摘要
随着精细化工、生物医药工程、半导体制备业兴起对小流量、微小流量测量的需求,国外市场出现诸多品种微小流量仪表,在中国应用亦日趋普遍。主要阐述所汇集20余种代表仪表的性能及其在流程工业、医疗保健、环保、实验室领域的应用。文章分析小流量、微小流量仪表所有共性的特点,如仪表运行于低雷诺数区,必须要经实流校准,大部分仪表只能测洁净低黏度流体等;论述差压式、浮子式、容积式、叶轮式、涡街式、电磁式、示踪式、超声式、科里奥利式和热式10种仪表的特点和应用,着重列举和讨论后3种新技术仪表。
As the development of fine chemical industry, biological medical engineering and semiconductor industry, because the requirement of the minor flowrate meter, there appears a variety of minor flowrate meters in foreign market, as well as in China. It is presented the performance and application of 20＇s variety of meters and those applications in chemical industry, medical, circumstance protection, laboratory etc. Their characteristics such as the data in low Re area should be calibrated by experiment, most of meters can only measure low viscosity fluids etc. are described. The pressure difference type, float type, volume type, impeller type, vortex type, electric magnetic tracing type, coriolis type and hot type etc. 10＇s variety of meters are discussed respectively. The last 3 new technology meters are taken as examples, and specially discussed.
出处
《石油化工自动化》
CAS
2009年第4期1-5,10,共6页
Automation in Petro-chemical Industry
关键词
流量仪表
微小流量
超声式
热式
科里奥利式
翻斗容积式
flowmeter
minor flowrate
ultrasonic type
thermal type
coriolis type
bucket PD type
