CN114233942A

CN114233942A - Polyethylene armor drain pipe

Info

Publication number: CN114233942A
Application number: CN202210090565.8A
Authority: CN
Inventors: 胡家俊
Original assignee: Shandong Pinyuan Pipe Industry Co ltd
Current assignee: Shandong Pinyuan Pipe Industry Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-03-25

Abstract

The invention provides a polyethylene armored drain pipe which comprises a pipe body, wherein the pipe body comprises an outer layer wall, a middle layer wall and an inner layer wall, the outer layer wall is an armored polyethylene layer wall, the middle layer wall is a vertical steel belt reinforcing rib, the vertical steel belt reinforcing rib is uniformly wound on the outer side of the inner layer wall, and the vertical steel belt reinforcing rib and the outer layer wall or the inner layer wall are connected into a whole through hot melting and extrusion molding. The armored polyethylene layer with the outer wall can increase the mechanical compressive strength of the pipe body, can prevent rat bite, and can prevent the damage problem of the inner wall caused by the armored base layer, the anti-erosion and anti-external force capabilities of the armored pipe are obviously improved, and the armored pipe is suitable for fluid conveying and ventilating pipes of various laying modes such as a pipe gallery bracket type, a suspension type, a buttress type, an underground type and the like. The compressive strength of the pipe can be obviously improved, the safety performance is improved, and the pipe has the strength of steel and the toughness of plastics.

Description

Polyethylene armor drain pipe

Technical Field

The invention relates to the technical field of pipes, in particular to a polyethylene armored drain pipe.

Background

In rainwater and sewage pipelines, common plastic pipes are widely adopted due to the excellent performance of convenient corrosion resistance, but the defects of insufficient ring stiffness, high production cost, unstable quality and the like presented by a simple plastic pipeline are gradually shown, and the use requirements of key engineering fields are difficult to achieve. The common steel-plastic composite winding pipe mostly adopts a single-layer wall structure, and can not effectively protect the inner wall working layer from being damaged by the external environment. Affecting the service life. The common plastic-coated steel pipe has excellent quality, but the factors of high cost, difficult production of large-caliber products and the like restrict the popularization and application of important engineering fields such as large water conservancy and the like.

Disclosure of Invention

The invention aims to provide a polyethylene armored drain pipe.

According to one object of the invention, the polyethylene armored drain pipe comprises a pipe body, wherein the pipe body comprises an outer layer wall, an intermediate layer wall and an inner layer wall, the outer layer wall is an armored polyethylene layer wall, the intermediate layer wall is a vertical steel belt reinforcing rib, the vertical steel belt reinforcing rib is uniformly wound on the outer side of the inner layer wall, and the vertical steel belt reinforcing rib and the outer layer wall or the inner layer wall are connected into a whole through hot melting and extrusion molding.

Further, the outer layer wall comprises a polyethylene matrix layer and an armor matrix, the polyethylene matrix layer is a polyethylene pipe wall made of polyethylene, the armor matrix is a steel belt or a steel wire mesh belt, and the armor matrix is embedded inside the polyethylene matrix layer.

Further, the armor matrix is formed by spirally winding a steel belt or a steel wire mesh belt.

Further, the polyethylene base body layer and the armor base body are integrally formed through die-casting and extrusion molding.

Further, a polyethylene cladding layer is arranged on the outer side of the armor matrix.

Furthermore, the polyethylene coating layer and the armor matrix are in a hot-melt extrusion molding and die-casting integrated structure.

Further, the inner wall is an armored polyethylene layer wall, and the inner wall is made of steel belts or steel wire mesh belts and polyethylene through hot melting, extrusion molding and die casting.

Further, the bottom end or the top end of the vertical steel strip reinforcing rib is embedded into the inner layer wall or the outer layer wall respectively.

Furthermore, a polyethylene coating layer is arranged on the outer side of the vertical steel belt reinforcing rib.

According to the technical scheme, the outer-layer-wall armored polyethylene layer can increase the mechanical compressive strength of the pipe body, can prevent rat bite, and can prevent the problem of damage of the inner-layer wall (working layer) caused by the armored base layer, the erosion resistance and the external force resistance of the armored pipe are obviously improved, and the armored pipe is suitable for fluid conveying and ventilating pipes of various laying modes such as a pipe gallery support type, a suspension type, a buttress type, an underground type and the like. The armored drainage pipe can obviously improve the compressive strength of the pipe and the safety performance, has the strength of steel and the toughness of plastics, and provides a new choice for main materials of urban and rural drainage pipe networks in areas which are easily damaged by machinery and corroded.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic structural view of an inner wall and an intermediate wall in example 1 of the present invention;

FIG. 3 is a schematic view of the internal structure of embodiment 1 of the present invention;

FIG. 4 is a sectional view of example 1 of the present invention;

FIG. 5 is a sectional view of example 2 of the present invention;

in the figure, 1, outer wall; 101. a polyethylene matrix layer; 102. an armor base; 2. an inner wall; 3. and (5) vertical steel belt reinforcing ribs.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in figures 1-4 of the drawings,

the utility model provides a polyethylene armor drain pipe, includes the pipeline body, and the pipeline body includes outer wall 1, intermediate layer wall and inlayer wall 2, and outer wall 1 adopts steel band or steel wire guipure and the compound armor polyethylene layer that forms of polyethylene die-casting extrusion molding, and outer wall 1 includes polyethylene matrix layer 101 and armor base member 102, and polyethylene matrix layer 101 is the polyethylene pipe wall that polyethylene made, and armor base member 102 inlays to be established inside polyethylene layer 101. The armor matrix 102 is formed by spirally winding a steel belt or a steel wire mesh belt. The armor base 102 is spirally wound, the spiral angle of the armor base is 30-80 degrees, and then the armor base and the polyethylene base layer 101 are pressed to form an integrally formed structure through a hot melting extrusion die-casting process.

Meanwhile, in order to better protect the antirust effect of the armor base body 102 and improve the combination effect of the armor base body 102 and the polyethylene base body layer 101, a polyethylene coating layer is arranged on the outer side of the armor base body 102, and a hot-melt extrusion molding die-casting process is adopted between the polyethylene coating layer and the armor base body to form an integrated structure.

Inner wall 2 is made by polyethylene, and the intermediate layer wall is vertical steel band strengthening rib 3, and vertical steel band strengthening rib 3 evenly twines in the outside of inner wall 2, and the bottom or the top of vertical steel band strengthening rib 3 imbed respectively in inner wall 2 or outer wall 1, and the outside of vertical steel band strengthening rib 3 is equipped with the polyethylene coating, and the polyethylene coating is formed by the polyethylene hot melt extrusion molding of cladding in the 3 outsides of vertical steel band strengthening rib. The vertical steel band reinforcing ribs 3 are connected with the outer layer wall 1 or the inner layer wall 2 into a whole through hot melting and extrusion molding.

The pipeline of this embodiment is three-layer wall structure, inlayer wall 2 is the working layer, the intermediate layer wall is the strenghthened type, outer wall 1 is the armor polyethylene protective layer, armor base member 102 adopts steel band or wire net band cladding in outer wall 1's polyethylene layer, can effectual improvement pipeline outer wall's intensity, both can increase the mechanical compressive strength of body, can also carry and prevent that the mouse from stinging, prevent to see through the armor and cause inlayer wall (working layer) damaged problem, the tubular product erosion prevention through the armor, anti external force ability is showing and is promoting, be applicable to piping lane posture, the suspension type, the fluid transport and the ventilation tubular product of various laying modes such as buttress formula and buried formula. The armored drainage pipe can obviously improve the compressive strength of the pipe and the safety performance, has the strength of steel and the toughness of plastics, and provides a new choice for main materials of urban and rural drainage pipe networks in areas which are easily damaged by machinery and corroded.

Example 2

As shown in fig. 5, this embodiment has substantially the same structure as embodiment 1, except that the inner wall 2 of this embodiment is an armored polyethylene wall, and the inner wall 2 is made of steel tape or steel wire mesh tape and polyethylene by hot-melt extrusion and die-casting.

The embodiment also adopts a three-layer wall structure, and the difference is that the inner layer wall is a working layer, the inner layer wall 2 also adopts an armored polyethylene layer wall structure similar to the outer layer wall 1, the internal pressure resistance of the inner layer can be improved, and the inner layer wall is suitable for a water supply and drainage pipeline of which the inner layer wall needs to bear pressure, or the inner layer wall is easy to be damaged by external force. The pipe wall of this embodiment is able to bear or endure environmental suitability strong, and the wholeness ability that does not influence tubular product even pipeline inner wall and outer wall receive external environment's damage yet compares with other steel plastic composite pipe, can effectual protection pipeline inner wall and outer wall all not receive external environment's destruction to guarantee the holistic performance index of tubular product and life.

In this embodiment, the inner wall may be a polyethylene composite structure with armor according to the use, that is, an armor (steel tape or steel wire mesh) is disposed in the polyethylene layer of the inner wall 2, and the armor (steel tape or steel wire mesh) is spirally wound in the polyethylene layer.

The armor layer arranged on the inner wall 2 of the embodiment can be used as an outer protective pressure-resistant wall and an inner protective water delivery wall, can be used as a large-caliber medium-and-long-distance water delivery pipeline, and can also be used as a gravity-flow water delivery pipeline for rainwater or sewage. The vertical steel belt reinforcing ribs 3 are used as the framework, so that the compressive strength of the pipe can be obviously improved, the corrosion resistance and the abrasion resistance are improved, and the service life is prolonged.

In the above embodiments, the steel strip for armor is made of cold-rolled steel strip, and the surface of the steel strip is coated with polyethylene by hot-melt extrusion molding. In order to improve the consolidation degree of the armor steel strip and the polyethylene layer, a plurality of through holes can be uniformly formed in the armor steel strip.

In conclusion, the armored layer adopted by the invention can increase the mechanical compression strength of the pipe body, can prevent rat bite, and can prevent the damage problem of the inner wall (working layer) caused by the armored layer, the anti-erosion and anti-external force capabilities of the armored pipe are obviously improved, and the armored pipe is suitable for fluid conveying and ventilation pipes of various laying modes such as a pipe gallery bracket type, a suspension type, a buttress type, an underground type and the like. The armored drainage pipe can obviously improve the compressive strength of the pipe and the safety performance, has the strength of steel and the toughness of plastics, and provides a new choice for main materials of urban and rural drainage pipe networks in areas which are easily damaged by machinery and corroded.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a polyethylene armor drain pipe, its characterized in that, includes the pipeline body, the pipeline body includes outer wall, intermediate layer wall and inlayer wall, outer wall is armor polyethylene layer wall, the intermediate layer wall is vertical steel band strengthening rib, vertical steel band strengthening rib evenly twines in the outside of inlayer wall, vertical steel band strengthening rib with outer wall or hot melt extrusion molding is connected as an organic wholely between the inlayer wall.

2. The polyethylene armored drain pipe of claim 1, wherein the outer wall comprises a polyethylene matrix layer and an armor matrix, the polyethylene matrix layer is a polyethylene pipe wall made of polyethylene, the armor matrix is a steel belt or a steel wire mesh belt, and the armor matrix is embedded inside the polyethylene matrix layer.

3. The polyethylene armored drain pipe of claim 2, wherein the armored matrix is spirally wound with steel bands or steel wire mesh tapes.

4. The polyethylene armored drain of claim 2, wherein the polyethylene matrix layer and the armored matrix are integrally formed by die cast extrusion compounding.

5. The polyethylene armored drain pipe of claim 2, wherein the armor base is provided with a polyethylene cladding on the outside.

6. The polyethylene armored drain pipe of claim 2, wherein the polyethylene cladding and the armor matrix are integrally formed by hot melt extrusion molding.

7. The polyethylene armored drain pipe of claim 1, wherein the inner wall is an armored polyethylene wall, and the inner wall is made by hot-melt extrusion and die-casting a steel belt or a steel wire mesh belt and polyethylene.

8. The polyethylene armored drain pipe of claim 1, wherein the vertical steel-tape reinforcing ribs are embedded at the bottom ends or the top ends thereof in the inner wall or the outer wall, respectively.

9. The polyethylene armored drain pipe of claim 1, wherein the vertical steel-band reinforcing ribs are provided with polyethylene cladding on the outer side.