最近一些读者来信抱怨有些泡沫灭火器质量不好,询问灭火器内何以铁锈成堆,堵塞喷嘴。现答复如下。近几年来,液体类灭火剂发展很快,除蛋白型空气泡沫灭火剂和化学泡沫灭火剂外,空气泡沫灭火剂已有氟蛋白泡沫灭剂、水成膜即“轻水”泡沫灭火剂、凝胶型抗溶泡沫灭火剂、抗溶氟蛋白泡沫灭火剂等。这些灭火剂,除含有水、盐类之外,还有一定数量的活性剂 Some recent letters have complained about the poor quality of some foam fire extinguishers, asking why there are piles of rust inside the fire extinguishers that block the nozzles. The reply is as follows. In recent years, the rapid development of liquid fire extinguishing agent, in addition to protein air foam fire extinguishing agent and chemical foam fire extinguishing agent, air foam fire extinguishing agent has fluoride protein foam extinction agent, water film or “light water” foam fire Agent, gel-type anti-soluble foam fire extinguishing agent, anti-soluble fluoride protein foam fire extinguishing agent. These extinguishing agents, in addition to water, salt, there is a certain amount of active agent