CN204290209U - A kind of dock alternating current-direct current wall bushing - Google Patents
A kind of dock alternating current-direct current wall bushing Download PDFInfo
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- CN204290209U CN204290209U CN201420662810.9U CN201420662810U CN204290209U CN 204290209 U CN204290209 U CN 204290209U CN 201420662810 U CN201420662810 U CN 201420662810U CN 204290209 U CN204290209 U CN 204290209U
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Abstract
The utility model provides a kind of dock alternating current-direct current wall bushing, comprise laboratory's end sleeve pipe, climatic chamber end sleeve pipe and middle docking air chamber, laboratory's end sleeve pipe, climatic chamber end sleeve pipe dock air chamber outside and adopt Flange joint with centre, interior insulation is the concentric column capacitor core of two polypropylene films windings that split manufactures, and adopts plug-ins docking in the middle of two capacitor cores; Laboratory's end sleeve pipe and climatic chamber end sleeve pipe adopt composite insulator, fill SF6 insulating gas in sleeve pipe, two flanges installed by middle docking air chamber and is fixed on body of wall by sleeve pipe entirety, and sleeve pipe can suitably movement on a flange wherein; The utility model adopts split manufacture, and middle plug-in docking, meets climatic chamber and carry out interchange 1100kV, direct current ± 1100kV test requirements document, is convenient to manufacture production, transport, install simultaneously.
Description
Technical field
The utility model belongs to electric power electric field, relates to a kind of dock alternating current-direct current wall bushing.
Background technology
Along with the fast development of China's economy, electrical network scale constantly expands, the continuous increase of capacity, running environment constantly complicated, and many investigation tests need complete in laboratory, therefore needs the testing equipment being equipped with respective capabilities in laboratory.
Phjytotron, also known as environment storehouse (environmental chamber), is can the airtight equipment be isolated from the outside of the factor such as Artificial Control temperature, humidity, wind speed, cleanliness factor, air pressure and gas componant.High voltage test phjytotron is not by the restriction of the extraneous natural conditions such as geographical position, seasonal conditions, can the weather environment of the various complexity such as manual simulation's temperature, wind speed, rainfall, air pressure, scientific research weather on the impact of high-tension apparatus, and carries out test and study to the characteristic of the different high-tension apparatuses be under the external environments such as different filthy condition, different icing situation, different atmospheric conditions.Climatic chamber needs wall bushing to pass wall or floor is introduced, extracted current, and plays insulating effect to outside.Because this climatic chamber need carry out the test exchanging 1100kV, direct current ± 1100kV, voltage when wall bushing must meet interchange, DC experiment provides, and does not still have a kind of wall bushing that can meet phjytotron voltage, current requirements at present.
Utility model content
The purpose of this utility model is to provide a kind of dock alternating current-direct current wall bushing, for climatic chamber carry out extra-high-voltage alternating current, DC experiment provides voltage, current delivery.
For achieving the above object, the utility model by the following technical solutions:
A kind of dock alternating current-direct current wall bushing, comprise laboratory's end sleeve pipe, climatic chamber end sleeve pipe and middle docking air chamber, laboratory's end sleeve pipe, climatic chamber end sleeve pipe dock air chamber outside and adopt Flange joint with centre, interior insulation is the concentric column capacitor core of two polypropylene films windings that split manufactures, and adopts plug-ins docking in the middle of two capacitor cores; Laboratory's end sleeve pipe and climatic chamber end sleeve pipe adopt composite insulator, fill SF in sleeve pipe
6insulating gas, two flanges is installed by middle docking air chamber and is fixed on body of wall by sleeve pipe entirety, and sleeve pipe can suitably movement on a flange wherein.
Adopt plug-in docking in the middle of described two capacitor cores, joint adopts pressure-equalizing device to shield.
The two-section contact tube current-carrying that described sleeve pipe adopts center to arrange, current-carrying bar two ends by spring contact to be connected with two-section contact tube realize through-flow.
In described sleeve pipe, insulation adopts four-point supporting, and clamped by enclasp device in the middle part of interior insulation, interior insulation is fixed on sleeve pipe by the flange of enclasp device; Be provided with locating flange in sleeve pipe, give supporting and location by locating flange to insulation in sleeve pipe, interior insulation two ends are positioned on current-carrying contact tube by centring ring.
Described laboratory end sleeve pipe is connected outdoor head connector and indoor head connector respectively with climatic chamber end sleeve pipe two ends, and indoor, outdoor head connector includes grading ring, terminal block, conductive seal head, cover plate and sealing clamp; The head periphery of hollow combined insulator is provided with mucilage binding flange and cover plate is fixed, and cover plate central is provided with the through hole passed for contact tube, and sealing clamp is installed in cover plate upper end, arranges the sealing of axle portion between sealing clamp and contact tube; Conductive seal head is connected the sealing being realized bushing head by sealing ring with cover plate; Realized the conducting of electric current by spring contact between contact tube and conductive seal head; The conducting being fixed on and conductive seal head realizing electric current held tightly by terminal block; Grading ring is fixing on the cover board;
Described laboratory sleeve pipe, climatic chamber sleeve pipe dock air chamber respectively and arrange stripper rubber flat seal with centre, middle docking air chamber is provided with to support to breathe out and holds up flange for the support and connection of climatic chamber end sleeve pipe.
In the middle of described, docking air chamber is provided with operating window.
Real-Time Monitoring SF is equipped with in the middle of described, docking air chamber
6the monitoring device of gas pressure.
The SF of 0.35 ~ 0.45MPa is filled in described sleeve pipe
6insulating gas.
The utility model adopts split manufacture, and middle plug-in docking, meets climatic chamber and carry out interchange 1100kV, direct current ± 1100kV test requirements document, is convenient to manufacture production, transport, install simultaneously.
Further, sleeve pipe external insulation adopts composite sheath, and interior insulation adopts the capacitor core of film, two ends are furnished with grading ring and all press shielding to end, middle adopt two flanges to be fixed on body of wall by sleeve pipe, sleeve pipe can suitable displacement on a flange, and elimination temperature deformation stress is on the impact of body of wall.
Further, sleeve pipe external insulation adopts composite sheath, and composite sheath has ultraviolet-resistant aging superior performance, anti-blown sand deteriorates superior performance, temperature difference resistance can be superior, and the operating temperature range of silicon rubber is extremely wide, there is better hydrophobicity, and lightweight, anti-ly to collide with, be convenient to install.
Further, in sleeve pipe, insulation adopts the fixing of four-point supporting, particularly clamping device, and interior insulation deadweight can be applied on casing flange by clamping device, thus greatly reduce the distortion of composite sheath, the long-time running of sleeve pipe is more reliable.
Accompanying drawing explanation
Fig. 1 is contour structures schematic diagram of the present utility model;
Fig. 2 is indoor, outdoor head connector structural representation of the present utility model;
Fig. 3 is interior insulation docking structure schematic diagram in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model done and more at large describe.
As shown in Figure 1, the utility model dock alternating current-direct current wall bushing, the testing equipment exchanging 1100kV, direct current ± 1100kV test is carried out for climatic chamber, employing split manufactures, comprise in the middle of laboratory's end sleeve pipe 1, climatic chamber end sleeve pipe 3, middle docking air chamber 2, two split sleeve pipe utilizes plug-in to dock in intermediary's docking air chamber.
Laboratory's end sleeve pipe 1, climatic chamber end sleeve pipe 3 dock air chamber 2 outside and adopt Flange joint with centre, interior insulation is the concentric column capacitor core of two polypropylene films windings that split manufactures, and adopts plug-in docking in the middle of two capacitor core 2-1; Laboratory's end sleeve pipe 1 and climatic chamber end sleeve pipe 3 adopt composite insulator, fill the SF of 0.35 ~ 0.45MPa in sleeve pipe
6insulating gas, two flanges is installed by middle docking air chamber 2 and is fixed on body of wall by sleeve pipe entirety, and sleeve pipe can wherein a flange move.Adopt plug-in docking in the middle of two capacitor core 2-1, joint adopts pressure-equalizing device 15 to shield.
The two-section contact tube current-carrying that sleeve pipe adopts center to arrange, current-carrying bar 2-3 two ends by spring contact 6 to be connected with two-section contact tube realize through-flow.
If Fig. 2 is indoor, outdoor head connector structural representation, comprise 1-1 grading ring, 1-2. terminal block, 4. lock washer, 5. conductive seal head, 6. spring contact, 7. trip bolt, 11. cover plates, 14 composite sheath mucilage binding flanges, 15. pressure-equalizing devices, 7. trip bolt, 18. sealing rings, 21. sealing clamps.
Cover plate 11 is connected with the gluey flange 14 of composite sheath by fastening bolt 12, lock washer 4, middle by sealing ring 18 realization sealing; Sealing clamp 21 is connected with cover plate 11 by fastening bolt 24, lock washer 4, and centre realizes axial seal by sealing ring 18; Conductive seal head 5 is connected with cover plate 11 by trip bolt 7, lock washer 4, middle by sealing ring 18 realization sealing, realizes through-flow by spring contact 6 simultaneously; Terminal block 1-2 is connected with conductive seal head 5 by fastening bolt 1-3, lock washer 4, realizes through-flow; Grading ring 1-1 is fixed on cover plate 11 by fastening bolt, lock washer 4, plays a part all to press shielding to bushing head.
If Fig. 3 is interior insulation docking structure schematic diagram; Comprise 2-1. capacitor core, 2-2. guide cone, 2-3. current-carrying bar, 2-4. base, 6. spring contact, 2-6. guide holder, 2-2. guide cone, 2-1. capacitor core.
Sleeve pipe main insulation adopts in the middle of two split sleeve pipes and utilizes spring contact 6 to carry out plug-in docking; Current-carrying bar 2-3 is fixed on the base 2-4 of one end sleeve pipe by trip bolt 7, lock washer 4; Current-carrying bar 2-3 two ends are connected with the centre pipe of two sleeve pipes by spring contact 6, realize through-flow; Guide holder 2-6, guide cone 2-2 lead when playing docking; Pressure-equalizing device 15 is fixed on base 2-4 plays by trip bolt 7, lock washer 4 and shields all pressure effects.
Laboratory's end insulating case mucilage binding flange is connected by trip bolt, lock washer, nut with branch sleeve, centre realizes flat seal by sealing ring, laboratory's end branch sleeve is connected by trip bolt, lock washer, nut with climatic chamber upper flanges, and centre realizes flat seal by sealing ring; Climatic chamber end insulating case mucilage binding flange is connected by trip bolt, lock washer, nut with branch sleeve, centre realizes flat seal by sealing ring, weather end branch sleeve is connected by trip bolt, lock washer, nut with climatic chamber upper flanges, and centre realizes flat seal by sealing ring;
Laboratory end branch sleeve and weather end branch sleeve are equipped with measurement thread guide devices, and being used for the dielectric loss of measurement sleeve pipe, office puts and capacitance; Docking air chamber is provided with SF
6pressure monitoring device, carries out Real-Time Monitoring when sleeve pipe runs, the dependable performance of packaging sleeve pipe, and docking air chamber is provided with operating window, is convenient to the docking operation of sleeve pipe two split part.
Support on docking air chamber is breathed out and is held up flange to be fixed in the main body of docking air chamber, for the support and connection of climatic chamber end sleeve pipe by trip bolt, lock washer, nut.
In sleeve pipe, insulation adopts four-point supporting, first interior insulation is clamped at middle part by clamping device, and interior insulation is fixed on branch sleeve by the flange of clamping device by recycling trip bolt, lock washer; Be designed with location-plate in branch sleeve bottom, supporting and location is given to insulation in sleeve pipe; Interior insulation two ends by centring ring, alignment pin, are positioned on current-carrying inner catheter, can slippage, and upper and lower supporting and location point has been installed pressure-equalizing device, play a part all to press shielding to supporting and location part.
Climatic chamber test relates to the weather environment of various complexity, higher to climatic chamber end sleeve pipe insulating requirements, the concentric cylinder adopting polypropylene film to be wound around manufactures insulation in sleeve pipe, can well reduce sleeve pipe overall weight, and it is complicated to solve existing voltage levels process for producing casing, the problem that the production cycle is long.
Dock alternating current-direct current wall bushing of the present utility model, sleeve pipe overall length is longer, adopts split manufacture, and the mentality of designing of middle plug-in docking, is convenient to the realization of product manufacture, transport, installation.Be designed with positioning and guiding during docking, avoid damaging internal equalizer.
Sleeve pipe external insulation adopts composite sheath, composite sheath has ultraviolet-resistant aging superior performance, anti-blown sand deteriorates superior performance, temperature difference resistance can be superior, the operating temperature range of silicon rubber is extremely wide, has better hydrophobicity, and lightweight, anti-ly to collide with, be convenient to install.
Insulation adopts the concentric column capacitor core that polypropylene film is wound around in sleeve pipe, and carries out layering with material contracting with heat and fix.Polypropylene film has has better ductility than cable paper, adopts the wide film overlap joint of 90mm to be wound around, can not cause the cracking of interior insulation, can meet the requirement that sleeve pipe office puts and runs reliably and with long-term.The middle aluminium foil that adopts, as screening electrodes, is filled the SF6 insulating gas of 0.35-0.45MPa, is had good insulation property after evacuation processes,
Sleeve pipe two ends are furnished with the grading ring that diameter is 2 meters, all press shielding to cannula tip, and sleeve pipe is fixed on body of wall by middle employing two flanges, and select larger grading ring covering body of wall to shield.
Insulation adopts four-point supporting in sleeve pipe, and by enclasp device by interior insulation middle part clamping, then be fixed on flange by two flanges of enclasp device by interior insulation, interior insulation two ends are positioned on fluid-carrying tubes, can slippage, satisfied requirement of expanding with heat and contract with cold.Fixing of enclasp device, can be applied to interior insulation deadweight on casing flange by enclasp device, thus greatly reduce the distortion of composite sheath, reduce skew.
Wall bushing technical parameter:
One, exchange
1, rated voltage: 1200kV;
2, rated current: 630A;
3、BIL/SIL/AC(30min)：3600/2400/1320kV
4, office discharges water flat: be not more than 5pC under 1200kV/ √ 3 voltage;
5, dielectric loss: be not more than 0.004. under 1200kV/ √ 3 voltage
Two, direct current
1, rated voltage ± 1100kV;
2, DC break down voltage: ± 1400kV, duration 2h.
Because electric pressure is high, the overall manufacturing dimension of wall bushing is large, length long, install inconvenience, therefore adopts split manufacture, and middle plug-in docking, is convenient to the realization of manufacture technics, transport, installation.Be designed with positioning and guiding during docking, can avoid damaging internal equalizer.Sleeve pipe external insulation adopts composite sheath, interior insulation adopts the capacitor core of film, the SF6 insulating gas of central filler 0.35 ~ 0.45MPa, two ends are furnished with grading ring and all press shielding to end, sleeve pipe is fixed on body of wall by middle employing two flanges, sleeve pipe can suitable displacement on a flange, eliminates temperature deformation stress to the impact of body of wall.
Claims (8)
1. a dock alternating current-direct current wall bushing, it is characterized in that: comprise laboratory's end sleeve pipe (1), climatic chamber end sleeve pipe (3) and middle docking air chamber (2), laboratory's end sleeve pipe (1), climatic chamber end sleeve pipe (3) dock air chamber (2) outside and adopt Flange joint with centre, interior insulation is the concentric column capacitor core of two polypropylene films windings that split manufactures, and adopts plug-ins docking in the middle of two capacitor cores (2-1); Laboratory's end sleeve pipe (1) and climatic chamber end sleeve pipe (3) adopt composite insulator, fill SF in sleeve pipe
6insulating gas, sleeve pipe entirety is fixed on body of wall by upper installation two flanges of middle docking air chamber (2), and sleeve pipe can wherein a flange move.
2. dock alternating current-direct current wall bushing according to claim 1, is characterized in that: adopt plug-in docking in the middle of described two capacitor cores (2-1), and joint adopts pressure-equalizing device (15) to shield.
3. dock alternating current-direct current wall bushing according to claim 1, it is characterized in that: the two-section contact tube current-carrying that described sleeve pipe adopts center to arrange, current-carrying bar (2-3) two ends by spring contact (6) be connected with two-section contact tube realize through-flow.
4. the dock alternating current-direct current wall bushing according to any one of claim 1-3, is characterized in that: in described sleeve pipe, insulation adopts four-point supporting, and clamped by enclasp device in the middle part of interior insulation, interior insulation is fixed on sleeve pipe by the flange of enclasp device; Be provided with locating flange in sleeve pipe, give supporting and location by locating flange to insulation in sleeve pipe, interior insulation two ends are positioned on current-carrying contact tube by centring ring.
5. the dock alternating current-direct current wall bushing according to any one of claim 1-3, it is characterized in that: described laboratory's end sleeve pipe (1) is connected outdoor head connector and indoor head connector respectively with climatic chamber end sleeve pipe (3) two ends, and indoor, outdoor head connector includes grading ring, terminal block, conductive seal head (5), cover plate (11) and sealing clamp (21); The head periphery of hollow combined insulator is provided with mucilage binding flange and cover plate (11) is fixed, cover plate (11) center is provided with the through hole passed for contact tube, sealing clamp (21) is installed in cover plate (11) upper end, arranges axle portion and seal between sealing clamp (21) and contact tube; Conductive seal head is connected with cover plate (11) sealing being realized bushing head by sealing ring; Realized the conducting of electric current by spring contact between contact tube and conductive seal head; The conducting being fixed on and conductive seal head realizing electric current held tightly by terminal block; Grading ring (1-1) is fixed on cover plate (11).
6. the dock alternating current-direct current wall bushing according to any one of claim 1-3, is characterized in that: in the middle of described, docking air chamber (2) is provided with operating window.
7. the dock alternating current-direct current wall bushing according to any one of claim 1-3, is characterized in that: in the middle of described, Real-Time Monitoring SF is equipped with in docking air chamber (2)
6the monitoring device of gas pressure.
8. the dock alternating current-direct current wall bushing according to any one of claim 1-3, is characterized in that: the SF filling 0.35 ~ 0.45MPa in described sleeve pipe
6insulating gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662810.9U CN204290209U (en) | 2014-11-06 | 2014-11-06 | A kind of dock alternating current-direct current wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662810.9U CN204290209U (en) | 2014-11-06 | 2014-11-06 | A kind of dock alternating current-direct current wall bushing |
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|---|---|
| CN204290209U true CN204290209U (en) | 2015-04-22 |
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| CN201420662810.9U Active CN204290209U (en) | 2014-11-06 | 2014-11-06 | A kind of dock alternating current-direct current wall bushing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977887A (en) * | 2016-06-01 | 2016-09-28 | 中国西电电气股份有限公司 | Inflatable extra-high voltage direct current through-the-wall bushing |
| WO2018032716A1 (en) * | 2016-08-15 | 2018-02-22 | 江苏智达高压电气有限公司 | Ultra-high voltage wall bushing with sf6 gas insulation |
| CN107887865A (en) * | 2017-09-22 | 2018-04-06 | 平高集团有限公司 | A kind of New type through-wall sleeve component |
| CN108736409A (en) * | 2018-07-27 | 2018-11-02 | 山东彼岸电力科技有限公司 | A kind of gas wall bushing |
| CN112735702A (en) * | 2020-12-03 | 2021-04-30 | 全球能源互联网研究院有限公司 | Direct current sleeve pressure-equalizing device based on low-conductivity temperature coefficient epoxy composite material |
| CN114050532A (en) * | 2021-09-22 | 2022-02-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 800kV flexible direct-current wall bushing |
-
2014
- 2014-11-06 CN CN201420662810.9U patent/CN204290209U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977887A (en) * | 2016-06-01 | 2016-09-28 | 中国西电电气股份有限公司 | Inflatable extra-high voltage direct current through-the-wall bushing |
| WO2018032716A1 (en) * | 2016-08-15 | 2018-02-22 | 江苏智达高压电气有限公司 | Ultra-high voltage wall bushing with sf6 gas insulation |
| CN107887865A (en) * | 2017-09-22 | 2018-04-06 | 平高集团有限公司 | A kind of New type through-wall sleeve component |
| CN108736409A (en) * | 2018-07-27 | 2018-11-02 | 山东彼岸电力科技有限公司 | A kind of gas wall bushing |
| CN112735702A (en) * | 2020-12-03 | 2021-04-30 | 全球能源互联网研究院有限公司 | Direct current sleeve pressure-equalizing device based on low-conductivity temperature coefficient epoxy composite material |
| CN114050532A (en) * | 2021-09-22 | 2022-02-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 800kV flexible direct-current wall bushing |
| WO2023045055A1 (en) * | 2021-09-22 | 2023-03-30 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 800 kv flexible direct-current wall bushing |
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