WO2006112357A1 - Buse à grille pour vaporisateur et vaporisateur - Google Patents

Buse à grille pour vaporisateur et vaporisateur Download PDF

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Publication number
WO2006112357A1
WO2006112357A1 PCT/JP2006/307838 JP2006307838W WO2006112357A1 WO 2006112357 A1 WO2006112357 A1 WO 2006112357A1 JP 2006307838 W JP2006307838 W JP 2006307838W WO 2006112357 A1 WO2006112357 A1 WO 2006112357A1
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WO
WIPO (PCT)
Prior art keywords
mesh nozzle
hole
mesh
nozzle
sprayer
Prior art date
Application number
PCT/JP2006/307838
Other languages
English (en)
Japanese (ja)
Inventor
Yoshihiro Hirata
Yasuhiro Okuda
Kei Asai
Shinichi Ito
Original Assignee
Sumitomo Electric Industries, Ltd.
Omron Healthcare Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries, Ltd., Omron Healthcare Co., Ltd. filed Critical Sumitomo Electric Industries, Ltd.
Publication of WO2006112357A1 publication Critical patent/WO2006112357A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn

Definitions

  • the present invention relates to a mesh nozzle for a sprayer and a sprayer, and more specifically, a sprayer that is used to atomize a chemical solution in a sprayer for atomizing and ejecting the chemical solution and has a plurality of through holes.
  • the present invention relates to a mesh nozzle and a sprayer having the mesh nozzle.
  • Nebulizers used for the treatment of respiratory diseases are required to have the ability to efficiently reach the target affected area in order to improve the therapeutic effect.
  • the sprayed drug particles can reach the bronchi, the bronchioles behind them, and even the alveoli if the particle size is reduced.
  • the therapeutic effect can be enhanced by securing a sufficient spray amount. Therefore, in order to improve the performance of the sprayer, it is necessary to reduce the spray particle size and increase the spray amount.
  • the mesh nozzle is an important member that has a great influence on the particle diameter and spray amount of the chemical liquid to be sprayed.
  • it is effective to reduce the outlet diameter of the mesh nozzle.
  • discharge resistance the resistance to chemical discharge
  • it is necessary not only to reduce the outlet diameter of the mesh nozzle, but also to optimize the shape of the holes and maintain a sufficient spray amount.
  • Patent Document 1 Japanese Patent Laid-Open No. 7-1172 (Patent Document 2), Kazuhito Nakamura, “Ultra-fine drilling of ceramic materials by excimer laser”, IEEJ Transaction E, 1997, 117 ⁇ 1, pl5-19 (non-patent document 2)).
  • Patent Document 1 Japanese Patent No. 2790014 (Japanese Patent Laid-Open No. 7-80369)
  • Patent Document 2 JP-A-7-1172
  • Non-Patent Document 1 Shinya Tanaka, 2 others, "Ultra-small mesh nebulizer", OMRON TEC HNICS, 2002, Vol.42 No.2, pl71-174
  • Non-Patent Document 2 Kazuhito Nakamura, “Ultra Fine Hole Machining of Ceramic Materials by Excimer Laser”, IEEJ Transactions E, 1997, 117 ⁇ 1, pl5- 19
  • the nebulizer having a mesh nozzle is a medical device, and it is desirable that the mesh nozzle be replaced in a short period of time and kept clean because of the property of directly touching the chemical solution. Therefore, in order to enable short-term replacement, it is also an issue to reduce the cost of the mesh nozzle.
  • a measure to reduce the thickness of the mesh nozzle is taken. However, the mesh nozzle with a small thickness becomes insufficient in rigidity, or if the rigidity is insufficient, the mesh nozzle itself will bend, so that sufficient pressure cannot be applied to the chemical that fills each hole, and the amount of spray is reduced. descend.
  • one object of the present invention is to provide a mesh nozzle for a nebulizer that can improve the therapeutic effect by having an optimal through-hole shape for increasing the spray amount of a chemical solution. .
  • Another object of the present invention is to provide a mesh nozzle for a sprayer that can be replaced in a short period of time by reducing the manufacturing cost of the mesh nozzle for the sprayer and can keep the mesh nozzle clean. .
  • Still another object of the present invention is to have a structure that can secure sufficient rigidity even when the mesh nozzle is thinned, thereby increasing the spray amount of the chemical solution by the sprayer and improving the therapeutic effect.
  • An atomizer mesh nozzle is provided.
  • Still another object of the present invention is to provide a nebulizer having an improved therapeutic effect by having the mesh nozzle.
  • a mesh nozzle for an atomizer is used for atomizing a chemical liquid in an atomizer for atomizing and ejecting the chemical liquid and has a plurality of through holes. It is a mesh nozzle, Comprising:
  • the through-hole has the taper shape which becomes narrow in the exit surface side of a mesh nozzle.
  • the taper angle of the through hole on the exit surface side is 40 degrees or more.
  • the present inventor has increased the amount of spray per through hole by increasing the taper angle on the outlet surface side of the through hole, and the taper.
  • the inventors have found that the spray amount increases rapidly when the angle is 40 degrees or more, and have arrived at the present invention. Therefore, a mesh nozzle for a sprayer according to one aspect of the present invention According to this, the amount of spray per through hole can be increased. As a result, it is possible to efficiently reach the affected part such as a patient with a respiratory disease and improve the therapeutic effect.
  • the atomizer mesh nozzle is used for atomizing a chemical solution in a sprayer for atomizing and ejecting the chemical solution, and has a plurality of through holes.
  • the through hole has a pyramid shape.
  • a mesh nozzle having a pyramid-shaped through-hole formed only of a flat surface is easy to manufacture a mold or the like. is there. Therefore, according to the mesh nozzle in another aspect of the present invention, the manufacturing cost of the mesh nozzle can be reduced. For this reason, the mesh nozzle in another aspect of the present invention is suitable for short-term replacement, and the mesh nozzle can be kept clean, so that the patient can use it with peace of mind.
  • a nebulizer with a mesh nozzle is a medical device, and it is highly desirable that the mesh nozzle be replaced in a short period of time because of its nature of direct contact with chemicals.
  • the pyramid has a larger surface area per volume than the cone. Therefore, in order to reduce the loss of discharge pressure due to friction, it is generally considered that the shape of the mesh nozzle through-hole should be conical rather than pyramid-shaped.
  • the present inventor has found that the fluid discharge pressure in the mesh nozzle having the pyramidal through hole is conical. It was found that there was almost no difference compared with the discharge pressure of a mesh nozzle having through holes. Therefore, according to the mesh nozzle in another aspect of the present invention, it is possible to provide an inexpensive mesh nozzle that can secure an amount of spray that is comparable to a mesh nozzle having a conical through hole. Accordingly, as described above, the mesh nozzle can be replaced in a short time, and the mesh nozzle can be kept clean.
  • a spray nozzle for a sprayer is used for atomizing a chemical liquid in a sprayer for atomizing and spraying the chemical liquid, and has a plurality of through holes.
  • This is a mesh nozzle.
  • the through hole has a tapered shape that becomes narrower on the outlet face side of the mesh nozzle. Furthermore, the through hole is on the exit surface side. It has a first taper angle and has a half-folded shape having a second taper angle smaller than the first taper angle on the inlet surface side of the mesh nozzle.
  • the present inventor depends on the taper angle on the outlet surface side of the through hole, and hardly changes even if the taper angle on the inlet surface side is reduced. I found out. Therefore, according to the atomizer mesh nozzle in still another aspect of the present invention, the diameter of the through hole can be reduced while sufficiently ensuring the taper angle on the outlet surface side of the through hole. The pitch between each other can be reduced, and the spray amount can be increased as a whole. As a result, it is possible to efficiently reach the affected part such as a patient with a respiratory disease, and the therapeutic effect can be improved.
  • the through-hole has a folded conical shape!
  • the through hole has a bent pyramid shape.
  • the through hole is formed in the portion having the second taper angle, and is formed in a columnar shape and in the portion having the first taper angle. It has a conical shape!
  • the through hole has a prismatic shape in a portion having the second taper angle, and a pyramidal shape in the portion having the first taper angle.
  • a shape [0026]
  • the taper angle of the through hole on the outlet face side of the mesh nozzle is 40 degrees or more. Thereby, the spraying amount per through-hole can be increased.
  • the mesh nozzle has a grid-like reinforcing structure.
  • a nebulizer mesh nozzle is used for atomizing a chemical solution in a nebulizer for atomizing and ejecting the chemical solution, and has a plurality of through holes. And having a lattice-like reinforcing structure.
  • the mesh nozzle for the sprayer in each of the above-described aspects is made of a high-abrasion-resistant and a resin.
  • the manufacturing cost can be kept lower than that of a commonly used metal mesh nozzle. Therefore, an inexpensive mesh nozzle can be provided.
  • the mesh nozzle can be replaced in a short period of time and the mesh nozzle can be kept clean. it can.
  • the mesh nozzle for atomizers contacts a vibrating body. Therefore, when the wear resistance is low, the mesh nozzle may be worn, and the shavings may be mixed into the chemical. This shavings is sprayed with the chemical solution and it is not preferable to inhale it. Furthermore, this shavings can cause the mesh nozzle to become clogged.
  • this problem can be solved by using a highly wear resistant resin material.
  • examples of the high abrasion-resistant resin include polyamide-based resin, polyester, syndiopolystyrene, polysulfone, polyethersulfone, polyetheretherketone, polyetherimide, polyamideimide, and PPS. (poly (phenylene sulfide)
  • the mesh nozzle has a structure manufactured by resin molding.
  • the mesh nozzle can be manufactured at low cost, and an inexpensive mesh nozzle can be provided.
  • resins for example, polysulfone, polyetheretherketone, PPS (poly (phenylene sulfide) should be used as the material. Is preferred.
  • a sprayer of the present invention is a sprayer having the above-described mesh nozzle for a sprayer.
  • the sprayer of the present invention a sufficient spray amount can be ensured even if the diameter of the outlet of the through hole of the mesh mesh nozzle is reduced in order to reduce the particle diameter of the sprayed chemical liquid. Therefore, the active ingredient contained in the drug solution can efficiently reach the target affected area, and the therapeutic effect can be improved. Further, according to the sprayer of the present invention, the manufacturing cost of the mesh nozzle can be kept low. Therefore, the mesh nozzle can be replaced in a short time, and the mesh nozzle can be kept clean.
  • the therapeutic effect can be improved by having an optimal through-hole shape for increasing the spray amount of the chemical solution.
  • a possible atomizer mesh nozzle can be provided.
  • the manufacturing cost of the mesh nozzle for the sprayer can be reduced to reduce the production cost. It is possible to provide a mesh nozzle for a nebulizer that can be replaced at an initial stage and can keep the mesh nozzle clean. Furthermore, by having a structure capable of ensuring sufficient rigidity, it is possible to provide a nebulizer mesh nozzle capable of increasing the amount of the chemical liquid sprayed by the nebulizer and improving the therapeutic effect.
  • nebulizer of the present invention it is possible to provide a nebulizer having an improved therapeutic effect by having the mesh nozzle. Furthermore, by having the mesh nozzle, a sprayer capable of keeping the mesh nozzle clean can be provided.
  • FIG. 1 is a schematic cross-sectional view showing a configuration of a sprayer according to an embodiment of the present invention.
  • FIG. 2 is a perspective view (a) and a partially enlarged view (b) showing the appearance of a mesh nozzle in the present embodiment.
  • FIG. 3 is a schematic partial cross-sectional view showing a cross section passing through the outlet of the through hole of the mesh nozzle and parallel to the discharge direction.
  • FIG. 4 is a schematic perspective view showing the shape of a through hole.
  • FIG. 5 is a schematic perspective view showing the shape of a through hole.
  • FIG. 6 is a schematic partial cross-sectional view showing a cross section passing through the outlet of the through hole of the mesh nozzle and parallel to the discharge direction.
  • FIG. 7 is a schematic perspective view showing the shape of a through hole.
  • FIG. 8 is a schematic perspective view showing the shape of a through hole.
  • FIG. 9 is a schematic perspective view showing the shape of a through hole.
  • FIG. 10 is a schematic perspective view showing the shape of a through hole.
  • FIG. 11 is a schematic plan view of a mesh nozzle.
  • FIG. 12 is a schematic cross-sectional view of the mesh nozzle taken along line XII-XII in FIG.
  • FIG. 13 is a scanning electron microscope (SEM) photograph of a cross section of a mesh nozzle that passes through the outlet of the through hole and is parallel to the discharge direction.
  • FIG. 14 is a diagram showing the relationship between the taper angle of the through hole and the number of spray particles.
  • FIG. 15 is a schematic partial cross-sectional view showing the cross-sectional shape of the through-hole passing through the outlet of the through-hole targeted for simulation and parallel to the spraying direction.
  • FIG. 16 is a diagram showing the relationship between the taper angle on the outlet surface side of the through hole and the discharge pressure obtained as a result of simulation.
  • FIG. 17 is a diagram showing the magnitude of discharge pressure and discharge flow rate of a quadrangular pyramid-shaped through-hole when the conical-shaped through-hole is 100, obtained as a result of simulation.
  • FIG. 18 is a scanning electron microscope (SEM) photograph showing the appearance of the produced mesh nozzle.
  • FIG. 19 is a schematic partial cross-sectional view showing a cross-sectional shape passing through the outlet of the through hole of the produced mesh nozzle and parallel to the discharge direction.
  • FIG. 20 is a diagram showing the arrangement of through-hole openings on the inlet surface of the mesh nozzle.
  • FIG. 21 is a schematic partial cross-sectional view showing a cross-sectional shape passing through the outlet of the through hole of the produced mesh nozzle and parallel to the discharge direction.
  • FIG. 22 is a schematic plan view of a mesh nozzle used in the experiment.
  • FIG. 23 is a schematic cross-sectional view of the mesh nozzle taken along the ridges in FIGS. 22 (a) and 22 (b). Explanation of symbols
  • Nozzle presser 15 panel, 16 Atomization opening, 20 Flow path member, 21 Supply pipe, 21A Supply pipe supply part, 30 Supply member, 31 Storage tank, 31A Storage tank outer wall, 31 ⁇ Storage Tank inner wall, 32 piston member, 32 ⁇ piston member flow path part, 40 liquid feeding member, 41 motor, 42 1st screw gear, 43 2nd screw gear, 44 presser lever, 80 through hole.
  • nebulizer 1 of the present embodiment includes an atomizing member 10, a channel member 20, a liquid supply member 30, and a liquid feeding member 40.
  • the atomizing member 10 and the liquid supply member 30 are connected by a flow path member 20.
  • the liquid feeding member 40 is disposed so as to act on the liquid supply member 30 and to push out the chemical stored in the liquid supply member 30 to the flow path member 20.
  • the liquid feeding member 40 has a motor 41, a first screw gear 42, a second screw gear 43, and a presser lever 44.
  • the first screw gear 42 is attached to the rotating shaft of the motor 41 and has a shaft-like first shape.
  • the presser lever 44 meshes with the second screw gear 43 so as to be movable in the axial direction of the second screw gear 43.
  • the liquid supply member 30 has a liquid storage tank 31 and a piston member 32.
  • the piston member 32 has a flow path portion 32A.
  • the liquid storage tank 31 is disposed so that the outer wall 31 A of the liquid storage tank 31 is in contact with the presser lever 44.
  • the piston member 32 is fitted so as to come into contact with the inner wall 31B of the liquid storage tank 31, and is installed so that the liquid storage tank 31 can move relative to the piston member 32.
  • the flow path member 20 has a liquid supply pipe 21.
  • the liquid supply pipe 21 has a liquid supply part 21A at one end, and the liquid supply part 21A is connected to the atomizing member 10. Further, the liquid supply pipe 21 is connected to the flow path portion 32A of the piston member 32 at the other end.
  • the atomizing member 10 includes a vibrator 11, a vibrating body 12, a mesh nozzle 13, a mesh nozzle presser 14, and a panel 15.
  • the vibrator 11 is disposed at one end of the vibrating body 12, and the mesh nozzle 13 is disposed so as to contact the atomizing surface 12A at the other end.
  • the region where the atomizing surface 12A and the mesh nozzle 13 are in contact with each other is disposed at a position where liquid can be supplied from the liquid supply portion 21A of the liquid supply pipe 21.
  • the panel 15 presses the mesh nozzle 13 so as to lightly contact the atomizing surface 12A of the vibrating body 12. Thereby, the inlet surface 13B of the mesh nozzle 13 is in contact with the atomizing surface 12A of the vibrating body 12.
  • the mesh nozzle presser 14 holds the panel 15.
  • the operation of the sprayer 1 will be described.
  • the motor 41 When the motor 41 is operated, the first screw gear 42 rotates, and the second screw gear 43 rotates accordingly.
  • the presser lever 44 moves along the axial direction of the second screw gear 43 and presses the outer wall 31A of the liquid storage tank 31.
  • the liquid storage tank 31 moves relative to the piston member 32, and the capacity of the liquid storage tank 31 decreases. Therefore, the chemical solution inside the liquid storage tank 31 flows into the liquid supply pipe 21 from the flow path portion 32A of the piston member 32.
  • the infused chemical liquid is supplied to the liquid supply part 21 of the liquid supply pipe 21.
  • A is supplied to the region where the atomizing surface 12A of the vibrating body 12 and the inlet surface 13B of the mesh nozzle 13 are in contact with each other through A.
  • the supplied chemical liquid is atomized by the synergistic effect of the vibration of the vibrating body 12 and the mesh nozzle 13, and is ejected from the outlet surface 13 A of the mesh nozzle 13 through the atomizing portion opening 16.
  • mesh nozzle 13 of the present embodiment has a plate-like outer shape. Further, referring to FIG. 2 (b), the mesh nozzle 13 of the present embodiment has a plurality of through holes 80.
  • through hole 80 of mesh nozzle 13 of the present invention has a tapered shape that becomes narrower on the exit surface 13 A side of the mesh nozzle.
  • the taper angle ⁇ on the outlet surface 13A side of the through hole 80 is 40 degrees or more.
  • the shape of the through hole 80 can be a conical shape as shown in FIG. 4, for example. Thereby, the spray amount per one can be increased in the through-hole 80, and the therapeutic effect can be improved.
  • the shape of the through hole 80 may be a pyramid as shown in FIG. Thereby, the manufacturing cost of the mesh nozzle 13 can be reduced, and the mesh nozzle 13 can be replaced in a short time.
  • 5 has an inlet diameter Ll and an outlet diameter L2.
  • the taper angle ⁇ on the exit surface 13A side is ZaPb where the midpoints of the sides facing the bottom surface are a and b, respectively, and the apex is P.
  • Figure 5 shows the case where the entrance and exit are square, but in a general polygon, a straight line passing through the center of gravity of the polygon and passing through the center of gravity and the midpoint of the side closest to the center of gravity is the side of the polygon.
  • L1 and L2 are defined by the distance between two intersecting points.
  • the taper angle ⁇ is defined as aPb where the two points where the straight line intersects the polygon side are a and b, and the apex is P.
  • the cross sectional shape of the through hole is the first on the outlet surface 13A side. And may have a folded shape having a second taper angle 0 smaller than the first taper angle 0 on the inlet surface 13B side of the mesh nozzle.
  • the pitch of through-holes can be made small.
  • the shape of the bent through-hole 80 may be a folded-down cone as shown in FIG. That is, a portion having the first taper angle 0 and a portion having the second taper angle 0
  • the shape of the through hole 80 that is folded may be a pyramid that is folded as shown in FIG. In other words, the portion having the first taper angle 0 and the second taper angle 0 are
  • the shape of the bent through-hole 80 is cylindrical as shown in Fig. 9 in the portion having the second taper angle and conical in the portion having the first taper angle.
  • the portion having the second taper angle has a prismatic shape
  • the portion having the first taper angle has a pyramid shape! You may have.
  • the taper angle ⁇ in each through-hole 80 shown in FIGS. 5 to 10 can be selected as appropriate, but is preferably 40 degrees or more. 8 and FIG. 10, the entrance diameter and the exit diameter of the pyramid portion of the through-hole 80 shown in FIG. 8 and FIG. Further, the taper angles 0 and ⁇ of the through hole 80 shown in FIG. 8 and the taper angle of the through hole 80 shown in FIG.
  • the path angle ⁇ is determined by ZaPb, where the midpoints of the sides facing the bottom are a and b, respectively, and the apex is P.
  • mesh nozzle 13 of the present embodiment has, for example, a disk-shaped mesh portion 13C having a plurality of through holes (not shown) and a reinforcing structure 13D.
  • the reinforcing structure 13D has ribs 13D formed along the outer edge on the inlet surface 13B side of the mesh nozzle 13, and ribs 13D arranged in a lattice pattern.
  • the 13 mesh portions 13C and the reinforcing structure 13D may be manufactured integrally, or may be separately manufactured and bonded together.
  • the reinforcing structure can be provided as necessary when the mesh nozzle has insufficient rigidity.
  • the mesh nozzle of the present embodiment is made of a highly wear-resistant resin, for example, a polyimide resin.
  • the mesh nozzle is polyamide-based resin, polyester, syndiopolystyrene, polysulfone, polyethersulfone, polyetheretherketone, polyetherimide, polyamideimide, PPS (poly (phenylene sulfide)), epoxy, phenol, etc.
  • a high-abrasion resistant resin may be used as a material.
  • the mesh nozzle of the present embodiment may have a configuration manufactured by resin molding.
  • Example 1 of the present invention will be described below.
  • a mesh nozzle was made by forming a large number of through holes in the resin board, and an experiment was conducted to investigate the relationship between the taper angle of the through holes and the spray amount.
  • a conical through-hole was formed in a polyimide resin plate having a thickness of 50 m using an excimer laser cage (wavelength: 348 nm) to produce a mesh nozzle.
  • an excimer laser cage wavelength: 348 nm
  • the produced mesh nozzles of (a) to (d) have conical shapes with taper angles of 22, 30, 43, and 70 degrees, respectively.
  • a through hole (exit diameter 3 / zm) was formed.
  • the inlet face side of the produced mesh nozzle was brought into contact with the atomizing surface of the vibrator, and the vibrator was vibrated by a horn vibrator.
  • water was supplied to the area where the vibrating body and the mesh nozzle were in contact to atomize, and the number of spray particles was measured.
  • Example 2 of the present invention will be described below.
  • a mesh nozzle with a quadrangular pyramid through hole and a mesh nozzle with a conical through hole were produced, and an experiment was conducted to compare the spray amount.
  • Example 2 In the same manner as in Example 1, a mesh nozzle having a large number of quadrangular pyramidal through holes and a mesh nozzle having a large number of conical through holes formed on a polyimide resin board.
  • the inlet diameter, outlet diameter, and taper angle of the through holes formed in these two types of mesh nozzles are the same.
  • the entrance surface side of the produced mesh nozzle was brought into contact with the atomizing surface of the vibrating body, and the vibrating body was vibrated by a horn vibrator.
  • the vibrating body and the mesh nozzle were in contact with each other, water was supplied to the area to be atomized, and the spray amount was measured.
  • the spray amount of the mesh nozzle having a quadrangular pyramidal through hole was about 92% of the spray amount of the mesh nozzle having a conical through hole. From this, it was found that the mesh nozzle having a quadrangular pyramidal through-hole has spray characteristics almost inferior to those of the mesh nozzle having a conical through-hole.
  • the entrance diameter and exit diameter of the through-holes in the shape of a quadrangular pyramid are defined as the lengths L1 and L2 of one side of the square that forms the entrance and exit of the through-holes, respectively.
  • the taper angle in the pyramid-shaped through-hole is defined as ZaPb with the midpoints of the opposite sides of the bottom as a and b and the apex as P.
  • the discharge pressure and discharge flow rate of the quadrangular pyramidal through hole with respect to the conical through hole were 90% and 95%, respectively. From the above, it is confirmed from this simulation result that the mesh nozzle having a quadrangular pyramid through-hole has almost the same spray characteristics as the mesh nozzle having a conical through-hole. f * i3 ⁇ 4.
  • a mesh nozzle was prepared by resin molding using polysulfone resin as a material, and an experiment was conducted to examine the spray characteristics.
  • the mesh nozzle has a thickness of 63 m, and the through hole has a quadrangular pyramid shape with an outlet of 4 m square and an inlet force of S 73 m square.
  • the entrance surface side and the lower side of the through hole of the upper cache nozzle in the photograph are the exit surface side.
  • the average particle size was 7 ⁇ m, and the spray amount was 0.25 mlZ. Since the average diameter of spray particles in a general sprayer is about 5 m and the spray amount is about 0.35 mlZ, it was found that sufficient spray characteristics can be obtained even with a mesh nozzle having a pyramidal through hole. .
  • Example 3 of the present invention will be described below.
  • a mesh nozzle having a conical through hole and a mesh nozzle having a folded conical through hole were produced, and an experiment was conducted to compare the spray amount.
  • the outlet diameter of the through hole is 3 m
  • the taper angle on the outlet surface side is 72 degrees
  • the thickness of the mesh nozzle is 50 .
  • the conical through hole has an inlet diameter of 75 m.
  • the tapered cone-shaped through hole has a taper angle changed at a position where the through hole outlet surface side force is 20 ⁇ m thick, and has an inlet diameter of 55 ⁇ m.
  • through holes are formed with the shortest distance between the entrance edges of adjacent through holes being 5 ⁇ m.
  • the distance (pitch) between the centers of the openings of the through holes on the entrance surface was 80 ⁇ m for the conical through holes, and 60 ⁇ m for the half-broken conical through holes.
  • the mesh nozzle was brought into contact with the inlet surface side of the mesh nozzle and the vibrating body was vibrated by a horn vibrator. In addition, water was supplied to the area where the vibrating body and the mesh nozzle were in contact to atomize, and the spray amount was measured.
  • the mesh nozzle having a half-conical through hole having a half-broken shape had a spraying amount of 70% higher than that of the mesh nozzle having the through hole having a conical shape.
  • the number of through holes per unit area of the mesh nozzle surface is increased by about 78%. Therefore, it is considered that the amount of spray increased corresponding to the ratio of the number of through holes. From this, it was confirmed that increasing the number of through-holes by making the through-holes into a bent shape is effective in increasing the spray amount.
  • Example 4 of the present invention will be described below.
  • a mesh nozzle having a cylindrical shape on the inlet surface side and a conical shape on the outlet surface side and having a through hole and a V, mesh nozzle having a conical through hole are produced.
  • the experiment which compares was conducted.
  • a mesh nozzle (b) having a through hole having a cylindrical shape on the inlet surface side and a conical shape on the outlet surface side is referred to as a mesh nozzle (a) having a conical through hole.
  • the mesh nozzle is made of polysulfone resin.
  • the inlet surface side of the mesh nozzle was brought into contact with the atomizing surface of the vibrating body, and the vibrating body was vibrated by a horn vibrator. In addition, water is applied to the area where the vibrating body and the mesh nozzle are in contact. It was made to atomize and the amount of spraying was measured.
  • the spray amount of the mesh nozzle (b) having a through hole having a cylindrical shape on the inlet surface side and a conical shape on the outlet surface side is three times that of the mesh nozzle (a) having a conical through hole. It was.
  • the effect of improving the rigidity of the mesh nozzle is greater than the effect of increasing the discharge resistance by increasing the thickness.
  • the shape of the through hole is a taper shape that is narrower on the outlet surface side, preferably a cylindrical shape on the inlet surface side. The fact that the side has a conical shape can be expected to increase the spray amount.
  • Example 5 of the present invention will be described below. A mesh nozzle with a grid-like reinforcement structure and a mesh nozzle without it were made, and an experiment was conducted to compare the spray amount.
  • mesh nozzle (a) having a reinforcing member has ribs surrounding the edge of the entrance surface and grid-like ribs. Both mesh nozzles have a square shape with a side of 4.3 mm square, and the thickness of the mesh part is 50 m.
  • the rib has a width of 100 ⁇ m and a thickness of 200 ⁇ m.
  • the inlet surface side of the mesh nozzle was brought into contact with the atomizing surface of the vibrating body, and the vibrating body was vibrated by a horn vibrator. Also, water was supplied to the area where the vibrating body and the mesh nozzle were in contact to atomize, and the spray amount was measured.
  • the spray amount of the mesh nozzle having the reinforcing structure was three times the spray amount of the mesh nozzle without the reinforcing structure.
  • the rigidity of the mesh nozzle with the reinforcing structure is 10 times that of the mesh nozzle without the reinforcing structure. Therefore, it can be considered that the spray amount increased due to the improvement in rigidity by the reinforcing structure.
  • the mesh nozzle of the present invention is not limited to this, for example, metal
  • the product may be made of ceramic.
  • a mesh nozzle and a sprayer for a sprayer according to the present invention are used for atomizing a chemical solution in a sprayer for atomizing and ejecting a chemical solution, and have a plurality of through holes, and the mesh nozzle. It can be applied particularly advantageously to sprayers with

Landscapes

  • Nozzles (AREA)

Abstract

Buse à grille (13) pour vaporisateur, comprenant plusieurs orifices de passage (80), d'une forme optimisée pour accroître l'efficacité d'un traitement médical en augmentant la quantité de produit chimique liquide atomisée par le vaporisateur. La buse à grille est utilisée pour atomiser le produit chimique liquide. Les orifices de passage (80) de la buse à grille (13) du vaporisateur ont une forme biseautée convergeant vers sa face de sortie (13A), dont l'angle conique (θ1) est de 40° ou plus.
PCT/JP2006/307838 2005-04-18 2006-04-13 Buse à grille pour vaporisateur et vaporisateur WO2006112357A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-120098 2005-04-18
JP2005120098A JP2006297226A (ja) 2005-04-18 2005-04-18 噴霧器用メッシュノズルおよび噴霧器

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WO2006112357A1 true WO2006112357A1 (fr) 2006-10-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1932597A3 (fr) * 2006-12-15 2008-12-17 Ing. Erich Pfeiffer GmbH Dispositif de dosage
US7779830B2 (en) 2004-02-05 2010-08-24 Ing. Erich Pfeiffer Gmbh Dosing device
JP5157000B1 (ja) * 2012-03-28 2013-03-06 田中貴金属工業株式会社 噴霧器用メッシュ
RU222201U1 (ru) * 2023-07-24 2023-12-14 Кирилл Андреевич Чинцов Мембрана для экономии воды при эксплуатации сантехнических устройств

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5979471B2 (ja) * 2012-01-11 2016-08-24 大日本印刷株式会社 噴霧デバイス用の液体カートリッジ、液体カートリッジパッケージ、噴霧デバイス及び噴霧デバイス用のメッシュ付容器
EP2644282B1 (fr) 2012-03-28 2015-10-21 Tanaka Kikinzoku Kogyo K.K. Tamis pour nébuliseur et méthod de production de celui-ci
EP3476982A1 (fr) * 2012-06-11 2019-05-01 Stamford Devices Limited Procédé de production d'une plaque d'ouverture pour un nébuliseur
JP2014004211A (ja) * 2012-06-26 2014-01-16 Omron Healthcare Co Ltd 液体噴霧装置
JP6054673B2 (ja) * 2012-08-03 2016-12-27 株式会社オプトニクス精密 噴霧器用メッシュノズル及び噴霧器
JP6006647B2 (ja) * 2013-01-24 2016-10-12 田中貴金属工業株式会社 噴霧機用メッシュおよびその製造方法
JP5928425B2 (ja) 2013-09-24 2016-06-01 オムロンヘルスケア株式会社 ネブライザ用メッシュ選定方法、装置、及びプログラム
JP6415953B2 (ja) * 2014-12-05 2018-10-31 オムロン株式会社 メッシュの製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0315674U (fr) * 1989-06-27 1991-02-18
JPH04100557A (ja) * 1989-12-12 1992-04-02 Bespak Plc 噴霧器及び噴霧方法
JP2790014B2 (ja) * 1993-09-16 1998-08-27 オムロン株式会社 超音波式吸入器用メッシュ部材及びその製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0315674U (fr) * 1989-06-27 1991-02-18
JPH04100557A (ja) * 1989-12-12 1992-04-02 Bespak Plc 噴霧器及び噴霧方法
JP2790014B2 (ja) * 1993-09-16 1998-08-27 オムロン株式会社 超音波式吸入器用メッシュ部材及びその製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7779830B2 (en) 2004-02-05 2010-08-24 Ing. Erich Pfeiffer Gmbh Dosing device
EP1932597A3 (fr) * 2006-12-15 2008-12-17 Ing. Erich Pfeiffer GmbH Dispositif de dosage
US7837129B2 (en) 2006-12-15 2010-11-23 Ing. Erich Pfeiffer Gmbh Metering device
JP5157000B1 (ja) * 2012-03-28 2013-03-06 田中貴金属工業株式会社 噴霧器用メッシュ
RU222201U1 (ru) * 2023-07-24 2023-12-14 Кирилл Андреевич Чинцов Мембрана для экономии воды при эксплуатации сантехнических устройств
RU224331U1 (ru) * 2023-10-26 2024-03-21 Кирилл Андреевич Чинцов Устройство для экономии жидкости при эксплуатации сантехнического прибора

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