METHOD FOR THERMAL DEAERATION OF WATER Russian patent published in 2005 - IPC

FIELD: heat power engineering, applicable at thermal power stations and boiler plants.

SUBSTANCE: heated starting water and heating agent are fed to the deaerator, deaerated water and flash steam are discharged from the deaerator, and the residual content of oxygen in the deaerated water is measured, an impulse from the deaerated water is measured, an impulse from the oxygen content transducer is transmitted to the flash steam consumption regulator, from which in turn, a control signal is transmitted to the actuating mechanism of the regulating member of consumption of flash steam. At the same time an impulse from the transducer of the residual content of carbon dioxide in the deaerated water is applied to the flash steam consumption regulator, and the flash steam consumption control is effected according to the preset value of the residual content of exhausted gas, for attaining of which a larger quantity of the flash steam is required.

EFFECT: enhanced quality and economical efficiency of thermal deaeration due the flash steam consumption control according to the preset value of the residual content of the discharged gas (oxygen O₂ or carbon dioxide CO₂).

1 dwg