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冰蓄冷场合流动冰浆快速制取实验研究 预览 被引量:1

Experimental study on rapid preparation of ice storage appilications
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摘要 冰浆具有良好的导热性和流动性,在冰蓄冷场合广泛应用。采用"气体直接接触式"方法制取冰浆,通过添加预冷套、外部真空绝热保温层、多喷嘴供气等措施设计了气体直接接触式冰浆快速制取装置。首先考察了预冷套、外部真空绝热保温层、多喷嘴供气等措施对制冰速率的影响,然后分析了添加分子筛、钢珠和玻璃珠作为扰动颗粒对冰堵的影响,最后讨论了添加剂种类和浓度对冰浆质量的影响。在对多种添加剂的对照实验中得到了不同溶质对质量含冰率、制取时间、制取效率的影响,结合实验现象和所测得的实验数据,对不同溶质制得的冰浆进行了分析。通过对比各溶液的冰浆制得情况,提出提高冰浆制取效率的方法和在工业、生活实际中对不同添加剂的选取。结果得到添加剂使用醇类时效果明显好于盐类,在醇类的实验结果对比中可知添加表面活性剂的体积分数为15%的丙三醇溶液制取冰浆效果最佳。 Ice slurries have good thermal conductivity and fluidity, and hence are widely used in ice storage. In this work, a gas direct contact device was designed for rapid ice slurry preparation by using pre-cooling jacket, external vacuum insulation layer and multi-nozzle filling gas, and studied for the effects of these devices on the ice slurry production rate. The effects of the addition of molecular sieves, steel beads and glass beads as perturbation particles were then studied on the ice blockage. Finally, the effects of types and concentrations of additives on the quality of the ice slurry were discussed. By comparing the effect of each of the solutions, a method for improving the production efficiency of ice was put forward. It was showed that the use of alcohols as the additive was better than the use of salts, and, of all the alcohols studied, the use of 15% of glycerol gave the best performance.
作者 尹少武 李鸿坤 贾震雄 王立 童莉葛 YIN Slhaowu1,2, LI Hongkun1, JIA Zhenxiong1, WANG Li1, TONG Lige1,2 (1.School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083, China; 2.Key Laboratory of Energy Saving and Emission Reduction, Beijing University of Science and Technology, Beijing 100083, China)
出处 《储能科学与技术》 CAS CSCD 2017年第4期701-707,共7页
基金 国家重点研发计划项目(2016YFB0601100).
关键词 冰浆 冰蓄冷 快速制取 气体直接接触 ice slurry ice storage rapid preparation gas direct contact
作者简介 第一作者及通讯联系人:尹少武(1979-),男,副教授,主要研究方向为能源转换、储存与利用,E-mail:yinsw@ustb.edu.cn.
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