JPH07101653B2 - Pole transformer with built-in heat pipe - Google Patents
Pole transformer with built-in heat pipeInfo
- Publication number
- JPH07101653B2 JPH07101653B2 JP1050799A JP5079989A JPH07101653B2 JP H07101653 B2 JPH07101653 B2 JP H07101653B2 JP 1050799 A JP1050799 A JP 1050799A JP 5079989 A JP5079989 A JP 5079989A JP H07101653 B2 JPH07101653 B2 JP H07101653B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- transformer
- heat pipe
- lid
- pipe
- 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
- 238000001704 evaporation Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 241001499583 Microchera albocoronata Species 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Transformer Cooling (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はヒートパイプ内蔵型柱上変圧器の冠雪防止構造
及びその防止方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a snow cap prevention structure for a pole transformer with a built-in heat pipe and a method for preventing the snow cap.
（従来の技術） 従来、積雪地帯において発生する柱上変圧器の冠雪は、
そのまま放置しておくと500〜1000kgにも達することに
より、機器の破損あるいは、冠雪の落下に伴なう電線切
断事故につながることがある。このため、人が定期的に
巡回し、冠雪を生じているときは人力で下方へ滑落させ
ていた。(Prior Art) Conventionally, the snowfall of pole transformers that occur in snowy areas
If left as it is, the weight may reach 500 to 1000 kg, which may lead to equipment damage or an electric wire disconnection accident due to falling snow. For this reason, people regularly patrolled and manually slid downwards when snowing.
又最近においては、例えば第４図に示すように、熱伝導
特性にすぐれたヒートパイプ（20）を、その１端を地中
に埋設して集熱蒸発部（21）とし、他端を電柱（23）の
冠雪が生ずる部分に導びいて放熱凝縮部（22）として、
地中熱を利用して電柱（23）上の冠雪を防止する方法が
提案されている（例えば実開昭60-128173号公報参
照）。Recently, for example, as shown in FIG. 4, a heat pipe (20) having excellent heat conduction characteristics is embedded in the ground at one end thereof to form a heat collecting / evaporating portion (21), and the other end thereof is a utility pole. As a heat dissipation condensing part (22) by leading to the part where the snowfall of (23) occurs
There has been proposed a method for preventing snow cover on utility poles (23) by utilizing underground heat (see, for example, Japanese Utility Model Laid-Open No. 60-128173).
（解決しようとする課題） 上述した従来の人手によって滑落させる手段は、寒冷地
での作業であり、作業者の肉体的負担は大きく、その費
用も馬鹿にならなかった。又この作業は活線が近くを走
っているため、作業者の電気による事故が発生したり、
落下する雪によって歩行者に対して人身事故を起こすお
それもあった。(Problems to be Solved) The above-mentioned conventional means for sliding down manually is a work in a cold region, which imposes a heavy physical burden on the worker and the cost is not ridiculous. In addition, since live lines are running near this work, accidents due to workers' electricity may occur,
Falling snow could cause personal injury to pedestrians.
後者のヒートパイプを用い地熱を利用して冠雪を溶かす
方法は、ヒートパイプの集熱蒸発部を地中10m程度も埋
設する必要があり、費用が莫大にかかる上、地中から汲
み上げることのできる熱量は微小であり、充分な効果が
得られないという問題点があった。In the latter method of melting snow using ground heat using heat pipe, it is necessary to bury the heat collecting and evaporating part of the heat pipe up to about 10 m in the ground, which is very expensive and is difficult to pump from the ground. The amount of heat that can be generated is very small, and there is a problem that a sufficient effect cannot be obtained.
（課題を解決するための手段） 本発明は上述の問題点を解決したヒートパイプ内蔵型柱
上変圧器の冠雪防止構造及びその防止方法を提供するも
ので、その特徴は、内部に作動液を封入した金属パイプ
により形成されたヒートパイプを変圧器容器の蓋部の内
面に沿わせて逆Ｕ字状に配設し、上記ヒートパイプの少
くとも両端末部を絶縁油中に浸漬して集熱蒸発部とな
し、蓋部に沿わせた中間部を放熱凝縮部としたことにあ
る。(Means for Solving the Problem) The present invention provides a structure for preventing snow cover of a pole transformer with a built-in heat pipe and a method for preventing the same, which solves the above-mentioned problems. A heat pipe formed of a metal pipe enclosing is arranged in an inverted U shape along the inner surface of the lid of the transformer container, and at least both ends of the heat pipe are immersed in insulating oil. The heat collecting / evaporating section is not provided, and the intermediate section along the lid is used as the heat radiating / condensing section.
第１図は本発明の柱上変圧器の具体例の縦断正面図であ
る。FIG. 1 is a vertical sectional front view of a concrete example of a pole transformer of the present invention.
図面において、（１）は変圧器本体、（２）は変圧器本
体（１）を収納し、内部に絶縁油（４）を封入した変圧
器容器、（３）は変圧器容器（２）の蓋部である。In the drawings, (1) is a transformer body, (2) is a transformer container that houses the transformer body (1) and has insulating oil (4) sealed therein, and (3) is a transformer container (2). It is a lid.
又（10）はヒートパイプで、例えば第２図に示すように
内部を連通した１本の金属パイプで、内部には作動液が
封入されており、変圧器容器（２）側壁及び蓋部（３）
の内面に沿って配設されている。しかして、ヒートパイ
プ（10）の中間部である放熱凝縮部（12）は蓋部（３）
の内面に沿って下方に凸状を形成しないように配設され
ており、両端部の集熱蒸発部（11）は絶縁油（４）中に
浸漬されている。Further, (10) is a heat pipe, for example, a single metal pipe communicating with the inside as shown in FIG. 2, in which the working fluid is enclosed, and the side wall and the lid ( 3)
Are arranged along the inner surface of the. Then, the heat dissipation condensing part (12) which is an intermediate part of the heat pipe (10) has a lid part (3).
The heat collecting and evaporating portions (11) at both ends are soaked in the insulating oil (4) so as not to form a convex shape downward.
（作用） 上述のように構成された柱上変圧器において、変圧器本
体（１）は定格負荷時に100W〜1000W程度の発熱がある
ため、絶縁油（４）の温度は外気温に対して30〜40℃の
上昇がある。従って、ヒートパイプ（10）の集熱蒸発部
（11）で、内部に封入されている作動液は気化熱を奪っ
て蒸発し、放熱凝縮部（12）へ移動する。放熱凝縮部
（12）では外気ないし冠雪によって冷却されて凝縮し、
集熱蒸発部（11）へ戻る。(Operation) In the pole transformer configured as described above, since the transformer body (1) generates heat of about 100 W to 1000 W at the rated load, the temperature of the insulating oil (4) is 30 with respect to the ambient temperature. There is an increase of ~ 40 ℃. Therefore, in the heat collecting / evaporating section (11) of the heat pipe (10), the working liquid sealed inside takes the vaporization heat and evaporates, and moves to the heat radiating and condensing section (12). In the heat dissipation condensing part (12), it is cooled and condensed by outside air or snow,
Return to the heat collecting evaporator (11).
例えば、外気温が−10℃においても、絶縁油（４）の温
度は20〜30℃に保つことができ、蓋部（３）の温度は約
10〜20℃程度に保つことができる。従って、蓋部（３）
上の冠雪を溶かすことが可能である。なお、柱上変圧器
の冠雪は、内部の変圧器本体（１）から最も離れた蓋部
（３）上に生じ、側面は絶縁油（４）を介して変圧器本
体（１）の熱が伝わり易いこと及び重力によって着雪が
生じることがないので、蓋部（３）上の冠雪のみ防止す
ればよい。For example, even when the outside temperature is -10 ° C, the temperature of the insulating oil (4) can be kept at 20 to 30 ° C, and the temperature of the lid (3) is about
It can be maintained at about 10 to 20 ° C. Therefore, the lid (3)
It is possible to melt the upper snowcap. The snow on the pole transformer is generated on the cover (3) farthest from the transformer main body (1) inside, and the side surface of the transformer main body (1) heats through the insulating oil (4). Since snow is easily transmitted and snow does not accrue due to gravity, only the snow cover on the lid portion (3) should be prevented.
ヒートパイプ（10）によって、変圧器本体（１）の熱を
絶縁油（４）を介して蓋部（３）の内面に持ち上げ、蓋
部（３）上の冠雪を防止する場合に問題となるのは、変
圧器の傾きである。電柱は電線や支線（ステー）に引張
られて傾いていることがあり、また電柱が傾いていなく
とも変圧器が電柱に対し、傾いて設置されることもあ
る。The heat pipe (10) raises the heat of the transformer body (1) through the insulating oil (4) to the inner surface of the lid (3) to prevent snow cover on the lid (3). It is the inclination of the transformer. The utility pole may be inclined by being pulled by an electric wire or a branch line (stay), and even if the utility pole is not inclined, the transformer may be installed inclined with respect to the utility pole.
常識的にはヒートパイプ（10）は第３図に示すように、
集熱蒸発部（11）及び放熱凝縮部（12）を１ヶ所づつと
って設置することが考えられる。しかし、この方式で
は、変圧器が傾くと、作動液が放熱凝縮部（12）先端の
Ａ部に溜まって、正常に作動しなくなる。Common sense says that the heat pipe (10) is as shown in FIG.
It is conceivable to install the heat collecting evaporator (11) and the heat radiating condenser (12) at one place each. However, in this method, when the transformer is tilted, the working fluid accumulates in the section A at the tip of the heat dissipation condensing section (12), and the transformer does not operate normally.
本発明では、変圧器の傾きに対しても正常に作動するよ
うに、放熱凝縮部（12）での作動液の溜りがないよう
に、ヒートパイプ（10）の両端末部を集熱蒸発部（11）
として、作動液がどちら側の集熱蒸発部（11）へも戻れ
るようにした。In the present invention, both ends of the heat pipe (10) are connected to the heat collecting and evaporating section so that the heat radiating and condensing section (12) does not accumulate the working liquid so that the transformer operates properly even when the transformer is tilted. (11)
As a result, the working fluid is allowed to return to either side of the heat collecting / evaporating section (11).
又ヒートパイプ（10）の集熱蒸発部（11）及び放熱凝縮
部（12）の長さを増すために、第２図に示すように、コ
の字形のヒートパイプを複数にし、これを内部が連通し
た１本のパイプにより構成してもよい。Further, in order to increase the lengths of the heat collecting / evaporating part (11) and the heat radiating / condensing part (12) of the heat pipe (10), a plurality of U-shaped heat pipes are provided inside the heat pipe (10) as shown in FIG. It may be configured by a single pipe communicating with.
作動液としては電気絶縁性にすぐれているフロン等を用
いることにより、作動液の漏れに対しても、変圧器の性
能に影響は生じない。By using CFC or the like, which has excellent electrical insulation properties, as the hydraulic fluid, even if the hydraulic fluid leaks, the performance of the transformer is not affected.
なお、作動液の溜りに対しては、通常、毛細管力を有す
るウィックをヒートパイプの内面に取付けることが考え
られるが、ウィックを取付けると、一般に熱輸送限界が
極端に落ち、通常フロンを作動液とする場合、数十Ｗの
限界である。これに対して、ウィックのないヒートパイ
プでは数KWの限界を有しており、前者の数十Ｗでは柱上
変圧器の冠雪を溶かすには不充分である。Regarding the pool of hydraulic fluid, it is usually considered that a wick having a capillary force is attached to the inner surface of the heat pipe. If so, the limit is several tens of W. On the other hand, a heat pipe without a wick has a limit of several KW, and the former tens of watts is not enough to melt the snow cap of a pole transformer.
（実施例） ヒートパイプはウィックのないサーモサイフォン型のも
のを用い、作動液フロン22、銅製で6mmφ、長さ約4mの
ものを第１図のように柱上変圧器内に配設した。通常柱
上変圧器の蓋部は上に凸を形成しており、この内面に沿
わせてヒートパイプを取付ける。なお、作動液はフロン
11、12、21、22等が適しており、パイプの材質は、加工
のし易さから銅が適しているが、鉄、ステンレススチー
ルでもよい。又パイプは裸でもよいが、変圧器の充電部
と接触してもよいように、プラスチックあるいは油浸紙
の絶縁層を被覆することが好ましい。(Example) As the heat pipe, a thermosyphon type without a wick was used, and a working fluid CFC 22, copper 6 mmφ and length 4 m was arranged in the pole transformer as shown in FIG. Normally, the lid of a pole transformer has a convex shape, and the heat pipe is attached along this inner surface. The working fluid is Freon
11, 12, 21, 22 and the like are suitable, and the material of the pipe is preferably copper because it is easy to process, but iron or stainless steel may be used. Although the pipe may be bare, it is preferably covered with an insulating layer of plastic or oil-impregnated paper so that it may come into contact with the live part of the transformer.
（発明の効果） 以上説明したように、本発明によれば、変圧器本体の熱
を熱源としているため、ランニングコストがゼロであ
る。又作動液が放熱凝縮部に溜ることがないよう、その
両側に集熱蒸発部を設けているので、変圧器の傾きに対
しても有効に作用する。(Effects of the Invention) As described above, according to the present invention, since the heat of the transformer main body is used as the heat source, the running cost is zero. Further, since the heat collecting and evaporating portions are provided on both sides of the heat radiating and condensing portion so that the working liquid does not collect in the heat radiating and condensing portion, the working fluid can be effectively applied to the inclination of the transformer.
さらに、作動液としてフロン等の絶縁性の良好な物質を
用いることにより、ヒートパイプに漏れが生じても変圧
器の性能に影響が生じない。Furthermore, by using a material having a good insulating property such as CFC as the working fluid, even if the heat pipe leaks, the performance of the transformer is not affected.
第１図は本発明の柱上変圧器の具体例の縦断正面図であ
る。 第２図は本発明におけるヒートパイプの配管の一例の説
明図である。 第３図は電柱の傾きによる問題点の説明図である。 第４図はヒートパイプによる従来の電柱冠雪防止方法の
一例の説明図である。 １……変圧器本体、２……変圧器容器、３……蓋部、４
……絶縁油、10……ヒートパイプ、11……集熱蒸発部、
12……放熱凝縮部。FIG. 1 is a vertical sectional front view of a concrete example of a pole transformer of the present invention. FIG. 2 is an explanatory view of an example of piping of the heat pipe according to the present invention. FIG. 3 is an explanatory diagram of a problem due to the inclination of the electric pole. FIG. 4 is an explanatory view of an example of a conventional method of preventing snow from being covered with electric poles by using a heat pipe. 1 ... Transformer body, 2 ... Transformer container, 3 ... Lid part, 4
...... Insulating oil, 10 ...... Heat pipe, 11 ...... Heat collection and evaporation section,
12: Heat dissipation condensing section.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 安孫子 堅二 宮城県仙台市宮町４丁目５―57―101 (72)発明者 角田 六郎 新潟県新潟市小張木27―22 (72)発明者 関 新也 新潟県北魚沼郡小出町大字青島字下島1313 (72)発明者 余田 拓郎 大阪府大阪市此花区島屋１丁目１番３号 住友電気工業株式会社大阪製作所内 (72)発明者 畑 良輔 大阪府大阪市此花区島屋１丁目１番３号 住友電気工業株式会社大阪製作所内 (72)発明者 木皿 昭 宮城県仙台市郡山１丁目２番１号 北日本 電線株式会社内 (72)発明者 柿沼 喜久男 宮城県仙台市郡山１丁目２番１号 北日本 電線株式会社内 (56)参考文献 特開 昭61−271807（ＪＰ，Ａ) 特開 昭56−150808（ＪＰ，Ａ) 特開 昭60−225409（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenji Abiko 4-Chome 5-57-101 Miyamachi, Sendai City, Miyagi Prefecture (72) Inventor Rokuro Tsunoda 27-22, Kobariki, Niigata City, Niigata Prefecture (72) Inventor Kanshin 1313 Shimoshima, Aoshima, Koide-machi, Kitauonuma-gun, Niigata Prefecture 1313 (72) Inventor Takuro Yohda 1-3-3 Shimaya, Konohana-ku, Osaka City, Osaka Prefecture Sumitomo Electric Industries, Ltd. Osaka Works (72) Inventor Ryosuke Hata, Osaka Prefecture Sumitomo Electric Industries, Ltd. 1-3-1 Shimaya, Konohana-ku, Yokohama-shi (72) Inventor Akira Kisara 1-2-1 Koriyama, Sendai-shi, Miyagi Kitanihon Electric Cable Co., Ltd. (72) Inventor Kikuo Kakinuma Miyagi Prefecture 1-2-1, Koriyama, Sendai-shi Kita Nippon Electric Cable Co., Ltd. (56) Reference JP-A-61-271807 (JP, A) JP-A-56-150808 (JP, A) JP-A-60-225 409 (JP, A)
Claims (1)
形成されたヒートパイプを変圧器容器の蓋部の内面に沿
わせて逆Ｕ字状に配設し、上記ヒートパイプの少くとも
両端末部を絶縁油中に浸漬して集熱蒸発部となし、蓋部
に沿わせた中間部を放熱凝縮部としたことを特徴とする
ヒートパイプ内蔵型柱上変圧器。1. A heat pipe formed of a metal pipe in which a working fluid is sealed is arranged in an inverted U shape along the inner surface of a lid of a transformer container, and at least both ends of the heat pipe are provided. A pole transformer with a built-in heat pipe, characterized in that the part is immersed in insulating oil to form a heat collecting and evaporating part, and the middle part along the lid part is used as a heat radiating and condensing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1050799A JPH07101653B2 (en) | 1989-03-01 | 1989-03-01 | Pole transformer with built-in heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1050799A JPH07101653B2 (en) | 1989-03-01 | 1989-03-01 | Pole transformer with built-in heat pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02229411A JPH02229411A (en) | 1990-09-12 |
| JPH07101653B2 true JPH07101653B2 (en) | 1995-11-01 |
Family
ID=12868834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1050799A Expired - Fee Related JPH07101653B2 (en) | 1989-03-01 | 1989-03-01 | Pole transformer with built-in heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07101653B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2914989B1 (en) * | 2007-04-13 | 2009-07-24 | Johnson Controls Neige Soc Par | SNOW PLANT AND STACK FOR SUCH INSTALLATION. |
| JP2012074639A (en) * | 2010-09-30 | 2012-04-12 | Daihen Corp | Method of varying load capacity of transformer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56150808A (en) * | 1980-04-23 | 1981-11-21 | Kansai Electric Power Co Inc:The | Prevention device of formation of dew in case body |
| JPS61271807A (en) * | 1985-05-27 | 1986-12-02 | Mitsubishi Electric Corp | Transformer |
-
1989
- 1989-03-01 JP JP1050799A patent/JPH07101653B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02229411A (en) | 1990-09-12 |
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