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在瓦斯排放工作中,有些钻孔瓦斯涌出量很低,用一般流量计不易测出,所以寻求一种适合测定低流量的计量工具就显得十分必要。最近我们在鹤壁、阳泉等矿的排瓦斯钻孔中,试用了皂膜流量计,对微小的瓦斯流量也获得较园满的测定数据,在实验中最小流量0.2毫升/秒也可准确测出。这种流量计制作简单,精确度高,使用方便,在煤气表类型的干式流量计和浮子流速计不能适用
In the gas drainage work, some boreholes gas emission is very low, with the general flowmeter is not easy to measure, so to find a suitable measurement of low flow measurement tool is necessary. We recently in Hebi, Yangquan and other mine drainage gas drilling holes, the trial of the soap film flow meter, the flow of small gas also get more full of measured data in the experiment, the minimum flow rate of 0.2 ml / sec can be accurately measured . This kind of flowmeter is simple to make, with high precision and easy to use. The dry type flowmeter and the floatometer in the gas meter type can not be applied