LNG开架式海水气化器强化传热过程数值模拟

摘要

The heat exchange progress for rib-tube of open rack vaporizer (ORV)was studied. Using ANSYS software,the modal of extruded rib-tube was built and its in-and-out temperature was solved.According to its structure and temperature distribution,the heat character of the rib-tube is obtained with the one-dimensional pipe flow theory.The results show that the parameters of LNG velocity,sea temperature and so on have important influence on the heat exchange pro-gress.%研究了195 t/h 开架式海水气化器翅片管的换热过程。利用 ANSYS 软件建立了挤压式翅片管模型并求解内外表面温度，针对翅片管的结构及温度载荷特点，采用一维管流理论，分析计算了翅片管内外传热过程，给出了其传热系数随管内 LNG 流速、管外海水温度等变化的特性曲线。结果表明，LNG 的流速及海水温度对翅片管的传热过程有显著影响。