Self-fixing electric tracing band

Abstract

The invention relates to a self-fixing electric tracing band, which comprises a lead wire, wherein the outer surface of the lead wire is wrapped with an inner wire tube protective layer, the outer surface of the inner wire tube protective layer is wrapped with a fireproof glass fiber braid layer, the upper surface of the protective layer is provided with a first connecting wing, a circular throughhole is formed in the surface of the first connecting wing, a second connecting wing is arranged on the lower surface of the protective layer, and the surface of the second connecting wing is fixedlyconnected with a connecting belt. Thus, through the cooperative use of the connecting belt and a limiting ring, the electric tracing band is tightly fixed on the surface of a pipeline when the electric tracing band is being fixed, the connecting belt is an elastic telescopic belt and can be used by pipelines of different diameters in a certain range, the operation is simple, other materials required for installation do not need to be sought additionally, the installation and storage are convenient, and the installation efficiency and the stability of the electric tracing band are improved.

Description

technical field [0001] The invention relates to a self-fixing electric heating cable, which belongs to the technical field of electric cables. Background technique [0002] Electric heating cable is composed of conductive polymer and two parallel metal wires and insulating sheath. Its characteristic is that the conductive polymer has a high positive temperature coefficient and is connected in parallel with each other. It can automatically adjust the output power with the temperature change of the heated system, and automatically limit the heating temperature. It can be arbitrarily shortened or connected to a certain range for use. , and allows multiple overlapping without high temperature hot spots and burning concerns. The electric heating cable is a new generation of the only strip constant temperature electric heater. The resistivity of the heating element has a very high positive temperature coefficient "PTC" (Postive Temperature Coefficient) and is connected in parall...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention overcomes the existing defects, and provides a self-fixing electric heating cable, which can effectively solve the cumbersome fixing method of the electric heating cable at the present stage, which will cause damage to the structure of the electric tracing cable; Tropical cables are closely attached to the surface of the pipe, and the moisture or heat that will ooze out of the pipe surface cannot be dissipated, and they are all transferred to the electric heating cable, which shortens the service life of the electric heating cable.

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