摘要
分析、比较、归纳出现有海水淡化方法中,多级闪蒸法和多效蒸馏法在开路热焓过程中,有二次蒸汽的凝结潜热损失问题、蒸馏法的结垢与腐蚀问题、反渗透法的海水前处理与产品水质不稳定问题。进而综合其优点,首次提出:由热功效率最高的压汽法,来驱动产品水质最好的闪蒸法,这样一种全新、最优、集成的压汽闪蒸法海水淡化工艺,兼具投资成本最低、独立闪蒸操作、模块化组合生产等技术优势。由于集成技术成熟而全面,装置运行安全而可靠,必将以卓越的技术性、经济性,逐步取代现有各种方法,统一海水淡化市场,引导海水淡化技术发展。
Analyzed,compared and summed up were the following problems in an open heat enthalpy process among the currently available seawater desalination methods,including the multistage flash evaporation method and multi-effective distillation one.The problems are: condensate latent heat loss of the secondary steam,fouling and corrosion of the distillation method,seawater pretreatment and unstable water quality of its product when a reverse osmosis method is adopted.Summing up all the merits of the methods under discussion,the authors have presented for the first time the flash evaporation method with the highest thermal efficiency to attain the best water quality of its product.Such a wholly new,optimum and integral pressurized-steam and seawater desalination process features low investment cost,and an independent flash evaporation operation coupled with a modularized combination production and other technical advantages.Due to the proven and comprehensive integration technology and the plant safe and reliable operation,the method in question will certainly replace the various currently available methods step by step with its excellent technology and cost-effectiveness,unifying the seawater desalination markets and initiating the further development of seawater desalination technologies.
出处
《热能动力工程》
CAS
CSCD
北大核心
2009年第5期554-559,677,共6页
Journal of Engineering for Thermal Energy and Power
关键词
压汽
闪蒸
海水淡化
装置
pressurized steam,flash evaporation,seawater desalination,plant
