LNG低温管道预冷及热应力分析
Analysis on the Pre-Cooling and the Thermal Stress Distribution of the LNG Low-Temperature Pipe
摘要: LNG低温管道预冷是LNG工程投产试运行的难点,采用FLUENT软件对Φ 630 × 10 mm低温管道进行BOG气体预冷工艺模拟,在0.2 m/s、0.5 m/s、1 m/s流速下,获得了BOG预冷过程的管道温度变化规律,以及低温管道在预冷过程中的实时温度显示。导出温度数据在ANSYS软件进行热应力分析,总结出低温管道预冷规律。
Abstract:
The pre-cooling of LNG low-temperature pipe is a difficult point of completion and commissioning of LNG project. Under the flow rate of 0.2 m/s, 0.5 m/s and 1 m/s, FLUENT software is used to conduct simulation of BOG gas pre-cooling technology for Φ 630 × 10 mm low-temperature pipe to obtain temperature change regularity of pipe during BOG pre-cooling process and real-time display of temperature of low-temperature pipe during pre-cooling process. The temperature data are extracted into ANSYS software to calculate the thermal-stress and to formulate the pre-cooling plan of the low temperature pipe.
参考文献
[1]
|
卢超, 耑锐, 易冲冲, 王文, 吕俊, 王蕾. BOG气体对LNG输送管道预冷过程的数值模拟[J]. 低温工程, 2012(6): 51-56.
|
[2]
|
严俊伟, 李兆慈, 赵多. LNG低温管道预冷过程数值模拟[J]. 低温与超导, 2014(9): 10-14.
|
[3]
|
余红梅,李兆慈, 孙恒. 水平管道预冷过程研究[J]. 低温与特气, 2009(6): 16-21.
|
[4]
|
童清福. 液化天然气低温管道安装技术[J]. 城市燃气, 2014(5): 14-16.
|