摘要
针对单分流器开式换向器存在换向挡板位置和喷嘴流速分布不均的问题,设计了一种换入/换出同向型换向器。在考虑该换向器各个工作阶段及整个工作过程中计量罐内的平均流量与管道中流量关系的基础上,建立了该换向器的换向流量模型。通过改变双分流器开式换向器换向挡板位置的方式,对质量法静态水流量标准装置的电磁流量计进行试验研究。结果表明,双分流器开式换向器的设计思想和设计结构是合理、可行的。
Aiming at the problems existing in single-shunt open type diverter, i. e. , the position of baffles and the uneven distribution of nozzle flow velocity, the diverter is designed based on the theory of swap in / swap out in the same direction. In addition, the model of this diverter is established in consideration of the relationship between the flow rate in pipeline and the average flow rate in metering tank during each working stage and whole process of the diverter. On the static water flow standard facility, through changing the position of baffles in the double-shunt open type diverter, the experimental research is carried out for electromagnetic flow meter. The result shows that the design concept and structure of the proposed diverter is reasonable and feasible.
出处
《自动化仪表》
CAS
北大核心
2013年第3期63-65,70,共4页
Process Automation Instrumentation
基金
浙江省质量技术监督局重大科研基金资助项目(编号:20100103)
关键词
换向器
电磁流量计
测量精度
相对误差
重复性
Diverter
Electromagnetic flow meter
Measurement precision
Relative error
Repeatability
