Different from national standard, the local standard of fire-fighting design of Iiaoning province requires that the volume of fire-fighting water tank and the storage of foam liquid should be at least twice the amount of the designed consumption, and the oil reserve of diesel engine should ensure a 8-hour continuous operation of the unit, which cause the increase of accident water amount during fire extinguishing. In view of the above situation, empty fire-fighting water tank was used to store accident water temporarily, which could not only prevent environment pollution from polluted rainwater, but also save land and investment.%辽宁省的地方规定与国家规范要求不同,要求消防水罐的储水容积、泡沫液储量应达到2倍以上设计用量,柴油机油料储备量应满足机组连续工作8h的要求,这就导致了消防事故水收集量增大.利用使用过的空置消防水罐暂时存放事故水,可以防止污染雨水对水体造成污染,既节约用地,又节省投资.
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