JPH03125876A - Blizzard nozzle for artificial snow falling device - Google Patents

Blizzard nozzle for artificial snow falling device

Info

Publication number
JPH03125876A
JPH03125876A JP26289789A JP26289789A JPH03125876A JP H03125876 A JPH03125876 A JP H03125876A JP 26289789 A JP26289789 A JP 26289789A JP 26289789 A JP26289789 A JP 26289789A JP H03125876 A JPH03125876 A JP H03125876A
Authority
JP
Japan
Prior art keywords
deflector
snow
nozzle
deflectors
blizzard
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
Application number
JP26289789A
Other languages
Japanese (ja)
Inventor
Yukio Isoda
幸雄 磯田
Koji Nakagawa
中川 幸二
Wahei Yoshihiro
吉弘 和平
Hiromi Kunieda
国枝 広美
Akio Mori
昭雄 盛
Osamu Suzuki
修 鈴木
Yuzo Sato
雄三 佐藤
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.)
Hitachi Ltd
Hitachi Plant Technologies Ltd
Toyota Motor Corp
Original Assignee
Hitachi Techno Engineering Co Ltd
Hitachi Ltd
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Techno Engineering Co Ltd, Hitachi Ltd, Toyota Motor Corp filed Critical Hitachi Techno Engineering Co Ltd
Priority to JP26289789A priority Critical patent/JPH03125876A/en
Publication of JPH03125876A publication Critical patent/JPH03125876A/en
Pending legal-status Critical Current

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  • Nozzles (AREA)

Abstract

PURPOSE:To obtain a nozzle for an artificial snow falling device, which is prominent in the distributions of blizzard concentration and air speed, by a method wherein the nozzle is provided with a slant plate at the tip of a deflector at the upstream side of the snow falling port of the same, a rectangular deflector below the snow falling port and a deflector having slanted configuration at the upper part of the downstream side of the snow falling port while said deflectors are moved respectively in vertical direction. CONSTITUTION:A snow falling port is provided with a rectangular deflector 5 at the lower part of the downstream side of the same and the other deflectors 4 having slanted plates at the upper part of the downstream of the same. These deflectors are operated in conjunction with each other. In an initial period, distances between the deflectors 4 and the deflector 5 are restrained within a given length in order to reduce the amount of snow remaining without being blown away, whereby the air speed is kept in a value higher than a given value. Subsequently, both of the upper deflectors 4 and the lower deflector 5 are operated up-and-down simultaneously. The flow of blizzard is moved in up-and-down direction by said operation and, therefore, the adjustment of the distribution of blizzard concentration may be effected. Finally, the upper deflectors 4 are moved up-and-down slightly. According to the slight movement, the height, whereat artificial snow fall through a throwing port changes the direction into horizontal flow, can be adjusted whereby the distribution of blizzard concentration may be adjusted delicately.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は人工降雪装置用吹雪ノズルに係り、特に吹雪状
態を再現するのに好適な人工降雪装置用吹雪ノズルに関
する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a blowing snow nozzle for an artificial snow-making device, and particularly to a blowing snow nozzle for an artificial snow-making device suitable for reproducing a snowstorm condition.

〔従来の技術〕[Conventional technology]

従来の人工装置用吹雪ノズルには製雪機で造られた模擬
雪を単にノズルより吹出すものが知られている。なお、
この種のものとしては例えば特開昭58−75678号
記載のものがある。
BACKGROUND ART Conventional snow blowing nozzles for artificial devices are known that simply blow out simulated snow made by a snowmaking machine from the nozzle. In addition,
An example of this type is the one described in JP-A-58-75678.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記の従来技術は、自然界に生じる地吹雪等の雪量が多
い気象条件についての配慮がされておらず、雪量の多い
試験を行なう際には、−度、雪を貯めておく必要があり
、貯めた雪の堆積による固まり、及びその輸送方法に問
題があった6〔課題を解決するための手段〕 上記目的を達成するために、本発明はノズルの雪落とし
口上流側デフレクタ−先端部に斜め板、雪落とし目下部
に短形のデフレクタ−及び雪落とし目下流上部に斜め形
状を有するデフレクタ−を設け、これらデフレクタ−が
各々上下方向に動くようにしたものである。
The above-mentioned conventional technology does not take into consideration the weather conditions where there is a large amount of snow, such as blizzards that occur in nature, and when conducting tests with large amounts of snow, it is necessary to store -30 degrees of snow. 6 [Means for Solving the Problems] In order to achieve the above object, the present invention provides a deflector tip on the upstream side of the snow removal opening of the nozzle. A diagonal plate, a rectangular deflector at the bottom of the snow drop, and a diagonal deflector at the upper downstream side of the snow drop are provided, and these deflectors are arranged to move in the vertical direction.

(作用〕 ノズルの雪落とし口上流側デフレクタ−は、雪落とし口
部の風速を速くするように動作する。このため、雪が静
圧の吹き上げ作用により落下しなくなる。しかし、この
デフレクタ−だけで番よ風速分布はノズル吹き目下側が
速くなり吹雪濃度分布が悪くなる。そこで、雪落し目下
流下部側こも短形デフレクタ−を設け、さらに雪落し目
下流上部しこ斜め板を有するデフレクタ−を設けた。こ
れらのデフレクタ−は互いに作用し、吹雪濃度分布を一
様にする。
(Function) The deflector on the upstream side of the snow removal opening of the nozzle operates to increase the wind speed at the snow removal opening.As a result, the snow will not fall due to the blow-up action of static pressure.However, this deflector alone will The wind speed distribution is faster on the lower side of the nozzle eye, and the blowing snow density distribution becomes worse.Therefore, a rectangular deflector was installed at the lower part of the downstream side of the snow drop eye, and a deflector with a diagonal plate was further installed at the upper part of the downstream side of the snow drop eye. .These deflectors interact with each other to make the snowstorm concentration distribution uniform.

〔実施例〕〔Example〕

以下本発明の人工降雪装置用吹雪ノズルの実施例を図に
よって、説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the snowstorm nozzle for an artificial snow-making device according to the present invention will be described below with reference to the drawings.

第1図は一実施例の横断面図で、ノズル13士製雪機(
図示せず)から模擬雪を落下させる雪落としロシュータ
ー2を上方に有して%Nる。この吹雪ノズル1内の上部
には送風機(図示せず)から送られてくる風の上流側に
上流デフレクタ−3が設けへれており、この上流デフレ
クタ−3は支点3aを支軸にしてその取付角度を自在に
調節可能に設けられている。この上流デフレクタ−3の
下流であって、かつ前記ノズル1の上部には雪落としロ
シューター2内を上下移動自在なように下流上部デフレ
クタ−4が設けられている。又、はぼこの下流上部デフ
レクタ−4の下方には下流下部デフレクタ−5が設けら
れている。エアシリンダー6aは、前記上流デフレクタ
ニ3の取付角度を調節するためのものであり、また、エ
アシリンダー6bは前記下流上部デフレクタ−4を上下
に移動させて下流上部デフレクタ−4の高さを調節する
ためのものである。ジヤツキ7はビット8に収納され、
前記下流下部デフレクタ−5を上下に移動させ、下流下
部デフレクタ−5の高さを調節するためのものである。
Figure 1 is a cross-sectional view of one embodiment of the snowmaking machine with 13 nozzles (
It has a snow-dropping shooter 2 above that drops simulated snow from (not shown). An upstream deflector 3 is provided in the upper part of this snowstorm nozzle 1 on the upstream side of the wind sent from a blower (not shown), and this upstream deflector 3 has a fulcrum 3a as its pivot. The mounting angle can be freely adjusted. An upper downstream deflector 4 is provided downstream of the upstream deflector 3 and above the nozzle 1 so as to be movable up and down within the snow removal shooter 2. Further, a lower downstream deflector 5 is provided below the hollow upper downstream deflector 4. The air cylinder 6a is for adjusting the mounting angle of the upstream deflector 3, and the air cylinder 6b moves the downstream upper deflector 4 up and down to adjust the height of the downstream upper deflector 4. It is for. Jacket 7 is stored in bit 8,
This is for moving the lower downstream deflector 5 up and down to adjust the height of the lower downstream deflector 5.

次に上記構成からなる人工降雪装用ノズルの作用につい
て説明する。
Next, the operation of the nozzle for artificial snowfall equipment having the above structure will be explained.

上流デフレクタ−3は、雪落とし口部の風速を速くする
ように動作する。一般のノズルの縮流比は4程度であり
、出口風速が60km/Hを超えると、雪落とし口の静
圧は約20 mm A qになり、雪が静圧の吹き上げ
により落下しなくなる。本デフレクタ−3は、落とし口
の風速を速くすることにより、静圧を低くする働きがあ
る。しかし、本デフレクタ−3だけだと、風速分布はノ
ズル吹き出し目下側が速くなり、吹雪濃度分布を調整す
ることは困難である。そこで、本実施例では、雪落とし
目下流下部に短形のデフレクタ−5を、下流上部に斜め
板を有するデフレクタ−4を設けた。これらのデフレク
タ−は互いに関連し合い動作する。
The upstream deflector 3 operates to increase the wind speed at the snow drop opening. The condensation ratio of a typical nozzle is about 4, and when the exit wind speed exceeds 60 km/H, the static pressure at the snow drop opening becomes about 20 mm Aq, and the snow stops falling due to the static pressure blowing up. This deflector 3 has the function of lowering static pressure by increasing the wind speed at the drop opening. However, if only the present deflector 3 is used, the wind speed distribution becomes faster on the lower side of the nozzle outlet, and it is difficult to adjust the blowing snow concentration distribution. Therefore, in this embodiment, a rectangular deflector 5 is provided at the lower downstream of the snow drop, and a deflector 4 having a diagonal plate is provided at the upper downstream. These deflectors operate in conjunction with each other.

初めに、ノズル内に、雪が飛ばされずに残る量を少なく
するため、これらデフレクタ−4,5間の距離をある長
さ以内に押え、風速を一定値以上にするものとする。次
に上部デフレクタ−4、下部デフレクタ−5共に同時に
上下に動かす。それによって、吹雪の流れは、上下方向
に移動することになるので、吹雪濃度分布の調整ができ
る。最後に、微調整の為、上部デフレクタ−4を少量上
下に移動する。それによって、投入口より落下する模擬
雪が水平方向に流れを変える高さが調整でき、吹雪濃度
分布の微調整が可能になる。
First, in order to reduce the amount of snow remaining in the nozzle without being blown away, the distance between the deflectors 4 and 5 is kept within a certain length, and the wind speed is kept above a certain value. Next, both the upper deflector 4 and the lower deflector 5 are moved up and down simultaneously. As a result, the flow of the blizzard moves in the vertical direction, so the concentration distribution of the blizzard can be adjusted. Finally, for fine adjustment, move the upper deflector 4 up and down a small amount. This makes it possible to adjust the height at which the simulated snow falling from the inlet changes its flow in the horizontal direction, making it possible to fine-tune the snowstorm concentration distribution.

一般に、上記デフレクタ−の動作は、吹雪濃度分布、風
速分布共に影響する。上記動作方法は、吹雪濃度分布を
優先するものであるが、下流下部部デフレクタ−5によ
り、従来問題になっていた出口上側の低風速が改善され
、風速分布も大幅に改善される。
Generally, the operation of the deflector affects both the snowstorm concentration distribution and the wind speed distribution. The above operating method gives priority to the blowing snow concentration distribution, but the lower downstream deflector 5 improves the low wind speed above the exit, which has been a problem in the past, and also significantly improves the wind speed distribution.

本実施例により得られる分布精度は概略、第2図及び第
3図に示すように吹雪濃度分布±10%。
The distribution accuracy obtained by this example is roughly ±10% of the snowstorm concentration distribution, as shown in FIGS. 2 and 3.

風速分布±10%である。Wind speed distribution is ±10%.

また、風速分布のフィードバック制御を可能にした他の
実施例を第4図に示す。
FIG. 4 shows another embodiment that enables feedback control of the wind speed distribution.

上記実施例に比較してピトー管9.差圧変換器10、演
算器11が加されている。ピトー管9により上下方向の
風速(圧力)を計測し、差圧変換器10で電気信号とす
る。本2つの電気信号を演算器11で比較し、上方の風
速が低い場合には。
Compared to the above embodiment, pitot tube 9. A differential pressure converter 10 and a calculator 11 are added. The vertical wind speed (pressure) is measured by the pitot tube 9, and converted into an electrical signal by the differential pressure converter 10. These two electric signals are compared by the calculator 11, and if the upper wind speed is low.

下流下部デフレクタ−5を上方に移動し、上方風速が低
い場合は、下流上部デフレクタ−4を下方に移動する。
The downstream lower deflector 5 is moved upward, and when the upward wind speed is low, the downstream upper deflector 4 is moved downward.

本実施例によれば、吹出口での風速分布を向上させる効
果がある。
According to this embodiment, there is an effect of improving the wind speed distribution at the outlet.

また、吹雪ノズル1内に雪が残留する量を少なくしたさ
らに他の実施例を第r図に示す6上記第1図に示す実施
例に比較して、下流下部デフレクタ−12形状が流れの
方向に吹雪ノズル口の近傍まで長くなっているものであ
る。
Further, another embodiment in which the amount of snow remaining in the snowstorm nozzle 1 is reduced is shown in FIG. 6. Compared to the embodiment shown in FIG. The length extends to the vicinity of the snowstorm nozzle opening.

上記のように構成することによって、第6図に示すよう
、デフレクタ−下流部で発生する渦の発生を防ぐことが
できる。下流部で渦が発生すると、雪が堆積するが、本
デフレクタ−12では、渦の発生が無い為、雪の残留が
無い。本実施例によると、吹雪ノズル内の雪の歩留りを
少なくすることができる。
By configuring as described above, as shown in FIG. 6, it is possible to prevent the generation of vortices in the downstream portion of the deflector. When a vortex is generated in the downstream portion, snow accumulates, but in this deflector 12, since no vortex is generated, no snow remains. According to this embodiment, the yield of snow inside the snowstorm nozzle can be reduced.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、吹雪濃度分布、風速分布の優れた人工
降雪装置用ノズルが得られ、実際の吹雪状況下でのシュ
ミレーション試験を実施できる効果がある。
According to the present invention, it is possible to obtain a nozzle for an artificial snow-making device with excellent blizzard concentration distribution and wind speed distribution, and it is possible to carry out simulation tests under actual blizzard conditions.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の人工降雪装置用ノズ/Qの一実施例の
横断面図、第2図は第1図に示す実施例により得られる
吹雪分布精度を示す図、第3図は同様に風速分布精を示
す図、第4図は本発明の他の実施例の横断面図、第5図
は本発明のさらに他の実施例の横断面図、第6図は第5
図に示す実施例により得られる風の流れ状態を示す図で
ある。 1・・・吹雪ノズル、2・・・零落としロシューター、
3・・・上流デフレクタ−14・・・下流上部デフレク
タ−5,12・・・下流下部デフレクタ−16a、6b
・・・エアシリンダー、7・・・ジヤツキ、9・・・ピ
トー管、u l 図
FIG. 1 is a cross-sectional view of one embodiment of the noz/Q for an artificial snow-making device of the present invention, FIG. 2 is a diagram showing the blowing snow distribution accuracy obtained by the embodiment shown in FIG. 1, and FIG. 3 is a similar diagram. 4 is a cross-sectional view of another embodiment of the present invention, FIG. 5 is a cross-sectional view of still another embodiment of the present invention, and FIG. 6 is a cross-sectional view of another embodiment of the present invention.
It is a figure which shows the flow state of the wind obtained by the Example shown in a figure. 1... Blizzard nozzle, 2... Zero drop shooter,
3...Upstream deflector-14...Downstream upper deflector-5, 12...Downstream lower deflector-16a, 6b
...Air cylinder, 7. Jack, 9. Pitot tube, u l diagram

Claims (1)

【特許請求の範囲】[Claims] 1、人工降雪装置に取付けて模擬雪を吹出して人工の吹
雪を再現する人工降雪装置用吹雪ノズルにおいて、落下
する模擬雪を受けるシユーターを有するノズルと、前記
シユーターの上流にあつて前記ノズル内の上部に取付け
た上流デフレクターと、この上流デフレクターの下流に
あり、前記シユーター内において前記ノズルの上部から
突出して取付けた下流上部デフレクターと、前記ノズル
下部から突出して取付けた下流上部デフレクターとから
なることを特徴とする人工降雪装置用吹雪ノズル。
1. A blizzard nozzle for an artificial snow-making device that is attached to an artificial snow-making device and blows out simulated snow to reproduce an artificial snowstorm; An upstream deflector attached to the upper part, an upper downstream deflector installed downstream of the upstream deflector and protruding from the upper part of the nozzle in the shooter, and an upper downstream deflector attached to protrude from the lower part of the nozzle. Features: A blowing snow nozzle for artificial snowfall equipment.
JP26289789A 1989-10-11 1989-10-11 Blizzard nozzle for artificial snow falling device Pending JPH03125876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26289789A JPH03125876A (en) 1989-10-11 1989-10-11 Blizzard nozzle for artificial snow falling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26289789A JPH03125876A (en) 1989-10-11 1989-10-11 Blizzard nozzle for artificial snow falling device

Publications (1)

Publication Number Publication Date
JPH03125876A true JPH03125876A (en) 1991-05-29

Family

ID=17382136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26289789A Pending JPH03125876A (en) 1989-10-11 1989-10-11 Blizzard nozzle for artificial snow falling device

Country Status (1)

Country Link
JP (1) JPH03125876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005164062A (en) * 2003-11-28 2005-06-23 Sharp Corp Air conditioner
JP2019120462A (en) * 2018-01-09 2019-07-22 株式会社日立プラントメカニクス Artificial snowfall device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005164062A (en) * 2003-11-28 2005-06-23 Sharp Corp Air conditioner
JP2019120462A (en) * 2018-01-09 2019-07-22 株式会社日立プラントメカニクス Artificial snowfall device

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