CN219954528U - High-toughness steel wire skeleton polyethylene composite pipe - Google Patents
High-toughness steel wire skeleton polyethylene composite pipe Download PDFInfo
- Publication number
- CN219954528U CN219954528U CN202321485911.9U CN202321485911U CN219954528U CN 219954528 U CN219954528 U CN 219954528U CN 202321485911 U CN202321485911 U CN 202321485911U CN 219954528 U CN219954528 U CN 219954528U
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- steel wire
- composite pipe
- toughness
- polyethylene composite
- wire skeleton
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- 239000002131 composite material Substances 0.000 title claims abstract description 49
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 22
- -1 polyethylene Polymers 0.000 title claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 22
- 239000003365 glass fiber Substances 0.000 claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims abstract description 29
- 238000004804 winding Methods 0.000 claims description 17
- 229920001903 high density polyethylene Polymers 0.000 claims description 8
- 239000004700 high-density polyethylene Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 26
- 239000012790 adhesive layer Substances 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of hoses, and particularly relates to a high-toughness steel wire skeleton polyethylene composite pipe, which comprises an inner layer and an outer layer, wherein the steel wire skeleton is arranged between the inner layer and the outer layer, an adhesive layer for adhering the steel wire skeleton to the outer surface of the inner layer is also arranged between the inner layer and the outer layer, the steel wire skeleton is spirally wound into a net shape by a forward steel wire and a reverse steel wire, a gap which is not smaller than 1/10 of the nominal diameter is reserved between the steel wires which are spirally wound in the same direction, glass fibers are wound in the gap along the spiral direction of the gap, the width of the glass fibers is not more than 2/3 of the width of the gap, a blocking ring is coaxially sleeved on the outer side of the inner layer, and the blocking ring is positioned between the inner layer and the outer side. The utility model provides a high-toughness steel wire framework polyethylene composite pipe, which is used for keeping the long-term toughness of the steel wire framework polyethylene composite pipe.
Description
Technical Field
The utility model belongs to the technical field of hoses, and particularly relates to a high-toughness steel wire framework polyethylene composite pipe.
Background
The steel wire net skeleton (plastic) composite pipe is an improved novel steel skeleton plastic composite pipe, which is also called SRCP pipe. The pipeline uses high-strength plastic-steel wire mesh skeleton and thermoplastic polyethylene as raw materials, the wire winding net is used as skeleton reinforcement of polyethylene plastic pipe, high-density polyethylene (HDPE) is used as matrix, and high-performance HDPE modified binding resin is used to tightly connect the wire skeleton with the inner and outer layers of high-density polyethylene, so that the pipeline has excellent composite effect.
Because the high strength steel wire reinforcement is encased in the continuous thermoplastic, the composite tube overcomes the disadvantages of steel and plastic tubing, respectively, while maintaining the advantages of steel and plastic tubing, respectively. However, the composite pipe also ages with time, so that the composite pipe loses toughness, and the defect expressed on the composite pipe is that tiny cracks are generated on the pipe wall of the composite pipe, and under the action of the internal pressure of the pipe, the cracks can develop along the radial direction and the axial direction of the pipe wall of the composite pipe, at the moment, the composite pipe cannot be bent at a small angle any more, and the toughness of the composite pipe can be greatly reduced. Therefore, the existing steel wire framework polyethylene composite pipe structure is not beneficial to maintaining the long-term toughness of the steel wire framework polyethylene composite pipe.
Disclosure of Invention
The utility model aims to provide a high-toughness steel wire framework polyethylene composite pipe so as to maintain the long-term toughness of the steel wire framework polyethylene composite pipe.
In order to achieve the above purpose, the scheme of the utility model is as follows: the utility model provides a high toughness's steel wire skeleton polyethylene composite pipe, including inlayer and skin, steel wire skeleton sets up between inlayer and skin, still be equipped with the adhesive linkage that bonds steel wire skeleton on the inlayer surface between inlayer and the skin, steel wire skeleton is become netted by forward steel wire and reverse steel wire spiral winding, leave the clearance that is not less than nominal diameter 1/10 between the equidirectional winding steel wire, the spiral direction winding along the clearance has glass fiber in the clearance, glass fiber's width does not exceed the 2/3 of clearance width, the outside of inlayer still coaxially overlaps and is equipped with the baffle ring, the baffle ring is located between inlayer and the outside.
The working principle and the beneficial effects of the scheme are as follows:
1. the glass fiber is used for winding among the grids of the steel wire framework, and the holes among the grids are filled, so that the effect of preventing the radial development of cracks on the composite pipe in the ageing process of the whole steel wire framework is enhanced, and the long-term toughness of the composite pipe is maintained.
2. The blocking ring is sleeved on the outer side of the inner layer of the composite pipe to block cracks near the inner layer from developing along the axial direction of the composite pipe, so that the long-term toughness of the composite pipe is further facilitated to be maintained.
3. Theoretically, the smaller the mesh of the wire skeleton, the better the effect of preventing crack radial development, but too dense the wire mesh will result in a significant decrease in the bendable properties of the composite tube (i.e., inability to bend to small angles). The glass fiber is adopted to fill the grid gaps, so that the toughness can be increased, the high toughness of the composite pipe is further ensured, and the bending property of the composite pipe is greatly reduced due to the fact that grids of the steel wire framework are too dense.
4. The steel wire skeleton of steel wire skeleton polyethylene composite pipe is by two-layer steel wire (forward steel wire and reverse steel wire respectively) through two steel wire winding machine winding spiral shaping usually, on current production facility, only need slightly reform transform can realize the filling of glass fiber in the clearance, namely: and a circle of glass fiber rollers are additionally arranged between the steel wire rollers on the steel wire winding machine, so that the filling of glass fibers can be synchronously realized in the process of winding the steel wires. And then, in the process of continuous operation of the composite pipe production line through manual or automatic equipment, a blocking ring is sleeved on the outer side of the steel wire framework, so that the production efficiency is not reduced.
Optionally, the blocking ring is a metal ring, a fiberglass ring, or an HDPE ring.
Optionally, the distance between adjacent blocker rings is 1-5 times the nominal diameter.
Alternatively, when the blocker ring is fiberglass, the blocker ring is integrally formed with the fiberglass wound in the gap. When the glass fiber is wound, the glass fiber is wound in the gap by the aid of the whole glass fiber, and the glass fiber can be wound in a plurality of circles on the part of the composite pipe to form the blocking ring.
Optionally, the device further comprises a blocking pin, wherein one end of the blocking pin is inserted into a grid formed by a steel wire framework adjacent to the blocking ring. When the thickness of the blocking ring exceeds 5 times that of the glass fiber, the glass fiber is possibly deformed when the glass fiber leaves the blocking ring formed by winding and turns into a spiral direction, and the situation can be avoided by adopting the blocking pin.
Optionally, the stop pin further comprises a base, and the base is diamond-shaped or triangular. The base is clamped by one corner of the grid of the steel wire framework, so that the stop pin is fixed, and the stop pin is more stable on the composite pipe.
Drawings
FIG. 1 is a schematic structural view of a high-toughness steel wire skeleton polyethylene composite pipe according to an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of a high-toughness steel wire skeleton polyethylene composite pipe according to a second embodiment of the present utility model;
fig. 3 is an enlarged view at a in fig. 2.
Detailed Description
The following is a further detailed description of the embodiments:
the labels in the drawings of this specification include: an inner layer 1, an outer layer 2, an adhesive layer 3, a steel wire framework 4, glass fiber direct roving 5, a blocking ring 6, a base 7 and a stop pin 8.
Example 1
This embodiment is basically as shown in fig. 1: in the embodiment, the standard of the composite pipe adopts GB/T32439-2015, and the nominal diameter is 50mm. The composite pipe comprises an inner layer 1 and an outer layer 2, wherein a steel wire framework 4 is arranged between the inner layer 1 and the outer layer 2, an adhesive layer 3 for adhering the steel wire framework 4 to the outer surface of the inner layer 1 is further arranged between the inner layer 1 and the outer layer 2, and the adhesive layer 3 is HDPE modified resin. The wire skeleton 4 is formed by spirally winding a forward wire and a reverse wire into a net shape, the total number of the wires is 32, and 16 wires are respectively used for the forward wire and the reverse wire. The wires wound in the same direction are left with a gap of not less than 1/10 of the nominal diameter, in this embodiment about 10mm. Glass fibers are wound in the gaps of the outer layer 2 along the spiral direction of the gaps, the width of the glass fibers is not more than 2/3 of the width of the gaps, glass fibers are directly used as the glass fibers in the embodiment, the glass fibers are in a bundle shape, but have no fixed diameter, the glass fibers are flat after winding, specific models and manufacturers can select according to the size of the gaps and the breaking elongation of the composite tube, the width of a single bundle after winding is between 3mm and 6mm, and the thickness of the single bundle is between 0.5mm and 1 mm. The outer side of the inner layer 1 is also coaxially sleeved with a blocking ring 6, and the blocking ring 6 is positioned between the inner layer 1 and the outer side. In this embodiment, the blocking ring 6 is an HDPE modified resin ring, and the blocking ring 6 is integrally formed with the adhesive layer 3 by extrusion.
The glass fiber enhances the effect of the whole steel wire framework 4 on preventing radial development of cracks on the pipe in the ageing process of the composite pipe, and the blocking ring 6 blocks the cracks near the inner layer 1 from developing along the axial direction of the composite pipe. The high toughness of the composite pipe can be ensured, and the composite pipe can maintain long toughness and service life.
Example two
The present embodiment differs from the first embodiment in that: as shown in fig. 2 and 3, the difference from the first embodiment is that: the blocking ring 6 is formed by winding one bundle of glass fiber direct roving 5 which fills the gaps of the steel wire mesh skeleton in five circles at the same position. After five windings, the bundle of glass fibers directly without a roving 5 continues to fill the gap where it is located. When the glass fiber leaves the barrier ring 6 formed by winding and turns into a spiral direction, a triangular base 7 is placed in one grid closest to the barrier ring 6, two oblique sides of the base 7 are propped against the inner side of the grid, the bottom edge of the base 7 is flush with the barrier ring 6, a blocking pin 8 hole is formed in the base 7, the blocking pin 8 is inserted into the blocking pin 8 hole, and the glass fiber turns into the spiral direction after bypassing the blocking pin 8 through the barrier ring 6.
The blocking ring 6 is integrally prepared by a bundle of glass fibers filling the gaps of the steel wire mesh, and the preparation method is simple and has better toughness.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the present utility model. The description of the embodiments and the like in the specification can be used for explaining the contents of the claims.
Claims (6)
1. The utility model provides a high toughness's steel wire skeleton polyethylene composite pipe, includes inlayer and skin, and steel wire skeleton sets up between inlayer and skin, still is equipped with the adhesive linkage that bonds steel wire skeleton on the inlayer surface between inlayer and the skin, and steel wire skeleton is become netted by forward steel wire and reverse steel wire spiral winding, its characterized in that: a gap which is not smaller than 1/10 of the nominal diameter is reserved between the steel wires wound in the same direction, glass fibers are wound in the gap along the spiral direction of the gap, the width of the glass fibers is not more than 2/3 of the width of the gap, a blocking ring is coaxially sleeved on the outer side of the inner layer, and the blocking ring is located between the inner layer and the outer side.
2. The high-toughness steel wire skeleton polyethylene composite pipe of claim 1, wherein: the blocking ring is a metal ring, a glass fiber ring or an HDPE ring.
3. The high-toughness steel wire skeleton polyethylene composite pipe of claim 1, wherein: the distance between adjacent baffle rings is 1-5 times of the nominal diameter.
4. The high-toughness steel wire skeleton polyethylene composite pipe according to claim 2, wherein: when the blocking ring is made of glass fiber, the blocking ring and the glass fiber wound in the gap are integrally formed.
5. The high-toughness steel wire skeleton polyethylene composite pipe of claim 4, wherein: and the device also comprises a stop pin, wherein one end of the stop pin is inserted into a grid formed by the steel wire framework adjacent to the stop ring.
6. The high-toughness steel wire skeleton polyethylene composite pipe of claim 5, wherein: the stop pin also comprises a base which is diamond-shaped or triangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485911.9U CN219954528U (en) | 2023-06-12 | 2023-06-12 | High-toughness steel wire skeleton polyethylene composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485911.9U CN219954528U (en) | 2023-06-12 | 2023-06-12 | High-toughness steel wire skeleton polyethylene composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219954528U true CN219954528U (en) | 2023-11-03 |
Family
ID=88544762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321485911.9U Active CN219954528U (en) | 2023-06-12 | 2023-06-12 | High-toughness steel wire skeleton polyethylene composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219954528U (en) |
-
2023
- 2023-06-12 CN CN202321485911.9U patent/CN219954528U/en active Active
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