CN201868828U - Non-excavation underground type high voltage power cable corrugated pipe - Google Patents
Non-excavation underground type high voltage power cable corrugated pipe Download PDFInfo
- Publication number
- CN201868828U CN201868828U CN2010206327654U CN201020632765U CN201868828U CN 201868828 U CN201868828 U CN 201868828U CN 2010206327654 U CN2010206327654 U CN 2010206327654U CN 201020632765 U CN201020632765 U CN 201020632765U CN 201868828 U CN201868828 U CN 201868828U
- Authority
- CN
- China
- Prior art keywords
- power cable
- high voltage
- voltage power
- corrugated pipe
- ring portion
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a non-excavation underground type high voltage power cable corrugated pipe. The corrugated pipe is characterized in that a convex ring part (3) is formed along the periphery of the outer wall (1) of the corrugated pipe, and the closely-formed periphery is concentric with that of the radial cross section of the corrugated pipe; and a corresponding groove ring part (4) is formed at the inner wall (2) of the corrugated pipe along the convex ring part (3). In the utility model, the high voltage power cable corrugated pipe for non-excavation burying does not need excavation on the ground when the underground burying is carried out, and has less influence on transportation and running of a city; with the help of clearance formed by the convex ring part and the groove ring part and the selection of materials of a pipe, the high voltage power cable corrugated pipe has good bendability and moderate extensibility; under the condition that the laid lines are winding and circuitous, the corrugated pipe can be bent naturally for meeting the complex changing of the laid lines; the coiled corrugated pipe is small in occupied area, is beneficial to construction and transportation under narrow environment, and simultaneously does not need welding heads for pipeline connection, so that the whole quality of the pipelines is improved.
Description
Technical field
The utility model relates to the power cable field; particularly; the utility model relates to a kind of protection pipe box that applies to the buried high voltage power cable of non-excavation; use the protection pipe box of high voltage power cable of the present utility model; can excavate ground as in the past, high voltage power cable can be buried underground underground.
Background technology
The construction development in city proposes higher requirement to the provided underground cable.Because the complexity and the particularity of urban environment; the buried cable laying form of construction work of non-excavation is to urban environment; the people's lives influence is than other modes little (for example grooving pipe laying form of construction work); be the preferable form of construction work of present city cable laying, the performance requirement that the protection pipe box requires and this form of construction work adapts.
At present disclosed is a kind of MPP pipe (power cable protecting pipe) for what cooperate this form of construction work use, and the MPP pipe claims the MPP power cable protecting pipe again, and the employing modified polypropene is a main raw material(s).
Yet the MPP pipe is hollow and the inside and outside smooth insulation pipe of tube wall, and this pipe is the walled tube of rigid pipe, and the problem of its existence is:
At first, described MPP pipe is buried underground c underground often must excavation ground, its trouble of constructing, and the traffic in city, operation etc. are caused bigger influence.For example, the selection of caliber is selected according to other condition of the outside diameter of cable, allowable voltage, electric current and engineering; Need relevant department's regulation and customer requirements ditching, its width, degree of depth fibrous root are decided according to the cabling radical.The cement embedding must be used for preventing its winding or extruding in the place of camber; At two protecting pipe connector places, must use PVC sealant tape winding etc. again with brick and the protecting pipe tube head is fixed with cement.
Secondly, the tortuous circuitous occasion in the path of laying power cable, the MPP pipe of the planomural of the rigid insulation that described inside and outside tube wall is smooth can't be complied with the complicated and changeable of laying-out as natural torsion, limits its environment for use;
Moreover the MPP pipe is deposited in the job site and takies very big construction site, is unfavorable for constructing under narrow environment, simultaneously, also the traffic in city, operation etc. is caused bigger influence.
In addition, for transportation, the tortuosity of laying-out is considered, the MPP length of tube is limited, and its maximum length is generally about 9 meters, like this, length needs many MPP pipes to be made of welded connection apart from cable laying, not only increase construction intensity, and there is hidden danger of quality in this being welded to connect, reduced MPP pipe total quality.
The utility model content
At the problems referred to above, the primary technical problem that the utility model solves is: provide a kind of non-excavation buried high voltage power cable bellows, the buried high voltage power cable bellows of described non-excavation can be complied with the different paths of laying as natural torsion, buries the protective casing of high voltage power cable underground as non-excavation ground; And be suitable under narrow municipal construction environment, using, very little to the influence on system operation such as urban transportation of constructing period.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
The buried high voltage power cable bellows of a kind of non-excavation is formed with corrugated projection ring portion 3 along outer wall 1 circumference of described bellows, and its closed circumference that forms is concentric with bellows radial cross-section circumference; The inwall 2 of described bellows forms corresponding ripple groove ring portion 4 along corrugated projection ring portion 3 shapes.
Because the MPP of the planomural of the rigid insulation that inside and outside tube wall is smooth pipe all is (being exactly hard) of rigidity generally, can't be arbitrarily crooked, by being installed, these pipelines also can not only follow pipe with one, bellows is flexible, bending easily, elongation, compression (certain angle of bend, the elongation compression factor is all restricted).
A preferred version of the present utility model is: adjacent corrugated projection ring portion 3 fixed interval distance is regularly arranged, and adjacent ripple groove ring portion 4 fixed interval distance is regularly arranged.
A preferred version of the present utility model is: described corrugated projection ring portion 3 bottoms are circular-arc, and described ripple groove ring portion 4 bottoms are circular-arc.
According to the utility model, the FATP material that described bellows body material is modification.
The FATP material is mainly filled a prescription and is:
Strengthen with short fiber 5～10 weight portions;
Nylon 5～10 weight portions;
Polypropylene 60～85 weight portions;
Each analog assistant 1～5 weight portion.
Preferably, the FATP material is mainly filled a prescription and is:
Strengthen with short fiber 5～8 weight portions;
Nylon 5～8 weight portions;
Polypropylene 80～85 weight portions;
Each analog assistant 1～2 weight portion.
The FATP material of modification has following advantage:
Good heat resistance: can adapt to the high temperature that the power cable use produces because of the overload short circuit.
Good electric property: material self shows as than high insulation resistance and specific insulation, and fail safe is good.
Excellent decay resistance and ageing resistace: be applicable to various soil and operational environment, long service life.
Inner wall smooth is smooth, coefficient of friction is little, and anti-wear performance is good, can reduce the infringement to cable in the cable laying process greatly, increases work efficiency.
Compare with traditional asbestos-cement pipe, in light weight, flexible good, the shock resistance and the anti-differential settlement of product are good, need not to seal at the construction field (site) pouring concrete; The transportation easy construction, expense is low, greatly the reduction of erection time.
A preferred version of the present utility model is: described inside diameter of bel is 150-250mm, described inside diameter of bel and bottom, described corrugated projection ring portion (3) bore place are 5-12 to the ratio of the height of outer wall (1): 1, and described corrugated projection ring portion (3) wall thickness is 3-8mm.
A preferred version of the present utility model is: described inside diameter of bel is 150-250mm, described inside diameter of bel and bottom, described corrugated projection ring portion (3) bore place are 5.5-7.5 to the ratio of the height of outer wall (1): 1, and described corrugated projection ring portion (3) wall thickness is 3-8mm.
A preferred version of the present utility model is: described corrugated projection ring portion (3) wall thickness is 3.5-5.5mm.
The buried high voltage power cable bellows construction of non-excavation of the present utility model is as follows:
Region two ends of burying high voltage power cable at need underground excavate two vertical respectively, the suitable conduit excavator digs out the underground piping that is communicated with two end vertical mouths, with the buried high voltage power cable bellows of non-excavation of the present utility model draw into, or push, run through described underground piping, release from another vertical mouth.Then, the high voltage power cable that need are buried underground is after the buried high voltage power cable bellows of described non-excavation draws this pipeline, by other port traction vertical mouth.The bellows that connects excision above ground portion behind the described high voltage power cable.
According to the buried high voltage power cable bellows of non-excavation of the present utility model, need not excavate ground when burying underground construction underground, traffic, the operation in city there are not bigger influence; By protruding ring portion and formed space of groove ring portion and body Material Selection, make its ductility with good bendability and appropriateness, under the tortuous circuitous situation of laying-out, the utility model can be complied with the complicated and changeable of laying-out as natural torsion; The bellows floor space of coiling is little, is beneficial under narrow environment construction and transportation, and simultaneously, the joint that need not pipeline connects improves the total quality of pipeline; Ripple struction can be strengthened pipeline to the soil resistance of loading; Good seal, the place use high in level of ground water more can show its superiority.
Description of drawings
Fig. 1 is the radial section structure chart of the buried high voltage power cable bellows of non-excavation of the present utility model.
Embodiment
Below, according to embodiment, in conjunction with the accompanying drawings embodiment of the present utility model is elaborated.
Embodiment 1-3
As shown in Figure 1, inside and outside wall 2,1 circumference of bellows is formed with the bottom is circular arc for protruding ring portion 3 of the corrugated of circular arc and relative bottom ripple groove ring portion 4, its closed circumference that forms is concentric with bellows radial cross-section circumference, projection ring portion 3 and corresponding ripple groove ring portion 4 are pressed fixed range along the regularly arranged unlimited extension of pipe range, constitute separate one by one ripple struction.This ripple struction has not only improved the moment of inertia of tubing, has improved the combination property of tubing, and the flexibility of tubing is enhanced simultaneously, can carry out coiling of certain-length; The utility model ductility and good bendability are specifically, if the utility model bellows is bent to circle, more close than the distance under the straightened condition near the distance between the adjacent protrusion ring portion 3 in the center of circle, the openend of the groove ring portion 4 in the corresponding close center of circle is expanded more than the distance under the straightened condition; Away from the distance between the adjacent protrusion ring portion 3 in the center of circle than the distance under the straightened condition more away from, the openend of corresponding groove ring portion 4 away from the center of circle is more close than the distance under the straightened condition.
The MPP that compares pipe is owing to the utlity model has good bendability, all can coil in transportation and construction site and take in, and area occupied reduces greatly than the MPP pipe, is particularly suitable for constructing in narrow construction site; Owing to can coil and take in, one-time formed body length is a lot of than the MPP pipe range, when laying long distance line, and the corresponding joint that reduces tube and tube, when the complications that run into laying-out were circuitous, the utility model can be complied with the complex conditions of laying the path by natural torsion.
The utility model ripple struction ratio: described inside diameter of bel is 152-225mm, described inside diameter of bel and bottom, described corrugated projection ring portion (3) bore place are 5-12 to the ratio of the height of outer wall (1): 1, and described corrugated projection ring portion (3) wall thickness is 3-8mm.
From structure proportion as can be seen the bellows pipe thickness fix, this structure proportion helps the saving of body material.
What the utility model tube material was selected for use is the FATP material of modification.The FATP material is mainly filled a prescription and is:
Strengthen with short fiber 5～10 weight portions; Nylon 5～10 weight portions; Polypropylene 60～85 weight portions; Each analog assistant 1～5 weight portion.
Region two ends of burying high voltage power cable at need underground excavate two vertical respectively, use the pipeline excavator to dig out the underground piping that is communicated with two end vertical mouths, with the buried high voltage power cable bellows of non-excavation of the present utility model draw into, or push, run through described underground piping, release from another vertical mouth.Then, the high voltage power cable that need are buried underground is after the buried high voltage power cable bellows of described non-excavation draws this pipeline, by other port traction vertical mouth.The bellows that connects excision above ground portion behind the described high voltage power cable.The buried high voltage power cable of non-excavation of the present utility model is buried underground and is finished.
Adopt the FATP material of modification, no matter intensity, thermal endurance, the relative MPP material of hard and soft property from material has further improvement, following table 1,2nd, the FATP of embodiment 1-3 and MPP material and pipe performance relatively:
Table 1
Table 2
Table 3 is the bellows specification of each embodiment.
| Internal diameter (mm) | External diameter (mm) | Wall thickness (mm) | |
| |
150 | 183 | 4.5 |
| |
175 | 205 | 5.0 |
| Embodiment 3 | 200 | 235 | 5.5 |
Table 4 is the Main physical mechanical property of embodiment 1-3 bellows tubing
Table 5
Table 6 be the bellows of embodiment 1-3 with relatively with the size of diameter tubing in the past
| MPP tubing | The FATP bellows | MPP tubing | The FATP bellows | |
| Compare specification | DN180*12.0 | DN152*3.5 | DN200*13.0 | DN177*4.0 |
| Internal diameter | 156 | 152 | 174 | 177 |
| Tube outer diameter | 180 | 189 | 200 | 215 |
| Wall thickness | 12.0 | 3.5 | 13.0 | 4.0 |
From the comparison of last table, the utility model pipe thickness is thin more a lot of than MPP tubing, and this helps the flexural deformation of bellows.
Table 7 is the bellows operating expenses comparison of pipeline in the past of embodiment 1-3:
| MPP tubing | The FATP bellows | |
| Specification | DN180*12.0 | DN152*3.5 |
| Engineering consumption (m) | 2160 | 2160 |
| Pulling eye length (m) | 108 | 108 |
| Hole count | 20 | 20 |
| Link cost | 7200 | 1000 |
| Weld time (h) | 40 | 0 |
Embodiment 4-6
Except described bellows material was chliorinated polyvinyl chloride (PVC-C), other made the buried high voltage power cable bellows of non-excavation of the present utility model as embodiment 1-3.
According to the buried high voltage power cable bellows of non-excavation of the present utility model, need not excavate ground when burying underground construction underground, traffic, the operation in city there are not bigger influence; By protruding ring portion and formed space of groove ring portion and pipe Material Selection, make its ductility with good bendability and appropriateness, under the tortuous circuitous situation of laying-out, the utility model can be complied with the complicated and changeable of laying-out as natural torsion; The bellows floor space of coiling is little, is beneficial under narrow environment construction and transportation, and simultaneously, the joint that need not pipeline connects improves the total quality of pipeline; Ripple struction can be strengthened pipeline to the soil resistance of loading; Good seal, the place use high in level of ground water more can show its superiority.The utility model is applicable to association areas such as telecommunications, railway, highway, tunnel, telecommunication cable, broadcast TV line protective casing.
Claims (6)
1. buried high voltage power cable bellows of non-excavation is characterized in that: outer wall (1) circumference along described bellows is formed with corrugated projection ring portion (3), and its closed circumference that forms is concentric with bellows radial cross-section circumference; The inwall of described bellows (2) forms corresponding ripple groove ring portion (4) along protruding ring portion (3) shape.
2. according to the buried high voltage power cable bellows of the described non-excavation of claim 1, it is characterized in that: adjacent corrugated projection ring portion (3) is regularly arranged with corresponding ripple groove ring portion (4) spacing distance.
3. according to the buried high voltage power cable bellows of the described non-excavation of claim 1, it is characterized in that: described pipeline corrugated projection ring portion (3) bottom is circular-arc, and described ripple groove ring portion (4) bottom is circular-arc.
4. according to the buried high voltage power cable bellows of the described non-excavation of claim 1, it is characterized in that: described inside diameter of bel is 150-250mm, described inside diameter of bel and bottom, described corrugated projection ring portion (3) bore place are 5-12 to the ratio of the height of outer wall (1): 1, and described corrugated projection ring portion (3) wall thickness is 3-8mm.
5. according to the buried high voltage power cable bellows of the described non-excavation of claim 4, it is characterized in that: described inside diameter of bel and bottom, described corrugated projection ring portion (3) bore place are 5.5-7.5 to the ratio of the height of outer wall (1): 1, and described corrugated projection ring portion (3) wall thickness is 3-8mm.
6. according to claim 4 or the buried high voltage power cable bellows of 5 described non-excavations, it is characterized in that: described corrugated projection ring portion (3) wall thickness is 3.5-5.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206327654U CN201868828U (en) | 2010-11-30 | 2010-11-30 | Non-excavation underground type high voltage power cable corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206327654U CN201868828U (en) | 2010-11-30 | 2010-11-30 | Non-excavation underground type high voltage power cable corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868828U true CN201868828U (en) | 2011-06-15 |
Family
ID=44139971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206327654U Expired - Fee Related CN201868828U (en) | 2010-11-30 | 2010-11-30 | Non-excavation underground type high voltage power cable corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201868828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055158A (en) * | 2010-11-30 | 2011-05-11 | 上海市电力公司 | Trenchless buried type high voltage power cable bellows |
-
2010
- 2010-11-30 CN CN2010206327654U patent/CN201868828U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055158A (en) * | 2010-11-30 | 2011-05-11 | 上海市电力公司 | Trenchless buried type high voltage power cable bellows |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7550669B2 (en) | Slip-joint connection for electric service conduit to service boxes | |
| CN102055158A (en) | Trenchless buried type high voltage power cable bellows | |
| CN101752820B (en) | Underground cable protective sleeve | |
| CN109458757B (en) | Static drilling root planting energy pile and production method and construction method thereof | |
| CN206174001U (en) | Prefabricated movement joint tube coupling and prefabricated assembled utility tunnel | |
| CN201868828U (en) | Non-excavation underground type high voltage power cable corrugated pipe | |
| CN205557584U (en) | Steel pipe corridor and large -scale utility tunnel system | |
| CN110671542A (en) | Socket type corrugated reinforced double-flat-wall composite pipe and manufacturing method thereof | |
| CN103775100B (en) | A kind of prefabricated assembled city integrated piping lane | |
| CN206802552U (en) | A kind of non-excavation type push pipe | |
| CN212080489U (en) | Multilayer anti-burst PE pipe | |
| CN214889560U (en) | Telescopic pipeline connector | |
| CN201639248U (en) | Underground cable protective casing | |
| CN211649434U (en) | Internal stop type rubber ring butt joint structure of winding pipe | |
| CN206736961U (en) | A kind of Novel steel-plastic composite pipe corridor | |
| CN2631086Y (en) | Single-wall corrugated sheath tube ofr underground cable | |
| CN113224722A (en) | Buried high-pressure-resistance external-force-resistance diamond-shaped cable protection composite sleeve and sleeve assembly | |
| CN215891439U (en) | High-strength double-wall winding pipe | |
| CN210201451U (en) | PVC communication pipeline for urban underground comprehensive pipe gallery | |
| CN207117138U (en) | A kind of cable protection pipe | |
| CN205489410U (en) | Bury ground wire and cable carbon element screwed pipe for sheath | |
| CN215071572U (en) | Electric power protection tube buckling tube | |
| CN216976076U (en) | PPR water supply pipe | |
| CN219120015U (en) | Composite polyvinyl chloride double-wall corrugated pipe | |
| CN212377463U (en) | Connecting structure of wall-through embedded sleeve and water stop steel plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI DIANWU COLLECTIVE ASSETS MANAGEMENT CO., Free format text: FORMER OWNER: SHANGHAI QIN'GONG LINE + EQUIPMENT CO., LTD. SHANGHAI SHENHE PLASTIC CO., LTD. Effective date: 20120926 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120926 Address after: 200122, 1122 deep road, Huangpu District, Shanghai Patentee after: Shanghai Electric Power Corporation Patentee after: Shanghai Electrophysics Collective Asset Management Co.,Ltd. Patentee after: Shanghai Shenhe Plastic Industry Co., Ltd. Address before: 200122, 1122 deep road, Huangpu District, Shanghai Patentee before: Shanghai Electric Power Corporation Patentee before: Shanghai Qingong Wire Equipment Co., Ltd. Patentee before: Shanghai Shenhe Plastic Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20191130 |