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机械蒸汽再压缩(MVR)是一种新型高效节能技术,进行系统能耗及?效率模拟分析对其节能降耗具有重要意义。本研究利用Aspen HYSYS软件对中药辛弗林水提液MVR浓缩系统中不同压缩后二次蒸汽温度及蒸发温度下的能耗进行模拟,得到了压缩后二次蒸汽温度和蒸发温度对系统能耗及系统?效率的影响规律。模拟结果表明,压缩后二次蒸汽温度升高,系统能耗增加,系统?效率降低;系统能耗及系统?效率随蒸发温度的升高而升高;模拟的MVR浓缩工艺相比传统单效浓缩工艺可节能96.53%~96.81%。实际运行的MVR浓缩工艺相比传统单效浓缩工艺可节能92.96%~95.04%。较低的压缩后二次蒸汽温度和较高的蒸发温度有利于MVR浓缩系统的能量利用。
Mechanical steam recompression (MVR) is a new type of high-efficiency energy-saving technology. It is of great significance for energy-saving and energy-efficiency simulation analysis to save energy and reduce consumption. In this study, the Aspen HYSYS software was used to simulate the energy consumption of the secondary compressed steam and evaporating temperature in the synephrine water extract MVR concentration system. The effect of the secondary steam temperature and the evaporation temperature on the system energy consumption And the impact of system efficiency. The simulation results show that after the compression, the temperature of the secondary steam increases, the system energy consumption increases, the system efficiency decreases, the system energy consumption and system efficiency increase with the increase of the evaporation temperature. Compared with the conventional single-effect Concentration process can save energy 96.53% ~ 96.81%. Compared with the traditional single-effect concentrating process, the MVR concentrating process can save energy by 92.96% ~ 95.04%. The lower post-compression secondary steam temperature and the higher evaporation temperature favor the energy utilization of the MVR concentration system.