CN204925138U - Automatic titration acidity analysis appearance - Google Patents
Automatic titration acidity analysis appearance Download PDFInfo
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- CN204925138U CN204925138U CN201520625240.0U CN201520625240U CN204925138U CN 204925138 U CN204925138 U CN 204925138U CN 201520625240 U CN201520625240 U CN 201520625240U CN 204925138 U CN204925138 U CN 204925138U
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- peristaltic pump
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Abstract
The utility model relates to an automatic titration acidity analysis appearance, include chemical analysis storehouse and the controlling means who is used for controlling the work of chemical analysis storehouse, controlling means includes the controller, the chemical analysis storehouse includes analysis pond, the feed liquor peristaltic pump, flowing back peristaltic pump and the reagent pump that link to each other through the pipeline with the analysis pond respectively and inserts the pH electrode in the analysis pond, the controller is used for controlling the work of feed liquor peristaltic pump, flowing back peristaltic pump and reagent pump to an electric potential variation judges the transition current potential and judges titration end point with this for receiving and detection pH electrode. the titration that reagent is titrated to controller ability accurate control to give control center with the testing result timely feedback, the precision is high, simple easy operation, and the instrument during operation only needs a small amount of personnel to monitor and maintain, in addition automatic titration acidity analysis appearance also has functions such as electrode calibration, intelligence titration, weeping warning, data remote communications.
Description
Technical field
The utility model relates to a kind of analytical equipment, particularly a kind of automatic Titration acidity analysis instrument.
Background technology
Along with the raising of living standards of the people, people are more and more high to the requirement of potable water, and qualified water quality ensures healthy basic of people, but discharge that is serious due to air pollution and chemical plant, and the detection of water quality just seems particularly important.The structure of automatic Titration Water Test Kits mainly contains following two kinds in the market: analogue enlargement, transformed by simple glass buret, install titration end-point control circuit additional, the similar common buret of profile, its advantage is that price is very low, is applicable to the titrimetry that the accuracy requirement of titration is not high, but this autotitrator, function is few, low precision, and a lot of titration operation can not complete; Digital control, automatic buret adds the autotitrator that numeral differentiates titration end-point, this control system can use Single-chip Controlling, also can be as PC control by microcomputer, can produce the titration operation of potential change by corresponding liquid to be measured, but volume is comparatively large mostly, weight is larger, be unfavorable for carrying, and accuracy of instrument is uneven.In addition, in Water Test Kits, along with the increase of pendulous frequency, the product of reaction can be attached on the inwall of sample cell, and photon absorbing intensity when therefore measuring can weaken gradually, and measured value is changed, have impact on the degree of stability of instrument, therefore clean sample cell is very important in time.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of automatic Titration acidity analysis instrument, and technical scheme is:
The utility model provides a kind of automatic Titration acidity analysis instrument, and described automatic Titration acidity analysis instrument comprises chemical analysis storehouse and the control device for the work of control chemical analysis storehouse; Described control device comprises controller; Described chemical analysis storehouse comprises analysis cell, the feed liquor peristaltic pump, discharge opeing peristaltic pump and the reagent pump that are connected by pipeline with analysis cell respectively and the pH electrode inserted in analysis cell; Described controller for controlling the work of feed liquor peristaltic pump, discharge opeing peristaltic pump and reagent pump, and for receiving and detect the potential change of pH electrode, judges that transition current potential judges titration end-point with this.
Automatic Titration acidity analysis instrument of the present utility model is continuous working process from being sampled to reagent titration, data sharing between links; Controller accurately can control the titration of titer reagent, and testing result is fed back to control center in time, and precision is high, simple to operation, only needs a small amount of personnel to carry out monitoring and safeguarding during instrument work.
Further, in described analysis cell, be provided with test glass, bottom described test glass, be provided with leakage fluid dram, conveniently carry out cleaning and safeguarding.
Further, two Y type connectors and 4 pinch valves be connected with controller are also comprised in chemical analysis storehouse in described automatic Titration acidity analysis instrument; Described feed liquor peristaltic pump is connected with one end of Y type connector, and the other two ends of described Y type connector are connected with sample tank with de-ionized water tank respectively by water influent pipeline, and two pinch valves are separately positioned in water influent pipeline.Controlling to enter sample by pinch valve and Y type connector is deionized water or sample solution, by entering the switching of liquid between deionized water and sample, play electrode calibration, cleaning analysis cell, infiltrate analysis cell to prevent the effect of Sample Dilution, make analytical equipment more accurate.
Closer, described discharge opeing peristaltic pump is connected with one end of Y type connector, and other one end of described Y type connector is connected with leakage fluid dram by drain line, and the 3rd end is inserted in test glass by drain line; Described two pinch valves are separately positioned in drain line.Described discharge opeing peristaltic pump carries out constant process by the pipeline be inserted in test glass to the liquid to be measured in test glass, realizes controlling discharge opeing and constant function, improve device degree of accuracy further by pinch valve and Y type connector.
Further preferably, the chemical analysis storehouse of described automatic Titration acidity analysis instrument also comprises stirring apparatus, and this stirring apparatus is made up of the magnet rotor in test glass and the stirring motor be fixed on bottom analysis cell.Magnetic agitation is flexibly small and exquisite, ensures that solution reaction is abundant in titration process, improves degree of accuracy.
As preferably, be also provided with leakage alarm sensor in described automatic Titration acidity analysis instrument, signal imports in controller by described leakage alarm sensor, judges instrument whether leakage with this; Increase leakage warning device, the injured probability of lowering apparatus greatly.
As preferably, described control device also comprises the load module, output module, switching value module and the A/D modular converter that are connected with controller, to realize the exchanges data between external unit and controller; Described load module includes digital quantity input module, Analog input mModule and conditioning circuit module, and the output terminal of described conditioning circuit module is connected with A/D modular converter, and the input end of conditioning circuit module is connected with described pH electrode; Described output module comprises digital output module and analog output module, and described output module is for controlling the work of feed liquor peristaltic pump, reagent pump and discharge opeing peristaltic pump; Described switching value module is for controlling the start and stop of pinch valve.
As preferably, described controller is provided with multiple RS485 interface; Described control device also comprises the touch-screen and wireless module that are connected by RS485 interface with controller; Described wireless module is for realizing the data communication of controller and exterior terminal.
As preferably, described automatic titration analysis device also comprises administrative center, and described controller communicates by RS485 interface or analog quantity 4-20 signal and administrative center, uploads, reports to the police and upload and long-range start stop operation to realize result.
Automatic titration analysis device described in the utility model, described controller is connected with touch-screen and administrative center, to realize the function of operated from a distance, upper management, critical data display, system operational parameters setting, Working Status Monitoring, manual operation, data record, for supervisory engineering staff provide technical support.
The beneficial effects of the utility model are: automatic titration analysis device of the present utility model, and precision is high, can judge terminal rapidly, exactly and automatically stop titration.Feeding device is connected with sample tank and is connected with de-ionized water tank simultaneously, by entering the switching of liquid between deionized water and sample, playing electrode calibration, cleaning analysis cell, infiltrating analysis cell to place the effect of Sample Dilution, making analytical equipment more accurate.Pumping equipment, by being connected with constant mouth, can carrying out constant process to sample in analysis cell, play constant effect simultaneously, improves device degree of accuracy further.The pump used in device, compact structure, precision is high, and all can realize two kinds of functions, and cause whole automatic titration analysis device structure simple, compact, each analysis component cooperatively interacts, and instrument maintenance is convenient, and consumable accessory consumes low, long service life.
Accompanying drawing explanation
Fig. 1. automatic Titration acidity analysis instrument structural representation described in embodiment 1;
Fig. 2. automatic Titration acidity analysis instrument structural representation described in embodiment 2;
Fig. 3. automatic Titration acidity analysis instrument circuit structural representation described in embodiment 2.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Embodiment 1:
The utility model provides a kind of automatic Titration acidity analysis instrument, and described automatic Titration acidity analysis instrument comprises chemical analysis storehouse and the control device for the work of control chemical analysis storehouse; Described control device comprises controller; Described chemical analysis storehouse comprises analysis cell, the feed liquor peristaltic pump, discharge opeing peristaltic pump and the reagent pump that are connected by pipeline with analysis cell respectively and the pH electrode inserted in analysis cell; Described controller for controlling the work of feed liquor peristaltic pump, discharge opeing peristaltic pump and reagent pump, and for receiving and detect the potential change of pH electrode, judges that transition current potential judges titration end-point with this.
Analysis process is: controller controls feed liquor peristaltic pump and enter testing sample in analysis cell, reagent pump is started working, titer reagent is instilled in analysis cell, controller gathers the potential value of pH electrode, when potential value reaches transition current potential (pH=7), reagent pump quits work, and liquid in analysis cell is discharged by discharge opeing peristaltic pump, the reagent volume of controller plc record instillation also calculates automatically, completes water quality acidity analysis.
Embodiment 2:
As shown in Figure 2, described automatic Titration acidity analysis instrument, based on the analyser of embodiment 1, is provided with stirring apparatus, leakage alarm sensor, two Y type connectors and 4 pinch valves be connected with controller in described chemical analysis storehouse; Be provided with test glass in described analysis cell, bottom described test glass, be provided with leakage fluid dram; Described Y type connector one end is connected with feed liquor peristaltic pump, and two ends are connected with sample tank with de-ionized water tank respectively by water influent pipeline in addition, and described water influent pipeline arranges pinch valve respectively; Described discharge opeing peristaltic pump is connected with one end of Y type connector, and other one end of described Y type connector is connected with leakage fluid dram by drain line, and the 3rd end is inserted in test glass by drain line; Described two pinch valves are separately positioned in drain line.
It is deionized water or sample solution that described feed liquor peristaltic pump controls to enter liquid by pinch valve and Y type connector, by entering the switching of liquid between deionized water and sample, play electrode calibration, cleaning analysis cell, infiltrate analysis cell to prevent the effect of Sample Dilution, make analytical equipment more accurate; Described discharge opeing peristaltic pump carries out constant process by the pipeline be inserted in test glass to the liquid to be measured in test glass simultaneously, realizes controlling discharge opeing and constant function, improve device degree of accuracy further by pinch valve and Y type connector; Two kinds of peristaltic pumps all can realize two kinds of functions, cause whole automatic titration analysis device structure simple, compact; Analog quantity 4-20mA signal imports in controller by described leakage alarm sensor, judges instrument whether leakage with this.Increase leakage warning device, the injured probability of lowering apparatus greatly.
Embodiment 3
Based on the automatic Titration acidity analysis instrument described in embodiment 3, control device described in the utility model also comprises the load module, output module, switching value module and the A/D modular converter that are connected with controller, to realize the exchanges data between external unit and controller; Described load module includes digital quantity input module, Analog input mModule and conditioning circuit module, the output terminal of described conditioning circuit module is connected with A/D modular converter, the input end of conditioning circuit module is connected with described pH electrode, A/D modular converter is connected with controller, realizes the detection of controller to pH transition current potential; Described output module comprises digital output module and analog output module, and described output module is for controlling the work of feed liquor peristaltic pump, reagent pump and discharge opeing peristaltic pump; Described switching value module is for controlling the start and stop of pinch valve.
Described controller is provided with multiple RS485 interface in addition, and described automatic Titration acidity analysis instrument also comprises administrative center, and be connected with RS485 interface on described controller touch-screen and wireless module; Described controller communicates by RS485 interface or analog quantity 4-20 signal and administrative center, uploads, reports to the police and upload and long-range start stop operation to realize result; Described wireless module is for realizing the data communication of controller and exterior terminal.
The above embodiment is only and is described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.
Claims (10)
1. an automatic Titration acidity analysis instrument, is characterized in that, the control device (2) that described automatic Titration acidity analysis instrument comprises chemical analysis storehouse (1) and works for control chemical analysis storehouse (1); Described control device (2) comprises controller (3); Described chemical analysis storehouse (1) comprises analysis cell (4), the feed liquor peristaltic pump (5), discharge opeing peristaltic pump (6) and the reagent pump (7) that are connected by pipeline with analysis cell (4) respectively and the pH electrode (8) inserted in analysis cell (4); Described controller (3) is for controlling the work of feed liquor peristaltic pump (5), discharge opeing peristaltic pump (6) and reagent pump (7), and for receiving and detect the potential change of pH electrode (8), judge that transition current potential judges titration end-point with this.
2. automatic Titration acidity analysis instrument as claimed in claim 1, it is characterized in that, described chemical analysis storehouse (1) also comprises two Y type connectors (9) and 4 pinch valves (10) be connected with controller (3).
3. automatic Titration acidity analysis instrument as claimed in claim 2, it is characterized in that, described feed liquor peristaltic pump (5) is connected with one end of Y type connector (9), and the other two ends of described Y type connector (9) are connected with sample tank (101) with de-ionized water tank (100) respectively by water influent pipeline; Described two pinch valves (10) are separately positioned in water influent pipeline.
4. automatic Titration acidity analysis instrument as claimed in claim 3, is characterized in that, be provided with test glass (11) in described analysis cell (4), and described test glass (11) bottom is provided with leakage fluid dram (12).
5. automatic Titration acidity analysis instrument as claimed in claim 4, it is characterized in that, described discharge opeing peristaltic pump (6) is connected with one end of Y type connector (9), other one end of described Y type connector (9) is connected with leakage fluid dram (12) by drain line, and the 3rd end is inserted in test glass (11) by drain line; Described two pinch valves (10) are separately positioned in drain line.
6. automatic Titration acidity analysis instrument as claimed in claim 3, it is characterized in that, described chemical analysis storehouse (1) also comprises stirring apparatus, and described stirring apparatus is made up of the magnet rotor (13) in test glass (11) and the stirring motor (14) be fixed on bottom analysis cell (4).
7. automatic Titration acidity analysis instrument as claimed in claim 1, it is characterized in that, described chemical analysis storehouse (1) also comprises leakage alarm sensor (15), and described leakage alarm sensor (15) is connected with controller (3).
8. automatic Titration acidity analysis instrument as claimed in claim 6, it is characterized in that, described control device (2) also comprises the load module (16), output module (17), switching value module (18) and the A/D modular converter (19) that are connected with controller (3); Described load module (16) includes conditioning circuit module (20), the output terminal of described conditioning circuit module (20) is connected with A/D modular converter (19), and the input end of conditioning circuit module (20) is connected with described pH electrode (8); Described output module (17) is for controlling the work of feed liquor peristaltic pump (5), reagent pump (7) and discharge opeing peristaltic pump (6); Described switching value module is for controlling the start and stop of pinch valve (10).
9. automatic Titration acidity analysis instrument as claimed in claim 8, it is characterized in that, described controller (3) is provided with multiple RS485 interface; Described control device (2) also comprises the touch-screen (21) and wireless module (22) that are connected by RS485 interface with controller (3); Described wireless module (22) is for realizing the data communication of controller (3) and exterior terminal.
10. automatic Titration acidity analysis instrument as claimed in claim 9, it is characterized in that, described automatic titration analysis device also comprises administrative center (50), described controller (3) communicates by RS485 interface or analog quantity 4-20 signal and administrative center (50), uploads, reports to the police and upload and long-range start stop operation to realize result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625240.0U CN204925138U (en) | 2015-08-18 | 2015-08-18 | Automatic titration acidity analysis appearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625240.0U CN204925138U (en) | 2015-08-18 | 2015-08-18 | Automatic titration acidity analysis appearance |
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| CN204925138U true CN204925138U (en) | 2015-12-30 |
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| CN201520625240.0U Active CN204925138U (en) | 2015-08-18 | 2015-08-18 | Automatic titration acidity analysis appearance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806994A (en) * | 2016-05-08 | 2016-07-27 | 柴永朋 | Automatic potentiometric titrator |
| CN107894489A (en) * | 2017-12-27 | 2018-04-10 | 华测检测认证集团股份有限公司 | permanganate index automatic titration system |
| CN113670665A (en) * | 2020-05-13 | 2021-11-19 | 力合科技（湖南）股份有限公司 | Liquid caustic soda analysis system |
| CN114002986A (en) * | 2021-11-02 | 2022-02-01 | 保定创锐泵业有限公司 | Intelligent control system of explosion-proof peristaltic pump |
-
2015
- 2015-08-18 CN CN201520625240.0U patent/CN204925138U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806994A (en) * | 2016-05-08 | 2016-07-27 | 柴永朋 | Automatic potentiometric titrator |
| CN105806994B (en) * | 2016-05-08 | 2017-10-10 | 柴永朋 | Automatic potentiometric titrator |
| CN107894489A (en) * | 2017-12-27 | 2018-04-10 | 华测检测认证集团股份有限公司 | permanganate index automatic titration system |
| CN113670665A (en) * | 2020-05-13 | 2021-11-19 | 力合科技（湖南）股份有限公司 | Liquid caustic soda analysis system |
| CN113670665B (en) * | 2020-05-13 | 2024-05-31 | 力合科技（湖南）股份有限公司 | Liquid alkali analysis system |
| CN114002986A (en) * | 2021-11-02 | 2022-02-01 | 保定创锐泵业有限公司 | Intelligent control system of explosion-proof peristaltic pump |
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