双降膜螺旋板短程多效蒸发器组合探析 |
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引用本文: | 桂月明,徐其鹏,董兴海,朱家骅,徐博雅,夏素兰. 双降膜螺旋板短程多效蒸发器组合探析[J]. 化工设计, 2013, 0(3): 38-40,2 |
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作者姓名: | 桂月明 徐其鹏 董兴海 朱家骅 徐博雅 夏素兰 |
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作者单位: | 四川大学化工学院 |
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摘 要: | 为有效利用低位热能再生淡水,提出双降膜螺旋板短程多效蒸发组合技术,克服静液柱压差和二次蒸汽流动压降。50~70℃热源温度下的实验表明,在3~6℃的小传热温差范围,系统能稳定工作。3℃传热温差下,产水能力约11kg/(h·m2),实测总传热系数达2500W/(m2·K),具有工业应用前景。
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关 键 词: | 双降膜 螺旋板 低温多效蒸发 有效传热温差 |
Integrated Double Spiral Plate Falling Film Multi-Effect Evaporator with Short Path |
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Affiliation: | Gui Yueming,et al(Chemical Engineering School of Sichuan University,Chengdu 610065) |
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Abstract: | For effective use of low-grade heat energy regenerated freshwater,this paper proposes the combination technology of double spiral plate falling film multi-effect evaporation with short path to overcome the hydrostatic column pressure difference and the secondary steam flow pressure drop.The experiments under 50 ~ 70(C heat source show that the system is stable within the small heat transfer temperature difference range of 3 ~ 6(C.Under 3(C of heat transfer temperature difference,the water production capacity is approximately 11kg /(h.m 2),and the measured total heat transfer coefficient reaches 2500W /(m 2.k),which has bright prospect in industrial application. |
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Keywords: | double falling film spiral plate low temperature multi-effect evaporation effective heat transfer temperature difference |
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