CN102148072A - Flexible heavy-current tubular busbar and processing method therefor - Google Patents
Flexible heavy-current tubular busbar and processing method therefor Download PDFInfo
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- CN102148072A CN102148072A CN2010102323714A CN201010232371A CN102148072A CN 102148072 A CN102148072 A CN 102148072A CN 2010102323714 A CN2010102323714 A CN 2010102323714A CN 201010232371 A CN201010232371 A CN 201010232371A CN 102148072 A CN102148072 A CN 102148072A
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Abstract
The invention provides a flexible heavy-current tubular busbar and a processing method therefor. The flexible heavy-current tubular busbar comprises a busbar body and end connecting hardware fittings arranged at both ends of the busbar body and is characterized in that the busbar body comprises a stainless steel corrugated tube, an insulating layer is arranged outside the stainless steel corrugated tube, and the stainless steel corrugated tube is internally provided with conductive tubes which are arranged in bundle; each end connecting hardware fitting comprises at least two conductive end plates; at leas one surface of each conductive end plate is provided with a semicircle groove; the semicircle grooves of the adjacent conductive end plates form a round hole; the end parts of the conductive tubes are arranged in the round holes; and the conductive end plates and the conductive tubes arranged between the conductive end plates are connected together by bolts. The flexible heavy-current tubular busbar has the advantage of low cost.
Description
Technical field
The present invention relates to big electric current tube type bus of a kind of flexibility and processing method thereof, belong to the high voltage technical field.
Background technology
In the AC distribution device below 35KV, more and more adopt the pipe typed insulation bus to come transferring electric power.Tube type bus cross-sectional area of conductor and diameter decide according to the size of electric current.Because kelvin effect, the contact tube wall thickness can not infinitely strengthen, therefore electric current is big more under the certain situation of voltage, and the pipe typed insulation bus diameter is also big more, and the also corresponding increase of insulating material is many more, the annex that supports is also done bigger and bigger, therefore, even under the constant situation of voltage, electric current is big more, the insulation costs of pipe typed insulation bus and annex cost all increase very big, and this obviously is irrational.
Because existing insulating tube type busbar all is to adopt single contact tube as conductor mostly, managing thick wall thickness can't on-the-spot bending machining, therefore can't realize large-scale standardized production, and processing cost remains high naturally.
Find through retrieval prior art, China Patent No. ZL200710027035.4, authorize the patent of invention of publication number CN100511493C, put down in writing a kind of " insulation thin-wall copper pipe bus ", this invention has been narrated a kind of thin-wall copper pipe of wall thickness below 4 millimeters of using as conductor, the copper pipe outer wall is done insulating barrier again, and liner adopts aluminum pipe or stainless steel tube to strengthen intensity to prevent that copper pipe is owing to the thin distortion of wall causes insulation damages.This technology can reduce copper material by the wall thickness that reduces conductor material, but the annex that simultaneously causes being attached to insulating material tube wall outside because increased the conductor caliber and significantly increase support is simultaneously also done bigger and bigger, the cost of annex also will increase, so cost savings are little on the whole on all insulation bus of the above electric pressure of 10kv if this technology is used for.
Find through retrieval prior art, Chinese patent application ZL200710029646.2, the patent of authorizing publication number CN101149996A has been put down in writing a kind of " multiple fission copper or aluminium busbar ", this patent adopts many divided conductors, has the bus structure of insulating barrier between conductor and the conductor.The purpose that this technology is in parallel and increases electric current to reach by many thin-walled cast isolated buses, this and the many cable essential distinctions that there is no in parallel, because increased the also corresponding increase of its cost of insulating material of every conductor tube, therefore cost is also saved not quite on the whole simultaneously.
Summary of the invention
At the prior art above shortcomings, technical problem to be solved by this invention provides a kind of flexible cheaply big electric current tube type bus and processing method thereof.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
The big electric current tube type bus of a kind of flexibility, the end connection gold utensil that comprises bus bulk and be located at the bus bulk two ends is characterized in that described bus bulk comprises corrugated stainless steel tubing, corrugated stainless steel tubing is provided with insulating barrier outward, is provided with the contact tube that bunchy is arranged in the corrugated stainless steel tubing; Described end connects gold utensil and comprises at least two conducting end plates, at least the one side of conducting end plates is provided with semi-circular recesses, the semi-circular recesses of adjacent conductive end plate is formed circular port, the end of contact tube is located in the described circular port, and conducting end plates and the contact tube of being located between the conducting end plates pass through bolt together.
Described contact tube is copper pipe or copper alloy tube such as copper tube, and its wall thickness is between 1～2 millimeter, and diameter is between 10～16 millimeters.
The cross section circumcircle diameter of the contact tube that described bunchy is arranged is 40mm to 170mm.
The cross section of described corrugated stainless steel tubing is a tubular, and internal diameter is 45 millimeters to 180 millimeters.
Described insulating barrier is polyethylene, crosslinked polyethylene, fluoroplastics or silicon rubber.
The external diameter of described bus bulk is 50 millimeters to 175 millimeters.
The present invention also provides the processing method of the big electric current tube type bus of above-mentioned flexibility, it is characterized in that, concrete steps are: contact tube and the corrugated stainless steel tubing of selecting the caliber coupling, the contact tube bunchy is filled in the corrugated stainless steel tubing, 300～500 millimeters of corrugated stainless steel tubings are exposed at assurance contact tube two ends respectively, with wrapping machine insulating material is surrounded and to form insulating barrier on the corrugated stainless steel tubing, with gained bus bulk packing rolling, during use, the end of contact tube is placed circular port between the conducting end plates, and step up to make every contact tube and last with bolt, following conducting end plates reliably contacts.
The present invention is owing to utilized the many little copper pipe parallel connections of thin-walled as conductor, the outside puts special flexible insulated hose again, thereby ampacity is big, saving material than copper rectangular bus bar under identical big or small electric current (more than 2500 Ampere currents) reaches more than 25%, whole simultaneously section bus softness, can be crooked as cable, thereby can baling, thereby can realize that standardized production cuts down finished cost significantly.And can install with the construction method that cable is installed, thereby realize field erected standardization, and then reduce construction cost.
Description of drawings
Fig. 1 is the bus bulk front view;
Fig. 2 is the bus bulk vertical view;
Fig. 3 is the bus bulk end view;
Fig. 4 is flexible big electric current tube type bus front view;
Fig. 5 is flexible big electric current tube type bus vertical view;
Fig. 6 is flexible big electric current cast bus bar side view;
Embodiment
Specify the present invention below in conjunction with embodiment.
A kind of electric current is the flexible big electric current tube type bus of 2500A, the end connection gold utensil that comprises bus bulk and be located at the bus bulk two ends.
As Figure 1-3, be the bus bulk structural representation, described bus bulk comprises corrugated stainless steel tubing 2, is provided with insulating barrier 1 outside the corrugated stainless steel tubing 2, is provided with the contact tube 3 that bunchy is arranged in the corrugated stainless steel tubing 2.
Shown in Fig. 4-6, be the big electric current cast of flexibility bus structure schematic diagram, described end connects gold utensil and comprises 4 conducting end plates 4, at least the one side of conducting end plates 4 is provided with semi-circular recesses, the semi-circular recesses of adjacent conductive end plate 4 is formed circular port, the end of contact tube 3 is located in the described circular port, and conducting end plates 4 and the contact tube of being located between the conducting end plates 43 are fixed together by bolt 5.
Wherein, contact tube 3 is a copper pipe, totally 19, and 8 millimeters of 12 millimeters internal diameters of external diameter.It is 55 millimeters that bunchy is arranged cross section, back circumcircle diameter.The cross section of corrugated stainless steel tubing 2 is a tubular, 60 millimeters of internal diameters, thick 0.5 millimeter.Insulating barrier 1 is a polytetrafluoroethylene.The external diameter of bus bulk is 115 millimeters.
Described conducting end plates 4 is processed by copper plate.
The processing method of the big electric current tube type bus of above-mentioned flexibility is as follows:
1, select some contact tubes 3 standby:
Described contact tube 3 wall thickness are between 1～4 millimeter, and diameter is between 10～16 millimeters, and its quantity and wall thickness are selected according to the rated current size, and every length determines according to order length.Require contact tube 3 that slight crack can not be arranged, and even tube wall.
2, contact tube 3 bunchys are filled in the corrugated stainless steel tubing 2 of corresponding caliber:
Described corrugated stainless steel tubing 2 rolls welding for corrosion resistant plate and has the metal hose of transverse wave, its wall thickness is between 0.1～1 millimeter, 5～10 millimeters of the contact tube 3 circumcircle diameters that corrugated stainless steel tubing 2 internal diameters are filled in greater than bunchy, it is shorter in length than contact tube 3, guarantees that contact tube 3 two ends grow 400 millimeters respectively.
3, insulation processing:
With wrapping machine insulating material is surrounded on the corrugated stainless steel tubing 2.The insulation outside can install one deck overcoat additional: as install heat-shrinkable T bush or cover last layer corrugated stainless steel tubing 2 additional.
4, packing:
With the processed finished product rolling of can packing, be convenient to transportation.
5, connect the end and connect gold utensil:
Described end connect gold utensil be two of rectangle copper coins or more polylith be a cover (two or polylith copper coin are more adopted in little copper pipe quantity decision according to tube type bus), the copper coin one or both sides vertically are provided with a plurality of semi-circular recesses, the centre is provided with a plurality of set bolts.
After the flexible big electric current tube type bus that production is good is transported to on-the-spot installation in position, the every contact tube 3 of big electric current cast bus-bars conductor part must be connected gold utensil with the end and be connected.Concrete grammar is: the copper coin groove is relative up and down, and the every contact tube 3 of tube type bus conductor is placed groove respectively, steps up to make every contact tube 3 reliably to contact with copper coin up and down with bolt 5, thereby realizes the parallel connection of every contact tube of big electric current cast bus-bars conductor 3.If contact tube 3 quantity are more, then adopt the polylith copper coin, the copper coin in the middle of then placing needs the two sides that a plurality of semi-circular recesses vertically are set, and with bolt 5 clampings every little copper pipe is reliably contacted with copper coin up and down again.
Present embodiment can guarantee that ampacity reaches 2500 amperes, and temperature rise is lower than 60K, and sectional area is equivalent to 60 millimeters of external diameters, the copper tube ampacity that internal diameter is 40 millimeters, save copper material 25%, and because the bus-bars conductor external diameter is 60 millimeters, so insulating material does not increase.
Be similar to embodiment 1, difference is: described contact tube 2 is copper tube, the copper content of this copper tube＞99.4%, and described insulating barrier 1 is a polyethylene.
Claims (7)
1. big electric current tube type bus of flexibility, the end connection gold utensil that comprises bus bulk and be located at the bus bulk two ends, it is characterized in that, described bus bulk comprises corrugated stainless steel tubing (2), corrugated stainless steel tubing (2) is outer to be provided with insulating barrier (1), is provided with the contact tube (3) that bunchy is arranged in the corrugated stainless steel tubing (2); Described end connects gold utensil and comprises at least two conducting end plates (4), at least the one side of conducting end plates (4) is provided with semi-circular recesses, the semi-circular recesses of adjacent conductive end plate (4) is formed circular port, the end of contact tube (3) is located in the described circular port, and conducting end plates (4) and the contact tube of being located between the conducting end plates (4) (3) are fixed together by bolt (5).
2. the big electric current tube type bus of flexibility as claimed in claim 1 is characterized in that, described contact tube (3) is copper pipe or copper alloy tube such as copper tube, and its wall thickness is between 1～2 millimeter, and diameter is between 10～16 millimeters.
3. the big electric current tube type bus of flexibility as claimed in claim 1 is characterized in that, the cross section circumcircle diameter of the contact tube (3) that described bunchy is arranged is 40mm to 170mm.
4. the big electric current tube type bus of flexibility as claimed in claim 1 is characterized in that the cross section of described corrugated stainless steel tubing (2) is a tubular, and internal diameter is 45 millimeters to 180 millimeters.
5. the big electric current tube type bus of flexibility as claimed in claim 1 is characterized in that described insulating barrier (1) is polyethylene, crosslinked polyethylene, fluoroplastics or silicon rubber.
6. the big electric current tube type bus of flexibility as claimed in claim 1 is characterized in that, the external diameter of described bus bulk is 50 millimeters to 175 millimeters.
7. the processing method of the big electric current tube type bus of the described flexibility of claim 1, it is characterized in that, concrete steps are: contact tube (3) and the corrugated stainless steel tubing (2) of selecting the caliber coupling, contact tube (3) bunchy is filled in the corrugated stainless steel tubing (2), (2) 300～500 millimeters of corrugated stainless steel tubings are exposed at assurance contact tube (3) two ends respectively, with wrapping machine insulating material is surrounded corrugated stainless steel tubing (2) and go up formation insulating barrier (1), with gained bus bulk packing rolling, during use, the end of contact tube (3) is placed circular port between the conducting end plates (4), and step up to make every contact tube (3) with last with bolt (5), the reliable contact of following conducting end plates (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102323714A CN102148072A (en) | 2010-07-21 | 2010-07-21 | Flexible heavy-current tubular busbar and processing method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102323714A CN102148072A (en) | 2010-07-21 | 2010-07-21 | Flexible heavy-current tubular busbar and processing method therefor |
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| CN102148072A true CN102148072A (en) | 2011-08-10 |
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| CN2010102323714A Pending CN102148072A (en) | 2010-07-21 | 2010-07-21 | Flexible heavy-current tubular busbar and processing method therefor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051070A (en) * | 2014-07-14 | 2014-09-17 | 解文 | Large-current conveying bus |
| CN105448389A (en) * | 2015-12-31 | 2016-03-30 | 中国人民解放军国防科学技术大学 | Low-impedance high-voltage coaxial cable |
| WO2018082486A1 (en) * | 2016-11-04 | 2018-05-11 | 吉林省中赢高科技有限公司 | Aluminum terminal and copper-aluminum transition connector |
| CN109638480A (en) * | 2019-01-14 | 2019-04-16 | 广东日昭电工有限公司 | Copper end and preparation method thereof |
| CN109918766A (en) * | 2019-03-04 | 2019-06-21 | 国网湖北省电力有限公司电力科学研究院 | A kind of insulating tube type busbar construction design method |
| CN112837859A (en) * | 2020-12-31 | 2021-05-25 | 南京巍川科技有限公司 | Phase-change temperature-control all-insulation optical unit composite wire |
-
2010
- 2010-07-21 CN CN2010102323714A patent/CN102148072A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051070A (en) * | 2014-07-14 | 2014-09-17 | 解文 | Large-current conveying bus |
| CN105448389A (en) * | 2015-12-31 | 2016-03-30 | 中国人民解放军国防科学技术大学 | Low-impedance high-voltage coaxial cable |
| CN105448389B (en) * | 2015-12-31 | 2017-02-01 | 中国人民解放军国防科学技术大学 | Low-impedance high-voltage coaxial cable |
| WO2018082486A1 (en) * | 2016-11-04 | 2018-05-11 | 吉林省中赢高科技有限公司 | Aluminum terminal and copper-aluminum transition connector |
| US10707591B2 (en) | 2016-11-04 | 2020-07-07 | Jilin Zhong Ying High Technology Co., Ltd | Aluminum terminal and copper-aluminum transition connector |
| CN109638480A (en) * | 2019-01-14 | 2019-04-16 | 广东日昭电工有限公司 | Copper end and preparation method thereof |
| CN109918766A (en) * | 2019-03-04 | 2019-06-21 | 国网湖北省电力有限公司电力科学研究院 | A kind of insulating tube type busbar construction design method |
| CN112837859A (en) * | 2020-12-31 | 2021-05-25 | 南京巍川科技有限公司 | Phase-change temperature-control all-insulation optical unit composite wire |
| CN112837859B (en) * | 2020-12-31 | 2022-06-28 | 惠州市德泓科技有限公司 | Phase-change temperature-control all-insulation optical unit composite wire |
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Application publication date: 20110810 |