Energy-saving magnetic shielding device for induction heating crystal furnace

A technology of induction heating and magnetic shielding, applied in induction heating, magnetic field/electric field shielding, crystal growth, etc., can solve problems such as loss of energy, reduce energy efficiency, increase production cost, etc., and achieve the effect of avoiding loss and improving induction heating efficiency

Inactive Publication Date: 2013-10-02
SUN YAT SEN UNIV
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Problems solved by technology

Especially when growing high-temperature crystals, some areas of the furnace wall even exceed 100°C. This unavoidable defect will also lose a lot of energy
Taking the crystal growth industry as an example, electric energy accounts for more than 35% of the production cost. Therefore, the loss of a large amount of energy will greatly reduce energy efficiency and increase production costs.

Method used

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  • Energy-saving magnetic shielding device for induction heating crystal furnace
  • Energy-saving magnetic shielding device for induction heating crystal furnace
  • Energy-saving magnetic shielding device for induction heating crystal furnace

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific examples.

[0021] On the basis of the magnetic induction heating mechanism, the invention invents a magnetic shield to solve the problem that the alternating magnetic field generated by the induction coil wire cannot be concentrated on the heating target, and adds a magnetic shield structure to the induction coil to concentrate the energy in the magnet and guide it Among the target heating parts, the efficiency of induction heating is effectively improved, and the energy loss caused by components such as furnace walls is eliminated.

[0022] According to the different requirements of magnetic induction heating mechanisms for different applications (high-power induction heating equipment such as crystal growth), the present invention designs targeted special magnetic cores. In order to achieve the maximum convergence of electromagnetic energy and improve heating efficiency. Combined with...

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Abstract

The invention relates to an energy-saving magnetic shielding device for an induction heating crystal furnace. The energy-saving magnetic shielding device comprises a furnace and a magnetic induction heating mechanism arranged in the furnace, wherein a magnetic shielding structure is arranged between the furnace and the magnetic induction heating mechanism; the magnetic shielding structure comprises a magnetic bundle fence arranged at the periphery of the side wall of the magnetic induction heating mechanism and a magnetic bundle base arranged at the periphery of the bottom wall of the magnetic induction heating mechanism, and the magnetic bundle fence and the magnetic bundle base are both made from a magnetic conducting material. The energy-saving magnetic shielding device can effectively improve the energy efficiency and lower the manufacturing cost.

Description

technical field [0001] The invention relates to an energy-saving magnetic shielding device for an induction heating crystal furnace. Background technique [0002] Induction heating technology is widely used in metal smelting, crystal growth, welding, sintering, heat preservation and other instruments. When the equipment is running, the heating target is placed in the alternating magnetic field to generate eddy current, which causes the heating element to heat up. [0003] In the process of induction heating the crucible to control crystal growth, the strong eddy current generated by the crucible not only raises its temperature, but also generates an induced magnetic field in the crucible that is always opposite to the alternating magnetic field. The induced magnetic field will change the direction of the heating magnetic field, causing the heating magnetic field to distort or even bypass the crucible, and cannot pass through the crucible well. Moreover, in many special wor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/24H05K9/00C30B35/00
Inventor 王彪朱允中沈文彬蔡修奋唐芝瀚
Owner SUN YAT SEN UNIV
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