Regarding the standards for fire-fighting water, can seawater after filtration be used as a substitute?
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As the title suggests: After all, fire fighting water is not used very frequently, and investments are also required for things like fire water tanks. My question is: 1. Can seawater, after simple filtration, be used as fire fighting water? (Why can seawater only be used as a backup source for fire fighting water?) ), which can save on investment in fire water tanks, but it may increase the cost of pipelines and pumps. 2. What are the criteria for fire water? 3. What are the requirements for the design of fire water tanks? I remember it’s 3 hours, 6 L/S... I can’t recall which standard specifies this. 4. Which standard is used for designing circular fire protection networks: 50016 or 50160? Thank you! Manager Discussion Group
Seawater is corrosive, and ordinary pipe materials are not suitable for use in such environments. All fire protection systems, including fire hoses, fire pumps, fire tanks, as well as other fire-fighting equipment, must be made from corrosion-resistant materials. Current fire water design standards are based on freshwater; even if seawater is used, these pipes and equipment still need to be custom-made, and the cost involved cannot be offset by saving a few thousand or tens of thousands of cubic meters of water.
The overall construction cost using seawater increases, and it’s not comparable to the cost of just one fire water tank.
I think as long as it’s water, anything will do; one just has to consider the issue of corrosion.
Fire-fighting water is not pumped to the site of an incident only when one occurs; rather, the water pressure is maintained 24/7, so the entire system remains filled with water. In the case of seawater, it’s likely that the equipment will corrode completely within a few years. Moreover, these systems are not unused – many people use fire hydrants to clean floors; it’s just that you might not be aware of this
Seawater is too corrosive; it doesn’t meet the requirements. You can’t possibly install a purification system after all. Moreover, fire-fighting water is generally used in very small amounts
No, fire safety regulations specify that the level of water chloride ions must be ≤25mg/kg
The biggest problem with seawater = chloride ions = corrosion. Additionally, fire suppression systems are usually activated only during drills, unless there is actually a fire... When seawater stays still inside the pipes, corrosion occurs
Seawater chloride ions are highly corrosive to stainless steel, so it’s not very reliable, is it?
The salt content in seawater is too high, resulting in strong corrosion; it’s not suitable. Additionally, the investment costs are too high, so it’s better to choose other options