CN104181320A - Method for detecting chemical oxygen demand by using solar power water-borne monitoring buoy - Google Patents
Method for detecting chemical oxygen demand by using solar power water-borne monitoring buoy Download PDFInfo
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- CN104181320A CN104181320A CN201410465792.XA CN201410465792A CN104181320A CN 104181320 A CN104181320 A CN 104181320A CN 201410465792 A CN201410465792 A CN 201410465792A CN 104181320 A CN104181320 A CN 104181320A
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- oxygen demand
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The invention relates to a method for detecting chemical oxygen demand by using a solar power water-borne monitoring buoy, which mainly solves the problem that the conventional water-borne monitoring buoy cannot accurately measure the chemical oxygen demand. The method is applied to the solar power water-borne monitoring buoy, the water quality is measured by using an optical detector, a high pressure gas cylinder serves as a gas source, the gas source is controlled by adopting a controller and is reasonably and effectively turned on and off, high-pressure gas flow is generated, and a chemical oxygen demand detector is cleaned, so that the chemical oxygen demand is accurately measured, and the method can be applied to the field of water quality monitoring in rivers, lakes and the sea.
Description
Technical field
The present invention relates to a kind of method that solar powered monitering buoy waterborne detects chemical oxygen demand (COD), can be used to the COD monitoring field of the water quality such as rivers,lakes and seas.
Background technology
On existing buoy waterborne, all there is no integrated chemical oxygen demand monitoring parameter at present, its main cause is the measurement of traditional chemical oxygen demand, difficult point is need in water sample, add excessive potassium dichromate standard solution before measurement, and make catalyzer with silver salt under strong acid media, again after heating and decompose, excessive potassium dichromate is taking ferroin as indicator, carries out titration with iron ammonium sulfate, calculates CODCr value.In measuring process, certainly lead to waste liquid, need collection and treatment.Therefore the method is generally applied in laboratory and water station, needs human intervention and operation.
Optical detecting method uses on buoy and also has difficulties on the water in addition, and after long-time use, the attachment on the optical window of fluorescence detector is matter of utmost importance, not only has influence on the accuracy of measurement, makes what is more instrument not measure.
The present invention passes through to adopt fluorescence detector, and before each measurement, optical element is carried out to high pressure washing, removes the attachment of optical element, has well solved measurement and the accuracy of chemical oxygen demand (COD) on buoy waterborne.The method environmental protection, does not produce waste liquid simultaneously, can tested water body not produced and be polluted.
Summary of the invention
Technical matters solved by the invention is cannot integrated chemical oxygen demand measurement parameter in the past solar powered buoy and the present situation that cannot effectively clean Systems for optical inspection, makes the distortion of chemical oxygen demand (COD) measurement parameter or cannot work.The invention provides a kind of method that novel monitering buoy solar powered waterborne detects chemical oxygen demand (COD), this monitering buoy waterborne is for crucial water quality parameters such as river course, lake and multi-sensor chemical oxygen demand (COD), have that volume is little, cost is low, Monitoring Data is advantage accurately and reliably.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of solar powered monitering buoy waterborne detects the method for chemical oxygen demand (COD), and the process that detects chemical oxygen demand (COD) comprises:
A) adopt monitering buoy waterborne, wherein detection system storehouse 7 is positioned at monitering buoy buoyancy aid below, is positioned at below the water surface when monitoring waterborne, has opening on detection system Cang7Bi, and tested water body enters in detection system storehouse 7 by opening; Chemical oxygen demand detection device 10 is positioned in detection system storehouse 7, and chemical oxygen demand detection device 10 is immersed in tested water body;
B) detected water sample flows through on chemical oxygen demand detection device 10 utilizing emitted light unit and receives between light unit; Before measurement, control air valve by air valve controller 8, switch source of the gas, produces high pressure draught, cleans utilizing emitted light unit and connects light receiving unit;
C) after cleaning, chemical oxygen demand detection device 10 detects, and the result of detection sends data to collector by communication interface.
In technique scheme, monitering buoy waterborne comprises buoyancy aid 6, solar panel 4, source of the gas 3 electronics storehouse 5 and balance devices; In electronics storehouse 5, there are data acquisition unit, air valve 9, air valve controller 8.
In technique scheme, air valve controller 8 is electrical connection with air valve 9, and air valve 9 and source of the gas 3 are connected for gas circuit, and air valve 9 and detecting device 10 are connected for tracheae; Monitering buoy waterborne has GPS orientator, solar recharging Management Controller, accumulator; Wherein, the buoyancy aid of monitering buoy waterborne adopts Foam of Ionomer material, and its diameter is 1～2.5m, and general assembly (TW) is 100～500kg.In air valve controller 8, there is timer and power-on switch.Source of the gas is provided by air compressor or gas cylinder.Air valve 9 is gas solenoid valve, and solenoid valve is without internal leakage, and net sectional area is 6～12mm
2, the magnetic time is 0.03～0.05 second, operating frequency is 3～5 times/second.The interior filling of source of the gas 3 is nitrogen, carbon dioxide or air.It is sapphire minute surface that chemical oxygen demand detection device 10 utilizing emitted light unit and reception light unit isolate wherein optical element by optical element and detected solution.The diameter of buoy is 1.0～1.5m, and general assembly (TW) is 140～170kg.The solar panels that solar panel is 30～50W by 2～4 power form; The lead-acid battery that accumulator is 50～70AH by 2～4 accumulator capacities forms.
Brief description of the drawings
Fig. 1 is a kind of solar powered monitering buoy structural map waterborne.
Fig. 2 is the present invention, the composition diagram of the automatic cleaning part of solar powered monitering buoy waterborne.
Fig. 1: 1 is navigation light, 2 is solar-cell panel support, and 3 is gas cylinder, and 4 is solar panel, and 5 is electronics storehouse, and 6 is buoyancy aid, and 7 is detecting device storehouse.
Fig. 2: 8 is controller, 9 is air valve, 10 is chemical oxygen demand detection device.
As shown in Figure 1 and Figure 2, gas cylinder 3 is fixed on solar battery bracket 2, controller 8 and air valve 9 are arranged in 5 li, the electronics storehouse of buoyancy aid 6, controller 8 and air valve 9 are by electrical connection, the tracheae path two ends of air valve 9 are connected to respectively gas cylinder 3 and are positioned at the chemical oxygen demand detection device 10 of the buoyancy aid other end, chemical oxygen demand detection device 10 is positioned in detecting device storehouse 7, control the opening and closing of air valve 9 by controller 8, make high pressure draught rush at chemical oxygen demand detection device 10, drive detected solution around, rinse detecting device.
Detection system position in storehouse, in monitering buoy buoyancy aid below, is positioned at while normally work below the water surface, has many openings on detection system bulkhead, and outside tested water body enters in detection system storehouse by opening.Chemical oxygen demand detection device is positioned in detection system storehouse, and chemical oxygen demand detection device can be immersed in tested water body.Detected water sample flows through utilizing emitted light place on chemical oxygen demand detection device and receives the light path between light place.Before each measurement, by air valve controller control air valve, rationally effective switch source of the gas, produces high pressure draught, reaches the sapphire minute surface that cleans utilizing emitted light place and connect light receiving area, makes light path more clear.After cleaning finishes, chemical oxygen demand detection device detects, and the result of detection sends data to collector by communication interface.
Below by embodiment, the invention will be further elaborated.
Embodiment
[embodiment 1]
On river course, Suzhou, adopt of the present invention solar powered monitering buoy waterborne as shown in Figure 1, COD to river detects, the buoyancy aid diameter of this monitering buoy is 1.2m, heavy 150kg, high 2m, 1 of timer, 1 of power-on switch, 3 of solar panels 40w power, 2 of accumulator 66AH capacity, in the gas cylinder of 8L, pressurized air is housed, chemical oxygen demand (COD) fluorescence detector detects once for every 30 minutes, before detecting, rinse detecting device by Air Valve Control gas cylinder, control air valve is opened and is rinsed for 2.5 seconds, in this river course, per half an hour, is detected a secondary data, instrument is in detecting, the water sample that manually gathers buoyancy aid limit with sample cup is for comparative example, continuous 15 data results in the 450min that monitering buoy gathers are as shown in table 1, unit: mg/L.
Table 1
| Numbering | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Data | 4.70 | 4.68 | 4.70 | 4.66 | 4.86 | 4.83 | 4.85 | 4.88 | 4.86 | 4.82 | 4.84 | 4.84 | 4.83 | 4.85 | 4.85 |
[comparative example] by the artificial same time point water sample gathering, the use for laboratory classic method of taking away analyzing and testing, and data result is in table 2, unit: mg/L.
Table 2
| Numbering | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Data | 5.02 | 4.84 | 4.83 | 4.57 | 5.23 | 5.14 | 5.23 | 5.14 | 5.07 | 4.95 | 4.99 | 4.79 | 5.03 | 4.79 | 5.31 |
15 data results in embodiment 1 and comparative example are compared, wherein absolute error between-0.46～0.09, relative error at data result in table 3.
Table 3
By above-mentioned analysis, the measured value of monitering buoy employing fluorescence detector and laboratory measurement value numerical value and variation tendency are coincide, and the method that can be used as online water quality monitoring chemical oxygen demand (COD) is applied.
Claims (10)
1. solar powered monitering buoy waterborne detects a method for chemical oxygen demand (COD), and the process that detects chemical oxygen demand (COD) comprises:
A) adopt monitering buoy waterborne, tested water body enters in detection system storehouse (7) by opening; Flow through and be positioned over the interior chemical oxygen demand (COD) detecting device in detection system storehouse (7) (10);
B) detected water sample flows through the upper utilizing emitted light unit of chemical oxygen demand detection device (10) and receives between light unit; Before measurement, control air valve by air valve controller (8), switch source of the gas, produces high pressure draught, cleans utilizing emitted light unit and connects light receiving unit;
C) after cleaning, chemical oxygen demand detection device (10) detects, and the result of detection sends data to collector by communication interface.
2. solar powered monitering buoy waterborne according to claim 1 detects the method for chemical oxygen demand (COD), it is characterized in that, monitering buoy waterborne comprises buoyancy aid (6), solar panel (4), source of the gas (3) electronics storehouse (5) and balance device; In electronics storehouse (5), there are data acquisition unit, air valve (9), air valve controller (8); Detection system storehouse (7) is positioned at monitering buoy buoyancy aid below, and detection system storehouse (7) are positioned at below the water surface when monitoring on the water, on the wall of detection system storehouse (7), have opening; Chemical oxygen demand detection device (10) is immersed in tested water body.
3. solar powered monitering buoy waterborne according to claim 1 detects the method for chemical oxygen demand (COD), it is characterized in that, wherein air valve controller (8) is electrical connection with air valve (9), air valve (9) is with source of the gas (3) for gas circuit is connected, and air valve (9) and detecting device (10) are connected for tracheae; Monitering buoy waterborne has GPS orientator, solar recharging Management Controller, accumulator; Wherein, the buoyancy aid of monitering buoy waterborne adopts Foam of Ionomer material, and its diameter is 1～2.5m, and general assembly (TW) is 100～500kg.
4. solar powered monitering buoy waterborne according to claim 1 detects the method for chemical oxygen demand (COD), it is characterized in that having timer and power-on switch in described air valve controller (8).
5. solar powered monitering buoy waterborne according to claim 1 detects the method for chemical oxygen demand (COD), it is characterized in that described source of the gas is provided by gas cylinder.
6. solar powered monitering buoy waterborne detects the method for chemical oxygen demand (COD) according to claim 1, it is characterized in that described air valve (9) is gas solenoid valve, and solenoid valve is without internal leakage, and net sectional area is 6～12mm
2, the magnetic time is 0.03～0.05 second, operating frequency is 3～5 times/second.
7. automatically clean according to claim 1 the monitering buoy solar powered waterborne of detection system, it is characterized in that loading as nitrogen, carbon dioxide or air in described source of the gas (3).
8. solar powered monitering buoy waterborne detects the method for chemical oxygen demand (COD) according to claim 1, it is characterized in that described chemical oxygen demand detection device (10) utilizing emitted light unit and receive light unit being isolated by optical element and detected solution, wherein optical element is to be arranged on respectively utilizing emitted light unit and to receive two surface sapphire minute surfaces on light unit.
9. solar powered monitering buoy waterborne detects the method for chemical oxygen demand (COD) according to claim 1, and the diameter that it is characterized in that buoy is 1.0～1.5m, and general assembly (TW) is 140～170kg.
10. solar powered monitering buoy waterborne detects the method for chemical oxygen demand (COD) according to claim 1, it is characterized in that the solar panels that solar panel is 30～50W by 2～4 power form; The lead-acid battery that accumulator is 50～70AH by 2～4 accumulator capacities forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465792.XA CN104181320A (en) | 2014-09-12 | 2014-09-12 | Method for detecting chemical oxygen demand by using solar power water-borne monitoring buoy |
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| CN201410465792.XA CN104181320A (en) | 2014-09-12 | 2014-09-12 | Method for detecting chemical oxygen demand by using solar power water-borne monitoring buoy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130439A (en) * | 2016-09-08 | 2016-11-16 | 无锡同春新能源科技有限公司 | Cone photovoltaic plant waterborne leads the floating cable power transmitting device to charging pile waterborne |
| CN106160627A (en) * | 2016-09-08 | 2016-11-23 | 无锡同春新能源科技有限公司 | Marine photovoltaic plant is by cable laser positioning charging pile electric supply installation on island |
| CN108519471A (en) * | 2018-03-09 | 2018-09-11 | 南安市创培电子科技有限公司 | A kind of automatic water quality detecting device of reservoir multiposition |
| CN108535443A (en) * | 2018-07-13 | 2018-09-14 | 苏州天信德环保科技有限公司 | A kind of buoy water quality monitoring station |
| CN108535442A (en) * | 2018-07-13 | 2018-09-14 | 苏州天信德环保科技有限公司 | A kind of bank base water quality monitoring station |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106130439A (en) * | 2016-09-08 | 2016-11-16 | 无锡同春新能源科技有限公司 | Cone photovoltaic plant waterborne leads the floating cable power transmitting device to charging pile waterborne |
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Application publication date: 20141203 |
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