ANALYSIS OF HEAT SENSTIVITY FOR WATER-WALL WITH VERTICAL PIPE-LOOPS IN SUPERCRITICAL CFB BOILERS

CHEN Bo1; LI Qiang2; ZHU Xiaojing3; BI Qincheng31.Guangxi Electric Power Survey and Design Institute

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ANALYSIS OF HEAT SENSTIVITY FOR WATER-WALL WITH VERTICAL PIPE-LOOPS IN SUPERCRITICAL CFB BOILERS

更新时间：2025-09-28

- ANALYSIS OF HEAT SENSTIVITY FOR WATER-WALL WITH VERTICAL PIPE-LOOPS IN SUPERCRITICAL CFB BOILERS
- Thermal Power Generation Vol. 39, Issue 10, Pages: 14-19(2010)
- 作者机构：
  
  1. 广西电力工业勘察设计研究院
  2. 西安热工研究院有限公司
  3. 西安交通大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.2
- Published：2010
- 稿件说明：
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CHEN Bo1, LI Qiang2, ZHU Xiaojing3, et al. ANALYSIS OF HEAT SENSTIVITY FOR WATER-WALL WITH VERTICAL PIPE-LOOPS IN SUPERCRITICAL CFB BOILERS[J]. Thermal power generation, 2010, 39(10): 14-19.
DOI：

CHEN Bo1, LI Qiang2, ZHU Xiaojing3, et al. ANALYSIS OF HEAT SENSTIVITY FOR WATER-WALL WITH VERTICAL PIPE-LOOPS IN SUPERCRITICAL CFB BOILERS[J]. Thermal power generation, 2010, 39(10): 14-19. DOI：

摘要

对超临界循环流化床(CFB)锅炉垂直管圈水冷壁的热敏感性系数进行了定量计算

分析了干度、质量流速及压力等参数对锅炉水冷壁热敏感性的影响。对水冷壁在不同锅炉负荷下进行了温度偏差及出口焓值偏差的计算

结果表明

超临界CFB锅炉水冷壁在具有30%热流密度增量条件下

其温度偏差远低于超临界煤粉锅炉水冷壁具有10%热流密度增量时的温度偏差。

Abstract

The heat sensitivity coefficient of water-wall with vertical pipe-loops in supercritical CFB boilers has been quantitatively calculated

the infuence of parameters

such as the dryness

the mass flow speed

and the pressure etc.upon the heat sensitivity of water-wall in the boiler being analysed.The temperature deviation and enthalpy deviation at outlet of the water-wall under different boiler load have been calculated

the calculation shows that the temperature deviation on water-wall in supercritical CFB boiler with 30% increament of heat flux density on its water-wall is far lower than that of supercritical pulverized coal boiler with 10% increament of heat flux density on its water-wall.

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