槽式集热器与燃气锅炉联合驱动的双效型溶液再生系统.pdfVIP

学兔兔 化 工 进 展 2009年第28卷第9期 CHEMICAL INDUSTRY AND ENGINEERING PROGRESS ·1559· 槽式集热器与燃气锅炉联合驱动的双效型溶液再生系统 左远志1,2杨晓西2 丁 静 ( 东莞理工学院东莞分布式能源系统研究中心，广东 东莞 523808； 华南理工大学传热强化与过程节能教育部 重点实验室，广东 广州 510640) 摘 要：提出了一种太阳能槽式集热器与燃气锅炉联合驱动来实现沸腾蒸发式再生与非沸腾蒸发式再生的双效型 溶液再生系统。采用集总参数法建立了填料塔再生的稳态传热传质简化数学模型，分析了两种进口务件对其再生 性能的影响。结果表明：填料塔采用冷空气再生高温稀溶液进口条件的再生效果优于采用热空气再生低温稀溶液， 这为该流程设计提供了依据。该双效再生方法能使系统稳定运行、保证溶液再生浓度以及提高能源利用率。 关键词：槽式太阳能；溶液除湿空调；溶液再生；沸腾式再生；填料塔 中图分类号：TK511 _3 文献标识码：A 文章编号：1000—6613(2009)09—1559—04 A double·effect liquid desiccant dehumidifier driven by hybrid solar-trough／gas—boiler ZUO Yuanzhi ，一，YANG Xiaoxi ，DING Jing ( Dongguan Research Center ofDistributed Energy System，Dongguan University ofTechnology，Dongguan 523808， Guangdong，China； Key Laboratory of Enhanced Heat Transfer and Energy Conservation of MOE，South China University ofTechnology，Guangzhou 510640，Guangdong，China) Abstract：The design and operating principle of a double-effect liquid desiccant dehumidifier driven by hybrid solar-trough／gas—boiler are presented，where the weak desiccant is concentrated by boiling and non—boiling evaporation．Then a stable heat and mass transfer mathematical model for the packed—type dehumidifier is developed by the lumped parameter method and a comparative analysis of its regenerating performance under two different inlet conditions is conducted．The regenerating performance under the inlet condition of adopting cold air to condense the high—temperature weak solution is better than that of adopting