CN113607493B - Ocean buoy on-line automatic sampling method and device - Google Patents
Ocean buoy on-line automatic sampling method and device Download PDFInfo
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- CN113607493B CN113607493B CN202110868400.4A CN202110868400A CN113607493B CN 113607493 B CN113607493 B CN 113607493B CN 202110868400 A CN202110868400 A CN 202110868400A CN 113607493 B CN113607493 B CN 113607493B
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- 238000005070 sampling Methods 0.000 title claims abstract description 238
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000013535 sea water Substances 0.000 claims abstract description 105
- 239000007788 liquid Substances 0.000 claims description 32
- 230000002572 peristaltic effect Effects 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 238000012544 monitoring process Methods 0.000 description 19
- 238000004891 communication Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
- B63B22/24—Buoys container type, i.e. having provision for the storage of material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
Abstract
The invention discloses an on-line automatic ocean buoy sampling method and device, wherein the on-line automatic ocean buoy sampling method comprises the following steps: receiving a seawater sampling flow mode control signal; starting a sampling route according to a seawater sampling flow mode, wherein the sampling route comprises a first route and a second route; receiving a seawater sampling mode control signal, wherein the sampling mode comprises single sampling, timing sampling and time equal ratio sampling; and carrying out seawater sampling according to the seawater sampling mode. The invention realizes automatic on-line seawater sampling, reduces labor intensity of experimental personnel, realizes timeliness of sampling, shortens water sample collection and pretreatment time, ensures validity of analysis data, effectively controls secondary pollution in the sampling process, and improves authenticity of water samples measured by all analysis instruments.
Description
Technical Field
The invention relates to the technical field of ocean, in particular to an on-line automatic sampling method and device for ocean buoys.
Background
There are two main methods for ocean monitoring, one is to directly put the sensor into the sea water for measurement; secondly, seawater is sampled and is sent to a laboratory for analysis and measurement by using an instrument. There are many environmental parameters currently not measurable by sensors, such as H-3, C-14, sr-90, cs-137, and gamma species analysis projects, etc., which can only be analyzed by sampling. The current widely used water sampling device is a niss Jin Caiyang bottle (Niskin bottle), but the inclination of a steel wire rope tied to the niss Jin Caiyang bottle affected by ocean currents cannot be controlled, and the hanging and disassembling of the water sampling bottle and the operation of a hammer are complex and time-consuming, and the requirement of automatic online sampling cannot be met.
Disclosure of Invention
The invention mainly aims to provide an on-line automatic sampling method and device for ocean buoys, which can realize automatic sampling and save labor.
In order to achieve the above purpose, the on-line automatic ocean buoy sampling method provided by the invention comprises the following steps:
receiving a seawater sampling flow mode control signal;
starting a sampling route according to a seawater sampling flow mode, wherein the sampling route comprises a first route and a second route;
receiving a seawater sampling mode control signal, wherein the sampling mode comprises single sampling, timing sampling and time equal ratio sampling; and
And carrying out seawater sampling according to the seawater sampling mode.
Optionally, the seawater sampling flow rate includes a large flow rate and a small flow rate, wherein the large flow rate is to store seawater into the large container, and the small flow rate is to store seawater into the small container.
Optionally, the sampling route is opened according to the seawater sampling flow mode, the sampling route comprises a first route and a second route, and the method specifically comprises the following steps:
when the seawater flow is high, controlling to start a first route;
and when the seawater flow is small, controlling to start the second route.
Optionally, the first route includes immersible pump, flowmeter, a plurality of first ooff valve, second ooff valve, a plurality of positive displacement pump and a plurality of stores up appearance bucket, the immersible pump is connected the one end of flowmeter, the other end of flowmeter is connected respectively a plurality of first ooff valve's one end and the one end of second ooff valve, a plurality of first ooff valve's the other end is connected respectively a plurality of stores up appearance bucket, a plurality of positive displacement pump one end respectively with a plurality of stores up appearance bucket intercommunication, the second ooff valve is connected respectively to the other end.
Optionally, the second route includes peristaltic pump, a plurality of liquid dividing valves and a plurality of sample storage bottles, the peristaltic pump is connected a plurality of liquid dividing valves, a plurality of liquid dividing valves are connected a plurality of sample storage bottles respectively.
Optionally, the seawater sampling according to the seawater sampling mode includes the following steps:
and when the seawater sampling mode is single sampling, controlling to start the first route or the second route.
Optionally, the seawater sampling according to the seawater sampling mode comprises the following steps:
when the seawater sampling mode is timing sampling, acquiring actual time;
judging whether the actual time reaches the preset time, and controlling to start the first route or the second route when the actual time reaches the preset time.
Optionally, the seawater sampling according to the seawater sampling mode includes the following steps:
when the seawater sampling mode is time-equal-ratio sampling, setting the sampling time at intervals as Deltat and acquiring the actual time T n N is a positive integer and n=1, 2, 3 … …;
judgment T n Whether or not to be equal to Deltat+T n-1 N is a positive integer and n=1, 2, 3 … …, when T n Equal to Deltat+T n-1 At the time, determine the actual time T n+1 Whether or not to be equal to T n When the time is +preset, the actual time T n+1 Equal to T n The control of +preset time controls the first route or the second route to be started.
The invention also provides an on-line automatic sampling device for the ocean buoy, which comprises:
the first receiving module is used for receiving a seawater sampling flow mode control signal;
the starting module is used for starting a sampling route according to a seawater sampling flow mode, and the sampling route comprises a first route and a second route;
the second receiving module is used for receiving a seawater sampling mode control signal, and the sampling mode comprises single sampling, timing sampling and time equal ratio sampling; and
And the sampling module is used for sampling seawater according to the seawater sampling mode.
Compared with the prior art, the invention has the following beneficial effects:
the technical scheme of the ocean buoy on-line automatic sampling method of the invention receives the seawater sampling flow mode control signal, and opens a sampling route according to the seawater sampling flow mode, wherein the sampling route comprises a first route and a second route, and receives the seawater sampling mode control signal, and the sampling mode comprises single sampling, timed sampling and time-equal ratio sampling and seawater sampling according to the seawater sampling mode, so that the automatic on-line seawater sampling is realized, the labor intensity of experimenters is reduced, the timeliness of sampling is realized, the water sample acquisition and pretreatment time is shortened, the effectiveness of analysis data is ensured, the secondary pollution in the sampling process is effectively controlled, and the authenticity of the water sample measured by each analysis instrument is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of an on-line automatic ocean buoy sampling method according to the present invention;
FIG. 2 is a circuit diagram of an embodiment of an on-line automatic ocean buoy sampling method according to the present invention;
FIG. 3 is a block diagram of an embodiment of the on-line automatic ocean buoy sampling device of the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 11 | Submersible pump | 12 | Flowmeter for measuring flow rate |
| 13 | First switch valve | 14 | Second switch valve |
| 15 | Liquid discharge pump | 16 | Sample storage barrel |
| 21 | Peristaltic pump | 22 | Liquid separating valve |
| 23 | Sample storage bottle | 17 | Proportional control valve |
| 18 | PH sensor |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to FIG. 1, a flowchart of a preferred embodiment of the ocean buoy on-line automatic sampling method of the present invention comprises:
s100, receiving a seawater sampling flow mode control signal;
in an embodiment of the present invention, the automatic sampling system is provided with a monitoring terminal and a buoy device, wherein the monitoring terminal is a device capable of automatically performing numerical calculation and/or information processing according to a preset or stored instruction, and the hardware of the monitoring terminal comprises, but is not limited to, a microprocessor, an application specific integrated circuit (ApplicaPion SpecificInPegraPed circuit, ASIC), a programmable gate array (Field-Programmable GaPe Array, FPGA), a digital processor (DigiPal Signal Processor, DSP), an embedded device and the like.
The monitor terminal may be, but not limited to, any electronic product that can interact with a user by means of a keyboard, a mouse, a remote controller, a touch pad, or a voice control device, for example, a Personal computer, a tablet computer, a smart phone, a Personal Digital Assistant (PDA), a game console, an interactive internet protocol television (InPernePProPocol Pelevision, IPPV), an intelligent wearable device, a robot, etc.
The monitoring terminal can also be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server and the like.
The network in which the monitoring terminal and the buoy device are located includes, but is not limited to, the internet, a wide area network, a metropolitan area network, a local area network, a Virtual Private Network (VPN), and the like.
The buoy device is provided with a control system, the control system consists of a PLC and a Cloud Box, the Cloud Box is integrated with a 4G communication module, and the control system can directly perform bidirectional data communication with a Cloud, and then performs bidirectional data communication with a monitoring terminal.
The control interface is provided with a seawater sampling flow mode, the seawater sampling flow comprises a large flow and a small flow, wherein the large flow is defined as storing seawater into a large container, and the invention is provided with 4 large-flow sampling pumps which are independently used by 25L plastic sample storage barrels; the small flow is to store seawater into a small container, and 14 1L glass sample storage bottles are arranged in the invention and independently use a small flow sampling pump and a small pipe diameter flow path;
after the flow mode is selected, the monitoring terminal sends a signal to a control system of the buoy device through wireless communication.
S200, starting a sampling route according to a seawater sampling flow mode, wherein the sampling route comprises a first route and a second route;
in the embodiment of the invention, the buoy device is provided with a first route and a second route, an electromagnetic valve is respectively arranged corresponding to the first route and the second route, the corresponding electromagnetic valve is controlled to be closed or opened through a control system, and then the first route or the second route is controlled to be opened, referring to fig. 2, the first route comprises a submersible pump 11, a flowmeter 12, a plurality of first switch valves 13, a second switch valve 14, a plurality of liquid discharge pumps 15 and a plurality of sample storage barrels 16, the submersible pump 11 is connected with one end of the flowmeter 12 through a pipeline, the other end of the flowmeter 12 is respectively connected with one end of the first switch valves 13 and one end of the second switch valve 14 through a pipeline, the other end of the first switch valves 13 is respectively connected with the sample storage barrels 16 through management, one end of the liquid discharge pumps 15 is respectively communicated with the sample storage barrels 16 through a pipeline, and the other end of the liquid discharge pumps 15 is respectively connected with the second switch valves 14 through pipelines; further, the first route further includes a proportional control valve 17 and a PH sensor 18, the proportional control valve 17 is connected to the submersible pump 11 through a pipeline, the PH sensor 18 is disposed on the pipeline where the plurality of liquid discharge pumps 15 and the second switch valve 14 are communicated, after the submersible pump 11 is opened, the plurality of first switch valves 13 are sequentially opened, so that seawater is respectively filled into the sample storage barrel 16, when the electromagnetic valve of the first route is in a closed state, the submersible pump 11 starts to work, and the seawater is pumped to the pipeline and then enters the sample storage barrel;
the sampling pump selects the corrosion-resistant immersible pump for use, can ensure that the sampling pipeline can realize from the evacuation function, and the sampling pipeline design has the reposition of redundant personnel bypass, through the adjustment of proportional control valve reposition of redundant personnel size to reach the purpose of control sampling speed. The proportional regulating valve can control the opening of the valve according to the requirement, the larger the opening is, the more water samples are split, the fewer water samples enter the sample storage barrel, and the sampling time is prolonged; the smaller the valve opening is, the less water sample is split, the more water sample enters the sample storage barrel, and the sampling time is correspondingly shortened.
When sampling, the on-off valves of other flow paths are closed, the on-off valves of corresponding sample storage barrels are only opened, the submersible pump is operated, the pulse number of the flowmeter is read in real time, the pulse number is converted into accumulated flow, when the flow reaches the set sampling amount, the sample injection is stopped, the sampling port is arranged at the position of 1.5 m under water, and the system liquid discharge and overflow are arranged on the surface layer to prevent mutual interference.
Considering that the offshore operation environment is bad, the system control box adopts a fully-sealed box body, and main control elements are all arranged in the sealed box. Each pump valve is provided with an independent control relay, so that the instant power-off is convenient when accidents occur.
The second route comprises a peristaltic pump 21, a plurality of liquid dividing valves 22 and a plurality of sample storage bottles 23, wherein the peristaltic pump 21 is connected with one ends of the liquid dividing valves 22 through pipelines, the liquid dividing valves 22 are respectively connected with the sample storage bottles 23 through pipelines, and when an electromagnetic valve of the second route is in a closed state, the peristaltic pump 21 works to pump seawater to the sample storage bottles 23 through the pipelines.
The small flow sampling system uses peristaltic pump with positive and negative rotation function, and cooperates with liquid dividing valve, and is used for sampling during positive rotation and discharging during reverse rotation. The glass sample storage bottle has only one working mode because the acid fixation is not enhanced. When the system is in operation, the peristaltic pump is used for carrying out forward rotation sample injection and then reversely discharging a water sample, a glass bottle is rinsed, then the collection time of a set amount of samples is calculated according to the sampling amount per minute of the peristaltic pump, and the operation of the peristaltic pump is controlled according to the time.
S300, receiving a seawater sampling mode control signal, wherein the sampling mode comprises single sampling, timing sampling and time equal ratio sampling;
in the embodiment of the invention, the monitoring terminal is provided with a seawater sampling mode for a user to select, wherein the sampling mode comprises single sampling, timing sampling and time equal ratio sampling, after the seawater sampling mode is selected, a signal is sent to the buoy through infinite communication, the buoy receives a corresponding control signal, and specifically, a setting mode of the single sampling, the timing sampling and the time equal ratio sampling is stored in a memory of the monitoring terminal, for example, the single sampling mode is stored as 01, the timing sampling is stored as 02, and the time equal ratio sampling is 03.
And S400, sampling seawater according to a seawater sampling mode.
In an embodiment of the invention, when the seawater sampling mode is single sampling, the buoy control opens the first route or the second route; specifically, when the buoy device recognizes that the sampling mode is 01 after receiving the seawater sampling mode control signal, the buoy device controls to start the first route or the second route;
when the seawater sampling mode is timing sampling, acquiring actual time, specifically, when the buoy device recognizes that the sampling mode is 02 after receiving a seawater sampling mode control signal, controlling the buoy device to start a first route or a second route;
judging whether the actual time reaches the preset time, and controlling to start the first route or the second route when the actual time reaches the preset time.
When the seawater sampling mode is time-equal-ratio sampling, setting the sampling time at intervals as Deltat and acquiring the actual time T n N is a positive integer and n=1, 2, 3 … …; in particular, when receivingWhen the buoy device recognizes that the sampling mode is 03 after the seawater sampling mode control signal is received, setting the sampling time at intervals to be Deltat and acquiring the actual time T n N is a positive integer and n=1, 2, 3 … …;
judgment T n Whether or not to be equal to Deltat+T n-1 N is a positive integer and n=1, 2, 3 … …, when T n Equal to Deltat+T n-1 At the time, determine the actual time T n+1 Whether or not to be equal to T n When the time is +preset, the actual time T n+1 Equal to T n Control to start the first route or the second route in the +preset time;
automatic sampling is performed according to the "offset xxmin per interval XX h" of the timing setting interface, for example: offset by 5min every 1h interval, the auto-sampling time points are 0:05,1:05,2:05,3:05 … ….
According to the method, the automatic sampling of the marine buoy device can be realized, the labor intensity of experimental personnel is reduced, the water sample collecting and preprocessing time is shortened, the effectiveness of analysis data is ensured, the secondary pollution in the sampling process is effectively controlled, and the authenticity of the detected water sample is improved.
In order to implement the method shown in fig. 1, the present application provides a schematic structural diagram of an embodiment of an on-line automatic ocean buoy sampling method, where an embodiment of the device corresponds to the embodiment of the method shown in fig. 1, and the device may be specifically applied to various electronic devices.
As shown in fig. 3, the on-line automatic ocean buoy sampling device 500 according to the present embodiment includes:
a first receiving module 510, configured to receive a seawater sampling flow mode control signal;
in an embodiment of the present invention, the automatic sampling system is provided with a monitoring terminal and a buoy device, wherein the monitoring terminal is a device capable of automatically performing numerical calculation and/or information processing according to a preset or stored instruction, and the hardware of the monitoring terminal comprises, but is not limited to, a microprocessor, an application specific integrated circuit (ApplicaPion SpecificInPegraPed circuit, ASIC), a programmable gate array (Field-Programmable GaPe Array, FPGA), a digital processor (DigiPal Signal Processor, DSP), an embedded device and the like.
The monitor terminal may be, but not limited to, any electronic product that can interact with a user by means of a keyboard, a mouse, a remote controller, a touch pad, or a voice control device, for example, a Personal computer, a tablet computer, a smart phone, a Personal Digital Assistant (PDA), a game console, an interactive internet protocol television (InPernePProPocol Pelevision, IPPV), an intelligent wearable device, a robot, etc.
The monitoring terminal can also be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server and the like.
The network in which the monitoring terminal and the buoy device are located includes, but is not limited to, the internet, a wide area network, a metropolitan area network, a local area network, a Virtual Private Network (VPN), and the like.
The buoy device is provided with a control system, the control system consists of a PLC and a Cloud Box, the Cloud Box is integrated with a 4G communication module, and the control system can directly perform bidirectional data communication with a Cloud, and then performs bidirectional data communication with a monitoring terminal.
The control interface is provided with a seawater sampling flow mode, the seawater sampling flow comprises a large flow and a small flow, wherein the large flow is defined as storing seawater into a large container, and the invention is provided with 4 large-flow sampling pumps which are independently used by 25L plastic sample storage barrels; the small flow is to store seawater into a small container, and 14 1L glass sample storage bottles are arranged in the invention and independently use a small flow sampling pump and a small pipe diameter flow path;
after the flow mode is selected, the monitoring terminal sends a signal to a control system of the buoy device through wireless communication.
The opening module 520 is configured to open a sampling route according to a seawater sampling flow mode, where the sampling route includes a first route and a second route;
in the embodiment of the invention, the buoy device is provided with a first route and a second route, an electromagnetic valve is respectively arranged corresponding to the first route and the second route, the corresponding electromagnetic valve is controlled to be closed or opened through a control system, and then the first route or the second route is controlled to be opened, referring to fig. 2, the first route comprises a submersible pump 11, a flowmeter 12, a plurality of first switch valves 13, a second switch valve 14, a plurality of liquid discharge pumps 15 and a plurality of sample storage barrels 16, the submersible pump 11 is connected with one end of the flowmeter 12 through a pipeline, the other end of the flowmeter 12 is respectively connected with one end of the first switch valves 13 and one end of the second switch valve 14 through a pipeline, the other end of the first switch valves 13 is respectively connected with the sample storage barrels 16 through management, one end of the liquid discharge pumps 15 is respectively communicated with the sample storage barrels 16 through a pipeline, and the other end of the liquid discharge pumps 15 is respectively connected with the second switch valves 14 through pipelines; further, the first route further includes a proportional control valve 17 and a PH sensor 18, the proportional control valve 17 is connected to the submersible pump 11 through a pipeline, the PH sensor 18 is disposed on the pipeline where the plurality of liquid discharge pumps 15 and the second switch valve 14 are communicated, after the submersible pump 11 is opened, the plurality of first switch valves 13 are sequentially opened, so that seawater is respectively filled into the sample storage barrel 16, when the electromagnetic valve of the first route is in a closed state, the submersible pump 11 starts to work, and the seawater is pumped to the pipeline and then enters the sample storage barrel;
the sampling pump selects the corrosion-resistant immersible pump for use, can ensure that the sampling pipeline can realize from the evacuation function, and the sampling pipeline design has the reposition of redundant personnel bypass, through the adjustment of proportional control valve reposition of redundant personnel size to reach the purpose of control sampling speed. The proportional regulating valve can control the opening of the valve according to the requirement, the larger the opening is, the more water samples are split, the fewer water samples enter the sample storage barrel, and the sampling time is prolonged; the smaller the valve opening is, the less water sample is split, the more water sample enters the sample storage barrel, and the sampling time is correspondingly shortened.
When sampling, the on-off valves of other flow paths are closed, the on-off valves of corresponding sample storage barrels are only opened, the submersible pump is operated, the pulse number of the flowmeter is read in real time, the pulse number is converted into accumulated flow, when the flow reaches the set sampling amount, the sample injection is stopped, the sampling port is arranged at the position of 1.5 m under water, and the system liquid discharge and overflow are arranged on the surface layer to prevent mutual interference.
Considering that the offshore operation environment is bad, the system control box adopts a fully-sealed box body, and main control elements are all arranged in the sealed box. Each pump valve is provided with an independent control relay, so that the instant power-off is convenient when accidents occur.
The second route comprises a peristaltic pump 21, a plurality of liquid dividing valves 22 and a plurality of sample storage bottles 23, wherein the peristaltic pump 21 is connected with one ends of the liquid dividing valves 22 through pipelines, the liquid dividing valves 22 are respectively connected with the sample storage bottles 23 through pipelines, and when an electromagnetic valve of the second route is in a closed state, the peristaltic pump 21 works to pump seawater to the sample storage bottles 23 through the pipelines.
The small flow sampling system uses peristaltic pump with positive and negative rotation function, and cooperates with liquid dividing valve, and is used for sampling during positive rotation and discharging during reverse rotation. The glass sample storage bottle has only one working mode because the acid fixation is not enhanced. When the system is in operation, the peristaltic pump is used for carrying out forward rotation sample injection and then reversely discharging a water sample, a glass bottle is rinsed, then the collection time of a set amount of samples is calculated according to the sampling amount per minute of the peristaltic pump, and the operation of the peristaltic pump is controlled according to the time.
A second receiving module 530 for receiving a seawater sampling pattern control signal, the sampling pattern comprising a single sampling, a timing sampling and a time-to-time equal ratio sampling;
in the embodiment of the invention, the monitoring terminal is provided with a seawater sampling mode for a user to select, the sampling mode comprises single sampling, timing sampling and time equal ratio sampling, after the seawater sampling mode is selected, a signal is sent to the buoy through infinite communication, the second receiving module of the buoy receives a corresponding control signal, specifically, a setting mode of the single sampling, the timing sampling and the time equal ratio sampling is stored in a memory of the monitoring terminal, for example, the single sampling mode is stored as 01, the timing sampling is stored as 02, and the time equal ratio sampling is 03
And a sampling module 540 for sampling seawater according to a seawater sampling mode.
In an embodiment of the invention, when the seawater sampling mode is single sampling, the buoy control opens the first route or the second route; specifically, when the buoy device recognizes that the sampling mode is 01 after receiving the seawater sampling mode control signal, the buoy device controls the submersible pump to be started.
When the seawater sampling mode is timing sampling, acquiring actual time;
judging whether the actual time reaches the preset time, and controlling to start the first route or the second route when the actual time reaches the preset time.
When the seawater sampling mode is time-equal-ratio sampling, setting the sampling time at intervals as Deltat and acquiring the actual time T n N is a positive integer and n=1, 2, 3 … …;
judgment T n Whether or not to be equal to Deltat+T n-1 N is a positive integer and n=1, 2, 3 … …, when T n Equal to Deltat+T n-1 At the time, determine the actual time T n+1 Whether or not to be equal to T n When the time is +preset, the actual time T n+1 Equal to T n The control of +preset time controls the first route or the second route to be started.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (3)
1. The on-line automatic ocean buoy sampling method is characterized by comprising the following steps of:
receiving a seawater sampling flow mode control signal;
starting a sampling route according to a seawater sampling flow mode, wherein the sampling route comprises a first route and a second route;
receiving a seawater sampling mode control signal, wherein the sampling mode comprises single sampling, timing sampling and time equal ratio sampling; and
Sampling seawater according to a seawater sampling mode; the seawater sampling flow comprises a large flow and a small flow, wherein the large flow is used for rapidly storing seawater into a large container, and the small flow is used for accurately storing the seawater into a small container;
the sampling route is opened according to the seawater sampling flow mode, and comprises a first route and a second route, and the method specifically comprises the following steps:
when the seawater flow is high, controlling to start a first route;
when the seawater flow is small, controlling to start a second route
The first route comprises a submersible pump, a flowmeter, a plurality of first switch valves, a plurality of second switch valves, a plurality of liquid discharge pumps and a plurality of sample storage barrels, wherein the submersible pump is connected with one end of the flowmeter through a pipeline, the other end of the flowmeter is respectively connected with one end of the plurality of first switch valves and one end of the second switch valves through pipelines, the other ends of the plurality of first switch valves are respectively connected with the plurality of sample storage barrels through pipelines, one ends of the liquid discharge pumps are respectively communicated with the plurality of sample storage barrels through pipelines, and the other ends of the liquid discharge pumps are respectively connected with the second switch valves through pipelines;
the second route comprises a peristaltic pump, a plurality of liquid dividing valves and a plurality of sample storage bottles, wherein the peristaltic pump is connected with one ends of the liquid dividing valves through pipelines, and the liquid dividing valves are respectively connected with the sample storage bottles through pipelines;
when the seawater sampling mode is single sampling, controlling to start a first route or a second route;
when the seawater sampling mode is timing sampling, acquiring actual time;
judging whether the actual time reaches the preset time, and controlling to start the first route or the second route when the actual time reaches the preset time;
when the seawater sampling mode is time-equal-ratio sampling, setting the sampling time at intervals as Deltat and acquiring the actual time T n N is a positive integer and n=1, 2, 3 … …;
judgment T n Whether or not to be equal to Deltat+T n-1 N is a positive integer and n=1, 2, 3 … …, when T n Equal to Deltat+T n-1 At the time, determine the actual time T n+1 Whether or not to be equal to T n When the time is +preset, the actual time T n+1 Equal to T n Control switch for +preset timeThe first route or the second route is started.
2. An on-line automatic marine buoy sampling device employing the on-line automatic marine buoy sampling method of claim 1, characterized in that the automatic sampling device comprises:
the first receiving module is used for receiving a seawater sampling flow mode control signal;
the starting module is used for starting a sampling route according to a seawater sampling flow mode, and the sampling route comprises a first route and a second route;
the second receiving module is used for receiving a seawater sampling mode control signal, and the sampling mode comprises single sampling, timing sampling and time equal ratio sampling; and
The sampling module is used for sampling seawater according to a seawater sampling mode; the seawater sampling flow comprises a large flow and a small flow, wherein the large flow is used for rapidly storing seawater into a large container, and the small flow is used for accurately storing the seawater into a small container;
the sampling route is opened according to the seawater sampling flow mode, and comprises a first route and a second route, and the method specifically comprises the following steps:
when the seawater flow is high, controlling to start a first route;
when the seawater flow is small, controlling to start a second route;
the first route comprises a submersible pump, a flowmeter, a plurality of first switch valves, a plurality of second switch valves, a plurality of liquid discharging pumps and a plurality of sample storage barrels, wherein the submersible pump is connected with one end of the flowmeter through a pipeline, the other end of the flowmeter is connected with one ends of the plurality of first switch valves and one ends of the second switch valves through pipelines respectively, the other ends of the plurality of first switch valves are connected with the plurality of sample storage barrels through pipelines respectively, one ends of the liquid discharging pumps are communicated with the plurality of sample storage barrels through pipelines respectively, and the other ends of the liquid discharging pumps are connected with the second switch valves through pipelines respectively.
3. The on-line automatic ocean buoy sampling device of claim 2, wherein the seawater sampling flow comprises a large flow and a small flow, wherein the large flow is to store seawater to a large container and the small flow is to store seawater to a small container.
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