CN104065005A - Connecting structure and manufacturing method of composite polypropylene GHFB square high-voltage cable - Google Patents
Connecting structure and manufacturing method of composite polypropylene GHFB square high-voltage cable Download PDFInfo
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- CN104065005A CN104065005A CN201410263745.7A CN201410263745A CN104065005A CN 104065005 A CN104065005 A CN 104065005A CN 201410263745 A CN201410263745 A CN 201410263745A CN 104065005 A CN104065005 A CN 104065005A
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Abstract
The invention relates to the technical field of power cable production, in particular to a connecting structure and a manufacturing method of a composite polypropylene GHFB square high-voltage cable. According to the technical scheme, pipe material bodies are included, the inner wall and the outer wall of each pipe material body are both in a corrugated shape, the two pipe material bodies are connected through a sealing ring and a clamping hoop, one end of each of the two pipe material bodies is connected into the sealing ring, the clamping hoop is arranged on the outer layer of the sealing ring in a sleeved mode, and the width of the clamping hoop is at least the width of the wave crests of three ripples of the pipe material bodies. The connecting structure has the advantages of being good in insulation performance and good in connecting sealing performance, great low-temperature shock resistance is achieved, meanwhile, materials are the lightest in all ground burying pipe materials, and conveying cost and mounting type hoisting cost can be greatly lowered.
Description
Technical field
The present invention relates to power cable production technical field, be specifically related to draw bail and the manufacture method of the square high-tension cable of a kind of composite polypropylene GHFB.
Background technology
Non-excavating power cable protection tube application trenchless technology, need not dredge, cuts the earth and destroy road surface in a large number, completes at road, railway, building, inferior ranks location, riverbed tubing, cable.Compared with traditional " exploratory trench pipe laying "; more adapt to current environmental requirement; remove that tradition construction causes stir up a cloud of dust, the factor that disturbs residents such as traffic jam; can also solve at some and cannot implement to excavate scene of operations pipeline installation; as protection zone, historic site, business district, crops and protection zone, farmland, highway, river etc., be widely used in the pipe engineerings such as municipal administration, telecommunications, electric power coal gas, running water, heating power.Power cable protecting pipe in the sale of domestic production at present mainly comprises rigid polyvinyl chloride (PVC-U) tubing and high density polyethylene (HDPE) (HDPE) tubing; but the heat resistance of these two kinds of tubing is poor, the highest 80 degree that also can only reach of serviceability temperature.
Summary of the invention
Object of the present invention, for having solved above-mentioned existing technical disadvantages, provides draw bail of the square high-tension cable of composite polypropylene GHFB and preparation method thereof.
For achieving the above object, object one of the present invention is to provide a kind of composite polypropylene GHFB draw bail of square high voltage power cable, comprise tubing body, described tubing body inside and outside wall is all corrugated, between described two tubing bodies, adopt sealing ring and clamp connection, sealing ring is all accessed in one end of described two tubing bodies, and described clip is placed on sealing ring skin, and this clip width is at least the wave peak width of three ripples of tubing body.
Concrete, described tubing body length is 6300mm, described tubing body internal diameter is 175mm.
Object two of the present invention is to provide the square high voltage power cable manufacture method of a kind of composite polypropylene GHFB, it adopts raw material is composite strengthening polypropylene, described composite strengthening polypropylene is taking rectorite powder as raw material, by forming with modified polypropylene resin melt blending, then generate composite strengthening polypropylene by prilling.
Concrete, described prilling is evenly transported to many pair roller type extruding grain-making machine charging apertures with material level automatic constant function forced feed machine in parallel by the material of rectorite powder and modified polypropylene resin melt blending through upstream charging gear and feed pipe, enter in the forced feed machine hopper of forced feed machine through material level automatic constant fixed tube, under the built-in spiral propeller effect of forced feed machine, enter pair roller type extruding grain-making machine, become the grain products of reservation shape with the demoulding through extruding, and enter the lower operation of broken whole grain; Along with the decline of material level in forced feed machine hopper, utilize the characteristic of solid powder one direction transmission of pressure, material in feed pipe constantly supplements and enters forced feed machine hopper, under the effect of material level automatic constant, make material level in forced feed machine hopper remain constant and all the time in optimum Working, thereby ensure the stable performance of pair roller type extruding and pelletizing plant.
The present invention has following beneficial effect:
1, the main material of GHFB power pipe (MPP single-wall corrugated pipe) is modified polypropene (MPP), there are good insulation property, at higher temperature, still can keep good critical external compressive resistance ability, be suitable as the protecting pipe of high-voltage electric power circuit simultaneously.
2, GHFB power pipe (MPP single-wall corrugated pipe) has stronger stretch-proof, and critical external compressive resistance and better flexility connect and adopt clip to be tightly connected, convenient and reliable.
3, GHFB power pipe (MPP single-wall corrugated pipe) has good low-temperature impact resistance, and in south China area, the most times in 1 year can construct.
4, GHFB power pipe (MPP single-wall corrugated pipe) is lightweight, and density is only 0.9-0.92g/cm3, is the lightest material in current all buried tubing, can greatly reduce freight and mounted lifting cost and use; , waiting under loading condiction, GHFB power pipe (MPP single-wall corrugated pipe) only needs a thinner tube wall just can meet the demands meanwhile, will save 40-70% Master Cost compared with the MPP solid wall pipe of same specification ring stiffness requirement; Compare comprehensive cost with PVC double-wall corrugated pipe with RPM and remain basically stable, but performance is more superior.Construction connects the socket of employing pipe thread or hot melt welding, substantially there is no maintenance of works expense.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is cross-sectional view of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, object one of the present invention is to provide a kind of composite polypropylene GHFB draw bail of square high-tension cable, comprise tubing body 1, described tubing body 1 inside and outside wall is all corrugated, between described two tubing bodies 1, adopt sealing ring 3 and clip 2 to connect, sealing ring 3 is all accessed in one end of described two tubing bodies 1, and described clip 2 is placed on sealing ring 3 skins, and this clip width is at least the wave peak width of three ripples of tubing body.
Concrete, described tubing body length is 6300mm, described tubing body internal diameter is 175mm.
Object two of the present invention is to provide the square high voltage power cable manufacture method of a kind of composite polypropylene GHFB, it adopts raw material is composite strengthening polypropylene, described composite strengthening polypropylene is taking rectorite powder as raw material, by forming with modified polypropylene resin melt blending, then generate composite strengthening polypropylene by prilling.
Concrete, described prilling is evenly transported to many pair roller type extruding grain-making machine charging apertures with material level automatic constant function forced feed machine in parallel by the material of rectorite powder and modified polypropylene resin melt blending through upstream charging gear and feed pipe, enter in the forced feed machine hopper of forced feed machine through material level automatic constant fixed tube, under the built-in spiral propeller effect of forced feed machine, enter pair roller type extruding grain-making machine, become the grain products of reservation shape with the demoulding through extruding, and enter the lower operation of broken whole grain; Along with the decline of material level in forced feed machine hopper, utilize the characteristic of solid powder one direction transmission of pressure, material in feed pipe constantly supplements and enters forced feed machine hopper, under the effect of material level automatic constant, make material level in forced feed machine hopper remain constant and all the time in optimum Working, thereby ensure the stable performance of pair roller type extruding and pelletizing plant.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. the draw bail of the square high-tension cable of composite polypropylene GHFB, it is characterized in that: comprise tubing body, described tubing body inside and outside wall is all corrugated, between described two tubing bodies, adopt sealing ring and clamp connection, sealing ring is all accessed in one end of described two tubing bodies, described clip is placed on sealing ring skin, and this clip width is at least the wave peak width of three ripples of tubing body.
2. the draw bail of the square high voltage power cable of composite polypropylene GHFB according to claim 1, is characterized in that: described tubing body length is 6300mm, and described tubing body internal diameter is 175mm.
3. the square high voltage power cable manufacture method of composite polypropylene GHFB, it is characterized in that: it adopts raw material is composite strengthening polypropylene, described composite strengthening polypropylene is taking rectorite powder as raw material, by forming with modified polypropylene resin melt blending, then generate composite strengthening polypropylene by prilling.
4. the square high voltage power cable manufacture method of composite polypropylene GHFB according to claim 3, it is characterized in that: described prilling is evenly transported to many pair roller type extruding grain-making machine charging apertures with material level automatic constant function forced feed machine in parallel by the material of rectorite powder and modified polypropylene resin melt blending through upstream charging gear and feed pipe, enter in the forced feed machine hopper of forced feed machine through material level automatic constant fixed tube, under the built-in spiral propeller effect of forced feed machine, enter pair roller type extruding grain-making machine, become the grain products of reservation shape with the demoulding through extruding, and enter the lower operation of broken whole grain, along with the decline of material level in forced feed machine hopper, utilize the characteristic of solid powder one direction transmission of pressure, material in feed pipe constantly supplements and enters forced feed machine hopper, under the effect of material level automatic constant, make material level in forced feed machine hopper remain constant and all the time in optimum Working, thereby ensure the stable performance of pair roller type extruding and pelletizing plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263745.7A CN104065005A (en) | 2014-06-14 | 2014-06-14 | Connecting structure and manufacturing method of composite polypropylene GHFB square high-voltage cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263745.7A CN104065005A (en) | 2014-06-14 | 2014-06-14 | Connecting structure and manufacturing method of composite polypropylene GHFB square high-voltage cable |
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| CN104065005A true CN104065005A (en) | 2014-09-24 |
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| CN201410263745.7A Pending CN104065005A (en) | 2014-06-14 | 2014-06-14 | Connecting structure and manufacturing method of composite polypropylene GHFB square high-voltage cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532598A (en) * | 2017-01-18 | 2017-03-22 | 广德亚捷实业有限公司 | Metal insulating corrugated connecting pipe |
| CN112398076A (en) * | 2020-12-10 | 2021-02-23 | 广东安恒塑业有限公司 | Buried high-strength pressure-resistant power cable protection sleeve and protection sleeve assembly thereof |
Citations (6)
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|---|---|---|---|---|
| DE2321315A1 (en) * | 1973-04-27 | 1975-03-13 | Rasmussen Gmbh | Axial pipe union collar with rubber sleeve - is screw tightened and has ribs for engagement of butting ends of corrugated pipes |
| CN1142434A (en) * | 1995-02-14 | 1997-02-12 | 金尾千鹤子 | Synthetic resin corrugated pipe having concave-convex surface |
| KR200377139Y1 (en) * | 2004-12-03 | 2005-03-11 | 한승희 | Socket assembly structure having corrugated portion to prevent escape of socket body from double walled pipe |
| CN101549269A (en) * | 2009-05-11 | 2009-10-07 | 南京三普造粒装备有限公司 | Double-roller type extruding and granulation device and granulation process flow thereof |
| CN102130432A (en) * | 2010-01-20 | 2011-07-20 | 福建和盛塑业有限公司 | Buried high-voltage power cable enhanced corrugated (high frequency bandwidth, HFB) sleeve |
| CN104638594A (en) * | 2013-11-06 | 2015-05-20 | 天津市汇亚管业有限公司 | Buried enhanced and modified polypropylene ripple cable sleeve |
-
2014
- 2014-06-14 CN CN201410263745.7A patent/CN104065005A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2321315A1 (en) * | 1973-04-27 | 1975-03-13 | Rasmussen Gmbh | Axial pipe union collar with rubber sleeve - is screw tightened and has ribs for engagement of butting ends of corrugated pipes |
| CN1142434A (en) * | 1995-02-14 | 1997-02-12 | 金尾千鹤子 | Synthetic resin corrugated pipe having concave-convex surface |
| KR200377139Y1 (en) * | 2004-12-03 | 2005-03-11 | 한승희 | Socket assembly structure having corrugated portion to prevent escape of socket body from double walled pipe |
| CN101549269A (en) * | 2009-05-11 | 2009-10-07 | 南京三普造粒装备有限公司 | Double-roller type extruding and granulation device and granulation process flow thereof |
| CN102130432A (en) * | 2010-01-20 | 2011-07-20 | 福建和盛塑业有限公司 | Buried high-voltage power cable enhanced corrugated (high frequency bandwidth, HFB) sleeve |
| CN104638594A (en) * | 2013-11-06 | 2015-05-20 | 天津市汇亚管业有限公司 | Buried enhanced and modified polypropylene ripple cable sleeve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532598A (en) * | 2017-01-18 | 2017-03-22 | 广德亚捷实业有限公司 | Metal insulating corrugated connecting pipe |
| CN112398076A (en) * | 2020-12-10 | 2021-02-23 | 广东安恒塑业有限公司 | Buried high-strength pressure-resistant power cable protection sleeve and protection sleeve assembly thereof |
| CN112398076B (en) * | 2020-12-10 | 2022-12-30 | 广东安恒塑业有限公司 | Buried high-strength pressure-resistant power cable protection sleeve and protection sleeve assembly thereof |
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Application publication date: 20140924 |
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