CN110208354A - A kind of portable water quality in-line analyzer - Google Patents
A kind of portable water quality in-line analyzer Download PDFInfo
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- CN110208354A CN110208354A CN201910262459.1A CN201910262459A CN110208354A CN 110208354 A CN110208354 A CN 110208354A CN 201910262459 A CN201910262459 A CN 201910262459A CN 110208354 A CN110208354 A CN 110208354A
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- Prior art keywords
- way valve
- shell
- water quality
- portable water
- line analyzer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000003411 electrode reaction Methods 0.000 claims abstract description 16
- 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 8
- 238000003968 anodic stripping voltammetry Methods 0.000 claims abstract description 4
- 230000002572 peristaltic effect Effects 0.000 claims description 39
- 239000003153 chemical reaction reagent Substances 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 12
- 239000003792 electrolyte Substances 0.000 description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 description 9
- 238000007664 blowing Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 4
- 230000029087 digestion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 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
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005070 sampling Methods 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
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000011521 glass Substances 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
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 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
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000011218 segmentation Effects 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
- 239000002352 surface water Substances 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
Classifications
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/48—Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
The invention discloses a kind of portable water quality in-line analyzers, including shell, lithium battery of the setting for powering to whole device, the inverter power supply for lithium battery to be changed into alternating current, the control circuit board for being used to control whole device operation, the potentiostat for realizing anodic stripping voltammetry test and electrode reaction pond, the detection module and reaction tank tested for realizing colorimetric method in the shell.
Description
Technical field
The present invention relates to water analysis equipment technical field, specially a kind of portable water quality in-line analyzer.
Background technique
China is geographical wide, and the either monitoring of pollution sources point or the monitoring of surface water basin face source will no longer be segmentation pipe
Reason, the monitoring discharged in a organized way is no longer only focused in environmental protection, while focusing on the monitoring of uncontrollable discharge, environmental protection people from supervisory department at different levels
Member's establishment is limited, while having changed from being connected to resident's alarm and complaining to live water sample, even selective examination can not also be protected
Scene is tested such as enchashment field water sample to testing laboratory and is needed by a few days, can not high-speed decision put on record and determine result.It is described
Portable in-line analyzer can fast and accurately measurement result provides preliminary conclusion at the scene, and then instructs In-site supervision personnel
Whether decision sets up the project and water sampling is tested to testing laboratory.
Currently on the market without Related product, online analyzer is substantially and holds stationary monitoring at the scene, and portable
Detector needs manual sampling and reagent is added and operates test to cannot achieve scene automatically.
Summary of the invention
The purpose of the present invention is to provide a kind of portable water quality in-line analyzers, to solve to propose in above-mentioned background technique
Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of portable water quality in-line analyzer, including shell, setting to whole device for powering in the shell
Lithium battery, the inverter power supply for lithium battery to be changed into alternating current, be used to control whole device operation control circuit board,
For realizing the potentiostat of anodic stripping voltammetry test and electrode reaction pond, for realizing the detection module of colorimetric method test
And reaction tank.
Show that the touch of data result is shown preferably, being provided with to input instruction for interface and export on the shell
Screen.
Preferably, further including the left peristaltic pump for being provided with power, the multi-pass for realizing liquid switching in the shell
Valve, upper two two-port valves, lower two-position three-way valve and gauge rings, reagent modules and waste collection bottle, the left light for realizing liquid detecting
Photodetector and right photoelectric detector.
Preferably, the shell is externally embedded to the USB interface for input and output, external serial ports, optional microprinting
Machine, data radio communication module.
Preferably, the shell include safety transparent cover board for observing fluid path and convenient for the maintenance of subsequent pipeline can
Open opaque cover.
Preferably, the shell includes right peristaltic pump, the shell includes left two-position three-way valve and right two-position three-way valve.
Detailed description of the invention
Fig. 1 is positive structure schematic of the present invention；
In figure: 1 shell, 2 lithium batteries, 3 inverter power supplies, 4 control circuit boards, 5 potentiostats, 6 detection modules, 7 electrodes
Reaction tank, 8 reaction tanks, 9 touch display screens, 10 left 11 multiple-way valves of peristaltic pump, 12 reagent modules, 13 left photoelectric detectors, 14 right sides
Photoelectric detector, two-position three-way valve, 16 lower two-position three-way valves, 17 gauge rings, 18USB interface, 19 mini-printers, 20 numbers on 15
According to wireless communication module, 21 transparent cover plates, 22 opaque covers, 23 external serial ports, 24 waste collection buckets, 25 right peristaltic pumps, 26
Left two-position three-way valve, 27 right two-position three-way valves.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of portable water quality in-line analyzer, including shell 1,
Lithium battery 2 for powering to whole device, the inverter power supply for lithium battery 2 to be changed into alternating current are set in shell 1
3, for controlling the control circuit board 4 of whole device operation, for realizing the potentiostat 5 and electricity of anodic stripping voltammetry test
Pole reaction tank 7, the detection module 6 and reaction tank 8 tested for realizing colorimetric method.
The touch display screen 9 that instruction and output display data result are inputted for interface is provided on shell 1.
It further include the left peristaltic pump 10 for being provided with power, the multiple-way valve 11 for realizing liquid switching, upper two two-ways in shell
Valve 15, lower two-position three-way valve 16 and gauge rings 17, reagent modules 12 and waste collection bottle 24, the left photoelectricity for realizing liquid detecting
Detector 13 and right photoelectric detector 14.
Shell 1 is externally embedded to usb 18, external serial ports 23, optional mini-printer 19, data for input and output
Wireless communication module 20.
Shell 2 includes safety transparent cover board 21 for observing fluid path and convenient for the openable opaque of subsequent pipeline maintenance
Cover board 22.
Shell 2 includes right peristaltic pump 25, and shell 2 includes left two-position three-way valve 26 and right two-position three-way valve 27.
Above-mentioned portable water quality in-line analyzer feed liquor system passes through PTFE tube road and hose line for reagent modules 12, reality
The multiple-way valve 11 and upper two-position three-way valve 15, lower two-position three-way valve 16, gauge rings 17, left peristaltic pump 10, electrode of existing fluid path switching
Reaction tank 7 is connected with reaction tank 8 realizes that successively sucting reaction pond 8 chemically react and will give up by water sample, pure water and reagent
Liquid discharges waste collection bottle 24.Reagent modules 12 include reagent bottle (quantity 2-N), pure water bottle and fixating reagent bottle and pure water bottle
Bottle card, reagent bottle capacity is 100ml, and pure water bottle capacity is 250ml, and material is the materials such as corrosion resistant PTFE, other materials.
The reagent bottle and pure water bottle of reagent modules 12 are passed through with each interface of multiple-way valve 11 respectively by the PTFE hard tube of 0.8mm diameter
Corrosion-resistant connector is connected, 11 one end of the multiple-way valve PTFE and right photoelectric detector 14 transparent by internal diameter 1.6mm outer diameter 3.2mm
And gauge rings 17 are connected, left two-position three-way valve common end is connected with left peristaltic pump 10, and normally open end and lower two-position three-way valve 16 are often
Beginning is connected, and normal-closed end is connected with right two-position three-way valve 27.
For gauge rings 17 between left photoelectric detector 13 and right photoelectric detector 14, left photoelectric detector passes through internal diameter
1.6mm outer diameter 3.2mm transparent PTFE is connected with left 10 one end of peristaltic pump, the other end and two-position three-way valve 26 of left peristaltic pump 10
Common end be connected, the normally open end of two-position three-way valve 26 and the PTFE of two-position three-way valve 16 and colorimetric method digestion pool module 8 are hard
Pipe is connected by upper two-position three-way valve 15, and normal-closed end and the PTFE of 7 module of right two-position three-way valve 27 and electrode method reaction tank are hard
Pipe is connected.
Above-mentioned portable water quality in-line analyzer electrode method reaction system includes providing voltage and detection to three-electrode system
The potentiostat of kinetic current, three-electrode system, electrode reaction pond.Potentiostat and three-electrode system pass through three shielding line phases
Even, three-electrode system includes reference electrode (silver/silver chloride electrode, the dry mercury electrode of saturation), auxiliary electrode (platinum electrode, including platinum
Silk electrode, platinum plate electrode) and working electrode (gold electrode, glass-carbon electrode, alloy electrode, modified electrode), electrode reaction pond includes
Organic glass reaction tank, polytetrafluoroethylene (PTFE) lid, stirrer and motor.
Above-mentioned portable water quality in-line analyzer data processing system includes control circuit board, potentiostat, above-mentioned photoelectricity
Detection circuit, touch screen.Potentiostat output signal is directly connected with touch screen interface, photoelectric detective circuit and control circuit board
It is connected, control circuit board is connected with touch screen.
Above-mentioned portable water quality in-line analyzer external input and output system include touch screen, UBS interface, external string
Mouth, optional mini-printer, data radio communication module, data radio communication module support wireless transmission and GSM receiver
Communication, remotely receive an assignment and GPS positioning.UBS serial ports can realize that data copy record USB flash disk or mobile hard disk, and touch screen passes through included
The input of software realization external command and interface human-computer interaction.Optional mini-printer can realize selective dump test data knot
Fruit.
Above-mentioned portable water quality in-line analyzer self-contained electric system is by the lithium battery 2 of storage direct current energy and by direct current energy
It is changed into the inverter power supply 3 and Switching Power Supply composition of 220V alternating current, comes respectively each circuit module power supply, lithium battery 2
External charging can be achieved and external power-off automatically switches to powering mode.
Above-mentioned portable water quality in-line analyzer controls the control system of each modular system operation by control circuit board 4 with base
In ARM kernel control chip as main control unit, and be embedded in real time operating system control self-contained electric system, feed liquor system, electricity
The co-ordinations such as pole method reaction system, colormetric reaction system, data processing system, external input and output system.
1. colorimetric method measurement module testing process
Following testing process by taking total phosphorus as an example, colorimetric method measurement module of the present invention simultaneously be applicable in but be not limited to COD, ammonia nitrogen and
The measurement of the factors such as total nitrogen.
1.1 sample introductions: upper two-position three-way valve 15 is opened and air communication, and multiple-way valve 11 switches to water sample pipe interface, a left side two
Position three-way valve 26 and lower two-position three-way valve 16 are switched to and are connected to reaction tank 8, while left peristaltic pump 10 rotates clockwise extraction water
Sample.Water sample successively passes through multiple-way valve 11, right photoelectric detector 14, gauge rings 17, left photoelectric detector 13, left peristaltic pump 10, a left side
Two-position three-way valve 26 and lower two-position three-way valve 16 enter in reaction tank 8.Left peristaltic pump 10 continues according to the Dose times of setting
It rotates clockwise, 8ml water sample is divided 16 times and is quickly drawn into reaction tank 8, upper two-position three-way valve 15 in closing.
1.2 into reagent A: multiple-way valve 11 is switched to reagent A pipe interface in reagent modules 12, and upper two-position three-way valve 15 is opened
With air communication, left two-position three-way valve 26 and lower two-position three-way valve 16 are switched to and are connected to reaction tank 8, while left peristaltic pump 10
Rotate clockwise extraction reagent A.Reagent A successively passes through multiple-way valve 11, right photoelectric detector 14, gauge rings 17, left Photoelectric Detection
Device 13, left peristaltic pump 10, two-position three-way valve 26 and lower two-position three-way valve 16 enter in reaction tank 8.It is repeated 2 times altogether and extracts 1mL.
1.3 air-blowing stirring: multiple-way valve 11 is switched to air pipe line interface, while air successively passes through multiple-way valve 11, right light
Photodetector 14, gauge rings 17, left photoelectric detector 13, left peristaltic pump 10, two-position three-way valve 26 and lower two-position three-way valve 16
Water sample and the abundant air-blowing of reagent are uniformly mixed into reaction tank 8.
1.4 High-temperature Digestions: colorimetric determination pond is heated to target temperature by heater strip, carries out high temperature to reaction system and disappears
Solution.After reaching constant temperature time, it is cooled to room temperature.The purpose of High-temperature Digestion is mainly used for the resolution of water sample and promotes chemistry anti-
It answers.
1.5 into reagent B: multiple-way valve 11 is switched to reagent B pipe interface in reagent modules 12, and upper two-position three-way valve 15 is opened
With air communication, left two-position three-way valve 26 and lower two-position three-way valve 16 are switched to and are connected to reaction tank 8, while left peristaltic pump 10
It rotates clockwise and extracts reagent B.Reagent B successively passes through multiple-way valve 11, right photoelectric detector 14, gauge rings 17, left Photoelectric Detection
Device 13, left peristaltic pump 10, two-position three-way valve 26 and lower two-position three-way valve 16 enter in reaction tank 8.
1.6 air-blowing stirring: multiple-way valve 11 is switched to air pipe line interface, while air successively passes through multiple-way valve 11, right light
Photodetector 14, gauge rings 17, left photoelectric detector 13, left peristaltic pump 10, two-position three-way valve 26 and lower two-position three-way valve 16
The abundant air-blowing of reagent in reaction tank is uniformly mixed into reaction tank 8.
1.7 into reagent C: multiple-way valve 11 is switched to reagent B pipe interface in reagent modules 12, and upper two-position three-way valve 15 is opened
With air communication, left two-position three-way valve 26 and lower two-position three-way valve 16 are switched to and are connected to reaction tank 8, while left peristaltic pump 10
Rotate clockwise extraction reagent C.Reagent C successively passes through multiple-way valve 11, right photoelectric detector 14, gauge rings 17, left Photoelectric Detection
Device 13, left peristaltic pump 10, two-position three-way valve 26 and lower two-position three-way valve 16 enter in reaction tank 8.
1.8 air-blowing stirring: multiple-way valve 11 is switched to air pipe line interface, while air successively passes through multiple-way valve 11, right light
Photodetector 14, gauge rings 17, left photoelectric detector 13, left peristaltic pump 10, two-position three-way valve 26 and lower two-position three-way valve 16
The abundant air-blowing of reagent in reaction tank is uniformly mixed into reaction tank 8.
1.9 standing: stopping air-blowing stirring, stand 5 minutes.
1.10 detections: after into complete reagent, chromogenic reaction occurs for water sample and reagent, high in opening after chromogenic reaction is stablized
Pressure valve 15 and the switching of lower two-position three-way valve 16 are connected with right peristaltic pump 25, and reagent is pushed into detection module 6.Detection module 6 is sent out
The light of Detection wavelength is corresponded to out, passes through cuvette, and then optical signal transmissive reaches detection module 6.Detection module 6 is strong according to signal
Weak and calibration curve calculates the concentration of test substance.
1.11 emptyings: after measurement, peristaltic pump 25 rotates counterclockwise, and waste liquid is flowed out from colorimetric method measuring cell 6, successively leads to
Cross two-position three-way valve 16, two-position three-way valve 26, left peristaltic pump 10, left photoelectric detector 13, gauge rings 17, left photoelectric detector
13, multiple-way valve 11 enters in waste collection bucket 24.
1.12 cleanings: upper two-position three-way valve 15 is opened and air communication, multiple-way valve 11 switch to blank water lines interface, left
Two-position three-way valve 26 and lower two-position three-way valve 16 switch to reaction tank 8 and reaction tank 6, while left peristaltic pump 10 clockwise revolve
Turn to extract water sample.Water sample successively passes through multiple-way valve 11, right photoelectric detector 14, gauge rings 17, left photoelectric detector 13, left wriggling
Pump 10, two-position three-way valve 26 and lower two-position three-way valve 16 enter reaction tank 8 and reaction tank 6.Left peristaltic pump 10 and peristaltic pump
25 continue rotation counterclockwise according to the Dose times of setting, and 30ml blank water is quickly drawn into reaction tank 8 and reaction tank 6.
According to above-mentioned evacuation step, the cleaning waste liquid in reaction tank 8 and reaction tank 6 is emptied.After cleaning, the survey
Amount process terminates, and instrument enters online wait state.
2. electrode method measurement module testing process
2.1 into electrolyte: multiple-way valve 11 is switched to electrolyte pipe interface, at the same left two-position three-way valve 26 switch to it is more
11 connection of port valve, right two-position three-way valve 27 switch to be connected to electrode reaction pond 7, left peristaltic pump 10 is rotated clockwise from reagent mould
Electrolyte is extracted in block 12 into gauge rings 17, when left photoelectric detector 13 detects liquid, successively by left peristaltic pump 10,
Left two-position three-way valve 26, right two-position three-way valve 27, electrode reaction pond 7.Electrolyte 1mL in gauge rings 17 is drawn into electrode
In reaction tank 7.
The scanning of 2.2 electrolyte: apply certain potential by potentiostat 5, tested heavy metal ion starts working
It is enriched on electrode, motor drives stirrer stirring, and enrichment applies potential, weight after a certain period of time, to working electrode with constant speed
Metal dissolves out on the working electrode (s, and what which released electronically forms peak point current, and three-electrode system first obtains electrolyte back
Scape scanning curve.
2.3 water inlet samples: by pretreated water sample after resolution, multiple-way valve 11 switches to water sample line portals, Zuo Liangwei tri-
Port valve 26 and the switching of right two-position three-way valve 27 are connected to electrode reaction pond 7, while left peristaltic pump 10 rotates clockwise extraction water sample.
Water sample successively passes through multiple-way valve 11, right photoelectric detector 14, gauge rings 17, left photoelectric detector 13, left peristaltic pump 10, two
Triple valve 26, two-position three-way valve 27, into electrode reaction pond 7.Left peristaltic pump 10 continues up time according to the Dose times of setting
Needle rotation, the resolution water sample of 20ml is drawn into electrode reaction pond 7.
2.4 stirrings: after water sample is added, electric motor starting drives stirrer high speed rotation, mixes water sample and electrolyte
Uniformly.
The scanning of 2.5 water samples: it is same that voltage is applied by potentiostat, it is enriched with to measured ion in working electrode surface, to richness
After collection, voltage is dissolved out by constant potential output difference pulse, the Ion release to be measured of working electrode surface will be enriched in, obtained
To the scanning curve of water sample.
2.6 into mark-on liquid: measuring 0.5ml standard liquid into electrode reaction pond 7 by multiple-way valve 11.
2.7 stirrings: after mark-on liquid is added, electric motor starting drives stirrer high speed rotation, makes water sample, electrolyte, adds
Standard liquid is uniformly mixed.
2.8 mark-on liquid scanning: the dissolution according to scanning electrolyte and the same testing process parameter of water sample, after scanning mark-on
Peak.
2.9 water sample concentration calculations: by calculate electrolyte scanning dissolution peak, be added water sample after scanning dissolution peak, be added plus
The peak height or peak area at scanning dissolution peak, obtain the ion concentration of water sample using standard addition method after standard liquid.
2.10 emptyings: after measurement, the left rotation counterclockwise of peristaltic pump 10, waste liquid flows out from electrode reaction pond 7, successively leads to
Cross right two-position three-way valve 27, left two-position three-way valve 26, left peristaltic pump 10, left photoelectric detector 13, gauge rings 17, left Photoelectric Detection
Device 14, multiple-way valve 11 enter in waste collection bucket 24.
2.11 cleanings: multiple-way valve 11 switches to water sample line portals, the switching of two-position three-way valve 26 and 27 is connected to electrode reaction
Pond 7, while left peristaltic pump 10 rotates clockwise extraction water sample.Water sample successively passes through multiple-way valve 11, right photoelectric detector 14, metering
Ring 17, left photoelectric detector 13, left peristaltic pump 10, left two-position three-way valve 26, right two-position three-way valve 27, into electrode reaction pond 7
In.30ml blank water is drawn into electrode reaction pond 7.
According to above-mentioned evacuation step, the cleaning waste liquid in electrode reaction pond 7 is emptied.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of portable water quality in-line analyzer, including shell (1), it is characterised in that: be arranged in the shell (1) for giving
Lithium battery (2), the inverter power supply (3), whole for controlling for lithium battery (2) to be changed into alternating current of whole device power supply
Control circuit board (4), the potentiostat (5) for realizing anodic stripping voltammetry test and the electrode reaction pond of a device operation
(7), for realizing the detection module (6) and reaction tank (8) of colorimetric method test.
2. a kind of portable water quality in-line analyzer according to claim 1, it is characterised in that: set on the shell (1)
It is equipped with the touch display screen (9) that instruction and output display data result are inputted for interface.
3. a kind of portable water quality in-line analyzer according to claim 1, it is characterised in that: the shell (1)
In further include the left peristaltic pump (10) for being provided with power, realize liquid switching multiple-way valve (11), upper two two-port valves (15), under
Two-position three-way valve (16) and gauge rings (17), reagent modules (12) and waste collection bottle (24), the left photoelectricity for realizing liquid detecting
Detector (13) and right photoelectric detector (14).
4. a kind of portable water quality in-line analyzer according to claim 1, it is characterised in that: the shell (1) is externally embedded to
There are the USB interface (18), external serial ports (23), optional mini-printer (19), data radio communication mould for input and output
Block (20).
5. a kind of portable water quality in-line analyzer according to claim 1, it is characterised in that: the shell (2) includes
For observing the safety transparent cover board (21) of fluid path and convenient for the openable opaque cover (22) of subsequent pipeline maintenance.
6. a kind of portable water quality in-line analyzer according to claim 1, it is characterised in that: the shell (2) includes
Right peristaltic pump (25), the shell (2) include left two-position three-way valve (26) and right two-position three-way valve (27).
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| CN201910262459.1A CN110208354A (en) | 2019-04-02 | 2019-04-02 | A kind of portable water quality in-line analyzer |
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| CN201910262459.1A CN110208354A (en) | 2019-04-02 | 2019-04-02 | A kind of portable water quality in-line analyzer |
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| CN110208354A true CN110208354A (en) | 2019-09-06 |
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Cited By (1)
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|---|---|---|---|---|
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