CN210180911U - Hyperspectral water body absorption attenuation measuring device based on buoy - Google Patents
Hyperspectral water body absorption attenuation measuring device based on buoy Download PDFInfo
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- CN210180911U CN210180911U CN201920694612.3U CN201920694612U CN210180911U CN 210180911 U CN210180911 U CN 210180911U CN 201920694612 U CN201920694612 U CN 201920694612U CN 210180911 U CN210180911 U CN 210180911U
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Abstract
The utility model discloses a high spectrum water body absorption attenuation measuring device based on buoy, which comprises a high spectrum water body absorption attenuation measuring instrument, wherein the water inlet of the measuring instrument is connected with a four-way pipe through a first pipeline, the four-way pipe is connected with a submersible pump through a second pipeline, a first three-way valve is arranged on the second pipeline, the first three-way valve is connected with a first three-way pipe, a seawater filter is connected between the first three-way pipe and the four-way pipe, and the other outlet of the first three-way pipe is connected with a first electromagnetic; the water outlet of the measuring instrument is connected with a second three-way valve through a third pipeline, the second three-way valve is connected with a second three-way pipe, the other outlet of the second three-way valve is connected with a second electromagnetic valve, the second three-way pipe is connected with a fourth four-way pipe through a third electromagnetic valve, the second three-way pipe is connected with a vacuum pump through a fourth pipeline, and the vacuum pump is respectively connected with a purified water storage tank and an air; the utility model discloses a device has solved the unable problem that uses in the sea water for a long time of instrument, has realized carrying out long-term, normal position, all-weather monitoring to the absorption and the decay coefficient of sea water spectrum.
Description
Technical Field
The utility model relates to an ocean monitoring equips technical field, in particular to high spectrum water absorbs decay measuring device based on buoy.
Background
The absorption and attenuation coefficients of the water body spectrum are the attenuation rate of light of each wave band per unit distance in the water body, comprehensively reflect the influence degree of light rays on suspended particles, soluble organic matters and plankton in water, are important inherent optical quantity of the water body, and are direct indexes of factors such as the transparency of the water body, the concentration of suspended matters and the like. The absorption and attenuation coefficients are also basic parameters of the water color remote sensing semi-analytical model, the water body spectral characteristics of the sea area are researched, and basic data can be provided for remote sensing quantitative research.
A hyperspectral water body absorption attenuation measuring instrument AC-S produced by Wetlabs company in America is a standard instrument for field measurement of absorption coefficients and attenuation coefficients recognized by the international ocean optics and ocean color remote sensing at present. The main ways of using AC-S instruments for sea water absorption and attenuation coefficient are moorings, towed bodies, profile chains, survey vessels, etc. Wherein, by adopting the modes of mooring, towing body and section chain, the AC-S instrument is totally immersed in seawater, if the instrument is measured for a long time and suffers from marine organism adhesion and pollution, the performance of the instrument is reduced, the service life of the instrument is shortened, and the normal use time does not exceed 60 days even under the condition of adopting the best protective measures. When the survey ship mode is adopted, the AC-S instrument is required to be cleaned and other preparation works before each measurement, then the instrument is arranged below the water surface from the survey ship by using equipment such as a winch, an experimenter controls the instrument to work on the ship to carry out the measurement, the AC-S instrument is recycled on the ship after the measurement is finished, and then the cleaning and maintenance are carried out manually. The mode needs special ship voyage times, the preparation work of laying and recovery is more, the time is long, the operation cost of going out from sea is high, the detection frequency is low, and long-term continuous measurement is difficult to achieve. Therefore, the conventional AC-S measurement mode cannot carry out long-term in-situ on-line monitoring on the seawater absorption and attenuation coefficients.
Aiming at the cleaning and self-maintenance of instruments, some people adopt ultraviolet, ultrasonic and disinfectant methods to clean probes of the instruments, but the method is suitable for small-sized sensors capable of integrally processing ultraviolet, ultrasonic and disinfectant, and for large-sized instruments of AC-S sensors in a cavity, the method is not suitable for use, and ultraviolet and disinfectant can damage optical sensitive devices of the instruments to different degrees; in addition, the sensor is directly placed in the air to protect the sensor, and the sensor does not need to be immersed in seawater, but in practical application, because the humidity of the offshore air is high, condensation water is inevitably generated on a sensor probe, and therefore the drying effect is still not ideal.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a high spectrum water body absorption attenuation measuring device based on buoy to reach and measure automatic completion washing, drying after accomplishing, realized carrying out long-term, normal position, all-weather monitoring, increase of service life's purpose to the absorption and the decay coefficient of sea water body spectrum.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a hyperspectral water body absorption attenuation measuring device based on a buoy comprises a hyperspectral water body absorption attenuation measuring instrument, wherein a water inlet of the measuring instrument is connected with a four-way pipe through a pipeline I, the four-way pipe is connected with a submersible pump through a pipeline II, a three-way valve I is arranged on the pipeline II, the three-way valve I is connected with a three-way pipe I, a seawater filter is connected between the three-way pipe I and the four-way pipe, and the other outlet of the three-way pipe I is connected with a first electromagnetic valve; the water outlet of the measuring instrument is connected with a second three-way valve through a third pipeline, the second three-way valve is connected with a second three-way pipe, the other outlet of the second three-way valve is connected with a second electromagnetic valve, the second three-way pipe is connected with a fourth four-way pipe through a third electromagnetic valve, the second three-way pipe is connected with a vacuum pump through a fourth pipeline, and the vacuum pump is respectively connected with a purified water storage tank and an air dryer; the submersible pump is arranged in seawater, and the rest part of the submersible pump is arranged on the buoy platform.
In the above scheme, the measuring device further comprises a control system, the control system comprises a power supply and an MCU in communication connection with the buoy main control system and the measuring instrument, and the MCU drives the vacuum pump, the submersible pump, the electromagnetic valve and the three-way valve through the relay.
In the above scheme, the first pipeline is provided with a fourth electromagnetic valve, and the inlet of the air dryer is provided with a fifth electromagnetic valve.
In the scheme, the purified water storage tank and the air dryer are connected with the vacuum pump through the three-way valve III.
In the above scheme, the submersible pump is provided with a seawater inlet, the air dryer is provided with an air inlet, the first electromagnetic valve is connected with the first outlet, and the second electromagnetic valve is connected with the second outlet.
A hyperspectral water body absorption attenuation measurement method based on a buoy adopts the hyperspectral water body absorption attenuation measurement device based on the buoy, and comprises the following processes:
(1) sampling and measuring process: pumping a seawater sample through a submersible pump, entering a measuring instrument for measurement, and discharging through a second electromagnetic valve after the measurement is finished;
(2) and (3) cleaning: comprises filtering seawater, cleaning with purified water and pressurizing and cleaning with purified water;
filtering seawater and cleaning: after the measurement is finished by the measuring instrument, pumping seawater into a seawater filter through a submersible pump, feeding the filtered seawater into the measuring instrument, cleaning the optical device, and discharging the filtered seawater through a second electromagnetic valve;
cleaning with purified water: after the seawater is filtered and cleaned, the purified water stored in the purified water storage tank is extracted by using a vacuum pump, reversely enters the measuring instrument from the water outlet of the measuring instrument, the flow cavity and the optical device are cleaned for the second time by using the purified water, and the cleaned purified water is discharged through the first electromagnetic valve;
purified water pressurization cleaning: pumping air from a water inlet into a cavity of the measuring instrument by using a vacuum pump, enabling the air to flow upwards and be mixed with purified water in the cavity to form a gas-liquid mixture with certain pressure, cleaning an optical device in the cavity, and finally discharging the gas through a second electromagnetic valve;
(3) evacuation and drying process: air is sucked by a vacuum pump, enters an air filter, is injected into the cavity from the water outlet, purified water is discharged from the first electromagnetic valve, and passes through the seawater filter when being discharged, the filter screen is reversely cleaned, and impurities on the filter screen are cleaned; and the dry air continuously enters the measuring instrument to dry the optical devices in the cavity.
Through the technical scheme, the utility model provides a high spectrum water absorbs decay measuring device based on buoy has following advantage:
(1) the utility model discloses be different from the traditional working method of wholly immersing the AC-S instrument in the sea water, the utility model discloses with the instrument mounting on the buoy, only gather the sea water sample and get into the AC-S instrument when the sample is measured the flow, consequently long-term use can not be because of the biological performance degradation that adheres to, corrosion, leak the scheduling problem and lead to, can be used to long-term normal position and use on line.
(2) The utility model discloses adopt the combination method of "once forward washing of drainage, pure water secondary reverse cleaning, pressurization washing, drying" after measuring at every turn, wash, dry critical part such as optical probe in the instrument cavity, the effect surpasss adopts single method, improves and washs the maintenance effect, guarantees long-term measuring reliability and accuracy.
(3) The purified water after the washing is recycled, the filter screen of the seawater filter is reversely washed, the function of the filter element can be quickly recovered, the blockage is prevented, and the self-maintenance capability of the equipment is improved.
(4) And a drying process is added, the sensitive optical device in the AC-S instrument is quickly dried, the sensitive optical device is protected, and the method can be directly used for measurement in the next period without preparation before testing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural view of a hyperspectral water body absorption attenuation measurement device based on a buoy disclosed by an embodiment of the utility model;
fig. 2 is a schematic diagram of the control system of the present invention;
FIG. 3 is a schematic diagram of a path structure during a sampling measurement process;
FIG. 4 is a schematic diagram of a path structure of a filtered seawater cleaning process;
fig. 5 is a schematic view showing a path structure of a pure water cleaning process;
fig. 6 is a schematic view of a path structure of a pure water pressure cleaning process;
FIG. 7 is a schematic diagram of a path structure of an evacuation drying process;
fig. 8 is a program flowchart of the control system.
In the figure, 1, a first electromagnetic valve; 2. a first three-way pipe; 3. a seawater filter; 4. a four-way pipe; 5. a first three-way valve; 6. a submersible pump; 7. a fourth electromagnetic valve; 8. an AC-S instrument; 9. a second three-way valve; 10. a third pipe II; 11. a third electromagnetic valve; 12. a vacuum pump; 13. a third three-way valve; 14. a purified water storage tank; 15. an air dryer; 16. a fifth electromagnetic valve; 17. and a second electromagnetic valve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The utility model provides a high spectrum water absorbs decay measuring device based on buoy, as shown in FIG. 1, this measuring device has solved the unable problem of using in the sea water for a long time of instrument, has realized carrying out long-term, normal position, all-weather monitoring to the absorption and the decay coefficient of sea water spectrum.
The device comprises a hyperspectral water body absorption attenuation measuring instrument (AC-S) as shown in figure 1, wherein a water inlet of the measuring instrument 8 is connected with a four-way pipe 4 through a first pipeline, the four-way pipe 4 is connected with a submersible pump 6 through a second pipeline, a first three-way valve 5 is arranged on the second pipeline, the first three-way valve 5 is connected with a first three-way pipe 2, a seawater filter 3 is connected between the first three-way pipe 2 and the four-way pipe 4, and the other outlet of the first three-way pipe 2 is connected with a first electromagnetic valve 1; the water outlet of the measuring instrument 8 is connected with a second three-way valve 9 through a third pipeline, the second three-way valve 9 is connected with a second three-way pipe 10, the other outlet of the second three-way valve 9 is connected with a second electromagnetic valve 17, the second three-way pipe 10 is connected with the four-way pipe 4 through a third electromagnetic valve 11, the second three-way pipe 10 is connected with a vacuum pump 12 through a fourth pipeline, and the vacuum pump 12 is respectively connected with a purified water storage tank 14 and an air dryer 15; the submersible pump 6 is arranged in seawater, and the rest part of the submersible pump is arranged on the buoy platform.
The first pipeline is provided with a fourth electromagnetic valve 7, and the inlet of the air dryer 15 is provided with a fifth electromagnetic valve 16. The purified water storage tank 14 and the air dryer 15 are connected with the vacuum pump 12 through a three-way valve 13. The submersible pump 6 is provided with a seawater inlet, the air dryer 15 is provided with an air inlet, the first electromagnetic valve 1 is connected with the first outlet, and the second electromagnetic valve 17 is connected with the second outlet.
As shown in fig. 2, the measuring device further comprises a control system, the control system comprises a power supply and an MCU in communication connection with the buoy main control system and the measuring instrument, and the MCU drives the vacuum pump, the submersible pump, the electromagnetic valve and the three-way valve through the relay. The control system is provided with 13 switching value output ports, controls the opening and closing of the electromagnetic valve and the starting and stopping of the submersible pump and the vacuum pump, and completes the processes of seawater sampling measurement, cleaning, evacuation, drying and the like; the control system is provided with two RS232 communication interfaces, and is communicated with the AC-S instrument through RS232 to receive measurement data; the system is communicated with a buoy main control system through RS232, and sends data and instrument states and receives instructions.
The solenoid valves of this embodiment are a three-position three-way valve and a two-position two-way valve. The control system switches on or off different electromagnetic valves at different process task stages to form water paths and air paths with different paths.
The submersible pump is a submersible pump carried by the AC-S instrument and is used for providing a seawater sample and seawater for the seawater filter.
The vacuum pump is a water-gas dual-purpose vacuum pump, provides purified water for the AC-S instrument, provides air for the air dryer, and has the average flow rate of more than 1.0L/min.
The seawater filter adopts a stainless steel filter element with the aperture of 50 mu m.
The air dryer adopts an integrated air filtering dryer and has a self-draining function.
The adopted pipelines are connected by adopting black Teflon pipelines.
A hyperspectral water body absorption attenuation measurement method based on buoys comprises the following steps:
1. sampling and measuring process: pumping a seawater sample through a submersible pump, entering a measuring instrument for measurement, and discharging through a second electromagnetic valve after the measurement is finished;
the path is as shown in fig. 3, the control system starts the submersible pump to pump the seawater sample, and the seawater sample is filled and discharged according to the paths of 'seawater inlet → submersible pump 6 → three-way valve one 5 → four-way pipe 4 → electromagnetic valve four 7 → AC-S instrument 8 → three-way valve two 9 → electromagnetic valve two 17 → outlet two'. The rest parts of the electromagnetic valves and the three-way valve are in a closed state. The seawater enters the AC-S instrument 8, when the control system judges that the seawater is full of the instrument cavity, the submersible pump 6 is stopped, the instrument is kept still for a period of time (1min), and the instrument measures the light absorption and attenuation of the seawater. The measurement data is sent to the control system via the communication interface of the AC-S instrument 8.
2. Filtering seawater and cleaning: after the measurement is finished by the measuring instrument, pumping seawater into a seawater filter through a submersible pump, feeding the filtered seawater into the measuring instrument, cleaning the optical device, and discharging the filtered seawater through a second electromagnetic valve;
the path at this time is as shown in fig. 4. The control system starts the submersible pump 6 to pump seawater, and the rest parts of the electromagnetic valve and the three-way valve are in a closed state according to a passage of 'seawater inlet → the submersible pump 6 → the three-way valve one 5 → the three-way pipe one 2 → the seawater filter 3 → the four-way pipe 4 → the electromagnetic valve four 7 → the AC-S instrument 8 → the electromagnetic valve two 9 → the electromagnetic valve two 17 → the outlet two'. After passing through the seawater filter 3, the seawater filters impurities in the water to become relatively clean filtered water, and then the internal cavity and the optical device of the AC-S instrument 8 are cleaned to complete the first forward cleaning. After the flushing is completed, the submersible pump 6 is stopped.
3. Cleaning with purified water: after the seawater is filtered and cleaned, the purified water stored in the purified water storage tank is extracted by using a vacuum pump, reversely enters the measuring instrument from the water outlet of the measuring instrument, the flow cavity and the optical device are cleaned for the second time by using the purified water, and the cleaned purified water is discharged through the first electromagnetic valve;
the path at this time is as shown in fig. 5. The vacuum pump 12 is started to pump purified water, and the purified water enters the cavity to be cleaned according to the path of 'purified water storage tank 14 → three-way valve three 13 → vacuum pump 12 → two three-way valve 10 → two three-way valve 9 → AC-S instrument 8'. At the moment, the first electromagnetic valve 1 is in an open state, otherwise pure water cannot enter due to pressure. When the purified water enters the cavity, air in the cavity is discharged according to the sequence of 'AC-S instrument 8 → electromagnetic valve four 7 → four-way pipe 4 → seawater filter 3 → three-way pipe one 2 → electromagnetic valve one 1'. The rest parts of the electromagnetic valves and the three-way valve are in a closed state.
The control system can calculate the position of the water flow according to the opening time of the vacuum pump 12, when the cavity of the AC-S instrument 8 is filled with purified water and the purified water reaches the position of the first electromagnetic valve 1, the control system closes the first electromagnetic valve 1 and the fourth electromagnetic valve 7, the vacuum pump 12 is stopped, and the secondary cleaning of the purified water is completed.
4. Purified water pressurization cleaning: pumping air from a water inlet into a cavity of the measuring instrument by using a vacuum pump, enabling the air to flow upwards and be mixed with purified water in the cavity to form a gas-liquid mixture with certain pressure, cleaning an optical device in the cavity, and finally discharging the gas through a second electromagnetic valve;
the path at this time is as shown in fig. 6. The vacuum pump 12 is turned on, and air is pumped in accordance with "air inlet → solenoid valve five 16 → air filter 15 → three-way valve three 13 → vacuum pump 12 → tee pipe two 10 → solenoid valve three 11 → four-way pipe 4 → solenoid valve four 7 → AC-S instrument 8 → three-way valve two 9 → solenoid valve two → outlet two". After entering the AC-S instrument 8, air enters from a water inlet at the bottom of the AC-S instrument 8, flows upwards and is discharged from a water outlet of the AC-S instrument, and in the process, the air is mixed with pure water existing in the cavity to form a gas-liquid mixture with pressure, so that the cavity and optical elements in the AC-S instrument 8 are cleaned more effectively.
(3) Evacuation and drying process: air is sucked by a vacuum pump, enters an air filter, is injected into the cavity from the water outlet, purified water is discharged from the first electromagnetic valve, and passes through the seawater filter when being discharged, the filter screen is reversely cleaned, and impurities on the filter screen are cleaned; and the dry air continuously enters the measuring instrument to dry the optical devices in the cavity.
The path is shown in fig. 7. The vacuum pump is started and air is pumped in through the passage "air inlet → solenoid valve five 16 → air dryer 15 → three-way valve three 13 → vacuum pump 12 → three-way valve two 10 → three-way valve two 9 → AC-S instrument 8 → solenoid valve four 7 → four-way pipe 4 → seawater filter 3 → three-way pipe one 2 → solenoid valve one 1 → outlet one". In the process, purified water in the AC-S instrument 8 is firstly discharged, and in the discharging process, the purified water passes through the seawater filter to reversely clean the filter screen. After the pure water is emptied, the air continues to enter, and the cavity and the optical devices of the AC-S instrument 8 can be dried because the air is dried.
The control flow of the routine is shown in fig. 8. The specific working steps are as follows:
and after the control system receives the command of the buoy main control system or reaches the set timing time, starting the working process.
(1) Sampling and measuring process: the control system starts the submersible pump 6, extracts a seawater sample from a seawater inlet, sends the seawater sample into the AC-S instrument 8, starts measurement after the seawater sample is uniform and stable, lasts for 10S, collects measurement data and sends the measurement data to the buoy main control system.
(2) The cleaning process of filtering seawater comprises: after the measuring process is finished, the submersible pump 6 is started, the seawater extracted from the seawater inlet is sent to the flow cavity of the AC-S instrument 8 after passing through the seawater filter, and the sensor is cleaned by the filtered seawater for 20S.
(3) And (3) a purified water cleaning process: after the seawater filtering and cleaning process is finished, the control system controls the electromagnetic valve, purified water is injected, and the electromagnetic valve instrument 1 and the electromagnetic valve instrument IV 7 are closed after the duration of 7 s.
(4) Purified water pressurization cleaning: and the control system controls the electromagnetic valve to enter a pressurizing and cleaning process for 20 s.
(5) Evacuation and drying process: after the purified water is cleaned, the process of evacuation and drying is carried out, the control system controls the electromagnetic valve, the vacuum pump 9 is started, air is pumped from the air inlet and dried, then the air is reversely sent to the AC-S instrument 8, the seawater filter 3 is reversely cleaned by the purified water, and meanwhile, the sensing probe in the cavity is dried for 2 min.
(6) And after a complete measurement and cleaning process is finished, the control system enters a standby state, and the measurement of the next period is carried out after the timing time is up, wherein the period interval is 2 h.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A hyperspectral water body absorption attenuation measuring device based on a buoy comprises a hyperspectral water body absorption attenuation measuring instrument and is characterized in that a water inlet of the measuring instrument is connected with a four-way pipe through a pipeline I, the four-way pipe is connected with a submersible pump through a pipeline II, a three-way valve I is arranged on the pipeline II, the three-way valve I is connected with a three-way pipe I, a seawater filter is connected between the three-way pipe I and the four-way pipe I, and the other outlet of the three-way pipe I is connected with a first electromagnetic valve; the water outlet of the measuring instrument is connected with a second three-way valve through a third pipeline, the second three-way valve is connected with a second three-way pipe, the other outlet of the second three-way valve is connected with a second electromagnetic valve, the second three-way pipe is connected with a fourth four-way pipe through a third electromagnetic valve, the second three-way pipe is connected with a vacuum pump through a fourth pipeline, and the vacuum pump is respectively connected with a purified water storage tank and an air dryer; the submersible pump is arranged in seawater, and the rest part of the submersible pump is arranged on the buoy platform.
2. The device for measuring absorption and attenuation of hyperspectral water body based on buoy of claim 1, characterized in that the device further comprises a control system, the control system comprises a power supply, and an MCU in communication connection with the buoy main control system and the measuring instrument, the MCU drives a vacuum pump, a submersible pump, an electromagnetic valve and a three-way valve through a relay.
3. The hyperspectral water body absorption attenuation measurement device based on the buoy according to claim 1, wherein a fourth electromagnetic valve is arranged on the first pipeline, and a fifth electromagnetic valve is arranged at an inlet of the air dryer.
4. The device for measuring absorption attenuation of hyperspectral water body based on a buoy according to claim 1, wherein the purified water storage tank and the air dryer are connected with a vacuum pump through a three-way valve III.
5. The device for measuring absorption and attenuation of hyperspectral water body based on the buoy of claim 1, wherein the submersible pump is provided with a seawater inlet, the air dryer is provided with an air inlet, the first electromagnetic valve is connected with the first outlet, and the second electromagnetic valve is connected with the second outlet.
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| CN110057767A (en) * | 2019-05-15 | 2019-07-26 | 山东省科学院海洋仪器仪表研究所 | A kind of EO-1 hyperion water body attenuation by absorption measuring device and method based on buoy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110057767A (en) * | 2019-05-15 | 2019-07-26 | 山东省科学院海洋仪器仪表研究所 | A kind of EO-1 hyperion water body attenuation by absorption measuring device and method based on buoy |
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