Check out this “good read” from HPAC Magazine, Evaluating Deaerator Operation
Every boiler plant has a deaerator that generally gets little or no attention until it “burps,” jeopardizing the entire steam system. These incidents can be expensive to correct and affect the integrity of other critical auxiliary equipment as well as the careers of those charged with technical oversight of utility systems.
Deaerators are large, insulated tank-car-shaped pressure vessels. They produce preheated boiler feedwater to help ensure efficient steam plant operation. Deaerators come in numerous sizes and shapes, depending on boiler-plant design, capacity, and system pressure rating. The units are produced in spray (Figure 1), tray, spray-tray, vacuum, and atmospheric pressure designs. Read more
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