CN105207090A - Electrified pressure leakage blocking device and method for gas leakage of sulfur hexafluoride electrical equipment - Google Patents

Electrified pressure leakage blocking device and method for gas leakage of sulfur hexafluoride electrical equipment Download PDF

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Publication number
CN105207090A
CN105207090A CN201510586733.2A CN201510586733A CN105207090A CN 105207090 A CN105207090 A CN 105207090A CN 201510586733 A CN201510586733 A CN 201510586733A CN 105207090 A CN105207090 A CN 105207090A
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CN
China
Prior art keywords
electrical equipment
sulfur hexafluoride
cut
hexafluoride electrical
leakage
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Pending
Application number
CN201510586733.2A
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Chinese (zh)
Inventor
周舟
龚尚昆
万涛
周年光
冯兵
陶靖
李臻
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
State Grid Hunan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
State Grid Hunan Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd, State Grid Hunan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510586733.2A priority Critical patent/CN105207090A/en
Publication of CN105207090A publication Critical patent/CN105207090A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an electrified pressure leakage blocking device and method for gas leakage of sulfur hexafluoride electrical equipment. The device comprises a cutoff valve arranged at the leakage point of the sulfur hexafluoride electrical equipment, an insulating fixing rod used for moving the cutoff valve to the leakage point of the sulfur hexafluoride electrical equipment and an insulating glue-injecting gun used for fixing the cutoff valve to the leakage point of the sulfur hexafluoride electrical equipment. The device and method have the advantages that when the leakage point of the sulfur hexafluoride electrical equipment is electrified or the safe distance between a leakage blocking maintainer and the electrified portion does not meet requirements, by the adoption of the device and method, in maintaining, it is unnecessary to power off the sulfur hexafluoride electrical equipment in leakage, pressure reduction or recycling of sulfur hexafluoride is not needed, maintaining is convenient and rapid, the device and method are suitable for electrical equipment made of metal, ceramic, cement and other various materials, on the premise that personal safety of the leakage blocking maintainer is ensured, shutdown maintaining time of an electrical system is shortened, and power-supply reliability of a power net is improved.

Description

A kind of charged tape-pressure leakage clogging device of sulfur hexafluoride electrical equipment Leakage Gas and method
Technical field
The present invention relates to power system device maintenance field, the particularly charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas and method.
Background technology
Along with greatly developing of power industry, sulphur hexafluoride is because its good electric property is widely used in high voltage electric equipment.But because equipment is in material, manufacturing process and installation, the Leakage Gas problem of sulfur hexafluoride electrical equipment at home so that the world all very general.
The repair method commonly used for the sulfur hexafluoride electrical equipment that there is leakage at present changes in whole or in part, but this method needs equipment, even circuit to have a power failure for a long time, can have a negative impact to the safe and stable operation of electrical network and social and economic benefits.Other conventional blocking methods also have: repair welding method, steel band method, fixture injecting glue method, gluing connection.Wherein repair welding method needs charger power failure step-down equally; Steel band method, fixture injecting glue method complicated operation, and need particular manufacturing craft be customized; Glue bond rule realizes leak stopping by using adhesive directly to clog equipment leakage position, and because in equipment, sulphur hexafluoride has certain pressure, adhesive solidification needs the time again, causes its success rate lower.So above-mentioned blocking method be not suitable for power system device service work.Therefore the service work how completing leakage equipment quickly and easily under condition with pressure has become the difficult problem that electric power system is badly in need of solving." the bonding plugging type tape-pressure leakage clogging device of water conservancy diversion " (application number 201410580187.7) of my unit application describes a kind of effective pressurized leaking stoppage method, but be only limitted to the process of electric equipment not charged position Leakage Gas, the pressure sealing at the charged position of electric equipment still cannot carry out.
Summary of the invention
In order to solve the technical problem of current sulfur hexafluoride electrical equipment leak stopping inconvenience, the invention provides one and can realize not having a power failure and leak stopping conveniently sulfur hexafluoride electrical equipment Leakage Gas tape-pressure leakage clogging device.
In order to realize above-mentioned technical purpose, technical scheme of the present invention is, the charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas, comprise be arranged at sulfur hexafluoride electrical equipment leakage point place cut-out cock, for cut-out cock being moved to the insulated fixing rod at sulfur hexafluoride electrical equipment leakage point place and being used for cut-out cock to be fixed on the insulation colloid-injecting gun at sulfur hexafluoride electrical equipment leakage point place, one end of described cut-out cock is sealingly fastened in electric equipment leak source by adhesive, and the internal diameter of cut-out cock is not less than the size of leakage point.
The described charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas, described cut-out cock is the one in gate valve, break valve, butterfly valve, ball valve, plug valve.
The described charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas, described adhesive is the one in epoxy resin, phenolic resins, acrylic resin, polyurethane resin, polyether resin, polyimide resin, amino resins or unsaturated polyester resin, or above-mentioned resin material modified in one, or a kind of and mechanics in above-mentioned resin strengthens the mixture of granular materials.
The described charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas, cut-out cock is coated with waterproof ageing-resistant material, and described waterproof ageing-resistant material is silica gel, silicon rubber or fluorine silicon materials.
The described charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas, the compressive resistance of described cut-out cock is not less than the rated pressure of the electric equipment of leakage.
The described charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas, described insulated fixing rod comprises the hand handle gripped for operator, for the gripper shape of mobile cut-out cock clamping part with for being connected hand the shaft with clamping part, described hand handle, shaft is connected successively with clamping part, insulated fixing rod is provided with the operating means for controlling clamping part folding, described operating means comprises operator and points the whippletree pressed with movement, two supporting rods being flexibly connected clamping part each forequarter respectively, and connect the montant of whippletree and supporting rod, described whippletree is arranged at hand place, one end of montant connects whippletree, the other end connects two supporting rods through rod body movement.
The described charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas, described insulation colloid-injecting gun comprises for hand-held gun stock, for the gum-injecting port of plastic emitting and the trigger for controlling injecting glue, described trigger is fixed in the middle part of gun stock, and described gum-injecting port is arranged at gun stock front end.
The described charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas, described insulated fixing rod and insulation colloid-injecting gun are made by insulating material.
The charged pressurized leaking stoppage method of a kind of sulfur hexafluoride electrical equipment Leakage Gas, adopts the arbitrary described device of claim 1-8, comprises the following steps:
Step one: open cut-out cock, uses the clamping part of insulated fixing rod to clamp cut-out cock, cut-out cock is moved to sulfur hexafluoride electrical equipment leakage point place;
Step 2: use insulation colloid-injecting gun to cut-out cock and sulfur hexafluoride electrical equipment leakage point contact portion injection adhesive, and wait for that adhesive solidification is stablized;
Step 3: cut-out cock is closed, completes Process of Leaking Stoppage.
The described charged pressurized leaking stoppage method of a kind of sulfur hexafluoride electrical equipment Leakage Gas, before execution step one, first applies waterproof ageing-resistant material on cut-out cock.
Technique effect of the present invention is, when for sulfur hexafluoride electrical equipment leak position, charged or leak stopping maintainer and charged position safe distance do not meet the demands, adopt the present invention to overhaul the sulfur hexafluoride electrical equipment that there is leakage not need to have a power failure, do not need step-down, or recovery sulfur hexafluoride gas, inspection operation is convenient, fast, be applicable to the electric equipment of the various materials such as metal, pottery, cement, under the prerequisite guaranteeing leak stopping maintainer personal safety, save the electric power system interruption maintenance time, improve the power supply reliability of electrical network.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that cut-out cock of the present invention is fixed on leakage point;
Fig. 2 is the structural representation of insulated fixing rod of the present invention;
Fig. 3 is that the present invention is insulated the structural representation of colloid-injecting gun.
Wherein 1 is sulfur hexafluoride electrical equipment matrix, and 2 is adhesive, and 3 is cut-out cock, and 4 is leakage point, and 5 is hand handle, and 6 is clamping part, and 7 is shaft, and 8 is whippletree, and 9 is montant, and 10 is supporting rod, and 11 is gun stock, and 12 is gum-injecting port, and 13 is trigger.
Embodiment
See Fig. 1, Fig. 2, apparatus of the present invention comprise be arranged at sulfur hexafluoride electrical equipment leakage point place cut-out cock, for cut-out cock being moved to the insulated fixing rod at sulfur hexafluoride electrical equipment leakage point place and being used for cut-out cock to be fixed on the insulation colloid-injecting gun at sulfur hexafluoride electrical equipment leakage point place, one end of cut-out cock is sealingly fastened in electric equipment leak source by adhesive, and the internal diameter of cut-out cock is not less than the size of leakage point.
Further, in order to adapt to various leak stopping needs, cut-out cock can choose the one in gate valve, break valve, butterfly valve, ball valve, plug valve.
Further, in order to require to adopt comparatively suitable adhesive according to different leak stopping, alternative adhesive is the one in epoxy resin, phenolic resins, acrylic resin, polyurethane resin, polyether resin, polyimide resin, amino resins or unsaturated polyester resin, or above-mentioned resin material modified in one, or a kind of and mechanics in above-mentioned resin strengthens the mixture of granular materials.
Further, in order to extend cut-out cock useful life as far as possible, cut-out cock is coated with waterproof ageing-resistant material, and waterproof ageing-resistant material is silica gel, silicon rubber or fluorine silicon materials.
Further, in order to ensure plugging effect, the compressive resistance of cut-out cock is not less than the rated pressure of the electric equipment of leakage.
Further, conveniently operating personnel use, insulated fixing rod comprise the hand that grips for operator, for mobile cut-out cock clamping part with for being connected hand the shaft with clamping part, hand is connected, shaft successively with clamping part.Insulated fixing rod is provided with the operating means for controlling clamping part folding, described operating means comprises operator and points the whippletree pressed with movement, two supporting rods being flexibly connected clamping part each forequarter respectively, and connect the montant of whippletree and supporting rod, described whippletree is arranged at hand place, one end of montant connects whippletree, and the other end connects two supporting rods through rod body movement.The operating means of insulated fixing rod both for cut-out cock being moved to sulfur hexafluoride electrical equipment leakage point place, simultaneously also for controlling the opening and closing of cut-out cock.
Further, in order to complete injecting glue operation, colloid-injecting gun comprises for hand-held gun stock, for the gum-injecting port of plastic emitting and the trigger for controlling injecting glue, trigger is fixed in the middle part of gun stock, and gum-injecting port is arranged at gun stock front end in insulation.
Further, in order to adapt to the use in charged situation, the shaft of insulated fixing rod and the gun stock of insulation colloid-injecting gun are made by insulating material.
The charged pressurized leaking stoppage method of sulfur hexafluoride electrical equipment Leakage Gas, adopts above-mentioned device, comprises the following steps:
Step one: open cut-out cock, uses the clamping part of insulated fixing rod to clamp cut-out cock, cut-out cock is moved to sulfur hexafluoride electrical equipment leakage point place;
Step 2: use insulation colloid-injecting gun to cut-out cock and sulfur hexafluoride electrical equipment leakage point contact portion injection adhesive, and wait for that adhesive solidification is stablized;
Step 3: cut-out cock is closed, completes Process of Leaking Stoppage.
Further, in order to extend device for plugging useful life, before execution step one, first on cut-out cock, apply waterproof ageing-resistant material.
Embodiment 1:
There is sulfur hexafluoride gas and leak in certain 220kV610 circuit breaker B phase central flange.First use the long insulated fixing rod of 3.5m to be placed on above leakage point by the ball valve of withstand voltage 1.6Mpa, internal diameter 19mm, sulfur hexafluoride gas flows out from the ball valve opened.
Then use 3m long insulation colloid-injecting gun that modified epoxy is coated in ball valve base portion.
After epoxy resin cure to be modified is complete, closes ball valve, take off insulated fixing rod, complete leak stopping.
Embodiment 2:
There is sulfur hexafluoride gas and leak in certain 110kV outdoor GIS512 circuit breaker A phase.First use the long insulated fixing rod of 2m to be placed on above leakage point by the dish valve of withstand voltage 1.0Mpa, internal diameter 22mm, sulfur hexafluoride gas flows out from the dish valve opened.
Then 2m long insulation colloid-injecting gun is used modified polyurethane resin to be coated in dish valve base portion.
After curable urethane resin to be modified is complete, closes ball valve, take off insulated fixing rod, complete leak stopping.

Claims (10)

1. the charged tape-pressure leakage clogging device of sulfur hexafluoride electrical equipment Leakage Gas, it is characterized in that, comprise be arranged at sulfur hexafluoride electrical equipment leakage point place cut-out cock, for cut-out cock being moved to the insulated fixing rod at sulfur hexafluoride electrical equipment leakage point place and being used for cut-out cock to be fixed on the insulation colloid-injecting gun at sulfur hexafluoride electrical equipment leakage point place, one end of described cut-out cock is sealingly fastened in electric equipment leak source by adhesive, and the internal diameter of cut-out cock is not less than the size of leakage point.
2. the charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas according to claim 1, is characterized in that, described cut-out cock is the one in gate valve, break valve, butterfly valve, ball valve, plug valve.
3. the charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas according to claim 1, it is characterized in that, described adhesive is the one in epoxy resin, phenolic resins, acrylic resin, polyurethane resin, polyether resin, polyimide resin, amino resins or unsaturated polyester resin, or above-mentioned resin material modified in one, or a kind of and mechanics in above-mentioned resin strengthens the mixture of granular materials.
4. the charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas according to claim 1, is characterized in that, cut-out cock is coated with waterproof ageing-resistant material, and described waterproof ageing-resistant material is silica gel, silicon rubber or fluorine silicon materials.
5. the charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas according to claim 1, is characterized in that, the compressive resistance of described cut-out cock is not less than the rated pressure of the electric equipment of leakage.
6. the charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas according to claim 1, it is characterized in that, described insulated fixing rod comprises the hand handle gripped for operator, for the gripper shape of mobile cut-out cock clamping part with for being connected hand the shaft with clamping part, described hand handle, shaft is connected successively with clamping part, insulated fixing rod is provided with the operating means for controlling clamping part folding, described operating means comprises operator and points the whippletree pressed with movement, two supporting rods being flexibly connected clamping part each forequarter respectively, and connect the montant of whippletree and supporting rod, described whippletree is arranged at hand place, one end of montant connects whippletree, the other end connects two supporting rods through rod body movement.
7. the charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas according to claim 1, it is characterized in that, described insulation colloid-injecting gun comprises for hand-held gun stock, for the gum-injecting port of plastic emitting and the trigger for controlling injecting glue, described trigger is fixed in the middle part of gun stock, and described gum-injecting port is arranged at gun stock front end.
8. the charged tape-pressure leakage clogging device of a kind of sulfur hexafluoride electrical equipment Leakage Gas according to claim 6 or 7, is characterized in that, described insulated fixing rod and insulation colloid-injecting gun are made by insulating material.
9. the charged pressurized leaking stoppage method of sulfur hexafluoride electrical equipment Leakage Gas, is characterized in that, adopts the arbitrary described device of claim 1-8, comprises the following steps:
Step one: open cut-out cock, uses the clamping part of insulated fixing rod to clamp cut-out cock, cut-out cock is moved to sulfur hexafluoride electrical equipment leakage point place;
Step 2: use insulation colloid-injecting gun to cut-out cock and sulfur hexafluoride electrical equipment leakage point contact portion injection adhesive, and wait for that adhesive solidification is stablized;
Step 3: cut-out cock is closed, completes Process of Leaking Stoppage.
10. the charged pressurized leaking stoppage method of a kind of sulfur hexafluoride electrical equipment Leakage Gas according to claim 9, is characterized in that, before execution step one, first on cut-out cock, applies waterproof ageing-resistant material.
CN201510586733.2A 2015-09-15 2015-09-15 Electrified pressure leakage blocking device and method for gas leakage of sulfur hexafluoride electrical equipment Pending CN105207090A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811280A (en) * 2016-04-21 2016-07-27 国家电网公司 Charged plugging method under voltage for gas leakage of GIS equipment
CN105932578A (en) * 2016-04-21 2016-09-07 国家电网公司 Charged and pressurized leak stopping device for GIS equipment gas leak
CN106532532A (en) * 2016-12-15 2017-03-22 国网山东省电力公司电力科学研究院 Air-leakage electrified under-pressure plugging method for gas-insulated switchgear
CN109103801A (en) * 2018-10-17 2018-12-28 国网重庆市电力公司检修分公司 SF6 gas insulation power device leakage plugging device and its control method
CN111473921A (en) * 2020-04-16 2020-07-31 国网湖南省电力有限公司 Detection system of sulfur hexafluoride leakage alarm device
CN114440052A (en) * 2021-12-29 2022-05-06 河南省交通规划设计研究院股份有限公司 Bridge sewer pipe repairing equipment and using method thereof

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CN203895808U (en) * 2014-04-10 2014-10-22 国家电网公司 Insulating tool for plugging 10 kV high voltage PT fuse protector under live-line condition
CN104896253A (en) * 2015-06-04 2015-09-09 安徽瀚洋节能科技有限公司 Industrial pipeline leakage point treating method under pressure

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JP2012225388A (en) * 2011-04-18 2012-11-15 Mitsubishi Electric Corp Pipe repair device and method
CN202206051U (en) * 2011-09-15 2012-04-25 刘成志 Protecting device used in electrified replacement of fuse wire of fuse
CN203312671U (en) * 2013-06-18 2013-11-27 国家电网公司 10kV distribution/transformation insulation isolation baffle device
CN203895808U (en) * 2014-04-10 2014-10-22 国家电网公司 Insulating tool for plugging 10 kV high voltage PT fuse protector under live-line condition
CN104896253A (en) * 2015-06-04 2015-09-09 安徽瀚洋节能科技有限公司 Industrial pipeline leakage point treating method under pressure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811280A (en) * 2016-04-21 2016-07-27 国家电网公司 Charged plugging method under voltage for gas leakage of GIS equipment
CN105932578A (en) * 2016-04-21 2016-09-07 国家电网公司 Charged and pressurized leak stopping device for GIS equipment gas leak
CN106532532A (en) * 2016-12-15 2017-03-22 国网山东省电力公司电力科学研究院 Air-leakage electrified under-pressure plugging method for gas-insulated switchgear
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CN111473921A (en) * 2020-04-16 2020-07-31 国网湖南省电力有限公司 Detection system of sulfur hexafluoride leakage alarm device
CN111473921B (en) * 2020-04-16 2022-09-09 国网湖南省电力有限公司 Detection system of sulfur hexafluoride leakage alarm device
CN114440052A (en) * 2021-12-29 2022-05-06 河南省交通规划设计研究院股份有限公司 Bridge sewer pipe repairing equipment and using method thereof
CN114440052B (en) * 2021-12-29 2024-04-05 河南省交通规划设计研究院股份有限公司 Bridge sewer pipe repairing equipment and using method thereof

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Application publication date: 20151230