JP2020118303A - Combustion device - Google Patents

Abstract

To provide a combustion device that can perform stable combustion in a wide range inside a combustion chamber.SOLUTION: A combustion device 1 includes: a combustion chamber 50 for combusting a solid fuel; an exhaust cylinder 20 connected on an upper rear side of the combustion chamber 50 and discharging a combustion gas; a pair of guide plates 23, 23 extending downward inside the combustion chamber 50 from a lower end part of the exhaust cylinder 20; and a baffle plate 24 extending downward from a lower front side of the pair of guide plates 23, 23. The pair of guide plates 23, 23 are disposed so as to face each other on both right and left sides while interposing the exhaust cylinder 24 therebetween. The baffle plate 24 is disposed so as to bridge between the pair of guide plates 23, 23.SELECTED DRAWING: Figure 1

Description

The present invention relates to a combustion device.

As a device for burning solid fuel such as firewood, for example, a firewood stove disclosed in Patent Document 1 is known. This wood-burning stove is a so-called rocket stove in which a secondary combustion cylinder is connected to the upper rear of a combustion chamber equipped with a wood-burning door on the front side. A secondary combustion air guide plate is provided inside the combustion chamber.The secondary combustion air guide plate guides the air to the secondary combustion cylinder and mixes it with combustible gas to prevent smoke generation. Is configured.

JP, 2014-115068, A

Since the above-described conventional wood stove is configured so as to promote combustion in the secondary combustion cylinder by including the secondary combustion air guide plate, the combustion range in the combustion chamber tends to be narrowed, and the combustion efficiency is improved. There was room for further improvement in increasing the.

Therefore, an object of the present invention is to provide a combustion device capable of performing stable combustion in a wide range within a combustion chamber.

The above object of the present invention is a combustion device comprising a combustion chamber for burning solid fuel, and an exhaust pipe connected to an upper rear side of the combustion chamber for exhausting combustion gas, wherein a lower end portion of the exhaust pipe is provided. A pair of guide plates extending downward in the combustion chamber and a baffle plate extending downward from the lower front side of the pair of guide plates are provided, and the pair of guide plates face each other on both left and right sides sandwiching the exhaust pipe. And the baffle plate is achieved by a combustion device arranged so as to straddle between the pair of guide plates.

In this combustion apparatus, it is preferable that an opening/closing door having a transparent portion for visually recognizing the inside of the combustion chamber is provided on the front side of the combustion chamber, and a side portion of the combustion chamber is provided along the transparent portion. It is preferable that the intake portion is formed so as to introduce the outside air.

Further, it is preferable that the side portion includes an inner wall and an outer wall that form an air layer for heat insulation therebetween, and the air intake portion is formed on the inner wall and faces the air intake portion of the outer wall. It is preferable that the position is provided with a slide type shutter capable of adjusting the opening degree of the intake section.

According to the present invention, it is possible to provide a combustion device capable of performing stable combustion in a wide range within a combustion chamber.

It is a perspective view of the combustion device concerning one embodiment of the present invention. It is a front view of the combustion apparatus shown in FIG. FIG. 3 is a sectional view taken along line AA of FIG. 2. It is a principal part enlarged front view which shows the use condition of the combustion apparatus shown in FIG. It is a principal part expanded side view which shows the other use condition of the combustion apparatus shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a combustion device according to an embodiment of the present invention. As shown in FIG. 1, the combustion device 1 includes a main body 10 and an exhaust stack 20 connected to the main body 10. The heat resistance can be improved by forming the main body 10 and the exhaust pipe 20 from, for example, a enamel-processed metal plate.

The main body 10 is formed in a housing shape having an opening/closing door 30 on the front side that opens, and a combustion chamber 50 is formed inside. An opening is formed in the upper portion 11 of the main body 10, and the exhaust pipe 20 is connected to the upper rear side of the combustion chamber 50 by inserting the exhaust pipe 20 into this opening. A plurality of legs 40, 40 are rotatably attached to the lower part of the body 10, and the body 10 can be supported by standing up the legs 40, 40 in a folded state.

The exhaust pipe 20 includes an inner peripheral wall 21 and an outer peripheral wall 22 each having a square cross section, and an air layer for heat insulation is formed between the inner peripheral wall 21 and the outer peripheral wall 22. The exhaust stack 20 can be detached from the main body 10 and divided into a plurality of parts for transportation or storage.

FIG. 2 is a front view of the combustion device shown in FIG. As shown in FIG. 2, the opening/closing door 30 is provided with a flat plate-shaped transparent portion 32 made of heat-resistant glass or the like in a rectangular frame 31, and via hinges 33, 33 so as to cover the opening of the main body 10. It is attached so that it can be opened and closed, and the opening of the main body 10 can be held in a closed state by operating the lock lever 34. In the opening/closing door 30 of the present embodiment, the transparent portion 32 is formed on almost the entire surface in order to enhance the visibility in the combustion chamber 50, but the transparent portion may be formed on only a part of the opening or the transparent portion. It is also possible to adopt a configuration without.

FIG. 3 is a sectional view taken along line AA of FIG. Further, FIG. 4 is a front view of a main part showing a state in which the opening/closing door 30 of the main body 10 shown in FIG. 2 is opened. As shown in FIGS. 3 and 4, in the main body 10, the upper portion 11 that defines the combustion chamber 50, the left and right side portions 12 and 13, the rear portion 14 and the lower portion 15 include inner walls 11a to 15a and outer walls 11b to 15b. It has a heavy structure, and an air layer for heat insulation is formed between the inner walls 11a to 15a and the outer walls 11b to 15b.

The left and right side portions 12 and 13 are formed with intake portions 16 and 16 composed of a large number of vent holes on the lower front side of the inner walls 12a and 13a, respectively, and at positions facing the intake portions 16 and 16 on the outer walls 12b and 13b. Is provided with a shutter 18 that opens and closes the outside air inlet 17. The shutter 18 is provided along the outer walls 12b and 13b so as to be slidable in the front-rear direction indicated by the arrow in FIG. 5, and the grip portion 18a is gripped and slid to fully close the opening of the intake portion 16. The state can be changed to the fully open state. It is preferable that the opening area of the intake portion 16 is approximately the same as the opening area of the exhaust pipe 20.

As shown in FIGS. 3 and 4, a pair of guide plates 23, 23 and a baffle plate 24 are provided at the rear of the combustion chamber 50. The pair of guide plates 23, 23 are fixed to the rear inner wall 14a of the main body 10 so as to be parallel to each other on the upper rear side of the combustion chamber 50, and when the exhaust pipe 20 is connected to the combustion chamber 50, The lower end of the cylinder 20 is inserted between the pair of guide plates 23, 23. The baffle plate 24 has its upper end fixed to the lower front side of the pair of guide plates 23, 23, and its lower end fixed to the lower inner wall 15 a of the main body 10.

In the combustion apparatus 1 having the above-mentioned configuration, solid fuel such as firewood, wood chips, charcoal, and pellets is put into the combustion chamber 50 in an appropriate amount to ignite, and the open/close door 30 is closed to open the left and right shutters 18, 18. The outside air can be taken into the combustion chamber 50 from the left and right intake parts 16 and 16 to burn the solid fuel. The combustion gas generated in the combustion chamber 50 is discharged to the outside via the exhaust stack 20.

The outside air taken into the combustion chamber 50 from the intake portion 16 flows from the lower left and right sides toward the upper center portion on the front side of the combustion chamber 50, and therefore, along the transparent portion 32 of the opening/closing door 30, as shown by an arrow F1 in FIG. The outside air is introduced. Therefore, it is possible to prevent soot and the like from adhering to the transparent portion 32, maintain good visibility in the combustion chamber 50 for a long time, and enjoy the appearance of a flame in the combustion chamber 50.

In the combustion chamber 50, a pair of guide plates 23, 23 extending downward from the lower end of the exhaust pipe 20 in the combustion chamber 50, and a baffle plate 24 extending downward from the lower front side of the pair of guide plates 23, 23. It is provided. The pair of guide plates 23, 23 are arranged so as to face each other on both left and right sides of the exhaust pipe 20, and the baffle plate 24 is arranged so as to straddle between the pair of guide plates 23, 23. ..

With the combustion chamber 50 having such a configuration, the gas in the combustion chamber 50 is, as shown in FIGS. 3 and 4, the first communication portion 25 formed between the pair of guide plates 23. , And through the second communicating portions 26, 26 formed on both left and right sides of the baffle plate 24, and are guided to the exhaust pipe 20. In this way, the gas flow in the combustion chamber 50 can be dispersed as shown by the arrows F2 and F3 to burn the solid fuel in a wide range in the combustion chamber 50, so that the combustion efficiency can be improved and the combustion chamber 50 can be improved. Since the flame spreads over the entire area, the effect of production can be enhanced. The combustion state in the combustion chamber 50 can be appropriately adjusted by operating the shutter 18.

The use of the combustion device of the present invention is not particularly limited, but it can be suitably used for heating outdoors, for example. Alternatively, by attaching a mesh plate or the like to the receiving member 19 (see FIG. 3) provided on the inner wall of the combustion chamber 50, it can be used for cooking.

1 Combustion device 10 Main body 12, 13 Side part 12a, 13a Inner wall 12b, 13b Outer wall 16 Intake part 18 Shutter 20 Exhaust pipe 23 Guide plate 24 Baffle plate 30 Open/close door 32 Transparent part 50 Combustion chamber

Claims (3)

A combustion device comprising a combustion chamber for burning solid fuel, and an exhaust stack connected to the upper rear side of the combustion chamber to exhaust combustion gas,
A pair of guide plates extending downward from the lower end of the exhaust stack in the combustion chamber, and a baffle plate extending downward from the lower front side of the pair of guide plates,
The pair of guide plates are arranged so as to face each other on both left and right sides of the exhaust pipe,
The said baffle plate is a combustion apparatus arrange|positioned so that it may straddle between a pair of said guide plates. On the front side of the combustion chamber, there is provided an opening/closing door having a transparent portion for visually recognizing the inside of the combustion chamber
The combustion apparatus according to claim 1, wherein an intake portion is formed at a side portion of the combustion chamber so as to introduce outside air along the transparent portion. The side portion includes an inner wall and an outer wall that form an air layer for insulation therebetween,
The intake section is formed on the inner wall,
The combustion device according to claim 2, wherein a slide shutter that can adjust an opening of the intake portion is provided at a position of the outer wall facing the intake portion.

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