Instructions

The whole set of ammonia dosing device is composed of solution box, mixer, metering pump, electric control cabinet, valve, pipeline, etc. It can be controlled manually or automatically. The automatic control is based on the frequency meter receiving PH or conductivity meter. Signal implementation. Function introduction of automatic control system: In the automatic control state, the system automatically adjusts the speed of the metering pump according to the PH meter or conductivity meter signal, and is processed by PLC, host computer or DCS. The metering pump flow adjustment range is 0~100%, the inverter The speed control input signal is a standard 4-20 mA signal, and the feedback signal is also a 4-20 mA signal. The status and fault signals of all metering pumps and mixers can be transmitted to the DCS or the host computer as needed. The DCS or the host computer can remotely start and stop the metering pump as needed. In addition to the manual configuration, the configuration of the ammonia solution can also be automatically configured: the system automatically adjusts the opening and closing of the water inlet solenoid valve and the liquid ammonia inlet solenoid valve according to the 4-20 mA signal output from the solution box side-mounted conductivity.

The over-current material can be made of 316 stainless steel, 304 stainless steel, carbon steel, carbon steel lining (plastic), PE, PVC, etc. according to different corrosion resistance requirements.