WATER-HEATING SOLID-FUEL BOILER Russian patent published in 2014 - IPC F24H1/12 

FIELD: power engineering.

SUBSTANCE: chamber of afterburning of combustible gases is installed downstream a loading hopper for fuel and is separated from a loading hopper by a vertical partition with a throughput hole in the lower part of the partition. The specified boiler comprises a mechanism of air supply into the loading hopper for fuel, a throughput channel for smoke gases, a gate valve for smoke gases overflow, a heat exchanger in the form of a reservoir, adjoining external surfaces of the loading hopper for fuel and an afterburning chamber for combustible gases. The throughput hole is arranged at a certain distance from the level of a fire grate, making it possible to perform a thermochemical reaction to combine air oxygen with fuel carbon in a layer of wood coal. The heat exchanger is made as increasing in volume by a unit of height, starting from the level of the fire grate and above. In the zone of largest volume of the heat exchanger per unit of height flue pipes run through the heat exchanger, which connect the gas afterburning chamber with the throughput channel for smoke gases.

EFFECT: simplified design and provision of pressure of coolant, including generated steam, which is higher than it is provided in plate heat exchangers.

6 cl, 1 dwg