多场作用下海水淡化温度响应

Temperature response of sea water desalination in multiple field

探究多场作用下海水蒸发速率的温度响应关系.实验结果表明,超声波与磁场协同作用时,海水温度55℃以下主要表现出超声波的作用效果,超过55℃磁场作用表现明显.超声波与自由表面波频率相近时发生共振,使空化作用产生的微米级液滴能够克服表面张力,从宏观上加速海水蒸发;微观上,磁场作用改变水分子及团簇的结构、盐离子的热运动,进一步改变海水黏度、扩散系数等传递特性.两者的协同作用可为海水淡化提供新的思路.

This paper conducts an investigation of the temperature response to the sea water e- vaporation rate in multiple field. The test results show that： under the synergistic field of ul- trasonic and magnetic field, when seawater temperature is below 55℃, it mainly shows the effect of ultrasonic; over 55℃, magnetic field effect is obvious. When ultrasonic and sea wa- ter capillary wave are in the same frequency, there will be a resonance phenomenon. This will make the micron droplets created by cavitation effect as overcomes the surface tension, and accelerates the evaporation of seawater from the macroscopic view. In microcosmic view, the effect of magnetic field changes the water cluster structure and thermal motion of salt i- ons, then will change the transfer character of sea water, such as viscosity, diffusivity, etc. This synergistic effect provides a new idea for the development of sea water desalination.