EP4357705A1 - Apparatur zur herstellung von kunstschnee - Google Patents

Apparatur zur herstellung von kunstschnee Download PDF

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Publication number
EP4357705A1
EP4357705A1 EP23204102.0A EP23204102A EP4357705A1 EP 4357705 A1 EP4357705 A1 EP 4357705A1 EP 23204102 A EP23204102 A EP 23204102A EP 4357705 A1 EP4357705 A1 EP 4357705A1
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EP
European Patent Office
Prior art keywords
equipment
refrigerating cylinder
refrigerating
side wall
outer side
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
EP23204102.0A
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English (en)
French (fr)
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EP4357705B1 (de
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 SpA
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Technoalpin SpA
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Publication date
Application filed by Technoalpin SpA filed Critical Technoalpin SpA
Publication of EP4357705A1 publication Critical patent/EP4357705A1/de
Application granted granted Critical
Publication of EP4357705B1 publication Critical patent/EP4357705B1/de
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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
    • F25C1/00—Producing ice
    • F25C1/12—Producing ice by freezing water on cooled surfaces, e.g. to form slabs
    • F25C1/14—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes
    • F25C1/142—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes from the outer walls of cooled bodies
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine

Definitions

  • the present invention relates to artificial snowmaking equipment, preferably indoor.
  • Such snowmaking systems can be used in environments with a large surface area for the preparation and fitting out of downhill slopes for skiers and snowboarders, or in rooms with more contained dimensions for therapeutic or well-being purposes, such as snow cabins in wellness centres in which a typically winter climate is recreated to offer guests a shiver of revitalizing cold after sauna heat treatments.
  • traditional snow cabins are defined by a room inside which the snowfall is recreated artificially, generated by a special snowmaking device arranged on the top of the room and generally comprising nozzles for the generation and dispersion of artificial snow.
  • the snowmaking systems present to date on the market must be activated with prior notice so as to be able to form a minimum accumulation of snow with which they can simulate the falling of snowflakes.
  • the current snowmaking systems must have already produced a minimum amount of snow accumulated on a support, so that a scraper device can be positioned in contact and perform scraping such as to produce the generation of snowflakes which are free to fall.
  • the scraper device to comprise a complex and movable structure able to adapt its distance from the pile of snow accumulated in an optimal manner for generating snowflakes.
  • the technical task underlying the present invention is to propose artificial snowmaking equipment, preferably indoor, which obviates the drawbacks in the known art as described above.
  • an object of the present invention is to provide artificial snowmaking equipment (also called technical snowmaking) with a reduced energy consumption and, at the same time, with an optimised snowmaking system.
  • artificial snowmaking equipment also called technical snowmaking
  • Another object of the present invention is to provide artificial snowmaking equipment which is capable of producing high-quality snow. Therefore, specifically, the invention has the object of providing artificial snowmaking equipment which is capable of making artificial snow with the same properties and quality of natural snow so as to simulate the fall of the snow or a snowfall in an indoor environment, where the cooling of the surrounding environment is not essential.
  • a further object of the present invention is to provide artificial snowmaking equipment which is configured to improve the effect of snow fall and, further, to bring the quality of artificially produced snow closer to that of naturally produced snow.
  • the invention relates to artificial snowmaking equipment, preferably indoor.
  • the equipment comprises a refrigerating cylinder configured to rotate about a longitudinal axis thereof along which it extends, movement means configured to rotate the aforesaid refrigerating cylinder, a cooling unit operatively configured to cool the cylindrical wall of the refrigerating cylinder (i.e., an outer side wall) to a freezing temperature, a water supply system configured to wet at least part of the outer side wall of the refrigerating cylinder with a predetermined quantity of water so as to create an ice layer on the same outer side wall and, furthermore, at least one scraper device configured to scrape at least part of the ice layer so as to obtain an artificial snow fall.
  • a refrigerating cylinder configured to rotate about a longitudinal axis thereof along which it extends
  • movement means configured to rotate the aforesaid refrigerating cylinder
  • a cooling unit operatively configured to cool the cylindrical wall of the refrigerating cylinder (i.e., an outer side wall) to a freezing temperature
  • the refrigerating cylinder internally has a gap or inner ducts extending along an inner surface of the same refrigerating cylinder, which is opposite the outer side wall.
  • a gap or such inner ducts are connected to the cooling unit so as to receive a flow of a refrigerating substance to be conveyed inside the gap or inner ducts to cool the outer side wall of the refrigerating cylinder.
  • the present invention is directed to artificial snowmaking equipment, preferably indoor, which with reference to the figures, has been generically indicated with the number 10. Any modifications or variants which, in the light of the description, would be evident to the person skilled in the art must be considered as falling within the scope of protection established by the present invention, according to considerations of technical equivalence.
  • Figures 1a-1c show artificial snowmaking equipment 10, preferably indoor, which can also be used in outdoor contexts.
  • the equipment 10 comprises a refrigerating cylinder 20 configured to rotate about a longitudinal axis L along which it extends, movement means, preferably motorized, configured to rotate the same refrigerating cylinder 20, a cooling unit 40 (better illustrated in figure 6 ) operatively connected to the refrigerating cylinder 20 and, furthermore, configured to cool an outer side wall 21 (the cylindrical one) of the refrigerating cylinder 20 to a freezing temperature, preferably below 0° C, a water supply system 50 configured to bring a predetermined quantity of water in contact with at least part of the outer side wall 21 of the refrigerating cylinder 20 so as to wet it in order to create an ice layer on the same outer side wall 21, at least one scraper device 60 configured to scrape at least part of the ice layer so as to obtain an artificial snow fall.
  • movement means preferably motorized, configured to rotate the same refrigerating cylinder 20
  • a cooling unit 40 (better illustrated in figure 6 ) operatively connected to the refrigerating cylinder 20
  • the refrigerating cylinder 20 internally has a gap 22 (or inner ducts) extending along an inner surface of the same refrigerating cylinder 20, which is opposite the outer side wall 21.
  • a gap 22 is connected to the cooling unit 40 so that a flow of a refrigerating substance is conveyed inside the same gap 22 so as to cool the outer side wall 21 of the refrigerating cylinder 20.
  • the equipment 10 is configured to make artificial snow fall by solidifying the water present on the outer side wall 21 of the refrigerating cylinder 20.
  • the refrigerating cylinder 20 is connected to a cooling unit 40 so that its outer side wall 21 is at a temperature such as to allow the almost instantaneous freezing of the water which wets it, supplied by a water supply system 50.
  • the refrigerating cylinder 20 is advantageously kept in rotation by a movement means about a longitudinal axis L thereof (preferably horizontal) so that the ice layer formed on the side wall 21 moves towards a scraper device 60 (integral with a support frame 11 of the equipment 10) with which it interacts.
  • the mechanical contact between the scraper device 60 and the ice layer leads to the formation of artificial snow which, by gravity, is capable of falling into a predetermined collection zone.
  • the movement means comprises a motor or a gear reducer operatively connected to the rotating shaft on which the refrigerating cylinder 20 is installed so as to rotate the latter about the longitudinal axis L.
  • the refrigerating cylinder 20 internally has a gap 22 or inner ducts.
  • the gap 22 for the sake of descriptive simplicity, only the preferred embodiment comprising the gap 22 and the features related to the latter will be mentioned.
  • the alternative embodiment comprising the inner ducts is achievable with the same concepts once the gap has been replaced with one or more inner ducts extending along the inner surface of the refrigerating cylinder 20, i.e., the surface opposite the outer side wall 21.
  • the gap 22 extends internally to the refrigerating cylinder 20, parallel to the longitudinal axis L, continuously along the inner surface thereof.
  • the gap 22 is substantially delimited between the surface of the refrigerating cylinder 20 (i.e., the outer side wall 21 and the inner surface, the two opposite faces of the same element) and a cylindrical partition arranged internally of the same refrigerating cylinder 21.
  • the gap 22 defines a volume having the shape of a hollow cylinder having a reduced radial dimension with respect to the internal volume of the refrigerating cylinder 20. That is, the thickness of the gap 22 is less than the dimension of the radius of the refrigerating cylinder.
  • the operation of the gap 22 is to allow the flow of the refrigerating substance which, in contact with the outer side wall 21, is thus capable of refrigerating the latter to allow the freezing of the water. Consequently, the thickness of the gap 22 is preferably less than the entire radius of the refrigerating cylinder 20 so as to concentrate the refrigerating effect on the outer side wall 21.
  • the cooling unit 40 comprises a tank 41 for containing a refrigerating substance conveyable at least towards the refrigerating cylinder 20 to cool the outer side wall 21.
  • the refrigerating substance is preferably contained in a special tank 41 so that control and maintenance operations can be carried out more easily.
  • the refrigerating cylinder 20 comprises a delivery duct 23 for the refrigerating substance interposed between the tank 41 and the gap 22 and an outlet duct 24 for the refrigerating substance.
  • the delivery duct 23 and the outlet duct 24 are integrated parts of a rotating joint so as to allow the conveyance of the refrigerating substance to the gap 22 or from the gap 22.
  • the delivery duct 23 (or, alternatively, the return duct 24) is obtained internally to the rotating shaft on which the refrigerating cylinder 20 is installed.
  • the cooling unit 40 is capable of conveying the refrigerating substance towards the gap 22.
  • the delivery duct 23 and/or the outlet duct 24 comprise a portion arranged inside the refrigerating cylinder 20 which extends substantially along the longitudinal axis L.
  • figure 2 illustrates a possible embodiment of the refrigerating cylinder 20.
  • a part of the delivery circuit 23 is obtained along the rotating shaft of the refrigerating cylinder 20 itself, i.e., along the longitudinal axis L. Consequently, a part of the outlet duct 24 of the refrigerating substance also extends parallel to the aforesaid rotating shaft, along a circular section surrounding a part of the delivery duct 23.
  • the gap 22 is interposed in fluid communication with the delivery duct 23 and the outlet duct 24, preferably by means of a rotating joint.
  • the inversion of the flow direction of the refrigerating substance necessarily entails the inversion between the delivery duct 23 and the outlet duct 24, keeping the structure illustrated in figure 2 unchanged.
  • the space between the rotating shaft and the gap 22 is empty or has only air so as to provide an insulating layer which greatly reduces a heat exchange with the gap 22 and the delivery duct 23/the outlet duct 24.
  • the refrigerating cylinder 20 comprises two thermally insulating head portions 25, 26.
  • the head portions 25, 26 are arranged transversely to the longitudinal axis L and opposite with respect to the outer side wall 21.
  • the cooling energy is advantageously transferred only along the outer side wall 21 to prevent a layer of ice from forming also on the two head portions 25, 26 and, therefore, optimising the exploitation of the energy used for cooling.
  • the two head portions 25, 26 are made of Teflon or another material capable of ensuring thermal insulation.
  • at least the outer side wall 21 of the refrigerating cylinder 20 is made of aluminium or any material (preferably metallic) having a thermal conductivity comparable to or better than that of aluminium.
  • the outer side wall 21 of the refrigerating cylinder 20 has a rough conformation.
  • the outer side wall 21 of the refrigerating cylinder 20 is sandblasted (other equivalent processing techniques can also be used) so as to create a wrinkled surface, having imperfections (in other words, not perfectly smooth) so as to improve the adhesion of the ice layer.
  • the scraper device 60 is operatively connected to the cooling unit 40 to be maintained at a low temperature, preferably below 0° C.
  • the scraper device 60 does not alter the temperature of the ice layer with which it comes into contact and, therefore, does not alter the quality of the snowflakes produced.
  • maintaining the scraper device 60 at a low temperature, preferably below 0° C allows to prevent the artificial snow produced by the same scraper device 60 from dissolving, forming liquid water which would tend to retain the same artificial snow produced (i.e., preventing the detachment thereof and, therefore, the fall by gravity).
  • the artificial snow made by the scraper device 60 is obtained only thanks to its mechanical interaction with the ice layer and not due to an increase in temperature and, therefore, a partial melting of the ice.
  • the scraper device 60 has the function of scraping at least a part of the ice layer which forms on the outer side wall 21 of the refrigerating cylinder 20, avoiding any local rise in temperature.
  • the scraper device 60 is configured to remove only a reduced thickness of the ice layer present on the outer side wall 21 of the refrigerating cylinder 20.
  • the ice layer maintained on the refrigerating cylinder 20 is advantageously capable of providing a base on which a further ice layer is more easily formed which the scraper device 60 is capable of removing to generate artificial snow.
  • the scraper device 60 comprises a support element 61 along which a cooling duct 62 is made and a cutting element 63 fixed to the support element 61 to be in contact with the cooling duct 62.
  • the cooling duct 62 is in fluid communication with the cooling unit 40 so as to cool the cutting element 63.
  • FIG 3a illustrates a possible embodiment of the scraper device 60.
  • the cooling duct 62 is connected to the cooling unit 40 so as to receive a flow of refrigerating substance from the latter which is adapted to lower the temperature of the cutting element 63 with which it is in direct contact.
  • the cutting element 63 is configured to be constrained to the support element 61 so that the blade of the cutting element 63 is free and faces the outer side wall 21 of the refrigerating cylinder 20.
  • the support element 61 is advantageously surface machined to contain the cooling duct 62 and coupling points adapted to fix the cutting element 63.
  • the support element 61 has ends adapted to define the connection with a support frame 11 of the entire equipment 10.
  • the support element 61, the cooling duct 62 and the cutting element 63 are made of metallic material to maximise the heat exchange therebetween.
  • Figure 3b illustrates the side section of the scraper device 60 when mounted on the equipment 10 in which the arrangement of the cutting element 63 with respect to the outer side wall 21 of the refrigerating cylinder 20 is visible.
  • the water supply system 50 comprises a water containment tank 51 extending parallel to the longitudinal axis L.
  • the tank 51 defines a containment volume adapted to contain a predetermined level of water and at least part of the refrigerating cylinder 21 so that the latter is at least partially immersed in the water.
  • FIGs 1c and 4 illustrate a possible and preferred embodiment of the water supply system 50.
  • the refrigerating cylinder 20 is preferably immersed, at least in part, inside the containment volume of the tank 51.
  • a quantity of water is advantageously conveyed inside the tank 51.
  • the refrigerating cylinder 20 is therefore partially immersed in water and, therefore, its outer side wall 21 is wet.
  • the movement by rotation of the refrigerating cylinder 20 involves the interaction with the water of the entire outer side wall 21 which, therefore, will be entirely wet at the end of an entire rotation of the refrigerating cylinder 20.
  • the refrigerating cylinder 20 is advantageously configured to freeze the water present on its outer side wall 21 and, therefore, form an ice layer which the scraper device 60 is capable of removing at least in part so as to make artificial snow.
  • the tank 51 comprises a water distribution channel 52 operatively connected to a water source (not illustrated) and, furthermore, configured to homogeneously distribute the predetermined quantity of water in the same tank 51.
  • the distribution channel 52 is arranged on a bottom of the tank 51 and has an elongated shape along a direction parallel to the longitudinal axis L.
  • the distribution channel 52 has a closed shape and there is a plurality of openings 55 useful for the distribution of water along its extension. Even more preferably, the distribution channel 52 also has a tapered conformation whereby its thickness (i.e., its section along which the water flows) is gradually reduced along the tank so as to obtain the same outlet pressure (and therefore also the same flow rate) of the water from the aforesaid openings 55.
  • the water present inside the tank 51 is advantageously homogeneously distributed so that the temperature is also homogeneous for the entire containment volume and there are no points with different temperature gradients (higher and/or lower) along the tank 51.
  • the tank 51 has a supply opening 54 obtained laterally and at the distribution channel 52 so that the water flow can be conveyed there, for example, from a water source such as the water mains or a well.
  • the water supply system 50 is configured to constantly supply water in the tank 51.
  • the tank 51 has a water drain opening 53.
  • the drain opening 53 is obtained above the supply opening 54.
  • the water supply system 50 is operatively connected to the cooling unit 40 so as to perform a pre-cooling of the water to be conveyed in the tank 51 and/or directly on the outer side wall 21 of the refrigerating cylinder 20.
  • the equipment 10 can comprise a cooling device 90 configured to perform the pre-cooling of the water to be conveyed in the tank 51 and/or directly on the outer side wall 21 of the refrigerating cylinder 20.
  • the cooling device 90 comprises a heat exchanger.
  • the heat exchanger comprises a containment body 91 in which a plurality of plates 92 are arranged for the exchange of heat between the water and the refrigerating substance.
  • valves for the inlet of water and refrigerating substance 93,94 there are valves for the outlet of cooled water and refrigerating substance 95,96.
  • the refrigerating substance is configured to flow within the plates 92 arranged in fluid communication with each other and in sequence with each other.
  • the water is instead configured to flow between the plates 92 and, more precisely, along the ribs 97 formed by the free space present between the plates 92. That is, the plates 92 are arranged so as to make the ribs 97 of free space therebetween, through which the water is capable of flowing and, therefore, perform the heat exchange with the refrigerating substance flowing inside the aforesaid plates 92.
  • the movement means is configured to rotate the refrigerating cylinder 20 at a constant speed and/or at a variable speed.
  • the rotation speed of the refrigerating cylinder 20 can be varied as a function of the amount of artificial snow to be produced, i.e., as a function of the quantity of water to be adhered to the outer side wall 21 or also as a function of the context where the system is used (ambient temperatures and temperatures of the refrigerating substance).
  • the equipment 10 comprises an adjustment means operatively connected to the scraper device 60 and, in addition, configured to vary the distance and/or to vary the inclination of the same scraper device 60 with respect to the outer side wall 21 of the refrigerating cylinder 20.
  • the scraper device 60 is configured to only cut a part of the ice layer present on the outer side wall 21. That is, the scraper device 60 is preferably configured to thin the ice layer and not to completely remove it from the refrigerating cylinder 20. Thereby, the ice layer remaining on the outer side wall 21 simplifies the absorption of the water provided by the water supply system 50 and, therefore, the formation of a new ice layer which the scraper device 60 can cut.
  • the adjustment means is capable of varying the distance of the scraper device 60 from the ice layer as a function of the need and type of artificial snow to be made.
  • the adjustment means allows the variation of the inclination of the scraper device 60 with respect to the outer side wall 21.
  • the equipment 10 comprises a cleaning element 71 arranged frontally to the outer side wall 21, more precisely at the scraper device 60.
  • the cleaning element comprises a rotating brush configured to prevent the formation and/or to remove any accumulations of snow at the cutting element 63 of the scraper device 60.
  • the cleaning element 71 allows to remove the ice powder formed by the scraper device 60 which has not fallen by gravity and, therefore, has not been exploited for the formation of artificial snow.
  • the cleaning element 71 extends parallel to the longitudinal axis L substantially for an entire length of the outer side wall 21.
  • the equipment 10 comprises a blowing device 80 arranged below the refrigerating cylinder 20 and the scraper device 60.
  • the blowing device 80 is configured to blow the artificial snow produced by the scraper device 60, creating a snow flow outside the equipment 10 which is more uniform and similar to a natural flow of snow fall.
  • the blowing device 80 is advantageously configured to remove the artificial snow made by the scraper device 60 from the equipment 10.
  • the artificial snow produced falls by gravity from the scraper device 60 and is then moved by the blowing device 80 towards a collection area, for example a snow cabin, creating a snow flow which simulates the effect of a natural snowfall.
  • the present invention also relates to an artificial snowmaking apparatus 100, preferably indoor.
  • the apparatus 100 comprises an artificial snowmaking cabin 101 defining an inner volume W thereof and, furthermore, indoor artificial snowmaking equipment 10 having one or more of the features described above.
  • the equipment 10 is mounted on a frame 11 (visible in figure 1 ) constrainable to a wall 102 or to the ceiling 103 of said cabin 101 and, furthermore, raised from the ground, preferably at a ceiling 103 of the same cabin 101.
  • the equipment 10 (or at least most of its components such as the refrigerating cylinder 20 and the scraper device 60) is arranged inside a frame 11 having the confirmation of an almost entirely closed box-like body and, furthermore, with a thermal insulation towards the external environment.
  • one face of the frame 11 is open and communicating with the inner volume W of the snow cabin 101 to allow the artificial snow produced to fall by gravity inside the same snow cabin 101.
  • the equipment 10 is fixed to a wall 102 or to the ceiling 103 of the snow cabin 101 so that the communicating face of the frame 11 is in direct communication with the inner volume W for the fall of the artificial snow produced by the equipment 10.
  • the apparatus 100 may also comprise a spray system which, in turn, comprises a nucleator nozzle 111 fed with a flow of pressurised air 112 and a flow of cooled water 113.
  • the air present in the inner volume W of the snow cabin 101 is advantageously maintained at a predetermined temperature and humidity value to allow the artificial snow produced by the equipment 10 to be preserved, i.e., not to melt, and thus to maintain its quality.
  • the spray system comprises a heat exchanger 114 configured to cool the air flow to be conveyed inside the snow cabin 101.
  • the heat exchanger 114 is arranged in connection with the cooling unit 40.
  • the spray system is connected with the cooling unit 40 to cool the water flow 113 to be conveyed towards the nucleator nozzle 111.
  • the blowing device 80 is configured to suck part of the nebulized and humid cold air from the artificial snow cabin 101 to blow the artificial snow produced by the scraper apparatus 60 into the same artificial snow cabin 101.
  • the blowing device 80 is advantageously capable of reducing the energy expenditure of the equipment 10 since the air used to blow the artificial snow in the snow cabin 101 does not have to be cooled by the same blower but is recovered directly from the snow cabin 101 where a large amount thereof is already present.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP23204102.0A 2022-10-20 2023-10-17 Apparatur zur herstellung von kunstschnee Active EP4357705B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102022000021633A IT202200021633A1 (it) 2022-10-20 2022-10-20 Apparecchiatura di innevamento artificiale

Publications (2)

Publication Number Publication Date
EP4357705A1 true EP4357705A1 (de) 2024-04-24
EP4357705B1 EP4357705B1 (de) 2026-04-22

Family

ID=84943793

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23204102.0A Active EP4357705B1 (de) 2022-10-20 2023-10-17 Apparatur zur herstellung von kunstschnee

Country Status (4)

Country Link
US (1) US20240230200A9 (de)
EP (1) EP4357705B1 (de)
CN (1) CN117917541A (de)
IT (1) IT202200021633A1 (de)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1823725A (en) * 1925-12-07 1931-09-15 Shell Petroleum Corp Refrigerating apparatus
DE2242024A1 (de) * 1972-08-26 1974-02-28 Krauss Maffei Ag Kuehlwalze zum gefrieren eines insbesondere kaelteschockempfindlichen gutes
US3906577A (en) * 1972-10-03 1975-09-23 Borsig Gmbh Spring-loaded scraper blade holder on scraper shafts of scraper coolers
US5187947A (en) * 1991-10-16 1993-02-23 Doskocil Companies Incorporated Wheel type freezer and method for rapid, low temperature freezing
WO1994016861A1 (en) * 1993-01-26 1994-08-04 Ice Blast International Ltd. Apparatus for real time ice supply to ice blasting system
JPH1068564A (ja) * 1996-07-01 1998-03-10 Keigen Bussan Kk 急速冷却かき氷製造装置
DE102005039989A1 (de) * 2004-08-26 2006-03-02 Hartmut Higel Vorrichtung zum Herstellen von Scherbeneis
DE102008029695B3 (de) * 2008-06-24 2009-06-18 Hartmut Higel Vorrichtung zum Herstellen von Scherbeneis
KR101544154B1 (ko) * 2014-09-24 2015-08-12 (주)엘에스엠스노위즈 제빙 장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2697919A (en) * 1950-12-11 1954-12-28 Flakice Corp Ice-making machine
US3494144A (en) * 1969-01-16 1970-02-10 Hermann Schill Rotary drum flake ice maker
JPH11183001A (ja) * 1997-12-20 1999-07-06 Toyo Eng Works Ltd 人工雪生成装置
US9482461B2 (en) * 2013-08-22 2016-11-01 King Fahd University Of Petroleum And Minerals Coolant heat exchanger having a scraper for each heat exchange interface surface
KR101793054B1 (ko) * 2016-01-30 2017-11-20 주식회사 아이씨티나까조 가루얼음 제빙기
CN113152946A (zh) * 2020-05-17 2021-07-23 青岛三友制冰设备有限公司 飘雪屋及具有其的冰雪娱乐设施
CN115046342B (zh) * 2022-07-26 2023-03-28 西安交通大学 一种冰浆造雪机及控制方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1823725A (en) * 1925-12-07 1931-09-15 Shell Petroleum Corp Refrigerating apparatus
DE2242024A1 (de) * 1972-08-26 1974-02-28 Krauss Maffei Ag Kuehlwalze zum gefrieren eines insbesondere kaelteschockempfindlichen gutes
US3906577A (en) * 1972-10-03 1975-09-23 Borsig Gmbh Spring-loaded scraper blade holder on scraper shafts of scraper coolers
US5187947A (en) * 1991-10-16 1993-02-23 Doskocil Companies Incorporated Wheel type freezer and method for rapid, low temperature freezing
WO1994016861A1 (en) * 1993-01-26 1994-08-04 Ice Blast International Ltd. Apparatus for real time ice supply to ice blasting system
JPH1068564A (ja) * 1996-07-01 1998-03-10 Keigen Bussan Kk 急速冷却かき氷製造装置
DE102005039989A1 (de) * 2004-08-26 2006-03-02 Hartmut Higel Vorrichtung zum Herstellen von Scherbeneis
DE102008029695B3 (de) * 2008-06-24 2009-06-18 Hartmut Higel Vorrichtung zum Herstellen von Scherbeneis
KR101544154B1 (ko) * 2014-09-24 2015-08-12 (주)엘에스엠스노위즈 제빙 장치

Also Published As

Publication number Publication date
US20240230200A9 (en) 2024-07-11
US20240133608A1 (en) 2024-04-25
CN117917541A (zh) 2024-04-23
IT202200021633A1 (it) 2024-04-20
EP4357705B1 (de) 2026-04-22

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