The function of automatic dosing system

Thermal power plants and large-scale industrial boilers, usually to the furnace water to add a variety of appropriate agents to adjust the thermal system water vapor quality, so that the boiler feed water to maintain the appropriate PH value to ensure the safe operation of the unit, both anti-corrosion anti-scaling function. The traditional design of the dosing system are manually adjusted dosing, that is, with the metering pump to dry or continuous to the furnace dosing, according to manual test results to adjust the dosage. With the increase in boiler parameters, manual adjustment of dosage has been unable to ensure the accuracy and timely dosing. My company's automatic dosing system can be achieved automatically open the drug box solenoid valve dosing, automatic adjustment of the output flow of metering pumps, according to water quality, water changes, real-time automatic adjustment of dosage, to achieve the best treatment results. Automatic dosing system investment will completely change the previous industrial durables are not allowed to bring economic losses and save manpower, reduce consumption, ensure the safety of water, to ensure the stability of water quality, resulting in good economic and social benefits.

 

Furnace water automatic dosing system

I produced the furnace automatic dosing system is an online analyzer, PLC, inverter composed of closed-loop control automatic dosing system as shown below.

 

Through the online analyzer to get a variety of analytical data to 4 ~ 20mA standard signal output into the PLC control unit, the control system according to the user process requirements through a series of algorithm processing (PID), and then through the functional module output control signal to the electronic control Cabinet inverter, the corresponding control metering pump speed, automatic adjustment of the pool level to implement the chain, low-level automatic shutdown and alarm. According to the process parameters can automatically open the corresponding drug compartment solenoid valve dosing, when a pump failure, the standby pump automatically put into use.

 

Applicable scope

My company's automatic water supply system, including water plus ammonia, plus amine, furnace water plus phosphate, furnace water plus phosphate control, condensate and ammonia. Dosing device unit combination form depending on the size of the unit capacity, boiler configuration (two furnaces sharing a single set or single furnace sets, etc.), applicable to the thermal power plants and large industrial boilers, anti-scaling drug system control. I can also users in the original manual dosing system based on the automated transformation.