关键词: D类干粉灭火系统, 烷基铝类火灾, 红外火焰探测器

Abstract: Aiming at the error spray of D-class dry powder fire extinguishing system and combining with the characteristics of alkyl aluminum fire and protection example of fixed dry powder fire extinguishing system in the alkyl aluminum catalyst preparation area of LLDPE plant, this paper elaborates on several aspects covering detection principles, system design, composition, peripheral hardware facilities, daily maintenance operation of D-class dry powder fire extinguishing system. Then it puts forward some measures for improvement and this promotes the anti-interference performance of D-class dry powder fire extinguishing system.

Key words: D-class dry powder fire extinguishing system, alkyl aluminum related fire, infrared flame detector