改进型多级闪蒸海水淡化系统的经济性分析  

Economic Analysis of an Improved Multi-stage Flash Desalination System for Seawater

作　　者：王金华[1] 胡党辉 严俊杰[1] 邵树峰[1] 刘继平[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049 [2]陕西银河榆林发电有限公司,西安710004

出　　处：《动力工程》2007年第1期149-152,共4页Power Engineering

基　　金：国家自然科学基金资助项目(50323001);教育部新世纪优秀人才支持计划资助项目(NCET-04-0940)

摘　　要：结合多级闪蒸海水淡化技术(MSF)和低温多效蒸馏海水淡化技术(LT-MED)的优点,提出了一种改进型多级闪蒸海水淡化系统(MSF-E),并从理论上研究了MSF-E系统的造水比、年平均淡化水成本等经济性指标。研究结果表明,与现有MSF装置相比,在引出质量份额从0增加到理论最大值0.743时,造水比可提高42.6%,同时年平均淡化水成本可下降41.3%,证明MSF-E系统有较大的实用价值和应用前景。An improved multi-stage flash desalination（MSF-E） system for seawater is being presented which combines the advantages of multi-stage flash （MSF） systems with that of low temperature multiple effect desalination （ LT-MED ） systems. Economical indexes such as the water generation ratio of MSF-E system and the annually averaged cost have been studied theoretically. Study results show that compared with existing MSF systems, the water production ratio of MSF-E system can be increased by 42.6% while the annually averaged cost of fresh water can be reduced by all. 3 % if the flash steam extraction share is increased from 0 to its theoretically maximal value of 0. 743, which shows the MSF-E system to be practicable with bright application prospects. Figs 6, table 1 and refs 6.

关 键 词：能源系统工程 发电厂 经济性分析 理论计算 改进型多级闪蒸海水淡化系统 造水比 

分 类 号：TM621.8[电气工程—电力系统及自动化]