一种自制管式蒸馏海水淡化器性能试验

Experiment of Performance of a Self-Made Tubular Distilled Desalinator for Seawater

设计制作了一种简易、可拆卸的管式蒸馏海水淡化器,理论分析了热质传递过程,并利用模拟热源对淡化器进行试验研究。试验探讨了影响淡化器性能的客观因素,如进水速度、环境温度、环境风速和输入能量等。试验结果表明:动态试验条件下,最佳进水速度为460 mL/h;环境温度降低或风速变大,淡化器的产水率增大,当风速为3.1 m/s时,产水率较无风时提高了50%;在静/动态条件下,产水率最大值均出现在85℃时,分别为228 mL/h和243.6 mL/h;定功率(200 W)加热,累计产水量为2 607.9 mL,性能系数为0.68。

A simple and dismountable tubular distilled desalinator was designed and manufactured. The heat transfer process was analyzed theoretically and the simulated heat source was used to carry out the experiment. The objective factors, such as inflow velocity of seawater, ambient temperature, ambient wind speed and input energy, were investigated experimentally. Results showed that optimum inflow velocity of seawater was 460 m L / h under dynamic experimental conditions. When the ambient temperature decreased or the wind speed became larger,the water production rate of the desalinator increased; when the wind speed was 3.1 m /s,the water yield rate increased by 50% compared with that without wind. In either static or dynamic conditions, the maximum value of water yield rate occured at 85 丈, respectively,228 m L / h and 243.6 m L /h. With constant power （ 200 W ） heating,cumulative water yield was 2 607.9 mL,and the PR was 0.68.