Ultra-long pipeline electromagnetic induction heating device

Abstract

The invention relates to a heating device, in particular to an electromagnetic induction heating device for a super-long pipeline with reduced energy consumption and strong anti-interference ability. The ultra-long pipeline electromagnetic induction heating device includes a plurality of heating pipelines, the length of each heating pipeline is 6m to 10m, and two adjacent heating pipelines are connected together through flanges; the heating pipeline is equipped with electromagnetic induction heating Coil, the electromagnetic induction heating coil is connected to the three-phase power supply through the electromagnetic heater. The ultra-long pipeline electromagnetic induction heating device of the present invention, through the cooperation of the heating pipeline, the flange, the electromagnetic heater and the electromagnetic induction heating coil, etc., compared with the prior art, the length of the heating pipeline is more than ten times that of the prior art. The heating pipe is wound with an electromagnetic induction heating coil, and the heating is uniformly controlled by the electromagnetic heater. It has the characteristics of simple line layout, low energy loss and strong anti-interference ability.

Description

technical field [0001] The invention relates to a heating device, in particular to an electromagnetic induction heating device for a super-long pipeline with reduced energy consumption and strong anti-interference ability. The invention is applied to the heating and heat preservation of medium-voltage and high-voltage cross-linked cable production lines, and can also be used to heat heat-conducting oil and the like. Background technique [0002] The high-speed high-frequency high-voltage current flowing through the coil will generate a high-speed alternating magnetic field. When a ferrous container is placed on it, the surface of the container will cut the alternating magnetic force lines and generate alternating current and eddy current at the metal part of the bottom of the container. The iron atoms at the bottom of the container move at high speed and irregularly, and the atoms collide and rub against each other to generate heat energy. So as to play the effect of heatin...

AI Technical Summary

Problems solved by technology

This method fundamentally solves the problem of low thermal efficiency of electric heating sheets, electric heating coils and other resistive heating through heat conduction.

[0003] The existing traditional resistance heating method has the disadvantages of high energy consumption, high failure rate, high maintenance cost, and inaccurate temperature control and large deviation

[0004] With the existing electromagnetic induction heating technology, the heating temperature zone is shorter than 500mm and the diameter of the workpiece is less than 300mm. Multi-temperature zone heating is implemented for super-long pipelines, and the equipment is complex. The control circuit is complicated, the cost is high, and the failure rate is high.

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