螺旋刮削式流态冰制取性能的实验研究

doi:10.16085/j.issn.1000-6613.2017.01.008

化工进展 ›› 2017, Vol. 36 ›› Issue (01): 59-65.DOI: 10.16085/j.issn.1000-6613.2017.01.008

螺旋刮削式流态冰制取性能的实验研究

黄成, 吴昊凡, 黄河源, 夏立, 孙宁, 李学来

福州大学石油化工学院, 福建福州 350116

收稿日期:2016-06-03 修回日期:2016-06-20 出版日期:2017-01-05 发布日期:2017-01-05
通讯作者: 李学来,教授,主要从事非定常流制冷、强化传热技术、热过程装备节能技术研究。E-mail:lxl6632@sina.com。
作者简介:黄成(1991-),男,硕士研究生,研究方向为热过程装备及节能技术。
基金资助:
国家基础科学人才培养基金项目（J1103303）。

Experimental study on the ice slurry produced by spiral scraping

HUANG Cheng, WU Haofan, HUANG Heyuan, XIA Li, SUN Ning, LI Xuelai

College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350116, Fujian, China

Received:2016-06-03 Revised:2016-06-20 Online:2017-01-05 Published:2017-01-05

摘要/Abstract

摘要： 现有的流态冰制取技术受限于冰堵等问题一直难以实现大规模稳定生产流态冰。为了改进技术、改善现有设备存在的问题，本文开发了一台同时包含过冷法和壁面刮削法两种制冰过程的新型螺旋式流态冰制取装置，采用理论分析和实验研究相结合的方法，以乙二醇水溶液为制冰溶液，对该流态冰制取装置的性能进行研究。结果表明，这种流态冰制取装置是可行的。所得流态冰分布均匀，最高含冰率达13.684%，具有良好流动性，流态冰中冰晶颗粒形状一般呈现条状和扁圆状，平均冰晶颗粒面积10^-9~10^-8m²；装置产生的流态冰含冰率随时间先升后降，并将最终稳定在一个恒定值；减小制冰溶液流量、降低冷却液起始进口温度，都有助于缩短装置产生流态冰所需时间、提高产生流态冰含冰率；增大制冰溶液流量、提高刮削转速，都能促使产生的流态冰中冰晶颗粒细化减小。

关键词: 流态冰, 传热, 螺旋刮削, 结晶, 相变, 含冰率

Abstract: Constrained by technical problems such as ice barrier,the production method of ice slurry is currently difficult to guarantee the large scale steady production. In order to improve the current method and apparatus,a new dynamic ice slurry making apparatus named spiral scraping ice slurry generation was developed. It combines the supercooled ice-making method and scraping ice-making method. Taking glycol solution as the ice-making solution,the performance of the new apparatus was analyzed both theoretically and experimentally. The results showed that the new apparatus runs steadily and can be easily operated. The ice slurry as product has good flowability,with the maximum ice packing factor of 13.684%. The ice crystal particles in ice slurry distributes uniformly,and generally present as strip or oblate,with an average area of between 10^-9m² and 10^-8m². The IPF of the ice slurry would increase over time firstly and then decrease,and finally it would keep stable at a constant value. Decreasing the flow of ice-making solution or reducing the initial inlet temperature of the coolant would shorten the initiation time of apparatus producing ice slurry and increase the IPF of ice slurry. While increasing the flow of ice-making solution or accelerating the rotary speed of spiral slicker would make the ice crystal particles in ice slurry smaller.

Key words: ice slurry, heat transfer, spiral scrape, crystallization, phase change, IPF

中图分类号:

TB657.1

黄成, 吴昊凡, 黄河源, 夏立, 孙宁, 李学来. 螺旋刮削式流态冰制取性能的实验研究[J]. 化工进展, 2017, 36(01): 59-65.

HUANG Cheng, WU Haofan, HUANG Heyuan, XIA Li, SUN Ning, LI Xuelai. Experimental study on the ice slurry produced by spiral scraping[J]. Chemical Industry and Engineering Progree, 2017, 36(01): 59-65.

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螺旋刮削式流态冰制取性能的实验研究

Experimental study on the ice slurry produced by spiral scraping

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