The unit shown in the illustration is used...

🔍 Key Concepts

• Condensate flow direction shown in the illustration and what that usually indicates about the type of heater • The presence of an attached drain cooler / auxiliary section below the main shell and how that relates to low‑pressure vs high‑pressure feed heaters • Typical services for a Butterworth heater and a flash evaporator salt water feed heater on a steam plant

💭 Think About

• Look closely at the arrows labelled condensate inlet and outlet. In a feed‑heating system, which side (shell or tubes) normally carries condensate in low‑pressure vs high‑pressure heaters? • The small vertical unit beneath the main shell cools drains coming from several heaters. Which type of feed heater is commonly combined with a drain cooler in one shell? • On your plant, where would you expect to find a Butterworth heater or a flash evaporator feed heater located, and would their drawings usually emphasize main feedwater/condensate flow the way this one does?

✅ Before You Answer

• Verify which answer choices normally handle condensate from multiple sources and include a drain cooler section. • Confirm whether a Butterworth or flash evaporator feed heater would typically be labeled with condensate inlet/outlet instead of tank‑cleaning water or seawater flow. • Check if high‑pressure feed heaters are usually drawn with this large shell diameter and attached vertical drain cooler, or if that configuration is more typical of low‑pressure units.

The unit shown in the illustration is used as the __________. Illustration SG-0025

Butterworth feed heater

combined low pressure feed heater

flash evaporator salt water feed heater

high pressure feed heater

🔍 Key Concepts

💭 Think About

✅ Before You Answer