CN202710476U - Probe-type on-line monitoring system for water body petroleum pollutant - Google Patents
Probe-type on-line monitoring system for water body petroleum pollutant Download PDFInfo
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- CN202710476U CN202710476U CN 201220392035 CN201220392035U CN202710476U CN 202710476 U CN202710476 U CN 202710476U CN 201220392035 CN201220392035 CN 201220392035 CN 201220392035 U CN201220392035 U CN 201220392035U CN 202710476 U CN202710476 U CN 202710476U
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Abstract
The utility model relates to a probe-type on-line monitoring system for water body petroleum pollutant. The probe-type on-line monitoring system comprises an excitation light source, a detector and a control circuit board, wherein the excitation light source is used for transmitting ultraviolet light to the surface of a water body to be detected at a certain angle. A light input end of the detector is provided with a light filter for receiving fluorescent light reflected from the surface of the water body to be detected. The control circuit board connects the detector and a control end of the excitation light source, and is used for collecting fluorescence signals, temperature, and calculating for petroleum pollutant concentration in the water body, and is connected with an upper computer through a transmission cable. The probe-type on-line monitoring system adopts ultraviolet light emitting diodes (LED) with lower power consumption as the excitation light source, utilizes fluorescence characteristic of the petroleum pollutant to carry out concentration measurement, is high in sensitivity, high in measurement speed, and simple in procedure, and can be applied to on-line monitoring for the petroleum pollutant in various water areas.
Description
Technical field
The utility model relates to water body oils monitoring field, is specially a kind of sonde-type petroleum polluting water body thing on-line monitoring system and method.
Background technology
Entered since 21 century, be accompanied by the high speed development of national economy, the rivers of China, lake and marine environment water quality also have been subjected to serious broken ring.Its PetroChina Company Limited. and products thereof enters water body environment in exploitation, refining, storing and use procedure, thereby the petroleum-type that has formed the China coastal seas marine site is polluted.The oil product Movement routes has: the refinery oily waste water is through the river or directly inject the ocean; The oil carrier leakage of oil, discharge or have an accident, make oil product directly into the sea; Spill and leakage and the blowout of submarine oil field in recovery process makes oil enter ocean water body; The local natural oil spilling of ocean bottom.
Therefore, all kinds of waters petroleum class pollutant is effectively monitored and managed, especially develop the real-time dynamic monitoring technology and have great social effect and economic worth.
Carry out water body oils measurement method commonly used nephelometry, ultrasonic method, light scattering method, gravimetric method, NDIR (Non-Dispersive Infrared) absorption process, infrared spectrophotometer, chromatography, ultraviolet absorption method, fluorimetry, ultraviolet fluorescence method are arranged.Wherein nephelometry, ultrasonic method, light scattering method only work to the dispersed oil in the water body, because they can't detect the low concentration petroleum hydrocarbon that is dissolved in the water.Gravimetric method sensitivity is not high, and can cause the loss of low boiling alkane.The NDIR (Non-Dispersive Infrared) absorption process is because mineral oil composition (containing respectively C-H stretching vibration in 2930cm-1(=CH2 in alkane, naphthenic hydrocarbon and the aromatic hydrocarbon), C-H stretching vibration among the 2960cm-1(-CH2), C-H stretching vibration in the 3030cm-1(aromatic rings) locates the different component of absorption band, if the relative value of these components changes, obviously be difficult to survey accurate with the NDIR (Non-Dispersive Infrared) absorption process of only measuring at a certain wave number place.Infrared spectrophotometer is owing to the absorbance that can measure simultaneously or sequentially above-mentioned three wave number places (is A2930, A2960, A3030), and disturb little at these three wave number places, the total concentration of mineral oil can be tried to achieve at an easy rate by suitable calculating, thereby above-mentioned most of shortcoming can be avoided.Chromatography can be measured a plurality of components, but time-consuming, bothersome.Compare with said method, ultraviolet fluorescence method is real-time online measuring easily, and tested water body need not done any processing, and is easy and simple to handle, fast, has a extensive future, and becomes the focus of research.The molecule of fluorescent material can have several different absorption peak bands in the extinction process, different fluorescent materials is because the difference of molecular structure and energy distribution, demonstrate separately different Absorption and fluorescence spectrum characteristics, this has just determined that Fluorescence Method has very high selectivity and sensitivity.
The utility model content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of fluorescent technique based on ultraviolet LED, the complicated step such as do not need to extract, measure fast, low in energy consumption, can realize to water body PetroChina Company Limited. pollutant long-term, in real time, the sonde-type petroleum polluting water body thing on-line monitoring system of on-line measurement.
The technical scheme that the utility model adopts for achieving the above object is: a kind of sonde-type petroleum polluting water body thing on-line monitoring system comprises
Excitation source is used for emitting ultraviolet light, shines at a certain angle water surface to be measured;
Detector, the input end of light is equipped with optical filter, is used for receiving the fluorescence that water surface to be measured reflects;
Control circuit board, the control end of connection detector and excitation source is used for fluorescence signal collection, temperature acquisition, the pollutant levels calculating of water body PetroChina Company Limited., is connected to host computer by transmission cable.
Described excitation source, detector, control circuit board are fixed in the cavity, and the below of cavity is the flow cell that water body to be measured is housed.
Described water body to be measured top is fixed with the quartzy window of exclusion of water steam.
Described excitation source is ultraviolet LED, and centre wavelength is 365nm.
It is the bandpass filter of 420-600nm that described optical filter adopts centre wavelength.
Described detector is photodiode.
Described control circuit board is that model is the single-chip microcomputer of MSP43f149, comprising:
The control module module connects transmitter unit module and data processing module, is used for the control to transmitter unit module and data processing module;
The transmitter unit module, input end connection control unit module, output terminal connects excitation source, is used for the work of control excitation source;
Data processing module receives the electric signal from the reflection fluorescence intensity of detector transmission, gets the concentration of water-outlet body PetroChina Company Limited. pollutant according to the corresponding relation of fluorescence intensity and water body PetroChina Company Limited. pollutant levels, and connects host computer by transmission cable.
Described control circuit board also connects temperature sensor, adopts the temp probe of thermistor, closely abuts on the cavity.
The utility model specifically has following beneficial effect:
1. whole observation process such as need not extract at the complicated means, and is with safeguarding, simple and practical hardly, is applicable to long-term unattended surveillance;
2. whole equipment seals with cavity, has good capability of electromagnetic shielding, strong interference immunity, and reliability is high, can satisfy the applications of electromagnetic environment complexity;
3. the utility model device has temperature detecting unit and is installed on the cavity, can Real-time Obtaining scene temperature data, and the temperature at control survey scene;
4. the transmitter unit of the utility model device and receiving element are the integrated design, and by quartzy window sealing, can prevent effectively that water vapour from entering into detector;
5. the utility model adopts the high brightness ultraviolet light-emitting diode as light source, adopts the sealing of high strength cavity, compact conformation, withstand voltage, and anti-interference is good, both can immersion measurement, add and join flow cell and can realize that again flow type measures.
6. the utility model both can handheld operation, and the field observation measurement result also can be passed through remote communication interface, realized the unmanned monitoring of long-term, fixed point, automatic data collection and transmission.The utility model can be widely used in the environmental monitoring in the zone such as seawater, lake water, refinery, and is with low cost, production technology is simple, has widely market application foreground.
Description of drawings
Fig. 1 is the general structure synoptic diagram of the utility model system;
Fig. 2 is the module diagram of the utility model control circuit board;
Fig. 3 is the embodiment physical construction synoptic diagram of the utility model system;
Fig. 4 is the embodiment synoptic diagram of the integrated design structure of the utility model optoelectronic components;
Fig. 5 is the embodiment schematical top view of the utility model optoelectronic components;
Fig. 6 is the utility model embodiment oil pollution substrate concentration---fluorescence intensity measurement curve.
Wherein 1 is that cavity, 2 is that excitation source, 3 is that quartzy window, 4 is that flow cell, 5 is that optical filter, 6 is that detector, 7 is that control circuit board, 8 is that temperature sensor, 9 is that transmission cable, 10 is that cable interface, 11 is that water inlet, 12 is that water delivering orifice, 13 is that light source inspecting hole, 14 is that detector inspecting hole, 15 is that installation screw 1,16 is that installation screw 2,17 is that installation screw 3,18 is that installation screw 4,19 is the connecting thread mouth.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As shown in Figure 1, be the structural representation of the utility model embodiment device; Comprise cavity 1 and be built in transmitter unit, receiving element and control circuit board 7 in the cavity 1; Wherein: transmitter unit is the excitation source 2 of emitting ultraviolet light, shines in water body or the flow cell 4 through quartzy window 3, and what excitation source 2 adopted is ultraviolet LED, and centre wavelength is 365nm.
Excitation source 2 shines water body to be measured under the control of control circuit board 7, water body petroleum class pollutant sends fluorescence signal under action of ultraviolet light;
Receiving element, optical filter 5 before comprising photodetector 6 and being positioned at photodetector 6, fluorescence signal is after filtration after the filtration of mating plate 5, through photodetector 6 light signal is converted into electric signal, optical filter 5 adopts the bandpass filter optical filter of 420-600nm in the present embodiment, and photodetector 6 is photodiode.
As shown in Figure 2, be the module diagram of the utility model embodiment control circuit board.Control circuit board 7 comprises: control module module, transmitter unit module, data processing module.The control module module is connected with transmitter unit module, data processing module respectively.Light signal and the data acquisition control of control excitation source 2.
Control circuit board 7 is responsible for collection, temperature acquisition, concentration calculating, the data of fluorescence signal and is preserved, it is the MSP43f149 single-chip microcomputer that control circuit board 7 adopts model, the core of whole control, transmission, data acquisition, the data of being responsible for order process and with the communication function of host computer.
The transmitter unit module, the input end of its output terminal excitation source 2 connects, and is used for the work of control excitation source;
The input end of data processing module is connected with receiving element, is used for receiving the fluorescence signal that produces from excitation source 2, and output terminal realizes that by waterproof transmission cable 9 and host computer communication is connected.Data processing module calculates the concentration of water body PetroChina Company Limited. pollutant according to the data of collecting.
Temperature detecting unit also is installed in the cavity 1, and temperature detecting unit comprises the temp probe 8 that closely abuts on the cavity 1, and temp probe adopts thermistor in the present embodiment, and temp probe closely abuts on the Stainless Steel Shell.The output terminal of temperature detecting unit links to each other with an input end of control circuit board 7 by signal wire, temperature detecting unit measures ambient temperature before detection, and the survey data communication device is crossed signal wire be sent to storage area in the control circuit board 7, be used for the temperature of record environment.
As shown in Figure 3, be the physical construction synoptic diagram of the utility model embodiment.Transmitter unit and receiving element be by connecting as one of fixture structure, and be provided with excitation source 2 on the fixture inspecting holes 13 are installed, the installation inspecting hole 14 of detector 6, inspecting hole 13,14 printing opacity end are sealed and installed with quartz window 3.During installation, photodetector 6 passes mounting hole 14, and excitation source 2 passes inspecting hole 13, because quartz window 3 is installed, transmitter unit and receiving unit form enclosed construction, can prevent that water vapour from entering into rust steel cavity 1, the control circuit board 7 that protection is inner.
The circuit part of whole utility model device adopts cavity 1 hermetically-sealed construction, has good capability of electromagnetic shielding.The transmission of signal and supply line are transferred to host computer by cable interface 10.
The utility model both can adopt immersion measurement, also can adopt flow type to measure.
As shown in Figure 4, be the integrated design structural representation of the utility model embodiment optoelectronic components.
Excitation source 2 is installed inspecting hole 13, and the center line angle of the installation inspecting hole 14 of detector 6 is 20 degree.These parts are connected with the screw thread 19 that links of flow cell, and these parts are connected by screw 15,16,17,18 with cavity 1, and the material of optoelectronic components is black nylon.
As shown in Figure 5, be the schematical top view of the utility model embodiment optoelectronic components, connect cavity and optoelectronic components by screw 15,16,17,18.
As shown in Figure 6, be the utility model embodiment oil pollution substrate concentration---fluorescence intensity measurement curve.Measuring sample is the standard solution that Laboratory Calibration is used, and the effective constituent of standard solution is naphthalene disulfonic acid disodium salt, and wherein, horizontal ordinate is the concentration of petroleum-type pollutant, and ordinate is the fluorescence signal intensity that obtains.From measurement result, exist good linear relationship between the fluorescence signal that variable concentrations is measured and the concentration of petroleum pollution.
Claims (8)
1. a sonde-type petroleum polluting water body thing on-line monitoring system is characterized in that, comprises
Excitation source (2) is used for emitting ultraviolet light, shines at a certain angle water surface to be measured;
Detector (6), the input end of light are equipped with optical filter (5), are used for receiving the fluorescence that water surface to be measured reflects;
Control circuit board (7), the control end of connection detector (6) and excitation source (2) is used for fluorescence signal collection, temperature acquisition, the pollutant levels calculating of water body PetroChina Company Limited., is connected to host computer by transmission cable (9).
2. a kind of sonde-type petroleum polluting water body thing on-line monitoring system according to claim 1, it is characterized in that: described excitation source (2), detector (6), control circuit board (7) are fixed in the cavity (1), and the below of cavity (1) is the flow cell (4) that water body to be measured is housed.
3. a kind of sonde-type petroleum polluting water body thing on-line monitoring system according to claim 1 is characterized in that: the quartzy window (3) that is fixed with exclusion of water steam above the described water body to be measured.
4. a kind of sonde-type petroleum polluting water body thing on-line monitoring system according to claim 1, it is characterized in that: described excitation source (2) is ultraviolet LED, and centre wavelength is 365nm.
5. a kind of sonde-type petroleum polluting water body thing on-line monitoring system according to claim 1 is characterized in that: it is the bandpass filter of 420-600nm that described optical filter (5) adopts centre wavelength.
6. a kind of sonde-type petroleum polluting water body thing on-line monitoring system according to claim 1, it is characterized in that: described detector (6) is photodiode.
7. a kind of sonde-type petroleum polluting water body thing on-line monitoring system according to claim 1, it is characterized in that: described control circuit board (7) is that model is the single-chip microcomputer of MSP43f149, comprising:
The control module module connects transmitter unit module and data processing module, is used for the control to transmitter unit module and data processing module;
The transmitter unit module, input end connection control unit module, output terminal connects excitation source (2), is used for the work of control excitation source (2);
Data processing module, reception is from the electric signal of the reflection fluorescence intensity of detector (6) transmission, get the concentration of water-outlet body PetroChina Company Limited. pollutant according to the corresponding relation of fluorescence intensity and water body PetroChina Company Limited. pollutant levels, and pass through transmission cable (9) connection host computer.
8. a kind of sonde-type petroleum polluting water body thing on-line monitoring system according to claim 1, it is characterized in that: described control circuit board (7) also connects temperature sensor (8), adopts the temp probe of thermistor, closely abuts on the cavity (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392035 CN202710476U (en) | 2012-08-09 | 2012-08-09 | Probe-type on-line monitoring system for water body petroleum pollutant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392035 CN202710476U (en) | 2012-08-09 | 2012-08-09 | Probe-type on-line monitoring system for water body petroleum pollutant |
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| CN202710476U true CN202710476U (en) | 2013-01-30 |
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| CN 201220392035 Expired - Lifetime CN202710476U (en) | 2012-08-09 | 2012-08-09 | Probe-type on-line monitoring system for water body petroleum pollutant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866136A (en) * | 2012-08-09 | 2013-01-09 | 中国科学院烟台海岸带研究所 | Probe type on-line monitoring system and probe type on-line monitoring method for water petroleum pollutants |
| CN107490555A (en) * | 2017-05-09 | 2017-12-19 | 安徽环美智能科技有限公司 | A kind of water pollutant concentration intelligent detection device |
| CN107748149A (en) * | 2017-09-28 | 2018-03-02 | 中国石油天然气集团公司 | Online oil-polluted water detection means and detection method based on ultraviolet fluorescence method |
| CN107796794A (en) * | 2017-09-28 | 2018-03-13 | 中国石油天然气集团公司 | Online oil-polluted water detection method based on ultraviolet fluorescence method |
-
2012
- 2012-08-09 CN CN 201220392035 patent/CN202710476U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866136A (en) * | 2012-08-09 | 2013-01-09 | 中国科学院烟台海岸带研究所 | Probe type on-line monitoring system and probe type on-line monitoring method for water petroleum pollutants |
| CN107490555A (en) * | 2017-05-09 | 2017-12-19 | 安徽环美智能科技有限公司 | A kind of water pollutant concentration intelligent detection device |
| CN107748149A (en) * | 2017-09-28 | 2018-03-02 | 中国石油天然气集团公司 | Online oil-polluted water detection means and detection method based on ultraviolet fluorescence method |
| CN107796794A (en) * | 2017-09-28 | 2018-03-13 | 中国石油天然气集团公司 | Online oil-polluted water detection method based on ultraviolet fluorescence method |
| CN107748149B (en) * | 2017-09-28 | 2020-09-01 | 中国石油天然气集团有限公司 | Online oily sewage detection device and detection method based on ultraviolet fluorescence method |
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| GR01 | Patent grant | ||
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Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |