CN1202298C - One cavity multiple pipe high frequency heating device - Google Patents
One cavity multiple pipe high frequency heating device Download PDFInfo
- Publication number
- CN1202298C CN1202298C CN 02103976 CN02103976A CN1202298C CN 1202298 C CN1202298 C CN 1202298C CN 02103976 CN02103976 CN 02103976 CN 02103976 A CN02103976 A CN 02103976A CN 1202298 C CN1202298 C CN 1202298C
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- cavity
- high frequency
- radio
- coupler
- heating device
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- Inorganic Fibers (AREA)
- Carbon And Carbon Compounds (AREA)
- Tunnel Furnaces (AREA)
- Resistance Heating (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
The present invention relates to an improvement of a special high-frequency heating device for producing graphite carbon fibers by a radio frequency method, which has the technical scheme that a circular sleeve-tube type structure of a cross section of a radio frequency coupler is changed into an oblate sleeve-tube type structure, the radial geometric size of a coupling cavity is enlarged, more than two quartz tubular reactors can be simultaneously arranged in parallel, the focused electromagnetic field is converted into a plane surface type, and thus, a processing technology for one cavity with multiple bundles is realized, the output of a single machine is enhanced, and the present invention lays the installation bases for industrial production and cost reduction.
Description
Technical field
The invention belongs to the special-purpose thermatron in the radio frequency method carbon fiber and graphite processing technology.
Background technology
Graphitized carbon fibre has become irreplaceable material in the aerospace field with its high-modulus and extremely low thermal coefficient of expansion.The particularly popularization of using in physical culture, military affairs, communication, traffic, its important value and the status in high-tech area are also more and more obvious.The processing method that radio frequency method is made graphitized carbon fibre is a new exploration, and it is to reducing production costs, and the performance that further improves the quality provides possibility.The design philosophy of this production technology and isolated plant all has detailed description and further improves design in No. 98115308 patent documentations and No. 0110053 patent application.New improvement project is outside original high frequency electric source and supporting radio-frequency (RF) coupler and differential folding and unfolding bundle speed mechanism, on the inwall in RF-coupled chamber, to be provided with the interlayer cooling jacket again, to its objective is that the coupling cavity temperature rise causes the reaction chamber gas ionization and makes reaction temperature contradiction out of control in the serialization production process in order adapting to.Special-purpose heater after the improvement adapts to the needs that industrialization is produced more.However, this thermatron still exposes unit production capacity in industrialization trial production low excessively, and defectives such as bad adaptability make average production cost high, this be should be in design improved key issue in addition.
Summary of the invention
The object of the invention is to improve the disposal ability of single device device in the graphitization processing of radio frequency method carbon fiber, makes it more adapt to the needs that industrialization is produced.
For realizing that the design concept that the object of the invention is taked is the geometry that changes RF-coupled chamber, its processing that can adapt to a chamber multiple fibre is carried out simultaneously synchronously, thereby reduced average production cost greatly.
Design of the present invention is the geometry with two concentric circles sleeve pipes of RF-coupled cavity, changing cross section into is oblate tube-in-tube structure, the physical dimension of coupling cavity is elongated in radial direction, thereby holding plural quartz tube reactor is arranged side by side, form the one cavity multiple pipe structure, the differential folding and unfolding silk wheel of the corresponding independent regulation of each tubular reactor, so just can be under the prerequisite that strengthens supporting high frequency electric source power output, form planar heat build-up electromagnetic field by the RF-coupled cavity of oblateness, to the carbon fibre tow heating synchronously simultaneously of passing each quartz glass tubular type quartz reactor, form the shared equipment expense that drops into that makes of auxiliary device and descend greatly, and production cost obviously reduces.
Further describe improvement project of the present invention below in conjunction with accompanying drawing, with statement invention how to realize.
Description of drawings
Accompanying drawing 1 is the structural representation of one cavity multiple pipe high frequency heating device of the present invention.
Accompanying drawing 2 is that Fig. 1 F-F is to the view schematic diagram.
Wherein 1 represent high frequency electric source; 2 represent radio-frequency (RF) coupler; the quartz glass pipe reactor of coupler cavity is passed in 3 representatives; 3A represents into silk mouth; 3B represents filament mouth; 3C represents the gas atmosphere inlet, and 3D represents the protective gas export mouth, and 4 represent the differential setting device; 4A represents wire drawing wheel; the silk wheel is put in 4B representative, and 5 represents the short-circuited coil of the independent regulation that is provided with in the reaction zone, the choke chamber that 2A representative and coupling cavity 2 are supporting; 6 represent fibre bundle; 7 represent cooling jacket, and 7A represents coolant outlet, and 7B represents cooling water inlet.
The specific embodiment
With the transversal space of having strengthened reaction chamber after the oblate telescopic RF-coupled cavity that changes into for the telescopic RF-coupled cavity of circular concentric, simultaneously also making the distribution of focused electromagnetic is planar shaped by linear change, at this moment allow two above quartz glass tubulose reactor 3 parallel settings can realize multiple fibre bundle 6 synchronous heat treated, remove outside the differential folding and unfolding silk wheel (4A, 4B) of corresponding independent regulation, other servo control mechanism can be public, thereby reduce equipment investment greatly, improved single machine yield.For guaranteeing that it focuses on the uniformity of back electromagnetic field, quartz tube reactor 3 set in the coupling cavity is advisable with 3-5.
What Fig. 2 provided is the cross section structure schematic diagram of radio-frequency (RF) coupler 2 among the present invention.In order to guarantee the uniformity consistency of every bundle fiber processing temperature, but the short-circuited coil 5 of independent regulation all is set, to adjust the uniformity of electromagnetic field at each quartz glass tubulose reactor 3 correspondence position.Can also regulate every pair of differential when multiple fibre produces temperature contrast and put the linear velocity and relative drafting force of speed wheel, to guarantee the quality conformance in the carbon fibre graphitization processing.
This single machine yield that improves and produce cost in batches to reducing, improves industrialization production has special effect, particularly in conjunction with the technology of a chamber multi beam, can significantly improve single machine yield, for industrialization process is laid solid technical foundation.
Claims (3)
1, radio frequency method carbon fiber and graphite one cavity multiple pipe high frequency heating device, comprise high frequency electric source (1) in this apparatus structure, radio-frequency (RF) coupler (2), differential folding and unfolding silk device (4), radio-frequency (RF) coupler (2) inwall is provided with interlayer cooling jacket (7), put and be provided with cooling water outlet and inlet (7A, 7B), it is characterized in that the cavity in the radio-frequency (RF) coupler (2) is that cross section is oblate telescoping structure, the plural quartz glass tubulose reactor (3) that can be arranged in parallel in the cavity, the corresponding folding and unfolding silk wheel (4A that can independently regulate and control of each quartz glass tubulose reactor (3), 4B).
2,, it is characterized in that being set in the radio-frequency (RF) coupler (2) 3-5 quartz glass tubulose reactor (3) according to the said one cavity multiple pipe high frequency heating device of claim 1.
3, according to claim 1 or 2 said one cavity multiple pipe high frequency heating devices, it is characterized in that each quartz glass tubulose reactor (3) but correspondence is set up the short-circuited coil (5) of an independent regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02103976 CN1202298C (en) | 2002-03-05 | 2002-03-05 | One cavity multiple pipe high frequency heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02103976 CN1202298C (en) | 2002-03-05 | 2002-03-05 | One cavity multiple pipe high frequency heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1442520A CN1442520A (en) | 2003-09-17 |
| CN1202298C true CN1202298C (en) | 2005-05-18 |
Family
ID=27793009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02103976 Expired - Fee Related CN1202298C (en) | 2002-03-05 | 2002-03-05 | One cavity multiple pipe high frequency heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1202298C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332082C (en) * | 2004-04-19 | 2007-08-15 | 陈新谋 | Graphitization preparation process for carbon fiber by using radio frequency method and production system thereof |
| CN100339523C (en) * | 2004-05-11 | 2007-09-26 | 陈新谋 | Microwave thermal reaction device for carbonizing pre-oxidized fiber, and processing technique |
| CN107820522B (en) * | 2016-12-26 | 2019-04-09 | 大石桥弘治 | Microwave heating equipment |
| CN108560081B (en) * | 2018-05-30 | 2023-07-18 | 中国科学院宁波材料技术与工程研究所 | Preparation system and method of high-strength high-modulus carbon fiber |
-
2002
- 2002-03-05 CN CN 02103976 patent/CN1202298C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1442520A (en) | 2003-09-17 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| DD01 | Delivery of document by public notice |
Addressee: Wang Yuanxiang Document name: Notification to Pay the Fees |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050518 |