水喷雾灭火系统在液化石油气球罐消防设计中的应用

The Application of the water Spray Fire-extinguishing System in the Fire Fighting Design for LPG Spherical Tanks

水喷雾灭火系统是在自动喷水灭火系统的基础上发展起来的，使用专用的水雾喷头将水喷射成微小雾滴进行灭火或防护冷却的一种固定式灭火系统。文章介绍水喷雾灭火系统的灭火机理及系统组成；水喷雾防护冷却水量的确定原则；喷头的选择与布置方式；雨淋阀组的技术要求以及系统操作与控制方式，并以某 ４ × １０００ ｍ３球罐区工程为例进行了实际计算。

The water spray fire-extinguishing system is developed on thebasis of the automatic water sprinkling fire-extinguishing system,which uses special water sprayers to disperse water into small drop forfire-extinguishing or protection cooling, and is a type of fixed fire-extinguishing system. Introduced the mechanism and configuration ofthe water spray fire-extinguishing system, the principle ofdetermination of water volume for protection cooling, the selection andarrangement of the sprayers, the technical requirement of the sprayvalve manifold and operation, control pattern of the system. Given anpractical calculation example for a tank-farm with 4 × l000 m3spherical tanks.