矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2013年
5期
1-4
,共4页
孙豫敏%林柏泉%朱传杰%刘谦%洪溢都
孫豫敏%林柏泉%硃傳傑%劉謙%洪溢都
손예민%림백천%주전걸%류겸%홍일도
瓦斯爆炸%冲击波%超压峰值
瓦斯爆炸%遲擊波%超壓峰值
와사폭작%충격파%초압봉치
gas explosion%shock wave%overpressure peak
为了分析研究瓦斯爆炸波在巷道内传播过程中的演化特征,运用AutoReaGas软件模拟了爆炸波沿开口平直巷道的传播演变规律。研究结果表明:爆炸波从波形上看大致分为前驱冲击波、热压缩波及稀疏波;在爆炸初期爆炸波以接近声速的速度稳定传播;爆炸超压峰值整体呈现出先减小后增大的趋势。根据分析结果,在超压较大的区域应加强相应的预防措施,以减少瓦斯爆炸带来的损失。
為瞭分析研究瓦斯爆炸波在巷道內傳播過程中的縯化特徵,運用AutoReaGas軟件模擬瞭爆炸波沿開口平直巷道的傳播縯變規律。研究結果錶明:爆炸波從波形上看大緻分為前驅遲擊波、熱壓縮波及稀疏波;在爆炸初期爆炸波以接近聲速的速度穩定傳播;爆炸超壓峰值整體呈現齣先減小後增大的趨勢。根據分析結果,在超壓較大的區域應加彊相應的預防措施,以減少瓦斯爆炸帶來的損失。
위료분석연구와사폭작파재항도내전파과정중적연화특정,운용AutoReaGas연건모의료폭작파연개구평직항도적전파연변규률。연구결과표명:폭작파종파형상간대치분위전구충격파、열압축파급희소파;재폭작초기폭작파이접근성속적속도은정전파;폭작초압봉치정체정현출선감소후증대적추세。근거분석결과,재초압교대적구역응가강상응적예방조시,이감소와사폭작대래적손실。
In this paper,analysis was made on the evolution characteristics of gas explosion wave in its propagation process in the roadway and simulation was carried out with AutoReaGas software on the evolution law of the explosion wave when it propagated along an open straight roadway. The research results showed that the explosion wave can be roughly divided into the forerunner shock wave,thermally compressive wave and sparse wave in view from the waveform;in the early stage of explosion,the explosion wave steadily propagated at a speed close to the sound speed;and the overpressure peak of explosion tended to decrease first and then increase. The analysis results indicated that some relevant preventive measures should be taken in the region with larger overpressure so as to reduce the losses caused by gas explosion.