Modification of secondary stage desuperheater for superheater in a 1025t/h boiler

HUANG Junjie

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Modification of secondary stage desuperheater for superheater in a 1025t/h boiler

更新时间：2025-09-28

- Modification of secondary stage desuperheater for superheater in a 1025t/h boiler
- Thermal Power Generation Vol. 43, Issue 3, Pages: 113-115(2014)
- 作者机构：
  
  广州恒运热电(D)厂有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.32
- Published：2014
- 稿件说明：
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HUANG Junjie. Modification of secondary stage desuperheater for superheater in a 1025t/h boiler[J]. Thermal power generation, 2014, 43(3): 113-115.
DOI：

HUANG Junjie. Modification of secondary stage desuperheater for superheater in a 1025t/h boiler[J]. Thermal power generation, 2014, 43(3): 113-115. DOI：

摘要

恒运电厂1 025t/h锅炉过热器二级减温器内套筒上弧形扁铁脱落导致后屏过热器接连爆漏。对此

将其悬臂式喷管结构改造为喷管两端夹持式

消除了悬臂式喷管的高频振动隐患

避免了交变热应力过分集中在喷管根部导致喷管断裂进而引发受热面暴漏的事故。

Abstract

The arc flat iron on inner sleeve of the secondary desuperheater of the 1 025t/h boiler in Hengyun Power Plant fell off

resulting in successional tube burst in the platen superheater.Analysis shows that

due to high frequency vibration of the cantilever nozzle

the alternating thermal stress concentrates intensively in bottom of the nozzle

leading to fracture on the nozzle and then burst of the tubes.Thus

the cantilever nozzle was transformed into both-end-clamp nozzle.

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Related Institution

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