CN103207174A - Online total-lead testing instrument - Google Patents
Online total-lead testing instrument Download PDFInfo
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- CN103207174A CN103207174A CN201310076890XA CN201310076890A CN103207174A CN 103207174 A CN103207174 A CN 103207174A CN 201310076890X A CN201310076890X A CN 201310076890XA CN 201310076890 A CN201310076890 A CN 201310076890A CN 103207174 A CN103207174 A CN 103207174A
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- line detector
- control borad
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Abstract
The invention discloses an online total-lead testing instrument comprising an injection device, a metering device, a multi-way valve, a digesting device, a spectrophotometric determination device, a main control panel and a display device. A public port and a plurality of distributing ports are arranged on the multi-way valve. The online total lead testing instrument is characterized in that the injection device and the metering device are sequentially connected with the public port of the multi-way valve through pipelines; one of the distributing ports of the multi-way valve is connected with a liquid inlet of the digesting device via a first high-temperature and high-pressure magnetic valve through the pipelines; the spectrophotometric determination device is fixed on the digesting device, and the metering device, the multi-way valve, the first high-temperature and high-pressure magnetic valve, the digesting device, the spectrophotometric determination device and the display device are all electrically connected with the main control board. By the aid of the online total lead testing instrument, testing efficiency is improved, testing sensitivity is high, testing data is stable and reliable, operation costs are low, operation and maintenance are facilitated, and the online total lead testing instrument is harmless to an operator and environment.
Description
Technical field
The invention belongs to water quality on-line analysis equipment technical field, be specifically related to a kind of total plumbous on-line detector device.
Background technology
Lead is toxic metals, especially can destroy children's nervous system, causes blood disease and encephalopathic.Long-term contact lead and salt thereof the PbO2 of strong oxidizing property (especially soluble and) can cause the stomachache of ephrosis and similar angina.Therefore, one of plumbous major pollutants as industrial waste water are the heavy metal indexs of the strict control of country.Existing assay method mainly contains dithizone colorimetric method, atomic absorption spectrophotometry and electrochemical analysis method etc.Wherein, dithizone colorimetric method is the present most widely used plumbous method of measuring, but it exists selectivity and reappearance relatively poor, the experiment condition harshness, need with shortcomings such as poisonous organic solvent methenyl choloride, benzene etc. extract, required experimental facilities is more numerous and diverse, and does not have to realize specially the support equipment of its work flow, and detection efficiency is low.Atomic absorption spectrophotometry sensitivity and accuracy are higher, but realize that the equipment price that this method uses is higher, and operating cost is also very high, and the pre-treatment of water sample are required high, and its operating process is comparatively complicated.It is higher that electrochemical analysis method is measured plumbous sensitivity, but owing to electrode itself in the equipment that adopts is affected by environment bigger, and easily environment is polluted, so the repeatability of using this method and apparatus to measure is not high.More than three kinds of methods and relevant device be applied to laboratory or field quick detection more, and in the application in water quality on-line analysis field difficulty comparatively.
Summary of the invention
The present invention seeks to: at the shortcoming and defect of prior art, provide a kind of detection efficiency and detection sensitivity height, data stabilization is reliable, and operating cost is cheap, is convenient to operation and maintenance and to the total plumbous on-line detector device of operator and environment nonhazardous effect.
Technical scheme of the present invention is: a kind of total plumbous on-line detector device, comprise injection device, measuring apparatus, banked direction control valves, digestion instrument, the spectrophotometry device, master control borad and display device, described banked direction control valves is provided with public port and some distribution ports, it is characterized in that described injection device, link to each other by the pipeline order between the public port of measuring apparatus and banked direction control valves, one of them of banked direction control valves distributes port to link to each other with the inlet of digestion instrument through first high temperature high voltage solenoid valve by pipeline, described spectrophotometry device is fixed on the digestion instrument, and described measuring apparatus, banked direction control valves, first high temperature high voltage solenoid valve, digestion instrument, spectrophotometry device and display device all are electrically connected with master control borad.
Preferably, measuring apparatus described in the present invention is optoelectronic metering installation, it comprises photoelectrometer gauge block, photoelectrometer buret and gauge line support, described photoelectrometer buret is fixed on the gauge line support, the outside of described photoelectrometer buret is with some photoelectrometer gauge blocks, the upper end of photoelectrometer buret links to each other with injection device by the road, and the lower end then links to each other with the public port of banked direction control valves by the road, and described each photoelectrometer gauge block all is electrically connected with master control borad.
Preferably, injection device described in the present invention is automatic syringe pump or manual syringe pumps.
Further, described manual syringe pumps comprises the syringe pump body and is located at the intrinsic piston rod of syringe pump that the endpiece of described syringe pump body links to each other with measuring apparatus by the road.
Preferably, the device of spectrophotometry described in the present invention comprises measures light source module, mensuration Optical Receivers, light source holder and receiver module holder, described mensuration light source module and mensuration Optical Receivers are separately fixed on light source holder and the receiver module holder, and light source holder and receiver module holder are symmetrically fixed on the both sides of digestion instrument respectively, and described mensuration light source module and mensuration Optical Receivers all are electrically connected with master control borad.
Preferably, digestion instrument is provided with evacuation port described in the present invention, is connected to evacuated tube on the described evacuation port, and evacuated tube is provided with second high temperature high voltage solenoid valve, and described second high temperature high voltage solenoid valve is electrically connected with master control borad.
Preferably, digestion instrument described in the present invention is made of digestion pool and the resistive heater that is wrapped on the digestion pool outer wall, and described resistive heater is electrically connected with master control borad.
Preferably, banked direction control valves described in the present invention is provided with the water sample that is respectively applied to import lead waste water to be measured, six distribution ports that distribute port and at least one to be used for the leaded standard solution of input contrast usefulness clearing up agent, buffer solution, developer, sensitizer and cleaning fluid, also is provided with for the distribution port of exporting the waste liquid after experiment finishes.
Preferably, display device described in the present invention is liquid crystal display, and described liquid crystal display is electrically connected with master control borad by communication port.
The present invention is mainly used in the mensuration of total lead concentration value of lead waste water, and its use principle and step are described below:
A. under the effect of injection device, be 1:1～1:3 with volume ratio respectively by measuring apparatus and banked direction control valves; Lead waste water to be measured water sample and clear up agent and push in the digestion instrument;
B. the water sample among the blend step a and clear up agent under high-pressure sealed condition, heats described mixed liquor to digestion condition T1, constant temperature digestion in time t1, and liquid does not seethe with excitement in the digestion process; Preferred digestion condition T1 is 110 ℃, and preferred described heating reaction time t1 is 5～15min;
C. clear up and finish, be cooled to design temperature T2, preferred 50 ℃ usually of T2;
D. under the effect of injection device, respectively buffer solution, developer, the sensitizer (addition sequence no requirement (NR)) of certain volume are pushed in the digestion instrument by measuring apparatus and banked direction control valves; Described developer is the preferential xylenol orange of selecting usually, and concentration is 0.1～1g/L, and consumption is 0.4～4ml; Described sensitizer is selected polyoxyethylene nonylphenol ether for use, and concentration is 1 * 10
-3
Mol/L～5 * 10
-3
Mol/L, consumption are 0.4～2ml; Described buffer solution is acetic acid-ammonium acetate buffer system, and its pH is 4.8～6.0, and consumption is 1～4ml;
E. under the room temperature condition, constant temperature develops the color in time t2; Described developing time t2 is preferably 5～30min;
F. colour developing finishes, and the magnitude of voltage of Optical Receivers measured in the chip record on the master control borad;
G. combined standard curve again, total lead concentration computing formula that the chip internal by master control borad presets calculates total lead concentration value of water sample, and shows by display device;
H. detect and finish, discharge the waste liquid after testing, feed cleaning fluid (being generally distilled water) and clean digestion instrument.
Advantage of the present invention is:
1, instrument of the present invention will be for detection of each experimental facilities organic assembling of the total lead concentration of water quality, and coordinate the detection operation of control whole instrument by master control borad, the detection sensitivity height, data stabilization is reliable, can realize to improve detection efficiency greatly to real-time, the continuous detecting of total lead content in all kinds of water bodys such as industrial waste water and surface water.
, simple, the operation and maintenance of apparatus structure of the present invention is convenient, operating cost is cheap.
, instrument of the present invention is to operator and environment nonhazardous effect, and is safe and reliable.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is structural representation sketch of the present invention.
Wherein: 1, syringe pump body; 2, piston rod; 3, photoelectrometer gauge block; 4, photoelectrometer buret; 5, gauge line support; 6, banked direction control valves; 7, first high temperature high voltage solenoid valve; 8, digestion instrument; 9, measure light source module; 10, light source holder; 11, measure Optical Receivers; 12, receiver module holder; 13, resistive heater; 14, master control borad; 15, display device; 16, digestion pool; 17, second high temperature high voltage solenoid valve.
Embodiment
Embodiment: be illustrated in figure 1 as a kind of embodiment of the total plumbous on-line detector device of the present invention, it is made up of injection device, measuring apparatus, banked direction control valves 6, first high temperature high voltage solenoid valve 7, second high temperature high voltage solenoid valve 17, digestion instrument 8, spectrophotometry device, master control borad 14 and display device 15 these devices.Injection device in the present embodiment adopts manual syringe pumps, and it is made of syringe pump body 1 and the piston rod of being located in the syringe pump body 12.Measuring apparatus in the present embodiment is optoelectronic metering installation, it is made up of photoelectrometer gauge block 3, photoelectrometer buret 4 and gauge line support 5, described photoelectrometer buret 4 is fixed on the gauge line support 5, and the endpiece of aforementioned syringe pump body 1 links to each other with the upper end of this photoelectrometer buret 4 by the road.The outside of described photoelectrometer buret 4 order from top to bottom is with three photoelectrometer gauge blocks 3, and these photoelectrometer gauge blocks 3 all are electrically connected with master control borad 14.
Banked direction control valves 6 in the present embodiment is prior art, which is provided with a public port (not marking) and ten distribution ports (not marking), and the lower end of described photoelectrometer buret 4 links to each other with the public port of banked direction control valves 6 by the road.In conjunction with shown in the label character among Fig. 1, eight distribution ports of banked direction control valves 6 are respectively applied to import the second leaded standard solution (abbreviation mark liquid two) of the water sample of lead waste water to be measured, the first leaded standard solution (being called for short mark liquid one) of clearing up agent, buffer solution (acetic acid-ammonium acetate buffer system), developer (xylenol orange), sensitizer (polyoxyethylene nonylphenol ether), cleaning fluid (distilled water), contrast usefulness and contrast usefulness again; Two remaining waste liquids that are used for after the output experiment finishes that distribute in the port, another then links to each other with the inlet of digestion instrument 8 through first high temperature high voltage solenoid valve 7 by pipeline.Described banked direction control valves 6 and first high temperature high voltage solenoid valve 7 all are electrically connected with master control borad 14.
Described spectrophotometry device in the present embodiment is formed by measuring light source module 9, mensuration Optical Receivers 11, light source holder 10 and receiver module holder 12, described mensuration light source module 9 and mensuration Optical Receivers 11 are separately fixed on light source holder 10 and the receiver module holder 12, and light source holder 10 and receiver module holder 12 are symmetrically fixed on the both sides of digestion instrument 8 respectively, and described mensuration light source module 9 and mensuration Optical Receivers 11 all are electrically connected with master control borad 14.Described digestion instrument 8 is provided with evacuation port, is connected to evacuated tube on the described evacuation port, and evacuated tube is provided with second high temperature high voltage solenoid valve 17, and described second high temperature high voltage solenoid valve 17 is electrically connected with master control borad 14.Digestion instrument 8 described in the present embodiment is routine techniques, and it is made of digestion pool 16 and the resistive heater 13 that is wrapped on digestion pool 16 outer walls, and described resistive heater 13 is electrically connected with master control borad 14.
What the described display device 15 in the present embodiment adopted is liquid crystal display, and described liquid crystal display is electrically connected with master control borad 14 by communication port.
Present embodiment is used for the mensuration of total lead concentration value of lead waste water, and its use principle and step are described below:
A. under the effect of manual syringe pumps, be 1:1～1:3 with volume ratio respectively by optoelectronic metering installation and banked direction control valves 6; Lead waste water to be measured water sample and clear up agent and push in the digestion pool 16, metrical information is by master control borad 14 records;
B. the water sample among the blend step a and clear up agent under high-pressure sealed condition, heats described mixed liquor to digestion condition T1, constant temperature digestion in time t1, and liquid does not seethe with excitement in the digestion process; Preferred digestion condition T1 is 110 ℃, and preferred described heating reaction time t1 is 5～15min;
C. clear up and finish, be cooled to design temperature T2, preferred 50 ℃ usually of T2;
D. under the effect of manual syringe pumps, respectively buffer solution, developer, the sensitizer (addition sequence no requirement (NR)) of certain volume are pushed in the digestion pool 16 by optoelectronic metering installation and banked direction control valves 6; Described developer is the preferential xylenol orange of selecting usually, and concentration is 0.1～1g/L, and consumption is 0.4～4ml; Described sensitizer is selected polyoxyethylene nonylphenol ether for use, and concentration is 1 * 10
-3
Mol/L～5 * 10
-3
Mol/L, consumption are 0.4～2ml; Described buffer solution is acetic acid-ammonium acetate buffer system, and its pH is 4.8～6.0, and consumption is 1～4ml, and described metrical information is by master control borad 14 records;
E. under the room temperature condition, constant temperature develops the color in time t2; Described developing time t2 is preferably 5～30min;
F. colour developing finishes, and the magnitude of voltage of Optical Receivers 11 measured in the chip record on the master control borad 14;
G. combined standard curve again, total lead concentration computing formula that the chip internal by master control borad 14 presets calculates total lead concentration value of water sample, and shows by display device 15;
H. detect and finish, discharge the waste liquid after testing, feed cleaning fluid (being generally distilled water) and clean digestion pool 16.
Certainly also can feed mark liquid one and mark liquid two according to the experiment needs, be used for making comparisons with total lead concentration of water sample to be measured.
Certainly above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All modifications that the spiritual essence of main technical schemes is done according to the present invention all should be encompassed within protection scope of the present invention.
Claims (9)
1. total plumbous on-line detector device, comprise injection device, measuring apparatus, banked direction control valves (6), digestion instrument (8), the spectrophotometry device, master control borad (14) and display device (15), described banked direction control valves (6) is provided with public port and some distribution ports, it is characterized in that described injection device, link to each other by the pipeline order between the public port of measuring apparatus and banked direction control valves (6), one of them of banked direction control valves (6) distributes port to link to each other through the inlet of first high temperature high voltage solenoid valve (7) with digestion instrument (8) by pipeline, described spectrophotometry device is fixed on the digestion instrument (8), and described measuring apparatus, banked direction control valves (6), first high temperature high voltage solenoid valve (7), digestion instrument (8), spectrophotometry device and display device (15) all are electrically connected with master control borad (14).
2. total plumbous on-line detector device according to claim 1, it is characterized in that described measuring apparatus is optoelectronic metering installation, it comprises photoelectrometer gauge block (3), photoelectrometer buret (4) and gauge line support (5), described photoelectrometer buret (4) is fixed on the gauge line support (5), the outside of described photoelectrometer buret (4) is with some photoelectrometer gauge blocks (3), the upper end of photoelectrometer buret (4) links to each other with injection device by the road, the lower end then links to each other with the public port of banked direction control valves (6) by the road, and described each photoelectrometer gauge block (3) all is electrically connected with master control borad (14).
3. total plumbous on-line detector device according to claim 1 is characterized in that described injection device is automatic syringe pump or manual syringe pumps.
4. total plumbous on-line detector device according to claim 3, it is characterized in that described manual syringe pumps comprises syringe pump body (1) and is located at the interior piston rod (2) of syringe pump body (1), the endpiece of described syringe pump body (1) links to each other with measuring apparatus by the road.
5. total plumbous on-line detector device according to claim 1, it is characterized in that described spectrophotometry device comprises mensuration light source module (9), measure Optical Receivers (11), light source holder (10) and receiver module holder (12), described mensuration light source module (9) and mensuration Optical Receivers (11) are separately fixed on light source holder (10) and the receiver module holder (12), and light source holder (10) and receiver module holder (12) are symmetrically fixed on the both sides of digestion instrument (8) respectively, and described mensuration light source module (9) and mensuration Optical Receivers (11) all are electrically connected with master control borad (14).
6. total plumbous on-line detector device according to claim 1, it is characterized in that described digestion instrument (8) is provided with evacuation port, be connected to evacuated tube on the described evacuation port, evacuated tube is provided with second high temperature high voltage solenoid valve (17), and described second high temperature high voltage solenoid valve (17) is electrically connected with master control borad (14).
7. according to claim 1 or 5 or 6 described total plumbous on-line detector devices, it is characterized in that described digestion instrument (8) is made of digestion pool (16) and the resistive heater (13) that is wrapped on digestion pool (16) outer wall, described resistive heater (13) is electrically connected with master control borad (14).
8. total plumbous on-line detector device according to claim 1, it is characterized in that described banked direction control valves (6) is provided with the water sample that is respectively applied to import lead waste water to be measured, six distribution ports that distribute port and at least one to be used for the leaded standard solution of input contrast usefulness clearing up agent, buffer solution, developer, sensitizer and cleaning fluid, also is provided with for the distribution port of exporting the waste liquid after experiment finishes.
9. total plumbous on-line detector device according to claim 1 is characterized in that described display device (15) is liquid crystal display, and described liquid crystal display is electrically connected with master control borad (14) by communication port.
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| CN201310076890XA CN103207174A (en) | 2013-03-11 | 2013-03-11 | Online total-lead testing instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105548170A (en) * | 2016-01-08 | 2016-05-04 | 昆明泊银科技有限公司 | Lead ion detection test paper and preparing method and using method thereof |
| CN106525758A (en) * | 2016-09-08 | 2017-03-22 | 深圳市绿恩环保技术有限公司 | Automatic fluorine ion monitor |
| CN107817236A (en) * | 2017-12-14 | 2018-03-20 | 浙江微兰环境科技有限公司 | A kind of water quality total mercury detection means of ultraviolet digestion Pressurized sample digestion |
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| WO2010089829A1 (en) * | 2009-02-03 | 2010-08-12 | 株式会社 日立ハイテクノロジーズ | Total internal reflection microscope apparatus and method for analyzing fluorescent sample |
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| CN107817236A (en) * | 2017-12-14 | 2018-03-20 | 浙江微兰环境科技有限公司 | A kind of water quality total mercury detection means of ultraviolet digestion Pressurized sample digestion |
| CN107817236B (en) * | 2017-12-14 | 2024-04-16 | 浙江微兰环境科技有限公司 | Water quality total mercury detection device adopting ultraviolet digestion cold atomic fluorescence method |
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Application publication date: 20130717 |