CN109144122A - The device of on-line automatic prosecution acid base concentration in etch assembly line - Google Patents
The device of on-line automatic prosecution acid base concentration in etch assembly line Download PDFInfo
- Publication number
- CN109144122A CN109144122A CN201810694883.9A CN201810694883A CN109144122A CN 109144122 A CN109144122 A CN 109144122A CN 201810694883 A CN201810694883 A CN 201810694883A CN 109144122 A CN109144122 A CN 109144122A
- Authority
- CN
- China
- Prior art keywords
- pump
- acid
- line
- prosecution
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Ecology (AREA)
- Biochemistry (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The present invention discloses a kind of device of on-line automatic prosecution acid base concentration in etch assembly line, including nitric acid slot, hydrochloric acid trough, lye tank (vat) and independent self-circulating pump and corresponding metering pump；PLC control system, automatic cycle prosecution acid base concentration analytical equipment, the device includes distilled water pump, PH buffer solution pump, NaOH standard liquid pump, concentrated base liquid pump, positive displacement pump, reaction cup, quantitative loop and quantity tube, when detection information is lower than setting value, setting value is adjusted to by the high alkali liquid that concentrated base liquid pump extracts, and is transmitted to PLC control system；The operating mode of on-line automatic prosecution acid base concentration analytical equipment is arranged in PLC control system, and automatically controls corresponding metering pump addition concentrated acid liquid or high alkali liquid；When selecting test object for nitric acid slot, hydrochloric acid trough or lye tank (vat), when being cleaned by distilled water pump to quantitative loop, reaction cup and corresponding pipeline, and selecting lye tank (vat), every time after cleaning or detection, passes through positive displacement pump and empty raffinate in reaction cup.
Description
Technical field
The present invention relates to the devices of prosecution acid base concentration on-line automatic in etch assembly line, belong to wind-powered electricity generation large gearbox
Physico-chemical tests and quality verification field, the etch suitable for the tempering of gear grinding rear surface are examined.
Technical background
Gear member in wind turbine gearbox is if there is grinding burn, since the microscopic structure at grinding burn is different, and
The surface quality of workpiece must be made to substantially reduce, it is therefore necessary to after final heat treatment with the presence of biggish residual stress
It tests on grinding surface.It is the effective method for examining grinding burn, general international standard ISO that (pickling) is examined in etch
14104(corresponds to national standard GB/T 17879).Wherein acid base concentration has certain range and time requirement.For nitric acid and hydrochloric acid
Concentration control is usually mostly manually to send after line detects acid solution combined density or on-line period using densitometer to laboratory to examine
Acid solution density or mass fraction are surveyed, because there was only volume ratio ratio requirement (- 65% concentrated nitric acid of aqueous solution of nitric acid and water in standard
With volume ratio 1.5%-5% preparation, -36% concentrated hydrochloric acid of aqueous hydrochloric acid solution and water are with volume ratio 2%-6% preparation).For concentration of lye control
System, usually mostly artificial on-line checking pH value, because there is pH value control to require (it is required that pH value >=10) in standard.Above-mentioned detection side
Formula have not accurate enough (with the use of acid solution, inevitably there is metal ion in such as detection acid solution combined density
Influence combined density numerical value), some has certain hysteresis quality, and (sending laboratory testing, time-consuming, but acid strength is dripped using soda acid
Determine method, numerical value is accurate), and it is not avoided that the phenomenon that acid base concentration can be reduced with routine use to concentration.With soda acid
The reduction of concentration, it is necessary to extend corresponding soaking time, the validity of pickling is difficult to be guaranteed, and owes pickling and overpickling
The quality that (pickling) is examined in etch will be directly affected.There is an urgent need to a kind of inspections of on-line automatic prosecution acid base concentration by people as a result,
Experiment device, by acid base concentration control within target zone, to guarantee the validity and stability of pickling.
Summary of the invention
It is an object of the present invention to be directed to, acid base concentration artificial detection is not accurate enough there are numerical value in current pickling or deposits
The hysteresis quality the problem of, the verifying attachment that on-line automatic prosecution acid base concentration in (pickling) is examined in a kind of etch is provided.
The object of the present invention is achieved like this: the device of on-line automatic prosecution acid base concentration in a kind of etch assembly line,
Including nitric acid slot independent in assembly line, hydrochloric acid trough and lye tank (vat) and the independent self-circulating pump of each slot, which is characterized in that dress
It include concentrated nitric acid slot, concentrated hydrochloric acid slot and concentrated base liquid bath, and metering pump corresponding with them in setting；It further include PLC control in device
System processed, and Switzerland ten thousand logical 2035 is relied on to build the on-line automatic prosecution acid base concentration analytical equipment in three tunnels；
The on-line automatic prosecution acid base concentration analytical equipment in three tunnels includes distilled water pump, PH buffer solution pump, NaOH standard liquid pump,
Concentrated base liquid pump and positive displacement pump, reaction cup, and for on-line checking nitric acid slot and hydrochloric acid trough quantitative loop and be used for on-line checking
The quantity tube of lye tank (vat), in which:
PH buffer solution pump extracts PH buffer for verifying PH combination electrode；
NaOH standard liquid pump is inputted by extracting NaOH standard liquid as titration standard liquid with self-circulating pump On-line testing and by quantitative loop
The nitric acid slot or hydrochloric acid trough test sample of reaction cup determine drop by measurement potential change by PH combination electrode in reaction cup
Determine terminal and obtain detection information, and passes through analog signal transmission to PLC control system；
On-line testing and by quantity tube input the lye tank (vat) test sample of reaction cup in reaction cup by PH combination electrode and
Temperature electrode directly obtains detection information, and passes through analog signal transmission to PLC control system；When detection information is lower than setting value
When, setting value is adjusted to by the high alkali liquid that concentrated base liquid pump extracts, and the additive amount is converted into analog signal transmission to PLC control
System；
The operating mode of on-line automatic prosecution acid base concentration analytical equipment is arranged in PLC control system, and by on-line automatic prosecution acid
Alkali concentration analytical equipment controls corresponding metering pump addition concentrated acid liquid or high alkali liquid after obtaining analog control signal, to adjust tested
Survey the acid base concentration of slot；
It, be first by distilled water pump to quantitative loop, reaction cup and corresponding when selecting test object for nitric acid slot or hydrochloric acid trough
Pipeline cleaned, be first by distilled water pump to quantity tube, reaction cup and phase when selecting test object for lye tank (vat)
The pipeline answered is cleaned,
After cleaning or detect every time, the raffinate in positive displacement pump emptying reaction cup will be passed through.
In the present invention, On-line testing nitric acid slot and the pipeline of hydrochloric acid trough test sample are equipped with a solenoid valve module,
On the pipeline of On-line testing lye tank (vat) test sample and solenoid valve module, each solenoid valve module also are provided on buffer intake line
It is reserved with tap water flushing interface.
In the present invention, PH combination electrode includes measuring electrode and reference electrode, before use, PH combination electrode passes through respectively
The buffer of PH=7 carries out zero point correction, carries out slope calibration by the buffer of PH=9.
In the present invention, the concentration of NaOH standard liquid is 0.1mol/L, and the volume of quantity tube is 50ml, and the volume of quantitative loop is
1ml。
In the present invention, at least there are six output control terminal and one group of data lines for the PLC control system, wherein institute
The output control terminal stated controls three self-circulating pumps corresponding with nitric acid slot, hydrochloric acid trough and lye tank (vat) and three metering pumps respectively；
PLC control system receives three by the working condition of the on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnel of data line traffic control
The analog signal that is formed after the on-line automatic circulation prosecution acid base concentration analytical equipment detection in road, and accordingly or directly display detection knot
Fruit, or to corresponding metering pump timing controlled, start quantitative liquid replenishing program.
The present invention has the advantages that due in traditional etch assembly line and relying on Switzerland ten thousand logical 2035 to build three tunnels to exist
The automatic prosecution acid base concentration analytical equipment of line, and nitric acid slot, hydrochloric acid are detected and controlled by metering pump automatically by PLC control system
The concentration of slot and lye tank (vat) can not only promote the validity and stability of etch (pickling) process, but also can be to avoid work
Make personnel and directly contact a variety of chemical reagent, has important role to the inherently safe for improving employee.
It is also an advantage of the present invention that: since the on-line automatic prosecution acid base concentration analytical equipment in three tunnels includes distilled water pump,
PH buffer solution pump, NaOH standard liquid pump, concentrated base liquid pump and positive displacement pump, reaction cup, and it is used for on-line checking nitric acid slot and hydrochloric acid trough
Quantitative loop and quantity tube for on-line checking lye tank (vat), in which: it is multiple for verifying PH that PH buffer solution pump extracts PH buffer
Composite electrode；NaOH standard liquid pump and self-circulating pump On-line testing and passes through quantitative loop by extracting NaOH standard liquid as titration standard liquid
The nitric acid slot or hydrochloric acid trough test sample for inputting reaction cup pass through measurement potential change by PH combination electrode in reaction cup with true
Determine titration end-point and obtain detection information, and passes through analog signal transmission to PLC control system；On-line testing is simultaneously defeated by quantity tube
The lye tank (vat) test sample for entering reaction cup directly obtains detection information by PH combination electrode and temperature electrode in reaction cup, and
Pass through analog signal transmission to PLC control system；When detection information is lower than setting value, the high alkali liquid tune that is extracted by concentrated base liquid pump
It is whole to arrive setting value, and the additive amount is converted into analog signal transmission to PLC control system；PLC control system setting is online certainly
The operating mode of dynamic prosecution acid base concentration analytical equipment, and simulation control is obtained by on-line automatic prosecution acid base concentration analytical equipment
Corresponding metering pump addition concentrated acid liquid or high alkali liquid are controlled after signal, to adjust the acid base concentration for being detected slot；It is detected in selection
When object is nitric acid slot or hydrochloric acid trough, quantitative loop, reaction cup and corresponding pipeline are cleaned by distilled water pump first,
When selecting test object for lye tank (vat), quantity tube, reaction cup and corresponding pipeline are carried out by distilled water pump first clear
It washes, these measures can prevent interfering with each other between different slots in cycle detection, and the inspection to each slot solution is also ensured
Survey precision.
It is also an advantage of the present invention that: since at least there are six output control terminal and one group of numbers for the PLC control system
According to line, wherein the output control terminal control respectively three self-circulating pumps corresponding with nitric acid slot, hydrochloric acid trough and lye tank (vat) and
Three metering pumps, the analog signal of the logical 2,035 3 tunnel online automatic detection information of data line reception Switzerland ten thousand, and according to
Fluid infusion program, to corresponding metering pump timing controlled, whole system is novel in design, compact layout.
Detailed description of the invention
Fig. 1 is the principle of the present invention block diagram.
Fig. 2 is a kind of workflow block diagram of the present invention.
Fig. 3 is the principle signal for relying on Switzerland ten thousand logical 2035 to build the on-line automatic prosecution acid base concentration analytical equipment in three tunnels
Figure.
Fig. 4 is that the detection in the on-line automatic prosecution acid base concentration analytical equipment in tri- tunnel nitric acid Cao flows to schematic diagram.
Fig. 5 is that detection of the hydrochloric acid trough in the on-line automatic prosecution acid base concentration analytical equipment in three tunnels flows to schematic diagram.
Fig. 6 is that detection of the lye tank (vat) in the on-line automatic prosecution acid base concentration analytical equipment in three tunnels flows to schematic diagram.
In figure: 1, distilled water pump, 2, PH buffer solution pump, 3, NaOH standard liquid pump, 4, concentrated base liquid pump, 5, positive displacement pump, 6, reaction
Cup, 7, quantitative loop, 8, quantity tube, 9, solenoid valve module, 10, PH combination electrode, 11, temperature electrode.
Specific embodiment
The unrestricted basic structure and its course of work for disclosing the embodiment of the present invention of attached drawing is right with reference to the accompanying drawing
The present invention is further described.
As seen from Figure 1, the present invention includes independent nitric acid slot, hydrochloric acid trough and lye tank (vat) and each slot independence in assembly line
Self-circulating pump, further include and the concentrated nitric acid slot of their Corresponding matchings, concentrated hydrochloric acid slot, concentrated base liquid bath and metering pump.In device also
Including PLC control system, and Switzerland ten thousand logical 2035 is relied on to build the on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnels (figure
In referred to as in-line analyzer).
At least there are six output control terminal and one group of data lines for the PLC control system, wherein the output control
End controls three self-circulating pumps corresponding with nitric acid slot, hydrochloric acid trough and lye tank (vat) and three metering pumps respectively.PLC control system by
The working condition of the on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnel of data line traffic control, receives the on-line automatic circulation in three tunnels
The analog signal that is formed after the detection of prosecution acid base concentration analytical equipment, and accordingly or testing result is directly displayed, or to corresponding
Metering pump timing controlled starts quantitative liquid replenishing program.
From Fig. 2 combination Fig. 1: when system works, PLC control system opens oneself of nitric acid slot, hydrochloric acid trough and lye tank (vat)
Circulating pump, the on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnels will circuit sequentially under PLC control system control by each
From self-circulating pump output end acquire sample message, testing result feeds back PLC control system again, when result is higher than setting value,
It is directly displayed by PLC control system as a result, then to corresponding metering pump timing controlled, starting quantitative mend when lower than setting value
Liquid program.
The numerical value of the on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnels is reached using the analog signal of 0/4-20mA
PLC control system.After each cycle detection, the numerical value of transmission has the acid solution density of nitric acid slot, the acid solution density of hydrochloric acid trough respectively
With the pH value of lye tank (vat).When the pH value of lye tank (vat) is less than alkali-titration required value, alkali-titration volumetric quantities can be transmitted to PLC
Control system.
As seen from Figure 3, the on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnels of the present embodiment is based on Switzerland ten thousand
Logical 2035 build, and main component includes distilled water pump 1, PH buffer solution pump 2, NaOH standard liquid pump 3, concentrated base liquid pump 4 and positive displacement pump
5, reaction cup 6, and for the quantitative loop 7 of on-line checking nitric acid slot and hydrochloric acid trough and for the quantity tube of on-line checking lye tank (vat)
8.A solenoid valve module 9, On-line testing are equipped with also on On-line testing nitric acid slot and the pipeline of hydrochloric acid trough test sample simultaneously
Solenoid valve module 9 also is provided on the pipeline of lye tank (vat) test sample and on buffer intake line, each solenoid valve module 9 is reserved
There is tap water flushing interface.
In the present invention, two kinds of buffers equipped with PH=7 and PH=9, system work before: by PH buffer solution pump 2 extract PH=
7 buffer carries out zero point correction to PH combination electrode 10, then extracts the buffer of PH=9 to PH combination electrode by PH buffer solution pump 2
10 carry out slope calibration.
The method of calibration PH combination electrode 10 is:
When calibrating PH electrode, distilled water pump 1 is first turned on, with distilled water flushing reaction cup 6, has rinsed the starting row of positive displacement pump 5
Liquid.Then PH buffer solution pump 2 extracts the buffer solution of PH=7 to reaction cup 6 first and carries out zero point correction, after the completion of calibration, drain.
It is then turned on distilled water pump 1, with distilled water flushing reaction cup 6, positive displacement pump 5 has been rinsed and has started drain.Then PH buffer solution pump 2 is taken out again
The buffer solution of PH=9 to reaction cup 6 is taken to carry out slope calibration, after the completion of calibration, drain.Distilled water flushing reaction cup is finally used again
6, it is ready for detection next time
After cleaning or detect every time, the raffinate in the emptying reaction cup 6 of positive displacement pump 5 will be passed through.
By Fig. 4 and Fig. 5 as it can be seen that select test object for nitric acid slot or hydrochloric acid trough before, first by distilled water pump 1 it is right
Quantitative loop 7, reaction cup 6 and corresponding pipeline are cleaned, then by NaOH standard liquid pump 3 by extracting NaOH standard liquid as drop
Calibration solution, with self-circulating pump On-line testing and the nitric acid slot for inputting reaction cup 6 by quantitative loop 7 or hydrochloric acid trough test sample are anti-
It answers in cup 6 and measurement potential change is passed through to determine that titration end-point obtains detection information by PH combination electrode 10, and believed by simulation
Number it is transmitted to PLC control system.
The difference of Fig. 4 and Fig. 5 is only that: Fig. 4 is that is acquired by solenoid valve module is the sample of nitric acid slot, and Fig. 5 is then
By solenoid valve module 9 acquire be hydrochloric acid trough sample.
In the present embodiment, the concentration of NaOH standard liquid is 0.1mol/L, and the volume of quantity tube is 50ml, the appearance of quantitative loop 7
Product is 1ml.
In actual use, the course of work is as follows:
It is all that NaOH is used using PH combination electrode 10 as working electrode using acid base titration-for nitric acid slot, hydrochloric acid trough solution
Standard liquid is titrated.Using the method for dynamic titration, the as titration end-point when jumping occurs for electrode potential, according to titration end-point
The volume and molar concentration of the NaOH of consumption calculate the quality of relative acid, divided by the sample volume of acid solution, obtain acid solution density.
When detecting nitric acid slot or hydrochloric acid trough, distilled water pump 1 is first turned on, with distilled water flushing reaction cup 6, the row of flushing
Liquid pump 5 starts drain.The solenoid valve 9 for being then turned on corresponding nitric acid slot or hydrochloric acid trough carries out nitric acid slot or hydrochloric acid trough sampling, sampling
To quantitative loop 7 until being full of quantitative loop 7, (sample time is big according to the flow of self-circulating pump for the extra pickling line sewage pipe that drains into
Small proper extension, it is ensured that is detected every time is major trough acid solution), distilled water pump 1, which is then then turned on, with distilled water is pressed into 7 band of quantitative loop
Liquid is detected to reaction cup 6.Then 3 starting of NAOH standard liquid pump, is titrated with NaOH standard liquid.Start positive displacement pump after the completion of detection
5 carry out drain.Then distilled water flushing reaction cup 6 is used again, is ready for detection next time.Finally nitric acid slot is cleaned with tap water
Or hydrochloric acid trough sampling pipe.The above operation is all to automatically control to carry out in setting program.
PLC control system establishes fluid infusion program according to attachment fluid infusion formula and runs program (control self-loopa accordingly
Pump startup and metering pump time opening).
For mending acids, needs to be set lower than inside fluid infusion program and mend acid concentration value (A-1) g/L(and be lower than that how many when start
Mend acid) and acid target concentration value (A+1) g/L(is mended i.e. according to the attainable target value of attachment fluid infusion formula institute), it is contemplated that it is
System error, the range that can control acid strength is A ± 2g/L, and wherein A is target value.
It as seen from Figure 6, be first by distilled water pump 1 to quantity tube 8, reaction when selecting test object for lye tank (vat)
Cup 6 and corresponding pipeline are cleaned.On-line testing simultaneously inputs the lye tank (vat) test sample of reaction cup 6 anti-by quantity tube 8
It answers in cup 6 and detection information is directly obtained by PH combination electrode 10 and temperature electrode 11, and controlled by analog signal transmission to PLC
System processed；When detection information is lower than fluid infusion value, setting value is adjusted to by the high alkali liquid that concentrated base liquid pump 4 extracts, and by the addition
Amount is converted to analog signal transmission to PLC control system.
In actual use, specific work process are as follows:
For alkaline aqueous solution.Using PH combination electrode 10 as working electrode, pH value is directly measured.
When detecting lye, distilled water pump 1 is first turned on, with distilled water flushing reaction cup 6, has rinsed drain pump startup row
Liquid.It is then turned on lye solenoid valve 9 and carries out lye tank (vat) sampling, until being full of quantity tube 8, extra drains into acid for sampling to quantity tube
Wash line sewage pipe (sample time is appropriately extended according to the uninterrupted of self-circulating pump, it is ensured that is detected every time is major trough lye).
It is then turned on 8 valve of quantity tube, 8 lye of quantity tube is pumped down to reaction cup 6, using PH combination electrode 10 as working electrode, directly
It connects and measures pH value.When analyzer detection pH value is lower than required value, analyzer can open the alkali that high alkali liquid pumping takes high alkali liquid bucket
Liquid carries out being titrated to pH value being setting value.Starting positive displacement pump 5 carries out drain after the completion of detection, is then reacted again with distilled water flushing
Cup 6 is ready for detection next time.Finally lye sampling pipe is cleaned with tap water.The above operation is all in-line analyzer journey
Sequence automatically controls progress.
It, need to be in analyzer inner setting alkali-titration fluid infusion value (target value need to be greater than) and alkali-titration for mending bases
Setting value, when analyzer detection pH value be lower than fluid infusion value when, analyzer can take the lye of high alkali liquid bucket carry out being titrated to pH value be
Setting value, and alkali-titration volume is transmitted to PLC control system.Than titrating, fluid infusion value is big by 0.5 to be general alkali-titration setting value
It can.
Although disclosing the embodiment of the present invention for the purpose of illustration, those skilled in the art
It is appreciated that in the spirit and scope for not departing from the present invention and appended claims, various substitutions, changes and modifications
It is all possible.Therefore, the scope of the present invention is not limited to the embodiment and attached drawing disclosure of that.
Claims (5)
1. the device of on-line automatic prosecution acid base concentration in a kind of etch assembly line, including independent nitric acid slot, salt in assembly line
Acid tank and lye tank (vat) and the independent self-circulating pump of each slot, which is characterized in that in device include concentrated nitric acid slot, concentrated hydrochloric acid slot and
Concentrated base liquid bath, and metering pump corresponding with them；Further include PLC control system in device, and Switzerland ten thousand logical 2035 is relied on to take
Build the on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnels；
The on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnels includes distilled water pump, PH buffer solution pump, NaOH mark
Liquid pump, concentrated base liquid pump and positive displacement pump, reaction cup, and for the quantitative loop of on-line checking nitric acid slot and hydrochloric acid trough and for online
Detect the quantity tube of lye tank (vat), in which:
PH buffer solution pump extracts PH buffer for verifying PH combination electrode；
NaOH standard liquid pump is inputted by extracting NaOH standard liquid as titration standard liquid with self-circulating pump On-line testing and by quantitative loop
The nitric acid slot or hydrochloric acid trough test sample of reaction cup determine drop by measurement potential change by PH combination electrode in reaction cup
Determine terminal and obtain detection information, and passes through analog signal transmission to PLC control system；
On-line testing and by quantity tube input the lye tank (vat) test sample of reaction cup in reaction cup by PH combination electrode and
Temperature electrode directly obtains detection information, and passes through analog signal transmission to PLC control system；When detection information is lower than setting value
When, setting value is adjusted to by the high alkali liquid that concentrated base liquid pump extracts, and the additive amount is converted into analog signal transmission to PLC control
System；
The operating mode of on-line automatic prosecution acid base concentration analytical equipment is arranged in PLC control system, and by on-line automatic prosecution acid
Alkali concentration analytical equipment controls corresponding metering pump addition concentrated acid liquid or high alkali liquid after obtaining analog control signal, to adjust tested
Survey the acid base concentration of slot；
It, be first by distilled water pump to quantitative loop, reaction cup and corresponding when selecting test object for nitric acid slot or hydrochloric acid trough
Pipeline cleaned, be first by distilled water pump to quantity tube, reaction cup and phase when selecting test object for lye tank (vat)
The pipeline answered is cleaned,
After cleaning or detect every time, the raffinate in positive displacement pump emptying reaction cup will be passed through.
2. the device of on-line automatic prosecution acid base concentration in etch assembly line according to claim 1, which is characterized in that
Line drawing nitric acid slot and the pipeline of hydrochloric acid trough test sample are equipped with a solenoid valve module, On-line testing lye tank (vat) test sample
Pipeline on and buffer intake line on also be provided with solenoid valve module, each solenoid valve module is reserved with tap water flushing and connects
Mouthful.
3. the device of on-line automatic prosecution acid base concentration in etch assembly line according to claim 1, which is characterized in that PH
Combination electrode includes measuring electrode and reference electrode, before use, the buffer that PH combination electrode passes through PH=7 respectively carries out zero point
Calibration carries out slope calibration by the buffer of PH=9.
4. the device of on-line automatic prosecution acid base concentration in etch assembly line according to claim 1, which is characterized in that
The concentration of NaOH standard liquid is 0.1mol/L, and the volume of quantity tube is 50ml, and the volume of quantitative loop is 1ml.
5. according to claim 1 in etch assembly line described in one of -4 on-line automatic prosecution acid base concentration device, feature
It is, at least there are six output control terminal and one group of data lines for the PLC control system, wherein the output control terminal
Three self-circulating pumps corresponding with nitric acid slot, hydrochloric acid trough and lye tank (vat) and three metering pumps are controlled respectively；PLC control system is by counting
According to the working condition of the on-line automatic circulation prosecution acid base concentration analytical equipment in three tunnel of line traffic control, the on-line automatic circulation inspection in three tunnels is received
The analog signal that is formed after control acid base concentration analytical equipment detection, and accordingly or testing result is directly displayed, or to corresponding meter
Amount pump timing controlled, starts quantitative liquid replenishing program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694883.9A CN109144122A (en) | 2018-06-29 | 2018-06-29 | The device of on-line automatic prosecution acid base concentration in etch assembly line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694883.9A CN109144122A (en) | 2018-06-29 | 2018-06-29 | The device of on-line automatic prosecution acid base concentration in etch assembly line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109144122A true CN109144122A (en) | 2019-01-04 |
Family
ID=64802412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810694883.9A Pending CN109144122A (en) | 2018-06-29 | 2018-06-29 | The device of on-line automatic prosecution acid base concentration in etch assembly line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109144122A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128216A (en) * | 2022-06-24 | 2022-09-30 | 浙江水木物联技术有限公司 | A maintenance device for pH value detection in a dyeing machine and a method of using the same |
| CN116692971A (en) * | 2023-06-30 | 2023-09-05 | 戴思乐科技集团有限公司 | Control method and system of intelligent water quality management integrated machine |
| WO2025000614A1 (en) * | 2023-06-25 | 2025-01-02 | 中冶南方工程技术有限公司 | Method and system for online measurement of lye concentration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296193A (en) * | 1993-04-07 | 1994-03-22 | Deutsche Metrohm Gesellschaft mit beschrankter Haftung & Co. elektronische Messgerate | Combined titration apparatus |
| JP2003100696A (en) * | 2001-09-26 | 2003-04-04 | Sony Corp | Automatic concentration control device |
| CN1414393A (en) * | 2002-09-16 | 2003-04-30 | 米文达 | Method of on line detecting acid bath components and its detecting apparatus |
| CN101727023A (en) * | 2008-10-28 | 2010-06-09 | 浩硕科技股份有限公司 | Method for controlling concentration of etching solution |
| CN103850074A (en) * | 2014-03-17 | 2014-06-11 | 佛山市金铭机械制造有限公司 | On-line measuring and controlling system for alkali concentration in printing and dyeing pretreatment process |
-
2018
- 2018-06-29 CN CN201810694883.9A patent/CN109144122A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296193A (en) * | 1993-04-07 | 1994-03-22 | Deutsche Metrohm Gesellschaft mit beschrankter Haftung & Co. elektronische Messgerate | Combined titration apparatus |
| JP2003100696A (en) * | 2001-09-26 | 2003-04-04 | Sony Corp | Automatic concentration control device |
| CN1414393A (en) * | 2002-09-16 | 2003-04-30 | 米文达 | Method of on line detecting acid bath components and its detecting apparatus |
| CN101727023A (en) * | 2008-10-28 | 2010-06-09 | 浩硕科技股份有限公司 | Method for controlling concentration of etching solution |
| CN103850074A (en) * | 2014-03-17 | 2014-06-11 | 佛山市金铭机械制造有限公司 | On-line measuring and controlling system for alkali concentration in printing and dyeing pretreatment process |
Non-Patent Citations (1)
| Title |
|---|
| 林浩然等: "EMS空中输送系统在齿轮酸洗行业中的应用", 《科技创新与应用》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128216A (en) * | 2022-06-24 | 2022-09-30 | 浙江水木物联技术有限公司 | A maintenance device for pH value detection in a dyeing machine and a method of using the same |
| CN115128216B (en) * | 2022-06-24 | 2024-11-19 | 浙江水木物联技术有限公司 | A maintenance device for pH value detection in a dyeing machine and a method of using the same |
| WO2025000614A1 (en) * | 2023-06-25 | 2025-01-02 | 中冶南方工程技术有限公司 | Method and system for online measurement of lye concentration |
| CN116692971A (en) * | 2023-06-30 | 2023-09-05 | 戴思乐科技集团有限公司 | Control method and system of intelligent water quality management integrated machine |
| CN116692971B (en) * | 2023-06-30 | 2024-04-02 | 戴思乐科技集团有限公司 | Control method and system of intelligent water quality management integrated machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102346194B (en) | Water quality on-line monitoring automatic quality control system | |
| CN209086148U (en) | Concentration on-line automatic detection device | |
| CN109144122A (en) | The device of on-line automatic prosecution acid base concentration in etch assembly line | |
| CN102183520A (en) | Water hardness on-line measurement device based on solution image technology and measurement method thereof | |
| CN103196479B (en) | Fiber optic flow, the reality stream caliberating device of moisture sensor and scaling method | |
| CN202120107U (en) | Automatic quality control system for water quality on-line monitoring | |
| US11835455B2 (en) | Atomic fluorescence analysis method and device using water as carrier fluid | |
| CN102128871A (en) | Flowing adding sodium analyzer checking method and device | |
| CN108896629A (en) | A kind of 3 flow-type caliberating devices of sodium ion densimeter and its scaling method | |
| CN103399163B (en) | Phosphorus and fluorine content online test analyzer | |
| CN213041613U (en) | Water quality analyzer | |
| CN110006893B (en) | Online automatic determination method for zirconium silane concentration | |
| CN209656565U (en) | Using water as the atomic fluorescence analyzing device of current-carrying | |
| CN114791457B (en) | Verification method and device for online pH analyzer of power plant | |
| CN219179333U (en) | Online titration analyzer for boric acid of nuclear power station | |
| CN111735906A (en) | Method for determining alkalinity of water sample and analysis system | |
| CN214096281U (en) | High-pressure angle type water meter mass method calibrating device | |
| CN207114256U (en) | Sample liquid definite value sampling apparatus | |
| CN208432562U (en) | PH value of fabrics is tested automatically and rating system | |
| CN107300485A (en) | Sample liquid definite value sampling apparatus and method | |
| CN109991224B (en) | Online automatic determination method for concentration of accelerator | |
| CN114778760A (en) | Two-piece tank cleaning process online monitoring system and method | |
| CN203376336U (en) | Phosphorus and fluorine content on-line testing analysis meter | |
| CN201852718U (en) | Fully automatic mid-stage quantitative liquid sampling device | |
| CN105223257B (en) | The on-line determination method of zinc ion concentration in electroplate liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190926 Address after: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. Address before: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200515 Address after: 211100 No. 30 Houjiao Road, High-tech Park, Jiangning District, Nanjing City, Jiangsu Province Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |