CN102520199B

CN102520199B - On-line detection method of dye liquor components of bundle dyeing machine based on boards

Info

Publication number: CN102520199B
Application number: CN 201110412068
Authority: CN
Inventors: 王冬青; 宋桂玲; 韩光亭; 刘丛林; 王伟; 何文雪; 范维岩; 焦永刚
Original assignee: LANYAN GROUP CO Ltd; Qingdao University
Current assignee: LANYAN GROUP CO Ltd; Qingdao University
Priority date: 2011-12-12
Filing date: 2011-12-12
Publication date: 2013-07-17
Anticipated expiration: 2031-12-12
Also published as: CN102520199A

Abstract

The invention discloses an on-line detection method of dye liquor components (rongalite, indigo and sodium hydroxide) of a bundle dyeing machine based on YanHua boards. An on-line detection system designed by the method comprises an indigo dye liquor on-line detection unit, a sulfuration dye liquor on-line detection unit, a calibration unit, boards, and an industrial control computer. According to the invention, a dye liquor sample in a dye vat of the dyeing machine is on-line detected in real time, the industrial control computer and the boards are used as a core are used, the concentration of the corresponding components of the dye liquor is on-line detected in real time by using potentiometric titration method, and the pH value and temperature of the dye liquor are on-line detected in real time, and pipelines are cleaned by the system after every detection completes. The method further can calibrate the indigo or sulfuration dye liquor on-line detection unit according to requirements to guarantee the accuracy of the detection results. The method can guarantee the detection precision of the dye liquor components, so as to raise the dyeing quality of dyed fabrics, thus the production cost is reduced, and the labor intensity of technical workers is reduced.

Description

Pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board

Technical field

The present invention relates to a kind of dye liquor component on-line detection method of pencil overflow dyeing machine, be applicable to the field of textile being dyeed with reducing dye.

Background technology

With indigo dye liquor or sulfuration dye liquor the denim fiber being dyeed, to the detection of each components contents in the consumption of corresponding reduction dye liquor, the dye liquor, is to adopt manually to detect.Because the time interval of manual detection is long, it is different with the sense of responsibility height to add randomness, inexactness that operating personnel itself have, human factor is bigger to the testing result influence of dyeing component, also just be difficult to control in the staining bath dyeing component and keep stable, defective cloth namely appears in the front and back aberration that this just causes dyeing.Therefore guarantee the measurement of precise and stable dye liquor component, reduce artificial factor, become the key of the dyeing quality of dyeing industry control dye aberration and defective cloth and then assurance yarn fabric.

Summary of the invention

Thereby being to provide a kind of, task of the present invention in the operational process of pencil overflow dyeing machine, can carry out online detection raising overflow dyeing machine to the method for the dyeing quality of yarn fabric to dye liquor component wherein.

The technical scheme that realizes task of the present invention is:

A kind of pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board comprises the steps:

1. on-line detecting system is set, topworks and checkout equipment that this system comprises industrial control computer and is controlled by industrial control computer, carry out exchanges data by integrated circuit board PCI-1710 and PCI-1753 between them, integrated circuit board PCI-1710 has 16 tunnel single-ended analog quantity inputs, the output of 2 tunnel analog quantitys, the input of 16 road digital quantities and the output of 16 road digital quantities, and integrated circuit board PCI-1753 has 96 road digital quantity I/O; Industrial control computer only is connected with integrated circuit board, by integrated circuit board acquisition testing data and control topworks; Checkout equipment comprises conductivity sensor and the conductivity transmitter in pH electrode in indigo dye liquor on-line measuring device and the sulfuration dye liquor on-line measuring device and ORP electrode and transmitter, temperature sensor and temperature transmitter, the indigo dye liquor on-line measuring device, and demarcates pH electrode and ORP electrode and transmitter thereof in the cleaning device; Topworks comprises indigo dye liquor on-line measuring device and volume pump, sampling pump, ebullator and the frequency converter, solenoid valve and the pneumatic valve that vulcanize in the dye liquor on-line measuring device; When 2. overflow dyeing machine is in normal operating conditions, second sampling pump is in running status all the time in first sampling pump in the indigo dye liquor on-line measuring device and the sulfuration dye liquor on-line measuring device, first sampling pump extracts dye liquor incessantly from indigo staining bath, second sampling pump extracts dye liquor incessantly from the sulfuration staining bath; Indigo dye liquor component testing process is: when total system was in holding state, when namely not needing to detect indigo dye liquor component, the indigo dye liquor that first sampling pump extracts was sent back to indigo staining bath again, namely constitutes outer circulation between indigo staining bath and first sampling pump; When needs detect indigo dye liquor component, stop the outer circulation that constitutes between indigo staining bath and first sampling pump, the indigo dye liquor that first sampling pump extracts arrives indigo dye liquor sample cylinder through first ebullator, gets back to indigo staining bath through internal pipeline again, circulation in constituting, at this moment, indigo dye liquor sample cylinder is full of indigo dye liquor, through behind the certain hour, and circulation in stopping, rebuild the outer circulation between indigo staining bath and first sampling pump, indigo dye liquor component on-line measuring device begins sampling; After finishing sampling, the beginning titration, namely the indigo dye liquor sample of gathering is carried out redox titration, carrying out along with the redox titration process, ORP electrode detection in the indigo dye liquor component on-line measuring device to electric potential signal change, industrial control computer is drawn " titration consumption-current potential " coordinate diagram simultaneously; After finishing titration, industrial control computer adopts second order difference quotient method to calculate 2 potential jump points that an ORP electrode detection arrives, and calculates the concentration of sodium hydrosulfite in the dye liquor according to oxygenant addition, the concentration of oxygenant and the volumescope of indigo dye liquor sample that the 1st potential jump point is corresponding; Calculate concentration indigo in the dye liquor sample according to oxygenant addition, the concentration of oxygenant and the volumescope of indigo dye liquor sample that the 2nd potential jump point is corresponding; Simultaneously, the pH value of the indigo dye liquor sample of a pH electrode detection of indigo dye liquor component on-line measuring device, first temperature sensor detects the temperature of ducted indigo dye liquor, and conductivity sensor detects the conductivity of the indigo dye liquor in the indigo staining bath; After detection was finished, system was cleaned pipeline, and system enters holding state then, waited for next time and detecting; As required, system also can carry out hot water, acetic acid and drift ice to pipeline to be cleaned, and the pH electrode in the indigo dye liquor sample cylinder and an ORP electrode are demarcated; Sulfide dye liquor component testing process is: when total system was in holding state, when namely not needing to detect sulfuration dye liquor component, the sulfuration dye liquor that second sampling pump extracts was sent back to the sulfuration staining bath again, namely vulcanizes between staining bath and second sampling pump to constitute outer circulation; When needs detect sulfuration dye liquor component, stop vulcanizing the outer circulation that constitutes between staining bath and second sampling pump, the sulfuration dye liquor that second sampling pump extracts arrives sulfuration dye liquor sample cylinder through second ebullator, gets back to the sulfuration staining bath through internal pipeline again, circulation in constituting, at this moment, sulfuration dye liquor sample cylinder is full of the sulfuration dye liquor, through behind the certain hour, and circulation in stopping, rebuild the outer circulation between sulfuration staining bath and second sampling pump, sulfuration dye liquor component on-line measuring device begins sampling; After finishing sampling, the beginning titration, namely the sulfuration dye liquor sample of gathering is carried out redox titration, carrying out along with the redox titration process, the online detected electric potential signal of the 2nd ORP electrode of sulfuration dye liquor component on-line measuring device changes, industrial control computer is drawn " titration consumption-current potential " coordinate diagram simultaneously, after titration is finished, industrial control computer adopts second order difference quotient method to calculate the electric potential signal catastrophe point that the 2nd ORP electrode detection arrives, and according to the addition of oxygenant this moment, the volumescope of the concentration of oxygenant and sulfuration dye liquor sample is calculated the concentration of sulfide in the dye liquor; Simultaneously, the pH value of the 2nd pH electrode detection sulfuration dye liquor sample of sulfuration dye liquor component on-line measuring device, second temperature sensor detects the temperature of ducted sulfuration dye liquor; After detection was finished, system was cleaned pipeline, and system enters holding state then, waited for next time and detecting; As required, system also can carry out hot water, acetic acid and drift ice to pipeline to be cleaned, and the 2nd pH electrode and the 2nd ORP electrode in the sulfuration dye liquor sample cylinder are demarcated.

Above-mentioned steps 1. in, indigo component on-line measuring device comprises: indigo dye liquor sample cylinder, a pH electrode and an ORP electrode and the first electrode transmitter, first temperature sensor and first temperature transmitter, conductivity sensor and conductivity transmitter, the first volume pump group, first sampling pump, first ebullator and first frequency converter; The volumetric soiutions of indigo dye liquor is indigo spreading agent and indigo titrant; The one pH electrode and an ORP electrode are installed in the indigo dye liquor sample cylinder; The one pH electrode all is connected with the first electrode transmitter with an ORP electrode, first temperature sensor that is connected with first temperature transmitter places the connecting tube between first sampling pump and first ebullator, and the conductivity sensor that is connected with the conductivity transmitter places indigo staining bath; The above-mentioned first electrode transmitter, first temperature transmitter and conductivity transmitter are connected with integrated circuit board PCI-1710, and the first volume pump group is connected with integrated circuit board PCI-1753, and first ebullator is connected with integrated circuit board PCI-1710 by first frequency converter; Indigo spreading agent injects indigo dye liquor sample cylinder by a volume pump in the first volume pump group, and indigo titrant injects indigo dye liquor sample cylinder by No. two volume pumps in the first volume pump group; The curable component on-line measuring device comprises: sulfuration dye liquor sample cylinder, the 2nd pH electrode and the 2nd ORP electrode and the second electrode transmitter, second temperature sensor and second temperature transmitter, the second volume pump group, second sampling pump, second ebullator and second frequency converter; The sulfuration volumetric soiutions is sulfuration spreading agent and sulfuration titrant; The 2nd pH electrode and the 2nd ORP electrode are installed in the sulfuration dye liquor sample cylinder; The 2nd pH electrode all is connected with the second electrode transmitter with the 2nd ORP electrode, and second temperature sensor that is connected with second temperature transmitter places the connecting tube between second sampling pump and second ebullator; The second electrode transmitter is connected with integrated circuit board PCI-1710 with second temperature transmitter, and the second volume pump group is connected with integrated circuit board PCI-1753, and second ebullator is connected with integrated circuit board PCI-1710 by second frequency converter; The sulfuration spreading agent injects sulfuration dye liquor sample cylinder by No. three volume pumps in the second volume pump group, and sulfuration titrant injects sulfuration dye liquor sample cylinder by No. four volume pumps in the second volume pump group; Above-mentioned demarcation cleaning device comprises demarcates cylinder, the 3rd pH electrode and the 3rd ORP electrode and third electrode transmitter, the 3rd volume pump group; The 3rd pH electrode all is connected with the third electrode transmitter with the 3rd ORP electrode, and the third electrode transmitter is connected with integrated circuit board PCI-1710, and the 3rd volume pump group is connected with integrated circuit board-1753; Acetic acid injects indigo by No. five volume pumps in the 3rd volume pump group or sulfuration dye liquor sample cylinder, and drift ice injects indigo by No. six volume pumps in the 3rd volume pump group or sulfuration dye liquor sample cylinder.Above-mentioned pneumatic valve has 38, is respectively pneumatic valve to 38 pneumatic valve No. 1, and each pneumatic valve solenoid valve corresponding with it is connected, and all solenoid valves are connected with integrated circuit board PCI-1753, and pneumatic valve is by solenoid control; System can open different pipe path by the combination operation to different pneumatic valves, with volume pump and ebullator interoperation, realize whole system function: comprise the indigo or sulfuration dye liquor concentration of component of online detection, demarcate electrode or purging system in indigo or the sulfuration dye liquor sample cylinder.

Above-mentioned steps 2. in, when system is full of soft water from pneumatic valve complete shut-down and indigo dye liquor sample cylinder holding state enters indigo dye liquor component testing state, open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, discharge the soft water in the indigo dye liquor sample cylinder, after the soft water discharging is clean, close whole pneumatic valves; Open pneumatic valve by following order then: No. 15 → No. 4 → 8, No. 9 → No. 7 → No. 24, stop the outer circulation between indigo staining bath and first sampling pump, set up the interior circulation between indigo staining bath and the internal system pipeline; After circulation a period of time, press following order closed portion pneumatic valve: No. 24 → No. 7 → No. 4 → No. 15, circulation in stopping rebulids the outer circulation between indigo staining bath and first sampling pump, and system begins sampling; At this moment, be full of indigo dye liquor in the indigo dye liquor sample cylinder, opened pneumatic valve by following order: No. 1 → No. 35 → No. 5 → No. 38, take quantitative indigo dye liquor sample, get rid of unnecessary dye liquor; After wherein No. 35 pneumatic valves are opened, namely feed nitrogen to indigo dye liquor sample cylinder, purpose is the air that drains in the indigo dye liquor sample cylinder, prevents that indigo dye liquor sample is oxidized; The indigo dye liquor sample of gathering is arranged in pipeline and first ebullator at 8, No. 9 pneumatic valve places, and subsequently, press following order closed portion pneumatic valve: No. 38 → No. 5 → No. 35, sampling is finished; For preventing that titration process from producing bubble and causing indigo dye liquor sample cylinder to be difficult to clean and make a pH electrode and an ORP electrode touch indigo dye liquor sample, under the control of industrial control computer, a volume pump begins to inject spreading agent in indigo dye liquor sample cylinder, simultaneously, first ebullator begins with slow speed operation, make indigo dye liquor sample between indigo dye liquor sample cylinder and first ebullator, constitute inner partial circulating, be convenient to indigo dye liquor sample and fully mix with indigo spreading agent; System begins titration then, injects titrant by No. two volume pumps in indigo dye liquor sample cylinder, and at this moment, first ebullator still with slow speed operation, is convenient to fully carrying out of redox reaction; In the titration process, the one pH electrode and an ORP electrode detection to signal all be sent to the first electrode transmitter, signal is sent to the analog quantity input port of integrated circuit board PCI-1710 after the first electrode transmitter is handled, integrated circuit board PCI-1710 is that digital signal is sent to industrial control computer afterwards with these analog signal conversion, industrial control computer is drawn " titration consumption---current potential " coordinate diagram according to the variation relation of titrant consumption and current potential; After finishing titration, industrial control computer adopts second order difference quotient method to calculate 2 electric potential signal catastrophe points, and calculates the concentration of sodium hydrosulfite in the dye liquor according to the 1st potential jump point corresponding oxygenant addition, the concentration of oxygenant and the volumescope of indigo dye liquor sample; Calculate concentration indigo in the dye liquor sample according to the 2nd potential jump point corresponding oxygenant addition, the concentration of oxygenant and the volumescope of indigo dye liquor sample again; In like manner, system is full of soft water from pneumatic valve complete shut-down and sulfuration dye liquor sample cylinder holding state enters when vulcanizing dye liquor component testing state, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, soft water in the discharging sulfuration dye liquor sample cylinder, after discharging is clean, close whole pneumatic valves; Open pneumatic valve by following order again: No. 16 → No. 2 → 10, No. 11 → No. 12 → No. 23, stop the outer circulation between sulfuration staining bath and second sampling pump, set up the interior circulation between sulfuration staining bath and the internal system pipeline; After circulation a period of time, press following order closed portion pneumatic valve: No. 23 → No. 12 → No. 2 → No. 16, circulation in stopping rebulids the outer circulation between sulfuration staining bath and second sampling pump, and system begins to sample; At this moment, be full of the sulfuration dye liquor in the sulfuration dye liquor sample cylinder, opened pneumatic valve by following order: No. 3 → No. 34 → No. 6 → No. 38, take quantitatively to vulcanize the dye liquor sample, get rid of unnecessary dye liquor; After wherein No. 34 pneumatic valves are opened, namely feed nitrogen to sulfuration dye liquor sample cylinder, purpose is the air that drains in the sulfuration dye liquor sample cylinder, and it is oxidized to prevent from vulcanizing the dye liquor sample; The sulfuration dye liquor sample of gathering is arranged in pipeline and second ebullator at 10, No. 11 pneumatic valve places, then, presses following order closed portion pneumatic valve: No. 38 → No. 6 → No. 34; After sampling is finished, for preventing that titration process from producing bubble and causing sulfuration dye liquor sample cylinder to be difficult to cleaning and the 2nd pH electrode and the 2nd ORP electrode are touched vulcanize the dye liquor sample, under the control of industrial control computer, No. three volume pumps begin to inject spreading agent in sulfuration dye liquor sample cylinder, simultaneously, second ebullator begins with slow speed operation, make sulfuration dye liquor sample between sulfuration dye liquor sample cylinder and second ebullator, constitute inner partial circulating, be convenient to vulcanize the dye liquor sample and fully mix with the sulfuration spreading agent; System begins titration then, injects titrant by No. four volume pumps in sulfuration dye liquor sample cylinder, and at this moment, second ebullator still with slow speed operation, is convenient to fully carrying out of redox reaction; In the titration process, the 2nd pH electrode and the 2nd ORP electrode detection to signal all be sent to the second electrode transmitter, signal is sent to the analog quantity input port of integrated circuit board PCI-1710 after the second electrode transmitter is handled, integrated circuit board PCI-1710 is that digital signal is sent to industrial control computer afterwards with these analog signal conversion, industrial control computer is drawn " titration consumption---current potential " coordinate diagram according to the variation relation of titrant consumption and current potential; After titration was finished, industrial control computer adopted second order difference quotient method to calculate the electric potential signal catastrophe point, and calculated the concentration of sulfide in the sulfuration dye liquor according to the corresponding oxygenant addition of potential jump point, oxidant concentration and sulfuration dye liquor sample volume.

Above-mentioned steps 1. in, when system is in running order, the one pH electrode interior has the first electrode temperature sensor, be used for detecting in real time the temperature of indigo dye liquor sample, after temperature signal is sent to the first electrode transmitter, in the first electrode transmitter measured pH value is carried out temperature compensation, then, the pH value after the first electrode transmitter will compensate is sent to the analog input end of integrated circuit board PCI-1710; The one ORP electrode also is sent to the first electrode transmitter with detected electric potential signal; First temperature sensor is sent to the temperature signal that records in first temperature transmitter, is passed the signal to the analog quantity input end of integrated circuit board PCI-1710 again by first temperature transmitter; The conductivity sensor that is arranged in indigo staining bath is sent to the conductivity transmitter with the conductivity signal that records, and is transmitted signals to the analog quantity input end of integrated circuit board PCI-1710 again by the conductivity transmitter; In like manner, the 2nd pH electrode interior has the second electrode temperature sensor, be used for detecting in real time the temperature of sulfuration dye liquor sample, after temperature signal is sent to the second electrode transmitter, in the second electrode transmitter, measured pH value is carried out temperature compensation, then, the pH value after the second electrode transmitter will compensate is sent to the analog input end of integrated circuit board PCI-1710; The 2nd ORP electrode also is sent to the second electrode transmitter with detected electric potential signal; Second temperature sensor is sent to the temperature signal that records in second temperature transmitter, is passed the signal to the analog quantity input end of integrated circuit board PCI-1710 again by second temperature transmitter.

Above-mentioned steps 2. in, indigo or sulfuration dye liquor component is cleaned pipeline after detecting and finishing; After indigo component detected and finishes, after namely titration was finished, first ebullator was out of service, and No. two volume pump stops to inject titrant; System opens the waste liquid after No. 14 pneumatic valves discharging titration, and at this moment, No. 1, No. 8, No. 9 and No. 14 pneumatic valves are opened, and after discharging of waste liquid is clean, close No. 14 pneumatic valves and No. 1 pneumatic valve, and soft water cleans beginning; Open pneumatic valve by following order: No. 17 → No. 4 → No. 7 → No. 29, soft water enters pipeline, after cleaning a period of time, press following order closed portion pneumatic valve: No. 29 → No. 7 → No. 4 → No. 17, be full of soft water in the indigo dye liquor sample cylinder, then, first ebullator moves with maximal rate, constitute inner partial circulating between indigo dye liquor sample cylinder and first ebullator, the indigo dye liquor sample cylinder of afterburning cleaning is through behind the certain hour, first ebullator is out of service, open No. 14 pneumatic valves and No. 1 pneumatic valve, the back waste liquid is cleaned in discharging, closes No. 14 pneumatic valves and No. 1 pneumatic valve 1 then; So clean three times; When cleaning for the 4th time, open pneumatic valve by following order: No. 17 → No. 4 → No. 7 → No. 29, after soft water enters pipeline cleaning certain hour, close pneumatic valve by following order again: No. 29 → No. 7 → 8, No. 9 → number No. 4 → No. 17, soft water is retained in the indigo dye liquor sample cylinder, measure up to next time, to prevent the sensor drying; In like manner, after curable component detected and finishes, after namely titration was finished, second ebullator was out of service, and No. four volume pump stops to inject titrant; System opens the waste liquid after No. 13 pneumatic valves discharging titration, at this moment, opens with No. 13 pneumatic valves for No. 3, No. 10, No. 11, after discharging of waste liquid is clean, closes No. 13 pneumatic valves and No. 3 pneumatic valves, and soft water cleans and begins; Open pneumatic valve by following order: No. 17 → No. 2 → No. 12 → No. 26, soft water enters pipeline, after cleaning certain hour, press following order closed portion pneumatic valve: No. 26 → No. 12 → No. 2 → No. 17, then vulcanize in the dye liquor sample cylinder and be full of soft water, then, second ebullator moves with maximal rate, constitutes inner partial circulating between sulfuration dye liquor sample cylinder and second ebullator, the afterburning sulfuration dye liquor sample cylinder that cleans, through behind the certain hour, second ebullator is out of service, opens No. 13 pneumatic valves and No. 3 pneumatic valves, will clean the back discharging of waste liquid and fall, then, close No. 13 pneumatic valves and No. 3 pneumatic valves; So clean three times; When cleaning for the 4th time, open pneumatic valve by following order: No. 17 → No. 2 → No. 12 → No. 26, after soft water enters pipeline cleaning certain hour, close solenoid valve by following order again: No. 26 → No. 12 → 10, No. 11 → No. 2 → No. 17, soft water is retained in the sulfuration dye liquor sample cylinder, measure up to next time, to prevent the sensor drying.

Above-mentioned steps 2. in, as required, can carry out hot water, acetic acid and drift ice cleans to pipeline.Before the cleaning, system is in the holding state that pneumatic valve complete shut-down, indigo and sulfuration dye liquor sample cylinder are full of soft water; The cleaning of indigo on-line measuring device: open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit the soft water in the indigo dye liquor sample cylinder, after the emptying, close No. 14 pneumatic valves and No. 1 pneumatic valve; Open pneumatic valve by following order: No. 18 → No. 4 → No. 7 → No. 25 and open first ebullator, carry out hot water and clean, first ebullator provides power for hot water cleans; After cleaning is finished, close first ebullator again and close pneumatic valve by following order: No. 25 → No. 7 → 8, No. 9 → No. 4 → No. 18; Acetic acid cleans identical with the drift ice cleaning process, system is in the holding state that pneumatic valve complete shut-down, indigo dye liquor sample cylinder are full of soft water, open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit the soft water in the indigo dye liquor sample cylinder, after the emptying, close No. 14 pneumatic valves and No. 1 pneumatic valve; Open and close corresponding pneumatic valve then and finish soft water or hot water cleaning, after finishing, be full of soft water or hot water in the indigo dye liquor sample cylinder, open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit half soft water or hot water, close pneumatic valve No. 14, open pneumatic valve No. 37; Open first ebullator, first ebullator is moved with maximal rate; Under the control of industrial control computer, acetic acid injects acetic acid or drift ice by No. six volume pumps to indigo dye liquor sample cylinder by No. five volume pumps or drift ice; After cleaning is finished, close pneumatic valve No. 37, open pneumatic valve No. 14, by indigo discharged waste liquid; The cleaning of sulfuration on-line measuring device: in pneumatic valve complete shut-down, sulfuration dye liquor sample cylinder, be full of under the state of soft water, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit the soft water in the sulfuration dye liquor sample cylinder, after the emptying, close No. 13 pneumatic valves and No. 3 pneumatic valves; Open pneumatic valve by following order: No. 18 → No. 2 → No. 12 → No. 22, carry out hot water and clean, open second ebullator, for cleaning, hot water provides power; After cleaning is finished, close second ebullator, close pneumatic valve by following order again: No. 22 → No. 12 → 10, No. 11 → No. 2 → No. 18; Acetic acid cleans identical with the drift ice cleaning process, system is in the pneumatic valve complete shut-down, vulcanizes the holding state that the dye liquor sample cylinder is full of soft water, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit the soft water in the sulfuration dye liquor sample cylinder, after the emptying, close No. 13 pneumatic valves and No. 3 pneumatic valves; Open and close corresponding pneumatic valve then and finish soft water or hot water cleaning, after finishing, be full of soft water or hot water in the sulfuration dye liquor sample cylinder, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit half soft water or hot water, close pneumatic valve No. 13, open pneumatic valve No. 36; Open second ebullator, second ebullator is moved with maximal rate; Under the control of industrial control computer, acetic acid injects acetic acid or drift ice by No. six volume pumps to sample cylinder by No. five volume pumps or drift ice; After cleaning is finished, close pneumatic valve No. 36, open pneumatic valve No. 13, by sulfuration discharge pipe discharging waste liquid; Inject soft water indigo more at last or sulfuration dye liquor sample cylinder, enter holding state.

Above-mentioned steps 2. in, be effectively to guarantee the accuracy of measurement result, system will demarcate first, second pH electrode and first, second ORP electrode after operation a period of time; Volumetric solution is the standard solution of pH=4 or pH=7 or pH=10; Standard solution with pH=7 is example, the process of demarcating a pH electrode and an ORP electrode is: finish in cleaning, pneumatic valve contract fully and indigo dye liquor sample cylinder are full of under the soft water state, open 8, No. 9 → No. 14 → No. 1 → No. 7 → No. 28 → No. 33, soft water in indigo dye liquor sample cylinder and the demarcation cylinder is emitted, close whole pneumatic valves then; Open pneumatic valve by following order again: No. 19 → No. 4 → 8, No. 9 → No. 7 → No. 28 → No. 32 and first ebullator, first ebullator provides power for demarcating operation, at this moment, standard solution is full of demarcates cylinder and indigo dye liquor sample cylinder, industrial control computer is benchmark with the data that the 3rd pH electrode and the 3rd ORP electrode in the demarcation cylinder record, by with indigo dye liquor sample cylinder in the data that record of a pH electrode and an ORP electrode compare, calibration error is demarcated a pH electrode and an ORP electrode in the indigo dye liquor sample cylinder; After finishing demarcation, pipe blow-through injects demarcation cylinder and indigo dye liquor sample cylinder with soft water; The process of demarcating the 2nd pH electrode and the 2nd ORP electrode is: finish in cleaning, pneumatic valve contract fully and sulfuration dye liquor sample cylinder are full of under the soft water state, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3 → No. 12 → No. 27 → No. 33, soft water in sulfuration dye liquor sample cylinder and the demarcation cylinder is emitted, close whole pneumatic valves then; Open pneumatic valve by following order again: No. 19 → No. 2 → 10, No. 11 → No. 12 → No. 27 → No. 32 and second ebullator, second ebullator provides power for demarcating operation, at this moment, standard solution is full of demarcates cylinder and sulfuration dye liquor sample cylinder, industrial control computer is benchmark with the data that the 3rd pH electrode and the 3rd ORP electrode in the demarcation cylinder record, by with sulfuration dye liquor sample cylinder in the data that record of the 2nd pH electrode and the 2nd ORP electrode compare, calibration error is demarcated the 2nd pH electrode and the 2nd ORP electrode in the sulfuration dye liquor sample cylinder; After finishing demarcation, pipe blow-through injects demarcation cylinder and sulfuration dye liquor sample cylinder with soft water.

Above-mentioned steps 2. in, whole dye liquor component testing process can be finished under the control of industrial control computer automatically, also can finish by manually manually controlling computing machine according to the operation steps of whole dye liquor component testing process; When any pipe passage was set up, pneumatic valve was opened to follow and is left the principle that drives into behind the mouth mouthful earlier, and the pneumatic valve closure will be followed and close the principle that outlet is closed in import more earlier.Do like this is in order to prevent the phenomenon of the excessive damage equipment of pressure in the pipeline.

The present invention has following useful technique effect:

The total technical conceive of the present invention is: real-time online is gathered the indigo or sulfuration dye liquor sample in the overflow dyeing machine staining bath, adopt industrial control computer to be the control core, utilize the online timing of potentiometric titration method to detect the concentration of respective components in the dye liquor, online pH value and the temperature value that detects each dye liquor immediately also, after detection is finished, carry out waste liquid eliminating and pipeline and clean.Also can as required the detecting electrode (pH electrode, ORP electrode) in indigo or the sulfuration dye liquor sample cylinder be demarcated, with the accuracy of assurance measurement data, thus the dyeing quality of assurance dyed fabric.

(1) the present invention has realized the online automatic detection to the dye liquor component, and whole testing process is carried out under the control of industrial control computer, thereby the composition that can make dye liquor is comparatively stable and the pencil overflow dyeing machine is reliably guaranteed the dyeing quality of yarn fabric.

(2) the present invention has realized the online automatic detection to the dye liquor component, and operator's labour intensity is reduced.

(3) the present invention can realize the detecting electrode in the dye liquor on-line measuring device is cleaned and demarcates, and is conducive to prolong the serviceable life of electrode and guarantee the accurate of test result.

Description of drawings

The invention will be further described below in conjunction with accompanying drawing and embodiment:

The schematic block diagram of the on-line detecting system that Fig. 1 adopts when overflow dyeing machine uses for the present invention.

Fig. 2 is the electrical schematic diagram of the on-line detecting system in Fig. 1 mode.

Fig. 3 is the pipe-line layout principle schematic of the on-line detecting system in Fig. 1 mode.

Embodiment

Referring to Fig. 1, a kind of dye liquor component online test method of the pencil overflow dyeing machine based on integrated circuit board comprises the steps:

1. on-line detecting system is set, and topworks and checkout equipment that this system comprises industrial control computer 1 and is controlled by industrial control computer carry out exchanges data by integrated circuit board 2 between them, and integrated circuit board 2 is selected integrated circuit board PCI-1710 and PCI-1753 for use.Wherein integrated circuit board PCI-1710 has 16 tunnel single-ended analog quantity inputs, the output of 2 tunnel analog quantitys, the input of 16 road digital quantities and the output of 16 road digital quantities, and integrated circuit board PCI-1753 has 96 road digital quantity I/O; Industrial control computer only is connected with integrated circuit board, by integrated circuit board acquisition testing data and control topworks; Checkout equipment comprises pH electrode, ORP electrode and transmitter, temperature sensor and the temperature transmitter in indigo dye liquor on-line measuring device and the sulfuration dye liquor on-line measuring device, conductivity sensor and the conductivity transmitter in the indigo dye liquor on-line measuring device; Topworks comprises volume pump, sampling pump, ebullator and frequency converter, solenoid valve and the pneumatic valve in indigo dye liquor on-line measuring device and the sulfuration dye liquor on-line measuring device.

Referring to Fig. 2, industrial control computer is the desk-top all-in-one of HP TouchSmart touch-screen that contains solid state hard disc, be connected with PCI-1753 with the data collecting plate card PCI-1710 that grinds China, integrated circuit board is inserted in the PCI slot of computing machine, all connect 1 cable PCI-10268 and 1 connection terminal ADAM-3968, namely 2 integrated circuit boards are introduced signal by 2 connection terminals.

Referring to Fig. 1 and Fig. 3, above-mentioned steps 1. in, indigo component on-line measuring device comprises: indigo dye liquor sample cylinder 3, a pH electrode 4 and an ORP electrode 5 and the first electrode transmitter 6, first temperature sensor 7 and first temperature transmitter 8, conductivity sensor 9 and conductivity transmitter 10, the first volume pump group 11, first sampling pump 12, first ebullator 13 and first frequency converter 14; The volumetric soiutions of indigo dye liquor is indigo spreading agent and indigo titrant; The one pH electrode and an ORP electrode are installed in the indigo dye liquor sample cylinder; The one pH electrode all is connected with the first electrode transmitter with an ORP electrode, first temperature sensor that is connected with first temperature transmitter places the connecting tube between first sampling pump and first ebullator, and the conductivity sensor that is connected with the conductivity transmitter places indigo staining bath 15; The above-mentioned first electrode transmitter, first temperature transmitter and conductivity transmitter are connected with integrated circuit board PCI-1710, and the first volume pump group is connected with integrated circuit board PCI-1753, and first ebullator is connected with integrated circuit board PCI-1710 by first frequency converter; Indigo spreading agent injects indigo dye liquor sample cylinder by the volume pump 1101 in the first volume pump group, and indigo titrant injects indigo dye liquor sample cylinder by No. two volume pumps 1102 in the first volume pump group; The curable component on-line measuring device comprises: sulfuration dye liquor sample cylinder 16, the 2nd pH electrode 17 and the 2nd ORP electrode 18 and the second electrode transmitter 19, second temperature sensor 20 and second temperature transmitter 21, the second volume pump group 22, second sampling pump 23, second ebullator 24 and second frequency converter 25; The sulfuration volumetric soiutions is sulfuration spreading agent and sulfuration titrant; The 2nd pH electrode and the 2nd ORP electrode are installed in the sulfuration dye liquor sample cylinder; The 2nd pH electrode all is connected with the second electrode transmitter with the 2nd ORP electrode, second temperature sensor that is connected with second temperature transmitter places the connecting tube between second sampling pump and second ebullator, and second sampling pump links to each other with sulfuration staining bath 26 by pipeline; The second electrode transmitter is connected with integrated circuit board PCI-1710 with second temperature transmitter, and the second volume pump group links to each other with integrated circuit board PCI-1753, and second ebullator links to each other with integrated circuit board PCI-1710 by second frequency converter; The sulfuration spreading agent injects sulfuration dye liquor sample cylinder by No. three volume pumps 2201 in the second volume pump group, and sulfuration titrant injects sulfuration dye liquor sample cylinder by No. four volume pumps 2202 in the second volume pump group; Above-mentioned demarcation cleaning device comprises demarcates cylinder 27, the 3rd pH electrode 28 and the 3rd ORP electrode 29 and third electrode transmitter 30, the 3rd volume pump group 31; The 3rd pH electrode all is connected with the third electrode transmitter with the 3rd ORP electrode, and the third electrode transmitter is connected with integrated circuit board PCI-1710, and the 3rd volume pump group is connected with integrated circuit board PCI-1753; Acetic acid injects indigo by No. five volume pumps 3101 in the 3rd volume pump group or sulfuration dye liquor sample cylinder, and drift ice injects indigo by No. six volume pumps 3102 in the 3rd volume pump group or sulfuration dye liquor sample cylinder.

Above-mentioned indigo dye liquor sample cylinder, sulfuration dye liquor sample cylinder and demarcation cylinder are the device of own processing and fabricating, and indigo dye liquor sample cylinder has identical structure and apparent size with sulfuration dye liquor sample cylinder.Be example with indigo dye liquor sample cylinder: have 7 interfaces and 2 installing ports, these 7 interfaces are respectively: 2 interfaces that are communicated with first ebullator, 2 interfaces that are communicated with volume pump and No. two volume pumps, 1 interface that is connected with atmosphere, 1 interface that is connected with nitrogen, 1 interface that is used for sampling; 2 installing ports are used for installing a pH electrode and an ORP electrode respectively.The difference of demarcating cylinder and indigo dye liquor sample cylinder is, demarcate cylinder and have only 5 interfaces and 2 installing ports, these 5 interfaces are respectively: the standard solution inlet of 1 pH=4, the standard solution inlet of 1 pH=7, the standard solution inlet of 1 pH=10,1 liquid outlet, 1 and trunk line connector; 2 installing ports are used for installing the 3rd pH electrode and the 3rd ORP electrode respectively.

Referring to Fig. 2 and Fig. 3, above-mentioned first, second, third pH electrode is same model electrode, model is MettlerToledo Inpro 4250/PT 100, and this electrode is the integral type electrode that contrast electrode and indicator electrode are packaged together and form, and this electrode contains temperature sensor pt100.First, second, third ORP electrode is same model electrode, and model is Pt4805-DXK-S8, and this electrode also is the integral type electrode that contrast electrode and indicator electrode are packaged together and form.First temperature sensor and second temperature sensor are the Pt100 thermal resistance.Above-mentioned electrode or temperature transmitter can be the transmitter of same model, and model is MettlerToledo M300, and MettlerToledo M300 instrument is the multiparameter transmitter, can show multiple parameter.M300 instrumentation voltage range is direct current 20V-30V, by DC power supply, and the normalized current signal of exportable 4-20mA.Conductivity transmitter model is Prominent D1C, and operating voltage is for exchanging 100V-240V, the normalized current signal of exportable 4-20mA.First temperature transmitter and second temperature transmitter are the ARTECH temperature transmitter.The one pH electrode is connected with the first electrode transmitter with an ORP electrode, and the 2nd pH electrode is connected with the second electrode transmitter with the 2nd ORP electrode, and the 3rd pH electrode is connected with the third electrode transmitter with the 3rd ORP electrode.The pH electrode sends pH value signal and the temperature signal that records to transmitter, transmitter carries out temperature compensation to the pH signal, pH value after will compensating then is sent to the analog quantity input end of integrated circuit board PCI-1710 with the standard signal of 4-20mA, after the ORP electrode was sent to transmitter with the electric potential signal that records, transmitter was sent to electric potential signal the analog quantity input end of integrated circuit board PCI-1710 again with the standard signal of 4-20mA.Conductivity sensor links to each other with the conductivity transmitter, the conductivity signal that conductivity electrode records and temperature signal are sent to the conductivity transmitter, the conductivity transmitter carries out temperature compensation to conductivity, and the conductivity after will compensating again is sent to the analog quantity input end of integrated circuit board PCI-1710 with the standard signal of 4-20mA.Temperature sensor 1 adopts twin wire to link to each other with temperature transmitter 1, temperature sensor 2 adopts twin wire to link to each other with temperature transmitter 2, the temperature signal that temperature sensor records is sent to temperature transmitter, and temperature transmitter is sent to its standard signal with 4-20mA the analog quantity input end of integrated circuit board PCI-1710 again.

Referring to seeing Fig. 2 and Fig. 3, above-mentioned frequency converter model is ABB ACS150, and this frequency converter can provide indicating fault, start and stop and the rotating speed of control ebullator.The ebullator model is ProMinent 0502 PVDF.First frequency converter links to each other with first ebullator, and second frequency converter links to each other with second ebullator.Frequency converter receives the control signal from integrated circuit board PCI-1710, start and stop and the rotating speed of control ebullator.Have i.e. volume pump to six volume pump of 6 volume pumps, the volume pump model is ProMinent Beta.Volume pump receives the control signal from integrated circuit board PCI-1753, and control signal realizes the control to volume pump after the 24VDC-5VDC conversion.Totally 38 of solenoid valves receive the control signal from integrated circuit board PCI-1753, the switch of control pneumatic valve.Above-mentioned pneumatic valve has 38, be respectively No. 1 pneumatic valve 32, No. 2 pneumatic valves 33, No. 3 pneumatic valves 34, mark by that analogy, until No. 38 pneumatic valves 69, each pneumatic valve solenoid valve corresponding with it is connected, all solenoid valves are connected with integrated circuit board PCI-1753, and pneumatic valve is by solenoid control, and solenoid valve is controlled by integrated circuit board; System can open different pipe path by the combination operation to different pneumatic valves, with volume pump and ebullator interoperation, realize whole system function: comprise the indigo or sulfuration dye liquor concentration of component of online detection, demarcate electrode or purging system in indigo or the sulfuration dye liquor sample cylinder.

When 2. overflow dyeing machine was in normal operating conditions, first sampling pump and second sampling pump were in running status all the time, and first sampling pump extracts dye liquor incessantly from indigo staining bath, and second sampling pump extracts dye liquor incessantly from the sulfuration staining bath.When total system is in when being full of the holding state of soft water in pneumatic valve complete shut-down, the indigo and sulfuration dye liquor sample cylinder, namely do not need to detect indigo and during sulfuration dye liquor component, the indigo dye liquor that first sampling pump extracts is sent back to indigo staining bath again, namely constitutes outer circulation between indigo staining bath and first sampling pump; The sulfuration dye liquor that second sampling pump extracts is sent back to the sulfuration staining bath again, namely vulcanizes between staining bath and second sampling pump to constitute outer circulation.

Above-mentioned steps 2. in, as required, can carry out hot water, acetic acid and drift ice cleans to pipeline.Before the cleaning, system is in the holding state that pneumatic valve complete shut-down, indigo and sulfuration dye liquor sample cylinder are full of soft water; The cleaning of indigo on-line measuring device: open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit the soft water in the indigo dye liquor sample cylinder, after the emptying, close No. 14 pneumatic valves and No. 1 pneumatic valve; Open pneumatic valve by following order: No. 18 → No. 4 → No. 7 → No. 25 and open first ebullator, carry out hot water and clean, first ebullator provides power for hot water cleans; After cleaning is finished, close first ebullator again and close pneumatic valve by following order: No. 25 → No. 7 → 8, No. 9 → No. 4 → No. 18; Acetic acid cleans identical with the drift ice cleaning process, system is in the holding state that pneumatic valve complete shut-down, indigo dye liquor sample cylinder are full of soft water, open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit the soft water in the indigo dye liquor sample cylinder, after the emptying, close No. 14 pneumatic valves and No. 1 pneumatic valve; Open and close corresponding pneumatic valve then and finish soft water or hot water cleaning, after finishing, be full of soft water or hot water in the indigo dye liquor sample cylinder, open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit half soft water or hot water, close pneumatic valve No. 14, open pneumatic valve No. 37; Open first ebullator, first ebullator is moved with maximal rate; Under the control of industrial control computer, acetic acid injects acetic acid or drift ice by No. six volume pumps to indigo dye liquor sample cylinder by No. five volume pumps or drift ice; After cleaning is finished, close pneumatic valve No. 37, open pneumatic valve No. 14, by indigo discharged waste liquid; The cleaning of sulfuration on-line measuring device: in pneumatic valve complete shut-down, sulfuration dye liquor sample cylinder, be full of under the state of soft water, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit the soft water in the sulfuration dye liquor sample cylinder, after the emptying, close No. 13 pneumatic valves and No. 3 pneumatic valves; Open solenoid valve by following order: No. 18 → No. 2 → No. 12 → No. 22, carry out hot water and clean, open second ebullator, for cleaning, hot water provides power; After cleaning is finished, close second ebullator, close pneumatic valve by following order again: No. 22 → No. 12 → 10, No. 11 → No. 2 → No. 18; Acetic acid cleans identical with the drift ice cleaning process, system is in the pneumatic valve complete shut-down, vulcanizes the holding state that the dye liquor sample cylinder is full of soft water, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit the soft water in the sulfuration dye liquor sample cylinder, after the emptying, close No. 13 pneumatic valves and No. 3 pneumatic valves; Open and close corresponding pneumatic valve then and finish soft water or hot water cleaning, after finishing, be full of soft water or hot water in the sulfuration dye liquor sample cylinder, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit half soft water or hot water, close pneumatic valve No. 13, open pneumatic valve No. 36; Open second ebullator, second ebullator is moved with maximal rate; Under the control of industrial control computer, acetic acid injects acetic acid or drift ice by No. six volume pumps to sulfuration dye liquor sample cylinder by No. five volume pumps or drift ice; After cleaning is finished, close pneumatic valve No. 36, open pneumatic valve No. 13, by sulfuration discharge pipe discharging waste liquid; Inject soft water indigo more at last or sulfuration dye liquor sample cylinder, enter holding state.

Claims

1. the pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board is characterized in that comprising the steps:

1. on-line detecting system is set, topworks and checkout equipment that this system comprises industrial control computer and is controlled by industrial control computer, carry out exchanges data by grinding magnificent integrated circuit board PCI-1710 and PCI-1753 between them, integrated circuit board PCI-1710 has 16 tunnel single-ended analog quantity inputs, the output of 2 tunnel analog quantitys, the input of 16 road digital quantities and the output of 16 road digital quantities, and integrated circuit board PCI-1753 has 96 road digital quantity I/O; Industrial control computer only is connected with integrated circuit board, by integrated circuit board acquisition testing data and control topworks; Checkout equipment comprises conductivity sensor and the conductivity transmitter in pH electrode in indigo dye liquor on-line measuring device and the sulfuration dye liquor on-line measuring device and ORP electrode and electrode transmitter, temperature sensor and temperature transmitter, the indigo dye liquor on-line measuring device, and demarcates pH electrode and ORP electrode and electrode transmitter in the cleaning device; Topworks comprises indigo dye liquor on-line measuring device and volume pump, sampling pump, ebullator and the frequency converter, solenoid valve and the pneumatic valve that vulcanize in the dye liquor on-line measuring device; When 2. overflow dyeing machine is in normal operating conditions, second sampling pump in first sampling pump in the indigo dye liquor on-line measuring device and the sulfuration dye liquor on-line measuring device is in running status all the time, first sampling pump extracts dye liquor incessantly from indigo staining bath, second sampling pump extracts dye liquor incessantly from the sulfuration staining bath; Indigo dye liquor component testing process is: when total system was in holding state, when namely not needing to detect indigo dye liquor component, the indigo dye liquor that first sampling pump extracts was sent back to indigo staining bath again, namely constitutes outer circulation between indigo staining bath and first sampling pump; When needs detect indigo dye liquor component, stop the outer circulation that constitutes between indigo staining bath and first sampling pump, the indigo dye liquor that first sampling pump extracts arrives indigo dye liquor sample cylinder through first ebullator, gets back to indigo staining bath through internal pipeline again, circulation in constituting, at this moment, indigo dye liquor sample cylinder is full of indigo dye liquor, through behind the certain hour, and circulation in stopping, rebuild the outer circulation between indigo staining bath and first sampling pump, indigo dye liquor component on-line measuring device begins sampling; After finishing sampling, the beginning titration, namely the indigo dye liquor sample of gathering is carried out redox titration, carrying out along with the redox titration process, ORP electrode detection in the indigo dye liquor component on-line measuring device to electric potential signal change, industrial control computer is drawn " titration consumption-current potential " coordinate diagram simultaneously; After finishing titration, industrial control computer adopts second order difference quotient method to calculate 2 potential jump points that an ORP electrode detection arrives, and calculates the concentration of sodium hydrosulfite in the dye liquor according to oxygenant addition, the concentration of oxygenant and the volumescope of indigo dye liquor sample that the 1st potential jump point is corresponding; Calculate concentration indigo in the dye liquor sample according to oxygenant addition, the concentration of oxygenant and the volumescope of indigo dye liquor sample that the 2nd potential jump point is corresponding; Simultaneously, the pH value of the indigo dye liquor sample of a pH electrode detection of indigo dye liquor component on-line measuring device, first temperature sensor detects the temperature of ducted indigo dye liquor, and conductivity sensor detects the conductivity of the indigo dye liquor in the indigo staining bath; After detection was finished, system was cleaned pipeline, and system enters holding state then, waited for next time and detecting; As required, system also can carry out hot water, acetic acid and drift ice to pipeline to be cleaned, and the pH electrode in the indigo dye liquor sample cylinder and an ORP electrode are demarcated; Sulfide dye liquor component testing process is: when total system was in holding state, when namely not needing to detect sulfuration dye liquor component, the sulfuration dye liquor that second sampling pump extracts was sent back to the sulfuration staining bath again, namely vulcanizes between staining bath and second sampling pump to constitute outer circulation; When needs detect sulfuration dye liquor component, stop vulcanizing the outer circulation that constitutes between staining bath and second sampling pump, the sulfuration dye liquor that second sampling pump extracts arrives sulfuration dye liquor sample cylinder through second ebullator, gets back to the sulfuration staining bath through internal pipeline again, circulation in constituting, at this moment, sulfuration dye liquor sample cylinder is full of the sulfuration dye liquor, through behind the certain hour, and circulation in stopping, rebuild the outer circulation between sulfuration staining bath and second sampling pump, sulfuration dye liquor component on-line measuring device begins sampling; After finishing sampling, the beginning titration, namely the sulfuration dye liquor sample of gathering is carried out redox titration, carrying out along with the redox titration process, the online detected electric potential signal of the 2nd ORP electrode of sulfuration dye liquor component on-line measuring device changes, industrial control computer is drawn " titration consumption-current potential " coordinate diagram simultaneously, after titration is finished, industrial control computer adopts second order difference quotient method to calculate the electric potential signal catastrophe point that the 2nd ORP electrode detection arrives, and according to the addition of oxygenant this moment, the volumescope of the concentration of oxygenant and sulfuration dye liquor sample is calculated the concentration of sulfide in the dye liquor; Simultaneously, the pH value of the 2nd pH electrode detection sulfuration dye liquor sample of sulfuration dye liquor component on-line measuring device, second temperature sensor detects the temperature of ducted sulfuration dye liquor; After detection was finished, system was cleaned pipeline, and system enters holding state then, waited for next time and detecting; As required, system also can carry out hot water, acetic acid and drift ice to pipeline to be cleaned, and the 2nd pH electrode and the 2nd ORP electrode in the sulfuration dye liquor sample cylinder are demarcated;

Described step 1. in, indigo component on-line measuring device comprises: indigo dye liquor sample cylinder, a pH electrode and an ORP electrode and the first electrode transmitter, first temperature sensor and first temperature transmitter, conductivity sensor and conductivity transmitter, the first volume pump group, first sampling pump, first ebullator and first frequency converter; The volumetric soiutions of indigo dye liquor is indigo spreading agent and indigo titrant; The one pH electrode and an ORP electrode are installed in the indigo dye liquor sample cylinder; The one pH electrode all is connected with the first electrode transmitter with an ORP electrode, first temperature sensor that is connected with first temperature transmitter places the connecting tube between first sampling pump and first ebullator, and the conductivity sensor that is connected with the conductivity transmitter places indigo staining bath; The above-mentioned first electrode transmitter, first temperature transmitter and conductivity transmitter are connected with integrated circuit board PCI-1710, and the first volume pump group is connected with integrated circuit board PCI-1753, and first ebullator is connected with integrated circuit board PCI-1710 by first frequency converter; Indigo spreading agent injects indigo dye liquor sample cylinder by a volume pump in the first volume pump group, and indigo titrant injects indigo dye liquor sample cylinder by No. two volume pumps in the first volume pump group; The curable component on-line measuring device comprises: sulfuration dye liquor sample cylinder, the 2nd pH electrode and the 2nd ORP electrode and the second electrode transmitter, second temperature sensor and second temperature transmitter, the second volume pump group, second sampling pump, second ebullator and second frequency converter; The sulfuration volumetric soiutions is sulfuration spreading agent and sulfuration titrant; The 2nd pH electrode and the 2nd ORP electrode are installed in the sulfuration dye liquor sample cylinder; The 2nd pH electrode all is connected with the second electrode transmitter with the 2nd ORP electrode, and second temperature sensor that is connected with second temperature transmitter places the connecting tube between second sampling pump and second ebullator; The second electrode transmitter is connected with integrated circuit board PCI-1710 with second temperature transmitter, and the second volume pump group is connected with integrated circuit board PCI-1753, and second ebullator is connected with integrated circuit board PCI-1710 by second frequency converter; The sulfuration spreading agent injects sulfuration dye liquor sample cylinder by No. three volume pumps in the second volume pump group, and sulfuration titrant injects sulfuration dye liquor sample cylinder by No. four volume pumps in the second volume pump group; Above-mentioned demarcation cleaning device comprises demarcates cylinder, the 3rd pH electrode and the 3rd ORP electrode and third electrode transmitter, the 3rd volume pump group; The 3rd pH electrode all is connected with the third electrode transmitter with the 3rd ORP electrode, and the third electrode transmitter is connected with integrated circuit board PCI-1710, and the 3rd volume pump group is connected with integrated circuit board-1753; Acetic acid injects indigo by No. five volume pumps in the 3rd volume pump group or sulfuration dye liquor sample cylinder, drift ice injects indigo by No. six volume pumps in the 3rd volume pump group or sulfuration dye liquor sample cylinder, above-mentioned pneumatic valve has 38, be respectively pneumatic valve to 38 pneumatic valve No. 1, each pneumatic valve solenoid valve corresponding with it is connected, all solenoid valves are connected with integrated circuit board PCI-1753, and pneumatic valve is by solenoid control; System can open different pipe path by the combination operation to different pneumatic valves, with volume pump and ebullator interoperation, realize whole system function: comprise the indigo or sulfuration dye liquor concentration of component of online detection, demarcate electrode or purging system in indigo or the sulfuration dye liquor sample cylinder.

2. a kind of pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board according to claim 1, it is characterized in that: above-mentioned steps 2. in, when system is full of soft water from pneumatic valve complete shut-down and indigo dye liquor sample cylinder holding state enters indigo dye liquor component testing state, open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, discharge the soft water in the indigo dye liquor sample cylinder, after the soft water discharging is clean, close whole pneumatic valves; Open pneumatic valve by following order then: No. 15 → No. 4 → 8, No. 9 → No. 7 → No. 24, stop the outer circulation between indigo staining bath and first sampling pump, set up the interior circulation between indigo staining bath and the internal system pipeline; After circulation a period of time, press following order closed portion pneumatic valve: No. 24 → No. 7 → No. 4 → No. 15, circulation in stopping rebulids the outer circulation between indigo staining bath and first sampling pump, and system begins sampling; At this moment, be full of indigo dye liquor in the indigo dye liquor sample cylinder, opened pneumatic valve by following order: No. 1 → No. 35 → No. 5 → No. 38, take quantitative indigo dye liquor sample, get rid of unnecessary dye liquor; After wherein No. 35 pneumatic valves are opened, namely feed nitrogen to indigo dye liquor sample cylinder, purpose is the air that drains in the indigo dye liquor sample cylinder, prevents that indigo dye liquor sample is oxidized; The indigo dye liquor sample of gathering is arranged in pipeline and first ebullator at 8, No. 9 pneumatic valve places, and subsequently, press following order closed portion pneumatic valve: No. 38 → No. 5 → No. 35, sampling is finished; For preventing that titration process from producing bubble and causing indigo dye liquor sample cylinder to be difficult to clean and make a pH electrode and an ORP electrode touch indigo dye liquor sample, under the control of industrial control computer, a volume pump begins to inject spreading agent in indigo dye liquor sample cylinder, simultaneously, first ebullator begins with slow speed operation, make indigo dye liquor sample between indigo dye liquor sample cylinder and first ebullator, constitute inner partial circulating, be convenient to indigo dye liquor sample and fully mix with indigo spreading agent; System begins titration then, injects titrant by No. two volume pumps in indigo dye liquor sample cylinder, and at this moment, first ebullator still with slow speed operation, is convenient to fully carrying out of redox reaction; In the titration process, the one pH electrode and an ORP electrode detection to signal all be sent to the first electrode transmitter, signal is sent to the analog quantity input port of integrated circuit board PCI-1710 after the first electrode transmitter is handled, integrated circuit board PCI-1710 is that digital signal is sent to industrial control computer afterwards with these analog signal conversion, industrial control computer is drawn " titration consumption---current potential " coordinate diagram according to the variation relation of titrant consumption and current potential; After finishing titration, industrial control computer adopts second order difference quotient method to calculate 2 electric potential signal catastrophe points, and calculates the concentration of sodium hydrosulfite in the dye liquor according to the 1st potential jump point corresponding oxygenant addition, the concentration of oxygenant and the volumescope of indigo dye liquor sample; Calculate concentration indigo in the dye liquor sample according to the 2nd potential jump point corresponding oxygenant addition, the concentration of oxygenant and the volumescope of indigo dye liquor sample again; In like manner, system is full of soft water from pneumatic valve complete shut-down and sulfuration dye liquor sample cylinder holding state enters when vulcanizing dye liquor component testing state, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, soft water in the discharging sulfuration dye liquor sample cylinder, after discharging is clean, close whole pneumatic valves; Open pneumatic valve by following order again: No. 16 → No. 2 → 10, No. 11 → No. 12 → No. 23, stop the outer circulation between sulfuration staining bath and second sampling pump, set up the interior circulation between sulfuration staining bath and the internal system pipeline; After circulation a period of time, press following order closed portion pneumatic valve: No. 23 → No. 12 → No. 2 → No. 16, circulation in stopping rebulids the outer circulation between sulfuration staining bath and second sampling pump, and system begins to sample; At this moment, be full of the sulfuration dye liquor in the sulfuration dye liquor sample cylinder, opened pneumatic valve by following order: No. 3 → No. 34 → No. 6 → No. 38, take quantitatively to vulcanize the dye liquor sample, get rid of unnecessary dye liquor; After wherein No. 34 pneumatic valves are opened, namely feed nitrogen to sulfuration dye liquor sample cylinder, purpose is the air that drains in the sulfuration dye liquor sample cylinder, and it is oxidized to prevent from vulcanizing the dye liquor sample; The sulfuration dye liquor sample of gathering is arranged in pipeline and second ebullator at 10, No. 11 pneumatic valve places, then, presses following order closed portion pneumatic valve: No. 38 → No. 6 → No. 34; After sampling is finished, for preventing that titration process from producing bubble and causing sulfuration dye liquor sample cylinder to be difficult to cleaning and the 2nd pH electrode and the 2nd ORP electrode are touched vulcanize the dye liquor sample, under the control of industrial control computer, No. three volume pumps begin to inject spreading agent in sulfuration dye liquor sample cylinder, simultaneously, second ebullator begins with slow speed operation, make sulfuration dye liquor sample between sulfuration dye liquor sample cylinder and second ebullator, constitute inner partial circulating, be convenient to vulcanize the dye liquor sample and fully mix with the sulfuration spreading agent; System begins titration then, injects titrant by No. four volume pumps in sulfuration dye liquor sample cylinder, and at this moment, second ebullator still with slow speed operation, is convenient to fully carrying out of redox reaction; In the titration process, the 2nd pH electrode and the 2nd ORP electrode detection to signal all be sent to the second electrode transmitter, signal is sent to the analog quantity input port of integrated circuit board PCI-1710 after the second electrode transmitter is handled, integrated circuit board PCI-1710 is that digital signal is sent to industrial control computer afterwards with these analog signal conversion, industrial control computer is drawn " titration consumption---current potential " coordinate diagram according to the variation relation of titrant consumption and current potential; After titration was finished, industrial control computer adopted second order difference quotient method to calculate the electric potential signal catastrophe point, and calculated the concentration of sulfide in the sulfuration dye liquor according to the corresponding oxygenant addition of potential jump point, oxidant concentration and sulfuration dye liquor sample volume.

3. a kind of pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board according to claim 2, it is characterized in that: above-mentioned steps 1. in, when system is in running order, the one pH electrode interior has the first electrode temperature sensor, be used for detecting in real time the temperature of indigo dye liquor sample, after temperature signal is sent to the first electrode transmitter, in the first electrode transmitter, measured pH value is carried out temperature compensation, then, the pH value after the first electrode transmitter will compensate is sent to the analog input end of integrated circuit board PCI-1710; The one ORP electrode also is sent to the first electrode transmitter with detected electric potential signal; First temperature sensor is sent to the temperature signal that records in first temperature transmitter, is passed the signal to the analog quantity input end of integrated circuit board PCI-1710 again by first temperature transmitter; The conductivity sensor that is arranged in indigo staining bath is sent to the conductivity transmitter with the conductivity signal that records, and is transmitted signals to the analog quantity input end of integrated circuit board PCI-1710 again by the conductivity transmitter; In like manner, the 2nd pH electrode interior has the second electrode temperature sensor, be used for detecting in real time the temperature of sulfuration dye liquor sample, after temperature signal is sent to the second electrode transmitter, in the second electrode transmitter, measured pH value is carried out temperature compensation, then, the pH value after the second electrode transmitter will compensate is sent to the analog input end of integrated circuit board PCI-1710; The 2nd ORP electrode also is sent to the second electrode transmitter with detected electric potential signal; Second temperature sensor is sent to the temperature signal that records in second temperature transmitter, is passed the signal to the analog quantity input end of integrated circuit board PCI-1710 again by second temperature transmitter.

4. a kind of pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board according to claim 3 is characterized in that: above-mentioned steps 2. in, indigo or sulfuration dye liquor component is cleaned pipeline after detecting and finishing; After indigo component detected and finishes, after namely titration was finished, first ebullator was out of service, and No. two volume pump stops to inject titrant; System opens the waste liquid after No. 14 pneumatic valves discharging titration, and at this moment, No. 1, No. 8, No. 9 and No. 14 pneumatic valves are opened, and after discharging of waste liquid is clean, close No. 14 pneumatic valves and No. 1 pneumatic valve, and soft water cleans beginning; Open pneumatic valve by following order: No. 17 → No. 4 → No. 7 → No. 29, soft water enters pipeline, after cleaning a period of time, press following order closed portion pneumatic valve: No. 29 → No. 7 → No. 4 → No. 17, be full of soft water in the indigo dye liquor sample cylinder, then, first ebullator moves with maximal rate, constitute inner partial circulating between indigo dye liquor sample cylinder and first ebullator, the indigo dye liquor sample cylinder of afterburning cleaning is through behind the certain hour, first ebullator is out of service, open No. 14 pneumatic valves and No. 1 pneumatic valve, the back waste liquid is cleaned in discharging, closes No. 14 pneumatic valves and No. 1 pneumatic valve 1 then; So clean three times; When cleaning for the 4th time, open pneumatic valve by following order: No. 17 → No. 4 → No. 7 → No. 29, after soft water enters pipeline cleaning certain hour, close pneumatic valve by following order again: No. 29 → No. 7 → 8, No. 9 → number No. 4 → No. 17, soft water is retained in the indigo dye liquor sample cylinder, measure up to next time, to prevent the sensor drying; In like manner, after curable component detected and finishes, after namely titration was finished, second ebullator was out of service, and No. four volume pump stops to inject titrant; System opens the waste liquid after No. 13 pneumatic valves discharging titration, at this moment, opens with No. 13 pneumatic valves for No. 3, No. 10, No. 11, after discharging of waste liquid is clean, closes No. 13 pneumatic valves and No. 3 pneumatic valves, and soft water cleans and begins; Open pneumatic valve by following order: No. 17 → No. 2 → No. 12 → No. 26, soft water enters pipeline, after cleaning certain hour, press following order closed portion pneumatic valve: No. 26 → No. 12 → No. 2 → No. 17, then vulcanize in the dye liquor sample cylinder and be full of soft water, then, second ebullator moves with maximal rate, constitutes inner partial circulating between sulfuration dye liquor sample cylinder and second ebullator, the afterburning sulfuration dye liquor sample cylinder that cleans, through behind the certain hour, second ebullator is out of service, opens No. 13 pneumatic valves and No. 3 pneumatic valves, will clean the back discharging of waste liquid and fall, then, close No. 13 pneumatic valves and No. 3 pneumatic valves; So clean three times; When cleaning for the 4th time, open pneumatic valve by following order: No. 17 → No. 2 → No. 12 → No. 26, after soft water enters pipeline cleaning certain hour, close solenoid valve by following order again: No. 26 → No. 12 → 10, No. 11 → No. 2 → No. 17, soft water is retained in the sulfuration dye liquor sample cylinder, measure up to next time, to prevent the sensor drying.

5. a kind of pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board according to claim 4 is characterized in that: above-mentioned steps 2. in, as required, system also can carry out hot water, acetic acid and drift ice to pipeline and clean; Before the cleaning, system is in the holding state that pneumatic valve complete shut-down, indigo and sulfuration dye liquor sample cylinder are full of soft water; The cleaning of indigo on-line measuring device: open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit the soft water in the indigo dye liquor sample cylinder, after the emptying, close No. 14 pneumatic valves and No. 1 pneumatic valve; Open pneumatic valve by following order: No. 18 → No. 4 → No. 7 → No. 25 and open first ebullator, carry out hot water and clean, first ebullator provides power for hot water cleans; After cleaning is finished, close first ebullator again and close pneumatic valve by following order: No. 25 → No. 7 → 8, No. 9 → No. 4 → No. 18; Acetic acid cleans identical with the drift ice cleaning process, system is in the holding state that pneumatic valve complete shut-down, indigo dye liquor sample cylinder are full of soft water, open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit the soft water in the indigo dye liquor sample cylinder, after the emptying, close No. 14 pneumatic valves and No. 1 pneumatic valve; Open and close corresponding pneumatic valve then and finish soft water or hot water cleaning, after finishing, be full of soft water or hot water in the indigo dye liquor sample cylinder, open pneumatic valve by following order: 8, No. 9 → No. 14 → No. 1, emit half soft water or hot water, close pneumatic valve No. 14, open pneumatic valve No. 37; Open first ebullator, first ebullator is moved with maximal rate; Under the control of industrial control computer, acetic acid injects acetic acid or drift ice by No. six volume pumps to indigo dye liquor sample cylinder by No. five volume pumps or drift ice; After cleaning is finished, close pneumatic valve No. 37, open pneumatic valve No. 14, by indigo discharged waste liquid; The cleaning of sulfuration on-line measuring device: in pneumatic valve complete shut-down, sulfuration dye liquor sample cylinder, be full of under the state of soft water, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit the soft water in the sulfuration dye liquor sample cylinder, after the emptying, close No. 13 pneumatic valves and No. 3 pneumatic valves; Open solenoid valve by following order: No. 18 → No. 2 → No. 12 → No. 22, carry out hot water and clean, open second ebullator, for cleaning, hot water provides power; After cleaning is finished, close second ebullator, close pneumatic valve by following order again: No. 22 → No. 12 → 10, No. 11 → No. 2 → No. 18; Acetic acid cleans identical with the drift ice cleaning process, system is in the pneumatic valve complete shut-down, vulcanizes the holding state that the dye liquor sample cylinder is full of soft water, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit the soft water in the sulfuration dye liquor sample cylinder, after the emptying, close No. 13 pneumatic valves and No. 3 pneumatic valves; Open and close corresponding pneumatic valve then and finish soft water or hot water cleaning, after finishing, be full of soft water or hot water in the sulfuration dye liquor sample cylinder, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3, emit half soft water or hot water, close pneumatic valve No. 13, open pneumatic valve No. 36; Open second ebullator, second ebullator is moved with maximal rate; Under the control of industrial control computer, acetic acid injects acetic acid or drift ice by No. six volume pumps to sample cylinder by No. five volume pumps or drift ice; After cleaning is finished, close pneumatic valve No. 36, open pneumatic valve No. 13, by sulfuration discharge pipe discharging waste liquid; Inject soft water indigo more at last or sulfuration dye liquor sample cylinder, enter holding state.

6. a kind of pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board according to claim 5, it is characterized in that: above-mentioned steps 2. in, for effectively guaranteeing the accuracy of measurement result, system will demarcate first, second pH electrode and first, second ORP electrode after operation a period of time; Volumetric solution is the standard solution of pH=4 or pH=7 or pH=10; Standard solution with pH=7 is example, the process of demarcating a pH electrode and an ORP electrode is: finish in cleaning, pneumatic valve contract fully and indigo dye liquor sample cylinder are full of under the soft water state, open 8, No. 9 → No. 14 → No. 1 → No. 7 → No. 28 → No. 33, soft water in indigo dye liquor sample cylinder and the demarcation cylinder is emitted, close whole pneumatic valves then; Open pneumatic valve by following order again: No. 19 → No. 4 → 8, No. 9 → No. 7 → No. 28 → No. 32 and first ebullator, first ebullator provides power for demarcating operation, at this moment, standard solution is full of demarcates cylinder and indigo dye liquor sample cylinder, industrial control computer is benchmark with the data that the 3rd pH electrode and the 3rd ORP electrode in the demarcation cylinder record, by with indigo dye liquor sample cylinder in the data that record of a pH electrode and an ORP electrode compare, calibration error is demarcated a pH electrode and an ORP electrode in the indigo dye liquor sample cylinder; After finishing demarcation, pipe blow-through injects demarcation cylinder and indigo dye liquor sample cylinder with soft water; The process of demarcating the 2nd pH electrode and the 2nd ORP electrode is: finish in cleaning, pneumatic valve contract fully and sulfuration dye liquor sample cylinder are full of under the soft water state, open pneumatic valve by following order: 10, No. 11 → No. 13 → No. 3 → No. 12 → No. 27 → No. 33, soft water in sulfuration dye liquor sample cylinder and the demarcation cylinder is emitted, close whole pneumatic valves then; Open pneumatic valve by following order again: No. 19 → No. 2 → 10, No. 11 → No. 12 → No. 27 → No. 32 and second ebullator, second ebullator provides power for demarcating operation, at this moment, standard solution is full of demarcates cylinder and sulfuration dye liquor sample cylinder, industrial control computer is benchmark with the data that the 3rd pH electrode and the 3rd ORP electrode in the demarcation cylinder record, by with sulfuration dye liquor sample cylinder in the data that record of the 2nd pH electrode and the 2nd ORP electrode compare, calibration error is demarcated the 2nd pH electrode and the 2nd ORP electrode in the sulfuration dye liquor sample cylinder; After finishing demarcation, pipe blow-through injects demarcation cylinder and sulfuration dye liquor sample cylinder with soft water.

7. a kind of pencil overflow dyeing machine dye liquor component online test method based on integrated circuit board according to claim 6, it is characterized in that: described step 2. in, whole dye liquor component testing process can be finished under the control of industrial control computer automatically, also can finish by manually manually controlling according to the operation steps of whole dye liquor component testing process; When any pipe passage was set up, pneumatic valve was opened to follow and is left the principle that drives into behind the mouth mouthful earlier, and the pneumatic valve closure will be followed and close the principle that outlet is closed in import more earlier.