大型LNG储罐预冷动态模拟

doi:10.11949/j.issn.0438-1157.20150735

化工学报 ›› 2015, Vol. 66 ›› Issue (S2): 399-404.DOI: 10.11949/j.issn.0438-1157.20150735

大型LNG储罐预冷动态模拟

邓文源¹, 田连军², 童文龙², 李宁¹, 郭开华¹, 黎文锋²

1. 中山大学工学院, 广东广州 510006;
2. 广东珠海金湾液化天然气有限公司, 广东珠海 519000

收稿日期:2015-05-27 修回日期:2015-07-15 出版日期:2015-08-31 发布日期:2015-08-31
通讯作者: 郭开华
基金资助:
广东省教育厅液化天然气与低温技术重点实验室项目(39000-3211101);中山大学-BP液化天然气中心项目(99103-9390001)。

Dynamic simulation of pre-cooling processes for large-scale LNG storage tanks

DENG Wenyuan¹, TIAN Lianjun², TONG Wenlong², LI Ning¹, GUO Kaihua¹, LI Wenfeng²

1. School of Engineering, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China;
2. Guangdong Zhuhai Golden Bay LNG Ltd, Zhuhai 519000, Guangdong, China

Received:2015-05-27 Revised:2015-07-15 Online:2015-08-31 Published:2015-08-31
Supported by:
Guangdong Proviciay Education of Liquefied Natural Gas Technoloyy Key Laboratory(39000-3211101) and SYSU-BP Center for LNG Education, Training and Research(99103-9390001).

摘要/Abstract

摘要：

大型常压LNG储罐在接收站中占有很高的投资份额,是接收站关键的储存容器,在启用时对调试技术的要求较高,其中,储罐的冷却是最重要的预备环节。基于气液两相容积节点原理,建立喷淋LNG蒸发计算模型,搭建大型LNG储罐预冷过程动态仿真平台,以160000 m³大型LNG地上全容储罐为例,计算其在预冷过程中所需要的时间以及预冷所用LNG总量,得到了预冷过程中储罐压力、BOG产生量以及储罐内部温度的动态变化,为设计优化液化天然气储罐预冷策略提供了理论依据。

关键词: 液化天然气, 大型储罐, 动态模拟, 传热, 预冷, 优化

Abstract:

LNG storage tank is one of the most important and expensive devices for LNG terminals.The process of pre-cooling the LNG storage tank is the most critical and most dangerous debugging session.Based on the principle of gas-liquid two-phase volume node,the large-scale LNG storage tank pre-cooling dynamic simulation model was established.Taking a 160000 m³ LNG tank as an example,the time required for the pre-cooling process and the total used LNG for the tank pre-cooling were computed and the pressure of the LNG storage tank,the amount of BOG generation and the temperature of the tank during the pre-cooling process were determined with the established dynamic model.The optimization of the pre-cooled process design for a large-scale LNG storage tank was provided in a theoretical basis.

Key words: LNG, storage tank, dynamic simulation, heat transfer, pre-cooling process, optimization

中图分类号:

TE821

邓文源, 田连军, 童文龙, 李宁, 郭开华, 黎文锋. 大型LNG储罐预冷动态模拟[J]. 化工学报, 2015, 66(S2): 399-404.

DENG Wenyuan, TIAN Lianjun, TONG Wenlong, LI Ning, GUO Kaihua, LI Wenfeng. Dynamic simulation of pre-cooling processes for large-scale LNG storage tanks[J]. CIESC Journal, 2015, 66(S2): 399-404.

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大型LNG储罐预冷动态模拟

Dynamic simulation of pre-cooling processes for large-scale LNG storage tanks

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