CN220709134U - Automatic water quality monitoring device integrated with automatic mark adding and recycling device - Google Patents
Automatic water quality monitoring device integrated with automatic mark adding and recycling device Download PDFInfo
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- CN220709134U CN220709134U CN202322122620.XU CN202322122620U CN220709134U CN 220709134 U CN220709134 U CN 220709134U CN 202322122620 U CN202322122620 U CN 202322122620U CN 220709134 U CN220709134 U CN 220709134U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000012806 monitoring device Methods 0.000 title claims abstract description 16
- 238000004064 recycling Methods 0.000 title description 9
- 239000007788 liquid Substances 0.000 claims abstract description 92
- 238000011084 recovery Methods 0.000 claims abstract description 33
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 31
- 230000029087 digestion Effects 0.000 claims abstract description 25
- 238000002372 labelling Methods 0.000 claims abstract description 25
- 238000004458 analytical method Methods 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 9
- 239000012086 standard solution Substances 0.000 claims abstract description 7
- 230000004927 fusion Effects 0.000 claims 2
- 239000000523 sample Substances 0.000 description 36
- 238000012544 monitoring process Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000005587 bubbling Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- 238000012372 quality testing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003326 Quality management system Methods 0.000 description 1
- 239000012496 blank sample Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Sampling And Sample Adjustment (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The utility model provides a water quality automatic monitoring device integrated with an automatic labeling recovery device, which comprises a sample injection unit, a multi-position valve, a digestion analysis unit and a control unit, wherein the sample injection unit is connected with the multi-position valve; the multi-position valve is characterized in that a valve position end is used for connecting a standard solution, a water sample, a reagent and a digestion analysis unit, and a public end is used for connecting the sample injection unit; the sample injection unit comprises a peristaltic pump, a liquid storage device, a metering device and an air pump; the input end of the metering device, the output end of the air pump and the common end of the multi-position valve are respectively communicated through a three-way valve; the output end of the metering device is communicated with one end of the liquid storage device, the other end of the liquid storage device is communicated with the peristaltic pump, and the other end of the liquid storage device is also provided with a high-pressure valve for adjusting the pressure intensity in the liquid storage device; the control unit is respectively in control connection with the multi-position valve, the peristaltic pump, the liquid storage device, the metering device, the air pump and the high-pressure valve.
Description
Technical Field
The utility model belongs to the technical field of water quality detection, and particularly relates to a water quality automatic monitoring device integrated with an automatic labeling recovery device.
Background
The standard adding recovery is an important test basis in the current water quality monitoring, and the standard adding recovery rate can embody the rationality of the analysis method of the monitor and reflect the accuracy of monitoring data in time. The method has the advantages that the construction of a water station quality management system is enhanced and perfected, the monitoring quality and management level are improved, the daily real-time monitoring and early warning monitoring functions of the water station are effectively exerted, and the construction of a perfect data quality assurance and quality control system is necessary for ensuring the effective and reliable monitoring data.
The labeling recovery generally includes blank labeling recovery and sample labeling recovery. Blank marking and recycling: and adding quantitative standard substances into a blank sample matrix without the detected substances, and analyzing according to the processing steps of the sample to obtain the ratio of the result to the theoretical value, namely the blank marking recovery rate. And (3) sample marking and recycling: taking two identical samples, wherein one sample is added with quantitative component standard substances to be detected; and (3) analyzing the two parts simultaneously according to the same analysis step, wherein the result obtained by subtracting the result obtained by adding one part without adding the standard from the result obtained by adding one part with the standard, and the ratio of the difference value to the theoretical value of the added standard substance is the sample standard adding recovery rate. Because of the complexity of water quality components, the sample labeling recovery is commonly used in water quality detection to perform sample labeling recovery test on a sample to be tested, and the accuracy of water sample test is verified.
The measurement of the labeling recovery rate is a quality control technology which is frequently used for automatic control in a laboratory, and a theoretical formula is given for the calculation method of the quality control technology:
labeled recovery = (labeled sample measurement value-sample measurement value)/(labeled amount×100%).
The common labeling method is as follows:
the method needs professional operators to carry out manual marking, and has higher requirements on the operators. For example, CN217878496U is a water quality detection standard adding recovery device, which is convenient for sampling and recovery of operators, but is inconvenient for on-site operation on-line monitoring instrument to detect the standard adding recovery rate;
and an independent mark adding and recycling device is needed to be additionally arranged in the water station for each detection device. For example, CN215768554U is used for water quality testing and adds the mark device, can realize the purpose of automatic mark test, but this mode needs to reserve the mounted position that adds mark recovery unit alone, has certain limitation to miniature water station.
The automatic standard adding and recycling of the monitor is realized by adding the standard adding and recycling device independently in the current water quality monitoring, and the mode not only increases the field installation workload, but also is inconvenient for the monitor system to control the standard adding and recycling device and calculate and analyze the standard adding and recycling rate.
Disclosure of Invention
In order to solve the above problems, it is necessary to provide an automatic water quality monitoring device which is integrated with an automatic labeling recovery device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a water quality automatic monitoring device integrated with an automatic labeling recovery device, which comprises a sample injection unit, a multi-position valve, a digestion analysis unit and a control unit, wherein the sample injection unit is connected with the multi-position valve;
the multi-position valve is characterized in that a valve position end is used for connecting a standard solution, a water sample, a reagent and a digestion analysis unit, and a public end is used for connecting the sample injection unit;
the sample injection unit comprises a peristaltic pump, a liquid storage device, a metering device and an air pump;
the input end of the metering device, the output end of the air pump and the common end of the multi-position valve are respectively communicated through a three-way valve;
the output end of the metering device is communicated with one end of the liquid storage device, the other end of the liquid storage device is communicated with the peristaltic pump, and the other end of the liquid storage device is also provided with a high-pressure valve for adjusting the pressure intensity in the liquid storage device;
the control unit is respectively in control connection with the multi-position valve, the peristaltic pump, the liquid storage device, the metering device, the air pump and the high-pressure valve.
Based on the above, a liquid level sensor III electrically connected with the control unit is arranged in the liquid storage device.
Based on the above, the metering device is internally provided with a liquid level sensor I and a liquid level sensor II which are electrically connected with the control unit.
Compared with the prior art, the utility model has substantial characteristics and progress, and concretely comprises the following steps: the utility model provides a water quality automatic monitoring device integrated with an automatic labeling recovery device, which is characterized in that an air pump and a high-pressure valve are added on the basis of the configuration of a conventional monitoring device, and a sample injection unit of the monitoring device is shared, so that the full-automatic labeling recovery of the monitoring device is realized on the premise of using the least parts.
Drawings
FIG. 1 is a schematic block diagram of an automatic water quality monitoring apparatus according to the present utility model.
Fig. 2 is a schematic diagram of the extracting standard solution in the standard adding recovery process of the present utility model.
Fig. 3 is a schematic diagram of extracting a liquid to be measured in the labeling recovery process of the present utility model.
Fig. 4 is a schematic diagram of the mixed labeling solution to be tested in the labeling recovery process of the present utility model.
FIG. 5 is a schematic diagram of the removal of a test solution into a digestion analysis unit in the labeling recovery process of the present utility model.
Fig. 6 is a schematic diagram of digestion analysis of a sample to be tested in the labeling recovery process of the present utility model.
In the figure: 1. a sample introduction unit; 2. a peristaltic pump; 3. a liquid storage device; 4. a high pressure valve; 5. a liquid level sensor III; 6. a liquid level sensor IV; 7. a three-way valve; 8. a metering device; 9. a liquid level sensor I; 10. a liquid level sensor II; 11. an air pump; 12. a multi-position valve; 13. and (5) digestion analysis units.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
As shown in fig. 1, the embodiment provides an automatic water quality monitoring device integrated with an automatic labeling recovery device, which comprises a sample injection unit 1, a multi-position valve 12, a digestion analysis unit 13 and a control unit;
the multi-position valve 12 is provided with a valve position end for connecting a standard solution, a water sample, a reagent and a digestion analysis unit 13, and a public end for connecting the sample injection unit 1;
the sample injection unit 1 comprises a peristaltic pump 2, a liquid storage device 3, a metering device 8 and an air pump 11;
the input end of the metering device 8, the output end of the air pump 11 and the common end of the multi-position valve 12 are respectively communicated through a three-way valve 7;
the output end of the metering device 8 is communicated with one end of the liquid storage device 3, the other end of the liquid storage device 3 is communicated with the peristaltic pump 2, and the other end of the liquid storage device 3 is also provided with a high-pressure valve 4 for adjusting the pressure in the liquid storage device 3;
a liquid level sensor III 5 and a liquid level sensor IV 6 which are electrically connected with the control unit are arranged in the liquid storage device 3, wherein the liquid level sensor III 5 is used for detecting the liquid level III, and the liquid level sensor IV 6 is used for adjusting the pump speed of the peristaltic pump 2 in advance according to the position of the liquid level so as to ensure the accuracy of pumping quantity;
the metering device 8 is internally provided with a liquid level sensor I9 and a liquid level sensor II 10 which are electrically connected with the control unit and are respectively used for detecting the liquid level I and the liquid level II;
the control unit is respectively connected with the multi-position valve 12, the peristaltic pump 2, the liquid storage device 3, the metering device 8, the air pump 11 and the high-pressure valve 4 in a control mode.
The working principle of the utility model is as follows:
the automatic water quality monitoring device of the embodiment comprises two parts, wherein one part is a device for performing a normal water quality testing process, and the other part is a device for performing a labeling recovery process.
The following parts are involved in normal water quality testing: peristaltic pump 2, reservoir 3, metering device 8, multi-position valve 12 and digestion analysis unit 13, wherein,
peristaltic pump 2: for drawing liquid and discharging liquid (peristaltic pump 2 is rotated forward to draw liquid and rotated backward to discharge liquid);
liquid storage device 3: cleaning a digestion tank for extracting and discharging a large amount of pure water for the digestion analysis unit 13;
metering device 8: the peristaltic pump 2 is used for controlling the pump speed and matching with a liquid level sensor arranged on the peristaltic pump to finish the metering and liquid feeding of water samples and reagents;
multi-position valve 12: for connecting the standard solution, the water sample, the reagent and the digestion analysis unit 13;
digestion analysis unit 13: after reagent and water sample injection are completed, digestion reaction is carried out under the action of certain temperature and pressure, and a signal is acquired through a control unit and then analyzed to obtain the result value of the water sample to be detected.
In the normal water quality test, the quantitative sample and the standard liquid of the metering device 8 are sequentially extracted under the action of the peristaltic pump 2 through switching of the multi-position valve 12 and are reversely pushed into the digestion analysis unit 13, and finally, the water sample test result is calculated through the control unit. The liquid storage device 3 mainly plays a cleaning role, and because the total liquid amount which can be stored by the metering device 8 is limited, the clear water amount required in the cleaning digestion tank is relatively large, the metering device 8 can complete the cleaning process only by repeatedly extracting and discharging pure water and cleaning liquid for many times, the problem can be solved after the liquid storage device 3 is added, the testing process can be simplified, and meanwhile, the testing period is shortened.
The labeling recovery flow involves the following parts: peristaltic pump 2, reservoir 3, metering device 8, air pump 11, multi-position valve 12 and high pressure valve 4.
Peristaltic pump 2: for drawing in liquid and discharging liquid;
liquid storage device 3: the method is used for quantitatively acquiring a water sample and placing mixed standard liquid;
metering device 8: the peristaltic pump 2 is used for controlling the pump speed and matching with a liquid level sensor arranged on the peristaltic pump to finish the acquisition of standard mother liquor;
air pump 11: the device is used for blowing the standard liquid into the liquid storage device 3, avoiding error caused by the hanging wall of the standard liquid, and simultaneously, is also used for bubbling and stirring the mixed sample in the liquid storage device 3.
The labeling recovery flow of the automatic water quality monitoring device comprises the following steps:
extracting a standard solution: as shown in fig. 2, the multi-position valve 12 is switched to a position of a high-concentration to-be-diluted standard liquid bottle, the metering device 8 is connected with the high-concentration to-be-diluted standard liquid bottle through the public end of the multi-position valve 12 (the current high-pressure valve 4 is in a closed state, the three-way valve 7 is in a state that the metering device 8 is communicated with the multi-position valve 12), the peristaltic pump 2 is opened to rotate positively, a small amount of standard liquid is accurately pumped to the metering device 8, and then the peristaltic pump 2 is closed;
the three-way valve 7 is opened to switch on and switch off the air pump 11 and the metering device 8, and simultaneously the air pump 11 and the high-pressure valve 7 are opened to blow the standard liquid in the metering device 8 into the liquid storage device 3.
Extracting a liquid to be detected (pure water or water sample): as shown in fig. 3, the high-pressure valve 4 and the air pump 11 are closed, the valve port of the multi-position valve 12 is switched to a pure water valve port or a water sample valve port (blank adding standard is switched to a pure water valve port and water sample adding standard is switched to a water sample valve port), then the three-way valve 7 is switched to the metering device 8 to be communicated with the multi-position valve 12, the peristaltic pump 2 positively rotates to extract a certain amount of liquid to be measured until the liquid level reaches the liquid level III of the liquid storage device 3, and the peristaltic pump 2 stops rotating.
Mixing the marked liquid to be measured: as shown in fig. 4, the three-way valve 7 is switched to connect the metering device 8 with the air pump 11, opening the air pump 11, and simultaneously opening the high-pressure valve 4. The liquid to be measured is mixed by bubbling through the air pump 11, after the bubbling is performed for about 3 minutes, the liquid in the liquid storage device 3 is ensured to be uniformly mixed, the air pump 11 and the high-pressure valve 4 are closed, and the liquid is kept stand.
Discharging the liquid to be tested into a digestion analysis unit: as shown in fig. 5, the multi-position valve 12 is switched to the waste liquid port, the three-way valve 7 is switched to the metering device 8 to be communicated with the multi-position valve 12, the peristaltic pump 2 is reversed to discharge the redundant liquid to the waste liquid port, when the residual liquid to be measured reaches the liquid level i of the metering device 8, the peristaltic pump 2 is closed, the valve port of the multi-position valve 12 is switched to the digestion analysis unit 13, and the residual liquid to be measured is discharged into the digestion analysis unit 13.
Carrying out digestion analysis on a sample to be tested: as shown in fig. 6, the peristaltic pump 2 and the metering device 8 accurately extract the reagent, and quantitatively and sequentially discharge the reagent into the digestion analysis unit 13, so that the test result is obtained after conventional digestion and analysis are performed on the sample to be tested.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (3)
1. The automatic water quality monitoring device integrating the automatic labeling recovery device is characterized by comprising a sample injection unit, a multi-position valve, a digestion analysis unit and a control unit;
the multi-position valve is characterized in that a valve position end is used for connecting a standard solution, a water sample, a reagent and a digestion analysis unit, and a public end is used for connecting the sample injection unit;
the sample injection unit comprises a peristaltic pump, a liquid storage device, a metering device and an air pump;
the input end of the metering device, the output end of the air pump and the common end of the multi-position valve are respectively communicated through a three-way valve;
the output end of the metering device is communicated with one end of the liquid storage device, the other end of the liquid storage device is communicated with the peristaltic pump, and the other end of the liquid storage device is also provided with a high-pressure valve for adjusting the pressure intensity in the liquid storage device;
the control unit is respectively in control connection with the multi-position valve, the peristaltic pump, the liquid storage device, the metering device, the air pump and the high-pressure valve.
2. The automatic water quality monitoring device of the fusion automatic labeling recovery device of claim 1, wherein: the liquid storage device is internally provided with a liquid level sensor III which is electrically connected with the control unit.
3. The automatic water quality monitoring device of the fusion automatic labeling recovery device of claim 1, wherein: the metering device is internally provided with a liquid level sensor I and a liquid level sensor II which are electrically connected with the control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322122620.XU CN220709134U (en) | 2023-08-08 | 2023-08-08 | Automatic water quality monitoring device integrated with automatic mark adding and recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322122620.XU CN220709134U (en) | 2023-08-08 | 2023-08-08 | Automatic water quality monitoring device integrated with automatic mark adding and recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220709134U true CN220709134U (en) | 2024-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322122620.XU Active CN220709134U (en) | 2023-08-08 | 2023-08-08 | Automatic water quality monitoring device integrated with automatic mark adding and recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220709134U (en) |
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2023
- 2023-08-08 CN CN202322122620.XU patent/CN220709134U/en active Active
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