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对一种串列式多级加热增湿除湿型太阳能海水淡化装置进行了稳态实验测试,介绍了三级装置的结构和工作过程。选用多孔球作为填充材料来提升蒸发器的传质过程。通过改变不同喷淋温度、进水流量和空气流率等控制参数,研究了不同运行参数下的系统性能。实验结果表明,在实验给定参数范围内,随着进水流量和喷淋温度的增加产水量增加。当运行温度90℃、进水流量为2 t/h,产水量达到182.47 kg/h。在运行温度达到85℃时,性能系数能达到最大值2.65。单位装置体积的产水量达到22kg/(m~3h)。单级加热的性能系数最高达2.27。通过实验发现,串列式多级加热型增除湿海水淡化技术仍有很大的提升空间。
A series of multi-stage heating humidification dehumidification desalination plant was steady-state solar desalination test, describes the structure and working process of the three-stage unit. Use porous ball as a filler material to enhance the mass transfer process of the evaporator. By changing control parameters such as different spray temperature, inflow and air flow rate, the system performance under different operating parameters was studied. The experimental results show that the water production increases with the increase of influent flow rate and spray temperature within the range of experimental parameters. When the operating temperature is 90 ℃, the inflow rate is 2 t / h and the water production reaches 182.47 kg / h. At 85 ° C operating temperature, the coefficient of performance can reach a maximum of 2.65. Unit device volume of water production reached 22kg / (m ~ 3h). Single-stage heating coefficient of performance up to 2.27. The experiment found that there is still much room for improvement in tandem multistage heating desiccant desalination technology.