吸附作用下真空制冰特性的实验分析

doi:10.3969/j.issn.0438-1157.2014.10.050

化工学报 ›› 2014, Vol. 65 ›› Issue (10): 4131-4137.DOI: 10.3969/j.issn.0438-1157.2014.10.050

吸附作用下真空制冰特性的实验分析

章学来, 赵群志, 孟祥来, 李春蕾, 徐斌

上海海事大学冰蓄冷技术研究所, 上海 201306

收稿日期:2014-02-21 修回日期:2014-05-10 出版日期:2014-10-05 发布日期:2014-10-05
通讯作者: 赵群志
基金资助:
国家自然科学基金项目（50976064，51376115）。

Experimental analysis of ice-making characteristics with adsorption in vacuum environment

ZHANG Xuelai, ZHAO Qunzhi, MENG Xianglai, LI Chunlei, XU Bin

Institute of Cool Thermal Storage Technology, Shanghai Maritime University, Shanghai 201306, China

Received:2014-02-21 Revised:2014-05-10 Online:2014-10-05 Published:2014-10-05
Supported by:
supported by the National Natural Science Foundation of China (50976064,51376115).

摘要/Abstract

摘要： 基于水的真空闪蒸理论，设计了一种吸附作用下闪蒸制冰的实验装置。在一定的预设压力值（400、600、800 Pa）、液面高度（20～50 mm）及初始温度（32、22℃）条件下，进行了有无吸附模块的对比性实验。对实验结果进行了定性分析，结果表明：与无吸附条件相比，在吸附作用下，闪蒸室压力及液体温度下降得更快，沸石吸附模块的存在能够强化真空条件下水的闪蒸。同时分析了液面高度对闪蒸的影响，相同的初始温度、预设压力条件下，液面高度越小，吸附条件下闪蒸室的压力下降得越快。

关键词: 真空, 沸石, 吸附, 制冰, 强化

Abstract: Based on the theory of vacuum flash of water, a flash device is designed for experiment of ice-making under the condition of adsorption. Vacuum preparation of binary ice makes use of the principle of the triple point of water. However, the water flash will inevitably increase the chamber pressure and the pressure will be higher than the triple point (611 Pa). This paper proposes a method using solid adsorbent to maintain the pressure. Based on the initial establishment of a low pressure environment, the flash vapor can be adsorbed by the solid zeolite adsorbent in the closed system. Due to the experimental conditions, only the effect of adsorption modules on the flash is analyzed. At certain preset pressure (400, 600, and 800 Pa), height of liquid film (20-50 mm) and initial temperature (32℃, 22℃), comparative experiments are carried out in the presence or absence of adsorption module. The results show that the flash chamber pressure and temperature of liquid film can be reduced faster with the adsorption. With the adsorption module, vacuum flash of water can be enhanced. With smaller height of liquid film, the flash chamber pressure decreases more quickly at the same initial temperature and preset pressure.

Key words: vacuum, zeolite, adsorption, ice-making, strengthening

中图分类号:

TK02

章学来, 赵群志, 孟祥来, 李春蕾, 徐斌. 吸附作用下真空制冰特性的实验分析[J]. 化工学报, 2014, 65(10): 4131-4137.

ZHANG Xuelai, ZHAO Qunzhi, MENG Xianglai, LI Chunlei, XU Bin. Experimental analysis of ice-making characteristics with adsorption in vacuum environment[J]. CIESC Journal, 2014, 65(10): 4131-4137.

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吸附作用下真空制冰特性的实验分析

Experimental analysis of ice-making characteristics with adsorption in vacuum environment

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