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Improved heating element

A heating element and heating element technology, applied in the direction of heating element material, heating element shape, etc., can solve problems such as limiting the scope of use and not meeting the needs of manufacturers, and achieve the effects of wide application range, reasonable structure, and reduced production costs

Inactive Publication Date: 2016-02-10
江苏金达电热电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, its scope of use is severely limited, and it is increasingly unable to meet the needs of the majority of manufacturers.

Method used

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  • Improved heating element

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Embodiment Construction

[0012] Such as figure 1 As shown, an improved heating element of the present invention includes a heating element, a straight tube casing 1 arranged outside the heating element for sealing and protecting the heating element, and a heat preservation section 2 arranged behind the heating element. One end of the casing 1 is The closed end, the other end is an open end, and a flange 3 is provided at the open end. The heating element includes two electrode lead-out rods 4 protruding from the shell, a thermocouple 5, multiple resistance wires 8 connected in series, and multiple resistance wires 8 along the shell. 1 The ceramic collar 6 is evenly arranged in the axial direction, and the resistance wire 8 is a high-resistance electrothermal alloy coiled into a spiral shape. The resistance wire 8 is designed to be coiled into a spiral shape. On the one hand, it can increase the surface area of ​​the resistance wire and reduce the load on the surface of the resistance wire. It can be ap...

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Abstract

The invention discloses a heating device and particularly relates to an improved electric heating element. The technical scheme adopted by the improved heating element is that the improved heating element comprises a heater, a straight tube-type shell and a thermal insulation segment, wherein the straight tube-type shell is arranged outside the heater and used for sealing and protecting the heater; one end of the shell is a closed end and the other end of the shell is an open end, and the open end is provided with a flange; the heater comprises two electrode lead-out rods extending out of the shell, a thermocouple, a plurality of resistance wires connected in series, and a plurality of ceramic collars evenly distributed in the axial direction of the shell; and the resistance wires are high-resistance electrical heating alloy coiled spirally. The improved heating element has advantages of being reasonable in structure, capable of heating various industrial furnaces, wide in usage range, suitable for being used in high-voltage and large-power environments, low in a use failure rate, long in service life, and beneficial to reduction in production cost of enterprises.

Description

technical field [0001] The present invention relates to a heating device, in particular to an improved electric heating element. Background technique [0002] The heating element is a heating device commonly used in metallurgy, medicine, tobacco, textile, food and other industries. In the prior art, most of the heating elements are heated by high-quality electric energy. The existing electric heating elements are composed of high-resistance electric heating alloy wires connected in series through disk insulation, and then protected by high-temperature heat-resistant steel pipes. The heat emitted by the resistance wires is heated through the conduction of heat-resistant steel pipes. Electric heating elements currently on the market generally use high-resistance electrothermal alloy rods with smooth surfaces as their resistance wires. The resistance wires of this structure have a large load on the surface of the resistance wire and can only be used in low-voltage, low-power o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/42H05B3/10
Inventor 倪高金
Owner 江苏金达电热电器有限公司
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