CN2418642Y - Tube-like electric heater - Google Patents
Tube-like electric heater Download PDFInfo
- Publication number
- CN2418642Y CN2418642Y CN 00232655 CN00232655U CN2418642Y CN 2418642 Y CN2418642 Y CN 2418642Y CN 00232655 CN00232655 CN 00232655 CN 00232655 U CN00232655 U CN 00232655U CN 2418642 Y CN2418642 Y CN 2418642Y
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- porcelain bead
- porcelain
- utility
- model
- 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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Abstract
The utility model discloses a tubular electric heater with a porcelain bead, which is mainly composed of a steel pipe with minor diameter, a porcelain bead which is arranged in the steel pipe, and a spring-shaped electrothermal wire which is arranged in the porcelain bead, wherein both ends of the electrothermal wire are exposed. After a lead-out bar penetrates through a concave and convex porcelain joint and an annular steel cushion ring, the lead-out bar is connected with the electrothermal wire. The annular steel cushion ring is welded with both ends of the steel pipe. A straight electric heater is bent into a desired shape and is welded with a fastening device or a junction box, and the utility model is formed. The utility model is suitable for heating gas, liquid and solid.
Description
The utility model relates to a kind of tubular electric heating.
The tubular electric heating of purposes such as the heated air of present industrial use, liquid and solid, adopt alumina powder as insulating material, because it is poor that alumina powder is recorded the back packing, heating wire is easily run into steel pipe walls in the bend pipe process, therefore needs through the mode of dwindling diameter of steel tube the packing of alumina powder to be increased.The process of the draw is more complicated, and order need be invested bigger special-purpose machine for shrinking.Generally need just can be reduced to the diameter of requirement, and make alumina powder that enough packings be arranged through the 4-5 procedure.And because the draw repeatedly increases the hardness of steel pipe, bend and must carry out annealing in process before being shaped, increased annealing operation again one, thereby made the cost increase of tubular electric heating.Because the temperature tolerance of alumina powder is relatively poor, makes the heating-up temperature scope of electric heater be subjected to bigger restriction, as the electric heater that uses in the air, heating-up temperature is less than 300 ℃, and the order temperature is when higher, and the obvious variation of the insulation property of alumina powder has more limited the scope of application.
The utility model is the defective that exists at above-mentioned technology, providing a kind of can use in wider temperature range, under higher temperature insulation property good, can remove the draw operation that the complexity of dwindling diameter of steel tube is taken cost again from, can remove the porcelain bead type tubular electric heating of annealing operation again from.
The utility model is the porcelain bead type tubular electric heating, and for achieving the above object, the utility model turns to spring-like to heating wire and is stretched to steel pipe isometricly, and porcelain bead on the heating wire outer cover inserts in the steel pipe again.The heating wire two ends link to each other with the eduction rod that puts concavo-convex porcelain connector and annular steel washer, and fix eduction rod.The welding of two ends of annular steel washer and steel pipe, eduction rod can bear bigger pulling force so again.Again the electric heater of this straight shape is bent into required shape, and promptly becomes product in burn-on fixture or terminal box of two ends.
Above-mentioned porcelain bead type tubular electric heating compared with prior art has following distinguishing feature and good effect.1. because insulating material adopts porcelain bead instead of alumina powder, remove the complexity high operation of cost again of dwindling diameter of steel tube from, and removed the steel pipe annealing operation from, obviously reduced production cost.2. better when heating back insulation property are than cold conditions because porcelain bead is switched on, overcome the alumina powder weakness that insulating properties descends after the energising heating, and porcelain bead ratio aluminum oxide powder is more high temperature resistant, and the heating-up temperature scope of tubular electric heating is obviously enlarged.The utility model can be used for electric heating gas, liquid and solid.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Accompanying drawing is the integrally-built partial sectional view of the utility model
As shown in the figure, the utility model is by steel pipe 1 and be located at the porcelain bead 2 in the steel pipe 1 and the heating wire 3 be located in the porcelain bead 2 are formed, choose the steel pipe 1 of required diameter, the length that intercepting needs, heating wire 3 coiled spring-like and be stretched to steel pipe 1 isometric, porcelain bead 2 solid matters on heating wire 3 outer cover insert the heating wire 3 that puts porcelain bead 2 in the steel pipe 1 more together, expose the two ends of heating wire 3.Eduction rod 4 passes concavo-convex porcelain connector 5 and annular steel washer 6, is connected with heating wire 3, fixes eduction rod 4 simultaneously, annular steel washer 6 and the welding of steel pipe 1 two ends.Again as required, the tubular heater of straight shape is bent to required shape.At last promptly become product in burn-on suitable fasteners or terminal box of two of steel pipe 1.The utility model is applicable to electric heating gas, liquid and solid.
Claims (2)
1. porcelain bead type tubular electric heating, form by steel pipe (1) and the heating wire (3) be located in the steel pipe (1), it is characterized in that making insulating barrier with porcelain bead (2) between heating wire (1) and steel pipe (1), porcelain bead (2) inserts in the steel pipe (1) together on heating wire (3) outer cover, and the two ends of heating wire (3) are connected with eduction rod (4) respectively.
2. porcelain bead type tubular electric heating according to claim 1, its feature comprise that also eduction rod (4) passes concavo-convex two and the annular steel washer (6) of porcelain connector (5), and annular steel washer (6) welds mutually with steel pipe (1) port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00232655 CN2418642Y (en) | 2000-04-28 | 2000-04-28 | Tube-like electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00232655 CN2418642Y (en) | 2000-04-28 | 2000-04-28 | Tube-like electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2418642Y true CN2418642Y (en) | 2001-02-07 |
Family
ID=33595224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00232655 Expired - Fee Related CN2418642Y (en) | 2000-04-28 | 2000-04-28 | Tube-like electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2418642Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435599C (en) * | 2003-07-16 | 2008-11-19 | 宁波大榭信易电热有限公司 | Electrothermal ring |
| CN101854750A (en) * | 2010-04-11 | 2010-10-06 | 青岛易特优电子有限公司 | Electric heating tube made of hexagonal boron nitride and mixed heat conducting material thereof |
-
2000
- 2000-04-28 CN CN 00232655 patent/CN2418642Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435599C (en) * | 2003-07-16 | 2008-11-19 | 宁波大榭信易电热有限公司 | Electrothermal ring |
| CN101854750A (en) * | 2010-04-11 | 2010-10-06 | 青岛易特优电子有限公司 | Electric heating tube made of hexagonal boron nitride and mixed heat conducting material thereof |
| CN101854750B (en) * | 2010-04-11 | 2012-04-18 | 青岛易特优电子有限公司 | Electric heating tube made of hexagonal boron nitride and mixed heat conducting material thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Zheyi Document name: Notification of Termination of Patent Right |
|
| 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 |