CN114460250A - Multi-point sampling automatic portable water quality monitoring working method - Google Patents
Multi-point sampling automatic portable water quality monitoring working method Download PDFInfo
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- CN114460250A CN114460250A CN202210029499.3A CN202210029499A CN114460250A CN 114460250 A CN114460250 A CN 114460250A CN 202210029499 A CN202210029499 A CN 202210029499A CN 114460250 A CN114460250 A CN 114460250A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000005070 sampling Methods 0.000 title claims abstract description 62
- 238000012544 monitoring process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000000243 solution Substances 0.000 claims abstract description 23
- 239000002699 waste material Substances 0.000 claims abstract description 21
- 238000004448 titration Methods 0.000 claims abstract description 13
- 239000012086 standard solution Substances 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000011065 in-situ storage Methods 0.000 claims abstract description 4
- 239000012153 distilled water Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000000284 extract Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 description 9
- 238000012806 monitoring device Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003860 storage Methods 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/80—Indicating pH value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- 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
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Abstract
The invention discloses a multipoint sampling automatic portable water quality monitoring working method, which comprises the following steps: (1) the section distribution point water sample is mixed and collected through a sampling hose, a sampling head and a sampling pump, and the mixed water sample is conveyed to a rotary conical flask; (2) when the collected water sample reaches the target volume of the rotary conical flask, the horizontal rotary rod of the rotary lever automatically rotates the conical flask to be right below the No. 1 solution bottle; (3) rotating the base plate of the rotary conical flask in situ to drive a water sample to rock, and dropping a standard solution to a titration end point by controlling a screwing piston of the automatic burette; (4) rotating the conical flask to the position right below the end point solution bottle, repeating the titration operation to the end point, giving a corresponding chromatogram identification instruction by a chromatogram sensor, automatically processing titration and end point chromatogram information, and drawing a water quality concentration-time curve; (5) reaction waste liquid is rotatory to waste liquid bucket top, and the waste liquid is all poured into waste liquid bucket, and rotatory erlenmeyer flask is washd automatically, and the device gets back to initial condition.
Description
Technical Field
The invention relates to a working method for automatic multi-point sampling water quality monitoring of a surface water section, in particular to a working method which is suitable for automatic multi-point sampling water quality convenient monitoring by taking solar clean energy as power.
Background
The dynamic and accurate control of the water quality change characteristics of the water body is a technical guarantee for guaranteeing the cascade cyclic utilization of water resources, the current traditional laboratory water quality monitoring and online water quality monitoring technologies cannot meet the requirements of water body randomness, dynamic, objective and accurate monitoring, the traditional laboratory water quality monitoring is performed through procedures such as manual sampling, transportation and storage, personnel testing and the like, the monitoring process is complex to operate, the artificial influence is large, the position of the online water quality monitoring section is fixed, the data influence factors are many, the representativeness of regional water quality is not strong, and a rapid, accurate and timely monitoring method is urgently needed to meet the requirements of flexible water quality monitoring in the region.
The portable automatic multi-point sampling water quality monitoring device overcomes the defects of laboratory monitoring and on-line monitoring, integrates the advantages of the laboratory monitoring and the on-line monitoring, has the characteristics of flexible section monitoring, low power consumption, good representativeness of water samples, high automation degree, accurate and quick testing and objective monitoring data, can realize multi-point mixing automatic sampling and on-site water quality real-time monitoring of water body sections of small and medium-sized rivers, lakes, reservoirs and the like, and has complex working method and operation steps. The invention provides a working method and operation steps of multi-point sampling automatic water quality portable monitoring based on a self-designed multi-point sampling automatic water quality portable monitoring device, ensures smooth continuous work of multi-point mixed water sample collection, data transmission analysis and processing and the device, and provides guarantee for section multi-point mixed automatic sampling and on-site water quality real-time monitoring.
Disclosure of Invention
The invention provides a multi-point sampling automatic portable water quality monitoring working method aiming at the problems that on-line water quality monitoring points are fixed, data reflection is incomplete, the number of artificial influence factors for laboratory monitoring is large, the monitoring process is complicated, the current situation of water quality on the surface of a region is not mastered timely, and the working procedure and the operation steps of a multi-point sampling automatic portable water quality monitoring device based on self design are complicated. The method is matched with a multipoint sampling automatic portable water quality monitoring device, the working procedure is clear, water samples are collected in a multipoint mixing mode, data transmission processing and continuous working of the device are smooth, and guarantee is provided for realizing section multipoint sampling, flexible and timely monitoring, stable device operation, smooth data transmission and real-time and efficient result.
The invention provides a multi-point sampling automatic portable water quality monitoring working method which comprises the steps of water sample mixing and collecting, water sample position rotating, standard solution titration, water quality self-monitoring, waste liquid collecting and processing, multi-point mixed water sample collecting of a monitoring section of a surface water body, water quality monitoring data transmission, analysis and processing and multi-time continuous monitoring of a multi-point sampling automatic portable water quality monitoring device.
Furthermore, lay the sampling point according to the monitoring section condition, each sampling point department of section is placed in to every sampling hose sampling port, and the other end meets with the sampling head, starts the sampling pump, and each sampling point water sample carries out section multiple spot water sample mixture in the sampling head to carry the rotatory erlenmeyer flask with the mixed water sample in the sampling head.
Further, when the collected water sample reaches the target volume of the rotary conical flask, the No. 2 sensor transmits information to the horizontal rotating rod of the rotary lever, and the horizontal rotating rod automatically rotates the rotary conical flask to be right below the No. 1 solution bottle.
Further, after the rotary conical bottle rotates to the position, the base plate of the rotary conical bottle rotates in situ to drive a water sample in the rotary conical bottle to shake, the sensor 1 senses the screwing piston of the general automatic burette for acid and alkali No. 1, and standard solution in the solution bottle No. 1 is dripped to the rotary conical bottle.
Further, when the titration end point is reached, the sensor No. 1 feeds information back to the screwing piston of the automatic titration tube universal for acid and alkali No. 1, and the standard solution in the solution bottle No. 1 is stopped to be dripped.
Further, the horizontal rotation rod of the rotation lever 28 rotates the rotary Erlenmeyer flask right under the final solution bottle (if there are a plurality of solution bottles, the rotary Erlenmeyer flask can be sequentially rotated right under the final solution bottle), and the above operation is repeated.
Further, the chromatographic sensor gives out a corresponding chromatographic identification instruction, after the end point color appears, a dripping signal of the end point solution bottle is transmitted to the computer, and the computer sends out an instruction to automatically screw the end point acid-base universal automatic burette and screw the piston.
Further, reaction waste liquid in the rotary conical flask is brought to the upper side of the waste liquid barrel through a horizontal rotary rod of the rotary lever, the rotary conical flask is inverted by 180 degrees clockwise through a vertical rotary rod of the rotary lever, the waste liquid is totally poured into the waste liquid barrel and then turns 90 degrees anticlockwise, the horizontal rotary rod of the rotary lever drives the automatic cleaning brush to enter the rotary conical flask, the water suction pump extracts distilled water in the distilled water barrel to automatically clean the rotary conical flask, and after three times of cleaning, the device returns to the initial state.
After the first detection, the computer automatically processes the titration and end-point chromatographic information to obtain the corresponding substance concentration, and the drawing software automatically draws the water quality concentration-time curve.
Drawings
Fig. 1 is a front view of a multi-point sampling automatic portable water quality monitoring working method.
In fig. 1: 1 is a shell; 2 is a lead; the 3 is a No. 1 solution bottle; 4 is a liquid leakage hole; 5 is sensor number 1; 6 is a No. 1 acid-base universal automatic burette; 7 is a sampling elbow; 8 is a sampling pump; 9 is a sampling head; 10 is a sampling tube; 11 is a sensor 2; 12 is a rotary conical flask; 13 is a lead; 14 is a joint; 15 is a solar panel; 16 is a solar cell; 17 is a terminal solution bottle; 18 is a lead; 19 is a chromatographic sensor; 20 is a terminal acid-base universal automatic burette; 21 is a lead; 22 is a water pump; 23 is a rotating disc; 24 is an automatic cleaning brush; 25 is a distilled water barrel; 26 is a distilled water pipe; 27 is a waste liquid barrel; 28 is a swivel lever.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
The invention provides a multi-point sampling automatic portable water quality monitoring working method.
As shown in fig. 1, the system of the invention comprises a shell 1, a lead 2, a solution bottle No. 13, a liquid leakage hole 4, a sensor No. 15, an acid-base general automatic burette No. 16, a sampling elbow 7, a sampling pump 8, a sampling head 9, a sampling tube 10, a sensor No. 2 11, a rotary conical flask 12, a lead 13, a joint 14, a solar panel 15, a solar cell 16, an end point solution bottle 17, a lead 18, a chromatographic sensor 19, an end point acid-base general automatic burette 20, a lead 21, a water pump 22, a rotary disk 23, an automatic cleaning brush 24, a distilled water barrel 25, a distilled water pipe 26, a waste liquid barrel 27 and a rotary lever 28.
The working steps of the multi-point sampling automatic portable water quality monitoring working method are as follows.
(1) According to the monitoring section condition, the sampling points are arranged, each sampling hose sampling port is arranged at each sampling point of the section, the other end of each sampling hose sampling port is connected with a sampling head 9, a sampling pump 8 is started, each sampling point water sample is subjected to section multipoint water sample mixing in a sampling pipe 10, and the mixed water sample in the sampling pipe 10 is conveyed to a rotary conical flask 12.
(2) When the collected water sample reaches the target volume of the rotary conical flask, the No. 2 sensor 11 transmits information to the horizontal rotating rod of the rotating lever 28, and the horizontal rotating rod automatically rotates the rotary conical flask 12 to be right below the No. 1 solution bottle 3.
(3) The chassis of the rotary conical bottle 12 rotates in situ to drive a water sample in the rotary conical bottle 12 to shake, the sensor 15 senses the screwing piston of the acid-base general automatic burette 16, and standard solution in the solution bottle 13 is dripped to the rotary conical bottle 12.
(4) And when the titration end point is reached, the sensor 15 feeds information back to the screwing piston of the acid-base universal automatic titration tube 16 for screwing, and the standard solution in the solution bottle 13 is stopped to be dripped.
(5) The horizontal rotation rod of the rotation lever 28 rotates the rotary Erlenmeyer flask 12 right below the final solution bottle 17 (if there are a plurality of solution bottles, the rotary Erlenmeyer flask 12 can be rotated right below it in turn), and the operation of step (3) is repeated.
(6) The chromatographic sensor 19 gives a corresponding chromatographic identification instruction, when the end point color appears, the dripping signal of the end point solution bottle 17 is transmitted to the computer, and the computer sends an instruction to automatically screw the end point acid-base universal automatic burette 20 and screw the piston.
(7) Reaction waste liquid in the rotary conical flask 12 is brought to the upper side of the waste liquid barrel 27 through the horizontal rotary rod of the rotary lever 28, the rotary conical flask 12 is inverted by 180 degrees clockwise through the vertical rotary rod of the rotary lever 28, the waste liquid is totally poured into the waste liquid barrel 27 and then turns 90 degrees anticlockwise, the horizontal rotary rod of the rotary lever 28 drives the automatic cleaning brush 24 to enter the rotary conical flask 12, the water pump 22 extracts distilled water in the distilled water barrel 25 to automatically clean the rotary conical flask 12, and after the three times of cleaning, the device returns to the initial state.
After the first detection, the computer automatically processes the titration and end-point chromatographic information to obtain the corresponding substance concentration, and the drawing software automatically draws the water quality concentration-time curve.
The scope of the present invention is not limited to the description of the embodiment, but is defined by the claims.
Claims (1)
1. A multi-point sampling automatic portable water quality monitoring working method is characterized by comprising the following steps: (1) mixing and collecting water samples; (2) rotating the position of the water sample; (3) titrating a standard solution; (4) the water quality is automatically monitored; (5) collecting and treating waste liquid; the method specifically comprises the following steps:
step one, arranging sampling points according to the condition of a monitored section, arranging a sampling port of each sampling hose at each sampling point of the section, connecting the other end of each sampling hose with a sampling head, starting a sampling pump, mixing water samples of each sampling point in the sampling head to obtain a multi-point water sample of the section, and conveying the mixed water sample in the sampling head to a rotary conical flask;
step two, when the collected water sample reaches the target volume of the rotary conical flask, the No. 2 sensor transmits information to a horizontal rotating rod of a rotating lever, and the horizontal rotating rod automatically rotates the rotary conical flask to be right below the No. 1 solution bottle;
step three, after the rotary conical bottle rotates to the position, the chassis of the rotary conical bottle rotates in situ to drive a water sample in the rotary conical bottle to shake, the sensor 1 senses the screwing piston of the acid-base universal automatic burette 1, the standard solution in the solution bottle 1 is dripped to the rotary conical bottle, when the titration end point is reached, the sensor 1 feeds back information to the screwing piston of the acid-base universal automatic burette 1, and the standard solution dripping in the solution bottle 1 is stopped;
rotating the rotary conical bottle to the position right below the end-point solution bottle by rotating a horizontal rotating rod of a lever, repeating the previous titration operation until an end-point color appears, giving a corresponding chromatogram identification instruction by a chromatogram inductor, transmitting a dropwise adding signal to a computer, sending an instruction by the computer to automatically screw an end-point acid-base universal automatic burette to screw a piston, automatically processing titration and end-point chromatogram information, and drawing a water quality concentration-time curve;
and step five, the reaction waste liquid in the rotary conical flask is brought above a waste liquid barrel through a horizontal rotary rod of a rotary lever, the rotary conical flask is inverted by 180 degrees clockwise through a vertical rotary rod of the rotary lever, the waste liquid is totally poured into the waste liquid barrel and then turns 90 degrees anticlockwise, the horizontal rotary rod of the rotary lever drives an automatic cleaning brush to enter the rotary conical flask, a water suction pump extracts distilled water in a distilled water barrel to automatically clean the rotary conical flask, and after the waste liquid is cleaned for three times, the device returns to the initial state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029499.3A CN114460250A (en) | 2022-01-12 | 2022-01-12 | Multi-point sampling automatic portable water quality monitoring working method |
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| CN202210029499.3A CN114460250A (en) | 2022-01-12 | 2022-01-12 | Multi-point sampling automatic portable water quality monitoring working method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910622A (en) * | 2022-06-22 | 2022-08-16 | 清华苏州环境创新研究院 | Calibration device and method for water quality monitoring Internet of things sensor |
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| CN109959536A (en) * | 2018-09-07 | 2019-07-02 | 上海大学 | A kind of water quality sampling on-line detecting system suitable for unmanned boat |
| CN209525136U (en) * | 2018-10-18 | 2019-10-22 | 四川致景环保工程有限公司 | A kind of hybrid synchronous sampling device of sewage |
| CN213148440U (en) * | 2020-09-04 | 2021-05-07 | 陕西本来检测科技有限公司 | Environment detection sampling device |
| CN213181426U (en) * | 2020-08-28 | 2021-05-11 | 山东天弘质量检验中心有限公司 | Full-automatic titrator |
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2022
- 2022-01-12 CN CN202210029499.3A patent/CN114460250A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108508140A (en) * | 2018-06-22 | 2018-09-07 | 济南盛泰电子科技有限公司 | A kind of full-automatic permanganate index analysis system |
| CN109959536A (en) * | 2018-09-07 | 2019-07-02 | 上海大学 | A kind of water quality sampling on-line detecting system suitable for unmanned boat |
| CN209525136U (en) * | 2018-10-18 | 2019-10-22 | 四川致景环保工程有限公司 | A kind of hybrid synchronous sampling device of sewage |
| CN213181426U (en) * | 2020-08-28 | 2021-05-11 | 山东天弘质量检验中心有限公司 | Full-automatic titrator |
| CN213148440U (en) * | 2020-09-04 | 2021-05-07 | 陕西本来检测科技有限公司 | Environment detection sampling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910622A (en) * | 2022-06-22 | 2022-08-16 | 清华苏州环境创新研究院 | Calibration device and method for water quality monitoring Internet of things sensor |
| CN114910622B (en) * | 2022-06-22 | 2023-08-08 | 清华苏州环境创新研究院 | Calibration device and method for water quality monitoring Internet of things sensor |
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Application publication date: 20220510 |