FIELD: heat power engineering; thermal power stations.
SUBSTANCE: according to proposed method, steam generated in boiler is directed into turbine, waste steam in condensed in condenser, main condensate of turbines is delivered by condensate pumps into low-pressure regenerative heaters and further on into higher-pressure deaerator, additional feed water is deaerated in vacuum deaerator to which source water and heating agent are delivered. Heating of additional source water is provided by mixing water with condensate of regenerative low-pressure heater first in direction of main condensate flow. Control of rate of condensate of regenerative low-pressure heaters used for heating source additional feed water is carried out basing on preset value of content of dissolved oxygen in mixed flow of additional feed water and main condensate of turbine out of the limits of vacuum system of turbine plant, for instance, after low-pressure heater second in direction of main condensate flow.
EFFECT: improved economy and reliability of thermal power station.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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