Fouling and scaling are common problems encountered in boilers and pipework systems, particularly in industrial settings. Fouling in boilers and pipework refers to the accumulation of unwanted deposits on the internal surfaces of boilers and pipework.
The deposits can consist of various substances, such as sediment, minerals, corrosion products, organic matter, and biological material. Fouling reduces the efficiency of heat transfer and fluid flow, leading to increased energy consumption, decreased system performance, and potential equipment damage. It can also create an environment for microbiological growth and contribute to corrosion.
The water flowing through boilers and pipework may contain dissolved minerals such as calcium, magnesium, and silica. Scaling occurs when these minerals precipitate and form solid deposits on the surfaces inside boilers and pipes.
These deposits act as an insulating layer, reducing heat transfer efficiency and restricting fluid flow. In turn, this can lead to overheating, increased pressure drop, reduced system capacity, and potential equipment failure.
Factors contributing to fouling and scaling in boilers and pipework include:
The quality of the water used in boilers and pipework systems is a crucial factor. Water containing high concentrations of dissolved minerals, suspended solids, organic matter, and bacteria promotes fouling and scaling.