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Skin electrical heating part

An electric heating element and skin-integrated technology, which is applied in the field of electric heating elements based on the principle of electric heating, can solve problems such as electrification, roughness, and danger of the shell

Inactive Publication Date: 2008-02-20
赵放
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this structure can be made into an industrial electric heating element that is longer, thicker, more efficient, and easy to install and replace, its shell (that is, the metal tube) is charged when it is working; it may cause electric shock when the human body is in direct contact. ; so it is very dangerous, even if many electric heating elements are welded into a high-power electric heater in the form of a flange, or changing the electrical connection will cause more personal danger
It will be more dangerous if it is in an explosive, gaseous or explosive dusty place

Method used

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Examples

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Embodiment Construction

[0041] An industrial electric heating element is used. The specification of 20# carbon steel pipe is 18*3.5mm and the length is 7.5m. There is a right-handed spiral wire in the hole. The material is Cr20Ni80, 1.3mm, and the resistivity is 1.05Ωmm. 2 / m, the outer diameter of the spiral wire is 5mm, the pitch is 8.4mm, the unfolded length is 8.16mm, and the DC resistance before production is 6.45. According to the structure in Figure 1, two lead-out rods are welded at both ends, one lead-out rod is connected to the alloy heating wire, the other lead-out rod is connected, the metal plug is welded to the end of the carbon steel pipe, and the lead-out rod connected to the alloy heating wire is connected to the power frequency power supply Phase line, the surface of the first end of the carbon steel pipe is connected to the neutral line of the power frequency power supply to form an electric circuit to generate heat. The equal length is positioned in the middle of the carbon ste...

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Abstract

The utility model relates to a skin-effect heating component, comprising a carbon steel tube, a plurality of alloy heating wires, a plurality of magnesia powder, a leading bar, metal plug and an anti-corrosive stainless steel bushing, Which is applied for various large electric heating equipments in petrol, chemical, electric power and similar industries. The utility model has the advantages of simple structure, high reliability, long life and that no current passes through the whole surface of the carbon steel tube, thus the insulation problem of cluster large-power electric heating component is solved, enabling wide market prospect.

Description

technical field [0001] The invention relates to an electric heating element based on the principle of electric heating, especially an electric heating element integrating skin effect, proximity effect and Joule effect. Background technique [0002] At present, the "Metal Tubular Heating Element JB / T2379-93" mechanical industry standard issued by the National Industrial Heating Equipment Standardization Technical Committee stipulates the requirements for its use, replacement, reliability, durability, safety, economy and energy saving. In addition to the technical requirements for industrial heating elements, high power, long length, and requirements for various high-temperature conditions or corrosion-resistant media should be proposed. Among them, the heating element in the form of double-ended leads in Section 3.1.1b, and one end of which is connected to the shell is a kind of A more suitable ideal structure (for understanding, see Figure 1). Although this structure can be...

Claims

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Application Information

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IPC IPC(8): H05B3/44H05B3/02
Inventor 赵放
Owner 赵放
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