PELLET-FIRED BOILER WITH ROTARY TYPE REGNERATION HEATER Russian patent published in 2017 - IPC F23C10/04 

FIELD: heating.

SUBSTANCE: pellet-fired boiler with rotary type regenerative heater comprises a furnace; a rotary type regenerative heater comprising: a main body of a heat exchanger; drive means for imparting rotation of the heat exchanger main body around its central axis; a separating element mounted in the heat exchanger main body along the central axis, dividing the heat exchanger main body by at least one pair of receiving chambers. Each pair of receiving chambers is situated diametrically opposite with respect to the central axis; heat-carrying medium received in the receiving chambers, respectively, made of non-metallic solid material, wherein the flue gas has a temperature of 65-75 deg. C after heat exchange with the help of rotary type regenerative heater; a furnace gas pipeline with an input connected to the upper part of the furnace, and an output connected to a rotary type regenerative heater, to supply the furnace gas to at least one receiving chamber of coupled receiving chambers and exchange heat with heat-carrying medium placed therein; and an air outlet port for supplying air to the other receiving chamber of coupled receiving chambers so that the heat-carrying medium placed therein exchange heat with the air, and after the exchange the air is supplied to the furnace.

EFFECT: increased efficiency of residual heat recycling.

9 cl, 2 dwg