CN102183668B - Heavy metal online analyzer - Google Patents
Heavy metal online analyzer Download PDFInfo
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- CN102183668B CN102183668B CN2011100285479A CN201110028547A CN102183668B CN 102183668 B CN102183668 B CN 102183668B CN 2011100285479 A CN2011100285479 A CN 2011100285479A CN 201110028547 A CN201110028547 A CN 201110028547A CN 102183668 B CN102183668 B CN 102183668B
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Abstract
The invention discloses a heavy metal online analyzer, which comprises a control module, a water sample pretreatment module controlled by the control module, at least two independent detection modules controlled by the control module and an automatic sample reservation module controlled by the control module; and each detection module independently runs, detects the heavy metal content of a water sample to be detected and transmits data to the control module. The heavy metal online analyzer comprises the at least two detection modules which are independently controlled by the control module respectively, can be separately operated to complete measurement, can be simultaneously operated and have no interference to each other, so the heavy metal online analyzer has low cost and can detect multiple elements.
Description
[technical field]
The present invention relates to the on-line analysis of heavy metal in the water body, relate in particular to a kind of heavy metal online analyzer.
[background technology]
Traditional heavy metal online analyzer device is mainly selected two kinds of detection methods for use: optical detection and anodic stripping voltammetry.Adopt the heavy metal online analyzer device of these two kinds of methods all need overlap the liquid-way system of control automatically through one; In sample, add a certain amount of chemical reagent, and then sample is carried out quantitative measurement through AAS or anodic stripping voltammetry in the detection position.
Traditional every instrument of heavy metal online analyzer device only comprises the above-mentioned liquid-way system of a cover; The element kind that can detect is limited; The user can't expand the detectability of an instrument as required, detects the method that more kinds of elements can only take to buy more instruments like need, and cost is higher.
[summary of the invention]
Based on this, be necessary to provide a kind of lower-cost, heavy metal online analyzer device of being used to detect more kinds of elements.
A kind of heavy metal online analyzer comprises: control module, the water sample pre-processing module that receives said control module control, at least two modules that keep sample automatically that independently receive the detection module of said control module control and receive said control module control; Each said detection module independent operating detects the content of beary metal of water sample to be measured and data transmission is arrived said control module;
The cycle of operation of said heavy metal online analyzer comprises automatic calibration cycle that produces blank value, standard value and measured value and the routine measurement cycle that produces measured value; Said automatic calibration cycle of 1～50 said automatic insertion of routine measurement week after date of the every operation of said heavy metal online analyzer;
The every operation of said heavy metal online analyzer is once upgraded said blank value and said calibration value behind the calibration cycle automatically automatically.
Preferably, said detection module is drawer-like and fixes through rail plate that said detection module can be extracted out or push.
Preferably, said automatic calibration cycle of 5 said automatic insertions of routine measurement week after date of the every operation of said heavy metal online analyzer.
Preferably, said detection module comprises application of sample pipeline and the reaction tank with measuring ability.
Preferably, under the said automatic calibration cycle:
Said control module is controlled said water sample pre-processing module and is extracted water sample to be measured and filtration from check point;
Said control module is controlled each said detection module respectively and is accomplished following operation: extract the water sample to be measured that has filtered and be filled into said application of sample pipeline from said water sample pre-processing module behind the said application of sample pipeline emptying waste liquid; Waste liquid in the said reaction tank of emptying is also filled distilled water and electrolytic solution, as blank; Said reaction tank detects the content of beary metal of said reaction tank empty appearance as blank value, and said blank value is transferred to said control module; Blank in the said reaction tank of emptying is also filled distilled water, electrolytic solution and titer as standard sample; Said reaction tank detects the content of beary metal of standard sample in the said reaction tank as standard value, and said standard value is transferred to said control module; Standard sample in the said reaction tank of emptying is also filled distilled water, electrolytic solution, and the water sample to be measured that has filtered that extracts simultaneously in the said application of sample pipeline joins in the said reaction tank to clean said reaction tank; The said application of sample pipeline of emptying, and the water sample to be measured that has filtered that extracts said water sample pre-processing module is filled into said application of sample pipeline; Waste liquid in the said reaction tank of emptying is also filled distilled water and electrolytic solution, and the water sample to be measured that has filtered that extracts in the said application of sample pipeline joins in the said reaction tank; Said reaction tank detects the content of beary metal of liquid in the said reaction tank, and is transferred to said control module, and said control module calculates measured value according to said blank value and said standard value;
Said control module judges whether to exceed standard according to said measured value, if there is the said measured value of any one said detection module to exceed standard, said control module is reported to the police and controlled the said module that keeps sample automatically and keeps current water sample to be measured.
Preferably, under the said routine measurement cycle:
Said control module is controlled said water sample pre-processing module and is extracted water sample to be measured and filtration from check point;
Said control module is controlled each said detection module respectively and is accomplished following operation: extract the water sample to be measured that has filtered and be filled into said application of sample pipeline from said water sample pre-processing module behind the waste liquid in the said application of sample pipeline of emptying; Waste liquid in the said reaction tank of emptying is also filled distilled water and electrolytic solution, and the water sample to be measured that has filtered that extracts in the said application of sample pipeline joins in the said reaction tank; Said reaction tank detects the content of beary metal of liquid in the said reaction tank, and is transferred to said control module, and said control module calculates measured value according to said blank value and said standard value;
Said control module judges whether to exceed standard according to said measured value, if there is any one said measured value to exceed standard, said control module is reported to the police and controlled the said module that keeps sample automatically and keeps current water sample to be measured.
Preferably, said detection module also comprises mixing unit and digestion device; The water sample to be measured that has filtered in the said application of sample pipeline of said control module control extraction is in said mixing unit; Simultaneously reagent is cleared up in adding in the said mixing unit; Be drawn into behind the mixing in the said digestion device and clear up, clear up and accomplish back extraction water sample to be measured and join in the said reaction tank.
Preferably, said mixing unit is mixing pond or double end peristaltic pump.
Preferably, said detection module also comprises peristaltic pump, pinch off valve and the silica gel hose that is used to connect said water sample pre-processing module, said application of sample pipeline, said reaction tank and the said module that keeps sample automatically.
Preferably, said detection module can the detectable surplus, and when the reagent surplus was not enough, said detection module can send caution and be transferred to said control system, said control system control application of sample;
Said reagent is distilled water, electrolytic solution, clear up reagent, water sample to be measured or standard sample.
This heavy metal online analyzer device comprises at least two detection modules; Difference is the Be Controlled module controls independently; Can isolated operation accomplish measurement; Also moving simultaneously by many detection modules, do not disturb between module and the module, is the heavy metal online analyzer device that a kind of cost is lower, can detect multiple element.
[description of drawings]
Fig. 1 is the structural representation of the heavy metal online analyzer device of an embodiment;
Fig. 2 is the synoptic diagram of the detection module of heavy metal online analyzer device as shown in Figure 1;
Fig. 3 is the liquid road principle schematic of detection module as shown in Figure 2.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the heavy metal online analytical instrument is done further description.
Heavy metal online analyzer device as shown in Figure 1; Comprise passive framework 10, be fixed on 3 detection modules 20,30,40 on the framework 10; Be fixed on the control module 50 on the framework 10, the water sample pre-processing module (not shown) and the module (not shown) that keeps sample automatically.
Control module 50 is as the center module of heavy metal online analyzer device, the detection module of controlling 20,30,40, the operation of the water sample pre-processing module and the module that keeps sample automatically.Detection module 20,30,40 independent operating respectively detects the content of beary metal of water sample to be measured and data transmission is arrived control module 50, and detection module 20,30,40 detects the content and the non-interfering independent operating of different heavy metals.
The cycle of operation of this heavy metal online analyzer device comprises automatic calibration cycle and routine measurement cycle; The heavy metal online analyzer device moves an automatic calibration cycle earlier under the control of control module 50, automatic calibration cycle of the automatic insertion of 1～50 routine measurement week of every then operation after date.
Automatic calibration cycle of the automatic insertion of 5 routine measurement weeks of the every operation of the heavy metal online analyzer device of this embodiment after date.
Detection module 20,30,40 is a drawer-like; Be fixed on the framework 10 through rail plate, can extract out or push in the framework 10, can at any time detection module 20,30,40 be extracted out like this; Observing its inner member ruuning situation, and can carry out daily servicing to it.In other embodiment, detection module also can not adopt rail plate to fix, but directly is fixed in the framework 10.
Identical on detection module 20,30,40 functions, and independently Be Controlled module 50 controls respectively, each detection module 20,30, not interference between 40.The heavy metal online analyzer of this embodiment has 3 detection modules 20,30,40, in other embodiment, also can be 2,4 or more, and the number of detection module only is limited by the size of heavy metal online analyzer.Be the example introduction only below with detection module 20.
Detection module 20 as shown in Figure 2 comprises the application of sample pipeline, has measuring ability reaction tank 22, mixing unit 23 (consulting Fig. 3), digestion device 24 and the peristaltic pump 26, pinch off valve 28 and the silica gel hose that are used to connect water sample pre-processing module, application of sample pipeline, reaction tank 22, mixing unit 23, digestion device 24 and the module that keeps sample automatically.
Adopt peristaltic pump 26 and pinch off valve 28 to substitute the solenoid valve and the membrane pump of traditional heavy metal online analyzer device, peristaltic pump 26 does not directly contact with liquid with pinch off valve 28 in the course of work, has avoided reagent contamination and corrosion.
The reaction tank 22 of this embodiment adopts three electrode detection systems, can the liquid of its inside be stirred and detect, and obtains the content of heavy metal element to be measured.
In other embodiment, all right selective optical method detects the content of heavy metal element.
Introduce respectively with automatic calibration cycle through the routine measurement cycle below the heavy metal online analytical instrument; Come detailed description (operate to example with detection module 20, detection module 30 is identical with detection module 20 with 40 operational process) is carried out in the effect of each module of heavy metal online analytical instrument and element.
Automatic calibration cycle:
Control module 50 control water sample pre-processing module extract water sample to be measured and filtration from check point;
Control module 50 control detection modules 20 are accomplished following operation: extract the water sample to be measured that has filtered and be filled into the application of sample pipeline from the water sample pre-processing module behind the application of sample pipeline emptying waste liquid; Waste liquid in the emptying reaction tank 22 is also filled distilled water and electrolytic solution, as blank; The content of beary metal of reaction tank 22 detection reaction ponds 22 empty appearance is as blank value, and blank value is input to control module 50; 22 blank and fill distilled water, electrolytic solution and titer in the emptying reaction tank as standard sample; The content of beary metal of standard sample is as standard value in the reaction tank 22 detection reaction ponds 22, and standard value is input to control module 50; Standard sample in the emptying reaction tank 22 is also filled distilled water, electrolytic solution, and the water sample to be measured that has filtered that extracts simultaneously in the application of sample pipeline joins in the reaction tank 22 with cleaning reaction pond 22; Emptying application of sample pipeline, and the water sample to be measured that has filtered that extracts said water sample pre-processing module is filled into the application of sample pipeline; Waste liquid in the emptying reaction tank 22 is also filled distilled water and electrolytic solution; The water sample to be measured that from the application of sample pipeline, will filter is drawn in the mixing unit 23; Simultaneously reagent is cleared up in adding in the mixing unit 23; Be drawn into behind the mixing in the digestion device 24 and clear up, clear up and accomplish back extraction water sample to be measured and join in the reaction tank 22; The content of beary metal of liquid and be input to control module 50 in the reaction tank 22 detection reaction ponds 22, control module 50 calculates measured value according to blank value and standard value;
Control module 50 judges according to measured value whether content of beary metal exceeds standard, if exceed standard, control module 50 is reported to the police and control keeps sample automatically, and module keeps current water sample to be measured.
The once automatic calibration cycle of the every operation of heavy metal online analyzer, blank value and standard value all can be upgraded automatically.In the present embodiment, the each automatic more new capital of blank value and standard value is directly to replace raw value with the numerical value that newly measures.
The routine measurement cycle:
Control module 50 control water sample pre-processing module extract water sample to be measured and filtration from check point;
Control module 50 control detection modules 20 are accomplished following operation: extract the water sample to be measured that has filtered and be filled into the application of sample pipeline from the water sample pre-processing module behind the waste liquid in the emptying application of sample pipeline; Waste liquid in the emptying reaction tank 22 is also filled distilled water and electrolytic solution; The water sample to be measured that from the application of sample pipeline, will filter is drawn in the mixing unit 23; Simultaneously reagent is cleared up in adding in the mixing unit 23; Be drawn into behind the mixing in the digestion device 24 and clear up, clear up and accomplish back extraction water sample to be measured and join in the reaction tank 22; The content of beary metal of liquid and be input to control module 50 in the reaction tank 22 detection reaction ponds 22, control module 50 calculates measured value according to blank value and standard value;
Control module 50 judges according to measured value whether content of beary metal exceeds standard, if content of beary metal exceeds standard, control module 50 is reported to the police and control keeps sample automatically, and module keeps current water sample to be measured.
When measurement module 20,30,40 moves simultaneously; If measurement module 50 judges have the content of beary metal in any one measurement module 20,30 or 40 to exceed standard according to the measured value that receives, control module 50 is reported to the police and control keeps sample automatically, and module keeps current water sample to be measured.
When measurement module 20,30,40 moved simultaneously, control module 50 judged that according to the measured value that receives the result of any one detection module 20,30 or 40 exceeds standard, and control module 50 is reported to the police and control keeps sample automatically, and module keeps current water sample to be measured.
Can improve the running precision of heavy metal online analyzer so that heavy metal online analyzer is calibrated through insert automatic calibration cycle at all after dates of routine measurement behind the operation some cycles.
In this embodiment, detection module 20 comprises mixing unit 23 and digestion device 24, and in order to water sample to be measured is cleared up operation, in other embodiment, water sample to be measured can not cleared up operation, directly detects; Be that detection module 20 can not comprise mixing unit 23 and digestion device 24.
In this embodiment, mixing unit 23 is the mixing pond, and in other embodiment, mixing unit 23 also can be the double end peristaltic pump.
Fig. 3 is the liquid road principle schematic of detection module 20, can find out that by figure peristaltic pump 26 has 4: 262,264,266,268, and pinch off valve 28 has 5: 281,283,285,287,289.
Detection module 20 can detect distilled water, electrolytic solution automatically, clear up the surplus of reagent such as reagent, water sample to be measured and standard sample, and when the reagent surplus was not enough, detection module 20 can send caution and be transferred to control module 50, control module 50 control application of samples.
Open in mixing unit 23, to inject behind pinch off valve 283 and the peristaltic pump 264 and quantitatively clear up reagent; Close and in mixing unit 23, to inject quantitative water sample to be measured after pinch off valve 283 is opened pinch off valve 281 and peristaltic pump 264; The liquid of mixing can inject digestion device 24 through opening peristaltic pump 266 in the mixing unit 23, waits to clear up completion continued operation peristaltic pump 266 and can water sample to be measured be injected reaction chamber 22.
Close pinch off valve 287, open the reaction chamber of injection quantitatively 22 that pinch off valve 285 and peristaltic pump 268 can be accomplished electrolytic solution simultaneously.
Close pinch off valve 285, open the reaction chamber of injection quantitatively 22 that pinch off valve 287 and peristaltic pump 268 can be accomplished distilled water simultaneously.
The quantitative interpolation of standard sample only need start peristaltic pump 262 and get final product.
After water sample to be measured, standard sample or blank were added completion, the three-electrode systems of opening in the reaction chamber 22 carried out the contents of heavy metal elements measurement.After test is accomplished, open the discharging that pinch off valve 289 can be accomplished waste liquid.
This heavy metal online analyzer device comprises three detection modules 20,30,40; Independently Be Controlled module 50 controls respectively can isolated operation be accomplished measurement, also can move simultaneously by many detection modules; Do not disturb between module and the module; This heavy metal online analyzer device is simple in structure simultaneously, is easy to control, and is easy to maintenance.
The concrete quantity of detection module 20,30,40 only is limited by the size of on-line monitoring instrument, does not receive the constraint of other conditions.
Detection module 20,30,40 is a drawer-like, is fixed on the framework 10 through rail plate, can extract out at any time and observe, and makes things convenient for observation test process and maintenance tool.
The device that detection module 20,30,40 adopts peristaltic pumps 28 and pinch off valve 29 etc. directly contacts with liquid has been avoided can saving the apparatus guarantee cost because of reagent or the residual pump that causes of sample, valve damage.
The above embodiment has only expressed one or more embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. heavy metal online analyzer; It is characterized in that, comprising: control module, the water sample pre-processing module that receives said control module control, at least two modules that keep sample automatically that independently receive the detection module of said control module control and receive said control module control; Each said detection module independent operating detects the content of beary metal of water sample to be measured and data transmission is arrived said control module;
The cycle of operation of said heavy metal online analyzer comprises automatic calibration cycle that produces blank value, standard value and measured value and the routine measurement cycle that produces measured value; Said automatic calibration cycle of 1～50 said automatic insertion of routine measurement week after date of the every operation of said heavy metal online analyzer;
The every operation of said heavy metal online analyzer is once upgraded said blank value and said calibration value behind the calibration cycle automatically automatically.
2. heavy metal online analyzer as claimed in claim 1 is characterized in that, said detection module is drawer-like and fixes through rail plate that said detection module can be extracted out or push.
3. heavy metal online analyzer as claimed in claim 1 is characterized in that, said automatic calibration cycle of 5 said automatic insertions of routine measurement week after date of the every operation of said heavy metal online analyzer.
4. heavy metal online analyzer as claimed in claim 1 is characterized in that, said detection module comprises application of sample pipeline and the reaction tank with measuring ability.
5. heavy metal online analyzer as claimed in claim 4 is characterized in that, under the said automatic calibration cycle:
Said control module is controlled said water sample pre-processing module and is extracted water sample to be measured and filtration from check point;
Said control module is controlled each said detection module respectively and is accomplished following operation: extract the water sample to be measured that has filtered and be filled into said application of sample pipeline from said water sample pre-processing module behind the said application of sample pipeline emptying waste liquid; Waste liquid in the said reaction tank of emptying is also filled distilled water and electrolytic solution, as blank; Said reaction tank detects the content of beary metal of said reaction tank empty appearance as blank value, and said blank value is transferred to said control module; Blank in the said reaction tank of emptying is also filled distilled water, electrolytic solution and titer as standard sample; Said reaction tank detects the content of beary metal of standard sample in the said reaction tank as standard value, and said standard value is transferred to said control module; Standard sample in the said reaction tank of emptying is also filled distilled water, electrolytic solution, and the water sample to be measured that has filtered that extracts simultaneously in the said application of sample pipeline joins in the said reaction tank to clean said reaction tank; The said application of sample pipeline of emptying, and the water sample to be measured that has filtered that extracts said water sample pre-processing module is filled into said application of sample pipeline; Waste liquid in the said reaction tank of emptying is also filled distilled water and electrolytic solution, and the water sample to be measured that has filtered that extracts in the said application of sample pipeline joins in the said reaction tank; Said reaction tank detects the content of beary metal of liquid in the said reaction tank, and is transferred to said control module, and said control module calculates measured value according to said blank value and said standard value;
Said control module judges whether to exceed standard according to said measured value, if there is the said measured value of any one said detection module to exceed standard, said control module is reported to the police and controlled the said module that keeps sample automatically and keeps current water sample to be measured.
6. heavy metal online analyzer as claimed in claim 5 is characterized in that, under the said routine measurement cycle:
Said control module is controlled said water sample pre-processing module and is extracted water sample to be measured and filtration from check point;
Said control module is controlled each said detection module respectively and is accomplished following operation: extract the water sample to be measured that has filtered and be filled into said application of sample pipeline from said water sample pre-processing module behind the waste liquid in the said application of sample pipeline of emptying; Waste liquid in the said reaction tank of emptying is also filled distilled water and electrolytic solution, and the water sample to be measured that has filtered that extracts in the said application of sample pipeline joins in the said reaction tank; Said reaction tank detects the content of beary metal of liquid in the said reaction tank, and is transferred to said control module, and said control module calculates measured value according to said blank value and said standard value;
Said control module judges whether to exceed standard according to said measured value, if there is any one said measured value to exceed standard, said control module is reported to the police and controlled the said module that keeps sample automatically and keeps current water sample to be measured.
7. heavy metal online analyzer as claimed in claim 4 is characterized in that said detection module also comprises mixing unit and digestion device; The water sample to be measured that has filtered in the said application of sample pipeline of said control module control extraction is in said mixing unit; Simultaneously reagent is cleared up in adding in the said mixing unit; Be drawn into behind the mixing in the said digestion device and clear up, clear up and accomplish back extraction water sample to be measured and join in the said reaction tank.
8. heavy metal online analyzer as claimed in claim 7 is characterized in that, said mixing unit is mixing pond or double end peristaltic pump.
9. heavy metal online analyzer as claimed in claim 4; It is characterized in that said detection module also comprises peristaltic pump, pinch off valve and the silica gel hose that is used to connect said water sample pre-processing module, said application of sample pipeline, said reaction tank and the said module that keeps sample automatically.
10. heavy metal online analyzer as claimed in claim 1 is characterized in that, said detection module can the detectable surplus, and when the reagent surplus was not enough, said detection module can send caution and be transferred to said control system, said control system control application of sample;
Said reagent is distilled water, electrolytic solution, clear up reagent, water sample to be measured or standard sample.
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| CN103364461B (en) * | 2013-04-22 | 2017-05-17 | 江苏天瑞仪器股份有限公司 | Online water heavy metal analyzer |
| CN106644991B (en) * | 2017-02-21 | 2019-03-08 | 中国环境科学研究院 | MnZn is aged liquogel process concentration of metal ions intelligence on-line real time monitoring system and method |
| CN108363418A (en) * | 2018-02-08 | 2018-08-03 | 江西景旺精密电路有限公司 | A kind of liquid medicine automatic detection device and detection method |
| CN110108849A (en) * | 2019-05-10 | 2019-08-09 | 重庆紫量科技有限公司 | A kind of environmentally friendly sewage detection and its sampler |
| CN113155758A (en) * | 2021-03-03 | 2021-07-23 | 贵阳学通仪器仪表有限公司 | Automatic high-precision online heavy metal detector for boiler and manufacturing method thereof |
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Address after: 518000 Guangdong Province, Shenzhen city Nanshan District Beihuan Avenue office building on the third floor of North East flour Patentee after: SHENZHEN LABSUN BIO-INSTRUMENT LIMITED CO., LTD. Address before: 518000 Guangdong Province, Shenzhen city Nanshan District Beihuan Avenue office building on the third floor of North East flour Patentee before: Shenzhen Labsun Biological Instrument Co., Ltd. |
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Address after: 518000, Guangdong, Nanshan District, Shenzhen hi tech, a 2 Long Park, new material port 10, 7 Patentee after: SHENZHEN LABSUN BIO-INSTRUMENT LIMITED CO., LTD. Address before: 518000 Guangdong Province, Shenzhen city Nanshan District Beihuan Avenue office building on the third floor of North East flour Patentee before: SHENZHEN LABSUN BIO-INSTRUMENT LIMITED CO., LTD. |