Which type of water treatment is most effective for continuous operation boilers?

Consistent external treatment is considered the most effective method for continuous operation boilers because it ensures a steady and controlled supply of water with optimal chemical properties. Continuous operation boilers require a stable and reliable boiler water chemistry to prevent issues such as scaling, corrosion, and fouling that can significantly affect efficiency and lifespan.

When external treatment is applied consistently, it maintains proper pH levels, minimizes the presence of dissolved solids, and enhances the overall quality of the feedwater. This treatment can include processes such as ion exchange, reverse osmosis, or even filtration, which help to remove impurities that could lead to operational problems in the boiler system.

Periodic chemical dosing, while helpful, can lead to fluctuations in water chemistry, which may not address changes in water quality effectively during continuous operation. Flushing with fresh water and heat treatment are not practical long-term solutions for water quality management in continuously operating systems, as they do not provide the continuous control needed for optimal boiler operation.