop water, after the province should be closed gas flue damper, open side baffle or use in circular pipe furnace, stop the province within the gas temperature exceeds the specified value. 
    压火停炉时间超过6h,应在压火一段时间后关闭锅炉主汽阀,开启过热器出口集箱的疏水阀,以冷却过热器。如关闭主汽阀后气压上升,可用向锅炉内上水并同时排污的方法降压。锅炉恢复运行时,需经过升压,并保护步骤。
    Pressure fire boiler stop for more than 6 h, shut off the boiler pressure fire after a period of time in the main steam valve, open drain valve of the superheater outlet header, to cool the superheater. Such as pressure rise after close the main steam valve, available to the boiler water and drainage method step-down at the same time. Recovery boiler running, need booster and protection steps. 
    压火停炉期间锅内仍有汽压,故仍须注意监视,并使锅炉保持最高允许水位。采暖期结束及检修等原意因,有计划地进行停炉,叫做正常停炉。正常停炉一般按如下顺序进行操作:停止供给燃料;停止鼓风,再停止引风;停止给水,降低压力,关闭给水阀;关闭蒸汽阀,打开疏水阀;关闭烟道挡板。
    Pressure during the furnace fire pot still has steam pressure, so still have to pay attention to the monitoring, and the maximum permissible to keep boiler water level. End of the heating period and maintenance original intention, carried out in a planned way boiler stop, called normal boiler stop. Normal boiler stop generally operate in the following order: stop supply of fuel. Stop blowing, then stop the arrow; Stop water supply, reduce stress, shut off the water supply valve; Close the steam valve and open the drain valve; Close the flue damper. 
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