CN203850454U - Tubular bus middle connection device - Google Patents
Tubular bus middle connection device Download PDFInfo
- Publication number
- CN203850454U CN203850454U CN201420259002.8U CN201420259002U CN203850454U CN 203850454 U CN203850454 U CN 203850454U CN 201420259002 U CN201420259002 U CN 201420259002U CN 203850454 U CN203850454 U CN 203850454U
- Authority
- CN
- China
- Prior art keywords
- outer tube
- hole
- pipe
- ferrule
- latch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to the field of power system power generation, transmission and electric transformer and distribution devices, and particularly relates to a tubular bus middle connection device. The butt-joint portion of tubular buses of which end surfaces correspond to each other is provided with an outer casing pipe. End portion of the two tubular buses on the butt-joint side are located in the outer casing pipe. The inner diameter of the outer casing pipe is the same as the outer diameters of the tubular buss. The pipe wall of the outer casing pipe is provided with an opening running through the pipe wall. The opening is arranged along the pipe body of the outer casing pipe and extended to two ends of the outer casing pipe. The pipe body of the outer casing pipe is sleeved with a metal hoop. The inner diameter of the metal hoop is the same as the outer diameter of the outer casing pipe. The device has advantages of simple process, firm and reliable connection, good current-carrying performance, no eddy current heating, easy joint portion fabrication and insulation.
Description
Technical field
The utility model relates to electric power system generating, transmission of electricity, becomes distribution devices field, particularly a kind of tubular bus intermediate junction device.
Background technology
Along with the increasing of transforming plant main transformer capacity, transformer 10kV and 35kV side bus rated current have exceeded 3000A, and conventional rectangular bus bar has been not suitable with the loop that operating current is large in technology and structure.When separate unit main transformer capacity reaches 180MVA when above, the proportion shared due to rated current, short circuit current and the separate unit main transformer capacity of step down side increases, and main transformer low-pressure line-outgoing side not only has the electric power problem of bus bridge own, heating problem, also has the reinforcing bar heating problem that inductive loop causes in alternating intense magnetic field near the concrete column of bus bridge post insulator, steel framework and bus bridge, basis.The advantages such as insulation tubular bus is as the substitute of rectangular bus bar, large with its ampacity, mechanical strength is high, thermal diffusivity is good are gradually by more and more power plant, substation adopt.The length of single insulation tubular bus is 6-8m, need to connect into longer insulation tubular bus by intermediate junction device, to meet instructions for use.The connected mode of existing tubular bus has multiple, and such as the mode that uses bolt or metallic sheath welding is carried out the connection of two sections of tubular bus, its equal Shortcomings part: bolt connection causes bad the doing of joint area to insulate, and bolt has wedge angle, easily generation electric discharge; Although metallic sheath welding manner is easily processed the insulation of appearance, the welding slag in the line of rabbet joint is difficult to clean out, and easily causes this position electric discharge and damage insulating barrier, and welding procedure itself is also cumbersome, need to be at the connection situ configuration welding equipment of tubular bus.
Utility model content
The purpose of this utility model is to provide a kind of tubular bus intermediate junction device, is convenient to the connection of pipe bus and connects reliable for effect.
For realizing above object, the technical solution adopted in the utility model is: a kind of tubular bus intermediate junction device, the joint of the pipe bus that end face corresponds to each other arranges outer tube, and the end that two pipe buses dock a side is positioned at outer tube, the internal diameter of outer tube and pipe bus external diameter match, the opening that runs through tube wall is set on the tube wall of described outer tube, and opening arranges and extends to the two ends of outer tube along the pipe shaft of outer tube; On the pipe shaft of outer tube, be arranged with ferrule, the internal diameter of ferrule and the external diameter of outer tube match.
Compared with prior art, there is following technique effect in the utility model: by ringent outer tube, pipe bus is implemented to preliminary fixing, then by ferrule, outer tube, pipe bus are held tightly, package unit can be prefabricated in factory, and technique is simple; In addition, this device firm and reliable connection, current-carrying performance is good, and without eddy-current heating, joint area is easily made insulation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is perspective view of the present utility model;
Fig. 3 is the structural representation in the utility model embodiment mono-latch and hole;
Fig. 4 is the structural representation in the utility model embodiment bis-latches and hole.
Embodiment
Below in conjunction with Fig. 1 to Fig. 4, the utility model is described in further detail.
Consult Fig. 1, a kind of tubular bus intermediate junction device, the pipe bus 10a that end face corresponds to each other, the joint of 10b arrange outer tube 20, and the end that two pipe bus 10a, 10b dock a side is positioned at outer tube 20, the internal diameter of outer tube 20 and pipe bus 10a, 10b external diameter match, the opening 22 that runs through tube wall is set on the tube wall of described outer tube 20, and opening 22 arranges and extends to the two ends of outer tube 20 along the pipe shaft of outer tube 20; On the pipe shaft of outer tube 20, be arranged with ferrule 30, the external diameter of the internal diameter of ferrule 30 and outer tube 20 matches.On outer tube 20, arrange after opening 22, outer tube 20 slight opening under the tension force effect of himself, be convenient to the insertion of pipe bus 10a, 10b, after treating that pipe bus 10a, 10b insert in outer tube 20, use special instrument outer tube 20 to be tightened up and be arranged with ferrule 30 outside outer tube 20, ferrule 30 limits outer tube 20 and opens, outer tube 20 can complete two pipe bus 10a to be connected, the docking of 10b effectively, and this mode has been avoided all deficiencies that in prior art, bolt connects or welds.
Further, the reliability connecting in order to increase pipe bus 10a, 10b, on the tube wall of described outer tube 20, offering the second through hole 21, the second through holes 21 has multiple and is arranged symmetrically with about opening 22; In pipe bus 10a, 10b and ferrule 30, the position of corresponding the second through hole 21 arranges respectively first and third through hole 11,31, and the situation of first, second and third through hole 11,21,31 can be found out in detail from Fig. 2.In first, second and third through hole 11,21,31, be provided with the circumferential rotation that latch 40 limits ferrule 30, outer tube 20 and pipe bus 10a, 10b.By coordinating of latch 40 and each through hole, make pipe bus 10a, 10b fixing more reliable in outer tube 20, difficult drop-off.
As preferred version of the present utility model, first and third described through hole 11,31 is arranged with core, the axle core of the second through hole 21 is positioned at the axle core of the first through hole 11 away from opening 22 1 sides, for the ease of understanding, in Fig. 3, respectively the shaft core line of opening 22, the second through hole 21, the first through hole 11 is illustrated with dotted line L1, L2, L3 respectively, the axle core of the second through hole 21 is positioned at the angle that angle that the axle core of the first through hole 11 is also L1 and L2 away from opening 22 1 sides is greater than L1 and L3.Because first and second through hole 11,21 is in eccentric state, in the time of fit on latch 40, the second through hole 21 is to opening 22 1 side shiftings under the effect of latch 40, and outer tube 20 tightens up fixing of pipe bus 10a, 10b more reliable.In addition, because first, second and third through hole 11,21,31 is eccentric orfice, in the time that latch 40 inserts in each through hole, the shaft of latch 40 is subject to the extruding of first, second and third through hole 11,21,31 hole walls, wherein the second through hole 21 imposes on the extruding force sensing of latch 40 away from a side of opening, first and third through hole 11,31 imposes on the extruding force of latch 40 and points to opening one side, under the effect of these three power, having limited latch 40 moves along the shaft core direction of each through hole, also fixed conversely latch 40, prevented that latch 40 from dropping.
The execution mode of latch 40 is various, provides two kinds here comparatively preferred embodiment:
Fig. 3 is the structural representation of embodiment mono-, and described latch 40 is curved arc shape with the shaft of first, second and third through hole 11,21,31 cooperation places, and the center of curvature of curved arc shape is positioned at the side of latch 40 shafts away from opening 22.Like this, when latch 40 inserts in through hole, convex arc one side of latch 40 is pushed the second through hole 21 outer tube 20 is held tightly.
Fig. 4 is the structural representation of embodiment bis-, and the shaft of described latch 40 is straight-bar, and the termination of latch 40 is bulb shape or wedge shape, and the aperture of first, second and third through hole 11,21,31 and the diameter of latch 40 match.Because the diameter of latch 40 and the aperture of each through hole coincide, latch 40 is in the time inserting, opening 22 dwindles and tightens up, the second through hole 21 can move to and the position of the first through hole 11 with core, has also realized outer tube 20 and be fixedly connected with reliably the object of pipe bus 10a, 10b.
According to the length difference of outer tube 20, ferrule 30 can arrange multiple, and in the present embodiment, preferably, described ferrule 30 is provided with two, and the be placed in two ends of outer tube 20 of two ferrules 30, are provided with two third through-holes 31 in each ferrule 30.Described ferrule 30 is 1mm～1000mm along the length of its shaft core direction, the length of ferrule 30 is a desired value, guarantee outer tube 20 is reliably held pipe bus 10a, 10b tightly, ferrule 30 or pin all adopt nonmagnetic substance to process, and outer tube 20 and pipe bus 10a, 10b material are identical.
Use a method of attachment for aforesaid tubular bus intermediate junction device, comprise the steps: that (A) is set in ferrule 30 on pipe bus 10a, 10b; (B) pipe bus 10a, 10b to be connected inserts from the two ends of outer tube 20 respectively, and two pipe bus joints are positioned at the middle part of outer tube 20; (C) tighten up outer tube 20 with fixture, until the outer tube wall good contact of outer tube 20 inwalls and pipe bus 10a, 10b; (D) use tightener that the ferrule 30 being set on pipe bus 10a, 10b is moved on outer tube 20 and unclamps fixture.By this step, can realize the reliable connection of pipe bus 10a, 10b, and connection procedure is simple, convenient.
In described step B, when insertion, need ensure that the position of the first through hole 11 on pipe bus 10a, 10b is corresponding with the position of the second through hole 21 on outer tube 20; In step D, after the third through-hole 31 in ferrule 30 is corresponding with the second through hole 21 positions on outer tube 20, unclamp again fixture; After described step D, also comprise the steps: that (E) inserts described latch 40 in first, second and third through hole 11,21,31.The structure of latch 40 can have multiple, describes in detail above, just repeats no more here.
Claims (7)
1. a tubular bus intermediate junction device, it is characterized in that: the joint of the pipe bus (10a, 10b) that end face corresponds to each other arranges outer tube (20), and the end of two pipe buses (10a, 10b) docking, one side is positioned at outer tube (20), the internal diameter of outer tube (20) and pipe bus (10a, 10b) external diameter matches, the opening (22) that runs through tube wall is set on the tube wall of described outer tube (20), and opening (22) arranges and extends to the two ends of outer tube (20) along the pipe shaft of outer tube (20); On the pipe shaft of outer tube (20), be arranged with ferrule (30), the external diameter of the internal diameter of ferrule (30) and outer tube (20) matches.
2. tubular bus intermediate junction device as claimed in claim 1, it is characterized in that: on the tube wall of described outer tube (20), offer the second through hole (21), the second through hole (21) has multiple and is arranged symmetrically with about opening (22); The position of upper corresponding the second through hole (21) of pipe bus (10a, 10b) and ferrule (30) arranges respectively first and third through hole (11,31), is provided with the circumferential rotation of latch (40) restriction ferrule (30), outer tube (20) and pipe bus (10a, 10b) in first, second and third through hole (11,21,31).
3. tubular bus intermediate junction device as claimed in claim 2, it is characterized in that: described first and third through hole (11,31) is with core layout, and the axle core of the second through hole (21) is positioned at the axle core of the first through hole (11) away from opening (22) one sides.
4. tubular bus intermediate junction device as claimed in claim 3, it is characterized in that: described latch (40) is curved arc shape with the shaft of first, second and third through hole (11,21,31) cooperation place, and the center of curvature of curved arc shape is positioned at the side of latch (40) shaft away from opening (22).
5. tubular bus intermediate junction device as claimed in claim 3, it is characterized in that: the shaft of described latch (40) is straight-bar, the termination of latch (40) is bulb shape or wedge shape, and the aperture of first, second and third through hole (11,21,31) and the diameter of latch (40) match.
6. the tubular bus intermediate junction device as described in claim 2-5 any one, it is characterized in that: described ferrule (30) is provided with two, the be placed in two ends of outer tube (20) of two ferrules (30), are provided with two third through-holes (31) in each ferrule (30).
7. tubular bus intermediate junction device as claimed in claim 6, it is characterized in that: described ferrule (30) is 1mm～1000mm along the length of its shaft core direction, ferrule (30) or pin all adopt nonmagnetic substance to process, and outer tube (20) is identical with pipe bus (10a, 10b) material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259002.8U CN203850454U (en) | 2014-05-20 | 2014-05-20 | Tubular bus middle connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259002.8U CN203850454U (en) | 2014-05-20 | 2014-05-20 | Tubular bus middle connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850454U true CN203850454U (en) | 2014-09-24 |
Family
ID=51563429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259002.8U Withdrawn - After Issue CN203850454U (en) | 2014-05-20 | 2014-05-20 | Tubular bus middle connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972673A (en) * | 2014-05-20 | 2014-08-06 | 浙江南网电气有限公司 | Tubular bus intermediate connection device and connection method thereof |
| CN111641056A (en) * | 2020-05-18 | 2020-09-08 | 山东中泰阳光电气科技有限公司 | Tubular bus bar connecting device |
-
2014
- 2014-05-20 CN CN201420259002.8U patent/CN203850454U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972673A (en) * | 2014-05-20 | 2014-08-06 | 浙江南网电气有限公司 | Tubular bus intermediate connection device and connection method thereof |
| CN103972673B (en) * | 2014-05-20 | 2016-05-25 | 浙江南网电气有限公司 | Tubular bus intermediate junction device and attaching method thereof |
| CN111641056A (en) * | 2020-05-18 | 2020-09-08 | 山东中泰阳光电气科技有限公司 | Tubular bus bar connecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |