JP2011246351A - Thermal transpiration device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermal transpiration device, which can transpire a chemical agent efficiently without generating any unnecessary smoke.SOLUTION: The thermal transpiration device includes: a heat generator having a storage for a chemical agent constituted of a recessed part at a top surface; and the chemical agent stored in the storage in a state where an original material which transpires by being heated does not contain a foaming agent. On the surface defining the storage for the chemical agent, holes connecting the inside and the outside of the heat generator are formed.

Description

  The present invention relates to a heat transpiration apparatus, and more particularly, to a heat transpiration apparatus that can efficiently evaporate a drug and hardly generates wasteful smoke.

2. Description of the Related Art Conventionally, in order to control pests existing indoors or in warehouses, a heat transpiration apparatus capable of reaching a drug every corner has been used.
For example, a water heating exothermic type heat transpiration device is known in which the water container has good sealing properties and has a simple structure (see Patent Document 1).

  In the heating and transpiration device described in Patent Document 1, the self-heating container has an upper wall, a side wall, and a bottom wall, the water container is disposed on the upper wall side, and the hydropyrogenic substance is disposed on the bottom wall side. At least one of the bottom walls is provided with a discharge hole for discharging the steam containing the active ingredient into the outer container, and the outer container is used to evaporate the steam containing the active ingredient discharged from the self-heating container to the outside. A transpiration hole is provided.

  Further, a heat transpiration apparatus is known which has an excellent bumping prevention effect and can efficiently evaporate an active ingredient (see Patent Document 2).

  The heating and transpiration device described in Patent Document 2 is used in the form of a self-heating device 21 shown as a schematic cross-sectional view as shown in FIG. 8, and the self-heating device 21 includes a bottomed cylindrical outer container 22. The hydrothermal exothermic agent 28 is accommodated from the bottom to the side. The outer container 22 has a plurality of water holes at the bottom, and the water holes are closed by a member having water permeability, for example, a nonwoven fabric sheet 23. Further, the inside of the outer container 22 is partitioned into two spaces by a partition member 24. The partition member 24 is cylindrical and has a bottom having a substantially hollow hemispherical shape, and its side wall is disposed concentrically with the peripheral wall of the outer container 22.

  The hydrothermal exothermic agent 28 is filled in a space formed by the peripheral wall of the outer container 22, the partition member 24 and the nonwoven fabric sheet 23, and the inside of the partition member 24 is an active ingredient, a foaming agent that thermally decomposes to generate gas, A heat transpiration agent 27 comprising a foaming aid and other additives is accommodated. Further, the upper open surface of the outer container 22 is covered with a lid member 25 having a plurality of openings formed in a region corresponding to the upper open surface of the partition member 24. It is blocked by a hot melt film 26 having vent holes.

  The hydrothermal exothermic agent 28 is a substance that self-heats by reaction with water. For example, calcium oxide (quick lime) is used. Therefore, in use, by immersing the self-heating device 21 in the container 29 containing the water W, the water W flows into the outer container 22 through the water passage hole and comes into contact with the hydrating exothermic agent 28. The heat evaporating agent 27 is heated by the reaction heat, and the active ingredient evaporates, and is released to the outside (inside the room, etc.) through the vent of the hot melt film 26. Further, since the heat melting film 26 is thermally melted by heat radiation from the heat transpiration agent 27, heat of the outer container 22 and contact with the transpiration active ingredient, the transpiration active ingredient is a lid member from a relatively early stage of transpiration. It is efficiently discharged to the outside through the 25 openings.

JP 2001-334144 A JP 2005-120028 A

  In the above-mentioned prior art heat transpiration device, the interior of the room is contaminated by components other than the active ingredients contained in the chemical for heat transpiration, for example, ash such as decomposition products from an organic foaming agent, or death of foliage plants, etc. occurs. was there. Moreover, the smoke concentration in the room temporarily increased, and there was a risk of malfunction of the fire alarm.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a heat transpiration apparatus that can efficiently evaporate a drug from a solid carrier holding the drug and hardly generates wasteful smoke.

The above object of the present invention is achieved by the following configurations.
(1) A heat transpiration device comprising a heat generating device having a medicine storage portion formed of a recess on the upper surface, and a drug stored in the drug storage portion in a state in which a base material that evaporates by heating does not contain a foaming agent. Because
A heating transpiration apparatus, wherein a hole that communicates the inside and the outside of the heat generating device is formed on a surface that defines the medicine container.

(2) The heat transpiration apparatus according to (1), wherein the heat generation device generates heat with a hydrothermal exothermic agent.

(3) The heat transpiration apparatus according to the above (1), wherein the heat generating device generates heat with an air oxidation heat generating agent.

(4) The heat evaporation apparatus according to (1), wherein the heat generation device generates heat when energized.

(5) The heating and transpiration apparatus according to any one of (1) to (4), wherein the medicine is stored in the medicine storage section while being held by a carrier.

(6) The heating and transpiration apparatus according to any one of (1) to (4), wherein the drug is stored in the drug storage unit in a liquid or solid state.

(7) The depth of the medicine container is 20 mm or less, and the distance between the bottom of the heat generating device and the bottom of the medicine container is 60 mm or less, according to (1) to (6) above The heating transpiration apparatus in any one.

(8) The heating transpiration apparatus according to any one of (1) to (7), wherein the hole is formed as necessary or necessary.

If the pores are too small, the exothermic granules are clogged when the exothermic granules are used in the heat generator. If the pores are too large, the exothermic granules will pop out. Moreover, even if the hole has an appropriate diameter, if the number of holes is increased, there is a concern that the gas pressure is lowered and becomes a negative factor for diffusion. Therefore, a plastic case (soft blister, which will be described later) is provided with a plurality of holes so that heated gas is ejected in a direction perpendicular to the diffusion direction, which is considered to have poor diffusion efficiency, and a high effective volatilization rate is difficult to obtain. As a result, it was found that increasing the number of holes unexpectedly increases the effective volatilization rate and greatly suppresses the decomposition rate.
From this result, a high insecticidal effect can be expected by providing a hole.

  The drug may be encapsulated in a heat-meltable film or the like in a liquid or solid state.

  The heating and transpiration device of the present invention is provided with a concave portion or a convex portion on at least one of the bottom surface of the drug storage unit and the lower surface of the carrier stored in the drug storage unit while holding the drug, and the carrier has a thickness. A through-hole penetrating in the direction is formed, and a communication portion that communicates from the bottom surface of the carrier storage portion to the outside of the heat transpiration device is formed and stored in the carrier storage portion, or an outer diameter is stored in the carrier storage It is preferable that the inner diameter of the portion is smaller than the inner diameter, and the outer peripheral surface is accommodated in the carrier accommodating portion in a state of being separated from the side surface of the carrier accommodating portion.

  The heat generation apparatus has a medicine storage section in which a heating means and a recess are formed. The exothermic means may be any structure as long as it has a function of generating heat and providing heat necessary for transpiration of the medicine to the medicine container on the upper surface. Examples thereof include an electric heater, a hydrothermal exothermic agent, and an oxidizing exothermic agent. It is done. As the electric heater, for example, an electric heater having an exothermic temperature of 30 to 800 W and 200 to 500 ° C. can be used, and it is preferable that a means (PTC heater) for keeping a desired temperature constant is provided.

  The heat conduction from the heat generating means to the medicine container is performed with respect to both constituent materials, for example, materials such as metal, ceramics, glass, paper, and heat-resistant plastic (which may be of the same type or different types), or both of these materials. It is performed via a gas such as air, nitrogen, oxygen or the like with respect to the medicine container. When performing via gas, the heat generating apparatus may be provided with a structure that allows gas to pass inside or outside.

  In a device using a hydrothermal agent as the heat generating means, the heat generating device is composed of a container that stores the hydrothermal agent and a medicine storage unit that stores and holds the carrier. The container is preferably filled with a hydrothermal exothermic agent and has a water passage portion (water passage hole) near the bottom and / or the bottom of the side surface. Here, the vicinity of the bottom of the side surface is a portion of the side surface of the container that is in contact with water or in contact with the water surface, and represents a range in which water can flow into the container through the water passage portion.

When a hydrothermal agent is used as the heat generating means, the diameter of the container containing the hydrothermal agent is preferably 5 cm or more, and more preferably 5 to 10 cm from the viewpoint of operability. Moreover, 2-9 cm is preferable and, as for the height of the said container, 3-8 cm is more preferable. Then, it is preferred that the volume of the container (hydro exothermic agent filled portion) is 40 cm ³ or more, and more preferably 100~480cm ^3.

  The medicine container is formed of a recess having a predetermined diameter, depth, and bottom surface, and is provided on the upper surface of the heat generating device. When the heat generating device is cylindrical, the medicine container is preferably concentric cylindrical. 10-90 mm is preferable and, as for the internal diameter of this chemical | medical agent storage part, 20-80 mm is more preferable. The depth of the medicine container is configured to be substantially equal to or higher than the thickness of the carrier described later, and when the carrier is housed in the medicine container, the upper surface of the carrier is substantially the same as the upper surface of the medicine container. It should be equal or lower. Although the depth of a chemical | medical agent storage part is not specifically limited, It is preferable to set it as about 5-25 mm, and it is more preferable to set it as 5-20 mm.

  Moreover, although the bottom face of a medicine storage part may be formed as a flat part, a concave part or a convex part can be provided as desired. By providing the concave portion or the convex portion, when the carrier is stored in the medicine storage portion, the lower surface of the carrier has a non-contact surface that does not contact the medicine storage portion, and a gap is formed below the carrier. When providing a recessed part or a convex part in the bottom face of a medicine storage part, 5 to 40% of the depth of a medicine storage part is preferred, and 10 to 25% is more preferred. Further, the diameter of the concave portion or the convex portion is preferably 20 to 95%, more preferably 25 to 90% of the diameter of the circle when the medicine container is cylindrical. That is, when the inner diameter of the medicine container is 20 to 80 mm, the concave or convex portion provided on the bottom surface of the medicine container is preferably 4 to 76 mm, and more preferably 5 to 72 mm. Moreover, it is preferable that the depth of a recessed part or the height of a convex part shall be 0.5-5 mm, and 1-3 mm is more preferable. By setting it as such a structure, a space part can be formed under the support | carrier. If this space portion is too wide or too narrow, heating of the carrier will be insufficient, and the drug will be difficult to evaporate, which is not preferable.

  The hydrothermal exothermic agent filled in the container is a substance that self-heats by reaction with water and can reach an exothermic temperature of 100 to 400 ° C. within 10 minutes. For example, calcium oxide, magnesium chloride, Aluminum chloride, calcium chloride, iron chloride, alum, zinc sulfate, magnesium sulfate, nickel chloride, etc. can be used. Further, in order to efficiently evaporate the drug, it is necessary to use an effective amount capable of heating the carrier at 80 to 350 ° C. From the relationship with the rate of temperature rise, the entire container described above is usually used in an amount of 40 to 400 g. It is preferable to fill. The water used at this time is suitably 10 to 100 mL. The heat generating means using the hydrothermal exothermic agent, when using the heat transpiration device, infiltrated water from the water passage portion and brought into contact with the hydrothermal exothermic agent to generate heat, and this heat was placed and held in the medicine container. It conducts to the carrier.

The carrier accommodated in the medicine accommodating portion is a solid porous body, for example, Mg ₂ Al ₄ Si ₅ O ₁₈ (cordierite), Al ₆ Si ₂ O ₁₃ (mullite), Al ₂ O ₃ (alumina). ), Etc., inorganic substances such as fluorite, talc, clay, kaolin, pearlite, calcium hydrogen phosphate, etc., tablets obtained by tableting them, or binders such as starch and carboxymethylcellulose salt are added and mixed. It can be molded and used in the form of a molding agent.

  The carrier is a plate material having a desired thickness that has an outer shape substantially equal to or smaller than the inner diameter of the medicine container. When the medicine container is cylindrical, the carrier is preferably formed in a columnar shape from the viewpoint of heating efficiency. For example, when the inner diameter of the medicine container is 20 to 80 mm, the outer diameter (diameter) of the carrier is preferably 20 to 80 mm, and more preferably 18 to 78 mm. Further, the thickness of the carrier is set to be substantially equal to or smaller than the depth of the medicine container so that the upper surface of the carrier does not protrude from the upper surface of the medicine container when the carrier is housed in the medicine container. To. In the present invention, the thickness of the carrier is preferably 2 to 10 mm, more preferably 3 to 6 mm.

  The contact surface (bottom surface) of the carrier with the bottom surface of the medicine container may be provided with a recess or a protrusion as desired. By providing a concave or convex portion, when the carrier is stored in the medicine storage portion, the lower surface of the carrier has a non-contact surface that does not contact the bottom surface of the medicine storage portion, and thus a gap is formed below the carrier. Is done. When providing a recessed part or a convex part in the lower surface of a support | carrier, the depth or height is 10-50% of the thickness of a support | carrier, and 20-40% is more preferable. Further, the diameter of the concave portion or convex portion is preferably 20 to 95%, more preferably 50 to 70% of the diameter of the circle when the carrier is cylindrical. That is, when the carrier has a diameter of 18 to 78 mm, the concave or convex portion provided on the carrier preferably has a diameter of 4 to 74 mm, and more preferably 9 to 55 mm. Moreover, it is preferable that the depth of a recessed part or the height of a convex part shall be 0.2-5 mm, and 0.6-3 mm is more preferable. By setting it as such a structure, sufficient space part can be formed in order to evaporate a chemical | medical agent under a support | carrier.

  In addition, when the carrier is produced with a diameter substantially equal to the inner diameter of the medicine container, it is preferable to form a through hole in the thickness direction in the carrier. This through hole is preferably formed at a position communicating with a space formed below the carrier. When providing a through-hole, when the diameter of a support | carrier is 18-78 mm, it is preferable that the diameter of a through-hole shall be 3-60 mm, and 10-50 mm is more preferable. By providing a through hole in the carrier, the drug evaporated in the space formed below the carrier can be released to the outside through the through hole. In addition, one or two or more through holes can be provided.

  When the outer diameter of the carrier is configured to be smaller than the inner diameter of the medicine container, the outer peripheral surface of the carrier is separated from the side surface of the medicine container when the carrier is housed in the medicine container. A communication part is formed around the periphery. In this case, the outer diameter of the carrier is preferably about 50 to 98%, more preferably about 60 to 96% of the inner diameter of the medicine container. That is, when the inner diameter of the medicine container is 20 to 80 mm, the outer diameter of the carrier is preferably 10 to 78 mm, and more preferably 12 to 77 mm. By setting it as such a structure, the chemical | vapor which evaporated to the space part formed under the support | carrier can be discharge | released outside through a communicating part.

  Further, the carrier may be formed with an outer diameter smaller than the inner diameter of the medicine container and a through hole. Further, a plurality of the outer peripheral surfaces of the carrier may be cut out in the thickness direction to form a communication portion.

  In the present invention, the space ratio is the ratio of the space portion to the volume of the portion surrounded by the bottom surface of the medicine storage portion, the side surface of the medicine storage portion and the top surface of the carrier formed when the carrier is stored in the medicine storage portion, The space ratio is preferably 5 to 50%, and more preferably 18 to 40%. By setting the space ratio to 5 to 50%, the carrier can be sufficiently heated from both the lower surface side and the side surface thereof, and the vaporized medicine from the lower side of the carrier can be efficiently released to the outside. . Further, by providing a gap around the carrier, the drug evaporated by heating is easily released to the outside by riding on the rising air current in the gap.

  The method of holding the drug on the carrier is not particularly limited. For example, the drug can be held by dropping the drug solution or impregnating the carrier with the drug solution and removing the solvent. In addition, the drug can be mixed and kneaded during molding of the carrier, or the carrier can be impregnated by spraying. In the present invention, for the purpose of preventing the generation of useless smoke, it is preferable that the carrier retains only the drug. However, in addition to the drug, the drug is supported on the carrier and an auxiliary agent for promoting transpiration, for example, dibutylhydroxytoluene Further, an antioxidant such as pentaerythritol tetrakis, a solvent such as kerosene and liquid paraffin may be added.

  In the case of using an insecticide as a drug, the intended one is used without any particular limitation. Pyrethroid compounds such as furthrin, metofluthrin, profluthrin, imiprothrin, empentrin, etofenprox; carbamate compounds such as propoxer and carbaryl; organic phosphorus compounds such as fenitrothion and DDVP; oxadiazole compounds such as methoxadiazone; fipronil and the like Phenylpyrazole compounds; sulfonamide compounds such as amidoflumet; neonicotinoids such as dinotefuran and imidacloprid; Hormonal agents such as insect juvenile hormone agents such as droprene, anti-juvenile hormone agents such as plecosene, molting hormone agents such as ecdysone, etc .; What combined 1 type or 2 types or more, such as essential oils, is mentioned.

  In addition to the insecticides as necessary, insecticides and acaricides such as IBTA, IBTE, quaternary ammonium salts and benzyl salicylate; rotenone, p-menthane-3,8-diol, diethylmethoramide, di -Repellents such as n-butyl succinate and hydroxyanisole; bactericides such as guanidine fungicides such as PCMX, IPBC, TBZ, isopropylmethylphenol, chlorhexidine gluconate and chlorhexidine hydrochloride; lauryl methacrylate, geranyl crotonate, catechin and the like Deodorants; essential oils such as rose oil, lavender oil, mint oil; and flavors such as pinene, limonene, linalool, menthol, eugenol, and the like.

  As the air oxidation exothermic agent, exothermic agent such as alkali metal sulfide, polysulfide, hydrosulfide or hydrated salt, and catalyst material (for example, carbon black, activated carbon, charcoal, coke, asphalt) as required Is mentioned.

  As a method utilizing an oxidation reaction of metal sulfide, a method of bringing a mixture of sodium sulfide and iron carbide into contact with oxygen can be exemplified.

  Examples of the hydrothermal exothermic agent include substances that react exothermically only by adding water, such as calcium oxide, magnesium chloride, aluminum chloride, calcium chloride, iron chloride.

  An electric heat source that generates heat when energized can also be used as the heat source for the insecticide. For example, a ferrochrome wire, a nichrome wire, a positive temperature coefficient thermistor (PCT), a sheet heater, a heater using a semiconductor, and the like can be exemplified.

  Among these, a chemical reactant method, an electric heating method, and a hydrothermal heat generation type are preferable from the viewpoint of safety without using a match or a flame by an igniter.

In the present invention, the upper surface of the medicine container may be open, or may be blocked by at least one of a hot-melt film having a vent, a wire mesh, and a metal plate.
Moreover, the hole formed in the surface which defines a chemical | medical agent storage part may be obstruct | occluded with the punching piece opened along a cut line with a heat-meltable film, a pressure, and a pressure.
Moreover, the hole formed in the surface which defines a chemical | medical agent storage part is abbreviate | omitted a structure before using an apparatus, and may be formed as needed or needed.

  The heat transpiration apparatus of the present invention can be used for the purpose of pest control, further sterilization, deodorization, fragrance and the like.

It is a perspective view of the heating transpiration apparatus which concerns on 1st Embodiment of this invention. It is a section schematic diagram for explaining the structure of the heating transpiration apparatus concerning a 1st embodiment of the present invention. It is a cross-sectional schematic for demonstrating the structure of the heating transpiration apparatus which concerns on 2nd Embodiment of this invention. It is a cross-sectional schematic for demonstrating the structure of the heating transpiration apparatus which concerns on 3rd Embodiment of this invention. It is a cross-sectional schematic for demonstrating the structure of the heating transpiration apparatus which concerns on 4th Embodiment of this invention. (A) is a perspective view of the container filled with a chemical | medical agent, (b) is the sectional drawing. It is a schematic diagram which shows the structure of the collection apparatus used in the Example. It is a cross-sectional schematic for demonstrating the structure of the heating transpiration apparatus of a prior art.

  Hereinafter, embodiments of the heating and transpiration apparatus of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a perspective view of a heating and transpiration apparatus according to a first embodiment of the present invention, and FIG. 2 is a sectional view thereof. The heating and transpiration apparatus 1 according to the first embodiment includes a heat generation apparatus A including a bottomed cylindrical container 11 and a medicine storage section 12 having a recess provided on the upper surface of the container 11, and stores the medicine. The carrier 12 is accommodated in the part 12. A heat generating agent 4 is accommodated inside the heat generating device A, and the bottom of the heat generating device A is closed by a bottom plate 5 having a plurality of water passage portions (water passage holes 13). It is blocked by a member having water permeability, for example, a nonwoven fabric sheet 6. In addition, a plurality of legs 7 are provided at the bottom of the heat generating device A, and a gap is formed below the bottom plate 5 so that water can flow.

The constituent member of the heat generating device A is not particularly limited as long as it has heat resistance with respect to the heat generation temperature of the hydrothermal exothermic agent 4 housed in the heat generating device A. For example, a heat resistant plastic container, Examples include paper containers, metal containers, ceramic containers, and glass containers. The container 11 which is a constituent member of the heat generating apparatus A preferably has a diameter of 5 cm or more, and more preferably 5 cm to 10 cm. Moreover, 2-9 cm is preferable and, as for the height of the heat generating apparatus A, 3-8 cm is more preferable. Then, it is preferable that the volume of the container 11 is 40 cm ³ or more, and more preferably 100~480cm ^3.

  The medicine container 12 is a substantially cylindrical recess recessed from the upper surface of the container 11 toward the inside, and has an inner diameter of 20 to 80 mm and a depth of about 5 to 25 mm. In the first embodiment, a substantially cylindrical gap-forming convex portion 18 is formed at a substantially central portion on the bottom surface of the medicine storage portion 12. The gap-forming convex portion 18 has a diameter of 4 to 76 mm and a height of about 0.5 to 5 mm.

A plurality of holes 8 a and 8 b are formed in the inner peripheral surface and the bottom surface that define the medicine storage portion 12 so that the inside and the outside of the heat generating apparatus A communicate with each other. The hole 8a formed on the inner peripheral surface is located above the carrier a placed on the gap forming convex portion 18. The hole 8b formed in the bottom surface is located facing the gap between the carrier a and the bottom surface.
The diameters of the holes 8a and 8b are preferably 0.1 mm or more and 3 mm or less. The number of holes 8a and 8b is preferably three or more. When the diameters of the holes 8a and 8b are less than 0.1 mm, clogging is caused by the hydrothermal exothermic agent 4, and when the diameter is larger than 3 mm, the hydrothermal exothermic agent 4 is ejected.

  The hydrothermal exothermic agent 4 is a substance that self-heats by reaction with water. For example, calcium oxide (quick lime) can be used. The heating temperature is preferably 300 to 400 ° C., and in the first embodiment, the content of the hydrothermal exothermic agent 4 is about 40 to 400 g, and the entire interior of the heat generator A is filled.

  The carrier a stored in the medicine storage unit 12 is a solid inorganic porous body, and for example, clay can be used. In the first embodiment, the carrier a is a substantially columnar plate member having a diameter smaller than the inner diameter of the medicine container 12, as shown in FIGS. 1 and 2, and has a diameter of 18 to 78 mm and a thickness of 2 to 2. It is about 10 mm.

  With the above configuration, when the carrier a is stored in the medicine storage portion 12, a space portion is formed below the carrier a and a communication portion 19 is formed around the carrier a. Further, even if the height of the gap-forming convex portion 18 and the thickness of the carrier a are combined, it is configured to be lower than the depth of the medicine storage portion 12, so that the upper surface of the carrier a protrudes from the upper surface of the medicine storage portion 12. Absent.

  In the first embodiment, in use, the heating and transpiration device 1 is placed in a container containing water. Then, water flows from the water passage hole 13 provided at the bottom of the container 11 through the gap formed by the leg portion 7 of the heat generating device A, contacts the hydrothermal exothermic agent 4, and generates heat of reaction. The carrier a is heated from both the lower surface side and the side surface thereof, and the drug evaporated from the upper surface of the carrier a is released upward as it is, and the drug evaporated from the lower surface of the carrier a is as indicated by an arrow Y. From the space portion formed below, it evaporates through the communication portion 19 and is discharged to the outside (inside the room or the like).

Here, holes 8a and 8b are formed in the medicine storage part 12 to communicate the inside and the outside of the heat generating apparatus A. Heated and pressurized gas (water vapor) is generated in the heat generator A, and this gas (water vapor) is ejected from the holes 8a and 8b with a strong momentum. Then, an air current is generated around the carrier a by the force of the jetted gas (water vapor), and volatilization from the carrier a is promoted, and volatilization is performed efficiently.
In the above embodiment, the hole 8b may be omitted.

(Second Embodiment)
FIG. 3 is a cross-sectional view of the heating and transpiration apparatus according to the second embodiment of the present invention. In the following description, the same structure and the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.

  The heating and transpiration apparatus 10 of the second embodiment forms the bottom surface of the medicine container 12 of the heat generator B flat, and the carrier e is formed with a diameter substantially equal to the inner diameter of the medicine container 12, and is cut into a substantially center. The notch 16 is formed and the through-hole 15 is formed, and other configurations are the same as those in the first embodiment.

  In 2nd Embodiment, the chemical | medical agent storage part 12 which comprises the heat generation apparatus B is a substantially cylindrical recessed part indented toward the inside from the upper surface of the container 11 which comprises the heat generation apparatus B, The bottom face is It is constructed flat. The depth of the medicine container 12 is about 5 to 25 mm, and the inner diameter is about 20 to 80 mm.

  A plurality of holes 8a and 8b for communicating the inside and the outside of the heat generating device B are formed on the inner peripheral surface and the bottom surface that define the medicine storage unit 12. The hole 8a formed in the inner peripheral surface is located above the carrier e. The hole 8b formed in the bottom face is located facing the notch recess 16 of the carrier a.

  As shown in FIG. 3, the carrier e is a substantially columnar plate member having a diameter substantially equal to the inner diameter of the medicine container 12, and has a diameter of 20 to 80 mm and a thickness of about 2 to 10 mm. By setting the thickness of the carrier e to 2 to 10 mm, the upper surface of the carrier e does not protrude from the upper surface of the drug storage unit 12. The lower surface of the carrier e that comes into contact with the bottom surface of the medicine container 12 has a substantially cylindrical shape cut out in a substantially cylindrical shape to form a cutout recess 16 having a diameter of 12 to 66 mm and a depth of 1 to 6 mm. Further, a through hole 15 having a diameter (about 3 to 55 mm) smaller than the diameter of the notch recess 16 is formed in the approximate center of the carrier e. Therefore, when the carrier e is stored in the medicine storage part 12, a space portion is formed below the carrier e, and a through hole 15 communicating with the space portion is formed.

  In the second embodiment, the carrier e is heated from both the lower surface side and the side surface side, the drug evaporated from the upper surface of the carrier e is released upward, and the drug evaporated from the lower side of the carrier e is indicated by an arrow Y. As described above, it evaporates from the space portion formed below the carrier e through the through hole 15 and is discharged to the outside (inside the room or the like).

Here, holes 8 a and 8 b are formed in the medicine storage unit 12 to communicate the inside and the outside of the heat generator B. Heated and pressurized gas (water vapor) is generated in the heat generator B, and this gas (water vapor) is ejected from the holes 8a and 8b with a strong momentum. Then, air current is generated around the carrier e due to the force of the jetted gas (water vapor), volatilization from the carrier e is promoted, and volatilization is performed efficiently.
In the above embodiment, the hole 8b may be omitted.

(Third embodiment)
FIG. 4 is a cross-sectional view of a heat transpiration apparatus according to the third embodiment of the present invention. In the following description, the same structure and the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.

  The heating and transpiration apparatus 20 of the third embodiment is such that a gap forming recess 17 is formed on the bottom surface of the medicine storage section 12 of the heat generating apparatus C, and a through hole 15 is formed in the carrier c substantially at the center. The configuration is the same as that of the first embodiment.

  In 3rd Embodiment, the chemical | medical agent storage part 12 which comprises the heat generation apparatus C is a substantially cylindrical recessed part indented toward the inside from the upper surface of the container 11 which similarly comprises the heat generation apparatus C, and the bottom face A substantially cylindrical gap forming recess 17 is formed in the substantially center. The depth of the medicine container 12 is about 5 to 25 mm, and the inner diameter is about 20 to 80 mm. The diameter of the gap forming recess 17 is about 4 to 76 mm, and the depth is about 0.5 to 5 mm.

  A plurality of holes 8 a and 8 b are formed in the inner peripheral surface and the bottom surface defining the medicine storage portion 12 so as to communicate the inside and the outside of the heat generating device C. The hole 8a formed in the inner peripheral surface is located above the carrier c placed on the gap forming convex portion 18. The hole 8b formed in the bottom surface is located facing the gap between the carrier a and the bottom surface.

  As shown in FIG. 4, the carrier c is a substantially columnar plate member having a diameter substantially equal to the inner diameter of the medicine container 12, and has a diameter of 20 to 80 mm and a thickness of about 2 to 10 mm. By setting the thickness of the carrier c to 2 to 10 mm, the upper surface of the carrier c does not protrude from the upper surface of the medicine container 12. Further, a through hole 15 having a diameter smaller than the diameter of the gap forming recess 17 is formed in the approximate center of the carrier c, and the diameter is about 3 to 55 mm. Therefore, when the carrier c is stored in the medicine storage portion 12, a space portion is formed below the carrier c, and a through hole 15 communicating with the space portion is formed.

  In the third embodiment, the carrier c is heated from both the lower surface side and the side surface side, the drug evaporated from the upper surface of the carrier c is released as it is, and the drug evaporated from the lower side of the carrier c is indicated by an arrow Y. As described above, it evaporates through the through-hole 15 and is discharged to the outside (such as indoors).

Here, holes 8 a and 8 b are formed in the medicine storage unit 12 to communicate the inside and the outside of the heat generating device C. Heated and pressurized gas (water vapor) is generated in the heat generator C, and this gas (water vapor) is ejected from the holes 8a and 8b with a strong momentum. Then, an air flow is generated around the carrier c due to the force of the jetted gas (water vapor), volatilization from the carrier c is promoted, and volatilization is performed efficiently.
In the above embodiment, the hole 8b may be omitted.

(Fourth embodiment)
FIG. 5 is a cross-sectional view of a heat transpiration apparatus according to the fourth embodiment of the present invention. In the following description, the same structure and the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.

  In the heating and transpiration device 30 of the fourth embodiment, the gap forming convex portion 18 is formed on the bottom surface of the medicine storage portion 12 of the heat generating device A, and the carrier d is formed with a diameter smaller than the inner diameter of the medicine storage portion 12. The through-hole 15 is formed in the approximate center.

  In 4th Embodiment, the chemical | medical agent storage part 12 which comprises the heat generating apparatus A is a substantially cylindrical recessed part indented toward the inside from the upper surface of the container 11 which similarly comprises the heat generating apparatus A, and the bottom face A substantially cylindrical gap-forming convex portion 18 is formed at substantially the center. The depth of the medicine container 12 is about 5 to 25 mm, and the inner diameter is about 20 to 80 mm. The diameter of the gap forming convex portion 18 is about 4 to 76 mm and the height is about 0.5 to 5 mm.

  A plurality of holes 8 a and 8 b are formed in the inner peripheral surface and the bottom surface that define the medicine storage portion 12 so that the inside and the outside of the heat generating apparatus A communicate with each other. The hole 8a formed in the inner peripheral surface is located above the carrier d placed on the gap forming convex portion 18. The hole 8b formed in the bottom surface is located facing the gap between the carrier a and the bottom surface. Further, a hole 8c facing the through hole 15 of the carrier d is also formed on the upper surface of the gap forming convex portion 18. The diameter of the hole 8c is also preferably 0.1 mm or more and 3 mm or less, like the holes 8a and 8b. The reason is the same as the holes 8a and 8b.

  As shown in FIG. 5, the carrier d is a substantially columnar plate member having a diameter smaller than the inner diameter of the medicine container 12, and has a diameter of 18 to 78 mm and a thickness of about 2 to 10 mm. By setting the thickness of the carrier d to 2 to 10 mm, the upper surface of the carrier d does not protrude from the upper surface of the medicine storage unit 12. Further, a through hole 15 having a diameter smaller than the diameter of the gap forming convex portion 18 is formed in the approximate center of the carrier d, and the diameter is about 3 to 55 mm. Therefore, when the carrier d is stored in the medicine storage portion 12, a space portion is formed below the carrier d, and a communication portion 19 is formed around the carrier d.

  In the fourth embodiment, the carrier d is heated from both the lower surface side and the side surface thereof, and the drug evaporated from the upper surface of the carrier d is discharged upward, and the drug evaporated from the lower side of the carrier d is indicated by an arrow Y. As described above, it evaporates through the communication part 19 and is discharged to the outside (such as indoors).

Here, holes 8a, 8b, and 8c are formed in the medicine storage unit 12 to communicate the inside and the outside of the heat generator A. Heated and pressurized gas (water vapor) is generated in the heat generator A, and this gas (water vapor) is ejected from the holes 8a, 8b, and 8c with a strong momentum. Then, an air flow is generated around the carrier d by the force of the jetted gas (water vapor), volatilization from the carrier d is promoted, and volatilization is performed efficiently.
In the above embodiment, the hole 8b may be omitted.

  In each of the above embodiments, a carrier carrying a medicine is housed in the medicine housing section, but the carrier may be omitted and a liquid medicine may be housed in the medicine housing section. In this case, the hole 8b formed in the bottom surface of the medicine container is omitted.

  In addition, each of the above embodiments is a heat generation apparatus using a hydrothermal exothermic agent, but instead of this, the heat generation apparatus may use an air oxidation exothermic agent or a heat generating means that generates heat by energization.

Examples according to the prior invention which are comparative examples of the present invention and examples of the present invention will be described below.
[Example according to the prior invention (comparative example)]
As a comparative example of the present invention, a test was performed using a heat transpiration apparatus according to the prior invention having a configuration in which the hole of the medicine container was omitted. The configuration of the heating transpiration apparatus according to the prior invention is the same as the configuration of the heating transpiration apparatus of the present invention except that the holes are omitted.

(Preparation of carriers a to e)
To 99.2 g of clay, 0.8 g of sodium carboxymethylcellulose was mixed, and 30 g of water was added and kneaded. After kneading, it was extruded into a flat plate having a thickness of 3.5 mm with an extruder, die-cut into a cylindrical shape with the diameter shown in Table 1 below, and dried at 40 ° C. for 24 hours. After drying, the carriers c to e were processed according to Table 1 to form through holes or cutout recesses. Note that the through hole and the notch recess were formed concentrically.
These carriers a to e are impregnated with 750 mg of phenothrin as an insecticide, 100 mg of d · dT-cyphenothrin, and 10.8 mg of an antioxidant (trade name: Irganox 1010) dissolved in 10 mL of acetone. I let you.

(Production of heat generator A)
As shown in FIGS. 1 and 2, the bottom surface of a bottomed cylindrical container having a diameter of 66 mm and a height of 52 mm has a substantially cylindrical shape with a diameter of 42 mm and a depth of 8 mm. A heat generator A having a carrier accommodating portion in which a 1 mm gap forming convex portion was formed was produced. Inside the heat generating apparatus A, 130 g of calcium oxide as a hydrothermal exothermic agent was entirely filled from the bottom to the side. A gap was formed by a leg portion at the bottom of the container, a bottom plate having a plurality of water passage portions (water passage holes) was disposed, and the water passage holes were closed with a nonwoven fabric sheet.

(Preparation of heat generator B)
A heat generator B as shown in FIG. 3 was produced in the same manner as the heat generator A except that the bottom surface of the carrier storage part was formed flat.

(Preparation of heat generator C)
A heat generating device C as shown in FIG. 4 was produced in the same manner as the heat generating device A, except that a gap forming recess having a diameter of 25 mm and a depth of 1 mm was formed at the substantially central portion of the bottom surface of the carrier storage portion.

[Test Example 1: Examples 1 to 4, Comparative Examples 1 to 5]
A heat transpiration apparatus was produced according to the combinations shown in Table 2 below using the produced heat generators A to C and the carriers a to e. Example 1 corresponds to the heating and transpiration device 1 shown in FIGS. 1 and 2, Example 2 corresponds to the heating and transpiration device 10 shown in FIG. 3, and Example 3 corresponds to the heating and transpiration device 20 shown in FIG. In addition, Example 4 corresponds to the heating and transpiration device 30 shown in FIG.
Table 2 also shows the space ratio formed when the carriers a to e are accommodated in the carrier accommodating portions 12 of the heat generators A to C.

Examples 1 to 4 and Comparative Examples 1 to 5 shown in Table 2 were subjected to heat transpiration by immersing each in a container containing 50 mL of water, and the transpiration components were adsorbed to silica gel using the collection device shown in FIG. . The collection device in FIG. 7 will be described later. The silica gel was immersed in 1000 mL of acetone and extracted with ultrasonic waves for 50 minutes, followed by suction filtration, and 5 mL of an internal standard (mixed solution of di-2-ethylhexyl sebacate and dibutyl phthalate) was added to prepare an analysis sample. And the analysis sample was quantitatively analyzed using the gas chromatograph, and the transpiration rate (%) was calculated | required about the insecticide by following Formula. The results are shown in Table 2.
Transpiration rate (%) = (amount of insecticide transpiration / content of insecticide in carrier before transpiration) × 100

  As shown in the results of Table 2, all of the heat transpiration systems of Examples 1 to 4 have a transpiration rate of about 70% for phenothrin and about 60% for d · d-T-cyphenothrin. Compared with the heat transpiration system of ˜5, the transpiration rate was improved by about 10% with phenothrin and about 10-20% with d · d-T-cyphenothrin. Improving the transpiration rate is important for obtaining an insecticidal effect, and it is not necessary to impregnate extra chemicals to obtain the insecticidal effect. Therefore, it turned out that the heating transpiration system of Examples 1-4 can transcribe an active ingredient efficiently.

[Test Example 2: Example 5, Comparative Example 6]
As Example 5, a heat evaporation system comprising a combination of the heat generating apparatus A and the carrier b similar to that in Example 1 was used. The carrier b was impregnated with 1300 mg of phenothrin and 150 mg of d · dT-cyphenothrin. On the other hand, as Comparative Example 6, the same heat generating apparatus B as in Comparative Example 2 and a heat evaporation apparatus comprising a combination of the carrier a was used. Impregnated with phenothrin. The insecticidal effect was examined using the heat transpiration apparatus of Example 5 and Comparative Example 6.

(Test method)
1. Open condition 10 adults / places of black cockroach are placed diagonally at the two corners of the floor of the room under the ventilation condition of 1 time / h in an 8 tatami room. Example 5 or Comparative Example 6 Transpiration in the center of the room. After confirming knockdown (KD) over time and exposing for 2 hours, KT ₅₀ (time until half of the animals were lethal), KD rate after 2 hours, and lethal rate after 48 hours were confirmed. The results are shown in Table 3. The results are average values obtained by repeating the test twice.
2. Slit conditions 10 adults of black cockroach are placed in a box of 30cm x 30cm x 30cm diagonally formed with a slit (cut) with a width of 1cm and a height of 10cm on opposite sides, and two corners of the floor of an 8-tatami room It was installed so as to be diagonal. Example 5 or Comparative Example 6 was evaporated in the center of the room under a ventilation condition of 1 time / h. Knockdown (KD) was confirmed over time and exposed for 2 hours to confirm KT ₅₀ , KD rate after 2 hours, and lethal rate after 48 hours. The results are shown in Table 3. The results are average values obtained by repeating the test twice.

From the results shown in Table 3, the KT ₅₀ value of the heating transpiration apparatus of Example 5 was about 15 minutes earlier than the heating transpiration apparatus of Comparative Example 6 under open conditions. In addition, in the slit condition, the KT ₅₀ value of the heating transpiration apparatus of Example 5 is significantly faster than the KT ₅₀ value of the heating transpiration apparatus of Comparative Example 6, and the mortality after 48 hours is also the example. The heat transpiration device of No. 5 was 95% and could kill most black cockroaches. From this result, the heat transpiration system of Example 5 can obtain a higher lethal effect than the heat transpiration apparatus of Comparative Example 6, and is also effective for black cockroaches in places where contact with the drug is restricted. It turns out that it can be lethal.

[Test Example 3: Example 5, Comparative Example 7]
A heating evaporation device (test sample) of Example 5 and a partitioning member 24 of the self-heating device 21 shown in FIG. Using the heat transpiration apparatus (control sample) of Comparative Example 7 prepared by filling with 65 g of calcium oxide, the effect on the houseplant and metal was visually evaluated by the following method.
(Prescription for heat evaporation of control specimen)
Phenotrin (insecticide) 1300mg
d · d-T-cyphenothrin (insecticide) 150mg
Pregelatinized starch (binder) 200mg
Azodicarbonamide (transpiration aid) Appropriate amount Total 10g

(Test method)
1. Specimen (1) Houseplants: Mini roses, Potos, Asiantum (2) Metal: Copper, Brass (Metal was cut into about 7cm square, polished with sandpaper in advance, immersed in toluene to remove oil)
2. Method Each houseplant and each metal were placed in a room (8 tatami room), and Example 5 or Comparative Example 7 was transpirated in the room and exposed for 2 hours. After exposure, the effects on each houseplant and each metal were evaluated. The test was performed twice.
Apart from these, each houseplant and each metal was placed in a room, and the one that was not transpirated was used as a control.
The results are shown in Table 4.

The evaluation of the specimen is as follows.
1) Houseplants ○: Withering is not observed.
X: Withering is observed.
2) Metal ○: Corrosion is not observed.
X: Corrosion is observed.

From the above test results, it is possible to effectively prevent withering and corrosion of foliage plants and metals by using the heat evaporation device according to the prior invention.
The above is the embodiment according to the prior invention of the present invention, and the embodiment according to the present invention will be described below.

[Example according to the present invention (Example 6)]
1. Active ingredient Etofenprox 3600mg
The active ingredient was filled in a soft blister and stored in a drug storage part of a container having the following specifications. The soft blister is a container 44 including a lower container 42 and an upper lid 40 as shown in FIG. The lower container 42 is made of PE and has a thickness of 80 μm, and the upper lid 40 has a layer structure of PP 20 μm and PE 40 μm.

2. Production of heat generating apparatus As shown in FIGS. 1 and 2, the bottom surface of the bottomed cylindrical container having a diameter of 65.3 mm and a height of 52 mm is substantially cylindrical with a diameter of 48 mm and a depth of 12 mm. In addition, a heat generation apparatus A was prepared which was provided with a medicine storage portion in which a gap forming convex portion having a diameter of 25 mm and a height of 2 mm was formed. The height from the bottom of the container to the bottom of the storage unit is 41 mm. Inside the heat generating apparatus A, 130 g of calcium oxide as a hydrothermal exothermic agent was entirely filled from the bottom to the side. A gap was formed by a leg portion at the bottom of the container, a bottom plate having a plurality of water passage portions (water passage holes) was disposed, and the water passage holes were closed with a non-woven sheet having water permeability.

  In Example 6 according to the present invention, ten holes having a diameter of 1 mm were formed on the inner peripheral surface of the storage portion above the convex portion. In the comparative example (Example 1-5 according to the above-described prior invention), no hole was formed in the storage portion.

3. Volatilization test method The above-mentioned active ingredient was filled in the container having the above shape to volatilize, and the volatilization component was trapped with silica gel using the collection device shown in FIG. The collection device of FIG. 7 is used for collection so that the heating transpiration device 110 placed in a container containing water is placed on a pedestal 111 and covers almost the entire upper and side portions of the heating transpiration device 110. The funnel 112 is covered, a metal collecting tube 114 filled with silica gel 113 is connected to the collecting funnel 112, and suction is performed from the other end of the collecting tube 114. The collection tube 114 is a cylinder having an inner diameter of 5 cm and a total length of 13 cm, filled with 110 g of silica gel 113, and absorbent cotton (8 × 17 cm size folded in two) 115, 115 of the filled portion of the silica gel 113. The top and bottom are blocked.

In the measurement, first, the heating transpiration device 110 is installed in the collection device, and the transpiration is heated and evaporated until the transpiration of the insecticidal body is completely completed, and the transpiration is sucked and adsorbed on the silica gel 113. Thereafter, the collecting funnel 112 and the collecting tube 114 are collected, the silica gel 113 and the absorbent cotton 115 are transferred to a beaker, and the inner surfaces of the collecting funnel 112 and the collecting tube 114 are sufficiently washed with acetone. At this time, all the cleaning liquid is collected. Next, add 1000 mL of acetone so that the silica gel 113 is sufficiently immersed in the beaker, extract with an ultrasonic cleaner for 50 minutes, filter by suction, and add an internal standard substance (di-2-ethylhexyl phthalate) for analysis. A sample was used. Then, the obtained extract was quantitatively analyzed by a gas chromatograph, and the volatilization rate, the residual rate, and the decomposition rate were obtained by the following equations. The above test was performed twice.
Volatilization rate (%) = (volatilization amount of drug / content of drug in carrier before volatilization) × 100
Residual rate (%) = (residual amount of drug / content of drug in carrier before volatilization) × 100
Decomposition rate (%) = 100− (volatilization rate + residual rate)

4). Results In Example 6 according to the present invention, 10 holes with a diameter of 1 mm were formed in the medicine container, and as shown in Table 5, 20-30 compared to the comparative example (Examples 1-5 according to the above-mentioned prior invention). % Increase in volatilization rate was observed, and a decrease in decomposition rate was observed. That is, the volatilization efficiency was good also in Example 1-5 according to the above-described prior invention, but since the decomposition rate of Example 6 according to the present invention is lower than that of the comparative example (Example 1-5 according to the above-described prior invention), the decomposition inhibition rate is low. It was even better and the volatilization rate was even better.

  From the said test result, it turned out that an effective volatilization rate and a decomposition suppression rate improve by forming a hole in a chemical | medical agent storage part. This is because water taken in from the bottom of the container becomes heated and pressurized gas (water vapor), and the gas (water vapor) is ejected with a strong force from the hole opened in the medicine container, so that the gas (water vapor) is carrier. Therefore, it is considered that the volatilization rate is improved as compared with a container having no holes. In addition, since the drug is carried by the gas (water vapor) ejected with a strong momentum, the time during which the drug is heated can be shortened, and the decomposition of the active ingredient can be reduced compared to a container having no holes, It is thought that the volatilization rate is improved.

  In the heating and transpiration device according to the present invention, since a hole that communicates the inside and the outside of the heat generating device is formed on the surface defining the medicine container, the heated and pressurized gas in the heat generating device Is ejected from the hole with a strong force, and an air flow is generated in the vicinity of the drug by the force. And the chemical | medical agent can be efficiently evaporated by this airflow. In addition, since the drug is volatilized in a short time due to the action of the air flow by the heated and pressurized gas in the heat generating device, the amount of the drug is thermally decomposed is reduced, and the drug can be volatilized more efficiently. it can. Moreover, since the chemical | medical agent does not contain a foaming agent, it hardly generates useless smoke.

DESCRIPTION OF SYMBOLS 1 Heating vaporizer 4 Hydrothermal exothermic agent 5 Bottom plate 6 Nonwoven fabric sheet 7 Leg part 8a, 8b, 8c Hole 10, 20, 30 Heating vaporizer 11 Container 12 Drug storage part 13 Water flow hole 15 Through-hole 16 Notch recessed part 17 Gap formation Recessed part 18 Gap forming convex part 19 Communicating part 21 Self-heating device 22 Outer container 23 Non-woven fabric sheet 24 Partition member 25 Lid member 26 Heat melting film 27 Heat transpiration agent 28 Hydrothermal agent 29 Container A, B, C Heat generator a, b, c, d, e Carrier W Water

Claims (8)

A heat transpiration apparatus comprising: a heat generating device provided on the upper surface with a medicine storage portion formed of a recess; and a medicine stored in the drug storage portion in a state in which a base material that evaporates by heating does not include a foaming agent. ,
A heating transpiration apparatus, wherein a hole that communicates the inside and the outside of the heat generating device is formed on a surface that defines the medicine container.   The heating and transpiration apparatus according to claim 1, wherein the heat generating device generates heat with a hydrothermal exothermic agent.   The heat evaporation apparatus according to claim 1, wherein the heat generating device generates heat with an air oxidation heat generating agent.   The heat transpiration apparatus according to claim 1, wherein the heat generating device generates heat when energized.   The heating and transpiration apparatus according to claim 1, wherein the medicine is stored in the medicine storage section while being held by a carrier.   The said chemical | medical agent is accommodated in the said chemical | medical agent storage part in a liquid or solid state, The heating transpiration apparatus in any one of Claims 1-4 characterized by the above-mentioned.   The heating according to any one of claims 1 to 6, wherein the depth of the medicine container is 20 mm or less, and the distance between the bottom of the heat generating device and the bottom of the medicine container is 60 mm or less. Transpiration equipment.   The heating transpiration apparatus according to any one of claims 1 to 7, wherein the hole is formed as necessary or necessary.

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