摘要
简要介绍了一些目前工业上常用的流量计,并将其分类差压式流量计、涡街流量计、涡轮流量计、浮子流量计、数字靶式流量计、电磁流量计、超声波流量计等。每种流量计都各自的特点和适用范围,差压式流量计具有结构简单、结构稳定、使用年限长的优点,但也有测量进度低、受环境限制等缺点。涡街、涡轮流量计可以测量多种介质,不受参数影响,但涡轮流量计易被卡住。浮子流量计有压损小且稳定,可测低流速介质,但不适用于测量有微粒的液体。数字把式流量计具有耐高温的特点,但对介质要求很高。电磁流量计与把式流量计互补。超声波流量计可以测量各种介质,但技术有待于提高。
Common industrial flowmeters were introduced and classified, such as differential pressure flowmeter, vortex flowmeter, turbine flowmeter, float flow meter, digital target type flowmeter, electromagnetic flowmeter, ultrasonic flowmeter. Characteristics and application scope of different, flowmeters were discussed. The differential pressure type flow meter has advantages of, simple and stable structure, long life, but has disadvantages of low measuring progress, environmental restriction. Vortex, turbine flowmeter can measure some varieties of media without the parameter influence, but the turbine flowmeter is easily blocked. Float flow meter has the advantages of low pressure loss and stable, can measure low flow medium, but it is not suitable for the measurement of fluid with particle Digital fluid flowmeter has high temperature resistance characteristic, but has high requirement for medium. Electromagnetic flow meter and target type flowmeter are complementary. Ultrasonic flowmeter can measure various media, but the technology remains to be improved.
出处
《当代化工》
CAS
2011年第12期1294-1296,1304,共4页
Contemporary Chemical Industry
关键词
流量计
分类
适用的范围
优点
缺点
Flowmeter
Classification
Applicable scope
Advantages
Disadvantages
