CN103178478A - Modified polypropylene protection tube for buried high-voltage power cables - Google Patents
Modified polypropylene protection tube for buried high-voltage power cables Download PDFInfo
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- CN103178478A CN103178478A CN2011104330083A CN201110433008A CN103178478A CN 103178478 A CN103178478 A CN 103178478A CN 2011104330083 A CN2011104330083 A CN 2011104330083A CN 201110433008 A CN201110433008 A CN 201110433008A CN 103178478 A CN103178478 A CN 103178478A
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- protection tube
- voltage power
- tube
- modified polypropylene
- buried high
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Abstract
A modified polypropylene protection tube for buried high-voltage power cables belongs to the technical field of protection tubes and comprises a tube body. The modified polypropylene protection tube is characterized in that the tube is formed by two layers in co-extrusion mode, wherein a modified polypropylene tube is arranged on the inner layer, a polypropylene tube is arranged on the outer layer, and a glass fiber layer is arranged between the inner layer and the outer layer. The modified polypropylene protection tube has the advantages of being simple in structure and high in compressive strength and being applicable to different environments.
Description
Technical field
The present invention relates to the protection tube technical field, especially relate to a kind of buried high voltage power cable modified polypropene protection tube.
Background technology
Non-digging type power cable tubing in the market has the tubing of two types of PE and M-PP; M-PP electric power tubing is compared with PE electric power tubing; because of the fusing point of M-PP material relatively high; the modulus of elasticity of material is larger; the antifriction coefficient is higher; therefore M-PP tubing has resistance to elevated temperatures preferably, relative PE is better for the product physical and mechanical property, can be suitable for the use of high pressure-temperature power cable protecting pipe material.The shortcomings such as therefore on market, applied high-tension electricity protection is modified polypropene (M-PP) tubing with tubing substantially, but also exists the hardness of tubing inadequate, and compression strength is not high.
Therefore, a kind of high rigidity that has occurs, anti-measuring body M-PP power cable protecting pipe is necessary.
Summary of the invention
The present invention is to provide a kind of high rigidity that has for solving the problems of the technologies described above, anti-measuring body M-PP power cable protecting pipe.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of buried high voltage power cable modified polypropene protection tube comprises the tubing body, it is characterized in that, described tubing is two-layer being co-extruded, and internal layer is the modified polypropene pipe, and skin is PA tube, also is provided with a fiberglass layer between described internal layer and skin.
Described internal layer weight ratio formula is M-PP resin 75～84%, M-PP dedicated modified materials 10～12%, PP color masterbatch 3%, other processing aids 1～10%; Described outer weight ratio formula is PP resin 75～85%, M-PP dedicated modified materials 8～10%, PP flexibilizer; 1～2%, PP color masterbatch 3%, other processing aids 1～10%.
The beneficial effect that the present invention has, simple in structure, have higher compression strength, can be applicable to different environment.
Description of drawings
Fig. 1 is the present invention: a kind of buried high voltage power cable structural representation of modified polypropene protection tube.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
With reference to shown in Figure 1, a kind of buried high voltage power cable modified polypropene protection tube comprises tubing 1 body, and tubing 1 is two-layer being co-extruded, and internal layer 2 is the modified polypropene pipe, and outer 3 is PA tube, also is provided with a fiberglass layer 4 between internal layer 2 and outer 3.
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a buried high voltage power cable modified polypropene protection tube, comprise the tubing body, it is characterized in that; described tubing is two-layer being co-extruded; internal layer is the modified polypropene pipe, and skin is PA tube, also is provided with a fiberglass layer between described internal layer and skin.
2. a kind of buried high voltage power cable modified polypropene protection tube according to claim 1, it is characterized in that, described internal layer weight ratio formula is MPP resin 75～84%, MPP dedicated modified materials 10～12%, PP color masterbatch 3%, other processing aids 1～10%; Described outer weight ratio formula is PP resin 75～85%, MPP dedicated modified materials 8～10%, PP flexibilizer; 1～2%, PP color masterbatch 3%, other processing aids 1～10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104330083A CN103178478A (en) | 2011-12-21 | 2011-12-21 | Modified polypropylene protection tube for buried high-voltage power cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104330083A CN103178478A (en) | 2011-12-21 | 2011-12-21 | Modified polypropylene protection tube for buried high-voltage power cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103178478A true CN103178478A (en) | 2013-06-26 |
Family
ID=48638167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104330083A Pending CN103178478A (en) | 2011-12-21 | 2011-12-21 | Modified polypropylene protection tube for buried high-voltage power cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103178478A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779823A (en) * | 2014-01-15 | 2014-05-07 | 常州市拓源电缆成套有限公司 | Protective sleeve of buried-type high-voltage power cable |
| CN103944132A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Modified polypropylene composite tubular product for protecting high-voltage cable |
| CN104535480A (en) * | 2014-11-26 | 2015-04-22 | 四川凯乐检测技术有限公司 | Oil pollution degree detection sensor provided with fluorine-containing epoxy resin coating layer |
| CN108000833A (en) * | 2017-11-03 | 2018-05-08 | 金华市华宇管业有限公司 | Height filling environmental protection MPP power pipe preparation processes |
| CN111907133A (en) * | 2020-08-08 | 2020-11-10 | 上海贝思特管业有限公司 | High-hardness friction-resistant three-layer co-extrusion MPP cable protection pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5423677A (en) * | 1977-07-22 | 1979-02-22 | Plas Tech Corp | Manufacture of fiber reinforced vinyl chloride resin pipe |
| CN200952611Y (en) * | 2006-09-05 | 2007-09-26 | 施经东 | Glass fiber stable PP R composite pipe |
| CN101967246A (en) * | 2010-10-20 | 2011-02-09 | 杭州联通管业有限公司 | Modified polypropylene pipe used for protecting high-voltage power cable |
-
2011
- 2011-12-21 CN CN2011104330083A patent/CN103178478A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5423677A (en) * | 1977-07-22 | 1979-02-22 | Plas Tech Corp | Manufacture of fiber reinforced vinyl chloride resin pipe |
| CN200952611Y (en) * | 2006-09-05 | 2007-09-26 | 施经东 | Glass fiber stable PP R composite pipe |
| CN101967246A (en) * | 2010-10-20 | 2011-02-09 | 杭州联通管业有限公司 | Modified polypropylene pipe used for protecting high-voltage power cable |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779823A (en) * | 2014-01-15 | 2014-05-07 | 常州市拓源电缆成套有限公司 | Protective sleeve of buried-type high-voltage power cable |
| CN103944132A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Modified polypropylene composite tubular product for protecting high-voltage cable |
| CN104535480A (en) * | 2014-11-26 | 2015-04-22 | 四川凯乐检测技术有限公司 | Oil pollution degree detection sensor provided with fluorine-containing epoxy resin coating layer |
| CN108000833A (en) * | 2017-11-03 | 2018-05-08 | 金华市华宇管业有限公司 | Height filling environmental protection MPP power pipe preparation processes |
| CN111907133A (en) * | 2020-08-08 | 2020-11-10 | 上海贝思特管业有限公司 | High-hardness friction-resistant three-layer co-extrusion MPP cable protection pipe |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |