EP3112782B1 - Artificial snowblower - Google Patents

Artificial snowblower Download PDF

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Publication number
EP3112782B1
EP3112782B1 EP15174831.6A EP15174831A EP3112782B1 EP 3112782 B1 EP3112782 B1 EP 3112782B1 EP 15174831 A EP15174831 A EP 15174831A EP 3112782 B1 EP3112782 B1 EP 3112782B1
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EP
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Prior art keywords
nozzle
snow
snowmaking
snow generator
water supply
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German (de)
French (fr)
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EP3112782A1 (en
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Frank Wille
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    • 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 present invention relates to a snow-making system with the features of the preamble of claim 1.
  • Such a snow-making system with a convergent-divergent nozzle is in the AT 12 197 U1 and has the advantage of being able to produce artificial snow without adding chemicals at relatively high wet bulb temperatures (greater than -1 ° C). In addition, this snow-making system has the great advantage of being largely independent of the humidity.
  • the EP 2 071 258 A1 shows a snow-making system with a nucleator nozzle for generating ice nuclei, wherein water from a water supply device can be brought into contact with the ice nuclei.
  • This device is limited to lower temperatures (wet bulb) than that of the AT 12 197 U1 , but works more energetically in the range of low wet bulb temperatures (below -2 ° C).
  • snow-making systems are also shown that have a fan (fan machines), with water from a water supply device being able to be introduced into the air flow of the fan.
  • These snowmaking systems require lower temperatures (wet bulb) than those discussed above, but work in the range of lower wet bulb temperatures (below -2 ° C) also more energetically than those of the AT 12 197 U1 .
  • the structurally simplest embodiment of a snow-making system is a snow lance, in which sufficiently cold water is discharged through a nozzle and crystallizes into snow due to the sufficiently low ambient temperature.
  • This type of snowmaking system requires the lowest wet bulb temperature of the types discussed.
  • snowmaking systems consisting of a first and a second snow generator, go from the WO 2009/043 092 A1 and the U.S. 3,464,625 A emerged.
  • the two snow generators are separate operable from each other, but is with the WO 2009/043 092 A1 a common water supply is provided.
  • the object of the invention is to provide a snow-making system that can be used both at relatively high ambient temperatures and, overall, works more favorably in terms of energy than the generic snow-making system.
  • Fig. 1a shows a snow-making system 1 according to the invention, in which a first and a second snow generator 2, 7 are arranged in a common housing 13.
  • Each of the snow generators 2, 7 has a water supply device that can be selectively switched on and off via a switching device 8 (first water supply device 5 for the first snow generator 2 and second water supply device 10 for the second snow generator 7).
  • a first air supply duct 4 of the first snow generator 2 is also shown.
  • Figure 1b shows the in Fig. 1a
  • components not shown such as control or regulating device 14, which can actuate switching device 8 and receive information from sensors 15 for capturing environmental data or sensors 16 for capturing operating data of the snowmaking system.
  • the control or regulating device 14 in this exemplary embodiment can decide which of the first or second water supply devices 5, 10 it should actuate via the switching device 8 in order to obtain an optimal result.
  • Fig. 2a shows an embodiment of the invention in which the second snow generator 7 is designed in the form of a blower machine.
  • the first snow generator 2 with its associated first water supply device 5 and first air supply duct 4 is integrated into the housing of the second snow generator 7.
  • the second snow generator 7 has a schematically illustrated fan 9 and a second water supply device 10, only a single nozzle 11 being shown. Any number of nozzles 11 can of course be attached. Water can be introduced into the air stream of the fan 9 via the nozzle 11, where it crystallizes into snow - provided that the wet bulb temperatures are sufficiently low.
  • the switching device 8 allows the optional operation of only the first or second snow generator 2, 7 or both together.
  • the unclaimed snowmaking system of the Figure 2b differs from that of the Fig. 2a only because in the Figure 2b the first snow generator 2 is not integrated into the housing of the second snow generator 7, but is attached to it.
  • Fig. 3a shows a snow-making system which is not claimed and in which the second snow generator 7 is designed in the form of a snow lance.
  • the second water supply device 10 water is brought to a nozzle opening 11 of the second snow generator 7.
  • the switching device 8 allows the optional operation of only the first or second snow generator 2, 7 or both together.
  • the unclaimed variant of the Figure 3b differs from that of the Fig. 3a only because in the Figure 3b the first snow generator 2 is integrated into the housing or standpipe of the second snow generator 7.
  • Fig. 4 shows a snow-making system which is not claimed and in which the second snow generator 7 is designed in the form of a nucleator nozzle 12, as shown in FIG EP 2 071 258 A1 is shown.
  • the switching device 8 allows the optional operation of only the first or second snow generator 2, 7 or both together.
  • Fig. 5 shows an example of a first snow generator 2, which comprises the first water supply device 5, the air supply channel 4, the convergent-divergent nozzle 3 and the discharge opening 6 as essential components.
  • part of the entire housing forms the first air supply channel 4, which opens into the nozzle 3 via the mouth inlet.
  • This nozzle 3 has a convergent area K and a divergent area D, the transition area or constriction of which forms the critical point P.
  • the nozzle 3 itself is preferably designed to be rotationally symmetrical about the nozzle axis R.
  • the arrows show the accelerating air flow L, which is accelerated to supersonic speed at or shortly after the critical point P due to the Laval shape of the nozzle 3, whereby the water jet WS is atomized.
  • first and / or second snow generators 2, 7 can be present as shown.
  • the first snow generator 2 can have several convergent-divergent nozzles 3.

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

Description

Die vorliegende Erfindung betrifft eine Beschneiungsanlage mit den Merkmalen des Oberbegriffs des Anspruchs 1.The present invention relates to a snow-making system with the features of the preamble of claim 1.

Eine derartige Beschneiungsanlage mit einer konvergent-divergenten Düse ist in der AT 12 197 U1 gezeigt und weist den Vorteil auf, ohne Zugabe von Chemikalien bei relativ hohen Feuchtkugeltemperaturen (größer als -1 °C) Kunstschnee erzeugen zu können. Außerdem weist diese Beschneiungsanlage den großen Vorteil auf, von der Luftfeuchtigkeit größtenteils unabhängig zu sein.Such a snow-making system with a convergent-divergent nozzle is in the AT 12 197 U1 and has the advantage of being able to produce artificial snow without adding chemicals at relatively high wet bulb temperatures (greater than -1 ° C). In addition, this snow-making system has the great advantage of being largely independent of the humidity.

Die EP 2 071 258 A1 zeigt eine Beschneiungsanlage mit einer Nukleatordüse zum Erzeugen von Eiskeimen, wobei Wasser aus einer Wasserzufuhrvorrichtung mit den Eiskeimen in Verbindung bringbar ist. Diese Vorrichtung ist zwar auf niedrigere Temperaturen (Feuchtkugel) beschränkt als jene der AT 12 197 U1 , arbeitet jedoch im Bereich niedriger Feuchtkugeltemperaturen (unter -2 °C) energetisch günstiger.The EP 2 071 258 A1 shows a snow-making system with a nucleator nozzle for generating ice nuclei, wherein water from a water supply device can be brought into contact with the ice nuclei. This device is limited to lower temperatures (wet bulb) than that of the AT 12 197 U1 , but works more energetically in the range of low wet bulb temperatures (below -2 ° C).

Im Stand der Technik sind des Weiteren Beschneiungsanlagen gezeigt, die ein Gebläse aufweisen (Gebläsemaschinen), wobei Wasser aus einer Wasserzufuhrvorrichtung in die Luftströmung des Gebläses einbringbar ist. Diese Beschneiungsanlagen benötigen niedrigere Temperaturen (Feuchtkugel) als die oben diskutierten, arbeiten jedoch im Bereich niedriger Feuchtkugeltemperaturen (unter -2 °C) energetisch ebenfalls günstiger als jene der AT 12 197 U1 .In the prior art, snow-making systems are also shown that have a fan (fan machines), with water from a water supply device being able to be introduced into the air flow of the fan. These snowmaking systems require lower temperatures (wet bulb) than those discussed above, but work in the range of lower wet bulb temperatures (below -2 ° C) also more energetically than those of the AT 12 197 U1 .

Die konstruktiv einfachste Ausführungsform einer Beschneiungsanlage ist eine Schneilanze, bei welcher hinreichend kaltes Wasser über eine Düse ausgebracht wird und durch die ausreichend geringe Umgebungstemperatur zu Schnee kristallisiert. Dieser Typ von Beschneiungsanlage benötigt die niedrigste Feuchtkugeltemperatur der diskutierten Typen.The structurally simplest embodiment of a snow-making system is a snow lance, in which sufficiently cold water is discharged through a nozzle and crystallizes into snow due to the sufficiently low ambient temperature. This type of snowmaking system requires the lowest wet bulb temperature of the types discussed.

Weitere Beschneiungsanlagen, bestehend aus einem ersten und einem zweiten Schneegenerator, gehen beispielsweise aus der WO 2009/043 092 A1 und der US 3 464 625 A hervor. Dabei sind jeweils die beiden Schneegeneratoren getrennt voneinander betreibbar, jedoch ist bei der WO 2009/043 092 A1 eine gemeinsame Wasserzufuhr vorgesehen.Further snowmaking systems, consisting of a first and a second snow generator, go from the WO 2009/043 092 A1 and the U.S. 3,464,625 A emerged. The two snow generators are separate operable from each other, but is with the WO 2009/043 092 A1 a common water supply is provided.

Eine gattungsgemäße Beschneiungsanlage geht aus US 3,945,567 hervor.A generic snowmaking system goes out U.S. 3,945,567 emerged.

Aufgabe der Erfindung ist die Bereitstellung einer Beschneiungsanlage, die sowohl bei relativ hohen Umgebungstemperaturen einsetzbar ist als auch insgesamt energetisch günstiger arbeitet als die gattungsgemäße Beschneiungsanlage.The object of the invention is to provide a snow-making system that can be used both at relatively high ambient temperatures and, overall, works more favorably in terms of energy than the generic snow-making system.

Diese Aufgabe wird durch eine Beschneiungsanlage mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen definiert.This object is achieved by a snow-making system with the features of claim 1. Advantageous embodiments of the invention are defined in the dependent claims.

Das Vorsehen wenigstens zweier Schneegeneratoren unterschiedlichen Typs mit getrennt betätigbaren Wasserzufuhrvorrichtungen, wobei die Wasserzufuhrvorrichtungen bzw. Schneegeneratoren durch eine Schaltvorrichtung wahlweise selektiv oder gemeinsam betrieben werden können, ermöglicht eine energetisch optimale Anpassung an die Feuchtkugeltemperatur. Bei relativ hohen Feuchtkugeltemperaturen ist es vorteilhaft, nur die Wasserzufuhrvorrichtung des ersten Schneegenerators zu aktivieren. Bei relativ niedrigen Feuchtkugeltemperaturen ist es energetisch vorteilhafter, nur die Wasserzufuhrvorrichtung des zweiten Schneegenerators zu aktivieren. Vor allem in einem Übergangsbereich kann es sinnvoll sein, beide Schneegeneratoren gemeinsam zu betreiben.The provision of at least two snow generators of different types with separately operable water supply devices, whereby the water supply devices or snow generators can be operated selectively or jointly by a switching device, enables an energetically optimal adaptation to the wet bulb temperature. At relatively high wet bulb temperatures, it is advantageous to activate only the water supply device of the first snow generator. At relatively low wet bulb temperatures, it is energetically more advantageous to activate only the water supply device of the second snow generator. In a transition area in particular, it can make sense to operate both snow generators together.

Verschiedene Beispiele werden anhand der Figuren diskutiert. Es zeigen:

  • Fig. 1a, 1b ein Ausführungsbeispiel einer erfindungsgemäßen Beschneiungsanlage mit schematisch dargestelltem ersten und zweiten Schneegenerator ohne bzw. mit Sensoren sowie Steuer- oder Regelvorrichtung
  • Fig.2a ein Ausführungsbeispiel der erfindungsgemäßen Beschneiungsanlage mit einem als Gebläsemaschine ausgebildeten zweiten Schneegenerator
  • Fig. 2b eine nicht beanspruchte Beschneiungsanlage, wobei der erste Schneegenerator 2 nicht in das Gehäuse des zweiten Schneegenerators 7 integriert, sondern an dieses angebaut ist
  • Fig. 3a,3b eine nicht beanspruchte Beschneiungsanlage mit einem als Schneilanze ausgebildeten zweiten Schneegenerator in zwei Varianten
  • Fig. 4 eine nicht beanspruchte Beschneiungsanlage mit einem zweiten Schneegenerator welcher eine Nukleatordüse verwendet
  • Fig. 5 ein Ausführungsbeispiel des ersten Schneegenerators
Various examples are discussed using the figures. Show it:
  • Fig. 1a , 1b an embodiment of a snowmaking system according to the invention with schematically shown first and second snow generator without or with sensors and control or regulating device
  • Fig.2a an embodiment of the snow-making system according to the invention with a second snow generator designed as a blower machine
  • Figure 2b an unclaimed snow-making system, the first snow generator 2 not being integrated into the housing of the second snow generator 7, but being built onto it
  • Fig. 3a , 3b a non-claimed snow-making system with a second snow generator designed as a snow lance in two variants
  • Fig. 4 a non-claimed snow-making system with a second snow generator which uses a nucleator nozzle
  • Fig. 5 an embodiment of the first snow generator

Fig. 1a zeigt eine erfindungsgemäße Beschneiungsanlage 1, bei welcher in einem gemeinsamen Gehäuse 13 ein erster und ein zweiter Schneegenerator 2, 7 angeordnet sind. Jeder der Schneegeneratoren 2, 7 weist eine über eine Schaltvorrichtung 8 selektiv ein- bzw. abschaltbare Wasserzufuhrvorrichtung auf (erste Wasserzufuhrvorrichtung 5 für den ersten Schneegenerator 2 und zweite Wasserzufuhrvorrichtung 10 für den zweiten Schneegenerator 7). Weiters dargestellt ist ein erster Luftzuführkanal 4 des ersten Schneegenerators 2. Fig. 1b zeigt die in Fig. 1a der Übersichtlichkeit halber nicht dargestellten Komponenten wie Steuer- oder Regelvorrichtung 14, welche die Schaltvorrichtung 8 betätigen kann und Informationen von Sensoren 15 zur Erfassung von Umgebungsdaten bzw. Sensoren 16 zur Erfassung von Betriebsdaten der Beschneiungsanlage erhält. In Abhängigkeit der zugeführten Signale der Sensoren 15, 16 kann die Steuer- oder Regelvorrichtung 14 in diesem Ausführungsbeispiel entscheiden, welche der ersten bzw. zweiten Wasserzufuhrvorrichtungen 5, 10 sie über die Schaltvorrichtung 8 betätigen soll, um ein optimales Ergebnis zu erhalten. Fig. 1a shows a snow-making system 1 according to the invention, in which a first and a second snow generator 2, 7 are arranged in a common housing 13. Each of the snow generators 2, 7 has a water supply device that can be selectively switched on and off via a switching device 8 (first water supply device 5 for the first snow generator 2 and second water supply device 10 for the second snow generator 7). A first air supply duct 4 of the first snow generator 2 is also shown. Figure 1b shows the in Fig. 1a For the sake of clarity, components not shown, such as control or regulating device 14, which can actuate switching device 8 and receive information from sensors 15 for capturing environmental data or sensors 16 for capturing operating data of the snowmaking system. Depending on the signals supplied by the sensors 15, 16, the control or regulating device 14 in this exemplary embodiment can decide which of the first or second water supply devices 5, 10 it should actuate via the switching device 8 in order to obtain an optimal result.

Fig. 2a zeigt ein Ausführungsbeispiel der Erfindung, bei welchem der zweite Schneegenerator 7 in Form einer Gebläsemaschine ausgebildet ist. In Fig. 2a ist der erste Schneegenerator 2 mit seiner zugehörigen ersten Wasserzufuhrvorrichtung 5 und ersten Luftzuführkanal 4 in das Gehäuse des zweiten Schneegenerators 7 integriert. Der zweite Schneegenerator 7 weist ein schematisch dargestelltes Gebläse 9 auf sowie eine zweite Wasserzufuhrvorrichtung 10, wobei nur eine einzige Düse 11 gezeigt ist. Es können natürlich beliebig viele Düsen 11 angebracht werden. Über die Düse 11 kann Wasser in den Luftstrom des Gebläses 9 eingebracht werden, wo es - hinreichend niedrige Feuchtkugeltemperaturen vorausgesetzt - zu Schnee kristallisiert. Die Schaltvorrichtung 8 gestattet den wahlweisen Betrieb nur des ersten oder zweiten Schneegenerators 2, 7 oder beider gemeinsam. Die nicht beanspruchte Beschneiungsanlage der Fig. 2b unterscheidet sich von jener der Fig. 2a nur dadurch, dass in der Fig. 2b der erste Schneegenerator 2 nicht in das Gehäuse des zweiten Schneegenerators 7 integriert, sondern an dieses angebaut ist. Fig. 2a shows an embodiment of the invention in which the second snow generator 7 is designed in the form of a blower machine. In Fig. 2a the first snow generator 2 with its associated first water supply device 5 and first air supply duct 4 is integrated into the housing of the second snow generator 7. The second snow generator 7 has a schematically illustrated fan 9 and a second water supply device 10, only a single nozzle 11 being shown. Any number of nozzles 11 can of course be attached. Water can be introduced into the air stream of the fan 9 via the nozzle 11, where it crystallizes into snow - provided that the wet bulb temperatures are sufficiently low. The switching device 8 allows the optional operation of only the first or second snow generator 2, 7 or both together. The unclaimed snowmaking system of the Figure 2b differs from that of the Fig. 2a only because in the Figure 2b the first snow generator 2 is not integrated into the housing of the second snow generator 7, but is attached to it.

Fig. 3a zeigt eine Beschneiungsanlage, die nicht beansprucht ist, und bei welcher der zweite Schneegenerator 7 in Form einer Schneilanze ausgebildet ist. Über die zweite Wasserzufuhrvorrichtung 10 wird Wasser zu einer Düsenöffnung 11 des zweiten Schneegenerators 7 gebracht. Hinreichend niedrige Feuchtkugeltemperaturen vorausgesetzt, kristallisiert das über die Düsenöffnung 11 zerstäubte Wasser zu Schnee. Die Schaltvorrichtung 8 gestattet den wahlweisen Betrieb nur des ersten oder zweiten Schneegenerators 2, 7 oder beider gemeinsam. Die nicht beanspruchte Variante der Fig. 3b unterscheidet sich von jener der Fig. 3a nur dadurch, dass in der Fig. 3b der erste Schneegenerator 2 in das Gehäuse bzw. Standrohr des zweiten Schneegenerators 7 integriert ist. Fig. 3a shows a snow-making system which is not claimed and in which the second snow generator 7 is designed in the form of a snow lance. Via the second water supply device 10, water is brought to a nozzle opening 11 of the second snow generator 7. Provided that the wet bulb temperatures are sufficiently low, the water atomized via the nozzle opening 11 crystallizes into snow. The switching device 8 allows the optional operation of only the first or second snow generator 2, 7 or both together. The unclaimed variant of the Figure 3b differs from that of the Fig. 3a only because in the Figure 3b the first snow generator 2 is integrated into the housing or standpipe of the second snow generator 7.

Fig. 4 zeigt eine Beschneiungsanlage, die nicht beansprucht ist, und bei welcher der zweite Schneegenerator 7 in Form einer Nukleatordüse 12 ausgebildet ist, wie sie in der EP 2 071 258 A1 gezeigt ist. Für weitere Details dieses Typs von Schneegenerator sei auf diese Schrift verwiesen. Die Schaltvorrichtung 8 gestattet den wahlweisen Betrieb nur des ersten oder zweiten Schneegenerators 2, 7 oder beider gemeinsam. Auch hier wäre es möglich, den ersten Schneegenerator 2 in das Gehäuse bzw. Standrohr des zweiten Schneegenerators 7 zu integrieren. Fig. 4 shows a snow-making system which is not claimed and in which the second snow generator 7 is designed in the form of a nucleator nozzle 12, as shown in FIG EP 2 071 258 A1 is shown. For further details of this type of snow generator, reference is made to this document. The switching device 8 allows the optional operation of only the first or second snow generator 2, 7 or both together. Here, too, it would be possible to integrate the first snow generator 2 into the housing or standpipe of the second snow generator 7.

Fig. 5 zeigt beispielhaft einen ersten Schneegenerator 2, der als wesentliche Bestandteile die erste Wasserzufuhrvorrichtung 5, den Luftzuführkanal 4, die konvergent-divergente Düse 3 und den Ausbringöffnung 6 umfasst. Ein Teil des gesamten Gehäuses bildet in diesem Ausführungsbeispiel den ersten Luftzuführkanal 4, welcher über den Mündungseingang in die Düse 3 mündet. Diese Düse 3 weist einen konvergenten Bereich K und einen divergenten Bereich D auf, deren Übergangsbereich bzw. Engstelle den kritischen Punkt P bildet. Die Düse 3 selbst ist bevorzugt um die Düsenachse R rotationssymmetrisch ausgebildet. Es wird durch die Wasserzufuhrvorrichtung 5, welche im konvergenten Bereich K angeordnet ist, ein Wasserstrahl WS als Vollstrahl entlang der Düsenachse R in Richtung des kritischen Punkts P gebracht. Im Luftzuführkanal 4 ist durch die Pfeile der sich beschleunigende Luftstrom L dargestellt, welcher im bzw. kurz nach dem kritischen Punkt P durch die Lavalförmigkeit der Düse 3 auf Überschallgeschwindigkeit beschleunigt wird, wodurch eine Zerstäubung des Wasserstrahls WS erfolgt. Fig. 5 shows an example of a first snow generator 2, which comprises the first water supply device 5, the air supply channel 4, the convergent-divergent nozzle 3 and the discharge opening 6 as essential components. In this exemplary embodiment, part of the entire housing forms the first air supply channel 4, which opens into the nozzle 3 via the mouth inlet. This nozzle 3 has a convergent area K and a divergent area D, the transition area or constriction of which forms the critical point P. The nozzle 3 itself is preferably designed to be rotationally symmetrical about the nozzle axis R. It is through the water supply device 5, which is arranged in the convergent area K, a water jet WS as a full jet along the nozzle axis R in the direction of the critical Point P brought. In the air supply channel 4, the arrows show the accelerating air flow L, which is accelerated to supersonic speed at or shortly after the critical point P due to the Laval shape of the nozzle 3, whereby the water jet WS is atomized.

Für weitere Details zur Ausbildung der konvergent-divergent geformten Düse 3 des ersten Schneegenerators 2 sei auf die AT 12 197 U1 verwiesen.For further details on the design of the convergent-divergent nozzle 3 of the first snow generator 2, refer to FIG AT 12 197 U1 referenced.

In keiner Fig. dargestellt sind sonstige Versorgungsleitungen, z. B. für Elektrizität, welche dem Stand der Technik entsprechen. In jeder der Fig. können mehrere erste und/oder zweite Schneegeneratoren 2, 7 als dargestellt vorhanden sein. Der erste Schneegenerator 2 kann mehrere konvergent-divergente Düsen 3 aufweisen.In no figure. Other supply lines, z. B. for electricity, which correspond to the state of the art. In each of the figures, several first and / or second snow generators 2, 7 can be present as shown. The first snow generator 2 can have several convergent-divergent nozzles 3.

Bezugszeichenliste:List of reference symbols:

11
BeschneiungsanlageSnowmaking system
22
erster Schneegeneratorfirst snow generator
33
konvergent-divergent geformte Düse des ersten Schneegeneratorsconvergent-divergent nozzle of the first snow generator
44th
erster Luftzuführkanal des ersten Schneegeneratorsfirst air supply duct of the first snow generator
55
erste Wasserzufuhrvorrichtung des ersten Schneegeneratorsfirst water supply device of the first snow generator
66th
Ausbringöffnung des ersten SchneegeneratorsApplication opening of the first snow generator
77th
zweiter Schneegeneratorsecond snow generator
88th
SchaltvorrichtungSwitching device
99
Gebläse des zweiten SchneegeneratorsSecond snow generator fan
1010
zweite Wasserzufuhrvorrichtung des zweiten Schneegeneratorssecond water supply device of the second snow generator
1111
Düsenöffnung des zweiten SchneegeneratorsNozzle opening of the second snow generator
1212
Nukleatordüse des zweiten SchneegeneratorsNucleator nozzle of the second snow generator
1313
Gehäuse der BeschneiungsanlageHousing of the snowmaking system
1414th
Steuer- oder RegelvorrichtungControl or regulating device
1515th
Sensor zur Erfassung von UmgebungsdatenSensor for recording environmental data
1616
Sensor zur Erfassung von Betriebsdaten der BeschneiungsanlageSensor for recording operating data of the snowmaking system

Claims (9)

  1. Snowmaking device (1) having a first snow generator (2), which comprises:
    - a nozzle (3) formed in a convergent-divergent way, which in particular is formed rotationally symmetric around a nozzle axis
    - a first air supply channel (4) by which a stream of air can be brought into the nozzle (3)
    - a first water supply device (5) by which water (W) can be brought into the nozzle (3) which is formed in a convergent-divergent way in the form of a water jet (WS) which is at least substantially parallel to the nozzle axis (R)
    - a delivery opening (6) which is connected to the divergently formed area of the nozzle (3)
    wherein the snowmaking device (1) comprises a second snow generator (7) for which a second water supply device (10) is provided, wherein the first and the second snow generator (2, 7) can be operated independently from each other to generate snow and at least one switching device (8) is provided by which the first and/or the second water supply device (5, 10) can be activated or de-activated, and wherein the second snow generator (7) comprises at least one blower (9), wherein water can be brought from the second water supply device (10) into the stream of air of the at least one blower (9), wherein the first snow generator (2) is integrated into a housing of the second snow generator (7) in such a way that it is situated in the stream of air of the blower (9) characterized in that
    - the snowmaking device comprises an open or closed loop control device (14) by which the switching device (8) can be switched and in that
    - at least one sensor (15) is provided to acquire data of the surroundings, preferably temperature and/or humidity of surrounding air, the signals of which can be delivered to the open or closed loop control device (14) and/or at least one sensor (16) is provided to acquire operational data of the snowmaking device the signals of which can be delivered to the open or closed loop control device (14) the sensor (16) being arranged
    • in the air supply channel (4) of the first snow generator and/or
    • in the first and/or second water supply device (5, 8)
    wherein the open or closed loop control device (14) switches the switching device (8) in dependence on the delivered signals.
  2. Snowmaking device according to claim 1, wherein in the first snow generator (2) the water jet (WS) can be brought into the nozzle (3) which is formed in a convergent-divergent way by the first water supply device (5) coaxially to the nozzle axis (R), wherein preferably the first water supply device (5) comprises an in particular nozzle-shaped water exit opening which is arranged in the convergent area (K).
  3. Snowmaking device according to at least one of the preceding claims, wherein the nozzle (3) which is formed in a convergent-divergent way of the first snow generator (2) is formed laval-shaped, wherein the transition from the convergent (K) to the divergent area (D) forms the critical point (P) of the laval-shaped nozzle (3) in or a short way after which, respectively, the air stream (L) which can be brought in reaches supersonic velocity.
  4. Snowmaking device according to claim 3, wherein the convergent area (K) of the laval-shaped nozzle (3) is shaped as a curve in a longitudinal cut.
  5. Snowmaking device according to claim 3 or 4, wherein the water jet (WS) can be brought in in direction of the critical point (P), preferably into the critical point (P), of the laval-shaped nozzle (3).
  6. Snowmaking device according to at least one of claims 3 to 5, wherein the water jet (WS) reaches the critical point (P) of the laval-shaped nozzle (3) in the form of a full jet.
  7. Snowmaking device according to at least one of the preceding claims, wherein the second snow generator (7) of the second water supply device (10) has at least one nozzle opening (11).
  8. Snowmaking device according to at least one of the preceding claims, wherein the second snow generator (7) comprises at least one nucleator nozzle (12) for generation of ice nuclei, wherein water from the second water supply device (10) can be brought into contact with the ice nuclei.
  9. Snowmaking device according to at least one of the preceding claims, wherein the air pressure which can be generated by a source for air pressure in the air supply channel (4) of the first snow generator (2) can be open or closed loop controlled by suitable measures.
EP15174831.6A 2015-07-01 2015-07-01 Artificial snowblower Active EP3112782B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL15174831T PL3112782T3 (en) 2015-07-01 2015-07-01 Artificial snowblower
EP15174831.6A EP3112782B1 (en) 2015-07-01 2015-07-01 Artificial snowblower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15174831.6A EP3112782B1 (en) 2015-07-01 2015-07-01 Artificial snowblower

Publications (2)

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EP3112782A1 EP3112782A1 (en) 2017-01-04
EP3112782B1 true EP3112782B1 (en) 2020-09-02

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ID=53510704

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Application Number Title Priority Date Filing Date
EP15174831.6A Active EP3112782B1 (en) 2015-07-01 2015-07-01 Artificial snowblower

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EP (1) EP3112782B1 (en)
PL (1) PL3112782T3 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945567A (en) * 1975-07-17 1976-03-23 Gerry Rambach Snow making apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA791579A (en) * 1965-01-22 1968-08-06 Atlas Copco Aktiebolag Method and means for making snow
WO2009043092A1 (en) * 2007-10-04 2009-04-09 Ballistic Australia Pty Ltd Snow making equipment
EP2071258A1 (en) 2007-12-14 2009-06-17 Bächler Top Track AG Nucleator nozzle, use of a nucleator nozzle, snow cannon, snow blower and method for producing ice nuclei and artificial snow
AT12197U1 (en) 2010-03-05 2011-12-15 Wille Frank SNOW GENERATOR FOR A SNOWING SYSTEM

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945567A (en) * 1975-07-17 1976-03-23 Gerry Rambach Snow making apparatus

Also Published As

Publication number Publication date
PL3112782T3 (en) 2021-04-06
EP3112782A1 (en) 2017-01-04

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