JP2019132047A - Snow melting roof structure of multi-story greenhouse - Google Patents

Snow melting roof structure of multi-story greenhouse Download PDF

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JP2019132047A
JP2019132047A JP2018015272A JP2018015272A JP2019132047A JP 2019132047 A JP2019132047 A JP 2019132047A JP 2018015272 A JP2018015272 A JP 2018015272A JP 2018015272 A JP2018015272 A JP 2018015272A JP 2019132047 A JP2019132047 A JP 2019132047A
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roof
snow
film
heat transfer
greenhouse
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JP6935761B2 (en
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高須 展夫
Nobuo Takasu
展夫 高須
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JFE Engineering Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

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Abstract

To equalize the shape and amount of snow blocks that slide down the roof, stabilize snow melting performance, and reduce snow melting energy.SOLUTION: In a snow-melting roof structure of a multi-story greenhouse where a roof film 34 is fastened by a film fastener 40, a heat transfer member 60 having good heat transfer performance is disposed on the roof top portion, roof end surface end portion, and roof rafter portion 30 parallel to the sliding direction. The heat transfer member 60 may be formed by thickening a film fastener 70 or by incorporating a heating element 82 in a film fastener 80.SELECTED DRAWING: Figure 7

Description

本発明は、連棟温室の融雪屋根構造に係り、特に、積雪地帯に用いるのに好適な、屋根を滑り落ちる雪塊の形状や量を均一化して、融雪性能を安定化させ、融雪エネルギーの削減を図ることが可能な連棟温室の融雪屋根構造に関する。   The present invention relates to a snowmelt roof structure of a multi-storey greenhouse, and in particular, suitable for use in a snowy area, uniformizing the shape and amount of a snow mass sliding down the roof, stabilizing the snowmelt performance, and reducing snowmelt energy. This is related to the snowmelt roof structure of a multi-storey greenhouse that can be used.

従来より、温室として種々のものが提案されているが、中でも、建設費の低減を図ることができること、及び、温室を構築する施設面積を効率的に利用できることなどから、連棟型の温室(連棟温室と称する)が良く利用されている。   Conventionally, various greenhouses have been proposed, but among them, the construction cost can be reduced and the facility area for constructing the greenhouse can be used efficiently. A multi-storey greenhouse) is often used.

この連棟温室は、図1に例示する如く、例えば切妻式の屋根に組立てられる単位温室1を棟方向に平行に並設させ、且つ、隣接する側壁の支柱2を隣接する単位温室1同士で共有させ、更に隣接する単位温室1の左右に傾斜する屋根3の軒端を前記支柱2の上端部に支持された谷樋4で連結した形に構築されたものである。   As shown in FIG. 1, for example, this continuous greenhouse has unit greenhouses 1 assembled on a gable roof, for example, arranged in parallel in the building direction, and adjacent side wall columns 2 between adjacent unit greenhouses 1. Further, the eaves end of the roof 3 inclined to the left and right of the adjacent unit greenhouse 1 is connected with a valley trough 4 supported by the upper end of the support column 2.

ところで、雪の多い積雪地帯では、温室の屋根に雪が積もり屋根の採光面積が激減し、温室の特徴である採光性を充分に生かせない。そこで、屋根を融雪する方法として、
(1)例えば特許文献1に記載されるような散水方法、
(2)例えば特許文献2に記載されるような屋根面全体の加熱方法、
(3)例えば特許文献3に記載されるような連棟樋部へ温水管などの加熱源を配置する方法、
などが提案されている。
By the way, in a snowy area with a lot of snow, snow is piled up on the roof of the greenhouse, and the daylighting area of the roof is drastically reduced, so that the daylighting characteristic of the greenhouse cannot be fully utilized. So, as a way to melt snow on the roof,
(1) A watering method as described in Patent Document 1, for example,
(2) A method for heating the entire roof surface as described in Patent Document 2, for example
(3) For example, a method of disposing a heating source such as a hot water pipe in a continuous ridge as described in Patent Document 3,
Etc. have been proposed.

特開2000−320186号公報JP 2000-320186 A 特開2000−157071号公報JP 2000-157071 A 特開平9−13742号公報JP-A-9-13742

しかしながら、(1)の散水は、北海道のような降雪時の気温が氷点下となる場合には凍結して使用できない。   However, the watering of (1) cannot be frozen and used when the temperature during snowfall is below freezing, as in Hokkaido.

又、(2)のように屋根面全体を加熱する方法は、エネルギー消費が大きい。   Further, the method of heating the entire roof surface as in (2) consumes a large amount of energy.

又、(3)のように樋部へ加熱源を配置する方法は、屋根を滑り落ちる雪の量により融雪性能が変化し、適度な大きさで雪が屋根を滑り落ちてくれないと、桶部に雪が流れ込まず、十分に融雪性能を発揮できない場合がある等の問題点を有していた。   In addition, as shown in (3), the method of disposing the heating source on the buttock changes the snow melting performance depending on the amount of snow sliding down the roof, and if the snow does not slide down the roof at an appropriate size, There was a problem that snow could not flow in and snow melting performance could not be fully exhibited.

本発明は前記従来の問題点を解決するべくなされたもので、屋根を滑り落ちる雪の量を安定化させることによって、融雪性能を効果的に発揮可能な温室屋根を提供することを課題とする。   The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a greenhouse roof capable of effectively exhibiting snow melting performance by stabilizing the amount of snow sliding down the roof.

本発明は、天窓部分においては、雪塊が過大とならず、適切な形状や量で屋根を滑り落ちることに着目してなされたものである。   In the skylight portion, the present invention has been made by paying attention to the fact that snow blocks do not become excessive, and slide down the roof with an appropriate shape and amount.

まず、図2を参照して、雪が屋根を滑るメカニズムについて説明する。   First, the mechanism by which snow slides on the roof will be described with reference to FIG.

図2(A)に示すように、温室10の屋根12に降る雪14は、屋根内側面からの入熱で一部溶けながら積もっていく。降り積もった雪14は、図2の(B)に示すように、一定の厚みに達すると重力で屋根面を滑り落ちるが、その時、雪14の付着力が大きいと滑り落ちるまでの摩擦が大きくなったり、滑り落ちる雪塊の形状が不揃いになる。   As shown in FIG. 2 (A), the snow 14 falling on the roof 12 of the greenhouse 10 accumulates while being partially melted by heat input from the inner surface of the roof. As shown in FIG. 2 (B), the accumulated snow 14 slides down the roof surface due to gravity when it reaches a certain thickness. At that time, if the snow 14 has a large adhesive force, friction until it slides down increases. The shape of the falling snow lump becomes uneven.

特に、図3(天窓の構造と垂木形状を示す断面図)、図4(屋根端部の構造を示す断面図)及び図5(天窓の厚みを示す断面図)に示すような天窓32の部分では、天窓32の大きさで雪が綺麗に分断されて適切な雪が滑り落ちていくが、一方、天窓32以外の部分では、滑り落ちる雪の形状が不揃いになる。ここで天窓32の部分で雪の大きさが制限されるのは、天窓32の枠の厚みt1が例えば35mmと厚く、その伝熱性能が良いため、ここで雪が分断されるものと考えられる。 In particular, the part of the skylight 32 as shown in FIG. 3 (cross-sectional view showing the structure of the skylight and the rafter shape), FIG. 4 (cross-sectional view showing the structure of the roof edge) and FIG. 5 (cross-sectional view showing the thickness of the skylight). Then, the snow is neatly divided by the size of the skylight 32 and appropriate snow slides down. On the other hand, in the portions other than the skylight 32, the shape of the snow falling down becomes uneven. Here the part of the snow size of the skylight 32 is limited, as thick as the thickness t 1 is for example 35mm frame skylight 32, therefore the heat transfer performance is good, it is considered that the snow is cut here .

図において、24は屋根頂上部を支える構造部材、26は屋根頂上部以外を支える構造部材、28は棟木、30は垂木、34は、垂木30や天窓32に貼られた屋根フィルムである。   In the figure, 24 is a structural member that supports the roof top, 26 is a structural member that supports other than the roof top, 28 is a purlin, 30 is a rafter, and 34 is a roof film affixed to the rafter 30 or skylight 32.

従来の屋根においては、屋根フィルム34が図6に示すような、例えば高さt2が6.7mm程度のアルミニウム製のフィルム留め金具40によって、例えば受け金具42、L字状留め金具44及びステー46を介して垂木30に留められている。図において、50、52、54はボルトである。 In the conventional roof, as shown in FIG. 6, the roof film 34 is made of, for example, an aluminum film clasp 40 having a height t 2 of about 6.7 mm, for example, a receiving clasp 42, an L-shaped clasp 44, and a stay. It is fastened to the rafter 30 via 46. In the figure, 50, 52 and 54 are bolts.

これに対して天窓32の部分では、図3、図5に示したように、その枠が厚みt1=35mm程度と厚いため、高い伝熱性能を有しており、積もった雪の層に滑り落ちる方向と平行に雪粒の結合力が弱い部分が融雪により形成され、天窓枠間の雪の層が滑らかに滑り落ちていくと考えられる。 On the other hand, in the skylight 32 portion, as shown in FIGS. 3 and 5, since the frame is as thick as about t 1 = 35 mm, it has a high heat transfer performance, and the snow layer is piled up. It is thought that a part where the bonding force of snow particles is weak parallel to the sliding-down direction is formed by melting snow, and the snow layer between the skylight frames slides down smoothly.

本発明は、このような点に着目してなされたもので、屋根フィルムがフィルム留め金具により留められている連棟温室の融雪屋根構造において、屋根最上部と、屋根妻面端部と、滑り方向と平行な屋根垂木部分に伝熱性能が良い伝熱部材を配設したことを特徴とする連棟温室の融雪屋根構造により、前記課題を解決するものである。   The present invention has been made paying attention to such points, and in a snowmelt roof structure of a multi-layer greenhouse in which a roof film is fastened by a film fastener, a roof top part, a roof end face part, a slip The above-mentioned problem is solved by a snowmelt roof structure of a multi-storey greenhouse characterized in that a heat transfer member having good heat transfer performance is disposed on a roof rafter portion parallel to the direction.

ここで、前記伝熱部材を、フィルム留め金具を厚肉としたものとすることができる。   Here, the heat transfer member may be a thick film fastener.

又、前記伝熱部材を、フィルム留め金具に発熱体を内蔵させたものとすることができる。   Further, the heat transfer member may be a film clasp in which a heating element is incorporated.

本発明によれば、伝熱性能が良い伝熱部材により、屋根を滑り落ちる雪塊の形状や量を均一化して、融雪性能を安定させ、融雪エネルギーの削減を図ることができる。   ADVANTAGE OF THE INVENTION According to this invention, the shape and quantity of the snow lump which slides down a roof can be equalize | homogenized by a heat transfer member with favorable heat transfer performance, snow melting performance can be stabilized, and reduction of snow melting energy can be aimed at.

連棟型温室の構成例を示す断面図Cross-sectional view showing an example of the structure of a continuous greenhouse 雪が屋根を滑り落ちるメカニズムを示す図Diagram showing the mechanism by which snow slides down the roof 天窓部分の屋根の構造及び垂木形状を示す断面図Sectional view showing roof structure and rafter shape of skylight part 同じく屋根端部の構造を示す断面図Cross-sectional view showing the structure of the roof edge 同じく天窓の厚みを示す断面図Sectional view showing thickness of skylight 従来のフィルム留め金具の形状の例を示す図The figure which shows the example of the shape of the conventional film fastener 本発明の実施形態における伝熱性能が良い伝熱部材の配設位置を示す斜視図The perspective view which shows the arrangement | positioning position of the heat-transfer member with favorable heat-transfer performance in embodiment of this invention 本発明に係るフィルム留め金具の第1実施形態を示す断面図Sectional drawing which shows 1st Embodiment of the film fastener which concerns on this invention 同じく第2実施形態を示す断面図Sectional drawing which similarly shows 2nd Embodiment

以下、図面を参照して、本発明の実施の形態について詳細に説明する。なお、本発明は以下の実施形態及び実施例に記載した内容により限定されるものではない。又、以下に記載した実施形態及び実施例における構成要件には、当業者が容易に想定できるもの、実質的に同一のもの、いわゆる均等の範囲のものが含まれる。更に、以下に記載した実施形態及び実施例で開示した構成要素は適宜組み合わせてもよいし、適宜選択して用いてもよい。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by the content described in the following embodiment and an Example. In addition, the constituent elements in the embodiments and examples described below include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in the so-called equivalent range. Furthermore, the constituent elements disclosed in the embodiments and examples described below may be appropriately combined or may be appropriately selected and used.

本発明は、屋根フィルム34がフィルム留め金具40により留められている連棟温室10の融雪屋根構造において、図7に示す如く、屋根最上部と、屋根妻面端部と、滑り方向と平行な屋根垂木部分に、例えばアルミニウム又はアルミニウム合金製の伝熱性能が良い伝熱部材60を配設したものである。   In the snow melting roof structure of the continuous greenhouse 10 in which the roof film 34 is fastened by the film fastener 40, the present invention is parallel to the top of the roof, the end of the roof tread surface, and the sliding direction, as shown in FIG. A heat transfer member 60 made of, for example, aluminum or aluminum alloy and having good heat transfer performance is disposed on the roof rafter portion.

本発明の第1実施形態は、伝熱部材60として、図8に示す如く、通常数mmである厚みt3を、例えば30mm以上とした熱容量増加型のフィルム留め金具70を用いて屋根フィルム34をL字状金具44を介して垂木30(図示省略)に留めるようにしたものである。 In the first embodiment of the present invention, as shown in FIG. 8, the heat transfer member 60 is a roof film 34 using a heat capacity increasing type film fastener 70 having a thickness t 3 which is usually several mm, for example, 30 mm or more. Is fastened to the rafter 30 (not shown) via an L-shaped bracket 44.

他の点については図6と同様であるので、同じ符号を付して説明を省略する。   Since the other points are the same as in FIG. 6, the same reference numerals are given and description thereof is omitted.

この第1実施形態によれば、フィルム留め金具70が、天窓32の枠と同程度の伝熱性能を持つことになるので、天窓部分と同様にフィルム留め金具70の間の雪も適切に分断され、屋根を滑り落ちていく。従って、樋部等に適切に融雪されて流れて、滑り落ちる雪の形状が均一化される。従って、樋部の融雪性能を安定させ、融雪エネルギーの削減を図ることができる。   According to the first embodiment, the film clasp 70 has the same heat transfer performance as the frame of the skylight 32. Therefore, the snow between the film clasps 70 is appropriately divided as well as the skylight portion. And slide down the roof. Therefore, the shape of the snow that slides down and flows appropriately by melting the snow in the buttocks or the like is made uniform. Therefore, it is possible to stabilize the snow melting performance of the buttocks and reduce the snow melting energy.

本実施形態においては、別体の熱源が不要であるので経済的である。   In the present embodiment, a separate heat source is unnecessary, which is economical.

次に、本発明の第2実施形態を図9を参照して説明する。   Next, a second embodiment of the present invention will be described with reference to FIG.

この第2実施形態は、厚さt4が、従来のフィルム留め金具40に近い、例えば10mm以上のフィルム留め金具80の内側にヒータ等の発熱体82を内蔵したヒータ内蔵型としたものである。 In the second embodiment, a heater built-in type in which a heating element 82 such as a heater is built inside a film clasp 80 having a thickness t 4 close to the conventional film clasp 40, for example, 10 mm or more. .

他の点については図6と同様であるので、同じ符号を付して説明を省略する。   Since the other points are the same as in FIG. 6, the same reference numerals are given and description thereof is omitted.

本実施形態によれば、フィルム留め金具80の伝熱性能に頼ることなく、ヒータ82を外部から加熱することによって、確実に滑り落ちる雪の形状を均一化することができる。   According to the present embodiment, the shape of the snow that slides down can be made uniform by heating the heater 82 from the outside without depending on the heat transfer performance of the film fastener 80.

前記実施形態においては、いずれも、フィルム留め金具を伝熱部材としていたので、構成が簡略である。なお、伝熱部材の構成は、これに限定されず、フィルム留め金具とは別の伝熱部材を設けることもできる。   In the above-described embodiments, since the film fastener is used as the heat transfer member, the configuration is simple. In addition, the structure of a heat-transfer member is not limited to this, A heat-transfer member different from a film fastener can also be provided.

10…温室
12…屋根
14…雪
24、26…構造部材
28…棟木
30…垂木
32…天窓
34…屋根フィルム
40、70、80…フィルム留め金具
60…伝熱部材
82…ヒータ(発熱体)
DESCRIPTION OF SYMBOLS 10 ... Greenhouse 12 ... Roof 14 ... Snow 24, 26 ... Structural member 28 ... Purlin 30 ... Rafter 32 ... Skylight 34 ... Roof film 40, 70, 80 ... Film fastener 60 ... Heat-transfer member 82 ... Heater (heating element)

Claims (3)

屋根フィルムがフィルム留め金具により留められている連棟温室の融雪屋根構造において、
屋根最上部と、屋根妻面端部と、滑り方向と平行な屋根垂木部分に伝熱性能が良い伝熱部材を配設したことを特徴とする連棟温室の融雪屋根構造。
In the snowmelt roof structure of a multi-storey greenhouse where the roof film is fastened by film fasteners,
A snow-melting roof structure for a multi-storey greenhouse, wherein heat transfer members having good heat transfer performance are arranged on the top of the roof, the end of the roof tread, and the roof rafters parallel to the sliding direction.
前記伝熱部材が、フィルム留め金具を厚肉としたものであることを特徴とする請求項1に記載の連棟温室の融雪屋根構造。   The snow-melting roof structure of a multi-storey greenhouse according to claim 1, wherein the heat transfer member has a thick film fastener. 前記伝熱部材が、フィルム留め金具に発熱体を内蔵させたものであることを特徴とする請求項1又は2に記載の連棟温室の融雪屋根構造。   The snow melting roof structure of a multi-storey greenhouse according to claim 1 or 2, wherein the heat transfer member is a film clasp in which a heating element is incorporated.
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JP2000139237A (en) * 1998-11-05 2000-05-23 Green System:Kk Apparatus for melting snow of multi-span greenhouse
JP2004000061A (en) * 2002-05-31 2004-01-08 Asahi Glass Green Tekku Kk Thawing duct and thawing system
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