JP2002228318A - Snow falling method wherein core material of ice of artificial snow falling machine is self produced forcibly before or after nozzle of gun type or fan type - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow falling method wherein a gun type or a fan type artificial snow falling machine is provided with a nozzle for injecting a fluid capable of self producing the core material of ice forcibly. SOLUTION: The gun type (1) or a fan type (5) artificial snow falling machine is provided respectively with a nozzle (2), (3), (6), (7) to inject the fluid capable of self producing the core material of ice forcibly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for an artificial snowfall machine that increases the amount of snowfall and reduces the amount of invalid snowfall that becomes fine water particles and scatters in the air, under snowfall conditions that are influenced by weather conditions. It is.

[0002]

2. Description of the Related Art A conventional artificial snowfall machine cannot compensate for a shortage of snow at a ski resort due to a decrease in weather conditions in which snowfall is possible due to a rise in temperature in winter due to global warming. Therefore, as a supplement to the lack of snow, some ski resorts
A huge ice factory was built, and ice was spread on the slopes to run a ski resort. However, the huge investment and driving costs make the introduction of ski resorts a huge burden. Next, the technology of the conventional artificial snowfall machine will be described. In the conventional gun type, a two-fluid mixed flow of high-pressure air for adiabatic expansion (first fluid) and pressurized water (second fluid) was jetted from a single collecting nozzle. At the outlet of the single collecting nozzle, a large amount of high-pressure air for adiabatic expansion (first fluid) simultaneously generates supercooled water and an ice core core at the outlet of the single collecting nozzle. It was absorbed by the core material and transformed into ice, producing artificial snow. Due to its mechanism, its efficiency was affected by the outside air temperature, and the production of ice core material could not be sufficiently performed unless the outside air temperature was below minus 2 degrees Celsius. High-pressure air (first fluid)
Was consuming. Next, the conventional fan type has a (fourth fluid) mechanism for sucking and ejecting a large amount of outside air having a minus temperature by a fan driven by electric or hydraulic pressure, and pressurized water (second fluid) ejected from about 200 fine nozzles. Fluid) to supercooled water. A mixed flow of pressurized water and high-pressure air for adiabatic expansion (fifth fluid) is jetted from the ultrafine nozzle to the outer periphery to generate an ice core material. The supercooled water generated by about 200 fine nozzles was adsorbed by the ice core material and transformed into ice, and artificial snow was generated. Although a small amount of high pressure air for adiabatic expansion (first fluid) is used to generate the ice core material, the mechanism for transforming into supercooled water and the mechanism for generating the ice core material are separated. It was not possible to produce satisfactorily unless the temperature was below -3 ° C due to the influence of the outside temperature. This is a very serious problem that facilities cannot be used while the possible snowfall time of artificial snow decreases due to the global warming described above.

[0003]

The snow environment of such a ski resort is further reduced in the snow due to the progress of global warming in the future. And the southern part of the country due to the lack of snow,
The fundamentals of ski resort management will be shaken. The present invention has been invented to meet the demands of such ski resort managers and ski industry workers.

[0004]

Means for Solving the Problems Now, the structure will be sequentially described in claims 1, 2, 3, and 4. The configuration of claim 1. (A) A nozzle (2) is provided inside an artificial snowfall machine of the gun type (1). (B) From a nozzle (2), an external device (cooling air processing device) supplies “dry air that is free from condensation and freezing in the third fluid supply pipe at a minus temperature at which water can be quickly frozen” as a third fluid. Inject. The configuration according to claim 2. (A) A nozzle (3) is provided outside the artificial snowfall machine of the gun type (2). (B) From the nozzle (3), as a third fluid, “dry air that is free from condensation and freezing in the third fluid supply pipe at a minus temperature at which water can be quickly frozen” is supplied from an external device (cooling air processing device). Inject. The configuration according to claim 3. (A) A nozzle (6) is provided on the inner periphery of a fan type (5) artificial snowfall machine. (B) From the nozzle (6), “dry air that does not freeze and condense in the third fluid supply pipe at a minus temperature at which water can be quickly frozen” is supplied as a third fluid from an external device (cooling air processing device). Inject. The configuration according to claim 4. (A) A nozzle (7) is provided around the fan type (6) artificial snowfall machine. (B) As a third fluid, "dry air free of condensation and freezing in the third fluid supply pipe at a minus temperature at which water can be quickly frozen" is supplied from a nozzle (7) by an external device (cooling air processing device). Inject. The device is operated as described above.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, according to an embodiment of the present invention, in the case of a gun type, when supercooled water and an ice core material are produced by a single collecting nozzle, the production ratio is determined by each gun manufacturer. It varies, and the ratio appears as a difference in the performance of snowfall. As a term to express the difference in performance, snowfall can occur even in a high temperature range of the outside air temperature, but the amount of snowfall is small. Conversely, snow cannot fall in the high temperature range of outside air temperature, but can snow in large quantities in the low temperature range. The difference in performance is determined by the rate of formation of supercooled water and ice core material.To increase the rate of formation of ice core material, a mixing method of ultra-fine particle size of water and a jet nozzle It is necessary to squeeze the wide angle flat jet. In this case, the amount of pressurized water is limited due to resistance, and the amount of snowfall is reduced. According to the present invention, a snowfall method in which ice core material is forcibly self-generated before and after an ejection port enables snowfall even in a high temperature region of the outside air temperature, and further employs a nozzle capable of reducing ejection resistance to increase snowfall ability. It becomes possible. The “dry air that is free from condensation and freezing in the third fluid supply pipe at a minus temperature at which water can be quickly frozen” of the third fluid injected from the nozzle (2) of claim 1 and the nozzle (3) of claim 2 is An ice core material is reliably generated in the mixing space. Further, it is known that when frozen in fine particles, water is electrically frozen and polarized and negatively charged. The water adsorbs supercooled water particles, transforms them into ice, and falls into the slope without scattering in the air. Further, if the third fluid has a surplus minus heat, the supercooled water has an effect of increasing. In the case of the fan type, the “dry air that is free from condensation and freezing in the third fluid supply pipe at a minus temperature at which water can be quickly frozen,” of the third fluid injected from the nozzle (6) according to claim 3 is generated inside the fan drum. Produces fine ice core material without fail. The nozzle (7) according to claim 4 is also caught in the helical fluid provided by the fan, and reliably produces a fine ice core material in the mixing reaching space. With the above-mentioned gun type electric charging effect,
If the third fluid has a surplus minus heat, there is an effect that the amount of supercooled water increases. In particular, in the case of a fan type, it is possible to efficiently lower the temperature of the spiral fluid by increasing the third fluid. The effect can greatly increase the amount of snowfall. Further effects can be obtained if the third fluid nozzles of the first and second aspects and the third and fourth aspects of the invention are provided side by side.

[0006]

As described above, the snowfall method in which the ice core material is forcibly self-generated can be used effectively and efficiently. While natural snowfall decreases due to global warming, a snowfall method that can improve the snow environment at ski resorts can be established.

[Brief description of the drawings]

FIG. 1 is a sectional view of the first embodiment;

FIG. 2 is a sectional view according to claim 2;

FIG. 3 is a sectional view according to claim 3;

FIG. 4 is a half sectional view according to claim 4;

[Explanation of symbols]

 (1) Gun type artificial snowfall machine (2) Nozzle (3) Nozzle (4) Nozzle (5) Fan type artificial snowfall machine (6) Nozzle (7) Nozzle

Claims (4)

[Claims] 1. An artificial snowfall machine of the gun type, in which three kinds of fluids are mixed and ejected inside the apparatus. (B) A nozzle (2) is provided inside a gun type (1) artificial snowfall machine. (B) From the nozzle (2), as a third fluid, “at a minus temperature at which water can be quickly frozen,
The "dry air free from dew condensation and freezing" is ejected as a third fluid into a two-fluid mixed flow of high-pressure air for adiabatic expansion (first fluid) and pressurized water (second fluid). A gun-type artificial snowfall machine configured as described above. 2. An artificial snowfall machine of the gun type wherein the third fluid of the three types of fluids is impact-mixed outside the apparatus. (B) A nozzle (3) is provided outside the gun type (1) artificial snowfall machine. (B) From the nozzle (3), as a third fluid, “at a minus temperature at which water can be quickly frozen,
Dry air without condensation and freezing is mixed with high-pressure air for adiabatic expansion (first fluid) mixed inside an artificial snowfall machine and pressurized water (second fluid).
The fluid (2) is ejected from the outside of the two-fluid mixing ejection nozzle (4), and is subjected to collision mixing. A gun-type artificial snowfall machine configured as described above. 3. An outside air (fourth fluid), pressurized water (second fluid),
In addition to the high pressure air for adiabatic expansion (first fluid), the mixed flow of pressurized water and the high pressure air for adiabatic expansion (fifth fluid), as a third fluid, "at a minus temperature at which water can be quickly frozen, A fan-type artificial snowfall that mixes and blows out "dry air that does not freeze and freeze" on the inner periphery of the device. (B) A nozzle (6) is provided inside the artificial snowfall machine of the fan type (5). (B) The nozzle (6) mixes and ejects “dry air that is free from condensation and freezing in the third fluid supply pipe at a minus temperature at which water can be quickly frozen” as the third fluid to the inner periphery of the artificial snowfall machine. A fan-type artificial snowfall machine configured as described above. 4. A fan type in which "dry air that is free from condensation and freezing in the third fluid supply pipe at a minus temperature at which water can be quickly frozen" is mixed as a third fluid in the outer periphery of the apparatus. Artificial snowfall machine. (B) A nozzle (7) is provided around the fan type (6) artificial snowfall machine. (B) As the third fluid from the nozzle (7), “dry air that is free from condensation and freezing in the third fluid supply pipe at a minus temperature at which water can be quickly frozen” is impact-mixed around the artificial snowfall machine. A fan-type artificial snowfall machine configured as described above.