CN107271604A - Cross alkali number in-line analyzer - Google Patents
Cross alkali number in-line analyzer Download PDFInfo
- Publication number
- CN107271604A CN107271604A CN201710572442.7A CN201710572442A CN107271604A CN 107271604 A CN107271604 A CN 107271604A CN 201710572442 A CN201710572442 A CN 201710572442A CN 107271604 A CN107271604 A CN 107271604A
- Authority
- CN
- China
- Prior art keywords
- interface
- expects pipe
- alkali number
- shell
- reaction cup
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
- G01N31/162—Determining the equivalent point by means of a discontinuity
- G01N31/164—Determining the equivalent point by means of a discontinuity by electrical or electrochemical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
Alkali number in-line analyzer, including a shell, the control module and operation module that are placed in shell are crossed the invention discloses one kind；The operation module was used for the on-line analysis of alkali number.Alkali number in-line analyzer is crossed the invention provides one kind, the invention can be mounted directly to the scene of chemical plant installations, it can automatically sample, analyze, by result remote transmission, without artificial sample analysis, greatly reduce labour, also overcome the drawbacks of can not determining terminal because test solution is muddy, coloured or lacks suitable indicators in general capacity analysis.The present invention can directly automatically analyze the content of carbanion in salt solution and hydroxide ion and the on-line monitoring of alkali number is crossed in salt solution so as to reach.
Description
Technical field
Field is monitored the present invention relates to chemical industry equipment, and in particular to a kind of to be used to monitor the carbanion in salt solution on-line
With the alkali number in-line analyzer excessively of hydroxide ion concentration.
Background technology
Chemical Manufacture flow, it is sometimes desirable to continuously or periodically detect the dense of carbanion and hydroxide ion in salt solution
Degree, to prevent concentration over-standard, traditional way be fixed pattern samples censorship to test be to examine by way of monitor, such way
Defect be, sample and detect cumbersome, the frequency of monitoring is restricted, it is impossible to timely and accurately monitor production procedure
In reaction solution change.
The content of the invention
For above-mentioned technical problem, the present invention provides one kind and crosses alkali number in-line analyzer.
One kind crosses alkali number in-line analyzer, including a shell, the control module and operation module that are placed in shell；
The operation module was used for the on-line analysis of alkali number.
It is preferred that, the operation module includes the reaction cup of magnetic stir bar built in one；The reaction cup passes through material respectively
Pipe connects a feed pump and a micro charge pump；A discharge proportional valve is additionally provided with, the proportional valve has three interfaces, each
Interface is all connected with an expects pipe, and the expects pipe of one of interface is connected to reaction cup bottom, and the expects pipe lower end of second interface is located at
The top of first interface expects pipe, the expects pipe of the 3rd interface connects a certain amount of discharge pump.
It is preferred that, provided with a compound PH meters in the reaction cup.
It is preferred that, the stirrer is driven by a magnetic motor.
It is preferred that, the material of the shell is engineering plastics..
It is preferred that, the control module is PLC control modules, including a display screen, USB interface and power supply on shell
Switch.
Alkali number in-line analyzer is crossed the invention provides one kind, the invention can be mounted directly to the scene of chemical plant installations,
It can automatically sample, analyze, by result remote transmission, without artificial sample analysis, greatly reduces labour, also overcomes one
As the drawbacks of can not determine terminal because test solution is muddy, coloured or lacks suitable indicators in capacity analysis.The present invention can be direct
The content of the carbanion in salt solution and hydroxide ion is automatically analyzed to reach the online prison of mistake alkali number in salt solution
Survey.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.
Fig. 1 is the structural representation for crossing alkali number in-line analyzer proposed by the invention；
Fig. 2 is the structure chart of operation module in Fig. 1.
Numeral is represented in figure：
A, operation module
1st, quantitative discharge pump 2, feed pump 3, discharge proportional valve 4, stirrer 5, motor
6th, reaction cup 7, micro charge pump 8, compound PH meters 9, expects pipe
10th, power switch 11, usb 12, display screen 13, shell.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.
Embodiment：
Shown in Fig. 1 and 2, one kind crosses alkali number in-line analyzer, including a shell 13, the control module that is placed in shell 13 and operation
Modules A；
The operation module A was used for the on-line analysis of alkali number.
It is preferred that, the operation module A includes the reaction cup 6 of magnetic stir bar 4 built in one；The reaction cup 6 is led to respectively
Charge tube 9 connects a feed pump 2 and a micro charge pump 7；A discharge proportional valve 3 is additionally provided with, the proportional valve has three
Interface, each interface is all connected with an expects pipe 9, and the expects pipe 9 of one of interface is connected to the bottom of reaction cup 6, and the interface is used for will
Waste liquid in reaction cup 6 is extracted out, and the quantitative discharge pump 1 then connected by the 3rd interface is discharged；The expects pipe 9 of second interface
Lower surface is located at the top of first lower surface of interface expects pipe 9, when first interface expects pipe 9 in extraction cup 6 liquid
When, the bottom of expects pipe 9 that liquid level to second interface is connected just stops extracting waste liquid out；The expects pipe 9 of 3rd interface connects a certain amount of
Discharge pump 1.
Provided with a compound PH meters 8 in the reaction cup 6.
The stirrer 4 is driven by a magnetic motor 5.
The material of the shell 13 is engineering plastics..
The control module is PLC control modules, including a display screen 12, usb 11 and power supply on shell 13
Switch 10.
Implementation principle：
Apparatus field is monitored on-line the present invention relates to chemical industry, is by measuring electrode potential change, to measure ion concentration.Gao Xing
The reference electrode of energy, constitutes a working battery with detected solution, then adds titrant.In titration process, due to occurring
Chemical reaction, is constantly changed by the concentration of measured ion, thus the current potential of indicator electrode changes therewith.It is attached in titration end-point
Closely, undergone mutation by the concentration of measured ion, cause the hop of electrode potential, can determine that titration eventually according to the hop of electrode potential
Point, and measurement result is shown by industrial computer.
Implementation process：The power switch 10 above analyzer is clicked on, feed pump 2, which is operated, is injected into salt solution in reaction cup 6
（The height of salt solution requires more than the lower surface height of the expects pipe 9 of quantitative 1 second interface connection of discharge pump), quantitative discharge pump 1 is opened
Begin to operate, extract unnecessary salt solution out, pass through waste collection pipe（Do not marked in figure）Discharge, is determined the salt solution in reaction cup 6
Sample is measured, after the standard liquid that quantitative sulfuric acid or hydrochloric acid are added by micro charge pump 7, stirring motor 5 starts, magnetic agitation
Motor 5 drives the middle power stirrer 4 in reaction cup 6 to rotate, and salt solution is carried out after uniform stirring, the principle of potentiometric titration is utilized
（Potentiometric titration is the hop by electrode potential to indicate titration end-point.Before and after reaching home in titration, in dropping liquid it is to be measured from
Sub- concentration often n order of magnitude of consecutive variations, causes the hop of current potential, is tested the content of composition still through consumption titrant
Measure to calculate.）8 are counted by compound PH and measures first terminal, are calculated the consumption of standard liquid, are drawn the mistake of sodium hydroxide
Value；Continue through micro charge pump 7 and add quantitative sulfuric acid or hydrochloric acid standard solution progress uniform stirring（Whipping process is same
On）, count 8 by compound PH and measure second terminal, calculate the consumption of standard liquid, draw the excessive value of sodium carbonate.Survey
Go out discharge pump after the excessive value of sodium hydroxide and sodium carbonate to start running, salt solution is discharged by waste collection pipe.
Alkali number in-line analyzer is crossed the invention provides one kind, the invention can be mounted directly to the scene of chemical plant installations,
It can automatically sample, analyze, by result remote transmission, without artificial sample analysis, greatly reduces labour, also overcomes one
As the drawbacks of can not determine terminal because test solution is muddy, coloured or lacks suitable indicators in capacity analysis.
A variety of modifications to these embodiments will be apparent for those skilled in the art, herein
Defined General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.
Claims (6)
1. one kind crosses alkali number in-line analyzer, it is characterised in that including a shell, the control module being placed in shell and operation mould
Block；
The operation module was used for the on-line analysis of alkali number.
2. analyzer according to claim 1, it is characterised in that the operation module includes magnetic stir bar built in one
Reaction cup；The reaction cup connects a feed pump and a micro charge pump by expects pipe respectively；A discharge proportional valve is additionally provided with,
The proportional valve has three interfaces, and each interface is all connected with an expects pipe, and the expects pipe of one of interface is connected to reaction cup bottom
Portion, the expects pipe lower end of second interface is located at the top of first interface expects pipe, and the expects pipe of the 3rd interface connects a certain amount of row
Expect pump.
3. analyzer according to claim 2, it is characterised in that provided with a compound PH meters in the reaction cup.
4. analyzer according to claim 2, it is characterised in that the stirrer is driven by a magnetic motor.
5. analyzer according to claim 1, it is characterised in that the material of the shell is engineering plastics.
6. analyzer according to claim 1, it is characterised in that the control module is PLC control modules, including located at
A display screen, USB interface and power switch on shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572442.7A CN107271604A (en) | 2017-07-14 | 2017-07-14 | Cross alkali number in-line analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572442.7A CN107271604A (en) | 2017-07-14 | 2017-07-14 | Cross alkali number in-line analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107271604A true CN107271604A (en) | 2017-10-20 |
Family
ID=60073000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710572442.7A Pending CN107271604A (en) | 2017-07-14 | 2017-07-14 | Cross alkali number in-line analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107271604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257313A (en) * | 2020-03-03 | 2020-06-09 | 江苏一脉科技有限公司 | High-precision alkali passing amount online analysis system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063804A (en) * | 2012-12-28 | 2013-04-24 | 中盐金坛盐化有限责任公司 | Analysis method for rapid determination of redundant alkali amount of brine |
| CN104764891A (en) * | 2015-03-30 | 2015-07-08 | 江苏一脉科技有限公司 | Online analyzer for excess of caustic soda |
| CN204536342U (en) * | 2015-03-30 | 2015-08-05 | 江苏一脉科技有限公司 | One crosses alkali number in-line analyzer |
-
2017
- 2017-07-14 CN CN201710572442.7A patent/CN107271604A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063804A (en) * | 2012-12-28 | 2013-04-24 | 中盐金坛盐化有限责任公司 | Analysis method for rapid determination of redundant alkali amount of brine |
| CN104764891A (en) * | 2015-03-30 | 2015-07-08 | 江苏一脉科技有限公司 | Online analyzer for excess of caustic soda |
| CN204536342U (en) * | 2015-03-30 | 2015-08-05 | 江苏一脉科技有限公司 | One crosses alkali number in-line analyzer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257313A (en) * | 2020-03-03 | 2020-06-09 | 江苏一脉科技有限公司 | High-precision alkali passing amount online analysis system and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
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| RJ01 | Rejection of invention patent application after publication |