The Rotating Film Deaerator is a replacement product for the Spray Filling Deaerator, and it is a new type of thermal deaerator produced. The principle of the Rotating Film Deaerator is to spray water through a film-forming tube in a spiral pattern at a certain angle for heat exchange and deaeration with the heated steam. It heats the water to the saturation temperature under the working pressure of the deaerator, removing the dissolved oxygen and other gases in the feed water, and preventing and reducing corrosion in the boiler feed water pipes, economizers, and other auxiliary equipment.
1. Application: The deaerator is one of the key equipment in the boiler heating system, protecting the oxygen corrosion of the boiler feedwater pipes, economizers, and other auxiliary equipment.
2. Benefits: The spiral membrane oxygen removal unit has high oxygen removal efficiency and low gas consumption, with a 100% qualification rate for the oxygen content in the water after removal.
Deaerators are one of the key equipment in boilers and heating systems. If the deaeration capacity of a deaerator is poor, it can cause severe corrosion to the boiler's feedwater pipes, economizers, and other auxiliary equipment. The economic loss caused by this can be several or even hundreds of times the cost of the deaerator itself. Therefore, the National Power Department has established some standards for the oxygen content of deaerators, specifying that the oxygen content of the feedwater for atmospheric deaerators should be less than 15 mg/L, and for pressure deaerators, less than 7 mg/L.
Oxygen Removal Principle, Gay-Lussac's Law
At constant pressure, for a fixed mass of gas, an increase of temperature by 1°C is accompanied by a volume increase equal to one-twenty-seventh of its volume at 0°C; or the volume of a fixed mass of gas is proportional to its thermodynamic temperature at constant pressure. This principle was discovered in an experiment by the French scientist Gay-Lussac and is named after him. It applies to ideal gases and is also approximately valid for real gases under high temperatures and low pressures.
Henry's Law states that at a given temperature and when the total pressure of the gas phase is not high, for dilute solutions, the concentration of the solute in the solution is directly proportional to its partial pressure in the gas phase. Dalton's Law of Partial Pressures states that at constant temperature and volume, the total pressure of a mixture of gases is equal to the sum of the partial pressures of the individual components, and the partial pressure of each component gas is equal to the pressure it would exert if it alone occupied the total volume.
