CN2489541Y - Non-isothermal electric heating tube - Google Patents
Non-isothermal electric heating tube Download PDFInfo
- Publication number
- CN2489541Y CN2489541Y CN 01248183 CN01248183U CN2489541Y CN 2489541 Y CN2489541 Y CN 2489541Y CN 01248183 CN01248183 CN 01248183 CN 01248183 U CN01248183 U CN 01248183U CN 2489541 Y CN2489541 Y CN 2489541Y
- Authority
- CN
- China
- Prior art keywords
- heating wire
- temperature
- metal tube
- utility
- electrothermal tube
- 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.)
- Expired - Fee Related
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- Resistance Heating (AREA)
Abstract
The utility model discloses a cartridge heater with different temperatures, which has the advantages of reasonable structure. The axis of the cartridge heater can be designed to achieve different temperatures on the basic of actual needs and satisfy the special needs of electrical products presenting a demand on such aspect. The utility model consists of an outer metal tube 1, a heating wire 2 and insulating end plugs 3. The utility model is characterized in that: the heating wire 2 is positioned in an insulating magnesia 4 which is filled in the outer metal tube. The heating wire 3 winded axially in the outer metal tube has different densities and such density is higher at the high temperature zone and lower at the low temperature zone. When being pulled straight, the heating wire is respectively connected to the screw electrodes 5 at the centers of the insulating end plugs at the two ends of the cartridge heater.
Description
The utility model belongs to a kind of electric heating element.Specifically a kind of electrothermal tube of axial temperature inequality.
Present electrothermal tube is to fill insulation sand in metal tube, is embedded with heating wire in the sand.Generally except that the electrothermal tube two ends were cold junction, its active section all was the high-temperature region to this electrothermal tube, and temperature is identical basically, and at present in some electric equipments such as diet baking box, according to the baking requirement.Wish that the electrothermal tube axial temperature is variant.
The utility model purpose is to disclose a kind of not isothermal electrothermal tube, and its advantage is rational in infrastructure, electrothermal tube axially can design different temperatures as required, can satisfy has this to require the special requirement of electric equipment products.
The utility model is made up of metal outer pipe 1, heating wire 2 and insulation plug 3.It is characterized in that: be embedded with heating wire 3 in the insulation magnesia 4 of in metal outer pipe, filling.Described heating wire 3 twines the density difference at axial its of metal tube, and high-temperature region density is big, and low-temperature space density is little.Stretching until heating wire, heating wire links to each other with the screw electrode 5 at insulation plug center, electrothermal tube two ends respectively.
The another kind of execution mode of the utility model is: its winding screw loop diameter difference of the heating wire of the axial winding in metal tube.The temperature height that the spiral coil diameter is big, the temperature that the spiral coil diameter is little is low.
Fig. 1 is the utility model example structure figure.
The utility model is wound in spiral helicine heating wire and is positioned at metal tube lumen centers place in metal tube, fill insulation sand between metal tube and the heating wire, requiring low-temperature zone, heating wire is twined the number of turns in unit length tail off, even do not twine line stretchingly, this section temperature is just low.And requiring the temperature upper sector, and the unit length of heating wire to be twined the number of turns become many, i.e. winding is closeer, and this section temperature is higher.Form the axial of electrothermal tube, temperature distributing disproportionation in the time of in working order.Can design on demand, realize not isothermal.Realize that anisothermal method except that twining variable density, can make the diameter difference that is wound in the helical form circle, the temperature height that diameter is big, the temperature that diameter is little is low.
The utility model can satisfy the not needed extraordinary electrothermal tube of isothermal design of extraordinary electrical equipment.
Claims (2)
1. isothermal electrothermal tube not, form by metal outer pipe (1), heating wire (2) and insulation plug (3), it is characterized in that: be embedded with heating wire (3) in the insulation magnesia (4) of in metal outer pipe (1), filling, described heating wire (3) twines the density difference at axial its of metal tube, high-temperature region density is big, low-temperature space density is little stretching until heating wire, and heating wire links to each other with the screw electrode (5) at insulation plug center, electrothermal tube two ends respectively.
2. not isothermal electrothermal tube as claimed in claim 1 is characterized in that its winding screw loop diameter difference of heating wire in the axial winding of metal tube, the temperature height that the spiral coil diameter is big, and the temperature that the spiral coil diameter is little is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248183 CN2489541Y (en) | 2001-06-13 | 2001-06-13 | Non-isothermal electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248183 CN2489541Y (en) | 2001-06-13 | 2001-06-13 | Non-isothermal electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2489541Y true CN2489541Y (en) | 2002-05-01 |
Family
ID=33658892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01248183 Expired - Fee Related CN2489541Y (en) | 2001-06-13 | 2001-06-13 | Non-isothermal electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2489541Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100382659C (en) * | 2003-07-25 | 2008-04-16 | 王文超 | High temperature electrothermal pipe |
| CN102271428A (en) * | 2010-06-03 | 2011-12-07 | 单昶 | Solid medium heat transfer roller |
| CN103574893A (en) * | 2013-11-12 | 2014-02-12 | 成都科盛石油科技有限公司 | Circulating heating device |
| CN103591631A (en) * | 2013-11-12 | 2014-02-19 | 成都科盛石油科技有限公司 | Heater for camping house |
| CN105842006A (en) * | 2016-05-11 | 2016-08-10 | 中国大唐集团科学技术研究院有限公司华东分公司 | Primary air dust pipe monitoring sampling device and accurate sampling control method for sampling pipe of primary air dust pipe monitoring sampling device |
| CN105929872A (en) * | 2016-05-16 | 2016-09-07 | 中国电子科技集团公司第四十研究所 | Temperature control device and method for medium temperature surface radiation source |
| CN112393593A (en) * | 2020-11-26 | 2021-02-23 | 重庆观致科技有限公司 | Heating rod and hearth structure for improving uniformity of furnace temperature |
-
2001
- 2001-06-13 CN CN 01248183 patent/CN2489541Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100382659C (en) * | 2003-07-25 | 2008-04-16 | 王文超 | High temperature electrothermal pipe |
| CN102271428A (en) * | 2010-06-03 | 2011-12-07 | 单昶 | Solid medium heat transfer roller |
| CN103574893A (en) * | 2013-11-12 | 2014-02-12 | 成都科盛石油科技有限公司 | Circulating heating device |
| CN103591631A (en) * | 2013-11-12 | 2014-02-19 | 成都科盛石油科技有限公司 | Heater for camping house |
| CN103574893B (en) * | 2013-11-12 | 2016-01-13 | 成都科盛石油科技有限公司 | Heater capable of circulation |
| CN105842006A (en) * | 2016-05-11 | 2016-08-10 | 中国大唐集团科学技术研究院有限公司华东分公司 | Primary air dust pipe monitoring sampling device and accurate sampling control method for sampling pipe of primary air dust pipe monitoring sampling device |
| CN105929872A (en) * | 2016-05-16 | 2016-09-07 | 中国电子科技集团公司第四十研究所 | Temperature control device and method for medium temperature surface radiation source |
| CN112393593A (en) * | 2020-11-26 | 2021-02-23 | 重庆观致科技有限公司 | Heating rod and hearth structure for improving uniformity of furnace temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |