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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