What does a skimmer do in the steam drum?

What does a skimmer do in the steam drum?

• A. Rids condensate of suspended particles and oil
• B. Regulates steam pressure
• C. Measures condensate level
• D. Adds chemicals to condensate

Answer: (A)

A skimmer focuses on the surface layer of water in the steam drum, pulling off oil and other floating impurities that rise to the top. Oil from boiler operation or feedwater can form a slick on the water surface, and these floating contaminants can be carried into the steam and condensate system if not removed. By skimming off this surface layer, the condensate becomes cleaner and less likely to carry oil or scum into turbines and heat exchangers. This explains why removing oil and floating particles from the top of the boiler water is the primary job of a skimmer. The other functions—regulating pressure, measuring condensate level, or adding chemicals—are handled by different components.

A skimmer focuses on the surface layer of water in the steam drum, pulling off oil and other floating impurities that rise to the top. Oil from boiler operation or feedwater can form a slick on the water surface, and these floating contaminants can be carried into the steam and condensate system if not removed. By skimming off this surface layer, the condensate becomes cleaner and less likely to carry oil or scum into turbines and heat exchangers. This explains why removing oil and floating particles from the top of the boiler water is the primary job of a skimmer. The other functions—regulating pressure, measuring condensate level, or adding chemicals—are handled by different components.