Carbon fiber heating tube with long service life and high thermal efficiency and preparation process thereof

Abstract

The invention discloses a carbon fiber heating tube with long service life and high thermal efficiency and a preparation process thereof. The carbon fiber heating tube comprises a quartz glass tube, acarbon fiber heating filament, a ceramic end cover, a molybdenum ring and a metal electrode. The carbon fiber heating filament is arranged in the quartz glass tube, the inner wall of the quartz glasstube is coated with a graphene coating, and the carbon fiber heating filament is made of carbon fiber filaments. The surface of the carbon fiber heating wire is coated with a graphene coating layer,and two ends of the carbon fiber heating wire are respectively connected with one end of a metal electrode. The surface of the carbon fiber heating wire is coated with the graphene coating layer, theheating efficiency of the carbon fiber heating wire can be effectively improved, and when the carbon fiber heating wire is powered on for heat conduction, carbon ions in the graphene coating layer violently collide to generate heat energy, Compared with traditional carbon fiber heating wire equipment, heating equipment made of the product saves energy by about 30%, and is low in heat energy loss and long in service life. The inner wall of the quartz glass tube is coated with the graphene coating, so that the heat conduction efficiency of the quartz glass tube can be enhanced.

Description

technical field [0001] The invention relates to the technical field of carbon fiber heating tubes, in particular to a carbon fiber heating tube with long service life and high thermal efficiency and a preparation process thereof. Background technique [0002] In the prior art, the electric heating technology using metal materials as heating elements has been widely used in various fields. However, the surface of the metal wire is easily oxidized at high temperature. Due to the continuous thickening of the oxide layer, the effective current passing area is reduced and the current load is increased, so it is easy to burn out. Carbon fiber endows its composite materials with excellent performance due to its inherent characteristics. It has a series of high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electrical conductivity, heat transfer and small thermal expansion coefficient. Excellent per...

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Problems solved by technology

However, this technology has the problems of high energy consumption, large heat loss, long heating time, and short service life of carbon fiber filaments, which is not conducive to the widespread use of carbon fiber heating tubes.

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