PH note agent automatic control system

Tower of acid value control is important in the process of refining process steps, the tower of the refining units automatic control system of ammonia and pH value "is based on the production process of the refining units to establish suitable control model, automatic adjustment of oil refining device distillation tower ammonia injection rate, make the top line of pH was controlled within the expected range, and use the inductance probe corrosion monitoring technology of the real-time monitoring of production process equipment, perfect the control tower, the mathematical model of ammonia injection, make more stable production process, realize the purpose of effectively control the corrosion.

Automatic control system by pH pH note agent become loose signal acquisition device, injection agent automatic control device, injection agent traffic signal adjustment device, injection pump and monitoring machine of five parts. Through the upper machine and automatic controller control agent injection pump injection agent, keeping the pH value, to adjust pH value, keep good antiseptic effect. System adopts fuzzy PID control mathematical model, to adapt to the big lag control process, effectively overcome the large delay on the control accuracy and response time. It has the following characteristics:

Can, in the process requirement within the scope of the right pH control tower;

, with automatic manual switch and alarm functions;

Closed-loop control, the tower anticorrosive;

, fast response time.