JPH11239441A - Self-heating vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-heating vessel capable of extremely rapidly and uniformly permeating water and simply carrying out the smooth heating, etc., by placing the heating vessel in a water vessel, and preventing the vessel from cracking, etc. SOLUTION: This self-heating vessel 1 is designed to heat a material 6 to be heated and obtained by providing a water supply part 8 in at least any one site of a bottom wall 7, a sidewall 9 and an upper wall 5 of a hermetically sealed vessel 2 and sealing a mixture of an exothermic substance 3 capable of generating heat by contact with water with a water absorbent 4 in the interior of the vessel 1. In this case, the water absorbent 4 has a specific gravity comparable to that of the exothermic substance 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-heating container for heating a substance to be heated.

[0002]

2. Description of the Related Art Conventionally, as a method for exterminating sanitary pests in a short time, there is known an extermination method in which an agent containing a foaming agent is killed by evaporating an active ingredient of the agent by utilizing the heat generated by a hydrothermal agent. Have been.

[0003] In this extermination method, a medicine container containing a fumigation drug is arranged in a heating container containing a substance that immediately generates heat upon contact with water, for example, calcium oxide, and the heating container is placed in water. When placed in a container, moisture is allowed to enter through a small hole provided at the bottom of the heat generating container and is brought into contact with the calcium oxide, and the heat generation temperature of the calcium oxide is transmitted to the fumigating agent to evaporate. .

[0004]

However, in the case of the conventional heat generating type using water, a water supply hole is provided in the wall of the heat generating container even if the heat generating container is immersed in a container filled with water at the time of use. This makes it easier to absorb water to some extent, but it is still not enough to quickly and uniformly penetrate the water, and there is a problem that smooth heat generation such as fumigation unevenness of the fumigation agent is not performed. Furthermore, there is a possibility that the inside of the container expands due to the absorption of water, causing the container to burst or crack. In addition, simply filling a certain amount of heating substance may cause insufficient contact between the heating substance and the surface to be heated, so that sufficient heat cannot be supplied, and water is absorbed in the container. There is a possibility that the exothermic substances interfere with each other and collapse, resulting in insufficient thermal efficiency on the surface to be heated, and the expansion of the container may cause cracking of the container.

[0005]

In order to achieve the above object, a self-heating container according to the present invention is provided with a water supply section at least one of a bottom wall, a side wall, and an upper wall of a closed container, and a water supply portion inside the container. And a mixture of a heat generating substance which generates heat upon contact with water and a water absorbing material. Further, the water-absorbing material to be mixed has the same specific gravity as the exothermic substance.

The water supply section in the present invention is not limited to a hole, and may be any such as a water-permeable wall, and is provided at at least one of the bottom wall, the side wall, and the upper wall of the closed vessel. . Providing this water supply section has an effect of preventing the rupture of the closed container. When the water supply part is a hole, the size of the water supply hole is not particularly limited, but in a water supply hole larger than the substance in the closed container, it is preferable to provide a water permeable layer in contact with the water supply hole. Regardless of the size of the water supply section, a water-permeable member such as a net or a cloth sheet having water permeability is provided in contact with the water supply section in order to more quickly and uniformly permeate the water. Accordingly, the water permeable member may be impregnated with a surfactant having good water absorbency.

As the exothermic substance contained in the closed container in the present invention, various known exothermic substances can be used.
For example, calcium oxide, magnesium chloride, aluminum chloride, calcium chloride, iron chloride and the like can be mentioned.

The water-absorbing material contained in the closed container may have a specific gravity similar to that of the exothermic substance in order to obtain a uniform mixture. Can, for example, sawdust, crushed cellulosic material such as paper, pulp, nonwoven fabric, woven fabric, glass wool,
Asbestos, absorbent cotton, and the like. In addition, it is preferable to use pulp or the like having appropriate elasticity and shrinkage for a heat-generating substance that absorbs water such as calcium oxide and expands due to interference with each other due to expansion. And the water absorbing material,
It is in a state of being dispersed in the gap between the heat generating substances in the closed container or in a state of wrapping a part or all of the heat generating substance.

The shape of the water-absorbing material is not limited as long as it can stay in the gap generated when the heating substance is filled, or can partially or completely wrap the material, and may be spherical, cylindrical, rod-shaped, or strip-shaped. And various shapes such as a string shape. The amount of the water-absorbing material is arbitrary as long as the mixture with the exothermic substance is hermetically contained in a container as long as the mixture does not adversely affect the expansion of the mixture or hinder the exothermic efficiency of the exothermic substance.

The exothermic substance and the water-absorbing material are accommodated in a closed vessel, and a water supply section is provided at at least one of a bottom wall, a side wall, and an upper wall of the closed vessel. The moisture quickly and uniformly penetrates through the container through the contact, and comes into contact with the exothermic substance to generate water absorption heat. In addition, when the heating substance and the water-absorbing material are accommodated in a closed container, a space having an appropriate volume is provided in the container, so that the substance collapses due to interference between the heating substances that have absorbed water and expanded, and the container cannot be damaged. Preparable cracks and the like can be suppressed, and heating and evaporation can be performed efficiently.
Further, the fact that the viscosity of calcium oxide is reduced due to collapse during transportation and the heat generation state is deteriorated is solved by a water absorbing material having elasticity and shrinkage. In addition, the above-mentioned water-absorbing material shrinks even when the internal pressure increases, thereby suppressing inadvertent cracking of the container. Therefore, the degree of contact is improved, and the temperature can be raised quickly.

Further, the self-heating container of the present invention is housed together with an openable water storage pack filled with a predetermined amount of water in the container or in a container having an openable upper part, and is provided in a closed container or an open container. Water can also be supplied from the outside of the container by opening it with, for example, a provided needle.

The substance to be heated used in the present invention has conventionally been used for purposes such as pesticides, growth regulators, deodorants, deodorants, bactericides, cosmetics, pharmaceuticals, foods, beverages, liquors and the like. For example, arelesline, dl-T80-
Aresulin, d-T80-aresulin, dl-T100
-Aresulin, d-T100-aresulin, phthalthrine, d-T80-phthalthulin, d-T80-resmethrin, fenvalerate, fenpropatrin, empentrin, fenfluthrin, dl-T80-praletrin, d-T80-praletrin, benfluthrin, Pyrethroid insecticides such as transfluthrin, tefluthrin and etofenprox; organic phosphorus insecticides such as dichlorvos, fenitrothion, diazinon, malathion, and acephate; Agent, methoprene,
Insect growth regulators such as hydroprene, pyriproxyfen, phenoxycarb, etc., chitin synthesis inhibitory insect growth regulators such as diflubenzuron, triflumuron, teflubenzuron, chlorfluazuron, flufenoxuron, hexafluron, cyromazine, hydramethylnon, imidaclobride , Admire, Abamectin, Sulfuramide, various insecticides such as pyrazole compounds, lauryl methacrylate, geranyl crotonate, acetophenone myristate, paramethylacetophenone benzaldehyde, benzyl acetate, benzyl propionate, amylzinamic aldehyde, anisic aldehyde,
Deodorants and deodorants of diphenyl oxide, methyl benzoate, ethyl benzoate, methyl phenylacetate, ethyl phenylacetate, neolin, safrole, sedawood oil, seda rapeseed oil, citronella oil, lavanten oil, petei grain oil, lemongrass oil Various substances can be mentioned. In addition, azodicarbonamide, azobisisobutyronitrile, evaporation aids such as nitrocellulose,
Antioxidants such as BHT and BHA, and various additives are added.

Hereinafter, the present invention will be described in detail with reference to FIGS. 1 to 4, but the present invention is not limited thereto.
FIGS. 1, 2 and 4 are sectional views of a self-heating container in which a hermetically sealed container containing a heating substance and a water absorbing material and a medicine container are combined. FIG. 3 is a cross-sectional view of a self-heating container in which a hermetically sealed container containing a heating substance and a water absorbing material and a medicine container are independent.

In FIG. 1, a self-heating container 1 includes a closed container 2, a heating substance 3 and a water absorbing material 4. The closed container 2 is a container having a cylindrical shape or a rectangular tube shape. A cylindrical space A is provided in the center of the upper wall 5, and the space 6 is filled with the substance 6 to be heated. And
A water permeable wall is provided as a water supply section 8 on the bottom wall 7 of the closed container 2, and the heat generating substance 3 and the water absorbing material 4 are filled in the closed container 2. Then, by immersing the bottom wall 7 of the self-heating container 1 in a water container 10 in which a small amount of water has been previously placed, the water is supplied through the water supply unit 8 provided on the bottom wall 7 and the water absorbing material 4. The heat generating substance 3 generates heat and heats the substance 6 to be heated.

In FIG. 2, a self-heating container 1 includes a closed container 2, a heating substance 3 and a water absorbing material 4. The closed container 2 is a container having a cylindrical shape or a rectangular tube shape. A cylindrical space A is provided in the center of the upper wall 5, and the space 6 is filled with the substance 6 to be heated. And
A hole is provided as a water supply section 8 in the side wall 9 of the closed container 2, and the heat generating substance 3 and the water absorbing material 4 are filled in the closed container 2.
Here, a standing net is laid as a water permeable member 11 on the inner bottom surface of the sealed container 2. This water permeable member 11
Has an effect not only to improve water permeability but also to prevent spilling of heating substances. And the bottom wall 7 of the self-heating container 1
The water supply hole 8 provided in the side wall 9 and the water infiltration member 11
Then, the water penetrates through the container through the water absorbing material 4, the heat generating substance 3 generates heat, and the heating target substance 6 is heated.

In FIG. 3, the self-heating container 1 is composed of a closed container 2, a heating substance 3, a water absorbing material 4, and a container 13 to be heated. The closed container 2 is a container having a cylindrical shape or a rectangular tube shape. A heated substance container 13 having an open top is provided on the upper wall 5. The heated substance container 13 is filled with the heated substance 6. It was made. A hole is provided in the bottom wall 7 of the closed container 2 as a water supply section 8, and the closed container 2 is provided.
The inside is filled with a heating substance 3 and a water absorbing material 4. Here, a cloth sheet is laid as a water permeable member 11 on the inner bottom surface of the closed container 2. As in FIG. 2, this fabric sheet not only has an effect of improving water permeability but also has an effect of preventing spilling of a heating substance. The effect of heating the substance to be heated 6 is the same as in FIG. Further, as shown in FIG. 2, the water supply hole 8 may be provided on the side wall instead of the bottom wall.

Referring to FIG. 4, a self-heating container 1 includes a closed container 2, a heating substance 3 and a water absorbing material 4. Cylindrical spaces A, B, and C are provided on the upper wall 5 of the closed container 2,
The space portions A, B, and C are filled with the substance 6 to be heated. A hole is provided in the bottom wall 7 of the closed container 2 as a water supply section 8, and the heat generating substance 3 and the water absorbing material 4 are filled in the closed container 2. Here, a cloth sheet is laid as a water permeable member 11 on the inner bottom surface of the closed container 2.
As in FIG. 2, this fabric sheet not only has an effect of improving water permeability but also has an effect of preventing spilling of a heating substance. The function of heating the material to be heated 6 is the same as in FIG. 2, and the water supply hole 8 may be provided on the side wall instead of the bottom wall as shown in FIG. In addition, the self-heating container of the present invention can provide several kinds of spaces for filling the substance to be heated 6 so as to release the substance to be heated in multiple directions or to evaporate or heat different kinds of the substance to be heated. .

[0018]

As described above in detail, the self-heating container of the present invention comprises a heat generating substance which generates heat upon contact with water and a water absorbing material having the same specific gravity as the heat generating substance in the closed container. It was done. This results in a state in which the exothermic substance and the water-absorbing material are evenly dispersed in the closed container, the water absorption in the entire container is quickly performed, and the degree of contact between the exothermic substance and the surface to be heated is improved, thereby raising the temperature. Is fast, so that the material to be heated can be efficiently heated and evaporated. In addition, by providing a water supply section and an appropriate space as needed in the closed container, not only the water absorption and the heating efficiency can be improved, but also problems such as cracking of the container can be solved. Furthermore, even when a water supply unit is provided other than the bottom wall of the container, heating and evaporation can be performed efficiently.

[0019]

[Brief description of the drawings]

FIG. 1 is a sectional view of a self-heating container showing a first embodiment of the present invention.

FIG. 2 is a sectional view of a self-heating container showing a second embodiment of the present invention.

FIG. 3 is a sectional view of a self-heating container showing a third embodiment of the present invention.

FIG. 4 is a sectional view of a self-heating container showing a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-heating container 2 Closed container 3 Heat generating substance 4 Water absorbing material 5 Top wall 6 Heated substance 7 Bottom wall 8 Water supply part 9 Side wall 10 Water container 11 Water permeable member 12 Water 13 Heated substance container 14 Internal space

Claims (3)

[Claims] 1. A self-heating container for heating a substance to be heated, wherein a water supply portion is provided at at least one of a bottom wall, a side wall, and an upper wall of the closed container, and the inside of the container comes into contact with water. A self-heating container characterized by enclosing a mixture of a heating substance that generates heat and a water absorbing material. 2. The self-heating container according to claim 1, wherein the water-absorbing material has a specific gravity similar to that of the heat generating substance. 3. The self-heating container according to claim 1, wherein an appropriate space is provided when the mixture of the heating substance and the water absorbing material is sealed in the inside of the container.