CN103278463A - Detection device and method for content of emulsified oil in water - Google Patents
Detection device and method for content of emulsified oil in water Download PDFInfo
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- CN103278463A CN103278463A CN2013101860265A CN201310186026A CN103278463A CN 103278463 A CN103278463 A CN 103278463A CN 2013101860265 A CN2013101860265 A CN 2013101860265A CN 201310186026 A CN201310186026 A CN 201310186026A CN 103278463 A CN103278463 A CN 103278463A
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Abstract
The invention relates to a detection device and method for detecting the content of emulsified oil in water by means of a photoelectric method. The detection device for the content of the emulsified oil in the water comprises a cylindrical transparent sample cell (1) which is pervious to light, a light source (2) positioned at one side of the sample cell, an optical detector (3) positioned at the other side of the sample cell, a microprocessor (4) connected with the optical detector, and a power module (5) for supplying power for the microprocessor. The detection method comprises the steps of: switching on the light source; collecting continuous small-angle scattering light in the optical detector; and obtaining the concentration of the emulsified oil according to a scattering spectrum. According to the detection device and the detection method, detection results are not affected by the oil type or other organic interfering substances, and the detection device and the detection method can adapt to complex on-site environments, and are easy to operate, low in price and high in instrument sensitivity.
Description
Technical field:
The present invention relates to a kind of by oil emulsion content detection device and method in the water in the photoelectricity means detection water.
Background technology:
Often be accompanied by leakage and the pollution of oil in the exploitation of oil and transportation, the leakage problem of current mineral oil is serious day by day, has caused showing great attention to of various countries environmental administrations.The ecologic equilibrium of the oily serious harm water body in the water and human self health, oily substance can form oil film at the water surface, influence the gas exchange of empty G﹠W, be scattered in the water and be adsorbed on the particle or be present in oil in the water with emulsified state, when being decomposed by microorganism, to consume dissolved oxygen in water, make water quality deterioration easily.Therefore, detection for oil pollutant content in the water seems particularly important, yet, because oil molecule discrete form in water is various, comprise oil slick, dispersed oil, oil emulsion and dissolved oil, swim in the oil that the water surface exists with the oil slick form and be eliminated easily and detect, however the oil emulsion in the water and dissolved oil be difficult to be eliminated, be the technical barrier that the world faces for real-time, online, the continuous monitoring of the oil content of dissolving, emulsification in the water.
For after oily detection method generally is the collection in worksite water sample in the water, through carbon tetrachloride extraction, measure fluorescence or the infrared absorption value of oily ingredient at present, thereby obtain the content of oil in the water.These method complicated operations and experimental result are subject to the human factor influence.Conventional method comprises infrared spectrophotometer, ultraviolet fluorescence method etc., and the infrared spectrophotometer testing result also is subjected to the interference of oily kind and other organic substance easily, low concentration the time, the attenuation ratio of light a little less than, remolding sensitivity is lower.And the extractant that uses in the experimentation generally all contains toxicly, easily human body damaged, and experimental result is subject to the influence of manual operation factor.
Therefore, the detecting instrument and the method that need a kind of quick, easy and handling safety.
Summary of the invention:
The object of the present invention is to provide a kind of water sample extraction that need not, directly measure the apparatus and method of the concentration of oil emulsion in the water, further purpose is to provide the apparatus and method of the concentration of oil emulsion in a kind of online direct mensuration water continuously.
Oil emulsion content detection device in the water comprises:
The cylindrical transparent sample pond 1 that allows light to pass through,
Be positioned at the wherein light source 2 of a side of sample cell, be positioned at the photodetector 3 of sample cell opposite side, the microprocessor 4 that links to each other with photodetector provides the power module 5 of power supply for microprocessor;
The vertical and intersectant centerline in the center line of described light source light beam and cylindrical transparent sample pond, described photodetector linear array N optical detecting unit, the center line extended line of the line of N optical detecting unit and light source light beam intersects vertically, and the line of N optical detecting unit is vertical with the center line in cylindrical transparent sample pond.
The preferred quartz glass tube of described sample cell.
The preferred laser diode of described light source; The preferred 980nm laser diode of described laser diode.
The preferred linear array photodiode array detector of described photodetector; Described linear array photodiode array detector is preferably 102 photodiodes that distributing.
As further preferred version, also comprise: the device displaying result 11 that links to each other with microprocessor, the storage unit 14 that links to each other with microprocessor and button 9a, 9b, 9c, 9d; And described sample cell includes the mouth of a river 12 and water delivering orifice 13, can realize continuous detecting.
The oil emulsion detection method of content comprises the steps: in the water
Step 1: open light source;
Step 2: light beam is when containing the water sample of olesome, and light is by the olesome scattering, collects in the photodetector small angle scattering light continuously;
Step 3: the concentration that obtains oil emulsion according to scattering spectrum.
As further scheme, described quartz ampoule is the cylindrical quartz pipe; And described light source is selected 980 laser diodes, and the microprocessor per second sends a monopulse driving laser diode and sends a light pulse, and the burst length is 2ms; And described photodetector is the linear array photodiode array detector, 102 photodiodes that distributing, its position deviation incident ray center line below 4mm.
The present invention is with respect to the advantage of prior art:
(1) adopt light scattering to detect principle, the instrument volume is less, and is easy for installation.
(2) testing result is not subjected to the influence of oily kind and other organic chaff interference, can adapt to complicated site environment, and is simple to operate, low price, instrumental sensitivity height.
(3) in preferred version, testing result shows that by display device storage unit and button can be realized the inquiry to historical data.
The host computer interface of reserving by instrument can realize and the communicating by letter of host computer that whole apparatus structure is simple, volume is less.
Description of drawings:
Fig. 1 is structural representation of the present invention.Among the figure, 1 representative sample pond, 2 represent light source, and 3 represent photodetector, and 4 represent microprocessor, and 5 represent power module.
Fig. 2 is the principle schematic of technical scheme among the embodiment 1.Among the figure, 1 representative sample pond, 2 represent light source, and 6 represent olesome, and 7,8 represent the initial and end photodiode on the photodetector respectively.
Fig. 3 is the structural representation of technical scheme among the embodiment 1.Among the figure, 1 representative sample pond, 5 represent power module, and 9a, 9b, 9c, 9d represent button respectively, and 10 represent the host computer interface, and 11 represent display device, and 12 represent water inlet, and 13 represent water delivering orifice.
Embodiment:
The instrument system block diagram as Figure 1-3, oil emulsion content detection device in the water, comprise: housing 14, the sample cell 1 that allows light to pass through, sample cell is the cylindrical quartz glass pipe, internal diameter 20mm, external diameter 26mm, water inlet 12 is positioned at cylindrical quartz glass pipe lower end, and water delivering orifice 13 is positioned at cylindrical quartz glass pipe upper end; Be positioned at the wherein light source 2 of a side of sample cell, described light source is the 980nm laser diode, and per second sends a monopulse driving laser diode and sends a light pulse, and the burst length is 2ms; Be positioned at the photodetector 3 of sample cell opposite side, described photodetector is the linear array photodiode array detector, and integrated 102 photodiodes 7 of order, 8,
Departing from incident ray central lower 4mm;
The microprocessor 4 that links to each other with photodetector provides the power module 5 of power supply for microprocessor.
Testing process is as follows:
Step 1: open light source;
Step 2: light beam is when containing the water sample of olesome, and light is by olesome 6 scatterings, collects in the photodetector small angle scattering light continuously;
Step 3: the concentration that obtains oil emulsion according to scattering spectrum.
Because the oil emulsion in the water is present in the water with the particles with different sizes form, when the light beam that sends when LASER Light Source passes the water sample that contains olesome, light can be by the olesome scattering, by tactic 102 photodiodes 7,8 on the detecting device, can obtain continuous low-angle scattered light in the light field, the continuity point scattered light that 102 photodiodes collect distributes and just is equivalent in the space continuously that the scattered light of scattering angle distributes, and can obtain the distribution of forward direction small angle scattering light in the light field like this.Microprocessor 4 calculates the content of oil in the water according to the light scattering signal that collects, testing result is by display device 11---liquid crystal display shows in real time, be built in the testing result of oil in water of storage unit per minute record of instrument internal, can conveniently check historical record by button 9a, 9b, 9c, 9d and display device 11, can communicate and data upload with host computer by host computer interface 10.
Instrument adopts continuous low-angle light scattering method to measure the content of micro oil in the water, testing result is not subjected to the influence of oily kind and other organic chaff interference, can adapt to the requirement of varying environment, and instrument has stronger antijamming capability, highly sensitive, can real-time online detect the content of oil emulsion in the water.Be applicable to fields such as pipeline, boiler Oil Leakage Detecting and the detection of bilge-water oil content.
Claims (10)
1. oil emulsion content detection device in the water is characterized in that, comprising:
The cylindrical transparent sample pond (1) that allows light to pass through,
Be positioned at the wherein light source of a side (2) of sample cell, be positioned at the photodetector (3) of sample cell opposite side, the microprocessor that links to each other with photodetector (4) provides the power module (5) of power supply for microprocessor;
The vertical and intersectant centerline in the center line of described light source light beam and cylindrical transparent sample pond, described photodetector linear array N optical detecting unit, the center line extended line of the line of N optical detecting unit and light source light beam intersects vertically, and the line of N optical detecting unit is vertical with the center line in cylindrical transparent sample pond.
2. according to oil emulsion content detection device in the described water of claim 1, it is characterized in that: described sample cell is quartz glass tube.
3. according to oil emulsion content detection device in the described water of claim 1, it is characterized in that: described light source is laser diode.
4. according to oil emulsion content detection device in the described water of claim 3, it is characterized in that: described laser diode is the 980nm laser diode.
5. according to oil emulsion content detection device in the described water of claim 1, it is characterized in that: described photodetector is the linear array photodiode array detector.
6. according to oil emulsion content detection device in the described water of claim 5, it is characterized in that: described N=102.
7. according to oil emulsion content detection device in any one described water of claim 1-6, it is characterized in that, also comprise: the display device that links to each other with microprocessor (11).
8. according to oil emulsion content detection device in the described water of claim 7, it is characterized in that, also comprise: the storage unit that links to each other with microprocessor (14) and button (9a, 9b, 9c, 9d); And described sample cell includes the mouth of a river (12) and water delivering orifice (13), can realize continuous detecting.
9. oil emulsion detection method of content in the water that claim 1 realizes is characterized in that, comprises the steps:
Step 1: open light source;
Step 2: light beam is when containing the water sample of olesome, and light is by the olesome scattering, collects in the photodetector small angle scattering light continuously;
Step 3: the concentration that obtains oil emulsion according to scattering spectrum.
10. according to oil emulsion detection method of content in the described water of claim 9, it is characterized in that described quartz ampoule is the cylindrical quartz pipe;
And described light source is selected 980 laser diodes, and the microprocessor per second sends a monopulse driving laser diode and sends a light pulse, and the burst length is 2ms;
And described photodetector is the linear array photodiode array detector, N=102, its position deviation incident ray center line below 4mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101860265A CN103278463A (en) | 2013-05-17 | 2013-05-17 | Detection device and method for content of emulsified oil in water |
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| CN2013101860265A CN103278463A (en) | 2013-05-17 | 2013-05-17 | Detection device and method for content of emulsified oil in water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674858A (en) * | 2013-09-18 | 2014-03-26 | 江西龙天茶业有限公司 | Method and device for rapidly detecting liquor color of tea water |
| CN105891073A (en) * | 2016-04-05 | 2016-08-24 | 西安西热电站化学科技有限公司 | Online detection device and method for iron content in thermodynamic system start washing water |
| CN106908360A (en) * | 2017-04-11 | 2017-06-30 | 珠海真理光学仪器有限公司 | A kind of laser particle size analyzer with annular measuring cell |
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| JP2000146696A (en) * | 1998-11-05 | 2000-05-26 | Mk Seiko Co Ltd | Method and device for judging degradation of oil and the like |
| US20120120388A1 (en) * | 2010-10-29 | 2012-05-17 | Roche Diagnostics Operations, Inc. | System for Performing Scattering and Absorbance Assays |
| CN203259467U (en) * | 2013-05-17 | 2013-10-30 | 天津大学 | Content detection device for emulsified oil in water |
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2013
- 2013-05-17 CN CN2013101860265A patent/CN103278463A/en active Pending
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| JP2000146696A (en) * | 1998-11-05 | 2000-05-26 | Mk Seiko Co Ltd | Method and device for judging degradation of oil and the like |
| US20120120388A1 (en) * | 2010-10-29 | 2012-05-17 | Roche Diagnostics Operations, Inc. | System for Performing Scattering and Absorbance Assays |
| CN203259467U (en) * | 2013-05-17 | 2013-10-30 | 天津大学 | Content detection device for emulsified oil in water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674858A (en) * | 2013-09-18 | 2014-03-26 | 江西龙天茶业有限公司 | Method and device for rapidly detecting liquor color of tea water |
| CN103674858B (en) * | 2013-09-18 | 2016-04-20 | 江西科益茶业有限公司 | A kind of tea soup look method for quick and device |
| CN105891073A (en) * | 2016-04-05 | 2016-08-24 | 西安西热电站化学科技有限公司 | Online detection device and method for iron content in thermodynamic system start washing water |
| CN106908360A (en) * | 2017-04-11 | 2017-06-30 | 珠海真理光学仪器有限公司 | A kind of laser particle size analyzer with annular measuring cell |
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Application publication date: 20130904 |