LNG接收站实际运行过程中,工艺不仅受到站内工况改变的影响,对外输条件的改变也极为敏感,不利于工况运行的稳定性。为分析外输条件变化对工艺的影响,通过HYSYS模拟,对不同外输压力、外输温度及外输量工况下的工艺运行情况进行分析,并以节约能耗为目标对工艺运行参数进行优化。根据模拟结果分析得出,针对不同工况选择合适的工艺处理方式,通过调节工艺参数,可以缓解实际运行中工况运行不稳定的问题,并有效降低工艺能耗,具有一定的经济效益和现实指导作用。

In the actual operation process of LNG receiving station, the process is not only affected by the change of working conditions in the station, but also very sensitive to the change of transportation conditions, which is not conducive to the stability of working conditions.In order to analyze the influence of the change of the transporting conditions on the process, the process operation under different transporting pressure, transporting temperature and transporting volume is analyzed by HYSYS simulation,and the process operation parameters are optimized with the goal of energy saving.According to the analysis of simulation results, it is concluded that choosing appropriate process treatment methods for different working conditions and adjusting process parameters can alleviate the problem of unstable operating conditions in actual operation and effectively reduce process energy consumption, which has certain economic benefits and practical guiding role.