威力巴流量计在煤矿管道瓦斯流量计量中的应用

摘要

In view of problems of complex installation,low measurement accuracy and large permanent pressure loss of pipeline gas flowmeter of coal mine such as V-cone flowmeter,orifice flowmeter and ultrasonic flowmeter,an application of Verabar flowmeter based on differential pressure measuring principle in the pipeline gas flowmeter of coal mine was introduced.Measuring principle and performance features of the Verabar flowmeter were given,a viewpoint was pointed out that the Verabar flowmeter has the best performance of anti-blocking compared with the other averaging velocity tube flowmeters.The result of experimental and field tests show that the Verabar flowmeter has characteristics of accurate measuring,simple structure,low pressure loss and can be suitable for detection of the pipeline gas flow of coal mine.%针对煤矿管道瓦斯流量计如V锥流量计、孔板流量计及超声波流量计存在安装复杂、测量精度低、永久性压力损失大等问题,介绍了一种基于差压测量原理的威力巴流量计在煤矿管道瓦斯流量计量中的应用；给出了威力巴流量计测量原理和性能特点,指出与其他均速管流量计相比,威力巴流量计的防堵性能最优.实验室和现场测试结果表明,威力巴流量计具有测量准确、结构简单和低压力损失的特点,适用于煤矿管道瓦斯流量的检测.