电厂电导率表在线检验技术的研究与应用

STUDY ON AND APPLICATION OF CONDUCTIVITY METER ON-LINE CHECKING TECHNOLOGY IN POWER PLANTS

针对电厂纯水系统电导率测量存在的问题,西安热工研究院有限公司研制并生产出YHJ-Ⅱ型移动式化学仪表检验装置。使用该装置对华能日照电厂1号机组水汽系统在线电导率表进行了检验,并与国内台式检验装置进行了比较。YHJ-Ⅱ移动式化学仪表检验装置具有氢交换柱性能检验、电导率表消除电容影响能力检验、非线性温度补偿检验等纯水电导率表检验必备的功能,且检表时不需要拆除在线仪表,检验操作快速简便。

Directing against problems existing in measuring conductivity in the pure water system of power plant, a YHJ -fl type movable chemical instrument checking apparatus has been developed and manufactured by Xi'an Thermal Power Reseach Institute Co Ltd. Adopting said apparatus, the on - line conductivity meter in water - steam system of unit no. 1 in Huaneng Rizhao Power Plant has been checked, and comparison with desk type checking apparatus in our country being carried out. The YHJ -II type movable chemical instrument checking apparatus has neccessary functions for checking pure water conductivity meters, such as for checking performance of the hydrogen exchange column, checking conductivity meter for eliminating the capacitance affecting capability, and checking non - linear temperature compensation etc.. In the event of u-sing said checking apparatus, it is not neccessary to remove the on - line meters, operation of checking to be rapid and convenient.