JPH0573478U - Snowfall - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a snowfall device capable of causing artificially made snowflakes to fall in the air at room temperature like actual snowflakes. [Structure] The inside of the snow making chamber 3 is kept at a low temperature by a cooler 5, and fog is ejected from the nozzle 12 into the snow making chamber 3 to grow artificial snow to a snow catching body 7 and The artificial snow made in 1. is dropped into the wind passage 2, and the artificial snow falling in the wind passage 2 is blown off to the outside by the blower 15 so that the artificial snow falls.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a snowfall device for artificially making snow in an environmental test room, a museum, a broadcasting station, a theater, an amusement park, various event venues, and the like.

[0002]

[Prior Art]

 A conventional snowfall device breaks ice blocks into flakes and blows them off with a blower to produce artificially made snow.

[0003]

[Problems to be solved by the device]

 The conventional method of crushing ice cubes and blowing them away has the drawback that artificial snow does not fall like actual snow, which makes it unrealistic for artificial snow to fall at broadcasting stations, theaters, and event venues.

Further, since artificial snow obtained by crushing ice blocks easily melts, it was necessary to set the atmosphere in which the snow was to fall to a low temperature room.

The present invention has been proposed in order to solve the problems of such conventional techniques, and artificially made snow can be made to fall in the air at room temperature like actual snow. An object of the present invention is to provide a snowfall device capable of snowfall.

[0006]

[Means for Solving the Problems]

 In order to achieve this purpose, the snowfall device according to the present invention maintains a low temperature inside the snowmaking chamber with a cooler, and a fine mist is sprayed from a nozzle into this snowmaking chamber to grow artificial snow. The artificial snow made indoors is dropped into the wind passage, and the artificial snow falling in the wind passage is blown off to the outside by a blower to make the artificial snow fall.

[0007]

[Advantage] According to the configuration described above, the artificial snow frozen by spraying a fine mist into the snowmaking room kept at a low temperature is less likely to be melted than the artificial snow made by crushing ice blocks, and the room temperature is low. Not only can snow fall inside, but frozen artificial snow also falls like real snow.

[0008]

【Example】

 Hereinafter, a specific embodiment of the snowfall device according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of this snowfall device.

In this figure, a snow-making chamber 3 is provided above a wind passage 2 which is laterally formed in a lower portion of a device body 1 surrounded by a heat insulating wall 1 a. A cooler 5 equipped with a blower fan 4 is installed on the inner side. The cooling air blown out from the cooler 5 is circulated in the apparatus main body 1 by the cold air circulation fan 6, and the snowmaking chamber 3 is maintained at a low temperature of, for example, −5 ° C. or lower.

In the upper part of the snow-making chamber 3, a permeable snow catcher 7 made of, for example, a synthetic resin cloth material or net material is provided. As shown in FIG. 2, the snow catching body 7 is stretched vertically between upper and lower holding plates 8 and 9, and a snow generating chamber 10 is formed between the snow catching bodies 7. The sub-freezing low-temperature air created by the cooler 5 is sent to the snow-generating chamber 10 by the circulation fan 6, passes through the snow catcher 7 while rising, and returns to the cooler 5 to be cooled and sent out again. .. In the figure, the arrow P indicates the flow of cooling air.

A nozzle 12 connected to pipes 11 a and 11 b to which water and pressurized air are sent from the outside is attached to the upper holding plate 8. A fine mist is jetted at. The fog comes into contact with the low temperature air in the snow generating chamber 10 and immediately freezes, forming ice crystals of small particles and adhering to the inner surface of the snow trap 7. In the snow catching body 7, artificial snow grows from the ice crystals, and a snow layer is formed on the inner surface of the snow catching body 7.

A snow scraping device 14 such as a rotating brush driven by a motor 13 is installed on the outer surface of the snow catching body 7 in the width direction of the snow catching body 7. By reciprocating up and down while hitting the snow catcher 7, the snow layer on the inner surface is blown off into each of the lower air passages 2.

Each air passage 2 communicating with the snow-generating chamber 10 is provided so as to laterally penetrate the lower portion of the device main body 1, and a blower 15 and a blower amount adjusting damper 16 are provided on the air intake port 2a side. Each is installed. Further, a damper 17 for adjusting the amount of snowfall and for turning the snowfall on and off is attached to the outlet 2b of the air passage 2 projecting to the front side of the apparatus body 1. When the dampers 15 and 17 are opened and air is blown into the air passages 2 and 2 by the blower 15, snow falling from the snow generating chambers 10 and 10 into the air passages 2 and 2 is discharged from the outlet 2b as artificial snow. It is blown out to snow at room temperature.

[0014]

[Effect of the device]

 As described above, according to the present invention, the artificial snow grown by spraying a fine mist into the snowmaking chamber is difficult to melt, so that the artificial snow can be allowed to fall at room temperature. Therefore, it is not necessary to maintain the snow-making atmosphere at a low temperature as in the conventional case, and the facility can be simplified.

Further, since artificial snow frozen in the snow making room falls like actual snow, unlike the conventional artificial snow made by crushing ice blocks into flakes, it is possible to experience the situation of falling snow. You can create a sense of place.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a snowfall device according to the present invention.

[Explanation of symbols]

 1 Device Main Body 1a Insulation Wall 2 Airway 2a Air Intake Port 2b Outlet Port 3 Snowmaking Room 5 Cooler 6 Cold Air Circulation Fan 7 Snow Capture Body 8, 9 Holding Plate 10 Snow Generation Room 11a, 11b Piping 12 Nozzle 13 Motor 14 Snow Scraping device 15 Blower 16,17 Damper

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[Procedure amendment]

[Submission date] March 25, 1993

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Brief explanation of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a snowfall device according to the present invention.

FIG. 2 is a sectional view taken along line AA of the above.

[Explanation of reference numerals] 1 device body 1a heat insulating wall 2 wind passage 2a air intake port 2b blowout port 3 snow making chamber 5 cooler 6 cold air circulation fan 7 snow catcher 8, 9 holding plate 10 snow generating chamber 11a, 11b pipe 12 Nozzle 13 Motor 14 Snow scraping device 15 Blower 16,17 Damper

Claims (1)

[Scope of utility model registration request] 1. A snow trap made of a breathable material is installed in a snow making room in which a low temperature air is circulated by a cooler, and a fog generator is provided in the snow making room. The artificial snow grows on the snow trap by ejecting fog from it, drops the artificial snow thrown off from this snow trap into the wind duct, and blows the artificial snow falling in the wind duct to the outside with a blower to generate artificial snow. A snowfall device characterized by causing it to fall.