CN109887689A - A kind of extra-high voltage grading shield - Google Patents

A kind of extra-high voltage grading shield Download PDF

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Publication number
CN109887689A
CN109887689A CN201910280407.7A CN201910280407A CN109887689A CN 109887689 A CN109887689 A CN 109887689A CN 201910280407 A CN201910280407 A CN 201910280407A CN 109887689 A CN109887689 A CN 109887689A
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China
Prior art keywords
center
connecting portion
pole
extra
grading shield
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Application number
CN201910280407.7A
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Chinese (zh)
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CN109887689B (en
Inventor
陈松涛
李东鑫
杨騉
赵科
吴串国
刘巍
高山
杨景刚
马勇
丁然
李洪涛
王静君
刘通
刘咏飞
刘媛
李玉杰
宋思齐
肖焓艳
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State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd, Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201910280407.7A priority Critical patent/CN109887689B/en
Publication of CN109887689A publication Critical patent/CN109887689A/en
Application granted granted Critical
Publication of CN109887689B publication Critical patent/CN109887689B/en
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Abstract

The invention discloses a kind of extra-high voltage grading shields, including skeleton, center-pole and aluminium foil, the skeleton includes circular ring shape upper end cover, the circular ring shape lower cover for being placed in bottom corresponding with the circular upper lid, the circular ring shape upper end cover and round lower cover are fixed by being placed in several support ribs of side, the upper end cover, two connecting rods are respectively set on lower cover, the connecting rod is crossed to form interconnecting piece, the connecting portion is in upper end cover, it is arranged at lower cover center, the center-pole both ends and it is described on, the interconnecting piece of lower cover cooperates, the aluminium foil is placed in the surface of the skeleton.Extra-high voltage grading shield of the present invention is light-weight, using the structure convenient transportation of lantern-shaped, does not need on-site consolidation, only need to open and can use at the scene.

Description

A kind of extra-high voltage grading shield
Technical field
The present invention relates to high-voltage electrical appliances fields, and in particular to a kind of extra-high voltage grading shield.
Background technique
Grading shield is mounted at AC or DC high pressure, can eliminate or reduce point discharge or corona, is a kind of key High voltage device.Grading shield usually has a smooth conductive surface, while with using increasing for voltage, surface curvature radius It is bigger.It therefore is usually several meters in the grading shield diameter that extra-high voltage field uses, whole Transporting and in-site installation are very difficult.It fills Gas formula grading shield can be shunk, and partially solve transport and installation question, but general inflatable grading shield outer surface is using conductive Rubber is as conductive layer is pressed, and resistivity is larger, and equalizing effect is bad.This other gas filled type grading shield inflationtime is long, inflatable body It is easy aging rupture.
Summary of the invention
Goal of the invention: for overcome the deficiencies in the prior art, the present invention provides a kind of extra-high voltage grading shield, which can be with The technical issues of solving the transport of extra-high voltage grading shield and installation.
Technical solution: extra-high voltage grading shield of the present invention, the grading shield be in lantern-shaped structure, including skeleton, in Core bar and aluminium foil, the skeleton include circular ring shape upper end cover, corresponding with the circular upper lid are placed under the circular ring shape of bottom End cap, the circular ring shape upper end cover and round lower cover are fixed by being placed in several support ribs of side, the center-pole both ends With the upper and lower end caps secure fit, the aluminium foil is placed in the surface of the skeleton, the upper end cover and lower cover using elasticity Non-magnetic metal material is made.
Preferably, the center-pole is scalable, and both ends are fixed with the first connecting portion and second connecting portion respectively pacifies Dress, when in use, the center-pole is contraction state, when needing to transport, the center-pole is elongation state, the support rib It stretches, grading shield is reduced into cylinder.
Preferably, the both ends of the center-pole are respectively arranged with hook, the hook at both ends and first connecting portion and second Interconnecting piece cooperation buckle, when in use, the center-pole is hooked in the first connecting portion and second connecting portion, when needing to transport When, the center-pole is removed, support rib stretches, and grading shield is reduced into cylinder.
Preferably, along the first connecting rod for being arranged radially two intersections of annulus on the upper end cover, intersection is formed First connecting portion, along the second connecting rods of radially fixed two intersections of annulus on the lower cover, intersection forms second Interconnecting piece, the first connecting portion, which is located at the center of upper end cover, to be arranged, and second connecting portion, which is located at the center of lower cover, to be arranged.
Preferably, the aluminium foil is connect by bonding or heat pressing process with skeleton.
Preferably, the material of the support rib is SUS301 stainless steel.
Preferably, the upper and lower end caps and the support rib pass through lock connection.
The utility model has the advantages that extra-high voltage grading shield of the present invention is light-weight, using the structure convenient transportation of lantern-shaped, it is not required to On-site consolidation is wanted, only need to open and can use at the scene.
Detailed description of the invention
Fig. 1 is top view described in an embodiment of the present invention;
Fig. 2 is front view described in an embodiment of the present invention;
Fig. 3 is center-pole structural schematic diagram described in an embodiment of the present invention;
Fig. 4 is the structural schematic diagram of the extra-high voltage grading shield in transportational process described in an embodiment of the present invention;
Fig. 5 is the structural schematic diagram of center-pole described in another embodiment of the present invention.
It include: skeleton 1, upper end cover 11, first connecting rod 111, first connecting portion 112, lower cover 12, second connecting rod in figure 121, second connecting portion 122, support rib 13, center-pole 2, hook 21, upper boom 22, lower beam 23, plug pin portion 24, connecting hole 25, aluminium Foil 3.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to of the invention Specific implementation method is described in further detail.
Embodiment 1
As illustrated in fig. 1 and 2, extra-high voltage grading shield of the present invention, including skeleton 1, center-pole 2 and aluminium foil 3, it is described Skeleton 1 includes circular ring shape upper end cover 11, the circular ring shape lower cover 12 for being placed in bottom corresponding with the circular upper lid 11, the circle Annular upper end lid 11 and round lower cover 12 are fixed by several support ribs 13 for being placed in side, along annulus on the upper end cover 11 The first connecting rods 111 for being arranged radially two intersections, intersection forms first connecting portion 112, edge on the lower cover 12 The second connecting rod 121 of radially fixed two intersections of annulus, intersection form second connecting portion 122, first connection Portion 112, which is located at the center of upper end cover 11, to be arranged, and second connecting portion 122, which is located at the center of lower cover 12, to be arranged, the aluminium foil 3 It is placed in the surface of the skeleton 1, is connect by bonding or heat pressing process with skeleton, skeletal support aluminium foil, composition extra-high voltage is equal Pressure cover, aluminium foil play the role of pressure.Upper and lower end caps and the support rib pass through lock connection.
The material of upper end cover 11, lower cover 12 and support rib 13 is constituted using the non-magnetic metal material of elasticity, support rib 13 materials are preferably SUS301 stainless steel.The material of upper and lower end caps can be stainless steel, light-weight.
As shown in figure 3, the both ends of the center-pole 2 are respectively arranged with hook 21, the hook 21 at both ends is respectively with first Interconnecting piece 111 and the cooperation buckle of second connecting portion 121, when in use, the center-pole 2 is hooked in 111 He of first connecting portion Second connecting portion 121 removes the center-pole 2 when needing to transport, and support rib 13 stretches, and grading shield is reduced into cylinder.
When in use, the cross section that annulus or more end cap is connected with center-pole 2, props up aluminium foil 3 using the elasticity of skeleton, Constitute lantern-shaped structure;As shown in figure 4, removing connecting rod when transport, under the elasticity of skeleton, support rib is stretched, and extra-high voltage is pressed Cover is reduced into cylinder, convenient transportation.
Embodiment 2
The other parts of embodiment 1 are constant, the structure of center-pole 2 be it is scalable, flexible length can be according to the branch of skeleton It supports situation and is arranged, both ends are fixedly mounted with the first connecting portion 111 and second connecting portion 112 respectively, when pressing, institute Stating center-pole is contraction state, and when needing to transport, the center-pole 2 is elongation state, and the support rib stretches, and extra-high voltage is equal Pressure cover is reduced into cylinder.As shown in figure 5, providing a kind of specific structure, center-pole 2 includes upper boom 22, lower beam 23 and inserts Two through-hole (not shown)s are arranged in pin portion 24 on the lower beam, respectively upper through-hole and lower through-hole, are arranged on upper boom 22 Through-hole, it is contraction state that when pressing, the through-hole on the lower through-hole and upper boom 22 is fixed by plug pin portion 24;When needing to transport When defeated, the through-hole of upper through-hole and upper boom is fixed by the plug pin portion, to be elongation state, is distinguished on the upper boom and lower beam The fixed installation of the interconnecting piece of connecting hole 25 and the upper and lower end caps is set, can be fixed by modes such as welding, screws.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair The equivalent structure that bright specification and accompanying drawing content are done, is applied directly or indirectly in other relevant technical fields, and includes In scope of patent protection of the invention.

Claims (7)

1. a kind of extra-high voltage grading shield, which is characterized in that the grading shield is in lantern-shaped structure, including skeleton (1), center-pole (2) and aluminium foil (3), the skeleton (1) includes circular ring shape upper end cover (11), corresponding with circular upper lid (11) is placed in bottom Circular ring shape lower cover (12), the circular ring shape upper end cover (11) and the round lower cover (12) in portion are by being placed in the several of side Support bone (13) is fixed, and center-pole (2) both ends and the upper and lower end caps (11,12) secure fit, the aluminium foil (3) are placed in The surface of the skeleton (1), the upper end cover (11) and lower cover (12) are made of the non-magnetic metal material of elasticity.
2. extra-high voltage grading shield according to claim 1, which is characterized in that the center-pole (2) is scalable, both ends point It is not fixedly mounted with the first connecting portion (111) and second connecting portion (112), when in use, the center-pole (2) is to shrink State, when needing to transport, the center-pole (2) is elongation state, and the support rib (13) is stretched, and grading shield is reduced into cylinder Shape.
3. extra-high voltage grading shield according to claim 1, which is characterized in that the both ends of the center-pole (2) are respectively set Having hook (21), the hook (21) at both ends is buckled with first connecting portion (111) and second connecting portion (121) cooperation respectively, when It is gone in the first connecting portion (111) and second connecting portion (121) when needing to transport in use, the center-pole (2) hooks Except the center-pole (2), support rib (13) is stretched, and grading shield is reduced into cylinder.
4. extra-high voltage grading shield according to claim 1-3, which is characterized in that along circle on the upper end cover (11) The first connecting rod (111) for being arranged radially two intersections of ring, intersection form first connecting portion (112), the lower cover (12) along the second connecting rod (121) of radially fixed two intersections of annulus on, intersection forms second connecting portion (122), The first connecting portion (112), which is located at the center of upper end cover (11), to be arranged, and second connecting portion (122) is located at lower cover (12) It is arranged at center.
5. extra-high voltage grading shield according to claim 1-3, which is characterized in that the aluminium foil (3) passes through bonding Or heat pressing process is connect with skeleton.
6. extra-high voltage grading shield according to claim 1-3, which is characterized in that the material of the support rib (13) For SUS301 stainless steel.
7. extra-high voltage grading shield according to claim 1-3, which is characterized in that the upper and lower end caps (11,12) Pass through lock connection with the support rib (13).
CN201910280407.7A 2019-04-09 2019-04-09 Extra-high voltage equalizing cover Active CN109887689B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201910280407.7A CN109887689B (en) 2019-04-09 2019-04-09 Extra-high voltage equalizing cover

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CN109887689A true CN109887689A (en) 2019-06-14
CN109887689B CN109887689B (en) 2024-03-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113677123A (en) * 2021-08-10 2021-11-19 国网浙江省电力有限公司营销服务中心 Multi-joint telescopic extra-high voltage equalizing cover

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102375078A (en) * 2010-08-26 2012-03-14 苏州华电电气股份有限公司 Extra-high-voltage and extra-large-diameter voltage equalizing cover
CN205900210U (en) * 2016-08-04 2017-01-18 苏州华电电气股份有限公司 Gasbag formula metal scale ultra high voltage voltage -sharing cover
CN206059050U (en) * 2016-08-31 2017-03-29 扬州洪顺电器有限公司 A kind of pin-connected panel grading ring
CN209561102U (en) * 2019-04-09 2019-10-29 国网江苏省电力有限公司电力科学研究院 A kind of extra-high voltage grading shield

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102375078A (en) * 2010-08-26 2012-03-14 苏州华电电气股份有限公司 Extra-high-voltage and extra-large-diameter voltage equalizing cover
CN205900210U (en) * 2016-08-04 2017-01-18 苏州华电电气股份有限公司 Gasbag formula metal scale ultra high voltage voltage -sharing cover
CN206059050U (en) * 2016-08-31 2017-03-29 扬州洪顺电器有限公司 A kind of pin-connected panel grading ring
CN209561102U (en) * 2019-04-09 2019-10-29 国网江苏省电力有限公司电力科学研究院 A kind of extra-high voltage grading shield

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113677123A (en) * 2021-08-10 2021-11-19 国网浙江省电力有限公司营销服务中心 Multi-joint telescopic extra-high voltage equalizing cover

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