JP2017113702A - Spray and spray device using the spray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spray which can prepare fine mist of aroma oil provided by blending a plurality of kinds of vegetable oil having different volatility and can prevent oxidation of a component in a procedure of mist preparation or deterioration accompanied by a change of mixing rate.SOLUTION: The spray is characterized in that an upper opening 11 is enclosed by a cover part 2 having a mist releasing hole 21, a storage tank 14 capable of storing spray liquid is provided on an inner part, an inner pipe 3 which has the tip part formed of an air feed port 33 for ejecting compression air and an outer pipe 4 which is externally inserted by providing a gap as a liquid channel 41 on the inner pipe 3, and has the tip part formed of a mist injection port 42 are vertically arranged in the storage tank 14, an upper separation plate 6 which shields flow of mist to the mist releasing hole 21 from the mist injection port 42 is provided between the cover part 2 and the outer pipe 4, a tubular liquid layer separation pipe 5 is annularly arranged at a prescribed interval from an outer circumferential surface of the outer pipe 4 on the outer pipe 4, and a mist space separation plate 7 which pierces an opening on the center and is extended in a flange shape to the circumferential wall direction of a spray main body 1 from the upper end part neighborhood of the liquid layer separation pipe 5 is provided on the lower side of the upper part separation plate 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sprayer particularly suitable for generating mists of aromatic components mainly composed of plant essential oils and a spraying apparatus using the same.

  2. Description of the Related Art A type of sprayer that introduces compressed air, sucks up a spray liquid by a Venturi effect, forms a mist, and sprays is known. When plant essence oil or the like is made mist with such a sprayer, by making the mist as fine as possible, the residence time in the air of the mist becomes longer and the diffusion distance becomes longer, so a small amount of liquid even in a wide space Thus, the action of the active ingredient can be effectively expressed and sustained for a long time. In particular, in the case of plant essential oil, since the mist has a large specific surface area and the fragrance component diffuses quickly, the fragrance action can be quickly obtained over a wide range. As sprayers that can generate such fine mist, Patent Documents 1 and 2 disclose sprayers that remove mist having a relatively large particle size by moving the mist up and down.

  However, as the particle size of the mist decreases, the specific surface area of the generated particles that come into contact with the air increases accordingly, so that components such as essential oils contained in the mist are likely to be oxidized. Due to the structure, it takes a long time for the coarse mist that is not discharged to the outside of the sprayer to come into contact with the air before being reduced to the spray liquid in the storage tank, so that oxidation tends to be promoted. Furthermore, when the coarse mist that has come into contact with the air is reduced to the spray liquid, it mixes with the entire spray liquid and may oxidize the entire storage tank.

  Therefore, Patent Document 3 discloses a sprayer provided with an oxidation preventing means. However, this system is to prevent the mist oxidation reaction by generating negative ions, and the apparatus is large-scale, including a negative ion generation unit. Further, unlike the present invention, since a mist generation mechanism using ultrasonic waves is employed, it is not possible to generate fine mist.

  Furthermore, when using aroma oils blended with a plurality of plant essential oils with different volatility, the highly volatile essential oil components are first misted and discharged, so the mixing ratio of the essential oil components in the spray liquid remaining in the storage tank As a result, the scent itself could be altered.

JP 55-54240 A JP 63-80866 JP2007-111394A

  Therefore, the present invention overcomes such drawbacks of conventional sprayers and spraying devices, and oxidizes the components associated with the formation of fine mist and reduces the time of reduction of the coarse mist to the spray solution by blending the spray solution components. It is an object of the present invention to provide a sprayer that can prevent a change in aroma and the like accompanying a change in the mixing ratio and a spray device that uses the sprayer.

  The present invention solves the above-described problem, and includes a storage tank in which an upper opening is sealed by a lid portion having a mist discharge hole and can store a spray liquid therein. An inner pipe in which an air supply port for discharging air is formed, and an outer pipe in which a gap serving as a liquid flow path is provided in the inner pipe, and an outer pipe in which a mist jet port is formed at the tip end portion is erected, Further, the sprayer is provided with an upper separating plate for blocking the flow of mist from the mist outlet to the mist discharge hole between the lid and the outer tube, and the outer tube has a constant outer peripheral surface and a constant surface. Cylindrical liquid layer separation pipes are mounted at intervals, and an opening is formed in the center below the upper separation plate, and in a bowl shape from the vicinity of the upper end of the liquid layer separation pipe toward the peripheral wall of the sprayer body. The sprayer is provided with an extending mist space separation plate.

  Furthermore, this invention is a spraying device provided with this sprayer and the compressed air generation source which supplies compressed air to a sprayer.

  In the nebulizer according to the present invention, coarse mist is selectively taken into the liquid layer separation pipe by the upper separation plate and the mist space separation plate, and is quickly reduced to the spray solution. Thereby, the time which mist contacts the air in a storage tank is shortened, and the oxidation of mist can be prevented effectively. In addition, since the spray liquid liquefied from the mist is sucked up preferentially from the liquid layer separation pipe to the mist generating section, it is reused as mist before being mixed with other spray liquid in the storage tank. Oxidation can be prevented.

  In addition, when using a blend of a plurality of plant essential oils with different volatility as the spray liquid, the mist containing a large amount of low volatility components that did not lead to discharge is selectively taken into the liquid layer separation tube and stored in the storage tank. Since it is reused as mist before being mixed with other spray liquids in the inside, the influence on the mixing ratio of the spray liquid in the entire storage tank can be minimized.

  Further, since the air flow for reducing the coarse mist to the spray liquid acts to push down the liquid level in the liquid layer separation tube, the venturi effect for generating mist is promoted. As described above, according to the present invention, it is possible to effectively prevent the oxidation and deterioration of the spray liquid without requiring a large-scale device such as a negative ion generation unit, and to obtain a fine mist suitable as an essential oil sprayer. .

Sectional view of a sprayer according to the present invention (A) Plan view of the inner tube of the present invention, (b) Front view of the inner tube of the present invention, (c) Bottom view of the inner tube of the present invention (A) Plan view of outer tube and liquid layer separation tube of the present invention, (b) Front view of outer tube and liquid layer separation tube of the present invention, (c) Bottom view of outer tube and liquid layer separation tube of the present invention (A) Top view of the upper separator plate of the present invention, (b) Front view of the upper separator plate of the present invention, (c) Bottom view of the upper separator plate of the present invention (A) Top view of upper separator plate of different embodiment of the present invention, (b) Front view of upper separator plate of different embodiment of the present invention, (c) Bottom view of upper separator plate of different embodiment of the present invention. (A) Top view of the mist space separation plate of the present invention, (b) Front view of the mist space separation plate of the present invention, (c) Bottom view of the mist space separation plate of the present invention (A) The figure showing the movement of the coarse mist at the time of the operation of the sprayer of the present invention, (b) The figure showing the movement of the fine mist at the time of the operation of the sprayer of the present invention. The figure which represented typically the spraying apparatus provided with the sprayer of this invention.

  Hereinafter, embodiments of the sprayer and the spray device of the present invention will be specifically described with reference to the drawings. Note that the present invention is not limited to these embodiments.

  As shown in FIG. 1, the main body 1 of the sprayer according to the present invention is formed in a bottomed cylindrical shape having a storage tank 14 capable of storing a spray liquid therein. The upper portion of the main body 1 is open, and the lid portion 2 is screwed into the opening 11. Further, a hole 131 for attaching the inner tube 3 is penetrated in the center of the bottom 13 of the main body 1.

  A base portion 31 of the inner pipe 3 is attached to the back side of the bottom portion 13 of the main body 1. As shown in FIG. 2, the inner pipe 3 is erected from the upper surface of the base portion 31 and is suspended in the storage tank 14 by being inserted into the hole 131 of the bottom portion 13 from the outside. Inside the inner pipe 3, an air supply path 32 is penetrated from the back surface of the base portion 31 to the tip of the inner pipe 3, and an air supply port communicating with the air supply path 32 is provided at the tip of the inner pipe 3. 33 is provided. Further, an oil seal 35 having an opening 351 at the center is attached to the recess on the back surface of the base portion 31.

  The outer tube 4 is extrapolated in the inner tube 3 with a gap forming a liquid channel 41 through which the spray liquid can flow. As shown in FIG. 3, the outer tube 4 is formed in a hollow cylindrical shape into which the inner tube 3 can be inserted, and is screwed to the base portion of the inner tube 3. A mist ejection port 42 that communicates with the liquid channel 41 is formed at the distal end of the outer tube 4, and a liquid suction port 43 that communicates with the liquid channel 41 is formed at the base of the outer tube 4.

  Furthermore, a fin portion 34 for fixing the inner tube 3 and the outer tube 4 may be provided on the outer peripheral wall near the tip of the inner tube 3 as in this embodiment. The fin portion 34 protrudes from the outer peripheral wall near the tip of the inner tube 3 at a plurality of locations, and the protruding end portion is formed so as to contact the inner peripheral wall of the outer tube 4. As a result, the inner tube 3 and the outer tube 4 are fixed to each other not only at the base but also at the distal end. For example, even when the accuracy of screwing and fitting of the base of the outer tube 4 and the inner tube 3 is poor, The axial centers of the tube 4 and the inner tube 3 can always coincide. As a result, misalignment of the cores of the air supply port 33 and the mist outlet 42 can be prevented, and mist can be generated stably. Even if the lengths of the inner tube 3 and the outer tube 4 are increased, the cores of the air supply port 33 and the mist jet port 42 always coincide with each other. Therefore, the inner tube 3 and the outer tube 4 are formed to have arbitrary lengths. The depth of the storage tank 14 can be set freely.

  Furthermore, a liquid layer separation tube 5 is concentrically mounted on the outer tube 4 so as to surround the outer tube 4 with a certain distance from the outer peripheral surface. The liquid layer separation tube 5 is formed in a cylindrical shape having upper and lower ends opened, and is fixed to the outer wall wall of the outer tube 4 by a plurality of support plate portions 51 in such a manner that the outer tube 4 is inserted therein. . The liquid layer separation pipe 5 is formed so that the inner diameter is slightly larger in the upper part than in the lower part, and at the time of assembling each member, the upper end part thereof is slightly lower than the upper end part of the outer pipe 4, The lower end portion is disposed so as to provide a gap with the bottom portion 13 of the storage tank 14. From the gap with the bottom portion 13, the spray liquid in the storage tank 14 can flow into the liquid layer separation pipe 5. Further, a taper 52 that is inclined obliquely upward from the inner peripheral wall to the outer peripheral wall of the liquid layer separation tube 5 may be formed at the upper end portion of the liquid layer separation tube 5.

  The lid portion 2 detachably formed in the opening 11 of the main body 1 has a mist discharge hole 21 through which the mist is discharged out of the storage tank 14 at the center thereof. And the back surface of the cover part 2 has a triangular pyramid-shaped inclined surface 22 recessed toward the mist discharge hole 21.

  Below the lid portion 2, the upper separation plate 6 is attached to the inclined surface 22 at a predetermined interval so as to block the flow of mist from the mist ejection port 42 to the mist discharge hole 21. As shown in FIG. 4, the upper separation plate 6 is formed in a disk shape having a slightly smaller diameter than the inner diameter of the storage tank 14, and mist passes between the peripheral edge portion and the peripheral wall 12 of the main body 1 during assembly. Create possible gaps. Further, it is preferable to provide a concave curved surface 61 that curves in an inverted saddle shape on the lower surface of the upper separation plate 6, and an annular convex portion 62 that projects downward from the middle of the concave curved surface 61. May be provided. In this embodiment, the annular convex portion 62 is provided on the inner side of the concave curved surface 61, but it may be provided on the peripheral portion of the concave curved surface 61 or on the outer side of the concave curved surface 61. Note that a mist passage hole 63 as shown in FIG. In the aspect of FIG. 5, four mist passage holes 63 are formed outside the concave curved surface 61, and the mist moves from the lower part of the upper separation plate 6 to the space above the mist passage hole 63. it can.

  Further, a mist space separation plate 7 is attached below the upper separation plate 6 with a predetermined space between it and the upper separation plate 6. As shown in FIG. 6, the mist space separation plate 7 is formed in a disk shape having a slightly smaller diameter than the inner diameter of the storage tank 14, and an opening 71 is formed through the center thereof. Then, at the time of assembling each member, the opening 71 is disposed so as to be positioned immediately above the liquid layer separation pipe 5. That is, the mist space separation plate 7 is in a state of extending like a bowl from the vicinity of the upper end portion of the liquid layer separation pipe 5 toward the peripheral wall 11. In addition, the outer tube 4 is inserted into the opening 71 from below, and the pointed portion protrudes from the opening 71. Further, as in this embodiment, the upper surface of the mist space separation plate 7 is preferably provided so as to incline downward toward the opening 71, and a plurality of rising portions 72 are spaced at predetermined intervals along the peripheral edge of the opening 71. May be provided.

  The opening 71 of the mist space separation plate 7 is formed with a small diameter or substantially the same diameter as the upper end opening diameter of the liquid layer separation pipe 5. Further, it is preferable to provide a taper 73 on the lower surface of the mist space separation plate 7 and on the peripheral edge of the opening 71 so as to face the taper 52 of the liquid layer separation pipe 5 with a predetermined gap. In this embodiment, the liquid layer separation tube 5 and the mist space separation plate 7 are individually provided as separate members. However, they may be integrally formed. In this case, the liquid layer separation tube 5 The upper end portion of the mist space may be extended upward as it is and connected to the edge portion of the opening 71 of the mist space separation plate 7.

  Next, the mist production | generation mechanism by the sprayer of this invention is demonstrated. First, compressed air introduced from a compressed air generation source such as a pump into the air supply path 32 of the inner pipe 3 is discharged upward from the air supply port 33, and further discharged through the mist outlet 42 into the storage tank 14. The At this time, the compressed air is discharged from the mist outlet 42, whereby the space between the distal end portion of the inner tube 3 and the outer tube 4 becomes negative pressure. As a result, the spray liquid that has entered the outer tube 4 from the liquid suction port 43 is sucked upward through the liquid flow path 41, a liquid film is formed along the upper opening surface of the air supply port 33, and this is discharged. It is torn off by air and becomes a primary mist.

  The primary mist ejected into the space between the distal end portion of the inner tube 3 and the outer tube 4 in this way collides with the inner peripheral wall surface of the outer tube 4 and is torn off due to the air flow share due to the impact and the orifice effect. This produces a finer secondary mist. The secondary mist is ejected from the mist ejection hole 42 into the storage tank 14.

  FIG. 7 schematically shows the flow of mist in the storage tank 14 and the state of mist circulation to the spray liquid. As shown in the drawing, the secondary mist ejected upward from the mist ejection hole 42 collides with the concave curved surface 61 of the upper separation plate 6 provided above the secondary mist. Here, the coarse mist M1 having a large particle diameter (the movement of which is indicated by a solid arrow in FIG. 7A) bounces downward mainly due to the large inertial force, and passes through the opening 71 into the liquid layer separation pipe 5. It is captured. More specifically, although the coarse mist M1 is ejected while being diffused from the mist ejection hole 42, the flow is concentrated in the direction of the opening 71 without being diffused in the peripheral direction of the upper separation plate 6 by the action of the concave curved surface 61. . Furthermore, the downward flow is further promoted by the annular convex portion 62 provided on the concave curved surface 61. Further, the rising portion 72 provided at the peripheral portion of the opening 71 also suppresses diffusion in the peripheral direction of the mist space separation plate 7 in the process in which the coarse mist M1 descends. As described above, most of the coarse mist M1 is not discharged out of the system but is taken into the liquid layer separation pipe 5 through the opening 71.

  Regardless of the function of the annular convex portion 62 and the rising portion 72, the coarse mist M1 diffused in the peripheral direction of the mist space separation plate 7 has already lost its inertial force. Since it is cut off from the space outside 5, it does not diffuse into the storage tank 14, and is united with each other on the mist space separating plate 7. The united mist flows along the inclination of the mist space separation plate 7 to the opening 71 and is taken into the liquid layer separation pipe 5 through the opening 71. Note that a gap is formed between the mist space separation plate 7 and the liquid layer separation pipe 5, but the gap is inclined upward and outward from the liquid layer separation pipe 5 by the taper 52 and the taper 73. It is difficult for the coarse mist M1 that settles in the liquid layer separation pipe 5 to escape to the external storage tank 14 from the gap.

  As described above, the coarse mist M1 taken into the liquid layer separation tube 5 settles in a limited space of the liquid layer separation tube 5, so that it does not come into contact with air or mist outside the liquid layer separation tube 5. Then, it quickly returns to the spray liquid L1 in the storage tank 14. For this reason, the time which the coarse mist M1 contacts with the air is shortened, and the oxidization promotion of the mist can be suppressed. Further, the oxidized coarse mist M1 is circulated to the spray liquid L1 in the liquid layer separation pipe 5, and the circulating spray liquid L1 is preferentially given to the liquid flow path from the liquid suction port 43 over the spray liquid outside the liquid layer separation pipe 5. Since it is taken into 41 and reused for producing mist, it can be effectively prevented from being mixed with the spray liquid L2 outside the liquid layer separation pipe 5 and being oxidized in the entire storage tank. Further, when the coarse mist is reduced to the spray liquid, the flow of air directed downward by the concave curved surface 61 and the annular convex portion 62 acts to push down the liquid surface in the liquid layer separation pipe 5, so that mist generation is performed. Venturi effect is promoted.

  Further, when the spray liquid is composed of a blend of a plurality of plant essential oils having different volatility, even if the low volatility component remains without being discharged, in the liquid layer separation tube 5 as in the above-described coarse mist. The recirculated spray liquid L1 is recirculated to the spray liquid L1, and the recirculated spray liquid L1 is taken into the liquid flow path 41 from the liquid suction port 43 in preference to the spray liquid L2 outside the liquid layer separation pipe 5, and is reused for mist generation. It is possible to prevent mixing with the spray liquid in the entire storage tank, and to minimize the influence due to the change in the mixing ratio of a plurality of components.

  On the other hand, the fine mist M2 that does not circulate in the spray liquid L (the movement is indicated by a broken line arrow in FIG. 7B) does not bounce downward because the inertial force is small even when it collides with the concave curved surface portion 61. It spreads in the horizontal direction on the airflow. Specifically, the fine mist M <b> 2 that has collided with the concave curved surface portion 61 tries to diffuse in the horizontal direction beyond the annular convex portion 62. Then, it diffuses from the gap between the rising portions 72 onto the mist space separation plate 7. Thus, the fine mist M2 discharged onto the mist space separation plate 7 continues to diffuse toward the peripheral wall 12 between the upper separation plate 6 and the mist space separation plate 7 along the air flow, and the upper separation plate When reaching the peripheral edge 6, the gap between the peripheral edge of the upper separation plate 6 and the peripheral wall 12 is turned upward. In this way, the fine mist M2 that has circulated above the upper separation plate 6 flows into the mist discharge hole 21 along the inclined surface 22 of the lid 2 and is discharged outside the system.

  As described above, the spray liquid L2 outside the liquid layer separation tube 5 is blocked from both the air flow for discharging the fine mist M2 out of the system and the air flow for reducing the coarse mist M1 to the spray liquid L1. Since it remains in the storage tank in a state, the oxidation of the spray liquid L2 due to contact with air can be suppressed.

  The diameter and amount of the mist generated by the mist generating mechanism and discharged from the mist discharge hole 21 to the outside of the system are affected by the air volume / pressure of the compressed air supplied from the outside. Depends on the path (such as the size of the gap and the volume of the space) through which. Therefore, it is possible to adjust the diameter and amount of the released mist by appropriately setting the dimensions and the like. For example, the mist discharged to the outside flows into the mist discharge hole 21 through the gap between the peripheral edge of the upper separator 6 and the peripheral wall 12 and adjusts the outer diameter of the upper separator 6. Thus, the gap with the peripheral wall 12 can be narrowed or widened. And when this clearance gap is set narrowly, since it becomes difficult for a mist with a large diameter to move above the upper separating plate 6, the mist discharged | emitted eventually becomes a smaller diameter, and the quantity of mist also reduces. In addition, when the gap is set wide, the mist having a large diameter can be easily moved upward, so that the diameter of the released mist becomes relatively large and the amount of mist increases. Furthermore, as shown in FIG. 5, the mist passage hole 63 formed in the upper separation plate 6 allows the mist to move upward also from that portion, so that the diameter of the released mist is larger, The amount of mist further increases. In addition to this, the protruding height and inner diameter of the annular protrusion 62, the protruding height of the rising portion 72 and the width of the gap, the distance between the upper separating plate 6 and the inclined surface 22, the upper separating plate 6 and the mist space separating plate 7 It is also possible to adjust the diameter and amount of the released mist by appropriately setting the interval of the mist.

  FIG. 8 is a diagram showing an embodiment of a spraying device provided with the sprayer of the present invention. In the housing D, the sprayer A of the present invention and the compressed air generation source C for supplying compressed air to the sprayer A are connected to the tube B. Are connected through. Further, on the surface of the housing D, a display / switch E indicating the setting of the spray device is provided.

  The sprayer of the present invention is preferably detachably attached to the spraying device. Although both attachment methods can be considered, as an example, an adapter F for connection may be provided on the spraying device side (the connection side end of the tube B). The adapter F is formed so as to be able to fit into the opening 351 of the oil seal 35 of the base 31 and is formed so as to be able to discharge the compressed air sent from the tube through the central hole. The user only has to place the sprayer at a designated position so that the adapter F is fitted into the opening of the oil seal, whereby the connection work between the two is completed and the tube B connected to the adapter F is compressed. Air can be sent into the inner tube 3. Further, when removing, it is only necessary to lift the sprayer and remove the oil seal 35 from the adapter F. With the above configuration, the user can easily attach and detach the sprayer to and from the spraying device.

  In the spraying apparatus of the present invention, on / off of the pump may be controlled by a microcomputer connected to a timer switch, a power switch or the like. In this way, by setting the pump power and timer, and adjusting the operation time in the intermittent operation and the overall operation time, it is possible to finely adjust the spray amount.

  In the sprayer and the spray device of the present invention described above, one set of mist generating parts each composed of the inner tube 3, the outer tube 4 and the like is provided for one sprayer, but a plurality of them may be provided. For example, when three sets of mist generating parts including the inner pipe 3 and the outer pipe 4 are provided in one reservoir 14, three openings 71 are formed in the mist space separation plate 7 according to the positions of the mist generating parts. May be formed. Moreover, what is necessary is just to form the one concave curved surface part 61 so that those three sets of mist production | generation parts may be included in the upper separator plate 6 within the range. Further, three annular protrusions 62 may be formed on the upper separating plate 6 according to the positions of the respective mist generating parts. Thus, the amount of mist generated can be increased by providing a plurality of mist generating sections in one reservoir 14.

  Further, the inside of one reservoir 14 may be divided into a plurality of reservoirs by partition walls, and a mist generating unit may be provided in each reservoir. As a result, not only can the amount of mist generated be increased, but also different types of spray liquids can be put into each reservoir, and these mists can be generated simultaneously to mix a plurality of types of mist in the air. Alternatively, mists of different types can be generated and sprayed with a time difference, and the scent can be changed over time.

  The sprayer and spray device of the present invention have been mainly described as a fine mist generator for aromatic plant essential oils. However, as a fine mist generator for fragrances other than plant essential oils or similar deodorants, It can be used widely in bedrooms, bathrooms and toilets. In addition, the sprayer and spray device of the present invention can be used for spraying insecticides, antibacterial agents, bactericides, agricultural chemicals, etc., spraying in a substantially sealed house suitable for long-term floating time, or foliar spraying, etc. It can be applied as it is to applications that require a reduction in the amount of fine mist or the amount of liquid used. In particular, since a mist smaller than the insect's airway size can be sprayed, it is extremely effective in spraying insecticides that act on the respiratory system.

DESCRIPTION OF SYMBOLS 1 ...... Main body 2 ...... Lid 3 ...... Inner tube 4 ...... Outer tube 5 ...... Liquid layer separation tube 6 ...... Upper separation plate 7 ...... Mist space separation plate 11 ...... Opening 12 ...... Perimeter wall 13 ...... Bottom part 14 ... ... Storage tank 21 ... ... Mist discharge hole 22 ... ... Inclined surface 31 ... ... Base part 32 ... ... Air supply path 33 ... ... Air supply hole 34 ... ... Fin part 41 ... ... Liquid channel 42 ... ... Mist outlet 43 …… Liquid inlet 51…… Support plate portion 52…… Tapered 61…… Concave surface portion 62…… Annular convex portion 63…… Mist passage hole 71…… Opening 72…… Rising portion 73…… Taper A…… Sprayer B…… Tube C…… Compressed air generation source D…… Housing E…… Indicator / switch F…… Adapter L1…… Spray liquid in liquid layer separation tube L2…… Spray solution outside liquid layer separation tube M1 …… Coarse mist M2…… Fine mist

Claims (7)

  An inner tube in which an upper opening is sealed by a lid portion having a mist discharge hole, and a storage tank capable of storing a spray liquid therein is provided, and an air supply port for discharging compressed air is formed in a distal end portion in the storage tank And an outer tube having a mist outlet formed at the tip thereof, and a mist between the lid and the outer tube. A sprayer provided with an upper separation plate that blocks the flow of mist from a jet outlet to a mist discharge hole, wherein a cylindrical liquid layer separation pipe is annularly connected to the outer pipe at a certain distance from the outer peripheral surface of the outer pipe. A mist space separation plate is provided below the upper separation plate, with an opening penetrating in the center and extending in a bowl shape from the vicinity of the upper end of the liquid layer separation tube toward the peripheral wall of the sprayer body. A nebulizer.   The sprayer according to claim 1, wherein a concave curved surface is provided at a lower portion of the upper separation plate.   The sprayer according to claim 1, wherein an annular convex portion projecting downward is provided at a lower portion of the upper separation plate.   The sprayer according to any one of claims 1 to 3, wherein a mist passage hole is formed in the upper separation plate.   The sprayer according to any one of claims 1 to 4, wherein a plurality of rising portions are provided along a peripheral edge portion of the opening of the mist space separation plate.   6. A plurality of fins projecting from the outer peripheral wall in the vicinity of the distal end portion of the inner tube so that the protruding end abuts against the inner peripheral wall of the outer tube. A nebulizer as described in.   A spraying device comprising the sprayer according to claim 1 and a compressed air generation source for supplying compressed air to the sprayer.

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