How to prevent freezing of fire steam and fire water in winter
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How should freezing of fire steam and fire water be prevented in winter? Our unit cuts off the supply, but I feel that’s not a sufficient solution; I’m not sure what others do
The main measures to prevent freezing of fire protection steam are insulation, along with the installation of normally open drain valves at each low point; in particular, a low-flow steam circulation should be provided in the liquid accumulation zones to ensure fluid movement. Fire protection water is typically supplied through a combination of underground and above-ground piping. A deluge valve room is usually installed, equipped with automatic valves that open in response to fire alarms from the associated equipment, thereby triggering water spraying. The above-ground portion generally remains dry under normal conditions, with water being supplied only when needed; it is important to drain the water promptly after use to prevent freezing.
The main measures to prevent freezing of fire protection steam are insulation, along with the installation of normally open drain valves at each low point; in particular, a low-flow steam circulation should be provided in the liquid accumulation zones to ensure fluid movement. Fire protection water is typically supplied through a combination of underground and above-ground piping. A deluge valve room is usually installed, equipped with automatic valves that open in response to fire alarms from the associated equipment, thereby triggering water spraying. The above-ground portion generally remains dry under normal conditions, with water being supplied only when needed; it is important to drain the water promptly after use to prevent freezing.
You can take a look at the pinned post in this version; there’s an option to request free connections, or you can search on Baidu for “Daxueshi””
The South doesn’t need to worry about this issue: lol
This problem is indeed more pronounced in the northern regions; no matter how good the insulation is, temperatures dropping below minus ten degrees still cause freezing. There are already good practices that can be followed in this regard. If those measures don’t work, then either steam or fire-fighting water can be used to ensure a continuous flow of water or steam. Alternatively, the systems can be switched on and off at regular intervals during inspections – this issue can be avoided through proper design from the outset. Another option is to make improvements to prevent freezing in winter or to avoid any accidental injuries.
Well, it can only be said that the design is flawed: if the temperature is so low, why not use a pre-action system?
Close the fire steam electric valve and put the low-point drain valve into normal operation.
Close the fire steam electric valve and put the low-point drain valve into normal operation.