Pipe

 

The invention relates to pipes of plastics made with reinforcement. The technical result of the invention is to improve reliability. Pipe containing layers of polymer and composite fiber material, made from the outer layer in the form of a helical U - or W-shaped profile wall outside, sealed with composite fibrous material and the adjacent coils. 2 C.p. f-crystals, 1 Il.

Known composite tube containing the inner and outer layers, connected to each other - Germany application No. 4130167, F 16 L 9/14, B 29 L 23/22, 21 37/06.

The inner layer pipe made of thermoplastic outer is made of corrosion-resistant metal.

The disadvantage of this pipe is of considerable weight and poor insulation.

Known for another tube containing layers of polymer and composite fiber material - patent RU NO. 2095676, F 16 L 9/133.

Layers of this pipe is bonded through Sevilen.

On the totality of symptoms and the achieved result that the tube closest to the proposed and adopted for the prototype.

The weight of this pipe, due to the production of nonmetal, significantly reduce the AK as it has low rigidity, the tendency of the composite fibrous layer to increased abrasion and, therefore, lack of reliability.

The objective of the invention is to improve the reliability.

To solve this problem improved pipe containing layers of polymer and composite fiber material.

The improvement consists in that the pipe is made with an outer layer in the form of a helical U - or W-shaped profile wall outside, sealed with composite fibrous material and the adjacent coils. In variants of the pipe outer layer is made of a polymer or reinforced plastic.

The discharging pipe with outer layer in the form of a U - or W-shaped profile wall outside, sealed with composite fibrous material and adjacent coils, provides increased stiffness of the pipe while reducing material consumption and protection of composite fibrous layer from abrasion, and thereby improves the reliability of the pipe.

Performing an outer layer of polymer can be obtained by extrusion and, thereby, to ensure the continuity of its manufacture as the reliability of the pipe.

Execution of the outer layer of reinforced plastic pipes can be obtained by the method is.

Below, with reference to the attached drawing, given a description of the proposed pipe.

The pipe has an internal sealing layer 1 of polymer material, the intermediate layer 2 made of composite fibrous material bonded with each other, for example through Sevillana, and the outer layer 3 made in the form of a helical U-shaped profile 4 or W-shaped 5 wall 6 to the outside, sealed with a composition-fibrous material layer 2 and the adjacent coils, for example by adhesive 7 and (or) by rolling 8 (which provides increased stiffness of the pipe when the reduction of material consumption and the protection layer of composite fibrous material from abrasion).

Variants of the outer layer 3 of the pipe may be made of a polymer (which can be obtained by extrusion) or from reinforced plastic (which can be obtained by pultrusion) with the continuity of the manufacturing process.

Cavity 9 of the pipe can be used, for example, for placement of insulating material, a heater or weights (not shown), which allows extending the functionality of the pipe.

In the manufacture of pipes on layer 1 (for example, in the form of a tubular shell with a layer of save poltroonery U - or W-shaped profile layer 3, then perform a heat treatment with the polymerization and cooling.

We offer pipe (due to increased rigidity while reducing the material intensity of the pipe and the protection layer of composite fibrous material from abrasion) has improved reliability and enhanced functionality.

Claims

1. Pipe containing layers of polymer and composite fibrous material, characterized in that it is made with an outer layer in the form of a helical U - or W-shaped profile wall outside, sealed with composite fibrous material and the adjacent coils.

2. Pipe under item 1, characterized in that the outer layer is made of polymer.

3. Pipe under item 1, characterized in that the outer layer is made of reinforced plastic.



 

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