华夏棋牌

干粉灭火器怎么用才会恰到好处-阜城县世安消防器材制造有限公司

干粉灭火器怎么用才会恰到好处

2019-08-23 09:15:18

WENZHANGZHAIYAO:

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从古至今,灭火器箱的用途离不开灭火二字,灭火目标从未改变,改变的只是不断发展的科技。在古时候,灭火器很简单,无非是钩、斧、锹、桶之类。真正的专用灭火器仅是一两个装一升多水并充有压缩空气的圆桶。等到了19世纪中叶,有了手提式化学灭火器,这种灭火器将碳酸氢钠和水混合放在筒内,另用一玻璃瓶盛着硫酸装在桶口内。使用时,由撞针击破瓶子中,使化学物质混合,产生二氧化碳,把水压出桶外。等到1909年,纽约的戴维森取得一项专利,利用二氧化碳从灭火器内压出四氯化碳,这种液体会立即变成不可燃的较重气体以闷熄火焰。此后又出现了干粉灭火器,液态二氧化碳灭火器等多种小型式灭火器。

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