JP2003028427A - Combustor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To combust, a solid fuel containing polyethylene glycol without producing soot. SOLUTION: A combustor 1 comprises a bottomed metal thin film container 3 opened at its upper portion, a solid fuel 40 accommodated in the bottomed thin film container 3 and containing polyethylene glycol, and an outer container 10 surrounding an outer periphery of the bottomed thin film container 3 in which the solid fuel 40 is accommodated for accommodating the bottomed thin film container 3. The external container 10 includes an upper container 11, and a lower container 20 demountably connected with a lower portion of the upper container 11. The upper container 11 includes a cylindrical section 12, and a holder section 15 for holding the bottomed thin film container 3 with the aid of a holder section 17 having a Y shape in plan view, disposed through three legs 16 at a lower portion of the cylindrical section 12. An inflow hole 18 is formed between adjacent legs 16 in a space section 13 formed between the cylindrical section 12 and the bottomed thin film container 3. A fuel reception section 29 is provided in the lower container 20 for receiving a liquefied fuel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustor, and more particularly, to a combustor equipped with a portable fuel that enables heating outdoors when outdoors or in the event of an earthquake or disaster. TECHNICAL FIELD The present invention relates to a combustor capable of smoothly burning without producing soot when a solid fuel containing polyethylene glycol contained in a bottomed thin-film container made of is burned.

[0002]

2. Description of the Related Art For outdoor fuel used outdoors,
For example, a composition containing methanol and a polymer as components,
Examples include gasoline emulsion and kerosene emulsion. However, since these conventional outdoor fuels generally have low boiling points, they may evaporate during storage, and the evaporated combustion gas may ignite or explode. Further, in the case of emulsified kerosene, a large amount of soot is generated during combustion, which causes a problem that the bottom of the pot becomes black. Furthermore, when the flash point is low, there is a risk that the fuel will spread when it spills, so we used tempura oil, which has a high flash point, as the fuel. The wicking property of the wick to be burned decreased with the passage of time. Also, when normal decane, which generates less soot, is burned as fuel, the thermal power fluctuates with the passage of combustion time, making it difficult to adjust the thermal power. .

[0003]

Therefore, a solid fuel containing polyethylene glycol has been proposed as a fuel for solving these problems. Since this solid fuel may have combustion residues after combustion, there is a demand for easy removal of this combustion residue. A method of use has been proposed in which the material is discarded together with the aluminum thin film container.

However, when the solid fuel is burned by a combustor having an outer container enclosing the outer periphery of an aluminum thin-film container containing the solid fuel, the relationship between the aluminum thin-film container and the outer container is aluminum. In a so-called double structure in which the side wall of the outer container is located outside the side wall of the thin film container, the side wall of the thin film container made of aluminum is heated by the combustion of the solid fuel and the temperature rises. There is a risk that the fuel gas deteriorates to generate soot and burn.

The present invention has been made in view of the above problems, and when a solid fuel containing polyethylene glycol is combusted in a combustor, a combustor capable of smooth combustion without producing soot is provided. The purpose is to provide.

[0006]

In order to solve the above-mentioned problems, a combustor according to the present invention comprises a bottomed thin-film container made of a metal material having an open upper part, and a polyethylene glycol contained in the bottomed thin-film container. A solid fuel and an outer container that encloses the bottomed thin-film container that surrounds the outer periphery of the bottomed thin-film container that contains the solid fuel. An inflow hole is provided to allow air to flow into a space formed between the side walls of the outer container.

According to the combustor having the above-described structure, since the inflow hole is formed in the side wall of the outer container, when the solid fuel burns to heat the bottomed thin film container, the air in the space expands. When it becomes lighter and flows out upwards, the air outside the combustor flows into the space through the inflow holes, takes heat from the heated bottomed thin film container, expands, and flows out upwards. Therefore, the bottomed thin-film container is efficiently cooled, the solid fuel is maintained at a temperature not higher than the specified temperature, the thermal decomposition reaction of the fuel is blocked, and soot can be burned without generating soot.

Further, in the combustor having the above structure, the inflow hole may be arranged in the side wall of the outer container located outside the bottomed thin film container in the left-right direction.

According to the combustor having the above-mentioned structure, since the inflow hole is located near the bottomed thin-film container, the air passing through the inflow hole is directly supplied to the bottomed thin-film container, so that It can be cooled efficiently.

Further, in the combustor having the above structure, the outer container has an inflow hole and an upper container on which a thin-film container with a bottom is placed,
And a lower container that is detachably connected to the lower part of the upper container and receives the fuel that has flown out when the solid fuel contained in the thin film container with a bottom liquefies and flows out from the thin film container with a bottom. You may.

According to the combustor having the above structure, since the lower container is provided below the upper container, when the solid fuel is in the liquid state, the combustor is tilted and the fuel in the liquid state has a bottomed thin film. Even if it flows out of the container, the liquid fuel is received by the lower container. For this reason, it is possible to prevent contamination due to fuel. Further, since the lower container is detachably connected to the upper container, if there is a fuel residue such as fuel in the lower container, the fuel residue can be easily removed by separating the lower container from the upper container. You can
Easy cleaning of the lower container.

Further, in the combustor having the above structure, the outer container has an inflow hole in the upper part and a holding means for holding the bottomed thin film container, and the solid fuel contained in the bottomed thin film container in the lower part. May be configured to have a fuel receiving portion that receives the fuel that has flown out when the liquid has liquefied and has flowed out from the bottomed thin-film container.

According to the combustor having the above structure, since the inflow hole, the holding means and the fuel receiving portion are arranged in an integrated outer container, the combustor of the combustor is different from the case where the outer container is separable. Management can be facilitated.

Further, in the combustor having the above structure, the inflow hole may be arranged in the side wall of the outer container located below the bottomed thin film container in the left-right direction.

According to the combustor having the above structure, since the inflow hole is arranged below the bottomed thin-film container, even if the combustor receives a lateral wind, the wind flowing from the inflow hole directly comes into contact with the bottomed thin-film container. It is possible to perform stable combustion by reducing the strength of the wind and reducing the degree of instability of the flame due to the wind.

Further, in the combustor having the above structure, the outer container has a holding means for holding the bottomed thin film container in an upper portion,
It has an inflow hole arranged in the middle portion below the holding means, and when the solid fuel contained in the bottomed thin-film container is liquefied and flows out from the bottomed thin-film container at the bottom, it receives the outflowing fuel. It may be configured to have a fuel receiving portion.

According to the combustor having the above structure, since the inflow hole, the holding means and the fuel receiving portion are arranged in an integrated outer container, the combustor is different from the case where the outer container is separable. Can be easily managed.

In the combustor having the above structure, the solid fuel contains 10 to 35% by weight of polyethylene glycol having an average molecular weight of about 6000 or more and 90 to 65% by weight of ethylene glycol. It may be configured by accommodating a cylindrical wick made of vegetable fiber having at least an open upper part.

According to the combustor having the above-mentioned structure, since both polyethylene glycol and ethylene glycol have high boiling points, there is no possibility that they will evaporate and decrease during storage to be lost. As a result, the solid fuel can be reused, which is economical. In addition, there is no possibility that the vaporized combustion gas will ignite and explode. Furthermore, since polyethylene glycol and ethylene glycol generate very little smoke when burned, smoke can also be significantly reduced when a solid composition composed of these components is burned. By adjusting the average molecular weight of polyethylene glycol to about 6000 or more, it is possible to reduce the amount of additives used to make the composition solid, and to reduce the amount of expensive additives to produce solid fuels. Can be cheap. By setting the component ratio of polyethylene glycol to 10 to 35% by weight, the solid composition is made solid and the generation of smoke is suppressed,
The solid fuel can be made inexpensive by reducing the amount of expensive polyethylene glycol used. Further, by providing a wick inside the solid composition, when the wick is ignited, the solid composition changes from a solid to a liquid and burns through the wick. In this case, the plant fiber wick continuously sucks up the liquid composition one after another and completely burns it, so that the generation of soot can be suppressed.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention will be described below with reference to FIGS. The present embodiment shows a mode of a combustor for burning a solid fuel containing a solid composition in a cylindrical wick. First, the solid fuel burned by this combustor will be described.

As shown in FIG. 4, the solid fuel 40 comprises a wick 41 and a solid composition 43 contained in the wick 41. The wick 41 is made of vegetable fiber (for example, fiber such as slurry formed by crushing newspaper with a mixer), and is formed in a thin cylindrical shape. A cylindrical solid composition 43 is housed in the space inside the wick 41. The solid composition 43 has an average molecular weight of about 60.
It contains 10 to 35% by weight of polyethylene glycol of 00 or more and 90 to 65% by weight of ethylene glycol. The solid composition 43 has a melting point of 32 to 39 ° C, a flash point of about 110 ° C, and a boiling point of about 200 ° C. Therefore, the solid composition 43 is solid at room temperature and has a high flash point, so that even if the solid composition 43 becomes a liquid, it does not burn and spread, and is safe. There is no risk that the composition 43 will evaporate and decrease during storage and will be lost.

Here, the two components of polyethylene glycol and ethylene glycol were used as fuel components because polyethylene glycol is a polymer of ethylene oxide and contains one oxygen atom per two carbon atoms, so that it is treated with ethyl alcohol. Similarly, it produces very little smoke, and since ethylene glycol contains 2 oxygen atoms per 2 carbon atoms, it has the property of producing almost no smoke due to the high oxygen content equivalent to that of methanol, while only polyethylene glycol is available. As a component, the amount of smoke increases and the cost increases, and when only ethylene glycol is a component, an additive that solidifies ethylene glycol, which is a liquid at room temperature, is required. Since it increases, it has the advantages of both and compensates for the drawbacks. These two components were a component of the fuel.

The weight ratio of polyethylene glycol mixed with ethylene glycol is set to 10 to 35% by weight, because the solid composition 43 becomes soft when the weight ratio is less than 10% by weight. This is because it becomes troublesome to mount it on a combustor, which will be described later, and the cost will increase if the weight ratio is more than 35% by weight.
In addition, the molecular weight of polyethylene glycol is set to about 6000 or more because when the molecular weight is less than about 6000, the amount of the additive used for solidifying the composition of polyethylene glycol and ethylene glycol increases, This is because the agent is expensive and the cost of the solid fuel 40 is high.

Next, a combustor for combusting the solid fuel 40 having the above structure will be described. The combustor 1 is shown in FIG.
As shown in (b) and (b), a bottomed thin film container 3 made of a metal material (for example, made of aluminum) having an open top, a solid fuel 40 housed in the bottomed thin film container 3, and a solid fuel 40. And an outer container 10 that encloses the bottomed thin film container 3 so as to surround the outer circumference of the bottomed thin film container 3.

The bottomed thin film container 3 is shown in FIGS. 3 (a) and 3 (b).
As shown in, the aluminum thin film is formed in a bottomed container shape, and has a bottomed cylindrical shape that expands as it goes upward. The bottom of the bottomed thin-film container 3 is circular and has a larger area than the bottom area of the solid fuel 40. Further, the internal height of the bottomed thin film container 3 is formed to be larger than the height of the solid fuel 40. As a result, the bottomed thin film container 3 can completely accommodate the solid fuel 40.

As shown in FIGS. 1A and 1B, the outer container 10 has an upper container 11 and a lower container 20 detachably connected to the lower part of the upper container 11. . The upper container 11 will be explained by further adding FIG.
It is configured to have a cylindrical cylindrical portion 12 that expands as it goes upward, and a holding portion 15 that is connected to the lower portion of the cylindrical portion 12 and holds the bottomed thin film container 3. The holding portion 15 is provided with three legs 16 which are arranged with a predetermined gap therebetween and extend downward, and a holding member 17 which is connected to the lower ends of the legs 16 and which extends in the horizontal direction in a Y-shape in plan view. Is configured. As a result, a rectangular inflow hole 18 is formed between the adjacent legs 16. A locking projection 19 is provided on the outside of the wall surface of the leg 16 so as to project outward in the horizontal direction.

The holding member 17 having a Y shape has three rod-shaped members 17a having a width such that the bottomed thin film container 3 can be placed on the holding member 17, and adjacent rod-shaped members 17a.
A fan-shaped opening 17b is formed between them. Holding member 1
When the bottomed thin-film container 3 is placed on the bottom 7, the bottom of the bottomed thin-film container 3 communicates with the outside through the inflow hole 18, and the bottomed thin-film container 3
Is located inside the cylindrical portion 12 with a predetermined gap. For this reason, the bottom of the thin film container 3 and the cylindrical portion 1
A space 13 is formed between the inner sides of the two side walls.

The lower container 20 has a cylindrical shape with a bottom, the peripheral wall of which expands as it goes upward, and a circular opening 21 is formed at the upper end thereof. The opening area of the opening 21 is formed so as to be larger than the bottom area of the upper container 11, and in order to hold the upper container 11 near the opening 21 of the lower container 20, the upper end of the peripheral container of the lower container 20 is horizontal. Three flange portions 23 are formed with a predetermined gap in the direction and project inward. An engagement member 27 having an engagement projection 25 that engages with the locking projection 19 is attached to the upper end of the flange portion 23. The engaging member 27 is made of an elastically deformable material, and the engaging protrusion 25 is the locking protrusion 19.
When it is not engaged with, it swings inward and extends vertically upward. A fuel receiving portion 29 that receives liquid fuel is formed in the lower container 20.

The solid fuel 40 is produced by the combustor 1 having the above structure.
In order to burn the
When the lower container 20 is not attached, the holding portion 15 of the upper container 11 is moved downward from above the lower container 20 to engage the engaging protrusion 25 of the engaging member 27 with the engaging protrusion 19. The upper container 11 is locked to. In this way, the upper container 11 and the lower container 20 are configured to be separable and lockable, so that if there is a fuel residue such as fuel in the lower container 20, the upper container 11 and the lower container 20 can be separated. ,
The fuel residue can be easily removed, and the lower container 20
Makes cleaning easier.

Subsequently, the bottomed thin film container 3 containing the solid fuel 40 is housed in the upper container 11. Then, the solid combustion 40 is ignited. When the solid fuel 40 is ignited, the solid composition 43 is melted into a liquid state and evaporated while being sucked by the wick 41 and burned. In this process,
Assuming that the wick 41 is not provided outside the solid composition 43, ethylene glycol having a boiling point of 198 ° C. evaporates and burns first, and polyethylene glycol as a polymer remains and burns later.

Then, a part of the polyethylene glycol which is burned afterwards is burned while the thermal decomposition reaction proceeds to a heavy oil content which is not polyethylene glycol and a large amount of soot is generated. However, the solid fuel 4 shown in FIG.
In No. 0, the wick 41 is disposed outside the solid composition 43. Therefore, the liquid mixture of ethylene glycol and polyethylene glycol is not separated but is continuously sucked up by the wick 41 sequentially and together with the wick 41. To burn. For this reason, the separation and thermal decomposition reaction that would occur if the wick 41 is not present are not caused, and the mixed liquid smoothly and completely burns, and as a result, soot can be prevented from occurring. Further, since the wick 41 is made of vegetable fiber, the wicking property of the mixed liquid is not deteriorated, and the heating power due to the combustion of the mixed liquid can be stabilized.

Simultaneously with the combustion of the solid fuel 40, the bottomed thin film container 3 is heated and its temperature rises. Here, the inflow hole 18 is not formed in the upper container 11 and the holding member 17
Assuming that there is no opening 17b in the upper container 11,
The air in the space 13 between the bottomed thin film container 3 and the bottomed thin film container 3 is heated and expanded by the bottomed thin film container 3 to become light, and flows out from the upper portion of the cylindrical portion 12. On the other hand, the air outside the combustor 1 tries to flow into the space 13 from the upper part of the cylindrical portion 12, but the air that expands and flows out is prevented from flowing into the space 13. As a result, the bottomed thin-film container 3 cannot be cooled, the temperature of the bottomed thin-film container 3 further rises, and the solid composition portion 43 contained in the bottomed thin-film container 3 deteriorates to generate soot. Will burn.

However, in the combustor 1 of the present invention, since the inflow hole 18 is formed in the upper container 11, the space 1
When the heated, expanded and lightened air in 3 flows out upward, the air outside the combustor flows into the space 13 through the inflow hole 18. Then, the newly flowing air takes heat of the bottomed thin film container 3, expands, and flows out upward. In this way, the air outside the combustor 1 flows into the space 13 via the inflow hole 18, so that the bottomed thin film container 3 is efficiently cooled, and the solid composition part 43 has a prescribed temperature (for example, 230).
C) or less, the pyrolysis reaction is blocked, and combustion is performed without producing smoke. Moreover, since the upper end of the cylindrical portion 12 of the upper container 11 is disposed above the upper end of the bottomed thin film container 3, the flame of the solid fuel 40 is protected from cross winds and the solid fuel 40 is stabilized outdoors. Can be burned.

When the solid fuel 40 is burning, part or all of the solid fuel 40 is in a liquid state. Therefore, for example, when an external force acts on the combustor 1 and the combustor 1 tilts, fuel in a liquid state may flow out from the bottomed thin film container 3. However, according to the combustor 1 of the present invention, since the lower container 20 is disposed below the upper container 11, the fuel in the liquid state passes through at least the opening 21 and the fuel receiving portion 29 of the lower container 20. Flows in. For this reason, it is possible to prevent contamination due to fuel.

In the embodiment described above, the upper container 1
Although the example in which 1 is configured to be attachable to and detachable from the lower container 20 is shown, the present invention is not limited to this, and the upper container 11 and the lower container 20 may be connected and integrated. In this case,
The lower end of the leg 16 shown in (b) is connected to the upper end of the tip of the flange portion 23 by welding or the like. With such a configuration, the outer container 10 has a configuration in which the upper container 11 and the lower container 20 are integrated, so that the management of the combustor 1 is facilitated as compared with the case where the outer container is separable. You can

The combustor 1 may be constructed as shown in FIG. In this combustor 1, the outer container 10 has a cylindrical shape with a bottom, a Y-shaped holding member 17 is attached to the inside of the upper portion thereof, and a predetermined gap is horizontally provided below the holding member 17 and in the middle portion of the outer container 10. A plurality of inflow holes 18 arranged with the above are provided. A fuel receiving portion 29 for receiving liquid fuel is provided below the inflow hole 18 and below the outer container 10.
The upper shape of the outer container 10 is the upper container 11 shown in FIG.
Since the shape of the holding member 17 and the shape of the bottomed thin film container 3 are the same as those described above according to the cylindrical portion 12, the description thereof will be omitted. By configuring the combustor 1 as described above, the same effect as that of the combustor 1 shown in FIG. 1 described above can be obtained, and further, the inflow hole 18 is disposed below the bottomed thin film container 3. Therefore, even if the combustor 1 receives a cross wind, the wind does not directly hit the bottomed thin-film container 3. Therefore, the strength of the wind should be reduced to reduce the degree of instability of the flame. You can

[0037]

According to the combustor of the present invention, by forming the inflow hole in the side wall of the outer container, when the solid fuel burns and the bottomed thin film container is heated, the air outside the combustor is discharged. Flows into the space through the inflow holes, takes heat from the heated bottomed thin film container, expands, becomes lighter, and flows out upward. Therefore, the bottomed thin-film container can be efficiently cooled, the solid fuel can be maintained at a specified temperature or lower, the thermal decomposition reaction of the fuel can be prevented, and the solid fuel can be burned without generating soot.

Further, when the inflow hole is arranged on the side wall of the outer container located on the outer side in the left-right direction of the bottomed thin-film container, the inflow hole is located near the bottomed thin-film container, so that the inflow hole passes through the inflow hole. Air is directly supplied to the bottomed thin film container, and the bottomed thin film container can be cooled more efficiently.

In the case where the outer container is composed of an upper container and a lower container detachably connected thereto,
Even if the liquid fuel flows out, it can be caught by the lower container, and the contamination due to the fuel can be prevented.
Further, when there is a fuel residue such as fuel in the lower container, the fuel residue can be easily removed by separating the lower container from the upper container, and the lower container can be easily cleaned.

Further, when the inflow hole, the holding means and the fuel receiving portion are provided in an integrated outer container, the combustor can be managed more easily than when the outer container is separable. it can.

Further, when the inflow hole is arranged in the side wall of the outer container located outside the bottomed thin film container in the left-right direction, even if the combustor receives a side air flow, the air flowing in from the inflow hole directly flows. Do not hit the bottomed thin film container, reduce the wind strength,
Stable combustion can be performed by reducing the degree of instability of the flame due to the wind.

The solid fuel has an average molecular weight of about 60.
10-35% by weight of polyethylene glycol of 00 or more
In the case of containing a cylindrical plant fiber wick having at least an open upper part in a solid composition containing 90 to 65% by weight of ethylene glycol,
Since the boiling point is high, there is no risk that the fuel will evaporate during storage and be lost, and the solid fuel can be reused, which is economical. In addition, there is no possibility that the vaporized combustion gas will ignite and explode. Furthermore, by using a composition of polyethylene glycol and ethylene glycol as the fuel, smoke generation can be extremely reduced. In addition, by setting the average molecular weight of polyethylene glycol to about 6000 or more and the component ratio of polyethylene glycol to 10 to 35% by weight,
The amount of the additive used to make the composition in a solid state can be reduced and the cost can be reduced. Further, by providing the wick in the solid composition, the wick made of plant fiber continuously sucks up the liquid composition continuously and completely burns it, so that the generation of soot can be suppressed.

[Brief description of drawings]

FIG. 1 shows a combustor in one embodiment of the present invention,
The figure (a) is a top view of a combustor, and the figure (b) is a front view of a combustor.

FIG. 2 shows an upper container according to an embodiment of the present invention, FIG. 2 (a) is a plan view of the upper container, and FIG.
FIG. 4 is a front view of an upper container.

3A and 3B show a bottomed thin-film container containing a solid fuel according to an embodiment of the present invention, FIG. 3A is a plan view of the bottomed thin-film container, and FIG. 3B is a bottomed thin-film container. It is a front view of a container.

FIG. 4 shows a solid fuel according to an embodiment of the present invention, FIG. 4 (a) is a perspective view of the solid fuel, and FIG. 4 (b) is a longitudinal sectional view of the solid fuel.

FIG. 5 shows a combustor according to one embodiment of the present invention,
The figure (a) is a top view of a combustor, and the figure (b) is a front view of a combustor.

[Explanation of symbols]

1 combustor 3 Bottomed thin film container 10 External container 11 Upper container 13 Space 15 Holder 18 Inflow hole 20 Lower container 29 Fuel receiver 40 Solid fuel 41 Wick 43 Solid Composition

Continued front page    (72) Inventor Yasuda Nakazawa             387-1 Shimohirama, Kawasaki City, Kanagawa Prefecture Shimodaira             Ma 3-2-208

Claims (7)

[Claims] 1. A bottomed thin-film container made of a metal material having an open top, a solid fuel containing polyethylene glycol contained in the bottomed thin-film container, and the bottomed thin film containing the solid fuel. An outer container surrounding the outer circumference of the container and accommodating the bottomed thin-film container, and a space formed on the side wall of the outer container between the side wall of the bottomed thin-film container and the side wall of the outer container. A combustor having an inflow hole through which air is introduced. 2. The combustor according to claim 1, wherein the inflow hole is provided in a side wall of the outer container located outside the bottomed thin film container in the left-right direction. 3. The outer container having the inflow hole, the upper container on which the bottomed thin film container is placed, and the outer container, which is detachably connected to the lower part of the upper container and is housed in the bottomed thin film container. The combustor according to claim 2, further comprising: a lower container that receives the fuel that has flown out when the solid fuel is liquefied and flows out from the bottomed thin-film container. 4. The outer container has a holding means for holding the bottomed thin film container while having the inflow hole in the upper part, and the solid fuel contained in the bottomed thin film container is a liquid in the lower part. The combustor according to claim 2, further comprising a fuel receiving portion that receives the fuel that has flowed out when the fuel flows out of the bottomed thin film container. 5. The combustor according to claim 1, wherein an inflow hole for letting in the air is provided in a side wall of the outer container located outside the bottomed thin film container in the left-right direction. . 6. The outer container has a holding means for holding the bottomed thin film container in an upper portion, the inflow hole arranged below the holding means in an intermediate portion, and the bottomed portion in a lower portion. 6. A fuel receiving portion for receiving the fuel that has flown out when the solid fuel contained in the thin film container is liquefied and flows out from the bottomed thin film container.
The described combustor. 7. The solid fuel has an average molecular weight of about 60.
00 or more of the above-mentioned polyethylene glycol is contained in 10 to 35% by weight, and at least a cylindrical vegetable fiber wick having an open top is contained in a solid composition containing 90 to 65% by weight of ethylene glycol. The combustor according to any one of claims 1 to 6, characterized in that: