SEVERAL PROBLEMS EXISTING IN OPERATION OF SUPERCRITICAL AND ULTRA-SUPERCRITICAL BOILERS

WANG Meng-hao1; WANG Heng1; ZHENG Min-niu2; YANG Cong-xuan31.Shanghai Wangte Energy Science and Technology Co Ltd

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SEVERAL PROBLEMS EXISTING IN OPERATION OF SUPERCRITICAL AND ULTRA-SUPERCRITICAL BOILERS

更新时间：2025-09-28

- SEVERAL PROBLEMS EXISTING IN OPERATION OF SUPERCRITICAL AND ULTRA-SUPERCRITICAL BOILERS
- Thermal Power Generation Vol. 39, Issue 2, Pages: 14-17(2010)
- 作者机构：
  
  1. 上海望特能源科技有限公司
  2. 国电谏壁电厂
  3. 上海发电设备成套设计研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.2
- Published：2010
- 稿件说明：
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WANG Meng-hao1, WANG Heng1, ZHENG Min-niu2, et al. SEVERAL PROBLEMS EXISTING IN OPERATION OF SUPERCRITICAL AND ULTRA-SUPERCRITICAL BOILERS[J]. Thermal power generation, 2010, 39(2): 14-17.
DOI：

WANG Meng-hao1, WANG Heng1, ZHENG Min-niu2, et al. SEVERAL PROBLEMS EXISTING IN OPERATION OF SUPERCRITICAL AND ULTRA-SUPERCRITICAL BOILERS[J]. Thermal power generation, 2010, 39(2): 14-17. DOI：

摘要

论述了超临界和超超临界锅炉过热器和再热器高温管屏运行中防止超温爆管的几个关键问题

如管内产生氧化皮、突发性扰动、燃烧调整、屏宽方向吸热偏差和同屏热偏差、炉膛出口两侧的烟温偏差、过热器末级喷水量、炉外壁温测点的保温等。建议采用炉内壁温在线监测装置

以降低热偏差屏的炉内壁温水平

减少管内氧化皮的生成

保证锅炉的安全经济运行。

Abstract

Several key problems of preventing over-temperature tube-burst in operation of high-temperature tube-panel on superheater and reheater of supercritical and ultra-supercritical boilers have been expounded

including oxide skin produced in the tubes

suddenly occurred disturbance

combustion adjustment

heat-Absorbing deviation along the direction of panel width

thermal deviation on the same panel

flue gas temperature deviation at two sides of the furnace outlet

water-spraying amount for final-stage superheater

and thermal insulation of temperature-measuring points at outlet side of the furnace etc..It is recommended to adopt on-line monitoring device for wall temperature in the furnace

so as to reduce the wall temperature level in furnace for tube panel with theraml deviation

decreasing formation of oxide skin in the tubes

ensuring safe and economic operation of boilers.

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