CN208738735U - A kind of gas insulated bushing end seal structure - Google Patents
A kind of gas insulated bushing end seal structure Download PDFInfo
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- CN208738735U CN208738735U CN201821653584.2U CN201821653584U CN208738735U CN 208738735 U CN208738735 U CN 208738735U CN 201821653584 U CN201821653584 U CN 201821653584U CN 208738735 U CN208738735 U CN 208738735U
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- seal
- terminal plate
- cap
- gas
- end cap
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Abstract
The utility model discloses a kind of gas insulated bushing end seal structures, including terminal plate, by army cap, conducting rod and casing cover board, the terminal plate is equipped with terminal plate flange face, and described sleeve pipe end cap is equipped with fixing ring, realizes radial seal between conducting rod and casing end cap；It is described by between army cap and casing end cap and will between army cap and terminal plate flange face be equipped with sealing ring, realize axial seal；The terminal plate flange face is overall structure, forms a seal combination with by army cap and casing end cap；The conducting rod is connect with terminal plate by terminal plate flange face.The utility model is simple for structure, easy to operate, positioning stablity, highly reliable.
Description
Technical field
The utility model relates to a kind of sealing structure, more particularly to it is a kind of with high pressure that gas is insulation, extra-high voltage casing
End seal structure belongs to electrical equipment technical field.
Background technique
The casing for using inflatable body dielectric insulation at present, runs the operating pressure used generally in the model of 0.4~0.5MPa
Enclose, the sealing means of the casing of present inflatable body dielectric insulation are essentially all radial seal, i.e., conducting rod with it is exhausted along gas
One layer or multilayer radial seal are used between edge cannula tip, sealing state is by conducting rod and along gas insulated bushing end
Between concentricity be affected, it is eccentric bigger, and the probability of long-play sealing performance failure is bigger.Bushing fortune
Capable capability and performance influences the safety of entire power transmission engineering, and most of super-pressure, extra-high voltage casing are much using gas at present
Body dielectric insulation structure type runs the operating pressure height used, and gas permeability is strong, therefore the safety requirements of power transmission engineering must
It must guarantee the reliability service of the casing of gas medium insulation.
Summary of the invention
Technical problem to be solved in the utility model is in view of the defects existing in the prior art, to provide a kind of reliable for operation
High pressure gas insulating sleeve end seal structure.
In order to solve this technical problem, the utility model provides a kind of gas insulated bushing end seal structure, including
Terminal plate, by army cap, conducting rod and casing cover board, the terminal plate is equipped with terminal plate flange face, and described sleeve pipe end cap is equipped with
Fixing ring realizes radial seal between conducting rod and casing end cap；It is described will be between army cap and casing end cap and general
It is equipped with sealing ring between cap and terminal plate flange face, realizes axial seal；The terminal plate flange face is overall structure, with general
Cap and casing end cap form a seal combination；The conducting rod is connect with terminal plate by terminal plate flange face.
The conducting rod is connect with terminal plate flange face using fingertip spring, or using threaded connection.
Described sleeve pipe end cap is equipped with the seal groove along the radial accommodating sealing material of conducting rod, and the seal groove is that V-type is close
Sealing groove, O-shaped seal groove or T-type seal groove；The fixing ring being arranged in above-mentioned seal groove is corresponding V-shaped seal ring, O
Type sealing ring or T-type sealing ring.
The terminal plate flange face and will between the upper flange surface of army cap be equipped with it is one or multi-channel accommodating sealing material it is close
Sealing groove, the seal groove is interior to accommodate sealing ring, and the sealing ring is O-ring seal or sealing plain cushion；Army cap and terminal plate are led to
Terminal plate flange face is crossed to be bolted with realization.
Described sleeve pipe end cap and the seal groove that one or multi-channel accommodating sealing material will be equipped between the lower flange face of army cap,
Sealing ring is accommodated in the seal groove, the sealing ring is O-ring seal or sealing plain cushion；It will make between army cap and casing end cap
It is connected with.
The gas working dielectric is sulfur hexafluoride gas, nitrogen or nitrogen and sulfur hexafluoride gas mixture.
The gas insulated bushing is that gas is major insulation GIS casing, wall bushing, bushing shell for transformer or gas
For supplementary insulation GIS dry sleeve, dry sleeve through walls, dry sleeve of transformer.
The utility model has the advantages that the utility model uses radial seal and axial seal double-layer seal, i.e., in casing end cap and conduction
Between bar use radial seal, casing end cap and will between army cap and terminal plate use flat seal, that is, axial seal, gas
Sealing state is good, ne-leakage phenomenon, is particularly suitable for the high sealing of gas medium operating pressure, and gas Jie is effectively guaranteed
The bobbin seal reliability of matter insulation, substantially reduces the probability of casing long-play sealing performance failure.The utility model knot
Structure is succinct, easy to operate, positioning stablity, highly reliable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1 terminal plate, 2 fingertip springs, 3 are by army cap, 4 conducting rods, 5 fixing rings, 6 casing cover boards, 7 gas works
Make medium, 8 casing flanges, 9 sealing rings, 10 terminal plate flange faces.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawings and embodiments.
Fig. 1 show the structural schematic diagram of the utility model.
The utility model provides a kind of gas insulated bushing end seal structure, including terminal plate 1, by army cap 3, conductive
Bar 4 and casing cover board 6, it is close with the combined type for using radial seal to combine with axial seal between conducting rod 4 in casing end cap 6
Seal structure.
The terminal plate 1 is equipped with terminal plate flange face 10.
Described sleeve pipe end cap 6 is equipped with fixing ring 5, and radial seal is realized between conducting rod 4 and casing end cap 6, right
First layer sealing is carried out between conducting rod 4 and casing end cap 6, while playing the role of being centered about to conducting rod 4.
It is described by between army cap 3 and casing end cap 6 and will between army cap 3 and terminal plate flange face 10 be equipped with sealing ring
9, axial seal is realized, to progress second layer sealing between conducting rod 4 and casing end cap 6.
The terminal plate flange face 10 is overall structure, forms a seal combination with by army cap 3 and casing end cap 6,
Guarantee the reliability of sealing structure.
The conducting rod 4 is connect with terminal plate 1 by terminal plate flange face 10.
Described sleeve pipe flange 8 is connected by screw bolts with casing end cap 6.
The conducting rod 4 is connect with terminal plate flange face 10 using fingertip spring 2, or using threaded connection.
Described sleeve pipe end cap 6 is equipped with the seal groove along the radial accommodating sealing material of conducting rod, and the seal groove is that V-type is close
Sealing groove, O-shaped seal groove or T-type seal groove；The fixing ring 5 accommodated in above-mentioned seal groove is corresponding V-shaped seal ring, O
Type sealing ring or T-type sealing ring or other can realize the sealing structure of radial seal.
The terminal plate flange face 10 and one or multi-channel accommodating sealing material will be equipped between the upper flange surface of army cap 3
Seal groove, the interior accommodating sealing ring 9 of the seal groove carries out axial seal, described that army cap 3 and terminal plate 1 are passed through terminal plate flange face
10 uses are bolted.
Described sleeve pipe end cap 6 and the sealing that one or multi-channel accommodating sealing material will be equipped between the lower flange face of army cap 3
Slot, accommodating sealing ring 9 carries out axial seal in the seal groove, it is described by between army cap 3 and casing end cap 6 using being bolted.
The sealing ring 9 is O-ring seal or sealing plain cushion.
The gas working dielectric 7 is sulfur hexafluoride gas, nitrogen or nitrogen and sulfur hexafluoride gas mixture.
The gas insulated bushing is that gas is major insulation GIS casing, wall bushing, bushing shell for transformer or gas
For supplementary insulation GIS dry sleeve, dry sleeve through walls, dry sleeve of transformer.
The utility model is used using radial seal and axial seal double-layer seal between casing end cap and conducting rod
Radial seal, casing end cap and will use flat seal, that is, axial seal between army cap and terminal plate, air seal state is good
Good, ne-leakage phenomenon is particularly suitable for the high sealing of gas medium operating pressure, and the set of gas medium insulation is effectively guaranteed
Seal of tube reliability substantially reduces the probability of casing long-play sealing performance failure.The utility model is simple for structure, operation
Simply, positioning stablity, highly reliable.
The utility model the embodiment above, is merely illustrative, be not it is only, it is all in the scope of the utility model
Or the change in equivalent the scope of the utility model is surrounded by the utility model.
Claims (7)
1. a kind of gas insulated bushing end seal structure, it is characterised in that: including terminal plate (1), by army cap (3), conducting rod
(4) and casing end cap (6), the terminal plate (1) are equipped with terminal plate flange face (10), and described sleeve pipe end cap (6) is equipped with abnormal shape
Sealing ring (5) realizes radial seal between conducting rod (4) and casing end cap (6)；It is described by army cap (3) and casing end cap (6) it
Between and will between army cap (3) and terminal plate flange face (10) be equipped with sealing ring (9), realize axial seal；The terminal plate method
Blue face (10) is overall structure, forms a seal combination with by army cap (3) and casing end cap (6)；The conducting rod (4) with
Terminal plate (1) is connected by terminal plate flange face (10).
2. gas insulated bushing end seal structure according to claim 1, it is characterised in that: the conducting rod (4) with
Terminal plate flange face (10) is connected using fingertip spring (2), or using threaded connection.
3. gas insulated bushing end seal structure according to claim 1, it is characterised in that: described sleeve pipe end cap (6)
Equipped with the seal groove along the radial accommodating sealing material of conducting rod, the seal groove is V-seal slot, O-shaped seal groove or T
Type seal groove；The fixing ring (5) being arranged in above-mentioned seal groove is that corresponding V-shaped seal ring, O-ring seal or T-type are close
Seal.
4. gas insulated bushing end seal structure according to claim 1, it is characterised in that: the terminal plate flange face
(10) and by between the upper flange surface of army cap (3) be equipped with it is one or multi-channel accommodating sealing material seal groove, the seal groove content
It sets sealing ring (9), the sealing ring (9) is O-ring seal or sealing plain cushion；Army cap (3) and terminal plate (1) are passed through into wiring
Plate flange face (10) is bolted with realization.
5. gas insulated bushing end seal structure according to claim 1, it is characterised in that: described sleeve pipe end cap (6)
With by the seal groove equipped with one or multi-channel accommodating sealing material between the lower flange face of army cap (3), the interior accommodating of the seal groove is close
Seal (9), the sealing ring (9) are O-ring seal or sealing plain cushion；Spiral shell will be used between army cap (3) and casing end cap (6)
It tethers and connects.
6. gas insulated bushing end seal structure according to claim 1, it is characterised in that: the gas working dielectric
It (7) is sulfur hexafluoride gas, nitrogen or nitrogen and sulfur hexafluoride gas mixture.
7. gas insulated bushing end seal structure according to claim 1-6, it is characterised in that: the gas
Body insulating sleeve be gas be major insulation GIS casing, wall bushing, bushing shell for transformer or gas be supplementary insulation GIS dry type
Casing, dry sleeve through walls, dry sleeve of transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821653584.2U CN208738735U (en) | 2018-10-12 | 2018-10-12 | A kind of gas insulated bushing end seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821653584.2U CN208738735U (en) | 2018-10-12 | 2018-10-12 | A kind of gas insulated bushing end seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208738735U true CN208738735U (en) | 2019-04-12 |
Family
ID=66035143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821653584.2U Active CN208738735U (en) | 2018-10-12 | 2018-10-12 | A kind of gas insulated bushing end seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208738735U (en) |
-
2018
- 2018-10-12 CN CN201821653584.2U patent/CN208738735U/en active Active
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