浅谈锅炉汽包的水位测量误差分析与补偿计算  

Analysis and compensation of water level measurement error of boiler drum

作　　者：黄光明 李琪琪 谭京 朱利民 HUANG Guangming;LI Qiqi;TAN Jing;ZHU Limin(China CEC Engineering Corporation, Changsha 410114, China)

机构地区：[1]中国轻工业长沙工程有限公司,长沙410114

出　　处：《工业仪表与自动化装置》2020年第4期62-65,84,共5页Industrial Instrumentation & Automation

摘　　要：汽包液位计是用来测量锅炉汽包水位的一种测量仪表,通常测量锅炉汽包液位的仪表有3种,分别为电接点液位计、双色水位计和差压液位计。该文通过某热电项目平衡容器的差压水位测量为实例,着重介绍平衡容器的差压水位测量的基本要求、汽包水位测量的静态和动态特性以及测量引起的误差及单室平衡容器的差压液位计工作原理和计算公式等。Drum level gauge is a kind of measuring instrument used to measure the water level of boiler drum,usually there are three kinds of instruments to measure the level of boiler drum,which are electric contact level gauge,two-color water level gauge and differential pressure level gauge.Taking the differential pressure water level measurement of a thermoelectric balance vessel as an example,this paper mainly introduces the basic requirements of differential pressure water level measurement of the balance vessel,the static and dynamic characteristics of the drum water level measurement,the errors caused by the measurement,the working principle and calculation formula of the differential pressure level gauge of a single chamber balance vessel.

关 键 词：汽包水位 平衡容器 差压 原理 压力补偿 

分 类 号：TH7[机械工程—仪器科学与技术]