管路长度对BC超细干粉灭火剂管内流动阻力影响的试验研究

BC超细干粉灭火剂是指能扑灭B类、C类火灾的超细干粉灭火剂,因其洁净、环保、安全无毒、性能稳定,被认为是适用于民用飞机替代哈龙灭火剂的理想环保灭火剂。本文通过试验分析的方法研究了管路长度对BC超细干粉灭火剂管内流动阻力的影响,得出了BC超细干粉灭火剂在管路中流动的压力损失与管路长度之间的关系,并通过试验数据拟合出经验公式,用于指导工程设计,为民用飞机灭火系统的设计提供了技术支持。

Experimental Study on Influence of Pipe Length on Flow Resistance of BC Superfine Dry Powder Extinguishing Agent

BC superfine powder extinguishing agent is used to put out class B and class C fire.As the performance of the agent is clean,environmental protection,non-toxic and stable,it can replace the halon extinguishing agent.In this paper,it is found that the pipe length has effect on the flow resistance of BC superfine dry powder extinguishing agent.With fitting the experiment data,the relationship between the pipe length and the pressure loss is obtained,and it is useful for the design of civil aircraft fire extinguishing system.