CONTROL DEVICE FOR THERMAL POWER OF A SOLID FUEL HEATER Russian patent published in 2018 - IPC F23L3/00 F23L9/00 F23N3/04 F23N3/06 

FIELD: heat-and-power engineering.

SUBSTANCE: control device for the thermal power of a solid fuel heater, comprising an air inlet duct and a damper. Inlet air duct is sealed to the housing of the heater and divided by a partition into the air duct of the primary air and the air duct of the secondary air, the baffle is made parallel to the side walls of the ducts or at an angle, on the end surface of the air ducts there is a two-stage damper with the possibility of rotation relative to the air ducts of each stage, in the first stage of the shutter an opening is made above the partition above which the second stage of the damper is installed, which has a stop-limiter and a bracket for fastening the damper drive, suspension point of the drive is located at the level of the axis of rotation of the flap, with the stop-stop installed at angle β to the plane of the first stage of the damper, which is determined from expression β=arctgA/(A+B), where A is the width of the hole in the first stage of the flap, B is the height of the hole.

EFFECT: invention is aimed at increasing the accuracy of controlling the volume of air entering the heater and, accordingly, its thermal power, as well as ensuring a change in the ratio of primary and secondary air volumes for different operating modes of the heater.

1 cl, 1 dwg