CN217115600U - Novel SF6 inflation casing pipe - Google Patents
Novel SF6 inflation casing pipe Download PDFInfo
- Publication number
- CN217115600U CN217115600U CN202220750975.6U CN202220750975U CN217115600U CN 217115600 U CN217115600 U CN 217115600U CN 202220750975 U CN202220750975 U CN 202220750975U CN 217115600 U CN217115600 U CN 217115600U
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- hollow insulator
- apron
- cover plate
- conducting rod
- internal shield
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Abstract
The utility model discloses a novel SF6 aerifys sleeve pipe, two flanges are fixed connection respectively at hollow insulator's upper and lower both ends, apron and the flange fixed connection of upper end, go up equalizer ring and apron fixed connection, on the bottom embedding apron of wiring board the up end and with apron welded fastening, the conducting rod is located in hollow insulator, the lower terminal surface of top embedding apron of conducting rod and with apron welded fastening, in the hollow insulator was located to the internal shield, the flange fixed connection of the bottom and the lower extreme of internal shield, the last port of internal shield turned up and formed internal shield voltage-sharing terminal, the cross section at internal shield voltage-sharing terminal is solid oval. The utility model discloses the installation effect of structure is better, and is more firm, and electric stable performance, product are effectual.
Description
The technical field is as follows:
the utility model relates to a novel SF6 aerifys sleeve pipe.
Background art:
the SF6 outlet sleeve mainly comprises an insulator (porcelain or composite), a conductor and an internal and external shield, is applied to GIS/GCB equipment and is an important part of power grid equipment, 126-1100 kV-grade products are main frames of the currently applied power grid, 72.5kV is mainly used for mobile transformation, mining transformation and vehicle-mounted transformation, and is also large in market application. The high-voltage power transmission device is also used for connecting high-voltage, ultrahigh-voltage and extra-high-voltage power transmission of transformers, gas insulated metal enclosed switch (GIS) equipment, indoor and outdoor and the like, and is an indispensable important part of a high-voltage power transmission and distribution grid. The welding between wiring board and the apron in traditional SF6 aerifys the sleeve pipe is to make the groove with the welding position, then welds, and easy desoldering like this, and the current capacity is less, and interior shielding voltage-sharing terminal is the plain end structure in traditional SF6 aerifys the sleeve pipe, balanced electric field that can not be fine.
The invention content is as follows:
the utility model provides a novel SF6 inflatable sleeve for solving the problems existing in the prior art.
The utility model discloses the technical scheme who adopts has:
the utility model provides a novel SF6 aerifys sleeve pipe, including last equalizer ring, the wiring board, the apron, the conducting rod, hollow insulator, internal shield and flange, two flange difference fixed connection are at hollow insulator's upper and lower both ends, apron and the flange fixed connection of upper end, go up equalizer ring and apron fixed connection, on the up end of the bottom embedding apron of wiring board and with apron welded fastening, the conducting rod is located in the hollow insulator, the lower terminal surface of the top embedding apron of conducting rod and with apron welded fastening, the internal shield is located in the hollow insulator, the flange fixed connection of the bottom and the lower extreme of internal shield, the last port of internal shield turns up and forms internal shield voltage-sharing terminal, the cross section of internal shield voltage-sharing terminal is solid oval.
Furthermore, welding grooves are formed in the axle centers of the upper end face and the lower end face of the cover plate, a protruding portion is arranged in the middle of the bottom face of the wiring board, the protruding portion is embedded into the welding groove of the upper end face of the cover plate and is welded and fixed, the conducting rod is arranged in the hollow insulator, and the top end of the conducting rod is embedded into the welding groove of the lower end face of the cover plate and is welded and fixed.
Further, a transition flange is fixed on a flange at the lower end of the hollow insulator, a step surface with a horizontal edge and a vertical edge is arranged on the transition flange, the vertical edge of the step surface is arranged on the inner side of the inner wall surface of the hollow insulator, the lower port of the inner shield is turned outwards to form a horizontal fixing edge, after the fixing edge is fixedly connected with the horizontal edge of the step surface through a screw, the outer end surface of the fixing edge is arranged on the inner side of the inner wall surface of the hollow insulator.
The utility model discloses following beneficial effect has:
the utility model discloses the installation effect of structure is better, and is more firm, and electric stable performance, product are effectual.
Description of the drawings:
fig. 1 is a structural diagram of the present invention.
Fig. 2 is an enlarged view of the upper end of the SF6 inflation cuff.
Fig. 3 is a structural view of a wiring board.
Fig. 4 is an enlarged view of the lower end of the SF6 inflation sleeve.
Fig. 5 is an assembly view between the inner shield and the lower end flange and the hollow insulator.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to a novel SF6 aerifys sleeve pipe, including last equalizer ring 1, the wiring board 2, apron 3, conducting rod 4, hollow insulator 5, internal shield 6 and flange 7, two flange 7 difference fixed connection are at hollow insulator 5's upper and lower both ends, apron 3 and the flange 7 fixed connection of upper end, go up equalizer ring 1 and apron 3 fixed connection, on the bottom embedding apron 3's of wiring board 2 the up end and with apron 3 welded fastening, conducting rod 4 is located in hollow insulator 5, the lower terminal surface of conducting rod 4's top embedding apron 3 and with apron 3 welded fastening, internal shield 6 is located in the hollow insulator 5, the bottom of internal shield 6 and the flange 7 fixed connection of lower extreme, the up end of internal shield 6 turns up and forms internal shield voltage-sharing terminal 61, the cross section of internal shield voltage-sharing terminal 61 is solid oval.
As shown in fig. 2 and 3, in order to enable the wiring board 2 and the conductive rod 4 to be respectively embedded into the cover plate 3, welding grooves are respectively arranged at the axes of the upper end surface and the lower end surface of the cover plate 3, a protruding portion 21 is arranged in the middle of the bottom surface of the wiring board 2, the protruding portion 21 is embedded into the welding groove of the upper end surface of the cover plate 3 and is welded and fixed, the conductive rod 4 is arranged in the hollow insulator 5, and the top end of the conductive rod 4 is embedded into the welding groove of the lower end surface of the cover plate 3 and is welded and fixed. The utility model discloses improve welding process and adopt the embedding welding, the welding is firm, and the current-carrying capacity is bigger.
Additionally, the utility model discloses adopt "solid" shaping with the internal shield voltage-sharing terminal 61 of internal shield 6, and be the fillet transition, better balanced electric field just reduces the partial discharge voltage, satisfies the product electrical property requirement (like fig. 4).
As shown in fig. 5, in order to ensure that the inner shield 6 is firmly fixed to the hollow insulator 5, a step surface 72 having a horizontal side and a vertical side is provided on the transition flange 71, the vertical side of the step surface 72 is disposed on the inner side of the inner wall surface of the hollow insulator 5, the lower port of the inner shield 6 is turned outward and forms a horizontal fixing edge 62, after the fixing edge 62 is fixedly connected to the horizontal side of the step surface 72 by a screw, the outer end surface of the fixing edge 62 is disposed on the inner side of the inner wall surface of the hollow insulator 5. The fixed edge 62 is clamped between the flange 7 and the transition flange 71, so that the fixed effect of the inner shield 6 is ensured, and when the screw is loosened, the inner shield 6 can be effectively protected by a limiting buffer.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (3)
1. A novel SF6 inflation sleeve is characterized in that: comprises an upper equalizing ring (1), a wiring board (2), a cover plate (3), a conducting rod (4), a hollow insulator (5), an inner shield (6) and flanges (7), wherein the two flanges (7) are respectively and fixedly connected with the upper end and the lower end of the hollow insulator (5), the cover plate (3) is fixedly connected with the flanges (7) at the upper end, the upper equalizing ring (1) is fixedly connected with the cover plate (3), the bottom of the wiring board (2) is embedded into the upper end surface of the cover plate (3) and is welded with the cover plate (3), the conducting rod (4) is arranged in the hollow insulator (5), the top end of the conducting rod (4) is embedded into the lower end surface of the cover plate (3) and is welded with the cover plate (3), the inner shield (6) is arranged in the hollow insulator (5), the bottom end of the inner shield (6) is fixedly connected with the flanges (7) at the lower end, an upper end opening of the inner shield (6) is outwards turned and forms an inner shield equalizing terminal (61), the cross section of the inner shielding voltage-sharing terminal (61) is solid oval.
2. The novel SF6 inflation cuff of claim 1, wherein: all be equipped with welding groove in the axle center department of the upper and lower terminal surface of apron (3), the bottom surface middle part of wiring board (2) is equipped with bellying (21), bellying (21) imbed in the welding groove of apron (3) up end and welded fastening, in hollow insulator (5) was located in conducting rod (4), the top embedding of conducting rod (4) was lapped in the welding groove of terminal surface and welded fastening under (3).
3. The novel SF6 inflation cuff of claim 1, wherein: a transition flange (71) is fixed on a flange (7) at the lower end of the hollow insulator (5), a step surface (72) with a horizontal edge and a vertical edge is arranged on the transition flange (71), the vertical edge of the step surface (72) is arranged on the inner side of the inner wall surface of the hollow insulator (5), a lower port of the inner shield (6) is turned outwards to form a horizontal fixing edge (62), and after the fixing edge (62) is fixedly connected with the horizontal edge of the step surface (72) through a screw, the outer end surface of the fixing edge (62) is arranged on the inner side of the inner wall surface of the hollow insulator (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220750975.6U CN217115600U (en) | 2022-04-02 | 2022-04-02 | Novel SF6 inflation casing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220750975.6U CN217115600U (en) | 2022-04-02 | 2022-04-02 | Novel SF6 inflation casing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217115600U true CN217115600U (en) | 2022-08-02 |
Family
ID=82578116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220750975.6U Active CN217115600U (en) | 2022-04-02 | 2022-04-02 | Novel SF6 inflation casing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217115600U (en) |
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2022
- 2022-04-02 CN CN202220750975.6U patent/CN217115600U/en active Active
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