矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2014年
1期
57-59,62
,共4页
上隅角瓦斯%便携式甲烷报警仪%光学瓦斯检测仪%测定误差%氧气浓度
上隅角瓦斯%便攜式甲烷報警儀%光學瓦斯檢測儀%測定誤差%氧氣濃度
상우각와사%편휴식갑완보경의%광학와사검측의%측정오차%양기농도
gas at upper corner angle%portable gas detection alarm%optical gas detector%measuring error%oxygen concentration
庞庞塔煤矿10-702工作面使用便携式甲烷报警仪和光学瓦斯检测仪测定的数值不一致，数据相差近1%。通过对比两种检测仪器的原理、现场试验以及实验室气体取样分析，排除了仪器本身、井下环境、其他气体成分对测定数值的影响，得出两种检测仪器测定数据不一致的原因是由于工作面上隅角O2浓度偏低导致光学瓦斯检测仪测定数值偏大所致，并有针对性地提出光学瓦斯检测仪实测数据的修正公式等措施以解决类似的现场实际问题。
龐龐塔煤礦10-702工作麵使用便攜式甲烷報警儀和光學瓦斯檢測儀測定的數值不一緻，數據相差近1%。通過對比兩種檢測儀器的原理、現場試驗以及實驗室氣體取樣分析，排除瞭儀器本身、井下環境、其他氣體成分對測定數值的影響，得齣兩種檢測儀器測定數據不一緻的原因是由于工作麵上隅角O2濃度偏低導緻光學瓦斯檢測儀測定數值偏大所緻，併有針對性地提齣光學瓦斯檢測儀實測數據的脩正公式等措施以解決類似的現場實際問題。
방방탑매광10-702공작면사용편휴식갑완보경의화광학와사검측의측정적수치불일치，수거상차근1%。통과대비량충검측의기적원리、현장시험이급실험실기체취양분석，배제료의기본신、정하배경、기타기체성분대측정수치적영향，득출량충검측의기측정수거불일치적원인시유우공작면상우각O2농도편저도치광학와사검측의측정수치편대소치，병유침대성지제출광학와사검측의실측수거적수정공식등조시이해결유사적현장실제문제。
The gas concentration values which were respectively measured by the portable gas detection alarm and the optical gas detector in 10-702 working face of Pangpangta Coal Mine were inconsistent, with the value difference of nearly 1%. Through the comparison of two gas detectors’ principle, the field tests and the analysis of gas samples in the laboratory, the influence of the detector itself, underground environment factors and other gas components on the measuring values was ruled out, and it came to the conclusion that the cause of inconsistent measuring values by two gas detectors was due to the low oxygen concentration at the upper corner angle of the face, which led to the measuring values by the optical gas detector on the high side. For this purpose, the modified formula for the measuring values by the optical gas detector was proposed so as to solve the similar problems on the site.
