|本期目录/Table of Contents|

[1]王海燕 刘淼儿 杨 亮 陈 杰 许佳伟 范嘉堃.LNG低温波纹软管内流体流动特性模拟分析[J].中国海上油气,2019,31(05):183-189.[doi:10.11935/j.issn.1673-1506.2019.05.021]
 WANG Haiyan LIU Miaoer YANG Liang CHEN Jie XU Jiawei FAN Jiakun.Simulation and analysis of flow characteristics for the fluid in low-temperature LNG corrugated flexible pipe[J].China Offshore Oil and Gas,2019,31(05):183-189.[doi:10.11935/j.issn.1673-1506.2019.05.021]
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LNG低温波纹软管内流体流动特性模拟分析()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年05期
页码:
183-189
栏目:
海洋工程
出版日期:
2019-10-10

文章信息/Info

Title:
Simulation and analysis of flow characteristics for the fluid in low-temperature LNG corrugated flexible pipe
文章编号:
1673-1506(2019)05-0183-07
作者:
王海燕1 刘淼儿2 杨 亮2 陈 杰2 许佳伟2 范嘉堃2
(1. 中海油研究总院有限责任公司 北京 100028; 2. 中海石油气电集团有限责任公司技术研发中心 北京 100028)
Author(s):
WANG Haiyan1 LIU Miaoer2 YANG Liang2 CHEN Jie2 XU Jiawei2 FAN Jiakun2
(1. CNOOC Research Institute Co., Ltd., Beijing 100028, China; 2. R&D Center, CNOOC Gas & Power Group, Beijing 100028, China)
关键词:
低温波纹软管 LNG流体 数值模型 流动特性 扰动效应
Keywords:
low-temperature corrugated flexible pipe LNG fluid numerical model flow characteristics flow disturbance effect
分类号:
TE832
DOI:
10.11935/j.issn.1673-1506.2019.05.021
文献标志码:
A
摘要:
基于耐超低温波纹软管输送LNG流体的流动复杂性,以实际工程卸料系统工艺参数为基础,构建了LNG低温波纹软管内流体流动的数值模型,通过流动传热机理研究,分析了LNG流体在低温波纹软管内的流动特性。结果表明,LNG低温波纹软管进口处的波纹会引起流体壁面剪切力的变化,产生流体扰动效应; LNG流体在波纹软管进口及出口处均出现较大的压力变化,同时可引发高雷诺数下流动的流体产生气泡及管内空蚀现象,但该现象随着流体在软管内的流动趋于稳定后会逐渐消失; 流体扰动效应会导致一定的压力损失及LNG温度波动,但流体在管内的流动阻力可控,造成的热量损失基本可以忽略。本文分析结果对低温波纹软管应用于LNG卸船系统的研究具有一定的参考意义。
Abstract:
In view of the flow complexity of LNG fluid transported by ultra-low temperature corrugated flexible pipe, a numerical model for fluid flow in low-temperature LNG corrugated flexible pipe is developed based on the process parameters from off-loading system of actual engineering. According to the research of flow and heat transfer mechanism, the flow characteristics of LNG fluid in low-temperature corrugated pipe are analyzed. The results show that ripples on the inlet of corrugated pipe can cause changes of wall shear force, leading to flow disturbance effect; the pressure changes on both inlet and outlet of corrugated flexible pipe are great, which meanwhile may lead to bubbles and cavitation in pipe for the fluids with high Reynolds number, however, this phenomenon disappears as the flow in flexible pipe tends to be stable; the flow disturbance effect can cause pressure loss and LNG temperature fluctuation to some extent, but the flow resistance of fluid in pipe is controllable, and the heat loss caused can be almost neglected. The analysis results of this paper are of reference value to the research for the application of low-temperature corrugated flexible pipe in LNG off-loading system.

参考文献/References:

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备注/Memo

备注/Memo:
第一作者简介: 王海燕,女,工程师,主要从事海上油气水处理工艺研究。地址:北京市朝阳区太阳宫南街6号院中国海油大厦(邮编:100028)。E-mail:wanghy74@cnooc.com.cn。
更新日期/Last Update: 1900-01-01