CN2631086Y - Single-wall corrugated sheath tube ofr underground cable - Google Patents
Single-wall corrugated sheath tube ofr underground cable Download PDFInfo
- Publication number
- CN2631086Y CN2631086Y CN 03265156 CN03265156U CN2631086Y CN 2631086 Y CN2631086 Y CN 2631086Y CN 03265156 CN03265156 CN 03265156 CN 03265156 U CN03265156 U CN 03265156U CN 2631086 Y CN2631086 Y CN 2631086Y
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- Prior art keywords
- pipe
- single wall
- protecting pipe
- corrugated
- wall
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- Expired - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A single-walled corrugated protecting pipe is used as a buried cable, the section of the pipe wall thereof is corrugated shape of arc transition which continues twirling to form the pipe wall. The pitch of the corrugation and the external diameter of the pipe wall have a proportion relation 1:5-4:3. A pipe joint is connected between two single-walled corrugated protecting pipes, which is a pipe joint of nut shape, the section shape of the internal pipe wall thereof is in concordance with the section shape of the external pipe wall of the single-walled corrugated protecting pipe. The utility model has the advantages of corrosion resistance, high temperature resistance, high pressure resistance, good property of insulation, strong toughness, no pollution, light weight, large length, bending ability, convenient construction, and long service life. The utility model is mainly used as a protecting pipe of a buried high voltage power cable, is also used as a protecting pipe of a flame-resistant and heat-resistant communication cable, optical cable, and is used in the situation of mine ventilation, exhaust, removal of toxin.
Description
Technical field
The utility model relates to a kind of protective casing, particularly the single wall ripple protecting pipe used of high-tension electricity buried cable.
Background technology
The system of laying that high voltage power cable goes underground has been the important policy of nation-building, generally when cabling, need be protected with burying the ground protective casing.At present, the protective casing of China's buried cable generally uses asbestos pipe, steel pipe, common plastics tube, also brings into use chliorinated polyvinyl chloride (C-PVC) to manage.The asbestos pipe wholesomeness is poor, and is carcinogenic, and the intensity extreme difference, needs the reinforced concrete protection, thus great in constructing amount, the cost height.Steel pipe is then perishable, interface easily comes off, and easily causes the electric leakage injury, and cost is higher.Common plastics tube such as PVC, HDPE etc. then reactance voltage, high temperature resistant, anti-flammability do not reach requirement, have only chliorinated polyvinyl chloride (C-PVC) pipe to integrate various advantages, meet the imbedded power cable requirement.But a common drawback of above-mentioned various pipes is: length is short, bending is difficult, interface is many, the antiseep condition is poor; how to look for that a kind of high pressure resistant, high temperature resistant, flexible, length is big, convenient lays at a distance, the protection power cable has been the task of top priority away from the novel tube of extraneous stress riser (for example temperature, pressure, water infiltration, with polluter etc.).
The content of utility model
The purpose of this utility model is intended to overcome above-mentioned shortcoming, the single wall ripple protecting pipe that provide a kind of and have corrosion-resistant, high temperature resistant, high pressure resistant, good insulating, toughness is strong, pollution-free, in light weight, length is big, the buried cable of flexible, easy construction, long service life is used.
The purpose of this utility model is achieved by the following technical solution.The utility model is the single wall ripple protecting pipe that a kind of buried cable is used, and it is characterized in that:
The cross section of described tube wall is corrugated, forms tube wall by described corrugated continuous helical.
The corrugated of described tube wall cross section is the corrugated of arc transition.
The proportionate relationship of the pitch of described ripple and tube wall external diameter is 1: 5～4: 3.
Between two described single wall ripple protecting pipes, connect with pipe joint, described pipe joint is the pipe joint of nut type, the cross sectional shape of the outer tube wall of the cross sectional shape of its inner tubal wall and described single wall ripple protecting pipe matches.
In the pipe joint junction,, or seal with the thermal contraction method with fluid sealant or rubber belt sealing.
Described corrugated continuous helical is dextrorotation.
Described single wall ripple protecting pipe and pipe joint are made of modified chlorinated polyvinyl chloride.
The utility model is the tube wall with helical corrugation shape.The tube wall of this three-dimensional force structure makes the C-PVC pipe of hard have the higher ground resistance to pressure of burying, produced flexible simultaneously, therefore should manage on the make, after extrusion molding, can be wound on the relatively large reel, bury so that storage, transportation and launch is arranged in the trench of job site.This helical corrugation structure can not connect easily with the pipe joint as nut and can come off, and is convenient to sealing.Of the present utility model being also advantageous in that: it is corrosion-resistant, high temperature resistant for the electric power protecting pipe of being made by modified chlorinated polyvinyl chloride (C-PVC), good insulating, the feature of environmental protection are good, and helical corrugation shape structural pipe wall, the ring stiffness and the toughness of tubing had both been improved, make hard tubing produce flexibility again, thereby can improve the length of tubing greatly, reduce joint and problem link, intercepted extraneous stress riser effectively, can prolong the useful life of power circuit greatly.Because the pipe material inner wall cross section is slick and sly corrugated, when cable imported, the friction of generation had reduced coefficient of friction for the some contact, has made things convenient for heavy cable to import.Because can be arbitrarily crooked, but avoiding obstacles be optimized construction.
In sum, the utlity model has corrosion-resistant, high temperature resistant, high pressure resistant, good insulating, toughness is strong, pollution-free, in light weight, length is big, the advantage of flexible, easy construction, long service life.The utility model is mainly used in power department as the type ground-buried power cable protecting pipe, also can be used for having fire-retardant, the telecommunication cable of heat-resisting requirement, the protecting pipe of optical cable, also can be used for occasions such as industrial and mineral ventilation, exhaust, toxin expelling.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a connection schematic diagram of the present utility model.
Description of symbols among the figure:
The single wall ripple protecting pipe that 1 buried cable is used; The outer wall of 2 protecting pipes;
3 pipe joints; R corrugated top radius of corner; Radius of corner at the bottom of the R1 ripple;
D ripple protecting pipe external diameter; D ripple protecting pipe internal diameter; S ripple pitch;
Embodiment is that 65 single wall ripple protecting pipe is that example is illustrated with specification:
As Fig. 1, the utility model is the single wall ripple protecting pipe 1 that a kind of buried cable is used, and the cross section of described tube wall is corrugated, forms tube wall by described corrugated continuous helical.
The corrugated of described tube wall cross section is the corrugated of arc transition.Corrugatedly be connected into by tip circle angular radius R and end radius of corner R1, the two can equate, also can be unequal,
Described ripple pitch S=20 millimeter, ripple protecting pipe outer diameter D=82 millimeters, 65 millimeters of internal diameters, 200 meters of length.
As Fig. 2, between two described single wall ripple protecting pipes 1, connect with pipe joint 3, described pipe joint 3 is the pipe joint of nut type, the cross sectional shape of the outer wall 2 of the cross sectional shape of its inwall and described single wall ripple protecting pipe 1 matches.
In the junction of pipe joint 3, use rubber belt sealing.The described corrugated continuous helical of present embodiment is dextrorotation.The described single wall ripple of present embodiment protecting pipe 1 and pipe joint 3 usefulness modified chlorinated polyvinyl chlorides are made.
Making the used equipment of the utility model product is applicant patent " a kind of ripple multi-cavity optical cable protecting casing composite molding machine " patent No.: ZL01232652.6 formerly; " a kind of devices for taking-up of ripple optical cable conduit " disclosed special equipment of the patent No.: ZL02244135.2.
Claims (7)
1, the single wall ripple protecting pipe used of a kind of buried cable is characterized in that:
The cross section of described tube wall is corrugated, forms tube wall by described corrugated continuous helical.
2, the single wall ripple protecting pipe used of buried cable according to claim 1 is characterized in that: corrugated for arc transition of described tube wall cross section corrugated.
3, the single wall ripple protecting pipe used of buried cable according to claim 1 and 2, it is characterized in that: the proportionate relationship of the pitch of described ripple and tube wall external diameter is 1: 5～4: 3.
4, the single wall ripple protecting pipe used of buried cable according to claim 3, it is characterized in that: between two described single wall ripple protecting pipes, connect with pipe joint, described pipe joint is the pipe joint of nut type, and the cross sectional shape of the outer tube wall of the cross sectional shape of its inner tubal wall and described single wall ripple protecting pipe matches.
5, the single wall ripple protecting pipe used of buried cable according to claim 4 is characterized in that: in the pipe joint junction, with fluid sealant or rubber belt sealing, or seal with the thermal contraction method.
6, the single wall ripple protecting pipe of using according to claim 1 or 4 described buried cables is characterized in that: described corrugated continuous helical is dextrorotation.
7, the single wall ripple protecting pipe used of buried cable according to claim 4, it is characterized in that: described single wall ripple protecting pipe and pipe joint are made of modified chlorinated polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265156 CN2631086Y (en) | 2003-06-05 | 2003-06-05 | Single-wall corrugated sheath tube ofr underground cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265156 CN2631086Y (en) | 2003-06-05 | 2003-06-05 | Single-wall corrugated sheath tube ofr underground cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2631086Y true CN2631086Y (en) | 2004-08-04 |
Family
ID=34297665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03265156 Expired - Fee Related CN2631086Y (en) | 2003-06-05 | 2003-06-05 | Single-wall corrugated sheath tube ofr underground cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2631086Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101142726B (en) * | 2005-03-15 | 2010-12-01 | 戴特札札勒有限公司 | Tube |
| CN102560502A (en) * | 2012-01-18 | 2012-07-11 | 中山市汇诚材料科技有限公司 | Auxiliary anode-flexible anode node sealing structure for cathodic protection |
| CN104952533A (en) * | 2015-06-11 | 2015-09-30 | 深圳市骏鼎达科技有限公司 | Composite bushing, composite corrugated sleeve and manufacturing method of composite corrugated sleeve |
| EP2869418A3 (en) * | 2013-10-29 | 2015-12-09 | REHAU AG + Co | Use of a tubing assembly |
| CN108690986A (en) * | 2018-05-07 | 2018-10-23 | 五冶集团上海有限公司 | The anti-corrosion method of cable protection pipe fitting and nozzle under wet environment |
-
2003
- 2003-06-05 CN CN 03265156 patent/CN2631086Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101142726B (en) * | 2005-03-15 | 2010-12-01 | 戴特札札勒有限公司 | Tube |
| CN102560502A (en) * | 2012-01-18 | 2012-07-11 | 中山市汇诚材料科技有限公司 | Auxiliary anode-flexible anode node sealing structure for cathodic protection |
| EP2869418A3 (en) * | 2013-10-29 | 2015-12-09 | REHAU AG + Co | Use of a tubing assembly |
| CN104952533A (en) * | 2015-06-11 | 2015-09-30 | 深圳市骏鼎达科技有限公司 | Composite bushing, composite corrugated sleeve and manufacturing method of composite corrugated sleeve |
| CN108690986A (en) * | 2018-05-07 | 2018-10-23 | 五冶集团上海有限公司 | The anti-corrosion method of cable protection pipe fitting and nozzle under wet environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Qingdao city qutangxia Road No. 51, building 1, unit 1, 201, zip code: 266002 Patentee after: Xu Lingxiu Address before: No. 308, 268 National Road, Shandong, Qingdao: 266100 Patentee before: Xu Lingxiu |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040804 Termination date: 20110605 |