RU226320U1 - TRAVELING OVEN - Google Patents

Abstract

The utility model relates to stoves used in camping conditions for heating and cooking. A camp stove with a burner and tubes for heating the air passing inside the tubes with combustion products, and includes a frame and installed in the frame: a first disk-shaped collector of combustion products connected to the flame tube of the burner and forming a hob together with the burner; a second combustion products manifold connected to the first manifold; a third collector of combustion products removed from the furnace, tubes connecting the second and third collectors to each other; fan; air collector supplied by the fan; air heating tubes connected to the air manifold, open at the end and passing through the second and third combustion product manifolds and inside the tubes connecting the second and third manifolds. The technical results achieved in the claimed utility model consist in increasing the flow of heated air directed into the heated room and removing combustion products at a safe distance from the hob. 7 salary f-ly, 5 ill.

Description

Technical field

The utility model relates to stoves used in camping conditions for heating and cooking.

Prior Art

A known furnace is disclosed in RF patent No. 2770937 dated April 25, 2022, made with an evaporative burner, a first disk-shaped collector of combustion products connected to the flame tube of the evaporation burner and forming a hob together with the evaporative burner, a second collector of combustion products removed from the furnace, and tubes connecting the first and second collectors to each other. This well-known stove, which provides heating of a liquid coolant, is made with a massive body, and its use in camping conditions is intended for transport, but in a tent or small unheated room (booth, shelter, pavilion) is difficult.

A furnace is also known, disclosed in German patent application DE 3307342 dated 09/06/1984, made with a burner and a plate heated by combustion products, which are also used to heat the air passing through the furnace. The disadvantage of this known technical solution is that only the walls of the combustion chamber are used to heat the air. Thus, the flow of heated air is relatively small, and to increase the flow of heated air it is necessary to increase the dimensions of the combustion chamber. In addition, combustion products are removed in close proximity to the stove, which makes it difficult to use the stove for cooking.

The closest to the claimed technical solution is the technical solution disclosed in RF patent No. 208840 dated January 17, 2022, namely a furnace including a burner with a combustion chamber and tubes, each of which passes through the combustion chamber to heat the air passing inside the tubes. However, this known technical solution does not provide for its use for cooking, and the flow of heated air is insufficient to heat the tent in severe frost.

The claimed utility model is aimed at eliminating the shortcomings of the analogue in order to ensure repeated convenient and safe use of the stove both for cooking and for relatively quickly heating a limited space, for example, in a tent.

Disclosure of utility model

The technical results achieved in the claimed utility model consist of increasing the flow of heated air directed into the heated room and removing combustion products at a safe distance from the hob. Achieving technical results is ensured by placing the burner with a combustion chamber and removing combustion products down from the hob, while several vertical channels for removing combustion products are formed, and tubes that heat the air passing through them, moved by a fan, are located inside the channels that remove combustion products from the hob panels.

More precisely, the specified technical results are achieved in a camp stove, including a frame and installed in the frame:

evaporative or gas burner with flame tube,

a first disk-shaped combustion product collector connected to the flame tube and forming a hob together with the evaporative burner,

a second combustion products collector connected to the first collector,

third collector of combustion products removed from the furnace,

tubes connecting the second and third manifolds to each other,

fan,

air collector supplied by the fan,

air heating tubes connected to the air manifold, open at the end and passing through the second and third combustion product manifolds and inside the tubes connecting the second and third manifolds.

The air collector may be adjacent to the third combustion products collector on the side opposite to the side facing the second collector.

The air collector may be adjacent to the second combustion product collector on a side opposite to the side facing the third collector.

The first and third combustion product collectors and the burner can be connected to the frame.

The second and third collectors of combustion products and the collector of air supplied for heating can be made, for example, ring-shaped and cover the flame tube or horseshoe-shaped and partially cover the flame tube.

The first and second combustion product collectors can be connected by one or more pipes. In particular, the second collector of combustion products may be adjacent to the flame tube and connected to the first collector by a pipe enclosing the flame tube.

Brief description of drawings

In fig. Figure 1 shows a general view of a camp stove.

In figure 2, fig. 3, Fig.4 and Fig.5 show the design of a camp stove without a frame.

Implementation of a utility model

Shown in FIG. 1 camp stove includes installed in frame 1 and shown in figures 2, 3, 4 and 5:

evaporation burner 2 with flame pipe 3,

the first disk-shaped collector 4 of combustion products, connected to the flame tube 3 and forming a hob together with the evaporative burner,

a second ring-shaped collector 5 of combustion products, covering the flame tube 3 and connected to the first collector 4 by pipes 6,

third ring-shaped collector 7 of combustion products removed from the furnace, covering the flame tube 3,

tubes 8 connecting the second 5 and third 7 collectors to each other,

two fans (not shown) installed in the lower part of the camp stove shown in Fig. 1,

ring-shaped collector 9 of air supplied by fans,

tubes 10 connected to the air manifold 9, open at the end and passing inside the third 7 and second 5 manifolds of combustion products and tubes 8 connecting the third 7 and second 5 manifolds,

pipe 14 of manifold 7 for removing exhaust gases (combustion products),

pipes 15 of the manifold 9 for supplying air with fans.

The use of two fans is preferable, both from the point of view of the reliability of the camp stove and for a more uniform supply of heated air.

The first disk-shaped manifold 4 and the third annular manifold 7 of combustion products, as well as the burner 2, are made, respectively, with elements 11, 12 and 13, which are connected to the frame 1. The annular manifold 9 of air supplied for heating, and the third manifold 7 of combustion products are made with a common wall.

Warm air, heated in the tubes 10, flows from the open ends of the tubes 10 into the surrounding space. In addition, the tubes 8 connecting the second 5 and third 7 collectors with each other, and the flame tube 3 are radiators that heat the surrounding air with thermal radiation and form convective flows with hot external surfaces. By changing the intensity of the cooling air flows supplied and passing through the tubes 10, it is possible to change both the temperature of the air leaving the tubes 10 and the temperature of the combustion products leaving the nozzle 14.

To control the temperature of combustion products leaving pipe 14, a temperature sensor (not shown) and a control unit are used that regulates the thermal power of burner 2 within the established permissible range (Tmin and Tmax) of the exhaust temperature Tout:

Tmin ≤ Tout. ≤ Tmax.

Claims (8)

1. A camp stove with a burner and tubes for heating the air passing inside the tubes and combustion products, characterized in that it includes a frame and installed in the frame: a first disk-shaped collector of combustion products connected to the flame tube of the burner and forming a hob together with the burner; a second combustion products manifold connected to the first manifold; a third collector for combustion products removed from the furnace; tubes connecting the second and third manifolds to each other; fan; air collector supplied by the fan; air heating tubes connected to the air manifold, open at the end and passing through the second and third combustion product manifolds and inside the tubes connecting the second and third manifolds. 2. The furnace according to claim 1, characterized in that the air collector is adjacent to the third combustion products collector on the side opposite to the side facing the second collector. 3. The furnace according to claim 1, characterized in that the collector of air supplied for heating is adjacent to the second collector of combustion products on the side opposite to the side facing the third collector. 4. The furnace according to claim 1, characterized in that the first and third collectors of combustion products and a burner are connected to the frame. 5. The furnace according to claim 1, characterized in that the second and third collectors of combustion products and the collector of air supplied for heating are ring-shaped and cover the flame tube. 6. The furnace according to claim 1, characterized in that the first and second collectors of combustion products are connected by pipes. 7. The furnace according to claim 1, characterized in that the second collector of combustion products is adjacent to the flame tube of the burner and is connected to the first collector by a pipe covering the flame tube. 8. The oven according to claim 1, characterized in that it includes an evaporation burner.