Which element contains level controls that operate the make up and drum valves to maintain the proper feedwater levels?

Which element contains level controls that operate the make up and drum valves to maintain the proper feedwater levels?

• A. The Deaerating Feed Tank (DFT)
• B. The EOCC
• C. The Main Condenser
• D. The Distilling Plant

Answer: (A)

Level control for maintaining proper feedwater levels is housed in the Deaerating Feed Tank. This tank holds deaerated water at a controlled level and feeds the boiler through the feedwater regulator. When the tank level drops, the makeup valve opens to add water; as the level is restored, the regulator modulates the drum feedwater valve to keep the boiler drum level stable. By keeping the Deaerating Feed Tank at the right level, the system can reliably supply the boiler with the correct amount of feedwater and maintain drum levels. The other components don’t manage both makeup and drum valve control in this way.

Level control for maintaining proper feedwater levels is housed in the Deaerating Feed Tank. This tank holds deaerated water at a controlled level and feeds the boiler through the feedwater regulator. When the tank level drops, the makeup valve opens to add water; as the level is restored, the regulator modulates the drum feedwater valve to keep the boiler drum level stable. By keeping the Deaerating Feed Tank at the right level, the system can reliably supply the boiler with the correct amount of feedwater and maintain drum levels. The other components don’t manage both makeup and drum valve control in this way.