JPH018839Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to an oxidation catalyst exothermic mechanism that uses an organic volatile material such as butane or methanol as fuel, and is particularly applicable to a heat source for a fume generator that heats and evaporates insecticides and aromatics. Related.

Prior Art and Problems As shown in Japanese Patent Application Laid-Open No. 58-28221, etc., this type of fume generator volatilizes an organic volatile material in a semi-sealed envelope, and places the volatile combustible gas on the rising air flow path. The heating plate is heated by bringing it into contact with an oxidation catalyst carrier placed on the heating plate to obtain a combustion exothermic reaction, and the insecticide or aromatic agent placed on the heating plate is heated to obtain transpiration, Although it has the advantage of being relatively safe and can achieve the purpose of generating fume regardless of location without the need for ignition with a pine or power supply, it uses an organic volatile material as a highly volatile flammable gas as mentioned above. This is because it volatilizes and rises, creating an opportunity for contact with the oxidation catalyst carrier.
There is a drawback that it is impossible to avoid a situation in which a portion of the flammable gas remains unreacted and becomes an upward current and is dissipated to the outside.

Although these are almost harmless in view of the amount of gas released, they are not healthy, and are accompanied by an odor that causes discomfort to the user. Moreover, products with such performance will also lose their commercial value.

Purpose of the invention The present invention aims to provide a fume generator with an effective structure for suppressing the generation of incomplete combustion gas as much as possible and for performing an efficient combustion exothermic reaction (efficient fuel consumption). That is.

Structure of the Invention In order to achieve the above object, the present invention provides a fume generator that uses an organic volatile material as a fuel and brings the volatile flammable gas into contact with an oxidation catalyst carrier to generate combustion heat and heat a heating plate. A main combustion oxidation catalyst carrier intended for a main combustion reaction with a combustible gas, and a secondary combustion oxidation catalyst carrier intended for a combustion reaction with the combustible gas that has passed through the main combustion oxidation catalyst carrier, and both It is equipped with a heating plate that is heated by a catalyst carrier, and the three components are assembled in a container in a simple, rational and appropriate arrangement, so that the above object can be effectively achieved.

Examples Examples of the present invention will be described below with reference to FIGS. 1, 2, and 3.

In the figure, 1 is a main combustion oxidation catalyst carrier, 2 is a sub-combustion oxidation catalyst carrier, 3 is a heating plate, and 4 is an organic volatile material, and each element is placed in the illustrated order in a container 5 that can collect air. Place it accordingly.

That is, the organic volatile material 4 serving as a fuel is placed at the bottom of the container 5, the main combustion oxidation catalyst carrier 1 is placed above the volatilization surface which is the volatilization path of the organic volatile material 4, and the main combustion oxidation catalyst carrier 1 is The sub-combustion oxidation catalyst carrier 2 is arranged facing the upper part, and the heating plate 3 is arranged close to the upper part of the sub-combustion oxidation catalyst carrier 2.

As mentioned above, the organic volatile material 4 is butane, methanol, alcohol, etc., and the liquid material is impregnated into an absorbing liquid or kept in a solid state.

Further, the sub-combustion oxidation catalyst carrier 2 has a perforated structure in the portion facing the main combustion oxidation catalyst carrier 1,
It is preferable to adopt a structure in which the radiant heat and convection heat from the main combustion oxidation catalyst carrier 1 are supplied to the heating plate 3 without being interrupted. As an example, the by-combustion oxidation catalyst carrier 2 uses a coarse mesh material.

The main combustion oxidation catalyst carrier 1 is made of a honeycomb-shaped ceramic supporting a platinum catalyst, etc., and its ventilation holes 1a are oriented vertically so that rising air flows through them. The sub-combustion oxidation catalyst carrier 2 is provided to effect effective contact with the rising air. Preferably, the sub-combustion oxidation catalyst carrier 2 has an area that can cover the upper space of the main combustion oxidation catalyst carrier 1, and the carrier is a mesh material or other porous material as described above.

FIGS. 2 and 3 show an assembly of a main combustion oxidation catalyst carrier 1, a sub-combustion oxidation catalyst carrier 2, and a heating plate 3 formed in accordance with the above-mentioned purpose.

As shown in the figure, a clamping frame 8 is integrally lowered from the lower surface of the heating plate 3 formed of sheet metal by the same sheet metal processing, and the main combustion oxidation catalyst carrier 1 made of the honeycomb-shaped ceramic is placed within the clamping frame 8. Hold the vent hole 1
A is configured to face the sub-combustion oxidation catalyst carrier 2 and the heating plate 3, and the sub-combustion oxidation catalyst carrier 2 made of a porous material such as the above-mentioned net material is laid on the lower surface of the heating plate 3, and is cut from the heating plate 3. Hold it with the raised claw 6. As a result, a three-member composite assembly is constructed in which the heating plate 3, the main combustion oxidation catalyst carrier 1, and the sub-combustion oxidation catalyst carrier 2 are placed opposite each other. The heating plate 3 has mounting pieces 7 at both ends, which are fixed to the top of the container 5 to mount the entire assembly.

As a result of the above, the organic volatile material is volatilized and raised, and while mixing with air, comes into contact with the main combustion oxidation catalyst carrier 1 on the rising air flow path, causing a violent combustion reaction, and is caused by the radiant heat and convection heat of the heated gas. While heating the heating plate 3, the rising air (exhaust gas, etc.) from the main combustion oxidation catalyst carrier 1 comes into contact with the secondary combustion oxidation catalyst carrier 2 again, and unreacted raw gas of the organic volatile material 4 and incomplete combustion gas The re-combustion of the components is promoted, and the heat generated by the re-combustion further promotes the heating of the heating plate 3. In addition, incomplete combustion gas and unreacted raw gas are reburned to effectively prevent the release of harmful gases or odorous gases. In addition, it provides efficient combustion of organic volatile materials.

Effects of the invention According to the invention, the generation and release of incomplete combustion gas and unreacted gas derived from organic volatile materials, which are drawbacks of fume generators using oxidation catalyst heat generation as a heat source, can be suppressed as much as possible. , without causing discomfort to users, greatly reducing combustion loss of organic volatile materials, increasing combustion efficiency, and enabling efficient fuel consumption.

In addition, the present invention not only prevents the above-mentioned incomplete combustion gas, but also makes it possible to use the heat generated by the re-combustion of the exhaust gas to heat the heating plate, that is, to heat aromatics and insecticides, and to provide a sufficient amount of effective heat. There are advantages such as being able to secure

In addition, by using honeycomb-shaped ceramic as the main combustion oxidation catalyst carrier, and by arranging its ventilation holes vertically to face the secondary combustion oxidation catalyst carrier, the organic volatile material flows through the ventilation holes to promote active heat generation. The incomplete combustion gas generated by the flow-through can be reliably combusted on the sub-combustion oxidation catalyst carrier, and by using a porous body as the sub-combustion oxidation catalyst carrier, the radiant heat from the main combustion oxidation catalyst carrier and The above objective of secondary combustion can be achieved while obtaining effective heating without interrupting convective heat.

Further, in the present invention, the main combustion oxidation catalyst carrier is held by a clamping frame lowered from the heating plate, and the secondary combustion oxidation catalyst carrier is laid on the lower surface of the heating plate and held by claws provided on the heating plate. By doing so, it is possible to easily and rationally assemble the main and auxiliary combustion oxidation catalyst carriers and the heating plate in an optimal relative arrangement to achieve the above purpose. It is possible to easily assemble the body while maintaining the arrangement of the above three parts in the upper part of the inside, and also to ensure proper correspondence between the above three parts and the organic volatile material arranged at the bottom of the container, and to achieve the above secondary combustion purpose and incomplete combustion gas. It is possible to effectively achieve the purpose of resolution.

[Brief explanation of drawings]

Figure 1 is a side view showing the principle of the configuration of the oxidation catalyst exothermic mechanism in the fume generator of the present invention;
The figure is an assembled side view of the oxidation catalyst carrier constituting the heat generating mechanism, and FIG. 3 is a bottom view of the same. 1... Main combustion oxidation catalyst carrier, 1a... Vent hole,
2... Sub-combustion oxidation catalyst carrier, 3... Heating plate, 4...
...Organic volatile material, 5...Container, 6...Claw, 7...Mounting piece, 8...Tightening frame.

Claims (1)

[Scope of utility model registration request] An organic volatile material is arranged at the bottom of the container, a main combustion oxidation catalyst carrier is arranged above the organic volatile material, a secondary combustion oxidation catalyst carrier is arranged facing above the main combustion oxidation catalyst carrier, and the secondary combustion oxidation catalyst carrier is arranged facing above the main combustion oxidation catalyst carrier. A fume generator comprising a heating plate for heating an insecticide or aromatic agent disposed close to the upper part of a combustion oxidation catalyst carrier, and a clamping frame is integrally lowered from the lower surface of the heating plate, and the clamping frame is The main combustion oxidation catalyst carrier made of honeycomb-shaped ceramic is held within the frame, and its ventilation holes are opposed to the secondary combustion oxidation catalyst carrier and the heating plate, and the secondary combustion oxidation catalyst carrier is made of a porous material. is placed on the bottom surface of the heating plate and held by claws provided on the heating plate, mounting pieces are provided at both ends of the heating plate, and the mounting pieces are fixed to the upper part of the container to connect the main combustion oxidation catalyst carrier and the secondary combustion. A fume generator characterized in that the entire assembly of an oxidation catalyst carrier and a heating plate is mounted in the upper part of the same container.