JPH031681Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the configuration of a stove that uses solid fuel containing alcohol as a main component as a fuel source.

[Prior Art] Stoves, which have been widely used as heating devices, have been powered by charcoal, gas, oil, electricity, or the like as a fuel source.

[Problems to be Solved by the Invention] The conventional stoves and heaters described above have the following drawbacks.

In other words, for devices that use electricity or gas as a fuel source, a connecting part between the main body and the fuel source, that is, an electric cord or gas piping, is an essential component, which is inconvenient to carry and use outdoors. Additionally, those that use petroleum or charcoal as a fuel source require special or complicated equipment to prevent the generation of harmful gases, and those that use charcoal in particular require operations such as supplying fuel and disposing of residual ash. It's a hassle.

In addition, solid fuels containing alcohol as a main component, such as those containing alcohol in soap base materials, have come to be used as a fuel source for various purposes, but when used as a fuel source for stoves, the following Shortcomings were pointed out. That is, the heating power is weak, and the solid content increases over time as the alcohol burns, resulting in an extremely poor combustion condition.

The purpose of this invention is to eliminate the above-mentioned drawbacks when using solid fuel containing alcohol as a fuel source, and to stably exert an effective heating effect around the device. Another object of the present invention is to provide a solid fuel stove with an extremely simple configuration that can be easily used outdoors.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a solid fuel stove configured as follows.

That is, there is a solid fuel can containing solid fuel containing alcohol as a main component and having a can opening on the upper surface, and a lower end or its A wind tunnel section having a plurality of intake holes in the vicinity and a plurality of exhaust holes at or near the upper end thereof at average positions along the cylindrical circumferential surface thereof, and a surface at the upper mouth part of the upper end of the wind tunnel section. It is characterized by a structure consisting of a heat sink disposed in such a manner that the

In the above-described feature of the present invention, the solid fuel containing alcohol as a main component is a gel-like solid fuel containing alcohol as a main component, such as a soap base containing alcohol. The solid fuel can is made of a non-combustible material such as tin plate and sealably accommodates this type of solid fuel. Further, the solid fuel can must have a bottom surface capable of stably supporting the entire device, such as a rectangular parallelepiped half-can container, and a top surface capable of mounting the wind tunnel section thereon. Further, the wind tunnel section is made of a non-combustible material such as tin plate and has a cylindrical shape. In this case, the cylindrical shape of the wind tunnel portion may be formed to expand downward. Further, the air intake hole of the wind tunnel can be formed by making a notch or an opening in the lower end of the wind tunnel, or by connecting a frame member having a gap to the lower end of the wind tunnel. The same applies to the exhaust hole. Further, the heat dissipation plate may be a simple plate-like material, but may also be provided with heat dissipation blades as appropriate.

[Function] The solid fuel stove according to the present invention functions as follows.

That is, when the solid fuel in the solid fuel can is ignited, the flame is exposed from the can mouth. This exposed flame spreads into the wind tunnel and creates an updraft. This rising air current induces the inflow of outside air from each intake hole. At this time, the intake hole is located above the can mouth, and the above-mentioned incoming airflow reaches the flame portion without contacting the solid fuel itself, thereby enhancing the combustion state of the flame. Therefore, the temperature of the combustion surface of the solid fuel or its surroundings does not decrease due to the incoming air flow, and the wind tunnel section heated by the flame exerts its radiant heat on the solid fuel surface through the can mouth. This promotes the evaporation of alcohol from the fuel, resulting in stable and efficient combustion conditions. In addition, the above-mentioned inflow airflow is obtained evenly from a plurality of intake holes provided at average positions along the circumference of the wind tunnel, and due to the shielding effect of the wind tunnel, flames are prevented within the wind tunnel. It exerts an average heating effect on the side walls of the wind tunnel without being exposed to the external environment.

In addition, the wind tunnel section confines the upward airflow caused by the strengthened flame within a certain area, densifies it, and guides it onto the heat sink. In addition, if the wind tunnel section is formed with inclined walls that expand downward, the density of the above-mentioned upward airflow can be further increased, and more efficient heating of the wind tunnel wall and heat sink can be achieved. can.

The heating effect on the wind tunnel wall and the heat sink described above produces an effective heat dissipation effect in the surrounding area.

[Example] Next, an embodiment of the present invention will be described.

A solid fuel stove according to a first embodiment is shown in FIG. In this solid fuel stove, the wind tunnel section 1
has a cylindrical shape, and has an upper opening 1a at its upper end.A plurality of intake holes 5 are bored on the cylindrical shape near its lower end, and on its upper edge. Notch-shaped exhaust holes 7 are formed. Further, along the surface of the upper opening portion 1a, a disk-shaped heat dissipation plate 9 is mounted on the edge thereof. Also solid fuel can 1
0 is a rectangular parallelepiped half-can container made of tin, and has a circular can opening 10a on its top surface. A solid fuel 11 containing alcohol as a main component is stored in the solid fuel can 10, and the can opening 10a is closed at the time of storage. In use, the wind tunnel section 1 is placed on the upper surface of the solid fuel can 10 with the can mouth 10a opened, with its lower edge touching. In this case, the wind tunnel section 1 is arranged so as to surround the edge of the can mouth section 10a. In addition, 12 is solid fuel 1
1 is the flame accompanying the combustion of 1, and A is the flame 1
2 is a heated air flow from the suction hole 5 generated by
B is an updraft heated by the flame 12.

Next, FIG. 2 shows a solid fuel stove according to a second embodiment. This solid fuel stove includes a wind tunnel section 1' with a downwardly expanding inclined wall. The slope inside the wind tunnel section 1' focuses the heated air flow B, and as a result, the heating effect of the heated air flow B on the wall of the wind tunnel section 1' is made uniform, and reaches the heat sink 9 in a highly concentrated manner. In addition, especially the lower part of the wind tunnel part 1' heated by the flame transfers the radiant heat to the can mouth part 10a.
The alcohol is applied to the surface of the solid fuel 11 through the solid fuel 11 to promote the evaporation of the alcohol contained therein, thereby stabilizing the combustion state.

Next, FIG. 3 shows a solid fuel stove according to a third embodiment. This solid fuel stove is equipped with a wind tunnel section 1'', which has an upper cylindrical section 2.
It consists of a lower slanted wall cylindrical portion 3 and a hole wall portion 4 continuous along the lower edge of the slanted wall cylindrical portion 3. Further, a support frame 6 is fitted into the upper end of this wind tunnel section 1''.
has. Further, the slanted wall cylinder part 3 has a downwardly expanding shape, and has intake holes 5 on the hole wall part 4 whose lower edge portions are cut out at equal positions. Note that the remaining portion of the hole wall portion 4 formed by the notch functions as leg portions 4a. Further, the support frame 6 is formed in a mesh shape so as to constitute exhaust holes 7, and its upper protruding portions 8 are bent outward so that their ends lie within a horizontal plane. Further, on this support frame 6, a tie 6a... is installed at an internal position between the wire rods (as shown in Fig. 4), and this tie 6a... is supported on the upper opening portion 2a. It is fitted. Also, this wind tunnel section 1'' has its legs 4
a... is mounted on the upper surface of the solid fuel can 10.

In the solid fuel stove of this third embodiment, as shown in FIG.
The combustion state of No. 2 can be enhanced by reducing the influence of external effects and by obtaining an even amount of outside air flowing in from the intake holes 5. The heating density of this heated air stream B is gradually increased as it moves along the inclined wall.

Further, even if the flame 12 is uneven within the inclined wall cylinder part 3 due to the influence of the external environment, the heating effect is uniform throughout the cylinder part 2. That is,
As shown in FIG. 5, when stronger airflow A' flows in from some of the intake holes 5 compared to other weaker airflow A'', the heated airflow becomes biased to one side as shown in flame 12'. is also in a deflected state like B′.
However, when it reaches the inside of the cylindrical part 2, a focused and thermally uniform heated airflow B'' is obtained, which exerts a uniform heating effect on the wall of the cylindrical part 2, and is also effective on the sides of the device. At this time, the heated air flow B is accelerated within the cylindrical portion 2 and exerts an efficient heat transfer action on the heat sink 9. Also, on this inclined wall cylindrical portion 3, the heated air flow B is accelerated. The alcohol release effect on the solid fuel by heat radiation is the same as described above.

Further, the support frame 6 stably supports the heat dissipation plate 9, and also contributes to improving the combustion state of the flame 12 by efficiently discharging airflow from its exhaust holes 7.

Further, in the solid fuel stove according to the present invention, as shown in FIGS. 6 and 7, the can opening 10
A thermal power adjustment lid 15 can be provided to adjust the combustion state of the solid fuel 11 by adjusting the opening area of the opening a. The firepower adjustment lid 15 has an upper wall in which elongated holes 16 are bored parallel to each other, and is supported by receiving portions 15a and 15a at the lower part of the upper wall surface, and is superimposed on the upper wall, and the elongated holes 16... An opening/closing door 17 having elongated holes 18 on its surface that match the opening and closing door 17 is disposed so as to be movable along the surface. 19 is a handle for this transition operation.

[Effects of the invention] Since the present invention has the above-described configuration, it has the following effects.

That is, since a sufficient heating effect is stably generated evenly over the side circumferential surface of the solid fuel stove, it can be used effectively even outdoors.

In addition, the fuel source is a solid fuel whose main component is inexpensive alcohol, and the device has a simple configuration that can be achieved by simply installing each part, and the fuel container itself is also a component. Therefore, economical, that is, simple use can be achieved.

In addition, as mentioned above, since the fuel storage can itself is a component, it can be used without requiring special operations such as supplying fuel, and its combustion residue can be disposed of together with the can, and its handling operations is extremely simple.

[Brief explanation of the drawing]

Fig. 1: Partial cross-sectional perspective view of a solid fuel stove according to the first embodiment of the present invention; Fig. 2: Partial vertical cross-sectional front view of a solid fuel stove according to the second embodiment; Figures: A perspective view of the solid fuel stove according to the third embodiment, Figure 4: An explanatory vertical sectional view, Figure 5: An explanatory partial longitudinal sectional view, Figure 6... A plan view of the firepower adjustment lid, FIG. 7...a vertical cross-sectional view of the same. Explanation of drawing symbols, 1, 1', 1''...Wind tunnel section, 1
a, 2a...Top portion, 5...Intake hole, 7...Exhaust hole, 9...Radiation plate, 10...Solid fuel can, 10a
... Can opening, 11 ... Solid fuel.

Claims (1)

[Claims for Utility Model Registration] (1) A solid fuel can containing a solid fuel whose main component is alcohol and having a can opening on the top surface, and a solid fuel can that surrounds the can opening and is placed on the top surface of the solid fuel can. a wind tunnel portion provided with a plurality of intake holes at or near the lower end thereof and a plurality of exhaust holes at or near the upper end thereof at average positions along the cylindrical circumferential surface thereof; A solid fuel stove characterized by a configuration consisting of a heat sink disposed at the top end of the section so as to face the upper opening. (2) The solid fuel stove according to claim 1, wherein the wind tunnel portion is formed to have a sloped wall that expands downward.