CN202939132U - Automatic titration device - Google Patents
Automatic titration device Download PDFInfo
- Publication number
- CN202939132U CN202939132U CN 201220706758 CN201220706758U CN202939132U CN 202939132 U CN202939132 U CN 202939132U CN 201220706758 CN201220706758 CN 201220706758 CN 201220706758 U CN201220706758 U CN 201220706758U CN 202939132 U CN202939132 U CN 202939132U
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- reaction cup
- microprocessor
- photoelectric sensor
- peristaltic pump
- stirring apparatus
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Abstract
The utility model relates to an automatic titration device. The automatic titration device comprises a titrant bottle, a peristaltic pump, a titration head with a liquid drop counter, a reaction cup, a stirring device, a non-contact photoelectric sensor, a microprocessor, a keyboard and a display, wherein an opening of the titrant bottle is connected with an inlet of the peristaltic pump; an outlet of the peristaltic pump is connected with the titration head; the titration head is positioned on the top of the reaction cup; the stirring device is positioned at the bottom of the reaction cup; the microprocessor is connected with the non-contact photoelectric sensor, processes signals generated by the non-contact photoelectric sensor and outputs a result generated by the signals to the display; and the microprocessor is respectively connected with the peristaltic pump, the stirring device, the keyboard and the display and respectively controls the peristaltic pump and the stirring device.
Description
Technical field
The utility model relates to a kind of automatic titration device, especially relates to a kind of automatic titration device without buret, belongs to the surveying instrument field.
Background technology
At present, known titration method is that the buret with scale is fixed on titration platform, and titrant is injected buret, and titrated solution is injected conical flask.Control the piston of buret with left hand, make titrant dropwise splash into conical flask, the right hand shakes conical flask makes titrant fully mix with titrated solution, observe the variation of mixed solution and read the reading of buret with eyes, the volume of record titrant consumption also calculates titration results according to computing formula.The method both hands eyes and use, the operator need to pass through special training, and accuracy is not high, and reappearance is bad.
The utility model content
Technical problem to be solved in the utility model is to provide a kind ofly to be controlled with single card microcomputer, automatic gauge vs volume, and automatic stirring, and show the automatic titration device of titration net result.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of automatic titration device comprises titrant bottle, peristaltic pump, titrating head, reaction cup, stirring apparatus, non-contact photoelectric sensor, microprocessor, keyboard and display; The opening of described titrant bottle is connected with the entrance of described peristaltic pump, described wriggling delivery side of pump is connected with described titrating head, described titrating head is positioned at the top of described reaction cup, described stirring apparatus is positioned at the bottom of described reaction cup, described microprocessor is connected with described non-contact photoelectric sensor, the signal that processing produces from described non-contact photoelectric sensor, and the result that signal is produced is delivered to described display; Described microprocessor is connected respectively with described peristaltic pump and stirring apparatus, and respectively described peristaltic pump and stirring apparatus is controlled, and described microprocessor is connected with described keyboard and display respectively.
The beneficial effects of the utility model are: the utility model automatic titration device is measured the volume of titrant without buret, but by being recorded in in the process of standard substance demarcation titrant and in the process with titrant titration unknown solution, titrant splashes into the concentration of dripping the final definite unknown solution of number of reaction system.
The variation of described non-contact photoelectric sensor energy perception mixed solution in titration process with the titration system of change color, replaces the observation of human eye for solution system before and after titration end-point.
The utility model is owing to using buret, so the error that the uncertainty of the reading error of buret scale and the volume of buret own is brought can avoid, and effectively reduced error at measurment.Droplet counter is placed in the top of reaction cup, and drop splashes into reaction system and just counts, and in pipeline, bubble is on measuring not impact.
The utility model device is simple, whole robotizations of working, and easy to operate, accuracy is high, good reproducibility, measurement result is more accurately and reliably.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described titrating head comprises droplet counter, described droplet counter is arranged in the outlet and the center line between described reaction cup of described titrating head, when dripping from the outlet drop out of described titrating head, through described droplet counter, the drop break beam and realize the counting, the signal of the counting that described droplet counter will produce is delivered to described microprocessor and processes, described microprocessor is delivered to described display with result.
Further, described droplet counter is the blocking type optoelectronic switch.
Further, described non-contact photoelectric sensor comprises photoelectric sensor light source and receiver, described photoelectric sensor light source and receiver are arranged on respectively the both sides of described reaction cup, described photoelectric sensor light source and receiver are used for monitoring the change color of solution system in described reaction cup, the signal that described receiver produces the change color that monitors is delivered to described microprocessor and processes, and described microprocessor is controlled described peristaltic pump and stirring apparatus respectively according to result again.
Further, described stirring apparatus comprises rotary magnet and stirring rod, and described rotary magnet is positioned at the bottom of described reaction cup, and is fixedly connected with described reaction cup, and described stirring rod drops in described reaction cup.
Description of drawings
Fig. 1 is the theory diagram of the utility model automatic titration device;
Fig. 2 is the structural representation of the utility model automatic titration device;
In accompanying drawing, the list of parts of each label representative is as follows:
1, titrant bottle, 2, peristaltic pump, 3, titrating head, 4, droplet counter, 5, reaction cup, 6, the photoelectric sensor light source, 7, receiver, 8, stirring apparatus, 8-1, rotary magnet, 8-2, stirring rod, 9, microprocessor, 10, display, 11, keyboard.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
A kind of automatic titration device as shown in Figure 1 and Figure 2, comprises titrant bottle 1, peristaltic pump 2, titrating head 3, reaction cup 5, stirring apparatus 8, non-contact photoelectric sensor, microprocessor 9, keyboard 11 and display 10; The opening of described titrant bottle 1 is connected with the entrance of described peristaltic pump 2, the outlet of described peristaltic pump 2 is connected with described titrating head 3, described titrating head 3 is positioned at the top of described reaction cup 5, described stirring apparatus 8 is positioned at the bottom of described reaction cup 5, described microprocessor 9 is connected with described non-contact photoelectric sensor, the signal that processing produces from described non-contact photoelectric sensor, and the result that signal is produced is delivered to described display 10; Described microprocessor 9 is connected respectively with described peristaltic pump 2 and stirring apparatus 8, and respectively described peristaltic pump 2 and stirring apparatus 8 is controlled, and described microprocessor 9 is connected with described keyboard 11 and display 10 respectively.
Described titrating head 3 comprises droplet counter 4, described droplet counter 4 is arranged in the outlet and the center line between described reaction cup 5 of described titrating head 3, when dripping from the outlet drop out of described titrating head 3, through described droplet counter 4, the drop break beam and realize the counting, the signal of the counting that described droplet counter 4 will produce is delivered to described microprocessor 9 and processes, and described microprocessor 9 is delivered to described display 10 with result.
Described droplet counter 4 is the blocking type optoelectronic switch.
Described non-contact photoelectric sensor comprises photoelectric sensor light source 6 and receiver 7, described photoelectric sensor light source 6 and receiver 7 are arranged on respectively the both sides of described reaction cup 5, described photoelectric sensor light source 6 and receiver 7 are used for monitoring the change color of described reaction cup 5 interior solution systems, the signal that described receiver 7 produces the change color that monitors is delivered to described microprocessor 9 and processes, and described microprocessor 9 is controlled described peristaltic pump 2 and stirring apparatus 8 respectively according to result again.
Described stirring apparatus 8 comprises rotary magnet 8-1 and stirring rod 8-2, and described rotary magnet 8-1 is positioned at the bottom of described reaction cup 5, and is fixedly connected with described reaction cup 5, and described stirring rod 8-2 drops in described reaction cup 5.
When using, the present invention carries out according to the following steps
1. demarcate:
Accurately measuring volume is V
MarkStandard substance solution, its concentration is C
Mark, inject reaction cup 5.Splash into the indicator of method regulation.
Power-on is selected [demarcation] under display 10 promptings, input successively the volume V of standard substance solution
MarkAnd concentration C
MarkNumerical value.After confirming, device is demarcated automatically.
During to titration end-point, the solution system color has obvious variation, receiver 7 is sent to microprocessor 9 with signal, microprocessor 9 sends instruction, and peristaltic pump 2 stops, stirring apparatus 8 stops, and number of drops and the standard substance information that pre-enters store for future use after microprocessor 9 is processed.
Demarcate and finish.
2. unknown solution is measured:
Accurately measuring volume is V
UnknownSolution to be measured, its concentration is C
Unknown, inject reaction cup 5.Splash into the indicator of method regulation.
Power-on is selected [mensuration], the volume V of input solution to be measured under display 10 promptings
Not KnowNumerical value.After confirming, device is measured automatically.
During to titration end-point, the solution system color has obvious variation, and receiver 7 is sent to microprocessor 9 with signal, and microprocessor 9 sends instruction, and peristaltic pump 2 stops, stirring apparatus 8 stops, and data calculate the concentration C of solution to be measured after microprocessor 9 is processed
Unknown, and be presented on display 10 screens.
Measure and finish.
The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an automatic titration device, is characterized in that: comprise titrant bottle, peristaltic pump, titrating head, reaction cup, stirring apparatus, non-contact photoelectric sensor, microprocessor, keyboard and display; The opening of described titrant bottle is connected with the entrance of described peristaltic pump, described wriggling delivery side of pump is connected with described titrating head, described titrating head is positioned at the top of described reaction cup, described stirring apparatus is positioned at the bottom of described reaction cup, described microprocessor is connected with described non-contact photoelectric sensor, the signal that processing produces from described non-contact photoelectric sensor, and the result that signal is produced is delivered to described display; Described microprocessor is connected respectively with described peristaltic pump and stirring apparatus, and respectively described peristaltic pump and stirring apparatus is controlled, and described microprocessor is connected with described keyboard and display respectively.
2. automatic titration device according to claim 1, it is characterized in that: described titrating head comprises droplet counter, described droplet counter is arranged in the outlet and the center line between described reaction cup of described titrating head, when dripping from the outlet drop out of described titrating head, through described droplet counter, the drop break beam and realize the counting, the signal of the counting that described droplet counter will produce is delivered to described microprocessor and processes, and described microprocessor is delivered to described display with result.
3. automatic titration device according to claim 2, it is characterized in that: described droplet counter is the blocking type optoelectronic switch.
4. automatic titration device according to claim 1, it is characterized in that: described non-contact photoelectric sensor comprises photoelectric sensor light source and receiver, described photoelectric sensor light source and receiver are arranged on respectively the both sides of described reaction cup, described photoelectric sensor light source and receiver are used for monitoring the change color of solution system in described reaction cup, the signal that described receiver produces the change color that monitors is delivered to described microprocessor and processes, and described microprocessor is controlled described peristaltic pump and stirring apparatus respectively according to result again.
5. the described automatic titration device of according to claim 1 to 4 any one, it is characterized in that: described stirring apparatus comprises rotary magnet and stirring rod, described rotary magnet is positioned at the bottom of described reaction cup, and is fixedly connected with described reaction cup, and described stirring rod drops in described reaction cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706758 CN202939132U (en) | 2012-12-07 | 2012-12-07 | Automatic titration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706758 CN202939132U (en) | 2012-12-07 | 2012-12-07 | Automatic titration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939132U true CN202939132U (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220706758 Expired - Lifetime CN202939132U (en) | 2012-12-07 | 2012-12-07 | Automatic titration device |
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| Country | Link |
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| CN (1) | CN202939132U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926373A (en) * | 2014-05-06 | 2014-07-16 | 国家烟草质量监督检验中心 | Rapid titrating method for detecting acidity of glyceryl triacetate |
| CN104181157A (en) * | 2013-05-28 | 2014-12-03 | 上海沛欧分析仪器有限公司 | Real-time displaying method of detection process of azotometer color determination method |
| CN104280513A (en) * | 2014-08-07 | 2015-01-14 | 湖州科诺水处理化工原料有限公司 | Reaction tank for water sample detection |
| CN104730202A (en) * | 2015-04-13 | 2015-06-24 | 菏泽学院 | Automatic acid-base titration instrument |
| CN105301172A (en) * | 2015-11-15 | 2016-02-03 | 常州大学 | Direct-connection rotating operation-terminal sodium hydroxide calibration device of sulphur determination device |
| CN106885872A (en) * | 2015-12-15 | 2017-06-23 | 青岛果核仪器科技有限公司 | A kind of smart electronicses acid alkaline titrimeter |
| CN107091839A (en) * | 2017-06-08 | 2017-08-25 | 上海兆极环境科技有限公司 | A kind of novel laboratory on-line intelligence titrator |
| CN107782843A (en) * | 2016-08-29 | 2018-03-09 | 开平市中青环保技术服务有限公司 | A kind of titer automatic gauge method in titrimetry using photoelectric measurement mode |
| CN112858572A (en) * | 2021-01-21 | 2021-05-28 | 西安热工研究院有限公司 | High-turbidity water chloride ion online measurement system and method based on molar method |
-
2012
- 2012-12-07 CN CN 201220706758 patent/CN202939132U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181157A (en) * | 2013-05-28 | 2014-12-03 | 上海沛欧分析仪器有限公司 | Real-time displaying method of detection process of azotometer color determination method |
| CN104181157B (en) * | 2013-05-28 | 2017-03-29 | 上海沛欧分析仪器有限公司 | The real-time display method of azotometer color criterion detection process |
| CN103926373A (en) * | 2014-05-06 | 2014-07-16 | 国家烟草质量监督检验中心 | Rapid titrating method for detecting acidity of glyceryl triacetate |
| CN104280513A (en) * | 2014-08-07 | 2015-01-14 | 湖州科诺水处理化工原料有限公司 | Reaction tank for water sample detection |
| CN104280513B (en) * | 2014-08-07 | 2016-08-24 | 湖州科诺水处理化工原料有限公司 | A kind of water sample detection reaction tank |
| CN104730202A (en) * | 2015-04-13 | 2015-06-24 | 菏泽学院 | Automatic acid-base titration instrument |
| CN105301172A (en) * | 2015-11-15 | 2016-02-03 | 常州大学 | Direct-connection rotating operation-terminal sodium hydroxide calibration device of sulphur determination device |
| CN106885872A (en) * | 2015-12-15 | 2017-06-23 | 青岛果核仪器科技有限公司 | A kind of smart electronicses acid alkaline titrimeter |
| CN107782843A (en) * | 2016-08-29 | 2018-03-09 | 开平市中青环保技术服务有限公司 | A kind of titer automatic gauge method in titrimetry using photoelectric measurement mode |
| CN107091839A (en) * | 2017-06-08 | 2017-08-25 | 上海兆极环境科技有限公司 | A kind of novel laboratory on-line intelligence titrator |
| CN112858572A (en) * | 2021-01-21 | 2021-05-28 | 西安热工研究院有限公司 | High-turbidity water chloride ion online measurement system and method based on molar method |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |