JP2002081616A - Combustion apparatus for heating power-adjustable liquid fuels - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combustion apparatus for heating power-adjustable liquid fuels which initially obtains a high heating power and allows the heating power to be weaken after a fixed time lapsed. SOLUTION: A container having an opening at the top end, a liquid fuel containing glycols as main materials housed in the container, an inner cap fitted into the opening of the container to close the opening, two linear wicks of a ceramic synthetic paper, and a cover covering the inner cap. The wicks are each mounted on the inner cap with the top end projecting outside and with the rear end dipped in the fuel in the container, and arranged, without contacting to each other, with their rear ends different in length, dipped in the liquid fuel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking appliance for keeping food warm, which is used in hotels, inns and party venues, and more particularly to a liquid fuel which can be manufactured easily and has a stable heating power. Related to a burning appliance.

[0002]

2. Description of the Related Art Alcohol solid fuel contained in a metal can has been used as a burning appliance for keeping cooked food used in hotels, inns and party venues. This canned alcoholic solid fuel falls under Class 2 flammable solids as defined by the Fire Service Law, and its flash point is as low as 11 ° C. And can only be stored in small quantities. It can also be used as a burning appliance for keeping food cooked at hotels, inns, and party venues, while alcohol solid fuel is burning (while ignited) while the alcohol solid fuel is burning. Careful handling was required when moving along.

[0003] Further, in the case of the alcohol solid fuel stored in such a metal can, the combustion state is such that the combustion flame becomes large at the beginning of use and the combustion flame becomes small as the alcohol solid fuel becomes small, and the combustion power becomes small. Is not stable,
The purpose of using canned alcoholic solid fuel has been limited. Therefore, in recent years, as shown in FIG. 7, a liquid fuel containing a glycol as a main raw material in a metal can is excellent in terms of ease of handling and stability of thermal power during combustion. It has begun to be used. The combustion apparatus 1 in which this liquid fuel is stored in a metal can has a liquid fuel such as glycols stored in a can 2, and a wick 3 is protrudingly provided at the upper center of the can 2. The liquid fuel (glycols) inside is sucked up, and the wick 3 is ignited to burn the liquid fuel. When extinguishing the flame at the tip of the core 3, the cap 4 can be put on the tip of the core 3 to extinguish the flame.

[0004] The liquid containing glycols as the main raw material contained in the can 2 is classified into Class 4 and Class 3 as defined by the Fire Service Law.
It belongs to petroleum and has a flash point of 150 ° C to 120 ° C, which is higher than that of alcohol solid fuel. Liquid fuel containing glycols as a main raw material is stored in a metal can, and the liquid fuel stored in this can A simple type of burning appliance that burns with a wick protruding from the can can be stocked in large quantities and stored in large quantities.

[0005] In this way, the liquid fuel of glycols is supplied to the can 2
Since the flash point of the liquid fuel used is 150 ° C to 120 ° C, which is higher than that of alcohol solid fuel, and it is difficult to ignite the liquid fuel directly, Is taken up and burned at the core. For this reason, when the combustion device that stores the liquid fuel in the can is accidentally turned over, the liquid fuel stored in the can rarely flows out.
Even if the liquid fuel stored in the can flows out, the flash point is high, so that the discharged liquid fuel does not immediately ignite, and there is very little fear that the flame spreads as compared with the alcohol solid fuel. Therefore, it is possible to easily move the combustion appliance (can) containing the liquid fuel.

[0006]

In the case of keeping the heat of a cooked dish using such a burning device for liquid fuel in a can, a strong heat power is required at first, but if the cooked dish is reduced, the heat is kept low. Will no longer require strong firepower.

However, in a conventional liquid fuel combustion device in which a liquid fuel is stored in a can, once the wick 3 is lit, it burns with a constant thermal power until the fuel runs out, and the thermal power Could not be adjusted.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heat-adjustable liquid fuel combustion apparatus which can obtain a strong heat at first and can reduce the heat after a certain period of time.

[0009]

According to a first aspect of the present invention, there is provided a combustion apparatus for a liquid fuel capable of adjusting a heat power, comprising a container having an opening at an upper end, and glycols contained in the container. A liquid fuel as a raw material, an inner lid that fits into the opening of the container and closes the opening, and is attached to the inner lid, the tip of which protrudes outward and the rear end of which is inserted into the liquid fuel in the container. It is composed of a synthetic paper made of ceramic to be immersed, arranged in a non-contact state, and constituted by two cores provided with different lengths of the rear end to be immersed in the liquid fuel and a lid body covering the inner lid. is there. With this configuration,
According to the first aspect of the invention, a strong thermal power is initially obtained,
After a certain period of time, the heat can be reduced.

[0010] According to a second aspect of the present invention, there is provided a combustion apparatus for a liquid fuel capable of adjusting a heat power, wherein a ceramic synthetic paper forming a double core is made of a composite material of silica and alumina, and a glass formed in a linear shape. It is formed by mixing cellulose and shaping into a paper shape to a predetermined thickness. With this configuration, according to the second aspect of the present invention, since the core can be formed in a paper shape, the shape of the core can be freely configured, and it is not necessary to trim the glass fiber, and the glass fiber can be used. It is possible to prevent fine dust from flying out and prevent a decrease in workability.

[0011] In a third aspect of the present invention, there is provided an apparatus for burning liquid fuel capable of adjusting a heat power, wherein two cores are provided so as to face each other. With this configuration, according to the third aspect of the present invention, a strong heat and a weak heat can be obtained as one flame.

A liquid fuel combustion device capable of adjusting the heat power according to the fourth aspect of the invention is provided with two cores adjacent to each other. With this configuration, according to the fourth aspect of the invention, it is possible to obtain a wide range of strong and weak flames.

[0013]

Embodiments of the present invention will be described below. 1 to 6 show an example of an embodiment of a liquid fuel combustion device according to the present invention. In the figure, a combustion apparatus 10 includes a container 11 and a liquid fuel 12.
, An inner lid 13, two cores 14 and 15, and a lid 16.

As shown in FIGS. 3 and 4, the container 11 is formed of a cylindrical can having a closed lower end. The container 11 is made of a material that does not cause a chemical reaction with the liquid fuel 12, for example, a metal, and has an opening 17 at an upper end.
Two peripheral edges 19 and 20 are formed. This periphery 19,
Reference numeral 20 is for tightly fitting the lid 16, and has a height slightly lower than that of the peripheral end 18. This is lid 1
When the cover 6 is fitted to the peripheral edges 19 and 20, the lid 16 is
This is so as not to protrude beyond 8.

The liquid fuel 12 is a liquid fuel containing glycols as a main raw material. As shown in FIG. 2, an appropriate amount (the maximum amount that does not cause a problem even if sealed in the container 11) is stored in the container 11. It has become. Glycols are a general term for aliphatic compounds (dihydric alcohols) having two hydroxyl groups in one molecule represented by ethylene glycol, and are liquid at room temperature and are flammable substances having alcohol properties. It is.

The inner lid 13 is provided so as to fit into the opening 17 of the container 11 and close the opening 17. The inner lid 13 is formed in a petri dish shape and has a flange 21 at the peripheral end.
Are formed. Further, two openings 22 and 23 formed in a rectangular shape are provided at positions passing through the center point of the inner lid 13. The opening 22 is formed with a flange-shaped projecting cylinder 24 projecting downward from the opening 22. The core 14 is fitted in the opening 22, and the protruding cylinder 24 is for guiding the core 14 fitted in the opening 22 for stable insertion. Further, a flange-shaped protruding cylinder 25 protruding downward from the opening 23 is formed in the opening 23. In this opening 23,
The core 15 is fitted, and the projecting cylinder 25 is
This is for guiding the core 15 fitted to the to stably insert it.

The core 14 and the core 15 are made of ceramic synthetic paper, and the core 14 is tightly fitted in the opening 22 of the inner lid 13. That is, the tip of the core 14 projects outside from the inner lid 13, and is immersed in the liquid fuel 12 stored in the container 11. In addition, the core 15 is
Are tightly fitted in the openings 23 of the first and second openings. That is, this core 1
5 is immersed in the liquid fuel 12 housed in the container 11 with the tip protruding outside from the inner lid 13. And
The cores 14 and 15 are formed to have the same thickness, and the cores 14 and 15 have different lengths. That is, the length of the wick 14 immersed in the liquid fuel 12 stored in the container 11 is half the length of the wick 15 immersed in the liquid fuel 12 stored in the container 11. I have. Therefore, the heating power when the wick 14 and the wick 15 are ignited is twice the heating power when igniting only the wick 14 and the heating power when only the wick 15 is ignited.

The length of the wick 14 immersed in the liquid fuel 12 stored in the container 11 is half the length of the wick 15 immersed in the liquid fuel 12 stored in the container 11. When the liquid fuel 12 accommodated in the container 11 is burned, and the portion of the wick 14 accommodated in the container 11 is not immersed in the liquid fuel 12 as shown in FIG. No more liquid fuel 12 is drawn into the wick 14 and the flame of the wick 14 extinguishes. This reduces the firepower by half. As described above, the heating power can be adjusted after the elapse of a predetermined time.

The length of the wick 14 immersed in the liquid fuel 12 stored in the container 11 is set to one third of the length of the wick 15 immersed in the liquid fuel 12 stored in the container 11. When the length is set, after the ignition, the wick 14 and the wick 15 can be halved in thermal power in one third of the time when the wick 14 and the wick 15 are used. By adjusting the length of the core 14 immersed in the liquid fuel 12 stored in the container 11, the thermal power can be adjusted over time. In this way, by adjusting the heating power to a value, for example, half after a certain period of time, fuel can be saved, and the fuel can be saved, so that the container can be made compact.

Further, by adjusting the length of the wick, it is possible to freely set the time of the high heat, and the length of immersion in the liquid fuel 12 contained in the container 11 of the wick 14 can be set. In addition, the time of the high heat is adjusted according to the amount of the liquid fuel 12 consumed. Therefore, the core 14
And liquid fuel 1 consumed by igniting wick 15
The time until the liquid surface of No. 2 is no longer immersed in the core 14 is the time of the high heat.

In this embodiment, an example in which two cores are provided is shown. However, three cores may be provided. In this case, the heating power is changed stepwise by changing the length of the three cores. It is suitable for use in warming cooked dishes stored in large containers at hotels, inns and party venues.

The ceramic synthetic paper constituting the cores 14 and 15 is made of silica (SiO ₂ ) and alumina (Al
Glass and cellulose formed in a linear shape are mixed into a composite material of ₂ O ₃ ), and the mixture is sieved into a paper shape to form a predetermined thickness. Although the thickness of the ceramic composite paper constituting the cores 14 and 15 is not particularly limited, it is most suitable to be formed to a thickness of about 3.00 m / m in consideration of suction of liquid fuel and the like. . By forming the core 14 from the ceramic composite paper in this way, the core 14 and the core 15 are excellent in heat resistance, and no gas or an unpleasant odor is generated from the core 14 or the core 15 by heating. A core having a small change in strength afterwards can be formed. The heating power of the burner 10 is determined by the size of the area of the wicks 14 and 15 protruding outside the inner lid 13, and the area of the wicks 14 and 15 protruding outside the inner lid 13. The thickness can be ensured by laminating a plurality of sheets of ceramic synthetic paper formed into a predetermined thickness (for example, 3.00 m / m).

The cores 14 and 15 for forming a sheet of ceramic synthetic paper into a rectangular shape can be easily punched, so that the cores can be formed in any shape and the heat conduction can be achieved. The efficiency is low, the generation of dust is small, and fine glass fiber dust can be easily handled without flying. The glass used as the ceramic binder forming the cores 14 and 15 becomes porous, can suck up liquid, and has the same effect as the glass fiber core.

The lid 16 covers the inner lid 13, and has a peripheral edge 26 that protrudes downward in a ring shape inward from the peripheral end as shown in FIGS. This periphery 26
Has a function of fitting between the peripheral edge 19 and the peripheral edge 20 of the container 11, covering the inner lid 13 and sealing.

With this configuration, the lid 16 is removed from the container 11 of the combustion apparatus 10, the core 14 and the core 15 attached to the inner lid 13 are exposed, and the core 14 and the core 15 are sucked up. The ignited liquid fuel 12 is fired. This core 1
4. When the wick 15 is ignited, the combustion spreads to the whole of the wick 14 and the wick 15 exposed to the outside from the inner lid 13, and the combustion area is the entire exposed area of the wick 14 and the wick 15 exposed to the outside of the inner lid 13. Range. Therefore, in order to increase the heating power of the burning appliance 10, the exposed area of the core 14 and the core 15 exposed to the outside of the inner lid 13 may be increased.

[0026]

According to the first aspect of the present invention, it is possible to obtain a strong thermal power at first, and to reduce the thermal power after a lapse of a predetermined time.

According to the second aspect of the present invention, since the core can be formed in a paper shape, the shape of the core can be freely configured, and it is not necessary to trim the glass fiber, and the fine dust of the glass fiber can be reduced. Can be prevented from flying off, and a decrease in workability can be prevented.

According to the third aspect of the present invention, a strong heat and a weak heat can be obtained as one flame.

According to the fourth aspect of the present invention, it is possible to obtain a wide range of strong and weak flames.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing one embodiment of a combustion appliance using a liquid fuel according to the present invention.

FIG. 2 is a cross-sectional view of a combustion appliance using the liquid fuel shown in FIG.

FIG. 3 is an overall perspective view of the container shown in FIG.

FIG. 4 is a schematic central sectional perspective view of the container shown in FIG. 3;

FIG. 5 is an overall perspective view of the inner lid shown in FIG.

FIG. 6 is a view showing a state in which one of the wicks is not immersed in the liquid fuel in the burning appliance using the liquid fuel shown in FIG. 1;

FIG. 7 is an overall perspective view of a conventional combustion device using a liquid fuel.

[Explanation of symbols]

10 …………………………………………………………………………………………………………………………………
Container 12 ………………………………… Liquid fuel 13 …………………………………………………………………
Inner lid 14 …………………………………………………
… Core 15 ……………………………………………………
… Core 16 …………………………………………………
Lid 17 .............................. Aperture 18 ........................................ …
Peripheral end 19, 20 ..................................................................
Perimeter 21 …………………………………………… Flanges 22, 23 ……………………………………………………
Opening 24, 25 ………………………………… Projecting cylinder 26 ………………………………………………………
Margin

Claims (4)

[Claims] 1. A container having an opening formed at an upper end, a liquid fuel containing glycols as a main raw material contained in the container, and an inner lid which fits into the opening of the container and closes the opening. And a ceramic synthetic paper attached to the inner lid, the tip of which protrudes outside and the rear end of which is immersed in the liquid fuel in the container, is arranged in a non-contact state, and is immersed in the liquid fuel. A fuel-adjustable liquid fuel combustion device comprising two cores having different lengths of ends and a lid covering the inner lid. 2. The ceramic synthetic paper forming the two cores is formed by mixing glass and cellulose formed in a linear shape into a composite material of silica and alumina, and forming the mixture into a paper shape to form a predetermined thickness. 2. The apparatus for burning a liquid fuel according to claim 1, wherein 3. The combustion device for heat-adjustable liquid fuel according to claim 1, wherein the two cores are provided so as to face each other. 4. The apparatus for burning a heat-adjustable liquid fuel according to claim 1, wherein the two cores are provided adjacent to each other.