金属管浮子流量计故障诊断功能设计  

Design of Self-diagnostic Function for Metal Tube Variable Area Flowmeter

作　　者：梁超 刘林辉 Liang Chao;Liu Linhui(Cheng De Re-he KROHNE Meters Co.,Ltd.,Chengde Hebei 067000)

机构地区：[1]承德热河克罗尼仪表有限公司,河北承德067000

出　　处：《中国仪器仪表》2022年第5期52-56,共5页China Instrumentation

摘　　要：随着软件技术和人工智能的发展,工业过程控制领域对工业仪器仪表在适应性,稳定性和精准性等方面提出了更高的要求。流量是工业过程中的主要监控目标,基于不同的原理和自身的特点,各种流量测量仪表正在通过不断的软硬件升级和功能的扩展来拓展自己的应用范围。金属管浮子流量计是基于磁耦合原理的机械式流量测量方案,基于霍尔效应原理的转换器通过感知浮子的内置磁场来判断浮子的位置,从而可以判断流量的大小。本文根据金属管浮子流量计发生故障的特点,通过监测流量或磁场的变化情况来锁定故障,再通过故障信息反馈达到及时排除故障的目的,利用软件智能技术手段,实现精准测量,延长使用寿命。With the development of software technology,the industrial process control instrument become more and more intelligence.For flow measurement,many kinds of flowmeter extend the use by continually upgrading the additional functions.Based on the principle of magnetic coupling,the metal tube variable area flowmeter is machinal design,the flow rate is corresponding to the height of the float,we can know the height of the float by detecting the magnetic strength form the float.From the view of the features of metal tube flowmeters when the fault was happening,we can know the fault style by detecting the change of the flow and magnetic strength.The users can do the maintenance after they receive the fault information from the flowmeter on the field.

关 键 词：金属管浮子流量计 故障诊断 浮子卡滞 流态不稳 磁场异常 

分 类 号：TH814.7[机械工程—仪器科学与技术]