CN101686583A - Coreless electric-heating radiant tube heating device - Google Patents
Coreless electric-heating radiant tube heating device Download PDFInfo
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- CN101686583A CN101686583A CN200910181663A CN200910181663A CN101686583A CN 101686583 A CN101686583 A CN 101686583A CN 200910181663 A CN200910181663 A CN 200910181663A CN 200910181663 A CN200910181663 A CN 200910181663A CN 101686583 A CN101686583 A CN 101686583A
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- radiant tube
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- heating device
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Abstract
The invention relates to a radiant tube heating device for heating an industrial furnace, in particular to a coreless electric-heating radiant tube heating device. The main body of the radiant tube isa double-end type; the wall thickness of a leading-out part of a furnace lining is greater than that of a hearth part; a heat insulation fiber mat for heat insulation is used in the leading-out part;the two ends of the radiant tube are fixed with a furnace body by flanges and are isolated by insulation mats; and connecting terminals are connected with the flanges. The radiant tube is a corelesselectric-heating radiant tube; a radiant tube shell directly emits heat to heat the hearth so as to reduce a transfer link of heat quantity without the phenomena that a resistance wire heating body isburnt, is in short circuit and even breaks down the radiant tube, reduce the manufacturing cost, the maintenance cost in the practical production and the phenomena, such as abnormal production orderbrought by regular maintenance and the like.
Description
Technical field:
The present invention relates to a kind of radiant tube heater of industrial furnace heating usefulness, particularly a kind of coreless electric-heating radiant tube heating device.
Background technology:
Existing used for industrial furnace electric heating radiant tube; all be that the high-resistance electrothermic alloy silk is by porcelain dish insulation serial connection; use high-temperature heat-resistance steel pipe (being radiant tube) protection to combine again; the heat that resistance wire sends will be by the conduction of heat resisting steel radiant tube; radiation of burner hearth is heated; the outer burner hearth of resistance wire in the radiant tube and radiant tube must form a very big temperature difference like this; could radiate the resistance wire evolution of heat; temperature difference large radiation more is fast more; the big more resistance wire of the temperature difference is easy of more overheated scaling loss; even short circuit connects radiant tube and damages together; the radiant tube that electric heating element and heat resisting steel are made itself is exactly national rare material, costs an arm and a leg, and the main maintenance cost of industrial furnace is exactly an electrical heating elements; therefore the quality that directly influences industrial furnace useful life and the maintenance cost of electric heating element influence the ordinary production order.
Summary of the invention:
In order to solve resistance wire that prior art exists because of overheated scaling loss short circuit, connect radiant tube and damage together, cause the maintenance cost height, the production order is undesired, and production efficiency reduces.The invention provides a kind of coreless electric-heating radiant tube heating device.
The technical solution used in the present invention is: a kind of coreless electric-heating radiant tube heating device, radiant tube is originally as double ended type, at the wall thickness of furnace lining extension wall thickness greater than the burner hearth part, heat insulation in the extension with the insulation fibre pad, the two ends of radiant tube are fixed by flange and body of heater, and are isolated by insulation cushion, and binding post connects with flange, described this radiant tube is a centreless electric heating radiant tube, is directly generated heat by the radiation shell burner hearth is heated.
Advantage of the present invention is: owing to adopted centreless electric heating radiant tube, saved the heating fuse that resistance wire is made, by the direct heating of radiation shell burner hearth is heated, reduced the conduction link of heat, there are not resistance wire heater scaling loss, short circuit, even puncture the phenomenon of radiant tube, reduced manufacturing cost, reduced the maintenance cost in the actual production, also reduced because phenomenon the such as often production order brought of maintenance is undesired.
Description of drawings:
The present invention is further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is a U type coreless electric-heating radiant tube heating device schematic diagram.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is a W type coreless electric-heating radiant tube heating device schematic diagram.
Fig. 4 is that the B of Fig. 3 is to view.
In the accompanying drawing: 1, radiant tube 2, insulation cushion 3, binding post 4, flange 5, insulation fibre
Embodiment:
As Fig. 1, shown in Figure 3,1 of radiant tube is as double ended type, can be the U type, also can be the W type, and described this radiant tube 1 is a centreless electric heating radiant tube, by the direct heating of radiation shell burner hearth is heated, at the wall thickness of furnace lining extension wall thickness greater than the burner hearth part, heat insulation with insulation fibre 5 pads in the extension, the two ends of radiant tube are fixed by flange 4 and body of heater, and by insulation cushion 2 isolation, binding post 3 connects with flange 4.
As Fig. 2, shown in Figure 4, this binding post 3 is connected with the low pressure incoming power.
Claims (3)
1, a kind of coreless electric-heating radiant tube heating device, radiant tube (1) is originally as double ended type, at the wall thickness of furnace lining extension wall thickness greater than the burner hearth part, heat insulation in the extension with insulation fibre (5) pad, the two ends of radiant tube are fixed by flange (4) and body of heater, and are isolated by insulation cushion (2), and binding post (3) connects with flange (4), it is characterized in that: described radiant tube (1) is a centreless electric heating radiant tube, is directly generated heat by the radiation shell burner hearth is heated.
2, coreless electric-heating radiant tube heating device according to claim 1 is characterized in that: described radiant tube (1) is U type or W type.
3, coreless electric-heating radiant tube heating device according to claim 1 is characterized in that: described binding post (3) is connected with the low pressure incoming power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910181663A CN101686583A (en) | 2009-07-17 | 2009-07-17 | Coreless electric-heating radiant tube heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910181663A CN101686583A (en) | 2009-07-17 | 2009-07-17 | Coreless electric-heating radiant tube heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101686583A true CN101686583A (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910181663A Pending CN101686583A (en) | 2009-07-17 | 2009-07-17 | Coreless electric-heating radiant tube heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101686583A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997806A (en) * | 2014-04-30 | 2014-08-20 | 洛阳八佳电气科技股份有限公司 | Graphite resistance type heating high-temperature heat treatment furnace heater |
| CN109443011A (en) * | 2018-12-17 | 2019-03-08 | 上海颐柏科技股份有限公司 | A kind of electric radiation device for heat-treatment furnace |
| CN109743800A (en) * | 2019-02-15 | 2019-05-10 | 江苏金达电热电器有限公司 | A kind of improved hollow tube electric heating radiant tube |
| CN109842967A (en) * | 2019-02-15 | 2019-06-04 | 江苏金达电热电器有限公司 | A kind of U-shaped hollow electric heating radiant tube |
-
2009
- 2009-07-17 CN CN200910181663A patent/CN101686583A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997806A (en) * | 2014-04-30 | 2014-08-20 | 洛阳八佳电气科技股份有限公司 | Graphite resistance type heating high-temperature heat treatment furnace heater |
| CN103997806B (en) * | 2014-04-30 | 2016-05-18 | 洛阳八佳电气科技股份有限公司 | A kind of graphite resistance formula heating high-temperature heat treatment stove heater |
| CN109443011A (en) * | 2018-12-17 | 2019-03-08 | 上海颐柏科技股份有限公司 | A kind of electric radiation device for heat-treatment furnace |
| CN109743800A (en) * | 2019-02-15 | 2019-05-10 | 江苏金达电热电器有限公司 | A kind of improved hollow tube electric heating radiant tube |
| CN109842967A (en) * | 2019-02-15 | 2019-06-04 | 江苏金达电热电器有限公司 | A kind of U-shaped hollow electric heating radiant tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100331 |