JP2001224297A - Apparatus for volatilizing chemical - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for volatizing a chemical improved in volatilization efficiency by efficiently utilizing a thermal energy of an exothermic means. SOLUTION: This apparatus for volatilizing the chemical is obtained by installing a heating chamber 6c surrounded by a volatilizing cylinder 6 around the exothermic means 7 and making the upper part of the heating chamber 6c communicate with a volatilizing port 2c opened to the upper part of an apparatus body 1 in the apparatus for volatilizing the chemical capable of sucking the chemical in a chemical container 4 with a liquid sucking wick 5, heating the liquid sucking wick 5 with the exothermic means 7 and thereby volatilizing the chemical. Since the chemical can efficiently be volatilized with heat of the heating chamber 6c surrounded by the exothermic means 7 and the volatizing cylinder 6, the volatilizing efficiency can remarkably be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for generating heat from a liquid-absorbent wick that has absorbed a chemical such as an aromatic agent, an insecticide, a repellent, an acaricide, or a bactericide, or an impregnated body impregnated with the chemical. The present invention relates to a drug evaporating device that evaporates a drug by heating the body.

[0002]

2. Description of the Related Art Conventionally, this type of chemical vaporizer is disclosed in, for example, JP-A-6-54636 and Japanese Utility Model Laid-Open No. 4-975.
No. 79, Japanese Unexamined Utility Model Publication No. 6-68462 and the like are known.

[0003] In the drug evaporation apparatus described in Japanese Patent Application Laid-Open No. 6-54636, an exhaust hood is installed so as to cover the outer peripheral portion and the upper portion of the heating element. In addition, 4-9
The drug evaporation device described in Japanese Patent No. 7579 has a configuration in which a cylindrical ring having a diameter of 10 to 30 mm is provided between a heating element inside the device and an evaporation port. 6
No. 68462 discloses a chemical evaporating apparatus in which a radiator having a positive characteristic is exposed on one side of a heat radiating member provided so as to surround a suction core, and the other side is exposed outside from an insulating case in a bare state. And a wall surrounding the outer periphery of the exposed portion with a space therebetween.

[0004]

However, Japanese Patent Application Laid-Open No.
In the chemical vaporization apparatus disclosed in Japanese Patent No. 54636, since an independent heating chamber is not formed by the exhaust hood, there is a loss in thermal efficiency, and when the apparatus body is accidentally tilted and used,
Since the lower part of the exhaust hood is opened, the apparatus main body is significantly contaminated, and the apparatus main body is deformed.

[0005] In the chemical vaporizer disclosed in Japanese Utility Model Laid-Open No. Hei 4-97579, since the space between the cylindrical ring and the upper part of the heating element is open, there is a loss of heat radiation energy,
If the device is used by tilting it by mistake, vaporized chemicals may enter between the heating element and the cylindrical ring, causing serious damage to the device and deformation of the device. is there.

[0006] Further, in the chemical vaporization device disclosed in Japanese Utility Model Application Laid-Open No. 6-68462, the wall surrounding the exposed portion of the heat radiating member at intervals does not form a heating chamber. There is the same problem as the drug evaporation device disclosed in Japanese Unexamined Patent Publication No. Hei 4-97579. The present invention has been made in order to improve such conventional problems, improved thermal efficiency, and reduced the loss of chemicals and energy, and enabled stable evaporation even when used by tilting the apparatus body by mistake. It is an object to provide a drug evaporation device.

[0007]

According to a first aspect of the present invention, there is provided an ink jet recording apparatus, comprising: absorbing a liquid medicine in a medicine container with a liquid absorbing core; and heating the liquid absorbing core by a heating means. In a medicine evaporating apparatus for evaporating medicine, a heating chamber surrounded by an evaporating cylinder is provided around a heating means, and an upper part of the heating chamber is communicated with an evaporating opening opened at an upper part of the apparatus main body. .

[0008] With the above structure, the heating chamber surrounded by the evaporating cylinder is in a heat-insulating chamber state in which the heating chamber is shut off from the outside air by the evaporating cylinder, thereby greatly escaping the heat generated by the heat generating means to the outside air. Because the drug can be evaporated efficiently, the drug can be heated even if the device is tilted accidentally because the liquid absorption core exposed from the drug container is surrounded by the evaporation tube. Since it does not flow out of the room, there is no problem such as soiling of the device main body or deformation of the device main body due to the medicine.

In order to achieve the above object, the invention according to a second aspect of the present invention is to provide a heating device, wherein a heating element constituting a heating means is brought into contact with the evaporation element so that a part thereof is exposed to the outside of the evaporation element. The upper part of the tube is brought into contact with the inner surface of the apparatus main body.

[0010] With the above structure, the heat in the heating chamber is kept warm by the evaporation tube, so that most of the heat energy generated by the heating means contributes to the evaporation of the medicine.
Thereby, the transpiration efficiency can be greatly improved.

In order to achieve the above object, the invention according to claim 3 is characterized in that when the sectional area of the radiating tube constituting the heating means is S1 and the sectional area of the evaporating tube is S2, S2 / S1 = 3 to 20.
The cross-sectional area is set so that

With the above configuration, the thermal efficiency is improved.
Evaporation of the drug can be performed efficiently, and even when the device is used by being tilted by mistake, the inside of the device main body is less likely to be stained by the drug.

[0013] In order to achieve the above object, the invention according to claim 4 is one wherein an air vent is opened on the outer peripheral surface of the evaporation tube.

According to the above configuration, since sufficient air flows into the heating chamber from the vent, the transpiration efficiency can be further improved.

[0015]

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a drug evaporating apparatus according to an embodiment of the present invention. Reference numeral 1 denotes an apparatus main body that imitates the appearance of, for example, a pig, which is divided into an upper housing 2 and a lower housing 3. . A medicine container 4 is provided below the lower housing 3.
Is provided, and a container mounting part 3b into which the mouth 4a of the medicine container 4 is screwed is formed in the upper part of the container storage chamber 3a.

The medicine container 4 contains liquid medicines such as fragrance, insecticide, repellent, acaricide, and bactericide, and a lid fitted to the mouth 4a of the medicine container 4. A liquid absorbing core 5 made of a porous material is attached to 4b.
The lower end of the liquid absorbent core 5 is immersed in the liquid medicine contained in the medicine container 4, and the upper end is provided in the upper housing 2 through an opening 3c opened on the upper surface of the container mounting portion 3b. Into the evaporation tube 6.

As shown in FIGS. 2 to 4, the evaporating cylinder 6 has a cylindrical shape with open upper and lower surfaces, and has a notch formed on its outer peripheral portion for mounting a heating element 7a of a heating means 7. And a plurality of ventilation holes 6b
Are opened at intervals in the circumferential direction.

The evaporation tube 6 is made of, for example, polypropylene, polyethylene, polyacetal, acrylic, nylon, polyethylene terephthalate, polybutylene terephthalate, polycarbonate, polyphenylsulfone,
Polymer resins such as polyallylsulfone and polysulfone,
If necessary, they are formed of a mixture of glass fibers, inorganic substances, antioxidants, ultraviolet absorbers, etc., but are not limited to these as long as they have heat resistance and chemical resistance. Not something.

On the other hand, the heating element 7a is connected to a power cord 9 via a power switch 8 provided on the upper housing 2 side, and is provided on a front portion 2a of the upper housing 2 imitating an animal nose. When the power switch 8 is turned on by the push button 10, the heating element 7 a can be energized. During the energization of the heating element 7 a, the light emission of the LED provided on the upper surface of the upper housing 2 is performed. The element 11 is turned on.

At the upper part of the upper housing 2, a concave heat radiating portion 2b is provided just above the liquid absorbing core 5. The bottom surface of the heat radiating portion 2b has a convex spherical shape, a transpiration port 2c is opened in the center, and the upper end of the transpiration tube 6 is brought into contact with the inner surface of the upper housing 2, so that the inside of the transpiration tube 6 Heating room 6
c is formed, and a radiating tube 7b of the heat generating means 7 is provided in the heating chamber 6c so as to surround the periphery of the liquid absorbing core 5.

The radiating tube 7b is attached to the side surface of the heating element 7a, and is heated by the heating element 7a so that the medicine in the medicine container 4 absorbed by the liquid absorbing core 5 evaporates. Has become.

Next, the operation of the above-structured drug evaporation device will be described. When the medicine container 4 is mounted in the container accommodating chamber 3a of the lower housing 3 and the power switch 8 is turned on, power is supplied to the heating element 7a of the heating means 7, so that the heat radiation tube 7b is heated by the heat generated from the heating element 7a. Then, the upper part of the liquid absorbent core 5 is heated by the heat of the radiating tube 7b, and the medicine sucked up from the inside of the medicine container 4 by the liquid absorbent core 5 evaporates.

The vaporized medicine rises in the heating chamber 6c surrounded by the evaporation tube 6, and is released into the air from the evaporation port 2c opened in the heat radiating portion 2b. The air in the apparatus main body 1 flows from the ventilation port 6b opened on the outer peripheral surface of the lower part of the evaporation tube 6, and the airflow shown by the arrow in FIG. 1 is generated, so that the evaporation efficiency is improved.

On the other hand, the heat generated by the heating element 7a is
is transmitted to the evaporation tube 6 to which a is attached, and the entire evaporation tube 6 is heated, whereby the temperature of the heating chamber 6c surrounded by the evaporation tube 6 becomes higher, so that the evaporation efficiency is improved, Most of the heat energy generated from the heating element 7a contributes to the evaporation of the medicine, so that the thermal efficiency is greatly improved.

In the embodiment of the present invention, the radiating cylinder 7
When the sectional area of b is S1 and the sectional area of the evaporation tube 6 is S2, S2 / S1 = 3 to 20 is set. This is the area ratio S of the sectional area S2 of the evaporation tube 6 and the sectional area S1 of the radiating tube 7b.
When 2 / S1 is less than 3, the heat retention effect becomes too good, and the balance between the amount of drug vaporized in the heating chamber 6c and the flow rate of air is lost, and a large amount of the vaporized drug is contained in the heating chamber 6c and the transpiration port 2.
c, which not only adheres to the surroundings, but also pollutes the inside of the device body 1,
Sufficient transpiration cannot be obtained. On the other hand, if S2 / S1 is larger than 20, a sufficient heat retaining effect cannot be obtained, so that the thermal efficiency does not improve. Therefore, by setting the range of S2 / S1 to 3 to 20, thermal efficiency is improved, loss of chemical solution and energy is reduced, and stable evaporation can be performed even when the apparatus main body 1 is used by being tilted by mistake.

The ventilation port 6b opened on the outer periphery of the lower part of the evaporation tube 6 is important for improving the evaporation efficiency by allowing sufficient air to flow into the heating chamber 6c in the evaporation tube 6, and especially for the evaporation tube. By providing two to five vents 6c having substantially the same opening area on the outer periphery of the lower part of 6, the transpiration efficiency can be further improved.

Table 1 below shows d, d-T8 of the drug evaporation device according to the embodiment of the present invention and the conventional drug evaporation device.
3 shows a comparison table comparing the amount of transpiration of 0 praletrin.

[0028]

[Table 1]

Table 2 below shows a comparison of the evaporation efficiency and the contaminating property of the case where the vent is opened in the evaporation tube and the case where the vent is not opened.

[0030]

[Table 2]

Table 3 below shows the sectional area S2 of the evaporation tube 6.
Is a comparison of the evaporation efficiency and contamination of a conventional drug evaporation device without an evaporation tube. From these tables, the effect of the drug evaporation device according to the present invention is clear.

[0032]

[Table 3]

[0033]

As described above in detail, according to the present invention, a heating chamber surrounded by a vaporizing cylinder is provided around a heating means for heating a liquid absorbing core, and the upper part of the heating chamber is connected to the upper part of the apparatus main body. Since the heating chamber, which is surrounded by the evaporation tube, is insulated from the outside air by the evaporation tube, the heat generated by the heating means is transferred to the outside air. When the device is tilted by mistake because the escape of the drug can be efficiently performed because the escape can be greatly reduced, and the periphery of the liquid absorption core exposed from the drug container is surrounded by the evaporation tube. However, since the medicine does not flow out of the heating chamber, problems such as contamination of the inside of the apparatus main body by the medicine and deformation of the apparatus main body do not occur.

Further, since the heating element constituting the heating means is brought into contact with the evaporating cylinder so that a part thereof is exposed to the outside of the evaporating cylinder, heat in the heating chamber is maintained by the evaporating cylinder. Most of the thermal energy generated by the means contributes to the transpiration of the drug, thereby greatly improving the transpiration efficiency.

When the sectional area of the radiating tube constituting the heat generating means is S1, and the sectional area of the evaporating tube is S2, S2 / S
Since the cross-sectional area is set so as to be 1 to 3 to 20, the thermal efficiency is improved, so that the medicine can be efficiently evaporated and the inside of the apparatus main body is contaminated by the medicine even when the apparatus is used by being tilted by mistake. Less likely.

Moreover, since the ventilation port is opened on the outer peripheral surface of the evaporation tube, sufficient air flows into the heating chamber from the ventilation port, so that the evaporation efficiency can be further improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a drug evaporation device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a vaporizing cylinder used in the chemical vaporizing apparatus according to the embodiment of the present invention.

3 is a view as seen from the direction of arrow A in FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 2;

[Description of References] 1 ... device main body, 2c ... transpiration port, 4 ... drug container, 5 ... liquid absorption wick, 6 ... transpiration cylinder, 6b ... vent, 7 ... heating means, 7a ...
Heating element, 7b ... radiator tube.

Claims (4)

[Claims] 1. A medicine evaporating apparatus for absorbing a drug solution in a drug container 4 with a liquid absorbing core 5 and evaporating the drug by heating the liquid absorbing core 5 with a heat generating means 7. A heating chamber 6c surrounded by a vaporization cylinder 6 and an upper portion of the heating chamber 6c communicating with a vaporization port 2c opened at an upper portion of the apparatus main body 1. 2. A heating element 7a constituting the heating means 7 is brought into contact with the evaporating cylinder 6 so that a part thereof is exposed to the outside of the evaporating cylinder 6. The chemical vaporizer according to claim 1, wherein the chemical vaporizer is in contact with an inner surface of the chemical vaporizer. 3. When the sectional area of the radiating tube 7b constituting the heating means 7 is S1 and the sectional area of the evaporating tube 6 is S2,
3. The apparatus according to claim 1, wherein the cross-sectional area is set so that / S1 = 3 to 20. 4. The chemical vaporizer according to claim 1, wherein a vent 6b is opened in the outer peripheral surface of the vaporizing cylinder 6.