船舶热力蒸汽压缩海水淡化装置性能分析  

Performance analysis of marine thermal vapor compression seawater desalination systems

作　　者：韩冰[1] 李艳霞[1] 武洪强 刘中良[1] 

机构地区：[1]北京工业大学北京市传热与能源利用重点实验室,北京100124

出　　处：《舰船科学技术》2014年第4期72-77,共6页Ship Science and Technology

基　　金：北京市科学技术委员会科技促进节能减排技术创新与应用示范基金资助项目(Z11110905890000)

摘　　要：介绍船舶热力蒸汽压缩海水淡化装置的工作过程,建立应用降膜蒸发技术的并流热力蒸汽压缩多效蒸发海水淡化系统数学模型,并给出相应解法。以一个淡水产量为110 kg/h的四效并流热力蒸汽压缩海水淡化装置为例,计算分析加热蒸汽温度和效数对装置性能的影响。结果表明:加热蒸汽温度提高时系统性能系数下降,传热面积和冷却水流量减少;效数增加时,系统性能系数提高,冷却水流量减少,装置传热面积增加。Marine thermal vapor compression seawater desalination system is introduced by its configuration, process and advantages. The complete mathematical model for process simulation is developed. A four-effect-parallel-flow thermal vapor compression desalination system with a distillate product flow rate of 110 kg/h is calculated to analysis the influences of the heating steam temperature and number of effects on the system performance. Results show that there is a increase of performance ratio at lower heating steam temperature, but this may result in sharp increase in heat transfer area and specific flow rate of cooling water. The most efficient way to increase the performance ratio, reduce the energy consumption and lower the operation cost is to use more effects.

关 键 词：热力蒸汽压缩 海水淡化 性能分析 

分 类 号：TQ028[化学工程]