CN114047309A - Method and device for solving residual liquid in pipeline of online water quality monitoring instrument and fully reacting - Google Patents
Method and device for solving residual liquid in pipeline of online water quality monitoring instrument and fully reacting Download PDFInfo
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- CN114047309A CN114047309A CN202111318540.0A CN202111318540A CN114047309A CN 114047309 A CN114047309 A CN 114047309A CN 202111318540 A CN202111318540 A CN 202111318540A CN 114047309 A CN114047309 A CN 114047309A
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- Prior art keywords
- pipeline
- peristaltic pump
- polytetrafluoroethylene
- liquid
- reaction kettle
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- 239000007788 liquid Substances 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 28
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 28
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 28
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000029087 digestion Effects 0.000 claims description 8
- 230000001603 reducing effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000004448 titration Methods 0.000 abstract description 5
- 239000012295 chemical reaction liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1893—Water using flow cells
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a method and a device for solving the problem of residual liquid in a pipeline of an online water quality monitoring instrument and fully reacting, wherein the method comprises the following steps: the device comprises a reaction kettle, a peristaltic pump arranged above the reaction kettle, a single chip microcomputer in signal connection with the peristaltic pump, and a polytetrafluoroethylene pipeline inlet and a polytetrafluoroethylene pipeline outlet pipeline which are connected with the peristaltic pump, wherein a liquid outlet of the polytetrafluoroethylene pipeline outlet pipeline is positioned on the reaction kettle; the single chip microcomputer and the signal connection are connected with a stirring unit, and (1) a set of liquid inlet pipeline with a peristaltic pump is connected before formal heating reaction. (2) During the heating reaction, air is injected into the liquid inlet pipeline by periodically rotating the peristaltic pump for a predetermined time. According to the invention, the error of subsequent accurate measurement is reduced, the accuracy of quantitative measurement such as titration is obviously improved, and the control precision of the system is favorably improved.
Description
Technical Field
The invention relates to the technical field of substance component analysis instruments, in particular to a method and a device for solving the problem of residual liquid in a pipeline of an online water quality monitoring instrument and fully reacting.
Background
The peristaltic pump in the field of on-line water quality monitoring and analyzing instruments is a common device, and pumps fluid by alternately extruding and releasing an elastic conveying hose of the pump; the equipment of connecting the peristaltic pump through polytetrafluoroethylene is often used for in unmanned on duty automatic control water quality monitoring instrument, but use and inevitably have the difference in temperature to change and lead to inhaling liquid digesting heating usually, often very high to the requirement of titration amount precision in places such as electrochemistry titration, inhaled reaction liquid can't react and directly or indirectly influence the precision of measuring, equipment has not solved the scheme well to this seemingly simple problem on the current market yet, generally solves through the check valve, but the effect is not good.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for solving the problem of residual liquid in a pipeline of an online water quality monitoring instrument and fully reacting, so that the error of subsequent accurate measurement is reduced, the accuracy of quantitative measurement such as titration is obviously improved, and the control precision of a system is favorably improved. To achieve the above objects and other advantages in accordance with the present invention, there is provided a method for solving a problem of a residual liquid in an on-line water quality monitoring instrument pipeline and fully reacting, comprising:
the device comprises a reaction kettle, a peristaltic pump arranged above the reaction kettle, a single chip microcomputer in signal connection with the peristaltic pump, and a polytetrafluoroethylene pipeline inlet and a polytetrafluoroethylene pipeline outlet pipeline which are connected with the peristaltic pump, wherein a liquid outlet of the polytetrafluoroethylene pipeline outlet pipeline is positioned on the reaction kettle;
the single chip microcomputer and the signal connection are connected with a stirring unit.
A device for solving the problems of residual liquid and full reaction of an online water quality monitoring instrument pipeline comprises the following steps:
s1, controlling the reaction kettle to heat through the single chip microcomputer, and starting stirring by the stirring unit;
s2, filling a reaction kettle with liquid to be reacted and having reducing property, and waiting for a section of liquid sucked into an outlet pipeline of a polytetrafluoroethylene pipeline due to temperature difference;
s3, opening the peristaltic pump and clockwise rotating the polytetrafluoroethylene pipeline to enable liquid in the pipeline at the outlet of the polytetrafluoroethylene pipeline to descend, wherein the inlet of the polytetrafluoroethylene pipeline is communicated with air at the moment, and the air enters the reaction kettle through the pipeline at the outlet of the polytetrafluoroethylene pipeline;
and S4, repeating the start-stop operation of the peristaltic pump for a plurality of times after the peristaltic pump and the stirring unit are suspended for a period of time, and stopping after the heating digestion reaction is finished.
Preferably, the step S3 further includes the steps of suspending the peristaltic pump and the stirring unit, repeating the steps S2 and S3 several times when the liquid further ascends, and stopping the digestion reaction after the heating is finished.
Compared with the prior art, the invention has the beneficial effects that: the residual reaction liquid in the liquid inlet pipeline caused by changes such as heating is effectively solved, so that the liquid in the reaction kettle of the online water quality detector fully reacts, the reaction kettle is used in combination with the existing digestion reaction kettle of the online water quality detector, the accuracy of quantitative measurement such as titration is obviously improved, and the control precision of the system is favorably improved.
Drawings
FIG. 1 is a schematic structural diagram of a method and a device for solving the problem of residual liquid and fully reacting in an on-line water quality monitoring instrument pipeline according to the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a device for solving the problem of residual liquid and full reaction in a pipeline of an online water quality monitoring instrument comprises: the device comprises a reaction kettle 4, a peristaltic pump 1 arranged above the reaction kettle 4, a single chip microcomputer in signal connection with the peristaltic pump 1, a polytetrafluoroethylene pipeline inlet 2 and a polytetrafluoroethylene pipeline outlet pipeline 3 which are connected with the peristaltic pump 1, wherein a liquid outlet of the polytetrafluoroethylene pipeline outlet pipeline 3 is positioned on the reaction kettle 4;
the single chip microcomputer and the signal connection are connected with a stirring unit 5.
A method for solving the problem of residual liquid in a pipeline of an online water quality monitoring instrument and fully reacting comprises the following steps:
s1, controlling the reaction kettle 4 to heat through the single chip microcomputer, and starting stirring by the stirring unit 5;
s2, filling the reaction kettle 4 with liquid to be reacted and having reducing property, and waiting for a section of liquid sucked into the polytetrafluoroethylene pipeline outlet pipeline 3 due to temperature difference;
s3, opening the peristaltic pump 1 and clockwise rotating the polytetrafluoroethylene pipeline outlet pipeline 3 to enable liquid in the polytetrafluoroethylene pipeline outlet pipeline 3 to descend, wherein the polytetrafluoroethylene pipeline inlet 2 is communicated with air at the moment, and the air can enter the reaction kettle 4 through the polytetrafluoroethylene pipeline outlet pipeline 3;
and S4, repeating the start-stop operation of the peristaltic pump 1 for a plurality of times after the peristaltic pump 1 and the stirring unit 5 are suspended for a period of time, and stopping after the heating digestion reaction is finished.
Further, the step S3 further includes the steps of stopping the peristaltic pump 1 and the stirring unit 5, repeating the steps S2 and S3 several times when the liquid further rises, and stopping the heating digestion reaction after the heating digestion reaction is finished.
The number of devices and the scale of the processes described herein are intended to simplify the description of the invention, and applications, modifications and variations of the invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (3)
1. The utility model provides a device for solving online water quality monitoring instrument pipeline raffinate and abundant reaction which characterized in that includes:
the device comprises a reaction kettle (4), a peristaltic pump (1) arranged above the reaction kettle (4), a single chip microcomputer in signal connection with the peristaltic pump (1), and a polytetrafluoroethylene pipeline inlet (2) and a polytetrafluoroethylene pipeline outlet pipeline (3) which are connected with the peristaltic pump (1), wherein a liquid outlet of the polytetrafluoroethylene pipeline outlet pipeline (3) is positioned on the reaction kettle (4);
the single chip microcomputer and the signal connection are connected with a stirring unit (5).
2. The method for solving the problem of residual liquid in the pipeline of the on-line water quality monitoring instrument and fully reacting as claimed in claim 1, which is characterized by comprising the following steps:
s1, controlling the heating of the reaction kettle (4) through a single chip microcomputer, and starting stirring by a stirring unit (5);
s2, filling the reaction kettle (4) with liquid to be reacted with reducing property, and waiting for a section of liquid sucked into the polytetrafluoroethylene pipeline outlet pipeline (3) due to temperature difference;
s3, opening the peristaltic pump (1) and clockwise rotating the polytetrafluoroethylene pipeline outlet pipeline (3) to enable liquid in the polytetrafluoroethylene pipeline outlet pipeline to descend, wherein the polytetrafluoroethylene pipeline inlet (2) is communicated with air at the moment, and the air can enter the reaction kettle (4) through the polytetrafluoroethylene pipeline outlet pipeline (3);
and S4, repeating the start-stop operation of the peristaltic pump (1) for a plurality of times after the peristaltic pump (1) and the stirring unit (5) are paused for a period of time, and stopping after the heating digestion reaction is finished.
3. The method for solving the problem of residual liquid in the pipeline of the on-line water quality monitoring instrument and fully reacting as claimed in claim 2, wherein the step S3 further comprises the steps of suspending the peristaltic pump (1) and the stirring unit (5), repeating the steps S2 and S3 several times after the liquid further rises, and stopping the reaction after the digestion reaction is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318540.0A CN114047309A (en) | 2021-11-09 | 2021-11-09 | Method and device for solving residual liquid in pipeline of online water quality monitoring instrument and fully reacting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318540.0A CN114047309A (en) | 2021-11-09 | 2021-11-09 | Method and device for solving residual liquid in pipeline of online water quality monitoring instrument and fully reacting |
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| Publication Number | Publication Date |
|---|---|
| CN114047309A true CN114047309A (en) | 2022-02-15 |
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| CN202111318540.0A Pending CN114047309A (en) | 2021-11-09 | 2021-11-09 | Method and device for solving residual liquid in pipeline of online water quality monitoring instrument and fully reacting |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001011017A (en) * | 1999-04-28 | 2001-01-16 | Nippon Shokubai Co Ltd | Method for producing esterification product and device therefor |
| CN101692049A (en) * | 2009-09-29 | 2010-04-07 | 北京安控科技股份有限公司 | Control system used for COD on-line automatic monitor |
| CN208283120U (en) * | 2018-06-21 | 2018-12-25 | 嘉兴联合化学有限公司 | A kind of reaction kettle with sampler |
| CN111521445A (en) * | 2020-06-11 | 2020-08-11 | 南京欣凯特生物科技发展有限公司 | Flow path system of automatic sample of totally-enclosed reation kettle |
| JP2021021701A (en) * | 2019-07-30 | 2021-02-18 | 東亜ディーケーケー株式会社 | Analyzer |
-
2021
- 2021-11-09 CN CN202111318540.0A patent/CN114047309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001011017A (en) * | 1999-04-28 | 2001-01-16 | Nippon Shokubai Co Ltd | Method for producing esterification product and device therefor |
| CN101692049A (en) * | 2009-09-29 | 2010-04-07 | 北京安控科技股份有限公司 | Control system used for COD on-line automatic monitor |
| CN208283120U (en) * | 2018-06-21 | 2018-12-25 | 嘉兴联合化学有限公司 | A kind of reaction kettle with sampler |
| JP2021021701A (en) * | 2019-07-30 | 2021-02-18 | 東亜ディーケーケー株式会社 | Analyzer |
| CN111521445A (en) * | 2020-06-11 | 2020-08-11 | 南京欣凯特生物科技发展有限公司 | Flow path system of automatic sample of totally-enclosed reation kettle |
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