FIELD: heating.
SUBSTANCE: boiler with circulating fluidised bed, which includes furnace particle separator for external circulation system for hot medium, and heat exchanger located in return channel provided in external circulation system for hot medium. Heat exchanger includes the first and the second heat exchange chambers connected to boiler furnace, the first inlet channel for supply of hot solid particles from particle separator of boiler external circulation system to the first heat exchange chamber which is equipped with the first solid particle flushing devices, the second inlet channel for supply of solid particles to the second heat exchange chamber which is equipped with the second solid particle fluidising devices, the first outlet device for discharging the first portion of cooled solid particles from the first heat exchange chamber to the second inlet channel, and the second outlet device for discharging cooled solid particles from the second heat exchange chamber to furnace.
EFFECT: increasing operating and control efficiency of boiler heat exchanger.
7 cl, 3 dwg
