How Standard Type Deaerators Work

There are two types of standard deaerators. The standard spray type deaerator is more economical than the standard tray type alternative. But both units, designed to manage heavy loads, offer its users quiet, hassle free and simple designs.

Non-deaerated water enters the deaerator through a spring loaded set of stainless steel spray valves. These are orifice valves, and they produce a fine spray in uniform patterns in accordance with the way they have been designed.

Droplets of water entering the system will maximize the surface area placed in contact with steam. The temperature within is raised by a few degrees to within a saturation temperature. When this happens, a majority of corrosive and non-condensable gases are released. Preheated and partially deaerated water is channeled into a collection basin. The water is channeled through a tortuous path into a second stage de-oxygenator.

The hottest and purest steam scrubs the water vigorously. The water is heated to its saturation temperature. The last traces of dissolved gases are stripped out.

Steam and non-condensable water will flow upwards into a stainless steel vent. This is a condensing area. Steam is condensed with inlet water. Gases are released into the atmosphere through this vent. All deaerated water then drops into its storage area.

spray type deaerator

Features for using standard tray or spray type deaerators include the low cost possibilities and a small area of use. Oxygen removal is minimal. But the systems have very high carrying capacities per hour of use. 

Users that require deaerating works have a few options to choose from. They have the use of a pump package. Alternative to that, they can select an accessory package. Accessory piping can also be provided. This note has been brief, but interested readers can watch online demonstrations on how these machines work.