WO2002075228A1 - Canon a neige dote d'un systeme de pulverisation de liquides - Google Patents

Canon a neige dote d'un systeme de pulverisation de liquides Download PDF

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Publication number
WO2002075228A1
WO2002075228A1 PCT/AT2002/000078 AT0200078W WO02075228A1 WO 2002075228 A1 WO2002075228 A1 WO 2002075228A1 AT 0200078 W AT0200078 W AT 0200078W WO 02075228 A1 WO02075228 A1 WO 02075228A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow shaft
snow cannon
snow
water
outlet openings
Prior art date
Application number
PCT/AT2002/000078
Other languages
German (de)
English (en)
Inventor
Harald Koller
Original Assignee
Harald Koller
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 Harald Koller filed Critical Harald Koller
Publication of WO2002075228A1 publication Critical patent/WO2002075228A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
    • F25C3/04—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for sledging or ski trails; Producing artificial snow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1021—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with individual passages at its periphery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/105—Fan or ventilator arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2303/00—Special arrangements or features for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Special arrangements or features for producing artificial snow
    • F25C2303/046—Snow making by using low pressure air ventilators, e.g. fan type snow canons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2303/00—Special arrangements or features for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Special arrangements or features for producing artificial snow
    • F25C2303/048—Snow making by using means for spraying water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2303/00—Special arrangements or features for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Special arrangements or features for producing artificial snow
    • F25C2303/048—Snow making by using means for spraying water
    • F25C2303/0481—Snow making by using means for spraying water with the use of compressed air

Definitions

  • the invention relates to a snow cannon with an atomizing device.
  • the snow guns previously used for snow-making on slopes generally work with a pressure nozzle system, whereby a distinction is made between high pressure and low pressure.
  • high-pressure systems air and water are mixed at high pressure, at least 10 bar, and atomized via a coarse nozzle.
  • the system has essentially proven to be technically unproblematic but energy-intensive.
  • low-pressure systems water is sprayed through fine nozzles and blown into the air with an air jet generated by a fan. Although the system requires considerably less energy, it is controlled in a complicated manner, since the water flow must be adapted to the temperatures of air and water in the case of snowmaking. Such a scheme is complex and expensive.
  • nucleation nuclei can be, for example, small frozen ice crystals (homogeneous nucleation). These can be generated by allowing a pressurized water-air mixture to flow out of a nozzle, the expansion resulting in a strong cooling (for example to temperatures below -40 ° C.) and the ice nuclei forming spontaneously. Other germs can also be introduced into the supercooled water droplet stream. Also the water supplied to the snow cannon chemical additives are added, whereby a separate nuclear gate device can be omitted.
  • a spraying device for glazes and the like is known from DE 9013829 U1.
  • two opposing disks are arranged on a hollow shaft through which the glaze is guided.
  • inclined rod-shaped elements are arranged between the two disks, so that the liquid, after being thrown out as a result of the centrifugal force through the openings of the rotating hollow shaft, is atomized when passing through the region in which the inclined rod elements are arranged.
  • a cleaning device is known from DE 4000049 A1, in which the cleaning water is guided in a rotating hollow shaft that is pressurized with water, the wall of this hollow shaft being equipped with nozzles through which the water is sprayed.
  • a disadvantage of this known prior art has been found in most cases that the liquid is not atomized finely enough and constant spray patterns can only be achieved with a complicated control.
  • an atomizing device for liquids in which the liquid to be atomized is introduced into a rotating hollow shaft and is conveyed to the outlet openings via distribution elements.
  • the use of such an atomizing device in a snow cannon would not be possible since, due to the ambient temperature prevailing in winter, the liquid would freeze when it was distributed or sprayed inside the hollow shaft onto the inner cylinder wall and onto the bores. The entire atomizing device would therefore be frozen over within a very short time.
  • the object of the invention is to provide a functionally reliable and economical snow cannon and according to the invention this is achieved by a snow cannon with the features of claim 1.
  • the snow cannon according to the invention which can additionally have, for example, at least one rotatably mounted fan blade, is much safer and more economical to use, since instead of the previously usual 40 bar, only 2 to 3 bar are required. Even the freezing of individual parts that occurs time and again in the complex low-pressure snow machines can can be avoided with the snow cannon according to the invention, since the rotating disks are automatically thrown dry when the machine switches off.
  • the water in the hollow shaft can be emptied automatically, for example, using a simple drain valve. In this way, it is possible with the snow cannon according to the invention to dispense with heating the technical facilities, which results in energy savings of 25% in comparison with low-pressure snow guns.
  • the disk-shaped distributor elements have a plurality of guide channels for the liquid to be atomized on their top and / or underside, preferably semicircular in cross section, wherein it has turned out to be particularly favorable according to a preferred embodiment when the disk-shaped distributor elements arranged on the circumference are pressed against one another in the direction of the axis of rotation of the hollow shaft and the guide channels of the top and bottom of two adjacent distributor elements correspond to form closed channels.
  • the filter disks that are well known on the market can be used as distributor elements. In addition to their simple handling, they also represent an inexpensive solution.
  • the distributor elements in the atomizing device according to the invention can be replaced and cleaned simply and quickly.
  • a particularly finely distributed spray pattern can be achieved if, as in a further embodiment of the Invention is provided that the guide channels of at least one distributor element, preferably curved in the direction of rotation of the rotating hollow shaft.
  • At least one fan blade and part of the hollow shaft, in particular the outlet openings are arranged in a housing.
  • This simple construction saves weight, which of course has advantages for transport in difficult terrain, especially since the snow cannon according to the invention can be produced in any size.
  • the size of a fan gun is just as conceivable as a small device on a lance. Further advantages and details of the invention are explained in more detail in the following description of the figures with reference to the drawings. Show
  • F Fiigg .. 1 1 a sketchy representation of the atomizing device
  • Fig. 4 is a schematic representation of a hollow shaft and Fig. 5 5 and 66 embodiments of a snow cannon with the atomizing device according to the invention.
  • the atomization device for liquids 1 shown in FIG. 1 has a motor 2 and a hollow shaft 3 connected to it in a rotatable manner.
  • the liquid to be atomized is fed via a feed line 8 to the drilled motor shaft 11 and subsequently to the rotating hollow shaft 3. Due to the rotation, the liquid is fed through the outlet openings 7 (not shown) in the wall 12 of the hollow shaft 3 to the channels 6 of the disk-shaped filter elements 4. Driven by the centrifugal force, the liquid penetrates through the channels 6 in the distributor elements 4 from the inside of the shaft to the outside, where it atomizes as it exits the channel 6.
  • the guide channels 6 are curved.
  • Such a shaping of the guide channels 6 has proven to be particularly favorable for fine atomization of the liquid, but care must be taken to ensure that the distributor elements 4 are arranged on the hollow shaft 3 such that the guide channels 6 are bent in the direction of rotation of the hollow shaft 3.
  • the disk-shaped distributor elements 4 have a plurality of guide channels 6 a, 6 b with a triangular cross section on their top and bottom sides. If the disk-shaped distributor elements 4 are now pressed together, the guide channels 6 b arranged on the underside of the distributor elements 4 correspond to the guide channels 6 a arranged on the top of the next distributor element 4, forming a closed channel 6.
  • the hollow shaft 3 shown in FIG. 4 rotates about its axis of rotation 5.
  • the wall 12 of the hollow shaft 3 there are several outlet openings 7 for the liquid guided in the hollow shaft 3.
  • the liquid is thrown outwards through the outlet openings 7 in the wall 12 of the hollow shaft 3. Due to the fact that the outlet openings 7 do not taper as usual, there can be no blockages, so that this system of rotating hollow shaft with disk-shaped distributor elements arranged thereon is far less susceptible to errors than other atomizing devices known from the prior art.
  • FIG. 5 schematically shows a snow cannon 13 according to the invention, in which the described atomizing device is used.
  • Water is fed into the motor shaft 11 of the motor 2 via the feed line 8 introduced and subsequently fed to the hollow shaft 3, which is rotatably connected to the motor 2.
  • a plurality of distributor elements 4 are arranged in the region of the outlet openings 7 (not shown) of the hollow shaft 3.
  • a plurality of fan blades 9, 9 ′ are arranged on the hollow shaft 3 between the distributor elements 4 and the motor 2. If the hollow shaft 3 is now rotated by the motor 2 about the axis of rotation 5, the water penetrates the guide channels 6 in the distributor elements 4 to the outside, where it atomizes.
  • a finer atomization can be achieved if compressed air is fed into the hollow shaft 3 via the feed line 8 in addition to the water.
  • the fine water droplets are then transported further by an air stream which is generated by the fan blades 9, 9 ′ attached to the hollow shaft 3.
  • the fan blades 9, 9 'and the distributor elements are arranged in a housing 10.
  • FIG. 6 shows a snow cannon 13 in which the entire snow cannon is surrounded by a housing 10.
  • the liquid is introduced into the hollow shaft 3 via the guide channel 8 via a hub 14.
  • FIG. 5 With regard to the mode of operation, reference is made to FIG. 5.
  • the water supplied via the feed line 8 can be pretreated by adding chemicals conventionally used for this purpose.
  • germs can be introduced into the air flow, for example frozen ice crystals.
  • Nozzles 15 for introducing such germs are shown schematically in FIG. 5.
  • a plurality of nozzles 15 arranged in the region of the front outlet opening of the housing 10 and spaced apart from one another in the circumferential direction can be provided. These can be pressurized with a pressurized water-air mixture, so that ice crystals are formed due to the cooling occurring during the expansion of the air.
  • the nozzles 15 could, for example, also be arranged on the hollow shaft 3, in front of or behind the distributor elements 4, with a plurality of nozzles 15 spaced apart from one another in the circumferential direction again being expediently provided.
  • an additional compressed air line running through the hollow shaft 3 could be provided The compressed air-water mixture that emerges at the nozzles could be generated therein.
  • the invention is not restricted to the exemplary embodiments shown.
  • the hollow shaft in the form of a hollow cylinder with a thick wall, so that the outlet openings could take over the function of the guide channels.
  • the use of spiral leaf springs arranged on the circumferential side of the hollow shaft instead of the 6 distributor elements is also conceivable and possible.
  • the atomization device used has a number of advantages over the conventional methods. In addition to the only low pressure that is required, the atomization device has, for example, a control range that extends up to many times that of conventional pressure-nozzle systems and begins at zero.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)

Abstract

La présente invention concerne un canon à neige doté d'un système de pulvérisation, ledit système de pulvérisation (1) présentant un arbre creux (3) relié en rotation à un moteur (2) et de préférence soumis à l'action d'eau sous pression. Dans la paroi (12) de l'arbre creux (3) sont pratiquées plusieurs ouvertures de sortie (7), telles que des trous ou des fentes, destinées à l'eau circulant dans l'arbre creux (3).
PCT/AT2002/000078 2001-03-15 2002-03-11 Canon a neige dote d'un systeme de pulverisation de liquides WO2002075228A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA409/2001 2001-03-15
AT4092001 2001-03-15

Publications (1)

Publication Number Publication Date
WO2002075228A1 true WO2002075228A1 (fr) 2002-09-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2002/000078 WO2002075228A1 (fr) 2001-03-15 2002-03-11 Canon a neige dote d'un systeme de pulverisation de liquides

Country Status (1)

Country Link
WO (1) WO2002075228A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009061722A2 (fr) * 2007-11-05 2009-05-14 Johnson Controls Technology Company Procédés de fabrication de neige
WO2012126052A1 (fr) 2011-03-21 2012-09-27 Hivap Pty Ltd Évaporation de brume à vitesse élevée
CN105327805A (zh) * 2015-11-20 2016-02-17 国家电网公司 变压器用除冰机
PL425223A1 (pl) * 2018-04-13 2019-10-21 Wardas Jarosław Niskociśnieniowe urządzenie, zwłaszcza do wytwarzania śniegu
WO2021148452A1 (fr) * 2020-01-23 2021-07-29 Vangeel Electrical M.S.F. Atomiseur pour la pulverisation d'un liquide

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH111352A (de) * 1924-06-30 1925-08-01 Rappold & Volk A G Vorrichtung zum Zerstäuben von Flüssigkeiten.
US2571069A (en) * 1948-03-12 1951-10-09 Russell M Shearman Artificial snow machine
BE644699A (fr) * 1964-03-04 1964-07-01
AT305323B (de) 1969-08-29 1973-02-26 Hedco Verfahren und Vorrichtung zur Erzeugung von Schnee
US3838815A (en) * 1973-01-22 1974-10-01 B Rice Snow maker
SU1221469A1 (ru) * 1984-05-18 1986-03-30 Камский политехнический институт Устройство дл получени искусственного снега
EP0206705A1 (fr) 1985-06-19 1986-12-30 Louis Handfield Machine pour la production de neige
EP0277933A2 (fr) 1987-02-03 1988-08-10 Elektra Bregenz Aktiengesellschaft Dispositif de fabrication de neige artificielle
DE9013829U1 (de) 1989-10-03 1990-12-06 Sbarzaglia, Giovanni, Faenza, Ravenna Zerstäubungsvorrichtung für Glasuren u.dgl.
DE4000049A1 (de) 1990-01-03 1991-07-04 Stoll Metallisierungs Gmbh Vorrichtung zur reinigung der abluft von spritzkammern oder dergleichen
JPH06129740A (ja) * 1992-03-18 1994-05-13 Japan Small Corp 降雪機
DE4308842A1 (de) 1993-03-19 1994-09-22 Peter Prof Dr Walzel Verfahren und Vorrichtung zum Zerstäuben von Flüssigkeiten

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH111352A (de) * 1924-06-30 1925-08-01 Rappold & Volk A G Vorrichtung zum Zerstäuben von Flüssigkeiten.
US2571069A (en) * 1948-03-12 1951-10-09 Russell M Shearman Artificial snow machine
BE644699A (fr) * 1964-03-04 1964-07-01
AT305323B (de) 1969-08-29 1973-02-26 Hedco Verfahren und Vorrichtung zur Erzeugung von Schnee
US3838815A (en) * 1973-01-22 1974-10-01 B Rice Snow maker
SU1221469A1 (ru) * 1984-05-18 1986-03-30 Камский политехнический институт Устройство дл получени искусственного снега
EP0206705A1 (fr) 1985-06-19 1986-12-30 Louis Handfield Machine pour la production de neige
EP0277933A2 (fr) 1987-02-03 1988-08-10 Elektra Bregenz Aktiengesellschaft Dispositif de fabrication de neige artificielle
DE9013829U1 (de) 1989-10-03 1990-12-06 Sbarzaglia, Giovanni, Faenza, Ravenna Zerstäubungsvorrichtung für Glasuren u.dgl.
DE4000049A1 (de) 1990-01-03 1991-07-04 Stoll Metallisierungs Gmbh Vorrichtung zur reinigung der abluft von spritzkammern oder dergleichen
JPH06129740A (ja) * 1992-03-18 1994-05-13 Japan Small Corp 降雪機
DE4308842A1 (de) 1993-03-19 1994-09-22 Peter Prof Dr Walzel Verfahren und Vorrichtung zum Zerstäuben von Flüssigkeiten

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198647, Derwent World Patents Index; Class J07, AN 1986-310654, XP002199399 *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 435 (M - 1655) 15 August 1994 (1994-08-15) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009061722A2 (fr) * 2007-11-05 2009-05-14 Johnson Controls Technology Company Procédés de fabrication de neige
WO2009061722A3 (fr) * 2007-11-05 2009-09-24 Johnson Controls Technology Company Procédés de fabrication de neige
WO2012126052A1 (fr) 2011-03-21 2012-09-27 Hivap Pty Ltd Évaporation de brume à vitesse élevée
CN103477154A (zh) * 2011-03-21 2013-12-25 Hivap私人有限公司 高速雾蒸发
EP2689197A1 (fr) * 2011-03-21 2014-01-29 Hivap Pty Ltd Évaporation de brume à vitesse élevée
EP2689197A4 (fr) * 2011-03-21 2014-08-13 Hivap Pty Ltd Évaporation de brume à vitesse élevée
AU2012231773B2 (en) * 2011-03-21 2015-11-19 Hivap Pty Ltd High velocity mist evaporation
CN105327805A (zh) * 2015-11-20 2016-02-17 国家电网公司 变压器用除冰机
PL425223A1 (pl) * 2018-04-13 2019-10-21 Wardas Jarosław Niskociśnieniowe urządzenie, zwłaszcza do wytwarzania śniegu
WO2021148452A1 (fr) * 2020-01-23 2021-07-29 Vangeel Electrical M.S.F. Atomiseur pour la pulverisation d'un liquide

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