CN207977696U - A kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure - Google Patents
A kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure Download PDFInfo
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- CN207977696U CN207977696U CN201820458346.XU CN201820458346U CN207977696U CN 207977696 U CN207977696 U CN 207977696U CN 201820458346 U CN201820458346 U CN 201820458346U CN 207977696 U CN207977696 U CN 207977696U
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Abstract
The utility model discloses a kind of exchange wall bushings of Mixed gas insulation shape metallic leak-proof structure, including the first traffic unit and the second traffic unit, when working condition, two traffic units are separately positioned on the both sides of wall, one end of each support transitional cylinder is connect with a suit indoor-side one end, cannula center conductor is sleeved on suit and supports at the center in transitional cylinder, and the outdoor side sleeve end that one end is fixedly connected on suit covers, and the other end is slidably connected with disc insulator contact；Disc insulator is arranged at two between support transitional cylinder, and is connect respectively with two disc insulator contacts；In addition, mixed gas is filled in exchange wall bushing, as dielectric.The connection that the utility model passes through disc insulator and center conductor so that there is support at center conductor both ends.In addition, being designed with the transitional cylinder with support construction, it to be used for the fixation through walls of casing.
Description
Technical field
The utility model is related to the connection equipment in a kind of high-voltage electric power system, more particularly to a kind of Mixed gas insulation gold
Belong to the exchange wall bushing of sealing structure, be suitable for high-voltage alternating power transmission and transformation system, power supply stream is supported to lead across wall, floor
Electric part is allowed to and exterior insulation.
Background technology
Wall bushing is a kind of electric system commonly equipment, such as power line disengaging substation, is worn by wall bushing
Cross wall so that the interior of substation and outdoor effective security isolation.
Traditional wall bushing is divided into oily formula and dry sleeve.Oily formula casing mainly rolls into capacitance by oil-impregnated paper insulation
Fuse immerses transformer oil as interior insulation, and dry sleeve is mainly wound in core by electrician's crimped paper on conducting rod, after
It is impregnated by epoxy resin and is cured.Both casings all have that weight is big, production technology is complicated, the production cycle is long, insulating materials
Disadvantage easy to aging.
Utility model content
The purpose of this utility model is to provide a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure, energy
Enough solve following point：1, solve the problems, such as that existing liquid and solid insulation wall bushing production technology are complicated of high cost；2, make
It uses the mixed gas of sulfur hexafluoride and nitrogen as dielectric, the dosage of sulfur hexafluoride can be reduced, reduce greenhouse gases
Discharge；3, overcome conductor sagging problem caused by its own gravity when being horizontally mounted, ensure the energy when center conductor is very long
Normal use；Dismantling part is few when 4, transporting, installing, easy for installation.
To solve the above problems, the utility model adopts the following technical solution：
A kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure, including the first traffic unit and the second transport
Unit, the first traffic unit include first sleeve, first sleeve center conductor, the first support transitional cylinder and the first disc insulator
Contact, the second traffic unit include disc insulator, the second support transitional cylinder, the second casing, the second cannula center conductor and the
Two disc insulator contacts；Wherein,
When working condition, the first traffic unit and the second traffic unit are separately positioned on the both sides of wall, and first supported
The one end for crossing cylinder is connect with first sleeve indoor-side one end, and first sleeve center conductor is sleeved on first sleeve and first and supported
It crosses at the center in cylinder, the outdoor side sleeve end that one end is fixedly connected on first sleeve covers, and the other end and the first benzvalene form are exhausted
Edge contact is slidably connected；One end of second support transitional cylinder is connect with second casing indoor-side one end, and the other end passes through wall
It is connect with the other end of the first support transitional cylinder, the second cannula center conductor is sleeved in the second casing and the second support transitional cylinder
Center at, the outdoor side sleeve end that one end is fixedly connected on the second casing covers, and the other end and the second disc insulator touch
Head be slidably connected, disc insulator setting first support transitional cylinder and second support transitional cylinder between, and respectively with two basins
Formula insulator contact connects；In addition, mixed gas is filled in exchange wall bushing, as dielectric.
The utility model, which further improves, to be, mixed gas is sulfur hexafluoride and nitrogen, wherein sulfur hexafluoride gas
Volume ratio be 20~70%, rest part is nitrogen.
The utility model, which further improves, to be, the first traffic unit further includes in first be sleeved in first sleeve
Portion's shielding cylinder, and the first internal shield cylinder, close to first sleeve indoor-side one end, the second traffic unit further includes being sleeved on second
The second internal shield cylinder in casing, and the second internal shield cylinder is close to second casing indoor-side one end.
The utility model, which further improves, to be, which further includes wall bushing support, and setting exists
Between second support transitional cylinder bottom and wall.
The utility model, which further improves, to be, is additionally provided on the first support transitional cylinder and the second support transitional cylinder close
Degree meter and rupture pressure disc.
The utility model, which further improves, to be, the first traffic unit further includes the first support conveying cover plate, the second fortune
Defeated unit further includes the second support conveying cover plate；Wherein,
When travel position, the first traffic unit and the second traffic unit are separately positioned on the both sides of wall, and first supported
The one end for crossing cylinder is connect with first sleeve indoor-side one end, and the other end is connect with the first support conveying cover plate, first sleeve center
Conductor is sleeved at the center in first sleeve and the first support transitional cylinder, and one end is fixedly connected on the outdoor side of first sleeve
Sleeve end covers, and is connect at the other end and the center of the first support conveying cover plate；
One end of second support transitional cylinder is connect with second casing indoor-side one end, the other end and the second support conveying cover plate
Connection, the second cannula center conductor are sleeved at the center in the second casing and the second support transitional cylinder, and one end is fixedly connected
It is covered in the outdoor side sleeve end of the second casing, the other end is slidably connected with the second disc insulator contact, and disc insulator is set
It sets between the first support transitional cylinder and the second support conveying cover plate, and is connect respectively with two disc insulator contacts.
The utility model, which further improves, to be, the first traffic unit further includes in first be sleeved in first sleeve
Portion's shielding cylinder, and the first internal shield cylinder, close to first sleeve indoor-side one end, the second traffic unit further includes being sleeved on second
The second internal shield cylinder in casing, and the second internal shield cylinder is close to second casing indoor-side one end.
The utility model has following beneficial technique effect：
A kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure provided by the utility model, including casing with
And the center conductor in the casing, described center conductor one end are fixedly connected on casing open air side sleeve end and cover, separately
One end is slidably connected with disc insulator.Pass through the connection of disc insulator and center conductor so that center conductor both ends have
Support.In addition, being designed with the transitional cylinder with support construction, it to be used for the fixation through walls of casing.Also, use sulfur hexafluoride and nitrogen
Mixed gas is as dielectric, to reduce sulfur hexafluoride gas dosage.
Further, by being equipped with shielding cylinder in casing, and then internal field distribution can be improved.
Further, the support conveying cover plate with sleeve can ensure that center conductor need not remove in transport, installation letter
Just.
Further, elaterometer and rupture pressure disc can be set on support transitional cylinder.
Description of the drawings
Fig. 1 is a kind of internal structure of the exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure of the utility model
Figure.
Fig. 2 is the travel position figure for the first delivery unit that the utility model exchanges wall bushing.
Fig. 3 is the travel position figure for the second delivery unit that the utility model exchanges wall bushing.
Diagram：1- first sleeves, 2- first sleeve center conductors, 3- the first internal shield cylinders, 4- first support transitional cylinder,
5- disc insulators, the support transitional cylinders of 6- second, 7- the second internal shield cylinders, the second casings of 8-, the second cannula centers of 9- are led
Body, 10- the first disc insulator contacts, the support of 11- wall bushings, 12- the second disc insulator contacts, the first transit caps of 13-
Plate, the second conveying cover plates of 14-.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure provided by the utility model,
Including the first traffic unit and the second traffic unit, the first traffic unit include first set identification 1, first sleeve center conductor 2,
It includes that benzvalene form is exhausted that first internal shield cylinder 3, first, which supports transitional cylinder 4 and the first disc insulator contact 10, the second traffic unit,
Edge 5, second supports transitional cylinder 6, the second internal shield cylinder 7, the second casing 8, the second cannula center conductor 9 and the second benzvalene form
Insulator contact 12.
Wherein, the second casing 8 is fixed on the wall by the second support transitional cylinder 6, and wall bushing support 11 is for reinforcing
The supporting role of second support transitional cylinder 6, the first support transitional cylinder 4 support transitional cylinder 6 by the first disc insulator 5 and second
It is attached, first sleeve 1 is fixed on the first support transitional cylinder 4, first sleeve center conductor 2 and the second cannula center conductor
9 connect respectively with the first disc insulator contact 10 and the second disc insulator contact 12 and further with the first disc insulator
5 are attached.First internal shield cylinder 3 is mounted on 1 inside of first sleeve, and the second internal shield cylinder 7 is mounted on the second casing 8
On inside.
As shown in Figures 2 and 3, during transport and storage, it is two parts that wall bushing, which disintegrates,.Use band conductor support
The first conveying cover plate 13 support first sleeve center conductor 2 so that first sleeve center conductor 2 need not be removed and can be transported
And storage.Second casing 8, second support transitional cylinder 6, disc insulator 5 and the second cannula center conductor 9 are fixed together, and make
It can transport and store after being covered with the second conveying cover plate 14.
The design feature of the utility model is as follows：
(1) work of support first sleeve center conductor 2 and the second cannula center conductor 9 is played by disc insulator 5
With, it is ensured that in the case where the very long center conductor of wall bushing is long, depending condition caused by center conductor dead weight is avoided, is kept away
The case where exempting from the conductor field strength concentration through walls caused by the increase of center conductor amount of deflection.First internal shield cylinder 3 simultaneously
The field distribution that inside pipe casing is significantly improved with the second internal shield cylinder 7, reduces electric field strength.
(2) during actual shipment, the utility model accomplishes that modularization whole Transporting, scene carry out modularization installation, have
The field erected workload of reduction of effect.First sleeve 1, first sleeve center conductor 2, first support transitional cylinder 4 and the first basin
10 whole Transporting of formula insulator contact forms first delivery unit；Second casing 8, the support of the second cannula center conductor 9, second
12 whole Transporting of transitional cylinder 6, disc insulator 5 and the second disc insulator contact forms second delivery unit.
(3) the utility model designs mounting structure by the second support transitional cylinder 6 in the side flange of bobbin.Pacifying
Second delivery unit is fixed on the wall using expansion bolt first in dress, it is then that first delivery unit and the second transport is single
Installation is completed in member docking.In-site installation facilitates, and the levelness of wall bushing installation can be effectively ensured.
(4) sulfur hexafluoride and nitrogen mixed gas are filled as dielectric in, considerably reduce the use of sulfur hexafluoride
Amount.Sulfur hexafluoride is a kind of greenhouse gases for being very difficult to decompose, and reducing usage amount has great environment protection significance.Sulfur hexafluoride gas
The ratio of body is 20~70%, and the rest part of mixed gas is nitrogen.
Claims (7)
1. a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure, which is characterized in that including the first traffic unit
With the second traffic unit, the first traffic unit includes first sleeve (1), first sleeve center conductor (2), the first support transitional cylinder
(4) and the first disc insulator contact (10), the second traffic unit include disc insulator (5), the second support transitional cylinder (6),
Second casing (8), the second cannula center conductor (9) and the second disc insulator contact (12)；Wherein,
When working condition, the first traffic unit and the second traffic unit are separately positioned on the both sides of wall, the first support transitional cylinder
(4) one end is connect with first sleeve (1) indoor-side one end, and first sleeve center conductor (2) is sleeved on first sleeve (1) and
At center in one support transitional cylinder (4), the outdoor side sleeve end that one end is fixedly connected on first sleeve (1) covers, another
End is slidably connected with the first disc insulator contact (10)；One end of second support transitional cylinder (6) and the second casing (8) indoor-side
One end connects, and the other end passes through wall and the other end of the first support transitional cylinder (4) to connect, the second cannula center conductor (9) set
At the center in the second casing (8) and the second support transitional cylinder (6), one end is fixedly connected on the family of the second casing (8)
On outer side sleeve end cap, the other end is slidably connected with the second disc insulator contact (12), and disc insulator (5) is arranged first
It supports between transitional cylinder (4) and the second support transitional cylinder (6), and is connect respectively with two disc insulator contacts；In addition, exchange
Mixed gas is filled in wall bushing, as dielectric.
2. a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure according to claim 1, feature exist
In mixed gas is sulfur hexafluoride and nitrogen, wherein the volume ratio of sulfur hexafluoride gas is 20~70%, and rest part is
Nitrogen.
3. a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure according to claim 1, feature exist
In, the first traffic unit further include the first internal shield cylinder (3) being sleeved in first sleeve (1), and the first internal shield cylinder
(3) close to first sleeve (1) indoor-side one end, the second traffic unit further includes inside second be sleeved in the second casing (8)
Shielding cylinder (7), and the second internal shield cylinder (7) is close to the second casing (8) indoor-side one end.
4. a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure according to claim 1, feature exist
In, the exchange wall bushing further include wall bushing support (11), setting the second support transitional cylinder (6) bottom and wall it
Between.
5. a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure according to claim 1, feature exist
It is supported in, the first support transitional cylinder (4) and second and is additionally provided with densitometer and rupture pressure disc on transitional cylinder (6).
6. a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure according to claim 1, feature exist
In the first traffic unit further includes the first support conveying cover plate (13), and the second traffic unit further includes the second support conveying cover plate
(14)；Wherein,
When travel position, the first traffic unit and the second traffic unit are separately positioned on the both sides of wall, the first support transitional cylinder
(4) one end is connect with first sleeve (1) indoor-side one end, and the other end is connect with the first support conveying cover plate (13), first set
Tube hub conductor (2) is sleeved at the center in first sleeve (1) and the first support transitional cylinder (4), and one end is fixedly connected on
The outdoor side sleeve end of first sleeve (1) covers, and is connect at the other end and the center of the first support conveying cover plate (13)；
One end of second support transitional cylinder (6) is connect with the second casing (8) indoor-side one end, the other end and the second support transit cap
Plate (14) connects, and the second cannula center conductor (9) is sleeved at the center in the second casing (8) and the second support transitional cylinder (6),
The outdoor side sleeve end that one end is fixedly connected on the second casing (8) covers, the other end and the second disc insulator contact (12)
It is slidably connected, disc insulator (5) setting divides between the first support transitional cylinder (4) and the second support conveying cover plate (14)
It is not connect with two disc insulator contacts.
7. a kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure according to claim 6, feature exist
In, the first traffic unit further include the first internal shield cylinder (3) being sleeved in first sleeve (1), and the first internal shield cylinder
(3) close to first sleeve (1) indoor-side one end, the second traffic unit further includes inside second be sleeved in the second casing (8)
Shielding cylinder (7), and the second internal shield cylinder (7) is close to the second casing (8) indoor-side one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820458346.XU CN207977696U (en) | 2018-03-27 | 2018-03-27 | A kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820458346.XU CN207977696U (en) | 2018-03-27 | 2018-03-27 | A kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure |
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| Publication Number | Publication Date |
|---|---|
| CN207977696U true CN207977696U (en) | 2018-10-16 |
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ID=63763928
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820458346.XU Active CN207977696U (en) | 2018-03-27 | 2018-03-27 | A kind of exchange wall bushing of Mixed gas insulation shape metallic leak-proof structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676779A (en) * | 2019-08-29 | 2020-01-10 | 平高集团有限公司 | Wall bushing |
| CN112713557A (en) * | 2020-11-20 | 2021-04-27 | 华北电力大学 | Shielding and fixing integrated high-voltage end metal insert of gas insulation wall bushing |
| CN112858848A (en) * | 2021-01-06 | 2021-05-28 | 浙江大有实业有限公司电缆工程分公司 | Repairable type test overline device capable of penetrating through narrow door or narrow window |
| WO2022121873A1 (en) * | 2020-12-08 | 2022-06-16 | 平高集团有限公司 | Wall bushing |
-
2018
- 2018-03-27 CN CN201820458346.XU patent/CN207977696U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676779A (en) * | 2019-08-29 | 2020-01-10 | 平高集团有限公司 | Wall bushing |
| CN112713557A (en) * | 2020-11-20 | 2021-04-27 | 华北电力大学 | Shielding and fixing integrated high-voltage end metal insert of gas insulation wall bushing |
| WO2022121873A1 (en) * | 2020-12-08 | 2022-06-16 | 平高集团有限公司 | Wall bushing |
| CN112858848A (en) * | 2021-01-06 | 2021-05-28 | 浙江大有实业有限公司电缆工程分公司 | Repairable type test overline device capable of penetrating through narrow door or narrow window |
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