EP1645821B1 - Tête de lance pour une lance à neige et ensemble de buses - Google Patents

Tête de lance pour une lance à neige et ensemble de buses Download PDF

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Publication number
EP1645821B1
EP1645821B1 EP05007487.1A EP05007487A EP1645821B1 EP 1645821 B1 EP1645821 B1 EP 1645821B1 EP 05007487 A EP05007487 A EP 05007487A EP 1645821 B1 EP1645821 B1 EP 1645821B1
Authority
EP
European Patent Office
Prior art keywords
lance head
lance
chamber
water
nozzles
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.)
Active
Application number
EP05007487.1A
Other languages
German (de)
English (en)
Other versions
EP1645821A2 (fr
EP1645821A3 (fr
Inventor
Walter Rieder
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.)
Technoalpin Holding SpA
Original Assignee
Technoalpin Holding SpA
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Publication date
Application filed by Technoalpin Holding SpA filed Critical Technoalpin Holding SpA
Publication of EP1645821A2 publication Critical patent/EP1645821A2/fr
Publication of EP1645821A3 publication Critical patent/EP1645821A3/fr
Application granted granted Critical
Publication of EP1645821B1 publication Critical patent/EP1645821B1/fr
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Anticipated expiration legal-status Critical

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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
    • 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 lance head for a snow lance.
  • a lance head for a snow lance.
  • so-called "snow lances" US-A-6 129 290 . US-A-6,161,769 . US-A-4 915 302 ), which are used to produce artificial snow and consist essentially of a lance body and at least one provided on this lance body lance head having one or more nozzles for compressed air and water under pressure.
  • At least one nozzle is designed as a nucleator to which water and air are supplied and which serves for the production of nuclei, ie for the production of small cores, which initiate the snow formation from the water sprayed into the air stream in the air stream emerging from the lance head.
  • a lance head according to the preamble of claim 1 is for example from the US-A-6 129 290 known.
  • the object of the invention is to show a lance head, which even in low weather conditions, especially at low temperatures and a strong headwind, which leads to a considerable wetting of the outer surface of the lance head with water discharged from the nozzles, icing, in particular ironing of the housing , effectively prevented.
  • a lance head according to the patent claim 1 is formed.
  • the boundary surface of the inside of the housing and formed during normal operation of the lance head or snow lance is traversed by the water chamber greater than the local outer surface of the housing, so even at low weather conditions, ie at very low temperatures the outer surface of the housing is maintained by the water flowing through the first chamber at a temperature which is above the freezing point.
  • the housing is convexly rounded on its outside at least in the region where nozzles are provided, and Although three-dimensional, ie, at least two mutually perpendicular spatial axes, whereby a fast and effective repelling of water is achieved, which has reached, for example, after exiting the nozzle on the housing outer surface.
  • This special form of housing thus also contributes to preventing ironing, ie ice formation, in particular also increasing ice formation on the outside of the housing.
  • the lance head generally designated 1 in the figures is part of a snow lance for producing snow from water and air.
  • the lance head 1 consists essentially of a, in the illustrated embodiment made of aluminum or an aluminum alloy spherical housing 2, which is at the end of a lance body 3 shown schematically this with a housing portion 2.1 is mounted tightly cross-over and having a nozzle assembly 9.
  • each separate channel 4, 5, 6, 21 is provided, namely a first and second channels 4 and 5 for supplying water and a third channel 6 for supplying compressed air, preferably cooled compressed air to the lance head 1 and a fourth (not in the FIG. 1 shown) channel 21 for supplying fix water.
  • the interior of the housing 1 is divided in the illustrated embodiment substantially into three separate chambers, namely in the larger chamber 7 and a first and second smaller chamber 8.1, 8.2, in the illustrated embodiment, inter alia, a laterally provided on the lance head 1 nozzle assembly 9 or whose center axis DA concentrically enclose and which are formed within the spherical outer wall of the housing 2.
  • the first smaller chamber 8.1 communicates with the first channel 4 in connection, via a connecting channel 10 formed in the housing 2 or a connecting line, which in the for the FIG. 1 selected representation is connected at its lower end to the first channel 4 and opens into the upper portion of the first smaller chamber 8.1.
  • the second channel 5 opens into the larger chamber 7, which is closed at the transition to the lance 3 in a suitable manner, for example by a lance body 3 at its upper end outside of the first to third channels 4 - 6 closing conclusion 11th
  • nozzles 12 Distributed around the nozzle arrangement 9 or its axis DA are a plurality of nozzles 12 which are in communication with the first and second smaller chambers 8.1, 8.2 and serve to dispense water in finely distributed form.
  • the nozzle assembly 9 consists in the illustrated embodiment of a circular disk-shaped carrier 13, whose central axis is the nozzle axis DA. At the center, the carrier 13 has an internally threaded aperture 14 in which a nucleator 15, i. a nozzle for generating nuclei, which can be charged with an air-water mixture; from the snow formation initiating smallest snow or ice particles in the emerging from the nucleator 15 air flow.
  • a nucleator 15 with the third channel 6 for supplying air and the second smaller chamber 8.2 is connected via a further in-house connection 17 with the second channel 5 for supplying water.
  • the supplied via the third channel 6 air is mixed in the nucleator 15 before exiting the nucleator 15 with the fix water to form an air-water mixture.
  • Several water outlet nozzles 18 are provided on the carrier 13 distributed around the nucleator 15, via which water or fixed water from the larger chamber 7 is introduced into the air stream of the nucleator 15 in finely sprayed form.
  • the nucleator 15 has one or more nozzle openings, of which the nozzle opening 15.1 is formed coaxially with the axis DA and the nozzle openings 15.2 with their axes forms an angle of less than 90 ° with the nozzle axis DA, the (angle) to the housing interior opens the opposite side, the nozzles 18 are oriented with their axes parallel to the nozzle axis DA.
  • the nozzles 18 are fastened by screwing into the carrier 13.
  • the carrier 13 is suitably fixed, for example by screwing in an opening 19 of the housing 2, in such a way that the inside of the carrier 13 is a part of the inner surface of the chamber 7.
  • Fig. 4 shows in a cross section along the in FIG. 1 indicated line CC the lance 3, the four separate channels 4, 5, 6, 21 has.
  • the first and second channels 4, 5 are provided for supplying water into the first and second chambers 8.1, 8.2 of the housing 2 and the third channel 6 for supplying air to the nucleator 15.
  • Via the fourth channel 21 of the lance 3 fix water is supplied into the larger chamber 7, which is the free cavities, for example, the in FIG. 4 shown through first to third hollow chambers 7.1, 7.2, 7.3 of the larger chamber 7 flows through and energy to the spherical housing 2 transmits.
  • a lance head housing 2 without inserted nozzles 12 or a nozzle arrangement 9 is shown in an alternative embodiment.
  • the illustrated lance head housing 2 has a first and a second opening 19 for receiving a respective nozzle arrangement 9 according to FIG FIGS. 2 and 3 on.
  • further openings 22 for receiving further nozzles 12 are provided, wherein in the illustrated embodiment three openings 22 are arranged above and below the openings 19 in the lance head housing 2 along a circular disk-shaped line on the housing surface.
  • the openings 19 and 22 respectively in a preferred embodiment, internal thread for screwing the circular disk-shaped carrier 13 of the nozzle assembly 9 and the nozzle 12 on.
  • FIG. 6a The schematic representation of the lance head housing 2 according to FIG. 5 is in FIG. 6a exemplified again under a slightly different viewing angle.
  • Fig. 6b shows one example of each of the openings 22 for receiving the nozzles 12, which are supplied via the first smaller and second smaller chamber 8.1, 8.2 with water.
  • the larger chamber 7 is shown, which has a plurality of ribs 20 for enlarging the inner surface of the chamber 7.
  • Fig. 6c is another section along the axis FF through the housing 2 according to the FIG. 6a shown, from which the supply of water via the second channel 5 in the second smaller chamber 8.2 clearly shows.
  • the fixed water supplied via the fourth channel 21 into the larger chamber 7 emerges partly at the nucleator 15 and partly at the nozzles 18.
  • water is supplied to the first and second smaller chambers 8.1, 8.2 and to the nozzles 12 connected to this chamber via the first and second channels 4, 5, in particular when the weather conditions produce additional snow with the nozzles 12 from the nozzles 12 allow leaking water.
  • a peculiarity of the lance head 1 is also that the inner surface bounding the chamber 7 is provided at least in partial regions with ribs 20 projecting from the respective inner surface so that the inner surface of the housing 2 surrounded by the water in the chamber 7 is substantially larger than the outer surface of the housing and thus, taking into account, in particular, the material with good thermal conductivity selected for the housing 2, it is ensured that the outer surface of the housing 2 is kept in a temperature range above the freezing point even in the case of greater cold.
  • the nozzle assembly 9 is characterized by the use of largely uniform components, by a compact design, by a simplified assembly and high ease of service, namely, in that all components of this nozzle assembly 9 are provided on a common carrier 13 in a very compact manner. Furthermore, the nozzle assembly 9 provides additional protection against icing, by the warmer air in the nucleator 15th In a preferred embodiment of the lance head 1, this has at least two nozzle arrangements 9, the nozzle axes DA of the at least two nozzle arrangements 9 having an angle in the range of approximately 30 ° to 50 °, in particular 40 °.
  • the invention has been described above by means of an embodiment. It is understood that numerous changes and modifications are possible within the scope of the invention as defined by the claims.

Landscapes

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

Claims (6)

  1. Tête de lance pour une lance à neige avec un boîtier de la tête de lance (2) comportant des buses (12, 15, 18) pour la sortie de l'eau et/ou de l'air ainsi que avec au moins une première chambre (7) formée à l'intérieur du boîtier de la tête de lance (2) qui est traversée par l'eau sortant au moins d'une partie des buses (12, 15, 18) et dont la surface intérieure est au moins identique, de forme préférée plus grande que la surface extérieure du boîtier de la tête de lance (2), dans laquelle la surface intérieure de l'au moins une chambre (7) est formée de façon profilée pour augmenter la surface qui est en contact avec l'eau, caractérisée en ce que le profilage est constitué par des nervures (20) .
  2. Tête de lance selon la revendication 1, caractérisée en ce que le boîtier de la tête de lance (2) sur sa surface extérieure au moins dans la région des buses (12, 15, 18) est incurvée ou arrondie de manière convexe autour d'au moins deux axes s'étendant perpendiculairement l'un à l'autre.
  3. Tête de lance selon l'une quelconque des revendications précédentes, caractérisée en ce que le boîtier de la tête de lance (2) se compose d'un métal bon conducteur de la chaleur, par exemple l'aluminium ou un alliage d'aluminium.
  4. Tête de lance selon la revendication 2, caractérisée en ce que le boîtier de la tête de lance (2) comporte un façonnage convexe ou arrondi le long de la majorité de sa surface extérieure, ou est formée de manière sphérique ou partiellement sphérique.
  5. Tête de lance selon l'une quelconque des revendications précédentes, caractérisée en ce que au moins une autre chambre (8.1, 8.2) est prévue dans le boîtier de la tête de lance (2), séparée de la première chambre (7) qui est en communication avec des buses (12) sur le côté extérieur du boîtier de la tête de lance (2), dans laquelle par exemple, la première chambre (7), pour le fonctionnement du boîtier de la tête de lance, peut alimenter de l'eau fixe et l'au moins une deuxième chambre (8.1, 8.2) peut alimenter de l'eau d'une manière contrôlée.
  6. Tête de lance selon l'une quelconque des revendications précédentes, caractérisée par un ensemble de buses (9) comportant au moins un appareil de nucléation (15), dans lequel l'appareil de nucléation (15) ainsi que au moins une buse de sortie d'eau (18) sont prévus dans un support commun par exemple en forme de disque (13), dans lequel le support (13) est inséré, par exemple, dans un évidement du boîtier de la tête de lance (2), de préférence dans un évidement (19) dans une partie de la paroi du boîtier délimitant la première chambre (7).
EP05007487.1A 2004-10-08 2005-04-06 Tête de lance pour une lance à neige et ensemble de buses Active EP1645821B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004049430 2004-10-08
DE102004053984A DE102004053984B3 (de) 2004-10-08 2004-11-09 Lanzenkopf für eine Schneelanze sowie Düsenanordnung

Publications (3)

Publication Number Publication Date
EP1645821A2 EP1645821A2 (fr) 2006-04-12
EP1645821A3 EP1645821A3 (fr) 2006-05-24
EP1645821B1 true EP1645821B1 (fr) 2017-11-29

Family

ID=35539639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05007487.1A Active EP1645821B1 (fr) 2004-10-08 2005-04-06 Tête de lance pour une lance à neige et ensemble de buses

Country Status (3)

Country Link
US (1) US7770816B2 (fr)
EP (1) EP1645821B1 (fr)
DE (1) DE102004053984B3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2071258A1 (fr) 2007-12-14 2009-06-17 Bächler Top Track AG Buse de canon à neige, utilisation d'une buse de canon à neige, canon à neige, canon à ventilateur et procédé de production de cristaux de neige et de neige artificielle
CA2736760C (fr) 2008-09-25 2018-10-30 Sno Tek P/L Buses a jet de fluide plat presentant une taille de gouttelettes reglable et un angle de pulverisation fixe ou variable
US8376245B2 (en) * 2010-01-18 2013-02-19 Ratnik Industries, Inc. Snow making apparatus and method
EP2890499A4 (fr) 2012-08-29 2016-05-25 Snow Logic Inc Buses de pulvérisation de fluide à double vecteur modulaires
RU2674136C2 (ru) 2012-08-29 2018-12-04 Сноу Лоджик, Инк. Одно- и многоступенчатые снежные ружья
EP2972018B1 (fr) 2013-03-15 2020-05-13 Snow Logic Inc. Nucléateur permettant de générer des cristaux de glace afin de faire passer des gouttelettes d'eau dans des systèmes d'enneigement
US11052411B2 (en) 2017-10-11 2021-07-06 Richard Marcelin Wambsgans Device and method to create nano-particle fluid nucleation sites in situ

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302833A (en) * 1965-12-21 1967-02-07 Bernard Block Dispenser for dispensing product at conditioned temperatures
US4749127A (en) * 1987-02-13 1988-06-07 Ash Robert M Telescoping snow making apparatus and method for using same
US4915302A (en) * 1988-03-30 1990-04-10 Kraus Robert A Device for making artificial snow
US5544701A (en) * 1994-07-19 1996-08-13 Elder; Roy W. Canister warming apparatus
US5884841A (en) * 1997-04-25 1999-03-23 Ratnik Industries, Inc. Method and apparatus for making snow
US5890652A (en) * 1997-07-08 1999-04-06 Taylor; Peter Self-regulating snowmaking nozzle, system and method
US6129290A (en) * 1997-11-06 2000-10-10 Nikkanen; John P. Snow maker
US6161769A (en) * 1997-12-16 2000-12-19 Boyne Usa, Inc. Adjustable snow making tower
FR2784905B1 (fr) * 1998-10-23 2001-01-12 York Neige Tete de pulverisation polyvalente utilisable notamment pour la fabrication de neige artificielle
EP1053440B1 (fr) * 1998-02-06 2004-01-14 York Neige Generateur de particules de glace, de neige, ou nucleateur, integre dans une tete de pulverisation d'eau
US6029898A (en) * 1998-09-16 2000-02-29 Dupre; Herman K. Snow making tower and method of manufacture
DE69902400T2 (de) * 1998-10-23 2003-04-03 York Neige Sainte Luce Sur Loi Vielfältig gebrauchbarer sprühkopf zur herstellung von kunstschnee
AT411228B (de) * 2001-09-19 2003-11-25 Hdp Hochdruckprodukte Maschine Verfahren zum einstellen einer temperatur an einer sprüh-mischdüse sowie sprüh-mischdüse
US6543699B1 (en) * 2001-10-15 2003-04-08 Herman K. Dupre Method and apparatus for making snow
US6793148B2 (en) * 2002-08-10 2004-09-21 Ratnik Industries, Incorporated Water-only method and apparatus for making snow

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US7770816B2 (en) 2010-08-10
EP1645821A2 (fr) 2006-04-12
DE102004053984B3 (de) 2006-06-14
US20060079137A1 (en) 2006-04-13
EP1645821A3 (fr) 2006-05-24

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