JPS64777Y2 - - Google Patents

Description

[Detailed description of the invention] This invention was created for the purpose of using a flat ceramic exothermic reaction plate that self-heats through oxidation reaction to heat and gasify solid pesticides, solid aromatics, etc. It is what was done.

A well-known solid insecticide, for example, a pine-shaped pyrethroid insecticide, is gasified when heated and exhibits an insect repellent or insecticidal effect. As the solid aromatic agent, for example, a powder of a luxury item is solidified and the fragrance of the luxury item is generated by heating.

Conventionally, a normal power source has been used as a heating source for the solid insecticide, and a mechanism has been adopted in which a mat of the solid insecticide is placed tightly on a hot plate that generates heat using electricity, and is gasified. In the outdoors, where it is difficult to secure a power source, the problem is that there is no suitable heating source for gasification other than the power source.
Despite the necessity, it has not yet become widely used.

The present invention relates to a heating unit that uses a flat ceramic exothermic reaction plate that generates heat by itself through an oxidation reaction.This kind of small and flat exothermic reaction plate heats solid insecticides, solid fragrances, etc. such as those mentioned above. It is expected to be in very high demand as a power-free heat source for gasification, and its practical value is extremely high in that it enables the outdoor application and portable use of solid insecticides and solid fragrances. There is something.

Ceramic with a porous structure is used as the base material of the reaction plate that generates heat through the oxidation reaction. When this ceramic supports an oxidation catalyst such as platinum (hereinafter simply referred to as "oxidation catalyst") and is brought into contact with an organic volatile agent such as alcohol or butane in the air, it undergoes a violent oxidation reaction and becomes red hot in a short period of time. Therefore, it is possible to easily obtain a heating temperature of about 100°C to 200°C, which is the gasification temperature of the solid insecticide, solid aromatic material, etc.

In the present invention, a flat heat-generating substrate 1 is formed from the ceramic described above, and an oxidation catalyst layer 2 made of platinum or the like is formed on the surface of the ceramic heat-generating substrate 1 to form a rectangular ceramic heat-generating reaction plate 3. It is fitted into a holder 6 consisting of a frame body so that its edges are integrally supported, and a reaction gas introduction port 6d is formed at the frame opening of the frame body to expose the lower surface of the reaction plate. A heat generating unit is provided with a mounting piece for assembling it into the organic volatile agent holding container, which is small in size and capable of efficiently generating heat, and which is conveniently integrated into the reaction container.

The oxidation catalyst layer 2 is formed by coating or impregnating the surface of the ceramic heat generating substrate 1, and is formed on the entire surface of the ceramic heat generating substrate 1 as shown in FIG. 1A. As another example, as shown in FIG. 1B, the oxidation catalyst layer 2 is not formed on the upper surface 1a of the ceramic heating substrate 1 on which the solid insecticide is placed, but the base material surface is exposed. 3 shows a ceramic exothermic reaction plate on which an oxidation catalyst is supported as described above.

As mentioned above, the ceramic exothermic reaction plate 3
When exposed to a mixture of a volatile gas of an organic volatile agent (not shown) such as alcohol or butane and air, it reacts violently and generates self-heating.
The entire area becomes red hot.

Mats 4, such as solid insecticides and solid aromatics, are
The upper surface of the ceramic exothermic reaction plate 3 is placed on the mounting surface 3a.
The above ceramic exothermic reaction plate 3 is placed on top of the ceramic exothermic reaction plate 3 and fixed tightly with appropriate holding means.
It is directly heated and gasified.

FIG. 2 shows an example in which a mat accommodating recess 5 is formed in the mat mounting surface 3a of the exothermic reaction plate 3 explained in FIGS. 1A and 1B, and the mat 4 is housed in the mat accommodating recess 5. This figure shows a case in which a ceramic heat-generating substrate 1 is formed and processed into a shape that can be heated.

Furthermore, as shown in FIGS. 3 and 4, the ceramic exothermic reaction plate 3 is held in a holder 6 formed of a frame. The holder 6 holds the ceramic exothermic reaction plate 3 at its lower part, and defines a storage and heating space 7 for a mat 4 such as a solid insecticide at its upper part.

That is, as shown in FIGS. 3 and 4, the holder 6 is shaped like a rectangular frame, and a support piece 6a supporting the edge of the lower surface 3b of the ceramic exothermic reaction plate from the lower edge of the holder 6 is formed.
The ceramic exothermic reaction plate 3 is fitted into the frame, the lower edge of the exothermic reaction plate is supported by the supporting piece 6a, and the edge of the mat-mounted surface of the ceramic exothermic reaction plate is supported under the support piece 6a. The exothermic reaction plate 3 and the holder 6 are made into an integral structure by being engaged with each other, and an opening for introducing a mixed gas of the volatile gas of the organic volatile agent and air, that is, a reactive gas, is formed at the frame mouth of the frame body. 6d, and the lower surface of the exothermic reaction plate 3 is exposed in the opening area for introduction of the reaction gas. The holder 6 is made of a molded product made of heat-resistant synthetic resin, which can withstand the heat generated by the ceramic exothermic reaction plate 3 and is advantageous in terms of manufacturing.

Further, in the frame forming the holder 6, a space 7 for storing and heating a solid insecticide is formed on the ceramic exothermic reaction plate 3, so that the mat 4 is accommodated in the frame forming the holder 6. While placed on the mat mounting surface 3a of the ceramic exothermic reaction plate 3, it is closely fixed to the ceramic exothermic reaction plate 3 with a mat presser 8.

The mat presser 8 is made by bending an elastic wire into a U-shape as shown in the figure, and attaching the base end 8a to the holder 6.
It is rotatably supported on a mounting piece 9 formed on one side 6b, and the tip 8b can be freely engaged and detached from a locking part 10 formed on the other side 6c of the holder 6. Bend it downward into a dogleg shape,
A presser portion 8c is formed at the bent portion to elastically press the upper surface of the mat 4, and the mat 4 can be attached and detached by opening and closing the mat presser 8.
By using a heat generating unit having a body structure in which the ceramic exothermic reaction plate 3 is held in the holder 6 consisting of a frame as described above, damage to the ceramic exothermic reaction plate 3 can be prevented and the reaction plate 3 can be It can be easily incorporated into a reaction vessel in a state that ensures proper reaction.

The heat-generating unit containing the ceramic heat-generating reaction plate 3 is attached to a container (not shown) containing an organic volatile agent (either solid or liquid) using a mounting piece 11 provided on the body forming the holder 6. The organic volatile agent is volatilized from below and introduced together with air through the reaction gas introduction opening 6d of the frame, so that it hits the lower surface 3b of the ceramic exothermic reaction plate 3 exposed in the opening area. The exothermic reaction is promoted on the entire surface of the reaction plate. Further, an opening/closing means (not shown) for cutting off and supplying the volatile agent is provided between the exothermic reaction plate 3 and the organic volatile agent to control the stop and start of heat generation.

As explained above, the heat generating unit functions well as a carrier and protector for the flat and fragile ceramic heat generating reaction plate in the frame forming the holder, while also being incorporated into the reaction vessel. It can be suitably used as an exothermic reaction means.

By incorporating the above exothermic unit into the reaction vessel, it can effectively function as a reaction unit between the flat exothermic reaction plate and the organic volatile agent. A small, simple, and high-performance internal assembly of the reaction vessel allows for efficient and exothermic reaction by introducing the reaction gas appropriately and promptly, inducing an active reaction on the lower surface of the reaction plate exposed in the opening area. We can provide a heat generating unit suitable for

As mentioned above, the heat-generating unit provided by the present invention, in which the flat ceramic heat-generating reaction plate is held in the frame as a holder, can be used to produce matted solid insecticides, solid fragrances, etc. It can be put to practical use as a heating source to stably heat and gasify this in a reaction vessel, and it can be used to make insecticides and aroma generators smaller and thinner, and it can be used without a power source. Useful as a catalytic heat generating unit.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG.
The figure is a sectional view showing an embodiment of the ceramic exothermic reaction plate, FIG. 1B is a sectional view showing the second embodiment of the same, FIG. 2 is a perspective view of the exothermic unit, and FIG. FIG. 4 is a partially cutaway perspective view showing an embodiment of a heat generating unit in which the heat generating unit is integrated. DESCRIPTION OF SYMBOLS 1... Ceramic heat generating substrate, 2... Oxidation catalyst layer, 3... Ceramic heat generating reaction plate, 3a... Mat mounting surface for solid insecticide, etc., 4... Same mat, 6...
...Holder consisting of a frame body, 6a... Support piece, 6d
...Opening for introducing reactive gas, 11...Mounting piece.

Claims (1)

[Scope of utility model registration request] A ceramic exothermic reaction plate is formed by forming an oxidation catalyst layer of platinum or the like on the surface of a flat ceramic exothermic substrate, a holder consisting of a frame is formed on the other hand, and the ceramic exothermic reaction plate is placed inside the frame forming the holder. The edge of the ceramic exothermic reaction plate is integrally supported by the support piece protruding from the lower edge of the frame, and an opening for introducing reaction gases of organic volatile agent and air is formed at the opening of the frame. A heating device for solid insecticides, etc., characterized in that the lower surface of the ceramic exothermic reaction plate is exposed in the opening area, and the frame is provided with an attachment piece for a container containing an organic volatile agent. Heat generating unit.