CN214197628U

CN214197628U - High-strength double-wave pipeline

Info

Publication number: CN214197628U
Application number: CN202022749993.6U
Authority: CN
Inventors: 彭小峰; 林强; 代小勇
Original assignee: Sichuan Hengen New Material Technology Co ltd
Current assignee: Sichuan Hengen New Material Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-09-14
Anticipated expiration: 2030-11-24

Abstract

The utility model provides a two ripples pipeline of high strength, its high strength two ripples pipeline ring rigidity of preparing out is high, corrosion resistance is strong, bearing structure is more reasonable, including inlayer polyethylene, outer polyethylene, the mesh steel band, adhesive resin, the anticorrosive coating, strengthening band and heat shrink band, the mesh steel band sets up in the top of inlayer polyethylene, the cross-section of mesh steel band has the two ripples crests that are the M type, outer polyethylene laminating sets up the top at the mesh steel band, the inside of outer polyethylene is provided with adhesive resin, be provided with the clearance between every two ripples crests, still be provided with the anticorrosive coating between the clearance, strengthening band and heat shrink band, the setting of outer polyethylene is hugged closely to the anticorrosive coating, strengthening band and heat shrink band set up outside the anticorrosive coating, the heat shrink band sets up the top at the strengthening band.

Description

High-strength double-wave pipeline

Technical Field

The utility model relates to a bellows field particularly, relates to a two ripples pipelines of high strength.

Background

The composite layers of the steel strip corrugated pipe are carried out in a plastic molten state, and are completely different from secondary melting and forming of a winding pipe (hollow wall pipe), so that the layers are completely bonded, and the firmness is very high. The surface of the steel strip is specially pretreated to enhance the corrosion resistance of the steel and the adhesive force of the steel and plastics and improve the peel strength. The plastic material is wound and formed in a fully molten state, and the overall structure of the pipe is firm and reliable. Due to the adoption of special materials and processes, the corrosion prevention problem of the steel plate is solved, the adhesion degree of the steel plate and the PE material is also solved, the service life of the pipeline is as long as that of a pure plastic pipeline, and the service life is guaranteed to be more than 50 years. In the prior art, the electric hot melting connection, the thermal contraction belt connection, the internal and external extrusion welding or the combination of various connections can be adopted, the connection is firm, and the reliable connection can ensure that the pipeline has zero leakage. However, the corrugated pipe in the prior art is usually of a single-wave structure, and the rigidity and the corrosion resistance of the corrugated pipe are not ideal and are easy to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength double wave pipeline, its high strength double wave pipeline ring rigidity of preparing out is high, corrosion resistance is strong, bearing structure is more reasonable.

The embodiment of the utility model is realized like this:

a high-strength double-wave pipeline comprises inner-layer polyethylene, outer-layer polyethylene, a meshed steel belt, bonding resin, an anticorrosive layer, a reinforcing belt and a heat-shrinkable belt, wherein the meshed steel belt is arranged above the inner-layer polyethylene, the cross section of the meshed steel belt is provided with M-shaped double wave crests, the outer-layer polyethylene is attached to the upper portion of the meshed steel belt, the bonding resin is arranged inside the outer-layer polyethylene, gaps are formed between every two wave crests, the anticorrosive layer, the reinforcing belt and the heat-shrinkable belt are further arranged between the gaps, the anticorrosive layer is arranged close to the outer-layer polyethylene, the reinforcing belt and the heat-shrinkable belt are arranged outside the anticorrosive layer, and the heat-shrinkable belt is arranged above the reinforcing belt.

In a preferred embodiment of the present invention, the thickness of the corrosion-resistant layer is equal to the thickness of the outer polyethylene layer.

In a preferred embodiment of the present invention, the sum of the thicknesses of the reinforcing tape and the heat shrinkable tape is equal to the thickness of the corrosion-resistant layer.

In a preferred embodiment of the present invention, the minimum wall thickness of the outer polyethylene layer is 5-11 mm.

In a preferred embodiment of the present invention, the minimum wall thickness of the inner polyethylene layer is 2.5-6 mm.

The embodiment of the utility model provides a beneficial effect is: the utility model provides a two ripples pipeline of high strength is provided with inlayer polyethylene, outer polyethylene, mesh steel band, adhesive resin, anticorrosive coating, strengthening band and heat shrink area on the ripple layer, mutually supports between each material layer and makes the ring rigidity of ripple pipeline higher, the corrosion resistance is stronger, sets up the ripple layer into the two ripples crest of M type simultaneously for the bearing capacity of ripple pipeline is better, can bury underground for a long time and use deeply.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

icon: 001-inner layer polyethylene; 002-outer polyethylene; 003-mesh steel strip; 004-bonding resin; 005-anticorrosive layer; 006-reinforcing band; 007-heat shrinkable tape.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

First embodiment

Referring to fig. 1, the embodiment provides a high-strength dual-wave pipeline, which includes an inner layer polyethylene 001, an outer layer polyethylene 002, a mesh steel band 003, an adhesive resin 004, an anticorrosive layer 005, a reinforcing band 006 and a heat-shrinkable band 007, wherein the mesh steel band 003 is disposed above the inner layer polyethylene 001, the cross section of the mesh steel band 003 has M-shaped dual-wave peaks, the outer layer polyethylene 002 is attached to and disposed above the mesh steel band 003, the adhesive resin 004 is disposed inside the outer layer polyethylene 002, gaps are disposed between the dual-wave peaks, the anticorrosive layer 005, the reinforcing band 006 and the heat-shrinkable band 007 are further disposed between the gaps, the anticorrosive layer 005 is disposed in close contact with the outer layer polyethylene 002, the reinforcing band 006 and the heat-shrinkable band 007 are disposed outside the anticorrosive layer 005, and the heat-shrinkable band 007 is disposed above the reinforcing band 006.

More specifically, the thickness of the anticorrosive layer 005 in the present embodiment is equal to the thickness of the outer polyethylene 002. The sum of the thicknesses of the reinforcing tape 006 and the heat shrinkable tape 007 is equal to the thickness of the corrosion protection layer 005. The minimum wall thickness of the outer layer of polyethylene 002 is 5-11 mm. The minimum wall thickness of the inner layer polyethylene 001 is 2.5-6 mm. The height of the double wave crest is 10-22mm, and the thickness of the anticorrosive coating is as follows: 2.2mm-3.5 mm.

The embodiment also provides a preparation method of the high-strength double-wave pipeline, which comprises the following steps:

(1) preparing a galvanized steel strip layer: starting the pipeline forming device and the bending device, wherein the pipeline forming device and the bending device respectively operate at the speed of 1:1.4, the galvanized steel strip layer is formed for the first time after sequentially passing through the vertical roller and the forming concave-convex roller, the galvanized steel strip layer is formed into a steel strip ring by a first bending group roller of the bending device, and the bending device adjusts a second bending group roller to polish the surface of the steel strip ring to be smooth and flat; then adjusting a third bending group of rollers to roll the steel belt ring into a circle with the same diameter as the target steel belt ring; the diameter of the steel belt ring is equal to the diameter of the target steel belt ring plus 30-50 mm; the adjusted circular steel belt ring is transmitted to a feeding device, a feeding motor is started, the relative position of a spacer bush on the feeding device is adjusted, and smooth operation of the formed steel belt ring on the feeding device is guaranteed;

(2) preparation before rolling: the feeding device feeds the end of the circular steel band ring into the space between the upper polytetrafluoroethylene pressure wheel and the lower polytetrafluoroethylene pressure wheel, the upper polytetrafluoroethylene pressure wheel presses downwards, the guide device of the roller is adjusted at the moment, and then the upper polytetrafluoroethylene pressure wheel and the lower polytetrafluoroethylene pressure wheel are loosened; adjusting the winding inclination angles of the four rollers to ensure that the central lines of the upper polytetrafluoroethylene pressure roller, the lower polytetrafluoroethylene pressure roller and the roller are consistent;

(3) formal preparation work: opening an oven, preheating a steel belt to 100 ℃, extruding an outer sheet and an inner sheet of the corrugated pipe, starting a hot air device at the same time, adjusting the rotation speed to a process value, and then pressing an upper polytetrafluoroethylene pressure roller and a lower polytetrafluoroethylene pressure roller; starting a forming motor, a bending motor and a feeding motor, and operating according to corresponding ratios; feeding the steel belt into an upper polytetrafluoroethylene pressure roller, synchronously moving the steel belt along with the inner sheet and the outer sheet, and then guiding the steel belt into a lower polytetrafluoroethylene pressure roller; opening the outer sheet blowing device, and adjusting the edge pressing wheel to ensure that the shapes of the outer sheet and the steel belt are the same;

(4) when the steel belt, the inner sheet and the outer sheet run to the pipe rack, the inner water spraying device is opened to spray water on the inner wall of the pipeline, and the left and right positions and the height of the pipe rack are adjusted according to the natural inclination angle position of the pipe so as to adapt to the requirements of the outer diameter sizes of the pipes with different specifications;

(5) cutting off the end face of the pipe before starting, measuring the inner and outer dimensions of the pipe, and adjusting the operating parameters of the inner sheet extruder and the outer sheet extruder according to the formulated standard of the pipe and the actual dimension condition of the pipe so as to achieve the qualified pipe; the bonding condition of the inner and outer sheets of the pipe is detected, and the heating devices outside the oven and the steel belt are properly adjusted, so that the bonding of the steel belt and the inner and outer sheets of the pipe is reliable.

In summary, in the high-strength dual-wave pipeline in the embodiment, the corrugated layer is provided with the inner layer polyethylene, the outer layer polyethylene, the mesh steel belt, the adhesive resin, the corrosion-resistant layer, the reinforcing belt and the heat shrinkage belt, the material layers are mutually matched, so that the ring stiffness of the corrugated pipeline is higher, the corrosion resistance of the corrugated pipeline is stronger, and meanwhile, the corrugated layer is set to be in an M-shaped dual-wave crest shape, so that the corrugated pipeline has better bearing performance and can be deeply buried underground for long-term use.

This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It should be understood that the embodiments described in this specification can be implemented in many alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. It will be appreciated by persons skilled in the art that a plurality of features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to form embodiments which are not explicitly illustrated or described. The described combination of features provides a representative embodiment for a typical application. However, various combinations and modifications of the features consistent with the teachings of the present invention may be used as desired for particular applications or implementations.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The high-strength double-wave pipeline is characterized by comprising inner-layer polyethylene, outer-layer polyethylene, a meshed steel belt, adhesive resin, an anticorrosive layer, a reinforcing belt and a heat-shrinkable belt, wherein the meshed steel belt is arranged above the inner-layer polyethylene, the cross section of the meshed steel belt is provided with M-shaped double wave crests, the outer-layer polyethylene is arranged above the meshed steel belt in a fitting mode, the adhesive resin is arranged inside the outer-layer polyethylene, a gap is formed between every two wave crests, the anticorrosive layer, the reinforcing belt and the heat-shrinkable belt are further arranged among the gaps, the anticorrosive layer is arranged close to the outer-layer polyethylene, the reinforcing belt and the heat-shrinkable belt are arranged outside the anticorrosive layer, and the heat-shrinkable belt is arranged above the reinforcing belt.

2. The high strength twin wave pipe as defined in claim 1 in which the corrosion protection layer is equal in thickness to the outer polyethylene layer.

3. The high strength twin wave pipe as defined in claim 1 wherein the sum of the thickness of the reinforcing strip and the heat shrink strip is equal to the thickness of the corrosion protection layer.

4. The high strength twin wave pipe as defined in claim 1 wherein the minimum wall thickness of the outer layer polyethylene is 5-11 mm.

5. The high strength twin wave pipe as defined in claim 1 wherein the minimum wall thickness of said inner layer polyethylene is 2.5-6 mm.