CN106410692A - Track device used for cable turning tube-through laying - Google Patents
Track device used for cable turning tube-through laying Download PDFInfo
- Publication number
- CN106410692A CN106410692A CN201610910604.9A CN201610910604A CN106410692A CN 106410692 A CN106410692 A CN 106410692A CN 201610910604 A CN201610910604 A CN 201610910604A CN 106410692 A CN106410692 A CN 106410692A
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- CN
- China
- Prior art keywords
- cable
- turning
- pipe
- rail set
- installation
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to a track device used for cable turning tube-through laying. The device comprises one or multiple end-to-end cable turning components. Each cable turning component comprises one or multiple cable turning units which are connected in parallel. Each cable turning unit comprises an arc external tube and a lining tube which are arranged from outside to inside in turn. The cable is arranged in the lining tube. Compared with the devices in the prior art, the track device used for cable turning tube-through laying has the advantages that the cable broken accident can be reduced, the construction work intensity of the workers can be reduced, the working efficiency can be enhanced, the construction cost can be reduced, the environment-friendly cable line can be established and the range of application is wide.
Description
Technical field
The present invention relates to cable laying field, especially relate to a kind of rail set for turning of cable cable installation in pipe.
Background technology
In distribution engineering, cable directly buried installation is met when turning, and existing process adopts two ways：Or adopt transition well
Or do not adopt any protection directly to turn.Both technique has clearly disadvantageous part：Transition well floor space is big, need to show
Pour shield, cause that difficulty of construction is big, low construction efficiency and long construction period.And do not adopt the defect that any protection is directly turned to exist
Easily it is subject in cable that external force is destroyed or lateral pressure is excessive causes recessive accident.
At this stage transition wellhole position setting be fixing (2*5 hole), and actually used in, 1-4 root cable is with loop feelings
Condition is relatively more, but also needs to arrange a transition well, makes hole position utilization rate less than 50%.Meanwhile, cable length shorter but turn
In the case of more, it is respectively provided with a transition well at each turning it is clear that unreasonable.And, transition well cost is higher, in a large number
Using uneconomical.
Content of the invention
The purpose of the present invention is exactly to overcome the defect of above-mentioned prior art presence to provide a kind of minimizing to break outside cable
Accident, the workman's construction operation intensity that mitigates, the work efficiency that improves, the construction costs that reduces, built environment friendly cable run, suitable
With the wide rail set for turning of cable cable installation in pipe of scope.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of rail set for turning of cable cable installation in pipe, this device includes one or more end to end cables
Turning assembly, each turning of cable assembly includes the turning of cable units of one or more parallel connections, described turning of cable unit
The circular arc outer tube setting gradually including ecto-entad and internal lining pipe, described cable is arranged in internal lining pipe.
The radius of turn of described turning of cable unit is 150mm.
The angle of turn of described turning of cable unit includes 15 °, 30 ° and 45 °.
Described circular arc outer tube is concrete reinforced pipe, by steel reinforcement cage and concreting molding.
Described internal lining pipe is glass reinforced plastic pipe.
Described steel reinforcement cage is by longitudinal reinforcement, stirrup and fixing reinforcing bar binding molding.
Described turning of cable unit is monotrysian type structure, is provided only with a cable in each turning of cable unit.
Compared with prior art, the present invention has advantages below：
1st, reduce broken accident outside cable：In distribution network engineering, the crosslinked polyetylene insulated pvc sheath copper of non-armouring
When core cable (YJV type) adopts poling road system of laying, bend protection device or transition must be adopted at cable channel turning
Well, the present invention sets gradually frp lining pipe and armored concrete outer tube in the outer surface of cable, decreases cable external force and breaks
Makeing things worse, former and lateral pressure is excessive causes cable recessiveness accident to occur.
2nd, mitigate workman's construction operation intensity：At present in cable constructions project, especially with G2/G5 type transition well using the most
Frequently, its need scene to dig pit, assembling reinforcement net, casting concrete, manually operate completely, working strength is very big, the present invention
Rail set be prefabrication type structure, mitigate workman construction operation intensity.
3rd, improve work efficiency：The concrete of cast in situs, it is necessary to there be certain curing period, makes the cable construction duration compare
Long, extremely inharmonious with the fast pace of urban construction, the rail set of the present invention substitutes the excavation type transition well using at present, effectively
Improve work efficiency.
4th, reduce construction costs：The current average cost of transition well is at 15000 yuan about, and uses same amount of cable curved
Road construction costs, at 5000 yuan about, can save about 10000 yuan of expense, and in house supporting project, the transition well of use
Up to tens, or even up to a hundred, the reducing effect highly significant to cost.
5th, built environment friendly cable run：Because cable bend is prefabricated, and it is embedded in underground, be not take up soil
Ground, surface layer can also plant greening, therefore can realize environmental friendliness with surrounding enviroment harmonious coexistence.
6th, applied widely：The present invention can adapt to different bent angles, the different outside diameter of cable, different cable return number, different electricity
The situation of cable amount of parallelism, only need to have stronger relevance grade according to practical situation spicing forming type.
Brief description
Fig. 1 is 45 ° of A type cable elbow structure schematic diagrams.
Fig. 2 is 45 ° of Type B cable elbow structure schematic diagrams.
Fig. 3 is 45 DEG C of type cable elbow structure schematic diagrams.
Fig. 4 is Type B and c-type cable bend socket join structure schematic diagram.
Wherein, 1, circular arc outer tube, 2, steel reinforcement cage, 3, internal lining pipe.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment：
As Figure 1-4, assembly of the invention structure is cast using armored concrete, forms cylindrical bend.Inside use steel
Muscle interlocks colligation, forms steel reinforcement cage.Bushing pipe adopts glass reinforced plastic pipe, makes coefficient of friction≤0.35, and cable pulling is moved using sliding
Mode, bend center radius of turn adopts 150mm, more than 2 times of the 10KV/240mm2 outside diameter of cable (75mm), meets cable bend
Inwall is more than the requirement of 1.5 times of the outside diameter of cable, and cable bend adopts single hole arrangements form, if lay N root cable simultaneously, adopts
N number of single hole cable bend is assembled to be used, and cable bend has multiple angles to select, and has 15 °, 30 ° and 45 °, can be arbitrarily assembled, meets
The construction demand of 15 °, 30 °, 45 °, 60 °, 75 ° and 90 °, concrete scantling is as shown in table 1.
Table 1 cable bend gauge material table
The operation principle of the present invention is as follows：
1st, straight horizontal pull strength：
The external force overcoming frictional resistance trailing cable movement is referred to as pull strength, cable pulling typically adopt electrical hoist or
Caterpillar tractor, hoist engine pull strength should be not more than 30kN.
Mathematic(al) representation is as follows：
T1=WL μ+T0
Wherein, T1For horizontal drag force, W is the gravity of cable unit length, and L is cable length, and μ is coefficient of friction, T0For
Initial traction force.
2nd, horizontal drag force after corner
After turning, pull strength changes cable with the number of degrees of corner, the horizontal drag force mathematical expression after change
Formula is as follows：
T2=T1euθ
Wherein, T2For horizontal drag force after corner, T1For horizontal drag force before corner, e is computational constant, and u is friction system
Number, θ is turning radian.
3rd, cable corner lateral pressure
Act on that on cable, pressure in vertical direction is referred to as lateral pressure with its conductor, lateral pressure occurs mainly in traction electricity
Sweep (arc board groove is slided, roller rotates etc.) during cable.Lateral pressure is controlled to be in order to avoid protective coverings of cable is injured, electricity
Cable flattens and causes hidden failure.Cable lateral pressure is directly proportional to pull strength, is inversely proportional to bending radius, and cable allows lateral pressure not
More than 3KN/M.It is mathematically represented as formula：
P=T/R
Wherein, P is cable lateral pressure, and T is horizontal drag force, and R is Cable Bending Radius.
After measuring and calculating, after can drawing using cable bend, under conditions of meeting cable pulling power and corner lateral pressure, respectively
Maximum linear length before O. cable angle of turn and corner, as shown in table 2：
Claims (7)
1. a kind of rail set for turning of cable cable installation in pipe is it is characterised in that this device includes one or more head and the tail
The turning of cable assembly connecting, each turning of cable assembly includes the turning of cable units of one or more parallel connections, described electricity
Cable turning unit includes circular arc outer tube (1) and the internal lining pipe (3) that ecto-entad sets gradually, and described cable is arranged on liner
In pipe (3).
2. a kind of rail set for turning of cable cable installation in pipe according to claim 1 is it is characterised in that described
The radius of turn of turning of cable unit is 150mm.
3. a kind of rail set for turning of cable cable installation in pipe according to claim 1 is it is characterised in that described
The angle of turn of turning of cable unit includes 15 °, 30 ° and 45 °.
4. a kind of rail set for turning of cable cable installation in pipe according to claim 1 is it is characterised in that described
Circular arc outer tube (1) is concrete reinforced pipe, by steel reinforcement cage (2) and concreting molding.
5. a kind of rail set for turning of cable cable installation in pipe according to claim 1 is it is characterised in that described
Internal lining pipe (3) is glass reinforced plastic pipe.
6. a kind of rail set for turning of cable cable installation in pipe according to claim 4 is it is characterised in that described
Steel reinforcement cage (2) is by longitudinal reinforcement, stirrup and fixing reinforcing bar binding molding.
7. a kind of rail set for turning of cable cable installation in pipe according to claim 1 is it is characterised in that described
Turning of cable unit is monotrysian type structure, is provided only with a cable in each turning of cable unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910604.9A CN106410692A (en) | 2016-10-19 | 2016-10-19 | Track device used for cable turning tube-through laying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910604.9A CN106410692A (en) | 2016-10-19 | 2016-10-19 | Track device used for cable turning tube-through laying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106410692A true CN106410692A (en) | 2017-02-15 |
Family
ID=58012159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610910604.9A Pending CN106410692A (en) | 2016-10-19 | 2016-10-19 | Track device used for cable turning tube-through laying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106410692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797827A (en) * | 2019-11-13 | 2020-02-14 | 华南理工大学 | Precast concrete module for cable duct bank |
| CN113746031A (en) * | 2021-08-23 | 2021-12-03 | 国网上海市电力公司 | Synchronous laying and automatic inspection method and system for high-temperature superconducting cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1309054A4 (en) * | 2000-08-07 | 2005-07-20 | Ashimori Ind Co Ltd | Method and structure for laying communication cable in underground line, and members used for laying |
| CN102776950A (en) * | 2012-08-15 | 2012-11-14 | 中冶建工集团有限公司 | Construction method of concrete packing light pipeline |
| CN203859457U (en) * | 2014-05-19 | 2014-10-01 | 广东威恒输变电工程有限公司 | High-voltage cable tube |
| CN203911398U (en) * | 2014-06-30 | 2014-10-29 | 葛洲坝集团电力有限责任公司 | Prefabricated concrete cable passing-through pipe |
| CN205070335U (en) * | 2015-10-13 | 2016-03-02 | 安徽华然装饰集团有限责任公司 | Structure is laid to circuit line pipe suitable for corner |
| CN205385257U (en) * | 2016-03-17 | 2016-07-13 | 国网浙江省电力公司金华供电公司 | Prefabricated cable passage turn structure |
| CN206135311U (en) * | 2016-10-19 | 2017-04-26 | 国网上海电力设计有限公司 | A rail set that is used for cable turn poling to lay |
-
2016
- 2016-10-19 CN CN201610910604.9A patent/CN106410692A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1309054A4 (en) * | 2000-08-07 | 2005-07-20 | Ashimori Ind Co Ltd | Method and structure for laying communication cable in underground line, and members used for laying |
| CN102776950A (en) * | 2012-08-15 | 2012-11-14 | 中冶建工集团有限公司 | Construction method of concrete packing light pipeline |
| CN203859457U (en) * | 2014-05-19 | 2014-10-01 | 广东威恒输变电工程有限公司 | High-voltage cable tube |
| CN203911398U (en) * | 2014-06-30 | 2014-10-29 | 葛洲坝集团电力有限责任公司 | Prefabricated concrete cable passing-through pipe |
| CN205070335U (en) * | 2015-10-13 | 2016-03-02 | 安徽华然装饰集团有限责任公司 | Structure is laid to circuit line pipe suitable for corner |
| CN205385257U (en) * | 2016-03-17 | 2016-07-13 | 国网浙江省电力公司金华供电公司 | Prefabricated cable passage turn structure |
| CN206135311U (en) * | 2016-10-19 | 2017-04-26 | 国网上海电力设计有限公司 | A rail set that is used for cable turn poling to lay |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797827A (en) * | 2019-11-13 | 2020-02-14 | 华南理工大学 | Precast concrete module for cable duct bank |
| CN113746031A (en) * | 2021-08-23 | 2021-12-03 | 国网上海市电力公司 | Synchronous laying and automatic inspection method and system for high-temperature superconducting cable |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
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| RJ01 | Rejection of invention patent application after publication |