What is the purpose of the water drum in a boiler?

The primary purpose of the water drum in a boiler is to evenly distribute water to the main generating tube banks. This distribution is crucial for the efficient operation of the boiler since it ensures that all parts of the boiler receive sufficient water to produce steam effectively. By maintaining a balanced flow of water, the water drum helps to control the water levels within the boiler and supports the overall heat transfer process, enhancing the steam generation efficiency.

Each drum in a boiler system plays a vital role in water circulation and separation, which ultimately contributes to maintaining optimal pressure and temperature conditions for steam production. This is particularly important in multi-tube boilers where uniform water feed is necessary to prevent localized overheating and potential damage to the heating surfaces.