CN208166581U - A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace - Google Patents
A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace Download PDFInfo
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- CN208166581U CN208166581U CN201820218648.XU CN201820218648U CN208166581U CN 208166581 U CN208166581 U CN 208166581U CN 201820218648 U CN201820218648 U CN 201820218648U CN 208166581 U CN208166581 U CN 208166581U
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- temperature
- boiler tube
- graphite
- heat
- graphitizing furnace
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Abstract
The utility model relates to carbon fiber thermal processing equipment fields,In particular to a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace,It include boiler tube,Temperature control system,Heating mechanism and heat-shield mechanism,Heating mechanism includes several graphite heating bodies,Heat-shield mechanism includes several heat insulators,Temperature control system includes the temperature sensor and controller that several detect each graphite heating body to boiler tube heating temperature respectively,Inert gas is filled in the boiler tube,The heating mechanism and heat-shield mechanism outer sheath are equipped with rectangular configuration and its length direction metal shell parallel with boiler tube axis,The warm area of superhigh temperature graphitizing furnace is designed into 2 to 6 each warm area temperature independent detections and control by the utility model,Keep the control of the temperature between each warm area independent by graphite heating body and heat insulator,It with set temperature gradient and can be kept constant between each warm area,Heat insulator can influence each other to avoid different warm areas,The inert gas of boiler tube is to polyacrylonitrile fibril real-time guard under ultra-high temperature condition.
Description
Technical field
The utility model relates to carbon fiber thermal processing equipment field, in particular to a kind of multi-temperature zone continous way superhigh temperature graphite
Change furnace.
Background technique
Carbon fiber is the most excellent fibrous material of each fiber material neutrality energy, wherein processed on the basis of carbon fiber
High-strength high-modules carbon fibre (graphite fibre) is even more the king of fibrous material, due to the excellent properties of carbon fibre material, American-European-Japanese prosperity
Country is in the research and development for constantly carrying out carbon fibre material product, and the high-end carbon fibre material technology in the world mainly rests in day U.S. at present
In family's hand.The existing technological factor for restricting domestic carbon fiber and graphite fibre technical level at present also has process equipment factor.
The heat treatment process of carbon fiber be by the technical process such as oxidation, carbonization, surface treatment to polyacrylonitrile fibril into
Row processing, polyacrylonitrile fibril is gradually heated on certain temperature in specific processing atmosphere, and it is former to remove polyacrylonitrile
Non-carbon element in silk, makes polyacrylonitrile fibril be converted into the carbon fiber of 90% or more phosphorus content.And high-strength high-modules carbon fibre (stone
Black fiber) processing technology is then to increase the heat treatment of further superhigh temperature, by fiber on the basis of carbon-fiber high-temperature heat treatment
Phosphorus content is further increased to 99% or more, then carries out the technique such as being surface-treated again.
The equipment of most critical is exactly superhigh temperature graphitizing furnace in carbon fiber superhigh temperature treatment process, superhigh temperature graphitizing furnace it
So technical threshold is very high, on the one hand the requirement under such high-temperature to graphite heating body and boiler tube is very high, if stone
The purity of ink, which is not achieved, can greatly shorten service life.It is also one that another aspect carbon fiber superhigh temperature, which is heat-treated (graphitization) process,
The process of a complexity, different temperature gradient influence graphited quality, multi-temperature zone be conducive to the control of graphitizing process temperature and
The flexibility of adjusting, it is highly beneficial to being graphitized, however structure is complicated for multi-temperature zone superhigh temperature graphitizing furnace, how to avoid not equality of temperature
Area, which influences each other, certain technical difficulty.Third is that inert gas shielding of the operation to graphite heating body and boiler tube under ultra-high temperature condition
It is required that also very high.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of multi-temperature zone continous way superhigh temperature graphite
Change furnace.
To solve the above problems, the utility model provides following technical scheme：
A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace, includes horizontally disposed boiler tube, temperature control system, is arranged
Heating mechanism and heat-shield mechanism on boiler tube, heating mechanism include that several are used for respectively to the graphite of boiler tube segmentally heating
Calandria, for all graphite heating bodies along the axis equidistantly distributed of boiler tube, heat-shield mechanism includes several heat insulators, is owned
Heat insulator is arranged in one by one respectively between two graphite heating bodies, and temperature control system includes that several detect each stone respectively
Black calandria is electrically connected the temperature sensor and controller of boiler tube heating temperature, all temperature sensors with controller,
Inert gas is filled in the boiler tube, the heating mechanism and heat-shield mechanism outer sheath are equipped with rectangular configuration and its length direction
The metal shell parallel with boiler tube axis.
Further, further include having water-cooling system, the water-cooling system include several be laid on it is cold outside metal shell
But copper pipe and several throttle valves, all cooling copper tubes are connected to one by one with all throttle valves.
Further, the boiler tube both ends are provided with boiler tube sealing mechanism, and boiler tube sealing mechanism includes and boiler tube one
The sealing column cap being threadedly coupled is held, the axis for sealing column cap is overlapped with the axis of boiler tube, and the cylindrical side for sealing column cap is provided with admittedly
Reservation, fixing seat are fixedly connected with metal shell close to one end of fixing seat.
Further, the sealing column cap is provided with the through-hole passed through for fiber filament, seals the one end of column cap far from boiler tube
It is provided with the end cap for cylindrical type, the axis of end cap is overlapped with the axis of through-hole, and the cylindrical side of end cap is provided with conveying inertia
The appendix of gas, end cap are provided with the avoid holes passed through for fiber filament far from one end of sealing column cap.
Further, the appendix is connected with to by the air separation plant of inert gas and air separation, two gas transmissions
Pipe is connected to the suction end of air separation plant and outlet side respectively.
Further, it is described sealing column cap be located at through-hole lean on proximal cover one end be provided with rotary table type hole, rotary table type hole
Axis is overlapped with the axis of sealing column cap, and the stub end of rotary table type hole is arranged by proximal cover.
Further, the temperature sensor is the anti-oxidant thermocouple sensor of superhigh temperature, all graphite heating body difference
It is electrically connected by contactor and controller, throttle valve is electrically connected by driver and controller.
Further, it is provided with insulating layer on the inside of the metal shell, the insulating layer is graphite felt, boiler tube and all
Graphite heating body is high purity graphite, and all heat insulators are graphite felt.
Further, all temperature sensors and all graphite heating bodies correspond the segmentation that boiler tube heats.
Beneficial effect：A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace of the utility model, polyacrylonitrile fibril is from one
The avoid holes of a end cap, which are penetrated, enters the boiler tube full of inert gas by the through-hole for sealing column cap and then to pass through another close
The through-hole of envelope column cap is pierced by from the avoid holes of another end cap, and the temperature of the segmentation that all graphite heating bodies heat boiler tube is from furnace
Formation temperature gradient is successively increased in one end that one end that pipe polyacrylonitrile fibril penetrates is pierced by boiler tube polyacrylonitrile fibril, owns
Graphite heating body is divided into several warm areas by all heat insulators to the segmentation that boiler tube heats, by all temperature sensors to every
A warm area is measured in real time, controller by each temperature sensor transmit come electric signal judgement, pass through contactor
With the working efficiency of driver control graphite heating body and several throttle valves, air separation plant by inert gas from polyacrylonitrile original
Appendix is filled with boiler tube, gas transmission on the end cap that inert gas is pierced by by air separation plant from polyacrylonitrile fibril on the end cap that silk penetrates
Pipe sucks back inert gas, and the gas that space division is sucked back by compression after separating inert gas, continues to be filled in boiler tube,
Guarantee that the inert gas in boiler tube is full of entire boiler tube always, the warm area of superhigh temperature graphitizing furnace is designed into 2 to 6 each temperature
Area's temperature independent detection and control keep the control of the temperature between each warm area independent, avoid by graphite heating body and heat insulator
String temperature between warm area with set temperature gradient and can be kept constant between each warm area.The total temperature gradient of 2 to 6 warm areas can
To realize the reasonable temperature gradient between 2000 degree to 3000 degree, different temperature gradients influences graphited quality, mostly warm
The flexibility that area is conducive to the control of graphitizing process temperature and adjusts, highly beneficial to being graphitized, heat insulator can be to avoid difference
Warm area influences each other, and the inert gas of boiler tube is to polyacrylonitrile fibril real-time guard under ultra-high temperature condition.
Detailed description of the invention
Fig. 1 is the schematic perspective view one of the utility model；
Fig. 2 is the schematic perspective view two of the utility model；
Fig. 3 is the top view of the utility model；
Fig. 4 is cross-sectional view of the Fig. 3 along line A-A；
Fig. 5 is the schematic perspective view of the utility model boiler tube sealing mechanism, insulating layer and boiler tube；
Fig. 6 is the Standard schematic diagram of the boiler tube of the utility model, heating mechanism and heat-shield mechanism；
Fig. 7 is the boiler tube of the utility model and the assembling schematic diagram of temperature sensor；
Description of symbols：Boiler tube 1, heating mechanism 2, graphite heating body 2a, heat-shield mechanism 3, heat insulator 3a, metal shell
4, insulating layer 4a4a, cooling copper tube 5, throttle valve 6, boiler tube sealing mechanism 7 seal column cap 7a, through-hole 7a1, rotary table type hole 7a2,
Fixing seat 7b, end cap 7c, appendix 7c1, avoid holes 7c2, temperature sensor 8.
Specific embodiment
With reference to the accompanying drawings of the specification and embodiment, specific embodiment of the utility model is described in further detail：
A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace, includes horizontally disposed boiler tube shown in referring to Figure 1 to Figure 7
1, temperature control system, the heating mechanism 2 and heat-shield mechanism 3 that are set on boiler tube 1, heating mechanism 2 includes that several are used for
Respectively to the graphite heating body 2a, all graphite heating body 2a of 1 segmentally heating of boiler tube along the axis equidistantly distributed of boiler tube 1,
Heat-shield mechanism 3 includes several heat insulators 3a, and all heat insulator 3a are arranged in one by one respectively between two graphite heating body 2a,
Temperature control system includes that several detect each graphite heating body 2a to the temperature sensor 8 of 1 heating temperature of boiler tube respectively
And controller, all temperature sensors 8 are electrically connected with controller, are filled with inert gas, the heating in the boiler tube 1
Mechanism 2 and 3 outer sheath of heat-shield mechanism are equipped with rectangular configuration and its length direction metal shell 4 parallel with boiler tube axis.
Working principle：A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace of the utility model, polyacrylonitrile fibril is from one
The avoid holes 7c2 of a end cap 7c, which is penetrated, enters the then process of the boiler tube 1 full of inert gas by the through-hole 7a1 for sealing column cap 7a
The through-hole 7a1 of another sealing column cap 7a is pierced by from the avoid holes 7c2 of another end cap 7c, and all graphite heating body 2a are to furnace
One end that the temperature for the segmentation that pipe 1 heats is pierced by from one end that 1 polyacrylonitrile fibril of boiler tube penetrates to 1 polyacrylonitrile fibril of boiler tube
Successively increase formation temperature gradient, if all graphite heating body 2a are divided into the segmentation that boiler tube 1 heats by all heat insulator 3a
Dry warm area, is measured in real time each warm area by all temperature sensors 8, controller passes through to each temperature sensor
The judgement for the electric signal that 8 transmission come, passes through the work of contactor and driver control graphite heating body 2a and several throttle valves 6
Appendix 7c1 on end cap 7c that inert gas is penetrated from polyacrylonitrile fibril is filled with boiler tube 1 by efficiency, air separation plant, and space division is set
Standby that inert gas is sucked back to appendix 7c1 on end cap 7c that inert gas is pierced by from polyacrylonitrile fibril, space division passes through pressure
Contract the gas sucked back, after inert gas is separated, continues to be filled in boiler tube 1, guarantees that the inert gas in boiler tube 1 is full of always
Entire boiler tube 1.
It further include having water-cooling system, the water-cooling system includes 5 He of cooling copper tube that several are laid on outside metal shell 4
Several throttle valves 6, all cooling copper tubes 5 are connected to one by one with all throttle valves 6, when graphite heating body 2a temperature is higher than each temperature
Temperature as defined in area, temperature sensor 8 transmit an electric signal to controller, and corresponding graphite body is powered off and controlled by controller
Throttle valve 6 accelerates the flowing velocity of water in cooling copper tube 5, and temperature is stablized within the specified temperature range.
1 both ends of boiler tube are provided with boiler tube sealing mechanism 7, and boiler tube sealing mechanism 7 includes and 1 threaded one end of boiler tube
The axis of the sealing column cap 7a of connection, sealing column cap 7a are overlapped with the axis of boiler tube 1, and the cylindrical side of sealing column cap 7a is provided with solid
Reservation 7b, fixing seat 7b are fixedly connected with metal shell 4 close to one end of fixing seat 7b, seal column cap 7a and fixing seat 7b for furnace
The end part seal of pipe 1 is lived, and guarantees the sealing effect of the inert gas in boiler tube 1.
The sealing column cap 7a is provided with the through-hole 7a1 passed through for fiber filament, and sealing column cap 7a is set far from one end of boiler tube 1
It is equipped with the end cap 7c for cylindrical type, the axis of end cap 7c is overlapped with the axis of through-hole 7a1, and the cylindrical side of end cap 7c is provided with defeated
Send the appendix 7c1 of inert gas, end cap 7c that one end of sealing column cap 7a is provided with the avoid holes passed through for fiber filament
7c2, when polyacrylonitrile fibril penetrates boiler tube 1, the end cap that 1 polyacrylonitrile fibril of boiler tube is penetrated out of through-hole 7a1 out of through-hole 7a1
Appendix 7c1 on 7c is filled with inert gas for gas barrier outside, while inert gas enters boiler tube 1 with polyacrylonitrile fibril
It is interior, when polyacrylonitrile fibril carbonization completes to be pierced by from the end cap 7c of 1 other end of boiler tube that some inert gases, air separation plant can be taken out of
The air for adulterating inert gas is siphoned away from close to polyacrylonitrile fibril from the appendix 7c1 that boiler tube 1 is pierced by the other end, then will
Inert gas is separated after the air compression siphoned away and is continued to use.
The appendix 7c1 is connected with to by the air separation plant of inert gas and air separation, two appendix 7c1 divide
It is not connected to the suction end of air separation plant and outlet side, air separation plant is the prior art, is not shown in the figure, and air separation plant will adulterate
The air of inert gas siphons away from close to polyacrylonitrile fibril from the appendix 7c1 that boiler tube 1 is pierced by the other end, then will siphon away
Inert gas is separated after air compression, then enters in boiler tube 1 from another appendix 7c1, realizes the circulation of inert gas
It uses.
The sealing column cap 7a is located at through-hole 7a1 and one end of proximal cover 7c is provided with rotary table type hole 7a2, rotary table type hole
The axis of 7a2 is overlapped with the axis of sealing column cap 7a, and the stub end of rotary table type hole 7a2 is arranged by proximal cover 7c, is convenient for indifferent gas
Body enters boiler tube 1.
The temperature sensor 8 is the anti-oxidant thermocouple sensor of superhigh temperature, for example, sky is held up by Longkou City holds up a day superhigh temperature material
Expect that the QKQT of equipment Co., Ltd production, all graphite heating body 2a pass through contactor respectively and controller is electrically connected, throttling
Valve 6 is electrically connected by driver and controller, and all graphite heating body 2a of 8 real-time detection of temperature sensor heat boiler tube 1
Temperature, be then transported on an electric signal to controller, controller controls all graphite heating bodies by all contactors respectively
The on-off of the power supply line of 2a.
The inside of the metal shell 4 is provided with insulating layer 4a, and the insulating layer 4a is graphite felt, boiler tube 1 and all stones
Black calandria 2a is high purity graphite, and all heat insulator 3a are graphite felt, and graphite heating body 2a and boiler tube 1 all use high-purity stone
Ink, insulating layer 4a have selected high-grade graphite felt, and high purity graphite has high intensity, high density, high-purity, high stability, structure
The features such as dense uniform, high temperature resistant, conductivity are high, wearability is good, easy processing, graphite felt had both been used as the support of boiler tube 1, also conduct
Temperature insulating material between warm area, graphite felt have chosen high quality graphite felt.
All temperature sensor 8 and all graphite heating body 2a correspond the segmentation that boiler tube 1 heats, to realize
Multiple warm area temperature are adjusted in 2000 degree to 3000 degree reasonable temperature gradients, and all warm areas use identical graphite heating body
2a and graphite-pipe material.The temperature control of warm area uses digital display intelligent temperature control system, and all temperature sensors 8 are completed in high precision
Measuring and controlling temp process, each warm area can independently heat up according to given heating curve, and can store different technique heating curves, temperature
Degree measurement uses far infrared heat radiation pyrometer laterally vertical thermometric, and from 1000~3000 degree, temperature measurement accuracy reaches temperature-measuring range
0.2~0.75%.To reduce influence of the protective gas to different warm areas, superhigh temperature graphite furnace is protected using argon gas, reduces inertia
Gas usage.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions out, thus it is any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent
Variation and modification, in the range of still falling within the technical solution of the utility model.
Claims (9)
1. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace, it is characterised in that：It include horizontally disposed boiler tube (1), temperature
Control system, the heating mechanism (2) being set on boiler tube (1) and heat-shield mechanism (3), heating mechanism (2) include several use
In the graphite heating body (2a) respectively to boiler tube (1) segmentally heating, all graphite heating bodies (2a) along boiler tube (1) axis etc.
Spacing distribution, heat-shield mechanism (3) includes several heat insulators (3a), and two stones are arranged in all heat insulators (3a) one by one respectively
Between black calandria (2a), temperature control system includes that several detect each graphite heating body (2a) to boiler tube (1) respectively
The temperature sensor (8) and controller of heating temperature, all temperature sensors (8) are electrically connected with controller, the boiler tube
(1) inert gas is filled in, the heating mechanism (2) and heat-shield mechanism (3) outer sheath are equipped with rectangular configuration and its length side
To the metal shell (4) parallel with boiler tube axis.
2. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace according to claim 1, it is characterised in that：It further include having water
Cooling system, the water-cooling system include that several are laid on the outer cooling copper tube (5) of metal shell (4) and several throttle valves
(6), all cooling copper tubes (5) are connected to one by one with all throttle valves.
3. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace according to claim 2, it is characterised in that：The boiler tube
(1) both ends are provided with boiler tube sealing mechanism (7), boiler tube sealing mechanism (7) include connect with boiler tube (1) threaded one end it is close
It seals column cap (7a), the axis of sealing column cap (7a) is overlapped with the axis of boiler tube (1), and the cylindrical side of sealing column cap (7a) is provided with solid
Reservation (7b), fixing seat (7b) are fixedly connected with metal shell (4) close to the one end of fixing seat (7b).
4. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace according to claim 3, it is characterised in that：The sealing column
Head (7a) is provided with the through-hole (7a1) passed through for fiber filament, and sealing column cap (7a) is provided with far from the one end of boiler tube (1) for justifying
The axis of the end cap (7c) of column type, end cap (7c) is overlapped with the axis of through-hole (7a1), and the cylindrical side of end cap (7c) is provided with conveying
The appendix (7c1) of inert gas, end cap (7c) are provided with the evacuation passed through for fiber filament far from one end of sealing column cap (7a)
Hole (7c2).
5. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace according to claim 4, it is characterised in that：The appendix
(7c1) is connected with to by the air separation plant of inert gas and air separation, two appendixs (7c1) respectively with air separation plant
Suction end is connected to outlet side.
6. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace according to claim 5, it is characterised in that：The sealing column
Head (7a) is located at through-hole (7a1) and is provided with rotary table type hole (7a2) by the one end of proximal cover (7c), the axis of rotary table type hole (7a2)
It is overlapped with the axis of sealing column cap (7a), the stub end of rotary table type hole (7a2) is arranged by proximal cover (7c).
7. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace according to claim 6, it is characterised in that：The temperature passes
Sensor (8) is the anti-oxidant thermocouple sensor of superhigh temperature, and all graphite heating bodies (2a) pass through contactor and controller electricity respectively
Property connection, throttle valve (6) is electrically connected by driver and controller.
8. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace according to claim 7, it is characterised in that：Outside the metal
It is provided on the inside of shell (4) insulating layer (4a), the insulating layer (4a) is graphite felt, boiler tube (1) and all graphite heating bodies
(2a) is high purity graphite, and all heat insulators (3a) are graphite felt.
9. a kind of multi-temperature zone continous way superhigh temperature graphitizing furnace according to claim 8, it is characterised in that：All temperature
Degree sensor (8) and all graphite heating bodies (2a) correspond the segmentation that boiler tube (1) heats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820218648.XU CN208166581U (en) | 2018-02-07 | 2018-02-07 | A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820218648.XU CN208166581U (en) | 2018-02-07 | 2018-02-07 | A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace |
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| Publication Number | Publication Date |
|---|---|
| CN208166581U true CN208166581U (en) | 2018-11-30 |
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ID=64384362
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820218648.XU Expired - Fee Related CN208166581U (en) | 2018-02-07 | 2018-02-07 | A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace |
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| Country | Link |
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| CN (1) | CN208166581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101047A (en) * | 2018-02-07 | 2018-06-01 | 安徽欣尔特新材料科技有限公司 | A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace |
-
2018
- 2018-02-07 CN CN201820218648.XU patent/CN208166581U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101047A (en) * | 2018-02-07 | 2018-06-01 | 安徽欣尔特新材料科技有限公司 | A kind of multi-temperature zone continous way superhigh temperature graphitizing furnace |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 Termination date: 20190207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |