CN1971264A - Automatic deoxidization, liquid feeding and stirring control device for titration solvent - Google Patents
Automatic deoxidization, liquid feeding and stirring control device for titration solvent Download PDFInfo
- Publication number
- CN1971264A CN1971264A CN 200510095670 CN200510095670A CN1971264A CN 1971264 A CN1971264 A CN 1971264A CN 200510095670 CN200510095670 CN 200510095670 CN 200510095670 A CN200510095670 A CN 200510095670A CN 1971264 A CN1971264 A CN 1971264A
- Authority
- CN
- China
- Prior art keywords
- solvent
- titration
- bottle
- solenoid valve
- quantity tube
- 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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Links
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 238000003756 stirring Methods 0.000 title claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000004448 titration Methods 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 238000003760 magnetic stirring Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000006392 deoxygenation reaction Methods 0.000 abstract description 5
- 238000000840 electrochemical analysis Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract 3
- 230000037431 insertion Effects 0.000 abstract 3
- 239000000243 solution Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
An automatic deoxidization, liquid adding and stirring control device for titration solvent belongs to the field of electrochemical analysis instruments. The device mainly comprises a solvent bottle, a quantifying pipe, a titration cell, an electromagnetic valve, a control circuit and a stirrer, wherein nitrogen with certain pressure is communicated with an insertion pipe inserted into the solvent through the electromagnetic valve, the other insertion pipe inserted into the solvent is respectively communicated with the upper port and the lower port of the quantifying pipe through a three-way electromagnetic valve, the upper port and the lower port are higher than the solvent bottle, the insertion pipe at the bottle mouth of the solvent bottle is communicated with the atmosphere through the electromagnetic valve, a detection potential needle is arranged at the top of the inner cavity of the quantifying pipe, a titration solvent outlet is arranged at the bottom of the quantifying pipe, and an overflow port is. In the electrochemical analysis, the automatic deoxygenation, liquid adding and stirring of the titration solvent are automatically realized through the program control of the control circuit, the operation is convenient and reliable, the measurement precision is high, the speed is high, and the environment and the human health are not influenced.
Description
Technical field
The present invention relates to the titration apparatus in a kind of electrochemical analytical instrument, particularly titration solvent is carried out the control device of automatically removing oxygen, liquid feeding, stirring.
Background technology
In the electrochemical analysis field, titrimetry is to use the standard solution titration detected solution, makes that two kinds of solution neutralize, precipitation, redox or complex reaction, when being titrated to terminal point, have special reaction, lead with solution temperature etc. changing as electrode potential, electricity.The consumption of titrant during according to the concentration of titrant and terminal point can be obtained the concentration of detected solution.Can the deoxygenation of titration solvent, liquid feeding, stirring directly have influence on reaction carry out smoothly, and accurately and reliably whether measurement result.
Usually, the liquid feeding of titration solvent is to be measured with measuring cup by the analyst, and error is bigger, causes test result inaccurate; The deoxygenation of titration solvent, stirring also are by manual operations, increase trouble, waste time and energy, also influence test effect.And existing titration system is an open type, and the volatilization of chemical solution can cause environmental pollution, influences health.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of easy to operate, and measuring accuracy height, speed are fast, and does not influence automatically removing oxygen, liquid feeding, the stirring control device of environment and healthy titration solvent.
Technical scheme of the present invention is: the automatically removing oxygen of titration solvent, liquid feeding, stir control device mainly by solvent bottle, quantity tube, titration cell, solenoid valve, control circuit and stirrer constitute, titration solvent is housed in the solvent bottle, the bottleneck sealing, the nitrogen that has pressure is connected through solenoid valve and the intubate of inserting in the titration solvent, another intubate of inserting in the titration solvent is connected with the upper port and the lower port of quantity tube respectively through three-way solenoid valve, on, lower port all is higher than the solvent bottle position of bottleneck, the intubate of solvent bottle bottle mouth position communicates with atmosphere through solenoid valve, top of chamber is provided with the detection potential pin that the position is higher than upper port in the quantity tube, the titration solvent outlet is arranged at the quantity tube bottom, it leads to titration cell by solenoid valve, the stirrer that is subjected to magnetic stirring apparatus control is arranged, described control circuit and each solenoid valve in the titration cell, detect the potential pin, magnetic stirring apparatus sends control signal by computer according to program software.
Further scheme is: be provided with flowrate control valve in the gas circuit of nitrogen feeding solvent bottle; The quantity tube top is provided with overflow vent, the unidirectional molecular sieve of overflow vent port aerobic.
Adopt above technical scheme, the present invention is during to the titration solvent liquid feeding, and each sampling amount is dripped under the instruction of control circuit automatically by quantity tube, and the sampling quantity data repeatability is fine, improves measuring accuracy greatly.The deoxygenation of titration solvent, to stir also be to carry out automatically under the programmed control of control circuit, easy to operate, reliable operation and efficient height.And titration solvent is in the closed system fully in this device, the leakage of can not volatilizing, and titration cell also seals, thereby can not cause the pollution of environment and the injury of health.
Description of drawings
Accompanying drawing is an annexation synoptic diagram of the present invention.
Embodiment
In conjunction with the accompanying drawings, the structure that further specifies the embodiment of the invention is formed and the course of work:
The nitrogen that has a certain pressure is through two-way electromagnetic valve 6 and fed the bottom of solvent bottles 1 after being subjected to the adjusting of flowrate control valve 5 by intubate 2, the bubbling of the inside air blowing of the titration solvent in being contained in bottle constantly, remove in the bottle and the oxygen in the solvent, this moment, three-way solenoid valve 12 was closed, two-way electromagnetic valve 16 is open-minded, and gas is discharged through intubate 4 and valve 16.Under the control of control circuit 9, after deoxygenation finishes, two-way electromagnetic valve 16 and 17 is closed, valve 12 is opened a passage, because nitrogen pressure constantly increases in the bottle, then solvent by intubate 3 in valve 12 is pressed into quantity tube 11, when solvent rose and touch detection potential pin 10, control circuit 9 self-closing valves 6 were opened valve 16, this moment, valve 12 was opened a, close b, solvent is returned in the bottle 1, when the equal solvent liquid level is lower than upper port through a of valve 12 passage by upper port 13, stop to return, then the quantity tube internal solvent forms a fixing amount (preestablishing); Open b as valve 12, close a, then solvent is returned in the bottle through the b of valve 12 passage by lower port 14, and the quantity tube internal solvent forms another fixing amount (preestablishing).Shut-off valve 12 then, open valve 17, the quantitative solvent in the quantity tube just by titration solvent outlet 15, enters titration cell 18 automatically under action of gravity, start magnetic stirring apparatus 20 drive stirrers 19 this moment solvent and detected solution are mixed, until finishing automatic titrimetry analysis.The quantity tube top is provided with overflow vent 8, and the unidirectional molecular sieve 7 of its port aerobic so that solvent liquid level continues overflow after the overshoot when arriving the potential pin, and prevents that oxygen from entering.
Claims (3)
1, a kind of automatically removing oxygen of titration solvent, liquid feeding, stir control device, it is characterized in that mainly by solvent bottle, quantity tube, titration cell, solenoid valve, control circuit and stirrer constitute, titration solvent is housed in the solvent bottle, the bottleneck sealing, the nitrogen that has pressure is connected through solenoid valve and the intubate of inserting in the titration solvent, another intubate of inserting in the titration solvent is connected with the upper port and the lower port of quantity tube respectively through three-way solenoid valve, on, lower port all is higher than the solvent bottle position of bottleneck, the intubate of solvent bottle bottle mouth position communicates with atmosphere through solenoid valve, top of chamber is provided with the detection potential pin that the position is higher than upper port in the quantity tube, the titration solvent outlet is arranged at the quantity tube bottom, it leads to titration cell by solenoid valve, the stirrer that is subjected to magnetic stirring apparatus control is arranged, described control circuit and each solenoid valve in the titration cell, detect the potential pin, magnetic stirring apparatus sends control signal by computer according to program software.
2,, it is characterized in that in the gas circuit of nitrogen feeding solvent bottle, being provided with flowrate control valve by automatically removing oxygen, liquid feeding, the stirring control device of the described titration solvent of claim 1.
3, by automatically removing oxygen, liquid feeding, the stirring control device of the described titration solvent of claim 1, it is characterized in that the quantity tube top is provided with overflow vent, the unidirectional molecular sieve of overflow vent port aerobic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510095670 CN1971264A (en) | 2005-11-24 | 2005-11-24 | Automatic deoxidization, liquid feeding and stirring control device for titration solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510095670 CN1971264A (en) | 2005-11-24 | 2005-11-24 | Automatic deoxidization, liquid feeding and stirring control device for titration solvent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1971264A true CN1971264A (en) | 2007-05-30 |
Family
ID=38112183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510095670 Pending CN1971264A (en) | 2005-11-24 | 2005-11-24 | Automatic deoxidization, liquid feeding and stirring control device for titration solvent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1971264A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698122A (en) * | 2015-03-18 | 2015-06-10 | 中国热带农业科学院热带作物品种资源研究所 | Foot-powered automatic sample-injection and zero setting titrating system and method |
| CN106769342A (en) * | 2017-03-10 | 2017-05-31 | 国家海洋技术中心 | A kind of integrated recombiner |
| CN108020546A (en) * | 2017-12-28 | 2018-05-11 | 吉林省电力科学研究院有限公司 | A kind of Chemical Cleaning and Passivation film quality check meter, test liquid and application method |
| CN114377433A (en) * | 2021-11-09 | 2022-04-22 | 苏州源展材料科技有限公司 | Ultra-dry solvent treatment device |
| CN115518577A (en) * | 2022-11-09 | 2022-12-27 | 四川倍佳新材料有限公司 | Anti-skinning polymer solution preparation system and operation method |
-
2005
- 2005-11-24 CN CN 200510095670 patent/CN1971264A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698122A (en) * | 2015-03-18 | 2015-06-10 | 中国热带农业科学院热带作物品种资源研究所 | Foot-powered automatic sample-injection and zero setting titrating system and method |
| CN106769342A (en) * | 2017-03-10 | 2017-05-31 | 国家海洋技术中心 | A kind of integrated recombiner |
| CN106769342B (en) * | 2017-03-10 | 2018-05-08 | 国家海洋技术中心 | A kind of integration recombiner |
| CN108020546A (en) * | 2017-12-28 | 2018-05-11 | 吉林省电力科学研究院有限公司 | A kind of Chemical Cleaning and Passivation film quality check meter, test liquid and application method |
| CN108020546B (en) * | 2017-12-28 | 2020-11-06 | 吉林省电力科学研究院有限公司 | Quality tester for chemical cleaning passivation film, testing solution and using method |
| CN114377433A (en) * | 2021-11-09 | 2022-04-22 | 苏州源展材料科技有限公司 | Ultra-dry solvent treatment device |
| CN115518577A (en) * | 2022-11-09 | 2022-12-27 | 四川倍佳新材料有限公司 | Anti-skinning polymer solution preparation system and operation method |
| CN115518577B (en) * | 2022-11-09 | 2024-01-23 | 四川倍佳新材料有限公司 | Anti-skinning polymer solution configuration system and operation method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |