Sample of Manufacturer Response to Flooded Equipment

Boiler Manufacturer Response to Flooded Equipment

技术通报

日期:1999年9月28日
主题:淹没锅炉
由:Tom Senter, Weil McLain发行

Sample: This bulletin covers how to service a Weil-McLain cast iron boiler, 是部分还是全部, 由于洪水条件，在水下.

When a flooding condition has occurred with a boiler, you must follow one of these two (2) options:

1) Replace the boiler which has experienced flooding conditions with a new Weil-McLain boiler, OR

2) Thoroughly service the boiler which has experienced flooding conditions using the following guidelines:

Thoroughly service the boiler which has experienced flooding conditions using the following guidelines:

a) Replace all controls, 气体阀门, and electrical wiring on the boiler. 一旦电控制装置湿了, it poses a fire and electrical shock risk and must be replaced. Gas valves are no longer assured to provide a safe shut-off to the gas, 可能引致气体泄漏, 火灾, 和爆炸. Even mechanical devices such as float low water cut-offs and safety relief valves need to be replaces, 因为它们的部件可能会被腐蚀, 使设备不可靠的未来使用.

彻底检查所有燃烧器管, 天然气管道, 集合管, 孔, and flue ways for signs of rust and/or sediment from the flood waters. The rust and sediment can prevent proper operation of the boiler if it is not cleaned out from the boiler.

c) For oil-filled boilers, replace all oil burners. 油燃烧器, 包括Weil-McLain QB系列燃烧器, are complex systems consisting of solenoid valves, 汽车, 电极, 和水泵. If these components have experienced flooding, 石油泄漏, 阀故障, and electrical faults may occur resulting in a severe fire hazard, 潜在的伤害或死亡. 在大型商业燃烧器的情况下, 如戈登·皮亚特和权力之火, it is more cost efficient to replace the entire burner rather than attempting to replace all the controls and repair the mechanical components.

d) Replace all insulation that has become water damaged. 这包括护套绝缘, 基准箱绝缘, and combustion chamber insulation and refractories. After insulation has become water damaged due to flooding, 它可能恶化, reducing its insulation value and causing a potential fire hazard. Also, it can pose a health risk due to bacteria from the flood waters remaining in the insulation.

e) Where possible, inspect seal rings for damage from petroleum products. Flood waters are often contaminated with gasoline and other petroleum products, which damage elastomer seals used on most Weil-McLain boilers.

f) Thoroughly inspect all venting for signs of corrosion. Replace any venting that is rusting or corroded in order to prevent flue gasses from entering the building through the venting system.

注意: Even if only part of the boiler has been submerged in flood waters, 替换所有控件, 气体阀门, 和上面提到的其他组成部分. There is no easy way to know which components may be damaged; and even if a control was not submerged, water can get inside components because of splashing, 毛细作用的行动, 和/或空气中的湿气. Water and sediment easily enter controls, wiring, and insulation and other boiler components. Even if you can not see obvious signs of penetration, water and sediment may have entered a device and render it unsafe. Replacing the boiler is usually the quickest and most cost economical option when servicing a boiler that has experienced flooding. With so many areas of concern in attempting to repair a boiler that has experienced flooding conditions, replacing the boiler is generally the safest choice.