JP2019095143A - Combustion container and liquid fuel - Google Patents

Abstract

To provide a combustion container and liquid fuel excellent in ignitability.SOLUTION: A combustion container is composed of a storage container storing flame-retardant liquid, and a core material penetrating the inside and outside of the storage container. The core material comprises a combustion unit exposed to the outside of the storage container and combusting the flame-retardant liquid, and a liquid absorption unit arranged in the storage container and supplying to the combustion unit the flame-retardant liquid with which the storage container is filled. The combustion unit is provided with an easily ignitable portion.SELECTED DRAWING: Figure 1

Description

The present invention relates to a combustion container and a liquid fuel.

Recently, a food system called a viking type or a buffet type that can eat as much as you like from a specified range at a fixed rate has gained popularity. In such a system of meals, it is necessary to keep a number of hot dishes such as prepared dishes at a predetermined temperature for a certain period of time, and for that purpose, a dish warming device called "chafing" is often used.

Chafing refers to an apparatus configured to place a heat source under a plate or plate on which food can be placed and keep the food warm by boiling or heating, but with direct heat, temperature control is Because it is difficult, water (hot water) is placed under the plate or plate and the food is often kept warm by hot water. When such chaffing is used, conventionally, the liquid fuel is put in a liquid fuel container having a combustion wick, and the food is maintained at a predetermined temperature by burning the wick to perform hot water roasting.

In Patent Document 1, as a combustion container for liquid fuel used for such chaffing, a transparent container is provided which has an opening at one end and closes the other end to form a hollow space for containing the liquid fuel. A container made of a semitransparent material, a lid substantially having the same shape as the opening of the container and having a through hole at substantially the center thereof, which is detachably attached to the opening and closed, and the penetration of the lid A combustion container for liquid fuel is disclosed, which comprises: a combustion core inserted into the hole and having its upper end side projected to the outer surface side of the lid.

Patent Document 2 discloses a food heat insulator having a mechanism for adjusting the length of the exposed portion of the core.

In the case of performing hot water boiling using such a liquid fuel combustion container or food heat insulator, the combustion core is ignited using a heat source such as a lighter flame, and disposed under the chaffing for heating.
Because heating in chaffing is not cooking but heat retention in many cases, a liquid with a slow burning rate (also referred to as a retarded liquid) such as diethylene glycol is used as the fuel.

JP, 2011-133130, A JP 2000-150421 A

However, since the retarded liquid has a high flash point as compared with the alcohol fuel having a high burning rate, even if a heat source such as a lighter flame is brought close to the combustion core, it may not immediately ignite.
In particular, when the surface of the combustion core is covered with the retarded liquid, there is a problem that even if the heat source is brought close to the combustion core, it takes considerable time for ignition.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a combustion container and a liquid fuel having a good ignition property.

That is, the combustion container of the present invention is a combustion container comprising a storage container storing a retarded liquid and a core material penetrating the inside and the outside of the storage container, and the core material is exposed to the outside of the storage container A combustion unit for burning the retarded liquid, and a liquid suction unit for supplying the retarded liquid disposed inside the storage container and filled in the storage container to the combustion unit, The part is characterized in that an easily ignited part is provided.

In the combustion container of the present invention, since the easily ignited portion is provided in the combustion portion, the ignition property is good even when the retarded liquid is used.

In the combustion container of the present invention, it is preferable that the easily ignited portion be a projecting portion in which a part of the core material constituting the combustion portion protrudes from the periphery.
If the easily ignited portion is a projecting portion in which a part of the core material protrudes from the periphery, the area of the slow-flammable liquid in contact with the atmosphere is large in the projecting portion, so the heat of the heat source becomes the slow-flammable liquid It becomes easy to transmit and can improve the ignitability.

In the combustion container of the present invention, the core is made of fire resistant fiber, and the easy ignition site is a raised portion in which at least a part of the surface of the core constituting the burning portion is fluffed. Is desirable.
Since the surface area of the core is large, the raised portion in which at least a part of the surface of the core constituting the burning part is fluffed is easy to transmit the heat from the heat source, and the ignition becomes easy.

In the combustion container of the present invention, it is desirable that the easy ignition site be a flammable material provided on at least a part of the surface of the combustion section.
When the combustible material is provided on at least a part of the surface of the combustion section, the combustible material can ignite the retarded liquid present on the surface of the core material by the heat of combustion of the combustible material.

In the combustion container of the present invention, it is desirable that the color of the combustible material be different from the color of the core material.
When the color of the flammable material is different from the color of the core material, it becomes a mark of the ignition position, and the handleability is improved.

In the combustion container of the present invention, the combustible material desirably covers the entire surface of the combustion portion.
When the flammable material covers the entire surface of the burning portion, the flammable material can play the role of a cap of the core material. On the other hand, at the time of ignition, it is possible to ignite the retarded liquid by igniting the cap itself without removing the cap, and the handleability is improved.

In the combustion container of the present invention, the easy ignition site preferably further includes a flame reactive material.
Usually, ethylene glycol and diethylene glycol which are retarded liquids burn out with a colorless flame. Therefore, it is not easy to confirm whether or not the retarded liquid has been ignited. When the easily ignited portion contains a flame reactive material, the flame can be easily recognized by the flame reaction at the time of ignition, so that unnecessary heating after the ignition can be prevented.

The liquid fuel of the present invention is characterized in that the combustion container of the present invention is filled with a retarded liquid.
The liquid fuel of the present invention is formed by filling the combustion container of the present invention with the retarded liquid, but since the easily ignited portion is provided in the combustion portion, the liquid fuel is excellent in the ignitability.
The liquid fuel of the present invention refers to a configuration in which the combustion container of the present invention is filled with the retarded liquid, and does not indicate the fuel (slow retarded liquid) itself.

In the combustion container of the present invention, since the easily ignited portion is provided in the combustion portion, the ignitability is excellent.

Fig.1 (a) is a perspective view which shows typically an example of the combustion container of this invention, FIG.1 (b) is the partial expanded sectional view in the BB line of Fig.1 (a). FIG. 2: is a perspective view which shows typically an example of the combustion part which comprises the combustion container of this invention. FIG. 3: is a perspective view which shows typically another example of the combustion part which comprises the combustion container of this invention. FIG. 4 is a perspective view schematically showing still another example of the combustion portion constituting the combustion container of the present invention. FIG. 5: is a perspective view which shows typically another example of the combustion part which comprises the combustion container of this invention. FIG. 6 is a cross-sectional view schematically showing an example of the liquid fuel of the present invention.

Hereinafter, the combustion container and the liquid fuel of the present invention will be specifically described.
However, the present invention is not limited to the following embodiments, and can be appropriately modified and applied without departing from the scope of the present invention.

The combustion container according to the present invention is a combustion container comprising a storage container storing a retarded liquid and a core material penetrating the inside and the outside of the storage container, wherein the core material is exposed to the outside of the storage container. The combustion unit includes: a combustion unit that burns a retarded liquid; and a liquid absorption unit that is disposed inside the storage container and supplies the retarded liquid that is filled in the storage container to the combustion unit. Is characterized in that an easily ignited part is provided.

The easy ignition site in the combustion container of the present invention will be described.
The easily ignited portion constituting the combustion container of the present invention is not particularly limited as long as it can improve the ignitability in the case of using a retarded liquid. Thus, the shape of the core may be improved, or the fine structure of the surface of the core may be improved, such as a raised portion in which at least a part of the surface of the core is fluffed. Furthermore, like the flammable material provided so as to cover at least a part of the surface of the core material constituting the combustion part, the composition may be provided separately from the core material on the surface of the combustion part.

If the easily ignited portion is a projecting portion in which a part of the core material protrudes from the periphery, the area of the slow-flammable liquid in contact with the atmosphere is large in the projecting portion, so the heat of the heat source becomes the slow-flammable liquid It becomes easy to transmit and can improve the ignitability.
In addition, the number of the protrusion parts provided in the core material which comprises a combustion part is not limited to one, Two or more may be provided.
Further, the shape of the protrusion is not particularly limited, and may be substantially conical or substantially columnar. In addition, the shape of the projecting portion may be a shape in which a part of the core material protrudes in a substantially fan shape or a substantially plate shape from the surface of the core material.

If the easily ignited portion is a raised portion in which at least a part of the surface of the core material is fluffed, the area of the lately flammable liquid in contact with the atmosphere is large in the raised portion, so the heat of the heat source is irritated Can be easily transmitted to improve the ignitability. In this case, the core material is preferably made of fire resistant fiber.

If the easy ignition site is a combustible material covering at least a part of the surface of the combustion section, the combustible material is first burned by a heat source brought close to the combustion section to ignite the retarded liquid. When the flammable material starts to burn, the heat of combustion of the flammable material ignites the retarded liquid by the heat of combustion, so that the ignitability can be improved.

If the easy ignition site is a combustible material covering the entire surface of the combustion section, the combustible material is first burned by a heat source brought close to the combustion section to ignite the retarded liquid. When the flammable material starts to burn, the heat of combustion of the flammable material ignites the retarded liquid by the heat of combustion, so that the ignitability can be improved.
Furthermore, when the entire surface of the burning portion is covered with the flammable material, evaporation of the slow-retarding liquid in the storage container can be suppressed via the core material.
In addition, such a flammable material functions as a protective material that protects the core material, but when igniting a slow-flammable liquid, it is sufficient to ignite the protective material (flammable material), so wastes It is hard to occur.
Furthermore, when the combustion container filled with the retarded liquid becomes overturned, it becomes easy to suppress that the retarded liquid leaks.

Flammable materials include natural fibers such as cotton, hemp, silk and paper, rayon obtained by regenerating natural fibers, regenerated fibers such as cupra, resins such as nylon, polyethylene, polypropylene and polyester, carbon, alcohols, etc. . However, as the alcohol, one having a flash point of less than 100 ° C. is desirable, and these alcohols are sealed in a solidified state using a gelling agent or the like so that the alcohol does not evaporate in the atmosphere during storage. desirable.
Moreover, these materials may use 2 or more types together, and what mixed the said combustible substance with the nonflammable substance may be used.
Moreover, it is desirable that the flammable material does not have good wettability with the retarded liquid.
As the flammable material, nylon, polyethylene, polypropylene and polyester are desirable from the viewpoint of wettability with a low-flammability liquid, ignitability and heat of combustion. In addition, natural fibers or regenerated fibers in which the wettability with a retarded liquid is reduced by coating a wax or the like on the surface may be used.

The core material constituting the combustion container of the present invention is particularly limited in its shape, material, color, etc., as long as it can supply the retarded liquid filled in the storage container to the burning part exposed outside the storage container. Although not preferred, it is desirable to be in the form of a string. The core material may be branched into a plurality of ends inside the storage container at the end opposite to the tip constituting the burning portion.

Although the material which comprises a core material is not specifically limited, It is desirable that they are fireproof fibers, such as glass fiber.

The shape and the material of the storage container constituting the combustion container of the present invention are not particularly limited, but the storage container has a capacity capable of storing the amount of the retarded liquid necessary for the time to be burned, and the stored retarded liquid It does not matter if it does not swell.
The material of the storage container is not particularly limited, but metals such as steel and stainless steel, resins such as polycarbonate and polyester, and glass are preferable.
The volume of the storage container is not particularly limited, but is preferably 25 to 1000 mL.
The storage container may be composed of two or more parts.
As a case where a storage container is comprised from two or more parts, the case where it is comprised from a lid part and other parts is mentioned, for example.
The lid portion and the other components may be removable, or may be configured so as not to be removable by caulking, welding or the like.
In addition, the surface of the storage container may be provided with a filling port for filling a retarded liquid.

The number of through holes provided in the storage container may be any as long as the internal pressure of the storage container storing the retarded liquid can be prevented from rising excessively due to temperature rise or the like, and the number, diameter and position thereof are not particularly limited. However, if it is provided near the core passing through the inside and the outside of the storage container, it is possible to supply the retarded liquid to the core through the through hole by inverting the combustion container, so that the combustion section is configured. It is desirable at the point which is easy to supply a retarded liquid to a core material.

Ethylene glycol, diethylene glycol, triethylene glycol etc. are mentioned as a retarding liquid stored by the storage container which comprises the combustion container of this invention, You may use these 2 or more types together.
The flash point of the retarded liquid is preferably 100 ° C. or higher.

In the combustion container of the present invention, it is desirable that the color of the flammable material be different from the color of the core material.
When the color of the flammable material is different from the color of the core material, it becomes a mark of the ignition position, and the handleability is improved.

In the combustion container of the present invention, it is desirable that the easy ignition site further includes a flame reactive material.
Examples of the flame-reactive material include alkali metal-containing compounds such as Na ₂ CO ₃ , NaCl, K ₂ CO ₃ , and KCl, and alkaline earth metal-containing compounds such as CaCO ₃ .
Usually, ethylene glycol and diethylene glycol which are retarded liquids burn out with a colorless flame. Therefore, it is not easy to confirm whether or not the retarded liquid has been ignited. When the easily ignited portion contains a flame reactive material, the flame can be easily recognized by the flame reaction at the time of ignition, so that unnecessary heating after the ignition can be prevented.

In the case where the easily ignited portion contains a flame-reactive material, a method of impregnating the flame-reactive material on the protrusion formed on the surface of the core material constituting the burning portion, or the flame-reactive material and flammability The method etc. which cover at least one part of the surface of a core material by the compound containing both of materials are mentioned.

Hereinafter, an example of the configuration of the combustion container of the present invention will be described using the drawings.
Fig.1 (a) is a perspective view which shows typically an example of the combustion container of this invention, FIG.1 (b) is the partial expanded sectional view in the BB line of Fig.1 (a).
As shown in FIG. 1 (a), the combustion container 2 is composed of a storage container 10 for storing a retarded liquid and a core material 20 penetrating the inside and the outside of the storage container 10, and the vicinity of the location where the core material 20 penetrates. The through hole 30 is provided in the
As shown in FIG. 1 (b), the core 20 is a portion exposed to the outside of the storage container 10 to burn the retarded liquid (a portion shown by a double arrow a in FIG. 1 (b)). A portion 20a and a portion arranged inside the storage container 10 to supply the retarded liquid filled in the storage container 10 to the combustion portion 20a (a portion shown by a double arrow b in FIG. 1 (b)) And a liquid suction unit 20b. Furthermore, as shown in FIG. 1 (b), the combustion portion 20a is provided with a protrusion 20aa that is an easy ignition site A.
The protruding portion 20aa is a protruding portion in which a part of the core material 20 constituting the combustion portion 20a protrudes from the periphery. If the easily ignited portion is a projecting portion in which a part of the core material protrudes from the periphery, the area of the slow-flammable liquid in contact with the atmosphere is large in the projecting portion, so the heat of the heat source becomes the slow-flammable liquid It becomes easy to transmit and can improve the ignitability.

FIG. 2: is a perspective view which shows typically an example of the combustion part which comprises the combustion container of this invention.
The combustion part which comprises the combustion container of this invention may have the raising part 20ab which raised the surface of the core material 20 which comprises the combustion part 20a, as shown in FIG. In this case, the napping portion 20ab is the easy ignition site A. The core 20 shown in FIG. 2 is made of fire resistant fiber.
Since the surface area of the core is large, the raised portion in which at least a part of the surface of the core constituting the burning part is fluffed is easy to transmit the heat from the heat source, and the ignition becomes easy.

FIG. 3: is a perspective view which shows typically another example of the combustion part which comprises the combustion container of this invention.
In the combustion unit constituting the combustion container of the present invention, as shown in FIG. 3, a cord-like combustible material 41 may be wound around the surface of the core 20 constituting the combustion unit 20a.
In this case, the cord-like combustible material 41 provided to be wound around the surface of the core 20 constituting the burning section 20 a is the easy ignition site A.

FIG. 4 is a perspective view schematically showing still another example of the combustion portion constituting the combustion container of the present invention.
In the combustion unit constituting the combustion container of the present invention, as shown in FIG. 4, the tip of the core material 20 constituting the combustion unit 20 a may be covered with a disc-shaped flammable material 42.
In this case, the disk-like combustible material 42 provided so as to cover the tip of the core 20 constituting the burning portion 20 a is the easy ignition site A.
In the combustion container provided with the combustion section shown in FIG. 4, when the disc-shaped combustible material is ignited, the retarded liquid present on the surface of the core can be ignited by the heat of combustion of the combustible material.

FIG. 5: is a perspective view which shows typically another example of the combustion part which comprises the combustion container of this invention.
As shown in FIG. 5, in the combustion section constituting the combustion container of the present invention, the cap-shaped combustible material 43 may cover the entire surface of the core material 20 constituting the combustion section 20 a.
In this case, the cap-shaped combustible material 43 provided so as to cover the entire surface of the core material 20 constituting the burning section 20 a is the easy ignition site A.
When the flammable material covers the entire surface of the burning portion, the flammable material can play the role of a cap of the core material. On the other hand, at the time of ignition, it is possible to ignite the retarded liquid by igniting the cap itself without removing the cap, and the handleability is improved.

Subsequently, the liquid fuel of the present invention will be described.
The liquid fuel of the present invention is characterized in that the combustion container of the present invention is filled with a retarded liquid.
The liquid fuel according to the present invention is formed by filling the combustion container according to the present invention with the retarded liquid, but since the easily ignited portion is provided, the liquid fuel is excellent in the ignitability.

The liquid fuel of the present invention will be described with reference to the drawings.
FIG. 6 is a cross-sectional view schematically showing an example of the liquid fuel of the present invention.
As shown in FIG. 6, in the liquid fuel 1, the storage container 10 constituting the combustion container 2 is filled with the retarded liquid 3.
The liquid fuel of the present invention is formed by filling the combustion container of the present invention with the retarded liquid, but it is excellent in the ignitability because it has the easily ignitable portion.

Then, the method to manufacture the combustion container of this invention is demonstrated.
The combustion container according to the present invention processes, for example, the shape of the core material with respect to a conventionally known combustion container obtained by combining a storage container storing a retarded liquid and a core material penetrating the inside and the outside of the storage container. It can be manufactured by a method of forming an easily ignited portion by deforming according to a method etc., or providing a flammable material to be an easily ignited portion on at least a part of the surface of the core material.

As a method of forming the easy ignition site by deforming the shape of the core material by processing or the like, for example, by pulling and pulling a part of the core material, a protruding part in which the part of the core material protrudes from the periphery is formed And a method of fluffing the surface of the core material by rubbing the surface of the core material made of fireproof fibers with a metal file or the like.

As a method of providing a flammable material to be an easily ignited part on at least a part of the surface of the core material, for example, a method of adhering a resin containing a flammable material to the surface of the core material constituting the burning part, a flammable material And a method of covering the core material with a resin including the above in advance in a shape along the surface of the core material.

EXAMPLES The present invention will be described more specifically by the following examples, but the present invention is not limited to these examples.

(Comparative example 1)
[Preparation of storage container]
A cylindrical steel container having an opening at one end, which had an inner volume of 250 mL, and a steel lid fitted to the opening of the container were prepared.
At the center of the lid, a hole for penetrating a core material to be described later and a through hole serving as a vent are formed at both ends thereof.

[Preparation of core material]
A cord-like core (diameter 1.2 cm, length 10 cm) obtained by bundling glass fibers was prepared.
By filling diethylene glycol (flash point: 124 ° C.), which is a low-flammability liquid, into the above-mentioned steel container, inserting the core into the hole formed in the steel lid and caulking the steel container and the lid The combustion container and the liquid fuel according to Comparative Example 1 were produced.

Example 1
Comparison was carried out except that a part of the end of the core material prepared in Comparative Example 1 to be the burning part was pinched and pulled to form a protruding part in which a part of the glass fiber constituting the core material protruded from the periphery. The combustion vessel and the liquid fuel according to Example 1 were obtained by the same procedure as Example 1.

(Example 2)
The procedure is the same as in Comparative Example 1 except that the raised portion is formed by rubbing the surface of the core prepared in Comparative Example 1 with the metal fiber several times with a metal file to form a raised part. A combustion vessel and liquid fuel according to Example 2 were obtained.

(Example 3)
On the side to be the burning portion of the core prepared in Comparative Example 1, a cotton (4 cm in length) coated with wax processed into a string shape to be an easy ignition site is wound around the outer peripheral surface of the core. A combustion vessel and a liquid fuel according to Example 3 were obtained by the same procedure as in Comparative Example 1 except for using them.

(Example 4)
The procedure of Comparative Example 1 is the same as that of Comparative Example 1 except that a disc-shaped solid alcohol serving as an easy ignition site is disposed so as to cover the tip of the core prepared in Comparative Example 1 on the side to be the burning part. The combustion container concerning 4 and the liquid fuel were obtained.

(Example 5)
The procedure is the same as that of Comparative Example 1 except that a cap-shaped polypropylene that covers the entire burning part, which is an easy ignition site, is covered on the tip of the core prepared in Comparative Example 1 to be the burning part. A combustion vessel and liquid fuel according to Example 5 were obtained.

[Evaluation of ignitability]
With respect to the liquid fuel according to Examples 1 to 4 and Comparative Example 1, the surface of the core material is covered with a cap, and in Example 5, the whole container is turned upside down without covering with a cap. The surface of the core material constituting the burning section was covered with diethylene glycol, and the flame of the lighter was brought close to the core material in this state, and the number of seconds after which ignition was measured. In the case of the liquid fuel according to the first to fifth embodiments, the ignition is performed by causing the flame to approach the easy ignition site, and the liquid fuel according to the first comparative example performs the ignition by causing the flame to approach the tip of the core material. The The time to ignition was measured 5 times for each liquid fuel, and the ignition quality was evaluated based on the following criteria from the average time. The results are shown in Table 1.
○: The time to ignition is less than 2 seconds ×: The time to ignition is 2 seconds or more

From the results of Table 1, it was found that the liquid fuels according to Examples 1 to 5 in which the easy ignition site was provided were excellent in the ignitability.

Reference Signs List 1 liquid fuel 2 combustion container 3 retarded liquid 10 storage container 20 core 20a burning part 20aa projecting part 20ab raising part 20b liquid absorbing part 30 through hole 41 string-like flammable material 42 disc-like flammable material 43 cap Shape of flammable material A easy ignition site

Claims (8)

A combustion container comprising a storage container storing a retarded liquid and a core material penetrating the inside and the outside of the storage container,
The core member is exposed to the outside of the storage container to burn the retarded liquid, and the burning portion is disposed inside the storage container and filled in the storage container. And a liquid suction unit that supplies
The combustion vessel is provided with an easily ignited part in the combustion part. The combustion container according to claim 1, wherein the easily ignited portion is a protruding portion in which a part of a core material constituting the combustion portion protrudes from the periphery. The core material is made of fire resistant fiber,
The combustion container according to claim 1, wherein the easily ignited portion is a raised portion in which at least a part of the surface of the core material constituting the combustion portion is fluffed. The combustion vessel according to claim 1, wherein the easy ignition site is a combustible material provided on at least a part of a surface of the combustion unit. The combustion vessel according to claim 4, wherein the color of the combustible material is different from the color of the core material. The combustion vessel according to claim 4, wherein the combustible material covers the entire surface of the combustion unit. The combustion vessel according to any one of claims 1 to 6, wherein the easy ignition site further includes a flame reactive material. A liquid fuel comprising the combustion container according to any one of claims 1 to 7 filled with a retarded liquid.

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