CN107842652B - Double-flat-wall plastic steel winding pipe - Google Patents
Double-flat-wall plastic steel winding pipe Download PDFInfo
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- CN107842652B CN107842652B CN201610856157.3A CN201610856157A CN107842652B CN 107842652 B CN107842652 B CN 107842652B CN 201610856157 A CN201610856157 A CN 201610856157A CN 107842652 B CN107842652 B CN 107842652B
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- steel
- plastic
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- pipe
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 74
- 239000010959 steel Substances 0.000 title claims abstract description 74
- 229920003023 plastic Polymers 0.000 title claims abstract description 62
- 239000004033 plastic Substances 0.000 title claims abstract description 62
- 238000004804 winding Methods 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 240000009087 Crescentia cujete Species 0.000 claims 1
- 235000005983 Crescentia cujete Nutrition 0.000 claims 1
- 235000009797 Lagenaria vulgaris Nutrition 0.000 claims 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005336 cracking Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Images
Classifications
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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
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/07—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of multiple interengaging protrusions on the surfaces, e.g. hooks, coils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a double-flat-wall plastic steel winding pipe, which is formed by jointly winding a double-buckle plastic plate belt and a vertical steel belt, wherein both sides of the double-buckle plastic plate belt are provided with male and female buckles, and the steel belt is vertically inlaid in a cavity formed by buckling the plastic plate belt; the invention perfectly combines the steel strip into the winding pipe, fully plays the role of high elastic modulus of the steel, ensures that the ring stiffness of the pipeline is higher, ensures that the steel strip in a closed state cannot be corroded, solves the cracking problem caused by different linear expansion coefficients of the steel and the plastic, has simple and easy production process, can be produced on site, reduces the manufacturing cost and the transportation cost of the pipeline, becomes a new generation large-caliber plastic steel composite pipeline, has larger price advantage and quality advantage compared with other plastic drainage pipelines with the same strength, has high cost performance, and can greatly reduce the engineering cost.
Description
Technical Field
The invention relates to a conveying pipeline, in particular to a double-flat-wall plastic steel winding pipe which has high strength and large caliber and can be produced on site.
Background
In the existing technology of PVC-U rigid polyvinyl chloride winding pipe, the ring stiffness is up to 8KN/m 2 The wall thickness of the pipeline can be increased only by compounding two layers and three layers, so that the strength requirement of the pipeline can be met, the rice weight is large, and the cost is high; in the existing plastic steel winding pipe technology, the elastic modulus of the composite material is greatly improved by organically combining the steel belt and the plastic, the ring stiffness of the pipe is increased, and the pipe becomes a new development direction of the structural wall pipe, so that various plastic steel composite pipes are produced.
The problem that the steel band reinforced polyethylene spiral corrugated pipe exists is that equipment consists of a plurality of extruders and a steel band forming machine, the process is complex, the equipment cost is high, the equipment can only be produced in a workshop, the outer wall is of a corrugated structure, the trough is not supported by the steel band and is easy to crack and damage, and the problem of heat expansion and cold contraction of the steel band and the plastic can not be properly solved due to the adhesion between the steel band and the plastic, so that the pipe wall is cracked, and a great number of engineering quality problems are caused.
The steel belt reinforced polyethylene double-flat-wall spiral winding tube plate strips are welded, the welding strength is not easy to ensure, the steel belt is laid in a large cavity and is not easy to seal, and once water enters, the whole steel belt is corroded, and the bearing capacity is lost.
The plastic steel winding pipe with external V-shaped or U-shaped steel ribs is characterized in that the steel ribs are in split composite with the plastic strips, the steel ribs are arranged outside the pipe body, the steel ribs are easy to corrode, the steel ribs are easy to separate from the plastic strips, and the safety of the pipe is threatened.
Patent CN 102200205B discloses "U-PVC steel strip windingTube and method for its production, in which technique the steel strip is
The steel strip is positioned in a larger cavity and is sealed by another cover plate, so that the problems of sealing and corrosion resistance of the steel strip cannot be well solved, once the whole steel strip is corroded due to water inflow of the cavity, the bearing capacity is lost, the fixing of the steel strip is greatly influenced by the strength of the upper cover plate, the outer wall of the pipe is easy to bulge, and in the preparation method of the steel strip, the pipe wound into the pipe is also required to be subjected to heat treatment.
In the existing plastic steel winding pipe technology, most of plastic strips are polyethylene, the molding quality and the material hardness are inferior to those of hard polyvinyl chloride, so that the connection between the strips can only adopt a fusion polyethylene material welding mode, the connection mode of embedding male and female lock catches is not easy to implement, and the on-site production condition is inferior to that of the hard polyvinyl chloride.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the double-flat-wall plastic steel winding pipe, which can solve the problems of fixing and corrosion resistance of a pipe body structure and a steel belt, solve the problems of strength and field production of a large-caliber pipeline, enable the pipeline to be processed and produced more simply, enable the pipeline to have strong integrity, high ring rigidity, save materials and reduce cost.
The double-flat-wall plastic steel winding pipe is a single-layer and double-layer pipeline with a structural wall, which is formed by spirally winding double-buckle plastic plate strips and steel strips with male and female buckles on two sides. The double-buckle plastic plate strip with male and female buckles on two sides is a strip-shaped special-shaped strip continuously produced by an extrusion process, the cross section of the strip-shaped special-shaped strip is hollow, square holes and inner ribs are of an I-shaped structure, a thicker plate is provided with a middle-divided transverse connecting rib, a thin-wall plate is provided with a non-middle-divided transverse connecting rib, one end of the inner wall of the plate is provided with a female buckle embedded downwards, the other end of the plate is provided with an elongated lap joint surface, the inner side of the lap joint surface is provided with a bulge for fixing a steel strip, the end part of the lap joint surface is provided with a male buckle facing the outer wall, the root part of the male buckle is rectangular, the top of the male buckle is provided with an upper-tip lower-arc-shaped or hemispherical or triangular or gourd-shaped bulge, the male buckle and the female buckle are mutually anastomoses, and play roles in lapping and sealing the inner wall of a pipe during pipe making; the outer wall of the plate is provided with a male locking structure and a female locking structure which correspond to the inner wall and have opposite directions, and the lap joint and the sealing effect on the outer wall of the pipe are achieved when the pipe is manufactured; the effective width b value of the double-buckle plastic plate belt buckle is larger than the plate belt width a value between the two side walls of the plate belt, after the plate belt is spirally wound and buckled, the vertical steel belt is inlaid in a cavity formed by the lap joint of the plate belt, and the center distance of the male lock buckle and the female lock buckle is equal to the effective width of the plate belt.
A double-buckle plastic plate belt is continuously spirally wound by a winding machine, and a formed plastic structure pipe body, namely a double-flat-wall plastic pipe, is added with a vertical steel belt to form the double-flat-wall plastic steel winding pipe.
When producing double-layer pipeline, adopt this patent inventor to disclose CN 2835756 technique, by two double-buckle plastics slab band and two steel strips twine simultaneously and make, every layer of pipe wall has all inlayed vertical steel band in the overlap joint cavity, and the slab band becomes an organic wholely through the gluing agent bonding, has solved the ring rigidity problem of heavy-calibre pipeline.
In the field production, a disc-shaped or shaft-shaped double-buckle plastic plate strip, a disc-shaped steel strip and a tube which are hundreds of meters or thousands of meters long are transported to a construction site by a winding machine, and then the double-flat-wall plastic steel winding pipe with the length of tens of meters can be produced.
The beneficial effects of the invention are as follows: according to the double-flat-wall plastic steel winding pipe provided by the invention, the steel strip is tightly vertically wrapped in the cavity formed by overlapping the plastic plate strips through the embedded buckling of the male lock catch and the female lock catch between the plastic strips, so that the corrosion resistance problem of the steel strip is solved, the cracking problem caused by different linear expansion coefficients of steel and plastic is solved, the contribution of the steel strip to the pipeline strength is maximized, and the ring stiffness of the pipeline can reach 12.5KN/m 2 Even higher, easy to process, can be produced on site, and the manufacturing cost and the transportation cost can be greatly reduced.
Drawings
The invention is described in further detail below with reference to the drawings and examples.
FIG. 1 is a cross-sectional view of a double-buckle plastic strap of the present invention.
FIG. 2 is a cross-sectional view of a thin-walled double-buckled plastic panel belt of the present invention.
FIG. 3 is a drawing showing the process of fastening the double-fastening plastic plate and steel belt according to the present invention.
Fig. 4 is a view showing the buckling of the double-buckle plastic plate buckle of the present invention.
Fig. 5 is a cross-sectional view of a single layer conduit of the present invention.
Fig. 6 is a cross-sectional view of a double-layered pipe of the present invention.
In the figure: 1. double-buckle plastic plate strip 2, thin-wall double-buckle plastic plate strip 3, cavity 4, steel strip 5, inner wall 6, outer wall 7, male lock catch 8, female lock catch 9, bulge 10, pipe body 11, pipe inner layer 12, pipe outer layer
Detailed Description
FIG. 1 is a cross section of a double-buckle plastic plate strip 1 of the invention, FIG. 5 is a cross section of a single-layer pipeline, FIG. 6 is a cross section of a double-layer pipeline, wherein two ends of the double-buckle plastic plate strip are respectively provided with a female buckle 8 and a male buckle 7, the inner side of an elongated joint surface of an inner wall 5 is provided with a bulge 9 for fixing a steel belt, when the pipeline is produced, the inner wall 5 of the double-buckle plastic plate strip is upward, the male buckle 7 of the outer wall faces to an operation side, a right lower side plate of a winding machine is arranged, after the plate enters the winding machine to be spirally wound for one circle, the male buckle and the female buckle of the inner wall are mutually embedded and clamped, an adhesive is applied to the joint surface to form a plastic pipe body, at the moment, then the vertical steel belt 4 is arranged, the steel belt rotates along with the plastic pipe body, and enters a vertical cavity 3 formed after the plate buckle is connected, the steel belt is wrapped, cannot be corroded, and plays a reinforcing role, so that the pipeline 10 has higher ring rigidity; when the double-layer pipeline is produced, after the inner-layer pipeline 11 is molded, the outer-layer pipeline wall 12 is compounded to form the double-layer pipeline.
Examples: taking production of DN1000 double-flat-wall plastic steel winding pipe as an example, the rigidity of the ring of the polyvinyl chloride (PVC-U) winding pipe without steel belts is 4KN/m 2 When the steel belt is added, the ring rigidity of the double-flat-wall plastic steel winding pipe can reach 13KN/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The rigidity of the pipeline ring for producing DN3000 can reach 8KN/m 2 The production of the high-ring rigidity and large-caliber pipeline is realized.
Claims (5)
1. A double-flat-wall plastic steel winding pipe is a steel-plastic composite pipe with inner and outer flat walls, and is characterized in that: the plastic pipe comprises a pipe body (10) of a plastic structure formed by spirally winding and buckling double-buckle plastic plate belts (1) with male and female buckles on two sides and a vertical steel belt (4) embedded in a cavity of the pipe body, wherein the effective width b value of the double-buckle plastic plate belts with the male and female buckles on two sides after spirally winding and buckling is larger than the width a value of the plate belt between two side walls of the plate belt, a vertical cavity (3) is formed, and the vertical steel belt (4) is embedded in the cavity.
2. The double flat wall plastic steel wound pipe of claim 1 wherein: the double-buckle plastic plate strip with the male buckle and the female buckle on two sides is a special-shaped strip produced by an extrusion process, is of a hollow, square hole and I-shaped structure, is provided with a middle-divided transverse connecting rib compared with a thick plate, and is provided with a thin-wall double-buckle plastic plate strip (2) without the middle-divided transverse connecting rib; one end of the inner wall (5) of the plate belt is provided with a female lock catch (8) embedded downwards, the other end of the inner wall is provided with an elongated joint surface, the inner side of the joint surface is provided with a bulge (9) for fixing a steel belt, one side of the bulge (9) is a vertical flat wall, the other side of the bulge is a trapezoid or angle bulge with an inclined plane, the end part of the joint surface is provided with a male lock catch (7) facing the outer wall (6), the root part of the male lock catch is rectangular, the top part of the male lock catch is a convex shape with an upper tip and a lower arc shape or a hemispherical shape or a triangle or a calabash shape, and the male lock catch and the female lock catch are mutually matched to play roles of overlapping and sealing the inner wall of a pair of pipes when the pipe is manufactured; the outer wall of the plate is provided with a male locking structure and a female locking structure which correspond to the inner wall and have opposite directions, and the lap joint and the sealing effect on the outer wall of the pipe are achieved when the pipe is manufactured; the center distance between the male lock catch and the female lock catch is equal to the value of the effective width b of the plate belt and is larger than the value of the width a of the plate belt between the two side walls of the plate belt, and the formed cavity (3) is a continuous and airtight vertical cavity.
3. The double flat wall plastic steel wound pipe of claim 1 wherein: when producing the pipeline with large diameter and higher ring rigidity, the structure is a double-layer winding pipeline, which is formed by compounding the inner layer (11) of the pipeline and the outer layer (12) of the pipeline, vertical steel belts are embedded in the cavity of the wall of each layer of pipeline, and the plates and the belts are bonded into a whole through an adhesive.
4. The double flat wall plastic steel wound pipe of claim 1 wherein: the plastic is PVC-U rigid polyvinyl chloride or PVC-M impact modified polyvinyl chloride or PPB block propylene.
5. The double flat wall plastic steel wound pipe of claim 1 wherein: the steel belt is a vertical steel belt, and the height-thickness ratio is more than 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610856157.3A CN107842652B (en) | 2016-09-19 | 2016-09-19 | Double-flat-wall plastic steel winding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610856157.3A CN107842652B (en) | 2016-09-19 | 2016-09-19 | Double-flat-wall plastic steel winding pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107842652A CN107842652A (en) | 2018-03-27 |
| CN107842652B true CN107842652B (en) | 2023-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610856157.3A Active CN107842652B (en) | 2016-09-19 | 2016-09-19 | Double-flat-wall plastic steel winding pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107842652B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161120A (en) * | 2019-06-16 | 2021-01-01 | 白灵毅 | UPVC double-plastic lining reinforced winding pipe and production process thereof |
| CN112524350B (en) * | 2020-12-04 | 2022-11-22 | 成都中企动力技术服务有限公司 | Hollow structure wall winding pipe with high connection strength |
| CN117404546A (en) * | 2023-11-24 | 2024-01-16 | 北京北排建设有限公司 | Repair profile with laminating type spiral winding |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687690A (en) * | 1984-02-20 | 1987-08-18 | Rib Loc Hong Kong Limited | Method of and means for forming and sealing helically wound tubes |
| CN101523104A (en) * | 2006-10-04 | 2009-09-02 | 里洛克澳大利亚有限公司 | Composite reinforced strip windable to form a helical pipe and method therefor |
| CN202915031U (en) * | 2012-10-24 | 2013-05-01 | 滨州华晨新型建材有限公司 | Winding plate strip with steel strip |
| CN203223655U (en) * | 2013-04-17 | 2013-10-02 | 何军 | Steel-plastic composite winding structure wall pipe |
| CN204153449U (en) * | 2014-08-27 | 2015-02-11 | 新疆玉悦科技发展有限公司 | By the plastic spiral coil strip of steel strip reinforced |
| CN105889653A (en) * | 2016-07-04 | 2016-08-24 | 马清洪 | PVC (polyvinyl chloride) steel belt winding pipe |
| CN206036430U (en) * | 2016-09-19 | 2017-03-22 | 河北环水塑胶管业有限公司 | Two planomural plastic steel wound pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2739453B1 (en) * | 2011-08-05 | 2019-02-06 | Elegant Technical Solutions Pty Limited | Method for controlling creep in spirally expandable profile |
-
2016
- 2016-09-19 CN CN201610856157.3A patent/CN107842652B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687690A (en) * | 1984-02-20 | 1987-08-18 | Rib Loc Hong Kong Limited | Method of and means for forming and sealing helically wound tubes |
| CN101523104A (en) * | 2006-10-04 | 2009-09-02 | 里洛克澳大利亚有限公司 | Composite reinforced strip windable to form a helical pipe and method therefor |
| CN202915031U (en) * | 2012-10-24 | 2013-05-01 | 滨州华晨新型建材有限公司 | Winding plate strip with steel strip |
| CN203223655U (en) * | 2013-04-17 | 2013-10-02 | 何军 | Steel-plastic composite winding structure wall pipe |
| CN204153449U (en) * | 2014-08-27 | 2015-02-11 | 新疆玉悦科技发展有限公司 | By the plastic spiral coil strip of steel strip reinforced |
| CN105889653A (en) * | 2016-07-04 | 2016-08-24 | 马清洪 | PVC (polyvinyl chloride) steel belt winding pipe |
| CN206036430U (en) * | 2016-09-19 | 2017-03-22 | 河北环水塑胶管业有限公司 | Two planomural plastic steel wound pipe |
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| Publication number | Publication date |
|---|---|
| CN107842652A (en) | 2018-03-27 |
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