JP7672139B2 - Combustion promoter for wood stoves - Google Patents

Description

The present invention relates to a combustion promoter for a wood stove that can efficiently burn solid fuels such as firewood inside the furnace of the wood stove.

A combustion promoter used in the furnace of a wood stove used indoors or outdoors is placed under the firewood when it is ignited and burned, supporting it while forming gaps between the logs and between the logs and the floor of the furnace, improving air circulation and promoting combustion. An example of a conventional technology for such a firewood stove combustion promoter is shown in Patent Document 1. This conventional technology firewood stove combustion promoter comprises a plate-shaped member and a number of protrusions that protrude from the plate-shaped member and have through holes inside along the protruding direction.

Patent No. 6032653

When using the combustion promoter of the conventional technology described in Patent Document 1, the combustion promoter is placed on the floor inside the wood stove furnace, and firewood, which is a solid combustion material, is placed on top of it. However, one of the openings of the through holes is blocked by the floor, which causes poor air circulation and reduces combustion efficiency. In addition, since the protrusions are only provided on one side of the plate-shaped member, depending on how the firewood is placed, there is a problem that air circulation is not good and it is difficult to promote the combustion of the firewood.

This invention has been made in consideration of the above-mentioned circumstances, and its means resides in a device for promoting combustion in a wood stove, which is formed by connecting and fixing polyhedrons, each having a hollow portion therein and having openings in at least two faces that communicate with the hollow portions, so that the hollow portions of the adjacent polyhedrons communicate with each other through the openings of the adjacent polyhedrons, and six of the polyhedrons are arranged in a cross shape while communicating with each other, with the openings facing each other to form a connected space, and the hollow portions of the six polyhedrons and all of the openings communicating with each other through the connected space .

Furthermore, the polyhedron is made of a metal material. Also, the polyhedron is made of a flammable material. Furthermore, the polyhedron is a rectangular parallelepiped.

The combustion promoter for the wood stove of the present invention is a polyhedron, so when it is placed on the floor inside the furnace of the wood stove during use, the edge and ridge parts are always at a certain height from the floor. When fuel such as firewood is placed on the edge and ridge parts, air circulation improves and combustion is accelerated. When multiple combustion promoters are placed, multiple edge and ridge parts are present, so a large number of firewood fuels can be placed stably across the edge and ridge parts. When firewood is ignited from below on flammable paper or the like, a gap of the height of the polyhedron is created between the bottom of the firewood and the floor, and since the inside of the polyhedron has a hollow part, the supply of oxygen is promoted by the rising air current generated by the combustion from the opening through this hollow part, and the firewood burns well. This accelerates the temperature rise in the room. Since the opening is provided on at least two sides of the polyhedron, the rising air current flows smoothly through the hollow part and the opening, further promoting combustion.

If the above-mentioned polyhedral combustion promoters are connected and fixed together so that the cavities of the combustion promoters communicate with each other through the openings of adjacent combustion promoters to form a composite combustion promoter, there is no need to place them one by one on the floor surface with an appropriate amount of space between them, and they can be lined up in one placement, making the placement work more efficient. In addition, the distance from the floor surface to the top end is greater, which further promotes combustion. In this case, since the cavities of each combustion promoter are connected through the openings, it is easier for an updraft of air to occur during combustion, and the rate of ascent is faster, which has the advantage of making it possible to heat a room in a shorter time.

In addition, if the composite combustion accelerators are connected and fixed so that adjacent hollow sections are connected to form a connected composite combustion accelerator, there is an advantage that preparations before combustion can be completed more quickly. Furthermore, since adjacent combustion accelerators, composite combustion accelerators, and connected composite combustion accelerators are all aligned in height, when placing firewood, it is less likely to slip off, and preparation work can be completed quickly.

When the combustion promoter is made of a metal material such as stainless steel, it has the advantage of being reusable and highly durable. If the combustion promoter is made of a combustible material such as wood, it can also be used as fuel, so not only will less firewood be used, but it also saves the trouble of having to clean up afterwards. Another advantage is that it is lighter than metal materials, making it easier to carry.

FIG. 1 is a perspective view of a hexahedral combustion promoter according to an embodiment of the present invention; A perspective view of a composite combustion promoter consisting of six hexahedral combustion promoters fixed together and placed on a floor surface. 3 is a perspective cross-sectional view of FIG. A perspective view of the composite combustion promoter placed on the floor at different angles A perspective view of a composite combustion promoter with multiple cutouts Example of use of composite combustion promoter A perspective view of a composite combustion promoter connected in the longitudinal direction by a connecting material. FIG. 8 is a perspective view of an example of using the long connected composite combustion promoter of FIG. 7 for firewood combustion; Example of use inside a wood stove FIG. 13 is a perspective view of a composite combustion promoter according to another embodiment; 11 is a perspective cross-sectional view of FIG. FIG. 11 is a perspective view of the composite combustion promoter of FIG. 10 viewed from a different angle. 11 is a perspective view of a connected composite combustion promotion device in which the composite combustion promotion devices of FIG. 10 are connected in the longitudinal direction by a connecting rod. 11 is a perspective view of a connected composite combustion promotion device in which the composite combustion promotion devices of FIG. 10 are connected to each other in the longitudinal direction without using a connecting rod.

The embodiment of the present invention will be described with reference to the drawings. Here, a polyhedron refers to a polyhedron surrounded by four or more planes, and is composed of the edges of straight lines connecting the ridges of multiple vertices, and thick faces surrounded by these edges. Specifically, it refers to pyramids, hexahedrons, dodecahedrons, pentahedrons, etc. The hollow portion refers to the inside of the space surrounded by the faces of the polyhedron, and the opening refers to a through hole opened in some or all of these faces, but if all the faces are opened, there will essentially be no faces, so in this case the opening is formed by the space surrounded by the edges of other adjacent faces.

As shown in FIG. 1, the combustion promoter 1 for a wood stove according to one embodiment of the present invention (hereinafter, simply referred to as the "combustion promoter 1") is a rectangular parallelepiped, which is a hexahedron having six faces 2, and has a hollow portion 3 inside, and an embodiment in which openings 4 are formed in a total of three of the six faces 2, two in the vertical direction and one in the horizontal direction in the figure. The openings 4 in the two upper and lower faces 2 in FIG. 1 are all open on the faces 2, and the outline of the opening 4 is formed into a square by the edge portions 21 of the four faces 2 surrounding it. It is sufficient that the openings 4 are provided in at least two faces 2, but it is preferable that they are provided in three or more faces 2. In this way, as shown in FIG. 9, no matter what position the wood stove A is placed in on the floor B during use, the two openings 4 will not necessarily face the floor B, so that the air circulation between the hollow portion 3 and the furnace of the wood stove A will improve and combustion will be promoted. In the case of two openings 4, the same effect can be achieved by placing the openings 4 so that they do not face the floor surface B. The combustion promoters 1 can be placed on the floor surface B in a careful line, as described above, with the firewood C placed on top of them, but even if multiple combustion promoters 1 are placed randomly as if tossing them in, and the firewood C is placed on top of them, this creates more gaps between the combustion promoters 1 and improves the flow of air with the rising air current through the hollow portion 3 and openings 4, promoting combustion.

The same applies when the combustion promoter 1 is a polyhedron other than the hexahedron described above. The reason for making it a polyhedron is that the face portion 2 is flat, making it easy to create a composite combustion promoter 6 that is connected and fixed to each other, and because it is flat, it can be stably placed on the floor surface B.

Next, other embodiments shown in Figures 2 to 5 will be described. This embodiment shows a composite combustion promoter 6 in which six combustion promoters 1 made of rectangular parallelepipeds, particularly square parallelepipeds, are assembled and fixed together. Each combustion promoter 1 has six faces 2, one cavity 3, and two openings 4 in which a pair of opposing faces 2 are fully open. Each combustion promoter 1 is connected and fixed to the edge 21 of the openings 4 of the other four combustion promoters 1 that surround the outer edge 21 of each opening 4. This connection and fixation forms a connected space 5 in which the openings 4 of the six combustion promoters 1 face each other, as can be clearly seen in Figure 3, and a composite combustion promoter 6 is formed in which the hollow parts 3 of the six combustion promoters 1 and all the openings 4 are connected to each other through this connected space 5.

An example of using this composite combustion promoter 6 by placing it on the floor surface B of a wood stove A will be described with reference to Figure 2. In this example, six combustion promoters 1 protrude in six directions from the connecting space 5, and the parallel edge portions 21 of the surface portions 2 of the lower two combustion promoters 1 are placed on the floor surface B and stabilized, while the parallel edge portions 21 of the surface portions 2 of the upper two combustion promoters 1 are positioned approximately parallel to the floor surface B. Figure 4 also shows that the ridge portions 22 of the three combustion promoters 1 positioned below come into contact with the floor surface B, and the weight of the composite combustion promoter 6 is supported in a balanced manner at three points of the ridge portions 22, and is stable, and the ridge portions 22 of the upper three combustion promoters 1 are at the same height. Furthermore, FIG. 5 shows a combustion promoter 1 constituting the composite combustion promoter 6 shown in FIG. 2, in which an opening 4 is formed on the entire surface of the face 2, and a notch 23 is formed in the edge 21, and the center of the other face 2 is hollowed out to form a partial opening 4.

When in use, the device may be placed on the floor surface B with two parallel edge portions 21 as shown in Figs. 2 and 5, or may be placed with three-point support of the ridge portion 21 as shown in Fig. 4, or may be placed in some other way. Fig. 5 shows a composite combustion promoter 6 in which multiple notches 23 are formed in the edge portion 21 of the face portion 2 of the combustion promoter 1 shown in Fig. 2.

Figure 6 shows an example in which both ends of a firewood C are placed on the two parallel edges 21 located above two composite combustion promoters 6 that are erected on the floor by the two edges 21, forming a gap below the firewood C. In this case, if flammable paper or the like is placed below the firewood C before igniting it, air circulation improves through the hollow portion 3, opening 4, and notch 23 of the composite fuel promoter 6, which has the effect of promoting the combustion of the firewood A. Forming the notch 23 further improves air circulation, further promoting combustion.

The embodiment shown in Figure 7 shows a connected composite combustion promoter 8 in which the composite combustion promoters 6 shown in Figures 2 to 4 are connected in a row in the longitudinal direction using a connecting rod 7. The connecting rod 7 is a thin rod with a rectangular cross section and an outer diameter that is approximately equal to or slightly smaller than the inner diameter of the fully open opening 4 of the face portion 2, and shows an embodiment of the connected composite combustion promoter 8 that is connected in series by penetrating the opposing fully open openings 4 and connecting spaces 5 of two adjacent composite combustion promoters 6.

In this embodiment, as shown in Figure 8, the required number of firewood C are placed on the floor surface B, for example, in two rows, and then both ends of the required number of connected composite combustion promoters 8 are placed in a direction perpendicular to the longitudinal direction of the firewood C, and the embodiment is similarly stacked up to two levels. In this case, as in the above, if you place a flammable paper or the like under the stacked firewood C and then ignite it, the air will flow better through the gaps between the firewood C and the connected composite combustion promoters 8, the opening 4 of the combustion promoter 1, and the cavity 3, so that a large number of firewood C can be burned quickly, and the temperature in the room can be raised quickly.

Next, other embodiments shown in Figures 10 to 14 will be described. In this embodiment, the combustion promoter 1 is a composite combustion promoter 60 in which six rectangular parallelepipeds of different shapes and sizes are connected together so that the hollow parts 3 of each are connected through the openings 4 formed in the surface part 2, and the combustion promoter 1 has protruding parts in six directions. In the embodiment shown in Figures 10 to 12, four combustion promoters 1 protruding in four directions on the same plane are connected and fixed to each other at the ends 21 of the surface part 2 having the openings 4 on the entire surface to form a cross shape, and as can be seen clearly in Figure 11, two combustion promoters 11 of different shapes and sizes are fixed at right angles to the openings 40 of the sealing surface part 51 that closes the central connecting space 50 connected in this cross shape, and communicate with the hollow parts 3 of the other four combustion promoters 1 through the openings 41.

Figure 13 shows a horizontally long connected composite combustion promoter 9 in which the corresponding openings 4 on the entire surface of the composite combustion promoter 60 are connected and fixed together through a connecting rod 7, facing each other. Figure 14 shows a horizontally long connected composite combustion promoter 10 in which the combustion promoter 11, which is smaller in shape and size, is inserted inside the opening 4 of the combustion promoter 1, which is larger in shape and size. In this embodiment, all of the cavities 3 in the horizontal length direction are connected, so air circulation is improved and the combustion of the firewood C is further promoted. The method of use is the same as the embodiment of the connected composite combustion promoter 8 described above.

In the above description, the combustion promoter 1, composite combustion promoter 6, and linked composite combustion promoters 8, 9, and 10 are advantageously made of metal such as stainless steel because they can be reused repeatedly. If the material is a combustible material such as wood, it can be used as part of the fuel, and since they are disposable, they can be left as ash in the furnace, eliminating the need for cleanup. They are also lightweight and easy to carry.

In addition, even if the combustion promoter 1 in Figure 1 is made into a polyhedron without the hollow portion 3 and opening portion 4, as shown in Figure 2, a certain degree of combustion promotion effect can be obtained because there can be a large gap below and between the firewood A. In that case, the material can be either metal or wood.

As is clear from the above, when the combustion promotion device 1, composite combustion promotion device 6, and linked composite combustion promotion devices 8, 9, and 10 of this invention are placed above the floor surface B of a wood stove A, a gap is formed between the device and the floor surface B, and a gap is also formed between the device and the firewood C placed above the combustion promotion device 1. This allows the rising air current from the floor surface B to the upper part of the furnace to be smoothly exhausted into the atmosphere through the chimney D. Furthermore, each combustion promotion device 1 has a hollow portion 3, which further promotes air flow through the hollow portion 3, improving combustion efficiency, and when used in a house, the temperature inside the room can be raised, allowing for quick and efficient heating.

In the above embodiment, an example of use on the floor surface B inside the furnace of the wood stove A has been described, but it can also be effectively used to ignite firewood and other combustible materials outdoors, such as for barbecues and campfires.

It is easy to light firewood for a home wood stove, or for a bonfire, which is a camping necessity, and burns quickly, so we expect there will be a lot of demand for it.

1. Combustion promoter (polyhedron)
2 Face portion 21 Edge portion 22 Ridge portion 23 Notch portion 3 Hollow portion 4, 41 Opening 5 Connecting space portion 6, 60 Composite combustion promoter 7 Connecting rod 8, 9, 10 Connecting composite combustion promoter A Wood stove B Floor surface C Wood D Chimney

Claims (4)

A combustion promoter for a wood stove, which is composed of polyhedrons each having a hollow portion therein and having openings in at least two faces which communicate with the hollow portion, and which are connected and fixed together so that the hollow portions of the adjacent polyhedrons are connected to each other through the openings of the adjacent polyhedrons, wherein six of the polyhedrons are arranged in a cross shape in a connected state, with the openings facing each other to form a connected space, and the hollow portions of the six polyhedrons are connected to each other through the connected space, and all of the openings are connected to each other through the hollow portions . The combustion promoter for a wood stove according to claim 1 , characterized in that the polyhedron is made of a metal material. 3. The combustion promoter for a wood stove according to claim 1 or 2, characterized in that the polyhedron is made of a flammable material. The combustion promoter for a wood stove according to any one of claims 1 to 3 , characterized in that the polyhedron is a rectangular parallelepiped.

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