| 高温高压废热锅炉设备法兰密封泄漏原因及对策 |
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| 引用本文： | 陈央,郭文元,蒋自平,费名俭.高温高压废热锅炉设备法兰密封泄漏原因及对策[J].大氮肥,2013(3):193-196. |
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| 作者姓名： | 陈央 郭文元 蒋自平 费名俭 |
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| 作者单位： | 中石化宁波工程有限公司 |
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| 摘 要： | 针对高温高压废热锅炉首次煮炉出现设备法兰密封泄漏,结合现场检测,从其采用的焊唇式密封和螺栓预紧力两方面分析,发现螺栓预紧力不足和不均匀导致密封面压紧力不够是密封泄漏的主要原因。通过修复密封,按计算螺栓预紧力合理上紧高压螺栓等措施后解决了密封泄漏问题。
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| 关 键 词： | 废热锅炉 焊唇式密封 泄漏 螺栓预紧力 |
CAUSES OF FLANGE SEAL LEAKAGE IN HIGH TEMPERATURE HIGH PRESSURE WASTE HEAT BOILER AND COUNTERMEASURES |
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| Chen Yang,Guo Wenyuan,Jiang Ziping,Fei Mingjian.CAUSES OF FLANGE SEAL LEAKAGE IN HIGH TEMPERATURE HIGH PRESSURE WASTE HEAT BOILER AND COUNTERMEASURES[J].Large Scale Nitrogenous Fertilizer Industry,2013(3):193-196. |
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| Authors: | Chen Yang Guo Wenyuan Jiang Ziping Fei Mingjian |
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| Affiliation: | (SINOPEC Ningbo Engineering Co.,Ltd.,Ningbo 315103) |
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| Abstract: | Flange seal leakage was found in high temperature high pressure waste heat boiler at its first boiling-out. We researched two suspected factors, the lip welding seal and bolt pretightening force,in connection with site inspection, and found that the insufficient and uneven bolt pretightening force was the main reason to cause insufficient seal face pressing force, and lead to seal leakage. After repairing the seal ,tightening the bolts per calculated force, seal leakage problem was solved. |
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| Keywords: | waste heat boiler lip welding seal leakage bolt pretightening force |
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