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1、关于自然发火瓦斯的分析 CO、CO_2和缺氧空气的比,或者是和窒息性空气的比,CO/CO_2与烷烃的比等,已被用于瓦斯分析。可是,由于细菌而产生CO的消灭、氧化生成以外的CO_2的产生以及和缺氧空气的混合气体等,还不能成为瓦斯分析的目标。根据上述理由,虽然还不明确如何分析,但是可先不考虑这些比值,把瓦斯的分析值,即把O_2、N_2、CH_4、CO、CO_2等画在图表上,从它们的变化进行试分析,也常常可以得到较好的效果。当然,这也是一种方法,由此读得的分析数据,不正是反映CO的增减吗?的确,CO如果在环境条件不发生变化的情况下,其增加可以说是趋向恶化方面。可是,当把它密闭时,虽在密闭之后CO立即发生激减,这并不能认为是情况急剧好转。另外,在刚进行密闭后,一般的是CH_4相当地增多,而CH_4增加多少其它气体就要减少多
1. Analysis of naturally occurring gas The ratio of CO, CO 2 and oxygen deficient air, or the ratio to asphyxiating air, the CO / CO 2 to alkane ratio, etc., has been used for gas analysis. However, the elimination of CO due to bacteria, the generation of CO 2 other than oxidation and the mixed gas with oxygen-deficient air can not be targeted for gas analysis. Based on the above reasons, although it is not clear how to analyze these values, we can first analyze the analysis values of gas, that is, O_2, N_2, CH_4, CO, CO_2, etc. on the charts without any consideration of these ratios. Often you can get better results. Of course, this is also a method whereby the analytical data read does not exactly reflect the change in CO? Indeed, if the CO does not change under the environmental conditions, its increase can be said to be a deteriorating trend. However, when the airtightness is closed, the immediate reduction in the CO immediately after the airtightness can not be regarded as a drastic turnaround. In addition, just after sealing, the general is CH_4 considerably increased, and CH_4 increase how much other gases will have to reduce more