JPH0194245A - Detection of acetylene gas dissolved in oil - Google Patents
Detection of acetylene gas dissolved in oilInfo
- Publication number
- JPH0194245A JPH0194245A JP62251313A JP25131387A JPH0194245A JP H0194245 A JPH0194245 A JP H0194245A JP 62251313 A JP62251313 A JP 62251313A JP 25131387 A JP25131387 A JP 25131387A JP H0194245 A JPH0194245 A JP H0194245A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- infrared rays
- transmitted
- acetylene
- gas chamber
- 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.)
- Pending
Links
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims description 6
- 239000012528 membrane Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 47
- 230000005540 biological transmission Effects 0.000 description 6
- 239000012466 permeate Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は電気機器の絶縁油中に溶存しているアセチレ
ンガスを検出する方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for detecting acetylene gas dissolved in insulating oil of electrical equipment.
（従来の技術）
周知のように変圧器、コンデンサ、リアク１−ルその他
の油入電気機器においては、動部的にア一り放電が発生
するような異常状態が発生すると、絶縁油が分解されて
アセチレンガスが発生することが知られている。したが
ってアセチレンガスを検出することによって、油入電気
機器の異常を、事故が発生する以前に検知することがで
きるようになる。(Prior art) As is well known, in oil-filled electrical equipment such as transformers, capacitors, reactors, etc., when an abnormal condition such as a flash discharge occurs in the dynamic parts, the insulating oil decomposes. It is known that acetylene gas is generated when Therefore, by detecting acetylene gas, abnormalities in oil-filled electrical equipment can be detected before an accident occurs.
従来ではこのようなアセチレンガスの検出に、電気機器
より絶縁油を採取し、これより溶存ガスを抽出し、これ
をガスクロマ１へグラフにより分析するようにしている
。しかしこのような手段によると、分析結果がでるまで
１〜３日を要するため、電気機器の異常発生に対する迅
速な対応がとれないし、また採取した絶縁油の運搬、分
析といった多大の工数を必要とする。Conventionally, in order to detect such acetylene gas, insulating oil is collected from electrical equipment, dissolved gas is extracted from this, and this is analyzed using a gas chroma 1 using a graph. However, with this method, it takes 1 to 3 days for the analysis results to be available, making it difficult to respond quickly to abnormalities in electrical equipment, and requiring a large amount of man-hours to transport and analyze the sampled insulating oil. do.
（発明が解決しようとする問題点）
この発明は油中に溶存しているアセチレンガスを簡単か
つ迅速にしかも連続的に検出できるようにすることを目
的とする。(Problems to be Solved by the Invention) An object of the present invention is to enable easy, rapid, and continuous detection of acetylene gas dissolved in oil.
（問題点を解決するための手段）
この発明は電気機器にフッ素系樹脂膜を介してガス室を
連設し、ガス室内に透過してきた電気機器内の絶縁油に
溶存しているガスに、波長が２．９〜３．２μｍの赤外
線を透過または反射させ、その透過または反射してきた
赤外線の、入射赤外線に対する強度の変化から、ガス内
のアセチレンガスを検出するようにしたことを特徴とす
る。(Means for Solving the Problems) This invention connects a gas chamber to an electrical device via a fluororesin membrane, and allows the gas dissolved in the insulating oil in the electrical device to permeate into the gas chamber. It is characterized by transmitting or reflecting infrared rays having a wavelength of 2.9 to 3.2 μm, and detecting acetylene gas in the gas from changes in the intensity of the transmitted or reflected infrared rays relative to the incident infrared rays. .
（作用）
波長が２．９〜３．２μｍの赤外線は、ガスの中でアセ
チレンガスにのみ反応して吸収される。したがってアセ
チレンガスを透過してきた赤外線は、アセチレンガスの
濃度に応じて減衰するので、入射赤外線に対する透過赤
外線の強度の変化を求めることによって、アセチレンガ
スの濃度を検出することができるようになる。また検出
対象のガスの中に他のガスが混在していても１選択的に
分析できるようになる。(Function) Infrared rays having a wavelength of 2.9 to 3.2 μm react only with acetylene gas in the gas and are absorbed. Therefore, the infrared rays that have passed through the acetylene gas are attenuated according to the concentration of the acetylene gas, so the concentration of acetylene gas can be detected by determining the change in the intensity of the transmitted infrared rays relative to the incident infrared rays. Furthermore, even if other gases are mixed in the gas to be detected, it becomes possible to selectively analyze one of them.
また検出対象の電気機器にフッ素系樹脂膜を介してガス
室を連設しているので、電気機器内の絶縁油に溶存して
いるガスは、連続的に常時ガス室内に透過してくるので
、常時連続して検出する二とができるようになる。In addition, since the gas chamber is connected to the electrical equipment to be detected via a fluororesin membrane, the gas dissolved in the insulating oil inside the electrical equipment continuously permeates into the gas chamber. , it becomes possible to perform continuous detection at all times.
（実施例） この発明の実施例を図によって説明すると、コ。(Example) An example of the present invention will be described with reference to the drawings.
はたとえば油入変圧器のような、検出対象の電気機器で
、その壁面の一部にバルブ２を設け、これにフッ素系樹
脂膜３を介してガス室４を連設する。is an electrical device to be detected, such as an oil-immersed transformer, and a valve 2 is provided on a part of its wall surface, and a gas chamber 4 is connected to this via a fluororesin film 3.
５はメンテナンスの際に使用するバルブである。5 is a valve used during maintenance.
周知のようにフッ素系樹脂膜３は絶縁油のような液体は
透過せず、ガスのような気体のみを透過する。したがっ
て電気機器１の内部でアーク放電、コロナ放電その他の
放電が発生していたとすれば、ガス室４内にはアセチレ
ンガス、水素ガスその他のガスが混在するようになる。As is well known, the fluororesin film 3 does not allow liquids such as insulating oil to pass therethrough, but only allows gases such as gas to pass therethrough. Therefore, if arc discharge, corona discharge, or other discharge occurs inside the electrical device 1, acetylene gas, hydrogen gas, and other gases will be mixed in the gas chamber 4.
そして時間の経過とともにその量は増加していくように
なる。And as time passes, the amount will increase.
６は波長が２．９〜３．２μｍの赤外線を発光する発光
器、７は同赤外線を受光する受光器である。第１図に示
す例は、赤外線を透過させることによって検出する例を
示し、ガス室４の相対する個所に透過窓８，９を設け、
一方の透過窓８を通して発光器６からの赤外線をガス室
４内に入射させて内部のガス中を透過させる。透過した
赤外線は透過窓９より透過して、受光器７により受光さ
れる。6 is a light emitter that emits infrared light having a wavelength of 2.9 to 3.2 μm, and 7 is a light receiver that receives the same infrared light. The example shown in FIG. 1 shows an example in which detection is performed by transmitting infrared rays, and transmission windows 8 and 9 are provided at opposite locations in the gas chamber 4.
Infrared rays from the light emitter 6 enter the gas chamber 4 through one transmission window 8 and are transmitted through the gas inside. The transmitted infrared rays are transmitted through the transmission window 9 and received by the light receiver 7.
前記した波長の赤外線はアセチレンガスにのみ反応し、
その濃度に応じて吸収される。したがって透過窓８に入
射される赤外線と、透過窓９から透過してきた赤外線と
の強度を比較対照して強度の差を検出すれば、透過して
きたガスに含まれているアセチレンガスの濃度を、他の
ガスが混在していてもこれを選択的に検出することがで
きるようになる。Infrared rays of the wavelengths mentioned above react only with acetylene gas,
It is absorbed depending on its concentration. Therefore, by comparing and contrasting the intensities of the infrared rays incident on the transmission window 8 and the infrared rays transmitted through the transmission window 9 and detecting the difference in intensity, the concentration of acetylene gas contained in the transmitted gas can be determined. Even if other gases are present, they can be selectively detected.
第２図はガス室４の内部に赤外線を反射する反射板１０
を設置し、その反射光から検出しようとする例を示し、
発光器６からの赤外線をガス室４内のガス中を通過させ
、これを反射板１０で反射させてから再びガス中を通過
させ、その反射光を受光器７によって受光させるように
したものである。この場合も入射光と反射光との比較か
ら、第１図の場合と同様にアセチレンガスの濃度が検出
できる。Figure 2 shows a reflector 10 that reflects infrared rays inside the gas chamber 4.
An example is shown in which a device is installed and detection is attempted from the reflected light.
The infrared rays from the light emitter 6 are passed through the gas in the gas chamber 4, reflected by the reflector 10, passed through the gas again, and the reflected light is received by the receiver 7. be. In this case as well, the concentration of acetylene gas can be detected by comparing the incident light and the reflected light as in the case of FIG.
（発明の効果）
以上詳述したようにこの発明によれば、電気機器にフッ
素系樹脂膜を介してガス室を連設し、ここに絶縁油に溶
存しているガスを透過させ、透過したガスに、波長が２
．９〜３．２μｍの赤外線を透過または反射させるだけ
の簡単な操作により、絶縁油中に溶存していたアセチレ
ンガスの濃度を、他のガスが混在していてもこれらの影
響を受けることなく、高精度、かつ迅速にしかも選択的
に検出することができるようになり、また連続して検出
できるので、電気機器の絶縁状態を常時監視することが
できるといった効果を奏する。(Effects of the Invention) As detailed above, according to the present invention, a gas chamber is connected to an electrical device through a fluororesin membrane, and gas dissolved in insulating oil is allowed to permeate through the gas chamber. Gas has a wavelength of 2
．． By simply transmitting or reflecting infrared rays of 9 to 3.2 μm, the concentration of acetylene gas dissolved in the insulating oil can be adjusted without being affected by other gases even if they are present. Since it is now possible to detect with high precision, quickly, and selectively, and it can be detected continuously, it is possible to constantly monitor the insulation state of electrical equipment.
第１図はこの発明の詳細な説明するための構成図、第２
図はこの発明の他の実施例を説明するための構成図であ
る。
１・・・電気機器、３・・・フッ素系樹脂膜、４・・・
ガス室、６・・・赤外線発光器、７・・・赤外線受光器
、６，７・・・透過窓、１ｏ・・・反射板、Fig. 1 is a configuration diagram for explaining the invention in detail;
The figure is a configuration diagram for explaining another embodiment of the present invention. 1... Electrical equipment, 3... Fluorine resin membrane, 4...
Gas chamber, 6... Infrared emitter, 7... Infrared receiver, 6, 7... Transmission window, 1o... Reflection plate,
Claims (1)
記フッ素系樹脂膜を介して前記ガス室内に透過してきた
前記電気機器内の絶縁油に溶存しているガスに、波長が
２．９〜３．２μｍの赤外線を透過または反射させ、そ
の透過または反射してきた赤外線の、入射赤外線に対す
る強度の変化から、前記ガス内のアセチレンガスを検出
するようにしたことを特徴とする油中溶存アセチレンガ
ス検出方法。A gas chamber is connected to an electrical device through a fluororesin film, and the gas dissolved in the insulating oil in the electrical equipment that has passed through the fluororesin film into the gas chamber has a wavelength of 2. .9 to 3.2 μm infrared rays are transmitted or reflected, and acetylene gas in the gas is detected from changes in the intensity of the transmitted or reflected infrared rays relative to the incident infrared rays. Dissolved acetylene gas detection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62251313A JPH0194245A (en) | 1987-10-05 | 1987-10-05 | Detection of acetylene gas dissolved in oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62251313A JPH0194245A (en) | 1987-10-05 | 1987-10-05 | Detection of acetylene gas dissolved in oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0194245A true JPH0194245A (en) | 1989-04-12 |
Family
ID=17220948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62251313A Pending JPH0194245A (en) | 1987-10-05 | 1987-10-05 | Detection of acetylene gas dissolved in oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0194245A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04104040A (en) * | 1990-08-24 | 1992-04-06 | Hitachi Cable Ltd | Apparatus for measuring gas in insulating oil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59111044A (en) * | 1982-12-17 | 1984-06-27 | Fuji Electric Corp Res & Dev Ltd | Apparatus for measuring gas in oil of oil contained insulating electric device |
-
1987
- 1987-10-05 JP JP62251313A patent/JPH0194245A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59111044A (en) * | 1982-12-17 | 1984-06-27 | Fuji Electric Corp Res & Dev Ltd | Apparatus for measuring gas in oil of oil contained insulating electric device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04104040A (en) * | 1990-08-24 | 1992-04-06 | Hitachi Cable Ltd | Apparatus for measuring gas in insulating oil |
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