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Inductor for high-temperature induction heating furnace and induction heating furnace

An induction heating furnace and inductor technology, applied in the field of inductors, can solve the problems such as the inability of the furnace temperature to reach 3000 ℃ uniformly, the inability to use conductive powder insulation materials, and the reduction of the residual heat temperature of the furnace, so as to strengthen the overall cooling. effect, improve the service life, reduce the effect of excessive burning

Pending Publication Date: 2022-07-01
株洲弗拉德科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this electric furnace is used for melting permanent magnetic alloys and has low temperature requirements. Since the heating coil of this type is not wrapped with an insulating casting layer, conductive powder insulation materials cannot be used, and the temperature in the furnace can not reach 3000°C uniformly. The purpose of the cooling water pipe is to reduce the waste heat temperature in the furnace after the liquid permanent magnetic alloy is smelted, to prepare for the next furnace of permanent magnetic alloy smelting, or to adjust the temperature of the electromagnetic coil during heating, which has no effect on raising the furnace temperature. actual effect

Method used

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  • Inductor for high-temperature induction heating furnace and induction heating furnace
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  • Inductor for high-temperature induction heating furnace and induction heating furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An inductor for a high temperature induction heating furnace, used in a vertical high temperature induction heating furnace, such as Figure 4 shown. The middle of the furnace body of the heating furnace is the heating body 21, and the center of the heating body is the furnace chamber 50 for accommodating materials. The heating body 21 is in the shape of a barrel, and the outer side of the heating body 21 is provided with an insulation layer, including a sleeve insulation layer 22, an upper insulation layer 23 and a lower insulation layer 24. The insulation layer wraps the heating body 21, and the sleeve insulation layer 22 is wrapped in On the side of the heating body 21, a cover plate 2201 is provided on the top of the sleeve protection layer 22, the upper insulation layer 23 and the lower insulation layer 24 are respectively arranged above and below the heating body 21, the top of the furnace 50 is provided with an inner cover 2301, and the upper insulation layer 23 ...

Embodiment 2

[0033] like figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the heating coil 1 in the middle of the furnace body inductor has a large inter-turn gap, and the inter-turn gap in the middle is provided with two-way nested cooling coils, and the nested cooling coil 2 and nested cooling coils 2001. No cooling coil is provided between the turns at both ends of the heating coil 1 .

[0034] According to the size and change of the gap between the turns of the heating coil, the size and shape of the metal tube of the sleeve cooling coil can be adjusted to meet the different gaps between the turns of the heating coil. Alternatively, set one of the embedded cooling coil 2 and the embedded cooling coil 2001 as a long coil and the other as a short coil, and adjust the length of the embedded cooling coil to satisfy different heating coil turns.

[0035] In other embodiments, the sleeve-type cooling coil 2 is arranged in multiple paths and / or multiple sect...

Embodiment 3

[0037] like image 3 As shown, the difference between this embodiment and Embodiment 1 is that the inter-turn gap between the two ends of the inductor heating coil 1 is also larger, and a sleeve-type cooling coil 2 can be provided, and the sleeve-type cooling coil 2 exceeds the heating coil 1. The overhanging parts of the upper end surface and the lower end surface respectively form the upper cooling coil 3 and the lower cooling coil 4, that is, the sleeve type cooling coil 2 communicates with the upper cooling coil 3 and the lower cooling coil 4.

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Abstract

An inductor for a high-temperature induction heating furnace comprises a heating coil (1) and a bushing type cooling coil (2), and the heating coil (1) is a spiral coil with unequal turn intervals; the bushing type cooling coil (2) is spirally embedded in a turn-to-turn gap of the heating coil (1); both the heating coil (1) and the bushing type cooling coil (2) are metal pipes through which water flows, and the heating coil (1) is electrically connected with a power supply; the inductor further comprises a pouring layer (6), and the heating coil (1) and the bushing type cooling coil (2) are wrapped in the pouring layer (6). The inductor has the advantages that the heating temperature is uniform, the hearth temperature is high, the thickness of a pouring layer of the inductor is uniform, the inductor is not easy to crack, and the service life is long.

Description

technical field [0001] The invention relates to an inductor, in particular to an inductor for a high temperature induction heating furnace; the invention also relates to a high temperature induction heating furnace using the inductor. Background technique [0002] With the continuous development of science and technology, high temperature materials have higher and higher requirements for heat treatment temperature. Some high temperature materials hope that the heat treatment temperature can reach or exceed 3000 °C. Induction heating furnace is an ideal heat treatment equipment that can meet the requirements of 3000 °C heat treatment process. However, due to the unreasonable design of the inductor and other reasons in the existing induction heating technology, the furnace temperature cannot reach above 3000 °C. [0003] The utility model patent publication number CN203940735U discloses a permanent magnet alloy smelting electric furnace. In the utility model, a spiral cooling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B14/06F27B14/08F27D9/00H05B6/36H05B6/42
CPCF27B14/061F27B14/08F27D9/00H05B6/367H05B6/42F27B2014/066F27B2014/0837F27B2014/0843F27D2009/0021Y02P10/25
Inventor 言伟雄袁建陵
Owner 株洲弗拉德科技有限公司