an electric heating tube

Abstract

The invention discloses an electric heating tube. The electric heating tube includes a tube body for transporting liquid, and a layer of net-like tubular heating carrier is coated on the tube body. The heating carrier is a carbon fiber heating wire and a fire-resistant A mesh heating layer made of mixed fiber filaments. The present invention mixes and weaves the braidable carbon fiber heating wire and the fire-resistant and flame-retardant fiber wire into a net-shaped tubular heating carrier. Because the carbon fiber and fiber wire have strong processability, good toughness, and the mesh-like weaving structure can greatly Improve the curvature and processing technology of the mixed heating carrier, and solve the technical problem that the joint part of the pipe body cannot be thermally compensated by only one carrier.

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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