JP2009162416A - Heat exchange type air pipe - Google Patents

Heat exchange type air pipe Download PDF

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JP2009162416A
JP2009162416A JP2007341535A JP2007341535A JP2009162416A JP 2009162416 A JP2009162416 A JP 2009162416A JP 2007341535 A JP2007341535 A JP 2007341535A JP 2007341535 A JP2007341535 A JP 2007341535A JP 2009162416 A JP2009162416 A JP 2009162416A
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wind
wind pipe
heat exchange
exchange type
frame portion
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Minoru Nishiwaki
実 西脇
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NAT MARINE PLASTIC KK
NATIONAL MARINE PLASTIC KK
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NAT MARINE PLASTIC KK
NATIONAL MARINE PLASTIC KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an air pipe controlling an air temperature in the air pipe by being constituted to exchange heat with the air in the air pipe. <P>SOLUTION: This heat exchange type air pipe has: an air pipe main body foldable by using a flexible material and formed into the hollow shape; and a fluid flow channel fixed to an inner periphery of the air pipe main body for circulating the fluid inside, so that the heat is exchanged between a gas passing through the inside of the air pipe main body and the fluid, and the air pipe keeps the hollow shape. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ガス、粉塵などの有害物質で汚染されたトンネル内等で換気用の空気を導入するための風管に関し、特に換気用の空気を特定の温度に維持することができるように熱交換を可能にする熱交換型風管に関する。   The present invention relates to a wind pipe for introducing air for ventilation in a tunnel or the like contaminated with harmful substances such as gas and dust, and in particular, heat so that the air for ventilation can be maintained at a specific temperature. The present invention relates to a heat exchange type wind tube that enables exchange.

従来、トンネル工事等ではガス、粉塵などの有害物質で汚染されているためトンネル内の作業環境を良好に維持するために換気システムが重要である。   Conventionally, in tunnel construction and the like, since it is contaminated with harmful substances such as gas and dust, a ventilation system is important to maintain a good working environment in the tunnel.

たとえば、特許文献１では、風管ガイド６０は、先端６２が移動送風管としてのサクションホース６４の後端６６と接続可能な先端レジューサ６８と、後端６６が固定送風管としての送風用鋼管７２の先端６２に接続可能な後端ジョイント管７６と、先端レジューサ６８に最内筒８０が接続され後端ジョイント管７６に最外筒８２が接続される多重筒体８４と、先端６２が先端レジューサ６８に連通し、後端６６が後端ジョイント管７６に連通するように多重筒体８４内全体にわたり、伸縮自在に収容されたジョイント管７６とから構成されている。このように構成することで、トンネル内にコンパクトに設置でき、トンネルの進行に合わせて効率よく延長できる提案がなされている。   For example, in Patent Document 1, the wind tube guide 60 includes a tip reducer 68 whose front end 62 can be connected to a rear end 66 of a suction hose 64 serving as a moving blower tube, and a blower steel pipe 72 whose rear end 66 serves as a fixed blower tube. A rear end joint pipe 76 connectable to the front end 62, a multiple cylinder 84 in which the innermost cylinder 80 is connected to the front end reducer 68 and the outermost cylinder 82 is connected to the rear end joint pipe 76, and the front end 62 is the front end reducer. 68, and the rear end 66 communicates with the rear end joint pipe 76, and is configured by a joint pipe 76 that is accommodated so as to extend and contract over the entire inside of the multiple cylinder 84. By configuring in this way, it has been proposed that it can be compactly installed in the tunnel and can be efficiently extended as the tunnel progresses.

一方、特許文献２は、上流側の風管本体８６の接続端部の内側には、漏風防止筒８８が縫着、接着、溶着などにより取り付けられている。該漏風防止筒８８は上記風管本体８６と同様の可撓性（気密性は絶対条件ではない）を有する膜材料により構成されている。また、該漏風防止筒８８は、風管本体８６の接続端部から外方に延出していて、その先端には、環状縁９０が形成されている。該環状縁９０は、適宜天然繊維または合成繊維を束ねた紐９２、あるいはこれらの繊維から成る糸を編んだ紐９４、または発泡樹脂製の紐状のものを芯材として、これを漏風防止筒８８の端縁膜材料により包み込んで構成されている。このように構成されることで、漏風防止筒の先端に柔軟性を有する環状縁を形成したので、漏風を完全に防止することができると共に送風抵抗の増加を防ぎ、さらに、コンパクトに折り畳んで持ち運びや収納に好都合となる提案がなされている。   On the other hand, in Patent Document 2, an air leakage prevention cylinder 88 is attached to the inside of the connection end portion of the upstream wind pipe body 86 by sewing, adhesion, welding, or the like. The air leakage prevention cylinder 88 is made of a film material having the same flexibility (airtightness is not an absolute requirement) as the wind pipe body 86. The air leakage prevention cylinder 88 extends outward from the connection end of the wind tube main body 86, and an annular edge 90 is formed at the tip thereof. The annular edge 90 is a string 92 in which natural fibers or synthetic fibers are appropriately bundled, a string 94 knitted from these fibers, or a foamed resin string as a core material, and this is used as an air leakage prevention cylinder. It is composed of 88 edge film materials. By being configured in this way, a flexible annular edge is formed at the tip of the air leakage prevention cylinder, so that it is possible to completely prevent air leakage and to prevent an increase in blowing resistance, and to be folded and carried compactly. There are proposals that make it convenient for storage.

特開平１０−１８７９８号公報Japanese Patent Laid-Open No. 10-18798 特開２０００−６５４１６号公報JP 2000-65416 A

ところが、トンネル工事等では、特に日本国は火山帯であるためもあって、地熱によるトンネル内温度の上昇が無視できない現場も少なくない。このため、トンネルクーラーを使用して冷却された空気を作業場まで送風する必要性があることも多い。このような場所において、トンネル長が長くなればなるほど風管で送風する距離は増大し、その結果風管内の空気の温度がトンネル内の気温に影響されることとなる。この場合に、従来の風管では気温の影響を防ぐ対策はなされていなかった。   However, in tunnel construction, etc., especially because Japan is a volcanic zone, there are many sites where the rise in temperature in the tunnel due to geothermal heat cannot be ignored. For this reason, it is often necessary to blow air cooled to the work place using a tunnel cooler. In such a place, the longer the tunnel length is, the longer the distance to be blown by the wind pipe, and as a result, the temperature of the air in the wind pipe is affected by the temperature in the tunnel. In this case, the conventional wind pipe has not taken measures to prevent the influence of the temperature.

そこで、本発明の目的は、風管内の空気と熱交換可能な構成とすることで、風管内の気温を制御可能な風管を提供することにある。   Then, the objective of this invention is providing the wind tube which can control the air temperature in a wind pipe by setting it as the structure which can be heat-exchanged with the air in a wind pipe.

前記の目的を達成するために、熱交換型風管は、可撓性を有する生地により折り曲げ自在で中空形状に形成される風管本体と、該風管本体の内周に固着されて内部に流体を貫通させる流体流路とを有することで、前記風管本体内部を通過する気体と前記流体との間で熱交換が可能であるとともに中空形状を維持するよう構成される。   In order to achieve the above-mentioned object, the heat exchange type wind pipe is structured such that a wind pipe body that is foldable by a flexible cloth and is formed in a hollow shape, and is fixed to an inner periphery of the wind pipe body. By having a fluid flow path through which the fluid passes, heat exchange is possible between the gas passing through the inside of the wind pipe body and the fluid, and a hollow shape is maintained.

本発明に係る熱交換型風管により、風管内の空気と熱交換可能な構成とすることで、風管内の気温を制御することができる。   With the heat exchange type wind pipe according to the present invention, the air temperature in the wind pipe can be controlled by adopting a configuration that allows heat exchange with the air in the wind pipe.

以下に、この発明の実施形態例を、図面を用いて説明する。図１は本発明に係る熱交換型風管２の側面図である。可撓性を有する生地により折り曲げ自在で中空形状に形成される風管本体４と、該風管本体４の内周に固着されて内部に流体を貫通させる流体流路６と、該風管本体４に設けられる貫通口１０，１２と、隣接する風管本体４と結合するために風管本体４の端部に設けられる線ファスナ用のエレメント１４，１６とが設けられる。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a heat exchange type wind tube 2 according to the present invention. A wind pipe body 4 that is foldable by a flexible fabric and is formed in a hollow shape, a fluid channel 6 that is fixed to the inner periphery of the wind pipe body 4 and allows fluid to pass through, and the wind pipe body 4 and through-holes 10 and 12 and elements 14 and 16 for line fasteners provided at end portions of the wind tube main body 4 for coupling with the adjacent wind tube main body 4 are provided.

風管本体４は、可撓性および気密性を有する膜材料、例えば、合成樹脂を含浸あるいは被覆した布などを筒状に形成して作成される。膜材料としては、ＰＶＣ（ｐｏｌｙｖｉｎｙｌ ｃｈｌｏｒｉｄｅ：ピーブイシー）、ＥＶＡ（ｅｔｈｙｌｅｎｅ ｖｉｎｙｌ ａｃｅｔａｔｅ ｃｏｐｏｌｙｍｅｒ：イーブイエー），ウレタン，ＰＰ（ｐｏｌｙｐｒｏｐｙｌｅｎｅ：ピーピー），ＰＥ（Ｐｏｌｙｅｔｈｙｌｅｎｅ：ピーイー）などが適している。また膜材量に防炎加工や撥水処理さらには帯電電化密度を規定値より低くするとともに抵抗値を下げる静電気帯電防止機能を備えてもよい。気密性を高めるために熱溶着加工を行うことが望ましい。さらに必要に応じて、トンネル内部で支持するための吊り手段を設けてもよい。風管本体４の両端部には線ファスナ用のエレメントが外周に沿って縫着される。   The wind pipe body 4 is formed by forming a flexible and airtight film material, for example, a cloth impregnated or covered with a synthetic resin into a cylindrical shape. As the film material, PVC (polyvinyl chloride), EVA (ethyl vinyl acetate copolymer), urethane, PP (polypropylene), PE (Polyethylene), and the like are suitable. Further, the film material amount may be provided with a flameproofing process, a water repellent process, and an electrostatic charge preventing function that lowers the electrification density from a specified value and lowers the resistance value. It is desirable to perform heat welding in order to improve hermeticity. Furthermore, you may provide the suspension means for supporting inside a tunnel as needed. At both ends of the wind pipe body 4, elements for line fasteners are sewn along the outer periphery.

流体流路６は、ゴム・ビニール・プラスチック・布・金属などで作られた、液体や気体などの流体を送るための中空の管である。熱伝導性が高く熱交換が容易な柔らかい素材でできており、随時任意に曲げて利用する用途に適する構成となる。管形状は蛇腹形状とすることもできる。流体流路６の両端には隣接する風管本体４に備わる流体流路６と連結するための中間継手８が結合される。但し、短時間しか結合しない場合や連結距離が短い場合にはニップルで連結することもできる。図２に示すように、流体流路６は、風管本体４の端部に開口された貫通口１０から風管本体４の内部に挿入されて風管本体４の内周に螺旋状に固着される。このホースの風管本体４の内周に固着することで、湾曲させた場合でも、風管が常に一定の口径を保持できることとなる。   The fluid flow path 6 is a hollow tube made of rubber, vinyl, plastic, cloth, metal, or the like for sending fluid such as liquid or gas. It is made of a soft material having high thermal conductivity and easy heat exchange, and is suitable for applications that are arbitrarily bent at any time. The tube shape may be a bellows shape. Intermediate joints 8 are connected to both ends of the fluid flow path 6 to connect to the fluid flow path 6 provided in the adjacent wind pipe body 4. However, when they are connected only for a short time or when the connecting distance is short, they can be connected by a nipple. As shown in FIG. 2, the fluid flow path 6 is inserted into the interior of the wind tube body 4 through the through-hole 10 opened at the end of the wind tube body 4 and is fixed to the inner periphery of the wind tube body 4 in a spiral shape. Is done. By fixing the hose to the inner periphery of the wind pipe body 4, the wind pipe can always maintain a constant diameter even when it is bent.

風管本体４を接続させる方法は、３種類提案されており、図３及び図４に示されている。図３（ａ）、（ｂ）に示される線ファスナであり、さらに漏風防止膜１７を設けたジョイント方式について説明する。線ファスナのエレメント１８は、風管本体４の一方の開口端部に開口に沿って縫着される。一方、他方のエレメント１９は、他方の開口端部から漏風防止膜１７だけ距離が離れた位置に縫着される。エレメント１８とエレメント１９とが係合して風管本体４が連結して漏風防止膜１７のある側から空気が送風されると、漏風防止膜１７が風管本体４の内周に押圧されて密着するので、風管本体４の内部の端幕が振動するフラッタリングを防止することとなる。   Three methods for connecting the wind pipe body 4 have been proposed and are shown in FIGS. A joint method that is a line fastener shown in FIGS. 3A and 3B and further provided with an air leakage prevention film 17 will be described. The element 18 of the line fastener is sewn along the opening at one opening end of the wind pipe body 4. On the other hand, the other element 19 is sewn at a position away from the other opening end by the air leakage prevention film 17. When the element 18 and the element 19 are engaged to connect the wind tube body 4 and air is blown from the side where the air leakage prevention film 17 is present, the air leakage prevention film 17 is pressed against the inner periphery of the wind tube body 4. Since they are in close contact with each other, fluttering in which the end curtain inside the wind tube body 4 vibrates is prevented.

一方、図３（ｃ）、（ｄ）に示されるカップリング方式について説明する。   On the other hand, the coupling method shown in FIGS. 3C and 3D will be described.

風管本体４は、その一方の端部に端部形状の形成されるカップリング用大枠部２１と、他方の端部に前記カップリング用大枠部２１より小型に形成されるカップリング用小枠部２２と、前記カップリング用大枠部とカップリング用小枠部２２とを締付け固定するカップリング固定部２４とを備えられる。流体流路６は、中間継手８で連結される。前記カップリング用大枠部２１の内部と、カップリング固定部２４の内部とにカップリング用小枠部２２を挿入してカップリング用小枠部２２がカップリング用大枠部２１に係止して固定され、さらにその固定した部分に外周からカップリング固定部２４が締め付け固定することで隣接する風管本体同士を連結する。流体流路６は、中間継手８で連結される。   The wind pipe body 4 has a coupling large frame portion 21 having an end shape formed at one end thereof, and a coupling small frame formed at a smaller end than the coupling large frame portion 21 at the other end portion. And a coupling fixing portion 24 that fastens and fixes the coupling large frame portion and the coupling small frame portion 22 to each other. The fluid flow paths 6 are connected by an intermediate joint 8. The coupling small frame portion 22 is inserted into the coupling large frame portion 21 and the coupling fixing portion 24 so that the coupling small frame portion 22 is engaged with the coupling large frame portion 21. Adjacent wind pipe bodies are connected to each other by the coupling fixing portion 24 being fastened and fixed to the fixed portion from the outer periphery. The fluid flow paths 6 are connected by an intermediate joint 8.

風管本体４を接続させる第３の方法は、図４に示されるように風管本体４はその両方の端部に端部形状の形成される可撓性のジョイント用枠部２８，３０とを備えて、風下側のジョイント用枠部２８の内側に風上側のジョイント端部３０を貫通させることにより風下側風管本体４内に風上側風管本体端部を挿入させて、風下側ジョイント用枠部２８によって風上側ジョイント用枠部３０が係止されて、隣接する風管本体同士を連結する。   As shown in FIG. 4, the third method for connecting the wind pipe body 4 is that the wind pipe body 4 has flexible joint frame portions 28 and 30 formed with end shapes at both ends thereof. The windward side wind pipe body end is inserted into the windward side windpipe main body 4 by passing the windward side joint end 30 through the inside of the leeward side joint frame portion 28, and the windward side joint The windward joint frame portion 30 is locked by the frame portion 28 to connect the adjacent wind pipe main bodies.

以上のように連結することで、トンネル工事等において熱交換型風管２を導入することができる。   By connecting as described above, the heat exchange type wind tube 2 can be introduced in tunnel construction or the like.

シールドトンネル工事においては、地上部から発進立坑等を経由して敷設された換気設備によって送風を行い、坑内の換気を行っている。図５は、本発明に係る熱交換型風管を用いた小口径シールドトンネルの施工状況を示した縦断設備配置図である。切羽３２に面したシールド掘削機３４の後方にはシールド掘削機３４の運転設備を搭載した複数台の後続台車３６が配置されている。これらの後続台車３６は、シールド掘削機３４により牽引され、切羽３２の進行に伴って僅かずつ前進できるようになっている。このとき、掘削土砂を搬出する鋼製台車（図示せず）がトンネル内を支障なく通過できるように、後続台車３６は走行レールがトンネル側壁に沿って敷設され、その車両幅も鋼製台車とすれ違える程度に狭く設定されている。   In shield tunnel construction, air is blown from the ground through ventilation facilities laid via a start-up shaft and the like to ventilate the mine. FIG. 5 is a longitudinal installation layout diagram showing a construction situation of a small-diameter shield tunnel using the heat exchange type wind pipe according to the present invention. Behind the shield excavator 34 facing the face 32, a plurality of succeeding carriages 36 equipped with operating equipment for the shield excavator 34 are arranged. These subsequent carriages 36 are pulled by the shield excavator 34 so that they can move forward little by little as the face 32 advances. At this time, the trailing carriage 36 is laid along the side wall of the tunnel so that a steel carriage (not shown) carrying the excavated earth and sand can pass through the tunnel without any trouble, and the vehicle width is also the same as that of the steel carriage. It is set narrow enough to pass each other.

一方、発進立坑４０の地上坑口近傍には送風機４２が設置されている。この送風機４２には固定された送風管として送風用鋼管４４が接続されている。この送風用鋼管４４は、発進立坑４０の側壁に沿ってトンネル坑口まで導かれる。   On the other hand, a blower 42 is installed in the vicinity of the ground pit of the start shaft 40. A blower steel pipe 44 is connected to the blower 42 as a fixed blower pipe. The blower steel pipe 44 is guided along the side wall of the start shaft 40 to the tunnel wellhead.

さらに、地上にある水道蛇口４６にホース４８が接続されて発進立坑に沿って地下までホース４８が延伸され、直近の風管本体４の連結するための流体流路６の中間継手８に接続される。なお、ホース４８は、風管本体４の端部で折り返して、再び水道蛇口まで配管されて排水または、冷却後に再利用がなされる。なお、本実施例では冷媒として水道水について説明したが、他の液体を用いてもよい。   Further, a hose 48 is connected to a water faucet 46 on the ground, and the hose 48 extends to the basement along the start shaft and is connected to the intermediate joint 8 of the fluid flow path 6 for connecting the nearest wind pipe body 4. The The hose 48 is folded back at the end of the wind pipe body 4 and is again piped to the water tap and drained or reused after cooling. In addition, although the tap water was demonstrated as a refrigerant | coolant in the present Example, you may use another liquid.

一方、送風用鋼管４４は冷却器５０に接続されこの冷却器５０が風管本体４に接続され冷却された気体が送風される。なお冷却器５０の冷却用の冷媒を風管本体４の冷媒と共有することもできる。   On the other hand, the blower steel pipe 44 is connected to a cooler 50, and the cooler 50 is connected to the wind pipe body 4 so that the cooled gas is blown. Note that the cooling refrigerant of the cooler 50 can be shared with the refrigerant of the wind tube body 4.

ここで、本発明に係る熱交換型風管を適用することで冷却器５０によって冷却された空気が、坑道内の外気に影響されることなく流体流路６を通過する水温程度に維持されることとなる。   Here, by applying the heat exchange type wind pipe according to the present invention, the air cooled by the cooler 50 is maintained at about the water temperature passing through the fluid flow path 6 without being influenced by the outside air in the tunnel. It will be.

本発明に係る熱交換型風管の側面図である。It is a side view of the heat exchange type | mold wind tube which concerns on this invention. 本発明に係る熱交換型風管の正面図である。It is a front view of the heat exchange type | formula wind pipe which concerns on this invention. 本発明に係る熱交換型風管のジョイント方式を示す構成図である。It is a block diagram which shows the joint system of the heat exchange type | mold wind tube which concerns on this invention. 本発明に係る熱交換型風管のジョイント方式を示す構成図である。It is a block diagram which shows the joint system of the heat exchange type | mold wind tube which concerns on this invention. 本発明に係る熱交換型風管を用いた小口径シールドトンネルの施工状況を示した縦断設備配置図である。It is the longitudinal installation layout which showed the construction condition of the small diameter shield tunnel using the heat exchange type | formula wind pipe which concerns on this invention.

符号の説明Explanation of symbols

２ 熱交換型風管
４ 風管本体
６ 流体流路
１０，１２ 貫通口
１４，１６ エレメント
１７ 漏風防止膜
１８ エレメント
１９ エレメント
２１ カップリング用大枠部
２２ カップリング用小枠部
２４ カップリング固定部
２８，３０ ジョイント用枠部
３２ 切羽
３４ シールド掘削機
３６ 後続台車
４０ 発進立坑
４２ 送風機
４４ 送風用鋼管
４６ 水道蛇口
４８ ホース
５０ 冷却器 2 Heat exchange type wind pipe 4 Wind pipe body 6 Fluid flow path 10, 12 Through port 14, 16 Element 17 Air leakage prevention film 18 Element 19 Element 21 Coupling large frame part 22 Coupling small frame part 24 Coupling fixing part 28 , 30 Joint frame portion 32 Face 34 Shield excavator 36 Subsequent carriage 40 Starting shaft 42 Blower 44 Steel pipe for blowing 46 Water faucet 48 Hose 50 Cooler

Claims (7)

可撓性を有する生地により折り曲げ自在で中空形状に形成される風管本体と、該風管本体の内周に固着されて内部に流体を貫通させる流体流路とを有することで、前記風管本体内部を通過する気体と前記流体との間で熱交換が可能であるとともに中空形状を維持するよう構成される熱交換型風管。   A wind pipe body that is foldable by a flexible cloth and is formed in a hollow shape, and a fluid channel that is fixed to the inner periphery of the wind pipe body and allows fluid to pass through the wind pipe body. A heat exchange type wind tube configured to be able to exchange heat between the gas passing through the inside of the main body and the fluid and to maintain a hollow shape. 流体流路は、前記風管本体を中空形状に保形せしめる硬度を備える請求項１記載の熱交換型風管。   The heat exchange type wind pipe according to claim 1, wherein the fluid flow path has a hardness that allows the wind pipe main body to be held in a hollow shape. 流体流路は、風管本体の両端部では風管本体の表面を貫通して外周に配置される請求項２記載の熱交換型風管。   The heat exchange type wind tube according to claim 2, wherein the fluid flow path is disposed on the outer periphery through the surface of the wind tube body at both ends of the wind tube body. 風管本体は、その一方の端部に端部形状の形成されるカップリング用大枠部と、他方の端部に前記カップリング用大枠部より小型に形成されるカップリング用小枠部と、前記カップリング用大枠部とカップリング用小枠部とを締付け固定するカップリング固定部とを備えて隣接する風管本体同士を連結する請求項３記載の熱交換型風管。   The wind pipe body has a coupling large frame portion formed in an end shape at one end thereof, and a coupling small frame portion formed smaller in size than the coupling large frame portion at the other end portion, The heat exchange type wind tube according to claim 3, further comprising a coupling fixing portion that fastens and fixes the coupling large frame portion and the coupling small frame portion to connect adjacent wind tube main bodies. 風管本体は、その両方の端部に端部形状の形成される可撓性のジョイント用枠部とを備えて、風上側のジョイント用枠部の内側に風下側のジョイント端部を貫通させることにより風上側風管本体内に風下側風管本体端部を挿入させて、風上側ジョイント用枠部によって風下側ジョイント用枠部が係止されて、隣接する風管本体同士を連結する請求項３記載の熱交換型風管。   The wind pipe main body includes flexible joint frame portions having end shapes formed at both ends thereof, and allows the leeward joint end portion to pass through the inside of the windward joint frame portion. Thus, the end part of the leeward side wind pipe body is inserted into the windward side wind pipe body, the frame part for the leeward side joint is locked by the frame part for the windward side joint, and the adjacent wind pipe bodies are connected to each other. Item 4. The heat exchange type wind tube according to Item 3. 風管本体は、その両端部にエレメントが縫着されており、一方のエレメントにスライダを設けて線ファスナによって隣接する風管本体同士を連結する請求項３記載の熱交換型風管。   4. The heat exchange type wind tube according to claim 3, wherein elements are sewn at both ends of the wind tube body, and a slider is provided on one element and the adjacent wind tube bodies are connected to each other by a wire fastener. 風管本体は、一方のエレメントと風管端部との間に漏風防止膜を設ける請求項６記載の熱交換型風管。   The heat exchange type wind pipe according to claim 6, wherein the wind pipe body is provided with a wind leakage prevention film between one element and the wind pipe end.
JP2007341535A 2007-12-29 2007-12-29 Heat exchange type air pipe Pending JP2009162416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886548A (en) * 2010-07-28 2010-11-17 淮南润成科技有限公司 Polyurethane composite material hair dryer and manufacturing method thereof
WO2016006092A1 (en) * 2014-07-11 2016-01-14 株式会社日立製作所 Compressor or gas production system
CN111734472A (en) * 2020-07-28 2020-10-02 贵州大学 Prevent dryer device of gas adverse current
JP2021124214A (en) * 2020-02-02 2021-08-30 三協エアテック株式会社 Air-conditioning duct

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886548A (en) * 2010-07-28 2010-11-17 淮南润成科技有限公司 Polyurethane composite material hair dryer and manufacturing method thereof
CN101886548B (en) * 2010-07-28 2012-05-30 淮南润成科技股份有限公司 Polyurethane composite material hair dryer and manufacturing method thereof
WO2016006092A1 (en) * 2014-07-11 2016-01-14 株式会社日立製作所 Compressor or gas production system
JPWO2016006092A1 (en) * 2014-07-11 2017-04-27 株式会社日立製作所 Compressor
JP2021124214A (en) * 2020-02-02 2021-08-30 三協エアテック株式会社 Air-conditioning duct
CN111734472A (en) * 2020-07-28 2020-10-02 贵州大学 Prevent dryer device of gas adverse current
CN111734472B (en) * 2020-07-28 2022-07-15 贵州大学 Prevent dryer device of gas adverse current

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