Why does a vacuum deaerator need to supply water for deoxygenation?

Necessity: Hazards of dissolved gases in the water supply of vacuum deaerator: Corrosion of metal equipment and reduction of its service life; Increase heat transfer resistance and reduce heat transfer efficiency.

The task of deoxygenation in water supply mainly includes removing non condensable gases from water, preventing equipment corrosion and heat transfer deterioration.

Specific methods: Thermal deoxygenation and chemical deoxygenation.

The main source of dissolved oxygen in the feedwater of the deaerator is brought in by chemical makeup water; The condenser, some low-pressure heaters and other thermal equipment and pipeline accessories working under vacuum are not tight and leak air.