JPS63233174A - Method for preventing ice and snow damage of utility pole guy - Google Patents
Method for preventing ice and snow damage of utility pole guyInfo
- Publication number
- JPS63233174A JPS63233174A JP6535187A JP6535187A JPS63233174A JP S63233174 A JPS63233174 A JP S63233174A JP 6535187 A JP6535187 A JP 6535187A JP 6535187 A JP6535187 A JP 6535187A JP S63233174 A JPS63233174 A JP S63233174A
- Authority
- JP
- Japan
- Prior art keywords
- heat pipe
- heat
- snow
- utility pole
- ice
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 10
- 239000012530 fluid Substances 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 8
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分呵）
着する氷雪を溶かし、氷雪による支線の切断あるいは弛
み等の損傷を防止する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application) The present invention relates to a method for melting ice and snow that adheres to the branch line and preventing damage such as cutting or loosening of branch lines due to ice and snow.
（従来技術）
第１図はヒートパイプを用いた電柱支線の氷雪損傷防止
方法の概要説明図である。(Prior Art) FIG. 1 is a schematic explanatory diagram of a method for preventing ice and snow damage to utility pole branch lines using a heat pipe.
図面において、（１）は電柱、（２）はその支線、（３
）ハヒ−＋−パイプで、ヒートパイプ（３）の吸熱蒸発
部（３１）は土壌（４）中に埋設されており、その放熱
凝縮部（３２）は支線（２）の特に積雪部分に沿って配
設されている。しかして、上記ヒートパイプ（３）の吸
熱蒸発部（３Ｉ）によって地下２〜５ｍあるいはそれ以
上深いところの土壌熱を汲み」−げ、この熱を地上の放
熱凝縮部（３２）で放熱して支線（２）周囲の氷雪を溶
かし、氷雪による支線（２）の切断あるいは弛みを防止
する方法である。In the drawing, (1) is a utility pole, (2) is its branch line, and (3 is
) The heat-absorbing evaporator part (31) of the heat pipe (3) is buried in the soil (4), and its heat-dissipating condensing part (32) is located along the branch line (2), especially along the snow-covered part. It is arranged as follows. The endothermic evaporation section (3I) of the heat pipe (3) draws up soil heat from 2 to 5 meters or deeper underground, and radiates this heat through the heat dissipation and condensation section (32) above ground. This method melts the ice and snow around the branch line (2) to prevent the branch line (2) from being cut or loosened due to ice and snow.
例としてはフロンが用いられ、この場合作動液の封入量
は、例えば日本技術経済センター刊ｒＲｅｓｅｒｃｈ
ａｎｄ ｄｅｖｅｌｏｐｍｅｎｔ ｏｆ ｈｅａｔ ｐ
ｉｐｅ ｔｅｃｈｎｏｌｏｇｙＪに示されるように、ヒ
ートパイプの全内容積の１８〜２２％が適当な封入量と
されている。As an example, Freon is used, and in this case, the amount of hydraulic fluid sealed is
and development of heat p
As shown in ipe technology J, 18 to 22% of the total internal volume of the heat pipe is considered to be a suitable filling amount.
（解決しようとする問題点）
ところが、」二連したようなヒートパイプを用いた電柱
支線の氷雪損傷防止方法においては、ヒートパイプの温
度勾配を低く抑えることが重要となる。即ち、ヒートパ
イプの温度勾配が大きい場合、ヒートパイプの放熱凝縮
部の表面温度が０℃を割って支線の周辺の氷雪を溶かす
ことが不可能な事態を生ずるおそれがある。(Problem to be Solved) However, in a method for preventing ice and snow damage to utility pole branch lines using double heat pipes, it is important to keep the temperature gradient of the heat pipes low. That is, if the temperature gradient of the heat pipe is large, there is a risk that the surface temperature of the heat dissipation and condensation part of the heat pipe will be below 0° C., making it impossible to melt the ice and snow around the branch line.
ヒートパイプは通常、熱輸送量が大きい領域で有効に曇
くように作動液量が設定されているが、本発明が対象と
する用途の場合、熱輸送量が小さく、通常の作動液封入
量ではヒートパイプの温度勾配が大きくなるという問題
点があった。これは熱輸送量が小さい場合には、作動液
の液溜部分における気化性が著しく低下するため、液溜
部分での温度勾配が大きくなるために生ずる現象である
。Normally, the amount of working fluid in a heat pipe is set so that it is effectively fogged in an area where the amount of heat transport is large, but in the case of the application targeted by the present invention, the amount of heat transport is small and the amount of working fluid sealed is set to the normal amount. However, there was a problem in that the temperature gradient of the heat pipe became large. This is a phenomenon that occurs because when the amount of heat transport is small, the vaporizability of the working fluid in the liquid reservoir portion is significantly reduced, and the temperature gradient in the liquid reservoir portion becomes large.
を用いた電柱支線の氷雪損傷防止方法を提供するもので
、その特徴は、作動液ＩＩ人量がヒートパイプ内容積の
３〜１５％の範囲にあるヒートバイブプを用いることに
ある。The present invention provides a method for preventing ice and snow damage to utility pole branch lines using a heat vibrator having an amount of working fluid II in the range of 3 to 15% of the internal volume of the heat pipe.
（作用）
本願発明者等は種々実験の結果、作動液の封入量はヒー
トパイプ内容積の３〜１５％の範囲が最も望ましいこと
を見出した。(Function) As a result of various experiments, the inventors of the present application have found that the most desirable amount of hydraulic fluid to be filled is in the range of 3 to 15% of the internal volume of the heat pipe.
即ち、作動液の封入量をヒートパイプ内容積の３〜１５
％とした場合、第４図の実験データからもわかるように
ヒートパイプの長手方向の温度差（八Ｔ）を２０％封入
時に対し０．３〜１．０’Ｃ低く抑えることが出来る。In other words, the amount of hydraulic fluid sealed is 3 to 15 times the internal volume of the heat pipe.
%, the temperature difference (8T) in the longitudinal direction of the heat pipe can be suppressed to 0.3 to 1.0'C lower than when the heat pipe is filled with 20%, as can be seen from the experimental data shown in FIG.
これは作動液量が多い場合、例えば第２図においてヒー
トパイプ（３）の吸熱蒸発部における液溜部分（３４）
が占める割合が大きく、特に大熱量が地熱熱源のヒート
パイプのように小さい時、この液溜部分（３４）におけ
る作動液の気化性は液膜部に比して非常に悪く、この液
溜部分を少なくシ、液膜部を長くすることにより吸熱部
分における温度勾配を小さくシ、放熱凝縮部におけるヒ
イプの長手方向の温度差が２°Ｃ以上となり、土壌温度
が低い場合又は雪温が低い場合は、ヒートパイプの放熱
凝縮部の表面温度が０℃を切り、充分な融雪が出来なく
なるおそれがある。文通に作動液封入量が３％未満の場
合は、全長にわたって作動液が満たされず、作動液のド
ライアウトを生し、ヒートパイプの温度勾配は急激に大
きくなる。When the amount of working fluid is large, for example, the liquid reservoir part (34) in the endothermic evaporation part of the heat pipe (3) in Fig. 2
Especially when the amount of heat is small, such as in a heat pipe of a geothermal heat source, the vaporization of the working fluid in this liquid reservoir part (34) is very poor compared to the liquid film part. By increasing the length of the liquid film part, the temperature gradient in the endothermic part can be reduced. When the temperature difference in the longitudinal direction of the heat dissipation condensation part is 2°C or more, and the soil temperature is low or the snow temperature is low. In this case, the surface temperature of the heat dissipation and condensation part of the heat pipe may drop below 0°C, which may prevent sufficient snow melting. If the amount of hydraulic fluid sealed in the correspondence is less than 3%, the entire length will not be filled with hydraulic fluid, resulting in dry-out of the hydraulic fluid, and the temperature gradient of the heat pipe will sharply increase.
なお、第３図（イ）のようにヒートパイプ容器（３３）
の内周面にウィック（３５）を設けるとか、同図仲）の
ように長さ方向に溝（３６）を設けることにより、その
毛細管力により作動液が膜状に持ぢ上げられて液膜部分
が一層長くなり、吸熱部温度勾配をさらに小さく出来る
。In addition, as shown in Figure 3 (a), the heat pipe container (33)
By providing a wick (35) on the inner circumferential surface of the wick (35) or providing a groove (36) in the length direction as shown in the middle of the same figure, the working fluid is lifted up in the form of a film by the capillary force, forming a liquid film. The section becomes longer and the temperature gradient of the heat absorbing part can be further reduced.
又ヒートパイプの土壌中への埋設は、第１図のように垂
直にしてもよいし、放熱凝縮部に近い程高くなるよう傾
斜をもたせて斜めに布設してもよ（発明の効果）
雪
−１−述した本発明の電柱支線の本設損傷防止方法によ
れば、作動液封入量がヒートパイプ内容積の３〜１５％
の範囲にあるヒートパイプを用いることにより、ヒート
パイプの温度勾配を小さく抑えることが出来、大熱量が
小さい土壌中浅い部分の地熱を熱源としたヒートパイプ
を用いた電柱支線の氷雪防止方法として極めて効果的で
ある。In addition, the heat pipe may be buried vertically in the soil as shown in Figure 1, or it may be laid diagonally so that the closer it is to the heat dissipation and condensation part, the higher the heat pipe is buried (effects of the invention). -1- According to the method for permanently installing damage prevention for utility pole branch lines of the present invention, the amount of hydraulic fluid sealed is 3 to 15% of the internal volume of the heat pipe.
By using a heat pipe in the range of Effective.
第１図は電柱支線の水雷損傷防止方法の概要説明図、第
２図及び第３図（イ）（ロ）はいずれもヒートパイプの
一例の説明図である。
第４図はヒートパイプの作動液量と表面温度差の関係特
性図である。
■・・・電柱、２・・・電柱支線、３・・・ヒートパイ
プ、３１・・・吸熱蒸発部、３２・・・放熱凝縮部、３
３・・・ヒートパイプ容器、３４・・・液溜部分、３５
・・・ウィック、３６・・・溝。
滓１ 図
悌２ 図 第 ３ 図
勢４閃FIG. 1 is a schematic explanatory diagram of a method for preventing torpedo damage to utility pole branch lines, and FIGS. 2 and 3 (a) and (b) are explanatory diagrams of an example of a heat pipe. FIG. 4 is a characteristic diagram showing the relationship between the amount of working fluid in the heat pipe and the difference in surface temperature. ■... Utility pole, 2... Utility pole branch line, 3... Heat pipe, 31... Endothermic evaporation section, 32... Heat dissipation condensation section, 3
3... Heat pipe container, 34... Liquid reservoir part, 35
...wick, 36...groove. 1st figure 2nd figure 3rd figure 4th flash
Claims (2)
熱凝縮部を電柱支線に沿わせて配設し、土壌熱を利用し
て支線周辺の氷雪を溶かし電柱支線の氷雪による損傷を
防止する方法において、作動液封入量がヒートパイプ内
容積の３〜１５％の範囲にあるヒートパイプを用いるこ
とを特徴とする電柱支線の氷雪損傷防止方法。(1) The heat absorbing and evaporating part of the heat pipe is buried in the soil, and the heat dissipating and condensing part is placed along the pole branch line, using soil heat to melt ice and snow around the branch line and prevent damage to the pole branch line from ice and snow. A method for preventing ice and snow damage to utility pole support lines, characterized in that a heat pipe is used in which the amount of hydraulic fluid sealed is in the range of 3 to 15% of the internal volume of the heat pipe.
向の溝を設けたことを特徴とする特許請求の範囲第１項
記載の電柱支線の氷雪損傷防止方法。(2) The method for preventing ice and snow damage to utility pole support lines as set forth in claim 1, characterized in that a wick or a longitudinal groove is provided on the inner circumferential surface of the heat pipe container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065351A JPH0643764B2 (en) | 1987-03-18 | 1987-03-18 | How to prevent ice and snow damage on telephone pole branches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065351A JPH0643764B2 (en) | 1987-03-18 | 1987-03-18 | How to prevent ice and snow damage on telephone pole branches |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63233174A true JPS63233174A (en) | 1988-09-28 |
| JPH0643764B2 JPH0643764B2 (en) | 1994-06-08 |
Family
ID=13284446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62065351A Expired - Lifetime JPH0643764B2 (en) | 1987-03-18 | 1987-03-18 | How to prevent ice and snow damage on telephone pole branches |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643764B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641180U (en) * | 1979-09-10 | 1981-04-16 | ||
| JPS61120859U (en) * | 1985-01-14 | 1986-07-30 |
-
1987
- 1987-03-18 JP JP62065351A patent/JPH0643764B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641180U (en) * | 1979-09-10 | 1981-04-16 | ||
| JPS61120859U (en) * | 1985-01-14 | 1986-07-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0643764B2 (en) | 1994-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |