Research and application of on-line monitoring technology for chloride in desulfurization system of power plant

ZHONG Jie; LIU Wei; LONG Guojun; WU Lei; XIONG Weijun; LIU Hailong

doi:10.19666/j.rlfd.202307113

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Research and application of on-line monitoring technology for chloride in desulfurization system of power plant

更新时间：2025-09-28

- Research and application of on-line monitoring technology for chloride in desulfurization system of power plant
- Thermal Power Generation Vol. 53, Issue 2, Pages: 170-176(2024)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能武汉发电有限责任公司
  3. 中国华能集团有限公司华中分公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202307113
  CLC： X773
- Published：2024
- 稿件说明：
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ZHONG Jie, LIU Wei, LONG Guojun, et al. Research and application of on-line monitoring technology for chloride in desulfurization system of power plant[J]. Thermal power generation, 2024, 53(2): 170-176.
DOI：

ZHONG Jie, LIU Wei, LONG Guojun, et al. Research and application of on-line monitoring technology for chloride in desulfurization system of power plant[J]. Thermal power generation, 2024, 53(2): 170-176. DOI： 10.19666/j.rlfd.202307113.

摘要

氯离子是发电厂脱硫系统的关键运行指标，快速准确监测脱硫浆液氯离子对脱硫设备防腐、运行工艺优化调整、脱硫废水排放及节水均具有重要意义。通过样品预处理的方法研发出了一种高效复合介质滤芯，及适用于脱硫系统样品预处理的方法，并进行了实验室实验；对脱硫系统氯离子在线测量方法原理进行研究，研制出了一种固态聚合膜氯离子选择性电极，研究出了一种发电厂脱硫系统氯离子在线监测技术，并进行了实验室准确性实验以及现场工业应用试验。结果表明：该脱硫系统氯离子在线监测技术能够实现脱硫浆液中氯离子的连续准确在线监测，大大减少了工作量，提高氯离子测量准确性，对实现脱硫系统设备的经济、智能化运行具有重要意义。

Abstract

Chloride ion is the key operating index in desulfurization system of power plants. Rapid and accurate monitoring of chloride ion content in desulfurization slurry is of great significance for anti-corrosion of desulfurization equipment

optimization and adjustment of operation process

as well as desulfurization waste water discharge and water saving. By studying the pretreatment method of sample

a high-efficiency composite medium filter is developed

and the method suitable for the desulfurization system sample pretreatment is studied

and the laboratory test is carried out. At the same time

by studying the principle of online measurement method of chloride ion in desulfurization system

a solid polymer membrane chloride selective electrode is developed

and on-line monitoring technology of chloride ion in desulfurization system of power plant is developed

and the accuracy test in laboratory and field industrial application test are carried out. The results show that

the technology can realize continuous and accurate online monitoring of chloride ion content in desulfurization slurry

reduce the workload of laboratory personnel greatly

and improve the accuracy of chloride ion measurement. It is of great significance to realize the economic and intelligent operation of desulfurization system equipment.

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