Electric heating flexible conveying pipe and manufacturing method of electric heating flexible conveying pipe

Abstract

The invention discloses an electric heating flexible conveying pipe and a manufacturing method of the electric heating flexible conveying pipe, the electric heating flexible conveying pipe comprises a flexible inner pipe, a first interlayer, a second interlayer and a heating layer, the flexible inner pipe is provided with a conveying inner cavity, the first interlayer is arranged on the outer side of the flexible inner pipe and can wrap the flexible inner pipe, and the second interlayer is arranged on the outer side of the conveying inner cavity. The second interlayer is arranged on the outer side of the first interlayer, the heating layer is clamped between the first interlayer and the second interlayer, the heating layer comprises electric heating strips, and the second interlayer can wrap the heating layer. The heating layer is clamped and fixed by arranging the first interlayer and the second interlayer, loosening and displacement of the electric heating strip are avoided, the flexible inner pipe is heated evenly, the temperature control difficulty of the flexible inner pipe is reduced, and use is convenient.

Description

technical field [0001] The invention relates to the technical field of material transportation, in particular to an electrothermal flexible material delivery pipe and a manufacturing method of the electrothermal flexible material delivery pipe. Background technique [0002] In existing engineering projects, fluid materials such as kerosene and asphalt are often used. For the transportation of such fluid materials, due to their high viscosity and high freezing point, when flexible pipes are used for transportation, they are generally used in flexible pipes. The outer side of the tube is provided with a linear electric heating strip along the axial direction, and the electric heating strip is used to generate heat, and the heat is transferred to the fluid material in the tube to keep the fluid material in the tube warm and prevent it from agglomerating or solidifying in the tube. For the above structure, the electric heating strip is easy to loosen and cause displacement. When...

AI Technical Summary

Problems solved by technology

For the above structure, the electric heating strip is easy to loosen and cause displacement. When in use, the flexible pipe is often bent, and the electric heating strip is easy to separate from the flexible pipe at the bend, resulting in inconsistent heating effects at different parts of the flexible pipe. Increase the difficulty of temperature control, not easy to apply

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