Electrical heating tube

Abstract

The invention discloses an electrical heating tube. The electrical heating tube comprises a tube body for delivering liquids, which is covered with a layer of netty tubular heating carrier. The heating carrier is a netty heating layer formed by mixing weaving of carbon fiber heating filaments and fire-proof anti-flaming filaments. According to the electrical heating tube, the carbon fiber heating filaments and the fire-proof anti-flaming filaments which can be woven are mixed and woven into the netty tubular heating carrier, carbon fibers and filaments are high in machinable process and good in toughness, and the mixed heating carrier tortuosity and machining process can be greatly improved by the netty woven structure, so that the technical problem that thermal compensation cannot be performed on tube body joint portions only through one carrier is solved.

Description

technical field [0001] The invention relates to an electric heating tube, and specifically designs an electric heating tube adopting external winding heating. Background technique [0002] The electric heating tubes currently used in the market all use winding heating for thermal compensation; this heating method has great limitations: [0003] (1): The heating power per unit length cannot be precisely controlled; [0004] (2): Due to the limitations of the winding process, the heating distribution is uneven, which is easy to cause local overheating; [0005] (3): The reason for the material of the heating medium determines the poor curvature of the electric heating tubes currently on the market, which greatly reduces the use range of the heating tubes; [0006] (4): The reason for heating the material is that the heating temperature of the heating medium itself is not controlled. In the case of long-term heating, it is easy to cause the heated object to be damaged due to ...

AI Technical Summary

Problems solved by technology

[0002] The electric heating tubes currently used in the market all use winding heating for thermal compensation; this heating method has great limitations:

[0003] (1): The heating power per unit length cannot be precisely controlled;

[0004] (2): Due to the limitations of the winding process, the heating distribution is uneven, which is easy to cause local overheating;

[0005] (3): The reason for the material of the heating medium determines the poor curvature of the electric heating tubes currently on the market, which greatly reduces the use range of the heating tubes;

[0006] (4): The reason for heating the material is that the heating temperature of the heating medium itself is not controlled. In the case of long-term heating, it is easy to cause the heated object to be damaged due to excessive temperature;

[0008] (6): The winding heating method cannot achieve effective heating of the entire heating tube, especially the quick joints at both ends of the tube, and if the tube cannot get effective thermal compensation at the quick joints when transporting solutions, it will cause the entire heating tube to The pipeline delivery system is not working

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