| 油罐凹瘪原因分析 |
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| 引用本文： | 范继义.油罐凹瘪原因分析[J].油气储运,1996,15(7):44-46. |
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| 作者姓名： | 范继义 |
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| 作者单位： | 中国人民解放军兰州军区后勤部油料技术监督站 |
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| 摘 要： | 分析了油罐在运行中发生凹瘪的原因，结果表明，油罐负压超限是导致其凹瘪的主要原因，列举了引起油罐负压超限的各种因素，其中机械呼吸阀反映的问题有，安装精度未达到要求，日常维护方式不当，被空气和油蒸气腐蚀后运动阻力增大等。
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| 关 键 词： | 油罐 事故 原因 |
Analysis on Collapse of Oil Tank |
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| Fan Jiyi..Analysis on Collapse of Oil Tank[J].Oil & Gas Storage and Transportation,1996,15(7):44-46. |
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| Authors: | Fan Jiyi |
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| Abstract: | The causes of collapse of oil tanks are analyzed, and the analyitical results show that the excessive subatmospheric pressure is the main cause for collapse of oil tanks. The various factors inducing excessive subatmospheric pressure cited in the paper are as follows; for the mechanical breather valve-unqualified installation accuracy, improper routine maintenance, increamental resistance of motion induced by air/oil vapour corrosion; for the other causes-unmatchable breathing volume and inlet/outlet oil volume after tank modification, and the extreme rise of subatmospheiuc pressure caused by insufficient filling air due to sudden change of weather and air contract. These factors resulting from impeded breathing and blocking of breathing system are the direct causes for the collapse of oil tanks. Four collapse cases induced by a sudden change of temperature are given, and the peculiar factors of collapse for underground storage caven introduced. It is considered that the collapse accidents are basically induced by maloperation, and that the acci-. dents will be avoid provided the standards and regulations concerned be carried out strictly. |
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| Keywords: | oil tank accident cause analysis |
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