CN204334985U - Electric radiant tube heater - Google Patents
Electric radiant tube heater Download PDFInfo
- Publication number
- CN204334985U CN204334985U CN201420825893.9U CN201420825893U CN204334985U CN 204334985 U CN204334985 U CN 204334985U CN 201420825893 U CN201420825893 U CN 201420825893U CN 204334985 U CN204334985 U CN 204334985U
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- CN
- China
- Prior art keywords
- resistance wire
- groove
- radiant tube
- sleeve pipe
- described sleeve
- Prior art date
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- Expired - Fee Related
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- Furnace Details (AREA)
Abstract
The utility model provides a kind of electric radiant tube heater to comprise radiant tube body, and at the sleeve pipe that tubular body is arranged, described sleeve pipe is wound with resistance wire, it is characterized in that described sleeve surface is provided with helical groove, described resistance wire is wound around and is arranged in the groove of sleeve pipe, and described sleeve pipe is ceramic refractory makes, and, in the groove that described sleeve surface is arranged, be arranged at intervals with snap close, described snap close can be fixed the resistance wire be arranged in groove.This is novel by arranging helical groove at sleeve surface, resistance wire is arranged on the mode in groove, avoid the short-circuit fire phenomenon that resistance wire easily occurs because of high temperature deformation, and the design of snap close prevents radiant tube to occur because of the phenomenon shaking the resistance wire that causes and come off.
Description
Technical field
The utility model relates to and a kind ofly utilizes resistance wire to generate heat to carry out the device that heats, particularly relate to a kind of Resistant heating device being arranged on radiant tube tubular body.
Background technology
At present, electric radiant tube heater of the prior art all adopts resistance wire to be directly wrapped on electrical bar sleeve pipe, switches on power, is generated heat by resistance wire, and then reaches the object of radiant tube transmission heating.But resistance wire of the prior art is in the process of heating, due to self gravity effect and hot soak condition, resistance wire can be there is and to expand sagging phenomenon, very easily cause being wound around resistance wire and contacting with each other, the phenomenon be short-circuited, greatly dangerous.Can use safely after must carrying out reverse-winding to resistance wire within a certain period of time.And resistance wire is closely wrapped on sleeve pipe due to needs, make every effort to reach best heating effect, it is according to process requirements, it is more thin better that resistance wire must be processed, when it is high-power to heating rod, resistance wire because of sectional area little, ampacity is inadequate, more can not meet the requirement making high-power heating rod.
Utility model content
In order to the useful life solving the existence of above-mentioned traditional electrical radiation tube heater is short, very easily short circuit is there is in use procedure, the dangerous situation of sparking, and the heat conduction efficiency of electric radiant tube is not high, be difficult to the shortcoming meeting high-power heating rod requirement, basis is novel provides a kind of electric radiant tube heater, comprise radiant tube body, and at the sleeve pipe that tubular body is arranged, described sleeve pipe is wound with resistance wire, it is characterized in that described sleeve surface is provided with helical groove, described resistance wire is wound around and is arranged in the described groove of sleeve pipe, and described sleeve pipe is ceramic refractory to be made.By arranging helical groove at traditional sleeve surface, being wound around by resistance wire is arranged in the groove of sleeve surface, effectively can prevent resistance wire from expanding under long-time heating state and contact with each other between the resistance wire that causes, the phenomenon causing short circuit to be struck sparks occurs.And can according to the concrete fineness of resistance wire, the internal diameter size of adjusting sleeve tube-surface groove, provides possibility for arranging thicker Resistant heating.
Preferably, in the groove that described sleeve surface is arranged, be arranged at intervals with snap close, described snap close can be fixed the resistance wire be arranged in groove.By being provided with the mode of insulation snap close in groove, reaching the fixing object of groove internal resistance wire, preventing whole radiant tube due to reasons such as exterior vibrations, the phenomenon causing resistance wire to shake in casing recess occurs.And due to the setting of snap close, can according to heating state, unrestricted choice resistance wire is wrapped in the active force on sleeve pipe, need not because worrying that resistance wire easily comes off in the situation of being heated, and occur that resistance wire is wound around sleeve pipe tension, cause resistance wire to generate heat in tension force situation, and the situation that the resistance wire occurred easily ruptures occur.Further, be save the cost of manufacture of sleeve pipe, the snap close in its groove can interval, arrange at sleeve pipe tow sides.
Preferably, between described radiant tube tubular body and described sleeve pipe, crystal magnesium oxide material is filled with.Crystal magnesium oxide contributes to resistance wire and is wound around thermal energy transfer on sleeve pipe in the exterior tubular body of radiant tube, its heat-energy losses will than significantly reducing in atmosphere, and radiant tube internal resistance silk can be prevented due to hypotelorism, cause the danger of high electrical breakdown air to occur.
Accompanying drawing explanation
The structural representation of the electric radiant tube heater that Fig. 1 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, the electric radiant tube heater that the utility model provides, comprise radiant tube body 1, and at the sleeve pipe 2 that tubular body is arranged, and the surface of sleeve pipe 2 is provided with spiral helicine surface groove 3, in groove 3, be wound with resistance wire 4, the spiral wound of resistance wire 4 in sleeve pipe 2 upper groove 3 is formed with this, when causing distortion to ensure resistance wire 4 to be in high temperature for a long time, still can, being fastened in groove 3, avoid contacting with each other and being short-circuited.And in the groove 3 of sleeve pipe 2, be arranged at intervals with buckle 5, fixing effect can be played to the resistance wire 4 in groove 3, and when needs are changed resistance wire 4, conveniently can carry out switching manipulation to buckle 5, facilitate dismounting and the replacing of resistance wire 4.And, be provided with crystal magnesium oxide material 6 in space between sleeve pipe 2 and radiant tube body 1, it contributes to the heat energy of resistance wire, is delivered on radiant tube body 1 when thermal loss is less, and thermal energy transfer speed is fast, prevents resistance wire voltage breakdown air.
Above-mentioned is only general principle of the present utility model, any restriction not made the utility model, every according to the utility model to its equivalent variations of carrying out and modification, all within protection range of the present utility model.
Claims (3)
1. an electric radiant tube heater, comprise radiant tube body, and at the sleeve pipe that tubular body is arranged, described sleeve pipe is wound with resistance wire, it is characterized in that described sleeve surface is provided with helical groove, described resistance wire is wound around and is arranged in the groove of sleeve pipe, and described sleeve pipe is ceramic refractory makes.
2. electric radiant tube heater according to claim 1, it is characterized in that being arranged at intervals with snap close in the groove that arranges at described sleeve surface, described snap close can be fixed the resistance wire be arranged in groove.
3. electric radiant tube heater according to claim 1, is characterized in that being filled with crystal magnesium oxide material between described radiant tube tubular body and described sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825893.9U CN204334985U (en) | 2014-12-24 | 2014-12-24 | Electric radiant tube heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825893.9U CN204334985U (en) | 2014-12-24 | 2014-12-24 | Electric radiant tube heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204334985U true CN204334985U (en) | 2015-05-13 |
Family
ID=53171289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420825893.9U Expired - Fee Related CN204334985U (en) | 2014-12-24 | 2014-12-24 | Electric radiant tube heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204334985U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897476A (en) * | 2015-06-10 | 2015-09-09 | 合肥通用机械研究院 | Device for testing material properties in high-temperature hydrogen environment |
| CN104931349A (en) * | 2015-06-10 | 2015-09-23 | 合肥通用机械研究院 | Seal friction compensation method for hydrogen environment material performance test device |
| CN105500878A (en) * | 2015-12-10 | 2016-04-20 | 佛山市南海和顺雷盛五金电器有限公司 | Novel high-temperature-resistant rubber-covered roller |
-
2014
- 2014-12-24 CN CN201420825893.9U patent/CN204334985U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897476A (en) * | 2015-06-10 | 2015-09-09 | 合肥通用机械研究院 | Device for testing material properties in high-temperature hydrogen environment |
| CN104931349A (en) * | 2015-06-10 | 2015-09-23 | 合肥通用机械研究院 | Seal friction compensation method for hydrogen environment material performance test device |
| CN104931349B (en) * | 2015-06-10 | 2018-03-02 | 合肥通用机械研究院有限公司 | Seal friction force compensation method for hydrogen environment material properties test device |
| CN104897476B (en) * | 2015-06-10 | 2018-03-02 | 合肥通用机械研究院有限公司 | A kind of high-temperature hydrogen environmentally conscious materialses performance test apparatus |
| CN105500878A (en) * | 2015-12-10 | 2016-04-20 | 佛山市南海和顺雷盛五金电器有限公司 | Novel high-temperature-resistant rubber-covered roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20171224 |