JPH06284845A - Unit for evaporating liquid medicine in heating and evaporating apparatus - Google Patents

Abstract

PURPOSE:To prevent not only leakage of a liquid caused by change of the atmospheric temperature, etc., but formation of an air layer hindering transfer of the liquid medicine from a lower wick to an upper wick during a heating and evaporating operation. CONSTITUTION:The lower part of an upper wick 3 and the upper disc part of a lower wick 4 are respectively engaged with an inside plug 2. A disc edge cut part 29 is made in the disc part 24 of the lower wick 4 so as to form a gap communicating the inside of the bottle 1 to the upper wick 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention absorbs a chemical solution into a core by immersing a part of the absorbent core in a chemical solution containing insecticide, sterilization, deodorant, aroma, etc. The present invention relates to a chemical vaporizer in a heating vaporization device of a system in which an absorbed chemical is vaporized by heating an upper part of the core by a heating element arranged around the core.

[0002]

2. Description of the Related Art A method of heating evaporation in which a liquid absorbent is absorbed in a liquid by absorbing a part of the liquid absorbent core and the upper part of the core is heated to evaporate the absorbed liquid. The method is known. The basic configuration of the heating evaporation device used in this system is as shown in FIG.
A porous or microporous liquid absorbent core 15 is fixed and dipped in the bottle 1 in which the liquid is accommodated via the inner plug 2 fixed to the opening 5, and thus the liquid absorbent core 15 and the bottle 1 , Stopper 2
A chemical vaporization body consisting of a heating element 17 in the form of a ring or a plurality of divided pieces arranged annularly on the upper part of the apparatus body 16.
The liquid absorbent core 15 protruding from the inner plug 2 is placed at a predetermined position in the main body 16 of the apparatus so that the upper end of the liquid absorbent core 15 is arranged in the central opening. Then, by heating the upper end portion of the liquid absorbent core 15 to about 70 to 140 ° C. by the heating element 17, the chemical solution 10 absorbed by the liquid absorbent core 15 is ventilated through the vent hole 18 provided in the upper part of the apparatus body 16. To be transpired through.

The porous liquid absorbent core is generally clay, talc, kaolin, perlite, calcium carbonate, magnesium carbonate, rock wool, diatomaceous earth, gypsum, bentonite, glass fiber, silica, alumina, silica-alumina, wood. A powder, activated carbon, cellulose, pulp, linter, inorganic powder such as polymer resin and / or organic powder fixed and molded with a sizing agent such as starch or CMC is used. The liquid absorbent core 15 is microporous and has a relatively good liquid absorbing property.

However, when the liquid absorbent core 15 as described above is used, thermal expansion occurs inside the bottle 1 due to radiant heat from the heating element 17 at the time of heating, and the internal pressure inside the bottle 1 increases, and as a result, the internal / external pressure difference is increased. Therefore, there is a problem that the chemical liquid 10 is pushed up in the liquid absorbent core 15 to cause liquid leakage. Further, there is a problem that even when the apparatus is left stationary, liquid leakage easily occurs when the climate changes, especially when the atmospheric pressure changes, and when the low pressure approaches, the internal pressure becomes high as in the above case, and the liquid leakage easily occurs.

Further, since the length of the liquid absorbent core 15 is long when it is molded, the liquid absorbent core 15 has a poor moldability and a high manufacturing cost. Further, there is a drawback that the liquid absorbent core 15 is easily broken at the time of fitting with the inner plug 2 and mounting on the bottle 1.

In order to solve such a problem, for example, Japanese Utility Model Publication No. 45-14913 proposes a concave inner plug 2 as shown in FIG. 24, which has a bottom central opening which contacts the liquid absorbent core. A notch 20 or a small hole for ventilation is provided in the mouth edge 19, and a liquid absorbent core is inserted into the center opening of the bottom and then fitted into the opening of the bottle.

On the other hand, Japanese Utility Model Publication No. 1-37422 proposes an inner plug 2 as shown in FIG. This inside plug 2
In the above, a tubular portion 21 is provided so as to extend downward from the central opening of the lid portion, and a ventilation hole 22 is provided in the tubular portion 21.

In Japanese Patent Application No. 4-43085, FIG.
To a bottle 1 for containing a drug solution, as shown in FIG. 32,
An inner stopper 2 capped on the upper part of the bottle 1, an upper liquid absorbent core 3 vertically held at the center of the inner liquid stopper 2, a lower end of the upper liquid absorbent core 3 or a lower end of the inner liquid stopper 2 Combined with bottle 1
A chemical liquid vaporizer comprising a lower liquid absorption core 4 housed inside was proposed.

[0009]

In the case of a chemical vaporizer having a concave inner stopper 2 as proposed in Japanese Utility Model Publication No. 45-14913 shown in FIG. 24, the bottom central opening of the inner stopper 2 is used. Since the notch 20 for ventilation is provided in the mouth edge 19, the inside of the bottle is in communication with the atmosphere, and the problem of liquid leakage due to the rise in the internal pressure of the bottle due to heating as described above is solved. However, on the contrary, because of the notch 20, there is a problem that the chemical liquid inside spills when the bottle falls or is accidentally inverted. Further, since the liquid absorbent core is held only at the edge 19 of the bottom central opening of the inner plug 2, the front, rear, left and right of the upper part of the liquid absorbent core is largely shaken, and the liquid absorbent core cannot be fixed stably. The upper part of the liquid absorbent core is likely to come into contact with the inner surface of the device when the device is installed in the device body or other handling, and the core fixing part is easily broken or loosened,
There is a problem that the external force causes the force to concentrate on the liquid-wicking core 15 that is in contact with the edge 19 of the bottom center opening, and the liquid-wicking core is easily broken.

On the other hand, in the case of a chemical solution evaporating body having an inner plug 2 as proposed in Japanese Utility Model Publication No. 1-37422 shown in FIG. 23, a ventilation hole 22 is provided in a cylindrical portion 21 which is hung vertically downward. By doing so, a certain amount of aeration can be obtained inside and outside the bottle 1, and liquid leakage due to changes in the outside air temperature and the like can be prevented. However, the length of the portion holding the liquid absorbent core 15 is low relative to the entire length of the single liquid absorbent core 15, so that the liquid absorbent core 15 is liable to shake in the front, rear, left and right directions. There is a problem that the upper portion of the liquid absorbent core 15 comes into contact with the inner surface of the device or the like and the liquid absorbent core 15 is easily broken when the chemical vaporizer is installed in the apparatus body 16 or in other handling.

In order to solve the above problems, it is considered that the strength of the liquid absorbent core 15 is made extremely high.
When the strength is increased, clogging of the liquid medicine 10 inside the liquid absorbent core 15 occurs, or the amount of the liquid medicine 10 sucked up to the upper end side of the liquid absorbent core 15 decreases. There was a problem that it could not be stably evaporated.

In addition, Japanese Patent Application No. 4-4 shown in FIGS.
In the case of the chemical vaporizer having the structure having the upper liquid absorbent core 3 and the lower liquid absorbent core 4 proposed in No. 3085, the lower liquid absorbent core 4 is replaced with the upper liquid absorbent core 3 as shown in FIGS. 25 to 27 and 29. In the structure in which the upper liquid absorbent core 3 is coupled to the lower end portion, if the upper liquid absorbent core 3 comes off from the guide portion of the inner plug 2 and the lower liquid absorbent core 4 and comes off, the chemical liquid 10
28 and FIGS. 30 to 32, the lower liquid absorbent core 4 is connected to the lower end of the upper liquid absorbent core 3 and the lower end of the inner plug 2 as shown in FIGS. 28 and 30 to 32. Since the concave and convex portions used for coupling are set on the core 4, the shape becomes complicated.

28 and FIGS. 31 to 32, since the uneven portion used for coupling is set also to the upper liquid absorbent core 3, the shape becomes more complicated, and the formability of the upper liquid absorbent core 3 is poor. Or the fitting portion is likely to be damaged at the time of fitting each other, and in particular, the uneven portion set in the upper liquid absorbent core 3 is easily damaged. If damaged, the lower liquid absorbent core 4 may be damaged depending on the damage state. There is a problem that the chemical liquid 10 cannot be stably evaporated in the heating evaporation device because the amount of the chemical liquid 10 sucked from the upper liquid absorbent core 3 to the upper liquid absorbent core 3 is reduced and further stopped.

In contrast to Japanese Patent Application No. 4-43085, in which the upper liquid absorbent core 3 and the lower liquid absorbent core 4 are integrally fitted with each other by means of uneven portions, the upper liquid absorbent core 3 is As an example in which the lower liquid absorption core 4 and the lower liquid absorption core 4 are not directly fitted to each other, the lower surface of the upper liquid absorption core 3 and the upper surface of the lower liquid absorption core 4 having the substantially same areas as shown in FIG. A combined structure is also conceivable.

In this case, the mutual connection can be easily made with a simple structure, but it is difficult for the upper liquid absorbent core 3 and the lower liquid absorbent core 4 to be evenly adhered to each other, and partial contact or close contact is achieved, When an air layer is formed during the use of heating and evaporation in the contact or in the minute gaps in the vicinity generated at this time, since the air layer cannot directly contact the air inside and outside the bottle, bubbles are formed during evaporation. The liquid remains as it is, and as a result, the liquid medicine 10 rises against the gravity direction of the lower liquid absorbent core 4, that is, the amount of liquid medicine 10 sucked up from the lower liquid absorbent core 4 to the upper liquid absorbent core 3 decreases, or The absorption of the chemical liquid 10 may be hindered at the upper end of the liquid core 4, and in particular, the liquid absorption core may have a wide gap between the upper liquid absorption core and the lower liquid absorption core due to variations in manufacturing. When combined with the inner stopper, it stabilizes the drug solution. There have been cases where it is impossible to evaporate. For this reason, the composition and fitting method of the lower liquid absorbent core 4 need to be devised and accurate, and the management is complicated.

It is an object of the present invention to solve these problems and to provide a chemical liquid vaporizer in a heating vaporization device capable of stably vaporizing a chemical liquid for a long period of time.

[0017]

Means for Solving the Problems In order to achieve the above object, the present invention provides a chemical vaporizer in a heating vaporization device, a bottle containing a chemical liquid and having an opening at the top, and the bottle being attached to the opening. In addition, an inner stopper having a cylindrical guide portion in the center, an upper liquid absorbent core that is held by the guide portion and has an upper end protruding from the guide portion, and a lower end of the upper liquid absorbent core that is in contact with or close to the lower liquid absorbent core. The upper liquid absorbent core can be stably held by being configured with the lower liquid absorbent core that is mounted on the guide part and stored in the bottle, and when the chemical vaporizer is incorporated into the apparatus main body, Eliminate breakage of the upper and lower absorbent cores so that assembly work can be done easily.

Furthermore, by providing a structure in which the gap in which the air in the bottle directly touches the upper liquid absorbent core that is heated can be set by fitting the middle plug and the lower liquid absorbent core, the outside air temperature, etc. In addition to preventing liquid leakage due to changes, when using heat evaporation, the upper suction core and the lower suction core held by the inner plugs are in contact with each other or in a small gap in the vicinity of the upper suction core from the upper suction core. By preventing the formation of an air layer that prevents the transfer of the chemical liquid to the liquid core, it is possible to prevent a decrease in the amount of the chemical liquid sucked up from the lower liquid absorption core to the upper liquid absorption core, and also to prevent the upper liquid absorption core and the lower liquid absorption core from absorbing. By reducing the clogging in the liquid core, the chemical liquid can be stably evaporated.

[0019]

[Operation] According to the present invention, a porous material held vertically in the center of an inner stopper capped at an opening at the top of a bottle in a chemical solution such as insecticide, sterilization, deodorant, and aroma contained in the bottle. A liquid chemical vaporizer in a heating evaporation device of a type in which a part of a liquid absorbent core is immersed to absorb the chemical liquid, and the upper part of the core is vaporized to evaporate the absorbed chemical liquid. Differently in the structure incorporating a single body liquid absorbent core that has been used favorably in the past and has excellent strength or heat resistance, and the upper liquid absorbent core shortened at the lower part of the above-mentioned single body and the part located below it and shortened It has a double structure composed of a porous lower absorbent core having excellent liquid absorbability, and the fitting between the core that serves as a heating section and the inner plug is shorter than that of a single-body absorbent core with a long overall length. By using the upper liquid absorbent core, it is stronger and reduces the deviation of the core in front, back, left and right, and In the case where the upper and lower absorbent cores having a double structure are firmly fitted and not integrated with each other, when they are held by being inserted into the inner plug and are in contact with or close to each other. The structure that allows the space in which the air in the bottle is heated to directly contact the upper liquid absorbent core is set when the inner plug and the lower liquid absorbent core are fitted together, so that the lower liquid absorbent during heating and evaporation is used. The chemical liquid is smoothly transferred from the wick to the upper absorbent core, and stable transpiration of the chemical liquid can be performed.

The chemical vaporizer used in the present invention contains a bottle containing a chemical solution and having an opening at the top, and a portion corresponding to the inside plug having a guide part attached to the opening and having a cylindrical shape at the center. An upper liquid absorbent core held by the guide portion and having an upper end projecting from the guide portion, and a lower portion which is attached to the guide portion in contact with or in proximity to the lower end portion of the upper liquid absorbent core and is stored in a bottle. A liquid absorbent core is provided, and one or more gaps are provided between the guide portion and the lower liquid absorbent core to provide ventilation by direct communication between the bottle and the upper liquid absorbent core. It is a thing.

With the above-mentioned structure, the drug solution contained in the bottle is first absorbed by the lower absorbent core and then sucked up by the upper absorbent core which is in contact with or close to the lower absorbent core. Then, at the upper end portion of the upper liquid absorption core, the chemical liquid heated by the heating element of the predetermined heating evaporation device is stably evaporated.

The insecticide used in the present invention as a liquid medicine is
Various transpiration insecticides conventionally used can be used, and examples thereof include pyrethroid insecticides, carbamate insecticides, organophosphorus insecticides, and the like. Generally, a pyrethroid insecticide is preferably used because it is highly safe, and examples thereof include allethrin, dl.d-T80-allethrin, d.d-T80-allethrin, and d.d-T80-.
Conventionally known various pyrethroid insecticides such as pralethrin, phthalthrin, d-T80-resmethrin, d-T80-flamethrin, permethrin, phenothrin, fenvalerate, cypermethrin, cifenotrin, empentrin, terrarethrin, etofenprox can be used. . Depending on the purpose of use, solutions of conventionally used evaporative agents such as bactericides, fungicides, deodorants, repellents, and fragrances can also be used. -Phenylphenol, isopropylmethylphenol, 2-chloro-4-phenylphenol, thymol and the like, and as the fragrance, citronellol, eugenol, menthol, linalool and the like.

Further, as the upper absorbent core in the present invention,
One or more of inorganic powder and / or organic powder is extrusion-molded together with a binder and dried, one obtained by adding a binder to one or more of inorganic powder and / or organic powder is compression-molded, inorganic powder and And / or one obtained by molding one or more kinds of organic powder together with a binder, and firing,
Examples of the fibrous substance include a method of molding into a mat. As the inorganic substance and / or organic substance as the base material of the upper absorbent core, various substances can be used, for example, clay, talc, kaolin, diatomaceous earth, gypsum, perlite, bentonite, acid clay, volcanic rock, carbonic acid. Calcium, magnesium carbonate, hydrogen carbonate, calcium phosphate, calcium hydrogen phosphate, anhydrous calcium hydrogen phosphate, calcium lactate, aluminum silicate, magnesium silicate, colloidal silica, lactose, sucrose, starch,
CMC, MC, hydroxypropyl starch, magnesium hydroxide aluminate, magnesium aluminometasilicate, glass fiber, rock wool, sepiolite, clay, coke, graphite, wood flour, cellulose, pulp, linter,
Polymer resins such as polyethylene, polypropylene, polyphenylene sulfite, and polyamide can be exemplified,
Of course, it is not limited to this.

As the binder, various cellulose derivatives such as CMC, MC and hydroxyethyl cellulose, gelatin, gum arabic, polyvinyl alcohol (PV
A), starch and its derivatives, pullulan, casein and its derivatives, alginic acid and its derivatives, curdlan, agar, carrageenan, julan gum, succinoglucan, farceleran, karaya gum, acacia gum, tamarind gum, acrylamide polymer, tragacanth gum, dextran. , Albumin, soy protein, polyvinyl ether, polyethyleneimine, nigeran, rutin acid, phosphorus mannan, levan, pectin, polyvinylpyrrolidone, collagen, polyvinylmethacrylate,
Various thickeners such as sodium chondroitin sulfate, water-soluble polymers, polyphenylene sunphyte (PPS), polyvinyl butyral (PVB), acrylic resins, polyamide (PA), polypropylene (PP), polyethylene (PE), ethylene vinyl acetate Copolymer (EVA), phenol resin, melamine resin, urea resin, tar,
Pitch, urethane, wax, wax emulsion,
Examples thereof include colloidal silica, magnesium aluminometasilicate, water glass, aluminum phosphate, sodium phosphate, calcium hydrogenphosphate, and other phosphates, but are not particularly limited thereto. The above-described materials can provide the upper absorbent core having excellent strength.

As the lower liquid absorbent core, glass, rock wool, linter, pulp, polyester, polyamide, polyolefin, inorganic organic fibers such as acrylic, fiber rod-shaped molding, and porous molding can be used.
Considering the degree of freedom of shape, manufacturability, strength, etc., a porous molded product is preferable. The porous molded article can be produced by compression molding, tablet molding, sinter molding, etc., more preferably sinter molding, and metal, polyethylene, polypropylene, polymethylmethacrylate, polytetrafluoroethylene. , Polystyrene, acrylonitrile copolymer, ethylene vinyl acetate copolymer, fluororesin,
A powder such as polyvinylidene fluoride can be mainly sintered and can be molded into a shape corresponding to fitting with the inner plug. The above-described materials can provide a lower liquid absorbent core having excellent liquid absorbency.

Examples of the chemical vaporizer of the present invention include the following various modes, but the invention is not limited thereto. A chemical solution evaporative body having a structure in which a gap for communication between the upper absorbent core fitted to the inner stopper and the inside of the bottle is obtained by fitting the inner stopper to the lower absorbent core provided with a notch. A chemical vaporizer having a structure obtained by fitting a lower liquid absorption core to an inner plug having a groove below which a gap for communicating between the upper liquid absorption core fitted to the inner plug and the inside of the bottle is provided. . A chemical vaporizer having a structure obtained by fitting a lower liquid absorption core to an inner plug having a slit formed in a lower portion thereof so that a gap between the upper liquid absorption core fitted to the inner plug and the inside of the bottle communicates.

The shape of the gap is not limited to a groove or a slit,
A hole or the like may be provided in the lower liquid absorption core. In each of these aspects, the upper liquid absorbent core and the lower liquid absorbent core may have a structure in which they are integrated by being fitted with the concave and convex portions provided on both or one of them. .

[0028]

[Examples] Examples of various aspects of the chemical vaporizer of the present invention will be specifically described below. FIG. 1 shows an embodiment of the chemical vaporizer according to the present invention. The chemical vaporizer accommodates the chemical solution 10 and has a bottle 1 having an opening 5 at the top.
And an inner plug 2 which is attached to the opening 5 and has a cylindrical guide portion 8 in the vertical direction at the center, and a cylindrical shape which is held by the guide portion 8 and whose upper end projects from the guide portion 8. Of the upper liquid absorbent core 3 and the upper part which is attached to the guide portion 8 in contact with or close to the lower end portion of the upper liquid absorbent core 3 and hung down inside the bottle 1 and fitted with the guide member 8. A disk part 24 having the same diameter as the liquid absorbent core 3, a rod-like part 26 hanging from the lower part of the disk part 24, and a guide part 8 fitted to a part of the disk part 24 to absorb the upper liquid. A stepped columnar lower liquid absorption core 4 having a circular edge cutout 29 for forming a gap for communicating with the core 3 and having an outer diameter expanded only to the disk part 24.
It consists of and. The cross section near the gap is as shown in FIG.

On the outer periphery of the opening 5, an inner plug fitting portion 6 and a screwing portion 7 are provided from the upper end. The bottle 1 is hermetically sealed by screwing a cap (not shown) to the screwing portion 7 before use, and the cap is removed before use. The inner stopper 2 is fitted onto the inner stopper fitting portion 6 of the bottle 1 and the guide portion 8
The inner diameter of is the outer diameter of the upper absorbent core 3 and the lower absorbent core 4 to be used.
Is approximately equal to the outer diameter of the disk portion 24.

Further, the inner peripheral surface of the guide portion 8 is provided with a groove portion 9 of a predetermined size in the vertical direction from the upper end to facilitate fitting with the upper liquid absorbent core 3 and to provide a pressure difference between the inner and outer pressures of the bottle 1. To prevent liquid leakage due to internal / external pressure difference. In addition,
A slit that communicates the inside and outside of the guide portion 8 is partially provided. The groove portion 9 is formed so that the upper end side and the lower end side of the guide portion 8 do not directly communicate with each other in order to prevent liquid leakage at the time of tipping.

The chemical solution 10 contained in the bottle 1 having the above-described structure is first absorbed by the lower liquid absorbent core 4 and then sucked up by the upper liquid absorbent core 3 connected to the lower liquid absorbent core 4. Then, the chemical liquid 10 is evaporated at the upper end of the upper liquid absorbent core 3 by a heating element of a heating evaporation device (not shown).

FIG. 3 shows an example in which the upper liquid absorbent core 3 and the lower liquid absorbent core 4 are fitted inside the guide portion 8 of the inner plug 2. The upper liquid absorbent core 3 has the same columnar shape as that of the above-mentioned embodiment, but has a hole portion 23 at the lower end portion which extends upward,
Further, the lower liquid absorbent core 4 is a disk portion 24 having the same diameter as that of the upper liquid absorbent core 3 provided with a circular edge notch 29 for forming a ventilation gap according to the embodiment shown in FIG. The protrusion 2 that fits into the hole 23 formed in the lower end of the upper absorbent core 3 in the upper portion of the plate portion 24.
5 is formed so that the hole 23 of the upper liquid absorbent core 3 and the protrusion 25 of the lower liquid absorbent core 4 fit together.

FIG. 4 also shows an example of fitting the upper liquid absorbent core 3 and the lower liquid absorbent core 4. The downwardly projecting portion 11 provided at the lower end of the upper liquid absorbent core 3 and the downward hole 12 provided at the upper portion of the disc portion 24 of the lower liquid absorbent core 4 are fitted together to provide ventilation. The gap formation is based on the embodiment shown in FIG.

Further, in contrast to the embodiment shown in FIG. 1, as shown in FIG. 5, the lower absorbent core 4 can be turned upside down by providing the disk portions 24 of the lower absorbent core 4 at both ends. .

Further, in the embodiment shown in FIG. 5, the inner plug 2
A tapered portion 27 is formed on the upper end side of the cylindrical guide portion 8.

The gap for ventilation is not limited to one, but can be increased by providing a plurality of circular edge cutouts 29 in the disc portion 24, and the size and shape thereof may be arbitrary. .

6 to 9 exemplify sectional views of the disk portion 24 provided with the circular edge cutout portion 29. However, when a swellable material is used for the lower liquid absorbent core 4, the volume of the lower liquid absorbent core 4 increases in the horizontal direction and the vertical direction after the lower liquid absorbent core 4 absorbs liquid. It is necessary to set the number, size, and shape of the circular edge notches 29 within a range in which the fitting portion with the guide portion 8 is firmly fitted, but the gap is not filled with the increase in volume.
Further, the circular edge notch 29 provided in the disc portion 24 of the lower liquid absorbent core 4 has a number, size and shape so that the lower liquid absorbent core 4 will not be easily removed from the guide portion 8 of the inner plug 2. It is necessary to set, and it is not preferable to provide the circular edge cutout 29 more than necessary.

FIG. 10 shows another embodiment of the present invention. The shape of the upper liquid absorbent core 3 and that the upper liquid absorbent core 3 is held above the guide portion 8 of the inner plug 2, and further comprises the lower liquid absorbent core 4 held below the guide portion 8. Is similar to the above-mentioned embodiment, but below the guide portion 8 of the inner plug 2 that fits with the disc portion 24 of the lower liquid-wicking core 4, the upper liquid-wicking core when fitted with the disc-shaped portion 24 is A core fitting groove portion 30 for forming a gap for ventilation is provided so as to communicate with 3. The cross section near this groove is as shown in FIG.

Therefore, it differs from the above-described embodiment in that the disc edge cutout 29 of the disc portion 24 of the lower liquid absorbent core 4 is not provided. It should be noted that the number of gaps for ventilation is not limited to one, but can be increased or increased by providing a plurality of core fitting groove portions 30 as in the above embodiment.

Further, in this embodiment, only the upper end side of the cylindrical guide portion 8 of the inner plug 2 has a diameter that is slightly larger outward than the outer diameter of the upper liquid absorbent core 3 and has increased. It is also different from the above-mentioned embodiment in that it has a structure in which a ridge holding portion 32 for holding the upper liquid absorbing core 3 corresponding to the expanded width is formed on the inner peripheral surface on the upper end side of the guide portion 8.

FIG. 12 is an embodiment showing another embodiment.
The basic structure is the same as that of each of the above-mentioned embodiments, but the lower liquid-wicking core 4
When the disc portion 24 of the inner plug 2 and the guide portion 8 of the inner plug 2 are fitted, a side slit 3 is formed on the lower side surface of the guide portion 8 of the inner plug 2 in order to form a gap for communicating with the upper liquid absorbent core 3.
1 is provided. Note that FIG. 13 is a sectional view near the side slits.

The gap for ventilation is not limited to one, but it can be increased by providing a plurality of side slits 31, and the guide portion 8 of the inner plug 2 and the disc portion of the lower absorbent core 4 can be increased. The number, position, and size of the side slits 31 can be arbitrarily set and used within a range that does not significantly reduce the fitting force with 24. This is the same when the disc edge cutout portion 29 and the core fitting groove portion 30 are provided in each of the embodiments, and further, the disc edge cutout portion 29, the core fitting groove portion 30, and the side slit 31 are provided. It is also possible to use a combination of the embodiments, and in this case as well, a number,
It can be used as a liquid absorbent core of a chemical vaporizer by arbitrarily setting the position and size.

FIG. 14 shows an embodiment showing another mode. The disk portion 24 of the lower liquid absorbent core 4 is longer than that in the above embodiment in the height direction, that is, in the direction of the upper liquid absorbent core 3, and the end surface of the disk portion 24 has the upper liquid absorbent core 3 A circular edge groove portion 33 is provided in a direction hanging down from the side that is in contact with or close to, and the circular edge groove portion 33 and the guide portion 8 of the inner plug 2 are fitted to each other so that ventilation is communicated with the upper liquid absorbent core 3. And a circular edge protruding portion 34 that abuts the lower surface of the guide portion 8 of the inner plug 2 at the time of fitting is provided on the opposite surface of the circular edge groove portion 33 provided on the disc portion 24. . Since the circular edge projection 34 is always locked at the position of the lower surface of the guide portion 8 of the inside plug 2, the guide portion 8 and the disc portion 24 are always fitted in a fixed position. Round edge groove 3
3 and the circular plate portion 24 of the lower liquid absorbent core 4 provided with the circular edge projection 34 are shown in FIG.

In this embodiment, the circular edge protrusion 34
Can have any number, size and shape, such as one or more outwardly projecting projections.

In order to maintain the ventilation by connecting the upper liquid absorbent core 3 and the inside of the bottle to each other, as shown in FIG. 16, a ventilation hole 22 is provided in a cylindrical portion 21 which is vertically provided below the inner plug 2. In FIG. 16, the liquid absorbent core has a double structure including an upper liquid absorbent core 3 and a lower liquid absorbent core 4, and the side surface of the guide portion 8 of the inner plug 2 communicates with the upper liquid absorbent core 3. 1 vent hole 22
It has a configuration in which it is provided individually. The size, the position, and the number of the ventilation holes 22 can be arbitrarily set within the range in which they communicate with the upper liquid absorbent core 3. However, in the case of this configuration, there is air circulation between the upper liquid absorbent core 3 and the inside of the bottle through the ventilation hole 22, and the heat vaporized to the portion where the upper liquid absorbent core 3 and the lower liquid absorbent core 4 are in contact with or close to each other. Although it is possible to prevent the formation of an air layer during use, this part does not come into direct contact with the air in the bottle and direct ventilation cannot be obtained. Ventilation toward the upper liquid absorbent core 3 is reduced as compared with the case of the above-mentioned embodiment, and there may be a slight difference from the above-mentioned embodiment in the suction state of the chemical liquid. However, even in the case of the present embodiment, the chemical liquid is sufficiently sucked from the lower liquid absorbent core 4 to the upper liquid absorbent core 3 and can be used as a liquid chemical vaporizer.

FIG. 17 is an embodiment showing a completely different constitution of the present invention. The shape of the upper liquid absorbent core 3 and the fact that the upper liquid absorbent core 3 is held above the guide portion 8 of the inner plug 2 are the same as in the above-described embodiment, and the lower liquid absorbent core 4 does not have the disc portion 24. In addition to having a cylindrical rod shape, the lower end opening of the guide portion 8 of the inner plug 2 is connected to the cylindrical lower absorption core and a fitting insertion hole 35 having a diameter substantially equal to that of the upper absorption core 3 and the inside of the bottle 1. Has a solid cross section with a communication hole 36. As a matter of course, the lower liquid absorption core 4 is inserted into the insertion hole 35. The solid cross section of the lower end opening of the guide portion 8 is as shown in FIG. 18. In this embodiment, the communication holes 36 are provided at four places. The shape, size, and number of the communication holes 36 may be arbitrary. Further, the lower liquid absorbent core 4 is not limited to a columnar shape, and may have a polygonal shape or the like. Furthermore, the shape of the fitting insertion hole 35 can be any shape that matches the lower liquid absorbent core 4.

FIG. 19 shows another embodiment which is different from the embodiment shown in FIG. 17 in that the upper liquid absorbent core 3 and the lower liquid absorbent core 4 are directly fitted to each other. The hole 23 provided in the lower liquid absorbent core 4 and the protrusion 25 provided at the upper end of the lower liquid absorbent core 4 are fitted into each other. The lower liquid-wicking core 4 is provided with a disc portion 24 which is hooked on the solid portion of the lower end opening of the guide portion 8. The diameter of the disk portion 24 is smaller than the diameter of the guide portion 8 of the upper liquid absorbent core 3 or the inner plug 2, and the lower liquid absorbent core 4 is provided in the solid cross section of the lower end opening of the guide portion 8. When fitted into the fitting insertion hole 35, a gap is formed between the side surface of the disk portion 24 and the inner side surface of the guide portion 8. However, in the case of this embodiment, the lower liquid absorbent core 4 can be fitted into the inner plug 2 only from the upper side of the inner plug 2.

However, in practice, it does not matter even if the disk portion 24 is not provided, and in this case, unless the diameter of the protrusion 25 of the lower liquid absorbent core 4 is larger than the cylindrical portion, the inner plug 2
Can be fitted from above or from below.

As in the above embodiments, it is preferable that the upper liquid absorbent core 3 is fitted into the inner plug 2 because the insertion length is smaller from the upper side, but the lower liquid absorbent core 4 is fitted into the inner plug 2. However, depending on the structure, it can be arbitrary from the upper side or the lower side.

The present invention will be specifically described below by showing test examples. Test Example 1 As the upper absorbent core, Table 1 of JP-A-63-24841
Composition No. According to the compounding ratio shown in 2, plaster, clay,
The components of the formulation consisting of diatomaceous earth and CMC are kneaded with water or hot water, molded by an extrusion molding machine, dried,
Diameter 7.0 mm, length 30 mm, and porosity 30-
A sample was prepared so as to be 40%.

As the lower absorbent core, polyethylene powder was sinter-molded into the shape shown in FIG. 20, and the disk portion 24 had a diameter of 7.0 mm and a height of 3.0 mm, and was drawn from the disk portion 24. The diameter of the formed portion is 3.0 mm and the total length is 43 mm, and after molding, the disk portion 24 has a shape as shown in FIG.
Shearing was performed so that the disk edge cutout 29 was provided on the side surface of the sample, and a sample having a width W of the disk edge cutout 29 of 1.0 mm was prepared. In addition, sintering of the lower absorbent core was performed at 150 ° C. with a dedicated aluminum mold filled with polyethylene powder.
After heating for 30 minutes in the above heating furnace, it was gradually cooled at room temperature for 30 minutes.

Further, the upper absorbent core and the lower absorbent core were fitted into the inner plugs, and the fitted absorbent core was set in the chemical vaporizer shown in FIG. At this time, the space heights of the upper and lower absorbent cores fitted in the inner plugs are 0.6 mm and 0.4 m, respectively.
m, 0.2 mm, and no space (contact), and these were respectively tested. It was set to 1-4.

Separately, a liquid chemical vaporizer shown in FIG. 33 having no disk edge cutout portion of the lower liquid absorbent core was also prepared, and the space height between the upper liquid absorbent core and the lower liquid absorbent core fitted in the inner plug was determined. 0.6 mm, 0.4
mm and 0.2 mm, these are comparative products N
o. It was set to 1-3.

Test product No. 1-4 and comparative product No. 1
The chemical liquid in the bottle used in the liquid chemical vaporizer was about 50 ml of a mixed aliphatic saturated hydrocarbon solution containing 14 to 17 carbon atoms and containing 0.67 W / V% of the insecticide d.d-T80-praletrin.

FIG. 23 shows a chemical vaporizer prepared as described above.
Set to the heating evaporation device shown in, heat the heating element to heat the upper surface of the upper absorbent core to 120 ° C.,
The transpiration amount of the chemical liquid for each heating time was measured. The results are shown in Table 1. The amount of transpiration was represented by the decrease in the amount of chemical liquid with the passage of unit time.

[0056]

[Table 1]

As is clear from the results shown in Table 1, as in Test Products 1 to 4, the disc portion 24 of the lower absorbent core 4 is provided with the disc edge notch 29 so that the upper absorbent core 3 and the inside of the bottle are connected to each other. With the chemical liquid evaporating body incorporating the liquid-absorbing core having a structure in which is directly communicated with each other, stable chemical liquid evaporation was obtained after heating for 400 hours.

On the contrary, in the case where the upper absorbent core 3 and the inside of the bottle 1 are not directly communicated with each other as in the comparative products 1 to 3, the upper absorbent core 3 of the upper absorbent core 3 does not reach 50 hours after the start of heat evaporation. The heating part was dried, the sucking of the chemical liquid 10 stopped, and a large amount of the chemical liquid 10 was left in the bottle 1 to stop the evaporation. The chemical liquid 10 that has evaporated up to 50 hours during heating and evaporation is almost the same as the amount already absorbed in the upper absorbent core 3 before using the heating and evaporation. Almost no chemical 10 was sucked up onto the liquid absorbent core 3. When the heating is interrupted, the chemical liquid 10 from the lower absorbent core 3 to the upper absorbent core 4 again.
However, even if it was heated again in this state, the absorption of the chemical liquid 10 stopped and the evaporation was stopped.

However, the upper liquid absorbent core 3 and the lower liquid absorbent core 4 are
In the case where the structure is fitted and integrated by the concavities and convexities provided on one side or the other side, the upper liquid absorbent core 3 and the inside of the bottle 1 are directly connected to each other similarly to the comparative products 1 to 3. It is known that a stable chemical vaporization can be obtained for a long period of time as in the case of the test products 1 to 4 even if the liquid is not communicated with the. One of the conditions to be maintained is that the lower liquid absorbent core 4 and the lower liquid absorbent core 4 are fitted with each other such that the position of the top surface is higher than the position of the bottom surface of the upper liquid absorbent core 3. Therefore, in the liquid absorbent core configurations of the test products 1 to 4, there is no problem even if the upper liquid absorbent core 3 and the lower liquid absorbent core 4 are fitted and integrated with each other, and stable in this case as well. It has been found that chemical vaporization can be obtained.

The reason why the liquid medicine is absorbed by the upper liquid absorbent core even when a gap is provided in the fitting between the upper liquid absorbent core and the lower liquid absorbent core is that the liquid medicine is mainly at the upper end of the lower liquid absorbent core. It is considered that the liquid accumulates with a constant thickness and that the height of the drug solution transmitted to the inner wall of the inner stopper due to the surface tension of the drug solution propagates to the inner wall. Therefore, the minimum required thickness of the gap is determined by the viscosity and surface tension of the chemical liquid, and further determined by the shape of the fitting portion. When a hydrocarbon solvent as used in the test product is used and the inside of the inner plug has a smooth surface, the gap is preferably about 0 to 0.6 mm.

Further, in the case of a structure in which the lower surface of the upper absorbent core and the upper surface of the lower absorbent core which are also smooth are brought into contact with each other and fitted into the inner plug, the chemical liquid from the lower absorbent core to the upper absorbent core is transferred. The transfer is performed on both contact surfaces, but if the mutual contact of the liquid absorbent cores in the inside plug is not uniform, for example, the smoothness of the contact surface due to variations in the upper liquid absorbent core or the lower liquid absorbent core during manufacturing. Is not sufficiently maintained, or if there is a problem in the fitting method such as shaking when fitting the absorbent core to the inside plug, when the heat evaporation is used, the lower absorbent core to the upper absorbent core It is possible that the transfer of the chemical solution to the liquid becomes unstable.In this case, it is necessary to devise the composition of both absorbent cores, especially the lower absorbent core, and the absorption of the liquid is stable even in the solvent used as the chemical solution. There is a factor that determines sex, and it becomes difficult to manage it.

Test Example 2 As the upper absorbent core, a sample having a diameter of 7.0 mm and a length of 30 mm was prepared by the same components and manufacturing method as in Test Example 1.
Further, as the lower liquid absorbent core, a sintered compact having the shape shown in FIG. 20 was formed in the same manner as in Test Example 1 such that the disc portion 24 had a diameter of 7.0 mm, a height of 3.0 mm, and a portion extended from the disc portion 24. Has a diameter of 3.0 mm and a total length of 43 mm, and after molding, shearing is performed so that the disk edge cutouts 29 are provided at two facing sides on the side surface of the disk 24 as shown in FIG. A sample was prepared in which the width W of each disc edge cutout 29 was 1.0 mm.

Thereafter, as in Test Example 1, the liquid chemical vaporizer shown in FIG. 1 was set. At this time, the space heights of the upper and lower absorbent cores fitted in the inner plugs are 0.6 mm and 0.4 m, respectively.
m, 0.2 mm, and no space (contact), these were respectively tested. It was set to 5-8.

Separately, one circular edge notch 29 having a width of 0.5 mm is provided at the lower liquid absorbent core, and the space height of the fitting portion between the upper liquid absorbent core and the lower liquid absorbent core is 0.6 mm and 0. .4 mm,
Those with 0.2 mm and none (contact) were prepared, and these were respectively tested. It was set to 9-12.

Test item No. The heating temperatures of the drug solution 10 in the bottle 1, the heating evaporation device, and the upper absorbent core used in the drug solution vaporizers 5 to 12 were the same as in Test Example 1. The results are shown in Table 2. The amount of transpiration was expressed as the decrease in the amount of drug solution with the passage of unit time.

[0066]

[Table 2]

As shown in the results shown in Table 2, the liquid chemical vaporizer has two circular edge cutouts 29 each having a width of 1 mm and one circular edge cutout 29 having a width of 0.5 mm.
A stable chemical vaporization was obtained in a heating use of 00 hr for a long time. However, in a chemical vaporizer in which the space height of the fitting portion between the upper liquid absorbent core and the lower liquid absorbent core is further widened, when the hydrocarbon solvent is used as the liquid chemical, 400 hr
It has been found that chemical evaporation may not be maintained for a long period of time.

Therefore, when fitting the upper and lower absorbent wicks, it is naturally preferable to bring them into close contact with each other in consideration of the chemical liquid during heating and evaporation, but even if they cannot be brought into close contact with each other, the test product, that is, From the test example regarding the case where the hydrocarbon solvent is used as the chemical solution, it is understood that the space distance is preferably about 0 to 0.6 mm.

[0069]

EFFECTS OF THE INVENTION Since the upper liquid absorbent core can be stably held, the upper liquid absorbent core and the lower liquid absorbent core are not damaged when the chemical vaporizer is incorporated into the apparatus body, and the assembling work is facilitated. This can be done and prevents liquid leakage due to changes in the outside air temperature, etc., and at the time of use by heating and evaporation, contact between the upper and lower liquid absorption cores held by the inner plug or the lower part in a minute gap in the vicinity. By preventing the formation of an air layer that hinders the transfer of liquid medicine from the liquid absorbent core to the upper liquid absorbent core, it is possible to prevent a decrease in the amount of liquid medicine sucked from the lower liquid absorbent core to the upper liquid absorbent core. By reducing the clogging in the liquid absorbent core and the lower liquid absorbent core, the chemical liquid can be stably evaporated.

[Brief description of drawings]

FIG. 1 is a test product No. in the present invention. 1-No. Sectional drawing of the chemical vaporizer which shows the Example in FIG.

2 is a cross-sectional view taken along the line AA of the chemical vaporizer shown in FIG.

FIG. 3 is a cross-sectional view showing still another configuration of the chemical vaporizer of the present invention.

FIG. 4 is a sectional view showing still another configuration of the chemical vaporizer of the present invention.

FIG. 5 is a cross-sectional view showing still another configuration of the chemical vaporizer of the present invention.

FIG. 6 is a cross-sectional view showing an example of a circular edge cutout portion of a lower liquid absorption core of the chemical vaporizer of the present invention.

FIG. 7 is a cross-sectional view showing an example of a circular edge cutout portion of a lower liquid absorption core of the chemical vaporizer of the present invention.

FIG. 8 is a cross-sectional view showing an example of a circular edge cutout portion of a lower liquid absorption core of the chemical vaporizer of the present invention.

FIG. 9 is a cross-sectional view showing an example of a circular edge cutout portion of a lower liquid absorption core of the chemical vaporizer of the present invention.

FIG. 10 is a cross-sectional view showing still another configuration of the chemical vaporizer of the present invention.

11 is a BB cross-sectional view of the chemical vaporizer shown in FIG.

FIG. 12 is a cross-sectional view showing still another configuration of the chemical vaporizer of the present invention.

13 is a cross-sectional view taken along the line CC of the chemical vaporizer shown in FIG.

FIG. 14 is a cross-sectional view showing still another configuration of the chemical vaporizer of the present invention.

FIG. 15 is a cross-sectional view taken along the line DD of the chemical vaporizer shown in FIG.

FIG. 16 is a cross-sectional view showing still another configuration of the chemical vaporizer of the present invention.

FIG. 17 is a sectional view showing still another configuration of the chemical vaporizer of the present invention.

FIG. 18 is a cross-sectional view taken along the line EE of the chemical vaporizer shown in FIG.

FIG. 19 is a sectional view showing still another example of the chemical vaporizer of the present invention.

FIG. 20 is a lower liquid absorbent core used in the chemical vaporizer of the present invention.

FIG. 21 is a lower liquid absorbent core provided with circular edge cutouts used in the liquid chemical vaporizer of the present invention.

FIG. 22 is a lower liquid absorbent core provided with two circular edge cutouts used in the chemical vaporizer of the present invention.

FIG. 23 is a cross-sectional view of a conventional heating evaporation device.

FIG. 24 is a perspective view of a conventional inner plug.

FIG. 25 is a cross-sectional view of a conventional chemical vaporizer.

FIG. 26 is a cross-sectional view of a conventional chemical vaporizer.

FIG. 27 is a cross-sectional view of a conventional chemical vaporizer.

FIG. 28 is a cross-sectional view of a conventional chemical vaporizer.

FIG. 29 is a cross-sectional view of a conventional chemical vaporizer.

FIG. 30 is a sectional view of a conventional chemical vaporizer.

FIG. 31 is a cross-sectional view of a conventional chemical vaporizer.

FIG. 32 is a sectional view of a conventional chemical vaporizer.

FIG. 33 shows a comparative product No. 1-No. Sectional drawing of the chemical vaporizer which shows the Example in 3.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Bottle, 2 ... Inner stopper, 3 ... Upper absorbent core, 4 ... Lower absorbent core, 5 ... Opening part, 6 ... Inner plug fitting part, 7 ... Screw part, 8 ... Guide part, 9 ... Groove part 10 ... Chemicals, 11 ... Protrusions, 12 ...
Hole portion, 13 ... First expanding portion, 14 ... Second expanding portion, 15 ... Liquid absorbing core, 16 ... Device body, 17 ... Heating element, 18 ... Vent hole,
19 ... rim, 20 ... notch, 21 ... cylindrical part, 22 ... vent hole, 23 ... hole part, 24 ... disk part, 25 ... projection part, 26 ...
Rod-shaped portion, 27 ... Tapered portion, 28 ... Annular protrusion portion, 29 ... Disc edge cutout portion, 30 ... Core fitting groove portion, 31 ... Side slit, 32 ... Ridge holding portion, 33 ... Circular edge groove portion, 34 ... Circular shape Edge protrusion, 35 ... Fitting hole, 36 ... Communication hole.

Claims (2)

[Claims] 1. A liquid medicine is absorbed by immersing a part of a liquid-absorbing core vertically held by a portion corresponding to an inner plug capped at an opening in an upper portion of the bottle into the liquid medicine contained in the bottle. A liquid chemical vaporizer in a heating vaporization device of a type in which the liquid chemical absorbed by heating the upper part of the liquid absorbent core by a heating element is used, in which the liquid absorbent core corresponds to a heating part It has a double structure consisting of a lower liquid absorption core corresponding to the dipping / sucking part, and the upper liquid absorption core and the lower liquid absorption core are inserted into the inner plug and brought into close or close contact with each other. A chemical vaporizer in a heating and vaporizing device, characterized in that a gap for communicating the inside of the bottle and the upper liquid absorbent core is set by fitting with the core. 2. A liquid medicine is absorbed by immersing a part of an absorbent core vertically held by a portion corresponding to an inner plug capped at an opening in an upper portion of the bottle into the liquid medicine contained in the bottle. Together with the liquid absorbent vaporizer in the heating vaporizer of the type that evaporates the liquid medicine absorbed by heating the upper part of the liquid absorbent core by the heating element, the liquid absorbent core is an upper liquid absorbent core corresponding to the heating unit, and It has a double structure composed of a lower liquid absorption core corresponding to the chemical liquid immersion / suction part, and the upper liquid absorption core and the lower liquid absorption core of the double liquid absorption core are provided on either or either of them. It has a structure in which it is fitted and integrated by the irregularities and the like, and furthermore, a gap is established by which the inside of the bottle and the upper absorbent core communicate with each other by fitting the inner stopper and the lower absorbent core. A chemical vaporizer in a heating vaporizer.