EP2682692A1 - Générateur de neige - Google Patents

Générateur de neige Download PDF

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Publication number
EP2682692A1
EP2682692A1 EP12174695.2A EP12174695A EP2682692A1 EP 2682692 A1 EP2682692 A1 EP 2682692A1 EP 12174695 A EP12174695 A EP 12174695A EP 2682692 A1 EP2682692 A1 EP 2682692A1
Authority
EP
European Patent Office
Prior art keywords
snow
housing
rotor
air
blades
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.)
Withdrawn
Application number
EP12174695.2A
Other languages
German (de)
English (en)
Inventor
Phillip Skacel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP12174695.2A priority Critical patent/EP2682692A1/fr
Publication of EP2682692A1 publication Critical patent/EP2682692A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a propeller gun (snow gun) that can be used as a wind turbine, and a wind turbine that can be used to generate snow.
  • the water droplet Since the temperature in the air cloud is below -15 ° C and due to the expansion is an unsaturated state, the water droplet finds exactly these conditions, which are necessary to crystallize.
  • the molecules in the water droplet lose their energy and form a crystal lattice. It produces the smallest platelet-shaped ice crystals, called ice molecules (also called nucleides). These ice molecules serve as crystal catalysts.
  • ice molecules also called nucleides.
  • these ice molecules serve as crystal catalysts.
  • the molecules of the large droplet will dump in and release heat Crystal lattice and it creates a plate-like snow crystal. In order for this snow crystal to "freeze through” sufficiently, it must remain in the cold and unsaturated ambient air for a sufficiently long time. By Cooling and evaporation will gradually freeze the water droplet and completely transform it into a snow crystal.
  • These machines consist essentially of a more or less cylindrical tube, at one end of a fan sucks air. At the other end is a nozzle system with nucleator nozzles (mixing nozzles that create the ice molecules) and water jets from which larger water droplets emerge. Into this water droplet the nucleides are injected and snow crystals are formed.
  • the fan generates a sufficiently strong stream of air, which ejects the water droplets or ice crystals far enough so that the residence time becomes large enough and the droplets or crystals can freeze through.
  • a compressor which is built on the propeller machine, produces at the machine, the compressed air necessary for the production of the ice-cloth.
  • a control unit with sensors for temperature, humidity, wind direction, wind force, water temperature and water pressure regulates the water / air ratio, as well as start and stop function and the like.
  • the propeller machines are built on stationary towers, or mobile trolleys or chassis.
  • nozzles On a vertical pipe are a number of nozzles consisting of air or nucleator nozzles (these are air / water mixing nozzles) and water nozzles.
  • the nozzles are arranged so that the jet of the nucleator nozzle is directed into the jet of the water nozzle and thus the nuclei are injected into the water droplets.
  • the crystallization of the water droplets begins immediately after both spray clouds have mixed. Due to the large drop height, the crystals can freeze out.
  • a compressor on the lance or a central compressor
  • the heart of a wind turbine is the rotor for converting wind energy into mechanical rotational energy.
  • High-speed rotors for electricity generating power plants are built in the majority with three wings. But there are also systems with different rotor number. As an example, 2-wing aircraft are mentioned here because of the lower production costs.
  • variable-speed wind turbines There are wind turbines with constant and variable speed.
  • the advantage of variable-speed wind turbines is that you can drive over a wide range of wind speeds in the aerodynamically optimal range.
  • these require a considerable effort for electrical converter for the constant-frequency network feed.
  • the simpler concept limits the performance by stalling (stall effect) on the rotor blade.
  • the second concept used is based on an adjustment of the rotor blade about its longitudinal axis (pitch).
  • the profiles of the rotor blades are predominantly laminated from GFK or CFK. There are usually used different profiles in the outdoor or indoor. Flow elements applied to the wings ensure defined flow states despite fluctuating wind speeds.
  • the invention has for its object to use a propeller machine during the inactive time as a wind turbine, or to use a wind turbine for about 400-500 hours as a propeller gun. Since snow cannons are mainly installed in alpine terrain, where experience has shown that wind conditions are better than in the valley, and the infrastructure for electricity, connection to the feed of the electricity generated, etc. already exists, this solution is appropriate.
  • a rotor (1) is housed in a housing (2).
  • a water atomizing unit (3) (a nozzle ring with several nozzles for nucleators and nozzles for water or a nozzle group with water and nucleator nozzles).
  • the rotor (1) is connected via a rotor shaft (9) with a generator / motor (4), which converts the rotational movement of the rotor into electrical energy.
  • the angle of attack of the rotor blades can be changed (pitch control) so that the rotor blades can be used both as a fan and as a wind turbine. When generating electricity, the rotor acts as a wind turbine.
  • the housing is equipped with an opening device (5) (rotating, sliding, folding mechanism). By this device, large areas of the housing (2) are opened. This ensures that the air flow with little resistance through the housing (2) can flow.
  • direction and strength wind measuring devices (6) are to be provided which control an active tracking system (azimuth motor) (7).
  • the rotor (1) generates sufficient torque at sufficient wind speed, so that the generator (4) can be driven via the rotor shaft (9). This generates an unregulated electrical current, which is converted in a converter to a feedable current.
  • the rotor blades When snow is generated, the rotor blades are used as fans.
  • the rotor blades can be adjusted so far that they can be used as fan blades.
  • the rotation speed and thus the throw of the fan can be controlled.
  • the air flow of the fan is bundled, and thus a greater throw distance is achieved, the openings of the housing (2) are closed and thus achieved an increase in the flow velocity.
  • the air flow flows around the water and nucleator nozzles and accelerates them or entrains the water and ice crystals. If the wet bulb and water temperature is sufficiently low, snow crystals will form.
  • the snow production corresponds to the snow production by means of a conventional propeller snow machine. If necessary, the tracking system can be used as a swivel to snow a larger area.
EP12174695.2A 2012-07-03 2012-07-03 Générateur de neige Withdrawn EP2682692A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12174695.2A EP2682692A1 (fr) 2012-07-03 2012-07-03 Générateur de neige

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12174695.2A EP2682692A1 (fr) 2012-07-03 2012-07-03 Générateur de neige

Publications (1)

Publication Number Publication Date
EP2682692A1 true EP2682692A1 (fr) 2014-01-08

Family

ID=46456403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12174695.2A Withdrawn EP2682692A1 (fr) 2012-07-03 2012-07-03 Générateur de neige

Country Status (1)

Country Link
EP (1) EP2682692A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787960A2 (fr) * 1996-02-02 1997-08-06 Luciano Marcantoni Enneigeur à grande performance
CA2473345A1 (fr) * 2004-07-08 2006-01-08 Adam Stern Appareil et methode pour la prevention de l'epuisement de la masse glaciere polaire
DE102009004738A1 (de) * 2009-01-15 2010-09-09 Matthias Hahn Schneeerzeuger ohne externen elektrischen Energieanschluß
US20100239411A1 (en) * 2008-12-12 2010-09-23 Annette Lane Dual-mode wind machine
US20110027067A1 (en) * 2007-03-23 2011-02-03 Flodesign Wind Turbine Corporation Coated shrouded wind turbine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787960A2 (fr) * 1996-02-02 1997-08-06 Luciano Marcantoni Enneigeur à grande performance
CA2473345A1 (fr) * 2004-07-08 2006-01-08 Adam Stern Appareil et methode pour la prevention de l'epuisement de la masse glaciere polaire
US20110027067A1 (en) * 2007-03-23 2011-02-03 Flodesign Wind Turbine Corporation Coated shrouded wind turbine
US20100239411A1 (en) * 2008-12-12 2010-09-23 Annette Lane Dual-mode wind machine
DE102009004738A1 (de) * 2009-01-15 2010-09-09 Matthias Hahn Schneeerzeuger ohne externen elektrischen Energieanschluß

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