What does "cycle of concentration" refer to in boiler operation?

The term "cycle of concentration" in boiler operation specifically refers to the ratio of dissolved solids in the boiler water to those in the feedwater. This concept is critically important for maintaining boiler efficiency and preventing issues such as scaling and corrosion.

In a boiler system, the feedwater enters the boiler with a certain concentration of dissolved solids. As the water is heated and converted into steam, some of the water evaporates, but the dissolved solids do not. This leads to an increasing concentration of these solids in the boiler water. By understanding the cycle of concentration, operators can manage the levels of total dissolved solids (TDS) effectively and determine when to blow down the boiler to remove excess solids. Proper management helps in prolonging the life of the boiler and ensuring optimal performance.

Understanding the cycle of concentration is vital for maintaining the chemical balance within the boiler system, allowing operators to make informed decisions about water treatment and boiler operation practices.