CN203521026U - Fully insulated and shielded outer-cylindrical special-pipe-shaped bus - Google Patents
Fully insulated and shielded outer-cylindrical special-pipe-shaped bus Download PDFInfo
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- CN203521026U CN203521026U CN201320664300.0U CN201320664300U CN203521026U CN 203521026 U CN203521026 U CN 203521026U CN 201320664300 U CN201320664300 U CN 201320664300U CN 203521026 U CN203521026 U CN 203521026U
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- tubular bus
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Abstract
A fully insulated and shielded outer-cylindrical special-pipe-shaped bus comprises a pipe-shaped bus body. The cross section of the external pipe wall of the pipe-shaped bus body has a polygonal special-shaped structure. Furthermore an insulating layer, a semi-conductive shielding layer, a shielding layer and an insulated outer protecting layer are successively coated on the external pipe wall from inside to outside. According to the fully insulated and shielded outer-cylindrical special-pipe-shaped bus, not only is bus rigidity improved for controlling a draping degree within standard requirement and ensuring basically no deformation and good contact at connection part of the bus; but also the following advantages are realized: current-carrying capacity increase for times, lower skin effect, lower power loss, better heat radiation condition, lower temperature increase and higher reliability.
Description
Technical field:
The utility model relates to a kind of all insulation shielding cylindrical special-shaped tubular tubular bus.
Background technology:
It is ganoid pipe mostly that all insulation of using at present shields tubular bus bulk, and according to the size of the electric current and voltage of carrying, decide cross section and diameter and the wall thickness of pipe, increase along with electric current and voltage grade, the diameter of tubular bus body also increases thereupon, not only increase manufacturing cost and project cost, and cannot meet the specification requirement of electric power system, so existing all insulation shielding tubular bus is limited in 35KV electric pressure substantially with interior use.In addition, existing all insulation shielding tubular bus can sagging generation degree of dangling when large span, and degree of dangling surpasses setting and causes bus bulk junction to produce distortion and loose contact and cause overheated overvoltage, causes the accident.
Summary of the invention:
The technical problem that the utility model solves: design a kind of all insulation shielding cylindrical special-shaped tubular tubular bus, not only improved the rigidity of bus, its degree of dangling is controlled in code requirement, guarantee that bus junction is substantially indeformable and contact well; And ampacity had increase at double, kelvin effect is lower, and power loss is less, and radiating condition is better, and temperature rise is lower, and reliability is higher.
Technical solution of the present utility model: a kind of all insulation shielding cylindrical special-shaped tubular tubular bus, comprise tubular bus body, the outer tube wall of described tubular bus body is polygon polymorphic structure on cross section, and on outer tube wall, be coated with successively from inside to outside insulating barrier, semiconductive shielding layer, screen and insulation outer jacket.
On the outer tube wall of described tubular bus body, there is vertically evenly distributed elongated convex tendon, and described convex tendon is symmetric arrays on cross section.
The cross section of described convex tendon is fan-shaped or polygon.
The quantity of described convex tendon is at least 2.
The quantity of described convex tendon is preferably 6.
The advantage that the utility model compared with prior art has and effect:
1, under this body diameter of tubular bus, internal diameter and wall thickness specifications the same terms, when electric pressure is identical, because shielding tubular bus bulk than existing all insulation, the current-carrying face of the utility model tubular bus body electric current increases 3 times, therefore, the utility model is compared ampacity with existing all insulation shielding tubular bus and has been improved 3 times, and kelvin effect is lower, power loss is less.In like manner, under electric pressure and ampacity the same terms, the utility model is compared caliber with existing all insulation shielding tubular bus and has been dwindled 3 times, can meet higher electric pressure and larger ampacity needs, has supported the specification requirement of electric power system.
2, owing to thering is vertically evenly distributed elongated convex tendon on the utility model body outer tube wall, there are many and support beam action, improved the rigidity of tubular bus body, its degree of dangling when large span is controlled in code requirement, guarantee that tubular bus body junction is substantially indeformable and contact well, reliability is higher.
Accompanying drawing explanation:
Fig. 1 is contour structures schematic diagram of the present utility model,
Fig. 2 is cross section structure schematic diagram of the present utility model.
Embodiment:
1,2 a kind of embodiment of the present utility model is described by reference to the accompanying drawings.
A kind of all insulation shielding cylindrical special-shaped tubular tubular bus, comprise tubular bus body 1, on the outer tube wall of described tubular bus body 1, have vertically 6 evenly distributed elongated convex tendons 2, described convex tendon 2 is symmetric arrays on cross section, and the cross section of described convex tendon 2 is fan-shaped; On the outer tube wall of described tubular bus body 1, extrude successively from inside to outside insulating barrier 3, be coated with semiconductive shielding layer 4, screen 5 and insulation outer jacket 6.
Under tubular bus external diameter, internal diameter and wall thickness specifications the same terms, when electric current and voltage grade is identical, because the current-carrying face of the utility model electric current increases 3 times than existing tubular bus, therefore, the utility model is compared ampacity with existing all insulation shielding tubular bus and has been improved 3 times.In like manner, under electric current and voltage grade and ampacity the same terms, the utility model is compared caliber with existing all insulation shielding tubular bus and has been dwindled 3 times, can meet higher electric current and voltage grade and larger ampacity.In addition, owing to thering is vertically evenly distributed elongated convex tendon on the utility model body outer tube wall, on cross section, formed polygonized structure, not only improved the rigidity of tubular bus body, its degree of dangling when large span is controlled in code requirement, guarantee that tubular bus body junction is substantially indeformable and contact well, reliability is higher, has reduced rate of failure.
Above-described embodiment, is preferred embodiment of the present utility model, is not used for limiting the utility model practical range, therefore all equivalent variations of being done with content described in the utility model claim all should be included in the utility model claim scope.
Claims (5)
1. an all insulation shields cylindrical special-shaped tubular tubular bus, comprise tubular bus body (1), it is characterized in that: the outer tube wall of described tubular bus body (1) is polygon polymorphic structure on cross section, and on outer tube wall, be coated with successively from inside to outside insulating barrier (3), semiconductive shielding layer (4), screen (5) and insulation outer jacket (6).
2. all insulation according to claim 1 shields cylindrical special-shaped tubular tubular bus, it is characterized in that: on the outer tube wall of described tubular bus body (1), there is vertically evenly distributed elongated convex tendon (2), and described convex tendon (2) is symmetric arrays on cross section.
3. all insulation shielding cylindrical special-shaped tubular tubular bus according to claim 2, is characterized in that: the cross section of described convex tendon (2) is fan-shaped or polygon.
4. all insulation shielding cylindrical special-shaped tubular tubular bus according to claim 3, is characterized in that: the quantity of described convex tendon (2) is at least 2.
5. all insulation shielding cylindrical special-shaped tubular tubular bus according to claim 4, is characterized in that: the quantity of described convex tendon (2) is preferably 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664300.0U CN203521026U (en) | 2013-10-25 | 2013-10-25 | Fully insulated and shielded outer-cylindrical special-pipe-shaped bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664300.0U CN203521026U (en) | 2013-10-25 | 2013-10-25 | Fully insulated and shielded outer-cylindrical special-pipe-shaped bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521026U true CN203521026U (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320664300.0U Expired - Fee Related CN203521026U (en) | 2013-10-25 | 2013-10-25 | Fully insulated and shielded outer-cylindrical special-pipe-shaped bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051070A (en) * | 2014-07-14 | 2014-09-17 | 解文 | Large-current conveying bus |
-
2013
- 2013-10-25 CN CN201320664300.0U patent/CN203521026U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051070A (en) * | 2014-07-14 | 2014-09-17 | 解文 | Large-current conveying bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20171025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |