JPH09100650A - Snow melting method of membrane structure roof - Google Patents
Snow melting method of membrane structure roofInfo
- Publication number
- JPH09100650A JPH09100650A JP26025795A JP26025795A JPH09100650A JP H09100650 A JPH09100650 A JP H09100650A JP 26025795 A JP26025795 A JP 26025795A JP 26025795 A JP26025795 A JP 26025795A JP H09100650 A JPH09100650 A JP H09100650A
- Authority
- JP
- Japan
- Prior art keywords
- snow
- electromagnetic wave
- roof
- wave generator
- membrane
- 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
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Tents Or Canopies (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、大空間建築物に採
用されている膜構造の屋根面に適用される融雪方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow melting method applied to a membrane-structured roof surface used in large space buildings.
【0002】[0002]
【従来の技術】大空間建築物に採用されている膜構造屋
根に積雪があった場合、そのまま放置しておくと、建物
の崩壊や、長期的劣化などの弊害がある。そこで例えば
特公平5−78735号公報には複数の構造用フレーム
パイプに温風吹出し口を穿設しておき、送風機からの温
風をこの構造用フレームパイプを通じて屋根面に送風
し、融雪する装置が開示されている。2. Description of the Related Art If there is snow on a membrane structure roof used in a large-scale building, leaving it as it is will cause the building to collapse and cause long-term deterioration. Therefore, for example, in Japanese Examined Patent Publication (Kokoku) No. 5-78735, a plurality of structural frame pipes are provided with hot air outlets, and hot air from a blower is blown to the roof surface through the structural frame pipes to melt snow. Is disclosed.
【0003】[0003]
【発明が解決しようとする課題】しかし、この装置で
は、構造用フレームパイプの配置間隔が広いと、その中
間位置の融雪ができない問題があった。However, this device has a problem that if the structural frame pipes are arranged at large intervals, snow cannot be melted at an intermediate position.
【0004】また特に、図4に示すように、ノズル10
からの温風吹付け面では、雪Aは十分に融雪され、水と
なって流出するが、その周囲では溶けず、積雪の下部、
すなわち膜屋根12の表面に接する部分において融雪の
不揃いを生じて、トンネル状の雪洞A2 が形成される。
するとこの雪洞の上面では、断熱性のある雪の層が薄く
なり、断熱性が弱まり、熱貫流率が大きくなる。従っ
て、熱はこの熱貫流率の大きい部分すなわちヒートブリ
ッジ(熱橋)A1 を通って大量に外部(屋外)へ流れ
る。かくして、ノズルからの温風の熱は、雪を溶かすこ
となく、そのまま大気中に放散されることになり、熱の
ロスを生じ、融雪するのに時間がかかり、融雪効率が低
下する欠点があった。Further, in particular, as shown in FIG.
On the surface where the warm air is blown from, the snow A is sufficiently melted and becomes water and flows out, but it does not melt around it and the bottom of the snow,
That is, the snow melting is uneven in the portion in contact with the surface of the membrane roof 12, and a tunnel-shaped snow tunnel A2 is formed.
Then, on the upper surface of the snow cave, the snow layer with heat insulation becomes thin, the heat insulation is weakened, and the heat transmission coefficient increases. Therefore, a large amount of heat flows to the outside (outdoor) through the portion having a large heat transmission coefficient, that is, the heat bridge A1. Thus, the heat of the warm air from the nozzles is radiated to the atmosphere as it is without melting the snow, resulting in a loss of heat, it takes time to melt the snow, and the snow melting efficiency decreases. It was
【0005】他の融雪装置としては、例えば特開昭62
−197502号公報には、線状または板状に形成した
熱誘導体を電磁波加熱装置に連結して構成した融雪装置
が開示されている。しかし、この加熱装置は熱誘導体を
加熱し、その周囲につもった雪をその熱で溶かすため、
加熱原理としては、電磁波を使用する点で、本発明とや
や類似するが、一旦、他の物質を高熱にし、この熱を雪
に伝達させる点で、前記温風吹付けと同様であり、しか
も熱による屋根材料に対する影響も出るといった欠点が
あった。As another snow melting device, for example, JP-A-62-62
Japanese Patent Laid-Open No. 197502 discloses a snow melting device configured by connecting a linear or plate-shaped heat derivative to an electromagnetic wave heating device. However, this heating device heats the heat conductor and melts the snow accumulated around it with the heat,
The heating principle is somewhat similar to the present invention in that it uses electromagnetic waves, but it is the same as the above-mentioned hot air blowing in that it heats other substances to a high temperature and transfers this heat to snow. However, there was a drawback in that it also affected the roof material.
【0006】本発明は、以上の問題を解決するものであ
って、雪洞現象を生ずることなく、また、屋根材料に影
響を及すことなく効率的に融雪できるようにした膜構造
屋根の融雪方法を提供することを目的としている。[0006] The present invention is to solve the above problems, a snow melting method for a membrane structure roof, which is capable of efficiently melting snow without causing a snow cave phenomenon and without affecting the roof material. Is intended to provide.
【0007】[0007]
【課題を解決するための手段】前記目的を達成するた
め、本発明のうち請求項1記載の発明は、ドーム型をし
た膜構造屋根の建物における屋根膜の頂部につもった雪
を融雪し、排除する方法において、前記屋根膜の下部
に、電磁波発生装置を対面させ、該電磁波発生装置から
照射される電磁波の誘電加熱により、融雪するものであ
る。In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention comprises melting snow on the top of a roof membrane in a dome-shaped membrane structure roof, In the method of excluding the snow, an electromagnetic wave generator is made to face the lower part of the roof membrane, and the snow is melted by dielectric heating of the electromagnetic wave emitted from the electromagnetic wave generator.
【0008】従って、屋根膜を透過した電磁波は、表面
に積った雪の分子を振動させることで熱エネルギーを生
じさせ、これによって電磁波の到達範囲全体を融雪す
る。Therefore, the electromagnetic waves that have passed through the roof membrane generate thermal energy by vibrating the snow molecules accumulated on the surface, thereby melting the entire reach of the electromagnetic waves.
【0009】また、本発明のうち請求項2記載の発明
は、前記屋根膜の頂部近傍の内側に前記電磁波発生装置
のガイドを設け、該ガイドに沿って前記電磁波発生装置
を移動可能に配置することによって、電磁波発生装置が
小型であって照射範囲が小さくても、移動により積雪し
やすい部位全体をカバーできる。According to a second aspect of the present invention, a guide for the electromagnetic wave generator is provided inside the roof membrane near the top, and the electromagnetic wave generator is movably arranged along the guide. As a result, even if the electromagnetic wave generator is small and the irradiation range is small, it is possible to cover the entire region where snow is easily caused by movement.
【0010】[0010]
【発明の実施の形態】以下、本発明の好ましい実施の形
態を添付図面を参照しながら詳細に説明する。Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
【0011】図1は、本発明が適用される屋根構造膜を
有する建物を示しており、グランド面GLに構築された
建物基礎1上には、ラチス形支持フレーム2がアーチ状
に構築され、この支持フレーム2上に膜屋根3が張設さ
れ、建物全体を覆っている。この構造において、膜屋根
3の頂部近辺部位3aは、比較的緩勾配であり、この部
位3aに降雪した雪Aはそのままの形で積雪し、膜屋根
3を圧迫する。また、周縁部位3bは、急勾配であるた
め、雪Aは建物周囲に滑り落ちやすい。FIG. 1 shows a building having a roof structure membrane to which the present invention is applied. On a building foundation 1 constructed on a ground plane GL, a lattice type support frame 2 is constructed in an arch shape, A membrane roof 3 is stretched over the support frame 2 and covers the entire building. In this structure, the portion 3a near the top of the membrane roof 3 has a relatively gentle slope, and the snow A that has fallen on this portion 3a accumulates as it is and presses against the membrane roof 3. Further, since the peripheral portion 3b has a steep slope, the snow A is likely to slide down around the building.
【0012】それ故、本発明では、この頂部近辺部位3
aを融雪対象とし、この部分に融雪装置を配置してい
る。Therefore, in the present invention, the portion 3 near the top is
The snow melting target is a, and the snow melting device is arranged in this portion.
【0013】融雪装置は、支持フレーム2に懸架された
支持ブラケット4の間に配置され、かつ膜屋根3の頂部
側軌跡と平行する一対のガイドレール5と、各ガイドレ
ール5に沿って移動可能に配置された台車6と、台車6
上に固定された電磁波発生装置7とからなっている。The snow melting device is arranged between the support brackets 4 suspended on the support frame 2 and is movable along the pair of guide rails 5 parallel to the locus on the top side of the membrane roof 3. Trolley 6 placed in the
It is composed of an electromagnetic wave generator 7 fixed on the top.
【0014】電磁波発生装置7は、図示しないが、2.
5GHz程度の波長帯域の電磁波を発生させるマグネト
ロンなどを内蔵したもので、その頂部に設けられた電磁
波の射出口である導波管8の開口面を前記膜屋根3に接
近して対面させている。The electromagnetic wave generator 7 is not shown in the figure.
A magnetron or the like for generating electromagnetic waves in a wavelength band of about 5 GHz is built in, and the opening surface of the waveguide 8 which is an emission port for electromagnetic waves provided on the top of the magnetron is close to and facing the film roof 3. .
【0015】図2は図1のイ−イ断面を示している。図
において、膜屋根3は二重膜となっており、何れも四弗
化エチレン樹脂コーティングガラス繊維シートなどの電
磁波透過性の素材から構成されている。FIG. 2 shows a cross section taken along the line EE of FIG. In the figure, the membrane roof 3 is a double membrane, and each is made of an electromagnetic wave permeable material such as a glass fiber sheet coated with tetrafluoroethylene resin.
【0016】従って、前記電磁波発生装置7を駆動しつ
つ台車を移動させることによって、その通過位置に膜屋
根3を介して導波管8と対面する雪Aは、電磁波を受け
ることによって内部振動を起し、その熱により融雪され
る。従って、電磁波のエネルギーは、ほとんど融雪に消
費されて温度はさほど上がらず、仮に雪洞が生じてヒー
トブリッジが構成されたとしても、これによる熱損失を
生じない。Therefore, by moving the carriage while driving the electromagnetic wave generator 7, the snow A facing the waveguide 8 through the membrane roof 3 at the passing position thereof receives internal electromagnetic waves by receiving the electromagnetic waves. It rises and the heat melts snow. Therefore, most of the energy of the electromagnetic waves is consumed by the snowmelt and the temperature does not rise so much, and even if a snow tunnel is formed and a heat bridge is formed, heat loss due to this is not generated.
【0017】なお、例えば図3に示すように、ガイドレ
ールを設けず、電磁波発生装置を高所作業者に積載し、
これにより融雪してもよく、この方法によれば、従来の
温風吹き出し式融雪装置の補助装置としても利用するこ
とができる。For example, as shown in FIG. 3, a guide rail is not provided, and the electromagnetic wave generator is loaded on a worker at a high place,
As a result, the snow may be melted, and according to this method, it can be used as an auxiliary device of a conventional warm air blowing type snow melting device.
【0018】[0018]
【発明の効果】以上実施の形態により詳細に説明したよ
うに、本発明のうち、請求項1記載の発明にあっては、
屋根膜を透過した電磁波は、表面に積った雪をその誘電
加熱によって振動させることで熱エネルギーを生じさ
せ、これによって融雪効率を向上できるとともに、膜屋
根その他の屋根面を構成する部材に熱を伝達することな
く、積雪のみを直接加熱するため、安全である。As described above in detail with reference to the embodiments, the invention according to claim 1 of the present invention is as follows.
Electromagnetic waves transmitted through the roof membrane generate thermal energy by vibrating the snow accumulated on the surface by its dielectric heating, which improves snow melting efficiency and heats the membrane roof and other members that make up the roof surface. It is safe because it heats only the snow directly without transmitting heat.
【0019】本発明のうち、請求項2記載の発明にあっ
ては、電磁波発生装置が小型であって照射範囲が小さく
ても、移動により積雪しやすい部位全体をカバーできる
利点がある。In the invention according to claim 2 of the present invention, there is an advantage that even if the electromagnetic wave generator is small and the irradiation range is small, it is possible to cover the entire region where snow is easily caused by movement.
【図1】本発明方法を適用した屋根構造膜を有する建物
の説明図である。FIG. 1 is an explanatory view of a building having a roof structure film to which the method of the present invention is applied.
【図2】図1におけるイ−イ線部分拡大断面図である。FIG. 2 is an enlarged cross-sectional view taken along line ii in FIG.
【図3】作業状態を示す説明図である。FIG. 3 is an explanatory diagram showing a working state.
【図4】従来の融雪装置における不具合を示す説明用断
面図である。FIG. 4 is an explanatory sectional view showing a problem in a conventional snow melting device.
3 膜屋根 5 ガイドレール 7 電磁波発生装置 8 導波管 3 Membrane roof 5 Guide rail 7 Electromagnetic wave generator 8 Waveguide
Claims (2)
る屋根膜の頂部につもった雪を融雪し、排除する方法に
おいて、 前記屋根膜の下部に、電磁波発生装置を対面させ、該電
磁波発生装置から照射される電磁波の誘電加熱により、
融雪することを特徴とする膜構造屋根の融雪方法。1. A method for melting and removing snow from the top of a roof membrane in a dome-shaped membrane structure building, wherein an electromagnetic wave generator is faced to a lower portion of the roof membrane, and the electromagnetic wave generator is provided. By the dielectric heating of the electromagnetic waves emitted from
A snow melting method for a membrane roof characterized by melting snow.
波発生装置のガイドを設け、該ガイドに沿って前記電磁
波発生装置を移動可能に配置することを特徴とする請求
項1記載の膜構造屋根の融雪方法。2. The membrane structure according to claim 1, wherein a guide of the electromagnetic wave generator is provided inside a top portion of the roof membrane, and the electromagnetic wave generator is movably arranged along the guide. How to melt snow on the roof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26025795A JPH09100650A (en) | 1995-10-06 | 1995-10-06 | Snow melting method of membrane structure roof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26025795A JPH09100650A (en) | 1995-10-06 | 1995-10-06 | Snow melting method of membrane structure roof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09100650A true JPH09100650A (en) | 1997-04-15 |
Family
ID=17345541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26025795A Pending JPH09100650A (en) | 1995-10-06 | 1995-10-06 | Snow melting method of membrane structure roof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH09100650A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003041807A (en) * | 2001-08-02 | 2003-02-13 | Ten Kk | Snow-melting method using ferrite magnetic material |
US6610969B2 (en) * | 2000-04-03 | 2003-08-26 | Forschungszentrum Karlsruhe Gmbh | Compact microwave system for de-icing and for preventing icing of the outer surfaces of hollow or shell structures which are exposed to meterological influences |
US6642490B2 (en) * | 2000-04-03 | 2003-11-04 | Forschungzentrum Karlsruhe Gmbh | Compact millimeterwave system for De-icing and for preventing the formation of ice on the outer surfaces of shell structures exposed to meterological influences |
KR100803667B1 (en) * | 2006-06-13 | 2008-02-19 | 신국식 | Apparatus and method for removing snow on vinylhouse |
JP2013221272A (en) * | 2012-04-13 | 2013-10-28 | Masahisa Sugiyama | Electromagnetic wave type snow melting method |
CN106760909A (en) * | 2016-11-25 | 2017-05-31 | 陈清 | A kind of awning for being convenient to clean tarpaulin |
CN108168197A (en) * | 2017-12-27 | 2018-06-15 | 青岛海尔股份有限公司 | Refrigerator and its defrosting control method |
-
1995
- 1995-10-06 JP JP26025795A patent/JPH09100650A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6610969B2 (en) * | 2000-04-03 | 2003-08-26 | Forschungszentrum Karlsruhe Gmbh | Compact microwave system for de-icing and for preventing icing of the outer surfaces of hollow or shell structures which are exposed to meterological influences |
US6642490B2 (en) * | 2000-04-03 | 2003-11-04 | Forschungzentrum Karlsruhe Gmbh | Compact millimeterwave system for De-icing and for preventing the formation of ice on the outer surfaces of shell structures exposed to meterological influences |
JP2003041807A (en) * | 2001-08-02 | 2003-02-13 | Ten Kk | Snow-melting method using ferrite magnetic material |
KR100803667B1 (en) * | 2006-06-13 | 2008-02-19 | 신국식 | Apparatus and method for removing snow on vinylhouse |
JP2013221272A (en) * | 2012-04-13 | 2013-10-28 | Masahisa Sugiyama | Electromagnetic wave type snow melting method |
CN106760909A (en) * | 2016-11-25 | 2017-05-31 | 陈清 | A kind of awning for being convenient to clean tarpaulin |
CN106760909B (en) * | 2016-11-25 | 2019-06-21 | 陈清 | A kind of awning being convenient to clean tarpaulin |
CN108168197A (en) * | 2017-12-27 | 2018-06-15 | 青岛海尔股份有限公司 | Refrigerator and its defrosting control method |
CN108168197B (en) * | 2017-12-27 | 2020-04-21 | 青岛海尔股份有限公司 | Refrigerator and defrosting control method thereof |
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