CN107666730A - A kind of factory's radiant tube - Google Patents
A kind of factory's radiant tube Download PDFInfo
- Publication number
- CN107666730A CN107666730A CN201711010603.XA CN201711010603A CN107666730A CN 107666730 A CN107666730 A CN 107666730A CN 201711010603 A CN201711010603 A CN 201711010603A CN 107666730 A CN107666730 A CN 107666730A
- Authority
- CN
- China
- Prior art keywords
- pipe
- resistance wire
- heat resisting
- radiant tube
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 125000006850 spacer group Chemical group 0.000 claims abstract description 16
- 230000005855 radiation Effects 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 238000002791 soaking Methods 0.000 claims abstract description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009750 centrifugal casting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005495 investment casting Methods 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical group [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
Landscapes
- Resistance Heating (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention discloses a kind of factory's radiant tube, including radiation pipe shell, soaking zone and heater, the radiation pipe shell is straight pipe type, described radiation pipe shell one end is provided with flange, the heater includes heat resisting pipe, some ceramic spacer rings and resistance wire, some ceramic spacer rings are axially uniformly arranged along radiant tube shell, the heat resisting pipe is interspersed to be wound on ceramic spacer ring, the resistance wire is arranged in heat resisting pipe, the surface spraying of the resistance wire has one layer of refractory insulating layer, and the resistance wire is provided at both ends with binding post.The advantage of the invention is that：A resistance wire of the invention is arranged in a heat resisting pipe, and fills heat resisting pipe rest by dielectric, and resistance wire is provided at both ends with binding post, and heat resisting pipe is interspersed to be wound on ceramic spacer ring, is easily installed, is reduced manufacturing cost.
Description
Technical field
The present invention relates to a kind of radiant tube, more particularly to a kind of factory's radiant tube.
Background technology
Radiant tube be in the industries such as metallurgy, medicine, tobacco, weaving, food commonly use a kind of heater, prior art
In, radiant tube largely realizes heating using electric energy or high-quality gaseous fuel.Existing electrical heating radiant tube used for industrial furnace,
Difference variation is big, and radiant tube is easy to damage.And lack the production capacity of production high energy efficiency radiant tube now.Radiant tube at present
Main to manufacture straight tube and hot investment casting using centrifugal casting to manufacture bend pipe, the straight tube wall thickness minimum of centrifugal casting manufacture will reach
To more than 8mm, the bend pipe wall thickness minimum of hot investment casting manufacture will reach more than 10mm.Such radiant tube weight weight, into
This height, heat utilization rate are low, energy expenditure is high and elongation percentage is low, and flexural deformation and cracking are easily produced under the condition of high temperature.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of factory's radiant tube simple in construction, heating effect is good.
In order to solve the above technical problems, the technical scheme is that：A kind of factory's radiant tube, its innovative point are：
Including radiation pipe shell, soaking zone and heater, the radiation pipe shell is straight pipe type, and described radiation pipe shell one end is provided with
Flange, the heater include heat resisting pipe, some ceramic spacer rings and resistance wire, some ceramic spacer rings edge radiation pipe shells
Axially it is uniformly arranged, the heat resisting pipe is interspersed to be wound on ceramic spacer ring, and the resistance wire is arranged in heat resisting pipe, described
The surface spraying of resistance wire has one layer of refractory insulating layer, and the resistance wire is provided at both ends with binding post.
Further, the length of the resistance wire and the length of heat resisting pipe should be ensured that radiation pipe shell is stretched out on its head
Outside.
Further, the refractory insulating layer is magnesium oxide coating.
Further, the ceramic spacer ring shares 10.
The advantage of the invention is that：
（1）A resistance wire of the invention is arranged in a heat resisting pipe, and fills heat resisting pipe rest by dielectric,
Resistance wire is provided at both ends with binding post, and heat resisting pipe is interspersed to be wound on ceramic spacer ring, is easily installed, is reduced and be manufactured into
This；
（2）Be advantageous to improve the hot-face insulation performance of resistance wire in the surface spraying refractory insulating layer of resistance wire.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of structural representation of factory's radiant tube of the present invention.
Embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
As shown in figure 1, a kind of factory's radiant tube, including radiation pipe shell 1, soaking zone 2 and heater, radiate pipe shell
1 is straight pipe type, and radiation pipe shell 1 one end is provided with flange 3, and heater includes heat resisting pipe 4, some ceramic spacer rings 5 and resistance
Silk 6, some ceramic spacer rings 5 are axially uniformly arranged along radiation pipe shell 1, and ceramic spacer ring 5 shares 10, heat resisting pipe 4 it is interspersed around
System is on ceramic spacer ring 5, and resistance wire 6 is arranged in heat resisting pipe 4, and the surface spraying of resistance wire 6 has one layer of refractory insulating layer 7,
Refractory insulating layer 7 is magnesium oxide coating, and resistance wire 6 is provided at both ends with binding post 8, the length and heat resisting pipe 4 of resistance wire 6
Length should be ensured that its head stretch out radiation pipe shell 1 outside.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The skill of the industry
For art personnel it should be appreciated that the present invention is not limited to the above embodiments, described in above-described embodiment and specification is explanation
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (4)
- A kind of 1. factory's radiant tube, it is characterised in that：Including radiation pipe shell, soaking zone and heater, outside the radiant tube Shell is straight pipe type, and described radiation pipe shell one end is provided with flange, the heater include heat resisting pipe, some ceramic spacer rings and Resistance wire, some ceramic spacer rings are axially uniformly arranged along radiant tube shell, the heat resisting pipe is interspersed be wound on ceramics every On circle, the resistance wire is arranged in heat resisting pipe, and the surface spraying of the resistance wire has one layer of refractory insulating layer, the resistance Silk is provided at both ends with binding post.
- A kind of 2. factory's radiant tube according to claim 1, it is characterised in that：The length and heat resisting steel of the resistance wire The length of pipe should be ensured that its head is stretched out outside radiation pipe shell.
- A kind of 3. factory's radiant tube according to claim 2, it is characterised in that：The refractory insulating layer applies for magnesia Layer.
- A kind of 4. factory's radiant tube according to claim 3, it is characterised in that：The ceramic spacer ring shares 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010603.XA CN107666730A (en) | 2017-10-26 | 2017-10-26 | A kind of factory's radiant tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010603.XA CN107666730A (en) | 2017-10-26 | 2017-10-26 | A kind of factory's radiant tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107666730A true CN107666730A (en) | 2018-02-06 |
Family
ID=61097727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711010603.XA Pending CN107666730A (en) | 2017-10-26 | 2017-10-26 | A kind of factory's radiant tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107666730A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005006812A1 (en) * | 2003-07-10 | 2005-01-20 | Sandvik Intellectual Property Ab | An electric heating element that includes a radiant tube. |
| CN102769946A (en) * | 2011-05-05 | 2012-11-07 | 江苏金达电热电器有限公司 | Radiant tube for industrial furnace |
| CN102769942A (en) * | 2011-05-05 | 2012-11-07 | 江苏金达电热电器有限公司 | Radiant tube for industrial furnace |
| CN105323883A (en) * | 2014-07-30 | 2016-02-10 | 江苏金达电热电器有限公司 | High-power radiant tube |
-
2017
- 2017-10-26 CN CN201711010603.XA patent/CN107666730A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005006812A1 (en) * | 2003-07-10 | 2005-01-20 | Sandvik Intellectual Property Ab | An electric heating element that includes a radiant tube. |
| CN102769946A (en) * | 2011-05-05 | 2012-11-07 | 江苏金达电热电器有限公司 | Radiant tube for industrial furnace |
| CN102769942A (en) * | 2011-05-05 | 2012-11-07 | 江苏金达电热电器有限公司 | Radiant tube for industrial furnace |
| CN105323883A (en) * | 2014-07-30 | 2016-02-10 | 江苏金达电热电器有限公司 | High-power radiant tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180206 |