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一、前言近年来,由于矿井采煤向深部发展,随之而来的井下温度的上升和瓦斯涌出量的增加等,使通风问题越来越重要,而作为通风管理基本手段的风速测定就成为重要课题之一。作者们进行了叶轮型集中监视用风表的研究。这是由于叶轮型风表与其它风表相比,没有因附着粉尘而造成的影响,即使在象井下那样产生煤尘等粉尘较多的地方,因粉尘的附着而产生的误差也是很小的。试验
I. INTRODUCTION In recent years, ventilation problems have become more and more important due to the deep development of mine coal mining, the subsequent downhole temperature rise and the increase of gas emission amount, and the wind speed measurement as the basic means of ventilation management Become one of the important topics. The authors conducted a study of a wind-based watch for wind power. This is due to the fact that the impeller type wind indicator does not have the influence of dust adhesion compared with other wind indicators. Even when dust such as coal dust is generated as much as the downhole wind turbine, the error caused by dust adhesion is small . test