艇用氧烛着火时灭火方式的选择

Choice of fire-fighting means when the oxygen-generating candle catch fire in submarines

作为潜艇中的供氧设备,氧烛一经启动,无法自动停止放氧。选择适合氧烛着火时使用的灭火介质和灭火器材,是安全、正确使用氧烛必须解决的问题。本文通过分析艇上常用的各种灭火器的灭火原理,确定了清水是艇用氧烛的安全灭火介质,清水灭火器是其安全的灭火器材。通过氧烛验证试验证明,压力为0.4～0.5MPa的高压清水和合适容量的清水灭火器能安全地终止氧烛放氧。

As one of the oxygen-supplying equipments in submarines,the oxygen-generating candle can＇t stop giving out the oxygen itself once it is started. To use the oxygen-generating candle correctly and safely,the question must be solved that choose proper fire-fighting equipment and extinguish materials when it catch fire. By analyzing the fire-fighting principle of the conventional fire extinguishers in the submarines,it was concluded that water was the proper extinguishing media and the water extinguisher was the proper extinguisher for the oxygen-generating candle. The experiments on the oxygen-generating candles have proved that the water with the pression of 0.4～0.5 MPa and the water extinguisher with proper capacity could stop their giving out oxygen safely.