CN104155422B - Water quality detection pipeline system and method - Google Patents
Water quality detection pipeline system and method Download PDFInfo
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- CN104155422B CN104155422B CN201410342240.XA CN201410342240A CN104155422B CN 104155422 B CN104155422 B CN 104155422B CN 201410342240 A CN201410342240 A CN 201410342240A CN 104155422 B CN104155422 B CN 104155422B
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- reaction tank
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- multiple valve
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- quantitative sampling
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Abstract
The invention discloses a water quality detection pipeline system and method. The water quality detection pipeline system comprises a multichannel valve, wherein one channel of the multichannel valve is connected with a sample, another channel of the multichannel valve is connected with a reaction tank, and at least one channel of the multichannel valve is connected with reagents; one end of a quantitative sampling device is connected with carrier liquid, and the other end of the quantitative sampling device is connected with one channel of the multichannel valve; the input end and the output end of the quantitative sampling device can be exchanged; a detection device used for detecting the components of reaction liquid in the reaction tank is arranged at the reaction tank. According to the water quality detection pipeline system, one channel is connected with the atmosphere, and a small amount of air enters a pipeline within the specific time period by process control, so that quantification is not influenced, and the two sections of liquid generating cross contamination can be separated from each other; therefore, the reagent consumption is greatly reduced in the testing process, and the problem that the measurement is influenced by the cross contamination between the regents can be fundamentally solved. In the aspect of waste discharge way, an air pump cooperates with a three-way valve, and the waste liquid can be directly discharged without passing through the multichannel electromagnetic valve, so that the problem of cross contamination caused by the waste liquid can be also thoroughly solved.
Description
Technical field
The present invention relates to a kind of water quality detection pipe-line system and water quality detection method.
Background technology
In water quality detection industry, most detecting instrument reagent consumption are the biggest.But in detecting some parametric procedure, agents useful for same toxicity is very big, and seriously polluted, so the demand that reagent consumes little water quality detection instrument is extremely urgent.Detecting instrument actual consumption amount is big, and its basic reason is on fluid path Principle Method the problem of cross-contamination between cross-contamination, waste liquid and the reagent that not can effectively solve the problem that between reagent.Multi-channel electromagnetic valve or multipassage rotary valve is employed for these most instruments.But the great advantage of the method is to reduce instrument overall volume, pipeline installs the complexity controlled with software flow, effect in terms of cross-contamination is very little, therefore on software flow, still take increasing drawing liquid amount in test process, test the way washing away pipeline after terminating with a large amount of reagent.Although the method can effectively solve cross-contamination issue, but the corresponding amount of reagent consumed is the most considerable.Therefore in the urgent need to the fluid path Principle Method of cross-contamination can be prevented effectively from.
Summary of the invention
In order to overcome the problems referred to above, the present invention provides water quality detection pipe-line system and the matching method thereof that precision is high, can be prevented effectively from cross-contamination.
A kind of water quality detection pipe-line system of offer is provided, it includes multiple valve, it is characterized in that: a passage of described multiple valve connects sample, another passage of described multiple valve or a normally opened public passage coupled reaction pond, at least one passage other of described multiple valve connects a reagent, one end of a certain amount of sampler connects carrier fluid, the other end of described quantitative sampling device connects another passage or the public passage of described multiple valve, a liquid storage district is also set up between described quantitative sampling device and described multiple valve, input and the outfan of described quantitative sampling device are interchangeable, it is provided with at described reaction tank and detects the detection device of reaction liquid composition in described reaction tank.
Preferably, a channel connection air of described multiple valve or simultaneously connect a reagent and air.
Preferably, described reaction tank pipeline connects a positive pressure pump, and described reaction tank connects waste liquid outlet by another pipeline.
Preferably, the pipeline between described waste liquid outlet and described reaction tank arranges a check valve.
Preferably, described multiple valve is multi-channel electromagnetic valve or multi-center selection valve.
Preferably, described quantitative sampling device is peristaltic pump or syringe pump.
Preferably, described liquid storage district is spirality pipe.
The present invention also provides for a kind of water quality detection method, and it includes above-mentioned water quality detection pipe-line system, and its detecting step is:
1) described quantitative sampling device draws quantitative sample to described liquid storage district by described multiple valve；
2) described quantitative sampling device by described multiple valve by the sample delivery in carrier fluid and described liquid storage district to described reaction tank；
3) described quantitative sampling device draws quantitative reagent to described liquid storage district by described multiple valve；
4) reagent in carrier fluid and described liquid storage district is delivered to described reaction tank by described multiple valve by described quantitative sampling device；
5), after sample and reagent have reacted in described reaction tank, described detection device detects reaction liquid composition in described reaction tank；
6) positive pressure pump applies pressure in described reaction tank, is discharged through waste liquid outlet by described reaction tank.
Preferably, between described step 4) and step 5) further comprising the steps of 4.5) or step 4.6):
4.5) described quantitative sampling device by described multiple valve by air suction liquid storage district, by mutually isolated with sample or reagent for the carrier fluid in described liquid storage district；
4.6) described quantitative sampling device by described multiple valve by air suction liquid storage district；Air in described liquid storage district is delivered to reaction tank by described multiple valve by the most described quantitative sampling device, by liquid blending in pond.
Preferably, further comprising the steps of:
7) carrier fluid is delivered to described reaction tank by described multiple valve and is carried out operation by described quantitative sampling device, is then discharged cleaning complete carrier fluid through waste liquid outlet by described positive pressure pump.
A passage on multi-channel electromagnetic valve or multipassage rotary valve is connected by water quality detection pipe-line system and the detection method thereof of the present invention with air, a small amount of air is entered in the specific time in making pipeline by Row control, the most do not affect quantitatively, can will produce two sections of liquid of cross-contamination separately again, greatly reduce reagent consumption in test process, fundamentally solve the problem that the cross-contamination effects between reagent is measured.Waste discharge mode have selected air pump and coordinates with three-way valve, directly drains without multi-channel electromagnetic valve, and the problem of the cross-contamination produced by waste liquid the most thoroughly solves.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention；
Fig. 2 is the structural representation of second embodiment of the invention；
Fig. 3 is the structural representation of third embodiment of the invention；
Fig. 4 is the structural representation of fourth embodiment of the invention；
Fig. 5 is the structural representation of fifth embodiment of the invention；
Fig. 6 is the structural representation of sixth embodiment of the invention.
Detailed description of the invention
Below the detailed description of the invention of the present invention is described in further detail.
As shown in Figures 1 to 6, a kind of water quality detection pipe-line system of the present invention includes that multiple valve 10, multiple valve 10 use the multi-channel electromagnetic valve known to industry, multi-center selection valve or other similar functions valves.Multiple valve 10 includes multiple passage 12 and a normally opened public passage (passage) 14.One passage 12 of multiple valve 10 connects sample 16, and a passage 12 coupled reaction pond 18 (also can be by public passage 14 coupled reaction pond 18), several passages 12 each connect a reagent 20.A certain amount of sampler 22, its one end connects carrier fluid pond 24 to draw carrier fluid (such as water), and the other end connects behind liquid storage district 26 and is connected to multiple valve 10, and it can a passage 12 of connecting multi-channel valve 10, it is possible to be connected to the public passage 14 of multiple valve 10.Certainly, multiple valve 10 also may not include public passage 14 and only includes that several can control the passage 12 being turned on and off.Input and the outfan of quantitative sampling device 22 are interchangeable, in order to input the liquid in carrier fluid and liquid storage district 26 to reaction tank 18, also can sample 16 or reagent 20 be drawn in liquid storage district 26.Being provided with the detection device 28 of reaction liquid composition in detection reaction tank 18 at reaction tank 18, detection device 28 uses common structure, as supporting light source and light examine device.
Multiple valve 10 has two passages 12 to connect respectively at air, test sample.Quantitative sampling device 22 major function is to realize various reagent 20 and air and the quantitative sampling of sample by multiple valve 10；Various reagent 20 that public passage 14 major function is extracted out by depositing multiple valve 10 and sample air, for the most storing reagents 20 or sample, liquid storage district 26 is spiral type pipe；Multiple valve 10 major function is reagent 20, air and the sample selecting connection different；Reaction tank 18 and detection device 28 major function are discharged for detection and waste liquid.Waste discharge fluid path principle is as it can be seen, include two pipelines, and one connects positive pressure pump 30；Another connects the external world by check valve 32, its outlet i.e. waste liquid outlet 34.Check valve 32 can be wanted, it is also possible to not.
As it is shown in figure 1, in first embodiment of the invention, quantitative sampling device 22 is peristaltic pump, multiple valve 10 is multi-channel electromagnetic valve, and it has two passages 12 to be connected with air 35, sample 16 respectively.
As in figure 2 it is shown, in second embodiment of the invention, quantitative sampling device 22 is syringe pump.
As it is shown on figure 3, in third embodiment of the invention, multiple valve 10 is multi-center selection valve.
As shown in Figure 4, in fourth embodiment of the invention, after a reagent 20 is in parallel with air 35, access multiple valve 10.
As it is shown in figure 5, in fifth embodiment of the invention, reaction tank 18 is connected with the public passage 14 of multiple valve 10.
As shown in Figure 6, in sixth embodiment of the invention, quantitative sampling device 22 is connected with a path of multiple valve 10.
The step of its work is: 1) quantitative sampling device 22 draws quantitative sample 16 to public passage 14 by multiple valve 10；
2) sample 16 in carrier fluid and public passage 14 is delivered to reaction tank 18 by multiple valve 10 by quantitative sampling device 22；
3) quantitative sampling device 22 draws quantitative reagent 20 to public passage 14 by multiple valve 10；
4) reagent 20 in carrier fluid and public passage 14 is delivered to reaction tank 18 by multiple valve 10 by quantitative sampling device 22；
5), after sample 16 and reagent 20 have reacted in reaction tank 18, detection device 28 detects reaction liquid composition in reaction tank 18；
6) positive pressure pump 30 applies pressure in reaction tank 18, is discharged through waste liquid outlet 34 by reaction tank 18.Waste discharge mode have selected air pump and coordinates with three-way valve, directly drains without multi-channel electromagnetic valve, and the problem of the cross-contamination produced by waste liquid the most thoroughly solves.
Improve further and also include, setting steps 4.5 between step 4) and step 5)) or step 4.6):
4.5) described quantitative sampling device by described multiple valve by air suction liquid storage district, by mutually isolated with sample or reagent for the carrier fluid in described liquid storage district；
4.6) described quantitative sampling device by described multiple valve by air suction liquid storage district；Air in described liquid storage district is delivered to reaction tank by described multiple valve by the most described quantitative sampling device, and the gas entered in reaction tank floats rapidly, and the liquid in agitation reaction tank makes it fully mix.
Above example is only the present invention a kind of embodiment therein, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a water quality detection pipe-line system, it includes multiple valve, it is characterized in that: a passage of described multiple valve connects sample, another passage of described multiple valve or a normally opened public pipeline coupled reaction pond, at least one passage other of described multiple valve connects a reagent, one end of a certain amount of sampler connects carrier fluid, the other end of described quantitative sampling device connects another passage of described multiple valve or public pipeline, a liquid storage district is also set up between described quantitative sampling device and described multiple valve, input and the outfan of described quantitative sampling device are interchangeable, it is provided with at described reaction tank and detects the detection device of reaction liquid composition in described reaction tank；
One channel connection air of described multiple valve or simultaneously connect a reagent and air；
Described reaction tank pipeline connects a positive pressure pump, and described reaction tank connects waste liquid outlet by another pipeline.
Water quality detection pipe-line system the most according to claim 1, it is characterised in that: on the pipeline between described waste liquid outlet and described reaction tank, a check valve is set.
3. according to one of them described water quality detection pipe-line system of claim 1-2, it is characterised in that: described multiple valve is multi-channel electromagnetic valve or multi-center selection valve.
Water quality detection pipe-line system the most according to claim 3, it is characterised in that: described quantitative sampling device is peristaltic pump or syringe pump.
Water quality detection pipe-line system the most according to claim 4, it is characterised in that: described liquid storage district is spirality pipe.
6. a water quality detection method, it is characterised in that: it includes that such as claim 1-5 water quality detection pipe-line system as described in one of them, its detecting step is:
1) described quantitative sampling device draws quantitative sample to described liquid storage district by described multiple valve；
2) described quantitative sampling device by described multiple valve by the sample delivery in carrier fluid and described liquid storage district to described reaction tank；
3) described quantitative sampling device draws quantitative reagent to described liquid storage district by described multiple valve；
4) reagent in carrier fluid and described liquid storage district is delivered to described reaction tank by described multiple valve by described quantitative sampling device；
5), after sample and reagent have reacted in described reaction tank, described detection device detects reaction liquid composition in described reaction tank；
6) positive pressure pump applies pressure in described reaction tank, is discharged through waste liquid outlet by described reaction tank.
Water quality detection method the most according to claim 6, it is characterised in that: between described step 4) and step 5) further comprising the steps of 4.5) or step 4.6):
4.5) described quantitative sampling device by described multiple valve by air suction liquid storage district, by mutually isolated with sample or reagent for the carrier fluid in described liquid storage district；
4.6) described quantitative sampling device by described multiple valve by air suction liquid storage district；Air in described liquid storage district is delivered to reaction tank by described multiple valve by the most described quantitative sampling device, by liquid blending in pond.
Water quality detection method the most according to claim 7, it is characterised in that: further comprising the steps of:
7) carrier fluid is delivered to described reaction tank by described multiple valve and is carried out operation by described quantitative sampling device, is then discharged cleaning complete carrier fluid through waste liquid outlet by described positive pressure pump.
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| CN201410342240.XA CN104155422B (en) | 2014-07-18 | 2014-07-18 | Water quality detection pipeline system and method |
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| CN201410342240.XA CN104155422B (en) | 2014-07-18 | 2014-07-18 | Water quality detection pipeline system and method |
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| CN104155422B true CN104155422B (en) | 2017-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104764696A (en) * | 2015-04-08 | 2015-07-08 | 三峡大学 | Water quality heavy metal online sample detection system |
| CN106483277A (en) * | 2016-03-31 | 2017-03-08 | 广州万孚生物技术股份有限公司 | Vim and vigour biochemical reagents bag |
| CN105929124A (en) * | 2016-06-12 | 2016-09-07 | 深圳市清时捷科技有限公司 | On-line water quality analysis instrument and water quality analysis method thereof |
| CN106645618A (en) * | 2016-12-02 | 2017-05-10 | 安恒环境科技（北京）股份有限公司 | Automatic water quality monitoring long-distance quality controller |
| CN108519334B (en) * | 2018-04-08 | 2020-09-22 | 河南农业大学 | Automatic detection system and detection method for soil nutrients |
| CN109444366A (en) * | 2018-11-30 | 2019-03-08 | 苏州奥特福环境科技有限公司 | A kind of water quality analytical system and method |
| CN110596306A (en) * | 2019-10-17 | 2019-12-20 | 苏州卫水环保科技有限公司 | Water quality detection pipeline system and water quality detection method |
| CN112362583A (en) * | 2020-09-24 | 2021-02-12 | 孙成章 | System and method for quantitatively treating liquid |
| CN112730525B (en) * | 2020-12-25 | 2024-01-16 | 杭州绿洁科技股份有限公司 | Low-concentration trace water sample pH conductivity detector |
| CN113648161A (en) * | 2021-08-16 | 2021-11-16 | 深圳市第二人民医院(深圳市转化医学研究院) | Waste liquid collecting device for nephrology department and using method thereof |
| CN114235545B (en) * | 2022-02-21 | 2022-05-13 | 山东东润仪表科技股份有限公司 | High-precision sample introduction system and use method thereof |
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| CN2230446Y (en) * | 1994-07-21 | 1996-07-03 | 张珩林 | Multi-function flow injection device |
| CA2146177C (en) * | 1995-04-03 | 2000-09-05 | Adrian P. Wade | Intelligent flow analysis network |
| NL1006211C2 (en) * | 1997-06-03 | 1998-12-04 | Applikon B V | Analysis device. |
| US6613579B2 (en) * | 2001-02-02 | 2003-09-02 | Global Fia, Inc. | Sequential injection liquid-liquid extraction |
| AU2003225254A1 (en) * | 2002-04-30 | 2003-11-17 | Biowhittaker Technologies, Inc. | Automated sequential injection analysis systems for the determination of trace endotoxin levels |
| CN201210146Y (en) * | 2008-06-17 | 2009-03-18 | 聚光科技（杭州）有限公司 | Water quality on-line monitoring system |
| CN101782523B (en) * | 2010-03-03 | 2012-06-27 | 宇星科技发展(深圳)有限公司 | Method for online detecting arsenic content in water by using dithioantipyrine methane as color developing agent |
| CN102565433B (en) * | 2011-12-31 | 2014-03-12 | 聚光科技(杭州)股份有限公司 | High dilution factor water sample analysis method and device thereof |
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Address after: 215000 south side of 2F, building 8, No. 28, Jujin Road, Taiping Street, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: SUZHOU WEISHUI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: Xiangcheng District Taiping Street Suzhou city of Jiangsu Province Jin Cheng Road 215000 No. 88 Patentee before: SUZHOU WEISHUI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
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