WO2012083330A2 - Canon à neige - Google Patents

Canon à neige Download PDF

Info

Publication number
WO2012083330A2
WO2012083330A2 PCT/AT2011/000512 AT2011000512W WO2012083330A2 WO 2012083330 A2 WO2012083330 A2 WO 2012083330A2 AT 2011000512 W AT2011000512 W AT 2011000512W WO 2012083330 A2 WO2012083330 A2 WO 2012083330A2
Authority
WO
WIPO (PCT)
Prior art keywords
tube
region
nozzles
gun according
snow
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/AT2011/000512
Other languages
German (de)
English (en)
Other versions
WO2012083330A3 (fr
Inventor
Rolf BLOMBERG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUFAG SPORT- und FREIZEITANLAGEN GmbH
Original Assignee
SUFAG SPORT- und FREIZEITANLAGEN GmbH
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 SUFAG SPORT- und FREIZEITANLAGEN GmbH filed Critical SUFAG SPORT- und FREIZEITANLAGEN GmbH
Publication of WO2012083330A2 publication Critical patent/WO2012083330A2/fr
Publication of WO2012083330A3 publication Critical patent/WO2012083330A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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

Definitions

  • the invention relates to a snow gun with a flow channel forming tube, a fan which generates an axial flow in the region of an opening of the tube, and with nozzles which are arranged in an annular manner around the flow channel.
  • Such snow cannons are known, for example, from EP 2 244 042 A, US Pat. No. 4,593,854 A and US Pat. No. 3,979,061 A.
  • the invention is based on the object to improve the efficiency of such snow cannons.
  • a centrifugal fan instead of an axial fan has several advantages.
  • One advantage is that the air flow is concentrated at the circumference of the pipe, ie it exits the pipe mouth at a higher velocity and / or higher density or higher pressure than in the middle region or near-axis region of the pipe. Since, in a preferred embodiment of the invention, the atomizing nozzles for water and the nucleator nozzles also extend annularly around the region of the mouth of the pipe, the higher speed and the higher pressure result in a better mixing of air and water, which results in the formation of ice or water Promotes snow crystals.
  • centrifugal fans with the same air flow have a lower power consumption than axial fans and with centrifugal fans, a higher pressure than can be generated with axial fans.
  • concentration of the air flow at the periphery of the tube a total lower air flow is required, the drive power for the fan can be significantly reduced by the use of a centrifugal fan.
  • centrifugal fans are quieter than axial fans, so that the acoustic environmental impact of the snow gun according to the invention is lower than in those with axial fans. It is known to control snow guns by controlling the water pressure and / or the number of nozzles in operation as a function of air temperature, air humidity and water temperature. Since flow rate of centrifugal fans is very well controlled by the speed, according to the invention, the speed of the centrifugal fan can be included in the control system.
  • the snow gun 1 has a tube 2 with an inlet region 3 and an orifice 4.
  • the tube 2 defines a flow channel for an air flow, which is generated by a disposed inside the tube 2 radial fan 6, which is driven by an electric motor 5.
  • a rotationally symmetrical guide plate 7 is arranged, which forms a nozzle-like tapered inlet cross-section.
  • To the guide plate 7 of the inlet region 3 includes a housing wall 8 of the centrifugal fan 6.
  • the electric motor 5 is attached via webs 9 to the wall 14 of the tube 2. These webs 9 at the same time form a guide device through which air emerging from the centrifugal fan 6 can be directed. This means that with the webs 9 a swirl of the air flow generated, amplified, attenuated or just can be adjusted in general.
  • a discharge cap not shown, may be arranged, which extends with decreasing cross section in the direction of the mouth 4 out.
  • the air flow is shown schematically by arrows 12. It can be seen that air sucked in by the centrifugal fan 6 through the inlet region 3 exits the centrifugal fan 6 substantially radially at an outlet region 15. Since the snow gun 1 is closed at the rear in the outer peripheral region by the guide plate 7, the air exiting from the centrifugal fan 6 automatically flows toward the mouth 4.
  • baffles By suitable, not shown in the drawing baffles, the flow from the substantially radial direction in a axial direction towards the mouth 4 towards supported or directed.
  • the diameter of the wall of the tube 2 decreases to a diameter which is the smallest in the illustrated embodiment in the region of the mouth 4.
  • the air flows through the webs 9 directed in the direction of the mouth 4, wherein the air flow due to the centrifugal fan 6 and the webs 9 concentrated concentrated in the region of the tube wall 2, whereas the flow velocity or the air pressure in the region or along the central axis 10 is lower.
  • nozzles 1 In the region of the mouth 4 of the tube 2 are, as is known, one or more rows of nozzles 1, in the illustrated embodiment, four rows of nozzles 11, each having either atomizing nozzles for water or nucleator nozzles or both atomizer nozzles and nucleator nozzles. Since the air flow increasingly moves in the region of these nozzles 1 1, whereas in the not so effective, near-axis region only a reduced air flow takes place, there is a better mixing of air and water in the immediate area after the nozzles 11, which the formation of ice or Promotes snow crystals.
  • the invention is not limited to the arrangement of nozzles 1 in the region of the mouth 4 but it can also be arranged in other areas on or in the tube 2 nucleator nozzles and spray nozzles, but this preferred due to the concentration of air flow in the region of the wall 14 of the tube 2 (but not necessarily) in the region or in the vicinity of the tube wall are.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Nozzles (AREA)

Abstract

Canon à neige comportant un tube (2) formant un canal d'écoulement, ce canon comprenant un ventilateur radial (6), qui génère un courant axial dans la zone d'une embouchure (4) du tube (2), et des ajutages (11) disposés de manière circulaire autour du canal d'écoulement.
PCT/AT2011/000512 2010-12-22 2011-12-22 Canon à neige Ceased WO2012083330A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT21102010A AT510874A1 (de) 2010-12-22 2010-12-22 Schneekanone
ATA2110/2010 2010-12-22

Publications (2)

Publication Number Publication Date
WO2012083330A2 true WO2012083330A2 (fr) 2012-06-28
WO2012083330A3 WO2012083330A3 (fr) 2012-09-27

Family

ID=45566777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2011/000512 Ceased WO2012083330A2 (fr) 2010-12-22 2011-12-22 Canon à neige

Country Status (2)

Country Link
AT (1) AT510874A1 (fr)
WO (1) WO2012083330A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979061A (en) 1974-02-04 1976-09-07 Kircher Everett F Method and apparatus for making artificial snow
US4593854A (en) 1984-04-25 1986-06-10 Albertsson Stig L Snow-making machine
EP2244042A2 (fr) 2009-04-14 2010-10-27 Hans Wiesmeier Procédé d'augmentation de l'efficacité dans la production de neige technique à l'aide de canons à neige basse pression

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968164A (en) * 1958-02-24 1961-01-17 Alden W Hanson Method of generating snow
DE2628437A1 (de) * 1976-06-24 1977-12-29 Linde Ag Geblaese
FR2656860B1 (fr) * 1990-01-08 1992-04-17 Chanel Pierre Procede et installation pour la production de germes d'eau cristallisee, par exemple pour la fabrication de neige artificielle.
IT1239680B (it) * 1990-03-27 1993-11-12 Franco Frenner Cannone sparaneve
DE102005013140A1 (de) * 2005-03-22 2006-09-28 Messer Austria Gmbh Vorrichtung und Verfahren zur Erzeugung eines kalten Gasstroms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979061A (en) 1974-02-04 1976-09-07 Kircher Everett F Method and apparatus for making artificial snow
US4593854A (en) 1984-04-25 1986-06-10 Albertsson Stig L Snow-making machine
EP2244042A2 (fr) 2009-04-14 2010-10-27 Hans Wiesmeier Procédé d'augmentation de l'efficacité dans la production de neige technique à l'aide de canons à neige basse pression

Also Published As

Publication number Publication date
WO2012083330A3 (fr) 2012-09-27
AT510874A1 (de) 2012-07-15

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