再热器减温器裂纹原因分析及处理

doi:10.3969/J.ISSN.2095-3429.2017.03.004

发电技术 ›› 2017, Vol. 38 ›› Issue (3): 14-17,13.DOI: 10.3969/J.ISSN.2095-3429.2017.03.004

再热器减温器裂纹原因分析及处理

陈石凌

杭州华电半山发电有限公司, 浙江杭州 310015

收稿日期:2017-03-24 修回日期:2017-05-15 出版日期:2017-06-30 发布日期:2017-06-30
作者简介:陈石凌(1966-),男,浙江上虞人,本科,工程师,从事电站锅炉设备的安装、检修、调试等技术工作。

Reason Analysis and Treatment for Cracking in Reheater Attemperator

CHEN Shi-ling

Hangzhou Huadian Banshan Power Generation Co., Ltd, Hangzhou 310015, China

Received:2017-03-24 Revised:2017-05-15 Published:2017-06-30 Online:2017-06-30

摘要/Abstract

摘要： 再热器减温器的检修是燃机例行检修的重要环节，结合公司6台燃机在检修中发现的减温器进水管焊缝裂纹现象，通过分析再热器减温器焊缝产生裂纹、断裂的原因，对其中一台燃机的减温器进水管、套管结构实施了改进，经过2年多时间的运行，目前运行状况较好。

关键词: 机械雾化减温器, 混合式减温器, 疲劳破坏, 再热器1、2连通管, 裂纹

Abstract: The inspection of reheater attemperator is an important part of routine maintenance of gas turbine.This article described the water inlet pipe of desuperheater weld crack phenomenon found in the routine maintenance of 6 gas turbine,and analyzed the reason of desuperheater weld cracking and fracture. On one of the gas turbine desuperheater,the inlet pipe and the heat exchanger casing structure were improved. After more than 2 years of operation,it's currently running in good condition.

Key words: mechanical atomizing desuperheater, hybrid attemperator, fatigue failure, 1,2 communicating pipe of the reheater, cracking

中图分类号:

TK229

陈石凌. 再热器减温器裂纹原因分析及处理[J]. 发电技术, 2017, 38(3): 14-17,13.

CHEN Shi-ling. Reason Analysis and Treatment for Cracking in Reheater Attemperator[J]. Power Generation Technology, 2017, 38(3): 14-17,13.

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[3]	李泽, 俞旷. 某电厂锅炉末级过热器爆管原因分析[J]. 发电技术, 2017, 38(6): 50-52,49.

再热器减温器裂纹原因分析及处理

Reason Analysis and Treatment for Cracking in Reheater Attemperator

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