产气式快速密闭气囊研究

Study on gas-producing type rapid seal gasbag

采用产气方式研制的产气式快速密闭气囊,由触发器、产气器和气囊组成,在面积7.2m2半圆拱型巷道进行的实验表明,能耐温250℃,承受1500Pa通风压力,漏风率小于5%,安设时间小于1min.产气式快速密闭气囊用于煤矿井下火灾区域的快速密闭,能有效隔绝火区空气,防止有毒气体及火区高温对永久密闭作业人员的伤害。具有耐高温、漏风率小、操作方便、安设时间短等特点。

The gas-producing rapid seal gasbag developed by gas-producing mode is composed of trigger, gas-producing implement and gasbag. The experiment in 7.2 m^2 arch laneway indicates that it can stand 250℃ temperature and 1 500 Pa wind pressure, while the air leak rate is less than 5%, and the install time is less than 1 minute. Be used as rapid seal in the fire section under coal mines, it can quickly form the seal to the fire section in a short time and isolate the air of fire section and effectively prevent the workers in the permanent sealed zone from the damage of toxic gases and high temperature. It has the advantages as follow： high temperature resistance, low air leakage, convenient operation and installation and so on.