| 消防器材有哪些 |
| 添加时间：2019/8/30 9:51:18 浏览次数：6 |
| 消防器材有：二氧化碳灭火器、自动喷水灭火系统、消防广播系统、手动火灾报警按钮、消防栓。 Fire equipment includes: carbon dioxide fire extinguisher, automatic sprinkler fire extinguishing system, fire broadcasting system, manual fire alarm button, fire hydrant. 一、二氧化碳灭火器 I. Carbon dioxide fire extinguishers 二氧化碳灭火剂是一种具有一百多年历史的灭火剂，价格低廉，获取、制备容易，其主要依靠窒息作用和部分冷却作用灭火。二氧化碳具有较高的密度，约为空气的1.5倍。 Carbon dioxide fire extinguishing agent is a kind of fire extinguishing agent with a history of more than 100 years. It is cheap and easy to obtain and prepare. It mainly relies on asphyxiation and partial cooling to extinguish fire. Carbon dioxide has a high density, about 1.5 times that of air. 在常压下，液态的二氧化碳会立即汽化，一般1kg的液态二氧化碳可产生约0.5立方米的气体。因而，灭火时，二氧化碳气体可以排除空气而包围在燃烧物体的表面或分布于较密闭的空间中，降低可燃物周围或防护空间内的氧浓度，产生窒息作用而灭火。 At atmospheric pressure, liquid carbon dioxide will immediately vaporize, generally 1 kg of liquid carbon dioxide can produce about 0.5 cubic meters of gas. Therefore, when extinguishing a fire, carbon dioxide gas can exclude air and surround the surface of the burning object or distribute in a relatively closed space, which can reduce the oxygen concentration around the combustible or in the protective space and produce suffocation effect to extinguish the fire. |
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