The whole set of dosing device is manufactured. The dosing device can be designed and equipped with necessary components according to the requirements of different technological processes of users, so as to realize automatic remote control and other functions. The automatic control system is generally composed of PLC, frequency converter, touch screen and other components. According to the pH meter signal, the pH value can be stably controlled after PID operation. Each type of dosing device is equipped with mixing system, dosing system and automatic control system.
Several fixed skids can be combined into a whole. With the frequency conversion control system, local control, remote automatic control, manual and automatic conversion dosing can be realized. The device has the advantages of compact structure, small volume, low noise, stable operation, simple installation and convenient operation. Dosing device is also called dosing system and dosing equipment. The dosing device is a complete set of device that injects chemical liquid into various systems according to the process flow.
The complete set of dosing device is a manufacturer, which can be divided into major categories according to the application situation. Automatic dosing equipment, using time program control, this control mode does not need the support of the instrument, first of all, according to the operation of the system needs to set the automatic dosing cycle, dosage, dosing time and dosing frequency. In the later system operation process, to the dosing cycle, the metering pump automatically turns on the dosing, to the specified time, the metering pump turns off; to the blowdown cycle, the metering pump stops dosing.
After the discharge reaches the specified time, the metering pump will continue to start, replenish the lost agent, maintain the drug content of the system at the normal level, and close the metering pump after the specified time. Automatic dosing system is a complete set of equipment with dosing, mixing, liquid transportation and automatic control. It is widely used in power plant raw water, boiler water supply, oilfield surface gathering and transportation dehydration treatment system, papermaking, chemical industry, water supply and drainage dosing system and wastewater treatment system.
Such as adding coagulant, phosphate, ammonia solution, lime water, corrosion inhibitor, scale inhibitor, bactericide and algaecide, etc. The automatic dosing device is mainly composed of solution tank, agitator, metering pump, liquid level meter, electric control cabinet, pipeline, valve, safety valve, back pressure valve, check valve, pulsation damper, pressure gauge, Y-type filter, etc.