一种电催化反应器水力性能实验研究

Experimental study of hydraulic performance of a kind of electro-catalytic reactor

文章采用一种自行设计的分区域式电催化反应器,通过调整水力停留时间(HRT)和极板间距,分别对反应器的出水电导率和氯离子质量浓度进行测定分析,实验表明:当极间距为3 cm时E(θ)-θ曲线接近偏正态分布;当HRT为30 min时反应器的流态最平稳;在电流密度为20 mA/cm2时,极板间距为1～3 cm时E(θ)曲线的峰值与实际停留时间接近;而当极板间距固定为3 cm,HRT为30 min时的E(θ)曲线的峰值更加接近实际水力停留时间;当HRT为40 min时,水流流态更接近于完全混合。

A self-designed electro-catalytic reactor with sub-region was used for adjusting the hydraulic retention time（HRT） and the space between poles,and the water conductivity and chloride ion concentrations of the reactor were measured.The experimental results prove that at the space of 3 cm between poles,the E（θ）-θ curve is close to skewed normal distribution.When the HRT is 30 min,the flow pattern of the reactor is in the most stable state.When the space between poles is 1-3 cm and the current density is 20 mA/cm2,the E（θ） curve is close to the actual retention time.And when the plate spacing is fixed at 3 cm,the peak of the E（θ） curve is close to the actual HRT of 30 min.When the HRT is 40 min,the water is nearly totally mixed.