FIELD: power engineering.
SUBSTANCE: circuit comprises down-take pipe (26) and multiple horizontal inlet headers (30), having length equal to length of front wall (14) of vessel furnace, arranged under vessel furnace and panel (18) of steam-generating tubes (16) in front wall (14) and back wall, extension pieces of steam-generating tubes of front wall (14) and back wall connected directly to inlet headers. Besides each inlet header communicates along flow with down-take pipe (26) only by means of inlet nozzle (28), which is connected to the end of inlet header. Inlet headers comprise inlet header of front wall arranged under front wall (14) pf furnace, and inlet header of back wall arranged under back wall of furnace, and at least one inlet header of furnace grid under central part of furnace grid inside air chamber of vessel with fluidised bed.
EFFECT: invention provides a simple and reliable feed water circuit for the vessel.
11 cl, 3 dwg
