浅谈氮气灭火系统的应用

随着哈龙替代气体研究的不断深入 ,氮气作为惰性气体灭火的一种 ,引起了人们的广泛关注。然而 ,在矿井火灾防治中 ,氮气因其来源广泛、价格低廉 ,很早就得到广泛的应用。笔者对氮气灭火系统的特性、优缺点及其适用范围进行了分析 ,将氮气与其他哈龙替代气体灭火系统进行了比较 ,探讨了引起矿井与建筑火灾扑救差异的原因。针对目前固定式氮气灭火系统应用系统压力较高的特点 ,提出使用长距离输送和制氮机供氮的方法 ,来降低因高压力所带来的成本问题。提出使用氮气灭火系统 ,建立地铁、隧道及地下公共设施等地下建筑物大型火灾的灭火技术

Preliminary Discussion on Application of Nitrogen Extinguishing System

With research in depth of halon alternative, nitrogen as one of inert gases, its fire extinguishing system is being more and more concerned about. On the other hand, it has been widely used in extinguishing the fire in coalmine for its cheapness and broad sources. The characteristics of nitrogen extinguishing system, its advantages and disadvantages, and its applicability are analyzed and compared with other halon alternative systems. The different performances occurred during extinguishing the fire in coalmine and in building are also expounded. Methods to overcome the shortage of high pressure in fixed nitrogen extinguishing system are put forward. At the same time, a mobile nitrogen fire extinguishing system for underground constructions such as subway and tunnel is also proposed.