RU2576257C1 - Furnace - Google Patents

Abstract

FIELD: heating; home appliances.

SUBSTANCE: invention relates to heating furnaces and heating devices for cooking food and heating of the room. Furnace includes housing in the form of hollow cylinder, combustion chamber with fuel laying device and fuel loading door arranged inside the housing, a heating element located above the combustion chamber, made up of tank for food preparation. Heating element of the furnace is installed on the furnace housing with annular gap between its walls and walls of furnace housing, the above gap acts as a smoke stack. Device for fuel laying is made in the form of a circle with radial slots on the periphery, having the possibility of vertical and angular displacement. Supports for fixation of the device for fuel laying at required height are made in the form of inequilateral right-angled triangles attached to housing inner surface by its elongated side. Said triangles are installed so that they form several levels, located at different height. Ends of triangles at each level are located in one plane. Length and width of each radial groove exceeds the length and width of flanges of these triangles interacting with fuel laying device.

EFFECT: technical result consists in simplified design and improved conditions of heat transfer from combustion products to container for food preparation.

1 cl, 3 dwg

Description

The invention relates to heating furnaces and can be used in the development of furnaces and heating devices for cooking and heating.

Known metal portable furnace for solid fuel with a grate, containing a vertically oriented housing with a combustion zone, in which there are channels for supplying air to the combustion zone, exhaust pipe, a door installed in the housing, a heating element (AS USSR No. 119991, class 36a - IPC: F24B 1/00, 5/00).

In this furnace, fuel is loaded into the combustion zone through the door and ignited. The combustion products of the fuel heat up the heating element of the furnace, made, as a rule, in the form of flat panels, mainly cast iron. For cooking, a cooking container, such as a pan, is installed on the heating element, and its contents are heated due to thermal conductivity between the metal parts of the furnace and the container body.

The main disadvantages are the significant dimensions and weight of the furnace, as well as the fact that heat transfer from the combustion products to the cooking container is carried out through the heating element, which leads to a decrease in the efficiency of the furnace and increased fuel consumption.

A known furnace containing a housing, mainly vertically oriented, preferably in the form of a hollow cylinder, a combustion chamber with a device for storing fuel and a door for loading fuel placed inside the housing, a heating element located above the combustion chamber, made in the form of a container for cooking, mainly cauldron (furnace LLC SK Raslovo-Kladka, 115088, Moscow, Sharikopodshipnikovskaya St., 4. Formula of the invention, the design of which is available on the website: http://raslovo-kladka.ru/stroitelstvo_pechi_pod_kazan).

The specified furnace operates as follows.

Fuel is placed on the fuel stacking device installed in the combustion chamber located in the furnace body through the door, mainly firewood, and is ignited. On the upper part of the body is a container for cooking. Hot products of combustion, rising up, heat the container for cooking and exit through the chimney.

The main disadvantages of this oven are significant dimensions and weight, as well as the inability to use the oven for cooking over an open fire.

A known furnace containing a housing, mainly vertically oriented, preferably in the form of a hollow cylinder, a combustion chamber with a device for storing fuel and a door for loading fuel placed inside the housing, a heating element located above the combustion chamber, made in the form of a container for cooking, mainly cauldron, and the heating element of the furnace is installed on the furnace body with a radial annular gap between its walls and the walls of the furnace body, while this gap performs fu ktsiyu chimney. In the specified furnace, the fuel stacking device is arranged to move it relative to the combustion chamber, mainly along the height of the furnace, and to fix it in a certain position, mainly along the height of the furnace (RF Patent No. 2470232, Application No. 2011109843/03 of 03.15.2011, IPC F24B 1 / 20 - prototype).

The specified furnace operates as follows.

For cooking in a cauldron, firewood is placed on a device for stacking fuel and a fire is fired in the lower part of the furnace body. A cauldron is installed on the upper part of the body, in which the required dish is prepared. To cook food on an open fire, such as a grill, the cooking container is removed from the upper part of the furnace body, and the device for stacking fuel rises up closer to the upper part of the body and is fixed in a predetermined position by means of a fixing device - stops, depending from the calorific value of the fuel and the required temperature. Skewers or grill grill with products is installed, if necessary, in profiled grooves for cooking the necessary dishes.

The main disadvantages of this furnace is the complexity of the design of the stops, the ability to fix the device for laying fuel only in a certain position, either below or above the body, which provides only two thermal conditions for processing and cooking products, the inability to lower the device for laying fuel in its original position in the working ovens.

The objective of the invention is to remedy these disadvantages and create a furnace, the design of which will significantly improve the conditions of heat transfer from the combustion products to the tank for cooking while simplifying its design.

The solution to this problem is achieved due to the fact that in the proposed furnace containing a housing in the form of a hollow cylinder, a combustion chamber with a device for storing fuel and a door for loading fuel, located inside the housing, a heating element located above the combustion chamber, made in the form of a tank for cooking, and the heating element of the furnace is mounted on the furnace body with an annular gap between its walls and the walls of the furnace body, while this gap performs the function of a chimney, according to the invention The device for storing fuel is made in the form of a circle with radial grooves on the periphery, with the possibility of vertical and angular movement, while the stops for fixing the device for storing fuel at the required height are made in the form of non-equilateral rectangular triangles attached to the inner surface of the body with the long side, and these triangles are installed in such a way that they form several levels located at different heights, and the ends of the triangles of each level are in one th plane, wherein the length and width of each radial slot is greater than the length and width of said shelf triangles interacting with a device for stacking fuel.

The invention is illustrated by drawings, where in FIG. 1 shows a side view of an oven with an installed cooking container; FIG. 2 shows a side view of a furnace with installed skewers; FIG. 3 is a plan view of a fuel stacking device.

The furnace contains a housing 1 made in the form of a hollow cylinder. Inside the housing 1 is a combustion chamber 2 with a device for stacking fuel 3 and a door 4 for loading fuel. The heating element of the furnace is made in the form of a container for cooking 5, which is located above the combustion chamber 2 and rests on the brackets 6, interacting with the body of the furnace 1 at one end and the wall of the cooking container 5 with the other. The brackets 6 are arranged to change their location in order to adjust the annular gap 7 between the furnace body 1 and the wall of the cooking vessel 5. On the upper part of the housing 1, profiled grooves 8 for laying skewers and profiled grooves 9 for removal of combustion products are made. The device for stacking fuel 3 is made with the possibility of its axial movement relative to the combustion chamber, mainly along the height of the furnace, rotation in the radial direction and fixing in a certain position using the stops 10 for fixing the device for stacking fuel at the required height, made in the form of non-equilateral rectangular triangles.

A gate 11 with a handle 12 is pivotally mounted in the door 4 of the furnace, blocking the channels 13. For cooking on an open fire, both skewers 14 and the grill 15 are used, which are installed in profiled grooves 8 and 9.

Stops 10 for fixing the device for laying fuel at the required height, made in the form of non-equilateral rectangular triangles, are attached to the inner surface of the body with the long side so that they form several levels 16 located at different heights.

On the device for stacking fuel 3 made radial grooves 17.

To move the device for storing fuel 3 in the radial and axial directions, a rod (not indicated) is used, at one end of which a handle is made, and at the other a hook interacting with the device for storing fuel 3.

The proposed furnace operates as follows.

On the device for stacking fuel 3, installed in the combustion chamber 2, located in the housing 1 of the furnace, through the door 4 is placed fuel, mainly firewood, and is ignited. The flow rate of air entering the combustion zone is controlled by changing the bore of the channels 13 using a gate 11, the position of which relative to the door 4 is changed using the handle 12. On the upper part of the housing 1, on the brackets 6, is installed with an annular gap 7, provided by the location of the brackets 6, the capacity 5 for cooking. Hot combustion products, rising upward, heat the container 5 for cooking and exit through the annular gap 7, which functions as a chimney. Depending on the required temperature regime required for cooking, using the brackets 6, the width of the annular gap 7 is changed, and the combustion products, if necessary, are discharged both through the annular gap 7 and through the profiled grooves 9.

For the preparation of combustion products on an open fire, such as a grill, the cooking container 5 is removed from the upper part of the furnace body 1. The device for laying fuel 3 by means of a rod rises up closer to the upper part of the housing 1, while it must be turned around the axis of rotation so that the radial grooves 17 coincide with the stops 10. After that, the device for laying fuel 3 passes through the protruding ends of the stops 10, rises to the required height, rotates so that the location of the stops 10 does not coincide with the location of the radial grooves 17 and is fixed in a predetermined position, at different levels 16, by lowering / raising it to the stop 10, depending on the calorific value of the fuel and the required temperature.

Skewers 14 or grill grill 15 with products is installed, if necessary, in profiled grooves 8 and 9 for cooking the necessary dishes.

Using the proposed technical solution will improve the efficiency of the furnace, increase its time with constant fuel consumption and simplify its design.

Claims (1)

A furnace containing a housing in the form of a hollow cylinder, a combustion chamber with a device for storing fuel and a door for loading fuel, located inside the housing, a heating element located above the combustion chamber, made in the form of a container for cooking, and the heating element of the furnace is mounted on the furnace body with an annular gap between its walls and the walls of the furnace body, while this gap performs the function of a chimney, characterized in that the device for laying fuel is made in the form of a circle with a radial grooves on the periphery, with the possibility of vertical and angular movement, while the stops for fixing the device for laying fuel at the required height are made in the form of non-equilateral rectangular triangles attached to the inner surface of the body with the long side, and these triangles are installed in such a way that they form several levels, located at different heights, and the ends of the triangles of each level are in the same plane, with the length and width of each radial groove exceeding m length and width of said shelf triangles interacting with a device for stacking fuel.

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