发电厂水汽取样装置运行现状及改进方向研究  

Research on the Operation Status and Improvement Direction of Water and Steam Sampling Devices in Power Plants

作　　者：杨裕民 崔锐 哈燕萍 汪思华 胡振华[1] YANG Yu-min;CUI Rui;HA Yan-ping;WANG Si-hua;HU Zhen-hua(Xi’an Thermal Power Research Institute Co.,Ltd.Xi’an 710054,China;Huaneng Lanzhou Xigu Thermal Power Co.,Ltd.Lanzhou 730030,China)

机构地区：[1]西安热工研究院有限公司,陕西西安710054 [2]华能兰州西固热电有限公司,甘肃兰州730030

出　　处：《全面腐蚀控制》2023年第10期68-71,75,共5页Total Corrosion Control

摘　　要：发电厂在线化学仪表监测数据失真,不能真实反映水质情况,将会导致化监测控制和加药控制出现偏差,从而引起机组热力设备严重的腐蚀、结垢、积盐事故。当前,水汽取样装置存在的自动化水平低下、水样关键参数调节缺失等问题,严重制约在线化学仪表测量准确性,给热力设备防腐防垢带来巨大影响。本文总结了电厂水汽取样装置运行现状,对其存在的问题进行详细论述,并提出改进方向,为水汽取样装置性能提升提供方向指引。The distorted monitoring data of online chemical instruments in power plants cannot truly reflect the water quality situation,which will lead to deviations in chemical monitoring control and dosing control,leading to serious corrosion,scaling,and salt accumulation accidents of the thermal equipment of the unit.At present,the automation level of water and steam sampling devices is low,and the key parameter adjustment of water samples is missing,which seriously restricts the accuracy of online chemical instrument measurement and has a huge impact on the corrosion and scale prevention of thermal equipment.This article summarizes the current operation status of water and steam sampling devices in power plants,discusses in detail the existing problems,and proposes improvement directions to provide direction for improving the performance of water and steam sampling devices.

关 键 词：发电厂 水汽取样 高温取样架 在线化学仪表 

分 类 号：TM621.8[电气工程—电力系统及自动化]