Class “S” Spray/Scrubber Type Deaerators

Description

The spray or spray/scrubber deaerator has a wide product range from 3,500 #/hr to 500,000 #/hr and higher. It is best used for fairly stable loads and constant water inlet temperatures. It is the most economically priced unit in the 7,000 #/hr and higher flow range.

In the spray type unit, water is sprayed into a pressurized steam atmosphere (first stage deaeration) in order to preheat and partially deaerate the incoming water. The water is then directed to the scrubber (second stage deaeration), where the water is violently scrubbed to remove the final traces of oxygen. The steam acts as a carrier gas, to expel the removed oxygen out the deaerator vent. The deaerated water is then ready for use by the boiler, at saturated temperature and with oxygen levels at .005 cc/liter.

Customization of the spray type deaerator is available in any configuration including:

• Vertical orientation
• Dual compartment (deaerator with an attached surge tank)
• Single skid deaerator/surge packages in over/under or end-to-end arrangements