Sunday 20 September 2015

Causes of foaming in boiler

1. Concentrations of soluble salts, aggravated by grease, suspended solids or organic matter, create frothy bubbles or foam in the steam space of a boiler.
2. The these bubles collapse, it creates a liquid that is carried over into the steam system. Foaming degrades steam quality and in some cases can create a water slug that is discharged into the steam lines, which causes water hammer.

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