原理：干粉灭火器内充装的是干粉灭火剂。干粉灭火剂是用于灭火的干燥且易于流动的微细粉末，由具有灭火效能的无机盐和少量的添加剂经干燥、粉碎、混合而成微细固体粉末组成。利用压缩的二氧化碳吹出干粉（主要含有碳酸氢钠）来灭火。

Principle: Dry powder fire extinguisher is filled with dry powder fire extinguisher. Dry powder extinguishing agent is a kind of dry and flowable fine powder used for extinguishing fire. It consists of www.diandongmenc.com.cnwww.chongyajiann.cnwww.yanglaoyuanc.com.cn

www.diandongmenc.net.cnwww.chongyajiann.com.cnwww.xinzhouyanglao.cninorganic salts with extinguishing efficiency and a small amount of additives which are dried, crushed and mixed to form fine solid powder. Use compressed carbon dioxide to blow out dry powder (mainly containing sodium bicarbonate) to extinguish fire.

结构：干粉灭火器是利用二氧化碳气体或氮气气体作动力，将瓶内的干粉喷出灭火的。干粉是一种干燥的、易于流动的微细固体粉末，有能灭火的基料和防潮剂、流动促进剂、结块防止剂等添加剂组成。
Structure: Dry powder fire extinguisher uses carbon dioxide gas or nitrogen gas as power to extinguish the dry powder in the bottle. Dry powder is a kind of fine solid powder which is dry and easy to flow. It consists of fire-extinguishing base material and moisture-proof agent, flow accelerator, caking preventive agent and other additives.