High-voltage fused salt electric heater filled with solid aluminum oxide

An electric heater and aluminum oxide technology, applied in the direction of ohmic resistance heating parts, heating element shape, etc., can solve the problem that the damaged resistance wire cannot be replaced

Pending Publication Date: 2022-08-02
BEIJING UNIV OF TECH
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Problems solved by technology

[0003] The object of the present invention is to provide a high-voltage molten salt electric heater filled with solid alumina. In order to prevent high-voltage breakdown, the electric heater uses alumina rods as protective filling, and can be heated with a voltage of 10kV; Optimized design, each part is independent of each other, which effectively solves the problem that the damaged resistance wire cannot be replaced

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  • High-voltage fused salt electric heater filled with solid aluminum oxide
  • High-voltage fused salt electric heater filled with solid aluminum oxide
  • High-voltage fused salt electric heater filled with solid aluminum oxide

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Embodiment Construction

[0019] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solutions of the present invention are now described in detail below, but should not be construed as limiting the scope of the present invention. The content shown in the figure is only a schematic diagram and does not represent the final scale and structure.

[0020] As shown in the figure, a high-voltage molten salt electric heater filled with solid alumina includes an upper copper rod lead 1, an upper alumina rod plug 2, a nickel-chromium alloy resistance wire 3, a finned sleeve 4, an alumina rod Filling protection tube 5 , lower copper rod lead 6 , lower alumina plug 7 , U-shaped copper rod lead 8 , U-shaped sleeve 9 . The upper copper rod lead 1 is provided with threads, and is connected with the upper alumina rod plug 2 through threads; the upper alumina rod plug 2 has a threaded hole in the middle, which is connected with the...

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Abstract

The invention discloses a high-voltage fused salt electric heater filled with solid aluminum oxide, and belongs to the technical field of heating. The electric heater is composed of an upper copper rod lead, a lower copper rod lead, an upper aluminum oxide rod plug, a lower aluminum oxide rod plug, an aluminum oxide rod protection filler, a nichrome resistance wire, a fin sleeve, a U-shaped copper rod lead and a U-shaped sleeve. The upper copper rod lead is in threaded connection with the upper aluminum oxide rod plug and the nichrome resistance wire; the upper aluminum oxide rod plug is in threaded connection with the fin sleeve; the lower aluminum oxide rod plug is in threaded connection with the fin sleeve and the U-shaped sleeve; the aluminum oxide rod protection filler plays a role in fixing the position of the resistance wire and preventing high-voltage breakdown; the fin sleeve plays a role in increasing heat dissipation, and longitudinal fins or circular fins can be adopted; aluminum oxide powder is filled between the U-shaped copper rod lead and the U-shaped sleeve to prevent high-voltage breakdown.

Description

technical field [0001] The invention designs a high-voltage molten salt electric heater filled with solid alumina, which belongs to the field of valley electricity utilization and molten salt electric heating. Background technique [0002] Valley electricity heat storage refers to the use of electricity as energy to heat the heat storage medium during the low electricity consumption period, and the energy is stored in the heat storage device. Molten salt energy storage can be used for industrial steam supply or central heating. At present, most electric heaters use 380V voltage for heating. In the field of valley electricity heat storage, it is difficult to meet the electric heating demand of more than 1000kW. The use of 10kV voltage heating can meet the heating power demand; the current electric heater encounters the resistance wire burnout situation. Only the whole heating tube can be replaced, and the cost is high. In summary, the current electric heaters are difficult t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/52H05B3/02
CPCH05B3/52H05B3/02Y02E60/14
Inventor 吴玉庭张翼张灿灿鹿院卫
Owner BEIJING UNIV OF TECH
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