Flocculent precipitation occurs after dilution of corrosion and scale inhibitors for circulating water treatment, which blocks the dosing pipeline. This phenomenon did not appear in the first few months of use.
Let's make it clear first. It should be that the scale inhibitor itself contains precipitant, which leads to the precipitation of water used to dilute the drug itself. Because the box body of the metering box is small and has been working, it is impossible to precipitate in the metering box. The best method is to use pure water or water treated with sodium ion exchanger (without calcium and magnesium ions) as diluent. In this way, even if the drug and calcium and magnesium ions do not precipitate during the dilution process, solid substances will be generated and the dosing tube will be blocked. In addition, when treating circulating water, the water treatment agent containing precipitant should pay great attention to sewage discharge (discharging solid substances). If the system has a sedimentation tank or sedimentation tank, the effect will be very good. If not, it is necessary to install a vertical decontamination device (the pipe diameter is 4-6 times that of the water pipe). —— If it is really impossible to add a decontamination device, the three-opening and three-closing sewage discharge method can be adopted. -Install a drain valve on the heat exchanger. (Ordinary ball valve)
-Please check with www.water-treat.com for details.