Efficient and reliable induction heating device

Abstract

The invention discloses an efficient and reliable induction heating device. The device comprises a metal heating body internally provided with a hot water cavity, an isolation part arranged on the outer side face of the metal heating body in a sleeving manner, an insulation heat conduction part, an electromagnetic induction coil, a rotating part and a spiral part; a heating cavity is arranged between the inner side face of the isolation part and the outer side face of the metal heating body; the insulation heat conduction part is made of heat conduction materials, and a preheating cavity is formed between the insulation heat conduction part and the isolation part; the electromagnetic induction coil is wound on the insulation heat conduction part; the first end of the preheating cavity communicates with a cold water pipe, the second end of the preheating cavity communicates with the second end of the heating cavity, the first end of the heating cavity communicates with the first end ofthe hot water cavity, and the second end of the hot water cavity communicates with a hot water pipe; the rotating part is arranged in the heating cavity, the spiral part is arranged on the outer sideface of the metal heating body in a sleeving manner, and the tail end of the spiral part is fixedly connected with t he rotating part; and water scales generated on the surface of the metal heating body can be completely eradicated, failures caused by the high temperature of the electromagnetic induction coil can be reduced, and the electric energy conversion efficiency, the heat energy utilization rate and the heating speed are improved.

Description

technical field [0001] The invention relates to induction heating technology, in particular to an efficient and reliable induction heating device. Background technique [0002] Taking the electromagnetic water heater as an example, the electromagnetic water heater is a typical induction heating device, which uses high-frequency current to generate an electromagnetic field through the electromagnetic induction coil, and the heating element (for example, most heating elements use metal tubes) in the electromagnetic field induces eddy current heating, thereby Let the cold water in contact with the metal pipe be heated. There are at least two defects in existing electromagnetic water heaters: first, scale will still deposit on the surface of the metal pipe during long-term use, thereby affecting the heat exchange capacity of the heating pipe and even causing local overheating, resulting in dry-burning damage to the electromagnetic induction coil The second is that due to variou...

AI Technical Summary

Problems solved by technology

[0005] The invention proposes an efficient and reliable induction heating device. On the one hand, the descaling mechanism for automatic descaling is used to completely eliminate the generation of scale; The temperature of the electromagnetic induction coil is low during operation to achieve reliable and stable work, and to improve energy conversion efficiency and heating speed to solve the problem of poor reliability and energy utilization due to the dry burning damage of the electromagnetic induction coil during the working process of the existing technology lower technical issues

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