JP3685986B2 - Liquid fuel burner with adjustable thermal power - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooking appliance for cooking and warming used in hotels, inns, and party venues, and more particularly, to a burning instrument for liquid fuel that can be easily manufactured and that can provide a stable heating power.
[0002]
[Prior art]
Conventionally, alcohol burning fuel stored in metal cans has been used as a combustion appliance for heat preservation of cooked dishes used in hotels, inns and party venues. This canned alcohol solid fuel falls under Class 2 flammable solids as stipulated by the Fire Service Act, and its flash point is as low as 11 ° C, so it is prohibited to stock canned alcohol solid fuel in large quantities as a product. Only a small amount can be stored and placed. Can also be used as a combustion appliance for heat preservation of cooked foods at hotels, inns and party venues, while alcohol solid fuel is burning (while still ignited) and cans containing alcohol solid fuel Careful handling was required when moving the whole.
[0003]
Further, in the case of alcohol solid fuel stored in such a metal can, the combustion state is large at the beginning of use, the combustion flame is large, and as the alcohol solid fuel decreases, the combustion flame becomes small and the thermal power is not stable. Therefore, the purpose of using canned alcohol solid fuel has been limited. Therefore, in recent years, as shown in FIG. 7, a canned liquid fuel in which a liquid fuel mainly composed of glycols is stored in a metal can is excellent in terms of easy handling and stability of thermal power during combustion. Being used from being. In the combustion appliance 1 in which the liquid fuel is stored in a metal can, the liquid fuel of glycols is stored in the can 2, and a core 3 protrudes from the upper center of the can 2. The liquid fuel (glycols) is sucked up and ignited in the core 3 to burn the liquid fuel. When extinguishing the flame at the tip of the lead 3, the cap 4 can be put on the tip of the lead 3.
[0004]
The liquids mainly made of glycols stored in the can 2 belong to the 4th class 3rd petroleums defined by the Fire Service Law, and the flash point is 150 ° C to 120 ° C compared to solid alcohol fuel. A high-priced, simple burner that stores liquid fuel made mainly of glycol in a metal can and burns the liquid fuel stored in the can with a core protruding from the can must be stocked in large quantities. Can be stored and stored in large quantities.
[0005]
In this way, the combustion appliance for storing the liquid fuel of glycols in the can 2 has a flash point of the liquid fuel to be used, which is 150 ° C. to 120 ° C. higher than that of the alcohol solid fuel. Since it is difficult to ignite, a method is used in which a liquid is sucked up using a wick and burned at the wick. For this reason, when the combustion device for storing the liquid fuel in the can is accidentally turned over, the liquid fuel stored in the can rarely flows out, and even if the liquid fuel stored in the can flows out. The liquid fuel that has flowed out does not ignite immediately because of its high flash point, and there is very little concern about the spread of flames compared to solid alcohol fuel. For this reason, it is possible to easily move the combustion appliance (can) containing the liquid fuel.
[0006]
[Problems to be solved by the invention]
In the case of heat insulation of cooked dishes using such canned liquid fuel burning appliances, initially, a strong heating power is required, but when the number of cooked dishes is reduced, a strong heating power is not required for heat insulation. Come.
[0007]
However, in a conventional canned liquid fuel combustion appliance in which a liquid fuel is stored in a can, once the core 3 is ignited, it is burned with a constant thermal power until the fuel runs out, and the thermal power is adjusted. It was impossible.
[0008]
An object of the present invention is to provide a fire power adjustable liquid fuel combustion apparatus capable of obtaining a strong thermal power at first and reducing the thermal power after a certain period of time.
[0009]
[Means for Solving the Problems]
A combustion apparatus for liquid fuel capable of adjusting thermal power according to the first aspect of the present invention includes a container having an opening formed at an upper end thereof, a liquid fuel mainly composed of glycols housed in the container, and the container And an inner lid that closes the opening, and is attached to the inner lid, and is composed of a ceramic synthetic paper that has a front end protruding outside and a rear end immersed in the liquid fuel in the container, It is constituted by two cores arranged in a non-contact state and immersed in the liquid fuel with different lengths of the rear ends and a lid that covers the inner lid.
By comprising in this way, according to invention of Claim 1, a strong thermal power can be obtained initially, and a thermal power can be weakened after progress for a fixed time.
[0010]
According to a second aspect of the present invention, there is provided a fire-controllable liquid fuel combustion apparatus comprising a ceramic synthetic paper forming a double-strand core mixed with silica and alumina composite material and linearly formed glass and cellulose. However, it is formed in a paper-like shape with a predetermined thickness.
By comprising in this way, according to invention of Claim 2, since a core can be formed in paper shape, the shape of a core can be comprised freely, it is not necessary to cut and arrange glass fiber, and glass fiber It is possible to prevent fine dust from flying, and to prevent deterioration of workability.
[0011]
According to a third aspect of the present invention, there is provided a combustion apparatus for liquid fuel capable of adjusting heat power, wherein two cores are provided opposite to each other.
By configuring in this way, according to the invention described in claim 3, it is possible to obtain strong and weak heating power as one flame.
[0012]
According to a fourth aspect of the present invention, there is provided a liquid fuel combustion device with adjustable heat power, wherein two cores are provided side by side.
With this configuration, according to the invention described in claim 4, it is possible to obtain a wide range of strong fire power and weak fire power.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments according to the present invention will be described below.
1 to 6 show an example of an embodiment of a liquid fuel combustion apparatus according to the present invention.
In the figure, the combustion instrument 10 is composed of a container 11, a liquid fuel 12, an inner lid 13, cores 14 and 15 provided in two strips, and a lid body 16.
[0014]
As shown in FIGS. 3 and 4, the container 11 is constituted by a cylindrical can whose bottom is closed. The container 11 is made of a material that does not cause a chemical reaction with the liquid fuel 12, for example, metal. An opening 17 is formed at the upper end, and 2 between the opening 17 and the peripheral end 18. Two peripheral edges 19 and 20 are formed. The peripheral edges 19 and 20 are for closely fitting the lid body 16, and are formed with a height slightly lower than the peripheral end 18. This is to prevent the lid body 16 from protruding from the peripheral end 18 when the lid body 16 is fitted to the peripheral edges 19 and 20.
[0015]
The liquid fuel 12 is a liquid fuel mainly composed of glycols, and 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. ing. These glycols are a general term for aliphatic compounds (dihydric alcohols) having two hydroxyl groups in one molecule typified by ethylene glycol, and are flammable substances that are liquid at room temperature and have properties as alcohols. It is.
[0016]
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 a flange 21 is formed at the peripheral end. In addition, 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-like protruding cylinder 24 that protrudes downward from the opening 22. A core 14 is fitted into the opening 22, and the protruding cylinder 24 is for guiding the core 14 fitted into the opening 22 for stable insertion. The opening 23 is formed with a flange-like protruding cylinder 25 that protrudes downward from the opening 23. A core 15 is fitted in the opening 23, and the protruding cylinder 25 is for guiding the core 15 fitted in the opening 23 in order to be stably inserted.
[0017]
The core 14 and the core 15 are made of ceramic synthetic paper, and the core 14 is closely fitted in the opening 22 of the inner lid 13. That is, the lead 14 protrudes from the inner lid 13 to the outside and is immersed in the liquid fuel 12 accommodated in the container 11. The core 15 is closely fitted in the opening 23 of the inner lid 13. That is, the core 15 has a tip protruding outside from the inner lid 13 and is immersed in the liquid fuel 12 accommodated in the container 11. The core 14 and the core 15 are formed to have the same thickness, and the lengths of the core 14 and the core 15 are different from each other. That is, the length immersed in the liquid fuel 12 accommodated in the container 11 of the core 14 is half the length immersed in the liquid fuel 12 accommodated in the container 11 of the core 15. Yes. Therefore, the thermal power when the core 14 and the core 15 are ignited is the thermal power when only the core 14 is ignited and the thermal power twice as large as the thermal power when only the core 15 is ignited.
[0018]
Further, the length of the core 14 immersed in the liquid fuel 12 accommodated in the container 11 is half the length of the length of the core 15 immersed in the liquid fuel 12 accommodated in the container 11. By doing so, the liquid fuel 12 stored in the container 11 burns, and when the portion of the core 14 stored in the container 11 does not immerse in the liquid fuel 12 as shown in FIG. The liquid fuel 12 is not sucked up, and the flame of the core 14 disappears. This halves the firepower. In this way, the heating power can be adjusted after a certain time has elapsed.
[0019]
Further, the length of the core 14 immersed in the liquid fuel 12 accommodated in the container 11 is set to 1/3 of the length of the core 15 immersed in the liquid fuel 12 accommodated in the container 11. Then, after ignition, it is possible to halve the thermal power at 1/3 of the time when the core 14 and the core 15 are ignited and used. Thus, by adjusting the length immersed in the liquid fuel 12 accommodated in the container 11 of the core 14, the thermal power can be adjusted with time. In this way, it is possible to save fuel by adjusting the heating power to, for example, half, after a certain time has elapsed, and the container can be made compact because fuel can be saved.
[0020]
In addition, by adjusting the length of the lead, it is possible to freely set the time of the strong fire, the length of immersion in the liquid fuel 12 stored in the container 11 of the lead 14 and the consumption. The time of the high fire is adjusted according to the amount of the liquid fuel 12 to be produced. Therefore, the time until the liquid level of the liquid fuel 12 consumed by igniting the wick 14 and the wick 15 is not immersed in the wick 14 is a time of high fire.
[0021]
In this embodiment, an example in which two wicks are provided is shown, but three wicks may be provided. In this case, the thermal power is gradually reduced by changing the length of the three wicks. It is suitable for use in warming cooked dishes stored in large containers at hotels, inns and party venues.
[0022]
The ceramic synthetic paper composing the core 14 and the core 15 is made by mixing linearly formed glass and cellulose into a composite material of silica (SiO ₂ ) and alumina (Al ₂ O ₃ ). It is rolled and formed to a predetermined thickness. The thickness of the ceramic composite paper constituting the core 14 and the core 15 is not particularly limited, but it is most suitable to form a thickness of about 3.00 m / m in consideration of liquid fuel suction. . By configuring the core 14 with the composite paper made of ceramic in this way, the core 14 and the core 15 are excellent in heat resistance, and no gas or no strange odor is generated from the core 14 and the core 15 by heating. A core with little subsequent strength change can be formed.
The heating power of the combustion appliance 10 is determined by the size of the area of the core 14 and the core 15 protruding outside the inner lid 13. The area of the core 14 and the core 15 protruding outside the inner lid 13 is large. This can be ensured by stacking a plurality of sheet-shaped ceramic synthetic papers molded to a predetermined thickness (for example, 3.00 m / m).
[0023]
Further, the core 14 and the core 15 for forming the ceramic synthetic paper formed into a sheet shape into a rectangular shape can be easily formed by punching. Therefore, the core can be formed in any shape, and the thermal conductivity is low. It is easy to handle without generating dust and fine glass fiber dust without flying. The glass used as the ceramic binder constituting the core 14 and the core 15 becomes porous and can suck up the liquid, and the same effect as the core made of glass fiber can be obtained.
[0024]
The lid body 16 covers the inner lid 13, and as shown in FIGS. 1 and 2, a peripheral edge 26 projecting in a ring shape is formed on the inner side from the peripheral end portion. The peripheral edge 26 has a function of fitting between the peripheral edge 19 and the peripheral edge 20 of the container 11 to cover and seal the inner lid 13.
[0025]
Since it is configured in this manner, the lid 16 is removed from the container 11 of the combustion instrument 10, the core 14 and the core 15 attached to the inner lid 13 are exposed, and the liquid sucked up by the tips of the core 14 and the core 15. The fuel 12 is ignited. When the wick 14 and the wick 15 are 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 exposure of the wick 14 and the wick 15 exposed to the outside of the inner lid 13. Covers the entire area. Therefore, in order to increase the thermal power of the combustion appliance 10, the exposed area exposed to the outside of the inner lid 13 of the core 14 and the core 15 may be increased.
[0026]
【The invention's effect】
According to the invention described in claim 1 of the present application, it is possible to obtain a strong heating power at the beginning and to weaken the heating power after a lapse of a certain time.
[0027]
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 cut and arrange glass fibers, and fine dust of glass fibers is blown off. It is possible to prevent the deterioration of workability.
[0028]
According to the invention described in claim 3 of the present application, strong fire power and weak fire power can be obtained as one flame.
[0029]
According to the invention described in claim 4 of the present application, it is possible to obtain a wide range of strong fire power and weak fire power.
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing an embodiment of a combustion apparatus using a liquid fuel according to the present invention.
FIG. 2 is a cross-sectional view of a combustion apparatus using the liquid fuel shown in FIG.
3 is an overall perspective view of the container shown in FIG. 1. FIG.
4 is a perspective view of a substantially central cross section of the container illustrated in FIG. 3. FIG.
5 is an overall perspective view of the inner lid shown in FIG. 1. FIG.
6 is a view showing a state in which one core is not immersed in the liquid fuel in the combustion apparatus using the liquid fuel shown in FIG. 1. FIG.
FIG. 7 is an overall perspective view of a combustion apparatus using a conventional liquid fuel.
[Explanation of symbols]
10 ……………………………………………………… Combustion appliance 11 …………………………………………………………… Container 12 ……………………………………………………… Liquid fuel 13 …………………………………………………………… Inner lid 14 ……………………………………………………………… Core 15 ……………………………………………………………… Core 16 …………………………………………………………… Cover 17 ………………………………………………………… Opening 18 …………………………………………………………… Around edge 19, 20 ………………………………………………… ... Ring 21 ... …………………………………………………… Flange 22, 23 …………………………………………………… Open 24 , 25 ………… .......................................... projecting tube 26 ..................................................................... periphery

Claims (4)

A container with an opening at the top;
A liquid fuel mainly composed of glycols stored in the container;
An inner lid that fits into the opening of the container and closes the opening;
The rear end is attached to the inner lid, the front end protrudes outside, and the rear end is made of ceramic synthetic paper immersed in the liquid fuel in the container, arranged in a non-contact state, and immersed in the liquid fuel. Nijo cores with different lengths,
A combustion apparatus for liquid fuel that can be adjusted in terms of thermal power, comprising a lid that covers the inner lid. 2. The ceramic synthetic paper forming the two cores is formed by mixing glass and cellulose formed into a linear shape into a composite material of silica and alumina, and forming the paper into a predetermined thickness by winding it into a paper shape. A fire-controllable liquid fuel combustion apparatus according to claim 1. The burner for liquid fuel with adjustable firepower according to claim 1 or 2, wherein the two cores are provided opposite to each other. The burner for liquid fuel with adjustable heat power according to claim 1, wherein the two cores are provided adjacent to each other.

Images