CN210487677U - Portable online water quality analyzer - Google Patents
Portable online water quality analyzer Download PDFInfo
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- CN210487677U CN210487677U CN201920437453.9U CN201920437453U CN210487677U CN 210487677 U CN210487677 U CN 210487677U CN 201920437453 U CN201920437453 U CN 201920437453U CN 210487677 U CN210487677 U CN 210487677U
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- water quality
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000006243 chemical reaction Methods 0.000 claims abstract description 39
- 238000003411 electrode reaction Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 11
- 238000004737 colorimetric analysis Methods 0.000 claims abstract description 10
- 230000002572 peristaltic effect Effects 0.000 claims description 40
- 239000003153 chemical reaction reagent Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 27
- 239000002699 waste material Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 7
- 238000003968 anodic stripping voltammetry Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000004832 voltammetry Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 description 9
- 238000007664 blowing Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 230000029087 digestion Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 3
- 239000012086 standard solution Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a portable quality of water on-line analyzer, which comprises a housin, set up in the casing and be used for the lithium cell of whole device power supply, be used for changing the lithium cell into the alternating current the dc-to-ac converter power, be used for controlling the control circuit board of whole device operation, be used for realizing that the positive pole dissolves out potentiostat and the electrode reaction pond of voltammetry test, be used for realizing detection module and the reaction pond of colorimetry test.
Description
Technical Field
The utility model relates to a water quality analysis equipment technical field specifically is a portable quality of water on-line analyzer.
Background
China is wide in territory, no matter pollution source point location monitoring or surface watershed surface source monitoring is cut-off management, environmental protection is not only concerned with organized emission monitoring, but also concerned with unorganized emission monitoring, personnel of all levels of environmental monitoring departments are limited in compilation, water samples on site change after residents alarm and complaint are received, the site cannot be protected even in spot check, and if the field water samples are taken and tested in a detection laboratory for several days, the situation can not be quickly decided and judged. The portable online analyzer can rapidly and accurately determine results on site to give a preliminary conclusion, and then guides on-site monitoring personnel to decide whether to establish an item and take a water sample to a detection laboratory for testing.
At present, no related products exist in the market, an online analyzer is basically fixed and monitored on the site, and a portable detector needs manual sampling, reagent adding and operation testing and cannot realize full automation on the site.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable quality of water on-line analyzer to solve and provide the problem among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a portable online water quality analyzer comprises a shell, wherein a lithium battery for supplying power to the whole device, an inverter power supply for converting the lithium battery into alternating current, a control circuit board for controlling the whole device to operate, a potentiostat and an electrode reaction tank for realizing anodic stripping voltammetry testing, a detection module and a reaction tank for realizing colorimetry testing are arranged in the shell.
Preferably, a touch display screen for interface instruction input and data output and display result output is arranged on the shell.
Preferably, the shell further comprises a left peristaltic pump for providing power, a multi-way valve for realizing liquid switching, an upper two-position two-way valve, a lower two-position three-way valve, a metering ring, a reagent module, a waste liquid collecting bottle, a left photoelectric detector for realizing liquid detection, and a right photoelectric detector for realizing liquid detection.
Preferably, the shell is externally embedded with a USB interface for input and output, an external serial port, an optional micro printer and a data wireless communication module.
Preferably, the housing includes a secure transparent cover for viewing the fluid path and an openable opaque cover for facilitating subsequent line maintenance.
Preferably, the housing comprises a right peristaltic pump and the housing comprises a left two-position three-way valve and a right two-position three-way valve.
Drawings
FIG. 1 is a schematic front view of the present invention;
in the figure: 1 shell, 2 lithium batteries, 3 inverter power supplies, 4 control circuit boards, 5 potentiostats, 6 detection module, 7 electrode reaction tank, 8 reaction tank, 9 touch display screen, 10 left peristaltic pump, 11 multi-way valves, 12 reagent module, 13 left photoelectric detector, 14 right photoelectric detector, 15 two-position three-way valve, 16 two-position three-way valve down, 17 measurement ring, 18 USB interface, 19 micro printer, 20 data wireless communication module, 21 transparent cover plate, 22 opaque cover plate, 23 external serial ports, 24 waste liquid collecting tanks, 25 right peristaltic pump, 26 left two three-way valve, 27 right two three-way valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1, the present invention provides a technical solution: a portable online water quality analyzer comprises a shell 1, wherein a lithium battery 2 used for supplying power to the whole device, an inverter power supply 3 used for converting the lithium battery 2 into alternating current, a control circuit board 4 used for controlling the operation of the whole device, a potentiostat 5 and an electrode reaction tank 7 used for realizing anodic stripping voltammetry testing, a detection module 6 and a reaction tank 8 used for realizing colorimetry testing are arranged in the shell 1.
The shell 1 is provided with a touch display screen 9 for inputting instructions and outputting display data results through an interface.
The shell is also internally provided with a left peristaltic pump 10 for providing power, a multi-way valve 11 for realizing liquid switching, an upper two-position two-way valve 15, a lower two-position three-way valve 16, a metering ring 17, a reagent module 12, a waste liquid collecting bottle 24, a left photoelectric detector 13 for realizing liquid detection and a right photoelectric detector 14.
The shell 1 is externally embedded with a USB interface 18 for input and output, an external serial port 23, an optional micro printer 19 and a data wireless communication module 20.
The housing 1 comprises a secure transparent cover 21 for viewing the fluid path and an openable opaque cover 22 for facilitating subsequent line maintenance.
The housing 1 comprises a right peristaltic pump 25, the housing 1 comprising a left two-position three-way valve 26 and a right two-position three-way valve 27.
The above-mentioned portable online water quality analyzer liquid inlet system connects reagent module 12, the multi-way valve 11 and the upper two three-way valve 15 that realize the liquid path switching, the lower two three-way valve 16, the metering ring 17, the left peristaltic pump 10, the electrode reaction tank 7 and the reaction tank 8 through the PTFE pipeline and the hose pipeline to realize that water sample, pure water and reagent are sucked into the reaction tank 8 in proper order to carry out chemical reaction and discharge the waste liquid into the waste liquid collecting bottle 24. The reagent module 12 comprises reagent bottles (2-N in number), pure water bottles and bottle clamps for fixing the reagent bottles and the pure water bottles, wherein the capacity of each reagent bottle is 100ml, the capacity of each pure water bottle is 250ml, and the reagent bottles are made of corrosion-resistant PTFE (polytetrafluoroethylene), other materials and the like. Reagent module 12's reagent bottle and pure water bottle pass through the PTFE hard tube of 0.8mm diameter and link to each other through corrosion-resistant joint with each interface of multi-way valve 11 respectively, and 11 one end of multi-way valve is passed through the transparent PTFE of internal diameter 1.6mm external diameter 3.2mm and is linked to each other with right photoelectric detector 14 and measurement ring 17, and left two three-way valve common ends link to each other with left peristaltic pump 10, and the end of opening always links to each other with the end of opening always of two three-way valve 16 down, and the end of closing always links to each other with two three-.
The measurement ring 17 is between left photoelectric detector 13 and right photoelectric detector 14, left side photoelectric detector passes through the transparent PTFE of internal diameter 1.6mm external diameter 3.2mm and links to each other with left peristaltic pump 10 one end, the other end of left peristaltic pump 10 links to each other with the common port of two three-way valves 26, the end of opening is linked to each other through last two three-way valves 15 with two three-way valves 16 and the PTFE hard tube that pond module 8 was cleared up to the colorimetry in the end of two three-way valves 26 normally, the end of closing links to each other with the PTFE hard tube of two three-way valves 27 on the right side and electrode method reaction tank 7 module.
The electrode reaction system of the portable water quality on-line analyzer comprises a constant potential rectifier for providing voltage and detecting reaction current for a three-electrode system, the three-electrode system and an electrode reaction tank. The potentiostat is connected with a three-electrode system through three shielding wires, the three-electrode system comprises reference electrodes (silver/silver chloride electrodes and saturated dry mercury electrodes), auxiliary electrodes (platinum electrodes comprising platinum wire electrodes and platinum sheet electrodes) and working electrodes (gold electrodes, glassy carbon electrodes, alloy electrodes and modified electrodes), and the electrode reaction tank comprises an organic glass reaction tank, a polytetrafluoroethylene cover, a stirrer and a motor.
The portable water quality on-line analyzer data processing system comprises a control circuit board, a potentiostat, the photoelectric detection circuit and a touch screen. The output signal of the constant potential rectifier is directly connected with the interface of the touch screen, the photoelectric detection circuit is connected with the control circuit board, and the control circuit board is connected with the touch screen.
The external input and output system of the portable water quality on-line analyzer comprises a touch screen, a UBS interface, an external serial port, an optional micro printer and a data wireless communication module, wherein the data wireless communication module supports wireless transmission, communication with a GSM receiver, remote task receiving and GPS positioning. The UBS serial port can realize data copying of a U disk or a mobile hard disk, and the touch screen realizes external instruction input and interface man-machine interaction through self-contained software. An optional micro printer may enable selective printing of test data results.
The self-powered system of the portable water quality on-line analyzer is composed of a lithium battery 2 for storing direct current electric energy, an inverter power supply 3 for converting the direct current electric energy into 220V alternating current electric energy and a switch power supply, power is supplied to each circuit module respectively, and the lithium battery 2 can realize external charging and automatic switching of external power-off to a power supply mode.
The control circuit board 4 and the control chip based on the ARM core are used as a main control unit of the control system for controlling the operation of each module system of the portable water quality online analyzer, and a real-time operation system is embedded to control the self-powered system, the liquid inlet system, the electrode method reaction system, the colorimetric method reaction system, the data processing system, the external input and output system and the like to work coordinately.
1. Colorimetric method measuring module test process
The following test flow takes total phosphorus as an example, the utility model discloses colorimetric method measuring module is suitable for the survey of factors such as COD, ammonia nitrogen and total nitrogen simultaneously but not limited to.
1.1 sample injection: the upper two-position three-way valve 15 is opened to be communicated with air, the multi-way valve 11 is switched to a water sample pipeline interface, the left two-position three-way valve 26 and the lower two-position three-way valve 16 are switched to be communicated with the reaction tank 8, and meanwhile, the left peristaltic pump 10 rotates clockwise to extract a water sample. A water sample sequentially passes through a multi-way valve 11, a right photoelectric detector 14, a metering ring 17, a left photoelectric detector 13, a left peristaltic pump 10, a left two-position three-way valve 26 and a lower two-position three-way valve 16 to enter a reaction tank 8. The left peristaltic pump 10 continues to rotate clockwise according to the set metering time, 8ml of water sample is rapidly pumped into the reaction tank 8 for 16 times, and the upper two-position three-way valve 15 is closed.
1.2 adding reagent A: the multi-way valve 11 is switched to a reagent A pipeline interface in the reagent module 12, the upper two-position three-way valve 15 is opened to be communicated with air, the left two-position three-way valve 26 and the lower two-position three-way valve 16 are switched to be communicated with the reaction tank 8, and meanwhile, the left peristaltic pump 10 rotates clockwise to pump the reagent A. The reagent A sequentially passes through a multi-way valve 11, a right photoelectric detector 14, a metering ring 17, a left photoelectric detector 13, a left peristaltic pump 10, a two-position three-way valve 26 and a next two-position three-way valve 16 to enter the reaction tank 8. 1mL of the extract was extracted in 2 replicates.
1.3, air-blowing stirring: the multi-way valve 11 is switched to an air pipeline interface, and simultaneously air enters the reaction tank 8 through the multi-way valve 11, the right photoelectric detector 14, the metering ring 17, the left photoelectric detector 13, the left peristaltic pump 10, the two-position three-way valve 26 and the lower two-position three-way valve 16 in sequence to fully and uniformly mix water samples and reagents in an air blowing mode.
1.4 high-temperature digestion: and the colorimetric method detection pool is heated to a target temperature through a heating wire, and the reaction system is subjected to high-temperature digestion. After reaching the constant temperature, the mixture is cooled to room temperature. The high-temperature digestion is mainly used for digestion of water samples and promotion of chemical reactions.
1.5 into reagent B: the multi-way valve 11 is switched to a reagent B pipeline interface in the reagent module 12, the upper two-position three-way valve 15 is opened to be communicated with air, the left two-position three-way valve 26 and the lower two-position three-way valve 16 are switched to be communicated with the reaction tank 8, and meanwhile, the left peristaltic pump 10 rotates clockwise to pump the reagent B. And the reagent B sequentially passes through a multi-way valve 11, a right photoelectric detector 14, a metering ring 17, a left photoelectric detector 13, a left peristaltic pump 10, a two-position three-way valve 26 and a next two-position three-way valve 16 to enter the reaction tank 8.
1.6, air-blowing stirring: the multi-way valve 11 is switched to an air pipeline interface, and simultaneously air enters the reaction tank 8 through the multi-way valve 11, the right photoelectric detector 14, the metering ring 17, the left photoelectric detector 13, the left peristaltic pump 10, the two-position three-way valve 26 and the lower two-position three-way valve 16 in sequence to fully and uniformly mix the reagent in the reaction tank by air blowing.
1.7 into reagent C: the multi-way valve 11 is switched to a reagent B pipeline interface in the reagent module 12, the upper two-position three-way valve 15 is opened to be communicated with air, the left two-position three-way valve 26 and the lower two-position three-way valve 16 are switched to be communicated with the reaction tank 8, and meanwhile, the left peristaltic pump 10 rotates clockwise to pump the reagent C. And the reagent C sequentially passes through a multi-way valve 11, a right photoelectric detector 14, a metering ring 17, a left photoelectric detector 13, a left peristaltic pump 10, a two-position three-way valve 26 and a next two-position three-way valve 16 to enter the reaction tank 8.
1.8 air-blowing stirring: the multi-way valve 11 is switched to an air pipeline interface, and simultaneously air enters the reaction tank 8 through the multi-way valve 11, the right photoelectric detector 14, the metering ring 17, the left photoelectric detector 13, the left peristaltic pump 10, the two-position three-way valve 26 and the lower two-position three-way valve 16 in sequence to fully and uniformly mix the reagent in the reaction tank by air blowing.
1.9 standing: stopping air blowing and stirring, and standing for 5 minutes.
1.10 detection: after the reagent is fed, the water sample and the reagent generate a color reaction, and after the color reaction is stable, the high-pressure valve 15 and the lower two-position three-way valve 16 are opened to be switched to be connected with the right peristaltic pump 25, so that the reagent is pushed into the detection module 6. The detection module 6 emits light at a corresponding detection wavelength, passes through the cuvette, and then transmits a light signal to the detection module 6. The detection module 6 calculates the concentration of the substance to be detected according to the signal intensity and the calibration curve.
1.11 evacuation: after the measurement is finished, the peristaltic pump 25 rotates anticlockwise, the waste liquid flows out of the colorimetric method measuring tank 6 and sequentially enters the waste liquid collecting barrel 24 through the two-position three-way valve 16, the two-position three-way valve 26, the left peristaltic pump 10, the left photoelectric detector 13, the metering ring 17, the left photoelectric detector 13 and the multi-way valve 11.
1.12 cleaning: the upper two-position three-way valve 15 is opened to be communicated with air, the multi-way valve 11 is switched to a blank water pipeline interface, the left two-position three-way valve 26 and the lower two-position three-way valve 16 are switched to the reaction tank 8 and the reaction tank 6, and meanwhile, the left peristaltic pump 10 rotates clockwise to extract a water sample. A water sample sequentially passes through a multi-way valve 11, a right photoelectric detector 14, a metering ring 17, a left photoelectric detector 13, a left peristaltic pump 10, a two-position three-way valve 26 and a lower two-position three-way valve 16 to enter a reaction tank 8 and a reaction tank 6. The left peristaltic pump 10 and the peristaltic pump 25 continue to rotate counterclockwise according to the set metering time, and 30ml of blank water is rapidly pumped into the reaction tank 8 and the reaction tank 6.
And according to the emptying steps, emptying the cleaning waste liquid in the reaction tank 8 and the reaction tank 6. After the cleaning is finished, the measuring process is finished, and the instrument enters an online waiting state.
2. Electrode method measuring module test process
2.1 feed electrolyte: the multi-way valve 11 is switched to an electrolyte pipeline interface, meanwhile, the left two-position three-way valve 26 is switched to be communicated with the multi-way valve 11, the right two-position three-way valve 27 is switched to be communicated with the electrode reaction tank 7, the left peristaltic pump 10 rotates clockwise to extract electrolyte from the reagent module 12 to the metering ring 17, and when the left photoelectric detector 13 detects liquid, the liquid sequentially passes through the left peristaltic pump 10, the left two-position three-way valve 26, the right two-position three-way valve 27 and the electrode reaction tank 7. 1mL of electrolyte in the metering ring 17 was pumped into the electrode reaction cell 7.
2.2 electrolyte scanning: applying a certain electric potential through a potentiostat 5, beginning to enrich the tested heavy metal ions on the working electrode, driving a stirrer to stir by a motor, applying the electric potential to the working electrode at a constant speed after enriching for a certain time, dissolving out the heavy metal on the working electrode, forming peak current by electrons released in the process, and obtaining an electrolyte background scanning curve by a three-electrode system.
2.3 water inflow sample: after the pretreated water sample is cleared up, the multi-way valve 11 is switched to a water sample pipeline port, the left two-position three-way valve 26 and the right two-position three-way valve 27 and communicated to the electrode reaction tank 7, and meanwhile, the left peristaltic pump 10 rotates clockwise to extract the water sample. The water sample sequentially passes through a multi-way valve 11, a right photoelectric detector 14, a metering ring 17, a left photoelectric detector 13, a left peristaltic pump 10, a two-position three-way valve 26 and a two-position three-way valve 27 and enters an electrode reaction tank 7. The left peristaltic pump 10 continues to rotate clockwise according to the set metering time, and 20ml of the digestion water sample is pumped into the electrode reaction cell 7.
2.4 stirring: after the water sample is added, the electric motor is started to drive the stirrer to rotate at a high speed, so that the water sample and the electrolyte are uniformly mixed.
2.5 water sample scanning: and applying voltage by using a constant potential rectifier, enriching ions to be detected on the surface of the working electrode, outputting differential pulse dissolving-out voltage by using the constant potential after finishing the enrichment, dissolving out the ions to be detected enriched on the surface of the working electrode, and obtaining a scanning curve of a water sample.
2.6 adding standard solution: 0.5ml of the standard solution was metered into the electrode reaction cell 7 through the multi-way valve 11.
2.7, stirring: after the adding standard liquid is added, the electric motor is started to drive the stirrer to rotate at a high speed, so that the water sample, the electrolyte and the adding standard liquid are uniformly mixed.
2.8 adding standard solution for scanning: and scanning the dissolution peak after the labeling according to the same test process parameters of the scanned electrolyte and the scanned water sample.
2.9 water sample concentration calculation: and calculating the peak height or peak area of the electrolyte scanning dissolution peak, the water sample scanning dissolution peak after adding the water sample, and the standard addition method to obtain the ion concentration of the water sample.
2.10 evacuation: after the measurement is finished, the left peristaltic pump 10 rotates anticlockwise, waste liquid flows out of the electrode reaction tank 7 and sequentially enters the waste liquid collecting barrel 24 through the right two-position three-way valve 27, the left two-position three-way valve 26, the left peristaltic pump 10, the left photoelectric detector 13, the metering ring 17, the left photoelectric detector 14 and the multi-way valve 11.
2.11, cleaning: the multi-way valve 11 is switched to a water sample pipeline port, the two-position three- way valves 26 and 27 are switched to be communicated to the electrode reaction tank 7, and meanwhile, the left peristaltic pump 10 rotates clockwise to pump a water sample. The water sample sequentially passes through a multi-way valve 11, a right photoelectric detector 14, a metering ring 17, a left photoelectric detector 13, a left peristaltic pump 10, a left two-position three-way valve 26 and a right two-position three-way valve 27 and enters an electrode reaction tank 7. 30ml of blank water was pumped into the electrode reaction cell 7.
And according to the emptying step, emptying the cleaning waste liquid in the electrode reaction tank 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a portable quality of water on-line analyzer, includes casing (1), its characterized in that: the device comprises a shell (1), and is characterized in that a lithium battery (2) for supplying power to the whole device, an inverter power supply (3) for converting the lithium battery (2) into alternating current, a control circuit board (4) for controlling the whole device to operate, a potentiostat (5) and an electrode reaction tank (7) for realizing an anodic stripping voltammetry test, a detection module (6) and a reaction tank (8) for realizing a colorimetry test are arranged in the shell (1).
2. The portable online water quality analyzer according to claim 1, characterized in that: and a touch display screen (9) for inputting instructions and outputting display data results is arranged on the shell (1).
3. The portable online water quality analyzer according to claim 1, characterized in that: the device is characterized in that the shell (1) is also internally provided with a left peristaltic pump (10) for providing power, a multi-way valve (11) for realizing liquid switching, an upper two-position two-way valve (15), a lower two-position three-way valve (16), a metering ring (17), a reagent module (12), a waste liquid collecting bottle (24), a left photoelectric detector (13) for realizing liquid detection and a right photoelectric detector (14).
4. The portable online water quality analyzer according to claim 1, characterized in that: the shell (1) is externally embedded with a USB interface (18) for input and output, an external serial port (23), an optional micro printer (19) and a data wireless communication module (20).
5. The portable online water quality analyzer according to claim 1, characterized in that: the housing (1) comprises a safe transparent cover plate (21) for observing the liquid path and an openable opaque cover plate (22) for facilitating subsequent pipeline maintenance.
6. The portable online water quality analyzer according to claim 1, characterized in that: casing (1) includes right peristaltic pump (25), casing (1) includes two three-way valve (26) on a left side and two three-way valve (27) on a right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437453.9U CN210487677U (en) | 2019-04-02 | 2019-04-02 | Portable online water quality analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437453.9U CN210487677U (en) | 2019-04-02 | 2019-04-02 | Portable online water quality analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN210487677U true CN210487677U (en) | 2020-05-08 |
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| CN201920437453.9U Expired - Fee Related CN210487677U (en) | 2019-04-02 | 2019-04-02 | Portable online water quality analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147136A (en) * | 2020-10-19 | 2020-12-29 | 黑龙江峰向标科技有限公司 | Photoelectric colorimetric measuring device for water quality analysis and measuring method thereof |
-
2019
- 2019-04-02 CN CN201920437453.9U patent/CN210487677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147136A (en) * | 2020-10-19 | 2020-12-29 | 黑龙江峰向标科技有限公司 | Photoelectric colorimetric measuring device for water quality analysis and measuring method thereof |
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