JPS6036044B2 - Oil leak detection cable - Google Patents
Oil leak detection cableInfo
- Publication number
- JPS6036044B2 JPS6036044B2 JP11890478A JP11890478A JPS6036044B2 JP S6036044 B2 JPS6036044 B2 JP S6036044B2 JP 11890478 A JP11890478 A JP 11890478A JP 11890478 A JP11890478 A JP 11890478A JP S6036044 B2 JPS6036044 B2 JP S6036044B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- leak detection
- detection cable
- oil leak
- cable
- 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
- 238000001514 detection method Methods 0.000 title claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000005060 rubber Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 25
- 229920001577 copolymer Polymers 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000005062 Polybutadiene Substances 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 229920005676 ethylene-propylene block copolymer Polymers 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Description
【発明の詳細な説明】
この発明は、石油製品、その他の液体がパイプ又は貯蔵
タンクから漏れるのを検出するための漏油検知用ケーブ
ルに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil leak detection cable for detecting leakage of petroleum products or other liquids from pipes or storage tanks.
石油パイプライン、石油タンク又はＯＦケーブル等にお
いて油漏れが発生した場合、出来るだけ早く発見し、対
策をする必要があるが、これらの油の充満した管路、タ
ンク等は地理的条件あるいは火災などの危険性から地中
に埋設されることが多いので、油漏れ発生していても地
上からは長い間、発見されず、そのために、周囲環境を
汚染したり、漏油への引火、送油パイプラインの爆発と
いう大惨事に至ることがある。When oil leaks occur in oil pipelines, oil tanks, OF cables, etc., it is necessary to discover them as soon as possible and take countermeasures. Because oil is often buried underground due to the danger of This can lead to a catastrophic pipeline explosion.
したがって、送油パイプ、タンク等からのわずかな漏油
をも検知し、上記したような事故の発生を未然に防止す
ることが重要な課題となっている。一方、ＯＦケーブル
においても、絶縁可能を保持する上で大きな問題となっ
ており、漏油の検知がのぞまれている。ところで、この
種の目的に使用される漏油検知装置については、従来か
ら種々検討されているが、現在のところまだ実用化され
るには至っていない。また、この種のケーブルの大部分
は長期間の信頼性や感度にも問題がある。この発明は、
前記したような欠点に鑑みなされたものであって、その
目的とするところは、信頼性が高く、まや感度が良く、
しかもわずかな油でも検知可能な漏油検知用ケーブルを
提供することにある。Therefore, it has become an important issue to detect even the slightest leakage of oil from oil pipes, tanks, etc., and to prevent the above-mentioned accidents from occurring. On the other hand, in OF cables as well, maintaining insulation is a major problem, and detection of oil leakage is desired. Incidentally, although various oil leak detection devices used for this type of purpose have been studied in the past, they have not yet been put into practical use. Additionally, most cables of this type have problems with long-term reliability and sensitivity. This invention is
It was created in view of the above-mentioned drawbacks, and its purpose is to provide high reliability, good sensitivity, and
Moreover, it is an object of the present invention to provide an oil leakage detection cable that can detect even a small amount of oil.
この発明の特徴は、油がケーブルの表面に触れると、薄
い金属層の油浸透部（例えば小孔）より油が膨潤しやす
いゴム層に浸透し、ゴム層を膨潤させて表面部の薄い金
属層を破壊し、ケーブル長手方向の導電性を遮断するよ
うに構成した漏油検知用ケーブルにある。The feature of this invention is that when oil comes into contact with the surface of the cable, the oil penetrates into the rubber layer, which is easy to swell, through the oil-permeable parts (for example, small holes) of the thin metal layer, causing the rubber layer to swell. This oil leakage detection cable is constructed to destroy the layer and cut off conductivity in the longitudinal direction of the cable.
この発明の漏油検知用ケーブルの一実施例を第１図及び
第２図により説明すする。An embodiment of the oil leak detection cable of the present invention will be explained with reference to FIGS. 1 and 2.
このケーブルは、支持線６が油膨潤性ゴム層５でおおわ
れ、その外層が多数の小孔３をもった薄い金属層でおお
われ、更にこの薄い金属層がゴム補強層２でおおわれて
おり、のぞまし〈は更にこのゴム補強層が編組１でおお
われた構造をもっている。In this cable, the support wire 6 is covered with an oil-swellable rubber layer 5, the outer layer of which is covered with a thin metal layer with many small holes 3, and this thin metal layer is further covered with a rubber reinforcing layer 2. Zomashi further has a structure in which this rubber reinforcing layer is covered with braid 1.
第２図よりこの発明の漏油検知用ケーブルが油に触れた
ときの動作を説明する。The operation when the oil leak detection cable of the present invention comes into contact with oil will be explained with reference to FIG.
油がケーブルの表面に触れると、薄い金属層４の小孔３
より油が勝潤性ゴム層５に浸透し、このゴム層と膨潤さ
せて表面部の薄い金属層４を破壊しケーブル長手方向の
導電性が遮断され、その変化が電流計７で検出される方
式である。When oil touches the surface of the cable, small holes 3 in the thin metal layer 4
The oil penetrates into the wettable rubber layer 5, swells with this rubber layer, and destroys the thin metal layer 4 on the surface, cutting off conductivity in the longitudinal direction of the cable, and this change is detected by the ammeter 7. It is a method.
膨潤性ゴム層には、油膨潤性が大きいエチレンープロピ
レンブロック共重合体、スチレンーブタジェンフロック
共重合体、エチレン−酢酸ビニル共重合体、ブタジェン
ゴム等が用いられる。For the swellable rubber layer, ethylene-propylene block copolymer, styrene-butadiene floc copolymer, ethylene-vinyl acetate copolymer, butadiene rubber, etc., which have high oil swelling properties, are used.
ゴム補強層には、補強効果にすぐれ、また油に触れると
溶解するスチレンーブタジェンフロック共重合体が最も
適しているが、他に耐油性の悪いエチレンープロピレン
ブ。ック共重合体、エチレン−酢酸ビニル共重合体、ブ
タジェンゴム等が用いられる。薄い金属層には、鉛、錫
、亜鉛、低融点、の合金等が用いられ、厚さは５０〜１
００仏ｍ程度が適切である。前記したような素材を用い
て製造したこの発明の漏油検知用ケーブルは、パイプ又
はタンクに隣接して埋設され、Ａ重油、灯油、ガソリン
等に触れると、５〜２の分位で作動する。For the rubber reinforcing layer, styrene-butadiene flock copolymer, which has excellent reinforcing effect and dissolves when it comes in contact with oil, is most suitable, but ethylene-propylene floc copolymer has poor oil resistance. Copolymer, ethylene-vinyl acetate copolymer, butadiene rubber, etc. are used. For the thin metal layer, an alloy of lead, tin, zinc, low melting point, etc. is used, and the thickness is 50 to 1
Approximately 0.00 French meters is appropriate. The oil leak detection cable of the present invention manufactured using the above-mentioned material is buried adjacent to a pipe or tank, and when it comes into contact with A-heavy oil, kerosene, gasoline, etc., it activates within 5 to 2 minutes. .
第１図はこの発明の漏油検知用ケーブルの一実施例を示
す断面図である。
第２図は本発明の漏油検知用ケーブルの動作状態を示す
原理図である。１：編組、２：ゴム補強層、３：小孔、
４：薄い金属層、５：膨潤性ゴム層、６：支持線、７：
電流計。
ナ′図
才と図FIG. 1 is a sectional view showing an embodiment of the oil leak detection cable of the present invention. FIG. 2 is a principle diagram showing the operating state of the oil leak detection cable of the present invention. 1: Braid, 2: Rubber reinforcement layer, 3: Small hole,
4: Thin metal layer, 5: Swellable rubber layer, 6: Support wire, 7:
Ammeter. Na' talent and figure
Claims (1)
層が形成されていることを特徴とする漏油検知用ケーブ
ル。1. An oil leak detection cable characterized in that a metal layer having a large number of small holes is formed on the outer periphery of an oil-swellable rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11890478A JPS6036044B2 (en) | 1978-09-27 | 1978-09-27 | Oil leak detection cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11890478A JPS6036044B2 (en) | 1978-09-27 | 1978-09-27 | Oil leak detection cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5546255A JPS5546255A (en) | 1980-03-31 |
| JPS6036044B2 true JPS6036044B2 (en) | 1985-08-17 |
Family
ID=14748037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11890478A Expired JPS6036044B2 (en) | 1978-09-27 | 1978-09-27 | Oil leak detection cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6036044B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH064177B2 (en) * | 1986-04-11 | 1994-01-19 | 本田技研工業株式会社 | Forging equipment |
-
1978
- 1978-09-27 JP JP11890478A patent/JPS6036044B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5546255A (en) | 1980-03-31 |
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