Thermal Deaerator
I. Purpose of the Thermal Deaerator:
The thermal deaerator is a device used to remove oxygen from the boiler feedwater, protecting the boiler from oxygen corrosion.
Compared to spray tray-type thermal deaerators, the following advantages are offered:
When the same output is achieved, the membrane deoxygenator is smaller in volume and lighter in weight, reducing costs.
Wide output variation range, with stable deoxygenation efficiency.
Highly adaptable to water temperature, such as in room temperature conditions, the dissolved oxygen content in the water still meets the requirements.
Short startup to operation time.
Two, a thermal deaerator heats the boiler feed water to the saturation temperature at the corresponding deaerator working pressure, removing oxygen and other gases dissolved in the feed water, to prevent and reduce corrosion in the boiler feed water pipes, economizers, and other auxiliary equipment.
The thermal deaerator has been proven to have the following advantages after being operated and used in hundreds of power plants:
High oxygen removal efficiency.
2: Stable operation, no vibration. Even with a sudden load change of 25% and a sudden water addition change of 10%, and when the water temperature drops, the deaerator remains vibration-free and there is no boiling.
3: In addition to good adaptability, not being stringent in water quality and temperature requirements, etc., it can operate at around 50% over capacity. This is especially evident in heating units and deaerators with slide pressure operation, which showcase their superior performance.
4: Steam exhaust less than 0.1% of the inlet water volume, no additional exhaust cooler required; consumes one-third less energy compared to other types of deaerators with the same output, optimizing the equipment and reducing thermal consumption.
III. Instructions for Ordering a Spiral Membrane Oxygen Remover
1. Output requirement, along with the capacity of the matching water tank.
2. Oxygen removal unit accessories requirements.
3. Oxygenator operating pressure and temperature.
