JP2010124723A - Thermal transpiration system and transpiration method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermal transpiration system that efficiently transpires a chemical and hardly emits a useless smoke and a transpiration method using the same. <P>SOLUTION: The thermal transpiration system 1 includes a heat generation apparatus A equipped with a carrier storage part 12 forming a recess in the top face and a carrier (a) supporting a chemical to transpire by heating. A recess or projection is arranged on at least one of the bottom face of the carrier storage part 12 and the lower side of the carrier (a) and the carrier (a) is equipped with an open hole passing in the thickness direction and stored in the carrier storage part in a state in which a connection part leading from the bottom face of the carrier storage part to the outside of the thermal transpiration system is formed. Alternatively, the carrier has an outer diameter smaller than the inner diameter of the carrier storage part and the carrier is stored in the carrier storage part in a state in which the outer peripheral surface of the carrier is separated from the side of carrier storage part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heat transpiration system and a transpiration method using the same, and more particularly to a heat transpiration system capable of efficiently evaporating a chemical agent and hardly generating wasteful smoke, and a transpiration method using the same. .

  2. Description of the Related Art Conventionally, in order to control pests existing indoors or in warehouses, a heat transpiration system capable of reaching a drug to every corner has been used.

  For example, Patent Document 1 proposes a heat transpiration system that evaporates an active ingredient using a heating means. This heating and transpiration system is used in the form of a self-heating device 21 shown as a schematic cross-sectional view as shown in FIG. 6, and the self-heating device 21 includes a bottomed cylindrical outer container 22 from the bottom. A hydrothermal exothermic agent 28 is accommodated over 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 2005-120028 A

  In the above-mentioned prior art heat transpiration system, the interior of the room is contaminated by ash such as decomposition products from organic foaming agents other than the active ingredients contained in the chemical for heat transpiration, and 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 system capable of efficiently evaporating a drug from a solid carrier holding the drug and generating almost no useless smoke, and a transpiration method using the same. To do.

That is, the present invention is achieved by the following (1) to (3).
(1) A heating and transpiration system comprising a heat generating device having a carrier accommodating portion formed with a recess on the upper surface and a carrier carrying a chemical that evaporates by heating, wherein the bottom surface of the carrier accommodating portion and the carrier A concave or convex portion is provided on at least one of the lower surfaces, and the carrier is provided with a through hole penetrating in the thickness direction to form a communicating portion that communicates from the bottom surface of the carrier accommodating portion to the outside of the heat transpiration system. It is stored in the storage unit, or the outer diameter is smaller than the inner diameter of the carrier storage unit, and the outer peripheral surface is stored in the carrier storage unit in a state of being separated from the side surface of the carrier storage unit. To heat transpiration system.
(2) The depth of the carrier accommodating portion is set so that the upper surface of the carrier is substantially equal to or lower than the upper surface of the carrier accommodating portion when the carrier is accommodated in the carrier accommodating portion. The heating and transpiration system according to (1), wherein heating is performed from both the side and the side.
(3) A method of evaporating a drug using the heating and evaporating system according to (1) or (2), wherein the carrier is heated by heat generated by the heat generating device, and evaporates from the lower surface of the carrier. A transpiration method characterized by evaporating the obtained medicine from the through hole of the carrier or a gap formed on the outer periphery of the carrier to the outside.

  In the heat transpiration system of the present invention, when the carrier accommodating portion and the carrier have a specific structure, when the carrier is accommodated in the carrier accommodating portion, a gap that communicates from the bottom of the carrier to the outside is formed. The drug can be efficiently released from below the carrier. Further, since the carrier is heated from both the lower surface side and the side surface side, the drug can be evaporated by heating more efficiently. Furthermore, according to the heating and transpiration system of the present invention, since there is almost no generation of smoke, there are no problems such as indoor pollution and death of foliage plants.

Hereinafter, the present invention will be described in more detail.
The heating and transpiration system of the present invention is composed of a heat generating device having a carrier housing part formed with a recess on the upper surface, and a carrier carrying a chemical that evaporates by heating. And a recessed part or a convex part is provided in at least one of the bottom face of the carrier storage part and the bottom face of the carrier, and the carrier is provided with a through-hole penetrating in the thickness direction, and communicates from the bottom face of the carrier storage part to the outside of the heat transpiration system. The carrier accommodating portion is stored in the carrier accommodating portion in a state where the communication portion is formed, or the outer diameter is configured to be smaller than the inner diameter of the carrier accommodating portion, and the outer peripheral surface is separated from the side surface of the carrier accommodating portion. It is something to be stored.

  The heat generating device has a heat generating means and a carrier accommodating portion in which a concave portion is formed. The heat generating means may be any structure as long as it has a function of generating heat and supplying heat necessary for the transpiration of the drug to the carrier storage portion on the upper surface, such as 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 carrier housing part is performed on both constituent materials, for example, materials such as metal, ceramics, glass, paper, and heat-resistant plastic (which may be the same or different), or both of these materials It carries out via gas, such as air, nitrogen, and oxygen, with respect to a carrier storage part. 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 carrier 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 carrier storage portion 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 carrier storage portion is preferably concentric cylindrical. 10-90 mm is preferable and, as for the internal diameter of this support | carrier accommodating part, 20-80 mm is more preferable. The depth of the carrier accommodating portion is configured to be substantially equal to or higher than the thickness of the carrier described later, and when the carrier is accommodated in the carrier accommodating portion, the upper surface of the carrier is substantially the same as the upper surface of the carrier accommodating portion. It should be equal or lower. The depth of the carrier storage portion is not particularly limited, but is preferably about 5 to 25 mm, and more preferably 5 to 20 mm.

  Moreover, although the bottom face of the carrier accommodating 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 accommodated in the carrier accommodating portion, the lower surface of the carrier has a non-contact surface that does not contact the carrier accommodating portion, and a gap is formed below the carrier. When providing a recessed part or a convex part in the bottom face of a carrier storage part, 5 to 40% of the depth or height of the depth of a carrier storage part is preferable, and 10 to 25% is more preferable. Further, the diameter of the concave portion or the convex portion is preferably 20 to 95% and more preferably 25 to 90% of the diameter of the circle when the carrier storage portion is cylindrical. That is, when the inner diameter of the carrier storage portion is 20 to 80 mm, the concave or convex portion provided on the bottom surface of the carrier storage portion preferably has a diameter of 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 heating transpiration system, 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 carrier accommodating portion. It conducts to the carrier.

The carrier accommodated in the carrier 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 to these 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 having an outer shape that is substantially equal to or smaller than the inner diameter of the carrier housing portion. When the carrier storage portion 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 carrier storage portion 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. In addition, the thickness of the carrier is set to be substantially equal to or smaller than the depth of the carrier accommodating portion so that the upper surface of the carrier does not protrude from the upper surface of the carrier accommodating portion when the carrier is accommodated in the carrier accommodating portion. 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 (lower surface) of the carrier with the bottom surface of the carrier storage portion may be provided with a concave portion or a convex portion as desired. By providing a concave or convex portion, when the carrier is accommodated in the carrier accommodating portion, the lower surface of the carrier has a non-contact surface that does not contact the bottom surface of the carrier accommodating 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 carrier accommodating portion, 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 carrier storage portion, when the carrier is stored in the carrier storage portion, the outer peripheral surface is separated from the side surface of the carrier storage portion, 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 carrier housing portion. That is, when the inner diameter of the carrier storage portion 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 carrier housing portion 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 carrier storage portion, the side surface of the carrier storage portion and the top surface of the carrier formed when the carrier is stored in the carrier 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.

  When an insecticide is used as a drug, the intended one is used without any particular limitation.For example, natural pyrethrin, pyrethrin, bifenthrin, allethrin, phthalthrin, resmethrin, framethrin, permethrin, phenothrin, cyphenothrin, praretrin, trans 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 plecocene, molting hormone agents such as ecdysone; fitton tide, mint oil, orange oil, cinnamon oil, benzyl alcohol, clove oil, 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, chlorhexidine hydrochloride; lauryl methacrylate, geranyl crotonate, catechin, etc. Deodorants; essential oils such as rose oil, lavender oil, mint oil; and flavors such as pinene, limonene, linalool, menthol, eugenol, and the like.

  In the heating and transpiration system of the present invention, as described above, a recess or a projection is provided on at least one of the bottom surface of the carrier storage portion and the bottom surface of the carrier, and further, a through hole is provided in the carrier, or the outer diameter of the carrier is changed to the carrier. By setting the diameter smaller than the inner diameter of the storage portion, a space portion is formed below the stored carrier and a communication portion communicating with the space portion is formed. With this configuration, the drug carried on the carrier evaporates in the space formed below the carrier, and is released to the outside through the communicating portion.

  In the present invention, the upper surface of the carrier housing part may be open or may be closed by a hot melt film having a vent hole.

  And the heat | fever transpiration | evaporation system of this invention can be used for purposes, such as pest control and further sterilization, deodorization, and fragrance.

  Hereinafter, embodiments of the heat transpiration system 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 system according to a first embodiment of the present invention, and FIG. 2 is a sectional view thereof. The heating and transpiration system 1 according to the first embodiment includes a heat generation apparatus A including a bottomed cylindrical container 11 and a carrier storage part 12 having a recess provided on the upper surface of the container 11, and the carrier storage 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 carrier storage portion 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 the substantially center of the bottom surface of the carrier accommodating 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.

  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 carrier 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 cylindrical plate member having a diameter smaller than the inner diameter of the carrier accommodating portion 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 carrier 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 carrier accommodating portion 12, so that the upper surface of the carrier a protrudes from the upper surface of the carrier accommodating portion 12. Absent.

  In 1st Embodiment, in use, the heating transpiration system 1 is put into the 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).

(Second Embodiment)
FIG. 3 is a cross-sectional view of the heating and transpiration system of 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.
In the heating and transpiration system 10 of the second embodiment, the bottom surface of the carrier accommodating portion 12 of the heat generating apparatus B is formed flat, and the carrier e is formed with a diameter substantially equal to the inner diameter of the carrier accommodating portion 12 and is cut to substantially the 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 support | carrier accommodating part 12 which comprises the heat generating apparatus B is a substantially cylindrical recessed part indented toward the inside from the upper surface of the container 11 which comprises the heat generating apparatus B, The bottom face is It is constructed flat. The depth of the carrier accommodating portion 12 is about 5 to 25 mm, and the inner diameter is about 20 to 80 mm.

  As shown in FIG. 3, the carrier e is a substantially cylindrical plate member having a diameter substantially equal to the inner diameter of the carrier accommodating portion 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 carrier accommodating portion 12. The lower surface of the carrier e that comes into contact with the bottom surface of the carrier storage portion 12 is cut out in a substantially cylindrical shape at the substantially center 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 carrier storage portion 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 (such as the room).

(Third embodiment)
FIG. 4 is a cross-sectional view of the heating and transpiration system of 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 system 20 of the third embodiment is such that a gap forming recess 17 is formed on the bottom surface of the carrier accommodating portion 12 of the heat generating device 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 carrier accommodating part 12 which comprises the heat generating apparatus C is a substantially cylindrical recessed part indented toward the inside from the upper surface of the container 11 which comprises the heat generating apparatus C, and the bottom face A substantially cylindrical gap forming recess 17 is formed in the substantially center. The depth of the carrier accommodating portion 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.

  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 carrier accommodating portion 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 carrier storage portion 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 carrier 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).

(Fourth embodiment)
FIG. 5 is a cross-sectional view of the heating and transpiration system of 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 system 30 of the fourth embodiment, the gap forming convex portion 18 is formed on the bottom surface of the carrier accommodating portion 12 of the heat generating apparatus A, and the carrier d is formed with a diameter smaller than the inner diameter of the carrier accommodating portion 12. The through-hole 15 is formed in the approximate center.

  In 4th Embodiment, the support | carrier accommodating 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 carrier accommodating portion 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.

  As shown in FIG. 5, the carrier d is a substantially columnar plate member having a diameter smaller than the inner diameter of the carrier accommodating portion 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 carrier accommodating portion 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 carrier 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).

  Hereinafter, although the heating transpiration system of this invention and the transpiration method using the same are demonstrated in detail according to an Example and a comparative example, this invention is not restrict | limited at all by these examples.

(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 were 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 system was produced according to the combination of 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 system 1 shown in FIGS. 1 and 2, Example 2 corresponds to the heating and transpiration system 10 shown in FIG. 3, and Example 3 corresponds to the heating and transpiration system 20 shown in FIG. In addition, Example 4 corresponds to the heating transpiration system 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 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 evaporate an active ingredient efficiently.

[Test Example 2: Example 5, Comparative Example 6]
As Example 5, a heat evaporation system composed of a combination of the heat generating apparatus A and the carrier b similar to that of Example 1 was used, and 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, a heating and transpiration system comprising a combination of the heat generator B and the carrier a similar to that of Comparative Example 2 was used, and the carrier a had the same amount of phenothrin and d · d-T-si as in Example 5. Impregnated with phenothrin. The insecticidal effect was examined using the heat transpiration system of Example 5 and Comparative Example 6.

(Test method)
1. Open conditions 10 adults / places of black cockroach females / place were placed diagonally at the two corners of the floor of the room under a 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 30cm x 30cm x 30cm box 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 in Table 3, the KT ₅₀ value of the heating transpiration system of Example 5 was about 15 minutes earlier than the heating transpiration system of Comparative Example 6 under the open conditions. In addition, in the slit conditions, the KT ₅₀ value of the heating transpiration system of Example 5 was significantly faster than the KT ₅₀ value of the heating transpiration system of Comparative Example 6, and the mortality after 48 hours was also found in the Example. The 5 heat transpiration system 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 system 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 transpiration system (test sample) of Example 5 and a heating transpiration agent 10 g having the following prescription are placed in the partition member 24 of the self-heating device 21 shown in FIG. Using the heat transpiration system (control sample) of Comparative Example 7 prepared by filling with 65 g of calcium oxide, the influence 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) Ornamental plants: Mini roses, Potos, Asiantum (2) Metals: Copper, brass (Metal was cut to about 7 cm 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, by using the heat transpiration system of the present invention, it is possible to effectively prevent the foliage plants and metals from withering and corroding.

  The heating and transpiration system according to the present invention can efficiently evaporate a medicine and hardly generates wasteful smoke. Therefore, it is suitable for heat evaporation of insecticides, deodorants and fragrances.

1 is a perspective view of a heating and transpiration system according to a first embodiment of the present invention. It is a section schematic diagram for explaining the structure of the heating transpiration system concerning a 1st embodiment of the present invention. It is a section schematic diagram for explaining the structure of the heating transpiration system concerning a 2nd embodiment of the present invention. It is a section schematic diagram for explaining the structure of the heating transpiration system concerning a 3rd embodiment of the present invention. It is a section schematic diagram for explaining the structure of the heating transpiration system concerning a 4th embodiment of the present invention. It is a cross-sectional schematic for demonstrating the structure of the preparation for heat evaporation of a prior art. It is a schematic diagram which shows the structure of the collection apparatus used in the Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating transpiration system 4 Hydrothermal exothermic agent 5 Bottom plate 6 Nonwoven fabric sheet 7 Leg part 10, 20, 30 Heating transpiration system 11 Container 12 Carrier storage part 13 Water flow hole 15 Through-hole 16 Notch recessed part 17 Gap formation recessed part 18 For gap formation Convex portion 19 Communicating portion 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 generators a, b, c, d, e carrier W water

Claims (3)

A heat transpiration system comprising a heat generating device provided on the upper surface with a carrier accommodating portion in which a recess is formed, and a carrier carrying a chemical that transpirations by heating,
Providing a concave or convex portion on at least one of the bottom surface of the carrier storage portion and the bottom surface of the carrier,
The carrier is accommodated in the carrier accommodating portion in a state in which a through-hole penetrating in the thickness direction is provided and a communication portion communicating from the bottom surface of the carrier accommodating portion to the outside of the heating transpiration system is formed, or the outer diameter is A heating transpiration system characterized in that it is configured to be smaller than the inner diameter of the carrier accommodating portion and is accommodated in the carrier accommodating portion in a state in which the outer peripheral surface is separated from the side surface of the carrier accommodating portion.   The depth of the carrier accommodating portion is set so that the upper surface of the carrier is substantially equal to or lower than the upper surface of the carrier accommodating portion when the carrier is accommodated in the carrier accommodating portion. Heating transpiration system according to claim 1, characterized in that it is heated from both sides. A method for transpiration of a drug using the heat transpiration system according to claim 1 or 2,
A transpiration method characterized in that the carrier is heated by the heat generated by the heat generating device, and the medicine evaporated from the lower surface of the carrier is evaporated to the outside from a gap formed in the through hole of the carrier or the outer periphery of the carrier. .

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