化工学报 ›› 2018, Vol. 69 ›› Issue (S2): 442-449.DOI: 10.11949/j.issn.0438-1157.20181160

• 能源和环境工程 • 上一篇    下一篇

液化天然气(LNG)的长距离输送及其冷能利用

杜旭1, 陈煜1, 巨永林2   

  1. 1 上海工程技术大学机械与汽车工程学院, 上海 201620;
    2 上海交通大学机械与动力工程学院, 上海 200240
  • 收稿日期:2018-10-08 修回日期:2018-10-13 出版日期:2018-12-31 发布日期:2018-12-31

Long-distance transportation of liquefied natural gas (LNG) and cold energy utilization

DU Xu1, CHEN Yu1, JU Yonglin2   

  1. 1 School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China;
    2 School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2018-10-08 Revised:2018-10-13 Online:2018-12-31 Published:2018-12-31

摘要:

通过Sinda/Fluint软件针对在不同保温层厚度及外界环境温度的条件,对LNG长输管道进行模拟仿真,得到了管道末端的温度及长距离输送的压力损失。模拟结果表明保温层厚度0.1 m,外界温度33.5 ℃时,−160 ℃、6.6 MPa的LNG经过12 km的长距离输送后温度升高4.068 ℃,压力损失2.52 MPa。以此为初始条件,通过HYSYS软件设计管道下游的LNG冷能利用方案,为LNG接收站12 km外的共30×104m2的低温库、常温库和高温库提供冷量。

Abstract:

The end temperatures and the pressure drop of the long-distance pipeline for the LNG transportation, at different thickness of the thermal insulation layer with different external environment temperatures, are obtained by using Sinda/Fluint software. The simulation results show that the LNG temperature increase is 4.068℃, and the pressure drop is 2.52 MPa at thickness of the thermal insulation layer of 0.1 m and the outside temperature of 33.5℃, after 12 km long distance transportation of LNG at inlet temperature of -160℃ and inlet pressure of 6.6 MPa. Taking into account of these conditions, the LNG cold energy utilization scheme at downstream of the pipeline is designed by HYSYS software, for a total cold capacity of 300000 m2 operating respectively at cold storage, normal temperature storage and high temperature storage, at around 12 km away from the LNG receiving station.

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