WO2009110073A1 - Method for removing dibenzyl disulfide and apparatus for remvoing dibenzyl disulfide - Google Patents
Method for removing dibenzyl disulfide and apparatus for remvoing dibenzyl disulfide Download PDFInfo
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- WO2009110073A1 WO2009110073A1 PCT/JP2008/053960 JP2008053960W WO2009110073A1 WO 2009110073 A1 WO2009110073 A1 WO 2009110073A1 JP 2008053960 W JP2008053960 W JP 2008053960W WO 2009110073 A1 WO2009110073 A1 WO 2009110073A1
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- insulating oil
- benzyl
- sulfide
- dibenzyl disulfide
- adsorbent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
- H01B3/22—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/12—Electrical isolation oil
Definitions
- the present invention relates to a dibenzyl disulfide removal method and a dibenzyl disulfide removal apparatus for removing dibenzyl disulfide contained in insulating oil used in electrical equipment.
- Insulating oils used in electrical equipment are aromatic saturated hydrocarbons such as paraffin, which is a chain saturated hydrocarbon, naphthene, which is a cyclic saturated hydrocarbon, and aromatic hydrocarbons having a double bond in a ring such as a benzene ring. It contains various types of hydrocarbons as its main component and contains small amounts of sulfur compounds, nitrogen compounds and oxygen compounds. Among these, it is known that compounds such as copper sulfide and silver sulfide are generated on the surfaces of copper, silver and copper alloys which are a part of constituent materials of electrical equipment due to sulfur compounds.
- metal sulfides are semiconductors, and they are known to impair the reliability of equipment, such as overheating of the contact part due to generation on the contact surface, floating in insulating oil due to detachment from the metal surface, and causing a decrease in dielectric strength. ing.
- Patent Document 1 Another container is provided before injecting the insulating oil into the electric equipment, and the container contains powder.
- a technology for removing harmful sulfur compounds in insulating oil by producing copper sulfide by reacting with sulfur compounds in insulating oil is disclosed. .
- copper sulfide is also deposited on the surface of an insulator made of cellulose which is a part of the constituent material of electrical equipment.
- copper sulfide is deposited on a coil insulating paper made of cellulose, resulting in a decrease in dielectric strength between the coils. As a result, dielectric breakdown occurs between the coils, leading to equipment failure.
- the electrical equipment when the insulating oil contains a specific sulfur compound called di-benzyl di-sulfide, and the electrical equipment has a structure in which an insulating material made of copper and cellulose contacts the insulating oil, the surface of the insulating material Copper sulfide precipitates on the surface.
- Dibenzyl disulfide can also be removed by the technique disclosed in Patent Document 1, but when dibenzyl disulfide is removed by this technique, 150 ° C. is required to generate sulfide on the metal surface. There is a problem that it is necessary to heat to the extent, and there is a possibility that the insulating oil is deteriorated by this heating. In addition, a heater for heating and its control device, and accessory equipment such as a stirrer for suspending the powdered metal in the insulating oil are necessary, which causes a problem that the device becomes complicated and large.
- the present invention has been made in view of the above, and obtains a dibenzyl disulfide removal method and a dibenzyl disulfide removal apparatus that remove dibenzyl disulfide with a compact apparatus at room temperature. With the goal.
- the dibenzyl disulfide removal method comprises contacting the insulating oil injected into the electrical equipment with an adsorbent that adsorbs dibenzyl disulfide.
- Di-benzyl di-sulfide removing step for removing di-benzyl di-sulfide contained in insulating oil
- insulating-oil injecting step for injecting the insulating oil from which di-benzyl di-sulfide has been removed to the electrical equipment It is characterized by including these.
- FIG. 1 is a diagram showing a configuration of a dibenzyl disulfide removing apparatus according to an embodiment of the present invention.
- FIG. 2 is a view showing the analysis result of the insulating oil before the adsorbent treatment by the di-benzyl di-sulfide removing apparatus according to the embodiment of the present invention.
- FIG. 3 is a diagram showing the analysis result of the insulating oil after the adsorbent treatment by the di-benzyl di-sulfide removing apparatus according to the embodiment of the present invention.
- the electrical equipment targeted by the di-benzyl di-sulfide removing method and the di-benzyl di-sulfide removing apparatus according to the embodiment of the present invention includes a container containing insulating oil and copper immersed in the insulating oil. And a copper part having a copper alloy and an insulator made of cellulose. For example, a transformer having a coil made of copper and insulating paper wound around the coil.
- the insulating oil is, for example, an insulating oil as shown in Japanese Industrial Standard JIS C 2320.
- FIG. 1 is a diagram showing a configuration of a di-benzyl di-sulfide removing apparatus according to an embodiment of the present invention.
- a dibenzyl disulfide removing apparatus 10 performs an adsorbent treatment with a container 1, an adsorbent 2 accommodated in the container 1, and the dibenzyl sulfide removing apparatus 10 from above the container 1.
- An introduction pipe 3 for introducing the previous insulating oil 5 and an injection pipe 4 connected to the lower part of the container 1 for pouring the adsorbent-treated insulating oil 6 into the electrical equipment are provided.
- the adsorbent 2 may be of any type as long as it adsorbs di-benzyl disulfide at room temperature, but alumina or activated charcoal is used here. Alumina and activated charcoal do not affect the hydrocarbons, which are the main components of the insulating oil 5 before the adsorbent treatment, but adsorb di-benzyl disulfide at room temperature and remove it from the insulating oil 5 described above. can do. Therefore, the adsorbent-treated insulating oil 6 does not contain di-benzyl di-sulfide.
- dibenzyl disulfide adsorbed on the adsorbent 2 can be removed with a solvent such as toluene or benzene.
- a solvent such as toluene or benzene.
- the dibenzyl disulfide adsorbed on the adsorbent 2 is dissolved in toluene or benzene, and the adsorbent 2 recovers the function of adsorbing the dibenzyl disulfide. To do. By this treatment, the adsorbent 2 can be used repeatedly.
- the insulating oil 5 containing the dibenzyl disulfide before the adsorbent treatment is introduced into the container 1 through the introduction pipe 3.
- the introduced insulating oil 5 before the adsorbent treatment is in contact with the adsorbent 2, and the dibenzyl disulfide contained in the insulating oil 5 before the adsorbent treatment in the contacting process is the adsorbent. 2 is adsorbed.
- the adsorbent-treated insulating oil 6 obtained through this treatment can be injected into the electrical equipment through the introduction pipe 4.
- the adsorbent treatment reduces the function of adsorbing the di-benzyl di-sulfide, or when the di-benzyl di-sulfide removing device 10 is not in operation, By washing the agent 2 with a solvent that dissolves dibenzyl disulfide such as toluene or benzene, the adsorbing function described above can be recovered.
- FIG. 2 is a diagram showing an analysis result of the insulating oil before the adsorbent treatment by the di-benzyl disulfide removing apparatus 10, that is, the insulating oil 5 before the adsorbent treatment.
- FIG. 3 is a diagram showing an analysis result of the insulating oil after the adsorbent treatment by the di-benzyl disulfide removing apparatus 10, that is, the insulating oil 6 treated with the adsorbent.
- the adsorbent-treated insulating oil 6 contains dibenzyl disulfide, which is a causative substance for depositing copper sulfide on the surface of an insulating material made of cellulose, which is a part of the constituent material of electrical equipment. Even if this transformer is used by injecting this adsorbent-treated insulating oil 6 into a transformer having a coil made of copper and insulating paper wound around the coil by the injection pipe 4, insulation Since copper sulfide does not deposit on the paper and the dielectric strength between the coils does not decrease, a highly reliable transformer can be operated.
- the hydrocarbon as the main component of the insulating oil 6 that has been subjected to the adsorbent treatment does not deteriorate as compared with the insulating oil 5 before the adsorbent treatment.
- the insulating oil is brought into contact with the adsorbent that adsorbs di-benzyl disulfide such as alumina or activated charcoal, and the di-benzyl. Since disulfide is adsorbed and removed, dibenzyl disulfide can be removed without degrading the insulating oil with a compact device that does not require a heater or stirring device. Further, by washing the adsorbent with a solvent that dissolves dibenzyl disulfide such as toluene or benzene, the function of adsorbing the dibenzyl disulfide of the adsorbent can be recovered.
- adsorbent that adsorbs di-benzyl disulfide such as alumina or activated charcoal
- the dibenzyl disulfide removal method and the dibenzyl disulfide removal apparatus remove dibenzyl disulfide contained in insulating oil used in electrical equipment.
- the dibenzyl disulfide removal method and the dibenzyl disulfide removal apparatus are suitable.
Abstract
This invention provides a method for removing dibenzyl disulfide, which can remove dibenzyl disulfide from an insulating oil to be injected into an electrical equipment at room temperature with a compact apparatus. The method comprises a dibenzyl disulfide removing step of bringing an insulating oil to be injected into an electric equipment into contact with an adsorbent, which adsorbs dibenzyl disulfide at room temperature, to remove dibenzyl disulfide contained in the insulating oil, and an insulating oil injection step of injecting the insulating oil, from which the dibenzyl disulfide has been removed, into the electric equipment.
Description
この発明は、電気機器に使用される絶縁油に含まれるジ・ベンジル・ジ・スルフィドを除去するジ・ベンジル・ジ・スルフィド除去方法およびジ・ベンジル・ジ・スルフィド除去装置に関するものである。
The present invention relates to a dibenzyl disulfide removal method and a dibenzyl disulfide removal apparatus for removing dibenzyl disulfide contained in insulating oil used in electrical equipment.
電気機器に使用される絶縁油は、鎖状飽和炭化水素であるパラフィン、環状飽和炭化水素であるナフテンおよびベンゼン環のような環内に二重結合を有する芳香族炭化水素であるアロマティックの３種類の炭化水素を主成分とし、それ以外に少量の硫黄化合物、窒素化合物および酸素化合物などを含んでいる。このうち硫黄化合物が原因で、電気機器の構成材料の一部である銅、銀および銅合金の表面に硫化銅や硫化銀などの化合物が生成されることが知られている。これら硫化金属は半導体であり、接点表面への生成による接点部の過熱、金属表面から脱離により絶縁油中に浮遊して絶縁耐力の低下を引き起こす等、機器の信頼性を損ねることが知られている。
Insulating oils used in electrical equipment are aromatic saturated hydrocarbons such as paraffin, which is a chain saturated hydrocarbon, naphthene, which is a cyclic saturated hydrocarbon, and aromatic hydrocarbons having a double bond in a ring such as a benzene ring. It contains various types of hydrocarbons as its main component and contains small amounts of sulfur compounds, nitrogen compounds and oxygen compounds. Among these, it is known that compounds such as copper sulfide and silver sulfide are generated on the surfaces of copper, silver and copper alloys which are a part of constituent materials of electrical equipment due to sulfur compounds. These metal sulfides are semiconductors, and they are known to impair the reliability of equipment, such as overheating of the contact part due to generation on the contact surface, floating in insulating oil due to detachment from the metal surface, and causing a decrease in dielectric strength. ing.
金属表面への硫化物生成に関しては、これまで種々の検討がなされており、例えば特許文献１によれば、絶縁油を電気機器に注入する前に別の容器を設けて、容器内には粉状の銅または銅化合物あるいは銅合金が収納されており、絶縁油中の硫黄化合物と反応して硫化銅を生成させることで、絶縁油中の有害な硫黄化合物を除去する技術が開示されている。
Various studies have been made so far on the generation of sulfide on the metal surface. For example, according to Patent Document 1, another container is provided before injecting the insulating oil into the electric equipment, and the container contains powder. A technology for removing harmful sulfur compounds in insulating oil by producing copper sulfide by reacting with sulfur compounds in insulating oil is disclosed. .
ところで、上述の硫化銅は金属表面に生成されるが、近年、電気機器の構成材料の一部であるセルロースからなる絶縁物表面にも硫化銅が析出することが明らかとなってきた。例えば、油入変圧器の場合、セルロースからなるコイル絶縁紙に硫化銅が析出し、コイル間の絶縁耐力が低下した結果、コイル間で絶縁破壊が生じ、機器故障に至る。
By the way, although the above-mentioned copper sulfide is generated on the metal surface, in recent years, it has become clear that copper sulfide is also deposited on the surface of an insulator made of cellulose which is a part of the constituent material of electrical equipment. For example, in the case of an oil-filled transformer, copper sulfide is deposited on a coil insulating paper made of cellulose, resulting in a decrease in dielectric strength between the coils. As a result, dielectric breakdown occurs between the coils, leading to equipment failure.
すなわち、絶縁油中にジ・ベンジル・ジ・スルフィドという特定の硫黄化合物が含まれ、電気機器が銅とセルロースからなる絶縁物とが絶縁油に接触する構造を有していると、絶縁物表面に硫化銅が析出する。
That is, when the insulating oil contains a specific sulfur compound called di-benzyl di-sulfide, and the electrical equipment has a structure in which an insulating material made of copper and cellulose contacts the insulating oil, the surface of the insulating material Copper sulfide precipitates on the surface.
ジ・ベンジル・ジ・スルフィドは特許文献１に開示される技術でも除去可能であるが、この技術でジ・ベンジル・ジ・スルフィドを除去する場合、金属表面に硫化物を生成させるには１５０℃程度まで加熱する必要があり、この加熱により絶縁油が劣化する恐れがあるという問題点があった。また、加熱のためのヒーターおよびその制御装置、粉状金属を絶縁油中に浮遊させるための攪拌装置などの付属機材も必要であり、装置が複雑化、大型化するという問題点があった。
Dibenzyl disulfide can also be removed by the technique disclosed in Patent Document 1, but when dibenzyl disulfide is removed by this technique, 150 ° C. is required to generate sulfide on the metal surface. There is a problem that it is necessary to heat to the extent, and there is a possibility that the insulating oil is deteriorated by this heating. In addition, a heater for heating and its control device, and accessory equipment such as a stirrer for suspending the powdered metal in the insulating oil are necessary, which causes a problem that the device becomes complicated and large.
本発明は上記に鑑みてなされたもので、ジ・ベンジル・ジ・スルフィドを常温でコンパクトな装置で除去するジ・ベンジル・ジ・スルフィド除去方法およびジ・ベンジル・ジ・スルフィド除去装置を得ることを目的とする。
The present invention has been made in view of the above, and obtains a dibenzyl disulfide removal method and a dibenzyl disulfide removal apparatus that remove dibenzyl disulfide with a compact apparatus at room temperature. With the goal.
上記目的を達成するため、この発明にかかるジ・ベンジル・ジ・スルフィド除去方法は、電気機器に注入する絶縁油を、ジ・ベンジル・ジ・スルフィドを吸着する吸着剤に接触させることによって、前記絶縁油に含まれるジ・ベンジル・ジ・スルフィドを除去するジ・ベンジル・ジ・スルフィド除去工程と、前記ジ・ベンジル・ジ・スルフィドを除去した絶縁油を前記電気機器に注入する絶縁油注入工程と、を含むことを特徴とする。
In order to achieve the above object, the dibenzyl disulfide removal method according to the present invention comprises contacting the insulating oil injected into the electrical equipment with an adsorbent that adsorbs dibenzyl disulfide. Di-benzyl di-sulfide removing step for removing di-benzyl di-sulfide contained in insulating oil, and insulating-oil injecting step for injecting the insulating oil from which di-benzyl di-sulfide has been removed to the electrical equipment It is characterized by including these.
この発明によれば、ジ・ベンジル・ジ・スルフィドを常温でコンパクトな装置で除去することができるという効果を有する。
According to the present invention, there is an effect that dibenzyl disulfide can be removed with a compact apparatus at room temperature.
１ 容器
２ 吸着剤
３ 導入管
４ 注入配管
５ 吸着剤処理前の絶縁油
６ 吸着剤処理された絶縁油
１０ ジ・ベンジル・ジ・スルフィド除去装置 DESCRIPTION OFSYMBOLS 1 Container 2 Adsorbent 3 Introducing pipe 4 Injection pipe 5 Insulating oil before adsorbent treatment 6 Insulated oil treated with adsorbent 10 Dibenzyl disulfide removal device
２ 吸着剤
３ 導入管
４ 注入配管
５ 吸着剤処理前の絶縁油
６ 吸着剤処理された絶縁油
１０ ジ・ベンジル・ジ・スルフィド除去装置 DESCRIPTION OF
以下に添付図面を参照して、この発明にかかるジ・ベンジル・ジ・スルフィド除去方法およびジ・ベンジル・ジ・スルフィド除去装置の好適な実施の形態を詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。
Hereinafter, preferred embodiments of a dibenzyl disulfide removing method and a dibenzyl disulfide removing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.
実施の形態．
本発明の実施の形態のジ・ベンジル・ジ・スルフィド除去方法およびジ・ベンジル・ジ・スルフィド除去装置が対象とする電気機器は、絶縁油を入れた容器とその絶縁油中に浸漬された銅や銅合金を有する銅部品とセルロースからなる絶縁物を備えるものである。例えば、銅からなるコイルとそのコイルに巻かれた絶縁紙とを有する変圧器である。また絶縁油は例えば日本工業規格ＪＩＳ Ｃ ２３２０で示されるような絶縁油である。 Embodiment.
The electrical equipment targeted by the di-benzyl di-sulfide removing method and the di-benzyl di-sulfide removing apparatus according to the embodiment of the present invention includes a container containing insulating oil and copper immersed in the insulating oil. And a copper part having a copper alloy and an insulator made of cellulose. For example, a transformer having a coil made of copper and insulating paper wound around the coil. The insulating oil is, for example, an insulating oil as shown in Japanese Industrial Standard JIS C 2320.
本発明の実施の形態のジ・ベンジル・ジ・スルフィド除去方法およびジ・ベンジル・ジ・スルフィド除去装置が対象とする電気機器は、絶縁油を入れた容器とその絶縁油中に浸漬された銅や銅合金を有する銅部品とセルロースからなる絶縁物を備えるものである。例えば、銅からなるコイルとそのコイルに巻かれた絶縁紙とを有する変圧器である。また絶縁油は例えば日本工業規格ＪＩＳ Ｃ ２３２０で示されるような絶縁油である。 Embodiment.
The electrical equipment targeted by the di-benzyl di-sulfide removing method and the di-benzyl di-sulfide removing apparatus according to the embodiment of the present invention includes a container containing insulating oil and copper immersed in the insulating oil. And a copper part having a copper alloy and an insulator made of cellulose. For example, a transformer having a coil made of copper and insulating paper wound around the coil. The insulating oil is, for example, an insulating oil as shown in Japanese Industrial Standard JIS C 2320.
図１は、この発明による実施の形態のジ・ベンジル・ジ・スルフィド除去装置の構成を示す図である。図１において、ジ・ベンジル・ジ・スルフィド除去装置１０は、容器１と、容器１内に収容されている吸着剤２と、容器１の上部からジベンジルスルフィド除去装置１０で吸着剤処理を行う前の絶縁油５を導入する導入管３と、吸着剤処理された絶縁油６を電気機器に注ぐために容器１の下部に接続されている注入配管４とを備える。
FIG. 1 is a diagram showing a configuration of a di-benzyl di-sulfide removing apparatus according to an embodiment of the present invention. In FIG. 1, a dibenzyl disulfide removing apparatus 10 performs an adsorbent treatment with a container 1, an adsorbent 2 accommodated in the container 1, and the dibenzyl sulfide removing apparatus 10 from above the container 1. An introduction pipe 3 for introducing the previous insulating oil 5 and an injection pipe 4 connected to the lower part of the container 1 for pouring the adsorbent-treated insulating oil 6 into the electrical equipment are provided.
ここで、吸着剤２は、ジ・ベンジル・ジ・スルフィドを常温で吸着する吸着剤であれば種類は問わないが、ここではアルミナまたは活生炭を用いる。アルミナおよび活生炭は、吸着剤処理前の絶縁油５の主成分である炭化水素には影響を及ぼさないが、ジ・ベンジル・ジ・スルフィドを常温で吸着して前記する絶縁油５から除去することができる。従って、吸着剤処理された絶縁油６はジ・ベンジル・ジ・スルフィドを含有していない。
Here, the adsorbent 2 may be of any type as long as it adsorbs di-benzyl disulfide at room temperature, but alumina or activated charcoal is used here. Alumina and activated charcoal do not affect the hydrocarbons, which are the main components of the insulating oil 5 before the adsorbent treatment, but adsorb di-benzyl disulfide at room temperature and remove it from the insulating oil 5 described above. can do. Therefore, the adsorbent-treated insulating oil 6 does not contain di-benzyl di-sulfide.
また、吸着剤２に吸着したジ・ベンジル・ジ・スルフィドは、トルエンまたはベンゼンなどの溶剤で除去することができる。ジ・ベンジル・ジ・スルフィド除去装置１０を使用して、吸着剤２のジ・ベンジル・ジ・スルフィドを吸着する機能が低下したとき、吸着剤２をトルエンまたはベンゼンなどのジ・ベンジル・ジ・スルフィドを溶解する溶剤で洗浄すると、吸着剤２に吸着していたジ・ベンジル・ジ・スルフィドはトルエンまたはベンゼン中に溶解し、吸着剤２はジ・ベンジル・ジ・スルフィドを吸着する機能を回復する。この処理により、吸着剤２は繰り返し使用されることが可能となる。
Also, dibenzyl disulfide adsorbed on the adsorbent 2 can be removed with a solvent such as toluene or benzene. When the function of adsorbing the dibenzyl disulfide of the adsorbent 2 is reduced by using the dibenzyl disulfide removing device 10, the adsorbent 2 is removed from the dibenzyl dibenzene such as toluene or benzene. When washed with a solvent that dissolves sulfide, the dibenzyl disulfide adsorbed on the adsorbent 2 is dissolved in toluene or benzene, and the adsorbent 2 recovers the function of adsorbing the dibenzyl disulfide. To do. By this treatment, the adsorbent 2 can be used repeatedly.
次に、このように構成されるジ・ベンジル・ジ・スルフィド除去装置１０によって絶縁油からジ・ベンジル・ジ・スルフィドを除去する動作を説明する。まず、ジ・ベンジル・ジ・スルフィドを含んでいる吸着剤処理前の絶縁油５は、導入管３を通して容器１内に導入される。導入された吸着剤処理前の絶縁油５は、吸着剤２と接触し、この接触している過程において吸着剤処理前の絶縁油５が含有していたジ・ベンジル・ジ・スルフィドが吸着剤２に吸着される。この処理を経て得られた吸着剤処理された絶縁油６は、導入配管４を通して電気機器に注入可能となる。
Next, the operation of removing dibenzyl disulfide from the insulating oil by the dibenzyl disulfide removing apparatus 10 configured as described above will be described. First, the insulating oil 5 containing the dibenzyl disulfide before the adsorbent treatment is introduced into the container 1 through the introduction pipe 3. The introduced insulating oil 5 before the adsorbent treatment is in contact with the adsorbent 2, and the dibenzyl disulfide contained in the insulating oil 5 before the adsorbent treatment in the contacting process is the adsorbent. 2 is adsorbed. The adsorbent-treated insulating oil 6 obtained through this treatment can be injected into the electrical equipment through the introduction pipe 4.
この吸着剤処理が行われることによって吸着剤２のジ・ベンジル・ジ・スルフィドを吸着する機能が低下してきたとき、ジ・ベンジル・ジ・スルフィド除去装置１０が稼動していない時などに、吸着剤２をトルエンまたはベンゼンなどのジ・ベンジル・ジ・スルフィドを溶解する溶剤で洗浄することによって、前記する吸着する機能を回復させることができる。
When the adsorbent treatment reduces the function of adsorbing the di-benzyl di-sulfide, or when the di-benzyl di-sulfide removing device 10 is not in operation, By washing the agent 2 with a solvent that dissolves dibenzyl disulfide such as toluene or benzene, the adsorbing function described above can be recovered.
次に、ジ・ベンジル・ジ・スルフィド除去装置１０によって吸着剤処理される前後の絶縁油についてのジ・ベンジル・ジ・スルフィドの分析結果を示す。図２はジ・ベンジル・ジ・スルフィド除去装置１０によって吸着剤処理を行う前の絶縁油、すなわち吸着剤処理前の絶縁油５の分析結果を示す図である。図３はジ・ベンジル・ジ・スルフィド除去装置１０によって吸着剤処理を行った後の絶縁油、すなわち吸着剤処理された絶縁油６の分析結果を示す図である。本分析では、ガスクロマトグフラフ質量分析法ＧＣ－ＭＳ（Ｇａｓ Ｃｈｒｏｍａｔｏｇｒａｐｈ－Ｍａｓｓ Ｓｐｅｃｔｒｏｍｅｔｒｙ）を用いた。図２において、吸着剤処理前の絶縁油５に、ジ・ベンジル・ジ・スルフィドのピークが観測された。一方、図3において、吸着剤処理された絶縁油６にはジ・ベンジル・ジ・スルフィドのピークは観測されなかった。このことにより、吸着剤処理前の絶縁油５に含まれていたジ・ベンジル・ジ・スルフィドが吸着剤２の吸着剤処理によって吸着・除去されたことがわかる。
Next, the analysis results of dibenzyl disulfide for the insulating oil before and after being treated with the adsorbent by the dibenzyl disulfide removing apparatus 10 will be shown. FIG. 2 is a diagram showing an analysis result of the insulating oil before the adsorbent treatment by the di-benzyl disulfide removing apparatus 10, that is, the insulating oil 5 before the adsorbent treatment. FIG. 3 is a diagram showing an analysis result of the insulating oil after the adsorbent treatment by the di-benzyl disulfide removing apparatus 10, that is, the insulating oil 6 treated with the adsorbent. In this analysis, gas chromatographic mass spectrometry GC-MS (Gas Chromatograph-Mass Spectrometry) was used. In FIG. 2, a dibenzyl disulfide peak was observed in the insulating oil 5 before the adsorbent treatment. On the other hand, in FIG. 3, no dibenzyl disulfide peak was observed in the insulating oil 6 treated with the adsorbent. This shows that dibenzyl disulfide contained in the insulating oil 5 before the adsorbent treatment was adsorbed and removed by the adsorbent treatment of the adsorbent 2.
このように、吸着剤処理された絶縁油６には、電気機器の構成材料の一部であるセルロースからなる絶縁物表面に硫化銅を析出させる原因物質のジ・ベンジル・ジ・スルフィドが含まれていないため、この吸着剤処理された絶縁油６を注入配管4により銅からなるコイルとそのコイルに巻かれた絶縁紙とを有する変圧器に注入して該変圧器を使用しても、絶縁紙上に硫化銅が析出することなく、コイル間の絶縁耐力が低下しないので、信頼性の高い変圧器の運転が可能となる。また、常温で吸着剤処理を行っているので、吸着剤処理された絶縁油６の主成分の炭化水素は、吸着剤処理前の絶縁油５と比較して劣化することはない。
Thus, the adsorbent-treated insulating oil 6 contains dibenzyl disulfide, which is a causative substance for depositing copper sulfide on the surface of an insulating material made of cellulose, which is a part of the constituent material of electrical equipment. Even if this transformer is used by injecting this adsorbent-treated insulating oil 6 into a transformer having a coil made of copper and insulating paper wound around the coil by the injection pipe 4, insulation Since copper sulfide does not deposit on the paper and the dielectric strength between the coils does not decrease, a highly reliable transformer can be operated. In addition, since the adsorbent treatment is performed at normal temperature, the hydrocarbon as the main component of the insulating oil 6 that has been subjected to the adsorbent treatment does not deteriorate as compared with the insulating oil 5 before the adsorbent treatment.
以上のように、本発明の実施の形態によれば、アルミナまたは活生炭などジ・ベンジル・ジ・スルフィドを吸着する吸着剤に絶縁油を接触させて該絶縁油に含まれるジ・ベンジル・ジ・スルフィドを吸着・除去するようにしたので、ヒーターや攪拌装置を必要としないコンパクトな装置で絶縁油を劣化させることなくジ・ベンジル・ジ・スルフィドを除去できる。また、この吸着剤をトルエンまたはベンゼンなどのジ・ベンジル・ジ・スルフィドを溶解する溶媒で洗浄することによって、吸着剤のジ・ベンジル・ジ・スルフィドを吸着する機能を回復させることができる。
As described above, according to the embodiment of the present invention, the insulating oil is brought into contact with the adsorbent that adsorbs di-benzyl disulfide such as alumina or activated charcoal, and the di-benzyl. Since disulfide is adsorbed and removed, dibenzyl disulfide can be removed without degrading the insulating oil with a compact device that does not require a heater or stirring device. Further, by washing the adsorbent with a solvent that dissolves dibenzyl disulfide such as toluene or benzene, the function of adsorbing the dibenzyl disulfide of the adsorbent can be recovered.
以上のように、この発明にかかるジ・ベンジル・ジ・スルフィド除去方法およびジ・ベンジル・ジ・スルフィド除去装置は、電気機器に使用される絶縁油に含まれるジ・ベンジル・ジ・スルフィドを除去するジ・ベンジル・ジ・スルフィド除去方法およびジ・ベンジル・ジ・スルフィド除去装置に適用して好適である。
As described above, the dibenzyl disulfide removal method and the dibenzyl disulfide removal apparatus according to the present invention remove dibenzyl disulfide contained in insulating oil used in electrical equipment. The dibenzyl disulfide removal method and the dibenzyl disulfide removal apparatus are suitable.
Claims (7)
- 電気機器に注入する絶縁油を、ジ・ベンジル・ジ・スルフィドを吸着する吸着剤に接触させることによって、前記絶縁油に含まれるジ・ベンジル・ジ・スルフィドを除去するジ・ベンジル・ジ・スルフィド除去工程と、
前記ジ・ベンジル・ジ・スルフィドを除去した絶縁油を前記電気機器に注入する絶縁油注入工程と、
を含むことを特徴とするジ・ベンジル・ジ・スルフィド除去方法。 Di-benzyl di-sulfide removes di-benzyl di-sulfide contained in said insulating oil by contacting the insulating oil injected into the electrical equipment with an adsorbent that adsorbs di-benzyl di-sulfide A removal step;
Insulating oil injection step of injecting the insulating oil from which the di-benzyl di-sulfide has been removed into the electrical equipment;
A method for removing di-benzyl di-sulfide, comprising: - 前記電気機器は銅とセルロースからなる絶縁材料とが絶縁油に接触する構造を有することを特徴とする請求項１に記載のジ・ベンジル・ジ・スルフィド除去方法。 The method for removing di-benzyl di-sulfide according to claim 1, wherein the electrical device has a structure in which an insulating material made of copper and cellulose is in contact with insulating oil.
- 前記吸着剤はアルミナまたは活生炭であることを特徴とする請求項１に記載のジ・ベンジル・ジ・スルフィド除去方法。 The method for removing di-benzyl di-sulfide according to claim 1, wherein the adsorbent is alumina or activated charcoal.
- 前記絶縁油注入工程の後、ジ・ベンジル・ジ・スルフィドを吸着する機能が低下した前記吸着剤を、ジ・ベンジル・ジ・スルフィドを溶解する溶媒で洗浄することによって、前記吸着する機能を回復させる、ジ・ベンジル・ジ・スルフィド吸着機能回復工程をさらに含むことを特徴とする請求項１～３の何れか1つに記載のジ・ベンジル・ジ・スルフィド除去方法。 After the insulating oil injection step, the adsorption function is restored by washing the adsorbent, which has reduced the ability to adsorb dibenzyl disulfide, with a solvent that dissolves dibenzyl disulfide. The dibenzyl disulfide removal method according to any one of claims 1 to 3, further comprising a step of recovering the dibenzyl disulfide adsorption function.
- 前記溶媒はトルエンまたはベンゼンであることを特徴とする請求項４に記載のジ・ベンジル・ジ・スルフィド除去方法。 The method for removing di-benzyl di-sulfide according to claim 4, wherein the solvent is toluene or benzene.
- 電気機器に注入する絶縁油から該絶縁油に含まれるジ・ベンジル・ジ・スルフィドを電気機器に注入する前に除去するジ・ベンジル・ジ・スルフィド除去装置であって、
絶縁油を収納する容器と、前記絶縁油と接触するように前記容器に収容され、前記絶縁油に含まれるジ・ベンジル・ジ・スルフィドを吸着する吸着剤と、
を備えることを特徴とするジ・ベンジル・ジ・スルフィド除去装置。 A di-benzyl di-sulfide removing device that removes di-benzyl di-sulfide contained in the insulating oil before pouring into the electric device from the insulating oil injected into the electric device,
A container for storing insulating oil; and an adsorbent that is accommodated in the container so as to be in contact with the insulating oil and adsorbs di-benzyl disulfide contained in the insulating oil;
A dibenzyl disulfide removal apparatus comprising: - 前記吸着剤はアルミナまたは活生炭であることを特徴とする請求項６に記載のジ・ベンジル・ジ・スルフィド除去装置。 The di-benzyl di-sulfide removing apparatus according to claim 6, wherein the adsorbent is alumina or activated charcoal.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8305179B2 (en) | 2008-09-26 | 2012-11-06 | Mitsubishi Electric Corporation | Oil immersed electrical apparatus |
| CN105974042A (en) * | 2016-07-20 | 2016-09-28 | 黑龙江省电力科学研究院 | Reversed phase high performance liquid chromatography method for determining content of dibenzyl disulfide in insulating oil |
| CN108410497A (en) * | 2018-05-03 | 2018-08-17 | 湖北工程学院 | A kind of application of alkaline chitosan microballoon in mineral oil |
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| JPS57183010A (en) * | 1981-05-08 | 1982-11-11 | Toshiba Corp | Oil-immersed electrical machinery and apparatus |
| JP2001006946A (en) * | 1999-06-21 | 2001-01-12 | Mitsubishi Electric Corp | Evaluation method of electric insulation oil and method of analyzing hetero compound including electric insulation oil |
| JP2005223104A (en) * | 2004-02-05 | 2005-08-18 | Tm T & D Kk | Method of diagnosing and suppressing electrostatic charge of oil-filled electrical apparatus |
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| JPS56161624A (en) * | 1980-05-16 | 1981-12-12 | Toshiba Corp | Oil-immersed electric machine |
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| JP2001006946A (en) * | 1999-06-21 | 2001-01-12 | Mitsubishi Electric Corp | Evaluation method of electric insulation oil and method of analyzing hetero compound including electric insulation oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8305179B2 (en) | 2008-09-26 | 2012-11-06 | Mitsubishi Electric Corporation | Oil immersed electrical apparatus |
| CN105974042A (en) * | 2016-07-20 | 2016-09-28 | 黑龙江省电力科学研究院 | Reversed phase high performance liquid chromatography method for determining content of dibenzyl disulfide in insulating oil |
| CN108410497A (en) * | 2018-05-03 | 2018-08-17 | 湖北工程学院 | A kind of application of alkaline chitosan microballoon in mineral oil |
| CN108410497B (en) * | 2018-05-03 | 2020-03-27 | 湖北工程学院 | Application of alkaline chitosan microspheres in mineral oil |
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