1、当电蒸汽锅炉http://www.jnshengxin.cn/水位降到水位计最低水位线以下后，通过“叫水”法也未能见到水位时。
When the electric steam boiler water level drops below the minimum level gauge water level, through the "water called" law also failed to see the water level.
2、当加大电蒸汽锅炉补水量水位仍继续下降时，给水系统失灵，无法向锅炉补水时。
When increasing electric steam boiler water level continues to fall up, the water supply system failure, unable to supply water to the boiler.
3、电蒸汽锅炉水位计及安全阀失灵，无法保证锅炉安全运行时，当排污阀失灵又控制阀关闭不严时。
Electric steam boiler water level gauge and relief valve failure, can not guarantee the safe operation of the boiler, when the drain valve malfunction again when the control valve closed lax.
4、当电蒸汽锅炉http://www.jnshengxin.cn/内受压面或水冷壁管、烟管等出现鼓包或破裂时，炉墙、前拱出现塌倒时，在安全阀失灵情况下，压力表显示锅炉超压运行时。
When the inner surface electric steam boiler pressure or water wall tube, pipe and other tobacco bulge or rupture occurs, the furnace wall, before falling back arch appears when the safety valve in case of failure, the gauge displays the boiler overpressure runtime.
5、当电蒸汽锅炉超压时，应打开设在分汽缸上的紧急放空阀进行排放降压，炉内严重缺水时，切忌惊慌，以免操作失误。
When electric steam boiler overpressure, should open in the sub-cylinder emergency vent valve discharge pressure, the furnace severe water shortages, avoid panic, to avoid operational errors.
