Self-regulating electric heat tracing tape for high-temperature boiler

Abstract

The invention provides a self-regulating electric heat tracing tape for a high-temperature boiler, and relates to the technical field of electric heat tracing cable. The self-regulating electric heattracing tape for the high-temperature boiler comprises a core wire, a conductive plastic layer and an insulating layer; the outer side wall of the core wire is wrapped in the conductive plastic layer;the outer side wall of the conductive plastic layer is sleeved with an insulating layer; the outer side wall of the insulating layer is wrapped in a woven shielding layer; a waterproof layer is disposed between the insulating layer and the woven shielding layer; the outer side of the woven shielding layer is wrapped in a heat insulating layer; the outer side wall of the heat insulating layer is sleeved with a protective cover; and the outer side wall of the protective cover is wrapped in an anti-corrosion layer. The self-regulating electric heat tracing tape overcomes the deficiencies in theprior art, is reasonable in design and compact in structure, can protect a boiler pipeline when used in cooperation with the boiler pipeline, is safe to use and easy to install, has a good heat tracing effect, and avoids freezing the boiler pipeline.

Description

technical field [0001] The invention relates to the technical field of electric heating cables, in particular to a self-limiting temperature electric heating cable for high-temperature boilers. Background technique [0002] The self-limiting temperature electric heating cable refers to the self-limiting temperature heating cable, which is the only belt-shaped constant temperature electric heater of the new generation. The resistivity of the heating element has a high positive temperature coefficient and is connected in parallel. It can automatically limit the temperature during heating, and automatically adjust the output power with the temperature of the heated body without any additional equipment. [0003] During the use of existing boilers, the boiler pipes are prone to freezing problems, which affect the normal use of the boiler. In recent years, with the application of self-limiting temperature heating cables, its characteristics have gradually been shown. In terms of...

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Problems solved by technology

[0003] During the use of existing boilers, the boiler pipes are prone to freezing problems, which affect the normal use of the boiler. In terms of boiler pipes, the electric heating cables currently used on boiler pipes have the disadvantages of unstable heat tracing and poor heat tracing effect, which brings a lot of trouble to the staff, so we propose a self-limiting temperature for high-temperature boilers. Electric heating cable

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