Fin separating-sheet type helical radiant tube

A spacer type and radiant tube technology, which is applied in the field of electrothermal radiant tubes, can solve the problems of electrothermal radiant tube damage, breakdown of radiant tube sleeves, easy cracking and fragility, etc., and achieve the effect of increasing the heating area

Inactive Publication Date: 2016-06-29
安徽永成电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the traditional radiant tube insulation support frame, white corundum, cordierite or high alumina are used as insulation materials. Although they have excellent temperature resistance and insulation performance, they are easily broken and brittle due to rapid cooling and rapid heating under high t

Method used

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  • Fin separating-sheet type helical radiant tube

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Embodiment Construction

[0010] Such as figure 1 As shown, a finned spacer type spiral radiant tube is composed of a corundum base 1, a central tie rod 2, a heat-resistant steel support piece 3, a flat belt high-temperature electric heating element 4, a corundum spacer 5, and a corundum ceramic circle. plate 6 and conductive bolts 7, one end of the center tie rod 2 is vertically installed on the corundum base 1, the heat-resistant steel support piece 3 is vertically installed on the center tie rod 2, and the heat-resistant steel support piece 3 is provided with several , between the heat-resistant steel support piece 3 and the heat-resistant steel support piece 3, several flat belt type high-temperature electric heating elements 4 are arranged. A corundum ceramic disc 6 is installed on one side of the spacer 5 , and a conductive bolt 7 is installed on one side of the corundum ceramic disc 6 .

[0011] Specific implementation: several insulating spacers 41 are arranged on the flat strip type high-temp...

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PUM

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Abstract

The invention discloses a fin separating-sheet type helical radiant tube. The fin separating-sheet type helical radiant tube comprises a corundum base, a central pull rod, multiple thermal-resistant steel supporting sheets, multiple flat-band type high-temperature electrical heating elements, corundum separating sheets, corundum ceramic circular disks and conductive bolts, wherein one end of the central pull rod is vertically mounted on the corundum base; the thermal-resistant steel supporting sheets are vertically mounted on the central pull rod; the multiple flat-band type high-temperature electrical heating elements are arranged between the thermal-resistant steel supporting sheets; two corundum separating sheets are mounted at the other end of the central pull rod; the corundum ceramic circular disks are mounted on one side of the corundum separating sheets; and conductive bolts are mounted on one side of the corundum ceramic circular disks. According to the fin separating-sheet type helical radiant tube, the original electrical heating alloy wires are changed into the electrical heating bands with the purpose of enlarging the heating areas of the electrical heating elements without changing the outline dimensions of the electrical heating radiant pipes.

Description

technical field [0001] The invention relates to an electrothermal radiation tube, in particular to a finned spacer type spiral radiation tube. Background technique [0002] In view of the disadvantages of poor process quality and low efficiency of the old-fashioned heat treatment furnace, the application of the electric radiant tube has changed the traditional heating method and made a leap forward in the reform of the workpiece heat treatment. Electrothermal radiant tubes have been widely used in many heat treatment fields such as sealed box-type resistance furnaces, rotary hearth furnaces, single row furnaces and cycle furnaces. [0003] In the 1990s, our company conducted in-depth research on electric heating radiant tubes and heat treatment furnaces, and obtained a large number of foreign materials and information from the United States, Germany, Japan, etc. After many tests and researches, the performance and structure of domestic and foreign electric heating radiation ...

Claims

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Application Information

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IPC IPC(8): H05B3/64
CPCH05B3/64
Inventor 曹永诚
Owner 安徽永成电气有限公司
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