Veda Bites are swipeable micro-lessons — each one teaches exactly one
idea. Here's a taste from this kit; the app has the full deck.
💡 Key Idea
Cochran Boiler: A Compact Fire-Tube Boiler
Small, vertical, and internally fired.
The Cochran boiler is a *vertical, multi-tubular, fire-tube boiler* with a firebox located internally at the bottom. It is one of the most popular package boilers for small steam generation. The hot gases from the firebox pass through a series of fire tubes surrounded by water, transferring heat to…
↳ Cochran boiler is a compact, vertical fire-tube boiler with an internal furnace.
💡 Diagram
Easy Diagram of Cochran Boiler
Visualize the main parts at a glance.
The diagram shows the main components: the shell, firebox, grate, fire tubes, chimney, manhole, and mountings. The firebox is at the bottom, the shell is vertical, and the fire tubes are arranged around the central flue.
↳ The diagram shows a vertical shell with an internal firebox and fire tubes.
💡 Key Idea
The Shell: Outer Container
The boiler's main body.
The shell is a vertical cylindrical drum made of steel plates. It is hemispherical at the top to withstand high steam pressure. The shell holds water and steam; the water level is maintained above the fire tubes. It also supports all internal parts and mountings.
↳ The shell is the vertical pressure vessel that holds water and steam.