METHOD OF THERMAL WATER DEAERATION Russian patent published in 2004 - IPC

FIELD: water de-aeration equipment, particularly for boiler plants. SUBSTANCE: method of water de-aeration into vacuum de-aerator involves supplying initial water and heating agent into de-aerator; maintaining desired carbon dioxide concentration in de-aerated replenishment water by sequential regulation of initial water temperature and heating agent flow rate, that is preliminary increasing initial water temperature and then, if necessary, increasing heating agent flow rate when carbon dioxide concentration increases in comparison with desired concentration; primarily decreasing heating agent flow rate and then decreasing initial water temperature when carbon dioxide concentration decreases in comparison with desired concentration. EFFECT: improved economy and reliability of boiler plant. 1 dwg