CN220107525U - Built-in basin-type insulator for GIL - Google Patents
Built-in basin-type insulator for GIL Download PDFInfo
- Publication number
- CN220107525U CN220107525U CN202321224809.3U CN202321224809U CN220107525U CN 220107525 U CN220107525 U CN 220107525U CN 202321224809 U CN202321224809 U CN 202321224809U CN 220107525 U CN220107525 U CN 220107525U
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- basin
- built
- type insulator
- flange
- gil
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- 239000012212 insulator Substances 0.000 title claims abstract description 87
- 239000002245 particle Substances 0.000 claims abstract description 35
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model provides a built-in basin-type insulator for a GIL, wherein a first shell is in sealing connection with a second shell, a first flange inner ring of the first shell is provided with an inward concave step, an outer ring of the built-in basin-type insulator is arranged on the surface of the concave step, the surface of the built-in basin-type insulator is lower than a first flange connecting surface or is positioned on the same horizontal plane with the first flange connecting surface, one side of the built-in basin-type insulator is also provided with a compression ring, and a plurality of nuts penetrate through the compression ring and are in threaded connection with the concave step of the first flange. The GIL shell flange is internally provided with a groove, the basin-shaped insulator is arranged in the groove, the compression ring is pressed on the basin-shaped flange and fastened on the shell flange through screws, a section of connecting conductor is arranged on the concave side of the built-in basin-shaped insulator, and particle traps are respectively arranged on the concave side and the convex side of the basin.
Description
Technical Field
The utility model relates to the field of basin-type insulator installation, in particular to a built-in basin-type insulator for GIL.
Background
The gas insulated power transmission line equipment (GIL for short) is used as novel power transmission equipment, is increasingly applied at home and abroad due to the characteristics of large transmission capacity, compact arrangement, high reliability, no fire risk and the like, and is mainly applied to scenes such as direct current converter stations, nuclear power stations, hydropower stations, urban pipe galleries and the like in China. GIL is mostly a closed corridor arrangement in hydropower stations, nuclear power plants, while urban pipe gallery GIL projects may pass through populated areas. Thus, in these deployment environment scenarios, the risk of air leakage to GIL devices is minimized.
The purpose of air chamber separation is realized through the basin-type insulator in the GIL circuit, and the basin-type insulator that present GIL used is installed between the shell, through bolted connection fastening, can form twice sealing connection face in basin-type insulator junction both sides, has increased the risk of GIL circuit gas leakage in the intangible, and the unsmooth side of current basin-type insulator all does not install the particle trapper, has increased GIL equipment running risk.
Disclosure of Invention
The utility model mainly aims to provide a built-in basin-type insulator for GIL, which solves the problems that the sealing connection surfaces of the air separation basin-type insulator in the GIL circuit are large, and particle traps are not arranged on two sides of the basin-type insulator.
In order to solve the technical problems, the utility model adopts the following technical scheme: the built-in basin-type insulator for the GIL is characterized in that a first shell is in sealing connection with a second shell, a first flange inner ring of the first shell is provided with an inward concave step, an outer ring of the built-in basin-type insulator is arranged on the surface of the concave step, the surface of the built-in basin-type insulator is lower than a first flange connection surface or is positioned on the same horizontal plane with the first flange connection surface, one side of the built-in basin-type insulator is further provided with a compression ring, and a plurality of nuts penetrate through the compression ring and are in threaded connection with the concave step of the first flange.
In the preferred scheme, the second flange inner ring of second shell is equipped with inwards sunken step, and the clamping ring sets up in the sunken step face position of second flange.
In the preferred scheme, a sealing ring is arranged between the built-in basin-type insulator and the first flange.
In the preferred scheme, a sealing ring is arranged between the built-in basin-type insulator and the compression ring.
In the preferred scheme, a stop table is arranged in the center of the concave side of the built-in basin-type insulator, a round hole matched with the stop table is formed in the connecting end of the first connecting conductor, and the first connecting conductor and the stop table are coaxially arranged.
In the preferred scheme, the cover body structure of the second connecting conductor covers the outside of the basin center insert at the convex side of the built-in basin insulator, and the basin center insert and the second connecting conductor are coaxially arranged.
In a preferred embodiment, the first housing and the second housing are internally provided with particle traps.
In a preferred embodiment, the particle trap is a 110-130 ° fan-shaped particle trap.
In a preferred embodiment, the basin convex side particle trap is connected to the first flange by a plurality of nuts.
In the preferred embodiment, the basin concave side particle catcher is connected to one side of the pressure ring by a plurality of nuts.
The utility model provides a built-in basin-type insulator for a GIL, which is characterized in that the basin-type insulator for separating an air chamber in the GIL is embedded into a GIL shell, the joint of the GIL shell is provided with only one sealing surface, and meanwhile, particle traps are arranged at the lower parts of two sides of the basin-type insulator, so that the gas leakage risk of the GIL is reduced, and meanwhile, the operation reliability of equipment is improved. The built-in basin-type insulator has at least the following beneficial effects: the utility model effectively reduces the sealing connection surface at the air separation basin-type insulator, improves the connection reliability of the basin and the flange, and reduces the air leakage risk. According to the utility model, the particle traps are arranged at the lower parts of two sides of the built-in basin-type insulator, so that the running reliability of the equipment is improved. The basin-type insulator is arranged in the GIL shell, so that the risk of shortening the service life of the basin caused by leakage of the epoxy resin material is reduced, and meanwhile, the sealing surface of the GIL shell is reduced when the GIL shell is in butt joint, so that the risk of air leakage is reduced. The flange of the built-in basin-type insulator is cast into a flat plate structure, so that the casting structure is simplified, the sealing groove is processed on a metal piece, and the size and the surface smoothness can be ensured. A section of connecting conductor is arranged on the concave side of the built-in basin-type insulator, so that electric field distribution of the concave side of the basin is improved. Particle traps are arranged at the lower parts of the concave-convex sides of the built-in basin-type insulators, so that the running reliability of the equipment is improved.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the present utility model with a built-in basin-type insulator;
FIG. 3 is a schematic view of the basin of the present utility model installed inside a GIL housing;
FIG. 4 is a schematic illustration of the connection of a connection conductor to an insert of the present utility model;
FIG. 5 is a schematic view of the installation of the particle trap of the present utility model.
In the figure: a first housing 1; a first flange 101; a second housing 2; a second flange 201; a basin-type insulator 3 is arranged in the inner shell; basin center insert 301; a stop table 302; a press ring 4; a particle catcher 5; a basin convex side particle catcher 501; basin concave side particle catcher 502; a first connection conductor 6; a second connection conductor 7.
Detailed Description
As shown in fig. 1-5, a built-in basin-type insulator for GIL is provided, a first housing 1 is in sealing connection with a second housing 2, an inner ring of a first flange 101 of the first housing 1 is provided with an inward concave step, an outer ring of the built-in basin-type insulator 3 is arranged on a concave step surface, the surface of the built-in basin-type insulator 3 is lower than a connecting surface of the first flange 101 or is positioned on the same horizontal plane with the connecting surface of the first flange 101, a compression ring 4 is further arranged on one side of the built-in basin-type insulator 3, and a plurality of nuts penetrate through the compression ring 4 and are in threaded connection with the concave step of the first flange 101. The core protection point of this patent is, fluting in the GIL shell flange, and basin insulator installs in the inslot, and the clamping ring is pressed on basin flange through the screw fastening on the shell flange, and the concave side installation of built-in basin insulator is a lesson connecting conductor, and particle trapper has been installed respectively to the unsmooth both sides of basin.
The basin-type insulator used for separating the air chamber in the GIL is embedded into the GIL shell, the joint of the GIL shell is provided with only one sealing surface, and meanwhile, the particle traps are arranged at the lower parts of the two sides of the basin-type insulator, so that the gas leakage risk of the GIL is reduced, and meanwhile, the operation reliability of the equipment is improved.
In a preferred scheme, an inner ring of the second flange 201 of the second housing 2 is provided with an inward concave step, and the compression ring 4 is arranged at the concave step surface position of the second flange 201.
In a preferred embodiment, a sealing ring is arranged between the built-in basin-type insulator 3 and the first flange 101.
In the preferred scheme, a sealing ring is arranged between the built-in basin-type insulator 3 and the compression ring 4.
In the preferred scheme, a stop table 302 is arranged in the center of the concave side of the built-in basin-type insulator 3, a round hole matched with the stop table 302 is formed in the connecting end of the first connecting conductor 6, and the first connecting conductor 6 and the stop table 302 are coaxially arranged.
In a preferred embodiment, the cover structure of the second connection conductor 7 is covered outside the basin center insert 301 on the convex side of the built-in basin insulator 3, and the basin center insert 301 is coaxially arranged with the second connection conductor 7.
In a preferred embodiment, the first housing 1 and the second housing 2 are internally provided with particle traps 5.
In a preferred embodiment, the particle trap 5 is a 110-130 ° fan-shaped particle trap.
Preferably, the basin convex side particle trap 501 is coupled to the first flange 101 by a plurality of nuts.
In a preferred embodiment, the basin-side particle catcher 502 is connected to the pressure ring 4 side by a plurality of nuts.
As shown in fig. 1, the structure of the present utility model is composed of a first housing 1; a second housing 2; a basin-type insulator 2 is arranged in the shell; a press ring 4; a particle catcher 5; the connection conductors constitute 6. A groove is processed in a first flange 101 of a GIL first shell 1, an embedded basin-type insulator 3 is installed in the processed groove, a pressing ring 4 is installed at a flange on the concave side of the embedded basin-type insulator 3, and the pressing ring 4 is pressed on the flange of the embedded basin-type insulator 3 and is connected and fastened with the pressing ring 4, the embedded basin-type insulator 3 and the first flange 101 through screw connection. The connecting conductor 6 is connected to the concave side of the built-in basin-shaped insulator 3 through a screw, and the stop table 302 on the central insert 301 on the concave side of the built-in basin-shaped insulator 3 is matched with the central circular through hole of the connecting conductor 6 in size, so that the coaxial installation of the connecting conductor 6 and the basin-shaped central insert 301 is ensured. The concave-convex side of the built-in basin-type insulator 3 is provided with a particle catcher with a 120-degree fan-shaped structure, the basin-concave side particle catcher 502 is fixed on the compression ring 4 through screws, and the basin-convex side particle catcher 501 is fixed on the boss of the first flange 101 through screws.
As shown in fig. 2, the flange of the built-in basin-type insulator 3 has a flat plate structure, a through hole is processed on the outer periphery of the built-in basin-type insulator 3, and a stop table 302 is processed on a center insert 301 on the concave side of the built-in basin-type insulator 3.
As shown in fig. 3, the junction of the GIL housing has only one sealing surface between the first flange 101 and the second flange 201, which reduces the risk of air leakage, the built-in basin-type insulator 3 is directly embedded into the GIL housing, which reduces the external leakage of epoxy resin material, and when the built-in basin-type insulator 3 is installed, the pressing ring 4 is installed at the flange on the concave side, and the pressing ring 4, the built-in basin-type insulator 3 and the first flange 101 are connected and fastened by screws. Thereby completing the installation of the built-in basin-type insulator 3.
As shown in fig. 4, the outer diameter of the connection conductor 6 is the same as the outer diameter of the basin center insert 301, and the electric field distribution of the concave side of the built-in basin-type insulator 3 is improved by installing a section of connection conductor 6 on the concave side of the built-in basin-type insulator 3 to advance the installation position of the contact. The central circular through hole of the connecting conductor 6 is aligned with the stop table 302 on the basin center insert 301, the connecting conductor 6 and the basin center insert 301 are ensured to be coaxially installed through size limitation, and finally the connecting conductor 6 is fixed on the concave side of the built-in basin-shaped insulator 3 through screw connection.
As shown in fig. 5, the basin-side particle catcher 502 is mounted and fixed on the press ring 4 by screw connection on the concave side of the built-in basin-type insulator 3, and the basin-side particle catcher 501 is mounted and fixed on the boss of the first flange 101 by screw connection on the convex side of the built-in basin-type insulator 3. The length of the concave particle catcher 502 is longer than that of the convex particle catcher 501, and the protection range can be from the position where the connecting conductor 6 is inserted into the contact to the root of the built-in basin-type insulator 3.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (10)
1. A built-in basin-type insulator for GIL is characterized in that: the first shell (1) is in sealing connection with the second shell (2), an inner ring of a first flange (101) of the first shell (1) is provided with an inward concave step, an outer ring of the built-in basin-type insulator (3) is arranged on the concave step surface, the surface of the built-in basin-type insulator (3) is lower than the connecting surface of the first flange (101) or is positioned on the same horizontal plane with the connecting surface of the first flange (101), a compression ring (4) is further arranged on one side of the built-in basin-type insulator (3), and a plurality of nuts penetrate through the compression ring (4) to be in threaded connection with the concave step of the first flange (101).
2. The built-in basin-type insulator for GIL according to claim 1, wherein: an inner ring of a second flange (201) of the second housing (2) is provided with an inward concave step, and a compression ring (4) is arranged at the concave step surface position of the second flange (201).
3. The built-in basin-type insulator for GIL according to claim 1, wherein: a sealing ring is arranged between the built-in basin-type insulator (3) and the first flange (101).
4. The built-in basin-type insulator for GIL according to claim 1, wherein: a sealing ring is arranged between the built-in basin-type insulator (3) and the compression ring (4).
5. The built-in basin-type insulator for GIL according to claim 1, wherein: the center of the concave side of the built-in basin-type insulator (3) is provided with a stop table (302), the connecting end of the first connecting conductor (6) is provided with a round hole matched with the stop table (302), and the first connecting conductor (6) and the stop table (302) are coaxially arranged.
6. The built-in basin-type insulator for GIL according to claim 1, wherein: the cover body structure of the second connecting conductor (7) is covered outside a basin center insert (301) on the convex side of the built-in basin insulator (3), and the basin center insert (301) and the second connecting conductor (7) are coaxially arranged.
7. The built-in basin-type insulator for GIL according to claim 1, wherein: the first shell (1) and the second shell (2) are internally provided with particle traps (5).
8. The built-in basin-type insulator for GIL according to claim 7, wherein: the particle catcher (5) is a 110-130 DEG fan-shaped particle catcher.
9. The built-in basin-type insulator for GIL according to claim 7, wherein: the basin convex side particle catcher (501) is connected with the first flange (101) through a plurality of nuts.
10. The built-in basin-type insulator for GIL according to claim 9, wherein: the basin concave side particle catcher (502) is connected with one side of the pressing ring (4) through a plurality of nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321224809.3U CN220107525U (en) | 2023-05-19 | 2023-05-19 | Built-in basin-type insulator for GIL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321224809.3U CN220107525U (en) | 2023-05-19 | 2023-05-19 | Built-in basin-type insulator for GIL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220107525U true CN220107525U (en) | 2023-11-28 |
Family
ID=88882472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321224809.3U Active CN220107525U (en) | 2023-05-19 | 2023-05-19 | Built-in basin-type insulator for GIL |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220107525U (en) |
-
2023
- 2023-05-19 CN CN202321224809.3U patent/CN220107525U/en active Active
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