| 用蒸发气充填液化天然气球形储罐隔热层的传热计算 |
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| 引用本文： | 俞树荣,席家福,陈叔平,梁瑞,刘福录.用蒸发气充填液化天然气球形储罐隔热层的传热计算[J].兰州理工大学学报,2009,35(1). |
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| 作者姓名： | 俞树荣 席家福 陈叔平 梁瑞 刘福录 |
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| 作者单位： | 1. 兰州理工大学,石油化工学院,甘肃,兰州,730050
2. 兰州石油机械研究所,甘肃,兰州,730050 |
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| 摘 要： | 针对大型液化天然气储罐在隔热层填充N2(氮气)成本高、工艺复杂的问题,现改为用BOG(蒸发气体)代替N2填充隔热层.阐述BOG代替N2的不同及其用球形储罐储存LNG的优点.通过分析传热过程、建立传热模型,计算总漏热量和蒸发率,验证BOG代替N2在理论上的可行性.
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| 关 键 词： | 液化天然气储罐 低温储罐 热传递 蒸发率 |
Heat transfer calculation of insulation space around spherical LNG tank filled with boil-off gas |
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| YU Shu-rong,XI Jia-fu,CHEN Shu-ping,LIANG Rui,LIU Fu-lu.Heat transfer calculation of insulation space around spherical LNG tank filled with boil-off gas[J].Journal of Lanzhou University of Technology,2009,35(1). |
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| Authors: | YU Shu-rong XI Jia-fu CHEN Shu-ping LIANG Rui LIU Fu-lu |
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| Institution: | 1.College of Petrochemical Technology;Lanzhou Univ.of Tech.;Lanzhou 730050;China;2.Lanzhou Petroleum Machinery Research Institute;China |
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| Abstract: | Due to the high cost and complex technology of the N2(nitrogen)-filled insulation layer around large-scale storage tank of LNG,the boil-off gas(BOG) was substituted for N2 to fill the insulation layer.The difference between N2 and its substitute BOG as well as the merit of using BOG for storing LNG in spherical storage tank were discussed.By means of analyzing the heat transfer process,a heat transfer model was developed and the overall quantity of heat leakage and evaporation rate was evaluated.The value o... |
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| Keywords: | liquefied natural gas cryogenic storage tank heat transfer evaporation rate |
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