Operating & Control Philosophies
Operating & Control Philosophies
(OP)
Hello
I am head over heals in the design of a water treatment plant (Conceptual design), Once the P&ID is approved, which it is, I am finding a hard time elaborating a document describing the P&ID, for those who doesn't understand it, as well as document to explain how the Instruments actually works and respond one to the other. I am new to this, So if you could help in any way, I will be really grateful.
I am head over heals in the design of a water treatment plant (Conceptual design), Once the P&ID is approved, which it is, I am finding a hard time elaborating a document describing the P&ID, for those who doesn't understand it, as well as document to explain how the Instruments actually works and respond one to the other. I am new to this, So if you could help in any way, I will be really grateful.
RE: Operating & Control Philosophies
RE: Operating & Control Philosophies
I do not have any knowledge on how to elaborate them, this is a first for me,
I am improvising, so, any recommendation will be helpful at this stage.
RE: Operating & Control Philosophies
"In the DO Setpoint Mode the operator shall enter a dissolved oxygen setpoint for each oxic zone. Upon receiving DO setpoints from the HMI, PLC-B will execute a PLC PID loop to compare each oxic zone DO measurement with the DO setpoint. PLC-B will then modulate the air control valve to each oxic zone in order to match the DO setpoint using most open valve logic. The re-aeration zone (Oxic Zone 11 / OX-11) will be controlled to maintain an operator adjustable constant airflow. PLC-B shall compare the airflow entering OX-11 and modulate the zone 11 control valve accordingly to meet the setpoint."