Experimental study on the effect of solenoid coil winding pipe material on electromagnetic anti-fouling effect

The purpose of the present study was to compare the different anti-fouling effects of swept electromagnetic fields on circulating water in PVC pipe and carbon steel pipe. The effects of the PVC pipe and carbon steel pipe on the effectiveness of the electromagnetic anti-fouling (EAF) technology were experimentally studied. Both pipes were the same in terms of diameter, thickness and the number of turns wounds by the coil. The water hardness is 10 mol m(-3) as CaCO3. Seven different experiments were conducted in this way: one without EAF treatment and six runs with EAF treatment, the six experiments were the hard water in the PVC pipe and carbon steel pipe under three different sweep frequencies electromagnetic field. The three different sweep frequencies were 1-3, 9-11, and 19-21 kHz respectively. The experiment results showed that the anti-fouling effect of EAF applied to PVC pipe is better than that of carbon steel pipe, and when the sweep frequency is 1-3 kHz, the anti-fouling effect is better than others in experiments, the hard water conductivity in the PVC pipe is 83.2 mu S/cm less, pH is 0.06 lower, and the average particle diameter is 0.416 mu m bigger than the carbon steel pipe; the conductivity is 196.5 mu S/cm less, pH is 0.179 lower, and the average particle diameter is 1.748 mu m bigger than the without EAF treatment, and the gap has an increasing trend.