Steam drum
feature of a water-tube boiler
A steam drum is a part of a water-tube boiler. It is the place where water or steam gathers at the top of the boiler. It stores the steam produced in the water tube and it separates between steam and water mixture.
![](http://up.wiki.x.io/wikipedia/commons/thumb/9/96/Water_tube_boiler-en.svg/220px-Water_tube_boiler-en.svg.png)
![](http://up.wiki.x.io/wikipedia/commons/thumb/0/01/Drax_power_station_boiler.jpg/220px-Drax_power_station_boiler.jpg)