RS20050480A - Portable heat accumulation furnace for solid fuel - Google Patents

Abstract

Portable heat accumulation furnace for solid fuel is made of a massive waterproof material with a combustion chamber (2) built without intensively cooled walls, and along the way of flue gases is prolonged by application of three air draught circulation of gas vapors along with reduction of heat transfer by radiation, along with increase of heat transfer by convection that is obtained by having lifting channels (21) inbuilt into lateral walls of the furnace. Efficient burning is performed in the combustion chamber (2) along with burning of gaseous combustible products of burning in the channel (13) of the first and a channel (15) of the second air draught of flue gas. Heat transfer from flue gases to a body (1) of the furnace is carried by means of the walls of the combustion chamber (2) and walls of the channel (13) of the first and the channel (15) of the second air draught, and heat accumulation is carried in the part (1) of the furnace comprised from ceramic material of great specific heat. Heat transfer into the environment is done by radiation and natural convection from external surfaces of furnace and convection through lifting channels (21). Control of separation of accumulated heat is carried out by regulation of air draught through lifting channels, i.e. movable stopper (20) of lifting channels.