What is the effect when oil mixes with water in the boiler?

When oil mixes with water in a boiler, serious foaming occurs due to the hydrophobic nature of oil. This foaming can disrupt the normal water level in the boiler, leading to unpredictable operations. Since oil tends to float on water, it creates a layer on the surface, which can trap steam bubbles and other gases. This trapped gas can produce a significant amount of foam that may rise above the normal water level in the boiler, posing risks such as carryover of water into steam lines and potential damage to equipment.

The foaming can also impede heat transfer efficiency and create instability within the boiler operation. Understanding the nature of this reaction helps in maintaining boiler safety and efficiency, highlighting the importance of proper water treatment and monitoring to prevent oil contamination.