CN102304775A - High-temperature high-pressure plasticizing device - Google Patents
High-temperature high-pressure plasticizing device Download PDFInfo
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- CN102304775A CN102304775A CN201110210816A CN201110210816A CN102304775A CN 102304775 A CN102304775 A CN 102304775A CN 201110210816 A CN201110210816 A CN 201110210816A CN 201110210816 A CN201110210816 A CN 201110210816A CN 102304775 A CN102304775 A CN 102304775A
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Abstract
The invention discloses a high-temperature high-pressure plasticizing device which comprises a high-pressure stainless steel shell, wherein a through cavity is defined in the high-pressure stainless steel shell, end glands are arranged outside the end tips of the two ends of the through cavity, the part of the high-pressure stainless steel shell, corresponding to the bottom part of the middle part of the through cavity, is provided with an air inlet, the parts of the high-pressure stainless steel shell, corresponding to the bottom parts of the two ends of the through cavity, are provided with air outlets, the middle part in the through cavity is provided with an intake pressure uniform distributor communicated with the air inlet, the two end parts in the through cavity are provided with pressure relief exhaust distributors communicated with the air outlet, labyrinth seal assemblies are arranged between the intake pressure uniform distributor and the pressure relief exhaust distributors and between the pressure relief exhaust distributors and the end glands, the centers of the labyrinth seal assemblies and the end glands are provided with silk holes. By the adoption of the high-temperature high-pressure plasticizing device, the air flow compact on processed chemical cellosilk bundles can be reduced greatly and vibration quantity is lowered; meanwhile, steam leakage rate at pressure relief ends and the silk holes can be reduced effectively, internal pressure guarantee of the cavity is met, the distribution gradient of pressure and temperature in the cavity is realized.
Description
Technical field
The present invention relates to a kind of plasticizing apparatus, relate in particular to a kind of HTHP plasticizing apparatus, belong to chemical fibre spinning preparing technical field, be specially adapted to realize when carbon fibre precursor is produced the super drawing function.
Background technology
Prepare in the process at chemical fibre, need in the end to carry out super drawing on the process section, improve the degree of orientation of fiber molecule chain, and then improve the mechanical property of fiber, realize that the equipment of this technology is referred to as the HTHP plasticizing apparatus.This device is a HTHP cavity, and chemical fibre passes wherein, under HTHP, realizes super drawing.Particularly when preparation high-performance carbon fibre precursor; More strict to this technological requirement; Need in the high-pressure chamber to feed the high pressure high-pressure steam, steam pressure remains on 0.5--0.6Mpa, and silk is advanced in requirement simultaneously and the wire outlet end mouth pressure can not be too high; Air velocity can not be too fast, otherwise can precursor be dispelled.
The equipment that is used at present this technology both at home and abroad mainly contains two kinds.A kind of is the HTHP case structure, promptly in the stainless steel casing, high pressure nozzle is set, and high temperature and high pressure steam directly heats chemical fibre through nozzle ejection back; Realization is to the high temperature of fiber plasticizing function, and this structure is because the direct high velocity jet of high temperature and high pressure steam on fibre bundle, causes fiber easily sharply shakes; Very easily produce fiber fracture of wire and lousiness phenomenon, and can't realize that high pressure keeps, it is very high that temperature can not reach; Air consumption is big, only is fit to the low power drawing-off of low molecular weight chemical fibre.Second kind of structure is tubular type high pressure drafting system, be about to high-pressure and high-temperature steam and directly feed in the stainless steel tube, and mouth of pipe necking down, the chemical fibre that needs to handle passes in the centre of pipe, is passed outside the pipe by the necking down mouth, realizes HTHP in the pipe.This device structure is simple, but pressure can not reach very high, and air consumption is bigger.
Summary of the invention
The objective of the invention is to satisfy the demand that carbon fibre precursor is produced, and a kind of HTHP plasticizing apparatus is provided in order to solve the synthtic price index of high pressure, high temperature, low consumption gas, low wire shake.
For realizing above-mentioned purpose, the technical scheme that the present invention takes is:
A kind of HTHP plasticizing apparatus; It comprises the high pressure Stainless Steel Shell; High pressure Stainless Steel Shell inside surrounds a cavity; Peripheral hardware end, termination, cavity two ends gland has air inlet on the high pressure Stainless Steel Shell of cavity mid portion bottom correspondence, has exhaust outlet on the high pressure Stainless Steel Shell of cavity two end portions bottom correspondence; The interior mid portion of cavity is equipped with the admission pressure uniform device and communicates with air inlet; The interior both ends of cavity are set up release exhaust distributor separately and are communicated with exhaust outlet, are provided with labyrinth seal assemblies between admission pressure uniform device and release exhaust distributor and between release exhaust distributor and end gland, and labyrinth seal assemblies, gland center, end are provided with the wire hole.
Described admission pressure uniform device is for offering the cylindrical shell that is uniformly distributed with aperture all around, and aperture communicates with air inlet all around.
Described release exhaust distributor is for offering the cylindrical shell that is uniformly distributed with aperture all around, and aperture communicates with exhaust outlet all around.
Described labyrinth seal assemblies has many groups, and every group of labyrinth seal assemblies is by the labyrinth seal piece, and labyrinth seal pad and labyrinth expanding block three parts form by said sequential combination.
Described high pressure Stainless Steel Shell is an open type, comprises cavity groove and top friction top, and top friction top and cavity groove are fixed and clamped through the top cover hold-down bolt, is provided with resistant to elevated temperatures sealing strip between cavity groove top and top friction top.
Described cavity groove cross section is " recessed " font.
HTHP plasticizing apparatus of the present invention, its labyrinth seal assemblies are fabricated structure, and every group of labyrinth seal assemblies is successively by the labyrinth seal piece, and labyrinth seal pad and labyrinth expanding block three parts are formed, and every group of labyrinth seal assemblies makes up in cavity in order arranges.Be provided with the wire hole, diameter 2-8mm, wire hole inwall mirror finish, material stainless steel in the middle of the labyrinth seal piece; The labyrinth seal pad is soft high temperature polymeric materials, can be the combination of silicon rubber, fluorubber, polytetrafluoroethylene (PTFE) or different materials, thickness 1-2mm; The labyrinth expanding block is a rigid body inner with holes, and expanding block hole, labyrinth is circular, diameter 20-100mm, material stainless steel.
HTHP plasticizing apparatus of the present invention; Its installation feature is a combined type, adds man-hour earlier with cavity and assembly completion of processing, then in cavity in order with after even gas distribution device, the black box assembled; The top friction top is built; Pretension is fixed, and utilizes cavity end gland bolt to hold out against all labyrinth seal assemblies again, compresses the top friction top at last.
HTHP plasticizing apparatus of the present invention is when work; Run through the aperture of chemical fibre tow in the middle of this device; High temperature and high pressure steam gets into cavity by air inlet; Get in the cloth air cavity through the qi-emitting hole around the admission pressure uniform device, high temperature and high pressure steam is through moving to both ends after the labyrinth seal assemblies, through being depressurized behind multistage labyrinth seal piece, labyrinth seal pad, the labyrinth expanding block; The most high temperature and high pressure steams that have been depressurized all press the back to be discharged by exhaust outlet through the release distributor of bottom, two ends of the present invention, and minute quantity gas is again through being discharged by the wire mouth after the labyrinth seal assemblies of end.Because the gas of discharging through the wire mouth seldom, thereby can significantly reduce being processed the gas shock of chemical fibre tow, reduces vibratory output.
Because the present invention has adopted multistage labyrinth seal assemblies, effectively reduces the steam leakage at release end and wire mouth place, satisfy inside cavity pressure and ensured, and realized the distribution gradient of cavity pressure and temperature, meet the demand of the soft drawing-off of chemical fibre.
Description of drawings
Fig. 1 HTHP plasticizing apparatus of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Wherein: 1. end cap hold-down bolt, 2. end gland, 3. top friction top, 4. sealing strip, 5 top cover hold-down bolts; 6. admission pressure uniform device, 7. air inlet, 8. cavity groove, 9. labyrinth expanding block; 10. labyrinth seal pad, 11. labyrinth seal pieces, 12. exhaust outlets, 13. release exhaust distributors.
The specific embodiment
Further specify below in conjunction with the accompanying drawing and the specific embodiment.
A kind of HTHP plasticizing apparatus; It comprises the high pressure Stainless Steel Shell; High pressure Stainless Steel Shell inside surrounds a cavity; Peripheral hardware end, termination, cavity two ends gland 2 has air inlet 7 on the high pressure Stainless Steel Shell of cavity mid portion bottom correspondence, has exhaust outlet 12 on the high pressure Stainless Steel Shell of cavity two end portions bottom correspondence; The interior mid portion of cavity is equipped with admission pressure uniform device 6 and communicates with air inlet 7; The interior both ends of cavity are set up release exhaust distributor 13 separately and are communicated with exhaust outlet 12, and admission pressure uniform device 6 and 13 in release exhaust distributor and release exhaust distributor 13 and 2 on end gland are provided with labyrinth seal assemblies, and labyrinth seal assemblies, end gland 2 centers are provided with the wire hole.
Described admission pressure uniform device 6 is for offering the cylindrical shell that is uniformly distributed with aperture all around, and aperture communicates with air inlet 7 all around.
Described release exhaust distributor is for offering the cylindrical shell that is uniformly distributed with aperture all around, and aperture communicates with exhaust outlet all around.
Described labyrinth seal assemblies has many groups, and every group of labyrinth seal assemblies is by labyrinth seal piece 11, and labyrinth seal pad 10 forms by said sequential combination with labyrinth expanding block 9 three parts.
Described high pressure Stainless Steel Shell is an open type, comprises cavity groove 8 and top friction top 3, and top friction top 3 is fixed and clamped through top cover hold-down bolt 5 with cavity groove 8, and 3 of cavity groove 8 tops and top friction tops are provided with resistant to elevated temperatures sealing strip 4.
Described cavity groove 8 cross sections are " recessed " font.
Embodiment 1:
The HTHP plasticizing apparatus selects for use 304 stainless steels to forge the high-pressure chamber blank, process chamber groove on planer, and the long 1500mm of cavity groove appearance and size, wide 120mm, high 100mm, inner chamber inside dimension 1500mm, wide 80mm, high 80mm joins and creeps into gas port and exhaust outlet; Processing top friction top, the long 1500mm of size, wide 120mm, thick 10mm joins brill M10 screwed hole with cavity groove sidewall, adds up to 30; One of processing sealing strip, the length and width size is consistent with the top friction top, thickness 2mm, material silicon rubber is joined the auger shell keyhole with the top friction top; Processing end gland, the wide 120mm of size, high by 80, thick 10mm joins with bottom surface, cavity groove end and sidewall and to bore 6 of M10 screwed holes, processing labyrinth seal piece several pieces, wide high size is consistent with inside cavity, thickness 3mm, hole in the centre, diameter 3mm, mirror finish; Processing labyrinth seal pad several pieces, appearance and size is consistent with the labyrinth seal piece, thickness 1mm, middle perforate, diameter 50mm, material silicon rubber; Processing labyrinth expanding block several pieces, appearance and size is consistent with the labyrinth seal piece, thickness 20mm, middle perforate, diameter 30mm; One of processing gas inlet uniform pressure distribution device, intracavity diameter 30mm, length 400mm is uniformly distributed with 100 of diameter 5mm apertures all around; Two in processing release exhaust distributor, intracavity diameter 30mm, length 100mm is uniformly distributed with 30 of diameter 5mm apertures all around; It is some to be equipped with M10 bolt and pad.
The assembly that processes is assembled according to accompanying drawing.The cleaning cavity, then in cavity in order with assembled such as admission pressure distributor, black boies, tighten all bolts, can accomplish processing and manufacturing of the present invention.Utilize this equipment to carry out applied voltage test, inside cavity can be stablized pressurize 0.6MPa.
Embodiment 2:
The HTHP plasticizing apparatus selects for use 316 stainless steels to forge the high-pressure chamber blank, process chamber groove on planer, and the long 3000mm of cavity groove appearance and size, wide 180mm, high 120mm, inner chamber inside dimension 3000mm, wide 120mm, high 90mm joins and creeps into gas port and exhaust outlet; Processing top friction top, the long 3000mm of size, wide 180mm, thick 15mm joins brill M16 screwed hole with cavity groove sidewall, adds up to 60; One of processing sealing strip, the length and width size is consistent with the top friction top, thickness 2mm, the material fluorubber is joined the auger shell keyhole with the top friction top; Processing end friction top, the wide 180mm of size, high by 120, thick 15mm joins 9 of brill M16 screwed holes with bottom surface, cavity end and sidewall; Processing labyrinth seal piece several pieces, wide high size is inner consistent with cavity, thickness 4mm, hole in the centre, diameter 6mm, mirror finish; Processing labyrinth seal pad several pieces, appearance and size is consistent with the labyrinth seal piece, thickness 2mm, middle perforate, diameter 60mm, material fluorubber; Processing labyrinth expanding block several pieces, appearance and size is consistent with the labyrinth seal piece, thickness 30mm, middle perforate, diameter 50mm; One of processing gas inlet uniform pressure distribution device, intracavity diameter 50mm, length 800mm is uniformly distributed with 100 of diameter 10mm apertures all around; Two in processing processing release exhaust distributor, intracavity diameter 50mm, length 120mm is uniformly distributed with 30 of diameter 10mm apertures all around; It is some to be equipped with M16 bolt and pad.
The assembly that processes is assembled according to accompanying drawing.The cleaning cavity, then in cavity in order with assembled such as admission pressure distributor, black boies, tighten all bolts, can accomplish processing and manufacturing of the present invention.Utilize this equipment to carry out applied voltage test, inside cavity can be stablized pressurize 0.6MPa.
Claims (7)
1. HTHP plasticizing apparatus; It is characterized in that; It comprises the high pressure Stainless Steel Shell, and high pressure Stainless Steel Shell inside surrounds a cavity, peripheral hardware end, termination, cavity two ends gland; Have air inlet on the high pressure Stainless Steel Shell of cavity mid portion bottom correspondence; Have exhaust outlet on the high pressure Stainless Steel Shell of cavity two end portions bottom correspondence, the interior mid portion of cavity is equipped with the admission pressure uniform device and communicates with air inlet, and the interior both ends of cavity are set up release exhaust distributor separately and communicated with exhaust outlet; Be provided with labyrinth seal assemblies between admission pressure uniform device and release exhaust distributor and between release exhaust distributor and end gland, labyrinth seal assemblies, gland center, end are provided with the wire hole.
2. HTHP plasticizing apparatus according to claim 1 is characterized in that, described admission pressure uniform device is for offering the cylindrical shell that is uniformly distributed with aperture all around, and aperture communicates with air inlet all around.
3. HTHP plasticizing apparatus according to claim 1 is characterized in that, described release exhaust distributor is for offering the cylindrical shell that is uniformly distributed with aperture all around, and aperture communicates with exhaust outlet all around.
4. HTHP plasticizing apparatus according to claim 1 is characterized in that, described labyrinth seal assemblies has many groups, and every group of labyrinth seal assemblies is by the labyrinth seal piece, and labyrinth seal pad and labyrinth expanding block three parts form by said sequential combination.
5. according to each described HTHP plasticizing apparatus of claim 1-4, it is characterized in that described high pressure Stainless Steel Shell is an open type, comprise cavity groove and top friction top, top friction top and cavity groove are fixed and clamped through the top cover hold-down bolt.
6. HTHP plasticizing apparatus according to claim 5 is characterized in that, is provided with resistant to elevated temperatures sealing strip between described cavity groove top and top friction top.
7. HTHP plasticizing apparatus according to claim 5 is characterized in that, described cavity groove cross section is " recessed " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110210816A CN102304775A (en) | 2011-07-26 | 2011-07-26 | High-temperature high-pressure plasticizing device |
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| CN201110210816A CN102304775A (en) | 2011-07-26 | 2011-07-26 | High-temperature high-pressure plasticizing device |
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| CN102304775A true CN102304775A (en) | 2012-01-04 |
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Citations (7)
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| US5287606A (en) * | 1992-03-10 | 1994-02-22 | Soft Blast, Inc. | Apparatus for treating traveling textile material in a pressurized fluid |
| US5931972A (en) * | 1994-05-24 | 1999-08-03 | University Of Manchester Institute Of Science And Technology | Processing textile structures |
| CN2576729Y (en) * | 2002-08-13 | 2003-10-01 | 中国科学院山西煤炭化学研究所 | Polyacrylonitrile fiber maturatd steam pressurizing traction apparatus |
| CN101235568A (en) * | 2007-01-31 | 2008-08-06 | 中国科学院化学研究所 | Polyacrylonitrile fiber steam drafting device and sealing method for the device |
| CN201495350U (en) * | 2009-08-17 | 2010-06-02 | 王新玉 | Steam plasticizing hot box used for a PAN carbon fiber precursor |
| CN102061531A (en) * | 2010-12-03 | 2011-05-18 | 西安航科等离子体科技有限公司 | Fiber pressure-retaining drawing device under pressurized steam |
| CN202247052U (en) * | 2011-07-26 | 2012-05-30 | 山东大学 | High-temperature and high-pressure plasticizing device |
-
2011
- 2011-07-26 CN CN201110210816A patent/CN102304775A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5287606A (en) * | 1992-03-10 | 1994-02-22 | Soft Blast, Inc. | Apparatus for treating traveling textile material in a pressurized fluid |
| US5931972A (en) * | 1994-05-24 | 1999-08-03 | University Of Manchester Institute Of Science And Technology | Processing textile structures |
| CN2576729Y (en) * | 2002-08-13 | 2003-10-01 | 中国科学院山西煤炭化学研究所 | Polyacrylonitrile fiber maturatd steam pressurizing traction apparatus |
| CN101235568A (en) * | 2007-01-31 | 2008-08-06 | 中国科学院化学研究所 | Polyacrylonitrile fiber steam drafting device and sealing method for the device |
| CN201495350U (en) * | 2009-08-17 | 2010-06-02 | 王新玉 | Steam plasticizing hot box used for a PAN carbon fiber precursor |
| CN102061531A (en) * | 2010-12-03 | 2011-05-18 | 西安航科等离子体科技有限公司 | Fiber pressure-retaining drawing device under pressurized steam |
| CN202247052U (en) * | 2011-07-26 | 2012-05-30 | 山东大学 | High-temperature and high-pressure plasticizing device |
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Application publication date: 20120104 |