CAUSE ANALYSIS OF CONTINUOUS TUBE BURST ON HOLDING PIPES OF THE SCREEN-TYPE REHEATER FOR BOILER NO1 IN ONE POWER PLANT

ZHAO Mingzhong; WU Kai Gansu Electric Power Science Research Institute

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

CAUSE ANALYSIS OF CONTINUOUS TUBE BURST ON HOLDING PIPES OF THE SCREEN-TYPE REHEATER FOR BOILER NO1 IN ONE POWER PLANT

更新时间：2025-09-28

- CAUSE ANALYSIS OF CONTINUOUS TUBE BURST ON HOLDING PIPES OF THE SCREEN-TYPE REHEATER FOR BOILER NO1 IN ONE POWER PLANT
- Thermal Power Generation Vol. 41, Issue 2, Pages: 88-90(2012)
- 作者机构：
  
  甘肃电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK228
- Published：2012
- 稿件说明：
移动端阅览
ZHAO Mingzhong, WU Kai Gansu Electric Power Science Research Institute. CAUSE ANALYSIS OF CONTINUOUS TUBE BURST ON HOLDING PIPES OF THE SCREEN-TYPE REHEATER FOR BOILER NO1 IN ONE POWER PLANT[J]. Thermal power generation, 2012, 41(2): 88-90.
DOI：

ZHAO Mingzhong, WU Kai Gansu Electric Power Science Research Institute. CAUSE ANALYSIS OF CONTINUOUS TUBE BURST ON HOLDING PIPES OF THE SCREEN-TYPE REHEATER FOR BOILER NO1 IN ONE POWER PLANT[J]. Thermal power generation, 2012, 41(2): 88-90. DOI：

摘要

对某电厂发电机组锅炉屏式再热器(屏再)夹持管连续多次爆管原因进行了分析

认为在焊接过程中未能严格执行焊接工艺要求

致使焊接接头的热影响区产生晶粒粗大和黑色网状晶界的不良组织

并且焊后热处理不当使熔合线产生了沿晶裂纹

这些裂纹在机组运行过程中逐渐扩展造成管子沿焊缝熔合线开裂。对此

建议加强设备监造

对重要的承压部件进行无损探伤抽检和理化性能试验。

Abstract

The causes leading to continuous and frequent tube bursts on holding pipes of screen-typ reheater for boiler no1 in one power plant have been analysed

it is believed that the requirements of welding process hadn't strictly implemented during the course of welding

resulting in bad structure of coase-grained and black-reticulated grain boundaries appeared in the heat affecting areas of welded joints.Owing to unsuitable heat treatment after welding

the along-crystalline cracks are occurred on fusion lines

these cracks expand in operation

resulting in rupture along fusion line of the welding joints on pipes.It is recommented to further strengthen the supervision in manufacturing the equipments

and to carry out non-destructive inspection and physico-chemical test for the important pressurized parts.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

STUDY ON SERVICING BEHAVIOR OF BOILER TUBES MADE FROM 18-8 TYPE AUSTENITIC STAINLESS STEEL(6)

CAUSE ANALYSIS OF DESUPERHEATER FRACTURE FOR BOILER OF 600 MW UNIT

ANALYSIS OF OVERTEMPERATURE PROBLEM OCCURRED ON PIPE WALL OF HIGH-TEPERATURE HEATING SURFACE FOR BOILERS IN ZHUHAI POWER PLANT AND SOLVING SCHEME THEREOF

Study on blowing process of oxide skin of steam pipeline in a 1000 MW unit

THE CARBIDE CONTAINED IN HCM25(T23) STEEL AND EVOLUTION REGULARITY THEREOF

Related Author

MA Hong

ZHANG Lei

ZHENG Fangping

HE Xipeng

SHI Zhigang

WANG Hongzhe Xi'an Thermal Power Research Institute Co Ltd

LIU Feng

YAN Kai-ping

Related Institution

Xi'an Thermal Power Research Institute Co., Ltd

Datang Panshan Power Generation Co., Ltd

Guangqian Electric Power Co., Ltd

Shaanxi Energy Zhaoshipan Coal and Electricity Co., Ltd

Guangdong Power Grid Corporation Electric Power Science Research Institute

AI问答

⁰