CN205635891U - Novel carbon fibre precursor high pressure steam draft machine - Google Patents
Novel carbon fibre precursor high pressure steam draft machine Download PDFInfo
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- CN205635891U CN205635891U CN201620182715.8U CN201620182715U CN205635891U CN 205635891 U CN205635891 U CN 205635891U CN 201620182715 U CN201620182715 U CN 201620182715U CN 205635891 U CN205635891 U CN 205635891U
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Abstract
The utility model provides a novel carbon fibre precursor high pressure steam draft machine, include the draft jar body, labyrinth seals box, the draft jar body is equipped with the slit that is used for the silk bundle to pass through, and the internal bottom of draft jar is equipped with the low pressure steam admission line, and the top of low pressure steam admission line is equipped with porous break plate, and the entrance point and the exit end of the draft jar body are equipped with the labyrinth seals box respectively, are equipped with labyrinth seals structure and lower labyrinth seals structure in the labyrinth seals box, are equipped with the clearance between upper and lower labyrinth seals structure, form silk bundle operation passageway. This kind of novel carbon fibre precursor high pressure steam draft machine, the draft multiplying power is high, and disconnected silk is few, and the silk bundle percent of pass is high, and pressurize nature is good, can effectively improve precursor orientation degree and degree of crystallinity, is the key equipment that makes high performance precursor for the carbon fiber.
Description
Technical field
This utility model relates to a kind of novel carbon fiber precursor high steam drafting machine.
Background technology
Carbon fiber is phosphorus content inorganic polymer fiber more than 90%, in addition to there is high temperature resistant, rub resistance, the conduction of general carbon materials, heat conduction and the characteristic such as corrosion-resistant, also there is soft machinability, light weight, specific strength and specific modulus are high, it is a new generation's reinforcing material, is widely used in sports apparatus, weaving, chemical machinery, medical science, military affairs, and numerous hard-core technology field.
Polyacrylonitrile-based carbon fibre yield accounts for more than the 80% of various carbon fibre material, but the bottleneck that PAN precursor quality is still in carbon fiber development course.
Polymerization stock solution is as-spun fibre through coagulation forming, and after washing drawing-off, compacting by drying and oiling, tow enters into steam drafting machine, again carries out high magnification drawing-off, is greatly improved the tow degree of orientation and degree of crystallinity, strengthens the physical and mechanical properties of tow.
On equipment, high steam drafting process is the critical process producing carbon fiber precursor, domestic steam drafting equipment fluctuation of service, sealing is poor, making vapor stream and temperature generation fluctuation in drawing-off tank body, be easily generated lousiness and fracture of wire, production line productivity reduces, production cost improves, affect high drafting process, thus reduce the degree of orientation of precursor, degree of crystallinity, make precursor physicochemical property reduce accordingly, and make dispersion degree increase, finally affect the mechanical property of carbon fiber.
In technique, the most external method using high temperature and high pressure steam, and the drawing-off under the steam of lower temperature of domestic most carbon fiber producers, so the hydrone of high temperature can not be made to enter into sufficiently uniformly in silk, solvent molecule can not get fully discharging, and after high power steam drafting, fiber inside aperture becomes big, number becomes many, the cumulative volume of fiber inside aperture increases considerably, and the degree of orientation the most significantly declines simultaneously, and high power steam drafting process fails to be effectively improved the physicochemical property of fiber.Under low temperature condition, (≤130 DEG C) superheated steam stretches 2.5～3 times, though fiber micropore quantity reduces, but microcell length is the longest, is relatively large in diameter, and the high-performance carbon fibre quality that this precursor substantially prepares is unstable.
Utility model content
The purpose of this utility model is the deficiency overcoming existing drawing-off tank body equipment, a kind of cheap, compact conformation, easy to operate is provided, safe and reliable, run draft ratio in steam pressure height, running high, fracture of wire is few, percent of pass is high, and pressurize is good, can be effectively improved the steam drafting equipment of the precursor degree of orientation, degree of crystallinity and precursor row yielding.
Technical solution of the present utility model is:
A kind of novel carbon fiber precursor high steam drafting machine, including drawing-off tank body, labyrinth seal casing, drawing-off tank body is provided with the slit passed through for tow, drawing-off tank body inner bottom part is provided with low-pressure steam admission line, low-pressure steam admission line be arranged over perforated distributor, the entrance point of drawing-off tank body and the port of export are respectively equipped with labyrinth seal casing, it is provided with labyrinth seal structure and lower labyrinth seal structure in labyrinth box body, is provided with gap between upper labyrinth seal structure and lower labyrinth seal structure and forms tow operation passage.
Further, low-pressure steam admission line is provided with some ventholes, and venthole is located at the lower section of tow, and venthole is towards the bottom of drawing-off tank body.
Further, upper labyrinth seal structure and lower labyrinth seal structure include the labyrinth seal panel of some spread configurations respectively, and adjacent labyrinth seal panel is provided with airspace, and labyrinth seal panel includes the flank of tooth and the groove being arranged alternately successively.
Further, the flank of tooth of upper labyrinth seal structure is the most relative with the flank of tooth of lower labyrinth seal structure, and the groove of upper labyrinth seal structure is the most relative with the groove of lower labyrinth seal structure.
Further, the import and export of labyrinth seal casing are provided with sub-wire device, and the import and export of labyrinth seal casing are additionally provided with the suspended hood oozing out excessive gas for sucking-off, and suspended hood is communicated with aspiration channel；The frame of labyrinth seal casing is provided with limit groove, is provided with sealing rubber strip in the groove of limit.
Further, the external heat-preservation cotton of wrapping up respectively of drawing-off tank body, labyrinth box, the sidepiece of labyrinth seal casing is provided with protective baffle plate, and labyrinth seal casing is located on box frame, and box frame is located on the draw-in groove slide rail of base.
Further, labyrinth seal casing uses openable labyrinth seal casing, labyrinth seal casing is controlled to open by controller, labyrinth seal casing includes upper box and lower box, labyrinth seal structure it is provided with in upper box, the sidepiece being provided with lower labyrinth seal structure, upper box and lower box in lower box is flexibly connected by connecting shaft.
Further, labyrinth seal casing fixes labyrinth seal panel by sealed screw, sealing nut, it is provided with high temperature resistant pad between sealing nut and labyrinth seal casing, between labyrinth seal panel and labyrinth seal casing, is provided with the metallic gasket running channel height for regulating tow.
Further, being provided with induction apparatus at the faying face of upper labyrinth seal structure and lower labyrinth seal structure, induction apparatus is chain with the switching control pilot of low-pressure steam admission line, when drawing-off tank body does not completely closes, the switching control pilot of low-pressure steam admission line is closed, and makes to be passed through steam.
Further, labyrinth seal casing is provided with hydraulic open-close black box, hydraulic open-close black box includes hydraulic cylinder, some seal case locking members, securing member, securing member includes some anchorage bars, regulation bolt and has contact with, the base of hydraulic cylinder is flexibly connected lower box, and the piston rod of hydraulic cylinder is flexibly connected anchorage bar, and regulation bolt connects labyrinth seal panel and anchorage bar, the end of anchorage bar is respectively equipped with has contact with, and seal case locking member is provided with and connects, for correspondence, the through hole having contact with.
The beneficial effects of the utility model are:
One, for compared to prior art, this utility model is installed owing to labyrinth seal panel have employed modularity processing, and processing cost substantially reduces, and machining accuracy improves, and installs and adjustment is convenient.And in running, the simpler convenience of adjustment in drawing-off tank body gap.
Two, steam drafting machine of the present utility model, labyrinth seal structure employing mechanical interlocking, and the pipeline valve of logical steam and locking device are chain, and safety is high.
Three, this kind of novel carbon fiber precursor high steam drafting machine, steam inlet design and porous web mounting means, in making drawing-off tank body, airflow field is uniform, reduces the impact running tow.
Four, steam drafting machine labyrinth seal panel of the present utility model, reasonable in design, and in running, airflow field is stable, and pressurize is good, and each point temperature fluctuation is little, and fracture of wire is few.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment novel carbon fiber precursor high steam drafting machine；
Fig. 2 is the side view of drawing-off tank body in embodiment.
Fig. 3 is that the A of Fig. 1 is to side view.
Fig. 4 is upper box in embodiment, the structural representation of lower box unlatching.
Fig. 5 is the top view of labyrinth seal panel in embodiment.
Fig. 6 is embodiment low pressure steam path schematic diagram.
Wherein: 1-drawing-off tank body, 2-labyrinth seal casing, 3-imports and exports sub-wire device, 4-slit, 5-low-pressure steam admission line, 6-suspended hood, 7-aspiration channel, 8-bearing, 9-manhole, 10-flange, 11-box frame, 12-base, 13-slide rail, 14-induction apparatus, 15-Pressure gauge, 16-thermometer；
21-upper box, 22-lower box, 23-connecting shaft, 24-labyrinth seal panel, 25-tow runs passage, and 26-hydraulic cylinder, 27-seal case locking member, 28-anchorage bar, 29-regulates bolt, and 210-has contact with, 211-sealing rubber strip, 217-protective baffle plate.
Detailed description of the invention
Describe preferred embodiment of the present utility model below in conjunction with the accompanying drawings in detail.
Embodiment
A kind of novel carbon fiber precursor high steam drafting machine, such as Fig. 1, including drawing-off tank body 1, labyrinth seal casing 2, drawing-off tank body 1 is located on bearing 8, and drawing-off tank body 1 is provided with the slit 4 passed through for tow, such as Fig. 2.Drawing-off tank body 1 inner bottom part is provided with low-pressure steam admission line 5, low-pressure steam admission line 5 be arranged over perforated distributor, the entrance point of drawing-off tank body 1 and the port of export are respectively equipped with labyrinth seal casing 2, and drawing-off tank body 1 is located in the middle of two labyrinth seal casings 2, flange 10 connect.It is provided with labyrinth seal structure and lower labyrinth seal structure in labyrinth seal casing 2, is provided with gap between upper labyrinth seal structure and lower labyrinth seal structure and forms tow operation passage 25.
This kind of novel carbon fiber precursor high steam drafting machine, compact conformation, deft design, economic and practical, easy to operate, maintenance is quick, safe and reliable, in running, draft ratio is high, fracture of wire is few, and tow percent of pass is high, and pressurize is good, the precursor degree of orientation and degree of crystallinity can be effectively improved, be the key equipment preparing precursor used for high-performance carbon fibre.
Perforated distributor makes airflow field flowing uniformly, it is to avoid directly impact tow.Low-pressure steam admission line 5 is provided with some ventholes, venthole is located at the lower section of tow, and venthole is towards the bottom of drawing-off tank body 1, steam inlet design and perforated distributor mounting means, in making drawing-off tank body 1, airflow field is uniform, reduces the impact running tow.Steam drafting machine labyrinth seal panel 24 of the present utility model, reasonable in design, in running, airflow field is stable, and each point temperature fluctuation is little, and fracture of wire is few.
Upper labyrinth seal structure and lower labyrinth seal structure include the labyrinth seal panel 24 of some spread configurations respectively, and adjacent labyrinth seal panel 24 is provided with airspace, and labyrinth seal panel 24 includes the flank of tooth and the groove being arranged alternately successively.The flank of tooth of upper labyrinth seal structure is the most relative with the flank of tooth of lower labyrinth seal structure, and the groove of upper labyrinth seal structure is the most relative with the groove of lower labyrinth seal structure.
The metallic gasket 215 running passage 25 height for regulating tow it is provided with between labyrinth seal panel 24 and labyrinth seal casing 2.In order to adapt to produce the precursor of different size kind, different K number precursor, thickness is different, and counter extensioin tank body 1 clearance requirement is different, and preferably equipped with metallic gasket 215 between labyrinth seal panel 24 and labyrinth seal casing 2, pad plays the effect of regulation labyrinth seal clearance.
Such as Fig. 3, labyrinth seal casing 2 is provided with import and export sub-wire device 3, and importing and exporting sub-wire device 3 can regulate up and down, spins a tow for the most each.The import and export of labyrinth seal casing 2 are additionally provided with the suspended hood 6 oozing out excessive gas for sucking-off, and suspended hood 6 is communicated with aspiration channel 7, oozes out excessive gas to sop up from labyrinth seal.Such as Fig. 5, the frame of labyrinth seal casing 2 is provided with limit groove, is provided with sealing rubber strip 211 in the groove of limit, and when upper and lower labyrinth seal structure is closed, sealing rubber strip 211 can seal gas after being compressed, and does not make gas spill from casing both sides.
Wrap up heat-preservation cotton respectively outside drawing-off tank body 1, labyrinth seal casing 2, play insulation and prevent scald effect.The sidepiece of labyrinth seal casing 2 is provided with protective baffle plate 217, and such as Fig. 2, after preventing steam leakage, directly ejection hurts fore side personnel.
Such as Fig. 1, labyrinth seal casing 2 is located on box frame 11, and box frame 11 is located on the draw-in groove slide rail 13 of base 12.Expanded by heating after drawing-off tank body 1 is passed through steam, labyrinth seal casing 2 is extruded to two ends, labyrinth seal casing 2 can slide in the draw-in groove slide rail 13 of base 12 along with box frame 11, it is ensured that the equipment not crimp because of stress, it is ensured that the elaboration of equipment and operation stability.
The various components of machine of steam drafting machine of the present utility model are all arranged on base 12 workbench, equipment stability in the large is strengthened, the level of base 12 workbench can also be adjusted simultaneously, adjust the level of drawing-off tank body 1 labyrinth seal work surface, to improve the elaboration during operation of equipment.Base 12 in a pre-installation, below terrace for reinforced concrete structure to prevent land subsidence, to base 12 adjustment level after installation.
Such as Fig. 3 and Fig. 4, labyrinth seal casing 2 uses openable labyrinth seal casing 2, labyrinth seal casing 2 is controlled to open by controller, labyrinth seal casing 2 includes upper box 21 and lower box 22, it is provided with labyrinth seal structure in upper box 21, being provided with lower labyrinth seal structure in lower box 22, the sidepiece of upper box 21 and lower box 22 is flexibly connected by connecting shaft 23.
Such as Fig. 2, it is provided with induction apparatus 14 at the faying face of upper labyrinth seal structure and lower labyrinth seal structure, induction apparatus 14 is chain with the switching control pilot of low-pressure steam admission line 5, when drawing-off tank body 1 does not completely closes, the switching control pilot of low-pressure steam admission line 5 is closed, such as Fig. 6, make to be passed through steam.
Fig. 6 is steam passage schematic diagram overall in embodiment, after steam enters drawing-off tank body 1, respectively through the labyrinth seal casing 2 of both sides, by suspended hood 6 sucking-off after aspiration channel 7, then derives through blower fan.
Labyrinth seal casing 2 is provided with hydraulic open-close black box, hydraulic open-close black box includes hydraulic cylinder 26, some seal case locking members 27, securing member, securing member includes some anchorage bars 28, regulation bolt 29 and has contact with 210, the base of hydraulic cylinder 26 is flexibly connected lower box 22, the piston rod of hydraulic cylinder 26 is flexibly connected anchorage bar 28, regulation bolt 29 connects labyrinth seal panel 24 and anchorage bar 28, the end of anchorage bar 28 is respectively equipped with has contact with 210, and seal case locking member 27 is provided with and connects the through hole having contact with 210 for correspondence.
Labyrinth seal casing 2 realizes sealing fastening, particularly as follows: bounced back by the piston rod of hydraulic cylinder 26, drives securing member to open, thus realizes the unlatching operation of upper box 21；By stretching out of the piston rod of hydraulic cylinder 26, drive securing member Guan Bi, it is achieved the closed procedure of upper box 21.
Have contact with 210 and coordinate locking when enabling upper and lower labyrinth seal structure to close with seal case locking member 27.Anchorage bar 28 is arranged in order setting, and straight-bar can be used to pass anchorage bar 28, makes each seal case locking member 27 uniform force.Regulation bolt 29 is by the distance of regulation labyrinth seal panel 24 with anchorage bar 28, it is possible to the degree of tightness of regulation seal case check lock lever, makes labyrinth seal panel 24 uniform force everywhere.
In drawing-off tank body 1, low-pressure steam admission line 5 is connected with drawing-off tank body 1 central bottom, after low-pressure steam admission line 5 enters tank interior, low-pressure steam admission line 5 has multiple venthole, venthole be positioned at tow run below, and venthole Open Side Down, above low-pressure steam admission line 5, have a perforated distributor, make airflow field flowing uniformly, it is to avoid directly impact tow.Perforated distributor horizontal positioned, is positioned at tow and runs below passage 25 5～20cm, and perforated distributor length is isometric with drawing-off tank body 1, perforated distributor width ＜ drawing-off tank body 1 diameter 5～30cm.
Drawing-off tank body 1 labyrinth seal, particularly as follows: it is 2000-2500mm that drawing-off tank body 1 imports and exports each sealing area overall length；Import and export each labyrinth seal region to be combined by 10-15 labyrinth seal panel 24；Labyrinth seal panel 24 is embedded in labyrinth seal casing 2.
This kind of novel carbon fiber precursor high steam drafting machine, drawing-off tank body 1 is that slit 4 formula seals.Drawing-off tank body 1 can not be opened up and down.The operating surface side of drawing-off tank body 1 has 1 manhole 9, and manhole 9 radius is 30～50cm.Lousiness in manhole 9 is mainly used in labor cleaning's drawing-off tank body 1 and on porous web.
Labyrinth seal panel 24 installation method is: equipped with metallic gasket between labyrinth seal panel 24 and labyrinth seal casing 2, and pad plays the effect of regulation labyrinth seal clearance；Labyrinth seal panel 24 pushes from labyrinth seal casing 2 draw-in groove successively, end with metal strip of paper used for sealing and sealed screw fastening；High temperature resistant pad is had to prevent gas leakage between sealed screw；Upper labyrinth seal structure is the most relative with labyrinth seal panel 24 flank of tooth of lower labyrinth seal structure, and groove is the most relative with groove.
Labyrinth seal panel 24 is preferably stainless steel；Labyrinth seal panel 24 flank of tooth and the polishing of groove domestic demand, smoothness requirements is mirror finish, Ra ＜ 0.02mm；The sealed screw 212 of fixing labyrinth seal panel 24 is preferably hard carbon steel material, and its temperature distortion is little, selects the easy temperature distortion of rustless steel to cause stripped thread stuck, thus causes non-dismountable；Labyrinth seal panel 24 Gear shape process flatness requirement≤0.05mm, labyrinth seal panel 24 back side processing flatness requirement≤0.05mm.
Before using, upper labyrinth seal structure and lower labyrinth seal structure carry out clearance check and ensure uniformity.
The design of drawing-off tank body 1 air pressure security seal is as follows: equipped with Pressure gauge 15 and thermometer 16 on drawing-off tank body 1, temperature and pressure signal the most incoming PLC control room shows.Pressure sensitive display controller, seal case hydraulic open-close black box chain, as pressure ＞ 0bar in drawing-off tank body 1, labyrinth seal casing 2 can not be opened, as pressure=0bar in drawing-off tank body 1, on operating board, display lamp is transferred to green by redness, and labyrinth seal casing 2 can be opened.
Should be appreciated that; above-described embodiment is only preferred embodiment of the present utility model; limit protection domain of the present utility model the most according to this; protection domain of the present utility model is only limited by claims; thus: all equivalence changes made according to structure of the present utility model, shape, principle, within being all covered by protection domain of the present utility model.
Above in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that art those of ordinary skill is possessed, it is also possible to make a variety of changes on the premise of without departing from this utility model objective.
Claims (9)
1. a novel carbon fiber precursor high steam drafting machine, it is characterized in that: include drawing-off tank body, labyrinth seal casing, drawing-off tank body is provided with the slit passed through for tow, drawing-off tank body inner bottom part is provided with low-pressure steam admission line, low-pressure steam admission line be arranged over perforated distributor, the entrance point of drawing-off tank body and the port of export are respectively equipped with labyrinth seal casing, it is provided with labyrinth seal structure and lower labyrinth seal structure in labyrinth box body, is provided with gap between upper and lower labyrinth seal structure and forms tow operation passage.
2. novel carbon fiber precursor high steam drafting machine as claimed in claim 1, it is characterised in that: low-pressure steam admission line is provided with some ventholes, and venthole is located at the lower section of tow, and venthole is towards the bottom of drawing-off tank body.
3. novel carbon fiber precursor high steam drafting machine as claimed in claim 1, it is characterised in that: upper labyrinth seal structure and lower labyrinth seal structure include the labyrinth seal panel of some spread configurations respectively, and upper and lower labyrinth seal panel is symmetrical arranged the flank of tooth and groove.
4. novel carbon fiber precursor high steam drafting machine as claimed in claim 3, it is characterized in that: the flank of tooth of upper labyrinth seal structure is the most relative with the flank of tooth of lower labyrinth seal structure, the groove of upper labyrinth seal structure is the most relative with the groove of lower labyrinth seal structure, it is ensured that steam pressurize ability.
5. the novel carbon fiber precursor high steam drafting machine as described in any one of claim 1-4, it is characterized in that: the import and export of labyrinth seal casing are provided with sub-wire device, the import and export of labyrinth seal casing are additionally provided with the suspended hood oozing out excessive gas for sucking-off, suspended hood connection suction nozzle；The frame of labyrinth seal casing is provided with limit groove, is provided with sealing rubber strip in the groove of limit.
6. the novel carbon fiber precursor high steam drafting machine as described in any one of claim 1-4, it is characterized in that: drawing-off tank body, labyrinth box are external wraps up heat-preservation cotton respectively, the sidepiece of labyrinth seal casing is provided with protective baffle plate, labyrinth seal casing is located on bedframe, and casing and bedframe can move on slide rail.
7. the novel carbon fiber precursor high steam drafting machine as described in any one of claim 1-4, it is characterized in that: labyrinth seal casing uses openable labyrinth seal casing, labyrinth seal casing is controlled to open by controller, labyrinth seal casing includes upper box and lower box, labyrinth seal structure it is provided with in upper box, the sidepiece being provided with lower labyrinth seal structure, upper box and lower box in lower box is flexibly connected by connecting shaft.
8. novel carbon fiber precursor high steam drafting machine as claimed in claim 7, it is characterized in that: labyrinth seal casing fixes labyrinth seal panel by sealed screw, sealing nut, it is provided with high temperature resistant pad between sealing nut and labyrinth seal casing, between labyrinth seal panel and labyrinth seal casing, is provided with the metallic gasket running channel height for regulating tow.
9. novel carbon fiber precursor high steam drafting machine as claimed in claim 7, it is characterized in that: labyrinth seal casing is provided with hydraulic open-close black box, hydraulic open-close black box includes hydraulic cylinder, some seal case locking members, securing member, securing member includes some anchorage bars, regulation bolt and has contact with, the base of hydraulic cylinder is flexibly connected lower box, the piston rod of hydraulic cylinder is flexibly connected anchorage bar, regulation bolt connects labyrinth seal panel and anchorage bar, the end of anchorage bar is respectively equipped with has contact with, and seal case locking member is provided with and connects, for correspondence, the through hole having contact with.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620182715.8U CN205635891U (en) | 2016-03-10 | 2016-03-10 | Novel carbon fibre precursor high pressure steam draft machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620182715.8U CN205635891U (en) | 2016-03-10 | 2016-03-10 | Novel carbon fibre precursor high pressure steam draft machine |
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| CN205635891U true CN205635891U (en) | 2016-10-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970358A (en) * | 2016-03-10 | 2016-09-28 | 江苏恒神股份有限公司 | A novel carbon fiber protofilament high-pressure steam draw machine |
| CN113564751A (en) * | 2020-04-29 | 2021-10-29 | 天华化工机械及自动化研究设计院有限公司 | Carbonization furnace seal cavity structure |
-
2016
- 2016-03-10 CN CN201620182715.8U patent/CN205635891U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970358A (en) * | 2016-03-10 | 2016-09-28 | 江苏恒神股份有限公司 | A novel carbon fiber protofilament high-pressure steam draw machine |
| CN105970358B (en) * | 2016-03-10 | 2018-07-31 | 江苏恒神股份有限公司 | Carbon fibre precursor high steam drafting machine |
| CN113564751A (en) * | 2020-04-29 | 2021-10-29 | 天华化工机械及自动化研究设计院有限公司 | Carbonization furnace seal cavity structure |
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