ZHANG Jiwen, YUAN Yanming, LIAO Weihui Shanwei Power Plant. CAUSE ANALYSIS OF TUBE-BURST ON HIGH-TEMPERATURE SUPERHEATER OF BOILER EQUIPPED FOR 600 MW UNITS AND PREVENTIVE MEASURES THEREOF[J]. Thermal power generation, 2010, 39(6): 85-87.
ZHANG Jiwen, YUAN Yanming, LIAO Weihui Shanwei Power Plant. CAUSE ANALYSIS OF TUBE-BURST ON HIGH-TEMPERATURE SUPERHEATER OF BOILER EQUIPPED FOR 600 MW UNITS AND PREVENTIVE MEASURES THEREOF[J]. Thermal power generation, 2010, 39(6): 85-87.DOI:
超临界600MW机组锅炉高温过热器爆管原因分析及预防措施
摘要
针对汕尾电厂1号超临界600 MW机组高温过热器爆管事故进行了试验分析。结果表明
爆管原因是高温过热器长期超温过热。对此
提出了严格控制汽温和金属壁温
避免运行工况大幅变化
用更高等级钢种代替TP347H的预防措施。
Abstract
Directing against the tube-burst accidents occurred on high-temperature superheater of unit no.1 in Shanwei Power Plant
test and analysis have been carried out.Results show that the cause resulting in tube-burst is long-term over-temperature and excess heating.For this
preventive measures
such as strictly controlling the steam temperature and the metallic wall temperature
avoiding large variation of the operating condition
and using steel sort of more higher level to replace the TP347H steel