水汽脱气氢电导率多参数协同监测方法研究  

Study on multi-parameter collaborative monitoring methods for hydrogen conductivity in water vapor degassing

作　　者：田利 谭旭南 程阳[3] 冯向东 方湘瑜 陈丰[3] 张龙明 冯礼奎 张国锋 曹求洋 TIAN Li;TAN Xunan;CHENG Yang;FENG Xiangdong;FANG Xiangyu;CHEN Feng;ZHANG Longming;FENG Likui;ZHANG Guofeng;CAO Qiuyang(Zhejiang TPRI-LH Intelligent Sensing Technology Co.,Ltd.,Jiaxing 314400,China;Guangzhou Zhujiang LNG Power Generation Co.,Ltd.,Guangzhou 511457,China;Huaneng Power International,Inc.Beijing 100031,China;Zhejiang Energy R&D Institute Co.,Ltd.,Hangzhou 311121,China;Zhejiang Academy of Special Equipment Science,Hanghzhou 310020,China;State Grid Zhe-Jiang Electric Power Corporation Research Institute,Hanghzhou 310006,China)

机构地区：[1]浙江西热利华智能传感技术有限公司,浙江嘉兴314000 [2]广州珠江天然气发电有限公司,广东广州511457 [3]华能国际电力股份有限公司,北京100031 [4]浙江省浙能技术研究院,浙江杭州311121 [5]浙江省特种设备科学研究院,浙江杭州310020 [6]国网浙江省电力公司电力科学研究院,浙江杭州310006

出　　处：《热力发电》2023年第11期193-198,共6页Thermal Power Generation

基　　金：中国华能集团有限公司总部科技项目(HNKJ21-HF305)。

摘　　要：提出了一种基于双水膜脱气法和电再生离子交换技术相结合的水汽脱气氢电导率多参数协同监测系统及方法,可快速测量电导率、氢电导率、脱气氢电导率和pH值等多项关键水质指标,对水质做出综合评判,指导停机启动及正常运行水工况调整,对保障水汽品质及热力设备腐蚀、积盐、结垢的防控具有重要意义。其中,脱气氢电导率测量采用双水膜脱气技术,可高效脱除水中CO_(2),在此基础上提出标准溶液校准脱气氢电导率测量值的方法,可有效评判测量值的准确性。该方法用于典型的燃气联合循环机组、供热机组的现场监督,结果表明其测量准确性高,可快速综合评估水汽品质,能辅助解决现场出现的各类技术问题,具有很强的推广应用价值。This paper proposes a multi-parameter collaborative monitoring system and method for degassed hydrogen conductivity based on the combination of double water membrane degassed method and electric regeneration ion exchange technology,which can quickly measure a number of key water quality indicators such as conductivity,hydrogen conductivity,degassed hydrogen conductivity and pH.It can make comprehensive evaluation of water quality,guide thermal equipment shutdown and startup.And it can adjust normal operating water conditions.It has a great significance for ensuring water vapor quality and thermal equipment corrosion,salt accumulation and scale formation.Double water membrane degassing technology is used to measure degassed hydrogen conductivity,which can effectively remove CO_(2)from water.On this basis,a method of calibration degassed hydrogen conductivity measured by standard solution is proposed,so that the accuracy of the measured value can be effectively evaluated.This method has been applied to typical gas combined cycle units and heating units for on-site supervision.It proves that the method has high measurement accuracy,can quickly and comprehensively evaluate water vapor quality,and it can assist in solving various technical problems on site.Therefore,it has strong popularization and application value.

关 键 词：脱气 氢电导率 PH值 双水膜脱气 

分 类 号：TM611.31[电气工程—电力系统及自动化]