METHOD OF VACUUM DEAERATION OF MAKE-UP WATER OF HEATING NETWORK AT THERMAL POWER PLANT Russian patent published in 2012 - IPC C02F1/20 F01K17/02 

FIELD: power industry.

SUBSTANCE: method involves heating of source water to 35÷50°C in surface heater, which is deaerated in vacuum; for that purpose, superheated delivery water is supplied to vacuum deaerator as heating medium, deaerated make-up water with temperature of 50÷60°C is removed from vacuum deaerator to storage tank and then to return pipeline of the heating network. Source water is heated in two stages: at the first stage, the source water is heated up to 30÷35°C in surface heater of source water of the first stage with deaerated make-up water, which is supplied after the heater to return pipeline of heating network with temperature of 30÷45°C, and at the second stage, the heating up to 35÷50°C is performed in surface heater of the second stage with superheated delivery water, which is supplied after heater of the second stage to pipeline of deaerated make-up water before the first stage heater.

EFFECT: invention allows increasing the electric energy yield on heat consumption due to refusing to use as heating medium for heating of source water prior to vacuum deaeration of high potential steam.

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