CN106746748A - The ventilation unit of optical fiber curing stove - Google Patents

The ventilation unit of optical fiber curing stove Download PDF

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Publication number
CN106746748A
CN106746748A CN201611129913.9A CN201611129913A CN106746748A CN 106746748 A CN106746748 A CN 106746748A CN 201611129913 A CN201611129913 A CN 201611129913A CN 106746748 A CN106746748 A CN 106746748A
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CN
China
Prior art keywords
leaf dish
air inlet
spiral leaf
optical fiber
pumping
Prior art date
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Granted
Application number
CN201611129913.9A
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Chinese (zh)
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CN106746748B (en
Inventor
郑永宽
赵海林
施蒙华
袁积鸿
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Qinghai Zhongli Optical Fiber Technology Co Ltd
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Qinghai Zhongli Optical Fiber Technology Co Ltd
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Application filed by Qinghai Zhongli Optical Fiber Technology Co Ltd filed Critical Qinghai Zhongli Optical Fiber Technology Co Ltd
Priority to CN201611129913.9A priority Critical patent/CN106746748B/en
Publication of CN106746748A publication Critical patent/CN106746748A/en
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/12General methods of coating; Devices therefor
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/24Coatings containing organic materials
    • C03C25/26Macromolecular compounds or prepolymers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57Improving the yield, e-g- reduction of reject rates

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

A kind of ventilation unit of optical fiber curing stove, curing oven includes body of heater, and there is a combustion chamber in its center, and the top of combustion chamber is suitable for reading with the body of heater of body of heater to be communicated, bottom communicates with mouth under the body of heater of body of heater, and ventilation unit includes admission gear and extraction sector, feature:Admission gear includes airscoop shroud, air inlet spiral leaf dish and airscoop shroud lid, and airscoop shroud is fixed with the bottom of body of heater, and air inlet spiral leaf dish is located in airscoop shroud, and airscoop shroud lid is fixed with the bottom of airscoop shroud;Extraction sector includes draft hood, pumping spiral leaf dish and draft hood lid, and draft hood is fixed with the top of body of heater, and pumping spiral leaf dish is located in draft hood, and draft hood is covered to be fixed in the position of the top corresponding to pumping spiral leaf dish with draft hood.The shake of optical fiber will not be caused, it is to avoid the bonding agent solidification defect of coat and fibre loss;Ensure that ventilation is smooth;Ensure the stability of flow of inlet, outlet;Avoid gaseous mixture from being escaped to outside stove from body of heater, be conducive to saving nitrogen and compressed air and ensure solidification quality to coat.

Description

The ventilation unit of optical fiber curing stove
Technical field
The invention belongs to the technical field of auxiliary facilities of optical fiber production, and in particular to a kind of ventilation dress of optical fiber curing stove Put.
Background technology
As is known in the industry, optical fiber is by fibre core, covering and coating(I.e. coat, as follows)Composition, fibre core is usually pure two Silica glass mixes the silica glass of germanium, and covering is usually the silica glass of pure silicon dioxide glass or fluorine doped Glass, coating is to be in a liquid state under organic polymer, normal temperature.In drawing process, because the organic polymer that need to make to be in a liquid state switchs to Solid-state, thus need to be solidified by means of curing oven, form cured layer.
Protection optical fiber is used in order to improve the atmosphere in curing oven, is needed to stove during curing oven is to optical fiber curing Interior introducing rational proportion(Volume ratio)Nitrogen and compressed air, while the smog that need in the curing process produce coating and volatilization Point(Industry custom claims ash content)Curing oven is extracted out with negative-pressure ward direction, thus ventilation is configured on curing oven such as UV curing ovens Device, the ventilation unit includes admission gear and extraction sector, and admission gear is arranged on the bottom of curing oven(Descend mouth), pumping Mechanism is arranged on the top of curing oven(It is i.e. suitable for reading).The process to the aforementioned coatings solidification being coated in outside covering is in curing oven In, the mixed gas of nitrogen and compressed air are introduced in stove by the airscoop shroud of admission gear, while the draft hood of extraction sector Foregoing smog and volatile matter are extracted out outside stove.
The airscoop shroud of the structural system of the ventilation unit of the optical fiber curing stove in prior art introduces foregoing mixed gas Mode in stove shows as forming vertical relation with optical fiber, specifically, suitable for reading enter to curing oven of the optical fiber from curing oven Lower mouth is drawn, and mixed gas enter in stove from the sidewise hole of airscoop shroud, then because mixed gas and optical fiber form vertical relation And cause optical fiber to be shaken, and coat is produced defect and is made fibre-optical bending, cause the fibre loss of optical fiber.Again due to draft hood Internal structure be arrangement upper hole, thus be subject to block and be difficult to clean, trigger pumping not smooth, influence gas stream in the stove amount Turnover balance, thus cause into the mixed gas flow in stove be difficult to and stove in smog and volatile matter can not fully take out Come out of the stove outer, undermine optical fiber quality.
For above-mentioned prior art, the applicant has made lasting and beneficial exploration, forms finally and will be described below Technical scheme and tested in the case where secrecy provision is taken, as a result prove practicable.
The content of the invention
Task of the invention is to provide a kind of helping avoid into mixing that the nitrogen in stove and compressed air are mixed Close gas cause optical fiber shake and bending and using ensure to the solidification quality of coat and avoid fibre loss, be conducive to making into The residual soil of such as smog and waste gas etc that gas hood and draft hood are produced during being difficult to be cured is blocked and uses guarantor Barrier ventilation is smooth, be beneficial to ensure that the mixed gas flow of the nitrogen and compressed air being introduced in the curing process in stove is stable simultaneously And ensure to result from the ventilation unit that smog and volatile matter in stove fully extract the optical fiber curing stove outside stove out.
What task of the invention was performed by, a kind of ventilation unit of optical fiber curing stove, described curing oven includes Body of heater, the middle position of the body of heater is constituted a combustion chamber, and the top of the combustion chamber is suitable for reading with the body of heater of body of heater to be communicated, and under combustion chamber Portion communicates with mouth under the body of heater of body of heater, and described ventilation unit includes an admission gear and an extraction sector, and admission gear is right The position of mouth is fixed with the bottom of body of heater under body of heater described in Ying Yu, and extraction sector is corresponding to body of heater position suitable for reading and stove The top of body is fixed, and is characterised by that described admission gear includes airscoop shroud, air inlet spiral leaf dish and airscoop shroud lid, and airscoop shroud exists Position and the bottom of the body of heater corresponding to mouth under the body of heater are fixed, and air inlet spiral leaf dish is arranged in airscoop shroud, air inlet Cover lid is fixed with the bottom of airscoop shroud;Described extraction sector includes draft hood, pumping spiral leaf dish and draft hood lid, draft hood Fixed corresponding to body of heater position suitable for reading and the top of the body of heater, pumping spiral leaf dish is arranged in draft hood, is taken out Gas hood is covered to be fixed in the position of the top corresponding to pumping spiral leaf dish with draft hood.
In a specific embodiment of the invention, being constituted in the middle position on the top of the airscoop shroud has an air inlet Spiral leaf dish gas outlet mating holes, and the bottom of airscoop shroud constitutes and has an air inlet spiral leaf dish chamber, and in the left side of airscoop shroud With right side respectively with the one end for being connected to a mixed gas introducing pipe communicated with air inlet spiral leaf dish chamber, the mixed gas introduce pipe The other end is formed with a first interface and a second interface, and first interface is connected with compressed air supply source pipeline, and second connects Mouth is connected with nitrogen supply source pipeline, and the air inlet spiral leaf dish is arranged in air inlet spiral leaf dish chamber, in the air inlet helical-blade The top of disk and it is centrally located be formed with an air inlet spiral leaf dish gas outlet, the air inlet spiral leaf dish gas outlet probes into institute State in the mating holes of airscoop shroud spiral leaf dish gas outlet, being constituted in the middle position of the bottom of air inlet spiral leaf dish has an air inlet spiral Leaf dish supports spindle nose, and the space between each two adjacent air inlet flights of air inlet spiral leaf dish is configured to spiral inlet duct, should The helical duct intake mouthful of spiral inlet duct is communicated with described air inlet spiral leaf dish chamber, and the spiral of the spiral inlet duct enters Air flue gas outlet is communicated with described combustion chamber, and one from air inlet spiral shell is formed with the center of the short transverse of air inlet helicoidal leaf dish The top insertion of vane disk to bottom while the air inlet helical-blade coiled optical fiber through hole communicated with the combustion chamber, in the air inlet The middle position for covering lid offers an air inlet spiral leaf dish support shaft head bore, and described air inlet spiral leaf dish support shaft head enters with this Gas spiral leaf dish support shaft head bore is engaged, and the air inlet spiral leaf dish is supported on airscoop shroud and covers;Under the draft hood Portion is formed with a pumping cover chamber, on the draft hood bottom of chamber wall of the pumping cover chamber and centrally located offers a pumping spiral shell Vane disk air inlet mating holes, and sidepiece in draft hood matches somebody with somebody and be connected to one end of an exhaust tube, the other end of the exhaust tube with Air extractor is connected, and described pumping spiral leaf dish is arranged in pumping cover chamber, in the center on the top of the pumping spiral leaf dish Position is formed with a pumping helical-blade coiled optical fiber introducing port, the pumping helical-blade coiled optical fiber introducing port and the draft hood lid phase Coordinate, a pumping spiral leaf dish air inlet, the pumping spiral leaf dish are formed with the middle position of the bottom of pumping spiral leaf dish Air inlet is engaged and corresponding with the combustion chamber with the pumping spiral leaf dish air inlet mating holes, pumping spiral leaf dish Space between each two adjacent pumping flights is configured to spiral gas off-take, the spiral gas off-take air inlet of the spiral gas off-take Communicated with pumping spiral leaf dish air inlet, and the spiral gas off-take gas outlet of the spiral gas off-take communicates with the pumping cover chamber, It is described pumping spiral leaf dish center be formed with one from pumping spiral leaf dish top insertion to bottom while with it is described The pumping helical-blade coiled optical fiber through hole that combustion chamber is communicated, a pumping spiral leaf dish light is offered in the middle position of the draft hood lid Fine introducing port mating holes, described pumping helical-blade coiled optical fiber introducing port and the pumping helical-blade coiled optical fiber introducing port mating holes It is engaged.
In another specific embodiment of the invention, on the outer wall of the air inlet spiral leaf dish gas outlet and enclose Circumferencial direction around air inlet helical-blade disk gas outlet is formed with the limit convex on a surface for being raised in air inlet spiral leaf dish gas outlet Platform, the positive stop lug boss is contacted with the bottom of airscoop shroud spiral leaf dish gas outlet mating holes.
In another specific embodiment of the invention, set between the airscoop shroud lid and the bottom surface of the airscoop shroud It is equipped with airscoop shroud lid sealing ring.
In another specific embodiment of the invention, on the outer wall of described pumping helical-blade coiled optical fiber introducing port And it is formed with one around the circumferencial direction of pumping helical-blade coiled optical fiber introducing port and is raised in pumping helical-blade coiled optical fiber introducing port Surface restriction boss, a side contacts of the restriction boss with the draft hood lid under.
Also have a specific embodiment of the invention, the draft hood lid and the draft hood top surface it Between be provided with a draft hood sealing ring.
Of the invention more and in a specific embodiment, it is provided with side of the draft hood lid under Stopper seat alignment pin, and sealing mechanism under an optical fiber through hole is additionally provided with, sealing mechanism and lower stopper seat under the optical fiber through hole Alignment pin is engaged while corresponding with the air inlet helical-blade coiled optical fiber through hole;In the draft hood lid towards upper Side is provided with one block alignment pin and is additionally provided with sealing mechanism on an optical fiber through hole, on the optical fiber through hole sealing mechanism with Upper stopper seat alignment pin is engaged while corresponding with the pumping helical-blade coiled optical fiber through hole.
In an of the invention and then specific embodiment, on the optical fiber through hole structure of sealing mechanism be with it is described Sealing mechanism identical under optical fiber through hole, sealing mechanism includes bottom left stopper seat, bottom right stopper seat, bottom left gear under the optical fiber through hole Block, bottom right block and lower stopper seat latch hook, bottom left stopper seat are fitted to each other with bottom right stopper seat, and one end of bottom left stopper seat passes through Side of the bottom left stopper seat screw with the airscoop shroud lid under is connected, the middle part of bottom left stopper seat and towards bottom right block The side of seat constitutes the other end for having a bottom left block accommodating chamber, bottom left stopper seat and is configured to free end, and corresponding to institute The position composition for stating lower sealing block alignment pin has a bottom left stopper seat detent fit cavity, under one end of bottom right stopper seat passes through Side of the right stopper seat screw with the airscoop shroud lid under is connected, the middle part of bottom right stopper seat and corresponding under described The position of left block accommodating chamber is constituted a bottom right block accommodating chamber, the other end of bottom right stopper seat be configured to free end and There is a bottom right stopper seat detent fit cavity corresponding to the position composition of the bottom left stopper seat detent fit cavity, and A latch hook hanging scroll is fixed with the end face of the free end, bottom left block is arranged in the bottom left block accommodating chamber, bottom right gear Block is arranged in the bottom right block accommodating chamber, the freedom of one end hub setting of lower stopper seat latch hook in the bottom left stopper seat On the end face at end, and the other end is hung on the latch hook hanging scroll.
Of the invention and more and in a specific embodiment, described bottom left block accommodating chamber and bottom right block hold Receiving chamber is semicircle chamber, and the bottom left stopper seat detent fit cavity and bottom right stopper seat detent fit cavity are Semicircle chamber and with the lower stopper seat alignment pin phase obvolvent, the bottom left block and bottom right block face each other cooperation And the through hole for being formed is configured to optical fiber row and portals.
It is of the invention and and then a specific embodiment in, described bottom left block and bottom right block is with soft Pliable and elastic nonmetallic materials.
The technical scheme that the present invention is provided has technical effect that;Due to employing admission gear by airscoop shroud, air inlet The structure of spiral leaf dish and airscoop shroud lid composition, thus can make gaseous mixture that nitrogen mixes with compressed air spirally state under Fire door enters in body of heater, will not cause the shake of optical fiber, it is to avoid the bonding agent solidification defect of coat and fibre loss;Due to air exhauster Structure employs the structure being made up of draft hood, pumping spiral leaf dish and draft hood lid, and because admission gear employs air inlet spiral shell Vane disk, thus the dirt of such as smog, waste gas, the dirt produced during will not being cured etc blocks, and can ensure ventilation It is smooth;Because the pumping spiral leaf dish of extraction sector can fully be extracted the smog and volatile matter in body of heater out, thus can ensure into, The stability of flow of outlet;Due to being additionally arranged the upper and lower sealing mechanism of optical fiber through hole, thus can avoid gaseous mixture escaped from body of heater to Outside stove, be conducive to saving nitrogen and compressed air and ensure solidification quality to coat.
Brief description of the drawings
Fig. 1 is embodiments of the invention structure chart.
Fig. 2 is the dimensional decomposition structure figure of the admission gear shown in Fig. 1.
Fig. 3 is the dimensional decomposition structure figure of the extraction sector shown in Fig. 1.
Fig. 4 is the top view of the admission gear shown in Fig. 1 and Fig. 2.
Specific embodiment
In order to be more clearly understood from technical spirit of the invention and beneficial effect, applicant is below with embodiment Mode elaborate, but be not the limitation to the present invention program to the description of embodiment, it is any according to structure of the present invention Think done only formal rather than substantial equivalent transformation and be regarded as technical scheme category.
Every concept for being related to the directionality of up, down, left and right or directionality is both for just in the following description For with the location of scheming for being described state, thus the spy to the technical scheme for providing of the invention can not be understood as Do not limit.
Fig. 1 is referred to, body of heater 1 is shown, the middle position of the body of heater 1 is constituted a combustion chamber 11, the top of the combustion chamber 11 Suitable for reading with the body of heater of body of heater 1 12 communicate, and the bottom of combustion chamber 11 communicates with mouth 13 under the body of heater of body of heater 1, in the present embodiment Body of heater 1 is UV curing ovens.An admission gear 2 and an extraction sector 3 of the structural system of ventilation unit of the invention are shown, is entered The position of mouth 13 under corresponding to foregoing body of heater of mechanism of qi structure 2 is fixed with the bottom of body of heater 1, and extraction sector 3 is corresponding to foregoing stove The position of body suitable for reading 12 is fixed with the top of body of heater 1.Foregoing combustion chamber 11 is actually a transparent glass tube(Industry custom claims " UV central tubes ").
Refer to Fig. 2 to Fig. 4 and combine Fig. 1, the technical essential of the technical scheme provided as the present invention:Foregoing enters Mechanism of qi structure 2 includes airscoop shroud 21, air inlet spiral leaf dish 22 and airscoop shroud lid 23, the mouth 13 under corresponding to foregoing body of heater of airscoop shroud 21 Position by airscoop shroud fixing screws 215 the position corresponding to the airscoop shroud screw hole 216 being preset on airscoop shroud 21 with The bottom of foregoing body of heater 1 is fixed, and air inlet spiral leaf dish 22 is arranged in airscoop shroud 21, and airscoop shroud lid 23 passes through air inlet cover screw 234 fix with the bottom of airscoop shroud 21;Foregoing extraction sector 3 includes draft hood 31, pumping spiral leaf dish 32 and draft hood lid 33, draft hood 31 is in the position draft hood fixing screws 315 corresponding to foregoing body of heater suitable for reading 12 corresponding to being preset in pumping The position of the draft hood screw hole 316 on cover 31 is fixed with the top of foregoing body of heater 1, and pumping spiral leaf dish 32 is arranged on draft hood In 31, position pumping cover screw 334 and draft hood 31 of the draft hood lid 33 in the top corresponding to pumping spiral leaf dish 32 Top fix.
Please emphasis referring to Fig. 2 and still with Fig. 1, being constituted in the middle position on the top of foregoing airscoop shroud 21 has an air inlet Spiral leaf dish gas outlet mating holes 211, and the bottom of airscoop shroud 21 constitutes and has an air inlet spiral leaf dish chamber 212, and in air inlet The left side and right side of cover 21, should respectively with the one end for being connected to a mixed gas introducing pipe 213 communicated with air inlet spiral leaf dish chamber 212 The other end that mixed gas introduce pipe 213 is formed with a first interface 2131 and a second interface 2132, first interface 2131 with Such as air compressor pipeline connection of compressed air supply source, and second interface 2132 and nitrogen supply source such as nitrogen pot(Bottle)Pipeline Connection, foregoing air inlet spiral leaf dish 22 is arranged in air inlet spiral leaf dish chamber 212, on the top of the air inlet spiral leaf dish 212 simultaneously And it is centrally located be formed with an air inlet spiral leaf dish gas outlet 221, the air inlet spiral leaf dish gas outlet 221 probe into it is foregoing enter In gas hood spiral leaf dish gas outlet mating holes 211, being constituted in the middle position of the bottom of air inlet spiral leaf dish 22 has an air inlet spiral shell Vane disk supports spindle nose 225(Fig. 1 shows), the space structure between each two adjacent air inlet flights 222 of air inlet spiral leaf dish 22 As spiral inlet duct 223, helical duct intake mouthful 2231 and the foregoing air inlet spiral leaf dish chamber of the spiral inlet duct 223 212 communicate, and the spiral inlet duct gas outlet 2232 of the spiral inlet duct 223 communicates with foregoing combustion chamber 11, in air inlet spiral The center of the short transverse of spiral leaf dish 22 be formed with one from the top insertion of air inlet spiral leaf dish 22 to bottom while with The air inlet helical-blade coiled optical fiber through hole 224 that foregoing combustion chamber 11 is communicated, offers one and enters in the middle position of foregoing airscoop shroud lid 23 Gas spiral leaf dish support shaft head bore 231, foregoing air inlet spiral leaf dish support shaft first 225 and the air inlet spiral leaf dish support shaft head Hole 23 is engaged, and foregoing air inlet spiral leaf dish 22 is supported on airscoop shroud lid 23.
It is opened on airscoop shroud 21 and introduces two corresponding airscoop shroud air admission holes 217 of pipe 213 with mixed gas It is tangential admission hole(It can be seen that Fig. 4).
Please emphasis referring to Fig. 3 and still with Fig. 1, be formed with a pumping cover chamber 311 in the bottom of foregoing draft hood 31, On the draft hood bottom of chamber wall 312 of the pumping cover chamber 311 and the centrally located pumping spiral leaf dish air inlet that offers is matched somebody with somebody Close hole 313, and sidepiece in draft hood 31 is matched somebody with somebody and is connected to one end of an exhaust tube 314, the other end and the pumping of the exhaust tube 314 Device such as vacuum pumping pump, air exhauster connection, foregoing pumping spiral leaf dish 32 is arranged in pumping cover chamber 311, in the pumping spiral shell The middle position on the top of vane disk 32 is formed with a pumping helical-blade coiled optical fiber introducing port 321, the pumping helical-blade coiled optical fiber Introducing port 321 is engaged with foregoing draft hood lid 33, and a pumping is formed with the middle position of the bottom of pumping spiral leaf dish 32 Spiral leaf dish air inlet 322, the pumping spiral leaf dish air inlet 322 and the foregoing phase of pumping spiral leaf dish air inlet mating holes 313 Coordinate and corresponding with foregoing combustion chamber 11, the space between each two adjacent pumping flights 323 of pumping spiral leaf dish 32 It is configured to spiral gas off-take 324, spiral gas off-take air inlet 3241 and the pumping spiral leaf dish air inlet of the spiral gas off-take 324 322 communicate, and the spiral gas off-take gas outlet 3242 of the spiral gas off-take 324 communicates with foregoing pumping cover chamber 311, is taken out foregoing The center of gas spiral leaf dish 32 be formed with one from the top insertion of pumping spiral leaf dish 32 to bottom while with foregoing combustion chamber The 11 pumping helical-blade coiled optical fiber through holes 325 for communicating, a pumping helical-blade is offered in the middle position of foregoing draft hood lid 33 Coiled optical fiber introducing port mating holes 331, foregoing pumping helical-blade coiled optical fiber introducing port 321 is led with the pumping helical-blade coiled optical fiber Entrance mating holes 331 is engaged.
As shown in Figure 2, on the outer wall of foregoing air inlet spiral leaf dish gas outlet 221 and around air inlet spiral leaf dish outlet The circumferencial direction of mouth 221 is formed with the positive stop lug boss 2211 on a surface for being raised in air inlet spiral leaf dish gas outlet 221, and this is spacing Boss 2211 is contacted with the bottom of foregoing airscoop shroud spiral leaf dish gas outlet mating holes 211.
As shown in Figure 1, it is provided with air inlet bonnet seal between foregoing airscoop shroud lid 23 and the bottom surface of foregoing airscoop shroud 21 Circle 232, is provided with a draft hood sealing ring 332 between foregoing draft hood lid 33 and the top surface of foregoing draft hood 31.
As shown in Figure 3, on the outer wall of foregoing pumping helical-blade coiled optical fiber introducing port 321 and around pumping helical-blade The circumferencial direction of coiled optical fiber introducing port 321 is formed with the restriction on a surface for being raised in pumping helical-blade coiled optical fiber introducing port 321 Boss 3211, a side contacts of the restriction boss 3211 with foregoing draft hood lid 33 under.
As shown in Fig. 2 and Fig. 3, side of the foregoing draft hood lid 23 under is provided with stopper seat alignment pin 233, And sealing mechanism 4 under an optical fiber through hole is additionally provided with, sealing mechanism 4 and the lower phase of stopper seat alignment pin 233 under the optical fiber through hole Coordinate while corresponding with foregoing air inlet helical-blade coiled optical fiber through hole 224;In foregoing draft hood lid 33 towards upper side It is provided with one block alignment pin 333 and is additionally provided with sealing mechanism 5 on an optical fiber through hole, sealing mechanism on the optical fiber through hole 5 are engaged while corresponding with foregoing pumping helical-blade coiled optical fiber through hole 325 with upper stopper seat alignment pin 333.
Continue to see Fig. 2, the structure of sealing mechanism 5 is and the phase of sealing mechanism 4 under foregoing optical fiber through hole on foregoing optical fiber through hole With, sealing mechanism 4 includes bottom left stopper seat 41, bottom right stopper seat 42, bottom left block 43, bottom right block 44 under the optical fiber through hole With lower stopper seat latch hook 45, bottom left stopper seat 41 is fitted to each other with bottom right stopper seat 42, under one end of bottom left stopper seat 41 passes through Left stopper seat screw 411 is in the position corresponding to the first screw hole 235 being preset on airscoop shroud lid 23 and foregoing airscoop shroud lid 23 under side connection, the middle part of bottom left stopper seat 41 and towards bottom right stopper seat 42 side constitute have a bottom left keep off Block accommodating chamber 412, the other end of bottom left stopper seat 41 is configured to free end, and corresponding to foregoing lower sealing block alignment pin 233 position is constituted a bottom left stopper seat detent fit cavity 413, and one end of bottom right stopper seat 42 passes through bottom right stopper seat Screw 421 the position corresponding to the second screw hole 236 being preset on airscoop shroud lid 23 with foregoing airscoop shroud lid 23 under Side connection, the middle part of bottom right stopper seat 42 and corresponding to foregoing bottom left block accommodating chamber 412 position constitute have one Bottom right block accommodating chamber 422, the other end of bottom right stopper seat 42 is configured to free end and corresponding to foregoing bottom left stopper seat The position of detent fit cavity 413 is constituted a bottom right stopper seat detent fit cavity 423, and at the end of the free end A latch hook hanging scroll 414 is fixed with face, bottom left block 43 is arranged in foregoing bottom left block accommodating chamber 412, and bottom right block 44 sets Put in foregoing bottom right block accommodating chamber 422, one end of lower stopper seat latch hook 45 passes through the hub setting of bearing pin 451 in foregoing bottom left block On the end face of the foregoing free end of seat 41, and the other end is hung on foregoing latch hook hanging scroll 414.
Foregoing bottom left block accommodating chamber 412 and bottom right block accommodating chamber 422 is semicircle chamber, foregoing bottom left block Seat detent fit cavity 413 and bottom right stopper seat detent fit cavity 423 be semicircle chamber and with foregoing lower block The phase obvolvent of block alignment pin 233, foregoing bottom left block 43 and bottom right block 44 face each other and coordinate and the through hole structure of formation Portal 46 as optical fiber row.
Foregoing bottom left block 43 and bottom right block 44 is the nonmetallic materials with compliance and elasticity, such as rubber Glue.
When bottom left block 43 to be changed and/or bottom right block 44, as long as lower stopper seat latch hook 45 is peeled off being hung in latch hook Axle 414, the foregoing free end phase mutual exclusion of left and right stopper seat 41,42 is opened under making, and is closed up each other again after the completion of replacing and by under Stopper seat latch hook 45 is hung on latch hook hanging scroll 414.
Fig. 1 illustrate optical fiber 6 from optical fiber through hole sealing mechanism 5 be equivalent to foregoing optical fiber row portal 46 optical fiber introduce Hole introduces, successively through being evacuated helical-blade coiled optical fiber through hole 325, combustion chamber 11 and air inlet spiral leaf dish through hole 224, until from optical fiber row 46 rows that portal go out.In this process, body of heater 1 is in running order, meanwhile, introducing pipe 213 by mixed gas will be by compressed air Air inlet helical-blade disk chamber 212 is introduced with the mixed gas that nitrogen is mixed, is passed through by the spiral inlet duct 223 of air inlet spiral leaf dish 22 Lower fire door 13 enters in body of heater 1.At the same time, the useless cigarette for being produced in the coat solidification process outside to optical fiber 6 in body of heater 1 Gas is foregoing smog, volatilizees and grade from upper fire door 12 successively through the spiral gas off-take 324 and draft hood of pumping spiral leaf dish 32 Chamber 311, until being extracted out by the exhaust tube 314 being connected with air extractor.
To sum up foregoing, the technical scheme that the present invention is provided compensate for the shortcoming in prior art, favorably accomplish invention Task, has faithfully cashed the technique effect referred in the superincumbent technique effect column of applicant.

Claims (10)

1. a kind of ventilation unit of optical fiber curing stove, described curing oven includes body of heater (1), the middle position structure of the body of heater (1) Cheng Youyi combustion chambers (11), the top of the combustion chamber (11) communicates with the body of heater of body of heater (1) (12) suitable for reading, and the bottom of combustion chamber (11) with Mouth (13) is communicated under the body of heater of body of heater (1), and described ventilation unit includes an admission gear (2) and an extraction sector (3), air inlet Mechanism (2) is fixed the position of mouth (13) under corresponding to the body of heater with the bottom of body of heater (1), and extraction sector (3) is corresponding to The position of the body of heater (12) suitable for reading is fixed with the top of body of heater (1), it is characterised in that described admission gear (2) is including air inlet Cover (21), air inlet spiral leaf dish (22) and airscoop shroud lid (23), the position of airscoop shroud (21) mouth (13) under corresponding to the body of heater Put and fixed with the bottom of the body of heater (1), air inlet spiral leaf dish (22) is arranged in airscoop shroud (21), airscoop shroud lid (23) with enter The bottom of gas hood (21) is fixed;Described extraction sector (3) includes draft hood (31), pumping spiral leaf dish (32) and draft hood lid (33), draft hood (31) is fixed at the position corresponding to the body of heater (12) suitable for reading and the top of the body of heater (1), is evacuated spiral Leaf dish (32) is arranged in draft hood (31), draft hood lid (33) the top corresponding to pumping spiral leaf dish (32) position with Draft hood (31) is fixed.
2. the ventilation unit of optical fiber curing stove according to claim 1, it is characterised in that in the upper of the airscoop shroud (21) The middle position in portion is constituted air inlet spiral leaf dish gas outlet mating holes (211), and the bottom of airscoop shroud (21) constitutes and has one Air inlet spiral leaf dish chamber (212), and the left side and right side of airscoop shroud (21) respectively be connected to one with air inlet spiral leaf dish chamber (212) mixed gas that communicate introduce one end of pipe (213), and the other end that the mixed gas introduce pipe (213) is formed with one the One interface (2131) and a second interface (2132), first interface (2131) are connected with compressed air supply source pipeline, and second Interface (2132) is connected with nitrogen supply source pipeline, matches somebody with somebody on the right side of airscoop shroud (21) and is connected to together sample and spiral leaf dish chamber (212) one end for the nitrogen introducing tube (214) for communicating, and the other end of the nitrogen introducing tube (214) connects with nitrogen supply source Connect, the air inlet spiral leaf dish (22) is arranged in air inlet spiral leaf dish chamber (212), in the upper of air inlet spiral leaf dish (212) Portion and it is centrally located be formed with air inlet spiral leaf dish gas outlet (221), air inlet spiral leaf dish gas outlet (221) visit Enter in airscoop shroud spiral leaf dish gas outlet mating holes (211), in the middle position structure of the bottom of air inlet spiral leaf dish (22) Cheng Youyi air inlet spiral leaf dishes support shaft head (225), each two adjacent air inlet flights (222) of air inlet spiral leaf dish (22) it Between space be configured to spiral inlet duct (223), the helical duct intake of the spiral inlet duct (223) mouthful (2231) with it is described Air inlet spiral leaf dish chamber (212) communicate, and the spiral inlet duct gas outlet (2232) of the spiral inlet duct (223) with it is described Combustion chamber (11) is communicated, and one from air inlet spiral leaf dish (22) is formed with the center of the short transverse of air inlet helicoidal leaf dish (22) Top insertion to bottom while air inlet helical-blade coiled optical fiber through hole (224) communicated with the combustion chamber (11), described The middle position of airscoop shroud lid (23) offers air inlet spiral leaf dish support shaft head bore (231), described air inlet spiral leaf dish Supporting spindle nose (225) is engaged with air inlet spiral leaf dish support shaft head bore (23), and the air inlet spiral leaf dish (22) is supported on On airscoop shroud lid (23);A pumping cover chamber (311) is formed with the bottom of the draft hood (31), in the pumping cover chamber (311) Draft hood bottom of chamber wall (312) on and it is centrally located offer pumping spiral leaf dish air inlet mating holes (313), and And the sidepiece in draft hood (31) is matched somebody with somebody and is connected to one end of an exhaust tube (314), the other end and air extractor of the exhaust tube (314) Connection, described pumping spiral leaf dish (32) is arranged in pumping cover chamber (311), on the top of pumping spiral leaf dish (32) Middle position is formed with pumping helical-blade coiled optical fiber introducing port (321), pumping helical-blade coiled optical fiber introducing port (321) with The draft hood lid (33) is engaged, and a pumping spiral leaf dish is formed with the middle position of the bottom of pumping spiral leaf dish (32) Air inlet (322), pumping spiral leaf dish air inlet (322) matches with pumping spiral leaf dish air inlet mating holes (313) Merge and corresponding with the combustion chamber (11), between each two adjacent pumping flights (323) of pumping spiral leaf dish (32) Space is configured to spiral gas off-take (324), spiral gas off-take air inlet (3241) and the pumping spiral of the spiral gas off-take (324) Leaf dish air inlet (322) is communicated, and the spiral gas off-take gas outlet (3242) of the spiral gas off-take (324) and the pumping cover chamber (311) communicate, a top insertion for being evacuated spiral leaf dish (32) certainly is formed with extremely in the center of pumping spiral leaf dish (32) Bottom while pumping helical-blade coiled optical fiber through hole (325) communicated with the combustion chamber (11), in the draft hood lid (33) Middle position offer pumping helical-blade coiled optical fiber introducing port mating holes (331), described pumping helical-blade coiled optical fiber is led Entrance (321) is engaged with pumping helical-blade coiled optical fiber introducing port mating holes (331).
3. the ventilation unit of optical fiber curing stove according to claim 2, it is characterised in that go out in the air inlet spiral leaf dish Circumferencial direction on the outer wall of gas port (221) and around air inlet spiral leaf dish gas outlet (221) is formed with one and is raised in air inlet The positive stop lug boss (2211) on the surface of spiral leaf dish gas outlet (221), the positive stop lug boss (2211) and the airscoop shroud helical-blade The bottom contact of disk gas outlet mating holes (211).
4. the ventilation unit of optical fiber curing stove according to claim 2, it is characterised in that the airscoop shroud lid (23) with Airscoop shroud lid sealing ring (232) is provided between the bottom surface of the airscoop shroud (21).
5. the ventilation unit of optical fiber curing stove according to claim 2, it is characterised in that in described pumping spiral leaf dish Circumferencial direction on the outer wall of optical fiber introducing port (321) and around pumping helical-blade coiled optical fiber introducing port (321) is formed with one It is raised in the restriction boss (3211) on the surface of pumping helical-blade coiled optical fiber introducing port (321), the restriction boss (3211) and institute State a side contacts of the draft hood lid (33) under.
6. the ventilation unit of optical fiber curing stove according to claim 2, it is characterised in that the draft hood lid (33) with A draft hood sealing ring (332) is provided between the top surface of the draft hood (31).
7. the ventilation unit of optical fiber curing stove according to claim 2, it is characterised in that in draft hood lid (23) court Downward side is provided with stopper seat alignment pin (233), and is additionally provided with sealing mechanism (4) under an optical fiber through hole, should Under optical fiber through hole sealing mechanism (4) be engaged with lower stopper seat alignment pin (233) while with the air inlet spiral leaf dish light Fine through hole (224) is corresponding;The draft hood lid (33) towards upper side be provided with one block alignment pin (333) and Sealing mechanism (5) on an optical fiber through hole is additionally provided with, sealing mechanism (5) and upper stopper seat alignment pin (333) on the optical fiber through hole It is engaged while corresponding with pumping helical-blade coiled optical fiber through hole (325).
8. the ventilation unit of optical fiber curing stove according to claim 7, it is characterised in that sealer on the optical fiber through hole The structure of structure (5) be with sealing mechanism (4) identical under the optical fiber through hole, under sealing mechanism (4) includes under the optical fiber through hole Left stopper seat (41), bottom right stopper seat (42), bottom left block (43), bottom right block (44) and lower stopper seat latch hook (45), bottom left Stopper seat (41) is fitted to each other with bottom right stopper seat (42), and one end of bottom left stopper seat (41) passes through bottom left stopper seat screw (411) side with the airscoop shroud lid (23) under is connected, the middle part of bottom left stopper seat (41) and towards bottom right block The side of seat (42) is constituted bottom left block accommodating chamber (412), and the other end of bottom left stopper seat (41) is configured to free end, and And have bottom left stopper seat detent fit cavity (413) in the position composition corresponding to the lower sealing block alignment pin (233), Side of the one end of bottom right stopper seat (42) by bottom right stopper seat screw (421) with the airscoop shroud lid (23) under connects Connect, the middle part of bottom right stopper seat (42) and corresponding to the bottom left block accommodating chamber (412) position constitute have a bottom right Block accommodating chamber (422), the other end of bottom right stopper seat (42) is configured to free end and corresponding to the bottom left stopper seat The position of detent fit cavity (413) is constituted bottom right stopper seat detent fit cavity (423), and in the free end End face on be fixed with a latch hook hanging scroll (414), bottom left block (43) is arranged in the bottom left block accommodating chamber (412), under Right block (44) is arranged in the bottom right block accommodating chamber (422), and one end hub setting of lower stopper seat latch hook (45) is under described On the end face of the free end of left stopper seat (41), and the other end is hung on the latch hook hanging scroll (414).
9. the ventilation unit of optical fiber curing stove according to claim 8, it is characterised in that described bottom left block accommodating chamber (412) and bottom right block accommodating chamber (422) is semicircle chamber, the bottom left stopper seat detent fit cavity (413) with And bottom right stopper seat detent fit cavity (423) is semicircle chamber and is embraced with the lower stopper seat alignment pin (233) Close, the bottom left block (43) and bottom right block (44) face each other and coordinate and the through hole that is formed is configured to optical fiber row and portals (46)。
10. the ventilation unit of optical fiber curing stove according to claim 8 or claim 9, it is characterised in that described bottom left block (43) and bottom right block (44) be with compliance and elasticity nonmetallic materials.
CN201611129913.9A 2016-12-09 2016-12-09 Ventilation device of optical fiber curing oven Active CN106746748B (en)

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