CN2718931Y - Carbon-fibre composite felt body quartz electric heating tube - Google Patents
Carbon-fibre composite felt body quartz electric heating tube Download PDFInfo
- Publication number
- CN2718931Y CN2718931Y CN 200420081110 CN200420081110U CN2718931Y CN 2718931 Y CN2718931 Y CN 2718931Y CN 200420081110 CN200420081110 CN 200420081110 CN 200420081110 U CN200420081110 U CN 200420081110U CN 2718931 Y CN2718931 Y CN 2718931Y
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- molybdenum sheet
- quartz glass
- glass tube
- main body
- molybdenum
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Abstract
The utility model discloses a carbon-fibre composite felt body quartz electric heating tube, comprising a quartz glass tube (5), a heating main body (4), a molybdenum sheet electrode contact (3), a transition molybdenum sheet (2) and a molybdenum rod (1). The heating main body (4) is arranged on the inner cavity of the quartz glass tube (5), and the transition molybdenum sheet (2) is sealed on the sealing part of the end part of the quartz glass tube (1). One end of the molybdenum rod (1) is fixed to the transition molybdenum sheet (2), and the other end extends out the sealing part of the end part of the quartz glass tube (5). The heating main body (4) is cut up into the long strip shape by a carbon-fiber composite felt body made of polyacryl-nitrile based carbon-fiber and viscose based carbon-fiber by special technics, both ends of the heating main body are lapped and buckled together by the molybdenum sheet electrode contact (3), and the other end of the molybdenum sheet electrode contact (3) is fixed to the transition molybdenum sheet (2); adopting the above structure, the utility model has the characteristics of simple structure, big contact surface, firm connection, simple manufacture technics, long service life, high electric heating conversion efficiency, etc. The utility model is an ideal substitution product of the existing electric heating tube.
Description
Technical field
The present invention relates to a kind of electrothermal tube, particularly a kind of electrothermal tube that utilizes carbon fiber composite felt body as the heating main body.
Background technology
The heating main body that the quartz electrothermal tube of prior art generally adopts materials such as nichrome, molybdenum filament, tungsten filament to make, because self intrinsic characteristic factor of materials such as nichrome, molybdenum filament, tungsten filament, easily oxidation of surface in the electric heating process, cause local overheating easily and blow, in the electric heating transfer process, there is simultaneously a large amount of visible lights to exist, the heat efficiency is low, so they are difficult to make and have electric heating products durable in use and that the heat efficiency is high, has influenced it to a certain extent and has just used scope.At present the electric heating products of state-of-the-art technology is to serve as the heating main body with single carbon fiber felt bodies such as carbon fiber felt body, carbon fiber filaments, and its advantage is a far infrared radiation conversion efficiency height, reaches more than 80%, and the electric conversion efficiency height is up to more than 98%; Its weak point one is that heating body resistance value deviation is big, causes the power instability, produces difficulty in batches; The 2nd, existing product heating main body adopts spiral molybdenum filament electrode nipple spiral to connect, because the plane distribution of carbon fiber, spiral molybdenum filament electrode nipple contacts weak effect with the carbon fiber of plane distribution, contacts side surfaces will be got well relatively, expanding appears in spiral molybdenum filament electrode nipple easily under long-time "on" position, after the expansion, cause electrode nipple and carbon fiber contact area to reduce, resistance increases, discharge a large amount of heats in carbon fiber heating main body and spiral molybdenum filament electrode nipple joint, be easy to cause strike sparks and blow, cause that sometimes quartz glass tube wall high temperature breaks, thereby influenced the whole service life of electrothermal tube, caused this product to be difficult to apply.
Summary of the invention
For overcoming the above-mentioned defective that existing carbon fiber electric heating tube exists, problem to be solved in the utility model provide a kind of simple in structure, contact-making surface big, be connected firmly, the carbon fiber composite felt body quartz electrothermal tube of long service life.The technical scheme that its technical problem that solves the utility model adopts, comprise stone heating main body, the molybdenum sheet electrode nipple, transition molybdenum sheet and molybdenum rod, the heating main body is arranged on the inner chamber of quartz glass tube, transition molybdenum sheet press seal is at the press seal place of quartz glass tube end, molybdenum rod one end is fixed on the transition molybdenum sheet, the other end stretches out the press seal place of quartz glass tube end, the slitting shape of carbon fiber composite felt body that described heating main body is made through special process by polyacrylonitrile-radical and viscose-based carbon fiber, its two ends connect with molybdenum sheet electrode nipple bag and withhold together, and the other end of molybdenum sheet electrode nipple and transition molybdenum sheet are fixed; Described quartz glass tube is provided with inflation inlet, and is filled with inert gas by inflation inlet.
After adopting said structure, because the slitting shape of carbon fiber composite felt body that the heating main body is made through special process by polyacrylonitrile-radical and viscose-based carbon fiber, processing technology is simple, power stability; Again since the two ends of carbon fiber composite felt body connect with molybdenum sheet electrode nipple bag and withhold together, not only contact-making surface is big for electrode and felt body, and be connected firmly, reach its useful life more than 5000 hours, frequent starting, close and long-term continuous operation in, heating main body non-oxidation and punch-through, and photochromic even, the inside and outside cleaning of tube wall of generating heat; To connect contact-making surface little thereby solved spiral molybdenum filament electrode nipple spiral effectively, and electrode nipple is prone to expand and causes joint to discharge a large amount of heats, causing that sparking blows, and causes quartz glass tube wall high temperature fracture phenomena sometimes; Have simple in structure, contact-making surface big, be connected firmly, manufacture craft is simple, long service life, electric conversion efficiency advantages of higher, is the desirable substitute products of present electrothermal tube, can be widely used in, on the products such as oven dry, heating, health care and physiotherapy.
Description of drawings
Fig. 1 is a main TV structure schematic diagram of the present utility model.
Fig. 2 is a plan structure schematic diagram of the present utility model.
Fig. 3 is the B-B cutaway view of Fig. 1.
Embodiment
Fig. 1 is to shown in Figure 3, specific embodiments for a kind of carbon fiber composite felt of the present invention body quartz electrothermal tube, it comprises heating main body 4, molybdenum sheet electrode nipple 3, transition molybdenum sheet 2 and molybdenum rod 1, heating main body 4 is arranged on the inner chamber of quartz glass tube 5, transition molybdenum sheet 2 press seals are at the press seal place of quartz glass tube 1 end, molybdenum rod 1 one ends are fixed on the transition molybdenum sheet 2, the other end stretches out the press seal place of quartz glass tube 5 ends, the carbon fiber composite felt body that described heating main body 4 is made through special process by polyacrylonitrile-radical and viscose-based carbon fiber, slitting as requested shape, its two ends connect with molybdenum sheet electrode nipple 3 bags and withhold together, and the other end of molybdenum sheet electrode nipple 3 and transition molybdenum sheet 2 are fixing; Described quartz glass tube 5 is provided with inflation inlet 6, and is filled with inert gas 7 by inflation inlet 6.Because heating main body 4 two ends connect with molybdenum sheet electrode nipple 3 bags and withhold together, having solved spiral molybdenum filament electrode nipple spiral effectively, to connect contact-making surface little, electrode nipple is prone to expand and causes joint to discharge a large amount of heats, causing strikes sparks blows, cause quartz glass tube wall high temperature fracture phenomena sometimes, the useful life of having improved electrothermal tube greatly; Because the slitting shape of carbon fiber composite felt body that heating main body 4 adopts polyacrylonitrile-radicals and viscose-based carbon fiber to make through special process, resistance value error is little again, and power stability is organized convenient for production.
Claims (2)
1, a kind of carbon fiber composite felt body quartz electrothermal tube, comprise quartz glass tube (5), heating main body (4), molybdenum sheet electrode nipple (3), transition molybdenum sheet (2) and molybdenum rod (1), heating main body (4) is arranged on the inner chamber of quartz glass tube (5), transition molybdenum sheet (2) press seal is at the press seal place of quartz glass tube (1) end, molybdenum rod (1) one end is fixed on the transition molybdenum sheet (2), the other end stretches out the press seal place of quartz glass tube (5) end, it is characterized in that: the slitting shape of carbon fiber composite felt body that described heating main body (4) is made through special process by polyacrylonitrile-radical and viscose-based carbon fiber, its two ends connect with molybdenum sheet electrode nipple (3) bag and withhold together, and the other end of molybdenum sheet electrode nipple (3) and transition molybdenum sheet (2) are fixing.
2, carbon fiber composite felt body quartz electrothermal tube according to claim 1, it is characterized in that: described quartz glass tube (5) is provided with inflation inlet (6), and is filled with inert gas (7) by inflation inlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081110 CN2718931Y (en) | 2004-07-19 | 2004-07-19 | Carbon-fibre composite felt body quartz electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081110 CN2718931Y (en) | 2004-07-19 | 2004-07-19 | Carbon-fibre composite felt body quartz electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718931Y true CN2718931Y (en) | 2005-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081110 Expired - Fee Related CN2718931Y (en) | 2004-07-19 | 2004-07-19 | Carbon-fibre composite felt body quartz electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718931Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294407A (en) * | 2014-10-15 | 2015-01-21 | 北京化工大学 | Shaft core focused carbon fiber graphitization furnace through laser tunnel reflection method |
-
2004
- 2004-07-19 CN CN 200420081110 patent/CN2718931Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294407A (en) * | 2014-10-15 | 2015-01-21 | 北京化工大学 | Shaft core focused carbon fiber graphitization furnace through laser tunnel reflection method |
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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 |