双效蒸发系统深度节能工艺的探索  

Exploration of Deep Energy Saving Process for Double-Effect Evaporation System

作　　者：孟琪莉 孙冲 陈翔 寿启立 MENG Qi-li;SUN Chong;CHEN Xiang;SHOU Qi-li(Zhejiang Titan Design&Engineering Co.,Ltd.,Hangzhou,Zhejiang 310030,China)

机构地区：[1]浙江省天正设计工程有限公司,浙江杭州310030

出　　处：《浙江化工》2021年第4期42-46,共5页Zhejiang Chemical Industry

摘　　要：针对双效蒸发系统末效的二次蒸汽潜热未加以利用的问题,提出一种双效蒸发系统深度节能工艺,并对工艺的节能效果进行定量计算。结果表明,利用末效二次蒸汽作为热源加热空气和废水,再通过空气吹脱对废水进行一定程度的预浓缩,最终可节省8.58%的新鲜蒸汽用量,年节省运行成本约20万元。该工艺操作性强,经济效益好。Aiming at the problem that the latent heat of secondary steam in the final effect of double-effect evaporation system has not been utilized,a deep energy saving process for the double-effect evaporation system is proposed,and the energy saving effect of the process is quantitatively calculated.The results show that using the secondary steam as heat source to heat air and waste water,and then the waste water is pre-concentrated to a certain extent through air stripping.Finally,8.58%of fresh steam consumption can be saved and the annual operating cost can be saved about 0.2 million Yuan.The deep energy saving process excels in operability and economic benefit.

关 键 词：双效蒸发 深度节能 空气吹脱 废水浓缩 

分 类 号：X703[环境科学与工程—环境工程]