WO2016076038A1 - Spray nozzle and humidifier provided with said spray nozzle - Google Patents

Spray nozzle and humidifier provided with said spray nozzle Download PDF

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Publication number
WO2016076038A1
WO2016076038A1 PCT/JP2015/078326 JP2015078326W WO2016076038A1 WO 2016076038 A1 WO2016076038 A1 WO 2016076038A1 JP 2015078326 W JP2015078326 W JP 2015078326W WO 2016076038 A1 WO2016076038 A1 WO 2016076038A1
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WO
WIPO (PCT)
Prior art keywords
nozzle
hole
water
spray
nozzle hole
Prior art date
Application number
PCT/JP2015/078326
Other languages
French (fr)
Japanese (ja)
Inventor
博 池内
憲男 大西
弘樹 平松
Original Assignee
株式会社いけうち
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Filing date
Publication date
Application filed by 株式会社いけうち filed Critical 株式会社いけうち
Publication of WO2016076038A1 publication Critical patent/WO2016076038A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F24F6/14—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using nozzles

Definitions

  • the present invention relates to a spray nozzle and a humidifier equipped with the spray nozzle.
  • the spray nozzle generates a mist by mixing and injecting air into water, and generates a large amount of fine mist with a small amount of air and a water droplet at the nozzle. This is a spray nozzle that prevents water from sticking and does not cause dripping.
  • a humidifier has been used to maintain the required humidity.
  • the humidity is sprayed from a spray nozzle (hereinafter abbreviated as a nozzle) equipped in the humidifier.
  • a spray nozzle hereinafter abbreviated as a nozzle
  • a gas-liquid mixed liquid obtained by mixing a gas made of pressurized air and a liquid made of water is sprayed at a required pressure, and water droplets to be sprayed are atomized.
  • pressurized air so that it is required to consume energy and suppress the energy consumption.
  • it is also required to prevent water droplets ejected from the nozzle from adhering to the periphery of the nozzle and causing dripping.
  • the applicant of Japanese Patent Application Laid-Open No. Hei 5-79664 can reduce the amount of water stored in the water storage chamber of the humidifier as much as possible and always supply fresh water from a water pipe.
  • the present invention provides a humidifier that can suppress the generation and growth of bacteria by 100%.
  • the humidifier is equipped with a spray nozzle nozzle 110 having a pair of opposed nozzle holes 100 and 101, and mists sprayed from the nozzle nozzles 100 and 101 arranged opposite to each other are caused to collide with each other. , Water droplets are atomized.
  • this humidifier has various advantages, there is room for improvement. That is, when the gas-liquid mixture is sprayed from the nozzles 100 and 101, if the amount of pressurized air to be supplied is reduced to reduce the energy consumption, the fog becomes rough and water droplets are likely to adhere to the periphery of the nozzle. If the water droplets adhering to the peripheral edges of the nozzle holes 100 and 101 are left without being removed, there is a problem that the water droplets drop off.
  • the present invention is intended to solve the above problem, while reducing the supply amount of pressurized air and generating a large amount of fine mist to save energy, making it difficult for water droplets to adhere to the periphery of the nozzle hole, It is an object of the present invention to provide a spray nozzle that does not cause dripping from the periphery of the nozzle hole, and a humidifier equipped with the spray nozzle.
  • a first nozzle hole disposed at the tip of the nozzle body on the central axis of the nozzle body, and a second nozzle that projects from the first nozzle nozzle toward the spray side and is inclined to face each other toward an extension line of the central axis.
  • the second nozzle hole and the third nozzle hole are circular, and the first nozzle hole is an ellipse or an ellipse,
  • the gas-liquid mixed fluid jetted from the second jet nozzle and the third jet nozzle collides with the gas jetted from the first jet nozzle on the central axis to atomize water droplets, and jetted from the second and third jet nozzles
  • a spray nozzle characterized in that a water droplet to be blown off is blown away with air jetted from the first nozzle hole.
  • a mist of a gas-liquid mixed fluid obtained by mixing water and pressure air ejected from the second and third nozzles arranged opposite to each other is caused to collide with the pressure air ejected from the first nozzle and ultrasonic waves are generated at the time of the collision.
  • the first nozzle hole is an elliptical or elliptical nozzle
  • the second by the pressure air injected from the first nozzle the water droplets sprayed from the third nozzle is blown away in the direction perpendicular to the spray direction, the second, Water droplets are blown away in a direction away from the periphery of the third nozzle hole.
  • water droplets ejected from the second and third nozzle holes can be prevented from adhering to the periphery of the nozzle holes by the pressure air ejected from the first nozzle hole, and the occurrence of dripping from the second and third nozzle edges can be prevented.
  • the pressure air injected from the first nozzle located at the central axis of the nozzle body collides with the first.
  • the water droplets can be made finer than the conventional example, and a large amount of mist can be generated.
  • a large amount of fine mist can be generated by ultrasonic vibration by increasing the pressure of the pressure air injected from the first to third nozzles or by causing the pressure air to collide from three directions without increasing the pressure air injection amount. Can be generated.
  • the amount of pressurized air to be supplied can be reduced, the amount of energy consumption can be reduced, and water droplets can be prevented from adhering to the peripheral edges of the second and third nozzles that inject water as described above.
  • the second and third nozzles both externally mix the pressure air injected from the annular air nozzle surrounding the central water nozzle, around the water jetted from the circular central water nozzle,
  • the first nozzle hole is in the shape of an ellipse or an ellipse whose length is in a direction perpendicular to a linear direction connecting the second nozzle hole and the third nozzle hole arranged to face each other.
  • the first nozzle hole has an elliptical or elliptical shape with the length extending in the direction of extension of the central axis of the nozzle body, that is, the direction orthogonal to the injection direction of the second nozzle hole and the third nozzle hole.
  • the gas-liquid mixed fluid consisting of water and pressure air, that is, the second and third nozzles that inject mist, mix water and pressure air externally to suppress clogging at the nozzle. is doing.
  • the first direction is orthogonal to the straight line connecting the second and third injection holes arranged opposite to each other in the longitudinal direction, that is, the first The second and third injection holes are orthogonal to the injection direction.
  • the relationship between the hole length (HL) in the long dimension of the first nozzle hole and the hole width (HW) in the short dimension is such that the hole length / hole width (HL / HW) is 1.2 or more and less than 2.0
  • the first, second, and third nozzle holes are provided at the top surface portion of each conical injection section provided in the nozzle body, and the first nozzle is a base end of the cone injection section of the second and third nozzle holes. It is preferable to protrude toward the collision point side from a straight line connecting the portions.
  • the compressed air is strongly collided with the center of the spray from the two opposite directions to effectively generate the ultrasonic wave, and the atomization is performed.
  • the present inventor has found from experiments that it is possible to accelerate and generate a large amount of fog.
  • the angle formed by the center line of the first nozzle hole and the center line of the second nozzle hole with the collision point as a fulcrum is equal to the angle formed by the center line of the first nozzle hole and the center line of the third nozzle hole.
  • the angle ⁇ 1 is set to 90 ° to 40 °, preferably 70 ° to 60 °. It is preferable that the distance L1 between the second and third nozzle holes and the collision point is equal, and the distance L2 between the first nozzle hole and the collision point is L1 ⁇ 1.0 to 2.0.
  • the spray sprayed from the second nozzle hole and the third nozzle hole is caused to collide with the angle, and the second nozzle hole and the third nozzle hole are caused to collide by injecting the pressure air from the first nozzle hole at equal angular intervals toward the collision point.
  • the mist injected from the 2nd, 3rd nozzle hole, and the pressure air from the 1st nozzle hole can collide equally, and atomization of the water droplet during spraying can be performed equally.
  • it is possible to further atomize water droplets by causing ultrasonic waves to be generated at the time of collision by causing the spray from two directions and the pressurized air from one central direction to collide at one point at the angle. The person discovered by experiment.
  • the spray distance is shortened and water droplets are likely to adhere to the periphery of the nozzle, but the first nozzle is an ellipse or an ellipse,
  • the water droplets from the third nozzle hole are not blown back to the second and third nozzle holes by the pressure air injected from the first nozzle hole, and are blown away in the direction away from each other, so that the water droplets adhere to the peripheral edges of the second and third nozzle holes. Can be prevented.
  • the gas-liquid mixed fluid jetted from the second and third nozzles is a gas-liquid mixed fluid jetted from the second and third nozzles with a water pressure of 0 to 0.5 MPa and an air pressure of 0 to 1.0 MPa.
  • the air-to-water ratio (air / water) is 200-2000,
  • the amount of air supplied from the second and third nozzles is less than 10 NL / min, the amount of air supplied from the first nozzle is increased from the amount of air supplied from the second and third nozzles,
  • the amount of air supplied from the second and third nozzles is 10 NL / min or more, the amount of air supplied from the first nozzle is preferably equal to or less than the amount of air supplied from the second and third nozzles. .
  • one main gas passage provided in the nozzle body is branched into three branch gas passages on the injection side and is distributed to the first, second and third nozzles, and is provided in the nozzle body.
  • a branched liquid passage that branches one liquid passage or one main liquid passage into two on the injection side is circulated to the second and third nozzles.
  • the pressurized air supplied to the gas passage is supplied from a compressor, and the water supplied to the liquid passage is preferably tap water or pure water.
  • the amount of air supplied from the second and third nozzles is as small as less than 10 NL / min, water droplets easily adhere to the peripheral edges of the second and third nozzles, and the first nozzle Since it is preferable to increase the amount of air supplied from the first injection port to increase the amount of fog generated at the collision point, the amount of pressure air injected from the first injection port is larger than the amount of pressure air injected from the second and third injection ports. It is preferable to do.
  • the adjustment of the amount of air supplied to the first, second, and third nozzles is, for example, a branch gas passage that communicates with the first nozzle with a large spray nozzle and a small spray nozzle, the first, second, and second nozzles.
  • the cross-sectional areas of the three nozzles are different.
  • a humidifier provided with the spray nozzle of the first invention accommodates a float in a casing forming a water storage chamber, removably attaches a plurality of the spray nozzles at intervals to the outer periphery of a lid member that closes the opening of the casing,
  • the lid member is provided with a gas passage for supplying air to the spray nozzles and a liquid passage for supplying water.
  • the lid member is provided with a water stop valve connected to a water stop lever that opens and closes as the float moves up and down, and the water stop valve is configured to open and close a hemispherical valve seat with a hemispherical rubber component. It is preferable that
  • one collision point on the extension of the central axis of the first nozzle for injecting the mist of the gas-liquid mixed fluid injected from the second and third nozzles into the pressurized air.
  • water droplets being sprayed can be atomized with ultrasonic waves, and a large amount of mist can be generated.
  • the amount of pressurized air can be reduced, and energy saving can be achieved.
  • the 1st nozzle hole which injects pressure air is made into an ellipse or an ellipse shape, it does not blow back the water droplet injected from the 2nd, 3rd nozzle hole, but a water droplet adheres to the periphery of this 2nd, 3rd nozzle hole. It is possible to prevent water dripping from the peripheral edges of the second and third nozzle holes.
  • the humidifier of 2nd invention equips with the spray nozzle of said 1st invention, it can reduce the energy which driving
  • the humidifier can reliably prevent dripping of water from the nozzle nozzle.
  • FIG. 1 It is a top view of the spray nozzle of the 1st invention. It is a front view of the spray nozzle. It is a bottom view of the spray nozzle. It is a side view of the spray nozzle.
  • (A) is a front view which shows the dimension and angle of the said spray nozzle
  • (B) is a schematic sectional drawing which shows the gas channel
  • the humidifier of 2nd invention is shown, (A) is a top view, (B) is sectional drawing, (C) is drawing which shows the injection state of the fluid from a 1st, 2nd, 3rd nozzle. It is a perspective view which shows the usage example of the said humidifier. It is drawing which shows a prior art example.
  • the spray nozzle 1 (hereinafter abbreviated as “nozzle 1”) is provided with a first injection nozzle 3 at the tip of the injection side on the central axis (S1) of the nozzle body 2 made of a resin molded product, A second nozzle 4 and a third nozzle 5 are provided at positions projecting from the nozzle 3 to the injection side (X).
  • the second nozzle hole 4 and the third nozzle hole 5 are symmetric with respect to the central axis (S1) as a support shaft.
  • branch portions 2d and 2e are provided so as to project outwardly from both sides of the ejection side end surface 2s of the nozzle body 2 to the ejection side, and the distal ends of the respective branch portions 2d and 2e are on an extension line of the central axis (S1).
  • refracting portions 2f and 2g that are refracted in the direction of diameter reduction in the opposite direction.
  • Conical portions 2f1 and 2g1 are provided at the injection-side tips of the refracting portions 2f and 2g, the second nozzle 4 is provided at the tip of one refracting portion 2f, and the third nozzle 5 is provided at the tip of the other refracting portion 2g. ing.
  • two liquid passages 7A and 7B through which water flows and a gas passage 8 through which pressurized air flows are provided in the nozzle body 2.
  • the two liquid passages 7A and 7B communicate with a liquid supply port 7a that opens on the base end surface 2k of the nozzle body 2, and the liquid passage 7A reaches the second injection port 4 from the branch portion 2d through the refracting portion 2f.
  • the liquid passage 7B reaches the third nozzle hole 5 from the branch part 2e through the refracting part 2g.
  • the gas passage 8 branches the main gas inflow passage 8b communicated with the gas supply port 8a in three directions, the branch passage 8c communicating with the first injection port 3, the branch passage 8d communicating with the second injection port 4, and the third injection port 5 Is provided with a branch passage 8e communicating with the.
  • the gas supply port 8 a is located at the center of the base end surface 2 k of the nozzle body 2 and has a filter 9 attached thereto. From the second nozzle hole 4 and the third nozzle hole 5, water and pressure air respectively supplied from the liquid passage 7 and the gas passage 8 are externally mixed by injecting pressure air from the outer periphery around water. It is ejected as a liquid mixture fluid (mist).
  • the insert sleeve 10 shown in FIG. 6 is fitted to the outer cylinder portion 2h provided at the center of the injection side of the nozzle body 2, and the tip portion of the insert sleeve 10 provided with the first injection port 3 is the outer cylinder. It protrudes from the part 2h, and the pressure air is injected from the first nozzle 3. Also, insert sleeves 11 and 12 shown in FIGS. 8B and 8C are inserted into the outer cylindrical portion formed of the refracting portions 2f and 2g, and the second nozzle hole 4 and the third nozzle hole are inserted at the tips of the insert sleeves 11 and 12, respectively. Water injection ports 4 a and 5 a that open at the center of 5 are provided.
  • a pressure air passage is provided between the outer peripheral surfaces of the insert sleeves 11 and 12 and the inner peripheral surfaces of the refracting portions 2f and 2g, and the water injection ports 4a and 5a are opened at the center of the second and third injection ports 4 and 5.
  • Pressure air injection ports 4b and 5b are provided on the outer periphery.
  • the insert sleeve 10 provided with the first injection hole 3 for injecting the pressurized air has an elongated cylindrical shape, and is provided with a central gas flow path 10a communicating with the branch passage 8c of the nozzle body 2.
  • a conical injection side portion 10b having a circular arc surface at the tip is provided on the injection side of the insert sleeve 10, a diametric groove 10c is cut out at the tip of the conical injection side portion 10b, and a central portion of the groove 10c is formed as a central gas.
  • a first injection hole 3 having an oval shape shown in FIG. 6C is provided in communication with the flow path 10a.
  • the first nozzle hole 3 having the elliptical shape is an ellipse having a long dimension in a direction Y ⁇ b> 2 orthogonal to the linear direction Y ⁇ b> 1 that connects the second nozzle hole 4 and the third nozzle hole 5 that face each other. Yes.
  • An elliptical shape may be used instead of the ellipse.
  • a first nozzle hole is formed from a straight line L5 connecting a conical portion 2f1 in which the second nozzle hole 4 is provided on the top surface portion and a base end portion of the cone portion 2g1 in which the third nozzle port 5 is provided on the top surface portion. 3 is projected to the collision point (P) side.
  • the relationship between the hole length (HL) in the long dimension and the hole width (HW) in the short dimension of the oval first injection hole 3 is the hole length / hole width.
  • (HL / HW) is 1.2 or more and less than 2.0.
  • the center axis (S2) of the second nozzle hole 4 and the center axis (S3) of the third nozzle hole 5 are inclined toward the extension line on the injection side (X) of the center axis (S1) of the nozzle body 2, and the second nozzle 4.
  • the mists K1 and K2 jetting oppositely from the third nozzle hole 5 are caused to collide at a collision point (P) on an extension line of the central axis (S1) of the nozzle body 2.
  • the pressure air ejected from the first nozzle 3 is collided with the mists K1 and K2 of the gas-liquid mixed fluid ejected from the second nozzle 4 and the third nozzle 5.
  • the angle ⁇ 1 between the center axis (S1) and the center axis (S2) of the second nozzle 4 with the collision point (P) as a fulcrum is 40 ° to 90 °.
  • the angle between the central axis (S1) and the central axis (S3) of the third nozzle hole 5 with the collision point (P) as a fulcrum is the same as the angle ⁇ 1. Therefore, the angle ⁇ 2 formed by the central axes (S2) and (S3) is set to 80 ° to 180 °.
  • the distance L1 from the tip points of the second and third nozzle holes 4 and 5 to the collision point (P) is shorter than the distance L2 from the tip point of the first nozzle hole 3 to the collision point (P).
  • the gas-liquid mixed fluid ejected from the second and third nozzle holes 4 and 5 has a water pressure of 0 to 0.5 MPa and a pressurized air of 0 to 1.0 MPa.
  • the air-water ratio (air / water) of the gas-liquid mixed fluid to be ejected is set to 200-2000.
  • the pressure air injected from the first nozzle 3 and the gas-liquid mixed fluid (mists K1, K2) injected from the second and third nozzles 4, 5 are supplied to the nozzle body 2 and Colliding at one collision point (P) on the extension line of the central axis (S1) of the first nozzle hole 3.
  • the mist from the opposing direction of the second and third nozzle holes 4 and 5 is collided, and the pressurized air from the first nozzle hole 3 is injected into the center of the collision part to collide with the ultrasonic wave at the collision point (P).
  • mists K1 and K2 that collide and mix by injecting only the pressure air from the first nozzle 3 having the oval shape toward the collision points of the mists K1 and K2 that are injected from the second and third nozzles.
  • the nozzle 1 of the present invention is provided with a large nozzle that generates a large amount of mist, a medium-sized nozzle that generates less mist than the large nozzle, and a small nozzle.
  • a small nozzle is used, 10 to 20 NL / min is a medium nozzle, and 20 NL / min or more is a large nozzle.
  • the total amount of pressurized air supplied to the nozzle 1 is less than 30 NL / min, and the total amount of water supplied is less than 3.3 L / hr.
  • the amount of pressure air Qa3 injected from the first injection port 3 is made larger than the amount of pressure air Qa1 injected from the second injection port 4 and the amount of pressure air Qa2 injected from the third injection port 5.
  • the total amount of pressurized air supplied to the nozzle 1 is 30 NL / min or more and less than 40 NL / min, and the total amount of water supply is 2.5 L / hr or more and less than 4 L / hr.
  • the pressure air amounts Qa3, Qa1, and Qa2 injected from the first, second, and third nozzle holes 3, 4, and 5, respectively, are set to substantially the same amount.
  • the total amount of pressurized air supplied to the nozzle 1 is 40 NL / min or more, and the total amount of water supply is 4 L / hr or more.
  • the pressure air amount Qa3 injected from the first injection port 3 is made smaller than the pressure air amount Qa1 injected from the second injection port 4 and the pressure air amount Qa2 injected from the third injection port 5.
  • the amount of pressurized air and the amount of water supplied by the small nozzle, the medium nozzle, and the large nozzle are different.
  • the amount of fog generated at the collision point (P) can be secured to a required amount, and water droplets on the peripheral edges of the second and third nozzles 4 and 5 can be secured. Adhesion could be reliably prevented.
  • the generation of fog in the collision part can be increased.
  • the adhesion of water droplets to the second and third nozzle holes 4 and 5 can be reliably prevented by the pressure air injected from the first nozzle hole 3.
  • the injection amount of the pressurized air from the second and third nozzle holes 4 and 5 is large, the injection amount of the pressurized air from the first nozzle hole 3 is made smaller than that of the second and third nozzle holes 4 and 5.
  • the amount of fog generated at the collision portion can be increased and adhesion of water droplets to the peripheral edges of the second and third nozzle holes 4 and 5 can be prevented.
  • the amount of pressurized air injected from the first nozzle 3 the total amount of pressurized air does not become excessive, and the energy cost can be suppressed.
  • FIGS. 8 and 9 show an embodiment of the humidifier 20 provided with the nozzle 1.
  • the structure of a humidifier is not limited to the said embodiment, What is necessary is just to provide the nozzle 1 of 1st invention.
  • the humidifier 20 includes a casing 21, a lid member 22, and a nozzle 1 that is attached to and detached from the lid member 22. Since the nozzle 1 uses the nozzle of the first embodiment, description of the nozzle structure is omitted.
  • the humidifier 20 includes a cover member 22 that closes the upper surface opening of the casing 21, and four nozzles 1 are attached to the outer periphery of the cover member 22 with an interval of 90 degrees.
  • the number of nozzles attached to the humidifier is not limited and may be one.
  • the casing 21 has a substantially cylindrical shape in which a float 25 is accommodated, and an upper surface opening thereof is closed by the lid member 22.
  • the casing 21 has a peripheral wall 21a inclined in the direction of diameter reduction toward the bottom wall 21b, and an inner surface of the bottom wall 21b is inclined downward toward the center, and a liquid reservoir 26 is provided at the lowermost end of the center.
  • ribs 21d are provided in the inner surface of the peripheral wall 21a so as to project in the circumferential direction, and the float 25 moves up and down along the inner peripheral surface of the rib 21d.
  • the float 25 has a shape with a slight gap between the rib 21d and the bottom wall 21b, and a through hole 25a that opens up and down is provided at the center of the float 25 corresponding to the liquid reservoir 26 at the lowermost end.
  • a liquid absorption pipe 22e protruding downward is provided at the center of the lid member 22, the liquid absorption pipe 22e is passed through the through hole 25a of the float 25, and the lower end is opened to the liquid reservoir 26. Is sucking.
  • the upper end of the liquid suction pipe 22e is branched in four directions, and the branch passage 22f communicates with the liquid passage 7 of the nozzle 1.
  • a gas supply pipe connecting part 22g is provided on the upper side corresponding to the liquid suction pipe 22e at the center part of the cover member 22 and its lower end is branched in four directions.
  • the branch path 22h is connected to the gas path 8 of the nozzle 1. Communicate.
  • a water supply pipe connecting part 22i for connecting the water supply pipe 40 is provided on one side of the lid member 22, and a housing part 22j for the water stop valve 29 is provided below the water supply pipe connecting part 22i.
  • a hemispherical valve seat 22k is provided between the water supply pipe connecting portion 22i and the accommodating portion 22j. In addition, you may interpose a strainer in the said water supply pipe connection part 22i.
  • the water stop valve 29 housed in the housing portion 22j includes a rubber hemispherical valve body 29a that opens and closes the valve seat 22k, and the lower end of the water stop valve 29 is fixed to the water stop lever 30.
  • the water stop lever 30 is a straight lever, and a fulcrum 30a at one end thereof is rotatably attached to the lower end of the accommodating portion 22j, and a protruding portion 30b provided upward in the vicinity of the fulcrum 30a is provided as the water stop lever.
  • the valve 29 is in contact with the lower end.
  • a hole 30c is formed in the center of the water stop lever 30 to allow the liquid absorption pipe 22e to pass therethrough.
  • the water stop lever 30 is disposed along the upper surface of the float 25, and a contact provided downward on the protruding end of the water stop lever 30. A portion 30d is provided.
  • the downward contact portion 30d of the water stop lever 30 is in contact with the upper surface of the float 25.
  • the water stop valve 29 having its lower end fixed to the water stop lever 30 is lowered and the valve seat 22k is opened to enter a water supply state.
  • the float 25 is raised, and the contact portion 30d is pushed up, the water stop valve 29 is also raised to close the valve seat 22k and stop water supply.
  • the push-up force of the water stop valve 29 is strengthened by the principle of leverage.
  • the gas supply pipe connecting portion 22g that communicates with the gas supply pipe 50 is provided at the center of the lid member 22, and the lower end of the gas supply pipe connecting portion 22g is branched into four directions to provide a branch passage 22h. It communicates with the passage 8.
  • the humidifier 20 to which the nozzle 1 is attached at an interval of 90 degrees is suspended from the pressure air introduction pipe 51 at a required interval as shown in FIG. Further, the water supply pipe 40 is suspended from the water introduction pipe 41 with a required interval.
  • the pressure air supplied to the pressure air branch passage 22 h provided in the lid member 22 flows into the gas passage 8 of the nozzle 1.
  • the negative pressure of the pressure air flowing into the branch passage 22h is introduced into the branch passage 22f, water is sucked up from the center of the bottom of the water storage chamber 32 by the liquid suction pipe 22e, and liquid is supplied to the liquid passage 7 of the nozzle 1 through the branch passage 22f. Inflow.
  • the liquid injected from the centers of the second and third nozzle holes 4 and 5 is externally mixed by injecting the pressure air from the outer periphery, and atomized by the shearing action of the pressure air.
  • the pressure air is injected from the first nozzle 3.
  • the fluid jetted from three directions is collided at the external collision point (P) to generate ultrasonic waves, further micronize and homogenize the droplets, and generate a large amount of fog.
  • the pressure and air pressure are set in the range of 0 to 1 MPa, and the water pressure is set in the range of 0 to 0.5 MPa.
  • the float 25 constantly moves up and down during spraying, operates the water stop lever 30 and the water stop valve 29 to intermittently supply water, and supplies new water to the water storage chamber 32. Yes. Further, the float 25, the water stop lever 30 and the water stop valve 29 are operated stably and accurately. That is, the float 25 moves up and down straight, with the liquid guide tube 22e at the center and the outer periphery guided by the guide rib 21d of the casing.
  • the humidifier 20 can always spray fresh water, and by mounting the nozzle 1, it can generate a large amount of mist even if the amount of pressurized air supplied is reduced, thus reducing running costs. Can be achieved.

Abstract

The present invention provides a nozzle wherein adherence of water droplets around nozzle openings is prevented and a large quantity of mist is generated. The spray nozzle is provided with a first nozzle opening (3) disposed on a spray side tip above the center axial line of a nozzle main body (2) and a second nozzle opening (4) and a third nozzle opening (5) protruding more to the spray side than the first nozzle opening (3) and opposingly disposed at an incline so as to face each other toward the center axial line. The second and third nozzle openings (4, 5) are made round, and the first nozzle opening (3) is given an elongated circle or elliptical shape. A gas-liquid mixed fluid sprayed from the second and third nozzle openings (4, 5) and a gas sprayed from the first nozzle opening are made to collide above the center axial line (P) and ultrasonic waves are generated by the collision, thereby generating a large volume of fine mist.

Description

スプレーノズルおよび該スプレーノズルを備えた加湿器Spray nozzle and humidifier equipped with the spray nozzle
　本発明は、スプレーノズルおよび該スプレーノズルを備えた加湿器に関し、水に空気を混合噴射して霧を発生させるスプレーノズルにおいて、少ない空気量で微細な霧を大量に発生させると共に、噴口に水滴が付着するのを防止し水垂れが発生しないスプレーノズルとするものである。 The present invention relates to a spray nozzle and a humidifier equipped with the spray nozzle. The spray nozzle generates a mist by mixing and injecting air into water, and generates a large amount of fine mist with a small amount of air and a water droplet at the nozzle. This is a spray nozzle that prevents water from sticking and does not cause dripping.
　従来より、工業用、農業用を含めてあらゆる分野において、所要の湿度に保持するために加湿器が用いられ、該加湿器に装備したスプレーノズル（以下、ノズルと略称する）から噴霧して湿度を保つようにしている。該加湿用のノズルからは、圧力空気からなる気体と水からなる液体とを混合した気液混合液を所要圧力で噴霧し、噴霧する水滴を微粒化している。このように、ノズルからの噴霧を微粒化すると共に噴霧範囲を広げるためには、圧力空気を供給する必要があるためエネルギーを消費し、該エネルギーの消費量を抑制することが求められている。かつ、噴口から噴射する水滴が噴口周縁に付着して水垂れが生じるのを防止することも求められている。 Conventionally, in all fields including industrial and agricultural uses, a humidifier has been used to maintain the required humidity. The humidity is sprayed from a spray nozzle (hereinafter abbreviated as a nozzle) equipped in the humidifier. Keep trying. From the humidifying nozzle, a gas-liquid mixed liquid obtained by mixing a gas made of pressurized air and a liquid made of water is sprayed at a required pressure, and water droplets to be sprayed are atomized. Thus, in order to atomize the spray from the nozzle and widen the spray range, it is necessary to supply pressurized air, so that it is required to consume energy and suppress the energy consumption. In addition, it is also required to prevent water droplets ejected from the nozzle from adhering to the periphery of the nozzle and causing dripping.
　この種の加湿器として、本出願人は特開平５－７９６６４号公報において、加湿器の貯水室に溜めておく水を可能な限り少なくし、常時、水道管より新鮮な水を供給することで、細菌の発生、増殖を１００％抑えることができる加湿器を提供している。
　該加湿器には、図１０に示すように、対向配置した一対の噴口１００と１０１を備えたスプレーノズルノズル１１０を装着し、前記対向配置した噴口１００と１０１から噴射する霧同士を衝突させて、水滴を微粒化している。 As a humidifier of this type, the applicant of Japanese Patent Application Laid-Open No. Hei 5-79664 can reduce the amount of water stored in the water storage chamber of the humidifier as much as possible and always supply fresh water from a water pipe. The present invention provides a humidifier that can suppress the generation and growth of bacteria by 100%.
As shown in FIG. 10, the humidifier is equipped with a spray nozzle nozzle 110 having a pair of opposed nozzle holes 100 and 101, and mists sprayed from the nozzle nozzles 100 and 101 arranged opposite to each other are caused to collide with each other. , Water droplets are atomized.
　この加湿器は種々の利点を有するものであるが、改良の余地がある。即ち、噴口１００と１０１とから気液混合液を噴霧する際、供給する圧力空気量を低減してエネルギー消費量を減少すると、霧が粗くなり噴口周辺に水滴が付着しやすくなる。この噴口１００、１０１の周縁に付着した水滴を除去せずに付着した状態のままにすると、水滴がボタ落ちする問題が発生する。 Although this humidifier has various advantages, there is room for improvement. That is, when the gas-liquid mixture is sprayed from the nozzles 100 and 101, if the amount of pressurized air to be supplied is reduced to reduce the energy consumption, the fog becomes rough and water droplets are likely to adhere to the periphery of the nozzle. If the water droplets adhering to the peripheral edges of the nozzle holes 100 and 101 are left without being removed, there is a problem that the water droplets drop off.
特開平５－７９６６４号公報JP-A-5-79664
　本発明は、前記問題を解消せんとするもので、圧力空気の供給量を低減しながら微細な霧を大量に発生できるようにして省エネルギー化を図ると共に、噴口周縁に水滴が付着しにくくし、噴口周縁から水垂れを発生させないスプレーノズル、および該スプレーノズルを備えた加湿器を提供することを課題としている。 The present invention is intended to solve the above problem, while reducing the supply amount of pressurized air and generating a large amount of fine mist to save energy, making it difficult for water droplets to adhere to the periphery of the nozzle hole, It is an object of the present invention to provide a spray nozzle that does not cause dripping from the periphery of the nozzle hole, and a humidifier equipped with the spray nozzle.
　前記課題を解決するため、第一の発明として、
　ノズル本体の中心軸線上の噴射側先端に配置する第一噴口と、該第一噴口より噴射側に突出すると共に前記中心軸線の延長線に向けて互いに向き合うように傾斜させて対向配置する第二噴口と第三噴口を備え、
　前記第二噴口および第三噴口は円形とすると共に、前記第一噴口は長円または楕円形状とし、　
　前記第二噴口および第三噴口から噴射する気液混合流体と前記第一噴口から噴射する気体とを前記中心軸線上で衝突させて水滴を微粒化し、かつ、前記第二、第三噴口から噴射する水滴を前記第一噴口から噴射する空気で吹き飛ばす構成としていることを特徴とするスプレーノズルを提供している。 In order to solve the above problems, as a first invention,
A first nozzle hole disposed at the tip of the nozzle body on the central axis of the nozzle body, and a second nozzle that projects from the first nozzle nozzle toward the spray side and is inclined to face each other toward an extension line of the central axis. It has a nozzle and a third nozzle,
The second nozzle hole and the third nozzle hole are circular, and the first nozzle hole is an ellipse or an ellipse,
The gas-liquid mixed fluid jetted from the second jet nozzle and the third jet nozzle collides with the gas jetted from the first jet nozzle on the central axis to atomize water droplets, and jetted from the second and third jet nozzles There is provided a spray nozzle characterized in that a water droplet to be blown off is blown away with air jetted from the first nozzle hole.
　本発明では、対向配置する第二、第三噴口から噴射する水と圧力空気とを混合した気液混合流体の霧を、第一噴口から噴射する圧力空気と衝突させ、該衝突時により超音波を発生させて微細な霧を大量に発生させている。かつ、第一噴口を長円形状または楕円形状の噴口として、該第一噴口から噴射する圧力空気により第二、第三噴口から噴射される水滴を噴霧方向と直交方向に吹き飛ばし、該第二、第三噴口の周縁から離れる方向に水滴を吹き飛ばしている。このように、第二、第三噴口から噴射する水滴が噴口周縁に付着するのを第一噴口から噴射する圧力空気で防止でき、第二、第三噴口周縁からの水垂れ発生を防止できる。 In the present invention, a mist of a gas-liquid mixed fluid obtained by mixing water and pressure air ejected from the second and third nozzles arranged opposite to each other is caused to collide with the pressure air ejected from the first nozzle and ultrasonic waves are generated at the time of the collision. To generate a large amount of fine mist. And, the first nozzle hole is an elliptical or elliptical nozzle, the second by the pressure air injected from the first nozzle, the water droplets sprayed from the third nozzle is blown away in the direction perpendicular to the spray direction, the second, Water droplets are blown away in a direction away from the periphery of the third nozzle hole. In this way, water droplets ejected from the second and third nozzle holes can be prevented from adhering to the periphery of the nozzle holes by the pressure air ejected from the first nozzle hole, and the occurrence of dripping from the second and third nozzle edges can be prevented.
　前記従来例の図１０に示す従来の対向配置する２つの噴口から噴射する霧を衝突させる場合と比較して、ノズル本体の中心軸線に位置する第一噴口から噴射する圧力空気を前記衝突する第二、第三噴口からの霧と一点で衝突させることで、前記従来例より水滴をより微粒化でき、大量に霧を発生させることができる。言い換えれば、第一～第三噴口から噴射する圧力空気の圧力を上げたり、圧力空気の噴射量を増大させることなく、圧力空気を三方から衝突させることで、超音波振動で微細な霧を大量に発生させることができる。その結果、供給する圧力空気量を低減でき、エネルギーの消費量を低減でき、かつ、前記のように水を噴射する第二、第三噴口周縁の水滴付着を防止できる。 Compared with the case where the mist sprayed from the two oppositely arranged nozzles shown in FIG. 10 of the conventional example collides, the pressure air injected from the first nozzle located at the central axis of the nozzle body collides with the first. By colliding with the mist from the second and third nozzle holes at a single point, the water droplets can be made finer than the conventional example, and a large amount of mist can be generated. In other words, a large amount of fine mist can be generated by ultrasonic vibration by increasing the pressure of the pressure air injected from the first to third nozzles or by causing the pressure air to collide from three directions without increasing the pressure air injection amount. Can be generated. As a result, the amount of pressurized air to be supplied can be reduced, the amount of energy consumption can be reduced, and water droplets can be prevented from adhering to the peripheral edges of the second and third nozzles that inject water as described above.
　前記第二、第三噴口はいずれも円形の中央水噴口から噴射する水の回りに、前記中央水噴口を囲む円環状空気噴口から噴射する圧力空気を外部混合し、
　前記第一噴口は、対向配置する前記第二噴口と第三噴口とを結ぶ直線方向と直交する方向を長寸とした長円または楕円形状としている。
　このように、第一噴口はノズル本体の中心軸線の延長方向、即ち、第二噴口および第三噴口の噴射方向と直交方向を長寸とする長円または楕円形状としている。 The second and third nozzles both externally mix the pressure air injected from the annular air nozzle surrounding the central water nozzle, around the water jetted from the circular central water nozzle,
The first nozzle hole is in the shape of an ellipse or an ellipse whose length is in a direction perpendicular to a linear direction connecting the second nozzle hole and the third nozzle hole arranged to face each other.
As described above, the first nozzle hole has an elliptical or elliptical shape with the length extending in the direction of extension of the central axis of the nozzle body, that is, the direction orthogonal to the injection direction of the second nozzle hole and the third nozzle hole.
　前記のように、水と圧力空気とからなる気液混合流体、即ち、霧を噴射する第二、第三噴口では、水と圧力空気とを外部混合して、噴口での目詰まり発生を抑制している。かつ、圧力空気のみを噴射する長円または楕円形状の第一噴口では、前記のように、その長寸方向を対向配置する第二、第三噴口を結ぶ直線に対して直交方向、即ち、第二、第三噴口からの噴射方向と直交方向としている。これにより、第一噴口からの圧力空気により、第二、第三噴口から噴射する水滴が該第二、第三噴口の周縁に吹き返されて周縁に付着するのを防止し、第二、第三噴口の周縁から水滴を離れる方向に吹き飛ばして水滴の付着を確実に防止している。 As described above, the gas-liquid mixed fluid consisting of water and pressure air, that is, the second and third nozzles that inject mist, mix water and pressure air externally to suppress clogging at the nozzle. is doing. In addition, as described above, in the elliptical or elliptical first injection hole that injects only the pressure air, as described above, the first direction is orthogonal to the straight line connecting the second and third injection holes arranged opposite to each other in the longitudinal direction, that is, the first The second and third injection holes are orthogonal to the injection direction. This prevents water droplets ejected from the second and third nozzles from being blown back to the periphery of the second and third nozzles by the pressurized air from the first nozzle, and is attached to the periphery. Blowing away water droplets from the periphery of the nozzle hole reliably prevents water droplets from adhering.
　前記第一噴口の長寸方向の孔長（ＨＬ）と短寸方向の孔幅（ＨＷ）との関係を、孔長／孔幅（ＨＬ／ＨＷ）を１．２以上２．０未満とし、かつ、
　前記第一、第二、第三噴口は前記ノズル本体に設けた各円錐状噴射部の頂面部分に設け、前記第一噴口は前記第二噴口と第三噴口の円錐状噴射部の基端部を結ぶ直線より前記衝突点側へ突出していることが好ましい。
　このように、第一噴口を第二、第三噴口に対して近接配置すると、対向する２方向からの噴霧の中心に圧力空気を強く衝突させて効果的に超音波を発生させ、微粒化を促進して大量に霧を発生させることができることを、本発明者は実験より知見した。 The relationship between the hole length (HL) in the long dimension of the first nozzle hole and the hole width (HW) in the short dimension is such that the hole length / hole width (HL / HW) is 1.2 or more and less than 2.0, And,
The first, second, and third nozzle holes are provided at the top surface portion of each conical injection section provided in the nozzle body, and the first nozzle is a base end of the cone injection section of the second and third nozzle holes. It is preferable to protrude toward the collision point side from a straight line connecting the portions.
As described above, when the first nozzle hole is arranged close to the second and third nozzle holes, the compressed air is strongly collided with the center of the spray from the two opposite directions to effectively generate the ultrasonic wave, and the atomization is performed. The present inventor has found from experiments that it is possible to accelerate and generate a large amount of fog.
　また、前記衝突点を支点として前記第一噴口の中心線と第二噴口の中心線とが成す角度と、前記第一噴口の中心線と第三噴口の中心線とが成す角度とは同等とすると共、該角度θ１を９０°～４０°、好ましくは７０°～６０°としてる。
　前記第二、第三噴口と前記衝突点までの距離Ｌ１は同等とすると共に、前記第一噴口から前記衝突点間での距離Ｌ２はＬ１×１．０～２．０としていることが好ましい。 Further, the angle formed by the center line of the first nozzle hole and the center line of the second nozzle hole with the collision point as a fulcrum is equal to the angle formed by the center line of the first nozzle hole and the center line of the third nozzle hole. In this case, the angle θ1 is set to 90 ° to 40 °, preferably 70 ° to 60 °.
It is preferable that the distance L1 between the second and third nozzle holes and the collision point is equal, and the distance L2 between the first nozzle hole and the collision point is L1 × 1.0 to 2.0.
　第二噴口と第三噴口から噴射する噴霧を前記角度で衝突させ、かつ、第二噴口と第三噴口と等角度間隔の前記第一噴口から衝突点に向けて圧力空気を噴射して衝突させると、第二、第三噴口から噴射した霧と第一噴口からの圧力空気を均等に衝突させることができ、噴霧中の水滴の微粒化を均等に行うことができる。かつ、前記角度で二方向からの噴霧と中央の一方向からの圧力空気とを１点で衝突させることにより、衝突時に超音波を発生させて水滴の更なる微粒化が図れることを、本発明者は実験により知見した。
　特に、前記第二、第三の噴口からノズル本体の中心軸線に向けて角度９０゜～４０°で噴霧し、その中心の中心軸線上に第一噴口から噴射する圧力空気を衝突させることで、衝突時に発生する超音波により微粒化が促進し、大量の霧を発生できることを本発明者は実験により知見した。
　前記第二、第三の噴口からの噴霧がなす角度が大きくなると、噴霧の飛距離が短くなり、噴口周縁への水滴が付着しやすくなるが、第一噴口を長円または楕円とし、第二、第三噴口からの水滴が第一噴口から噴射する圧力空気で第二、第三噴口側に吹き返されず、離れた方向に吹き飛ばしているため、第二、第三噴口の周縁に水滴が付着するのを防止できる。 The spray sprayed from the second nozzle hole and the third nozzle hole is caused to collide with the angle, and the second nozzle hole and the third nozzle hole are caused to collide by injecting the pressure air from the first nozzle hole at equal angular intervals toward the collision point. And the mist injected from the 2nd, 3rd nozzle hole, and the pressure air from the 1st nozzle hole can collide equally, and atomization of the water droplet during spraying can be performed equally. In addition, according to the present invention, it is possible to further atomize water droplets by causing ultrasonic waves to be generated at the time of collision by causing the spray from two directions and the pressurized air from one central direction to collide at one point at the angle. The person discovered by experiment.
In particular, spraying at an angle of 90 ° to 40 ° from the second and third nozzle holes toward the central axis of the nozzle body, and colliding with pressure air injected from the first nozzle on the central axis of the center, The present inventor has found through experiments that atomization is promoted by ultrasonic waves generated at the time of collision and a large amount of fog can be generated.
When the angle formed by the spray from the second and third nozzles is increased, the spray distance is shortened and water droplets are likely to adhere to the periphery of the nozzle, but the first nozzle is an ellipse or an ellipse, The water droplets from the third nozzle hole are not blown back to the second and third nozzle holes by the pressure air injected from the first nozzle hole, and are blown away in the direction away from each other, so that the water droplets adhere to the peripheral edges of the second and third nozzle holes. Can be prevented.
　前記第二、第三噴口から噴射する気液混合流体は、水圧を０～０．５ＭＰａ、空気圧を０～１．０ＭＰａの範囲とし、前記第二、第三噴口から噴射する気液混合流体の気水比（空気／水）を２００～２０００とし、
　前記第二、第三噴口から噴射する空気供給量が１０ＮＬ／ｍｉｎ未満であると、該第二、第三噴口からの空気供給量より前記第一噴口からの空気供給量を多くし、
　前記第二、第三噴口から噴射する空気供給量が１０ＮＬ／ｍｉｎ以上であると、前記第一噴口からの空気供給量を前記第二、第三噴口からの空気供給量以下とすることが好ましい。 The gas-liquid mixed fluid jetted from the second and third nozzles is a gas-liquid mixed fluid jetted from the second and third nozzles with a water pressure of 0 to 0.5 MPa and an air pressure of 0 to 1.0 MPa. The air-to-water ratio (air / water) is 200-2000,
When the amount of air supplied from the second and third nozzles is less than 10 NL / min, the amount of air supplied from the first nozzle is increased from the amount of air supplied from the second and third nozzles,
When the amount of air supplied from the second and third nozzles is 10 NL / min or more, the amount of air supplied from the first nozzle is preferably equal to or less than the amount of air supplied from the second and third nozzles. .
　本発明のスプレーノズルでは、ノズル本体に設ける１本の主気体通路を噴射側で３本の分岐気体通路に分岐して前記第一、第二、第三噴口へ流通させ、ノズル本体に設ける２本の液体通路または１本の主液体通路を噴射側で２本に分岐した分岐液体通路を前記第二、第三噴口に流通させている。
　気体通路に供給する圧力空気はコンプレッサーから供給し、液体通路に供給する水は水道水または純水が好ましい。 In the spray nozzle according to the present invention, one main gas passage provided in the nozzle body is branched into three branch gas passages on the injection side and is distributed to the first, second and third nozzles, and is provided in the nozzle body. A branched liquid passage that branches one liquid passage or one main liquid passage into two on the injection side is circulated to the second and third nozzles.
The pressurized air supplied to the gas passage is supplied from a compressor, and the water supplied to the liquid passage is preferably tap water or pure water.
　前記のように、第二、第三噴口から噴射する空気供給量が１０ＮＬ／ｍｉｎ以上で噴霧量が多いスプレーノズルの場合には、第二、第三噴口周縁に水滴が付着しにくく、かつ、第一噴口から噴射する空気供給量を少なくしても、衝突点での霧の発生量が多いため、第一噴口より噴射する圧力空気量を第二、第三噴口から噴射する圧力空気量より少なくして、消費エネルギーおよびコストの低減を図ることが好ましい。
　一方、第二、第三噴口から噴射する空気供給量が１０ＮＬ／ｍｉｎ未満と少ない小型のスプレーノズルの場合には、第二、第三噴口周縁に水滴が付着しやすくなり、かつ、第一噴口から噴射する空気供給量を多くして衝突点での霧の発生量を多くすることが好ましいため、第一噴口より噴射する圧力空気量を第二、第三噴口から噴射する圧力空気量より多くすることが好ましい。
　上記第一、第二、第三噴口への供給空気量の調整は、例えば、大型のスプレーノズルと小型のスプレーノズルとで、第一噴口へ連通させる分岐気体通路、第一、第二、第三噴口の断面積を相違させている。 As described above, in the case of a spray nozzle in which the amount of air supplied from the second and third nozzle holes is 10 NL / min or more and the spray amount is large, water droplets are unlikely to adhere to the second and third nozzle edges, and Even if the amount of air supplied from the first nozzle is reduced, the amount of fog generated at the collision point is large, so the amount of pressure air injected from the first nozzle is more than the amount of pressure air injected from the second and third nozzles. It is preferable to reduce the energy consumption and cost.
On the other hand, in the case of a small spray nozzle in which the amount of air supplied from the second and third nozzles is as small as less than 10 NL / min, water droplets easily adhere to the peripheral edges of the second and third nozzles, and the first nozzle Since it is preferable to increase the amount of air supplied from the first injection port to increase the amount of fog generated at the collision point, the amount of pressure air injected from the first injection port is larger than the amount of pressure air injected from the second and third injection ports. It is preferable to do.
The adjustment of the amount of air supplied to the first, second, and third nozzles is, for example, a branch gas passage that communicates with the first nozzle with a large spray nozzle and a small spray nozzle, the first, second, and second nozzles. The cross-sectional areas of the three nozzles are different.
　第二の発明として、前記第一の発明のスプレーノズルを備えた加湿器を提供している。　該加湿器は、貯水室を形成しているケーシング内にフロートを収容すると共に、該ケーシングの開口を閉鎖する蓋材の外周に間隔をあけて複数個の前記スプレーノズルを着脱自在に取り付け、該蓋材に前記各スプレーノズルに空気を供給する気体通路と水を供給する液体通路を設けている。また、前記蓋材には、前記フロートの昇降に応じて開閉する止水レバーに連結した止水弁を取り付け、該止水弁は半球状としたゴム部品で半球状の弁座を開閉する構成としていることが好ましい。 As a second invention, a humidifier provided with the spray nozzle of the first invention is provided. The humidifier accommodates a float in a casing forming a water storage chamber, removably attaches a plurality of the spray nozzles at intervals to the outer periphery of a lid member that closes the opening of the casing, The lid member is provided with a gas passage for supplying air to the spray nozzles and a liquid passage for supplying water. The lid member is provided with a water stop valve connected to a water stop lever that opens and closes as the float moves up and down, and the water stop valve is configured to open and close a hemispherical valve seat with a hemispherical rubber component. It is preferable that
  前述したように、第一の発明のスプレーノズルでは、第二、第三噴口から噴射する気液混合流体の霧を、圧力空気を噴射する第一噴口の中心軸線の延長線上の１つの衝突点で衝突させることにより、超音波で噴霧中の水滴を微粒化して、大量の霧を発生させることができる。このように、霧を大量に発生させるため、圧力空気量を減少させることができ、省エネルギー化を図ることができる。
　かつ、圧力空気を噴射する第一噴口は長円または楕円形状としているため、第二、第三噴口から噴射する水滴を吹き返さず、該第二、第三噴口の周縁に水滴が付着するのを防止して、第二、第三噴口周縁からの水垂れ発生を防止できる。 As described above, in the spray nozzle according to the first aspect of the present invention, one collision point on the extension of the central axis of the first nozzle for injecting the mist of the gas-liquid mixed fluid injected from the second and third nozzles into the pressurized air. By colliding with, water droplets being sprayed can be atomized with ultrasonic waves, and a large amount of mist can be generated. Thus, since a lot of fog is generated, the amount of pressurized air can be reduced, and energy saving can be achieved.
And since the 1st nozzle hole which injects pressure air is made into an ellipse or an ellipse shape, it does not blow back the water droplet injected from the 2nd, 3rd nozzle hole, but a water droplet adheres to the periphery of this 2nd, 3rd nozzle hole. It is possible to prevent water dripping from the peripheral edges of the second and third nozzle holes.
　また、第二の発明の加湿器は、前記第一の発明のスプレーノズルを装着しているため、加湿器の運転に要するエネルギーを低減でき、ランニングコストが低減された加湿器とすることができる。かつ、該加湿器はノズルの噴口からの水垂れを確実に防止することができる。 Moreover, since the humidifier of 2nd invention equips with the spray nozzle of said 1st invention, it can reduce the energy which driving | operation of a humidifier can reduce, and it can be set as the humidifier by which running cost was reduced. . In addition, the humidifier can reliably prevent dripping of water from the nozzle nozzle.
第一の発明のスプレーノズルの平面図である。It is a top view of the spray nozzle of the 1st invention. 前記スプレーノズルの正面図である。It is a front view of the spray nozzle. 前記スプレーノズルの底面図である。It is a bottom view of the spray nozzle. 前記スプレーノズルの側面図である。It is a side view of the spray nozzle. （Ａ）は前記スプレーノズルの寸法および角度を示す正面図、（Ｂ）は前記スプレーノズルの気体通路と液体通路を示す概略断面図である。(A) is a front view which shows the dimension and angle of the said spray nozzle, (B) is a schematic sectional drawing which shows the gas channel | path and liquid channel | path of the said spray nozzle. 前記スプレーノズルの第一噴口を設けるインサートスリーブを示し、（Ａ）は断面図、（Ｂ）は（Ａ）のＢ－Ｂ線断面図、（Ｃ）は（Ａ）の左側面図である。The insert sleeve which provides the 1st nozzle hole of the said spray nozzle is shown, (A) is sectional drawing, (B) is BB sectional drawing of (A), (C) is a left view of (A). 前記スプレーノズルの実施例の各部の数値を示す表である。It is a table | surface which shows the numerical value of each part of the Example of the said spray nozzle. 第二の発明の加湿器を示し、（Ａ）は平面図、（Ｂ）は断面図、（Ｃ）は第一、第二、第三噴口からの流体の噴射状態を示す図面である。The humidifier of 2nd invention is shown, (A) is a top view, (B) is sectional drawing, (C) is drawing which shows the injection state of the fluid from a 1st, 2nd, 3rd nozzle. 前記加湿器の使用例を示す斜視図である。It is a perspective view which shows the usage example of the said humidifier. 従来例を示す図面である。It is drawing which shows a prior art example.
　以下、本発明の実施形態を図面を参照して詳述する。
　図１乃至図６に第一実施形態のスプレーノズルを示す。
　スプレーノズル１（以下、ノズル１と略称する）は、樹脂成形品からなるノズル本体２の中心軸線（Ｓ１）上の噴射側先端に第一噴口３を設け、該第一噴口３を挟むと共に第一噴口３より噴射側（Ｘ）に突出する位置に第二噴口４と第三噴口５とを設けている。該第二噴口４と第三噴口５とは中心軸線（Ｓ１）を支軸として左右対称としている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 6 show a spray nozzle according to the first embodiment.
The spray nozzle 1 (hereinafter abbreviated as “nozzle 1”) is provided with a first injection nozzle 3 at the tip of the injection side on the central axis (S1) of the nozzle body 2 made of a resin molded product, A second nozzle 4 and a third nozzle 5 are provided at positions projecting from the nozzle 3 to the injection side (X). The second nozzle hole 4 and the third nozzle hole 5 are symmetric with respect to the central axis (S1) as a support shaft.
　詳しくは、ノズル本体２の噴射側端面２ｓの両側から噴射側へ外拡がりに突出させた分岐部２ｄ、２ｅを設け、各分岐部２ｄ、２ｅの先端に前記中心軸線（Ｓ１）の延長線上に向けて逆方向の縮径方向へ屈折させた屈折部２ｆ、２ｇを設けている。該屈折部２ｆ、２ｇの噴射側先端に円錐部２ｆ１、２ｇ１を設け、一方の屈折部２ｆの先端に前記第二噴口４を設け、他方の屈折部２ｇの先端に前記第三噴口５を設けている。 Specifically, branch portions 2d and 2e are provided so as to project outwardly from both sides of the ejection side end surface 2s of the nozzle body 2 to the ejection side, and the distal ends of the respective branch portions 2d and 2e are on an extension line of the central axis (S1). There are provided refracting portions 2f and 2g that are refracted in the direction of diameter reduction in the opposite direction. Conical portions 2f1 and 2g1 are provided at the injection-side tips of the refracting portions 2f and 2g, the second nozzle 4 is provided at the tip of one refracting portion 2f, and the third nozzle 5 is provided at the tip of the other refracting portion 2g. ing.
　図５（Ｂ）に示すように、ノズル本体２内に水を流通する２本の液体通路７Ａ、７Ｂと圧力空気を流通する気体通路８を設けている。２本の液体通路７Ａ、７Ｂはそれぞれノズル本体２の基端面２ｋに開口する液体供給口７ａに連通し、液体通路７Ａは分岐部２ｄから屈折部２ｆを通り第二噴口４に達している。液体通路７Ｂは分岐部２ｅから屈折部２ｇを通り第三噴口５に達している。
　気体通路８は気体供給口８ａと連通させた主気体流入路８ｂを３方向に分岐させ、第一噴口３に連通する分岐通路８ｃ、第二噴口４に連通する分岐通路８ｄ、第三噴口５に連通する分岐通路８ｅを設けている。また、図３に示すように、気体供給口８ａはノズル本体２の基端面２ｋの中心に位置しフィルタ９を取り付けている。
　前記第二噴口４と第三噴口５からは、それぞれ液体通路７と気体通路８とから供給される水と圧力空気とを、水を中心として圧力空気を外周から噴射して外部混合し、気液混合流体（霧）として噴射している。 As shown in FIG. 5 (B), two liquid passages 7A and 7B through which water flows and a gas passage 8 through which pressurized air flows are provided in the nozzle body 2. The two liquid passages 7A and 7B communicate with a liquid supply port 7a that opens on the base end surface 2k of the nozzle body 2, and the liquid passage 7A reaches the second injection port 4 from the branch portion 2d through the refracting portion 2f. The liquid passage 7B reaches the third nozzle hole 5 from the branch part 2e through the refracting part 2g.
The gas passage 8 branches the main gas inflow passage 8b communicated with the gas supply port 8a in three directions, the branch passage 8c communicating with the first injection port 3, the branch passage 8d communicating with the second injection port 4, and the third injection port 5 Is provided with a branch passage 8e communicating with the. Further, as shown in FIG. 3, the gas supply port 8 a is located at the center of the base end surface 2 k of the nozzle body 2 and has a filter 9 attached thereto.
From the second nozzle hole 4 and the third nozzle hole 5, water and pressure air respectively supplied from the liquid passage 7 and the gas passage 8 are externally mixed by injecting pressure air from the outer periphery around water. It is ejected as a liquid mixture fluid (mist).
　詳細には、ノズル本体２の噴射側中央部に設けた外筒部２ｈに、図６に示すインサートスリーブ１０を嵌合し、該インサートスリーブ１０の第一噴口３を設けた先端部分を外筒部２ｈより突出させ、該第一噴口３から圧力空気を噴射している。
　また、前記屈折部２ｆ、２ｇからなる外筒部に図８（Ｂ）（Ｃ）に示すインサートスリーブ１１、１２を挿入し、該インサートスリーブ１１、１２の先端に第二噴口４、第三噴口５の中央に開口する水噴射口４ａ、５ａを設けている。該インサートスリーブ１１、１２の外周面と屈折部２ｆ、２ｇの内周面との間に圧力空気通路を設け、第二噴口４、第三噴口５の中央に開口する水噴射口４ａ、５ａの外周に圧力空気噴射口４ｂ、５ｂを設けている。該構成として、第二、第三噴口４、５からは、水と圧力空気とを混合せずに噴射して図８（Ｃ）に示すように外部混合して、気液混合流体の霧Ｋ１、Ｋ２としている。 Specifically, the insert sleeve 10 shown in FIG. 6 is fitted to the outer cylinder portion 2h provided at the center of the injection side of the nozzle body 2, and the tip portion of the insert sleeve 10 provided with the first injection port 3 is the outer cylinder. It protrudes from the part 2h, and the pressure air is injected from the first nozzle 3.
Also, insert sleeves 11 and 12 shown in FIGS. 8B and 8C are inserted into the outer cylindrical portion formed of the refracting portions 2f and 2g, and the second nozzle hole 4 and the third nozzle hole are inserted at the tips of the insert sleeves 11 and 12, respectively. Water injection ports 4 a and 5 a that open at the center of 5 are provided. A pressure air passage is provided between the outer peripheral surfaces of the insert sleeves 11 and 12 and the inner peripheral surfaces of the refracting portions 2f and 2g, and the water injection ports 4a and 5a are opened at the center of the second and third injection ports 4 and 5. Pressure air injection ports 4b and 5b are provided on the outer periphery. As the configuration, water and pressurized air are injected from the second and third nozzles 4 and 5 without being mixed, and externally mixed as shown in FIG. , K2.
　前記圧力空気を噴射する第一噴口３を設けているインサートスリーブ１０は、細長い円筒形状とし、ノズル本体２の分岐通路８ｃに連通する中央気体流路１０ａを設けている。該インサートスリーブ１０の噴射側に先端を円弧面とした円錐状噴射側部１０ｂを設け、該円錐状噴射側部１０ｂの先端に直径方向の溝１０ｃを切り欠き、溝１０ｃの中央部分を中央気体流路１０ａと連通させて図６（Ｃ）に示す長円形状とした第一噴口３を設けている。 The insert sleeve 10 provided with the first injection hole 3 for injecting the pressurized air has an elongated cylindrical shape, and is provided with a central gas flow path 10a communicating with the branch passage 8c of the nozzle body 2. A conical injection side portion 10b having a circular arc surface at the tip is provided on the injection side of the insert sleeve 10, a diametric groove 10c is cut out at the tip of the conical injection side portion 10b, and a central portion of the groove 10c is formed as a central gas. A first injection hole 3 having an oval shape shown in FIG. 6C is provided in communication with the flow path 10a.
　前記長円形状とした第一噴口３は、図１に示すように、対向配置する第二噴口４と第三噴口５とを結ぶ直線方向Ｙ１と直交する方向Ｙ２を長寸とした長円としている。なお、長円に代えて楕円形状としてもよい。
　また、図２に示すように、第二噴口４を頂面部分に設ける円錐部２ｆ１と、第三噴口５を頂面部分に設ける円錐部２ｇ１の基端部を結ぶ直線Ｌ５より、第一噴口３を衝突点（Ｐ）側へ突出させている。 As shown in FIG. 1, the first nozzle hole 3 having the elliptical shape is an ellipse having a long dimension in a direction Y <b> 2 orthogonal to the linear direction Y <b> 1 that connects the second nozzle hole 4 and the third nozzle hole 5 that face each other. Yes. An elliptical shape may be used instead of the ellipse.
Further, as shown in FIG. 2, a first nozzle hole is formed from a straight line L5 connecting a conical portion 2f1 in which the second nozzle hole 4 is provided on the top surface portion and a base end portion of the cone portion 2g1 in which the third nozzle port 5 is provided on the top surface portion. 3 is projected to the collision point (P) side.
　また、図６（Ｃ）に示すように、長円形状の第一噴口３の長寸方向の孔長（ＨＬ）と短寸方向の孔幅（ＨＷ）との関係は、孔長／孔幅（ＨＬ／ＨＷ）を１．２以上２．０未満としている。 Further, as shown in FIG. 6C, the relationship between the hole length (HL) in the long dimension and the hole width (HW) in the short dimension of the oval first injection hole 3 is the hole length / hole width. (HL / HW) is 1.2 or more and less than 2.0.
　図５ならびに図８（Ｃ）に示すように、第二噴口４と第三噴口５から対向噴射する霧Ｋ１、Ｋ２をノズル本体２の中心軸線（Ｓ１）の延長線上の衝突点（Ｐ）で衝突させている。かつ、中心軸線（Ｓ１）に位置する第一噴口３から噴射する圧力空気を前記衝突点（Ｐ）で対向噴射する霧Ｋ１、Ｋ２の中央部で衝突させている。 As shown in FIG. 5 and FIG. 8C, the mists K1 and K2 jetting oppositely from the second nozzle hole 4 and the third nozzle hole 5 at the collision point (P) on the extension line of the central axis (S1) of the nozzle body 2 Colliding. And the pressure air injected from the 1st nozzle 3 located in a center axis line (S1) is made to collide with the center part of fog K1, K2 which injects oppositely at the said collision point (P).
　第二噴口４の中心軸線（Ｓ２）と第三噴口５の中心軸線（Ｓ３）は、ノズル本体２の中心軸線（Ｓ１）の噴射側（Ｘ）の延長線に向けて傾斜させ、第二噴口４、第三噴口５から対向噴射する霧Ｋ１、Ｋ２をノズル本体２の中心軸線（Ｓ１）の延長線上の衝突点（Ｐ）で衝突させている。該衝突点（Ｐ）で第一噴口３からの噴射する圧力空気を、前記第二噴口４および第三噴口５から噴射する気液混合流体の霧Ｋ１、Ｋ２と衝突させている。 The center axis (S2) of the second nozzle hole 4 and the center axis (S3) of the third nozzle hole 5 are inclined toward the extension line on the injection side (X) of the center axis (S1) of the nozzle body 2, and the second nozzle 4. The mists K1 and K2 jetting oppositely from the third nozzle hole 5 are caused to collide at a collision point (P) on an extension line of the central axis (S1) of the nozzle body 2. At the collision point (P), the pressure air ejected from the first nozzle 3 is collided with the mists K1 and K2 of the gas-liquid mixed fluid ejected from the second nozzle 4 and the third nozzle 5.
　前記中心軸線（Ｓ１）と第二噴口４の中心軸線（Ｓ２）とが衝突点（Ｐ）を支点としてなす角度θ１は４０゜～９０゜としている。前記中心軸線（Ｓ１）と第三噴口５の中心軸線（Ｓ３）とが衝突点（Ｐ）を支点としてなす角度は前記角度θ１と同等としている。よって、中心軸線（Ｓ２）と（Ｓ３）とがなす角度θ２を８０°～１８０°としている。 The angle θ1 between the center axis (S1) and the center axis (S2) of the second nozzle 4 with the collision point (P) as a fulcrum is 40 ° to 90 °. The angle between the central axis (S1) and the central axis (S3) of the third nozzle hole 5 with the collision point (P) as a fulcrum is the same as the angle θ1. Therefore, the angle θ2 formed by the central axes (S2) and (S3) is set to 80 ° to 180 °.
　また、第二、第三噴口４、５の先端点から衝突点（Ｐ）までの距離Ｌ１は第一噴口３の先端点から衝突点（Ｐ）までの距離Ｌ２よりも短くしている。該距離Ｌ１とＬ２の関係は、距離Ｌ２＝Ｌ１×１．０～２．０の範囲としている。 Also, the distance L1 from the tip points of the second and third nozzle holes 4 and 5 to the collision point (P) is shorter than the distance L2 from the tip point of the first nozzle hole 3 to the collision point (P). The relationship between the distances L1 and L2 is a distance L2 = L1 × 1.0 to 2.0.
　前記ノズル１では、第二、第三噴口４、５から噴射する気液混合流体は水圧を０～０．５ＭＰａ、圧力空気を０～１．０ＭＰａとし、第二、第三噴口４、５から噴射する気液混合流体（霧Ｋ１、Ｋ２）の気水比（空気／水）を２００～２０００としている。 In the nozzle 1, the gas-liquid mixed fluid ejected from the second and third nozzle holes 4 and 5 has a water pressure of 0 to 0.5 MPa and a pressurized air of 0 to 1.0 MPa. The air-water ratio (air / water) of the gas-liquid mixed fluid to be ejected (fog K1, K2) is set to 200-2000.
　前記構成からなる本発明のノズル１では、第一噴口３から噴射する圧力空気と、第二、第三噴口４、５から噴射する気液混合流体（霧Ｋ１、Ｋ２）が、ノズル本体２および第一噴口３の中心軸線（Ｓ１）の延長線上の１つの衝突点（Ｐ）で衝突する。第二、第三噴口４、５の対向方向からの霧を衝突させ、該衝突部の中心へ第一噴口３からの圧力空気を噴射して衝突させることで、衝突点（Ｐ）で超音波振動が発生し、該超音波振動により混合した霧中の水滴を更に微粒化でき、大量に霧を発生させることができる。
　また、圧力空気を噴射する第一噴口３を長円形状として、第二噴口４および第三噴口５から噴射する水滴を噴射方向と直交方向に吹き飛ばしているため、第一噴口３からの圧力空気との衝突で第二、第三噴口４、５から噴射した水滴が吹き返されて第二、第三噴口４、５の周縁に付着するのを防止できる。 In the nozzle 1 of the present invention having the above-described configuration, the pressure air injected from the first nozzle 3 and the gas-liquid mixed fluid (mists K1, K2) injected from the second and third nozzles 4, 5 are supplied to the nozzle body 2 and Colliding at one collision point (P) on the extension line of the central axis (S1) of the first nozzle hole 3. The mist from the opposing direction of the second and third nozzle holes 4 and 5 is collided, and the pressurized air from the first nozzle hole 3 is injected into the center of the collision part to collide with the ultrasonic wave at the collision point (P). Vibration is generated, water droplets in the mist mixed by the ultrasonic vibration can be further atomized, and a large amount of mist can be generated.
Moreover, since the 1st nozzle hole 3 which injects pressure air is made into an ellipse shape, and the water droplet injected from the 2nd nozzle hole 4 and the 3rd nozzle hole 5 is blown away in the orthogonal direction with the injection direction, the pressure air from the 1st nozzle hole 3 It is possible to prevent water droplets ejected from the second and third nozzle holes 4 and 5 from being blown back and adhering to the peripheral edges of the second and third nozzle holes 4 and 5 due to the collision.
　このように、長円形状とした第一噴口３から圧力空気のみを、第二、第三噴口から噴射する霧Ｋ１、Ｋ２の衝突点に向けて噴射することで、衝突混合する霧Ｋ１、Ｋ２を第一噴口３からの圧力空気と混合して霧の水滴を微粒化して霧の発生量を増大できると共に、水滴を噴射する第二、第三噴口４、５の周縁に水滴が付着するのを確実に防止できる。 In this way, the mists K1 and K2 that collide and mix by injecting only the pressure air from the first nozzle 3 having the oval shape toward the collision points of the mists K1 and K2 that are injected from the second and third nozzles. Can be mixed with the pressure air from the first nozzle 3 to atomize the fog water droplets to increase the amount of fog generated, and the water droplets adhere to the peripheral edges of the second and third nozzles 4 and 5 for jetting the water droplets. Can be reliably prevented.
　本発明の前記ノズル１は、大量の霧を発生させる大型ノズル、該大型ノズルより霧の発生量を少なくした中型ノズル、小型ノズルを設けている。
　第二、第三噴口４、５からそれぞれ噴射する圧力空気量が１０ＮＬ／ｍｉｎ未満を小型ノズル、１０～２０ＮＬ／ｍｉｎを中型ノズル、２０ＮＬ／ｍｉｎ以上を大型ノズルとしている。 The nozzle 1 of the present invention is provided with a large nozzle that generates a large amount of mist, a medium-sized nozzle that generates less mist than the large nozzle, and a small nozzle.
When the amount of pressure air injected from the second and third nozzles 4 and 5 is less than 10 NL / min, a small nozzle is used, 10 to 20 NL / min is a medium nozzle, and 20 NL / min or more is a large nozzle.
　前記小型ノズルは、ノズル１への圧力空気供給量の総量を３０ＮＬ／ｍｉｎ未満、水供給量の総量を３．３Ｌ／ｈｒ未満としている。該小型ノズルでは、第二噴口４から噴射する圧力空気量Ｑａ１および第三噴口５から噴射する圧力空気量Ｑａ２より第一噴口３から噴射する圧力空気量Ｑａ３を多くしている。
　前記中型ノズルは、ノズル１への圧力空気供給量の総量を３０ＮＬ／ｍｉｎ以上４０ＮＬ／ｍｉｎ未満、水供給量の総量を２．５Ｌ／ｈｒ以上４Ｌ／ｈｒ未満としている。該中型ノズルでは第一、第二、第三噴口３、４、５からそれぞれ噴射する圧力空気量Ｑａ３、Ｑａ１、Ｑａ２は略同量としている。
　前記大型ノズルは、ノズル１への圧力空気供給量の総量を４０ＮＬ／ｍｉｎ以上、水供給量の総量を４Ｌ／ｈｒ以上としている。該大型ノズルでは第二噴口４から噴射する圧力空気量Ｑａ１、第三噴口５から噴射する圧力空気量Ｑａ２より第一噴口３から噴射する圧力空気量Ｑａ３を少なくしている。 In the small nozzle, the total amount of pressurized air supplied to the nozzle 1 is less than 30 NL / min, and the total amount of water supplied is less than 3.3 L / hr. In the small nozzle, the amount of pressure air Qa3 injected from the first injection port 3 is made larger than the amount of pressure air Qa1 injected from the second injection port 4 and the amount of pressure air Qa2 injected from the third injection port 5.
In the medium-sized nozzle, the total amount of pressurized air supplied to the nozzle 1 is 30 NL / min or more and less than 40 NL / min, and the total amount of water supply is 2.5 L / hr or more and less than 4 L / hr. In the medium nozzle, the pressure air amounts Qa3, Qa1, and Qa2 injected from the first, second, and third nozzle holes 3, 4, and 5, respectively, are set to substantially the same amount.
In the large nozzle, the total amount of pressurized air supplied to the nozzle 1 is 40 NL / min or more, and the total amount of water supply is 4 L / hr or more. In the large nozzle, the pressure air amount Qa3 injected from the first injection port 3 is made smaller than the pressure air amount Qa1 injected from the second injection port 4 and the pressure air amount Qa2 injected from the third injection port 5.
　具体的には、図７の表に示すように、小型ノズル、中型ノズル、大型ノズルで供給する圧力空気量、水量を相違させている。
　図７の設定としたノズルを作成して噴霧実験した結果、衝突点（Ｐ）における霧の発生量を所要量に確保でき、かつ、第二、第三噴口４、５の周縁への水滴の付着を確実に防止することができた。 Specifically, as shown in the table of FIG. 7, the amount of pressurized air and the amount of water supplied by the small nozzle, the medium nozzle, and the large nozzle are different.
As a result of creating a nozzle set as shown in FIG. 7 and performing a spraying experiment, the amount of fog generated at the collision point (P) can be secured to a required amount, and water droplets on the peripheral edges of the second and third nozzles 4 and 5 can be secured. Adhesion could be reliably prevented.
　即ち、小型ノズルでは、第二、第三噴口４、５からの圧力空気の噴射量より第一噴口３からの圧力空気の噴射量を多くすることで、衝突部における霧の発生を増大でき、かつ、第二、第三噴口４、５への水滴の付着を第一噴口３から噴射する圧力空気により確実に防止できることが確認できた。
　一方、大型ノズルでは、第二、第三噴口４、５からの圧力空気の噴射量が多いため、第一噴口３からの圧力空気の噴射量を第二、第三噴口４、５より少なくしても、衝突部における霧の発生量を増大できると共に、第二、第三噴口４、５の周縁への水滴の付着を阻止できることが確認できた。特に、第一噴口３からの圧力空気の噴射量を低減することでトータルの圧力空気量が過大にならず、エネルギーコストを抑制できた。 That is, in the small nozzle, by increasing the injection amount of the pressure air from the first injection port 3 than the injection amount of the pressure air from the second and third injection ports 4, 5, the generation of fog in the collision part can be increased. In addition, it was confirmed that the adhesion of water droplets to the second and third nozzle holes 4 and 5 can be reliably prevented by the pressure air injected from the first nozzle hole 3.
On the other hand, in a large nozzle, since the injection amount of the pressurized air from the second and third nozzle holes 4 and 5 is large, the injection amount of the pressurized air from the first nozzle hole 3 is made smaller than that of the second and third nozzle holes 4 and 5. However, it has been confirmed that the amount of fog generated at the collision portion can be increased and adhesion of water droplets to the peripheral edges of the second and third nozzle holes 4 and 5 can be prevented. In particular, by reducing the amount of pressurized air injected from the first nozzle 3, the total amount of pressurized air does not become excessive, and the energy cost can be suppressed.
　図８および図９に前記ノズル１を備えた加湿器２０の実施形態を示す。
　なお、加湿器の構造は前記実施形態に限定されず、第一の発明のノズル１を備えておればよい。 8 and 9 show an embodiment of the humidifier 20 provided with the nozzle 1.
In addition, the structure of a humidifier is not limited to the said embodiment, What is necessary is just to provide the nozzle 1 of 1st invention.
　前記加湿器２０はケーシング２１、蓋材２２と、該蓋材２２に着脱装着するノズル１を備えている。該ノズル１は前記第一実施形態のノズルを用いているため、ノズルの構造の説明は省略する。 The humidifier 20 includes a casing 21, a lid member 22, and a nozzle 1 that is attached to and detached from the lid member 22. Since the nozzle 1 uses the nozzle of the first embodiment, description of the nozzle structure is omitted.
　加湿器２０は、ケーシング２１の上面開口を閉鎖する蓋材２２を備え、該蓋材２２の外周に９０度間隔をあけて前記ノズル１を４つ取り付けている。なお、加湿器に取り付けるノズルの個数は限定されず、１個でも良い。
　ケーシング２１は内部にフロート２５を収容した略円筒型であり、その上面開口を前記蓋材２２で閉鎖している。 The humidifier 20 includes a cover member 22 that closes the upper surface opening of the casing 21, and four nozzles 1 are attached to the outer periphery of the cover member 22 with an interval of 90 degrees. The number of nozzles attached to the humidifier is not limited and may be one.
The casing 21 has a substantially cylindrical shape in which a float 25 is accommodated, and an upper surface opening thereof is closed by the lid member 22.
　前記ケーシング２１は周壁２１ａを底壁２１ｂに向かって縮径方向に傾斜させ、かつ底壁２１ｂの内面は中央に向けて下方傾斜させ、中央部の最下端部に液溜まり２６を設けている。また、周壁２１ａの内面には周方向にあけてリブ２１ｄを突設し、該リブ２１ｄの内周面に沿ってフロート２５が昇降するようにしている。 The casing 21 has a peripheral wall 21a inclined in the direction of diameter reduction toward the bottom wall 21b, and an inner surface of the bottom wall 21b is inclined downward toward the center, and a liquid reservoir 26 is provided at the lowermost end of the center. In addition, ribs 21d are provided in the inner surface of the peripheral wall 21a so as to project in the circumferential direction, and the float 25 moves up and down along the inner peripheral surface of the rib 21d.
　前記フロート２５は、前記リブ２１ｄと底壁２１ｂとに僅かな隙間をあけて沿う形状とし、最下端部の液溜まり２６と対応するフロート２５の中心部に上下に開口する貫通孔２５ａを設けている。
　蓋材２２の中心部に下方へ突出する吸液管２２ｅを突設し、該吸液管２２ｅをフロート２５の貫通孔２５ａに貫通させ、下端を液溜まり２６に開口させ、液溜まり２６より液を吸引している。該吸液管２２ｅの上端は４方向に分岐させ、該分岐通路２２ｆをノズル１の液体通路７に連通している。
　該蓋材２２の中央部には、前記吸液管２２ｅと対応する上側に気体供給管連結部２２ｇを設け、その下端を４方向に分岐させ、該分岐通路２２ｈをノズル１の気体通路８に連通している。 The float 25 has a shape with a slight gap between the rib 21d and the bottom wall 21b, and a through hole 25a that opens up and down is provided at the center of the float 25 corresponding to the liquid reservoir 26 at the lowermost end. Yes.
A liquid absorption pipe 22e protruding downward is provided at the center of the lid member 22, the liquid absorption pipe 22e is passed through the through hole 25a of the float 25, and the lower end is opened to the liquid reservoir 26. Is sucking. The upper end of the liquid suction pipe 22e is branched in four directions, and the branch passage 22f communicates with the liquid passage 7 of the nozzle 1.
A gas supply pipe connecting part 22g is provided on the upper side corresponding to the liquid suction pipe 22e at the center part of the cover member 22 and its lower end is branched in four directions. The branch path 22h is connected to the gas path 8 of the nozzle 1. Communicate.
　蓋材２２の一側部に水供給管４０を連結する水供給管連結部２２ｉを設け、該水供給管連結部２２ｉの下部に、止水弁２９の収容部２２ｊを設けている。前記水供給管連結部２２ｉと収容部２２ｊとの間に半球状の弁座２２ｋを設けている。なお、前記水供給管連結部２２ｉにストレーナを介在させてもよい。
　前記収容部２２ｊに収容する止水弁２９は前記弁座２２ｋを開閉するゴム製の半球状の弁体２９ａを備え、該止水弁２９の下端を止水レバー３０に固定させている。 A water supply pipe connecting part 22i for connecting the water supply pipe 40 is provided on one side of the lid member 22, and a housing part 22j for the water stop valve 29 is provided below the water supply pipe connecting part 22i. A hemispherical valve seat 22k is provided between the water supply pipe connecting portion 22i and the accommodating portion 22j. In addition, you may interpose a strainer in the said water supply pipe connection part 22i.
The water stop valve 29 housed in the housing portion 22j includes a rubber hemispherical valve body 29a that opens and closes the valve seat 22k, and the lower end of the water stop valve 29 is fixed to the water stop lever 30.
　止水レバー３０は真っすぐな形状のレバーとし、その一端の支点３０ａを収容部２２ｊの下端部に回転自在に軸着し、該支点３０ａに近接して上向きに設けた突出部３０ｂを前記止水弁２９の下端に接触させている。該止水レバー３０の中央部に前記吸液管２２ｅを貫通させる穴３０ｃを設け、止水レバー３０をフロート２５の上面に沿って配置し、止水レバー３０の突出端に下向きに設けた接触部３０ｄを設けている。 The water stop lever 30 is a straight lever, and a fulcrum 30a at one end thereof is rotatably attached to the lower end of the accommodating portion 22j, and a protruding portion 30b provided upward in the vicinity of the fulcrum 30a is provided as the water stop lever. The valve 29 is in contact with the lower end. A hole 30c is formed in the center of the water stop lever 30 to allow the liquid absorption pipe 22e to pass therethrough. The water stop lever 30 is disposed along the upper surface of the float 25, and a contact provided downward on the protruding end of the water stop lever 30. A portion 30d is provided.
　前記止水レバー３０の下向きの接触部３０ｄはフロート２５の上面に当接し、この状態で止水レバー３０に下端を固定した止水弁２９は下降し、弁座２２ｋを開いて給水状態となる。貯水室３２内に定量の給水が成され、フロート２５が上昇し、接触部３０ｄが押し上げられると、止水弁２９も上昇して弁座２２ｋを閉じて給水を停止している。其の際、テコの原理により、止水弁２９の押し上げ力を強めている。
　噴霧作動時、吸液管２２ｅから水が吸い上げられ、貯水室３２内の水の量が減少するとフロート２５は下降し、止水弁２９も下降して、弁座２２ｋを開き、貯水室３２内に液を供給している。このように、貯水室３２に溜める液体（水）は少量とし、常時新鮮な水を供給する構成としている。 The downward contact portion 30d of the water stop lever 30 is in contact with the upper surface of the float 25. In this state, the water stop valve 29 having its lower end fixed to the water stop lever 30 is lowered and the valve seat 22k is opened to enter a water supply state. . When a certain amount of water is supplied into the water storage chamber 32, the float 25 is raised, and the contact portion 30d is pushed up, the water stop valve 29 is also raised to close the valve seat 22k and stop water supply. At that time, the push-up force of the water stop valve 29 is strengthened by the principle of leverage.
When the spraying operation is performed, water is sucked up from the liquid suction pipe 22e, and when the amount of water in the water storage chamber 32 is reduced, the float 25 is lowered, the water stop valve 29 is also lowered, the valve seat 22k is opened, and the water storage chamber 32 is opened. The liquid is supplied to As described above, the liquid (water) stored in the water storage chamber 32 is small in volume, and fresh water is constantly supplied.
　蓋材２２の中央に気体供給管５０と連通させる前記気体供給管連結部２２ｇを設け、その下端を４方に分岐して、分岐通路２２ｈを設け、該分岐通路２２ｈをノズル本体２の前記気体通路８と連通している。 The gas supply pipe connecting portion 22g that communicates with the gas supply pipe 50 is provided at the center of the lid member 22, and the lower end of the gas supply pipe connecting portion 22g is branched into four directions to provide a branch passage 22h. It communicates with the passage 8.
　前記ノズル１を９０度間隔をあけて取り付けた加湿器２０を図９に示すように、気体供給管５０を圧力空気導入管５１に所要間隔をあけて吊り下げている。また、水供給管４０を水導入管４１に所要間隔をあけて吊り下げている。 As shown in FIG. 9, the humidifier 20 to which the nozzle 1 is attached at an interval of 90 degrees is suspended from the pressure air introduction pipe 51 at a required interval as shown in FIG. Further, the water supply pipe 40 is suspended from the water introduction pipe 41 with a required interval.
　次に、前記加湿器２０の噴霧作動を以下に説明する。
　蓋材２２に設けた圧力空気の分岐通路２２ｈに供給される圧力空気が、ノズル１の気体通路８に流入する。一方、前記分岐通路２２ｈに流入する圧力空気の負圧を分岐通路２２ｆに導入し、吸液管２２ｅにより貯水室３２の底部中心より水を吸い上げ、分岐通路２２ｆを通してノズル１の液体通路７に液体を流入させる。 Next, the spraying operation of the humidifier 20 will be described below.
The pressure air supplied to the pressure air branch passage 22 h provided in the lid member 22 flows into the gas passage 8 of the nozzle 1. On the other hand, the negative pressure of the pressure air flowing into the branch passage 22h is introduced into the branch passage 22f, water is sucked up from the center of the bottom of the water storage chamber 32 by the liquid suction pipe 22e, and liquid is supplied to the liquid passage 7 of the nozzle 1 through the branch passage 22f. Inflow.
　ノズル１では、前記のように、第二、第三噴口４、５の中心から噴射する液を外周から圧力空気を噴射して外部混合し、圧力空気の剪断作用により微霧化して噴射する一方、第一噴口３から圧力空気を噴射している。このように３方向から噴射する流体を外部の衝突点（Ｐ）で衝突させて超音波を発生して液滴をさらに超微粒化および均質化し、霧を大量に発生させている。尚、圧力空気圧は０～１ＭＰａ、水圧は０～０．５ＭＰａの範囲に設定している。 In the nozzle 1, as described above, the liquid injected from the centers of the second and third nozzle holes 4 and 5 is externally mixed by injecting the pressure air from the outer periphery, and atomized by the shearing action of the pressure air. The pressure air is injected from the first nozzle 3. In this way, the fluid jetted from three directions is collided at the external collision point (P) to generate ultrasonic waves, further micronize and homogenize the droplets, and generate a large amount of fog. The pressure and air pressure are set in the range of 0 to 1 MPa, and the water pressure is set in the range of 0 to 0.5 MPa.
　前記のように、噴霧時において、水を貯水室３２の底部中心の液溜まり２６より吸い上げていく。水はフロート２５の外周よりテーパをかけた底部中心に向かって流れてくるため、古い液から順次噴霧していくこととなる。貯水室３２内に溜まっている液量が減少してフロート２５が下降すると、止水レバー３０が下降して止水弁２９を下降させ、弁座２２ｋが開いて貯水室３２内に水を導入する。
　貯水室３２内へ水が導入されてフロート２５が上昇すると、前記のように止水レバー３０の先端が押し上げられ、止水弁２９が上昇して弁座２２ｋを閉じる。このように貯水量を少量としているため、噴霧時に絶えずフロート２５が昇降して止水レバー３０、止水弁２９を作動して水の供給を断続し、新しい水を貯水室３２に供給している。
　また、上記フロート２５、止水レバー３０および止水弁２９の作動は安定かつ正確に為される。即ち、フロート２５は中央を吸液管２２ｅにより、外周がケーシングのガイドリブ２１ｄによりガイドされて真っすぐに昇降する。 As described above, at the time of spraying, water is sucked up from the liquid reservoir 26 at the center of the bottom of the water storage chamber 32. Since water flows from the outer periphery of the float 25 toward the tapered bottom center, the old liquid is sequentially sprayed. When the amount of liquid accumulated in the water storage chamber 32 decreases and the float 25 descends, the water stop lever 30 descends to lower the water stop valve 29, and the valve seat 22k opens to introduce water into the water storage chamber 32. To do.
When water is introduced into the water storage chamber 32 and the float 25 rises, the tip of the water stop lever 30 is pushed up as described above, and the water stop valve 29 rises to close the valve seat 22k. Since the amount of water stored in this way is small, the float 25 constantly moves up and down during spraying, operates the water stop lever 30 and the water stop valve 29 to intermittently supply water, and supplies new water to the water storage chamber 32. Yes.
Further, the float 25, the water stop lever 30 and the water stop valve 29 are operated stably and accurately. That is, the float 25 moves up and down straight, with the liquid guide tube 22e at the center and the outer periphery guided by the guide rib 21d of the casing.
　このように、加湿器２０は常に新鮮な水を噴霧できると共に、ノズル１を装着していることにより供給する圧力空気量を低減しても大量の霧を発生させることができ、ランニングコストの軽減を図ることができる。 In this way, the humidifier 20 can always spray fresh water, and by mounting the nozzle 1, it can generate a large amount of mist even if the amount of pressurized air supplied is reduced, thus reducing running costs. Can be achieved.
　１　ノズル
　２　ノズル本体
　３　第一噴口
　４　第二噴口
　５　第三噴口
　７　液体通路
　８　気体通路
　２０　加湿器
　Ｐ　衝突点 DESCRIPTION OF SYMBOLS 1 Nozzle 2 Nozzle main body 3 1st nozzle 4 4 2nd nozzle 5 3rd nozzle 7 Liquid channel 8 Gas channel 20 Humidifier P Collision point

Claims (6)

  1. 　ノズル本体の中心軸線上の噴射側先端に配置する第一噴口と、該第一噴口より噴射側に突出すると共に前記中心軸線の延長線に向けて互いに向き合うように傾斜させて対向配置する第二噴口と第三噴口を備え、
    　前記第二噴口および第三噴口は円形とすると共に、前記第一噴口は長円または楕円形状とし、　
    　前記第二噴口および第三噴口から噴射する気液混合流体と前記第一噴口から噴射する気体とを前記中心軸線上で衝突させて水滴を微粒化し、かつ、前記第二、第三噴口から噴射する水滴を前記第一噴口から噴射する空気で吹き飛ばす構成としていることを特徴とするスプレーノズル。     A first nozzle hole disposed at the tip of the nozzle body on the central axis of the nozzle body, and a second nozzle that projects from the first nozzle nozzle toward the spray side and is inclined to face each other toward an extension line of the central axis. It has a nozzle and a third nozzle,
    The second nozzle hole and the third nozzle hole are circular, and the first nozzle hole is an ellipse or an ellipse,
    The gas-liquid mixed fluid jetted from the second jet nozzle and the third jet nozzle collides with the gas jetted from the first jet nozzle on the central axis to atomize water droplets, and jetted from the second and third jet nozzles A spray nozzle characterized in that water droplets to be blown are blown away by air jetted from the first nozzle hole.
  2. 　前記第二、第三噴口はいずれも円形の中央水噴口から噴射する水の回りに、前記中央水噴口を囲む円環状空気噴口から噴射する空気を外部混合し、
    　前記第一噴口は、対向配置する前記第二噴口と第三噴口とを結ぶ直線方向と直交する方向を長寸とした長円または楕円形状としている請求項１に記載のスプレーノズル。     The second and third nozzles are both externally mixed with air injected from an annular air nozzle surrounding the central water nozzle, around the water jetted from the circular central water nozzle,
    2. The spray nozzle according to claim 1, wherein the first nozzle hole has an ellipse or an ellipse shape having a length in a direction orthogonal to a linear direction connecting the second nozzle hole and the third nozzle hole arranged to face each other.
  3. 　前記第一噴口の長寸方向の孔長（ＨＬ）と短寸方向の孔幅（ＨＷ）との関係を、孔長／孔幅（ＨＬ／ＨＷ）を１．２以上２．０未満とし、かつ、
    　前記第一、第二、第三噴口は前記ノズル本体に設けた各円錐状噴射部の頂面部分に設け、前記第一噴口は前記第二噴口と第三噴口の円錐状噴射部の基端部を結ぶ直線より前記衝突点側へ突出している請求項１または請求項２に記載のスプレーノズル。     The relationship between the hole length (HL) in the long dimension of the first nozzle hole and the hole width (HW) in the short dimension is such that the hole length / hole width (HL / HW) is 1.2 or more and less than 2.0, And,
    The first, second, and third nozzle holes are provided at the top surface portion of each conical injection section provided in the nozzle body, and the first nozzle is a base end of the cone injection section of the second and third nozzle holes. The spray nozzle of Claim 1 or Claim 2 which protrudes in the said collision point side from the straight line which connects a part.
  4. 　前記衝突点を支点として前記第一噴口の中心線と第二噴口の中心線とが成す角度と、前記第一噴口の中心線と第三噴口の中心線とが成す角度とは同等とすると共、該角度θ１を９０°～４０°とし、
    　前記第二、第三噴口と前記衝突点までの距離Ｌ１は同等とすると共に、前記第一噴口から前記衝突点間での距離Ｌ２はＬ１×１．０～２．０としている請求項１乃至請求項３のいずれか１項に記載のスプレーノズル。     The angle formed by the center line of the first nozzle hole and the center line of the second nozzle hole with the collision point as a fulcrum is equal to the angle formed by the center line of the first nozzle hole and the center line of the third nozzle hole. The angle θ1 is 90 ° to 40 °,
    A distance L1 between the second and third nozzle holes and the collision point is equal, and a distance L2 between the first nozzle hole and the collision point is L1 × 1.0 to 2.0. The spray nozzle according to claim 3.
  5. 　請求項１乃至請求項４のいずれか１項に記載のスプレーノズルを備えた加湿器。 A humidifier comprising the spray nozzle according to any one of claims 1 to 4.
  6. 　貯水室を形成しているケーシング内にフロートを収容すると共に、該ケーシングの開口を閉鎖する蓋材の外周に間隔をあけて複数個の前記スプレーノズルを着脱自在に取り付け、該蓋材に前記各スプレーノズルに空気を供給する気体通路と水を供給する液体通路を設けている請求項５に記載の加湿器。 A float is accommodated in a casing forming a water storage chamber, and a plurality of spray nozzles are detachably attached to the outer periphery of a lid member that closes the opening of the casing, and each of the spray nozzles is attached to the lid member. The humidifier according to claim 5, wherein a gas passage for supplying air to the spray nozzle and a liquid passage for supplying water are provided.
PCT/JP2015/078326 2014-11-13 2015-10-06 Spray nozzle and humidifier provided with said spray nozzle WO2016076038A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11029085B2 (en) * 2015-03-20 2021-06-08 Chiyoda Corporation BOG processing apparatus
IT202000012397A1 (en) 2020-05-26 2021-11-26 Rentacs Italia S R L METHOD AND SYSTEM FOR SANITATION OF ENVIRONMENTS

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6724747B2 (en) * 2016-11-30 2020-07-15 東芝三菱電機産業システム株式会社 Spray nozzle
CN109099545A (en) * 2018-10-18 2018-12-28 郑州德诚信环保设备有限公司 Spray head prevents wounded device and the humidifier using the device
KR102334822B1 (en) * 2020-04-20 2021-12-03 주식회사 두레마을 Cyclo shape injection nozzle and spray gun using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6212441Y2 (en) * 1981-07-29 1987-03-31
JP2010127603A (en) * 2008-12-01 2010-06-10 Ikeuchi:Kk Nozzle and humidifier including the nozzle
WO2012127647A1 (en) * 2011-03-23 2012-09-27 平田機工株式会社 Nozzle tip member and nozzle using same
JP2013103175A (en) * 2011-11-14 2013-05-30 Nozzle Network Co Ltd Liquid atomization apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6212441Y2 (en) * 1981-07-29 1987-03-31
JP2010127603A (en) * 2008-12-01 2010-06-10 Ikeuchi:Kk Nozzle and humidifier including the nozzle
WO2012127647A1 (en) * 2011-03-23 2012-09-27 平田機工株式会社 Nozzle tip member and nozzle using same
JP2013103175A (en) * 2011-11-14 2013-05-30 Nozzle Network Co Ltd Liquid atomization apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11029085B2 (en) * 2015-03-20 2021-06-08 Chiyoda Corporation BOG processing apparatus
IT202000012397A1 (en) 2020-05-26 2021-11-26 Rentacs Italia S R L METHOD AND SYSTEM FOR SANITATION OF ENVIRONMENTS

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