JPS6329728Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a novel heat-generating structure used for heating and volatilizing heat insulating agents, fragrances, other drugs, etc., for example. More specifically, the present invention relates to a heat generating structure that can easily generate heat to a constant temperature by combining a special container and contents (heat generating composition).

<Prior art and its problems> Several proposals have been made regarding structures that heat and evaporate chemicals such as insecticides and fungicides using the heat of hydration of calcium oxide, but none of these have been proposed. This relates to a structure that generates heat by injecting water into calcium. However, such a heating element that requires external water injection is not only inconvenient to use, but also difficult to adjust the temperature of the heat generated.

In addition, component A, which consists of granules of caustic soda and caustic potash, and component B, which consists of granules of sulfate containing water of crystallization, are stored separately in an inner bag so that they do not come into contact with each other, and the boundary between the two components is tied together. It is also known that the binder is untied at the time of use, the two components are mixed, and heat is generated through an exothermic reaction of dissolution of caustic soda and caustic potash, followed by an exothermic reaction of neutralization. However, caustic soda and caustic potash not only have strong alkalinity and require special care when handling;
When using the exothermic agent stored in the bag, it is necessary to take out the inner bag, untie the binding, and rub the bag by hand each time, which is inconvenient in use.

<Purpose of the invention> The present invention does not have the above-mentioned problems and provides a heat-generating structure that can easily generate heat to a predetermined temperature by simply rotating and shaking the container without having to pour water or unravel the binding part. The purpose is to provide

<Structure of the invention> The present invention achieves the above-mentioned object. Two cylindrical containers are concentrically and rotatably joined,
Both cylindrical containers are partitioned so that approximately half of the end face on the joint side is an opening, and a substantially semicircular communication hole is formed at the joint when at least one of the containers is rotated. , and in one container
(a) Calcium oxide powder with a particle size of 2 to 80 meshes is placed in the other container, and (b) crystalline water, which is solid at room temperature and has a particle size smaller than 20 meshes, generates heat when it comes into contact with calcium oxide. Powder of the contained compound is further placed in one or both containers (c)
A heat-generating structure containing a compound that melts at a temperature lower than the maximum temperature that generates heat when the two components are brought into contact, and that is solid at room temperature and does not react with either of the components (a) and (b). be.

<Example> Next, an example of the heat generating structure of the present invention will be explained with reference to the accompanying drawings.

FIG. 1 shows a sectional view of the heat generating structure, and FIG. 3 shows a perspective view thereof. The two upper and lower cylindrical containers 1 and 2 are joined concentrically so that they can rotate with the center (joint) as the border, and the joint is a semicircular shape of the upper cylindrical container 1. A lower partition plate (bottom) 2 of the lower cylindrical container 2 and a semicircular upper partition plate (lid) 4 of the lower cylindrical container 2.
It is divided by. As shown by diagonal lines in the storage space in the upper container, (a) calcium oxide powder, which is one component of the heating element, is
The storage space in the lower container stores the other component (b) powder of a crystalline water compound that is solid at room temperature and has the effect of generating heat when it reacts with calcium oxide. (c) Both components (a) and (b) melt at a temperature lower than the maximum temperature that generates heat when they come into contact with one or both containers, and both components (a) and (b) Store a compound that is solid at room temperature and does not react with any of the following. In this state, even if the container is shaken, components (a) and (b) will not come into contact with each other, so the properties of both components will not be impaired during long-term storage. Of course, the upper and lower components (a) and (b) may be reversed and replaced. In other words, component (b) is placed in the storage space in the upper container, and component (a) is placed in the storage space in the lower container.
Components may be stored. Moreover, there is no problem even if the entire structure shown in FIG. 1 is used in reverse.

In use, as shown in FIG. 2, the semicircular partition plates 3 and 4 are separated by rotating the upper container 1, the lower container 2, or both (about 180° rotation). overlap to form a semicircular opening, through which the upper and lower storage parts communicate. Therefore, by shaking the container up and down in this state, component (a) stored in the space in the upper container and component (b) stored in the space in the lower container are mixed. It starts to generate heat upon contact.

FIG. 4 is a perspective view showing the upper and lower containers shown in FIGS. are connected to each other as shown in FIGS. 1 to 3, so that they can rotate relative to each other.

The calcium oxide component (a) used in the present invention has a particle size of 2 to 80 mesh, preferably 3 to 20 mesh. Particles with a particle size within this range easily generate heat when mixed with component (b) described below.

Specific examples of crystal water-containing compounds that are solid at room temperature and generate heat when they come into contact with calcium oxide, the other exothermic component (component (b)), include sulfates, nitrates, phosphates, carbonates of various metals, Examples include hydrated salts of inorganic compounds selected from silicates, halides, oxides, hydroxides, and the like. Preferred specific examples of such crystal water-containing compounds include sodium sulfate decahydrate [Na ₂ SO ₄ .10H ₂ O], manganese sulfate heptahydrate [MnSO ₄ .7H ₂ O], aluminum sulfate hydrate [Al ₂ (SO ₄ ) ₂・18H ₂ O], calcium nitrate tetrahydrate [Ca(NO ₃ ) ₂・4H ₂ O], aluminum nitrate nonahydrate [Al ₂ (NO ₃ ) ₃・9H ₂ O] , magnesium nitrate hexahydrate [Mg(NO ₃ ) ₂・6H ₂ O], ferric nitrate nonahydrate [Fe(NO ₃ ) ₂・9H ₂ O], nickel nitrate hexahydrate [Ni( NO ₃ ) ₂・6H ₂ O], cobalt nitrate hexahydrate [Co(NO ₃ ) ₂・6H ₂ O], copper nitrate hydrate [Cu(NO ₃ ) ₂・3H ₂ O, Cu(NO ₃ ) ₂・6H ₂ O], sodium hydrogen phosphate hydrate [Na ₂ HPO ₄・12H ₂ O],
Sodium carbonate decahydrate [Na ₂ CO ₃・10H ₂ O], orthosilicic acid [SiO ₂・2.5H ₂ O・H ₄ SiO ₄ ], pyrosilic acid [SiO ₂・1.5H ₂ O, SiO ₂・2.5H ₂ O], silicic acid hydrates such as meta-silicic acid [SiO ₂・0.5H ₂ O], magnesium chloride tetrahydrate [MgCl ₂・4H ₂ O], calcium chloride hexahydrate [CaCl ₂・6H ₂ O], iron chloride hydrate [FeCl ₂・4H ₂ O, FeCl ₃・6H ₂ O], manganese chloride tetrahydrate [N Cl ₂・4H ₂ O], nickel chloride hexahydrate [NiCl _{2.6H 2} O], copper bromide hexahydrate [CuBr _{2.6H 2} O], and molybdenum oxide hydrate [MoO _{3.2H 2} O]. Among these, particularly preferred examples include sodium sulfate 10
hydrate, silicic acid hydrate, sodium carbonate decahydrate, sodium hydrogen phosphate hydrate, manganese sulfate hydrate, aluminum sulfate hydrate, molybdenum oxide hydrate, especially sodium sulfate.
decahydrate, silicic acid hydrate and sodium carbonate 10
Hydrates are the most preferred example because they are inexpensive and easily available.

On the other hand, component (b) preferably has a particle size smaller than 20 meshes, particularly preferably smaller than 30 meshes.

Furthermore, in the present invention, the component (c) is either the component (a) or the component (b), or the component (a) and the component (b).
(b) is mixed with both components.

The component (c) has the function of controlling the temperature at which heat is generated and maintaining the temperature at a desired level when the components (a) and (b) are mixed and brought into contact. Thus, component (c)
If the components (a) and/or (b) are mixed in advance and the components (a) and (b) are mixed at the time of use, (c)
The temperature does not rise above the temperature at which the component compound melts, and can be maintained at approximately the melting temperature for a long time. Therefore, component (c) functions as a temperature control agent.

Component (c) is preferably one that melts at a temperature of 40 to 300°C, particularly preferably one that melts at a temperature of 60 to 250°C. Component (c) may be either an inorganic compound or an organic compound, but organic compounds are preferred. Suitable organic compounds include, for example, hydrocarbons, esters, ethers, and ketones, and in addition to these, high molecular weight polymers may also be used.

Specific examples of these are given below. The inside of the cutlet indicates the melting temperature (℃) of the substance, but if the following is used as component (c), the exothermic temperature can be controlled to a temperature close to the melting temperature, so it can be adjusted according to the desired exothermic temperature. (c) Component may be selected appropriately.

(i) Hydrocarbons: For example, transstilbene (124), chrysene (225), anthracene (216), 9,10 dihydroanthracene (108), 1-methylanthracene (86), diphenyl (70.5), 4,4 '-dimethyldiphenyl (125), naphthalene (80), 2,3-dimethylnaphthalene (104), 2,6-dimethylnaphthalene (110), 2,7-dimethylnaphthalene (96), di-α-naphthylmethane ( 109), acenaphthene (95), (ii) Esters: For example, phenyl benzoate (70), dimethyl isophthalate (71), dimethyl terephthalate (141),
Acetyl-4-biphenyl (88), (iii) Ethers: For example, methyl-β-naphthyl ether (75), (iv) Ketones: For example, dimethylbenzophenone (98), dichloroacetone (42), The particle size of these component (c) may be within approximately the same range as that of component (b) described above.

In the present invention, the amount of component (b) relative to component (a) is not particularly limited, but the amount of component (b) relative to component (a) is not particularly limited.
If the amount of the component is too small, it will be difficult to generate heat or the temperature reached will be low, making it uneconomical. On the other hand, if it is too large, the temperature reached will be too low, so a value within a certain range is preferable. for example
The amount of component (b) per mole of component (a) is in the range of 10 ^-8 to 50 moles, preferably in the range of 10 ^-2 to 30 moles, particularly preferably in the range of 2 x 10 ^-2 to 25 moles.

In addition, the ratio of component (c) is 1/1/by weight of component (a).
A range of 5 to 5 times, preferably 1/4 to 4 times, particularly 1/3 to 3 times is desirable.

In addition, the heat generating structure of the present invention allows the diameter, height, and size of the container to be arbitrarily selected depending on the application, and a certain part of the structure can be used as a heat transfer surface, and the rest can be effectively kept warm. It is advantageous to use For example, part or all of the outer surface such as the bottom or side surfaces of the lower container 2 can be used as a heat transfer surface, and the upper surface and side surfaces of the upper container 1 can be used as heat retention surfaces.

When using the heat transfer surface and heat retention surface separately as in this example, it is optional to select the materials of containers 1 and 2, and to use heat insulating material on the outside of the heat retention part, but in either case, the Containers 1 and 2 in front and back
must be able to rotate relative to each other.

<Function> In the heat generating structure of the present invention, when heat generation is not required during storage or transportation, the upper and lower containers are separated as shown in Figs. 1 and 3, and (a), (b) Hold both components so that they do not come into contact with each other, and when in use, rotate the container to change the relative position by approximately 180° as shown in Figure 2.
A semicircular communication hole is formed at the joint of both containers.
In this state, for example, by shaking it up and down several times, the components (a), (b), and (c) that were stored separately will mix uniformly with each other, and the reaction between the two components will cause Fever occurs.

In this case, in order to easily mix both components, each component should be (c) in cylindrical containers 1 and 2 as shown in FIGS.
It is desirable to leave a certain amount of space (for example, about 20%) including the ingredients when storing the items.

<Effects> In the present invention, heat generation is obtained by mixing (a) calcium oxide powder with a specific particle size and (b) crystal water-containing compound powder that is solid at room temperature, so there is no need for water injection or ventilation. During use, heat can be easily generated by simply rotating and shaking the container. Moreover, by selecting the type of component (c) in advance, the exothermic temperature can be controlled arbitrarily. In addition, in this invention, each component is stored in separate containers at the top and bottom so that they are not mixed before use, and when used, the contents of the two containers can be mutually distributed by the extremely simple operation described above. , generates heat to a predetermined temperature.

Thus, the heat generating structure of the present invention can be used as a heating element for heating and volatilizing insecticides, bactericides, attractants, rodenticides, cockroach killers, etc., heat-dissipating pest control agents, etc., or for thawing frozen foods, emergency use, or portable use. It can be used as a variety of heat sources.

[Brief explanation of drawings]

1 and 2 are cross-sectional views showing the heat generating structure of the present invention before and during use, respectively, FIG. 3 is a perspective view of the structure shown in FIG. 1, and FIG. FIG. 3 is an exploded perspective view of the upper and lower containers in the illustrated structure. In each figure, 1 is the upper cylindrical container, 2 is the lower cylindrical container, 3 is the lower partition plate of the upper cylindrical container 1, 4 is the upper partition plate of the lower cylindrical container 2, a
represents the exothermic agent component (a), b represents the exothermic agent component (b), and c represents the exothermic agent component (c).

Claims (1)

[Scope of utility model registration request] Two cylindrical containers are concentrically and rotatably joined, and each cylindrical container has an opening in approximately half of the end face on the joint side, and when at least one of the containers is rotated, approximately half of the end face on the joint side is opened. It is partitioned to form a semicircular communication hole, and one container contains (a) calcium oxide powder with a particle size of 2 to 80 mesh, and the other container contains (b) calcium oxide powder. When the granular material of a compound containing water of crystallization, which is solid at room temperature and has a particle size of less than 20 meshes and which generates heat when it comes into contact with calcium, is further brought into contact with one or both containers of (c) both of the above components. A heat-generating structure containing a compound that melts at a temperature lower than the maximum temperature at which heat is generated and is solid at room temperature and does not react with either of the components (a) and (b).