CN204992464U - High pressure through -wall sleeve - Google Patents
High pressure through -wall sleeve Download PDFInfo
- Publication number
- CN204992464U CN204992464U CN201520743216.7U CN201520743216U CN204992464U CN 204992464 U CN204992464 U CN 204992464U CN 201520743216 U CN201520743216 U CN 201520743216U CN 204992464 U CN204992464 U CN 204992464U
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- conductor
- wall bushing
- voltage wall
- sleeve pipe
- adpting flange
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Abstract
The utility model provides a high pressure through -wall sleeve, including the sleeve pipe, set up in flange on the sleeve pipe and set up in overlap intraductally and pass flange's conductor, wherein, high pressure through -wall sleeve still include with the stretching device that the conductor is connected. The utility model discloses a flagging problem that the conductor arouses is overcome because of self gravity to pulling force that high pressure through -wall sleeve provided through stretching device when the non - is installed perpendicularly for the conductor can keep at sharp state when the non - is installed perpendicularly as far as possible, thereby avoids because of insulation distance shortens gaseous clearance or the surperficial problem of discharging of solid insulation that causes between conductor and the sleeve pipe, and then prevents that the sleeve pipe from receiving the damage, improves the reliability that high pressure through -wall sleeve used, simultaneously stretching device's setting also makes the utility model discloses a high pressure through -wall sleeve can cancel the insulation support spare of conductor to more effectively ensure high pressure through -wall sleeve's reliability.
Description
Technical field
The utility model relates to high voltage electrical apparatus technical field, particularly a kind of high-voltage wall bushing.
Background technology
In high voltage electrical apparatus technical field, high voltage source is passed through wall by high-voltage wall bushing exactly, guides outdoor into or guide indoor into by outdoor by indoor, or passes through the device that shell wall carries out high voltage source guiding inside and outside high-voltage switch gear or transformer.
Fig. 1 shows a kind of existing high-voltage wall bushing.As shown in Figure 1, the adpting flange 3 that existing high-voltage wall bushing comprises sleeve pipe 1, is installed on the conductor 2 of sleeve pipe 1 inside and is sheathed on conductor 2, described adpting flange 3 is arranged at the end of sleeve pipe 1, and is connected with sleeve pipe 1.In the prior art, because the length of conductor 2 is longer, when its horizontal positioned, under the impact of self gravitation, it can be bent downwardly, and as shown in Figure 2, effective insulation distance of conductor 2 to sleeve pipe 1 inwall can be caused like this to diminish, thus cause electric discharge.In order to make conductor 2 remain at linear state, even if conductor 2 and sleeve pipe 1 are in concentric circles state, usually insulator 4 is adopted to carry out radial support every a segment distance to conductor 2.
But inventor finds, when having higher voltage in conductor 2, the length due to insulator 4 is very short and be radial arrangement, makes insulator 4 surface also occur electric discharge, then damages sleeve pipe 1, reduces the reliability of high-voltage wall bushing use.
Utility model content
The purpose of this utility model is to provide a kind of high-voltage wall bushing, during to solve the non-perpendicular installation of conductor in prior art mesohigh wall bushing, and the gas gap caused because insulation distance shortens or support the electric discharge problem of insulator surface of described conductor.
For solving the problems of the technologies described above, the utility model provides a kind of high-voltage wall bushing, comprise sleeve pipe, be arranged at the adpting flange on described sleeve pipe and be arranged in described sleeve pipe and through the conductor of described adpting flange, wherein, described high-voltage wall bushing also comprises a stretching device, and described stretching device is connected with described conductor.
Preferably, in described high-voltage wall bushing, described stretching device comprises actuator and actuating member, and described actuator can drive described actuating member to implement to stretch to described conductor.
Preferably, in described high-voltage wall bushing, described actuator is an elastic component, and described elastic component to be arranged between described actuating member and adpting flange and to be in compressive state.
Preferably, in described high-voltage wall bushing, described elastic component is spring or bellows.
Preferably, in described high-voltage wall bushing, described spring is butterfly spring or coil spring.
Preferably, in described high-voltage wall bushing, described actuating member is a pressing plate.
Preferably, in described high-voltage wall bushing, described pressing plate is fixedly connected with described conductor by bolt.
Preferably, in described high-voltage wall bushing, described high-voltage wall bushing also comprises a shaft sealer, and described shaft sealer is for sealing described conductor and adpting flange.
Preferably, in described high-voltage wall bushing, described high-voltage wall bushing also comprises conducting element and water conservancy diversion row, and described conducting element is for being directed to described adpting flange by the electric current on described conductor, and described water conservancy diversion row is for leading to other equipment by the electric current on described adpting flange.
Preferably, in described high-voltage wall bushing, described high-voltage wall bushing also comprises a radome, described radome for shielding described conducting element, to make electric fields uniform near described conducting element.
In sum, high-voltage wall bushing of the present utility model overcomes by the pulling force that stretching device provides the sagging problem that conductor causes because of self gravitation when non-perpendicular installation, make conductor can remain on linear state as far as possible when non-perpendicular installation, thus avoid the electric discharge problem on gas gap or the solid insulation surface caused because insulation distance shortens between conductor and sleeve pipe, and then prevent sleeve pipe to be damaged, improve the reliability that high-voltage wall bushing uses; The setting of described stretching device, also makes high-voltage wall bushing of the present utility model can cancel the insulated support of conductor, thus more effectively guarantees the reliability of high-voltage wall bushing simultaneously;
In addition, conductor of the present utility model and adpting flange are tightly connected by shaft sealer, still sealing state can be kept when conductor is slided in shaft sealer, so, can guarantee that the dielectric filled in sleeve pipe can not be revealed, further guarantee the reliability that high-voltage wall bushing uses;
In addition, the conducting element for being directed to by the electric current on conductor on adpting flange is provided with in sleeve pipe of the present utility model, simultaneously, sleeve pipe of the present utility model is outside equipped with the water conservancy diversion row for the electric current on described adpting flange being led to other equipment, can guarantee that the conductor no current be in adpting flange external isolation media passes through by conducting element and water conservancy diversion row, thus reduce the heating at shaft sealer place, lift-off seal effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing high-voltage wall bushing;
Fig. 2 is the structural representation of conductor when horizontal positioned in existing high-voltage wall bushing;
Fig. 3 is the structural representation of the high-voltage wall bushing according to an embodiment of the present utility model.
Wherein, the description of reference numerals in Fig. 3 is as follows:
11-sleeve pipe; 12-conductor; 13-adpting flange; 14-actuator; 15-actuating member; 16-bolt; 17-shaft sealer; 17a-envelope material flange; 17b-axle sleeve; 18-conducting element; 19-water conservancy diversion is arranged.
Embodiment
The high-voltage wall bushing that the utility model provides comprises sleeve pipe, be arranged at the adpting flange on described sleeve pipe and be arranged in described sleeve pipe and through the conductor of described adpting flange, wherein, high-voltage wall bushing of the present utility model also comprises the stretching device be connected with described conductor.
The high-voltage wall bushing that the utility model provides, by arranging stretching device in one end of sleeve pipe or two ends, and utilize described stretching device by conductor-stretch, with offset conductor non-perpendicular install time self gravitation impact, conductor is made to remain on linear state as far as possible, thus guarantee the effective insulation distance between conductor and sleeve pipe, and then reduce the electric discharge probability of sleeve pipe, improve the reliability of sleeve pipe.
For making the purpose of this utility model, advantage and feature clearly, below in conjunction with accompanying drawing 3, the high-voltage wall bushing that the utility model proposes is described in further detail.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.
Consult Fig. 3, Fig. 3 is the structural representation of the high-voltage wall bushing of the utility model embodiment.
As shown in Figure 3, the high-voltage wall bushing of the present embodiment comprises sleeve pipe 11 and conductor 12, wherein, is provided with an adpting flange 13 in one end of sleeve pipe 11, and described conductor 12 stretches in sleeve pipe 11 through adpting flange 13.Described sleeve pipe 11 adopts ceramic material to make, or the synthetic material such as rubber is made.The parts that described conductor 12 is cable, copper pipe or hard aluminum pipe etc. have conducting function.
Especially, when the non-perpendicular installation of described conductor 12 (such as level is installed or is tilted to install), in order to prevent conductor 12 sagging because of self gravitation impact, the high-voltage wall bushing of the present embodiment also comprises the stretching device be connected with conductor 12, conductor 12 can stretch by described stretching device, the effect of gravity can be offset like this, make conductor 12 remain straight line as far as possible.Such as described stretching device comprises actuator 14 and actuating member 15, and described actuator 14 can be implemented to stretch by induced effect part 15 pairs of conductors 12.Described actuator 14 is preferably an elastic component, such as spring or bellows etc.Further, the elastic force of described elastic component can guarantee that conductor 12 bears the power pulling out sleeve pipe 11 all the time, thus eliminate conductor 12 because gravity cause sagging.Described spring can be metal material or nonmetallic materials.Described nonmetallic materials are such as rubber etc.The shape of described spring can be butterfly or spirality.Described actuating member 15 is preferably a pressing plate.Described pressing plate is arranged on the end of conductor 12, and is fixedly connected with conductor 12 by bolt 16.Herein, described pressing plate and elastic component are used as the object lesson of the stretching device in the utility model.Preferably, described elastic component is arranged between described pressing plate and adpting flange 13, and described elastic component is set to compressive state, the elastic restoring force of elastic component self can be utilized like this to drive described presser motion, thus pull conductor 12.
Certainly, can realize pulling the concrete structure that the stretching device of conductor 12 is not limited to disclosed in the utility model embodiment, in the prior art, other mechanism pulling this function of conductor 12 can be realized in addition, and those skilled in the art understand that described function can also adopt other alternative do not mentioned in embodiment, this mechanism does not belong to the mechanism that just can complete in a specific way.
But the stretching device of the present embodiment adopts pressing plate and to be arranged between described pressing plate and adpting flange 13 and to be in the elastic component stretching conductor 12 of compressive state, and structure is simple, and it is convenient to implement.
In the present embodiment, when selecting spring as actuator 14, the Force Calculation of described spring need consider following factor:
1) described conductor 12 is allowing under the ambient temperature used, and when when using, conductor 12 has a temperature rise, the line expansion length that described conductor 12 is maximum in whole temperature range, such as, between-40 DEG C ~+130 DEG C max line expansion length of conductor 12;
2) the line expansion length of described sleeve pipe 11 in above-mentioned whole temperature range;
3) difference of the line expansion length of described conductor 12 and sleeve pipe 11, the namely largest motion scope of described spring.
4) elastic force that will keep in balance within the scope of largest motion of described spring, and calculate the length of described spring thus.
Certainly, when calculating described spring stressed, except considering the line expansion length of conductor 12 and sleeve pipe 11, also need to consider the thickness of conductor 12 and the actual use length of conductor 12, so, correctly could calculate the length of described spring, thus guarantee the elastic force that described spring still can be kept in balance within the scope of largest motion, make conductor 12 remain at linear state.
In the present embodiment, described sleeve pipe 11 is an insulating sleeve.Described insulating sleeve is made as dielectric by insufflation gas or oil, is full of insulating gas or transformer oil in the inner chamber namely between conductor 12 and sleeve pipe 11, to play radial insulation effect.
Preferably, the high-voltage wall bushing of the present embodiment also comprises a shaft sealer 17, described shaft sealer 17 is for sealing conductor 12 and adpting flange 13, to ensure that the dielectric filled in sleeve pipe 11 can not be revealed, guarantee that the safety used is with reliable, especially when described conductor 12 slides in shaft sealer 17, can still guarantee sealing good between conductor 12 and adpting flange 13, therefore, good airproof performance.
Described shaft sealer 17 preferably includes envelope material flange 17a and is set in the axle sleeve 17b of conductor 12 outside, and described axle sleeve 17b is connected with envelope material flange 17a, and described envelope material flange 17a is connected with adpting flange 13.Preferably, described axle sleeve 17b and envelope material flange 17a is formed in one, and is a part.Preferred, be provided with sealing ring between described axle sleeve 17b and conductor 12, to realize the sealing between conductor 12 and axle sleeve 17b.
As preferred embodiment, the high-voltage wall bushing of the present embodiment also comprises the conducting element 18 be arranged in sleeve pipe 11 and the water conservancy diversion row 19 be arranged on outside sleeve pipe 11, described conducting element 18 is for being directed to adpting flange 13 by the electric current on conductor 12, described water conservancy diversion row 19 is for leading to other equipment further by the electric current on adpting flange 13, to guarantee that the conductor 12 part no current be in adpting flange 13 external isolation media (as air) passes through, thus reduce the heating at shaft sealer 17 place, like this, sealing effectiveness is better.Described conducting element 18 can comprise touch base, is provided with contact in described touch base, and described contact is connected with conductor 12 and adpting flange 13 respectively.
In preferred version, the high-voltage wall bushing of the present embodiment also comprises the radome (not shown) be arranged on conducting element 18.The shape of described radome is chosen as U-shaped rotary body, and shield effectiveness is good.Because the voltage operated on conducting element 18 is usually very high, easily cause conducting element 18 surface discharge, damage sleeve pipe 11, therefore, at the described radome of outer setting of conducting element 18, can electric field structure be optimized like this, make the electric fields uniform near conducting element 18, also can reduce the electric field strength on conducting element 18 surface simultaneously, avoid conducting element 18 to discharge on the impact of sleeve pipe 11.
Especially, the high-voltage wall bushing of the present embodiment can cancel the insulator (not shown) for radial support conductor 12, i.e. insulated support, so, the length because of described insulator can be avoided short and be radial arrangement and the insulator surface electric discharge problem that causes, thus more effectively guarantee the reliability of high-voltage wall bushing.
In sum, the high-voltage wall bushing that the utility model provides overcomes by the pulling force that stretching device provides the sagging problem that conductor causes because of self gravitation when non-perpendicular installation, make conductor can remain on linear state as far as possible when non-perpendicular installation, thus avoid the electric discharge problem on gas gap or the solid insulation surface caused because insulation distance shortens between conductor and sleeve pipe, and then prevent sleeve pipe to be damaged, improve the reliability that high-voltage wall bushing uses; And the setting of described stretching device, also make high-voltage wall bushing of the present utility model can cancel the insulated support of conductor, thus the reliability of high-voltage wall bushing is higher.
In addition, conductor of the present utility model and adpting flange are tightly connected by shaft sealer, still sealing state can be kept when conductor is slided in shaft sealer, so, can guarantee that the dielectric filled in sleeve pipe can not be revealed, further guarantee the reliability that high-voltage wall bushing uses.
In addition, the conducting element for being directed to by the electric current on conductor on adpting flange is provided with in sleeve pipe of the present utility model, simultaneously, sleeve pipe of the present utility model is outside equipped with the water conservancy diversion row for the electric current on described adpting flange being led to other equipment, can guarantee that the conductor no current be in adpting flange external isolation media passes through by conducting element and water conservancy diversion row, thus reduce the heating at shaft sealer place, lift-off seal effect.
Foregoing description is only the description to the utility model preferred embodiment; any restriction not to the utility model scope; any change that the those of ordinary skill in the utility model field does according to above-mentioned disclosure, modification, all belong to the protection range of claims.
Claims (10)
1. a high-voltage wall bushing, comprises sleeve pipe, is arranged at the adpting flange on described sleeve pipe and is arranged in described sleeve pipe and through the conductor of described adpting flange, it is characterized in that, also comprise a stretching device, described stretching device is connected with described conductor.
2. high-voltage wall bushing as claimed in claim 1, it is characterized in that, described stretching device comprises actuator and actuating member, and described actuator can drive described actuating member to implement to stretch to described conductor.
3. high-voltage wall bushing as claimed in claim 2, it is characterized in that, described actuator is an elastic component, and described elastic component to be arranged between described actuating member and adpting flange and to be in compressive state.
4. high-voltage wall bushing as claimed in claim 3, it is characterized in that, described elastic component is spring or bellows.
5. high-voltage wall bushing as claimed in claim 4, it is characterized in that, described spring is butterfly spring or coil spring.
6. the high-voltage wall bushing according to any one of claim 2 to 5, is characterized in that, described actuating member is a pressing plate.
7. high-voltage wall bushing as claimed in claim 6, it is characterized in that, described pressing plate is fixedly connected with described conductor by bolt.
8. high-voltage wall bushing as claimed in claim 1, it is characterized in that, described high-voltage wall bushing also comprises a shaft sealer, and described shaft sealer is for sealing described conductor and adpting flange.
9. the high-voltage wall bushing as described in claim 1 or 8, it is characterized in that, described high-voltage wall bushing also comprises conducting element and water conservancy diversion row, described conducting element is for being directed to described adpting flange by the electric current on described conductor, and described water conservancy diversion row is for leading to other equipment by the electric current on described adpting flange.
10. high-voltage wall bushing as claimed in claim 9, it is characterized in that, described high-voltage wall bushing also comprises a radome, described radome for shielding described conducting element, to make electric fields uniform near described conducting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520743216.7U CN204992464U (en) | 2015-09-23 | 2015-09-23 | High pressure through -wall sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520743216.7U CN204992464U (en) | 2015-09-23 | 2015-09-23 | High pressure through -wall sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN204992464U true CN204992464U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520743216.7U Active CN204992464U (en) | 2015-09-23 | 2015-09-23 | High pressure through -wall sleeve |
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| CN (1) | CN204992464U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119217A (en) * | 2015-09-23 | 2015-12-02 | 上海润京能源科技有限公司 | High-voltage wall bushing |
| CN106771410A (en) * | 2017-02-27 | 2017-05-31 | 国网上海市电力公司 | One kind passes through formula insulator pin pipe |
| CN108321741A (en) * | 2018-02-08 | 2018-07-24 | 西安交通大学 | Ultra-high/extra-high voltage gas-insulated wall bushing center current－carrying conductor stay bolt structure and ultra-high/extra-high voltage gas-insulated wall bushing |
-
2015
- 2015-09-23 CN CN201520743216.7U patent/CN204992464U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119217A (en) * | 2015-09-23 | 2015-12-02 | 上海润京能源科技有限公司 | High-voltage wall bushing |
| CN106771410A (en) * | 2017-02-27 | 2017-05-31 | 国网上海市电力公司 | One kind passes through formula insulator pin pipe |
| CN106771410B (en) * | 2017-02-27 | 2019-09-24 | 国网上海市电力公司 | One kind passing through formula insulator pin pipe |
| CN108321741A (en) * | 2018-02-08 | 2018-07-24 | 西安交通大学 | Ultra-high/extra-high voltage gas-insulated wall bushing center current－carrying conductor stay bolt structure and ultra-high/extra-high voltage gas-insulated wall bushing |
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