CN2222418Y - U-shaped electric heating tube - Google Patents
U-shaped electric heating tube Download PDFInfo
- Publication number
- CN2222418Y CN2222418Y CN 94235627 CN94235627U CN2222418Y CN 2222418 Y CN2222418 Y CN 2222418Y CN 94235627 CN94235627 CN 94235627 CN 94235627 U CN94235627 U CN 94235627U CN 2222418 Y CN2222418 Y CN 2222418Y
- Authority
- CN
- China
- Prior art keywords
- heating wire
- electric heating
- shaped
- heating tube
- shaped electric
- 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 belongs to the electric heating device, mainly relates to a U-shaped electric heating tube. A heating wire of the U-shaped part of the utility model, on the basis of the existing U-shaped electric heating tube, is directly bent by beeline-shaped heating wire, thereby, can enhance the service life of the existing U-shaped electric heating tube, reduces the possibility that the heating wire at the U-shaped site is blown, and enhances heat using rate.
Description
The utility model belongs to electric heating device, relates generally to the U type electrothermal tube.
The U type electrothermal tube of prior art is to adorn a spiral helicine heating wire at metal tube center string, is filled also by magnesia powder and is fixed, and bends moulding from the position, intermediate portion then.In the process that bends the U type, because the helical form heating wire at U type position deforms, promptly its inner ring pressurized, outer ring tension make pitch smaller or increase between the heating wire, produce the stress concentration phenomenon.After the heating wire energising, the heating wire at U type position very easily is blown.According to incompletely statistics, the damage about 98% of U type electrothermal tube is to occur in U type position.
The purpose of this utility model provides a kind of electrothermal tube long service life, the U type electrothermal tube that U type position is difficult for being blown.
The utility model is on the basis of existing U type electrothermal tube, and the heating wire at its U type position is directly bent by the heating wire of linearity and forms.
The heating wire of linearity can be an one with spiral helicine heating wire, also can be formed by connecting.On the corresponding metal tube outer surface of helical form heating wire, connect fin, help the heat radiation of electrothermal tube.
The utility model is owing to the shape that has changed U type position heating wire, thereby the useful life that can improve electrothermal tube greatly, reduces the possibility that U type position heating wire is blown.Change the situation of U type electrothermal tube local overheating in the prior art, can also improve the hot merit utilance.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a most preferred embodiment of the present utility model.
Among the figure, 1 heating wire, 2 heating wire, 3 metal tubes, 4 fins, 5 magnesia powders, 6 flanges, 7 bolts, 8 insulating washers, 9 binding posts.
Heating wire 1 and heating wire 2 are integral, and are serially connected in the metal tube 3, are filled by magnesia powder 4 and fix, and at the two ends of metal tube 3, are connected with mounting flange 6, fastening bolt 7, insulation sealing gasket 8 and draw binding post 9.Metal fin 4 string with the outer surface of heating wire 2 corresponding metal tubes 3, help the heat radiation of metal tube.According to purposes, also can be coated with far-infrared material at the outer surface of metal tube.
Claims (3)
1, a kind of U type electrothermal tube, comprise metal tube (3) and be positioned at metal tube, by magnesia powder (5) fixing heating wire (2), heating wire (1), flange (6), bolt (7), insulating washer (8), binding post (9) are positioned at the two ends of metal tube (3), it is characterized in that heating wire (1) is that heating wire by linearity bends and forms, and be connected with heating wire (2).
2, U type electrothermal tube according to claim 1 is characterized in that heating wire (1) and heating wire (2) are one.
3, U type electrothermal tube according to claim 1 and 2 is characterized in that the outer surface of the corresponding metal tube of heating wire (2) (3) connects fin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94235627 CN2222418Y (en) | 1994-10-28 | 1994-10-28 | U-shaped electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94235627 CN2222418Y (en) | 1994-10-28 | 1994-10-28 | U-shaped electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222418Y true CN2222418Y (en) | 1996-03-13 |
Family
ID=33843841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94235627 Expired - Fee Related CN2222418Y (en) | 1994-10-28 | 1994-10-28 | U-shaped electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222418Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815372A (en) * | 2010-05-06 | 2010-08-25 | 宁波丽辰电器有限公司 | Heating element of electric heater and fixing method thereof |
| CN102361521A (en) * | 2011-10-21 | 2012-02-22 | 无锡博睿奥克电气有限公司 | Electrical heated tube with high heat exchange efficiency |
| CN102843797A (en) * | 2011-06-24 | 2012-12-26 | 芜湖华族实业有限公司 | Combined type metal PTC (positive temperature coefficient) rapid electric heater |
| CN103747546A (en) * | 2014-01-17 | 2014-04-23 | 华能无锡电热器材有限公司 | U-shaped electric heating tube |
| CN104270842A (en) * | 2014-09-15 | 2015-01-07 | 常州市耀华仪器有限公司 | U-shaped heating pipe |
| CN106402997A (en) * | 2016-10-26 | 2017-02-15 | 美的集团股份有限公司 | Oil heater |
-
1994
- 1994-10-28 CN CN 94235627 patent/CN2222418Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815372A (en) * | 2010-05-06 | 2010-08-25 | 宁波丽辰电器有限公司 | Heating element of electric heater and fixing method thereof |
| CN102843797A (en) * | 2011-06-24 | 2012-12-26 | 芜湖华族实业有限公司 | Combined type metal PTC (positive temperature coefficient) rapid electric heater |
| CN102361521A (en) * | 2011-10-21 | 2012-02-22 | 无锡博睿奥克电气有限公司 | Electrical heated tube with high heat exchange efficiency |
| CN103747546A (en) * | 2014-01-17 | 2014-04-23 | 华能无锡电热器材有限公司 | U-shaped electric heating tube |
| CN104270842A (en) * | 2014-09-15 | 2015-01-07 | 常州市耀华仪器有限公司 | U-shaped heating pipe |
| CN106402997A (en) * | 2016-10-26 | 2017-02-15 | 美的集团股份有限公司 | Oil heater |
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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 |