摘要
Abstract
The measurement of gas flow in pipeline is an important monitoring method for gas extraction. Mixed gas in the coal seam drainage pipeline, with many particles impurities and high humidity and site conditions, required measuring equipment must have no moving parts, dirt resistant ability of medium, low cost, high precision, easy installation etc. By analyzing the development status of such pipeline gas flow measurement as the vortex street, V cone flowmeter etc, and based on their application in Beizao Coal Mine, from the technical characteristics of the set-up, maintenance, data transmission and analysis, focuses on how to ensure that the result of the pipeline gas measurement is accurate and suitable for the working conditions of coal mine site, truly reflecting the actual gas extraction.关键词
管道瓦斯/监测计量/V锥流量Key words
pipeline gas/monitoring measurement/V cone flow分类
机械制造
