转子流量计用于气体采样测量中应注意的问题  

Some Issues in Using Rotameters for Gas Sampling and Measurement

作　　者：孟冶成[1] 

机构地区：[1]南华大学核科学技术学院氡实验室,衡阳421001

出　　处：《辐射防护通讯》2006年第6期21-23,共3页Radiation Protection Bulletin

摘　　要：转子流量计用于气体采样测量,其指示值与实际流量因气压、温度的不同会有一定的误差,对流量计的指示值进行修正后才能得到真实流量值。本文介绍了转子流量计指示值在非标准大气压和抽气中在流量计入口处出现负压时两种情况下的修正方法,以及气体采样测量中的注意事项。When rotameters are used to sample and measure gas,there is some discrepancy between the indications of rotameters and the actual gas flow because of different gas pressure and temperatures.The actual gas flow can be obtained only after the indicated values being corrected.This paper describes correction methods in two given circumstances: nonstandard atmosphere pressure condition and minus pressure condition at the entrance while sampling.In addition,some issues worth attention in gas sampling and measurem...

关 键 词：转子流量计 气体采样 测量 

分 类 号：X831[环境科学与工程—环境工程]