RETROFITTING OF WATER-LEVEL CONTROL SYSTEM FOR HIGHPRESSURE HEATER OF 350MW UNITS

HU Min; SHEN Qi

doi:10.19666/j.rlfd.2004.06.017

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RETROFITTING OF WATER-LEVEL CONTROL SYSTEM FOR HIGHPRESSURE HEATER OF 350MW UNITS

Thermal Power Generation Issue 6, Pages: 60-61(2004)

更新时间：2025-09-28

- RETROFITTING OF WATER-LEVEL CONTROL SYSTEM FOR HIGHPRESSURE HEATER OF 350MW UNITS
- 作者机构：
  
  1. 华能南通电厂,江苏,南通,226003
  2. ,江苏,南通,226003
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2004.06.017
  CLC： TM621
- Published：2004
- 稿件说明：
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HU Min, SHEN Qi. RETROFITTING OF WATER-LEVEL CONTROL SYSTEM FOR HIGHPRESSURE HEATER OF 350MW UNITS[J]. Thermal Power Generation, 2004, (6): 60-61.
DOI：

HU Min, SHEN Qi. RETROFITTING OF WATER-LEVEL CONTROL SYSTEM FOR HIGHPRESSURE HEATER OF 350MW UNITS[J]. Thermal Power Generation, 2004, (6): 60-61. DOI： 10.19666/j.rlfd.2004.06.017.

摘要

分析了华能南通电厂 35 0MW机组原高压加热器控制和保护系统存在的缺陷

并提出了具体的改进方案 :(1)淘汰气动控制器

以DCS实现其控制 ;(2 )改进高压加热器危急疏水方式 ;(3)增加变送器数量 ;(4 )改进保护逻辑和保护参数的设定。改进后的系统运行情况良好

Abstract

The defects existing in the control and protection sytem of highpressure (HP) heater for 350 MW untis iin Huaneng Nantong Power Plant have been analysed

and concrete retrofitting scheme being put forward as follows: (1) eliminating pneumatic controller

to realize control by using distributed control system (DCS); (2) improving emergency drain mode of the HP heater; (3) increasing the number of transducers; (4) improving the protection logic and setting of protection parameters. After retrofitting

the operation situation of the said control system is good.

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