SU79909A1 - Heating chamber (bell) stove - Google Patents

Description

Heating of dwellings in the absence of central heating is carried out exclusively by furnaces of periodic action. One of the drawbacks of these furnaces is their frequency of operation. The furnace is heated for one to two hours. During the stoking time, heat is accumulated in the furnace, then for the rest of the day, the furnace cools down, transferring the accumulated heat to the room.

In order to accumulate a daily heat supply in a furnace, a large heat capacity of the furnace is needed, and, consequently, a large mass and large volume of the furnace. Since the temperature of the surface, the furnaces periodically change from maximum to minimum, and the heat output of the heat flow is determined by the average temperature, which is significantly lower than the maximum temperature, then Lriho. Dits to give the surface of the furnace large. Due to the change in heat dissipation during the day, the air temperature in the room changes. The variability of the thermal regime of the furnace reduces the efficiency of the furnace under operating conditions.

In the present invention, a heating furnace for long burning on solid fuel is devoid of the indicated disadvantages.

Its distinctive feature is its placement in a common chamber (cap) of a shaft furnace in connection with an intermediate chamber (cap), intended for the afterburning of combustible gases and to achieve uniformity of the furnace walls in height.

FIG. 1 shows a schematic view of the furnace in a vertical section along the line // - //; in fig. 2 - a furnace view in vertical section along the line / - /; in fig. 3-view of the furnace in horizontal section along the line /// - ///; in fig. 4 and 5 - vertical sections of the furnace at the firebox with the option of supplying secondary air.

The furnace is a common chamber. In this chamber, installed firebox. Consisting of; shaft 2, grate, channel 4 for supplying secondary air, channel 5 for mixing gases and delivering a high velocity jet, additional intermediate chamber (cap), pipe 7 for direct connection to the chimney and pipe 8 for the usual exhaust smoke into the chimney.

The fuel is loaded into shaft 2. Combustion takes place at the bottom of the shaft on the grate. Air enters through the opening of the blower or furnace door. Above layer to pro649

Combustion air is admixed with secondary air. In the vertical channel 5 a mixture of combustible gases and air acquires great speed. Under the influence of this speed, as well as the natural tendency of hot, light gases to float upward, the hot mixture is supplied to the chamber (cap) 6, where the final overmixing and burning of the hot gases occur. Burnt gases that overflow the hood, pass through the edges of the hood into the casing, chamber 1, spread to the chamber, occupying a position that corresponds to its temperature and specific gravity. The cooled gases are lowered to the bottom of the chamber, where the flue is sucked through the pipe 8. During the kindling and cold flue, the gases are exhausted, 1

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through the upper nozzle 7.

Secondary air is supplied to the base of the vertical channel 5 or channel 4 (Fig. 1) or channel 9 (Figs 4 and 5), depending on the thickness and wall structure.

Subject invention

The heating chamber (bell) furnace is different from the fact that a furnace with an additional intermediate hood is placed in the common chamber (bell) of the furnace in order to burn off the combustible gases coming out of the furnace and to ensure uniform heating of the furnace in height.

FIG. 2 Section H yi

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FIG. five