Pipe

FIELD: pipeline engineering.

SUBSTANCE: pipe has wall provided with flat sections. The longitudinal projections and mating hollows are provided in the middle of opposite flat sections of the wall.

EFFECT: enhanced reliability of joining.

2 cl, 3 dwg

 

The invention relates to the field of pipes.

Known pipe having an annular wall GOST-78 “Pipe steel seamless hot rolled”.

The disadvantage of this pipe is limited in functionality, and, for example, a package of these pipes has a large transverse dimensions and significant outside (dead) space between them.

Known for another tube containing wall with flat areas - GOST 8645-68 “rectangular steel Pipes”.

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

The functionality of this pipe is expanded, and a package of them has smaller dimensions and “dead” space between the pipes.

However, made in this tube a positive result remains insufficient.

Object of the invention is the extension of functionality.

To solve this problem improved pipe containing the flat wall sections.

The improvement consists in that the pipe is made with transverse contour in the form of a square, equipped with the same longitudinal protrusions and corresponding depressions in the middle of the opposite flat parts.

Variants of the pipe is made of polymer or fiber reinforced plastic.

The discharging pipe with operacnymi circuit in the form of a square, equipped with the same longitudinal protrusions and corresponding depressions in the middle of the opposite flat parts, provides a collection of pipes in the package with the power coupling adjacent pipe protrusions and depressions as the reliability of the package and thereby extends the functionality of the pipe.

The discharging pipe of the polymer allows to reduce the extrusion method.

The discharging pipe of reinforced plastic allows to reduce by pultrusion.

The discharging pipe on options for making further enhance its functionality and allows you to use it, for example, as a reinforcing element in the combined non-metallic pipes.

Figure 1 shows a pipe; figure 2 - pack tubes; figure 3 - spiral-wound pipe.

The following is a description of the proposed pipe.

Pipe with cross-circuit in the form of a square 1, equipped with the same longitudinal protrusions 2 and the corresponding depressions 3 in the middle of the opposite flat parts (which provides the collection with a power grip protrusions and depressions of the adjacent tubes 2 or neighboring turns of pipe figure 3).

The pipe can be performed, for example, of the polymer by extrusion or reinforced plastic pultrusion.

The pipe according to the invention (blagoj the OC capabilities of the power coupling to each other adjacent pipes or coils of pipe) has extended functionality.

1. The tube containing the flat wall sections, characterized in that it is made with longitudinal protrusions and corresponding depressions in the middle of the opposite flat wall sections.

2. The pipe according to claim 1, characterized in that it is made of polymer.

3. The pipe according to claim 1, characterized in that it is made of reinforced plastic.



 

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FIELD: pipeline engineering.

SUBSTANCE: pipe has wall provided with flat sections. The longitudinal projections and mating hollows are provided in the middle of opposite flat sections of the wall.

EFFECT: enhanced reliability of joining.

2 cl, 3 dwg

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