上海泰和全地下污水处理厂消防系统设计探讨

Discussion on Fire Protection Systems Design for Shanghai Taihe Underground WWTP

上海泰和污水处理厂设计规模为40×10~4m^3/d,采用全地下一体化箱体布置形式,消防系统设计是项目的重点和难点。对地下箱体可燃物特征进行分析得出,地下箱体可燃物少,火灾危险性低,人员易于疏散。设计将地下箱体分为建筑物区和构筑物区,其中,建筑物区严格按照现行消防规范进行防火分区划分、安全疏散设计及消防给排水系统设计,并通过设置自动喷水灭火系统扩大分区面积。构筑物区不进行防火分区划分,其中,地下一层巡视操作层同建筑物区进行安全疏散设计和消防给排水设计,地下二层管廊区参照城市综合管廊进行消防设计。

The treatment capacity of Shanghai Taihe WWTP is 40 ×10^4 m^3/d. The whole under-ground integrated box layout was adopted, and the fire protection system design was the key and difficult point of the project. Through analysis of the combustible characteristics of the underground box, it can be concluded that there are few combustible substances, the fire risk is low, and people are easy to be evac- uated. The underground integrated box was divided into two areas, the building area and the structure ar- ea. The fire compartment, safe evacuation and fire supply and drainage systems in the building area are designed strictly according to the current fire protection regulations. And then, the area of the fire zone was expanded by setting automatic sprinkler system. Fire compartment is not conducted for the structure area. The safe evacuation and fire supply and drainage systems were designed for the subsurface patrol and operating floor like the building area. For the pipe gallery zone, fire protection systems were designed with reference to the urban utility tunnel.