高温高压下甲烷爆炸极限实验研究

摘要

The initial temperature and pressure have great influence on the explosion limits of methane. With the temperature range from 30 to 150 ℃ and pressure range from 0.1 to 0.9 MPa, the explosion limits of methane under high temperature and high pressure are tested by using the homemade experi-mental facilities. The test results show that the explosion limit range gets bigger along with the pressure increase. The pressure has more influence on the upper explosion limit, while it hardly has any influ-ence on the lower explosion limit; and along with the temperature increase, the explosion limit range also gets bigger, and the temperature has big influence on both the upper explosion limit and the lower explosion limit.%初始温度和压力对甲烷的爆炸极限有较大的影响.利用自行构建的实验装置,在温度范围为30~150℃、压力范围为0.1~0.9 MPa条件下,测试了高温高压下甲烷的爆炸极限.实验结果表明:随着压力的升高,爆炸极限范围变宽,且压力对爆炸上限的影响较大,对爆炸下限几乎无影响;随着温度的升高,爆炸极限范围也变宽,且温度对爆炸上限和下限都有较大影响.