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

FIELD: thermal engineering; thermal power stations and boiler plants.

SUBSTANCE: proposed method includes source water and heating agent supply to deaerator, outlet of deaerated water and vented steam from the latter, measurement of residual oxygen content in deaerated water, transfer of pulse from oxygen content sensor to heating agent flow regulator wherefrom control signal is fed in its turn to actuating mechanism of heating agent regulating element. At the same time heating agent flow regulation pulse is supplied with pulse from sensor of residual carbon dioxide content in deaerated water, and heating agent flowrate is regulated with respect to desired value of residual content of gas being evacuated (oxygen O₂ or carbon dioxide CO₂) which can be attained by using greater amount of heating agent.

EFFECT: enhanced quality and economic efficiency of deaeration process.

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