Research and application of full load denitration technology in 1000 MW tower type boiler

WANG Yuwei

doi:10.19666/j.rlfd.201909200

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Research and application of full load denitration technology in 1000 MW tower type boiler

Thermal Power Generation Vol. 49, Issue 2, Pages: 104-109(2020)

更新时间：2025-09-28

- Research and application of full load denitration technology in 1000 MW tower type boiler
- 作者机构：
  
  国家能源集团谏壁发电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201909200
  CLC： TM621.7
- Published Online：15 January 2020，
  
  Published：2020
- 稿件说明：
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WANG Yuwei. Research and application of full load denitration technology in 1000 MW tower type boiler[J]. Thermal Power Generation, 2020, 49(2): 104-109.
DOI：

WANG Yuwei. Research and application of full load denitration technology in 1000 MW tower type boiler[J]. Thermal Power Generation, 2020, 49(2): 104-109. DOI： 10.19666/j.rlfd.201909200.

摘要

国内尚无超超临界机组实现在网运行期间选择性催化还原(SCR)系统全程不间断运行的改造案例。本文以某超超临界1 000 MW机组塔式锅炉为研究对象

结合塔式锅炉省煤器布置特点

利用大容量高、低压串联旁路系统设计的有利条件

提出了采用省煤器水旁路和热水再循环的组合方案

满足了全负荷段实现NOx超低排放的要求。在此基础上

提出了该方案在深度调峰、机组启动和滑参数停机3个典型工况下控制策略

为同类型机组全负荷脱硝的设计改造和控制优化提供借鉴。

Abstract

In China

there is no case that the SCR system was transformed during operating uninterruptedly in the period of grid operation for ultra supercritical units. In this paper

a 1 000 MW ultra-supercritical tower type boiler was taken as the research object. Considering the layout characteristics of the economizer of the tower type boiler and utilizing the favorable conditions of the high and low pressure series bypass system with large capacity

a combined scheme of economizer water bypass and hot water recirculation was proposed

which meets the requirements of ultra-low emission of NOx in the full load section. Furthermore

the control strategy of the scheme under three typical conditions of deep peak shaving

unit start-up and sliding parameter shutdown was proposed

which provides a reference for the design transformation and control optimization of full-load denitrification of the same type units.

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Publicity Resources

ANALYSIS OF HEATING SURFACE FOULING BEHAVIOR AND OPTIMIZED RETROFIT OF SOOT-BLOWING SYSTEM FOR TOWER TYPE BOILER OF 500 MW UNIT

Study on installation of high-temperature heat exchanger for a 1100t/h tower type boiler

Thermal hydrodynamic characteristics and wall temperature distribution of an ultra-supercritical 1 000 MW unit double-reheat tower type boiler

Related Author

YAN Weiping1

DONG Jiancong1

GAO Zhengyang1

LIU Yimin2

LI Wenlin2

SU Huicong21.Key Laboratory for Condition Monitoring and control of Equipments in Power Plants under Ministry of Education

LIU Bo

ZHENG Wenguang

Related Institution

Key Laboratory of Power Station Equipment Status Monitoring and Control, Ministry of Education, North China Electric Power University

State Grid Shentou Second Power Plant

Huadian Electric Power Research Institute

Huaneng Laiwu Power Generation Co., Ltd

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