SU21892A1 - Round bakery oven - Google Patents

Description

The present invention relates to round baking ovens. In this furnace, a system of heating gas-vapor tubes located radially from the locomotive boiler placed inside the furnace, which form annular baking chambers, is applied. In this furnace, the idea of spraying water with combustion products was used, for which purpose hot gases are supplied through gas-conducting tubes to the furnace section and through special small nozzles in them they spray water coming from adjacent perforated tubes to spray it onto the walls of the furnace for fast steam formation

In the schematic drawing of FIG. 1, a vertical section of a round baking oven is shown; FIG. 2 is the same furnace in plan.

The proposed bakery oven is heated by a system of locomotive tubes e, /, k, radially diverging and feeding from the locomotive boiler located inside the oven, which tubes form annular baking chambers. The steam boiler 9, located in the middle of the furnace, consists of an oil furnace 1,

to which oil is supplied via pipe 17, and from pipe 2, the combustion products are discharged upwards from the furnace section. The pipe 2 branches up above the boiler 6 into several tubes 8, lowering their ends to the furnace compartment and located at the maximum distance from the walls of the furnace (Figs 1 and 2). The gas-conducting tubes 8 are provided with holes at the bottom with small nozzles a, b, c, d, ai, & i, Cb di (fig, 1), of which the hot gases pulverize the water delivered from the boiler 6 through vertical pipes 7, located near or passing inside the pipes 8, Vertical perforated tube 7 is supplied, in turn, with small tubes at a known angle to nozzles a, b, c, d, 1 C, di for pulverizing water onto the walls of the flue box. The water sprayed with hot combustion products partly evaporates, and partly it is sprayed onto the burning walls of the furnace for final evaporation, after which the vapor-gas formed enters the tube system e, f, Ti, from where it comes out through the vertical pipes / connecting the system

pipe 124 All vertical pipes (located at the brick wall surrounding the entire furnace) are bent at the top of the dome of the steam generating boiler 9 (Fig. 1) and converge under the impeller wheel 12 in order to use the steam gas to activate the air supply pumps 15 into a spray oil nozzle. The blades of the wheel 12 are fastened with rims, which are simultaneously a gear, the teeth of which rotate several small gears 4 at an angle, the axes of which 13 have cranks 14 at the ends, transmitting motion to the blower pumps 15 (Fig. 1), in an amount corresponding to the number of gears 4. For the ignition of the oil is applied to the calyx 5, in the form of a conical valve, screwing onto a tube with a screw thread, inside which is placed a tube with oil and air. When screwing the cup up, this opens a hole in the bottom of the flue compartment for pouring into the cup 5 fuel (alcohol or gasoline). When unscrewing by the handles, the 16 cup 5 is lowered and, thanks to its shape, tightly closes the opening.

The subject of the patent.

1. Round bakery oven, using a steam boiler located in the middle of the oven, supplying the system radially diverging from the boiler and forming tubes e, /, k, connected by vertical tubes (i), discharging vapor gas to the burs, forming annular baking chambers.

2. At the use of a steam-gas boiler specified in paragraph 1 of the furnace, consisting of a central oil furnace 1 and a pipe 2 that diverts the combustion products, which is upwardly mounted on a row of tubes 8, which are lowered downwards and provided with openings for gas inlet and spraying water flowing from a series of 8 hole pipes 7 located or passing inside the tubes in order to quickly vaporize when spraying water on the walls of the furnace.

3. When the furnace described in paragraph 1 is used in the steam-gas exhaust pipe 12 of the safety wheel 12, in order to use the energy of the steam gas to drive B, the action of the pumps 15 supplying air to the atomizer for oil spraying.