CN109103801B - SF6 gas insulated power equipment leakage plugging device and control method thereof - Google Patents
SF6 gas insulated power equipment leakage plugging device and control method thereof Download PDFInfo
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- CN109103801B CN109103801B CN201811210012.1A CN201811210012A CN109103801B CN 109103801 B CN109103801 B CN 109103801B CN 201811210012 A CN201811210012 A CN 201811210012A CN 109103801 B CN109103801 B CN 109103801B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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Abstract
The invention provides a leakage plugging device of SF6 gas insulated power equipment and a control method thereof, which is characterized in that: including filling the rifle, fill the rifle and include handle, trigger and stack, the lower extreme of handle is provided with the plugging agent suction tube, the rear end of stack is provided with the gaseous suction tube of SF6, is provided with the nozzle at the front end of stack the inside plugging agent filling pump and the gaseous pump of filling that is provided with of handle, the plugging agent suction tube with the import of plugging agent filling pump links to each other, and the export of this plugging agent filling pump through first pipeline with the nozzle links to each other, the gaseous suction tube of SF6 with the import of gaseous pump links to each other, the export of this gaseous pump of filling pump through the second pipeline with the nozzle links to each other. The effect is as follows: simple structure, convenient operation can realize SF6 gas-insulated power equipment presses gas compensation and quick shutoff under the area under the pressure leakage state, and the plugging agent fills evenly, has ensured the shutoff effect.
Description
Technical Field
The invention relates to a gas leakage blocking technology, in particular to a SF6 gas insulation power equipment leakage blocking device and a control method thereof.
Background
The SF6 gas has strong insulating property, so the SF6 gas is widely used in high-voltage electrical equipment, and along with the popularization of application, the problem of leakage of SF6 gas-insulated electrical equipment also becomes a great problem which puzzles the electrical industry.
The SF6 leakage greatly reduces the insulation performance of equipment and affects the normal operation of an electric power system, and a plugging technology is often adopted in the prior art for remediation, for example, a plugging technology for SF6 gas insulation electric power equipment leakage disclosed in Chinese patent 200710037563.8 is characterized in that a mixture formed by mixing a nano powder filler and a curing agent into a basic material is coated on the surface of a leakage part, after the mixture is partially sucked dry, a plugging material formed by mixing a base material and a curing agent is coated on the surface of the mixture, and the leakage plugging capability is improved by plugging two layers of materials.
But it has the following disadvantages:
(1) the equipment is often in a state of pressure, the plugging agent is directly coated, and the bonding effect is not ideal;
(2) the coating process is often manual, and the coating amount is often uneven;
(3) direct coating, the inside SF6 of equipment is not supplemented, to leaking the big power equipment of volume, and the operation effect in later stage produces the influence easily.
Disclosure of Invention
Aiming at the defects in the prior art, the invention firstly provides the leakage plugging device for the SF6 gas insulated power equipment, aiming at the problem of leakage plugging of the SF6 gas insulated power equipment, the leakage gas can be supplemented and plugging reagents can be automatically filled, the operation is convenient and quick, and the plugging effect is ensured.
In order to achieve the purpose, the invention adopts the following specific technical scheme:
the utility model provides a SF6 gas insulation power equipment leakage plugging device which the key lies in: including filling gun (1), fill gun (1) including handle (3), trigger (2) and gun rack (4), the lower extreme of handle (3) is provided with blocking agent suction tube (5), the rear end of gun rack (4) is provided with SF6 gas suction tube (6), is provided with nozzle (7) at the front end of gun rack (4) inside blocking agent filling pump (8) and the gas filling pump (9) of being provided with of handle (3), blocking agent suction tube (5) with the import of blocking agent filling pump (8) links to each other, the export of this blocking agent filling pump (8) through first pipeline with nozzle (7) link to each other, SF6 gas suction tube (6) with the import of gas filling pump (9) links to each other, the export of this gas filling pump (9) through the second pipeline with nozzle (7) link to each other.
The device sets up to the rifle body shape, utilizes the shutoff agent suction tube of handle lower extreme to absorb the shutoff agent, utilizes the gaseous suction tube of SF6 gas at gun rack rear end to absorb SF6 gas and replenishes, can guarantee SF6 gas insulation power equipment leakage gas's compensation, can utilize the automatic shutoff of shutoff agent again, and convenient operation is rapid, and the shutoff is respond well.
Optionally, in order to ensure uniform mixing of the plugging agent, a stirring paddle (10) for stirring the plugging agent is arranged at the lower end of the handle (3), and a stirring motor (11) connected with the stirring paddle (10) is arranged in the handle (3).
Optionally, in order to conveniently replace the plugging kit, the lower end of the handle (3) is detachably connected with the plugging kit (12) through threads.
Optionally, for convenience in operation, the plugging agent filling pump (8), the gas filling pump (9) and the stirring motor (11) are started and stopped by being controlled by the trigger (2), the gun rack (4) is further provided with a power switch (12) and a mode selection switch (13), a control circuit board (14) is arranged inside the handle (3), and the mode selection switch (13) comprises three switching states of a stirring mode, an air supply mode and a plugging mode. The working mode of the device is changed through the mode selection switch, so that when the trigger is pulled, different equipment is controlled.
In order to ensure the plugging effect, a current detection module (15) is arranged on the control circuit board (14), and the current detection module (15) is used for detecting the output power of the plugging agent perfusion pump (8), the gas filling pump (9) or the stirring motor (11) and controlling the stop time of the plugging agent perfusion pump (8), the gas filling pump (9) or the stirring motor (11) according to power thresholds in different working modes.
Optionally, in order to facilitate the on-site detection of the leakage point, an infrared probe (16) and an infrared imaging display module (17) are arranged on the gun rack (4).
Optionally, in order to ensure the sealing effect, a pouring mold (18) is connected to the nozzle (7), and a sealing gasket (19) is arranged on the edge of the pouring mold (18).
Based on the device, the invention also provides a control method of the leakage plugging device of the SF6 gas insulated power equipment, which comprises the following steps:
s1: connecting an SF6 gas suction pipe (6) with an SF6 gas storage tank, connecting a blocking agent suction pipe (5) with a blocking kit (12) filled with a blocking agent, and connecting a pouring mold (18) on the nozzle (7);
s2: setting the working mode to a gas supplementing mode, pulling the trigger (2), and enabling the gas filling pump (9) to suck gas from the SF6 gas storage tank through the SF6 gas suction pipe (6) and supplement the gas into SF6 gas insulated electric equipment through the pouring die (18);
s3: setting the working mode as a plugging mode, pulling the trigger (2), and sucking the plugging agent from the plugging kit (12) by the plugging agent suction pipe (5) by the plugging agent perfusion pump (8) and perfusing the leakage part of SF6 gas insulated power equipment by the perfusion mold (18).
Optionally, the method changes the working mode of the device by arranging a mode selection switch (13) on the gun rack (4), wherein the mode selection switch (13) comprises three switch states of a stirring mode, an air supply mode and a plugging mode, a stirring paddle (10) for stirring the plugging agent is arranged at the lower end of the handle (3), a stirring motor (11) connected with the stirring paddle (10) in a shaft is arranged in the handle (3), and when the mode selection switch (13) is set to be the stirring mode, the stirring motor (11) drives the stirring paddle (10) to rotate, so that the plugging agent in the plugging agent box (12) is stirred.
Optionally, the method detects the output power of the plugging agent perfusion pump (8), the gas filling pump (9) or the stirring motor (11) through a current detection module (15), sets different power thresholds according to different working modes respectively, and controls the stop time of the plugging agent perfusion pump (8), the gas filling pump (9) or the stirring motor (11) according to the corresponding power thresholds.
The invention has the beneficial effects that:
simple structure, convenient operation can realize SF6 gas insulation power equipment presses gas compensation and quick shutoff under the area pressure leakage state, and the plugging agent fills evenly, has ensured the shutoff effect, and equipment is from taking multiple mode, and the function is perfect relatively.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram illustrating an operating state of an embodiment of the present invention;
FIG. 3 is a functional block diagram of a control circuit according to an embodiment of the present invention;
fig. 4 is a control flow chart of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
As shown in fig. 1 and fig. 2, the present embodiment discloses a SF6 gas insulation power equipment leakage blocking device, including filling gun 1, filling gun 1 includes handle 3, trigger 2 and gun rack 4, the lower extreme of handle 3 is provided with blocking agent suction pipe 5, the rear end of gun rack 4 is provided with SF6 gas suction pipe 6, is provided with nozzle 7 at the front end of gun rack 4, be provided with blocking agent filling pump 8 and gas filling pump 9 inside handle 3, blocking agent suction pipe 5 with the import of blocking agent filling pump 8 links to each other, and the export of this blocking agent filling pump 8 passes through first pipeline with nozzle 7 links to each other, SF6 gas suction pipe 6 with the import of gas filling pump 9 links to each other, and the export of this gas filling pump 9 passes through the second pipeline with nozzle 7 links to each other. The lower extreme of handle 3 is provided with the stirring rake 10 that is used for stirring the blocking agent and is connected with shutoff kit 12 through the screw thread is detachable be provided with in the handle 3 with stirring motor 11 of stirring rake 10 hub connection.
In this embodiment, the start and stop of the plugging agent filling pump 8, the gas filling pump 9 and the stirring motor 11 are controlled by the trigger 2, the gun rack 4 is further provided with a power switch 12 and a mode selection switch 13, a control circuit board 14 is arranged inside the handle 3, and the mode selection switch 13 includes three switching states of a stirring mode, an air supply mode and a plugging mode. As shown in fig. 3, a current detection module 15 is disposed on the control circuit board 14, and the current detection module 15 is configured to detect output power of the blocking agent perfusion pump 8, the gas filling pump 9, or the stirring motor 11, and control stop time of the blocking agent perfusion pump 8, the gas filling pump 9, or the stirring motor 11 according to power thresholds in different working modes, respectively.
In order to enable the device to be suitable for various complex working environments, the gun rack 4 is further provided with an infrared probe 16 and an infrared imaging display module 17, the nozzle 7 is connected with a pouring mold 18, and the edge of the pouring mold 18 is provided with a sealing gasket 19.
The embodiment also discloses a control method of the leakage blocking device of the SF6 gas insulated power equipment, as shown in fig. 4, the method mainly comprises the following steps:
s1: connecting an SF6 gas suction pipe 6 with an SF6 gas storage tank, connecting a blocking agent suction pipe 5 with a blocking kit 12 filled with a blocking agent, and connecting a perfusion mold 18 on the nozzle 7;
s2: setting the working mode to the air supply mode, pulling the trigger 2, and enabling the gas filling pump 9 to suck gas from the SF6 gas storage tank through the SF6 gas suction pipe 6 and to be supplemented into SF6 gas insulated power equipment through the pouring die 18;
s3: setting the working mode as a plugging mode, pulling the trigger 2, and sucking the plugging agent from the plugging agent kit 12 by the plugging agent suction pipe 5 by the plugging agent perfusion pump 8, and perfusing the plugging agent at the leakage position of SF6 gas insulated power equipment by the perfusion mold 18.
According to the method, a mode selection switch 13 is arranged on a gun rack 4 to change the working mode of the device, the mode selection switch 13 comprises three switch states of a stirring mode, an air supply mode and a plugging mode, a stirring paddle 10 used for stirring plugging agents is arranged at the lower end of a handle 3, a stirring motor 11 connected with the stirring paddle 10 through a shaft is arranged in the handle 3, and when the mode selection switch 13 is set to be in the stirring mode, the stirring motor 11 drives the stirring paddle 10 to rotate, so that the plugging agents in a plugging agent box 12 are stirred.
Meanwhile, in this embodiment, by applying the method, the current detection module 15 is used to detect the output power of the blocking agent perfusion pump 8, the gas filling pump 9, or the stirring motor 11, and different power thresholds are set according to different working modes, respectively, and the stop time of the blocking agent perfusion pump 8, the gas filling pump 9, or the stirring motor 11 is controlled according to the corresponding power thresholds.
In conclusion, the leakage plugging device for the F6 gas insulated power equipment provided by the embodiment has the advantages of simple structure and convenience in operation, can realize gas compensation and rapid plugging of SF6 gas insulated power equipment in a pressure leakage state, is uniform in pouring of the plugging agent, and ensures the plugging effect. And the equipment has multiple working modes and relatively complete functions.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (8)
- SF6 gas insulation power equipment leakage plugging device, its characterized in that: the device comprises a filling gun (1), wherein the filling gun (1) comprises a trigger (2), a handle (3) and a gun rack (4), a plugging agent suction pipe (5) is arranged at the lower end of the handle (3), an SF6 gas suction pipe (6) is arranged at the rear end of the gun rack (4), a nozzle (7) is arranged at the front end of the gun rack (4), a plugging agent filling pump (8) and a gas filling pump (9) are arranged inside the handle (3), the plugging agent suction pipe (5) is connected with an inlet of the plugging agent filling pump (8), an outlet of the plugging agent filling pump (8) is connected with the nozzle (7) through a first pipeline, the SF6 gas suction pipe (6) is connected with an inlet of the gas filling pump (9), and an outlet of the gas filling pump (9) is connected with the nozzle (7) through a second pipeline;a stirring paddle (10) for stirring the plugging agent is arranged at the lower end of the handle (3), and a stirring motor (11) connected with the stirring paddle (10) in a shaft is arranged in the handle (3);blocking agent filling pump (8), gas filling pump (9) and opening of agitator motor (11) is stopped and is all passed through trigger (2) control still be provided with switch and mode selection switch (13) on gun rack (4) handle (3) inside is provided with control circuit board (14), mode selection switch (13) are including three kinds of on-off states of stirring mode, tonifying qi mode and shutoff mode.
- 2. SF6 gas insulated electrical equipment leakage plugging device of claim 1, wherein: the lower end of the handle (3) is detachably connected with a plugging kit (12) through threads.
- 3. SF6 gas insulated electrical equipment leakage plugging device of claim 1, wherein: and a current detection module (15) is arranged on the control circuit board (14), and the current detection module (15) is used for detecting the output power of the blocking agent filling pump (8), the gas filling pump (9) or the stirring motor (11) and controlling the stop time of the blocking agent filling pump (8), the gas filling pump (9) or the stirring motor (11) according to power thresholds in different working modes.
- 4. SF6 gas insulated electrical equipment leakage plugging device of claim 1, wherein: an infrared probe (16) and an infrared imaging display module (17) are arranged on the gun rack (4).
- 5. SF6 gas insulated electric power equipment leakage blocking device of claims 1-4, characterized by: the nozzle (7) is connected with a pouring mold (18), and a sealing gasket (19) is arranged on the edge of the pouring mold (18).
- 6. The method for controlling the leakage blocking device of the SF6 gas insulated electric power equipment of claim 1, comprising the steps of:s1: connecting an SF6 gas suction pipe (6) with an SF6 gas storage tank, connecting a blocking agent suction pipe (5) with a blocking kit (12) filled with a blocking agent, and connecting a pouring mold (18) on the nozzle (7);s2: setting the working mode to a gas supplementing mode, pulling the trigger (2), and enabling the gas filling pump (9) to suck gas from the SF6 gas storage tank through the SF6 gas suction pipe (6) and supplement the gas into SF6 gas insulated electric equipment through the pouring die (18);s3: setting the working mode as a plugging mode, pulling the trigger (2), and sucking the plugging agent from the plugging kit (12) by the plugging agent suction pipe (5) by the plugging agent perfusion pump (8) and perfusing the leakage part of SF6 gas insulated power equipment by the perfusion mold (18).
- 7. The method for controlling the leakage blocking device for SF6 gas insulated electric power equipment of claim 6, wherein: through set up mode selection switch (13) on gun rack (4) and change the mode of device, mode selection switch (13) are including three kinds of on-off states of stirring mode, tonifying qi mode and shutoff mode the lower extreme of handle (3) is provided with stirring rake (10) that are used for stirring the shutoff agent be provided with in handle (3) with stirring motor (11) of stirring rake (10) hub connection, work as mode selection switch (13) are set for the stirring mode, stirring motor (11) drive stirring rake (10) are rotatory, realize right the stirring of the shutoff agent in shutoff kit (12).
- 8. The method for controlling the leakage blocking device for SF6 gas insulated electric power equipment of claim 6, wherein: and detecting the output power of the plugging agent filling pump (8), the gas filling pump (9) or the stirring motor (11) through a current detection module (15), setting different power thresholds according to different working modes respectively, and controlling the stop time of the plugging agent filling pump (8), the gas filling pump (9) or the stirring motor (11) according to the corresponding power thresholds.
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| CN201811210012.1A CN109103801B (en) | 2018-10-17 | 2018-10-17 | SF6 gas insulated power equipment leakage plugging device and control method thereof |
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| CN112768286B (en) * | 2021-01-22 | 2021-09-28 | 南京普瑞电力科技有限公司 | SF6 high-voltage circuit breaker with leakage detection and leakage repair functions |
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| CN207628601U (en) * | 2017-11-30 | 2018-07-20 | 扬州通和机械有限公司 | A kind of new and effective spray gun for paint |
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| US5671559A (en) * | 1995-06-08 | 1997-09-30 | Ludaesher; Edward C. | Non lethal firearm device |
| CN2399524Y (en) * | 1999-03-08 | 2000-10-04 | 周武巧 | Multifunctional fast replacing, dusting, inflating, spraying, and dust blowing gun |
| CN2796852Y (en) * | 2005-06-01 | 2006-07-19 | 陈韫韬 | Integrated spray gun for dust removal car washing, aeration |
| CN2910373Y (en) * | 2006-06-15 | 2007-06-13 | 陈韫韬 | Multifunction spray gun for washing car and inflating tyre |
| CN101017965B (en) * | 2007-02-14 | 2011-07-06 | 上海市电力公司 | A blocking technology of SF6 gas insulation power device leakage |
| CN201558765U (en) * | 2009-12-09 | 2010-08-25 | 浙江奥利达气动工具股份有限公司 | Multifunctional spray gun |
| CN102526917A (en) * | 2010-12-30 | 2012-07-04 | 上海靓消消防装备有限公司 | Multi-functional water mist spray gun |
| EP2756515B1 (en) * | 2011-09-15 | 2018-04-11 | Cold Plasma Medical Technologies, Inc. | Cold plasma treatment device and associated method |
| US20130075489A1 (en) * | 2011-09-27 | 2013-03-28 | Shiqi Zhu | Pneumatic spray gun with digital pressure readout |
| CN103521377B (en) * | 2013-09-30 | 2016-03-30 | 无锡夕阳康科技有限公司 | Multi-functional suction-jet type spray gun |
| CN203610248U (en) * | 2013-12-05 | 2014-05-28 | 宁波浩盛气动机械有限公司 | Spray gun for micro air pump |
| CN103934172A (en) * | 2014-04-18 | 2014-07-23 | 卓仲表 | Opening sealed silicone gun |
| US9821332B2 (en) * | 2014-07-31 | 2017-11-21 | Steven E. Adams | Two component airless adhesive spray gun and method of use |
| CN105207090A (en) * | 2015-09-15 | 2015-12-30 | 国家电网公司 | Electrified pressure leakage blocking device and method for gas leakage of sulfur hexafluoride electrical equipment |
| CN106532532B (en) * | 2016-12-15 | 2018-06-08 | 国网山东省电力公司电力科学研究院 | Pressure plugging method is charged in gas insulated combined electric appliance equipment gas leakage |
| CN108317923A (en) * | 2018-04-14 | 2018-07-24 | 山东科技大学 | A kind of bullet formula blasthole blocks rifle and application method |
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| CN207628601U (en) * | 2017-11-30 | 2018-07-20 | 扬州通和机械有限公司 | A kind of new and effective spray gun for paint |
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