过冷水制冰系统新型融冰方法的实验研究  

Experimental Research on a Novel De-Icing Method in Ice Slurry Generation System with Supercooling Water

作　　者：杨昭[1] 陈明锋[1] 陈爱强[1] 张娜[1] 赵松松[1] 

机构地区：[1]天津大学机械工程学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2016年第7期728-733,共6页Journal of Tianjin University：Science and Technology

基　　金：国家自然科学基金资助项目(51476111;51276124);教育部高等学校博士学科点专项科研基金资助项目(20130032130006)

摘　　要：针对过冷水制冰系统极易发生冰堵以及传统融冰方式效率低、能耗高等缺点,基于载冷剂管路旁通并利用热泵冷凝热作为热源,研发出一种新型高效节能的融冰方法.对新型融冰方法的融冰效率、工作性能及能耗进行了实验研究,将3种采用不同加热和循环方式的融冰方法进行实验对比分析.实验结果表明:利用热泵机组加热管道内载冷剂的新型融冰方法效果最佳,其融冰效率为47.7%,;相比电加热管路内载冷剂和热泵机组加热全部载冷剂的融冰方法,新型融冰方法的融冰时间分别缩短了72.3%,和38.1%,,复温时间分别缩短了19.2%,和61.8%,,水温波动分别减少0.47,℃和1.56,℃,融冰总能耗分别节约了37.4%,和55.7%,.nThe subcooler is extremely easy to freeze in ice slurry generation system with supercooling water,which could lead to ice blockage. To avoid the problem and overcome thedefects like high energy consumption and low efficiency of traditional de-icing technology,a novel de-icing method was investigated. The novel de-icing method was based on refrigerating medium bypass circulation and condensing heat of heat pump was used as heat source. Experiments on de-icing efficiency,operating performance and energy consumption of the novel de-icing method were conducted,and three practical de-icing methods with different heaters and air circulation modes werecomparatively studied. The experimental results show that the novel de-icing method has an efficiency of 47.7%,,which is the optimum de-icing efficiency among all three methods. Compared with the electric heat de-icing method which heats refrigerating medium of pipeline and the heat pump de-icing method which heats all refrigerating medium,the de-icing time of this novel method is shortened by 72.3%, and 38.1%, respectively,temperature recovery time is shortened by 19.2%, and 61.8%, respectively,water temperature fluctuation is decreased by 0.47,℃ and 1.56,℃ respectively,and de-icing energy consumption is reduced by 37.4%, and 55.7%, respectively.

关 键 词：过冷水 过冷器 冰堵 冷凝热 融冰方法 

分 类 号：TK02[动力工程及工程热物理]