电热水锅炉http://www.jnshengxin.cn/进水温度应保持在20-30℃左右,温度过低而使锅炉外壁凝有露水,与发生渗水等不严密情况会混淆不清,增加检查困难,温度太高能使水滴蒸发,使渗漏处不被发现。电热水锅炉水上满后,逐渐升高压力进行一次严密性检查,必要时紧一次法兰、人孔门和手孔盖的螺母。水压试验时,水压应缓慢上升,当水压上升到试验压力0.2MPa时,保持20分钟,若压力没有下降,降至工作压力0MPa进行检查。
Electric hot water boiler water temperature should be maintained at about 20-30 ℃, leaving the boiler temperature is too low outer condensate dew, and the occurrence of the situation will not tight water seepage confusion, increased inspection difficult, the temperature is too high to make the water droplets evaporate, so no leaks were found. After the electric water boiler water filled, gradually increasing the pressure to conduct a rigorous examination, a tight flange, Manhole and hand-hole cover nuts if necessary. When the pressure test, pressure should rise slowly, when the pressure rises to the test pressure 0.2MPa, keep 20 minutes, if the pressure does not drop down to the working pressure 0MPa be checked.
电热水锅炉http://www.jnshengxin.cn/水压试验符合下列情况,即认为合格: 在受压元件金属和焊缝上没有水珠和水雾;水压试验后,无可见的残余变形。
Electric hot water boiler pressure test meet the following conditions, namely that the eligibility: No water droplets and mist in the compression element metal and welds; after hydrostatic testing, no visible residual deformation.