JPS6037685B2 - Tunnel cooling method - Google Patents
Tunnel cooling methodInfo
- Publication number
- JPS6037685B2 JPS6037685B2 JP532178A JP532178A JPS6037685B2 JP S6037685 B2 JPS6037685 B2 JP S6037685B2 JP 532178 A JP532178 A JP 532178A JP 532178 A JP532178 A JP 532178A JP S6037685 B2 JPS6037685 B2 JP S6037685B2
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- pipe
- air
- heat pipe
- heat
- 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
Links
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Description
【発明の詳細な説明】
本発明は電力ケーブルが布設される洞道内を冷却する方
式の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for cooling the inside of a tunnel in which power cables are laid.
洞道内は電力ケーブルから放散される熱によって加熱さ
れており、洞道内の作業環境及び送電容量を改善するた
め洞道内は３５００〜４０ｏｏを上限としてそれ以下に
冷却することが要求される。The inside of the tunnel is heated by the heat dissipated from the power cable, and in order to improve the working environment and power transmission capacity inside the tunnel, it is required to cool the inside of the tunnel to an upper limit of 3500 to 40 oo.
このため、従来では洞道内にファンを取付けて換気冷却
することが行われているが、この方式では長い洞道では
充分な換気効果を得ることができなかった。また、洞道
内に１０ｑｏ程度の冷却水を環流する冷却管を配管して
冷却する方式が実施されているが、この方法の欠点は冷
却管は入口から出口に向けて温度が上昇する温度勾配を
有し、特に長い洞道では有効に冷却することができず、
その上ポンプ、冷凍機の如き多くの回転機が必要で保守
が面倒であったことである。本発明の目的は、長い洞道
でも有効に冷却することができ、且つ保守が容易な洞道
冷却方式を提供することにある。For this reason, in the past, a fan was installed inside the tunnel to provide ventilation and cooling, but this method did not provide sufficient ventilation in long tunnels. In addition, a method of cooling the tunnel by piping a cooling pipe that circulates around 10 qo of cooling water has been implemented, but the drawback of this method is that the cooling pipe has a temperature gradient where the temperature increases from the inlet to the outlet. In particular, long tunnels cannot be effectively cooled.
Furthermore, many rotating machines such as pumps and refrigerators were required, making maintenance difficult. An object of the present invention is to provide a tunnel cooling system that can effectively cool even long tunnels and is easy to maintain.
本発明の実施例を図面を参照して詳細に説明すると、第
１図及び第２図は本発明に係る冷却方式を用いた洞道１
０を示し、この洞道内にはケーブル受金具１４，１４′
上に乗せて複数本の電力ケーブル１６が布設されている
。Embodiments of the present invention will be described in detail with reference to the drawings. Figures 1 and 2 show a tunnel 1 using the cooling method according to the present invention.
0, and there are cable receiving fittings 14, 14' in this tunnel.
A plurality of power cables 16 are laid on top.
洞道１０内の最上部付近には図示しない取付金具によっ
て洞道の長手方向に沿って固定して取付けられた保持パ
イプ１８が布設されており、この保持パイプ内には第２
図及び第３図に示すようにヒートパイプ２０が収納され
ている。A holding pipe 18 is installed near the top of the tunnel 10 and is fixedly attached along the longitudinal direction of the tunnel with a mounting bracket (not shown).
As shown in the figure and FIG. 3, a heat pipe 20 is housed.
保持パイプ１８は取付金具によって固定されるので熱の
変化によって伸縮することがない材料、例えばポリビニ
ールクロラィドの如き合成樹脂から作ることができる。
ヒートパイプ２０の端部は洞道外に配置された放熱器２
２に接続されてヒートパイプ内の温度を一定の値に維持
している。Since the retaining pipe 18 is fixed by the fitting, it can be made of a material that does not expand or contract due to changes in heat, such as a synthetic resin such as polyvinyl chloride.
The end of the heat pipe 20 is connected to a radiator 2 placed outside the tunnel.
2 to maintain the temperature inside the heat pipe at a constant value.
このヒートパイプは保持パイプ内では長手方向に拘束さ
れていないのでヒートパイプの熱の変動による伸縮を許
すことができる。保持パイプ１８は、第２図に示すよう
に、その上部に長手方向に適当な間隔をあげて洞道内の
加熱空気を流入する空気流入口２４と下部に同じく適当
な間隔をあげて設けられてヒートパイプ２０により吸熱
されて冷却された空気を洞道内に流出する空気流出口２
６とを有する。Since this heat pipe is not constrained in the longitudinal direction within the holding pipe, it can be allowed to expand and contract due to fluctuations in heat of the heat pipe. As shown in FIG. 2, the holding pipe 18 has an air inlet 24 provided at an appropriate interval in the longitudinal direction at the upper part thereof, through which the heated air in the tunnel flows in, and an air inlet 24 provided at an appropriate interval at the lower part thereof. Air outlet 2 through which air that has been cooled by heat absorption by the heat pipe 20 flows out into the tunnel.
6.
図示の実施例では空気流入口２４にファン２８が取付け
られて加熱空気を強制流入している。洞道１０内の温度
が相当に上昇した時、ファン２８を運転すると、洞道内
の最上部にある加熱空気は保持パイプ１８の空気流入口
２４から強制的に流入されてヒートパイプ２０に接触し
熱交換する。In the illustrated embodiment, a fan 28 is attached to the air inlet 24 to forcibly introduce heated air. When the temperature inside the tunnel 10 rises considerably, when the fan 28 is operated, the heated air at the top of the tunnel is forced to flow in through the air inlet 24 of the holding pipe 18 and comes into contact with the heat pipe 20. exchange heat.
ヒートパイプ２０はその特性上長手方向に温度勾配を有
しないで全長にわたってほぼ一定の温度に維持されてい
るので空気は一定温度に冷却される。このようにして冷
却された空気は第２図の矢印で示すように空気流出口２
６から下向きに流出される。第１図に示すように、保持
パイプ１８は左右に布設された電力ケーブル１６の中間
でその上方に布設されており、空気流出口２６がこの左
右の電力ケーブル１６に指向されていれば、冷却空気は
これらの電力ケーブルに吹付けられてその冷却を促進す
る。尚、保持パイプ１８内の空気とヒートパイプ２０・
との熱交換を促進するため、ヒートパイプ２川ま第４図
に示すように長手方向に延びる複数のヒレ２０ａを有す
るのが好ましし、。一例として洞道内の発生熱量が２．
８Ｗ／ｍである場合直径１２仇奴のポリ塩化ビニール製
の保持パイプ１８内に直径８物吻のヒートパイプ２０を
収納し、保持パイプ１８にｌｏｗ間隔で直径８仇吻の空
気流入口２４を設けてこの流入口にファン２８を設置し
、また空気流入口２４の直下から左右に２の、３机、５
ｍの間隔をあげてそれぞれＩＱ肋、４０肋、８仇奴の直
径の空気流出口２６を形成し、ヒートパイプ２０の設定
温度を２５０としたところ１．８Ｗ／ｍの熱量がヒート
パイプ２０によって取除かれて洞道温度を３５ｑｏにす
ることができた。Since the heat pipe 20 has no temperature gradient in its longitudinal direction and is maintained at a substantially constant temperature over its entire length, the air is cooled to a constant temperature. The air cooled in this way is transferred to the air outlet 2 as shown by the arrow in Figure 2.
It flows downward from 6. As shown in FIG. 1, the holding pipe 18 is installed between and above the left and right power cables 16, and if the air outlet 26 is directed toward the left and right power cables 16, cooling is possible. Air is blown over these power cables to facilitate their cooling. Note that the air inside the holding pipe 18 and the heat pipe 20
In order to promote heat exchange with the heat pipe, it is preferable that the two heat pipes have a plurality of fins 20a extending in the longitudinal direction as shown in FIG. As an example, the amount of heat generated within the sinus is 2.
In the case of 8 W/m, a heat pipe 20 with a diameter of 8 mm is housed in a holding pipe 18 made of polyvinyl chloride with a diameter of 12 mm, and air inlets 24 with a diameter of 8 mm are connected to the holding pipe 18 at low intervals. A fan 28 is installed at this inlet, and 2, 3, and 5 fans are installed on the left and right from directly below the air inlet 24.
When air outlets 26 with diameters of IQ rib, 40 rib, and 8 enemy are formed at intervals of 1.0 m, respectively, and the set temperature of the heat pipe 20 is set to 250, a heat amount of 1.8 W/m is generated by the heat pipe 20. It was removed and the temperature of the tunnel was brought to 35 qo.
本発明によれば、上記のように、温度勾配のないヒート
パイプを用いて洞道内の空気を冷却するので特に長い洞
道でも効率よく冷却することができ、また保持パイプは
ヒートパイプを保護する上にヒートパイプの熱伸縮を許
すので冷却系統の破損を防止することができる。According to the present invention, as described above, since the air in the tunnel is cooled using a heat pipe without a temperature gradient, even a long tunnel can be efficiently cooled, and the holding pipe protects the heat pipe. Since the heat pipe is allowed to expand and contract thermally, damage to the cooling system can be prevented.
第１図は本発明の冷却方式を用いた洞道の横断面図、第
２図は本発明の冷却方式の一例を示す概略図、第３図は
保持パイプとヒートパイプの拡大横断面図、第４図はヒ
ートパイプの変形例の部分斜視図である。
１０・・・…洞道、１８・・・・・・保持パイプ、２０
…・・・ヒートパイプ、２０ａ・・・・・・ヒレ、２４
・・・・・・空気流入口、２６．．・・・・空気流出口
、２８・・・・・・ファン。
第１図第３図
第２図
第４図FIG. 1 is a cross-sectional view of a tunnel using the cooling method of the present invention, FIG. 2 is a schematic diagram showing an example of the cooling method of the present invention, and FIG. 3 is an enlarged cross-sectional view of a holding pipe and a heat pipe. FIG. 4 is a partial perspective view of a modified example of the heat pipe. 10... Cave, 18... Holding pipe, 20
...Heat pipe, 20a...Fin, 24
...Air inlet, 26. ．． ...Air outlet, 28...Fan. Figure 1 Figure 3 Figure 2 Figure 4
Claims (1)
ートパイプを収納し、前記保持パイプに洞道内の加熱空
気を流入し前記ヒートパイプで冷却された空気を前記保
持パイプから洞道内に流出することを特徴とする洞道冷
却方式。 ２ 前記ヒートパイプはヒレを有することを特徴とする
特許請求の範囲第１項に記載の洞道冷却方式。 ３ 前記保持パイプへの加熱空気の流入は保持パイプの
長手方向に間隔をあけて設置されたフアンにより行われ
る特許請求の範囲第１項又は第２項に記載の洞道冷却方
式。 ４ 前記保持パイプから洞道内への空気の流出は保持パ
イプの長手方向に間隔をあけて設けられたフアンにより
行われる特許請求の範囲第１項、第２項又は第３項に記
載の洞道冷却方式。[Claims] 1. A heat pipe is housed in a holding pipe laid along the upper part of the tunnel, heated air in the tunnel flows into the holding pipe, and air cooled by the heat pipe is transferred to the holding pipe. A tunnel cooling method characterized by water flowing out from the pipe into the tunnel. 2. The tunnel cooling method according to claim 1, wherein the heat pipe has fins. 3. The tunnel cooling method according to claim 1 or 2, wherein heated air is introduced into the holding pipe by fans installed at intervals in the longitudinal direction of the holding pipe. 4. The tunnel according to claim 1, 2, or 3, wherein the outflow of air from the holding pipe into the tunnel is performed by fans provided at intervals in the longitudinal direction of the holding pipe. cooling method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP532178A JPS6037685B2 (en) | 1978-01-23 | 1978-01-23 | Tunnel cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP532178A JPS6037685B2 (en) | 1978-01-23 | 1978-01-23 | Tunnel cooling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5499997A JPS5499997A (en) | 1979-08-07 |
| JPS6037685B2 true JPS6037685B2 (en) | 1985-08-28 |
Family
ID=11607980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP532178A Expired JPS6037685B2 (en) | 1978-01-23 | 1978-01-23 | Tunnel cooling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037685B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6225390U (en) * | 1985-07-31 | 1987-02-16 | ||
| JPH0175677U (en) * | 1987-11-11 | 1989-05-23 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6192131U (en) * | 1984-11-20 | 1986-06-14 |
-
1978
- 1978-01-23 JP JP532178A patent/JPS6037685B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6225390U (en) * | 1985-07-31 | 1987-02-16 | ||
| JPH0175677U (en) * | 1987-11-11 | 1989-05-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5499997A (en) | 1979-08-07 |
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