CN109282089B

CN109282089B - Double-channel composite pipe

Info

Publication number: CN109282089B
Application number: CN201811450240.6A
Authority: CN
Inventors: 张荣景
Original assignee: Jiangsu Geron Pipe Industry Co ltd
Current assignee: Jiangsu Geron Pipe Industry Co ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2021-04-30
Anticipated expiration: 2038-11-30
Also published as: CN109282089A

Abstract

The invention discloses a double-channel composite pipe which comprises a first composite pipe and a second composite pipe, wherein the first composite pipe is sleeved in the first composite pipe, the section of the second composite pipe is in an isosceles trapezoid shape, silicon rubber is filled between the two waists of the isosceles trapezoid shape and the inner wall of the first composite pipe, the first composite pipe is sequentially provided with a polyethylene fiber outer layer, a foamed plastic layer and a plastic resin layer from outside to inside, the second composite pipe is sequentially provided with a fiber reinforced outer layer and a silicon rubber elastic inner layer from outside to inside, and each pipe wall of the silicon rubber elastic inner layer is provided with an elastic expansion part. The composite pipe II can be used for simultaneously conveying two different media, is low in cost, can effectively prevent the pipeline from being broken or frost-cracked due to the fact that the outer layer of the pipeline is made of polyethylene fibers, and can enhance the tensile strength of the pipeline.

Description

Double-channel composite pipe

Technical Field

The invention relates to the technical field of pipelines, in particular to a double-channel composite pipe.

Background

Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. Water is a valuable resource essential for human production and life, but its naturally occurring state does not completely meet the needs of human beings. Only when hydraulic engineering is built, water flow can be controlled, flood disasters are prevented, and water quantity is adjusted and distributed to meet the requirements of people on water resources in life and production. Hydraulic engineering needs to use various plastic pipelines to guarantee normal operation and use of engineering, but the existing double-channel composite pipe has many defects, for example, patent 201220460023.7 double-channel steel-plastic composite pipe, the inner and outer composite pipe channels of the composite pipe are sleeved by a positioning device, although the connection, installation and replacement of the inner and outer composite pipes are very convenient, the structural strength is low, and the stability is poor.

Disclosure of Invention

The invention aims to: aiming at the problems, the double-channel composite pipe is provided.

The invention is realized by the following technical scheme:

the utility model provides a binary channels composite pipe, includes composite pipe one and composite pipe two, composite pipe suit is in composite pipe one, composite pipe two's cross-section is isosceles trapezoid, and it has silicon rubber to fill between two isosceles trapezoid's the waist and the inner wall of composite pipe one, composite pipe one is equipped with polyethylene fiber skin, foamed plastic layer and plastic resin layer from outer to interior in proper order, and composite pipe two is equipped with the fibre in proper order by outer to interior and strengthens skin, silicon rubber elasticity inlayer, all be equipped with elastic expansion portion on every pipe wall of silicon rubber elasticity inlayer.

Furthermore, the polyethylene fiber outer layer and the plastic resin layer are respectively provided with a V-shaped hole groove, the opening parts of the V-shaped hole grooves face the foam plastic layer, and asphalt is filled in the V-shaped hole grooves.

Further, the polyethylene fiber outer layer is formed by co-extruding net-shaped cloth and polyethylene materials.

Further, the plastic resin layer is prepared from the following raw materials in parts by weight: 75-85 parts of ultrahigh molecular weight polyethylene, 10-20 parts of epoxy resin, 1-10 parts of bamboo charcoal sub-nanoscale micro powder, 1-2 parts of antioxidant and 0.2-1 part of carbon fiber.

Furthermore, the V-shaped pore grooves are arranged in a staggered mode in the circumferential direction of the foam plastic layer.

Furthermore, the depth of the V-shaped hole groove is 1/2-2/3 of the thickness of the polyethylene fiber outer layer and the plastic resin layer.

Further, the foamed plastic layer is phenolic aldehyde foamed plastic.

Further, the fiber-reinforced outer layer is made of a polyethylene and glass fiber composite material.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the pipeline outer layer adopts the polyethylene fiber outer layer, so that the pipeline can be effectively prevented from being broken or frost-cracked, and the tensile strength of the pipeline is enhanced.

2. According to the invention, the inner wall of the composite pipe II is set to be the elastic inner layer of the silicon rubber, and the elastic expansion part is arranged, so that the pressure of the pipeline can be effectively relieved, and the strength and the pressure resistance of the pipeline are improved.

3. The V-shaped hole groove is arranged on the pipeline, and asphalt is filled in the groove, so that noise generated by fluid impacting the pipe wall is absorbed.

Drawings

The invention is further illustrated with reference to the following figures and examples.

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

the labels in the figure are: the composite pipe comprises a 1-polyethylene fiber outer layer, a 2-foam plastic layer, a 3-plastic resin layer, 4-V-shaped hole grooves, a 5-fiber reinforced outer layer, a 6-silicon rubber elastic inner layer, a 7-elastic expansion part, an 8-composite pipe II and a 9-composite pipe I.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, a binary channels composite pipe, including first composite pipe 9 and second composite pipe 8, second composite pipe 8 suit is in first composite pipe 9, second composite pipe 8's cross-section is isosceles trapezoid, and it has silicon rubber to fill between isosceles trapezoid's two waists and the inner wall of first composite pipe 9, first composite pipe 9 is equipped with outer 1, foamed plastic layer 2 and the plastic resin layer 3 of polyethylene fiber from outer to interior in proper order, foamed plastic layer 2 is phenolic aldehyde foamed plastic, outer 1 is made by netted cloth and polyethylene material coextrusion, and second composite pipe 8 is equipped with outer 5, the silicon rubber elasticity inlayer 6 of fibre reinforcement in proper order from outer to interior, all be equipped with elastic expansion portion 7 on every pipe wall of silicon rubber elasticity inlayer 6.

In this embodiment, it has V type hole groove 4 to equally divide respectively on polyethylene fiber skin 1, the plastic resin layer 3, and V type hole groove 4 sets up along the crisscross setting in the 2 circumferencial direction of foamed plastic layer, and the opening part of V type hole groove 4 all faces foamed plastic layer 2, and V type hole groove 4 intussuseption is filled with pitch, just the degree of depth of V type hole groove 4 is 1/2-2/3 of polyethylene fiber skin 1, plastic resin layer 3 thickness.

In the embodiment, the plastic resin layer 3 is prepared from the following raw materials in parts by weight: 75-85 parts of ultrahigh molecular weight polyethylene, 10-20 parts of epoxy resin, 1-10 parts of bamboo charcoal sub-nanoscale micro powder, 1-2 parts of antioxidant and 0.2-1 part of carbon fiber.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a binary channels composite pipe, its characterized in that, is including composite pipe one and composite pipe two, composite pipe two suit is in composite pipe one, composite pipe two's cross-section is isosceles trapezoid, and it has silicon rubber to fill between two isosceles trapezoid's waists and the inner wall of composite pipe one, composite pipe one is by outer to interior polyethylene fiber skin, foamed plastic layer and the plastic resin layer of being equipped with in proper order, and composite pipe two is by outer to interior outer skin, the silicon rubber elasticity inlayer of strengthening of being equipped with the fibre in proper order, all be equipped with the elastic expansion portion on every pipe wall of silicon rubber elasticity inlayer, equally divide on polyethylene fiber skin, the plastic resin layer and do not open V type hole groove, and the opening in V type hole groove all is towards foamed plastic layer, and V type hole inslot is filled there is pitch.

2. The dual channel composite pipe as claimed in claim 1, wherein the polyethylene fiber outer layer is made by co-extruding a mesh fabric and a polyethylene material.

3. The dual-channel composite pipe as claimed in claim 1, wherein the plastic resin layer is prepared from the following raw materials in parts by weight: 75-85 parts of ultrahigh molecular weight polyethylene, 10-20 parts of epoxy resin, 1-10 parts of bamboo charcoal sub-nanoscale micro powder, 1-2 parts of antioxidant and 0.2-1 part of carbon fiber.

4. The dual channel composite pipe as claimed in claim 1, wherein the V-shaped grooves are staggered along the circumference of the foam layer.

5. The dual channel composite pipe as claimed in claim 1, wherein the depth of the V-shaped grooves is 1/2-2/3 of the thickness of the polyethylene fiber outer layer and the plastic resin layer.

6. The dual pass composite tube of claim 1, wherein the foam layer is phenolic foam.

7. The dual channel composite pipe as claimed in claim 1, wherein the fiber reinforced outer layer is made of polyethylene and glass fiber composite.