CN203275361U - Instrument for analyzing heavy metal concentration of water - Google Patents
Instrument for analyzing heavy metal concentration of water Download PDFInfo
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- CN203275361U CN203275361U CN 201320274996 CN201320274996U CN203275361U CN 203275361 U CN203275361 U CN 203275361U CN 201320274996 CN201320274996 CN 201320274996 CN 201320274996 U CN201320274996 U CN 201320274996U CN 203275361 U CN203275361 U CN 203275361U
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Abstract
The utility model relates to a water quality analyzing instrument, and particularly relates to an instrument for analyzing the heavy metal concentration of water. The instrument for analyzing the heavy metal concentration of water disclosed by the utility model is a water sample pretreatment module and used for circular digestion, a water sample is pumped into a digestion cup by a first pump P1, then pumped into an ultraviolet digester by a third pump P3, and returned to the digestion cup by a pipe, thereby realizing a circular digestion process; and the instrument is also a measuring module, a stirrer below a measuring cup carries out stirring, so that a reaction is fuller; a fourth pump P4, a fifth pump P5 and a sixth pump P6 respectively pump extracts water, film coating liquid and electrolyte to react with a standard solution extracted by a seventh pump P7 in the process of calibrating, and react with the digested water sample extracted by an eighth pump P8 in the process of measuring, so that through the potential changes of three measuring electrodes 31, an operation of comparing is performed, thereby realizing the measurement of the water sample. The instrument disclosed by the utility model is used for detecting the heavy metal concentration of a water sample.
Description
Technical field
The utility model relates to Water Test Kits, relates in particular to the water quality detection equipment of the heavy metal concentration analysis of water sample.
Background technology
The measurement of the heavy metal concentration in water sample is the wherein important project in water quality detection, is used for the degree of reflection industrial pollution.The mode that the detection of water quality heavy metal is taked usually is: water sampling send the laboratory, use atomic absorption spectrography (AAS), atomic fluorescence spectrometry to detect, but cost is high, efficient is low, complicated operation, and the secondary pollution meeting that causes of water sample course of conveying affects the objectivity of testing result.
Therefore, utilize the water quality heavy metal concentration analyser of the portability of anodic stripping voltammetry to be suggested.The patent documentation of publication number 102183668A discloses a kind of heavy metal online analyzer.Yet the heavy metals measurement of this heavy metal online analyzer is comprehensive not and precision is not good enough.
The utility model content
Therefore, the utility model proposes a kind of the detection comprehensively and the high water quality heavy metal concentration analyser of accuracy of detection, this apparatus structure is simple and reliable, required maintenance is little, and more accurate to metering and the conveying of reagent.
the technical solution of the utility model is: water quality heavy metal concentration analyser, specifically: water sample bottle and hydrochloric acid solution bottle are connected to the first pump and the second pump by pipeline respectively, the first pump and the second pump are cleared up cup by the first main delivery pipe access, clear up cup and be connected to the 3rd pump by the first suction pipe and the pipeline that is connected with this first suction pipe, the 3rd pump is connected to the input end of ultraviolet digestion device by pipeline, the output terminal of ultraviolet ray digestion device is cleared up cup by the pipeline access, the lower end of clearing up cup is provided with a waste liquid water delivering orifice, this waste liquid water delivering orifice is connected to the first electrically-controlled valve by pipeline, the first electrically-controlled valve is connected to the first waste collection bottle by pipeline, clear up cup and also be connected to the 8th pump by the second suction pipe and the pipeline that is connected with this second suction pipe, mark liquid bottle is connected to the 7th pump by pipeline, the 7th pump and the 8th pump are by the second main delivery pipe access measuring cup, be provided with potential electrode in measuring cup, the bottom of measuring cup also is provided with stirrer, the lower end of measuring cup is provided with a waste liquid water delivering orifice, this waste liquid water delivering orifice is connected to the second electrically-controlled valve by pipeline, the second electrically-controlled valve is connected to the second waste collection bottle by pipeline, distilled water bottle, coating liquid bottle and electrolytic solution bottle are connected to the 4th pump by pipeline respectively, the 5th pump and the 6th pump, the 4th pump, the 5th pump and the 6th pump are by the 3rd main delivery pipe access measuring cup, described the first pump, the second pump, the 3rd pump, the 4th pump, the 5th pump, the 6th pump, the 7th pump, the 8th pump, the first electrically-controlled valve, the second electrically-controlled valve, the ultraviolet ray digestion device, potential electrode and stirrer all are electrically connected on the port of PLC unit.
Preferably, described upper end of clearing up cup also is provided with the overflow outlet.
Preferably, the upper end of described measuring cup also is provided with the overflow outlet.
Preferably, described stirrer is magnetic stirrer.
Preferably, described the first pump, the second pump, the 3rd pump, the 4th pump, the 5th pump, the 6th pump, the 7th pump and the 8th pump are peristaltic pumps.
Preferably, also comprise touch screen unit and a control panel, described touch screen unit is electrically connected on control panel, and described PLC unit also is electrically connected on control panel.
Water quality heavy metal concentration analyser of the present utility model has the following advantages: adopt to adopt anodic stripping voltammetry (ASV) method to realize that heavy metal concentration measures, the simple and Measurement sensibility of its one-piece construction; Adopted metering and the conveying of peristaltic pump as reagent and water sample (comprising correcting fluid), the metering reproducibility error is extremely low; Adopt heat block and flow cell principle, can realize continuous automatic measurement, improve Measurement and analysis efficient; Realize that PLC controls and touch screen unit touch operation by the PLC unit, guarantee to the control of various functions and with operator's dialogue.
Description of drawings
Fig. 1 is an example structure schematic diagram of water quality heavy metal concentration analyser of the present utility model.
Embodiment
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
consult shown in Figure 1, the water quality heavy metal concentration analyser of this embodiment, specifically: water sample bottle 12 and hydrochloric acid solution bottle 11 are connected to the first pump P1 and the second pump P2 by pipeline respectively, the first pump P1 and the second pump P2 clear up cup 2 by the first main delivery pipe access, clear up cup 2 and be connected to the 3rd pump P3 by the first suction pipe 21 and the pipeline that is connected with this first suction pipe 21, the 3rd pump P3 is connected to the input end of ultraviolet digestion device 4 by pipeline, the output terminal of ultraviolet ray digestion device 4 accesses by pipeline clears up cup 2, the lower end of clearing up cup 2 is provided with a waste liquid water delivering orifice 202, this waste liquid water delivering orifice 202 is connected to the first electrically-controlled valve F1 by pipeline, the first electrically-controlled valve F1 is connected to the first waste collection bottle 17 by pipeline, clear up cup 2 and also be connected to the 8th pump P8 by the second suction pipe 22 and the pipeline that is connected with this second suction pipe 22, mark liquid bottle 13 is connected to the 7th pump P7 by pipeline, the 7th pump P7 and the 8th pump P8 are by the second main delivery pipe access measuring cup 3, be provided with potential electrode 31 in measuring cup 3, the bottom of measuring cup 3 also is provided with stirrer 32, the lower end of measuring cup 3 is provided with a waste liquid water delivering orifice 302, this waste liquid water delivering orifice 302 is connected to the second electrically-controlled valve F2 by pipeline, the second electrically-controlled valve F2 is connected to the second waste collection bottle 18 by pipeline, distilled water bottle 14, coating liquid bottle 15 and electrolytic solution bottle 16 are connected to the 4th pump P4 by pipeline respectively, the 5th pump P5 and the 6th pump P6, the 4th pump P4, the 5th pump P5 and the 6th pump P6 are by the 3rd main delivery pipe access measuring cup 3, described the first pump P1, the second pump P2, the 3rd pump P3, the 4th pump P4, the 5th pump P5, the 6th pump P6, the 7th pump P7, the 8th pump P8, the first electrically-controlled valve F1, the second electrically-controlled valve F2, ultraviolet ray digestion device 4, potential electrode 31 and stirrer 32 all are electrically connected on the port of PLC unit (scheming not shown).
Preferably, described upper end of clearing up cup 2 also is provided with overflow outlet 201, to avoid clearing up cup 2 interior liquid overfill.The upper end of described measuring cup 3 also is provided with overflow outlet 301, to avoid clearing up cup 3 interior liquid overfill.
Preferably, described stirrer 32 is magnetic stirrers, can realize fast stirring to the uniform liquid in measuring cup 3, and can heat liquid simultaneously.
Preferably, described the first pump P1, the second pump P2, the 3rd pump P3, the 4th pump P4, the 5th pump P5, the 6th pump P6, the 7th pump P7 and the 8th pump P8 adopt peristaltic pump, have higher metering and delivery precision, thereby make the metering reproducibility error extremely low.
Preferably, also comprise touch screen unit and a control panel, described touch screen unit is electrically connected on control panel, and described PLC unit also is electrically connected on control panel, realize that PLC controls and touch screen unit touch operation by the PLC unit, guarantee to the control of various functions and with operator's dialogue.
The water quality heavy metal concentration analyser of this embodiment is to adopt anodic stripping voltammetry (ASV), reduction potential is put on working electrode, the evolution or deposition potential that surpasses certain metal ion species when electrode potential, in solution, analyzed metallic ion is reduced to metal plating in working electrode surface, the electromotive force application time is longer, restore the metal that is plated on electrode surface (being called as " deposition " or " accumulation " process) more, when enough metals are plated on working electrode surface, increase electromotive force to working electrode with constant speed, metal will stripping on electrode (oxidation).For given electrolyte solution and electrode, every kind of metal has specific oxidation or stripping response voltage, and the electronics that this process discharges forms peak point current.Measure this electric current and record corresponding electromotive force, identify metal species according to the potential value that oxidation occurs, and measure simultaneously various metals by the difference of their oxidation potentials.The calculating of sample ions concentration is to draw by calculating electric current peak height or area and comparing with the standard solution under the same terms.
The left-hand component of the water quality heavy metal concentration analyser of this embodiment shown in Fig. 1 is a water sample pretreatment module, does the effect that circulation is cleared up.Water sample is drawn into by the first pump P1 clears up cup 2, then pumps into ultraviolet digestion device 4 by the 3rd pump P3, carries by ultra violet lamp and the solenoid of ultraviolet digestion device 4, then is got back to by pipeline and clear up in cup 2, thereby realize the process that circulation is cleared up.The right-hand component of the water quality heavy metal concentration analyser of this embodiment is measurement module, and the stirrer 32 under measuring cup 3 stirs (electromagnetic agitation), makes reaction more abundant; And the 4th pump P4, the 5th pump P5, the 6th pump P6 extract respectively distilled water, coating liquid, electrolytic solution, the mark liquid that extracts with the 7th pump P7 in when calibration reacts, the water sample that the process that extracts with the 8th pump P8 when measuring is cleared up reacts, thereby the potential change by three potential electrode 31, compare, realize the measurement to water sample.The PLC unit of the water quality heavy metal concentration analyser of this embodiment carries out action control to the first pump P1, the second pump P2, the 3rd pump P3, the 4th pump P4, the 5th pump P5, the 6th pump P6, the 7th pump P7, the 8th pump P8 and the first electrically-controlled valve F1, the second electrically-controlled valve F2, ultraviolet digestion device 4 and stirrer 32 are carried out open and close control, output potential variable signal to potential electrode 31 gathers, and demonstration, the control of touch screen unit are processed.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (6)
1. water quality heavy metal concentration analyser, it is characterized in that: water sample bottle and hydrochloric acid solution bottle are connected to the first pump and the second pump by pipeline respectively, the first pump and the second pump are cleared up cup by the first main delivery pipe access, clear up cup and be connected to the 3rd pump by the first suction pipe and the pipeline that is connected with this first suction pipe, the 3rd pump is connected to the input end of ultraviolet digestion device by pipeline, the output terminal of ultraviolet ray digestion device is cleared up cup by the pipeline access, the lower end of clearing up cup is provided with a waste liquid water delivering orifice, this waste liquid water delivering orifice is connected to the first electrically-controlled valve by pipeline, the first electrically-controlled valve is connected to the first waste collection bottle by pipeline, clear up cup and also be connected to the 8th pump by the second suction pipe and the pipeline that is connected with this second suction pipe, mark liquid bottle is connected to the 7th pump by pipeline, the 7th pump and the 8th pump are by the second main delivery pipe access measuring cup, be provided with potential electrode in measuring cup, the bottom of measuring cup also is provided with stirrer, the lower end of measuring cup is provided with a waste liquid water delivering orifice, this waste liquid water delivering orifice is connected to the second electrically-controlled valve by pipeline, the second electrically-controlled valve is connected to the second waste collection bottle by pipeline, distilled water bottle, coating liquid bottle and electrolytic solution bottle are connected to the 4th pump by pipeline respectively, the 5th pump and the 6th pump, the 4th pump, the 5th pump and the 6th pump are by the 3rd main delivery pipe access measuring cup, described the first pump, the second pump, the 3rd pump, the 4th pump, the 5th pump, the 6th pump, the 7th pump, the 8th pump, the first electrically-controlled valve, the second electrically-controlled valve, the ultraviolet ray digestion device, potential electrode and stirrer all are electrically connected on the port of PLC unit.
2. water quality heavy metal concentration analyser according to claim 1 is characterized in that: described upper end of clearing up cup also is provided with the overflow outlet.
3. water quality heavy metal concentration analyser according to claim 1 is characterized in that: the upper end of described measuring cup also is provided with the overflow outlet.
4. according to claim 1 and 2 or 3 described water quality heavy metal concentration analysers, it is characterized in that: described stirrer is magnetic stirrer.
5. according to claim 1 and 2 or 3 described water quality heavy metal concentration analysers, it is characterized in that: described the first pump, the second pump, the 3rd pump, the 4th pump, the 5th pump, the 6th pump, the 7th pump and the 8th pump are peristaltic pumps.
6. according to claim 1 and 2 or 3 described water quality heavy metal concentration analysers is characterized in that: also comprise touch screen unit and a control panel, described touch screen unit is electrically connected on control panel, and described PLC unit also is electrically connected on control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274996 CN203275361U (en) | 2013-05-20 | 2013-05-20 | Instrument for analyzing heavy metal concentration of water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274996 CN203275361U (en) | 2013-05-20 | 2013-05-20 | Instrument for analyzing heavy metal concentration of water |
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| Publication Number | Publication Date |
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| CN203275361U true CN203275361U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320274996 Expired - Fee Related CN203275361U (en) | 2013-05-20 | 2013-05-20 | Instrument for analyzing heavy metal concentration of water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568788A (en) * | 2016-08-16 | 2017-04-19 | 马鞍山市桓泰环保设备有限公司 | X-ray fluorescence technology based sewage heavy metal on-line detection device and monitoring method |
| CN107402250A (en) * | 2016-05-20 | 2017-11-28 | 无锡创晨科技有限公司 | A kind of multi-parameter water quality heavy metal automatic on-line detector and detection method |
| CN114812732A (en) * | 2022-03-18 | 2022-07-29 | 江苏天瑞仪器股份有限公司 | Groundwater normal position detection device based on ASV |
-
2013
- 2013-05-20 CN CN 201320274996 patent/CN203275361U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402250A (en) * | 2016-05-20 | 2017-11-28 | 无锡创晨科技有限公司 | A kind of multi-parameter water quality heavy metal automatic on-line detector and detection method |
| CN106568788A (en) * | 2016-08-16 | 2017-04-19 | 马鞍山市桓泰环保设备有限公司 | X-ray fluorescence technology based sewage heavy metal on-line detection device and monitoring method |
| CN114812732A (en) * | 2022-03-18 | 2022-07-29 | 江苏天瑞仪器股份有限公司 | Groundwater normal position detection device based on ASV |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20200520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |