JP2564258B2 - Ice and snow production system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice and snow making system suitable for use in spraying ice and snow, which is artificial snow, on a ski slope.

[0002]

2. Description of the Related Art FIG. 4 is a schematic view showing an example of conventional snowfall equipment. With the recent global warming, the amount of snowfall in winter has decreased, and there has been a shortage of snow at ski resorts in various places.
For this reason, it has been difficult to ski for a short period of time and it is difficult to maintain a good slope. In addition, artificial ski resorts have begun to be built in areas with low snowfall. Therefore, in the past, in order to make up for the lack of snow and to form a slope on an artificial ski resort, ice snow, which is artificial snow, was manufactured and sprayed on the slope. As shown in FIG. 4, for example, the conventional snowfall equipment 1 is composed of an ice making device 12, an ice storage device 11, and an ice carrying device 10. The ice carrying device 10 collects the ice and snow 60 supplied to the ice and snow feeder 3. It has a pipe line 8 for sending pressure to the ice-blowing device 4. That is, the water 61 is supplied to the ice making device 12 by a pump or the like (not shown), the water 61 supplied to the ice making device 12 is manufactured as the ice and snow 60, and the ice and snow 6 manufactured by the ice making device 12 is manufactured.
0 is conveyed to the ice storage device 11. Then, when it is necessary to spray ice and snow on the slopes, the ice and snow 60 is stored in the ice storage device 1
1 is supplied to the ice and snow feeder 3 of the ice carrier 10. The ice and snow 60 supplied from the ice storage device 11 to the ice and snow feeder 3 is conveyed to the slope through the ice and snow pressure feeding pipe 6 of the pipe line 8. When ice-snow 60 is pressure-fed by the ice-carrying device 10, the blower 2 is driven to suck the external air 50 into the conduit 8 via the air filter 9, and the blower 2 adiabatically compresses and raises the temperature. After the air 50 is cooled by the heat exchanger 5, the inside of the pipe line 8 is supplied to the left in the figure, and the ice and snow 60 supplied to the ice and snow feeder 3 is pressure-fed through the ice and snow pressure-feeding pipe 6 to the ice-blowing device 4. It was transported and sprayed on the slopes.

[0003]

However, in this case, a large amount of energy is consumed for producing the ice and snow 60 from the water 61. In addition, since the ice and snow 60 was pressure-fed in the ice and snow pressure-feeding pipe 6 to the slope, the ice and snow 60 exchanges heat with the ice-and-snow pressure-feeding pipe 6 that has been heated by the outside air, solar radiation, etc. before reaching the slope. Then, the ice and snow 60 to be transported to the slope was wasted.

Therefore, in view of the above circumstances, an object of the present invention is to provide an ice and snow manufacturing system capable of efficiently spraying ice and snow, which is artificial snow, on the slopes of a ski resort with low energy consumption.

[0005]

That is, the present invention has an ice making means (12) capable of producing ice and snow (60), wherein the ice making means is the ice carrying means (10) and the slope (20) is ice and snow. And a water collecting means (2
1, 22, 23, 40) in a form capable of collecting the snowmelt water (62), and the water collecting means (15, 16, 1)
7, 25, 26, 27) are provided by connecting the water collecting means and the ice making means.

[0006] The numbers in parentheses and the like are for convenience showing the corresponding elements in the drawings, and therefore, the present description is not limited to the description on the drawings. The same applies to the following “action” column.

[0007]

With the above-described structure, the present invention provides a slope (2
0) the snowmelt water (62) formed in the water collecting means (21, 2)
2, 23, 40), and the collected snowmelt water is sent from the slope to the ice making means (12) by the water sending means (15, 16, 17, 25, 26, 27) to melt the snow by the ice making means. It acts in such a way that it can be used to form ice and snow (60) from water.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic cutaway plan view showing an embodiment of a slope and snowfall equipment to which the ice and snow production system according to the present invention is applied, and FIG. 2 is a sectional view of a slope to which the ice and snow production system according to the present invention is applied, FIG. 3 is a schematic diagram showing an example in which the collected snowmelt water is reused in the ice and snow pressure feeding path.

The slope 20 to which the ice and snow production system according to the present invention is applied has an arrow A as shown in FIGS.
In the ground 80 that forms a slope inclined in the directions of arrows A and B with the direction facing downward, the perforated film 21 is laid over the entire surface of the ground 80 on which the slope 20 is to be formed. A large number of small water-permeable holes 21a are formed in a flexible resin film or the like. On the perforated film 21, an L-shaped cross-section gutter 22 is provided at intervals of a water collecting distance L in the directions of arrows A and B so as to intersect with the slope of the ground 80 in the directions of arrows A and B. The water blocking gutter 22 has a shape in which the water blocking portion 22a formed on the inner surface side of the L-shape is directed in the arrow B direction, and the arrow D direction is directed downward, and is inclined in the arrows C and D directions (that is, the horizontal direction ( A water blocking gutter 22 extends in the direction of arrows C and D) to form a flow). In addition, a water collecting pipe 23 is provided in the water blocking portion 22a of the water blocking gutter 22 along the water blocking gutter 22 (that is,
The water collecting pipe 23 is provided in a horizontal direction (direction of arrows C and D) to form a flow, and the water collecting pipe 23 is a small hole such as a strainer with one end blocked, and the water collecting hole 23a is a small hole.
It consists of a formed tube. That is, each waterproof gutter 22
However, the impervious portion 22 prevents water flowing due to the inclination of the ground 80.
The water that is blocked by a and is blocked by the water blocking portion 22a is
From the water collecting hole 23a of the
It flows in the horizontal direction (directions of arrows C and D). Further, as shown in FIG. 2, sand 40 is spread over the perforated film 21, the water blocking gutter 22, and the water collecting pipe 23 in a substantially uniform thickness, and on the spread sand 40, A resin snow cover block 41 having a brush-like snow cover portion 41a formed thereon is installed over the entire surface. Snow block 41
An opening 41b is formed in the base plate 41, and water or the like can flow into the sand 40 below through the opening 41b. As an alternative to the perforated film 21, the ground 80
Any material may be used as long as it can prevent water from seeping in, and for example, mortar or the like may be placed. Also, sand 4
As an alternative to 0, any material can be used as long as it can easily pass water even in a paved state, for example, crushed stone.

At the other end of each water collecting pipe 23, as shown in FIG. 1, a water sending pipe 25 is in communication with each water collecting pipe 23 so as to receive water discharged from each water collecting pipe 23. The water supply pipes 25 are connected to each other and are provided along the inclination of the ground 80 in the directions of arrows A and B so as to send water in the direction of arrow A by gravity. In addition, a flow of 2
A switching valve 26 that can be switched in the direction is connected, and a drain pipe 28 is connected to one end of the switching valve 26 so as to drain into a river, a waterway, a sewer, or the like. In addition, the switching valve 26
The water storage pipe 27 is connected to the other end of the water storage pipe 27.
A water storage tank 15 is provided at the other end.

As shown in FIG. 1, the water storage tank 15 is provided with a pump 16 capable of stopping water supply, and the pump 16 is provided with a water supply pipe 17. The other end of the water supply pipe 17 is connected to the water supply switching valve 1 of the ice making device 12 which constitutes the snowfall equipment 1.
2a, the water supply switching valve 12a controls the flow to 2
The direction can be switched. That is, the water supply switching valve 12a includes the water 61 supplied from the left side in FIG. 1 or the water supply pipe 17
Either one of the snow melting water 62 supplied from the above can be selectively made to flow to the ice making device 12 side. In addition, a water intake pipe 31 is connected in the middle of the water supply pipe 17 so as to be able to supply the snow melting water 62 to the ice-carrying device 10 that constitutes the snowfall facility 1, and further, in the middle of the water supply pipe 17, The water pipe 32 is connected so that the snowmelt water 62 supplied to the ice carrier 10 can be returned to the water supply pipe 17. That is, as shown in FIG. 3, a cooler 33 is connected to the intake pipe 31 and the condensate pipe 32.
Is provided in the ice-and-snow pressure-feeding pipe 6 forming the ice carrier 10 so as to cover the outer periphery of the ice-and-snow pressure-feeding pipe 6 to form a double pipe. Further, the water intake pipe 31 and the condensate pipe 32 are connected to the cooler 33 so that the snowmelt water 62 can flow in and out of the cooler 33 in a manner to form a counterflow with the flow of the ice and snow 60 conveyed in the ice and snow pumping pipe 6. Are connected.

Since the slope 20 has the above-described structure, when ice 60 is sprayed on the slope 20, FIG.
As shown in, the scattered ice and snow 60 is covered by the snow block 4.
Stack on 1. Ice and snow accumulated on the snow stop block 41 6
0 is fixed on the ground 80 forming a slope by the snow stopper 41a without slipping in the direction of arrow A. Ice and snow fixed 6
When 0 melts due to outside air or sunlight, it becomes snowmelt water 62,
The snowmelt water 62 penetrates into the sand 40 below the snow stopper block 41 through the opening 41b.

That is, since the perforated film 21 having water resistance prevents the snow-melting water 62 from soaking into the ground 80, most of the snow-melting water 62 can be stored in the sand 40. The snow-melting water 62 can be made to flow downward (direction of arrow A) along the slope of the slope 20. Also,
The snowmelt water 62 that has formed a downward flow does not flow all at once from the uppermost part to the lowermost part of the slope of the slope 20, but by the water blocking parts 22a of the water blocking gutters 22 provided at predetermined intervals of the water collecting distance L. , The flow is interrupted at predetermined intervals of the water collecting distance L. And the snowmelt water 62 blocked by each water blocking portion 22a is
Water collecting hole 2 of water collecting pipe 23 provided along each water blocking gutter 22
The water flows into the water collecting pipes 23 through 3a and flows in the water collecting pipes 23 in the direction of arrow D (downward right direction in FIG. 1). Therefore, it is possible to prevent the snow melt water 62 from seeping into the ground 80 and
It is possible to flow along the slope of 0, and by collecting the snowmelt water 62 at predetermined intervals of the water collection distance L, the slope 20
It can be collected efficiently without flowing out.

Further, the snowmelt water 6 collected in each water collecting pipe 23
As shown in FIG. 1, 2 flows in the direction of arrow D due to the inclination of the water collection pipe 23 and is collected in the water supply pipe 25. The snowmelt water 62 collected in the water supply pipe 25 is indicated by the arrow A due to the inclination of the water supply pipe 25.
Flow in the direction. The switching valve 26 is provided from the water pipe 25 to the water storage pipe 2
By setting to flow to 7, the water pipe 25
The snowmelt water 62 collected in the
6. The water passes through the water storage pipe 27 and is stored in the water storage tank 15.

On the other hand, a part of the snow-melting water 62 that has penetrated into the sand 40 penetrates into the ground 80 through the water-permeable holes 22a of the perforated film 21, so the ground 8 below the perforated film 21.
0 can be maintained at a low temperature, the temperature of the snow melting water 62 collected in the water collecting pipe 23 does not rise, and the ground 80
It is possible to efficiently collect the snowmelt water 62 without raising the temperature of the snowmelt water 62 without transmitting the geothermal heat.

The snow melt water 62 thus stored in the water storage tank 15 is taken out by operating the pump 16 when necessary. That is, the snowfall facility 1 causes ice and snow 60 on the slope 20.
At the time of spraying, the snow melt water 62 stored in the water storage tank 15 is sent to the ice making device 12 side through the water supply pipe 17 by operating the pump 16. Water supply switching valve 12a of the ice making device 12
Is set so that it flows from the water supply pipe 17 to the ice making device 12, so that the snowmelt water 62 flowing through the water supply pipe 17
Is supplied to the ice making device 12. Therefore, the ice making device 12
In addition, by supplying the snowmelt water 62 having a temperature lower than that of the water 61 that is normally supplied, the icemelt 60 can be formed from the snowmelt water 62 with less energy than that required to form the ice and snow 60 from the water 61. The device 12 can efficiently manufacture ice snow 60, which is artificial snow, with low energy consumption.

Further, the snowmelt water 62 may be used for cooling the ice and snow pressure-feeding pipe 6 of the ice carrier device 10 while the snowmelt water 62 is being sent from the water storage tank 15 to the ice making device 12. That is, as shown in FIG. 3, the snow melt water 62 is supplied from the water supply pipe 17 through the water intake pipe 31 to the cooler 33 provided on the outer circumference of the ice and snow pumping pipe 6.
After cooling the ice and snow pumping pipe 6, the condenser 33 is connected to the condensate pipe 32.
Return to the water supply pipe 17. Therefore, the ice and snow pressure pipe 6 is
It does not heat up due to outside air, solar radiation, etc., and does not melt while the ice / snow 60 is being pressure-fed to the slope in the ice / snow pumping pipe 6, so that the ice / snow 60 to be transported to the slope is not wasted, and the ice / snow 60 is efficiently transferred to the slope 20. Can be sprayed.

As described above, even after the water 61 is formed on the ice / snow 62, the snow / melt water 61 formed by melting the ice / snow 60 having a temperature lower than that of the water 61 is recovered to form the ice / snow 60 again. By using it, the recovered snowmelt water 62
Is used to cool the ice and snow pressure pipe 6,
Since the energy used to initially form the ice and snow 62 can be recovered as the amount of heat of the snowmelt water 61, the ice and snow 60 that is artificial snow can be efficiently manufactured with low energy consumption and sprayed on the slopes.

Further, even if a large amount of rain falls on the slope 20 in summer or the like, much of the rainwater 70 is collected from the water collecting pipe 23 to the water sending pipe 25, like the above-mentioned snow melting water 62.
Part of the rainwater 70 infiltrates into the ground 80 through the water-permeable holes 21 a of the perforated film 21. The rainwater 70 collected in the water supply pipe 25 can be drained through the drainage pipe 28 to a river, a waterway, a sewer, etc. by setting the switching valve 26 to flow from the water supply pipe 25 to the drainage pipe 28. You can Further, by setting the switching valve 26 so as to flow from the water supply pipe 25 to the water storage pipe 27, the rainwater 70 may be stored in the water storage tank 15 and used in case of water shortage. Therefore, the slope 20 is safe and easy to maintain without causing a flood due to rainfall in the summer or the like, and preventing the snow block 41 and the sand 40 from being washed away.

[0020]

As described above, the present invention can be applied to ice and snow 6
0 or the like having an ice making device such as an ice making device 12 capable of producing ice and snow, and the ice making means is provided with an ice carrying device such as the ice carrying device 10 so as to be able to carry ice and snow to a slope such as a slope 20. The slope is provided with water collecting means such as a perforated film 21, an impervious gutter 22, a water collecting pipe 23, and sand 40 in a form capable of collecting snow melting water such as snow melting water 62, and the water collecting pipe 25 is connected to the water collecting means. Since the switching valve 26, the water storage pipe 27, the water storage tank 15, the pump 16, the water supply pipe 17, and the like are provided so as to connect the water collection means and the ice making means,

[0021] By the ice making means, ice snow which is artificial snow is formed from water, and the ice snow formed by the ice making means is conveyed to the slope by the ice carrying means and scattered. Then, the ice and snow sprayed on the slope is melted by outside air, solar radiation, etc. to form snowmelt water.Therefore, the snowmelt water on the slope is collected by the water collecting means, and the collected snowmelt water is collected by the water sending means. By sending water from the ice-making means to the ice-making means, the snow-melting water formed by melting the ice-snow once sprayed on the slope can be used for forming ice-snow by the ice-making means. Therefore, even after the ice-making means forms water into snow and snow and the ice-carrying means sprays it on the slope, the water-collecting means and the water-transmitting means collect the snow-melting water having a temperature lower than that of the water from the slope, and the ice-making means melts the snow. By reusing the water to form ice and snow, a part of the energy used to form ice and snow from the water can be recovered as the calorific value of the snowmelt water. It is low in consumption and can be efficiently manufactured and sprayed on the slopes.

[Brief description of drawings]

FIG. 1 is a schematic cutaway plan view showing an embodiment of a slope and snowfall equipment to which an ice and snow production system according to the present invention is applied.

FIG. 2 is a cross-sectional view of a slope to which the ice and snow manufacturing system according to the present invention is applied.

FIG. 3 is a schematic diagram showing an example in which the collected snowmelt water is reused in the ice and snow pressure feeding path.

FIG. 4 is a schematic diagram showing an example of conventional snowfall equipment.

[Explanation of symbols]

 10 ... Ice carrying means (ice carrying equipment) 12 ... Ice making means (ice making equipment) 15 ... Water feeding means (water tank) 16 ... Water feeding means (pump) 17 ... Water feeding means (water supply pipe) 20 ... Slope (Piste) 21 ... Water collecting means (perforated film) 22 ... Water collecting means (impermeable gutter) 23 ... Water collecting means (water collecting pipe) 25 ... Water sending means (water sending pipe) 26 ... Water sending means ( Switching valve) 27 ... Water supply means (water storage pipe) 40 ... Water collection means (sand) 60 ... Ice and snow (ice and snow) 62 ... Snowmelt water (snowmelt water)

Claims (1)

(57) [Claims] 1. An ice making means capable of producing ice and snow is provided, and the ice making means is provided with an ice carrying means in a form capable of carrying the ice and snow to a slope, and the slope is provided with a water collecting means for collecting snow melting water. An ice and snow production system, which is provided in such a manner that the water collecting means is provided with a water supply means connected to the water collecting means and the ice making means.