CN103711993A - Spiral steel-plastic compound pipe formed in buckling and pressing mode - Google Patents
Spiral steel-plastic compound pipe formed in buckling and pressing mode Download PDFInfo
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- CN103711993A CN103711993A CN201310747336.XA CN201310747336A CN103711993A CN 103711993 A CN103711993 A CN 103711993A CN 201310747336 A CN201310747336 A CN 201310747336A CN 103711993 A CN103711993 A CN 103711993A
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- reinforced layer
- composite pipe
- bucklet
- steel band
- turn
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
Abstract
The invention discloses a spiral steel-plastic compound pipe formed in a buckling and pressing mode. The spiral steel-plastic compound pipe formed in the buckling and pressing mode comprises a round inner pipe, a reinforcement steel belt and an outer pipe, wherein the reinforcement steel belt is arranged between the round inner pipe and the outer pipe and comprises a plurality of structure units with the shape of the section similar to a horizontal S, the adjacent structure units are meshed and bucked in pairs to form a whole reinforcement layer, an adhesive resin layer coats the surface layer of each structure unit, and each structure unit is connected with the round inner pipe and the outer pipe through the corresponding adhesive resin layer. The spiral steel-plastic compound pipe formed in the buckling and pressing mode is stable in structure, good in sealing performance, flexible, and capable of effectively improving the ring stiffness grade, widening the application range and effectively increasing the inner pressure bearing capacity. In addition, the spiral steel-plastic compound pipe formed in the buckling and pressing mode has the advantages of being smooth in inner wall, resistant to abrasion and corrosion, not prone to aging and the like.
Description
Technical field
The present invention relates to the molded steel-plastic composite pipe of a kind of turn-bucklet, belong to ventilation, supplying drainage design field.
Background technique
Spiral duct is mainly used in the circulation of air between UNICOM two places, plays ventilated effect.Spiral duct mainly contains at present: zinc-coated spiral airduct, stainless steel spiral duct, it is mainly used in cleaning system and sends airduct, central air-conditioning ventilation duct, industrial supply and exhaust ventilation duct, environment friendly system suction airduct, mining drainage gas pipe etc. back to.The existing spiral duct of being made by cold-rolled steel coils has overcome original inorganic glass-fiber reinforced plastic poor toughness, fragility is large, yielding, the shortcoming such as damp suction surface halide accumulation, poor water resistance, and the shortcoming such as seamless steel pipe weight is large, installation difficulty is high, poor water resistance, corrosion-resistant, wall unevenness are even.
Existing spiral duct is by cold-rolled steel coils, stainless steel, with it, to be enclosed to connect on one side with another corresponding sides screw occlusion to form.But because chemical reaction easily occurs iron sheet under some environment, cause burn into get rusty, and zinc changes hardly in dry air, as in malaria, zinc surface can generate fine and close basic zinc carbonate film.Therefore zinc-coated spiral airduct is mainly on airduct iron sheet, to plate one deck zinc, iron sheet is played to the effect of protection.But above-mentioned zinc-plated operation is comparatively complicated loaded down with trivial details, as occurred, iron sheet, in the careless mistake of zinc-plated operation, easily causes the quality problems of ventilation duct.
Due to spiral duct, be applied in the special dimensions such as industry, down-hole gas sucking releasing, to its tightness, require very high, as relate to the field of Embedment and installation, and the ring stiffness of tubing is required more strictly, otherwise be prone under pressure externally the problem that causes tube wall deformation, breaks and come off.
Secondly, for waste pipe field, mainly take steel band reinforced polyethylene spiral ripple pipe at present as main, but when DN >=1000mm, the ring stiffness of tubing reduces very large, and to guarantee that it has higher ring stiffness and just must reach designing requirement by increasing the base materials such as polythene material, thickness of strips, simultaneously the cost of tubing also strengthens thereupon, and along with the increase of thickness of strips specification, steel band turns to moulding process also to increase difficulty thereupon;
Further, because steel band reinforced polyethylene spiral ripple pipe is applied in drainage works, what mainly bear is the pressure that bring outside, therefore, concerning manufacturer, the ring stiffness requirement to tubing in tubing design is comparatively strict, and has often ignored the design that pressure is born in tubing inside, cannot, in the breakthrough of acquisition of technology aspect pressure piping, therefore also limit the application of steel band reinforced polyethylene spiral ripple pipe.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of tubing to there is flexibility and the molded steel-plastic composite pipe of smooth smooth, corrosion resistant turn-bucklet.
For achieving the above object, the present invention is achieved by the following technical solutions:
The molded steel-plastic composite pipe of a kind of turn-bucklet, comprise circular inner tube, strengthen steel band and outer tube, described reinforcement steel band is arranged between circular inner and outer tubes, it is characterized in that, described reinforcement steel band comprises that a plurality of sectional shapes are the element of construction of similar " ∽ " shape, between adjacent element of construction by between two mutually interlock snapping form whole reinforced layer, and the top layer of described element of construction is also coated with adhering resin layer, described element of construction is connected with described circular inner and outer tubes by adhering resin layer, has strengthened bonding strength and sealing.
Further, the middle part of described element of construction is formed with at least one projection, and described protruding cross section is triangle, rectangle, trapezoidal, circular arc, " U " shape or parabola shaped of falling.
And the outer wall longitudinal section of described outer tube be shaped as a plane or consistent with the upper surface sectional shape of described reinforcement steel band, and the inwall longitudinal section of described outer tube is a plane or consistent with the upper surface sectional shape of described reinforcement steel band, and the upper surface portion of the inwall of described outer tube and reinforcement steel band or completely bonding, when the inwall longitudinal section of described outer tube is a plane, it is connected with the most significant end of strengthening steel band, and when the upper surface sectional shape of the inwall longitudinal section of described outer tube and described reinforcement steel band is consistent, the inwall of described outer tube completely contacts and is connected with the upper surface of strengthening steel band.
Further, inwall longitudinal section and the outer wall longitudinal section of described inner tube are a plane, and are also provided with packing in the space forming between the outer wall of described circular inner tube and reinforcement steel band, further strengthen anti-interior the pressure and external pressure ability of composite pipe.
In addition, can also in described circular inner tube, be provided with reinforced layer, described reinforced layer is along the circumferential direction spiral winding of circular inner tube, and described reinforced layer is connected with described circular inner tube by bonding several resin layers.
Can certainly in described outer tube, be provided with reinforced layer, described reinforced layer is along the circumferential direction spiral winding of outer tube, and described reinforced layer is connected with described outer tube by adhering resin layer.
Or in described circular inner and outer tubes, be provided with reinforced layer, and respectively along the circumferential direction spiral winding of circular inner and outer tubes, and described reinforced layer is connected with described circular inner and outer tubes by adhering resin layer.
Further, described reinforced layer is thread reinforced layer or banded reinforced layer, wherein, described thread reinforced layer is wire, metallic cable, fiber tuft or textile rope, described banded reinforced layer is fiber band or strengthens cloth, wherein, the mode of the spiral winding of described fiber band or enhancing cloth is stacked winding.In addition, a number of described reinforced layer spiral winding is single head or bull, and is that single rotation direction is wound around or double rotational directions is wound around.
Further, the material of described reinforcement steel band is metal or alloy.
The invention has the beneficial effects as follows: the present invention is by being designed to reinforcement steel band similar " ∽ " shape, and be connected and fixed by the mode of interlock snapping, make the structure of composite pipe of the present invention more firm, and there is bending properties and flexibility, and be also coated with adhering resin layer owing to strengthening the outside of steel band, make to strengthen steel band and be connected with the hot melt of circular inner and outer tubes by adhering resin layer, not only increased the fastness and the intensity that connect, and increased sealability.And by the middle part of strengthening steel band is designed to convex shape, and described protruding sectional shape is triangle, rectangle, trapezoidal, circular arc, " U " shape of falling, and described projection is at least one, said structure is the ring stiffness grade of reinforced composite pipe effectively, thereby make described composite pipe, in practice, will be more extensive.In addition, by set up reinforced layer in circular inner tube, outer tube, then improved the ring stiffness grade of composite pipe, thereby also increased the interior bearing capacity of composite pipe, the present invention also possess inner wall smooth, wear-resistant, corrosion-resistant, be difficult for the advantages such as aging.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is the structural representation of reinforcement steel band element of construction of the present invention;
Fig. 3 is another structural representation of reinforcement steel band element of construction of the present invention;
Fig. 4 is the structural representation one of outer tube of the present invention;
Fig. 5 is the structural representation two of outer tube of the present invention;
Fig. 6 is the structural representation of inner tube of the present invention;
Fig. 7 arranges the structural representation of reinforced layer in circular inner tube of the present invention;
Fig. 8 arranges the structural representation of reinforced layer in outer tube of the present invention;
Fig. 9 is provided with the structural representation of reinforced layer in circular inner and outer tubes of the present invention.
In figure, main reference character implication is:
1, circular inner tube 2, outer tube 3, reinforcement steel band
4, element of construction 41, projection 5, adhering resin layer
6, reinforced layer 7, packing.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is carried out to concrete introduction.
Fig. 1 is the structural representation of one embodiment of the invention.
As shown in Figure 1: the molded steel-plastic composite pipe of turn-bucklet, comprise circular inner tube 1, strengthen steel band 3 and outer tube 2, described reinforcement steel band 3 is arranged between circular inner tube 1 and outer tube 2, described reinforcement steel band 3 comprises that a plurality of sectional shapes are the element of construction 4 of similar " ∽ " shape, between adjacent element of construction 4 by between two mutually interlock snapping form whole reinforced layer, this kind of occlusion structure, strengthened the stable degree of structural entity, and there is flexibility and bending properties, in addition, in the present embodiment, the material of described reinforcement steel band 3 is metal, be specially steel, certainly can also be other materials, as zinc-plated or copper-plated steel, aluminium etc., can be conducive to antirust.
Fig. 2 is the structural representation of reinforcement steel band element of construction of the present invention.
As shown in Figure 2: the top layer of described element of construction 4 is also coated with adhering resin layer 5, described element of construction 4 is when being connected with outer tube 2 with circular inner tube 1, by being fixedly connected with outer tube 2 with circular inner tube 1 after adhering resin layer 5 hot melt, bonding strength and sealability have been strengthened.
Fig. 3 is another structural representation of reinforcement steel band element of construction of the present invention.
As shown in Figure 3: the middle part of described element of construction 4 is formed with projection 41, in the present embodiment, described projection 41 is one, certainly described projection 41 also can be for a plurality of, in addition, the cross section of described projection 41 is triangle, rectangle, trapezoidal, circular arc, " U " shape or parabola shaped of falling, and in the present embodiment, described projection 41 is circular arc.
Fig. 4 is the structural representation one of outer tube of the present invention.
As shown in Figure 4: the outer wall vertical sectional shape of described outer tube 2 is a plane, and now, the inwall longitudinal section of described outer tube 2 is also a plane, it is connected with the most significant end of strengthening steel band 3, in the present embodiment, owing to strengthening the most significant end of steel band 3, at least comprise a plane, therefore, the inwall of outer tube 2 is realized face with reinforcement steel band 3 and is contacted.
Fig. 5 is the structural representation two of outer tube of the present invention.
As shown in Figure 5: described outer tube 2 outer wall vertical sectional shapes are consistent with the upper surface sectional shape of described reinforcement steel band, the longitudinal section of its inwall can be also a plane, when being plane, it is connected with the most significant end of strengthening steel band 3, and the most significant end of described reinforcement steel band 3 at least comprises a plane, therefore, the inwall of outer tube 2 with strengthen steel band 3 and realize face and contact.And in the present embodiment, the longitudinal section of the inwall of described outer tube 2 is consistent with the upper surface sectional shape of described reinforcement steel band 3, now, the inwall of described outer tube 2 completely contacts and is connected with the upper surface of strengthening steel band 3.
Fig. 6 is the structural representation of inner tube of the present invention.
As shown in Figure 6: in the space forming between the outer wall of described inner tube 1 and reinforcement steel band 3, be also provided with packing 7, can further strengthen anti-interior the pressure and external pressure ability of composite pipe.
Fig. 7 arranges the structural representation of reinforced layer in circular inner tube of the present invention.
As shown in Figure 7: in described circular inner tube 1, be provided with reinforced layer 6, described reinforced layer 6 is along the circumferential direction spiral winding of circular inner tube 1, and described reinforced layer 6 is connected with described circular inner tube 1 by bonding several resin layers 5.
Fig. 8 arranges the structural representation of reinforced layer in outer tube of the present invention.
As shown in Figure 8: in outer tube 2, be provided with reinforced layer, described reinforced layer 6 is along the circumferential direction spiral winding of outer tube, and described reinforced layer 6 is connected with described outer tube 2 by adhering resin layer 5.
Fig. 9 is provided with the structural representation of reinforced layer in circular inner and outer tubes of the present invention.
As shown in Figure 9: in circular inner tube 1 and outer tube 2, be provided with reinforced layer 6, and respectively along the circumferential direction spiral winding of circular inner tube 1 and outer tube 2, and described reinforced layer 6 is connected with outer tube 2 with described circular inner tube 1 by adhering resin layer, this kind of set-up mode, in anti-, pressure energy power is stronger, and ring stiffness rank is higher.
In the present embodiment, described reinforced layer 6 is thread reinforced layer, and be steel wire, and be that single head list rotation direction is wound around, certainly, described reinforced layer 6 can be also other wires, metallic cable, fiber tuft or textile rope, also can be banded reinforced layer, banded reinforced layer can or strengthen cloth for fiber band.Wherein, when being thread reinforced layer, its cross section is circular, flat or other are irregularly shaped.When being banded reinforced layer, the mode of its spiral winding can be stacked winding.In addition, a number of spiral winding can be also bull, and certainly, the rotation direction of winding also can be wound around for double rotational directions.Winding angle can carry out accommodation according to the usability of tubing.
The present invention is by being designed to reinforcement steel band 3 similar " ∽ " shape, and be connected and fixed by the mode of interlock snapping, make the structure of composite pipe of the present invention more firm, and there is bending properties and flexibility, and be also coated with adhering resin layer 5 owing to strengthening the top layer of steel band 3, making to strengthen steel band 3 can be connected with the hot melt of circular inner and outer tubes by adhering resin layer 5, the fastness and the intensity that connect have not only been increased, and increased sealability, prevented from strengthening that steel band 3 is corroded, distortion etc.And by the middle part of strengthening steel band 3 is designed to protruding 41 shapes, and the sectional shape of described projection 41 is triangle, rectangle, trapezoidal, circular arc, " U " shape or parabola shaped of falling, and described projection 41 is at least one, said structure is the ring stiffness grade of reinforced composite pipe effectively, thereby make described composite pipe, in practice, will be more extensive.In addition, by set up reinforced layer in circular inner tube 1, outer tube 2, then improved the ring stiffness grade of composite pipe, thereby also increased the interior bearing capacity of composite pipe, in addition, the material of circular inner tube 1 and outer tube 2 is plastics, thus this composite pipe also possess inner wall smooth, wear-resistant, corrosion-resistant, be difficult for the advantages such as aging.
The present invention is illustrated and should be appreciated that above-described embodiment does not limit the present invention in any form according to above-described embodiment, and all employings are equal to replaces or technological scheme that equivalent transformation mode obtains, within all dropping on protection scope of the present invention.
Claims (10)
1. the molded steel-plastic composite pipe of turn-bucklet, comprise circular inner tube, strengthen steel band and outer tube, described reinforcement steel band is arranged between circular inner and outer tubes, it is characterized in that, described reinforcement steel band comprises that a plurality of sectional shapes are the element of construction of similar " ∽ " shape, between adjacent element of construction by between two mutually interlock snapping form whole reinforced layer, and the top layer of described element of construction is also coated with adhering resin layer, described element of construction is connected with described circular inner and outer tubes by adhering resin layer.
2. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 1, it is characterized in that, the middle part of described element of construction is formed with at least one projection, and described protruding cross section is triangle, rectangle, trapezoidal, circular arc, " U " shape or parabola shaped of falling.
3. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 1, it is characterized in that, the outer wall longitudinal section of described outer tube is a plane or consistent with the sectional shape of the upper surface of described reinforcement steel band, and the inwall longitudinal section of described outer tube is a plane or consistent with the upper surface sectional shape of described reinforcement steel band, and the inwall of described outer tube with strengthen the upper surface portion of steel band or completely bonding.
4. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 3, it is characterized in that, inwall longitudinal section and the outer wall longitudinal section of described inner tube are a plane, and are also provided with packing in the space forming between the outer wall of described circular inner tube and reinforcement steel band.
5. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 1, it is characterized in that, in described circular inner tube, be also provided with reinforced layer, described reinforced layer is along the circumferential direction spiral winding of circular inner tube, and described reinforced layer is connected with described circular inner tube by bonding several resin layers.
6. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 1 or 5, it is characterized in that, in described outer tube, be provided with reinforced layer, described reinforced layer is along the circumferential direction spiral winding of outer tube, and described reinforced layer is connected with described outer tube by adhering resin layer.
7. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 6, it is characterized in that, described reinforced layer is thread reinforced layer or banded reinforced layer, wherein, described thread reinforced layer is wire, metallic cable, fiber tuft or textile rope, and described banded reinforced layer is fiber band or strengthens cloth.
8. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 7, is characterized in that, the mode of described banded reinforced layer spiral winding is stacked winding.
9. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 6, is characterized in that, a number of described reinforced layer spiral winding is single head or bull, and is that single rotation direction is wound around or double rotational directions is wound around.
10. the molded steel-plastic composite pipe of a kind of turn-bucklet according to claim 1, is characterized in that, the material of described reinforcement steel band is metal or alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747336.XA CN103711993B (en) | 2013-12-31 | 2013-12-31 | A kind of molded steel-plastics composite pipe of screw-button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747336.XA CN103711993B (en) | 2013-12-31 | 2013-12-31 | A kind of molded steel-plastics composite pipe of screw-button |
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| Publication Number | Publication Date |
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| CN103711993A true CN103711993A (en) | 2014-04-09 |
| CN103711993B CN103711993B (en) | 2016-08-17 |
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| CN201310747336.XA Active CN103711993B (en) | 2013-12-31 | 2013-12-31 | A kind of molded steel-plastics composite pipe of screw-button |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870922A (en) * | 2017-04-09 | 2017-06-20 | 贵州枫叶管业有限公司 | A kind of HDPE hollow wall plastic-steel windings |
| CN109458502A (en) * | 2018-12-27 | 2019-03-12 | 宁波安浮新能源科技有限公司 | A kind of super-pressure flexible hose |
| CN110566757A (en) * | 2019-09-30 | 2019-12-13 | 佛山环葆嘉智能装备有限公司 | Composite pipe and method for producing the same |
| CN112693759A (en) * | 2020-12-15 | 2021-04-23 | 洛阳恒基石化科技有限公司 | Flexible drain pipe of oil tank and production process of steel sleeve of flexible drain pipe |
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| CN112693759A (en) * | 2020-12-15 | 2021-04-23 | 洛阳恒基石化科技有限公司 | Flexible drain pipe of oil tank and production process of steel sleeve of flexible drain pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103711993B (en) | 2016-08-17 |
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