Electromagnetic induction heating roll

Abstract

The invention belongs to a heating roll, in particular relates to an electromagnetic induction heating roll with a high-frequency power supply serving as a heating power supply. The electromagnetic induction heating roll comprises a roll in a hollow structure, a central pipe coaxially arranged along the roll and a coil arranged on the inner side of the roll. The roll is assembled with the central pipe in a rotating mode, a heating coil framework is fixed on the central pipe, a longitudinal section of the heating coil framework is in an annular shape, the heating coil framework comprises fixed plates and support plates, wherein the fixed plates are distributed at intervals along the radial direction and extend along the axial direction, and the support plates are connected between the fixed plates and the central pipe. High-temperature-resistant strand wires are distributed on the outer surfaces of the fixed plates in a coil mode along the spiral direction of a clip from outside to inside, the high-temperature-resistant strand wires are in electric series connection, and the head ends and the tail ends of the high-temperature-resistant strand wires are led out from a pipe cavity of the central pipe to be connected with the high-frequency power supply. The electromagnetic induction heating roll solves the problem that a long heating roll with a large diameter is not appropriately manufactured in the prior art, and has the advantages of being reasonable in structural design, convenient to install and maintain, suitable for manufacture of the long heating roll with the large diameter and the like.

Description

technical field [0001] The invention belongs to a heating roller, in particular to an electromagnetic induction heating roller using a high-frequency power supply as a heating power supply. Background technique [0002] With the rapid development of modern electronic technology, high-quality power electronic devices have appeared one after another, which has promoted the development of electromagnetic induction technology, especially in the field of power supply, and the high-frequency heating technology used in industry has become a reality. At present, high-frequency electromagnetic induction heating has been Widely used in various fields of industry. [0003] Domestically produced heat rollers mainly use steam heating, heat transfer oil heating, electric heating tube heating, resistance wire heating, far-infrared heating, etc. These methods have many disadvantages compared with electromagnetic heating. Domestic manufacturers have been engaged in the research and producti...

AI Technical Summary

Problems solved by technology

[0005] There are some problems with the coil mode heater currently used, and it is not particularly suitable for rollers with large diameter and circumference. According to the data in the industry expo, the diameter of the electromagnetic heating roller currently on the market is less than 400mm

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