Tray & Spray Type Deaerator Process

Non-condensable gases such as carbon dioxide and oxygen cause corrosion in boiler cycles. In order to remove non-condensable gases from feed water within a tray type deaerator, the water needs to be heated. It is vigorously scrubbed through a counter current flow of steam. Incoming un-deaerated water enters the deaerator through its spring loaded and stainless steel spray valves. Variable orifice valves produce a fine spray.

This spray is producing a uniform patter in the shape of a five to two hundred percent design. Fine droplets of water maximize the surface area that comes into contact with the steam. The temperature is raised to within a few degrees of its saturation temperature. Thus a majority of corrosive, non- condensable gases are removed. Both preheated and partially deaerated water flows through a tray stack.

tray type deaerator

It is here where the hottest and purest steam will vigorously scrub water in order to heat it to its saturation temperature. It strips out the last traces of any dissolved gases. The deaeration process will take place in a stainless steel enclosure. This enclosure removes any need for vessel lining or cladding. Long life with little need for maintenance of the product is thus ensured. Features of the tray deaerator include a quiet operation, performance rates over wide load swings, a rugged design and durability of product.

The product has the ability to carry a capacity of up to two hundred thousand in volume per hour, with condensate taking the capacity up to 250,000 per hour. Factory owners who order pre-packed deaerators should also acquire their accessory packages in the event that parts and components do indeed need replacing. This is not to suggest that the product is at fault but consideration of the kind of materials being housed in the deaerator should also be taken into account.