CN102478130A - High-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure - Google Patents
High-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure Download PDFInfo
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- CN102478130A CN102478130A CN2010105613812A CN201010561381A CN102478130A CN 102478130 A CN102478130 A CN 102478130A CN 2010105613812 A CN2010105613812 A CN 2010105613812A CN 201010561381 A CN201010561381 A CN 201010561381A CN 102478130 A CN102478130 A CN 102478130A
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Abstract
The invention discloses a high-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure, and belongs to the technical field of pipeline connection components. The high-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure comprises a substrate pipe, at least one reinforcing layer and an outer wall, wherein the at least one reinforcing layer is arranged between the substrate pipe and the outer wall; the substrate pipe and the reinforcing layer are adhered into a whole by special modified polyolefin adhesive or special epoxy resin adhesive in a heating and pressurizing manner and the reinforcing layer and the outer wall are also adhered into a whole by special modified polyolefin adhesive or special epoxy resin adhesive in a heating and pressurizing manner; the reinforcing layer is a metal reinforcing layer or a fiber reinforcing layer; an angle of 50-60 degrees is formed between the reinforcing layer and the axial center line of the pipe; the reinforcing layer is of a steel wire bidirectional cross winding structure and is composed of a right spiral winding layer and a left spiral winding layer; the steel wires are spring steel wires with diameter of 0.6-1.5 mm, and the minimum winding clearance of the steel wires is 0.5 mm; the substrate pipe is prepared from ultrahigh-molecular-weight polyethylene with molecular weight of 1500000-5000000 units; and the outer wall is prepared from modified high-density polyethylene. The high-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure disclosed by the invention has a reasonable structural design, and has long service life and is applicable to an occasion with special requirements.
Description
Technical field
The present invention relates to a kind of polyvinyl piping materials, relate to a kind of high pressure-bearing ultra-high molecular weight polyethylene specifically and strengthen compound tubing structure, be mainly used in the pipeline installation that specific (special) requirements such as wear-resisting, corrosion-resistant, shock resistance, frictional resistance yarn number are little, bearing capacity height are used down.
Background technique
In the existing technology, the steel pipe voltage endurance capability is strong, but corrosion-resistant, abrasive resistance is poor.Steel-plastic composite pipe is compound with PE and steel to be main, and major defect is that bearing capacity is relatively poor, and its Applicable scope still is confined to bury ground low pressure water pipe.PE compares with ultra-high molecular weight polyethylene, and ultra-high molecular weight polyethylene has irreplaceable superiority at aspects such as impact strength, resistance to low temperature, tensile strength, wear resistance, anti-ESC, antifatigue, self-lubricating property, good antiscale property, resistances to chemical attack.
The composite pipe of making lining of steel wire has multiple structure, and a kind of is the composite pipe that interlayer has the layer of metal mesh grid between pipe material inner wall and the outer wall; Scribble the composite pipe of adhesive layer between another kind of one deck winding steel wire layer at least and plastic core pipe and the plastic outer layer; Its impact strength of above structural tube, tensile strength, wear resistance, anti-environmental cracking and anti-fatigue performance are all lower, and its bearing capacity can only reach 2.5MPa.In the prior art, also having with polyethylene or silane crosslinked polyethylene is the composite pipe inwall, and this kind composite pipe inwall intensity is not high, due to the reasons such as canoe of steel wire, in installing and using, cracking phenomena occurs in addition.As to adopt glass fibre reinforced plastics be outer wall, and the cracking resistance of this composite pipe outer wall is poor, fragility is big, very easily ftractures or peel off, and the steel wire of exposure is corroded very soon, causes pipe leakage.
In view of above situation; Research and develop and a kind ofly can adapt to open-air various complex-terrain and environmental conditions, shock resistance, high pressure-bearing ultra-high molecular weight polyethylene corrosion-resistant, in light weight, that quantity delivered big, dismounting is flexible strengthen composite pipe and have very positive economic implications.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing tubing project organization, " a kind of high pressure-bearing ultra-high molecular weight polyethylene strengthens compound tubing structure " is provided.This pipe structure has reasonable in design, wear-corrosion resistance is strong, bearing capacity is high, shock resistance, frictional resistance yarn number are little, energy-saving and cost-reducing advantage, is a kind of being applicable to
Under the specific (special) requirements, the high pressure-bearing ultra-high molecular weight polyethylene of long service life strengthens compound tubing structure.
To achieve these goals, the present invention realizes through following technological scheme: a kind of high pressure-bearing ultra-high molecular weight polyethylene strengthens compound tubing structure, includes basal body pipe, enhancement layer, outer wall.Said enhancement layer is provided with one deck at least, places between basal body pipe and the outer wall, is adopting special-purpose polyolefin glue of modification or bonding being integral of special epoxy resin glue heating and pressurizing between basal body pipe and the enhancement layer, between enhancement layer and the outer wall.
Said enhancement layer is set to metal enhancement layer or fiber-reinforced layer.
Said metal enhancement layer becomes 50 with the tubing shaft axis
0-60
0Angle is the bidirectional crossed winding structure of steel wire, is made up of right-hand screw winding layer and left hand screw winding layer, and said steel wire is a Spring Steel Wire, and steel wire diameter is the 0.6-1.5 millimeter, and it is 0.5 mm that its steel wire twines the gap minimum.
Said fiber-reinforced layer becomes 50 with the tubing shaft axis
0-60
0Angle is the bidirectional crossed winding structure of fiber, is made up of right-hand screw winding layer and left hand screw winding layer, and said fiber is that fiber linear density is 1200-4800tex, rubberised layer thickness 0.2mm-0.5 mm through the fiber of coating special epoxy resin glue.
Its used material of said fiber-reinforced layer is a kind of in superhigh molecular weight polyethylene fibers, glass fibre, aramid fibre, polyster fibre, the nylon fibre.
Said glass fibre is an E type high-strength alkali-free glass fibre.
Its used material of said basal body pipe is that molecular weight is the ultra-high molecular weight polyethylene of 1,500,000-5,000,000 units.
Its used material of said outer wall is a modification high-density polyethylene.
The present invention compares with existing compound tubing structure has following advantage:
1. the present invention has reasonable in design, wear-corrosion resistance is strong, bearing capacity is high, anti-
The advantage that impact, frictional resistance yarn number is little, in light weight, removes and installs conveniently, saves energy and reduce the cost is a kind of being applicable under the specific (special) requirements, and the high pressure-bearing ultra-high molecular weight polyethylene of long service life strengthens compound tubing structure.
2. because of the used material of basal body pipe is that molecular weight is the polyethylene of 1,500,000-5,000,000 units, the used material of outer pipe wall is a modification high-density polyethylene.This tubing is not only fire-retardant, antistatic, and antiultraviolet and shock resistance, wear-corrosion resistance are strong, its inner wall smooth, non-scaling, and loss of head is lower by 30% than steel pipe, and impact strength can reach 100KJ/m
2, be more than 5 times of common high density polyethylene pipe.The frictional resistance yarn number that flows is little, significantly improves the fed sheet of a media velocity of liquid assets, reaches the purpose of saving the energy.
3. be steel wire or the bidirectional crossed winding structure of E type high-strength alkali-free glass fibre because of between basal body pipe, outer wall, being provided with; By the reinforced structure layer that right-hand screw winding layer and left hand screw winding layer are formed, adopt special-purpose polyolefin glue of modification or special epoxy resin glue heating and pressurizing bonding, basal body pipe, outer wall, enhancement layer are combined together; Form stable mechanical structure; The interface, slit can not occur, therefore resisting environmental stress and cracking has eliminated erosion of pipe internal pressure or Korrosionsmedium or damage; Effectively improve Corrosion Protection and pressure rating, be applicable to-41
0-46
0Temperature environment under work, pipe workpiece quality and operational safety are improved greatly, its life-span can be for decades;
4. become 50 because of enhancement layer with the tubing shaft axis
0-60
0Angle is bidirectional crossed winding structure, and it twines the gap minimum is 0.5 mm, thereby has improved the winding of single layer radical, has further strengthened the composite pipe bearing capacity, makes it possess high bearing capacity.On the one hand effectively improved the tubing hoop, made hoop and the axial strength state that tends to balance on the other hand, effectively improved the tubing bearing strength, its working pressure can reach more than the 6MPa.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present invention.
Fig. 2 is the cross section structure schematic representation of Fig. 1.
Among the figure: 1. basal body pipe, 2. enhancement layer, 3. outer wall.
Embodiment
Through non-limiting example, further set forth the present invention below, understand the present invention.
According to size, the material of selecting to confirm enhancement layer, winding gap and the number of plies of user's request and institute's Environmental Conditions design caliber, can design and manufacture its bearing capacity is the various model tubing more than 5 MPa to tens MPa.
The present invention such as Fig. 1, shown in Figure 2; This structure includes basal body pipe, metal enhancement layer, outer wall; The metal enhancement layer is provided with one deck, places between basal body pipe and the outer wall, is adopting special-purpose polyolefin glue caking to be integral between basal body pipe and the metal enhancement layer, between metal enhancement layer and the outer wall.
The metal enhancement layer places between basal body pipe and the outer wall, becomes 58 with the tubing shaft axis
0Angle is the bidirectional crossed winding structure of steel wire, is made up of right-hand screw winding layer and left hand screw winding layer, and said steel wire is a Spring Steel Wire, and steel wire diameter is 1 millimeter, and right-hand screw winding layer and left hand screw winding layer respectively are provided with one deck.
The used material of said basal body pipe is that molecular weight is the polyethylene of 2,500,000 units.
Its used material of outer wall is a modification high-density polyethylene.
For example will manufacture and design the tubing that nominal pressure is 6-8MPa: 145 millimeters of calibers, metal enhancement layer are one deck, 1 millimeter of steel wire diameter, and it is 0.7 millimeter that steel wire twines the gap, 2 millimeters of outer wall thickness.
Its pipe structure of the present invention is identical with embodiment 1; Different is that the used material of enhancement layer is the E type high-strength alkali-free glass fibre of tensile strength greater than 1800MPa, is adopting special epoxy resin glue caking to be integral between basal body pipe and the fiber-reinforced layer, between fiber-reinforced layer and the outer wall.
Fiber reinforcement is placed between basal body pipe and the outer wall, becomes 58 with the tubing shaft axis
0Angle; Be the bidirectional crossed winding structure of fiber, be made up of right-hand screw winding layer and left hand screw winding layer, said fiber is through applying the glass fibre of epoxy resin glue; Fiber diameter is 1.1 millimeters; Fiber linear density is 2400tex, rubberised layer thickness 0.2mm, and right-hand screw winding layer and left hand screw winding layer respectively are provided with one deck.
Tubing is by the special device manufacturing, produces the core pipe earlier, and is further compound to the recombination line.
In sum; The present invention has reasonable in design, wear-corrosion resistance is strong, bearing capacity is high, shock resistance, frictional resistance yarn number are little, in light weight, remove and install conveniently, energy-saving and cost-reducing advantage; Be a kind of various open-air complex-terrains and environmental conditions of being applicable to; Be applicable under the specific (special) requirements that the high pressure-bearing ultra-high molecular weight polyethylene of long service life strengthens compound tubing structure.
Claims (8)
1. one kind high pressure-bearing ultra-high molecular weight polyethylene strengthens compound tubing structure; It is characterized in that; Include basal body pipe (1), enhancement layer (2), outer wall (3); Said enhancement layer (2) is provided with one deck at least, places between basal body pipe (1) and the outer wall (3), is adopting special-purpose polyolefin glue of modification or bonding being integral of special epoxy resin glue heating and pressurizing between basal body pipe (1) and the enhancement layer (2), between enhancement layer (2) and the outer wall (3).
2. a kind of high pressure-bearing ultra-high molecular weight polyethylene according to claim 1 strengthens compound tubing structure, it is characterized in that said enhancement layer (2) is set to metal enhancement layer or fiber-reinforced layer.
3. a kind of high pressure-bearing ultra-high molecular weight polyethylene according to claim 2 strengthens compound tubing structure, it is characterized in that said metal enhancement layer becomes 50 with the tubing shaft axis
0-60
0Angle is the bidirectional crossed winding structure of steel wire, is made up of right-hand screw winding layer and left hand screw winding layer, and said steel wire is a Spring Steel Wire, and steel wire diameter is the 0.6-1.5 millimeter, and it is 0.5 mm that its steel wire twines the gap minimum.
4. a kind of high pressure-bearing ultra-high molecular weight polyethylene according to claim 2 strengthens compound tubing structure and it is characterized in that said fiber-reinforced layer becomes 50 with the tubing shaft axis
0-60
0Angle is the bidirectional crossed winding structure of fiber, is made up of right-hand screw winding layer and left hand screw winding layer, and said fiber is that fiber linear density is 1200-4800tex, rubberised layer thickness 0.2mm-0.5 mm through the fiber of coating special epoxy resin glue.
5. a kind of high pressure-bearing ultra-high molecular weight polyethylene according to claim 4 strengthens compound tubing structure; It is characterized in that its used material of said fiber-reinforced layer is a kind of in superhigh molecular weight polyethylene fibers, glass fibre, aramid fibre, polyster fibre, the nylon fibre.
6. a kind of high pressure-bearing ultra-high molecular weight polyethylene according to claim 4 strengthens compound tubing structure, it is characterized in that said glass fibre is an E type high-strength alkali-free glass fibre.
7. a kind of high pressure-bearing ultra-high molecular weight polyethylene according to claim 1 strengthens compound tubing structure, it is characterized in that its used material of said basal body pipe (1) is that molecular weight is the ultra-high molecular weight polyethylene of 1,500,000-5,000,000 units.
8. a kind of high pressure-bearing ultra-high molecular weight polyethylene according to claim 1 strengthens compound tubing structure, it is characterized in that its used material of said outer wall (3) is a modification high-density polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105613812A CN102478130A (en) | 2010-11-27 | 2010-11-27 | High-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure |
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| CN2010105613812A CN102478130A (en) | 2010-11-27 | 2010-11-27 | High-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure |
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| CN102478130A true CN102478130A (en) | 2012-05-30 |
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| CN2010105613812A Pending CN102478130A (en) | 2010-11-27 | 2010-11-27 | High-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943935A (en) * | 2012-11-21 | 2013-02-27 | 长春高祥特种管道有限公司 | Epoxy resin impregnation glass fiber tape continuous enhancing composite tube and preparation method thereof |
| CN103206580A (en) * | 2013-04-08 | 2013-07-17 | 青岛中科昊泰新材料科技有限公司 | Ultrahigh molecular-weight polyethylene composite tubing and production method thereof |
| CN103574187A (en) * | 2013-10-21 | 2014-02-12 | 王庆昭 | Flexible ultra-high molecular weight polyethylene composite tube as well as preparation method and production system thereof |
| CN103672193A (en) * | 2013-11-01 | 2014-03-26 | 安徽邦尼新材料有限公司 | Novel reinforced corrugated pipe |
| CN110466179A (en) * | 2019-07-08 | 2019-11-19 | 浙江伟星新型建材股份有限公司 | A kind of preparation method of ant-scaling enhancing thermoplastic composite tube |
| CN112944056A (en) * | 2021-02-22 | 2021-06-11 | 临海伟星新型建材有限公司 | Multifunctional polyethylene composite pipe for conveying liquid food and preparation method thereof |
-
2010
- 2010-11-27 CN CN2010105613812A patent/CN102478130A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943935A (en) * | 2012-11-21 | 2013-02-27 | 长春高祥特种管道有限公司 | Epoxy resin impregnation glass fiber tape continuous enhancing composite tube and preparation method thereof |
| CN102943935B (en) * | 2012-11-21 | 2016-10-05 | 长春高祥特种管道有限公司 | A kind of epoxy resin impregnation glass fiber tape continuous enhancing composite tube and preparation method |
| CN103206580A (en) * | 2013-04-08 | 2013-07-17 | 青岛中科昊泰新材料科技有限公司 | Ultrahigh molecular-weight polyethylene composite tubing and production method thereof |
| CN103574187A (en) * | 2013-10-21 | 2014-02-12 | 王庆昭 | Flexible ultra-high molecular weight polyethylene composite tube as well as preparation method and production system thereof |
| CN103672193A (en) * | 2013-11-01 | 2014-03-26 | 安徽邦尼新材料有限公司 | Novel reinforced corrugated pipe |
| CN110466179A (en) * | 2019-07-08 | 2019-11-19 | 浙江伟星新型建材股份有限公司 | A kind of preparation method of ant-scaling enhancing thermoplastic composite tube |
| CN112944056A (en) * | 2021-02-22 | 2021-06-11 | 临海伟星新型建材有限公司 | Multifunctional polyethylene composite pipe for conveying liquid food and preparation method thereof |
| WO2022174535A1 (en) * | 2021-02-22 | 2022-08-25 | 临海伟星新型建材有限公司 | Multi-functional polyethylene composite pipe for liquid food delivery and manufacturing method |
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Application publication date: 20120530 |