A performance diagnostic technology for SCR equipments in power plants

WANG Lele; SONG Yubao; YANG Xiaoning; XIANG Jun; SUN Lushi; LU Chengzheng; JIN Lipeng; ZHAO Junwu; NIU Guoping; KONG Fanhai

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A performance diagnostic technology for SCR equipments in power plants

更新时间：2025-09-28

- A performance diagnostic technology for SCR equipments in power plants
- Thermal Power Generation Vol. 43, Issue 10, Pages: 95-99(2014)
- 作者机构：
  
  1. 西安热工研究院有限公司苏州分公司
  2. 华中科技大学煤燃烧国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2014
- 稿件说明：
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WANG Lele, SONG Yubao, YANG Xiaoning, et al. A performance diagnostic technology for SCR equipments in power plants[J]. Thermal power generation, 2014, 43(10): 95-99.
DOI：

WANG Lele, SONG Yubao, YANG Xiaoning, et al. A performance diagnostic technology for SCR equipments in power plants[J]. Thermal power generation, 2014, 43(10): 95-99. DOI：

摘要

针对部分现役SCR装置运行过程中存在的氨逃逸浓度过大

系统阻力偏高

空气预热器ABS腐蚀及催化剂活性降低等问题

通过SCR运行性能诊断技术对某火电厂SCR装置的现场脱硝性能测试和催化剂实验室分析

全面评价了SCR装置的性能

提出了更换SCR催化剂

改造氨喷射系统等建议。SCR装置性能诊断技术为分析脱硝运行中的问题及科学制定催化剂更换管理策略提供了依据

该性能诊断的方法同样适用于其他类型机组的SCR装置。

Abstract

A variety of problems occur during operation of the current SCR equipments

such as the large ammonia escape amount

high system resistance

ABS corrosion in air preheater and reduction in catalyst activity.Thus

by field test and catalyst performance analysis in a laboratory

performance of the SCR equipment in a 1 036 MW unit was comprehensively evaluated.After the diagnosis

suggestions like changing the SCR catalyst and transforming the ammonia spraying system were put forward.This performance diagnostic technology provides basis for analyzing the problems occur during SCR device running and formulating catalyst replacement strategy scientifically

which is also applicable for SCR equipments in other types of units.

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