Wall temperature variation of high temperature heating surface in boiler of an ultra supercritical 1000 MW unit

ZHOU Jiang; YU Mingfang; YANG Zhuojun Guodian Zhejiang Beilun No.1 Power Generation Co.

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Wall temperature variation of high temperature heating surface in boiler of an ultra supercritical 1000 MW unit

Thermal Power Generation Vol. 42, Issue 2, Pages: 117-120(2013)

更新时间：2025-09-28

- Wall temperature variation of high temperature heating surface in boiler of an ultra supercritical 1000 MW unit
- 作者机构：
  
  国电浙江北仑第一发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.2
- Published：2013
- 稿件说明：
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ZHOU Jiang, YU Mingfang, YANG Zhuojun Guodian Zhejiang Beilun No.1 Power Generation Co.. Wall temperature variation of high temperature heating surface in boiler of an ultra supercritical 1000 MW unit[J]. Thermal Power Generation, 2013, 42(2): 117-120.
DOI：

ZHOU Jiang, YU Mingfang, YANG Zhuojun Guodian Zhejiang Beilun No.1 Power Generation Co.. Wall temperature variation of high temperature heating surface in boiler of an ultra supercritical 1000 MW unit[J]. Thermal Power Generation, 2013, 42(2): 117-120. DOI：

摘要

利用超超临界1 000MW机组锅炉高温受热面炉膛内壁温测量数据以及锅炉运行实时数据

分析炉内壁温变化与机组负荷、受热面出口壁温、测点位置等的关系

得到炉内高温过热器和高温再热器壁温变化曲线。结果表明:受热面出口壁温不能真实地反映炉内实际壁温;壁温与机组负荷变化一致;高温过热器炉前侧壁温随机组负荷的上升有所下降

炉后侧壁温与机组负荷变化一致。

Abstract

To study the effect of such factors as unit load

outlet wall temperature of heating surface and measuring points location on the boiler inner wall temperature variation

the real-time data of boiler operation and inner wall temperature in high-temperature heating surface of an ultra supercritical unit were measured.Wall temperature variation curves of the high-temperature reheater and high-temperature superheater were obtained.The results showed that

the outlet temperature of heating surface can not correctly reflect the actual furnace wall temperature.The variation of wall temperature was consistent with that of the uint load.Temperature at front wall of the high-temperature superheater decreased with an increase in unit load

while that at the back wall agreed well with the unit load.

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