1　概论干粉灭火设备与干粉灭火剂在我国是同步发展起来的。六十年代中期,我国开始生产碳酸氢钠干粉灭火剂,并生产手提式干粉灭火器。七十年代初,随着工业的发展,尤其是石油化工工业的发展,干粉灭火剂的品种不断增加,产量也迅速上升。手提式干粉灭火器、推车式干粉灭火器、背负 1 Introduction Dry powder fire extinguishing equipment and dry powder fire extinguishing agent developed simultaneously in our country. In the mid-1960s, China started production of sodium bicarbonate powder fire extinguishing agent, and the production of portable dry powder fire extinguishers. In the early 1970s, with the development of industry, especially the development of the petrochemical industry, the varieties of dry chemical fire extinguishing agents continued to increase and their output also increased rapidly. Portable dry powder fire extinguishers, cart dry powder fire extinguishers, carrying