塔式蒸发分离电镀废水结晶系统性能分析

发布时间：2018-01-11 04:32

  本文关键词：塔式蒸发分离电镀废水结晶系统性能分析　出处：《科学技术与工程》2016年29期 　论文类型：期刊论文

  更多相关文章： 蒸发分离 数值模拟 传热 传质 废水处理

【摘要】：基于增湿-除湿原理,设计了一种新型蒸发分离电镀废水结晶系统;该系统包含蒸发分离器、结晶处理器、溶液和空气处理段。该系统可与热泵系统耦合,实现盐溶液低能耗、零排放的环保处理。构建了蒸发分离器的数学模型,获得各进口参数对蒸发分离器传热传质性能的影响。结果表明:当空气进口含湿量从5.79 g·kg-1上升到13.19 g·kg-1,潜热换热量从4.4 k W减小到3.9 k W;当溶液进口温度从45℃上升到70℃,潜热换热量增加3.7 k W。通过提高风量、溶液流量、溶液入口温度,或者降低进口空气含湿量,可以有效增加蒸发分离器的潜热换热量,从而使系统高效运行。
[Abstract]:Based on the principle of humidification and dehumidification, a new crystallization system for electroplating wastewater was designed. The system includes evaporator, crystal processor, solution and air treatment section. The system can be coupled with heat pump system to achieve low energy consumption of salt solution, zero emission environmental treatment. The mathematical model of evaporator is constructed. The influence of the inlet parameters on the heat and mass transfer performance of the evaporator was obtained. The results showed that the moisture content of the air inlet increased from 5.79 g 路kg-1 to 13.19 g 路kg-1. The latent heat transfer decreases from 4.4 kW to 3.9 kW; When the inlet temperature of the solution rises from 45 鈩，

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