JP2012132634A - Air curtain device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress entry of insects, which cannot be prevented by a conventional curtain device.SOLUTION: The air curtain device 1 for forming an air curtain at the opening of a building includes: a blower 10 for sending the air; a blowing part 23 for forming the air curtain by blowing the air sent from the blower 10 to the direction intersecting an entering/exiting direction to the opening part; and a chemical supply part 40 for mixing a chemical with the air for forming the air curtain.

Description

  The present invention relates to an air curtain device provided at an entrance of a building such as a factory.

  Conventionally, an air curtain device is provided at the entrance of a building such as a factory to prevent insects from entering the factory (see, for example, Patent Documents 1 and 2). The air curtain devices of Patent Documents 1 and 2 have a structure in which air is sent so as to block the entrance and exit, and a curtain is formed by the flow of air to suppress the invasion of insects.

JP 2006-57928 A JP 2006-22993 A

  However, even if an air curtain device is provided, there is a risk that insects attached to people or luggage may enter the building together with people or luggage. In addition to sticking to people and luggage, insects, for example, are flying insects that are trapped near the entrance of the outer wall of the building, and the person's entry and exit will stimulate and invade with people Sometimes. In addition, worms walking outside the building may be similarly stimulated and enter the building from the entrance.

  Further, there is a demand not only for suppressing these insect damages but also for suppressing the invasion of bacteria and allergens into the building.

  Furthermore, there is a demand for effective deodorization and aroma to improve the comfort in the building.

  The present invention has been made in view of such points, and the object of the present invention is to suppress the invasion of insects that could not be prevented by conventional curtain devices, or the invasion of bacteria and allergens into buildings. Or adding a new function to the conventional air curtain device that can effectively deodorize and smell.

  In order to achieve the above object, in the present invention, an agent having an insecticidal, repellent, or insecticidal action on the air forming the air curtain, a deodorant, a disinfectant, a bactericide, an fragrance, an allergen aggregation remover, A quencher was mixed.

  1st invention is an air curtain apparatus for forming an air curtain in the opening part of a building, The air blower which sends air, and the air sent from the said air blower in the direction which cross | intersects the exit / entry direction to the said opening part It is characterized by comprising a blowing part that blows out to form an air curtain, and a medicine supply part that mixes the medicine into the air for forming the air curtain.

  According to this configuration, the air blown out from the blowout portion exists for a while in the vicinity of the opening of the building after the air curtain is formed. For example, when an insecticide is mixed in the air forming the air curtain, the insecticide is present in the vicinity of the opening of the building. Helminths walking outside the building opening are killed. Thereby, the invasion of insects is suppressed.

  In addition, when repellents and insect repellents are mixed in the air forming the air curtain, for example, repellents and repellents exist near the opening of the building, so flying insects and worms The behavior to escape from the opening of the building is taken, and the invasion of insects is suppressed.

  Furthermore, insects and the like contained in the air forming the air curtain are directly hit against insects trying to enter the building together with people and luggage. As a result, it is possible to surely kill insects or to ensure that insects take repellent behavior.

  In addition, when the air forming the air curtain is mixed with, for example, a deodorant, a disinfectant, a bactericide, a fragrance, an allergen aggregation remover, and a deactivator, the deodorant effect and the disinfectant effect, respectively. In addition, a bactericidal effect and an allergy suppressing effect can be obtained.

  That is, it becomes possible to provide a new function that is not available in the conventional air curtain device.

  The second invention is characterized in that, in the first invention, a suction part for sucking air for forming an air curtain is provided, and the medicine supply part is arranged in the vicinity of the suction part.

  According to this configuration, since the medicine supply unit is disposed on the upstream side of the air curtain device in the air flow direction, the medicine and the air are well mixed while flowing downstream. And since a chemical | medical agent will blow off from a blowing part in the state mixed with air substantially uniformly, it becomes possible to prevent that effects, such as an insecticide, change with blowing parts.

  According to a third aspect, in the first or second aspect, the medicine supply unit includes a container that stores the liquid medicine and a liquid absorbing member that sucks out the medicine in the container, and the liquid absorbing member is an air curtain. It is arrange | positioned in the flow of the air for forming.

  According to this configuration, the medicine in the container is sucked out by the liquid absorbing member, and the sucked out medicine is mixed with air. Then, when the medicine in the container runs out, effects such as insecticide can be continuously obtained by replenishing the medicine.

  According to a fourth aspect of the present invention, in the first or second aspect, the medicine supply unit includes a container that stores the liquid medicine, and a suction pipe that communicates with the container and sucks the medicine, and the medicine in the suction pipe The downstream end in the flow direction is arranged in an air flow for forming an air curtain.

  According to this configuration, since the downstream end of the suction pipe is disposed in the air flow, a negative pressure acts on the downstream end of the suction pipe. The drug in the container is sucked out by this negative pressure, and the sucked-out drug is mixed with air. Then, when the medicine in the container runs out, effects such as insecticide can be continuously obtained by replenishing the medicine.

  According to a fifth aspect of the present invention, in the first or second aspect of the present invention, the air passage includes an air passage that opens to face the main flow of air for forming an air curtain and extends to communicate with the atmosphere. A supply unit is provided.

  According to this configuration, since the air passage opens so as to face the main flow of air forming the air curtain, a negative pressure acts in the air passage. The air flows into the air passage due to this negative pressure. The infused atmosphere is mixed with a medicine by a medicine supply unit in the air passage. And the chemical | medical agent in an air passage mixes with the mainstream of the air which forms an air curtain.

  According to a sixth invention, in any one of the first to fifth aspects, the medicine includes at least one of an insecticide, an insect repellent, an insect repellent, a deodorant, a disinfectant, a disinfectant, and an fragrance. Is included.

  According to this configuration, effects such as a deodorizing effect, a sterilizing effect, and a sterilizing effect can be obtained by the air for forming the air curtain.

  According to the first invention, since the medicine is mixed in the air forming the air curtain, new functions not provided in the conventional air curtain device are provided, such as the invasion of insects that could not be prevented by the conventional air curtain. can do.

  According to the second aspect of the invention, since the medicine supply part is arranged in the vicinity of the suction part, an air curtain can be formed by air in which the medicine is mixed substantially uniformly. Thereby, a still higher effect can be acquired.

  According to the third aspect of the invention, since the liquid absorbing member that sucks out the medicine in the container is disposed in the air flow, the medicine in the container can be reliably mixed with the air. And an effect, such as an insecticide, can be acquired continuously by replenishing a chemical | medical agent to a container.

  According to 4th invention, a chemical | medical agent can be reliably mixed with air using the negative pressure by the air which forms an air curtain.

  According to the fifth aspect of the invention, since the medicine supply unit is provided in the air passage that opens so as to face the main flow of air forming the air curtain, the air curtain is utilized by utilizing the negative pressure that acts on the medicine in the air passage. Can be mixed with the air forming.

  According to the sixth invention, the medicine includes at least one of insecticide, insect repellent, insect repellent, deodorant, disinfectant, bactericidal agent, allergen aggregation remover, and quencher. Therefore, not only the insect invasion can be suppressed, but also a deodorizing effect, a sterilizing effect, a bactericidal effect, and an allergy suppressing effect can be obtained.

It is an external appearance perspective view of the building in which the air curtain apparatus concerning Embodiment 1 was installed. 1 is a longitudinal sectional view of an air curtain device according to Embodiment 1. FIG. FIG. 2 is a view corresponding to FIG. 1 when the setting position of the air curtain device is changed. FIG. 3 is a diagram corresponding to FIG. 2 according to a first modification of the first embodiment. FIG. 3 is a diagram corresponding to FIG. 2 according to a second modification of the first embodiment. FIG. 6 is a view corresponding to FIG. 2 according to a third modification of the first embodiment. FIG. 6 is a view corresponding to FIG. 2 according to a fourth modification of the first embodiment. FIG. 9 is a view corresponding to FIG. 2 according to a fifth modification of the first embodiment. FIG. 3 is a diagram corresponding to FIG. 2 according to the second embodiment. FIG. 9 is a view corresponding to FIG. 2 according to a modification of the second embodiment. It is sectional drawing of the air curtain apparatus concerning Embodiment 3. FIG. FIG. 12 is a view corresponding to FIG. 11 according to a first modification of the third embodiment. FIG. 12 is a view corresponding to FIG. 11 according to a second modification of the third embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

(Embodiment 1)
FIG. 1 shows a building 100 in which an air curtain device 1 according to Embodiment 1 of the present invention is installed. Examples of the building 100 include, but are not limited to, a factory, an office, and various work places. Reference numeral 101 denotes an entrance (opening) of the building 100.

  The air curtain device 1 is attached to the upper part of the entrance / exit 101 on the outer wall of the building 100 and forms an air curtain so as to block the entrance / exit 101 by vigorously releasing air downward from the upper part of the entrance / exit 101. It is configured.

  As shown in FIG. 2, the air curtain device 1 includes a blower 10 and a casing 20 that houses the blower 10. The casing 20 has a substantially rectangular parallelepiped shape extending along the upper part of the doorway 101. A suction port (suction part) 21 is formed in the front wall part 20 a of the casing 20. A suction-side lattice member 22 for preventing entry of foreign matter is fitted into the suction port 21.

  A blowout port (blowout portion) 23 is formed in the lower wall portion 20 b of the casing 20. The outlet 23 is formed so as to extend from the left end to the right end of the entrance 101 of the building 100. A blowout side lattice member 24 is fitted into the blowout opening 23.

  The blower 10 includes a centrifugal fan (sirocco fan) 11, a scroll casing 12 that houses the fan 11, and a fan drive motor (not shown) that rotationally drives the fan 11. The air inlet 12 a of the scroll casing 12 opens into the casing 20, and air sucked from the air inlet 21 of the casing 20 flows into the scroll casing 12.

  The structure of the blower 10 is not limited to that described above, and may be a blower using an axial flow fan, a cross flow fan, or the like.

  The discharge port 12b of the scroll casing 12 is opened in the casing 20 so as to be directly above the blowout port 23 and opposed to the blowout port 23, and the air discharged from the discharge port 12b is blown out from the casing 20. 23 is blown out.

  The capacity of the blower 10 is such that the amount of air blown from the outlet 23 is sufficient to form an air curtain from the upper part to the lower part of the entrance / exit 101, and the number of the blowers 10 is A sufficient number is set to form the.

  The blower 10 is controlled by a control unit (not shown). In addition to the ON / OFF switch for switching the blower 10 between the operating state and the stopped state, the control unit is also provided with a switch for adjusting the air volume.

  In the casing 20, a substantially plate-shaped drug impregnated body (drug supply unit) 40 is provided between the discharge port 12 b of the scroll casing 12 and the blowout port 23 of the casing 20. The drug impregnated body 40 is formed by impregnating a volatile drug into a base material having air permeability made of, for example, a nonwoven fabric, a foam material having continuous air holes, a honeycomb-shaped member, or the like.

  Examples of the drug include at least one of an insecticide, an insect repellent, and an insect repellent. As these insecticides, repellents, and insect repellents, those conventionally used in ordinary homes and offices can be used.

  Insecticides include, for example, allethrin, dl · d-T80-alleslin, dl · d-T-alleslin, d · d-T-alleslin, phthalthrin, dl · d-T80-phthalthrin, resmethrin, dl · d-T80 -Resmethrin, framethrin, permethrin, phenothrin, fenvalerate, cypermethrin, ciphenothrin, imiprothrin, etofenprox, tefluthrin, fenpropatoline, fenfluthrin, transfluthrin, empentrin, teraleslin, methfluthrin, praretrin, dd Pyrethroid compounds such as T80-prarethrin, diazinon, DDVP, fenitrothion, phenithione, temefos, phoxime, acephate, pyridafenthion, etrimphos, malathion, prothio Scan, propetamphos, pyraclofos, chlorpyrifos, organophosphorus compounds such as chlorpyrifos-methyl, NAC, Penchiokarubu include carbamate compounds such as propoxur.

  Examples of the repellent include N, N-diethyl-m-toluamide, dimethyl phthalate, dibutyl phthalate, 2-ethyl-1.3-hexanediol, di-n-propyl isocincomero in addition to the insecticides described above. , P-dichlorobenzene, di-n-butyl succinate, caran-3,4 diol, 1-methylpropyl 2- (2-hydroxyethyl) -1-piperidinecarboxylate, N, N-diethyl-m-toluamide , Di-n-butyl succinate, di-n-propylisocincomellonate, p-menthen-3,8 diol, eucalybitol, guanidine and the like.

  Further, the drug may contain a pest growth inhibitor. Examples of the pest growth inhibitor include chitin synthesis inhibitors such as diflubenzuron and buprofezin, juvenile hormone-like substances such as pyriproxyfen and hydroprene. Is mentioned.

  The drug may contain at least one of a bactericidal agent and a bactericidal agent. Examples of the bactericidal agent and the bactericidal agent include cetylpyridinium chloride, chlorhexidine, benzethonium chloride, decalinium chloride, triclosan, parachlorometa. Xylenol, Orthophenylphenol, Trichlorocarbanilide, Isopropylmethylphenol, Grapefruit seed extract, Polylysine, Egg white lysozyme, Glycerin fatty acid ester, Tea extract, Protamine, Bamboo extract, Aeginoki extract, Kawara mugwort extract, Hinokithiol, Honoki extract Product, forsythia extract, pectin degradation product and the like.

  In addition, the drug may contain a fragrance, and as the fragrance, for example, various natural and artificial fragrances can be used, and botanical and animal natural roses, cloves, lemon, cardamom, sandalwood, Plant fragrances such as black moji and cinnamon, animal fragrances such as musk, civet, castorium and ambergris, isolated fragrances such as lemongrass and peppermint, and hydrocarbons, alcohols, phenols, aldehydes, ketones, lactones, oxides, esters, etc. Artificial fragrance etc. are mentioned.

  The chemical may contain a deodorant. Examples of the deodorant include aromatic deodorants such as citral, cinnamic aldehyde, camphor and bornyl acetate, turpentine oil, eucalyptus oil and sandalwood oil. Examples include neutralizing deodorants of plant essential oils, chemical reaction deodorants such as benzaldehyde, cinnamic aldehyde, dimethyl maleate, and fumaric acid esters, tea leaves, green tea, mate tea, cacao, parsley, and Lamiaceae plants. It is done.

  In addition, the agent may contain an allergen aggregation remover that inactivates or inactivates causative substances that cause allergies such as pollen and mites, and a deactivated substance. Examples include hectorite, benzalkonium chloride, polyphenol compounds, ethanol, titanium oxide, sodium polyacrylate, and the like.

  The case where the curtain apparatus 1 comprised as mentioned above is used is demonstrated. When the fan 11 is rotated by the operation of the ON / OFF switch, negative pressure is generated at the air inlet 12a of the scroll casing 12, whereby air is sucked from the air inlet 21 of the casing 20, and the air in the casing 20 is It is sucked into the scroll casing 12 from the mouth 12a.

  The air sucked into the scroll casing 12 is discharged from the discharge port 12b. The air discharged from the discharge port 12 b hits the drug-impregnated body 40 and passes through the drug-impregnated body 40. In the process in which the air passes through the drug-impregnated body 40, the drug impregnated in the drug-impregnated body 40 is mixed with the air. The air mixed with this medicine blows out from the outlet 23 of the casing 20 and forms an air curtain at the entrance 101 of the building 100.

  After that, the air forming the air curtain will be present in the vicinity of the entrance / exit 101 of the building 100 for a while. Since the insecticide is mixed with the air forming the air curtain, the insecticide is present in the vicinity of the entrance / exit 101 of the building 100. As a result, flying insects that are outside the doorway 101 of the building 100 and worms that are walking outside the doorway 101 of the building 100 are killed. Therefore, it is possible to suppress insects from entering the building 100.

  Further, since repellents and insect repellents are mixed in the air forming the air curtain, repellents and repellents are also present in the vicinity of the entrance / exit 101 of the building 100. As a result, flying insects and worms take an action of escaping from the entrance / exit 101 of the building 100, and the invasion of insects is suppressed.

  Furthermore, insects and the like contained in the air forming the air curtain are directly hit against insects trying to enter the building together with people and luggage. As a result, it is possible to surely kill insects or to ensure that insects take repellent behavior.

  The flying insects are, for example, flies, mosquitoes, chironomids, fly flies, and moths, and the worms are, for example, cockroaches, ants, and centipedes.

  Therefore, according to the first embodiment, since insecticide, insect repellent, and insect repellent are mixed in the air forming the air curtain, the density of insects near the entrance / exit 101 is reduced, and the conventional air curtain can prevent it. It is possible to provide a new function that the conventional air curtain device does not have, such as the more effective suppression of insect invasion.

  Moreover, as a chemical | medical agent, by using at least 1 among a deodorizer, a disinfectant, a disinfectant, an fragrance | flavor, an allergen aggregation removal agent, and a deactivation agent, a deodorizing effect, a disinfection effect, a disinfection effect, It is possible to obtain completely new functions such as an aroma effect and an allergy-inhibiting effect that have not been available in conventional air curtain devices.

  In addition, a chemical | medical agent may contain multiple types among an insecticide, an insect repellent, an insect repellent, an allergen aggregation removal agent, and a quenching agent. The drug does not include insecticides, insect repellents, and insect repellents, and includes at least one of deodorant, disinfectant, bactericide, fragrance, allergen aggregation remover, and quencher. There may be.

  In addition, as shown in FIG. 3, the air curtain device 1 may be installed at the left and right side edges of the entrance / exit 101 of the building 100.

  Further, as in Modification 1 shown in FIG. 4, the drug impregnated body 40 may be provided in the casing 20 on the upstream side in the air flow direction, that is, in the vicinity of the suction port 21. The drug-impregnated body 40 of the first modification is arranged so as to cross the air flow in the casing 20. An air filter 41 is disposed on the upstream side of the air flow with respect to the drug-impregnated body 40 in the casing 20. By disposing the air filter 41 on the upstream side of the drug-impregnated body 40, dust and the like can be prevented from adhering to the drug-impregnated body 40, and the volatilization performance of the drug can be maintained for a long period of time.

  Further, as in Modification 2 shown in FIG. 5, the drug-impregnated body 42 may be formed in an annular shape. The drug-impregnated body 42 of Modification 2 is formed so as to extend along the inner surface of the casing 20 and is fixed to the inner surface. The air flows through the drug impregnated body 42, and the drug mixes with the air during the flow. The shape of the drug-impregnated body 42 may be an annular shape, or may be an annular shape with a polygonal cross section. Moreover, the shape where the circumferential direction part of the chemical | medical agent impregnation body 42 was notched may be sufficient.

  Further, as in Modification 3 shown in FIG. 6, the drug-impregnated body 42 may be formed in a rod shape. The drug-impregnated body 42 of Modification 3 extends along the inner surface of the casing 20 and is fixed to the inner surface.

  Moreover, the form which attaches the chemical | medical agent impregnation body 42 directly to the inlet 12a or the discharge port 12b of the air blower 10 may be sufficient.

  By arrange | positioning the chemical | medical agent impregnation body 42 to the airflow upstream like the said modifications 1-3, it mixes well, while a chemical | medical agent and air flow downstream. And since it will blow out from the blower outlet 23 of the casing 20 in the state in which the chemical | medical agent was mixed with air substantially uniformly, it becomes possible to prevent that effects, such as an insecticide, change with blowout parts.

  Further, as in Modification 4 shown in FIG. 7, the drug supply unit 43 includes a container 43 a that stores a liquid drug, and a liquid absorption core 43 b (liquid absorption member) that sucks out the drug in the container 43 a. It is good. The container 43a is made of a member having translucency, for example. The container 43 a is disposed in the casing 20 on the downstream side in the air flow direction, that is, between the discharge port 12 b of the blower 10 and the outlet 23 of the casing 20. The container 43a contains a medicine similar to the medicine impregnated in the medicine impregnated body 40. The liquid absorption core 43b is made of a member that can cause a capillary phenomenon, such as a nonwoven fabric. One end side of the liquid absorbent wick 43b is arranged so as to contact the medicine in the container 43a, and the other end side protrudes outside the container 43a and is arranged between the discharge port 12b of the blower 10 and the outlet port 23 of the casing 20. Has been. The medicine in the container 43a is sucked out by the liquid absorbent core 43b. And when the air discharged from the discharge port 12b of the air blower 10 hits the liquid absorption core 43b, the chemical | medical agent of the liquid absorption core 43b mixes with air. When the medicine in the container 43a runs out, the medicine can be replenished. The medicine (liquid) may be replenished directly to the container 43a, or the container 43a that has run out of medicine may be replaced with another filled container 43a. The container 43a may be provided outside the casing 20, so that the medicine can be replenished and the container 43a can be replaced more easily.

  In the fourth modification, the liquid absorption core 43b for sucking out the medicine in the container 43a is arranged in the air flow, so that the medicine in the container 43a can be reliably mixed with the air. And effects, such as an insecticide, can be acquired continuously by replenishing the chemical | medical agent to the container 43a.

  Further, since the remaining amount of the medicine can be grasped from the outside by providing the container 43a with translucency, it becomes possible to easily determine the replacement time of the container 43a and the time when the medicine is replenished.

  Further, as in Modification 5 shown in FIG. 8, the medicine supply unit 44 includes a container 44a for storing a liquid medicine and a suction tube 44b for communicating with the inside of the container 44a to suck the medicine. It is good. The suction pipe 44b is a so-called orifice pipe. Since the downstream end of the suction pipe 44b is disposed in the air flow between the discharge port 12b of the blower 10 and the outlet 23 of the casing 20, a negative pressure acts on the downstream end of the suction pipe 44b. . Due to this negative pressure, the medicine in the container 44a is sucked out, and the sucked-out medicine is mixed with air. When the medicine in the container 44a runs out, effects such as insecticide can be obtained continuously by replenishing the medicine. In addition, the method for replenishing medicine is the same as that in Modification 4.

(Embodiment 2)
FIG. 9 is a cross-sectional view of the air curtain device 1 according to the second embodiment of the present invention. The air curtain device 1 of the second embodiment is different from that of the first embodiment only in the method of supplying the medicine and the other parts are the same. Therefore, the parts different from the first embodiment will be described in detail below. To do.

  That is, in the second embodiment, the drug impregnated body 46 is provided outside the casing 20. A passage forming member 45 is provided in the vicinity of the blowout port 23 of the lower wall portion 20b of the casing 20 so as to protrude downward (air blowing direction for forming an air curtain). The passage forming member 45 is formed with an air passage 45a that opens so as to face the main flow of air for forming an air curtain and extends to communicate with the atmosphere. The air passage 45a is inclined so that the side facing the main flow of air for forming the air curtain is the downstream end, the opposite end is the upstream end, and the downstream end is located below the upstream end. is doing.

  A drug impregnated body 46 is disposed in the air passage 45a. The drug impregnated body 46 is configured in the same manner as the drug impregnated body 40 of the first embodiment.

  When air blows out from the blow-out port 23 of the casing 20, the downstream end of the air passage 45a opens so as to face the main flow of the air, so that negative pressure acts in the air passage 45a. Due to this negative pressure, the atmosphere flows into the air passage 45a from the upstream end. The air that has flowed in passes through the drug-impregnated body 46 in the air passage 45a, whereby the drug is mixed into the atmosphere. And since the chemical | medical agent in the air path 45a mixes with the main flow of the air which forms an air curtain, a chemical | medical agent is mixed with the air which forms an air curtain.

  As described above, according to the air curtain device 1 according to the second embodiment, as in the first embodiment, the air forming the air curtain is mixed with the insecticide, the insect repellent, and the insect repellent. Insects that could not be prevented with conventional air curtains can be suppressed.

  Note that, as in the modification shown in FIG. 10, a medicine container (medicine supply part) 48 may be formed in the passage forming member 45. In the medicine container 48, the same medicine as the medicine impregnated in the medicine impregnated body 40 of Embodiment 1 is contained in liquid form. The medicine container 48 opens toward the air passage 45a. Therefore, when air flows through the air passage 45a, the medicine is mixed with the air. In this modification, the medicine container 48 may be provided with a window for displaying the remaining amount of medicine.

(Embodiment 3)
FIG. 11 is a cross-sectional view of an air curtain device 1 according to the third embodiment of the present invention. The air curtain device 1 of the third embodiment is different from that of the first embodiment in the air flow and the medicine supply method. Hereinafter, a different part from Embodiment 1 is demonstrated in detail.

  An intermediate duct 50 and an air guide duct 51 are provided in the casing 20. The air guide duct 51 extends along the longitudinal direction of the outlet 23 of the casing 20. The intermediate duct 50 is for connecting the blower 10 and the air guide duct 50. Note that the air outlet 23 of the casing 20 extends in the left-right direction of the doorway 101 of the building 100.

  A plurality of openings 51 a are provided in the air guide duct 51 at intervals in the longitudinal direction of the air guide duct 51. Air is blown out from each opening 51a. The opening 51 a corresponds to the opening position of the blowout port 23, and therefore the air blown out from the opening 51 a blows out from the blowout port 23 of the casing 20.

  In the casing 20, a container 53 that stores a liquid medicine and a suction pipe 54 that communicates with the container 53 and sucks the medicine are provided. The suction pipe 54 extends over both ends of the air guide duct 51 along the outer surface of the air guide duct 51. The suction pipe 54 is provided with a medicine discharge nozzle 54 a at a portion corresponding to the opening 51 a of the air guide duct 51.

  In the third embodiment, since the nozzle 54a is arranged in the flow of air blown from the opening 51a, negative pressure acts in the nozzle 54a when air blows from the opening 51a. The drug in the container 53 is sucked out by the negative pressure, and the sucked medicine is mixed with the air blown out from the opening 51a.

  As described above, according to the air curtain device 1 according to the third embodiment, as in the first embodiment, it is possible to provide a new function that the conventional air curtain device does not have.

  Note that, as in Modification 1 shown in FIG. 12, the container and the suction tube may be omitted, and the drug impregnated body (drug supply unit) 55 may be provided in the casing 20. The drug impregnated body 55 may be arranged on the upstream side of the blower 10 as shown in the figure, or may be arranged on the downstream side of the air guide duct 51.

  Further, as in Modification 2 shown in FIG. 13, a liquid absorption core (liquid absorption member) 46 similar to Modification 4 of Embodiment 1 may be provided instead of the suction pipe 54. The liquid absorption core 46 extends across the both ends of the air guide duct 51 along the outer surface of the air guide duct 51. In the second modification, the air blown out from the opening 51a of the air guide duct 51 hits the liquid absorbent core 46, whereby the medicine in the liquid absorbent core 46 is mixed with the air.

  Further, the liquid absorption core 46 may be provided in the air guide duct 51, the intermediate duct 50, or the scroll casing of the blower 10.

  In the first to third embodiments, the blower 10 is provided in the casing 20. However, the blower 10 may be disposed outside the casing 20.

  In addition, as a method for supplying the drug, for example, the drug impregnated body or the liquid absorption core may be heated by electricity, the drug may be evaporated by a fan, or the drug may be evaporated by ultrasonic waves. The method of transpiration of the drug is not particularly limited.

  In addition, since the air curtain device 1 can adjust the air volume, for example, when it is not necessary to form an air curtain (when the factory is not in operation, for example), the air volume is reduced compared to when the air curtain is formed. It is also possible to reduce the pressure to drive the wind and continue only the drug diffusion.

  Further, the drug impregnated bodies 40, 42, 46 and the liquid absorption cores 43b, 47 may be provided at a plurality of locations of the air curtain device 1.

  In addition, the target insect type may vary depending on the area of use of the air curtain device 1 and the type of the building 100. In this case, only the type of medicine is changed without changing the main body of the air curtain device 1. By doing so, it can respond easily and at low cost.

  As described above, the air curtain device according to the present invention can be installed, for example, at a doorway of a building such as a factory.

DESCRIPTION OF SYMBOLS 1 Air curtain apparatus 10 Blower 20 Casing 23 Outlet (outlet part)
40 Drug impregnated body (drug supply unit)
43a Container 43b Absorption core (Liquid absorption member)
44a Container 44b Suction tube 45a Air passage

Claims (6)

In an air curtain device for forming an air curtain in an opening of a building,
A blower that sends air;
A blowout unit that blows out the air sent from the blower in a direction that intersects the direction of entering and exiting the opening, and forms an air curtain;
An air curtain device comprising: a medicine supply unit for mixing medicine with air for forming an air curtain. The air curtain device according to claim 1,
It has a suction part that sucks in air to form an air curtain,
An air curtain device, wherein the medicine supply section is arranged in the vicinity of the suction section. In the air curtain device according to claim 1 or 2,
The drug supply unit includes a container for storing a liquid drug, and a liquid absorbing member for sucking out the drug in the container,
The air curtain device, wherein the liquid absorbing member is disposed in an air flow for forming an air curtain. In the air curtain device according to claim 1 or 2,
The drug supply unit includes a container that stores a liquid drug, and a suction tube that is in communication with the container and sucks the drug.
An air curtain device, wherein the downstream end of the suction pipe in the drug flow direction is arranged in an air flow for forming an air curtain. In the air curtain device according to claim 1 or 2,
An air passage that opens to face the main flow of air to form an air curtain and extends to communicate with the atmosphere;
An air curtain device, wherein the air passage is provided with a medicine supply section. In the air curtain device according to any one of claims 1 to 5,
The drug contains at least one of insecticide, insect repellent, insect repellent, deodorant, disinfectant, bactericidal agent, fragrance, allergen aggregation remover, and quencher. Air curtain device.

Images