THE MEASUREMENT TEST AND THREE-DIMENSIONAL CALCULATION OF WALL-TEMPERATURE FOR PLATEN SUPERHEATER OF BOILER EQUIPPED FOR 600 MW UNIT

XU Haichuan1; PAN Cheng1; CHENG Zutian1; ZHANG Liangbo21.Henan Provincial Electric Power Survey & Design Institute

English

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THE MEASUREMENT TEST AND THREE-DIMENSIONAL CALCULATION OF WALL-TEMPERATURE FOR PLATEN SUPERHEATER OF BOILER EQUIPPED FOR 600 MW UNIT

Thermal Power Generation Vol. 40, Issue 6, Pages: 13-16(2011)

更新时间：2025-09-28

- THE MEASUREMENT TEST AND THREE-DIMENSIONAL CALCULATION OF WALL-TEMPERATURE FOR PLATEN SUPERHEATER OF BOILER EQUIPPED FOR 600 MW UNIT
- 作者机构：
  
  1. 河南省电力勘测设计院
  2. 武汉大学动力与机械学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.32
- Published：2011
- 稿件说明：
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XU Haichuan1, PAN Cheng1, CHENG Zutian1, et al. THE MEASUREMENT TEST AND THREE-DIMENSIONAL CALCULATION OF WALL-TEMPERATURE FOR PLATEN SUPERHEATER OF BOILER EQUIPPED FOR 600 MW UNIT[J]. Thermal Power Generation, 2011, 40(6): 13-16.
DOI：

XU Haichuan1, PAN Cheng1, CHENG Zutian1, et al. THE MEASUREMENT TEST AND THREE-DIMENSIONAL CALCULATION OF WALL-TEMPERATURE FOR PLATEN SUPERHEATER OF BOILER EQUIPPED FOR 600 MW UNIT[J]. Thermal Power Generation, 2011, 40(6): 13-16. DOI：

摘要

大型锅炉过热器爆管是造成机组强迫停机的重要因素之一

而大多数的爆管都是由管壁超温引起的。因此

为了准确了解锅炉屏式过热器(屏过)的壁温分布情况

在大别山电厂超临界600 MW机组锅炉屏式过热器上进行了炉内外壁温测试

实时采集了炉内壁温及炉外壁温的变化数据

找出了屏式过热器炉内外壁温的关系

并用最小二乘法拟合出二者的关联模型

并进行了三维壁温分布计算分析。利用所拟合的屏式过热器炉内外壁温的关联模型及炉外可长久保留的测点测量出的温度t0

可以预测发生超温管段的炉内温度。此外

利用该模型还可验证屏式过热器三维管壁温度计算程序结果的可靠性。

Abstract

The tube-burst of superheater in large-capacity boilers is an improtant factor resulting in forced shutdown of units

and a large number of tube-burst are caused by overtemperature of tube walls.Hence

in order to accurately understand the wall temperature distribution on platen superheater of the boiler

a measurement test of inner and outer wall temperature has been carried out on the platen superheater of boiler equipped for a supercritical 600 MW unit in Dabieshan Power Plant

collecting in real-time the data variation of wall temperature inside and outside the furnace

finding out the relationship between wall temperatures of platen superheater inside and outside the furnace

and a cognate model between them being given by using the fitting method

and calculation and analysis of three-dimensional wall-temperature distribution being carried out.By using the cognate model developed forthe platen superheater's wall temperature inside and outside the furnace and the temperature to measured at measuring points retainable for a long time outside the furnace

the temperature of overtemperature tube-section inside the furnace can be predicted.Besides

the reliability of results obtained from computing program for three-dimensional wall temperature of the platen superheater can also be verified by using said model.

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