Water deaerator

Thermal Deaeration is a water treatment technology based on Henry’s Law. Henry’s Law states that the amount of dissolved gas within a liquid is proportional to the partial pressure of the gas in the gas phase. Dissolved oxygen and other dissolved gases can be removed from water by increasing the water temperature and the pressure and this is achieved in our Thermal Deaerator by steam injection. Babcock Wanson designs and manufactures custom Thermal Deaeration equipment to perfectly complement your installation. Thermal Degassing, by removing all kinds of dissolved gases from water, reduces the requirement for chemical treatment and thereby ensures equipment’s longevity, maintains steam quality and reduces operating costs. Pressurised Thermal Deaerator A pressurised thermal deaerator, operating at circa 0.3 barg allows the temperature of the water to be raised to around 105°C making it possible to obtain water of excellent quality with very low oxygen content (lower than 0.01 mg/l) and is used for installations which operate at high output and pressure. The design by Babcock Wanson optimises the removal of dissolved gases. A deaeration column is mounted above a storage vessel. Steam is injected into the storage vessel, maintaining the pressure and temperature of the water and rises up through the deaeration column where the large surface area allows the contact required between the incoming water and steam to drive the dissolved gases out of the water. The resulting gases along with a small quantity of carrier steam are exhausted from the top of the column.