上海交通大学学报

上海交通大学学报（自然版）

• 石油、天然气工业 • 上一篇    下一篇

液化天然气浮式生产储卸装置低温液货卸载参数的定量分析

顾妍，巨永林   

  1. （上海交通大学 制冷与低温工程研究所， 上海 200240）

  • 收稿日期:2009-04-07 修回日期:1900-01-01 出版日期:2010-01-29 发布日期:2010-01-29

Quantitative Analysis of Main Parameters on Cryogenic LNG Offloading from LNGFPSO

GU Yan，JU Yonglin   

  1. (Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2009-04-07 Revised:1900-01-01 Online:2010-01-29 Published:2010-01-29

摘要： 基于海上液化天然气的浮式生产储卸装置，应用Aspen plus软件建立1∶1的物理及数学模型，模拟计算了其低温液货卸载的流程，结合模拟结果和动量及能量方程分析了影响海上天然气卸载的主要参数，着重研究液化天然气输送流量、管路高度差对泵压差和蒸发气体质量的影响.结果表明：随着液化天然气输送流量增加，泵压增大而蒸发气体质量先减小而后增大，并存在一个最为经济的设计流量值；管路高度差对低温软管液货卸载的影响明显.

Abstract: Based on the conceptual design of LNG offloading system for LNGFPSO (liquefied natural gas floating production storage and offloading unit), a 1∶1 model of the floating LNG offloading process from LNGFPSO to LNG carrier was established. Detailed simulations were conducted and the main parameters, in particular the influences of the flow rate and the height difference of pipeline on the pump head and BOG (boil of gas) of the LNG offloading processes were quantitatively analyzed with the Aspen plus software. The results indicate that there are the dissimilar influences of the flow rate on the pump head and BOG therefore there would be an economic flow rate for practical design. The height difference of pipeline has obvious influence on the pump head for LNGFPSO offloading.

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