EP3980701A1 - System to realize an artificial snow fall, in particular for a snow cabin, and method to realize an artificial snow fall - Google Patents
System to realize an artificial snow fall, in particular for a snow cabin, and method to realize an artificial snow fallInfo
- Publication number
- EP3980701A1 EP3980701A1 EP19746534.7A EP19746534A EP3980701A1 EP 3980701 A1 EP3980701 A1 EP 3980701A1 EP 19746534 A EP19746534 A EP 19746534A EP 3980701 A1 EP3980701 A1 EP 3980701A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- snow
- perforated wall
- movement
- fall
- artificial
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims abstract description 55
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006199 nebulizer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000009424 underpinning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
- F25C3/04—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for sledging or ski trails; Producing artificial snow
Definitions
- the object of the present invention is a system to realize an artificial snow fall.
- the invention relates to a snow cabin comprising a snow making device and a distribution device for the formation of snow directly inside the cabin.
- the invention further relates to a method to realize an artificial snow fall.
- Such snow-making 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 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 relevant snow-making device arranged on the top of the room and generally comprising nozzles for the generation and throwing of artificial snow.
- the snow-making systems present to date on the market must be activated with prior warning so as to be able to form a minimum accumulation of snow with which they can simulate the falling of snow flakes.
- current snow-making 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 snow flakes that are free to fall.
- scraper device to comprise a complex and movable structure able to adapt its distance from the lot of snow accumulated in an optimal way for generating snow flakes.
- the technical task underpinning the present invention is to propose a system for realizing an artificial snow fall, in particular for a snow cabin, which obviates the drawbacks of the prior art cited above.
- an aim of the present invention is that of providing a system for realizing an artificial snow fall with higher quality with respect to the prior art.
- Another aim of the present invention is that of providing a system for realizing an artificial snow fall in which the snow produced by the snow making device is directly conveyed towards the distribution device, which is in turn configured to immediately perform the distribution for falling.
- the invention relates to a system to realize an artificial snow fall, in particular for a snow cabin.
- the system comprises a snow-making device, which is configured to generate artificial snow, and a distribution device associated with the snow-making device and configured to directly collect the artificial snow generated for distributing it according to a substantially vertical falling direction in a snow fall area, at least mainly below the distribution device.
- the distribution device comprises a perforated wall that extends at least along a longitudinal direction transversal to the falling direction and having a first snow collection surface and a second snow release surface, the latter opposite the first surface and at least partially facing towards the falling area.
- the distribution device further comprises a movement member connected to the perforated wall and configured to move it according to a movement direction substantially transversal to the falling direction at least at a part of the perforated wall in which the snow crosses from the first to the second surface to realize the fall.
- the invention further relates to a snow cabin comprising a plurality of side walls and a ceiling, which delimit a compartment that defines a room that can be crossed by a user, and a system for realizing an artificial snow fall described previously.
- the compartment is divided into an upper volume and a lower volume according to a snow fall direction.
- the snow-making device is arranged at least partially at the upper volume, while the distribution device divides the upper volume from the lower volume in which the snow fall area is comprised.
- the invention also has a method for realizing an artificial snow fall, in particular inside a snow cabin, comprising the operating steps of:
- FIG. 1 illustrates a perspective view of a snow cabin in which a system is installed for realizing an artificial snow fall;
- FIG. 2 illustrates a front schematic view of a section according to a vertical plane of the cabin illustrated in Figure 1 ;
- FIG. 3 illustrates a perspective view of a first embodiment of the system for realizing an artificial snow fall
- figure 4 illustrates a perspective view of a different aspect of the distribution device illustrated in figure 3;
- FIG. 5 illustrates a schematic view of a section according to a transverse plane of the distribution device illustrated in Figure 4;
- FIG. 6 illustrates a perspective view of a second embodiment of the system for realizing an artificial snow fall
- figure 7 illustrates a perspective view of a different aspect of the distribution device illustrated in figure 6;
- FIG. 8 illustrates a perspective view of a section according to a transversal plane of the distribution device illustrated in Figure 7.
- the present invention relates to a system to realize an artificial snow fall, in particular for a snow cabin.
- the system to realize an artificial snow fall has been generically indicated by the number 1
- a snow cabin has been generically indicated by the number 100.
- Figure 1 and figure 2 illustrate a snow cabin 100 in which a system 1 is installed for realizing an artificial snow fall.
- the system 1 comprises a snow-making device 2 configured to generate artificial snow and comprising a ventilation member 21 configured to generate an air flow F, a cooling member 22 associated with the ventilation member 21 and configured to cool the air flow F to temperatures less than 4°C, a nebulizer member 23 configured to dispense a nebulized jet of pressurized water into the flow of air F to trigger the formation of snow within such flow F, and a pipe 24 configured to convey the air flow F and the nebulized water jet G along an emission direction E.
- the system 1 comprises a distribution device 3 associated with the snow-making device 2 and configured to collect directly the artificial snow generated and to distribute it in a falling area 4, which is at least mainly below the distribution device 3.
- the snow fall from the distribution device 3 preferably takes place by gravity according to a substantially vertical falling direction C.
- the distribution device 3 comprises a wall 5 perforated by a plurality of through holes 6 (having, by way of example, a diameter of about 3 mm), which extends along a longitudinal direction L transversal to the falling direction C of the snow.
- the perforated wall 5 has a first snow collection surface 7 and a second snow release surface 8, the latter opposite the first surface 7 and facing at least partially towards the falling zone 4.
- the plurality of holes 6 allows the passage of snow through the perforated wall 5 from the first surface 7 towards the second surface 8 and therefore towards the falling area 4.
- the distribution device 3 further comprises a movement member (not illustrated) connected to the perforated wall 5 on which the snow is directly deposited.
- the movement member is configured to move the perforated wall 5 according to a movement direction M substantially transversal to the falling direction C at least at a first part of the perforated wall 5 in which the snow crosses from the first surface 7 to the second surface 8 to realize the fall.
- the movement member is configured to make the perforated wall 5 perform a cyclic movement over time. Even more precisely, the movement member moves the perforated wall 5 according to a trajectory that cyclically passes through the same points, describing at regular time intervals the same movement path.
- the perforated wall 5 is folded onto itself about an extension axis A thereof parallel to the longitudinal direction L, so as to form a laterally open cylindrical wall.
- the perforated wall 5 defines the side wall of a cylinder in which the circular sides which would define the base and top are missing (in the event in which the cylinder extends vertically).
- the first surface 7 and the second surface 8 define, respectively, an inner cylindrical surface and an outer cylindrical surface.
- the snow-making device 2 is configured to generate artificial snow directly inside a collection volume defined and delimited by the perforated wall 5 folded onto itself about the extension axis A.
- the extension axis A is substantially horizontal. Even more preferably, the extension axis A extends parallel and consecutive to the emission direction E, as better illustrated below.
- the movement member is configured to place in rotation the perforated wall 5 about the extension axis A.
- Figures 6, 7, 8 illustrate a second embodiment of the invention, alternative to the previous one, wherein the perforated wall 5 has a planar surface extension, preferably parallel to the ground.
- the movement member is configured to impart onto the perforated wall 5 an alternative linear motion along the movement direction M.
- the movement direction M is parallel to the surface extension of the perforated wall. Even more preferably, the movement direction is transverse to the longitudinal extension direction L of the perforated wall 5.
- the system 1 comprises a spatula element 10 associated with the first surface 7 to assist with the distribution of the snow collected through the perforated wall 5 for realizing the fall towards the falling area 4.
- the spatula element 10 is constrained to a support structure of the system 1 with respect to which the perforated wall 5 moves.
- the spatula element 10 is arranged in contact with the first surface 7 in a fixed position so that the induced movement on the perforated wall 5 determines the distribution of snow deposited through the plurality of holes 6 and therefore of the fall towards the falling area 4.
- the spatula element 10 comprises a slat 1 1 having a scraping edge 12 that extends in contact with the first surface 7 of the perforated wall 5 to assist the distribution of the snow collected through the plurality of holes 6.
- the slat 11 is inclined with respect to an orthogonal plane to a tangent plane to the contact point between the slat 11 and the perforated wall 5. More precisely, the slat 11 is inclined with respect to a vertical direction, as can be seen better in figures 5 and 8.
- the slat 1 1 is configured to slightly vary its inclination (by a variable angle between 5° and 15°) with respect to its own balance position for adapting to the movement of the perforated wall 5 actuated by the movement member.
- each hole 6 of the perforated wall 5 has a raised projecting edge with respect to the first surface 7 to increase the scraping effect of the perforated wall 5 on the snow accumulated on the same first surface 7 during the movement performed by the movement member. In this way, during the movement of the perforated wall 5, the snow collected on the first surface 7 is more easily broken up and moved to be conveyed through the holes and then distributed towards the falling zone 4.
- the plurality of holes 6 is equally distributed on the surface extension of the perforated wall 5 so that the distribution of the snow from the first surface 7 to the second surface 8 takes place in the most uniform way possible.
- the perforated wall 5 can comprise a net or a thin sheet (with a thickness of about 1.5 mm) and uniformly riddled with holes along its surface extension and can be made of a metal or plastic material.
- the system 1 comprises at least one brush 13 arranged in contact with the first surface 7 or the second surface 8 of the perforated wall 5.
- the brush 13 is arranged in a position distanced from the perforated wall 5 in which the snow crosses from the first surface 7 to the second surface 8 for falling.
- the use of at least one brush is possible for the snow to get packed inside a hole obstructing it and therefore not allowing the passage of any more snow towards the falling area 4.
- the brush 13 is constrained to a support structure of the system 1 with respect to which the perforated wall 5 moves.
- the brush is maintained in a fixed position thereof during the movement of the perforated wall 5 so that it is the movement of the latter that induces the rubbing action of the brush 13 on the first surface 7 or on the second surface 8 for determining the cleaning of the plurality of holes 6 from the blocking of frozen snow.
- the brush 13 comprises a support rod 14 and bristles 15 connected to the support rod 14.
- the support rod 14 which is constrained to the support structure, extends parallel to the longitudinal direction L and to the perforated wall 5.
- the bristles 15 are rotatably connected about the support rod
- the system 1 comprises two brushes 13, each arranged in contact with a respective surface 7, 8 of the perforated wall 5 for performing the cleaning of the same perforated wall 5 during the movement actuated by the movement member.
- the two brushes 13 are arranged on opposite sides with respect to an orthogonal plane to the perforated wall 5. More precisely, as can be seen in figure 5, in the case in which there are two brushes 13 arranged in contact with a respective surface different from the other, they are not arranged facing each other considering the perforated wall 5 as a dividing plane. Therefore, more precisely, between the brushes 13 an orthogonal plane to the perforated wall 5 is interposed.
- the brushes 13 thus arranged act consecutively on a same portion of the perforated wall 5 to perform improved cleaning and removal of the plurality of holes 6. More precisely, the brushes 13 act on the same plurality of through holes 6, but each on a different surface. Furthermore, the brushes 13, being constrained to the support structure of the system 1 , are not movable, but act consecutively on one another as a consequence of the movement of the perforated wall 5 along a specific orientation of the movement direction M.
- the brushes 13 are arranged aligned but opposite with respect to the perforated wall 5.
- a preferred embodiment of the invention envisages that the system described above is installed in a snow cabin 100, for generating inside the latter a snow fall such as to recreate the typically winter climate and thus offer the user a shiver of revitalizing cold after heat treatments such as, for example, a sauna.
- the snow cabin 100 comprises a plurality of side walls 101 and a ceiling 102 delimited by a compartment 103, that defines a room that can be crossed by a user.
- the compartment 103 of the room is divided between an upper volume W and a lower volume V.
- the snow-making device 2 is arranged at least partially at the upper volume W and the distribution device 3 divides the upper volume W from the lower volume V in which the snow fall area 4 is comprised.
- the pipe 24 of the snow-making device 2 extends between an inlet opening 25 thereof and an outlet opening 26 thereof arranged in flow communication with the compartment 103, and specifically with the upper volume W of the compartment 103.
- the inlet opening 25 of the pipe 24 is, instead, arranged in flow communication with the lower volume V of the compartment 103 for sucking the air inside the room and conveying it towards the outlet opening 26.
- the moisture of the air in the lower volume V of the room tends to increase because of the melting of the snow and the presence of any users. Therefore, advantageously, the pipe is able to collect such moist air and convey it through the cooling member 22 to reduce the temperature thereof again before re-introducing it into the upper volume W with the water jet G added, useful for the formation of snow.
- the system 1 comprises a siphon 27 interposed along the pipe 24 in proximity to the inlet opening 25 to block the channelling along the pipe 24 of any amount of snow sucked by the compartment 103.
- the ventilation member 21 along the pipe 24, downstream of the siphon 27, the ventilation member 21 , the cooling member 22 and the nebulizing member 23 are arranged.
- the ventilation member 21 generally an impeller or a turbine, is configured to generate the air flow F sucked by the inlet opening 25 and conveyed towards the outlet opening 26.
- the air flow F is conveyed through the cooling member 22 and the nebulizing member 23.
- the cooling member 22, preferably a heat exchanger, is configured to lower the air temperature to values less than 0°C, preferably less than - 5°C.
- the nebulizing member 23 is preferably arranged at the outlet opening 26. More precisely, the nebulizing member 23 comprises a nucleator element, preferably a nozzle, configured to emit along the emission direction E a water jet G combined with compressed air. The emission with volumetric expansion of the compressed air and water jet G causes rapid lowering of the temperature of the water particles, which freeze immediately being conveyed into the air flow F at a temperature less than 0°C.
- the snow or sleet formed is conveyed towards the distribution device 3 to be collected and distributed into the compartment 103.
- the movement member comprises an electric transmission motor configured to move the perforated wall 5 along the movement dimension M. If the perforated wall 5 is conformed like a cylindrical wall, the rotation frequency imposed is generally, by way of example, about 10 rpm. Otherwise, if the perforated wall 5 is planar, the average movement speed is about 2 metres per minute.
- the system 1 comprises a pair of idle support rollers (not illustrated), which are arranged in contact with the second surface 8 of the perforated wall 5.
- the support rollers extend along a respective axis of rotation parallel to the longitudinal direction L.
- the rollers are configured to rotate in an idle way about the respective axis of rotation during the movement of the perforated wall 5 actuated by the movement member.
- the rollers support the perforated wall 5 and, because of the movement of the latter, they are also able to rotate to reduce friction with the second surface 8.
- the rollers are arranged parallel to one another at a shorter distance than a diameter of the cylindrical wall 5.
- the perforated wall 5 has a diameter of about 700 mm.
- the rollers, being positioned in contact with the second surface 8 at a distance less than 700 mm (and therefore being positioned below the perforated wall 5), are able to support the perforated wall 5 and allow the movement thereof thanks to their idle rotation.
- the perforated wall 5 has a variable longitudinal extension between 1.5 m and 2 m (and a transversal width of about 2 m if planar).
- the system 1 comprises support flanges (not illustrated) configured to strengthen the structure of the perforated wall 5.
- the support flanges are connected to the second surface 8 and extend transversally to the longitudinal direction L for at least part of the transversal extension of the perforated wall 5, with a curved progression if the latter is folded onto itself.
- the perforated wall 5 may have a greater longitudinal extension than the values previously introduced.
- the system 1 envisages providing two snow making devices 2 opposite each other and associated with the same distribution device 3 interposed between each other. In this way each snow-making device 2 is configured to produce snow to be distributed across about half of the perforated wall 5.
- the snow-making device 2 is activated to generate artificial snow to be conveyed towards the distribution device 3 for subsequently performing the distribution in a predefined area such as, for example, inside a snow cabin 100.
- the ventilation member 21 generates an air flow F that is subsequently cooled by the cooling member 22 and a pressurized water jet G is added through the nebulizing member 23.
- the emission of the water jet G into the air flow F having a temperature less than 0°C produces artificial snow pushed along the emission direction E towards the distribution device 3.
- the perforated wall 5 of the distribution device 3 directly collects the artificial snow produced on the first surface 7 thereof.
- the activation of the distribution device 3 implies the movement thereof along a movement direction M (circular or linear alternating in two orientations as a function of the conformation of the perforated wall 5) to shift the deposited snow, preventing it from solidifying and allowing it to pass along the falling direction C through a plurality of holes 6 from the first surface 7 towards the second surface 8 and therefore into the falling area 4.
- the system 1 allows the snow-making device 2 and the distribution device 3 to be activated simultaneously; to obtain the distribution by falling, it is not necessary to wait for an accumulation of snow to be formed on the perforated wall 5.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2019/054806 WO2020250003A1 (en) | 2019-06-10 | 2019-06-10 | System to realize an artificial snow fall, in particular for a snow cabin, and method to realize an artificial snow fall |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3980701A1 true EP3980701A1 (en) | 2022-04-13 |
Family
ID=67482955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19746534.7A Pending EP3980701A1 (en) | 2019-06-10 | 2019-06-10 | System to realize an artificial snow fall, in particular for a snow cabin, and method to realize an artificial snow fall |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3980701A1 (en) |
WO (1) | WO2020250003A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7514771B2 (en) * | 2021-01-15 | 2024-07-11 | エスペック株式会社 | Snow making equipment |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5875678A (en) * | 1982-07-26 | 1983-05-07 | 株式会社東洋製作所 | Artificial snow generator |
JPH0615280Y2 (en) * | 1988-07-08 | 1994-04-20 | 株式会社東洋製作所 | Mobile artificial snowfall device for exhibition |
JPH0255064U (en) * | 1988-10-12 | 1990-04-20 | ||
JPH0726778B2 (en) * | 1989-05-19 | 1995-03-29 | 株式会社東洋製作所 | Artificial snowfall equipment |
JP2775871B2 (en) * | 1989-07-12 | 1998-07-16 | 北越工業株式会社 | Artificial snowfall equipment |
JP2671158B2 (en) * | 1990-02-09 | 1997-10-29 | 株式会社 東洋製作所 | Artificial snowfall equipment |
JPH0474271U (en) * | 1990-11-06 | 1992-06-29 | ||
US5632419A (en) * | 1995-02-24 | 1997-05-27 | Snowmaker Productions, Inc. | Snowfall simulator with agitating dispenser |
US6082594A (en) * | 1998-12-31 | 2000-07-04 | Snowmaker Productions, Inc. | Snowfall simulator with agitating dispenser |
JP4549364B2 (en) * | 2007-05-30 | 2010-09-22 | 株式会社東洋製作所 | Snowfall equipment |
GB2455768B (en) * | 2007-12-21 | 2011-12-07 | Henry James Stokes | A machine for use in the production of synthetic falling snow |
ITVR20130292A1 (en) * | 2013-12-23 | 2015-06-24 | Technoalpin Holding S P A | SNOW FACTORY FOR CLOSED LOCALS |
DE102014104123B3 (en) * | 2014-03-25 | 2015-02-12 | Axel Stein | Rieselapparat |
JP2018115794A (en) * | 2017-01-17 | 2018-07-26 | 三菱重工冷熱株式会社 | Snow fall system of crystal snow |
JP6763792B2 (en) * | 2017-01-17 | 2020-09-30 | 三菱重工冷熱株式会社 | Snowflake generator and method |
JP2018115796A (en) * | 2017-01-17 | 2018-07-26 | 三菱重工冷熱株式会社 | Snowfall simulation system using artificial snow |
-
2019
- 2019-06-10 WO PCT/IB2019/054806 patent/WO2020250003A1/en unknown
- 2019-06-10 EP EP19746534.7A patent/EP3980701A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2020250003A1 (en) | 2020-12-17 |
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