CAUSE ANALYSIS OF SPACING TUBE BURST ON PLATEN SUPERHEATER OF ONE SUPERCRITICAL BOILER AND COUNTERMEASURES THEREOF
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CAUSE ANALYSIS OF SPACING TUBE BURST ON PLATEN SUPERHEATER OF ONE SUPERCRITICAL BOILER AND COUNTERMEASURES THEREOF
Thermal Power GenerationVol. 39, Issue 1, Pages: 58-60(2010)
作者机构:
1. 华能瑞金电厂
2. 西安热工研究院有限公司
作者简介:
基金信息:
DOI:
CLC:TK223.32
Published:2010
稿件说明:
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WEN Zhi-hua1, SHANG Hai-jun2, YANG Hang-bing11.Huaneng Reijin Power Plant. CAUSE ANALYSIS OF SPACING TUBE BURST ON PLATEN SUPERHEATER OF ONE SUPERCRITICAL BOILER AND COUNTERMEASURES THEREOF[J]. Thermal power generation, 2010, 39(1): 58-60.
DOI:
WEN Zhi-hua1, SHANG Hai-jun2, YANG Hang-bing11.Huaneng Reijin Power Plant. CAUSE ANALYSIS OF SPACING TUBE BURST ON PLATEN SUPERHEATER OF ONE SUPERCRITICAL BOILER AND COUNTERMEASURES THEREOF[J]. Thermal power generation, 2010, 39(1): 58-60.DOI:
CAUSE ANALYSIS OF SPACING TUBE BURST ON PLATEN SUPERHEATER OF ONE SUPERCRITICAL BOILER AND COUNTERMEASURES THEREOF
摘要
华能瑞金电厂新建1号超临界350 MW机组锅炉屏式过热器间隔管两次爆管
分析认为主要原因是间隔管在末级过热器出口汇集集箱上的2个接管未开孔
致使管内蒸汽流动不畅
造成管子短时超温所致。对此
提出了对集箱、管子内部清洁度进行检查
运行中密切监测、防止超温等措施
实施后效果良好
有效地控制了爆管的再次发生。
Abstract
The spacing tube burst had occurred two times on platen superheater of supercritical boiler no.1 newly constructed in Huaneng Reijin Power Plant.It is believed from analysis that the main causo was the two spacing tubes connected to the final-stage superheater's outlet heater hadn't cutout to make opening
resulting in unsmooth flow of steam and short-time overtemperature of the tubes.For this
some measures
such as insepecting cleanness in headers and tubes
closely monitoring in operation
preventing overtemperature of the tubes etc.
have been put forward.After adaptation
the result is good
the occurrence of similar tube burst being effectively controlled.