CN1399498A - Electric heater - Google Patents
Electric heater Download PDFInfo
- Publication number
- CN1399498A CN1399498A CN 02135449 CN02135449A CN1399498A CN 1399498 A CN1399498 A CN 1399498A CN 02135449 CN02135449 CN 02135449 CN 02135449 A CN02135449 A CN 02135449A CN 1399498 A CN1399498 A CN 1399498A
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- CN
- China
- Prior art keywords
- electric heater
- resistance wire
- groove
- notch
- 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.)
- Pending
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- Resistance Heating (AREA)
Abstract
The present invention discloses an electric heater for high-pressure automatically controlled reactor. It consists of tube and resistive wire and features that there is spiral notch in the inner wall of the tube and that resistive wire is embedded into the notch. The notch has U-shaped cross section, which is narrower in the upper part than in the bottom part. It has the advantages of easy installation, high safety and reliability and long service life.
Description
The invention belongs to electric heater unit, be specifically related to the electric heater of using on a kind of pressure self-controlled reactor.
The electric heater of on pressure self-controlled reactor, using a few days ago, its structure is: make cylindrical tube with the carborundum aluminous refractory, along evenly being provided with a plurality of through holes on the direction of body, resistance wire is passed each through hole successively at tube wall, and the resistance wire two ends are fixed get final product.Its shortcoming, the one, the resistance wire on the body two-end part exposes outside tube wall, and is dangerous during use; The 2nd, resistance wire heating deliquescing easily hangs, and the resistance of resistance wire is reduced, and causes resistance wire short circuit fusing, the useful life of having reduced electric heater.
The purpose of this invention is to provide a kind of simple in structure, production efficiency is high, the life-span is long electric heater.
Technical scheme of the present invention is: a kind of electric heater, form by body and resistance wire, and it is characterized in that: the hand of spiral is provided with groove in the inboard wall of tube body upper edge, and resistance wire is embedded in the groove.The cross section of its further groove is " U " shape, and the distance between the both sides, " U " shape upper end is littler than the length on base.
Good effect of the present invention is: resistance wire is to be embedded in the groove that the inboard wall of tube body upper edge hand of spiral is provided with, and is exposed, have and install easily, and the production efficiency height, safe and reliable, the advantage of long service life.
Come technical scheme of the present invention is described in further details below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the cross section enlarged diagram of groove.
With reference to figure 1, Fig. 2, Fig. 3.Make cylindrical tube 1 with the carborundum aluminous refractory, be provided with groove 3 in the body 1 inwall upper edge hand of spiral; The cross section of groove 3 is " U " shape, and the distance between the both sides, " U " shape upper end is littler than the length on base; Resistance wire 2 is embedded in the groove 3, resistance wire 2 two ends is fixed on the body gets final product again.
Claims (2)
1, a kind of electric heater is made up of body (1) and resistance wire (2), it is characterized in that: the hand of spiral is provided with groove (3) in body (1) inwall upper edge, and resistance wire (2) is embedded in the groove (3).
2, a kind of electric heater according to claim 1 is characterized in that described groove (3) cross section is " U " shape, and the distance between the both sides, " U " shape upper end is littler than the length on base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135449 CN1399498A (en) | 2002-08-29 | 2002-08-29 | Electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135449 CN1399498A (en) | 2002-08-29 | 2002-08-29 | Electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1399498A true CN1399498A (en) | 2003-02-26 |
Family
ID=4748206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02135449 Pending CN1399498A (en) | 2002-08-29 | 2002-08-29 | Electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1399498A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974640A (en) * | 2012-10-30 | 2013-03-20 | 无锡鸿声铝业有限公司 | Heat-insulating apparatus for section bar extruder |
| CN102989815A (en) * | 2012-10-30 | 2013-03-27 | 无锡鸿声铝业有限公司 | Temperature preservation device for metal section extruder |
-
2002
- 2002-08-29 CN CN 02135449 patent/CN1399498A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974640A (en) * | 2012-10-30 | 2013-03-20 | 无锡鸿声铝业有限公司 | Heat-insulating apparatus for section bar extruder |
| CN102989815A (en) * | 2012-10-30 | 2013-03-27 | 无锡鸿声铝业有限公司 | Temperature preservation device for metal section extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |