CN102173603B - Full-automatic high-speed wire drawing curing system - Google Patents
Full-automatic high-speed wire drawing curing system Download PDFInfo
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- CN102173603B CN102173603B CN 201010583763 CN201010583763A CN102173603B CN 102173603 B CN102173603 B CN 102173603B CN 201010583763 CN201010583763 CN 201010583763 CN 201010583763 A CN201010583763 A CN 201010583763A CN 102173603 B CN102173603 B CN 102173603B
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Abstract
The invention relates to a full-automatic high-speed wire drawing curing system. The system comprises a curing oven, and a proportion integration differentiation (PID) controller of the curing oven; the PID controller of the curing oven is connected with a central controller of a wire drawing tower; and the central controller of the wire drawing tower is provided with a recorder which is used for displaying the current warning and running conditions; and an optical coating surface dust monitoring device, a curing oven internal ultraviolet light power monitor, a curing oven internal ultraviolet light power regulator, a curing oven oxygen content monitor, a curing oven internal protection air flow regulator, a curing oven internal fume extraction pressure monitor, a curing oven internal fume extraction pump, and a curing oven internal particle number monitor are directly connected with the PID controller of the curing oven respectively. The system monitors the state of an ultraviolet light curing oven and the state of the optical fiber every time when the ultraviolet light curing oven rotates, and performs real-time adjustment according to the monitoring data, so that the curing quality of the coating is guaranteed in the wire drawing process of the optical fiber, and the post-screening step is saved.
Description
Technical field
The present invention relates to coating and the curing technology field of optical fiber in the fiber draw process, is a kind of full-automatic high-speed wire drawing curing system specifically.
Background technology
Along with the fibre-optical drawing technology at a high speed, the extra long distance future development, how can be to carrying out high-quality, long, stable effectively curing after the coating of optical fiber process, become restricting the key issue that people ensure optical fiber quality, raising fibre-optical drawing yield rate, reduce the optical fiber cost.
In fiber draw process, the coating of optical fiber and curing technology are very crucial links.Because bare fibre is when directly being exposed to the external world, a little less than being highly brittle, therefore in the preparation process of optical fiber, must coats protective coating and coating is solidified bare fibre.Simultaneously, by applying and curing process, can optimize greatly the mechanical property of optical fiber, strengthen the transverse property of optical fiber, thus the overall performance of General Promotion optical fiber.
The curing process of optical fiber adopts the UV-curing metallization processes usually, utilizes UV curing oven that the protective coating of optical fiber outside surface is cured and makes it form fibre coating.If fibre coating solidifies bad, then will cause optical fiber surface smooth finish relatively poor, optical fiber glues hand, and the optical fiber curing degree is inadequate, and lateral pressure resistant power is not strong, has a strong impact on thereby subsequent handling caused.For example, cause the optical fiber after-combustion bad, affect optical fiber coloring, serious even may cause the optical fiber residual mechanical stress excessive, affect the transmission performance of optical fiber; What is more, and fibre coating solidifies bad meeting and causes the mechanical fiber optic degradation, and it then is not fracture that optical fiber was laid to behind the optical cable in the life-span, causes the interruption of communication.
Therefore, various countries' fiber manufacturers ring of all the curing quality of fibre coating being considered as controlling.Fiber manufacturers is maintained strict control over outside the gate of the quality monitoring except when selecting coating, also continually develops the fibre coating curing technology.For example increase the quantity of UV curing oven, strengthen the curing power of UV curing oven, increase the curing oven shielding gas flow, reduce the oxygen level in the curing oven, increase the curing oven cooling wind pressure, stable curing furnace control system etc.
In this respect, there is relevant patented technology in a lot of large manufacturers.But these technology all can get into trouble in actual applications, because the use state of UV curing oven is to change along with the passing of duration of service is continuous.In the UV curing oven operation process,, gas leakage dirty such as dirty, the quartzy pipe core of reflector, smoking pressure change etc. many uncontrollable factors can occur.These factors will affect fibre coating and solidify quality as long as any one occurs, and cause the coating curing degree bad.Therefore, a lot of producers also adopt the afterwards mode of screening on the basis of these patented technologies, defective products is rejected.Because generally more than the 100km rank, this afterwards mode of screening has omission to drawing optical fibers length unavoidably.
Summary of the invention
For the defective that exists in the prior art, the object of the present invention is to provide a kind of full-automatic high-speed wire drawing curing system, UV curing oven running all the time all to its state, to the monitoring state of optical fiber, and according to the monitoring data regulate in real time, thereby make optical fiber in the process of wire drawing, just ensure the coating curing quality, need not to screen afterwards.
For reaching above purpose, the technical scheme that the present invention takes is:
A kind of full-automatic high-speed wire drawing curing system is characterized in that, comprising:
The digital treating meter 25 that is built-in with the analysis conclusion of great number tested data obtains pressure sensitive data and fine resolution data from the guide wheel of fibre coating dust inductor block 26,
Obtain the dust condition judged result after 25 pairs of data analyses of digital treating meter, and the dust condition judged result sent into fibre coating surface dust monitor 11,
Whether fibre coating surface dust monitor 11 analyzes dust exceeding according to the dust condition judged result, and the dust exceeding warning signal is sent into curing oven PID controller 3,
Whether curing oven PID controller 3 is connected with wire-drawer-tower central controller 2, and eliminate according to dust exceeding warning and to send alarm to wire-drawer-tower central controller 2 and remove instruction or shut down maintenance instruction,
Wire-drawer-tower central controller 2 is provided with for the registering instrument 1 that shows current alarm and running condition,
On the basis of technique scheme, in the described curing oven 18, a built-in uv power monitoring device 14,
The inner end of described uv power monitoring device 14 divides former and later two faces to be placed with front power inductor 12 and rear power inductor 13,
The uv power that front power inductor 12 monitoring ultraviolet tubes 28 reflect through front-reflection cover 29,
After the luminous power that rear power inductor 13 monitoring ultraviolet tubes 28 send is passed the quartzy pipe core 27 of protection optical fiber 37, the uv power that reflects through back reflection cover 30 again;
The uv power that front power inductor 12 and rear power inductor 13 are measured is sent to uv power monitor 4 in the curing oven through uv power monitoring device 14,
Uv power setter 5 is used for steering order is transferred to curing oven control power supply 17 in the curing oven,
Curing oven control power supply 17 provides electric power for the ultraviolet tube 28 in the curing oven 18.
On the basis of technique scheme, described curing oven 18 is supporting the protection of curing gas supplementary unit, and described curing protection gas supplementary unit is located at quartzy pipe core 27 two ends, comprises supplementary unit housing 32,
Be provided with embedded guide 33 in the supplementary unit housing 32,
Protection gas ingress pipe 31 is communicated with embedded guide 33, and embedded guide 33 lower ends are communicated with quartzy pipe core 27,
Also be provided with an atmosphere delivery line 15 on the supplementary unit housing 32, atmosphere delivery line 15 1 ends are communicated with quartzy pipe core 27, and the other end is communicated with oxygen conten analyser 16,
Oxygen conten analyser 16 sends the oxygen level data to curing oven oxygen level monitor 9,
Be located at the curing of quartzy pipe core 27 upper ends and protect on the protection gas ingress pipe 31 of gas supplementary unit, be provided with the first mass flow controller 20;
Be located at the curing of quartzy pipe core 27 lower ends and protect on the protection gas ingress pipe 31 of gas supplementary unit, be provided with the second mass flow controller 22;
The control that first, second mass flow controller 20 and 22 is accepted shielding gas flow amount setter 10 in the curing oven realizes the adjusting of shielding gas flow amount.
On the basis of technique scheme, described curing oven 18 is supporting the curing oven supplementary unit, and described curing oven supplementary unit is provided with granule number monitoring delivery line 34, smoke exhaust pipe 21,
Be provided with curing oven smoking pressure survey export mouth 36 at smoke exhaust pipe 21,
Granule number monitoring delivery line 34 1 ends are communicated with quartzy pipe core 27, and the other end is communicated with gas particles analyser 19,
Gas particles analyser 19 is counted monitor 6 to the curing oven endoparticle and is sent the amounts of particles data,
Pressure monitor table 23 sends to smoking pressure monitor device 8 in the curing oven through air-pressure electric-control transfer equipment 24 with pressure data.
Full-automatic high-speed wire drawing curing system of the present invention, UV curing oven running all the time all to its state, to the monitoring state of optical fiber, and according to the monitoring data regulate in real time, thereby make optical fiber in the process of wire drawing, just ensure the coating curing quality, need not to screen afterwards.
The present invention has realized high-speed wire-drawing system fibre coating is solidified the omnidistance real-time automatic tracking of quality; regulate control by the intelligence to uv power (curing power), oxygen level, shielding gas flow amount, curing oven smoking pressure, curing oven endoparticle quantity, optical fiber external coating (EC) (coatingsurface) dust condition; in the high-speed wire-drawing operation process; the fibre coating degree of cure that effective guarantee is produced and curing quality, the non-defective unit curing optical fiber with 100% flows into next process.
The present invention has following beneficial effect:
(1) the invention solves in the drawing optical fibers process a difficult problem to optical fiber curing degree and the on-line monitoring of fibre coating quality;
(2) the present invention can improve the optical fiber curing degree by the online uv power of adjusting in real time in the drawing optical fibers process;
(3) the present invention can the online shielding gas flow amount of adjusting in real time improve curing oven oxygen level state in the drawing optical fibers process, improves fibre coating surface cure quality;
(4) can be in the drawing optical fibers process online smoking pressure of adjusting in real time of the present invention improves the curing oven endoparticle and counts content, and firm fibre coating solidifies quality;
(5) the present invention can be in the drawing optical fibers process on-line monitoring UV curing oven behaviour in service; for reflector; the center silica tube; the curing oven oxygen level; curing oven protection gaseity; the curing oven air-tight state; the different links such as curing oven smoking state are sent corresponding alarm message; thereby in time send the early warning notice that is accurate to a little; tell which concrete link generation problem technologist's UV curing oven is; thereby accelerate system maintenance speed; improve the system maintenance quality; further the lifting system use properties is fully created favorable factor and is drawn high-quality optical fiber.
Description of drawings
The present invention has following accompanying drawing:
The structural representation of Fig. 1 full-automatic high-speed wire drawing curing system,
Fig. 2 curing oven front elevational schematic,
The structural representation of Fig. 3 curing oven uv power monitoring device,
Fig. 4 solidifies the structural representation of protection gas supplementary unit,
The structural representation of Fig. 5 curing oven endoparticle quantity monitoring device.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Inventive point of the present invention is at the wire drawing curing process, and the details of relevant coating does not belong to content of the present invention.Alleged curing oven all refers to UV curing oven if no special instructions herein.
In the pulling process of optical fiber, the degree of cure of fibre coating is subject to the impact of many factors, and it is interrelated that these factors have, somely independently work, concrete influence factor have following some:
(1) impact of ultraviolet light polymerization power of lamp tube
The UV-light that the ultraviolet light polymerization fluorescent tube radiates participates in solidifying.If uv power (curing power) is inadequate, will cause UV-light not penetrate whole coating namely digested, cause part depths coating not to be cured, quality is solidified in impact.If uv power (curing power) is too high, can cause that all polymkeric substance all are initiated curing in the coating, cause the fibre coating overcuring, quality is solidified in same impact.
(2) impact of reflector
Ultraviolet light polymerization fluorescent tube and optical fiber lay respectively on two focuses of oval reflector, and both are parallel to each other.Reflector so that the UV-light of irradiation optical fiber focus on and be reflected on the optical fiber, thereby improve usefulness, accelerate to solidify.In actual production, dirty because reflector is subject to extraneous pollution on the one hand, cause catoptrical strength reduction, reduced solidification effect, therefore to keep the cleaning of reflector internal surface to guarantee the stability of UV (UV-light) curing process; On the other hand, because reflector distortion or working accuracy are inadequate, cause the focusing power of reflector to weaken, thereby the optical fiber curing rate is reduced.
(3) impact of pipe core
When optical fiber passes UV curing oven, for preventing polluted by furnace air and vibration, often it is passed a pipe core, described pipe core is the quartz glass tube of certain diameter.Therefore the transmittance of pipe core, clean level are to the curing outbalance of optical fiber.
(4) impact of air-flow
In the pipe core of UV curing oven, often use rare gas element (such as nitrogen) to keep away oxygen to accelerate curing.The UV curing oven of different structure send the mode of rare gas element different.
Take nitrogen as example, in general, the clean nitrogen of certain purity flows into from the pipe core bottom, upper fire door is often installed extractor fan, make the nitrogen that enters pipe core arrive upper fire door with layer flow mode, thereby get rid of the oxygen of being brought into by optical fiber, and take the volatile matter in the coating out of, keep the cleanliness factor of pipe core and optical fiber.For guaranteeing the curing of optical fiber under the friction-motion speed, the flow of nitrogen and purity should be controlled within the specific limits.Too low such as flow or purity, then make the oxygen level in the interior nitrogen of pipe core too high, cause solidifying bad; Too high such as flow, then make optical fiber shake in the production process, cause fiber strength to reduce.In addition, have such as pipe core and to break or seal badly, all can cause in the nitrogen oxygen level too high, cause solidifying bad.
When drawing speed when 1000m/min is following, the curing of fibre coating has higher degree of containing to the impact of above-mentioned factor; When drawing speed up promotes, when reaching 1500～2000m/min, if above-mentioned factor is untreated, the fibre coating quality will be therefore deteriorated rapidly.
For above-mentioned influence factor, the present invention monitors the uv power in the curing oven, oxygen level, shielding gas flow amount, curing oven smoking pressure, curing oven endoparticle quantity and optical fiber external coating (EC) (coatingsurface) dust condition; And monitor data fed back to central PID (Proportion Integration Differentiation Control, proportion integration differentiation control) Controlling System.The PID Controlling System is according to the rule of thumb data of the lot of experiments accumulation data analysis to these collections, and makes corresponding adjustment, thereby effectively solves the unexpected situation in the drawing process, and the effective guarantee fibre coating solidifies quality.
The present invention's each monitoring units such as uv power, oxygen level, shielding gas flow amount, curing oven smoking pressure, curing oven endoparticle quantity and optical fiber external coating (EC) (coatingsurface) dust condition that the optical fiber curing process is related combine; make fibre-optical drawing speed reach 1000m/min when above; can guarantee effectively that still fibre coating solidifies quality, ensure that the coating quality good article rate reached more than 99% when optical fiber dispatched from the factory.
Full-automatic high-speed wire drawing curing system of the present invention; comprise: curing oven and curing oven PID controller; curing oven PID controller is connected with the wire-drawer-tower central controller; the wire-drawer-tower central controller is provided with for the registering instrument that shows current alarm and running condition, fibre coating surface dust monitor; uv power monitor in the curing oven; uv power setter in the curing oven; curing oven oxygen level monitor; shielding gas flow amount setter in the curing oven; smoking pressure monitor device in the curing oven; smoking pump in the curing oven; the curing oven endoparticle is counted monitor and directly is connected with curing oven PID controller respectively.Specifically, its structure comprises curing oven (UV curing oven) 18 as shown in Figure 1, is provided with a fibre coating dust inductor block 26 below curing oven 18, described fibre coating dust inductor block 26 comprises two guide wheels that are provided with pressure inductor and fine resolution instrument
The digital treating meter 25 that is built-in with the analysis conclusion of great number tested data obtains pressure sensitive data and fine resolution data from the guide wheel of fibre coating dust inductor block 26,
25 pairs of data of digital treating meter (pressure sensitive data and fine resolution data) obtain the dust condition judged result after analyzing, and the dust condition judged result is sent into fibre coating surface dust monitor 11,
Whether fibre coating surface dust monitor 11 analyzes dust exceeding according to the dust condition judged result, and the dust exceeding warning signal is sent into curing oven PID controller 3,
Whether curing oven PID controller 3 is connected with wire-drawer-tower central controller 2, and eliminate according to dust exceeding warning and to send alarm to wire-drawer-tower central controller 2 and remove instruction or shut down maintenance instruction,
Wire-drawer-tower central controller 2 is provided with for the registering instrument 1 that shows current alarm and running condition,
Optical fiber external coating (EC) (coatingsurface) dust condition monitor procedure is as follows:
1, the present invention is provided with a fibre coating dust inductor block 26 below curing oven 18, and optical fiber is behind overcuring, and through two guide wheels on the fibre coating dust inductor block 26, guide wheel is provided with pressure inductor and fine resolution instrument; Fibre coating dust inductor block 26 sends the data (pressure sensitive data and fine resolution data) that obtain to digital treating meter 25;
2, digital treating meter 25 is judged dust condition according to the analysis conclusion of great number tested data, and judged result is issued fibre coating surface dust monitor 11;
If 3 dust exceedings, then fibre coating surface dust monitor 11 is issued curing oven PID controller 3 with the dust exceeding warning signal;
4, curing oven PID controller 3 sends instructions on the one hand wire-drawer-tower central controller 2 to show that at registering instrument 1 this section optical fiber scraps, regulate successively on the one hand shielding gas flow amount setter 10 and the interior smoking pump 7 of curing oven in the curing oven, and oxygen level and the granule number counted in the monitor 6 Real Time Monitoring curing ovens by curing oven oxygen level monitor 9 and curing oven endoparticle improve situation;
If 5 through adjusting; the surface dust situation that fibre coating surface dust monitor 11 monitors is up to standard; then curing oven PID controller 3 sends alarm for wire-drawer-tower central controller 2 and removes instruction; if not up to standard, then curing oven PID controller 3 sends the shutdown maintenance instruction for wire-drawer-tower central controller 2.
On the basis of technique scheme, as shown in Figure 1, 2, 3, in the described curing oven 18, a built-in uv power monitoring device 14,
The inner end of described uv power monitoring device 14 divides former and later two faces to be placed with front power inductor 12 and rear power inductor 13,
The uv power that front power inductor 12 monitoring ultraviolet tubes 28 reflect through front-reflection cover 29,
After the luminous power that rear power inductor 13 monitoring ultraviolet tubes 28 send is passed the quartzy pipe core 27 of protection optical fiber 37, the uv power that reflects through back reflection cover 30 again;
The uv power that front power inductor 12 and rear power inductor 13 are measured is sent to uv power monitor 4 in the curing oven through uv power monitoring device 14,
As previously mentioned, uv power monitor 4, the interior uv power setter 5 of curing oven all directly are connected with curing oven PID controller 3 in the curing oven,
Uv power setter 5 is used for steering order is transferred to curing oven control power supply 17 in the curing oven,
Curing oven control power supply 17 provides electric power for the ultraviolet tube 28 in the curing oven 18.
The uv power monitor procedure is as follows:
1, in the curing oven 18, a built-in uv power monitoring device 14, power inductor 12 and rear power inductor 13 before the inner end of uv power monitoring device 14 divides former and later two faces to be placed with, the uv power that front power inductor 12 monitoring ultraviolet tubes 28 reflect through front-reflection cover 29, the luminous power that rear power inductor 13 monitoring ultraviolet tubes 28 send pass the uv power that the quartzy pipe core 27 of protection optical fiber 37 reflects by back reflection cover 30;
2, the uv power measured of front power inductor 12 and rear power inductor 13 is sent to uv power monitor 4 in the curing oven through uv power monitoring device 14, feeds back to curing oven PID controller 3 by uv power monitor 4 in the curing oven;
3, when monitoring luminous power that front power inductor 12 and/or rear power inductor 13 send when on the low side, curing oven PID controller 3 sends power and adjusts instruction to uv power setter 5 in the curing oven;
4, in the curing oven uv power setter 5 power is adjusted instruction transformation is that electric current and voltage is adjusted instruction, be transferred to again curing oven control power supply 17;
5, curing oven control power supply 17 is adjusted instruction according to electric current and voltage and is adjusted power supply output, power supply after adjusting is flowed to the interior ultraviolet tube 28 of curing oven 18, thereby make the ultraviolet tube 28 in the curing oven 18 strengthen uv power output, to reach service requirements;
If 6 is still on the low side through the power of power inductor 12 monitorings before after maximum the adjustment, then curing oven PID controller 3 sends fluorescent tube and reflector alarm command to wire-drawer-tower central controller 2;
7, wire-drawer-tower central controller 2 needs shutdown maintenance according to fluorescent tube and the prompting of reflector alarm command, and on the low side at registering instrument 1 demonstration uv power, may be that ultraviolet tube 28 or front-reflection cover 29 need to change, simultaneously the optical fiber in the above-mentioned time period be done to report to the police and process, this section optical fiber be scrapped;
If the power of 8 ultraviolet power inductor 12 monitorings after adjusting reaches requirement, the power of then power inductor 13 monitoring still is lower than service requirements, and then curing oven PID controller 3 sends quartzy pipe core and reflector alarm command to wire-drawer-tower central controller 2;
9, wire-drawer-tower central controller 2 needs shutdown maintenance according to quartzy pipe core and the prompting of reflector alarm command; and on the low side at registering instrument 1 demonstration uv power; may be that quartzy pipe core 27 or back reflection cover 30 need to change; simultaneously the optical fiber in the above-mentioned time period is done to report to the police and process, this section optical fiber is scrapped.
On the basis of technique scheme, shown in Fig. 1,4, described curing oven 18 is supporting the protection of curing gas supplementary unit, and described curing protection gas supplementary unit is located at quartzy pipe core 27 two ends, comprises supplementary unit housing 32,
Be provided with embedded guide 33 in the supplementary unit housing 32,
Protection gas ingress pipe 31 is communicated with embedded guide 33, and embedded guide 33 lower ends are communicated with quartzy pipe core 27,
Also be provided with an atmosphere delivery line 15 on the supplementary unit housing 32, atmosphere delivery line 15 1 ends are communicated with quartzy pipe core 27, and the other end is communicated with oxygen conten analyser 16,
Oxygen conten analyser 16 sends the oxygen level data to curing oven oxygen level monitor 9,
Be located at the curing of quartzy pipe core 27 upper ends and protect on the protection gas ingress pipe 31 of gas supplementary unit, be provided with the first mass flow controller 20;
Be located at the curing of quartzy pipe core 27 lower ends and protect on the protection gas ingress pipe 31 of gas supplementary unit, be provided with the second mass flow controller 22;
The control that first, second mass flow controller 20 and 22 is accepted shielding gas flow amount setter 10 in the curing oven realizes the adjusting of shielding gas flow amount.
Solidify protection gas supplementary unit working process as follows:
1, be provided with protection gas ingress pipe 31 on the curing protection gas supplementary unit, protection gas enters embedded guide 33 through protection gas ingress pipe 31, and finally enters in the quartzy pipe core 27,
Simultaneously, atmosphere delivery line 15 imports to the gas in the quartzy pipe core 27 in the oxygen conten analyser 16;
2, oxygen conten analyser 16 is transferred to curing oven oxygen level monitor 9 with the oxygen level monitoring situation that analysis obtains, and curing oven oxygen level monitor 9 is converted to numerary signal with the oxygen level data and feeds back to curing oven PID controller 3;
3,3 pairs of data analysis that obtain of curing oven PID controller if find that oxygen level is on the low side or higher, then send corresponding regulating command to shielding gas flow amount setter 10 in the curing oven;
4, shielding gas flow amount setter 10 is issued first, second mass flow controller 20,22 with regulating command in the curing oven, tunes up or turn down the shielding gas flow amount;
5, protection gas then enters in the quartzy pipe core 27 along protection gas ingress pipe 31;
If 6 through after maximum the adjustment, the oxygen level that curing oven oxygen level monitor 9 is analyzed is still higher, then may curing oven 18 interior existence gas leakage or protection conductance to enter inadequate smoking pressure excessive, curing oven PID controller 3 contrasts smoking pressure monitor device 8 and fibre coating surface dust monitoring device 11 in the curing oven simultaneously according to these situations, if the two data is good, then sends the maintenance curing oven and whether exist gas leakage and protection conductance to enter whether to have problems signal to wire-drawer-tower central controller 2;
7, wire-drawer-tower central controller 2 is according to these signals information that gives a warning, and the prompting maintenance personnel need carry out above-mentioned processing, and on registering instrument 1 above-mentioned optical fiber are sent the key monitoring signal.If fibre coating surface dust monitor 11 feedback optical fiber surface dusts exceed standard, then on registering instrument 1, above-mentioned optical fiber is scrapped processing, and prompting needs emergency stop to safeguard.
On the basis of technique scheme, shown in Fig. 1,5, described curing oven 18 is supporting the curing oven supplementary unit, and described curing oven supplementary unit is provided with granule number monitoring delivery line 34, smoke exhaust pipe 21,
Be provided with curing oven smoking pressure survey export mouth 36 at smoke exhaust pipe 21,
Granule number monitoring delivery line 34 1 ends are communicated with quartzy pipe core 27, and the other end is communicated with gas particles analyser 19,
Gas particles analyser 19 is counted monitor 6 to the curing oven endoparticle and is sent the amounts of particles data,
Pressure monitor table 23 sends to smoking pressure monitor device 8 in the curing oven through air-pressure electric-control transfer equipment 24 with pressure data.
Curing oven supplementary unit working process is as follows:
1, is provided with granule number monitoring delivery line 34, smoke exhaust pipe 21 at the curing oven supplementary unit, be provided with curing oven smoking pressure survey export mouth 36 at smoke exhaust pipe 21, curing oven smoking pressure survey export mouth 36 is incorporated into gas on the pressure monitor table 23 through a pipeline, and the pressure data that obtains sends smoking pressure monitor device 8 in the curing oven to through air-pressure electric-control transfer equipment 24;
2, obtain the pressure of smoking after 8 pairs of pressure datas of smoking pressure monitor device are analyzed in the curing oven, smoking pressure sends curing oven PID controller 3 to;
3, find the smoking hypotony or when too high, send regulating command to curing oven smoking pump 7 when curing oven PID controller 3;
4, curing oven smoking pump 7 is extracted flue dust in the curing oven out by smoke exhaust pipe 21 through the smoking pipeline;
If 5 through regulating to greatest extent, smoking pressure monitor device 8 still provides the hypotensive signal of smoking in the curing oven, the command that curing oven PID controller 3 will need curing oven smoking pump 7 and smoking pipeline are safeguarded on the one hand is to wire-drawer-tower central controller 2, and one side is monitored the curing oven endoparticle and counted monitor 6;
Show normally if the curing oven endoparticle is counted monitor 6, then on registering instrument 1, only point out this section optical fiber to pay close attention to; 6 demonstrations exceed standard if the curing oven endoparticle is counted monitor, and then wire-drawer-tower central controller 2 sends needs to shut down the warning of safeguarding, this section optical fiber is done scrapped processing simultaneously;
6, be provided with granule number monitoring delivery line 34 at the curing oven supplementary unit, gas imported in the gas particles analyser 19 through piping;
7, gas particles analyser 19 sends the data that obtain to the curing oven endoparticle and counts monitor 6;
8, the curing oven endoparticle is counted behind 6 pairs of data analysis of monitor conversion of signals as having the numerary signal of same communication protocol with curing oven PID controller 3;
9, according to this numerary signal, if curing oven PID controller 3 is found the signal that obtains and is shown that granule number is higher, then send instructions to smoking pump 7 in the curing oven on the one hand, the curing oven pressure of smoking is improved, send instructions on the other hand to shielding gas flow amount setter 10 in the curing oven, in curing oven oxygen level monitor 9 tolerance bands, reduce slightly the shielding gas flow amount, improve some oxygen levels;
10, curing oven PID controller 3 sends instruction for wire-drawer-tower central controller 2 to show that at registering instrument 1 this section optical fiber need to pay close attention to, and warns;
If 11 after overregulating, the curing oven endoparticle is counted monitor 6 and is sent the normal signal of curing oven endoparticle number, and then curing oven PID controller 3 sends instruction and sounds all clear;
If 12 after overregulating, the curing oven endoparticle is counted monitor 6 and is still sent the curing oven endoparticle number signal that exceeds standard, the data of uv power monitor 4 and fibre coating surface dust monitor 11 in the curing oven PID controller 3 contrast curing ovens, if the two is still normal, this section of demonstration optical fiber that then only sends instructions need be paid close attention to, and carries out maintenance of the equipment after the drawing end of warning;
If the data of uv power monitor 4 or optical fiber surface dust control device 11 are near threshold value in 13 curing ovens, this means that solidifying quality is in an unsure state, then 3 alarms of curing oven PID controller need be shut down maintenance.
The working process of system can be summarized as follows shown in Fig. 1～5:
When uv power monitor 4 in the curing oven detects uv power when on the low side, heighten curing oven control power supply 17 by curing oven PID controller 3 by uv power setter 5 in the curing oven, strengthen power stage, and by the front power inductor 12 of curing oven optical power monitoring apparatus and the behaviour in service of rear power inductor 13 monitoring reflectors and quartzy pipe core, send in real time early warning signal, prepare it is overhauled; When detecting the optical fiber dust by digital treating meter 25 and fibre coating dust inductor block 26, fibre coating surface dust monitoring device 11 approaches when exceeding standard or exceeding standard; curing oven PID controller 3 allows first, second mass flow controller 20,22 regulate curing oven shielding gas flow amount by shielding gas flow amount setter 10 in the curing oven; reduce oxygen level; and by smoking pump 7 in the curing oven; increasing reduces the curing oven granule number from the draft of smoke exhaust pipe 21.Simultaneously, curing oven PID controller 3 sends optical fiber and scraps signal to wire-drawer-tower central controller 2, by registering instrument 1 with its demonstration, until recover normal after, cancel again optical fiber and scrap signal.In addition; when if the curing oven endoparticle is counted monitor 6 and is detected the curing oven endoparticle and exceed standard by gas particles analyser 19; to regulate curing oven protection gas; regulate the interior oxygen level of curing oven or regulate the smoking pressure by smoking pump in the curing oven 7, pressure data is by smoking pressure monitor device 8 Real Time Monitorings in the curing oven and feed back to curing oven PID controller 3.By above-mentioned adjusting, form the closed loop control system that the curing oven fibre coating solidifies quality.
Below be two specific embodiments
Embodiment one:
Optical fiber with the 1800m/min pulling process in, uv power is at 3.2w/cm in the curing oven
2Oxygen level is at 1.2ppm in the curing oven, curing oven curing oven smoking pressure is at 150Pa, curing oven endoparticle number is 1025, the optical fiber surface dust is 0.0009mm, when being drawn to 100km, fibre coating surface dust monitor 11 sends alarm: the optical fiber surface dust reaches 0.006mm, because near the limit of 0.01mm, curing oven PID controller 3 sends the optical fiber quality early warning, require wire-drawer-tower central controller 2 on registering instrument 1, to begin to show at optical fiber surface dust control curve unusual from 100km, and according to internal algorithm, according to oxygen level data in the curing oven of oxygen level monitor 9 feedbacks, by shielding gas flow amount setter 10 in the curing oven, to pass into the interior nitrogen flow of curing oven and rise to 100l/min from 80l/min, oxygen level will be dropped to 0.7ppm; Fibre coating surface dust monitor 11 feedback optical fiber surface dust situations are still at 0.005mm, descend limited, then continue to promote curing oven curing oven smoking pressure to 200Pa, it is 2500 that the curing oven endoparticle is counted monitor 6 feedback granule numbers, and this value is smaller; Curing oven PID controller 3 requires curing oven control power supply 17 to promote output rating by curing oven uv power setter 5, thereby promotes uv power in the curing oven according to above-mentioned integrated information like this; Power inductor 12 power reach 4.0w/cm before uv power monitor 4 feedbacks in curing oven
2, rear power inductor 13 reaches 3.6w/cm
2The time, the output of curing oven control power supply 17 firm powers.This moment, the optical fiber surface dust condition of fibre coating surface dust monitor 11 monitorings was reduced to 0.001mm.Curing oven PID controller 3 is removed alarm, and at this moment, fibre-optical drawing length is 102km.Wire-drawer-tower central controller 2 is removed abnormal indication at registering instrument 1 at the 102km place, and prompting need be processed or be scrapped especially from the 2km optical fiber of 100～102km.Because the front power inductor 12 of uv power and the difference power between the rear power inductor 13 reach 0.4w/cm in the curing oven
2, curing oven PID controller 3 can provide prompting, requires quartzy pipe core 27 and back reflection cover 30 in the curing oven to be checked, and do conscientious cleaning after this draws end, in case of necessity replaceable new quartzy pipe core and reflector.
Embodiment two:
In fiber draw process, draw rate is at 1800m/min, and curing oven smoking pressure is 200Pa, and oxygen level is 0.6ppm in the curing oven, and nitrogen flow is 60l/min in the curing oven, and curing oven UV-light mean power is 3.0w/cm
2, two inductor block difference powers are 0.1w/cm
2, curing oven endoparticle number is 3000 grades, the optical fiber surface dust condition is 0.002mm.Fibre-optical drawing is during to 500km, and the front power inductor 12 that uv power detects in the curing oven detects uv power and is reduced to 2.5w/cm
2, the uv power that rear power inductor 13 detects is reduced to 2.4w/cm
2This moment, curing oven oxygen level monitor 9, the data that the curing oven endoparticle is counted monitor 6 fibre coating surface dust monitors 11 feedbacks all do not change, but because being lower than, uv power just begun the uv power that draws, curing oven PID controller 3 still provides the early warning signal that fibre coating solidifies quality, and wire-drawer-tower central controller 2 begins to provide the early warning demonstration that fibre coating solidifies quality from 500km on registering instrument 1.The technologist begins to pay close attention to the uv power of uv power monitoring device 4 feedbacks.Simultaneously curing oven control power supply 17 begins to promote output rating.But along with the lifting of output rating, the uv power of uv power monitoring device 4 feedbacks does not increase, and along with the prolongation of the time of drawing, the uv power downward trend occurs on the contrary.When uv power drops to 2.0w/cm
2The time, curing oven PID controller 3 although judge that data of other monitoring optical fiber curing quality are all normal at this moment, because the uv power performance is unusual, sends the instruction that interruption draws and overhauls according to the correlation data of storage and the slope of decline then.Wire-drawer-tower central controller 2 interrupts drawing immediately.Technologist immediately emphasis checks curing oven control power supply 17 and ultraviolet tube 28, finds that ultraviolet tube 28 goes wrong, changed new fluorescent tube after, again draw.
The present invention collects the various monitor datas in the curing oven first and gathers (by the uv power in each assembly monitor curing oven, oxygen level, shielding gas flow amount, curing oven smoking pressure, curing oven endoparticle quantity and optical fiber external coating (EC) dust condition); And monitor data fed back to central PID Controlling System; System is according to the rule of thumb data of the lot of experiments accumulation data analysis to these collections, through intelligent computing with adjust after, send corresponding adjustment instruction, make curing oven be in all the time normal operating conditions; And in time each guard signal is sent to wire-drawer-tower master control system (result who obtains after the monitor data of curing oven is definite according to great number tested data according to us converts it to the quality monitoring demonstration of fibre coating curing and the working order of curing oven shows the master control system that sends wire-drawer-tower to), the optical fiber quality that draws is monitored; Master control system shows at registering instrument (wire drawing key parameter real-time recorder) after with various state sets, corresponding operating method is provided for operator and slip-stick artist, make the clear and definite system of slip-stick artist and operator need which kind of concrete maintenance, thereby effectively solve the unexpected situation in the drawing process, the effective guarantee fibre coating solidifies quality.
Described system characteristics are as follows:
1, can realize the highest 5w/cm of bringing up to of uv power
2Level, and at 1w/cm
2With 5w/cm
2Between smoothly controlled.
2, can realize tolerance range in the flow control of 0.1l/min, the protection gas that passes into is high-purity N
2, the protection gas the flow setting range at 20l/min between the 200l/min.
3, tester 14 occupy the center of 2 wires of quartzy pipe core 27 and ultraviolet tube 28.Ultraviolet tube 28 is in the focus of front-reflection cover 29, and quartzy pipe core is in the focus of back reflection cover 30.This device can be measured the minimum precision of uv power at 0.1mw/cm
2Above.When uv power is lower than 3w/cm
2The time provide guard signal.
4, can realize that precision reaches the oxygen level monitoring of 1ppm precision, and can explain respectively each state of oxygen level, when oxygen level was lower than 0.1ppm, this device can send signal on the low side, can send higher signal when oxygen level is higher than 5ppm.
5, can the monitor force precision be 0.1Pa, maximum monitor force be to 1000pa.In addition, this device continuous adjusting of pressure between from 10Pa to 1000Pa that can realize smoking.When smoking pressure is lower than 20Pa or is higher than 1000Pa, provide guard signal.
6, can carry out Wide range monitoring control to curing oven endoparticle number.Monitor particles is counted maximum value can reach 100,000 grades.When the granule number of monitoring surpasses 5000 grades, the curing oven endoparticle is counted monitor 6 will send guard signal.
7, can stay dust granules when optical fiber passes inductor block 26, the treated device of induced signal 25 can send to fibre coating surface dust monitor 11 with the dust analysis situation after this is analyzed.When dust condition on the inductor block 26 surpassed 0.01mm, fibre coating surface dust monitor 11 sent guard signal.
Although invention has been described in conjunction with thinking at present the most practical embodiment and two the most frequently used embodiment, but the invention is not restricted to the disclosed embodiments, also comprised amplification implication and variation that the claims spirit and scope are included.
Claims (1)
1. a full-automatic high-speed wire drawing curing system is characterized in that, comprising:
Curing oven (18) is provided with a fibre coating dust inductor block (26) below curing oven (18), described fibre coating dust inductor block (26) comprises two guide wheels that are provided with pressure inductor and fine resolution instrument,
The digital treating meter (25) that is built-in with the analysis conclusion of great number tested data obtains pressure sensitive data and fine resolution data from the guide wheel of fibre coating dust inductor block (26),
Digital treating meter (25) is to obtaining the dust condition judged result after the data analysis, and the dust condition judged result is sent into fibre coating surface dust monitor (11),
Whether fibre coating surface dust monitor (11) analyzes dust exceeding according to the dust condition judged result, and the dust exceeding warning signal is sent into curing oven PID controller (3),
Whether curing oven PID controller (3) is connected with wire-drawer-tower central controller (2), and eliminate according to dust exceeding warning and to send alarm to wire-drawer-tower central controller (2) and remove instruction or shut down maintenance instruction,
Wire-drawer-tower central controller (2) is provided with for the registering instrument (1) that shows current alarm and running condition,
Uv power monitor (4), the interior uv power setter (5) of curing oven, curing oven oxygen level monitor (9), the interior shielding gas flow amount setter (10) of curing oven, the interior smoking pressure monitor device (8) of curing oven, the interior smoking pump (7) of curing oven, curing oven endoparticle are counted monitor (6) and directly are connected with curing oven PID controller (3) respectively in the curing oven;
In the described curing oven (18), a built-in uv power monitoring device (14),
The inner end of described uv power monitoring device (14) divides former and later two faces to be placed with front power inductor (12) and rear power inductor (13),
The uv power that front power inductor (12) monitoring ultraviolet tube (28) reflects through front-reflection cover (29),
After the luminous power that rear power inductor (13) monitoring ultraviolet tube (28) sends is passed the quartzy pipe core (27) of protection optical fiber (37), the uv power that reflects through back reflection cover (30) again;
The uv power that front power inductor (12) and rear power inductor (13) are measured is sent to uv power monitor (4) in the curing oven through uv power monitoring device (14),
Uv power setter (5) is used for steering order is transferred to curing oven control power supply (17) in the curing oven,
Curing oven control power supply (17) provides electric power for the ultraviolet tube (28) in the curing oven (18);
Described curing oven (18) is supporting to have curing to protect the gas supplementary unit, and described curing protection gas supplementary unit is located at quartzy pipe core (27) two ends, comprises supplementary unit housing (32),
Be provided with embedded guide (33) in the supplementary unit housing (32),
Supplementary unit housing (32) upper end is provided with the protection gas ingress pipe (31) of perpendicular connection,
Protection gas ingress pipe (31) is communicated with embedded guide (33), and embedded guide (33) lower end is communicated with quartzy pipe core (27),
Also be provided with an atmosphere delivery line (15) on the supplementary unit housing (32), atmosphere delivery line (15) one ends are communicated with quartzy pipe core (27), and the other end is communicated with oxygen conten analyser (16),
Oxygen conten analyser (16) sends the oxygen level data to curing oven oxygen level monitor (9),
Be located at the curing of quartzy pipe core (27) upper end and protect on the protection gas ingress pipe (31) of gas supplementary unit, be provided with the first mass flow controller (20);
Be located at the curing of quartzy pipe core (27) lower end and protect on the protection gas ingress pipe (31) of gas supplementary unit, be provided with the second mass flow controller (22);
The control that the first mass flow controller (20) and the second mass flow controller (22) are accepted shielding gas flow amount setter (10) in the curing oven realizes the adjusting of shielding gas flow amount;
Described curing oven (18) is supporting to have curing oven supplementary unit, described curing oven supplementary unit to be provided with granule number monitoring delivery line (34), smoke exhaust pipe (21),
Be provided with curing oven smoking pressure survey export mouth (36) at smoke exhaust pipe (21),
Granule number monitoring delivery line (34) one ends are communicated with quartzy pipe core (27), and the other end is communicated with gas particles analyser (19),
Gas particles analyser (19) is counted monitor (6) to the curing oven endoparticle and is sent the amounts of particles data,
Smoke exhaust pipe (21) one ends are communicated with quartzy pipe core (27), and the pressure detection end is connected with pressure monitor table (23) through curing oven smoking pressure survey export mouth (36), and the end of smoking is connected with smoking pump (7) in the curing oven,
Pressure monitor table (23) sends to smoking pressure monitor device (8) in the curing oven through air-pressure electric-control transfer equipment (24) with pressure data.
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| CN102495451B (en) * | 2011-11-25 | 2013-12-25 | 四川飞普科技有限公司 | Automatic vertical sectional bake glue curing machine and operation method thereof |
| CN104063984A (en) * | 2013-03-21 | 2014-09-24 | 英华达（南京）科技有限公司 | Automatic standard exceeding alarm method of defective product |
| CN105716782A (en) * | 2014-12-05 | 2016-06-29 | 周峰 | Fiber grating wind pressure sensor |
| CN105271708B (en) * | 2015-11-18 | 2018-11-02 | 通鼎互联信息股份有限公司 | A kind of device and control method preventing the oxidation of fibre drawing furnace gas blowby |
| CN111548027A (en) * | 2020-06-04 | 2020-08-18 | 深圳信息职业技术学院 | High-speed optical fiber drawing ultraviolet curing device |
| CN112250318A (en) * | 2020-10-22 | 2021-01-22 | 武汉长盈通光电技术股份有限公司 | Ultraviolet curing full-closed-loop control device and method for optical fiber drawing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255005A (en) * | 2008-04-10 | 2008-09-03 | 中天科技光纤有限公司 | Production method of ultralow-polarization dispersive single-mode fiber |
| CN201121165Y (en) * | 2007-10-24 | 2008-09-24 | 江苏亨通光纤科技有限公司 | Apparatus for reducing optical fiber slime development of optical fiber uv-curing furnace |
| CN101417859A (en) * | 2008-12-10 | 2009-04-29 | 烽火通信科技股份有限公司 | Optical fibre coating cured auxiliary device of ultraviolet curing oven |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06293538A (en) * | 1993-04-06 | 1994-10-21 | Showa Electric Wire & Cable Co Ltd | Method for controlling uv irradiation device |
| JP3505470B2 (en) * | 2000-04-06 | 2004-03-08 | 古河電気工業株式会社 | Optical fiber coating forming equipment |
-
2010
- 2010-12-13 CN CN 201010583763 patent/CN102173603B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201121165Y (en) * | 2007-10-24 | 2008-09-24 | 江苏亨通光纤科技有限公司 | Apparatus for reducing optical fiber slime development of optical fiber uv-curing furnace |
| CN101255005A (en) * | 2008-04-10 | 2008-09-03 | 中天科技光纤有限公司 | Production method of ultralow-polarization dispersive single-mode fiber |
| CN101417859A (en) * | 2008-12-10 | 2009-04-29 | 烽火通信科技股份有限公司 | Optical fibre coating cured auxiliary device of ultraviolet curing oven |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平6-293538A 1994.10.21 |
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