热泵蒸发技术对废碱液处理的经济性研究
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摘要
针对化工和食品加工行业废碱液回收排放要求,设计了一套新型双效逆流升膜蒸发机械压缩式热泵废碱液回收系统,并给出了系统流程图.该系统以板式换热器作为蒸发器,在保证充分换热的前提下,通过对一、二效蒸发冷凝器进行热平衡计算以及对系统能效进行经济性分析,分析、比较了多效蒸发和热泵蒸发过程,从而得到系统性能指标的变化规律.结果表明:机械压缩式热泵蒸发技术的制热性能系数较高,可更好地提升节能效果,实现经济效益最大化,并对保护环境起到了至关重要的作用.
According to the demands of the waste lye recycling emissions from chemical industry and food processing,a new kind of double-effect adverse countercurrent rising film evaporator mechanical compression heat pump used in the waste lye recycling system is established.The plate heat exchanger was used as evaporator in the system,in this study,the system process is drawn.In the context of full heat,through the first and second effect evaporative condenser heat balance calculation and system economics analysis of energy efficiency,more fully to compare multi-effect evaporation with heat pump evaporation,then we know the relationships of the variation of system performance.It turned out that,the mechanical compression type heat pump has a higher thermal performance coefficient.Better to realize the energy saving effect and economic benefit maximization.For the protection of the environment have played a vital role.
According to the demands of the waste lye recycling emissions from chemical industry and food processing,a new kind of double-effect adverse countercurrent rising film evaporator mechanical compression heat pump used in the waste lye recycling system is established.The plate heat exchanger was used as evaporator in the system,in this study,the system process is drawn.In the context of full heat,through the first and second effect evaporative condenser heat balance calculation and system economics analysis of energy efficiency,more fully to compare multi-effect evaporation with heat pump evaporation,then we know the relationships of the variation of system performance.It turned out that,the mechanical compression type heat pump has a higher thermal performance coefficient.Better to realize the energy saving effect and economic benefit maximization.For the protection of the environment have played a vital role.
引文
[1]周宏春.节能减排的难点与解决之道[J].环境保护,2012(19):31-35.
[2]冯霄,运新华,郁永章.多效蒸发与热泵蒸发的分析与比较[J].化工机械,1995,22(1):52-55.
[3]王宝江,李彦兴,姚兰,等.清水配制污水稀释聚合物溶液试验研究[J].大庆石油地质与开发,2001,20(2):86-88.
[4]BORSANI R,REBAGLIATI S.Fundamentals and costing of MSF desalination plants and comparison with other technologies[J].Dealination,2005,182(36):29-37.
[5]ETTOUNEY H M,El-DESSOUKY H T,FAIBISH R R S,et al.Evaluatingthe economics of deslination[J].Chemical Engineering Progress,2002,98(32):32-39.
[6]文咏祥,马胜利.45%隔膜碱一次性浓缩为73%片碱的国产升膜技术探讨[J].氯碱工业,2003(2):32-34.
[7]曲虎,马梓涵,管善峰,等.油田采出水中溶解性气体的腐蚀与防护[J].环境科技,2011,24(2):60-69.
[8]BUONOPANE R A,TROUPE R A,MORGAN J C.Heat transfer design method for plate heat exchangers[J].Chemical Engineering Progress,1963,59(7):57-61.
[9]冯霄.压缩式热泵蒸发系统的热经济系统优化设计[C].热力学分析与节能论文集,北京:科学出版社,1993
[2]冯霄,运新华,郁永章.多效蒸发与热泵蒸发的分析与比较[J].化工机械,1995,22(1):52-55.
[3]王宝江,李彦兴,姚兰,等.清水配制污水稀释聚合物溶液试验研究[J].大庆石油地质与开发,2001,20(2):86-88.
[4]BORSANI R,REBAGLIATI S.Fundamentals and costing of MSF desalination plants and comparison with other technologies[J].Dealination,2005,182(36):29-37.
[5]ETTOUNEY H M,El-DESSOUKY H T,FAIBISH R R S,et al.Evaluatingthe economics of deslination[J].Chemical Engineering Progress,2002,98(32):32-39.
[6]文咏祥,马胜利.45%隔膜碱一次性浓缩为73%片碱的国产升膜技术探讨[J].氯碱工业,2003(2):32-34.
[7]曲虎,马梓涵,管善峰,等.油田采出水中溶解性气体的腐蚀与防护[J].环境科技,2011,24(2):60-69.
[8]BUONOPANE R A,TROUPE R A,MORGAN J C.Heat transfer design method for plate heat exchangers[J].Chemical Engineering Progress,1963,59(7):57-61.
[9]冯霄.压缩式热泵蒸发系统的热经济系统优化设计[C].热力学分析与节能论文集,北京:科学出版社,1993