STATUS INSPECTION AND SERVICE LIFE ASSESSMENT OF WELDED JOINTS BETWEED TP304H / SA213T22 STEELS OF DIFFERENT SORT

doi:10.19666/j.rlfd.2005.10.021

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STATUS INSPECTION AND SERVICE LIFE ASSESSMENT OF WELDED JOINTS BETWEED TP304H / SA213T22 STEELS OF DIFFERENT SORT

Thermal Power Generation Issue 10, (2005)

更新时间：2025-09-28

- STATUS INSPECTION AND SERVICE LIFE ASSESSMENT OF WELDED JOINTS BETWEED TP304H / SA213T22 STEELS OF DIFFERENT SORT
- 作者机构：
  
  1. 苏州热工研究院
  2. 北仑第一发电有限责任公司
  3. 北仑第一发电有限责任公司,江苏,苏州,215004
  4. ,江苏,苏州,215004
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2005.10.021
  CLC： TG457.11
- Published：2005
- 稿件说明：
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STATUS INSPECTION AND SERVICE LIFE ASSESSMENT OF WELDED JOINTS BETWEED TP304H / SA213T22 STEELS OF DIFFERENT SORT[J]. Thermal Power Generation, 2005, (10).
DOI：

STATUS INSPECTION AND SERVICE LIFE ASSESSMENT OF WELDED JOINTS BETWEED TP304H / SA213T22 STEELS OF DIFFERENT SORT[J]. Thermal Power Generation, 2005, (10). DOI： 10.19666/j.rlfd.2005.10.021.

摘要

综合应用各种方法对TP304H/SA213T22高温再热器异种钢焊口进行了状态检测与寿命评估

结果认为取样管异种钢焊口已至寿命末期。据此该厂于2004年4月大修中有计划地对高温再热器管的异种钢焊口进行了全面改造

将此焊口安排到炉顶温度较低的部位

避免了泄漏发生后的大面积换管。

Abstract

Status inspection and service life assessment of welded joints between TP304H / SA213 T22 steels of different sort had been carried out by comprehensively using various testing methods.It had been believed that the welded joint between different steel sorts on sampled tube already reached the end of its service life.Based on this result

the welded joints between different steel sorts on high temperature superheater had been completely retrofitted in a planned major repair in April

2004.The welded joints have been allocated in the space of lower temperature at top of the furnace

a voiding tube replacement in large area after occurrence of leakage.

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