JP2582739B2 - Leakage duct - Google Patents
Leakage ductInfo
- Publication number
- JP2582739B2 JP2582739B2 JP3087760A JP8776091A JP2582739B2 JP 2582739 B2 JP2582739 B2 JP 2582739B2 JP 3087760 A JP3087760 A JP 3087760A JP 8776091 A JP8776091 A JP 8776091A JP 2582739 B2 JP2582739 B2 JP 2582739B2
- Authority
- JP
- Japan
- Prior art keywords
- duct
- diameter
- air
- air leakage
- split
- 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.)
- Expired - Fee Related
Links
- 239000000835 fiber Substances 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 238000003975 animal breeding Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F2013/0608—Perforated ducts
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Greenhouses (AREA)
- Housing For Livestock And Birds (AREA)
- Duct Arrangements (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、漏風ダクトに係り、更
に詳しくは、施設園芸用ハウス，動物飼育舎，その他の
建造物での使用に好適な漏風ダクトに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air leakage duct, and more particularly, to an air leakage duct suitable for use in a greenhouse, an animal breeding house, and other buildings.
【０００２】[0002]
【従来の技術】従来より、施設園芸用ハウス，動物飼育
舎，その他の建造物の温度管理は、主として天窓・側窓
の開閉操作、並びに換気扇の作動による強制換気が行わ
れて来た。しかし、前記方法による温度管理は効果的と
は言えない面も有り、送風ファン（温風暖房機，冷房機
等）とダクトとの組合せによるダクト・ファンシステム
による強制送風の温度管理が一般的に普及しつつある。2. Description of the Related Art Conventionally, for temperature management of greenhouses, animal breeding houses, and other buildings, greenhouses and side windows are mainly opened and closed, and forced ventilation is performed by operating a ventilation fan. However, there is a point that the temperature control by the above method is not effective, and the temperature control of the forced blast by a duct / fan system using a combination of a blast fan (a hot air heater, a cooling device, etc.) and a duct is generally performed. Spreading.
【０００３】ダクト・ファンシステムには、鉄管，塩化
ビニール製パイプ、又は、金属板加工を施したダクトを
用いた重装備のものも存在するが、設備費が増大するこ
とや、太陽光線の採光が悪いこと等から、施設園芸用ハ
ウス，動物飼育舎用としては、軟質プラスチック（ポリ
エチレン，塩化ビニール等）製チューブに穿孔加工を施
した漏風ダクトによるダクト・ファンシステムが広く使
用されるに至った。[0003] Some duct / fan systems are heavy equipment using iron pipes, vinyl chloride pipes, or ducts processed with metal plates. However, equipment costs are increased, and sunlight is collected. Due to its poor quality, duct / fan systems with air leak ducts made from perforated soft plastic (polyethylene, vinyl chloride, etc.) tubes have become widely used for greenhouses and animal breeding houses. .
【０００４】しかし、軟質プラスチック製チューブに穿
孔加工を施した漏風ダクト（通称：穴開けポリダクト）
は、その穿孔部より局所的に植物体にかなりの線速度で
温風が当たる為、その温風が当たった部分の植物体表面
だけが乾燥し、葉面の気孔が閉じてしまう結果、部分的
に痛んで商品価値が低下してしまったり、例えば加温ハ
ウスミカンの場合に穿孔部近辺の果実に奇形が発生する
という弊害が発生し問題になっている。[0004] However, a leaky duct made by perforating a soft plastic tube (commonly called a perforated polyduct)
Is because the hot air hits the plant at a considerable linear velocity locally from the perforated part, so that only the surface of the plant exposed to the hot air dries and the pores on the leaf surface close, This has caused problems, such as a painful reduction in commercial value, and a problem in that, for example, in the case of heated house oranges, malformation occurs in fruits near the perforated portion.
【０００５】又、施設園芸用ハウス，或いは動物飼育舎
内の上下方向の温度分布斑、或いは、送風ファンの近傍
と遠方との温度分布ムラと言う問題点は完全には解消さ
れるに至っていない。[0005] Further, the problem of uneven temperature distribution in the vertical direction in a house for horticulture or animal breeding house, or uneven temperature distribution in the vicinity of and far from the blower fan has not been completely solved. .
【０００６】又、利用者が軟質プラスチック製チューブ
に穿孔加工を施して漏風ダクトとして使用するにして
も、穿孔加工自体の労力や、ハウス内の温度分布ムラを
発生させない様、タクトの孔径（孔面積）を変えたり、
孔間隔を変えたりする事によりダクト長さ方向に勾配を
設る穿孔加工が困難であったり、面倒であると言った問
題点も存在している。[0006] Even if a user perforates a soft plastic tube and uses it as an air leakage duct, the hole diameter of the tact (hole) does not increase the labor of the perforation itself or the temperature distribution unevenness in the house. Area),
There is also a problem that it is difficult to perform a perforation process in which a gradient is provided in the length direction of the duct by changing the hole interval, and it is troublesome.
【０００７】上述の様な理由により、最近、割繊維不織
布（ポリビニルアルコールフィルムを熱延伸した後、多
数の細かい割れ目を入れた後、熱処理し、拡幅し巻き取
ったものを経緯に複数枚接着したもの）の目を詰めたも
のをダクト形状に加工したもの〔鐘紡（株）製：商品名
「カネボウダクト」，品番；ＤＮ−４２０、他〕が広く
使用されつつある。For the above-mentioned reasons, recently, a plurality of split-fiber nonwoven fabrics (polyvinyl alcohol film is hot-stretched, a number of fine cracks are formed therein, then heat-treated, widened and wound, and then a plurality of pieces are adhered to the background. (Kanebo Duct, product number: DN-420, etc.) manufactured by Kanebo Co., Ltd. are being widely used.
【０００８】上記ダクトは、ダクト全面に微細な無数の
スリット（小孔）を有し、当然の事ながら穴開け加工の
労力を必要とせず、温風暖房機、又は冷房機よりの風を
上記ダクト内に吹き込んで均一な微（温・冷）風をソフ
トに放出するように工夫されたもので、その素材がポリ
ビニルアルコールである事により耐候性に優れ、フィル
ムを熱延伸してある事より機械的強度にも優れている。The above-mentioned duct has a myriad of fine slits (small holes) on the entire surface of the duct, and naturally does not require labor for drilling, and draws wind from a hot air heater or a cooler. It is devised so that it blows into the duct and uniformly emits a fine (warm / cold) wind softly. Since the material is polyvinyl alcohol, it has excellent weather resistance and the film is drawn by heat. Excellent mechanical strength.
【０００９】上記割繊維不織布による漏風ダクトの使用
は、動植物体表面にソフトな微風が均一にそして温度分
布ムラ無くそよ風の如く当たると言う事より、植物にと
っては気孔を開かせる事による炭酸同化作用の促進し
（特に、葉面下方より微風を当てた場合は普段開いてい
ない気孔を開かせるといった効果もある）、動物にとっ
ては発汗作用の促進による新陳代謝の活性化等、動植物
の成育生理に非常に効果的で有る事が判明して来てい
る。The use of the air leak duct made of the split-fiber non-woven fabric described above is based on the fact that soft breeze hits the surface of animals and plants uniformly and without unevenness in temperature distribution as a breeze. (Especially when exposed to light breeze from below the leaf surface, it also has the effect of opening pores that are not normally open). For animals, the promotion of perspiration promotes metabolism and is very important in the growth physiology of animals and plants. Has proven to be effective.
【００１０】しかし、上記割繊維不織布による漏風ダク
トは、送風ファンの能力（容量）と同一の風量をダクト
表面から均一に放出すると言う構成を取っている為、場
合によっては、ダクト内部の風速と静圧（内圧）とのア
ンバランスにより、金属又は軟質プラスチック製のダク
ト、或いは、送風ファン等の吹き出し口との接続部から
４〜５ｍの間や割繊維不織布製のダクトの曲がり部分
で、ばたつき・ハタメキが発生する事が有る（口径差が
大きい場合程発生し易い）。However, since the air leakage duct made of the split-fiber nonwoven fabric is configured to uniformly discharge the same amount of air from the duct surface as the capacity (capacity) of the blower fan, depending on the case, the wind speed inside the duct may be reduced. Due to the imbalance with the static pressure (internal pressure), fluttering occurs in a duct made of metal or soft plastic, between 4 to 5 m from the connection with the outlet of a blower fan, etc., or in the bent part of the duct made of split fiber non-woven fabric.・ Population may occur (the larger the difference in diameter, the more likely it is).
【００１１】この様な現象が発生した後、適切な処置を
施さないでこのばたつき・ハタメキを放置しておくこと
によってダクトが痛んで来たり、最終的には破損に至る
ケースが生じて問題になって来ている。[0011] After such a phenomenon occurs, the duct may be damaged by leaving the fluttering and the hammering without taking appropriate measures, and the duct may eventually be damaged, resulting in a problem. It is becoming.
【００１２】[0012]
【発明が解決しようとする課題】本発明者らは、既存の
漏風ダクトの有する前記諸欠点に鑑み鋭意研究を続けた
結果、本発明を完成したものであって、その目的とする
ところは、親ダクト，送風ファンとの接続部、或いはダ
クトの曲がり部分等でのばたつき・ハタメキがおこらな
い漏風ダクトを提供するにある。DISCLOSURE OF THE INVENTION The present inventors have made intensive studies in view of the above-mentioned drawbacks of the existing air leakage duct, and as a result, have completed the present invention. It is an object of the present invention to provide an air leakage duct that does not flutter or rattle at a connection portion with a main duct, a blower fan, or a bent portion of the duct.
【００１３】[0013]
【課題を解決するための手段】上述の目的は、少なくと
も一部を割繊維不織布よりなる通気性シートで形成した
中空筒状ダクト内部の所定区間に、復元時の口径が該ダ
クト口径と同じか又はそれよりも大きい口径を有する伸
縮自在の螺旋状物を挿嵌し、該ダクトを内側から展張支
持してなる漏風ダクトによって達成される。なお、ここ
で言う「所定区間」とは、金属又は軟質プラスチック製
のダクト或いは送風ファン等の吹き出し口と漏風ダクト
との接続部および接続部から４〜５ｍの間、または漏風
ダクトの曲がり角部分，分岐部分であり、すなわち、送
風時にばたつき・ハタメキ等のフラッター現象が発生す
る区間をいう。SUMMARY OF THE INVENTION The object of the present invention is to determine whether the diameter at the time of restoration is equal to the diameter of a duct in a predetermined section inside a hollow cylindrical duct formed at least in part by a breathable sheet made of split-fiber nonwoven fabric. Alternatively, this is achieved by a leaky duct in which a telescopic spiral having a larger diameter is inserted and the duct is extended and supported from the inside. Here, the “predetermined section” refers to a connection part between the outlet of the metal or soft plastic duct or the blower fan and the air leakage duct and between 4 and 5 m from the connection part, or a bent portion of the air leakage duct, It is a branch portion, that is, a section where flutter phenomena such as fluttering and popping occur at the time of blowing.
【００１４】本発明に用いられる割繊維不織布よりなる
通気性シートとは、ポリビニルアルコール系合成樹脂フ
ィルムを延伸した後、多数の細かい割れ目を入れ、さら
に熱処理して拡幅したものを複数枚積層したもので、無
数のスリット（小孔）を有しているため、通気性に富ん
だものとなる。The breathable sheet made of split-fiber nonwoven fabric used in the present invention is obtained by stretching a polyvinyl alcohol-based synthetic resin film, forming a large number of fine cracks, and further heat-treating the laminated sheet. In addition, since it has an infinite number of slits (small holes), it is rich in air permeability.
【００１５】本発明に用いられる螺旋状物の線材として
は、金属，プラスチック，竹などの木材が挙げられる
が、軽く、且つ得られる螺旋状物が長手方向に伸縮自在
であれば、素材を限定されるものではない。Examples of the wire of the spiral used in the present invention include metals, plastics, and woods such as bamboo. The material is limited as long as it is light and the obtained spiral can freely expand and contract in the longitudinal direction. It is not something to be done.
【００１６】またその線材の断面形状は、円形，楕円
形，多角形等が挙げられるが、ダクトに穴を開けたり傷
をつけないような形であれば何でも良い。The cross-sectional shape of the wire may be a circle, an ellipse, a polygon, or the like, but any shape may be used as long as it does not make a hole or damage the duct.
【００１７】螺旋状物の巻き数は特に限定されないが、
１〜２回転程度ではダクト内にうまく固定できないので
３〜５回転程度は必要である。又、螺旋状物の両端は、
ダクト本体を傷つけない様に、先端を内部に向けて曲げ
ておくのが好ましい。Although the number of turns of the spiral is not particularly limited,
About 1 to 2 rotations are not enough to fix in the duct, so about 3 to 5 rotations are necessary. Also, both ends of the spiral object,
It is preferable to bend the tip inward so as not to damage the duct body.
【００１８】螺旋状物は、復元時の口径がダクト径と同
じか又はそれよりも大きいものを使用する。As the helical material, one having a diameter at the time of restoration equal to or larger than the diameter of the duct is used.
【００１９】従って、特別の固定作業は必要ないが、送
風ファンや加温機の吹き出し口のフランジ或いは金属製
のチューブに、ボルトとナット等の固定具を用いて取り
付けても良い。Therefore, although no special fixing work is required, the fixing means such as bolts and nuts may be used to fix the blower or the flange of the outlet of the heater or a metal tube.
【００２０】[0020]
【作用】本発明は、挿嵌された螺旋状物がその復元力に
基づいて自身の形状を拡大し、ダクトを内部から展張支
持する為、ダクトが常時緊張状態に保たれ、その結果、
ダクトのバタつき・ハタメキが防止され、漏風ダクトの
破損が起こりにくくなるというものである。According to the present invention, the inserted spiral object expands its shape based on its restoring force and expands and supports the duct from the inside, so that the duct is always kept in a tensioned state.
Duct flapping and scuffing are prevented, and breakage of the air leakage duct is less likely to occur.
【００２１】次に、実施例及び比較例に基づいて、本発
明を更に詳細に説明する。Next, the present invention will be described in more detail based on examples and comparative examples.
【００２２】[0022]
【実施例】比較例１ 折径４５ｃｍのカネボウダクトＤＮ−４２０（鐘紡
（株）製；ポリビニルアルコールフィルムを熱延伸した
後、多数の細かい割れ目を入れて熱処理し、拡幅して巻
き取ったものを、経緯に複数枚接着した割繊維不織布使
用）と、同径のポリエチレン製のダクト（以下、ポリダ
クトと略記する。）を接続したものを１０本用意し、ポ
リダクト側の末端を、各々、ネポン（株）製ＨＫ−５１
０ＴＣ加温機の吹き出し口に取りつけた。Comparative Example 1 Kanebo Duct DN-420 (manufactured by Kanebo Co., Ltd.) having a folded diameter of 45 cm; after thermally stretching a polyvinyl alcohol film, heat-treating it with a number of fine cracks; , 10 pieces of connected polyethylene ducts (hereinafter abbreviated as polyducts) of the same diameter are prepared, and the ends on the polyduct side are each nepon ( HK-51
It was attached to the outlet of a 0TC heater.
【００２３】ダクト１本当たりの風量約２０ｍ3 ／ｍｉ
ｎ（ａｔ２０℃）で送風を行ったところ、カネボウダク
トがポリエチレンダクトとの接続部位から４〜７ｍに亘
ってバタつき、４ケ月間連続使用後にはカネボウダクト
の緯ウェッブが剥がれる等の破損が起こっていた。About 20 m 3 / mi air flow per duct
When the air was blown at n (at 20 ° C), the Kanebo duct fluttered for 4-7m from the connection with the polyethylene duct, and after 4 months of continuous use, the Kanebo duct's weft web was peeled off and other damage occurred. I was
【００２４】実施例１ 直径４ｍｍのアルミニウム製針金を２〜３巻きして、折
径が４５ｃｍよりも大きめの螺旋状物をつくった。これ
を、図１に示す様に、比較例１のダクトの、ポリダクト
とカネボウダクトの接続部位に内挿固定して実施例１の
ダクトを作成した。比較例１と同様に使用したところ、
バタつきがかなりおさえられ、４ケ月間連続使用して
も、ダクトの破損がおこらなかった。Example 1 A spiral wire having a folded diameter larger than 45 cm was formed by winding a few turns of an aluminum wire having a diameter of 4 mm. As shown in FIG. 1, this was inserted and fixed in the connecting portion between the polyduct and the Kanebo duct of the duct of Comparative Example 1 to prepare the duct of Example 1. When used in the same manner as in Comparative Example 1,
The flutter was considerably suppressed, and the duct was not damaged even after continuous use for 4 months.
【００２５】[0025]
【発明の効果】上述した様に、本発明のダクトは、フラ
ッター現象による破損が全く見られず、寿命の長いもの
である。As described above, the duct of the present invention has a long life without any breakage due to the flutter phenomenon.
【図１】実施例１の漏風ダクトを示す図である。FIG. 1 is a diagram showing a leak air duct according to a first embodiment.
１ 割繊維不織布製ダクト ２ ポリエチレン製ダクト ３ 螺旋状物 1 Split Fiber Nonwoven Fabric Duct 2 Polyethylene Duct 3 Spiral
Claims (1)
通気性シートで形成した中空筒状ダクト内部の所定区間
に、復元時の口径が該ダクト口径と同じか又はそれよりも大
きい口径を有する伸縮自在の 螺旋状物を挿嵌し、 該ダクトを内側から展張支持してなる漏風ダクト。1. A predetermined section inside a hollow tubular duct formed at least in part from a breathable sheet made of a split-fiber nonwoven fabric , wherein the diameter at the time of restoration is equal to or smaller than the diameter of the duct. Greater than that
An air leakage duct in which a stretchable spiral having a large diameter is inserted and the duct is extended and supported from the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3087760A JP2582739B2 (en) | 1991-03-26 | 1991-03-26 | Leakage duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3087760A JP2582739B2 (en) | 1991-03-26 | 1991-03-26 | Leakage duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04297747A JPH04297747A (en) | 1992-10-21 |
| JP2582739B2 true JP2582739B2 (en) | 1997-02-19 |
Family
ID=13923906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3087760A Expired - Fee Related JP2582739B2 (en) | 1991-03-26 | 1991-03-26 | Leakage duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2582739B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111836A (en) * | 1983-11-21 | 1985-06-18 | Hibiya Sogo Setsubi Kk | Ventilation effected through air leaking duct |
| JPH0281342U (en) * | 1988-12-07 | 1990-06-22 |
-
1991
- 1991-03-26 JP JP3087760A patent/JP2582739B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04297747A (en) | 1992-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |