U.S. Deaerator Company
Function:
The function of the U.S. Tray Deaerator is to remove dissolved oxygen, carbon dioxide and other noncondensible gases from boiler feedwater, thus preventing corrosion in piping, economizers, boilers and heat exchangers.
In addition, the deaerator heats the boiler feedwater and provides the deaerated water at saturated steam temperature to the boiler feed pumps. Deaeration is achieved by (1) heating the water to full saturation temperature at which point the solubility of any gas is zero, (2) cascading the heated water over trays to minimize the distance the liberated gas bubbles must travel to reach the surface and (3) by the scrubbing action of the counterflow steam, sweeping the liberated gases from the surface of the water and carrying them out the vent.
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