What is the definition of “blowdown” in a boiler system?

The definition of "blowdown" in a boiler system refers specifically to the process of removing a portion of water from the boiler. This action is necessary to control the levels of dissolved solids or impurities that accumulate in the boiler water over time. If these impurities are not managed, they can lead to issues such as scaling or foaming, which can seriously impact the efficiency and safety of the boiler operation.

By regularly performing blowdown, operators ensure that the concentration of dissolved solids remains at an acceptable level, thereby maintaining the integrity of the boiler and ensuring optimal performance. This process is an essential practice in boiler maintenance, promoting both operational efficiency and longevity of the equipment.