FIELD: heat- power engineering; steam drum boilers; obtaining high temperatures of superheated steam at boiler outlet required for heat treatment of members of other boilers. SUBSTANCE: bleeding the steam from steam passage is effected before convective steam superheaters and from drum in the amount of 5-90% of nominal value depending on steam temperature required at boiler outlet; pressure of superheated steam at boiler outlet is maintained between 2 and 60% of nominal value. Thus, temperature of superheated steam well above 585 C may be obtained which makes it possible to use said steam for heat treatment of members of said boiler and adjacent boilers. EFFECT: enhanced efficiency. 1 dwg
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