DE4131857A1 - Snow cannon with cylindrical housing open on both sides - contains air blower and compressor for producing compressed air, together with nozzle crown discharging water and air mixt. - Google Patents

Snow cannon with cylindrical housing open on both sides - contains air blower and compressor for producing compressed air, together with nozzle crown discharging water and air mixt.

Info

Publication number
DE4131857A1
DE4131857A1 DE19914131857 DE4131857A DE4131857A1 DE 4131857 A1 DE4131857 A1 DE 4131857A1 DE 19914131857 DE19914131857 DE 19914131857 DE 4131857 A DE4131857 A DE 4131857A DE 4131857 A1 DE4131857 A1 DE 4131857A1
Authority
DE
Germany
Prior art keywords
compressor
air
snow cannon
housing
cooling coils
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.)
Granted
Application number
DE19914131857
Other languages
German (de)
Other versions
DE4131857C2 (en
Inventor
Hans Richter
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.)
STELLA MARIS AG
Original Assignee
STELLA MARIS AG
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 STELLA MARIS AG filed Critical STELLA MARIS AG
Priority to DE19914131857 priority Critical patent/DE4131857A1/en
Publication of DE4131857A1 publication Critical patent/DE4131857A1/en
Application granted granted Critical
Publication of DE4131857C2 publication Critical patent/DE4131857C2/de
Granted 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
    • F25C2303/0481—Snow making by using means for spraying water with the use of compressed air

Abstract

The compressor is of the screw type (6) and is flanged on to the blower shaft (5). The air compressed by the compressor is fed via a cooling hose (11) on the inside of the housing to at least one nozzle crown. The compressor fits on the end of the blower shaft facing the at least one nozzle crown. Before the cooling hose is fitted an oil separator (10), and the hose runs spirally. The lubricating oil of the screw compressor is fed through further cooling hoses (12) on the inside of the housing (1) and these also run spirally. USE/ADVANTAGE - A cannon for clearance of snow in which the operative noise is considerably reduced.

Description

Die Erfindung betrifft eine Schneekanone nach dem Oberbegriff des Anspruches 1.The invention relates to a snow cannon according to the preamble of claim 1.

Zur Erzeugung der komprimierten Luft für das aus den Düsen austretende Wasser- Luftgemisch dient bislang ein Kolbenkompressor, der von einem Elektromotor an­ getrieben wird, wobei der Elektromotor und der Kompressor auf dem Schlitten der Schneekanone angeordnet sind. Diese bekannte Ausbildung weist eine Reihe von Nachteilen auf. Als Hauptnachteil ist anzuführen die erhebliche Geräuschbil­ dung, die insbesondere vom Kolbenkompressor ausgeht. Erforderlich ist daher eine Geräuschdämmung. Für den Antrieb des Kolbenkompressors ist ein gesonderter Elektromotor erforderlich. Durch den Kompressor wird der Schlitten der Schneeka­ none in Schwingungen versetzt, was insbesondere beim Betrieb der Schneekanone in steilen Gelände nachteilig ist, da die Gefahr besteht, daß sich der Schlitten infolge der Vibrationen ungewollt in Bewegung setzt. Weiterhin ist von Nachteil, daß trotz des Vorsehens eines Ölabscheiders die komprimierte Luft mit Schmieröl des Kom­ pressors versetzt ist.To generate the compressed air for the water emerging from the nozzles So far, a piston compressor has been used by an electric motor to mix the air is driven, with the electric motor and the compressor on the carriage the snow cannon are arranged. This known training has a number of disadvantages. The main disadvantage is the considerable noise level dung, which comes in particular from the piston compressor. A is therefore required Noise insulation. There is a separate one for driving the piston compressor Electric motor required. The Schneeka sledge is turned by the compressor none vibrates, which is particularly important when operating the snow cannon steep terrain is disadvantageous, since there is a risk that the carriage as a result that unintentionally sets vibrations in motion. Another disadvantage is that despite the provision of an oil separator, the compressed air with lubricating oil of the com pressors is offset.

Es besteht die Aufgabe, die Schneekanone so auszubilden, daß insbesondere die Lärmentwicklung erheblich vermindert wird.The task is to design the snow cannon so that in particular the Noise is significantly reduced.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruches 1. Vorteilhafte Ausgestaltungen sind den Unteransprüchen entnehmbar.This object is achieved by the characterizing features of claim 1. Advantageous refinements can be found in the subclaims.

Ein Ausführungsbeispiel wird nachfolgend anhand der Zeichnung näher erläutert. Diese zeigt schematisch einen Vertikalschnitt durch das Gehäuse der Schneekanone.An embodiment is explained below with reference to the drawing. This shows schematically a vertical section through the housing of the snow cannon.

Im kreiszylindrischen Gehäuse 1, das an beiden Seiten offen ist, ist in bekannter Weise ein Elektromotor 2 zentrisch angeordnet, der ein Lüfterrad 3 antreibt. Der Motor 2 hat beispielsweise eine Leistung von 15 kW. Der Elektromotor 2 und das Luftrad 3 bilden das Luftgebläse, das einen Luftstrom in Pfeilrichtung erzeugt. Am rechtsseitigen Gehäuseende 4 ist innenseitig mindestens ein nicht dargestell­ ter Düsenkranz angeordnet. Üblicherweise werden zwei oder mehrere Düsenkränze vorgesehen.In the circular-cylindrical housing 1 , which is open on both sides, an electric motor 2 , which drives a fan wheel 3 , is arranged centrally in a known manner. The engine 2 has an output of 15 kW, for example. The electric motor 2 and the air wheel 3 form the air blower, which generates an air flow in the direction of the arrow. At the right-hand end 4 of the housing, at least one nozzle ring (not shown ) is arranged on the inside. Usually two or more nozzle rings are provided.

Auf dem rechten Ende der Welle 5 des Elektromotors 2 ist ein Schraubenkompressor 6 angeflanscht. Dieser Schraubenkompressor 6 ist üblicher Bauart und kann eine Nieder- und Hochdruckstufe aufweisen. Das Gehäuse des Schraubenkompressors 6 ist starr innerhalb des Gehäuses 1 angeordnet.A screw compressor 6 is flanged onto the right end of the shaft 5 of the electric motor 2 . This screw compressor 6 is of a conventional design and can have a low and high pressure stage. The housing of the screw compressor 6 is rigidly arranged within the housing 1 .

An den Kompressor 6 ist eine durch das Gehäuse 1 geführte Luftansaugleitung 7 angeschlossen, in welcher ein Luftfilter 8 zwischengeschaltet ist. Die vom Schrauben­ kompressor 6 komprimierte Luft gelangt über eine Saugleitung 9 zu einem gehäuse­ seitigen Ölabscheider 10. Vom Ölabscheider 10 gelangt die Luft zu an der Gehäuse­ innenseite angeordnete Kühlschlangen 11, die dort wendelförmig verlaufen. Am Ende der Kühlschlangen 11 wird die komprimierte Luft den Düsen zugeführt.An air intake line 7 , which is guided through the housing 1 and in which an air filter 8 is interposed, is connected to the compressor 6 . The air compressed by the screw compressor 6 reaches a housing-side oil separator 10 via a suction line 9 . The air passes from the oil separator 10 to cooling coils 11 arranged on the inside of the housing, which run there helically. At the end of the cooling coils 11 , the compressed air is fed to the nozzles.

Das im Ölabscheider abgeschiedene Schmieröl des Schraubenkompressors gelangt von dort zu weiteren, wendelförmig verlaufenden und an der Gehäuseinnenseite angeordneten Kühlschlangen 12 und von dort über eine Ölzufuhrleitung 13 zum Schraubenkompressor 6.The lubricating oil of the screw compressor separated in the oil separator passes from there to further, helically extending cooling coils 12 arranged on the inside of the housing and from there via an oil supply line 13 to the screw compressor 6 .

Wie ersichtlich, benötigt der Schraubenkompressor 6 keinen eigenen Antrieb, sondern wird vom Elektromotor 2 des Luftgebläses angetrieben. Der Schraubenkom­ pressor 6 erzeugt im Vergleich zu einem Kolbenkompressor weitaus weniger Lärm, so daß die sonst übliche Geräuschdämpfung entfallen kann. Zudem ist die kom­ primierte Luft weitaus weniger ölhaltig als dies bei Verwendung eines Kolbenkom­ pressors der Fall ist. Da der Schraubenkompressor 6 von der Luft des Luftgebläses umströmt wird, ist seine Kühlung ohne zusätzliche Maßnahmen sichergestellt. Da der Schraubenkompressor 6 nur umlaufende Teile besitzt, sind die von ihm ausge­ henden Vibriationen vernachlässigbar gering. Die vom Kompressor 6 komprimierte und somit erwähnte Luft wird beim Durchgang durch die Kühlschlangen 11 intensiv durch den Luftstrom gekühlt, der vom Luftgebläse 2, 3 erzeugt wird. Gleiches gilt für das Schmieröl bei seinem Durchgang durch die weiteren Kühlschlangen 12.As can be seen, the screw compressor 6 does not need its own drive, but is driven by the electric motor 2 of the air blower. The screw compressor 6 produces much less noise than a piston compressor, so that the otherwise usual noise reduction can be eliminated. In addition, the compressed air is far less oil-containing than is the case when using a piston compressor. Since the air from the air blower flows around the screw compressor 6 , its cooling is ensured without additional measures. Since the screw compressor 6 has only rotating parts, the vibrations emanating from it are negligible. The air compressed by the compressor 6 and thus mentioned is intensively cooled by the air flow generated by the air blower 2 , 3 as it passes through the cooling coils 11 . The same applies to the lubricating oil as it passes through the further cooling coils 12 .

Claims (7)

1. Schneekanone mit einem beidseits offenen zylindrischen Gehäuse, einem darin angeordneten Luftgebläse, einem Kompressor zur Erzeugung komprimierter Luft und mit mindestens einem Düsenkranz, aus dessen Düsen ein Wasser- Luftgemisch austritt, dadurch gekennzeichnet, daß der Kompressor ein Schraubenkompressor (6) ist, der auf der Gebläsewelle (5) angeflanscht ist.1. Snow cannon with a cylindrical housing open on both sides, an air blower arranged therein, a compressor for generating compressed air and with at least one nozzle ring, from whose nozzles a water / air mixture emerges, characterized in that the compressor is a screw compressor ( 6 ) which is flanged onto the blower shaft ( 5 ). 2. Schneekanone nach Anspruch 1, dadurch gekennzeichnet, daß die vom Schraubenkompressor (6) komprimierte Luft über an der Innenseite des Gehäuses (1) angeordnete Kühlschlangen (11) dem mindestens einen Düsen­ kranz zugeführt wird.2. Snow cannon according to claim 1, characterized in that the compressed by the screw compressor ( 6 ) air via the inside of the housing ( 1 ) arranged cooling coils ( 11 ) is supplied to the at least one nozzle ring. 3. Schneekanone nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Schraubenkompressor (6) auf dem dem mindestens einen Düsenkranz zuge­ wandten Ende der Gebläsewelle (5) angeordnet ist.3. Snow cannon according to claim 1 or 2, characterized in that the screw compressor ( 6 ) on the at least one nozzle ring facing the end of the fan shaft ( 5 ) is arranged. 4. Schneekanone nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß vor den Kühlschlangen (11) ein Ölabscheider (10) angeordnet ist.4. Snow cannon according to claim 2 or 3, characterized in that an oil separator ( 10 ) is arranged in front of the cooling coils ( 11 ). 5. Schneekanone nach Anspruch 2, dadurch gekennzeichnet, daß die Kühl­ schlangen (11) wendelförmig verlaufen.5. Snow cannon according to claim 2, characterized in that the cooling coils ( 11 ) extend helically. 6. Schneekanone nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Schmieröl des Schraubenkompressors durch weitere Kühlschlangen (12) an der Innenseite des Gehäuses (1) geführt ist.6. Snow cannon according to one of claims 1 to 5, characterized in that the lubricating oil of the screw compressor is guided through further cooling coils ( 12 ) on the inside of the housing ( 1 ). 7. Schneekanone nach Anspruch 6, dadurch gekennzeichnet, daß die weiteren Kühlschlangen (12) wendelförmig verlaufen.7. Snow cannon according to claim 6, characterized in that the further cooling coils ( 12 ) extend helically.
DE19914131857 1991-09-25 1991-09-25 Snow cannon with cylindrical housing open on both sides - contains air blower and compressor for producing compressed air, together with nozzle crown discharging water and air mixt. Granted DE4131857A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914131857 DE4131857A1 (en) 1991-09-25 1991-09-25 Snow cannon with cylindrical housing open on both sides - contains air blower and compressor for producing compressed air, together with nozzle crown discharging water and air mixt.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914131857 DE4131857A1 (en) 1991-09-25 1991-09-25 Snow cannon with cylindrical housing open on both sides - contains air blower and compressor for producing compressed air, together with nozzle crown discharging water and air mixt.

Publications (2)

Publication Number Publication Date
DE4131857A1 true DE4131857A1 (en) 1993-04-08
DE4131857C2 DE4131857C2 (en) 1993-07-15

Family

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DE19914131857 Granted DE4131857A1 (en) 1991-09-25 1991-09-25 Snow cannon with cylindrical housing open on both sides - contains air blower and compressor for producing compressed air, together with nozzle crown discharging water and air mixt.

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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7546960B2 (en) 2001-12-11 2009-06-16 Nivis Gmbh-Srl Snow making apparatus and method for operating the same
WO2015198163A1 (en) 2014-06-26 2015-12-30 Technoalpin Holding S.P.A. A fluid-jet emitting device
EP2169333A3 (en) * 2008-09-26 2017-09-27 IAG Industrie Automatisierungsgesellschaft mbH Snow cannon

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1259262B (en) * 1992-07-31 1996-03-11 AUTOMATIC LOW PRESSURE SYSTEM FOR DINEVE SCHEDULED PRODUCTION
DE102016011432A1 (en) 2016-09-21 2018-03-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Screw compressor for a commercial vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0277933A2 (en) * 1987-02-03 1988-08-10 Elektra Bregenz Aktiengesellschaft Artificial-snow making device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0277933A2 (en) * 1987-02-03 1988-08-10 Elektra Bregenz Aktiengesellschaft Artificial-snow making device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7546960B2 (en) 2001-12-11 2009-06-16 Nivis Gmbh-Srl Snow making apparatus and method for operating the same
EP2169333A3 (en) * 2008-09-26 2017-09-27 IAG Industrie Automatisierungsgesellschaft mbH Snow cannon
WO2015198163A1 (en) 2014-06-26 2015-12-30 Technoalpin Holding S.P.A. A fluid-jet emitting device
US20170153053A1 (en) * 2014-06-26 2017-06-01 Technoalpin Holding S.P.A. A fluid-jet emitting device
CN106912198A (en) * 2014-06-26 2017-06-30 天冰控股公司 Fluid jet spraying equipment
US10234187B2 (en) 2014-06-26 2019-03-19 Technoalpin Holding S.P.A. Fluid-jet emitting device
CN106912198B (en) * 2014-06-26 2019-10-25 天冰控股公司 Fluid jet spraying equipment

Also Published As

Publication number Publication date
DE4131857C2 (en) 1993-07-15

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