The term "drum" in boiler terminology refers to which pressure container?

In boiler terminology, the term "drum" specifically refers to the "shell" of the boiler. The shell is a cylindrical pressure vessel that contains water and steam under pressure, functioning as an essential component of the boiler system. It serves to provide space for the production of steam and allows for the separation of steam from the water.

The construction of the shell is vital in maintaining the structural integrity of the boiler, as it needs to withstand high pressures and temperatures during operation. Understanding the role of the shell helps in comprehending how boilers operate efficiently and safely.

While other terms such as "cylinder," "tank," and "vessel" can refer to various types of containers used in different contexts, in the specific terminology of boiler systems, the term "drum" is most accurately associated with the shell due to its particular design and function in managing pressures within the system.