CN203671062U - Multi-layer winding composite pipe - Google Patents

Multi-layer winding composite pipe Download PDF

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Publication number
CN203671062U
CN203671062U CN201320885405.9U CN201320885405U CN203671062U CN 203671062 U CN203671062 U CN 203671062U CN 201320885405 U CN201320885405 U CN 201320885405U CN 203671062 U CN203671062 U CN 203671062U
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China
Prior art keywords
enhancement layer
winding
layer
pipe
circular
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CN201320885405.9U
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Chinese (zh)
Inventor
陆宇航
黎世鹏
刘海峰
王海峰
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JIANGSU SHUANGTENG PIPE CO Ltd
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JIANGSU SHUANGTENG PIPE CO Ltd
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Abstract

The utility model discloses a multi-layer winding composite pipe which comprises a round lining pipe, at least three reinforcing layers and a round wrapping pipe. The reinforced layers are arranged between the round lining pipe and the round wrapping pipe. The multi-layer winding composite pipe is characterized by comprising at least one winding layer with a winding angle alpha and at least two winding layers which are wound in a crossed mode to be a net-shaped structure and form a winding angle beta. Alpha is larger than or equal to 80 degrees but smaller than 90 degrees and beta is larger than or equal to 30 degrees but smaller than or equal to 65 degrees. According to the multi-layer winding composite pipe, the annular pressure and partial lengthwise pressure bearing capacity of a novel pipe is improved, meanwhile, the annular rigidity grade of the novel pipe is improved. The lengthwise pressure and partial annular pressure bearing capacity of the novel pipe can be improved. In addition, the multi-layer winding composite pipe has the advantages of being little in conveying medium resistance, resistant to corrosion, strong in flexibility, capable of being bent and the like.

Description

A kind of multi-lay winding composite pipe
Technical field
The utility model relates to a kind of plastic composite pipe, especially relates to a kind of multi-lay winding composite pipe, belongs to plastic composite pipe design field.
Background technique
The exploitation of plastic tube and applying the time that has decades, the plurality of advantages such as plastic tube is corrosion-resistant, wear-resistant with it, wholesomeness, circulation are good, energy-conserving and environment-protective have obtained using widely.In recent years the improvement of plastic tube performance and structure has been obtained people in the industry's attention, a large amount of composite metal plastic pipes continue to bring out, wherein steel wire mesh frame plastic (polyethylene) composite pipe typical case the most.
Fig. 1 is the structural representation of existing steel wire mesh frame plastic composite tube; Fig. 2 is the steel wire arranging distribution map of enhancement layer in Fig. 1.
As depicted in figs. 1 and 2: steel wire mesh frame plastic (polyethylene) composite pipe comprises circular inner liner pipe 1, enhancement layer 3 and circular overclad tubes 2 at present, wherein, described enhancement layer 3(refers generally to as steel wire) comprise outer enhancement layer 3.1 and internal layer enhancement layer 3.2, wherein, two kinds of the welding of the Placement of internal layer enhancement layer 3.2 and outer enhancement layer 3.1 employing longitude and latitude and left and right cross windings.Because the expected design of steel wire mesh frame plastic composite tube compressive strength is that 60%-80% is born by enhancement layer structure, therefore enhancement layer reliability of structure and stability will determine the withstand voltage reliability and stability of composite pipe.And two kinds of steel wire mesh frame plastic composite tubes of application more or less exist some defects and deficiency in enhancing structure at present.It is more reasonable that the welded steel wire mesh frame plastic composite tube of steel wire longitude and latitude strengthens structure, but because steel wire longitude and latitude welding procedure makes to have numerous soldering point in its whole enhancement layer structure, the weld strength of soldering point directly affects the intensity of enhancement layer.Often soldering point rosin joint or solder skip will cause the global failure of whole composite pipe, and rosin joint or solder skip in actual production process is inevitable, and therefore product exists defect.And the composite pipe of the steel wire form of the enhancement layer of employing left and right cross winding, steel wire in each spiral winding layer is to be all wound around in the mode of identical pitch, the network that reticular structure in the overall steel silk screen enhancement layer structure forming after being wound around is a kind of symmetry, around steel wire is all far away for its grid element center distance, therefore for improving the intensity of steel wire enhancement layer structure, just need to strengthen in a large number steel wire quantity and be wound around density.Steel wire winding can be subject to the stress of winding steel wire itself and the impact of the extrusion pressure of resin layer compound tense die head simultaneously, steel wire winding is arranged local inhomogeneous, causes intensity of steel wire performance insufficient.In addition, steel wire mesh frame plastic composite tube, in the time doing high pressure, is to adopt the steel wire quantity, diameter and the winding angle that increase enhancement layer to realize, and has so not only increased cost of production and has also strengthened producting process difficulty.Steel wire mesh frame plastic composite tube material is owing to there being enhancement layer, and it is thin that its wall ratio is moulded pipe with pressure rating pure, and in the time of bore dn >=315, ring stiffness intensity is less than the pure pipe of moulding.These have all limited the application of steel wire mesh frame plastic composite tube material greatly.
Model utility content
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of tubing to have advantages of inner wall smooth, corrosion-resistant, flexible, environmental protection, and holds interior pressure, the much higher layer of external pressure coiled composite tube.
For achieving the above object, the utility model is to realize by following technological scheme:
A kind of multi-lay winding composite pipe, comprise circular inner liner pipe, enhancement layer and circular overclad tubes, described enhancement layer is arranged between circular inner liner pipe and circular overclad tubes, and described enhancement layer is at least provided with three layers, it is characterized in that, comprise the winding layer that at least one deck winding angle is α, and at least two-layer winding angle is β and forms cancellated winding layer for cross winding, wherein, 90 ° of 80 °≤α <, 30 °≤β≤65 °.
Further, the top layer of described enhancement layer is all coated with adhering resin layer, and described enhancement layer is connected with described circular inner liner pipe and circular overclad tubes by after adhering resin layer hot melt.
And a number of every layer of enhancement layer spiral winding is single head or bull.
In addition, described enhancement layer is at least one in thread or banded enhancement layer.
Wherein, described thread enhancement layer is wire, metallic cable, fiber tuft or textile rope.
And the cross section of described metallic cable, fiber tuft or textile rope is circle or flat.
And described banded enhancement layer is fiber band or strengthens cloth.And the spiral winding mode of described banded enhancement layer is stack winding.
In addition, described circular inner liner pipe and circular overclad tubes material are plastics.
The beneficial effects of the utility model are: the utility model by setting up enhancement layer between circular inner liner pipe and circular overclad tubes, and enhancement layer adopts at least three layers of winding, be wound around comprising wide-angle, also comprise that small angle is wound around, the ability that the former mainly improves novel tube and holds circumferential pressure and part longitudinal pressure; Latter is mainly to improve novel tube to hold longitudinal pressure and part circumferential pressure, and wide-angle is wound around and small angle is wound around the ring stiffness grade that has also simultaneously improved novel tube.In addition, be an entirety by adhering resin layer circular inner liner pipe, enhancement layer, circular overclad tubes three hot melt adhesive, therefore make the utility model also possess the advantage that pressure-bearing is high, ring stiffness is high in possessing the advantages such as fed sheet of a media resistance is little, corrosion-resistant, flexibility is strong, flexible.
Brief description of the drawings
Fig. 1 is the structural representation of existing steel wire mesh frame plastic composite tube;
Fig. 2 is the steel wire arranging distribution map of enhancement layer in Fig. 1;
Fig. 3 is the utility model one embodiment's structural representation;
Fig. 4 is another embodiment's of the utility model structural representation;
Fig. 5 is the partial structurtes schematic diagram of the enhancement layer in the B district of Fig. 4.
In figure, main reference character implication is:
1, circular inner liner pipe 2, circular overclad tubes 3, enhancement layer
3.1, enhancement layer in the middle of outer enhancement layer 3.2 internal layer enhancement layers 3.3
4, adhering resin layer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is carried out to concrete introduction.
Fig. 3 is the utility model one embodiment's structural representation.
As shown in Figure 3: multi-lay winding composite pipe, comprise circular inner liner pipe 1, enhancement layer 3 and circular overclad tubes 2, described enhancement layer 3 is arranged between circular inner liner pipe 1 and circular overclad tubes 2, described circular inner liner pipe and circular overclad tubes material are plastics, wherein, described enhancement layer 3 is provided with three layers, and material is thread steel wire, comprises outer enhancement layer 3.1, internal layer enhancement layer 3.2 and middle enhancement layer 3.3.And in the present embodiment, the winding angle α of internal layer enhancement layer 3.2 is that wide-angle is wound around, be that winding angle is 90 ° of 80 °≤α <, it mainly shares circumferential pressure and a part of longitudinal pressure of novel tube, also can strengthen novel tube ring stiffness grade simultaneously, and the winding angle of outer enhancement layer 3.1 and middle enhancement layer 3.3 is β, and 30 °≤β≤65 °, but winding direction is contrary, this two-layer enhancement layer is mainly shared longitudinal pressure and a part of circumferential pressure of novel tube.
In the present embodiment, the diameter of internal layer enhancement layer 3.2 is greater than the diameter of outer enhancement layer 3.1 and middle enhancement layer 3.3, certainly, the diameter of internal layer enhancement layer 3.2 also can be less than or equal to the diameter of outer enhancement layer 3.1 and middle enhancement layer 3.3, and outer enhancement layer 3.1 and middle enhancement layer 3.3 can be selected the steel wire of specification of the same race.And in the present embodiment, a number of three layers of described enhancement layer spiral winding is single head, certainly, it also can be wound around for bull.
We know, as enhancement layer, it can be thread banded or thread and banded combination, in the time being thread enhancement layer, it can be wire, metallic cable, fiber tuft or textile rope, and the cross section of described wire, metallic cable, fiber tuft or textile rope is circle or flat.And in the time being banded enhancement layer, can being fiber band or strengthening cloth, and the canoe of banded enhancement layer be wound around for stack.
Fig. 4 is another embodiment's of the utility model structural representation.
As shown in Figure 4: described multi-lay winding composite pipe is identical with the above embodiments general structure, difference is: described internal layer enhancement layer 3.2 is fiber band, certainly, it also can be for strengthening cloth, in addition, 3.1 of middle enhancement layer 3.3 and outer enhancement layers are steel wire, certainly, except the disclosed concrete structure of the present embodiment, it can be also other wire, metallic cable, fiber tuft or textile rope etc.And in the present embodiment, internal layer enhancement layer 3.2 is wound around and is superimposed upon on the outer wall of circular inner liner pipe 1 along circular inner liner pipe 1 circumferencial direction with wide-angle, be that winding angle is α, and 90 ° of 80 °≤α <, it mainly shares circumferential pressure and a part of longitudinal pressure of novel tube, also can strengthen novel tube ring stiffness grade simultaneously, middle enhancement layer 3.3 and outer enhancement layer 3.1 are wound around with small angle, wherein, the winding angle of outer enhancement layer 3.1 and middle enhancement layer 3.3 is β, and 30 °≤β≤65 °, but winding direction is contrary, this two-layer enhancement layer is mainly shared longitudinal pressure and a part of circumferential pressure of novel tube.
The top layer of described enhancement layer is all coated with adhering resin layer 4, and described enhancement layer is connected with described circular inner liner pipe 1 and circular overclad tubes 2 after by adhering resin layer 4 hot melt, is specially:
Fig. 5 is the partial structurtes schematic diagram of the enhancement layer in the B district of Fig. 4.
As shown in Figure 5: described internal layer enhancement layer 3.2 comprises thread fiber 3.2.1 and adhering resin layer 4, thereby form banded fiber band, and described internal layer enhancement layer 3.2 is connected after by adhering resin layer 4 hot melt with described circular inner liner pipe 1 and circular overclad tubes 2.In addition, the size of enhancement layer 3 described in the utility model can be adjusted according to production technology.
The utility model by setting up enhancement layer 3 between circular inner liner pipe 1 and circular overclad tubes 2, and enhancement layer 3 adopts at least three layers of winding, be wound around comprising wide-angle, also comprise that small angle is wound around, the ability that the former mainly improves novel tube and holds circumferential pressure and part longitudinal pressure, latter is mainly to improve novel tube to hold longitudinal pressure and part circumferential pressure, and has strengthened the ring stiffness grade of novel tube simultaneously.In addition, be an entirety by adhering resin layer 4 circular inner liner pipe 1, enhancement layer 3, circular overclad tubes 2 three's hot melt adhesives, therefore make the utility model also possess the advantage that pressure-bearing is high, ring stiffness is high in possessing the advantages such as fed sheet of a media resistance is little, corrosion-resistant, flexibility is strong, flexible.
And the utility model is illustrated according to above-described embodiment and should be appreciated that above-described embodiment does not limit the utility model in any form, all employings are equal to replaces or technological scheme that equivalent transformation mode obtains, within all dropping on protection domain of the present utility model.

Claims (9)

1. a multi-lay winding composite pipe, comprise circular inner liner pipe, enhancement layer and circular overclad tubes, described enhancement layer is arranged between circular inner liner pipe and circular overclad tubes, and described enhancement layer is at least provided with three layers, it is characterized in that, comprise the winding layer that at least one deck winding angle is α, and at least two-layer winding angle is β and forms cancellated winding layer for cross winding, wherein, 90 ° of 80 °≤α <, 30 °≤β≤65 °.
2. a kind of multi-lay winding composite pipe according to claim 1, is characterized in that, the top layer of described enhancement layer is all coated with adhering resin layer, and described enhancement layer is connected with described circular inner liner pipe and circular overclad tubes by after adhering resin layer hot melt.
3. a kind of multi-lay winding composite pipe according to claim 1, is characterized in that, a number of every layer of enhancement layer spiral winding is single head or bull.
4. according to a kind of multi-lay winding composite pipe described in claim 1-3 any one, it is characterized in that, described enhancement layer is at least one in thread or banded enhancement layer.
5. a kind of multi-lay winding composite pipe according to claim 4, is characterized in that, described thread enhancement layer is wire, metallic cable, fiber tuft or textile rope.
6. a kind of multi-lay winding composite pipe according to claim 5, is characterized in that, the cross section of described wire, metallic cable, fiber tuft, textile rope is circle or flat.
7. a kind of multi-lay winding composite pipe according to claim 4, is characterized in that, described banded enhancement layer is fiber band or strengthens cloth.
8. a kind of multi-lay winding composite pipe according to claim 7, is characterized in that, the spiral winding mode of described banded enhancement layer is stack winding.
9. a kind of multi-lay winding composite pipe according to claim 1, is characterized in that, described circular inner liner pipe and circular overclad tubes material are plastics.
CN201320885405.9U 2013-12-31 2013-12-31 Multi-layer winding composite pipe Active CN203671062U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320885405.9U CN203671062U (en) 2013-12-31 2013-12-31 Multi-layer winding composite pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320885405.9U CN203671062U (en) 2013-12-31 2013-12-31 Multi-layer winding composite pipe

Publications (1)

Publication Number Publication Date
CN203671062U true CN203671062U (en) 2014-06-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103712000A (en) * 2013-12-31 2014-04-09 陆宇航 Multi-layer wound composite tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103712000A (en) * 2013-12-31 2014-04-09 陆宇航 Multi-layer wound composite tube

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