瓦斯爆炸

The sensor connecting the LED and annunciator,so it can detect the atmosphere of the coal mine a...

传感器利用数码管进行显示，并连接危险报警器，能够及时准确地监测矿井的气氛环境并对瓦斯爆炸等潜在危险进行预警，以保证矿井的安全。

In accordance with the relevant provisions of the Administrative Supervision Law of the People's Republic of China, the Work Safety Law of the People's Republic of China and the Regulations on the Reporting, investigation and Handling of the Accidents Disrupting Production Safety, the Ministry of Supervision has, by earnestly fulfilling its administrative supervision functions and responsibilities, joined relevant departments in seriously closing the cases of the 5 major accidents which are: an extremely serious road traffic black powder explosion in Shangrao, Jiangxi Province on March 17, 2005, an extremely serious fire accident in Nanshan Coalmine in Lingshi County of Jinzhong City of Shanxi Province on November 12, 2006, an extremely serious steel ladle capsizal accident at Qinghe Special Steel Co. Ltd. in Tieling City of Liaoning Province on April 18, 2007, a major methane explosion accident at Pudeng Coalmine in Linfen City of Shanxi Province on May 5, and an extremely serious bridge collapsing accident over Dixituo River in Fenghuang County of Hunan Povince.

根据《中华人民共和国行政监察法》、《中华人民共和国安全生产法》、国务院《生产安全事故报告和调查处理条例》等法律法规的规定，监察部认真履行行政监察职责，会同有关部门严肃查处了江西上饶"3.17"道路交通黑火药爆炸特别重大事故、山西省晋中市灵石县南山煤矿"11.12"特别重大火灾事故、辽宁省铁岭市清河特殊钢有限公司"4.18"钢水包倾覆特别重大事故、山西省临汾市蒲邓煤矿"5.5"重大瓦斯爆炸事故、湖南省凤凰县堤溪沱江大桥"8.13"特别重大坍塌事故等5起事故。

The results show that the explosion flame is very long with cohesive force, and propagates along the bottom of the pipe.

结果表明，瓦斯爆炸火焰是沿着管道的底部向前传播的，火焰长度较长，并具有较高的内聚力。

With the combination of the physical model based on excavation roadway during gas explosion,the gaseous phase detonation parameters are deduced on the conditions of the known gas congestion position,volume and concentration.

结合所建立的掘进巷道瓦斯爆炸的物理模型，当已知瓦斯聚积位置、体积和浓度时，利用Hugoniot方程和Rayleigh方程推导出了瓦斯爆轰参数的公式。

Combining with the theory of the conservation law of mass,momentum,energy and gas explosion dynamics,the attenuation law of shock wave in excavation roadway was deduced during gas explosion.

运用质量守恒、动量守恒和能量守恒定律及爆炸气体动力学理论等，对掘进巷道瓦斯爆炸冲击波的衰减规律进行研究。

Using this theory, the flame structure of gas explosion in a horizontal pipe were studied, and the results show that: the gas explosion flame in a horizontal pipe is much thicker than that calculated from the former explosion theory, the intermediate products in the flame region are in separated state between the higher and lower level, and the cohesive force of the luminous body at lower level is bigger than that of the nonluminous body at higher level, there is a negative pressure region in the flame, and the flame splits easily in its propagating process.

结果表明，a水平管道内瓦斯爆炸传播火焰的厚度比以往理论计算得到的厚度大得多；b火焰区内爆炸中间产物呈上下分离状态，下部明亮发光体的内聚力比上部非发光体的内聚力高；c在火焰区内会出现负压现象；d火焰在传播过程中会发生断裂现象。

This paper elaborated the conditions of explosion under the coal mine pithead,and then introduced the building modules of the explosion insulation motor detection system.

阐述了煤矿井下瓦斯爆炸发生的条件。介绍了隔爆电机检测系统的组成模块。分析了爆炸的特征时间，提出了精确测量与统计爆炸特征时间的解决方案

The phase-space of a gas dynamic system can be rebuilt by using the time series measurement of gas concentration in the working environment of a mine. It is discovered from fractal analysis that the variation of a gas dynamic system in an underground mine posse...

通过分形分析发现井下瓦斯动力系统的变化具有混沌特性，从而揭示了瓦斯动力系统安全状态变化遵循某种结构化规律，理论上其状态的变化是可以被确定性预报的，从而为瓦斯爆炸灾害系统的辨识与控制提供了理论依据。

Gas explosion experiment in pipe is designed to learn explosion process.

实验室进行管道模拟瓦斯爆炸实验是研究瓦斯爆炸特性的有效方法。

Through methane simulation experiment on ignition and blasting due to seam roof rock friction in Qinshui Coal Mining District of Yangcheng, it is shown that sparks will be generated through friction while caving ,causing gas and water mixture to fire, it is big hidden sources which cause methane blasting accident in goaf.

通过对阳城沁水矿区煤层顶板岩石相互摩擦引燃引爆瓦斯模拟实验，得出&岩石在冒落过程中相互撞击摩擦产生火花，可能引起瓦斯与空气混合物着火，是造成采空区瓦斯爆炸事故引爆源&的结论。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。