CN218770881U - GIS gassing specialized tool of totally closed combined electrical apparatus of gas insulation - Google Patents
GIS gassing specialized tool of totally closed combined electrical apparatus of gas insulation Download PDFInfo
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- CN218770881U CN218770881U CN202223073524.2U CN202223073524U CN218770881U CN 218770881 U CN218770881 U CN 218770881U CN 202223073524 U CN202223073524 U CN 202223073524U CN 218770881 U CN218770881 U CN 218770881U
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Abstract
The invention relates to a special gas-insulated totally-enclosed combined electrical apparatus GIS deflation tool, which comprises an outer nut, a centering head and a gas pipe; when the centering sleeve is used, the upper threads of the outer nut are screwed into the threaded matching surface of the GIS equipment inflation valve, the centering sleeve ensures that the top core is in centering contact with the inflation valve inner core, and the upper threads of the outer nut are screwed into the threaded matching surface of the GIS equipment inflation valve to form a seal with the centering sleeve baseClosed space to prevent SF 6 The overflow of gas; with the further screw-in of the outer nut, the top core props against the inner core of the GIS equipment inflation valve port and is gradually compressed, and then the GIS equipment inflation valve port can be opened and release SF 6 Gas, then SF 6 The gas flows in from the vent hole of the top core and is discharged from the straight pipe. The special tool can not only improve the working efficiency, but also ensure the reliable, safe and accurate verification of SF 6 Whether the function of gas densimeter is normal, use this instrument can effectively reduce among the daily overhaul maintenance the damage and the production of tiny metal fillings that equipment inflation valve inner core caused of the nonstandard operation.
Description
Technical Field
The invention relates to the field of electric tools, in particular to a special gas release tool for a gas insulated fully-closed combined electrical apparatus GIS.
Background
The gas insulated totally-enclosed combined electrical apparatus GIS has been widely used in domestic electric power system because of its high reliability, good safety, short installation period, convenient maintenance, miniaturization and other features. Currently, the inside of GIS equipment is filled with SF with certain pressure 6 Gas is used as an insulating medium, a gas chamber is divided according to the requirements of equipment structure and safe and stable operation, and SF is installed 6 Gas densitometer for real-time monitoring and feedback of GIS equipment SF 6 And the safe and reliable operation of the GIS equipment is ensured under the condition of gas. Checking SF in daily maintenance of GIS equipment 6 Whether the function of the gas densimeter is normal or not is an important item, and under the normal condition, a maintainer firstly closes a stop valve at an air inflation opening and then uses metal tools such as an iron rod and a screwdriver to knock an inner core in the air inflation opening to discharge trace gas, so that SF (sulfur hexafluoride) is enabled to be discharged 6 The contacts of the gas densitometer are connected to an upload pressure decrease alarm signal and a pressure decrease lockout signal. This method can verify SF 6 Whether the function of the gas densimeter is normal or not, however, the inner core of the inflation inlet is easy to damage in the mode, the inner core of the inflation inlet is made of metal materials at present, and fine metal chips can be generated by knocking metal materials such as ironware and the like, so that the gas densimeter can be used for measuring the thickness of the metal materials in case of being usedThe device enters the GIS device, which brings serious hidden danger to the safe and reliable operation of the device; and the force and the amount of gas discharged cannot be controlled easily when the inner core of the inflation inlet is knocked, so that SF (sulfur hexafluoride) cannot be effectively verified 6 Accuracy of gas densitometer action.
Disclosure of Invention
Aiming at the defect that the inner core of the inflating port is easy to damage when a metal tool is used for knocking the inflating port during maintenance of the GIS equipment, the metal tool is used for knocking to generate fine metal chips, so that serious potential safety hazards are brought to the reliable operation of the GIS equipment. The gas insulation totally-enclosed combined electrical apparatus GIS gas release special tool is suitable for a special tool required during GIS equipment maintenance, so as to realize effective, standard and reliable SF inspection during daily maintenance and new equipment acceptance and commissioning 6 The function of the gas densimeter ensures the safe and stable operation of the GIS equipment, and the technical scheme of the invention is as follows:
a gas insulation totally-enclosed combined electrical apparatus GIS deflation specialized tool, comprising an outer nut 1, a centering head 2 and a gas pipe 3, wherein the centering head 2 comprises a base 21 and a centering sleeve 22, and the gas pipe 3 comprises a straight pipe 31 and a top core 32;
the upper thread of the outer nut 1 is connected with the cylindrical part outside the GIS equipment inflation valve through threads and moves along the thread direction;
the centering head 2 is a stepped hollow composite cylinder consisting of a centering sleeve 22 and a base 21, wherein the axis of the centering sleeve is provided with a through hole, the diameter of the through hole of the centering sleeve 22 is larger than that of the through hole of the base 21, and the outer side surface of the outer circle of the base 21 is fixedly arranged at the position of the lower threaded part of the outer nut 1;
the gas pipe 3 consists of a top core 32 and a straight pipe 31, the top core 32 is a frustum body with a closed top, is positioned in the through hole of the centering sleeve 22, is provided with a plurality of vent holes on the side surface and is communicated with the straight pipe 31; the straight pipe 31 penetrates through and is fixed in the through hole of the base 21 and can be connected with a corresponding container through an external pipe.
Preferably, the outer nut 1 is a hexagonal thick nut.
The beneficial effects of the implementation of the invention are as follows: when the gas insulated totally-enclosed combined electrical apparatus GIS special tool for gas release is used,screwing the upper thread of the outer nut 1 into the thread matching surface of the GIS equipment inflation valve, ensuring the centering sleeve to ensure that the top core is in centering contact with the inflation valve inner core, and screwing the upper thread of the outer nut into the thread matching surface of the GIS equipment inflation valve to form a closed space with the centering sleeve base so as to prevent SF 6 The overflow of gas; with the further screwing of the outer nut 1, the top core 32 props against the inner core of the GIS equipment inflation valve port and is gradually compressed, and then the GIS equipment inflation valve port can be opened and release SF 6 Gas, then SF 6 The gas flows in through the vent hole of the top core 32 and is discharged through the straight pipe 31.
The special tool can improve the working efficiency and ensure reliable, safe and accurate verification of SF 6 Whether the gas densitometer functions properly; compared with the traditional method, the tool can effectively reduce the damage to the inner core of the charging valve of the equipment and the generation of fine metal chips caused by irregular operation in daily maintenance, reduce the hidden danger of equipment operation and further ensure the reliable and safe operation of the equipment and a power grid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1: a perspective view of the special deflation tool;
FIG. 2: a top view of the special deflation tool;
FIG. 3: FIG. 2 is a cross-sectional view taken along line D-D;
in the figure: the centering device comprises an outer nut (1), a centering head (2), a base (21), a centering sleeve (22), an air pipe (3), a straight pipe (31) and a top core (32).
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment of the present invention, please refer to fig. 1 to 3.
A gas insulation totally-enclosed combined electrical apparatus GIS deflation specialized tool, comprising an outer nut 1, a centering head 2 and an air pipe 3, wherein the centering head 2 comprises a base 21 and a centering sleeve 22, and the air pipe 3 comprises a straight pipe 31 and a top core 32;
the outer nut 1 is a hexagonal thick nut, and the upper thread of the outer nut is connected with the cylindrical part outside the GIS equipment inflation valve through threads and moves along the thread direction;
the centering head 2 is a stepped hollow composite cylinder consisting of a centering sleeve 22 and a base 21, wherein the axis of the centering sleeve is provided with a through hole, the diameter of the through hole of the centering sleeve 22 is larger than that of the through hole of the base 21, and the outer side surface of the outer circle of the base 21 is fixedly arranged at the position of the lower threaded part of the outer nut 1;
the air pipe 3 consists of a top core 32 and a straight pipe 31, the top core 32 is a frustum body with a closed top, is positioned in the through hole of the centering sleeve 22, is provided with a plurality of air holes on the side surface and is communicated with the straight pipe 31; the straight pipe 31 penetrates through and is fixed in the through hole of the base 21 and can be connected with a corresponding container through an external connecting pipe.
When the gas insulation totally-enclosed combined electrical apparatus GIS special deflation tool is used, the upper thread part of the outer nut 1 is screwed into the thread matching surface of the GIS equipment inflation valve, the centering sleeve ensures that the top core is in centering contact with the inflation valve inner core, and the upper thread of the outer nut is screwed into the thread matching surface of the GIS equipment inflation valve to form a closed space with the centering sleeve base so as to prevent SF 6 The overflow of gas; with the further screwing of the outer nut 1, the top core 32 props against the inner core of the GIS equipment inflation valve port and is gradually compressed, and then the GIS equipment inflation valve port can be opened and releases SF 6 Gas, then SF 6 The gas flows in through the vent hole of the top core 32 and is discharged through the straight pipe 31.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (2)
1. A gas insulation totally-enclosed combined electrical apparatus GIS gassing specialized tool, characterized by, including the outer nut (1), centering head (2) and trachea (3), the said centering head (2) includes the base (21) and centering set (22), the said trachea (3) includes the straight tube (31) and ejector core (32);
the upper thread of the outer nut (1) is connected with the cylindrical part outside the GIS equipment inflation valve through threads and moves along the thread direction;
the centering head (2) is a stepped hollow composite cylinder consisting of a centering sleeve (22) and a base (21), wherein the axis of the centering sleeve is provided with a through hole, the diameter of the through hole of the centering sleeve (22) is larger than that of the through hole of the base (21), and the outer side surface of the outer circle of the base (21) is fixedly arranged at the position of a thread part at the lower part of the outer nut (1);
the air pipe (3) consists of a top core (32) and a straight pipe (31), the top core (32) is a frustum body with a sealed top, is positioned in the through hole of the centering sleeve (22), is provided with a plurality of air holes on the side surface and is communicated with the straight pipe (31); the straight pipe (31) penetrates through and is fixed in the through hole of the base (21) and can be connected with a corresponding container through an external pipe.
2. The special gas releasing tool for the gas insulated fully-closed combined electrical apparatus GIS according to claim 1 is characterized in that the outer nut (1) is a hexagonal thick nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073524.2U CN218770881U (en) | 2022-11-21 | 2022-11-21 | GIS gassing specialized tool of totally closed combined electrical apparatus of gas insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073524.2U CN218770881U (en) | 2022-11-21 | 2022-11-21 | GIS gassing specialized tool of totally closed combined electrical apparatus of gas insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218770881U true CN218770881U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223073524.2U Active CN218770881U (en) | 2022-11-21 | 2022-11-21 | GIS gassing specialized tool of totally closed combined electrical apparatus of gas insulation |
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| Country | Link |
|---|---|
| CN (1) | CN218770881U (en) |
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2022
- 2022-11-21 CN CN202223073524.2U patent/CN218770881U/en active Active
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