CN116296581B - Microplastic vertical sampling device for deep water body - Google Patents
Microplastic vertical sampling device for deep water body Download PDFInfo
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- CN116296581B CN116296581B CN202310573723.XA CN202310573723A CN116296581B CN 116296581 B CN116296581 B CN 116296581B CN 202310573723 A CN202310573723 A CN 202310573723A CN 116296581 B CN116296581 B CN 116296581B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 243
- 229920000426 Microplastic Polymers 0.000 title claims abstract description 78
- 238000005070 sampling Methods 0.000 title claims abstract description 52
- 238000001914 filtration Methods 0.000 claims abstract description 49
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 230000000979 retarding effect Effects 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 9
- 230000001737 promoting effect Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to the technical field of environmental protection, and relates to a micro-plastic vertical sampling device for deep water, which comprises a shell, a micro-plastic retarding net and a power element; the shell is slender, a water inlet and a water outlet are formed in the first end of the shell, and the second end of the shell is closed; a first passage and a second passage which are arranged side by side are arranged in the shell along the length direction, the first end of the first passage is communicated with the water inlet, the first end of the second passage is communicated with the water outlet, and the second end of the first passage is communicated with the second end of the second passage and is communicated with the water filtering port; the microplastic retarding net is arranged on the water filtering port and used for retarding microplastic; the power element is connected with the water outlet. The micro plastic does not enter the power element, the sample is not easy to be disturbed, and the invention has the characteristics of accurate sampling and long service life of the power element.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a micro-plastic vertical sampling device for deep water.
Background
The microplastic is plastic particles with the diameter smaller than 5mm, the microplastic is divided into primary microplastic and secondary microplastic, the primary microplastic is plastic particle industrial products discharged into water environment through rivers, sewage treatment plants and the like, the secondary microplastic is plastic particles formed by splitting and reducing the volume of large-scale plastic garbage through physical, chemical and biological processes, and the pollution of the microplastic threatens the survival of marine organisms and the development of the tourism industry, fishery industry and commerce.
When the micro-plastics in the water body are treated, the sampling of the micro-plastics in the water body is an important work. For micro plastic sampling, there are also some micro plastic sampling devices in the prior art, for example, in patent application documents with application number 201911345328.6, application date 2019, 12 month and 24, and the invention and creation name of a device for detecting the concentration of micro plastic in a water body, namely, a micro plastic sample collecting device is mentioned. The detection device comprises a frame body, a submersible pump, a screen bag, a micro-plastic collecting cup, a flowmeter, a filter plate and the like, when the detection device works, water is sucked in through a water inlet of the submersible pump, enters the screen bag through the flowmeter and is discharged through meshes of the cylindrical screen bag, part of water flows into the micro-plastic collecting cup through a lower bag opening of the screen bag through the filter plate and is discharged through meshes at the bottom of the micro-plastic collecting cup, and a water sample is collected through the screen bag and the micro-plastic collecting cup.
In the existing sampling device, samples are collected by a pump firstly and then are collected, so that pump body pollution is easily caused; moreover, the sampling is not accurate due to the fact that the water body with the microplastic stays in the pump body.
Disclosure of Invention
In order to solve the problems, the invention provides a micro plastic vertical sampling device for deep water, which has the following technical scheme:
a micro-plastic vertical sampling device for deep water body comprises a shell, a micro-plastic retarding net and a power element; the shell is slender, a water inlet and a water outlet are formed in the first end of the shell, and the second end of the shell is closed; a first passage and a second passage which are arranged side by side are arranged in the shell along the length direction, the first end of the first passage is communicated with the water inlet, the first end of the second passage is communicated with the water outlet, and the second end of the first passage is communicated with the second end of the second passage and is communicated with the water filtering port; the microplastic retarding net is arranged on the water filtering port and used for retarding microplastic; the power element is connected with the water outlet and is used for promoting the water body to flow along the water inlet, the first passage, the water filtering port, the second passage and the water outlet in sequence in the shell.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the power element is a submersible pump arranged on the water outlet; the power element is positioned in the shell, the first passage is arranged between the shell of the power element and the shell, and the second passage is arranged in the shell of the power element; the water filtering port is positioned on the shell of the power element and is close to the second end of the shell.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the axis of the power element coincides with the axis of the shell, and the first passage surrounds the outer side of the second passage; the water outlet is connected with a drain pipe, a first end of the drain pipe is connected with the water outlet, a second end of the drain pipe is arranged above the water surface, and a flowmeter is arranged on the drain pipe.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the distance between the water filtering port and the second end of the shell is not less than one fifth of the total length of the shell.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the mesh number of the microplastic retarding net is not less than 250 meshes, and the microplastic retarding net is used for retaining microplastic and sundries with diameters larger than 50 micrometers in the first passage.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the power element is connected with the water outlet through a first connecting pipe, the first end of the first connecting pipe is connected with the water outlet, and the second end of the first connecting pipe is connected with the power element; the power element is arranged on the ship body or the shore, and the power element extracts the water body in the shell through the first connecting pipe.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: install the inlet tube on the water inlet, the first end of inlet tube with the water inlet links to each other, the second end of inlet tube is used for putting into the interior preset position extraction water of water.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the second end of the water inlet pipe is provided with a horn mouth.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: within the housing, the first passageway and the second passageway are separated by a first partition; the first partition plate is provided with the water filtering port, and the water filtering port is perpendicular to the second end of the shell; the distance between the water filtering port and the second end of the shell is smaller than the distance between the water filtering port and the first end of the shell.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: within the housing, the first passageway and the second passageway are separated by a second partition; the second partition plate is spaced from the second end of the shell, the water filtering port is positioned in the first passage or the second passage, and the water filtering port and the second end of the shell are arranged in parallel; the distance between the water filtering port and the second end of the shell is smaller than the distance between the water filtering port and the first end of the shell.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the shell is provided with a traction rope, a first end of the traction rope is connected with the first end of the shell, and a second end of the traction rope is connected to the ship body or the bank.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the shell is provided with a large-particle filter screen, and the large-particle filter screen is arranged on the water inlet and used for preventing large particles from blocking the microplastic blocking screen.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the shell is provided with a water level sensor, and the water level sensor is arranged on the outer periphery of the shell and used for detecting the water level depth of the position where the shell is located.
The micro plastic vertical sampling device for deep water body as described above is further preferable to be: the auxiliary depth fixing rope is arranged on the shell, the first end of the auxiliary depth fixing rope is connected with the first end of the shell, and the second end of the auxiliary depth fixing rope is used for being connected with a ship body or a shore.
Analysis shows that compared with the prior art, the invention has the following advantages:
in the invention, the microplastic in the water body is blocked in the first passage by the microplastic blocking net and cannot enter the power element, so that the pollution of the power element is avoided, and the service life of the power element can be prolonged; in addition, the retention of the micro plastic in the power element is not required to be considered, and the sampling accuracy can be improved. In addition, the water inlet and the water outlet of the shell are both positioned at the first end of the shell, the accommodation space of the micro plastic sample is far away from the water inlet and the water outlet, disturbance of water flow to the micro plastic sample can be reduced, and sampling accuracy is further improved.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is a schematic view of the internal structure of the housing of fig. 1 according to the present invention.
Fig. 3 is a schematic structural view of a further embodiment of the present invention.
Fig. 4 is a cross-sectional view of fig. 3 of the present invention.
Fig. 5 is a schematic structural view of still another embodiment of the present invention.
Fig. 6 is a cross-sectional view of fig. 5 of the present invention.
In the figure: 1-a water outlet; 2-a large particulate filter screen; 3-traction collar; 4-a housing; 5-a power element; 6-a first pass; 7-a microplastic blocking net; 8-a first separator; 9-a second pass; 10-a second separator.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
In one embodiment of the invention, as shown in FIG. 1, a microplastic vertical sampling device for deep water bodies is provided. Specifically, the micro-plastic vertical sampling device for deep water body comprises a shell 4, a micro-plastic blocking net 7 and a power element 5. Wherein, the shell 4 is slender, the first end of the shell 4 is provided with a water inlet and a water outlet 1, and the second end is closed. A first passage 6 and a second passage 9 are provided in the housing 4 in parallel in the longitudinal direction. The first end of the first passage 6 is communicated with the water inlet, and the first end of the second passage 9 is communicated with the water outlet 1. The second end of the first passage 6 communicates with the second end of the second passage 9 to a water filter, which is located in the housing 4. A microplastic retarding net 7 retarding microplastic is installed on the water filtering port. A power element 5 for promoting the water body to flow in the shell 4 is connected with the water outlet 1.
In the embodiment, a first passage 6 and a second passage 9 are arranged in the shell 4, a micro plastic blocking net 7 is arranged at the position where the first passage 6 and the second passage 9 are communicated (water filtering port), and the water outlet 1 is connected with the power element 5. When in use, the power element 5 can promote the sampled water body to enter the shell 4 from the water inlet and to be discharged out of the shell 4 from the water outlet 1, and the flow path of the water body in the shell 4 sequentially passes through the water inlet, the first passage 6, the water filtering port, the second passage 9 and the water outlet 1. In this embodiment, the micro plastic in the water body is blocked in the first passage 6 by the micro plastic blocking net 7, that is, the space in the first passage 6 near the second end of the housing 4 is used for accommodating the micro plastic sample, and the micro plastic in the water body cannot enter the power element 5, so that the pollution of the power element 5 cannot be caused, the service life of the power element 5 can be prolonged, and the retention of the micro plastic in the power element 5 is not required to be considered, so that the sampling accuracy can be improved. In addition, the water inlet and the water outlet 1 of the shell 4 are both positioned at the first end of the shell 4, the accommodating space of the micro plastic sample is positioned at the second end of the shell 4, and the accommodating space of the micro plastic sample is far away from the water inlet and the water outlet 1, so that disturbance of water flow to the micro plastic sample can be reduced, and the sampling accuracy is further improved.
In one embodiment of the invention, as shown in fig. 1 and 2, the power element 5 is a submersible pump mounted on the water outlet 1. Specifically, the power element 5 (submersible pump) is located in the housing 4, a first passage 6 is formed between the casing of the power element 5 (submersible pump) and the housing 4, and a second passage 9 is formed in the casing of the power element 5 (submersible pump). The water filtering port is positioned on the shell of the power element 5 (the submersible pump) and is close to the second end of the shell 4, the water filtering port is actually a water pumping port of the submersible pump, and the water outlet 1 is actually a water outlet of the submersible pump. When in sampling, the shell 4 is arranged at a preset depth of the water body, the submersible pump works, the sampled water body is pumped between the shell 4 and the outer shell through the water inlet, enters the submersible pump after being blocked by the micro plastic blocking net 7, and is discharged through the water outlet 1. The micro plastic sample is trapped between the housing 4 and the outer shell, near the second end of the outer shell. In this embodiment, the submersible pump is installed in the housing 4, and the first passage 6 and the second passage 9 are formed by using the space between the submersible pump and the housing 4 and the internal space of the submersible pump, so that the structure is simple and compact, the submersible pump can be used for multiple purposes, the submersible pump can be used as the power element 5, the component for forming the first passage 6 and the second passage 9, and the counterweight, so that the housing 4 can be conveniently submerged in sampling.
Further, in this embodiment, the axis of the power element 5 coincides with the axis of the housing 4, and the first passage 6 surrounds the outside of the second passage 9, so that the water inlet is located at the periphery of the water outlet 1, which can increase the water inlet cross-sectional area and disperse the water inlet paths, thereby improving the accuracy of sampling.
Further, in this embodiment, the water outlet 1 is connected with a drain pipe, the first end of the drain pipe is connected with the water outlet 1, the second end of the drain pipe is arranged above the water surface, and the sampled water can be discharged to the water surface, so that the disturbance of the water inlet caused by the drain water and the dilution of the concentration of the microplastic are avoided, and the sampling accuracy is further improved.
Further, in this embodiment, the flowmeter is installed on the drain pipe, and the volume of the sampled water body can be measured in an assisted manner, so that the sampling result can be analyzed conveniently.
Further, in the present embodiment, the distance (H) between the water filtering port and the second end of the housing 4 is not less than one fifth of the total length (L) of the housing 4, so that a sufficient accommodating space can be provided for the micro plastic sample, and disturbance of turbulence at the water filtering port on the micro plastic sample can be reduced.
Further, in this embodiment, the casing 4 is provided with a traction rope, the first end of the traction rope is connected with the first end of the casing 4, the second end of the traction rope is connected to the hull or the shore, and the casing 4 can be gradually lowered to a predetermined depth of the water body through the traction rope during operation, and the casing 4 can be gradually pulled out of the water surface through the traction rope. It should be noted that, in this embodiment, the first end of the pulling rope is connected to the first end of the housing 4, that is, the end of the pulling rope that is used to pull the housing 4 to provide the water inlet and the water outlet 1, so that when the housing 4 is pulled up or the housing 4 is pulled up, the micro plastic sample at the second end of the housing 4 (in the first passage 6) is not disturbed by the water outside the housing 4 due to the movement of the housing 4, and the sampling result is not damaged.
Further, in this embodiment, an auxiliary depthkeeping rope is provided on the casing 4, and when in use, a first end of the auxiliary depthkeeping rope is connected with a first end of the casing 4, and a second end of the auxiliary depthkeeping rope is connected with the hull or the shore. Specifically, the auxiliary depthkeeping rope can be fixed with a knot every one meter to estimate the depth of the shell 4 in the water body, and can also be used as a safety rope to pull the shell 4 when the traction rope fails.
Further, in the present embodiment, the housing 4 is provided with a water level sensor mounted on the outer periphery of the housing 4, and the water level depth of the housing 4 can be detected. In addition, the water level sensor cooperates with the auxiliary depthkeeping rope to be able to estimate the attitude of the housing 4 in the body of water.
Further, in this embodiment, the casing 4 is provided with the large particulate filter screen 2, and the large particulate filter screen 2 is installed on the water inlet, so that large particulate matters (such as sand stone blocks, small animals, etc. in the water body) can be filtered, and the large particulate matters are prevented from blocking the micro-plastic blocking screen 7 and damaging the sampling result.
Further, in the present embodiment, the mesh number of the microplastic blocking net 7 is not less than 250 mesh, and microplastic and foreign matters (for example, silt particles) having a diameter of more than 50 μm can be retained in the first passages 6.
Further, in this embodiment, the casing 4 is further provided with a traction collar 3, specifically, the traction collar 3 is located at the periphery of the first end of the casing 4, the number of the traction collars is two, the two traction collars are symmetrically arranged, one traction collar 3 is connected with a traction rope, and the other traction collar 3 is connected with an auxiliary depth fixing rope. In this embodiment, the traction collar 3 not only provides a connection position for the traction rope and the auxiliary depthkeeping rope, but also provides a position for the operator to hold the housing 4, which is convenient for operation.
In one embodiment of the invention, as shown in fig. 3 and 4, the power element 5 is connected to the water outlet 1 by a connecting tube. Specifically, the first end of the connecting pipe is connected with the water outlet 1, the second end of the connecting pipe is connected with the power element 5, and the power element 5 can be a water pump. In operation, the power element 5 can be installed on the ship or on the shore, and the water in the shell 4 is extracted through the connecting pipe. In this embodiment, the housing 4 is only required to be submerged to a predetermined depth of the water body during sampling, and the power element 5 is not required to be submerged, so that the carrying weight of the micro-plastic vertical sampling device for deep water body during throwing and recycling can be reduced.
Further, in this embodiment, the distance between the water filtering port and the second end of the housing 4 is smaller than the distance between the water filtering port and the first end of the housing 4, so that disturbance of water flow at the water inlet and the water outlet 1 on the micro plastic sample can be reduced. It may also be preferred that the distance separating the water filter from the second end of the housing 4 is not less than one fifth of the total length of the housing 4.
Further, in the present example, as an embodiment of the housing 4, the first passage 6 and the second passage 9 are separated by the first partition 8 in the housing 4. The first baffle plate 8 is provided with a water filtering port which is perpendicular to the second end of the shell 4, and the micro plastic blocking net 7 is enclosed at the water filtering port. In this embodiment, the water filtering mouth is directly opened on first baffle 8, cuts out the hole on first baffle 8 and can form the water filtering mouth, simple structure practices thrift the cost.
Further, in this example, as another alternative embodiment of the housing 4, the first passage 6 and the second passage 9 are separated by the second partition 10 within the housing 4. The second partition board 10 is spaced from the second end of the housing 4, and the water filtering port is located in the first passage 6 or the second passage 9 and is parallel to the second end of the housing 4. In this embodiment, the second partition 10 has a length smaller than that of the housing 4, and thus does not completely isolate the first passage 6 from the second passage 9, facilitating the flow of water between the first passage 6 and the second passage 9. The water filtering port is independently arranged and can be arranged in the first passage 6 or the second passage 9. When the water filtering port is arranged in the first passage 6, the micro plastic sample retained by the micro plastic blocking net 7 at the water filtering port is only subjected to unidirectional water flow acting force and is not easy to be disturbed; when the water filter is placed in the second passage 9, the accommodation space of the micro plastic sample is further increased (the accommodation space is a portion of the first passage 6 near the second end of the housing 4 and a portion of the second passage 9 below the water filter), so that the sampling amount can be increased.
Further, in this embodiment, in order to facilitate the throwing, recovery, pose confirmation of the housing 4 and in view of sampling accuracy, a haulage rope, an auxiliary depth fixing rope, a water level sensor, a large particulate filter screen 2, a haulage collar 3, and a flowmeter may be further provided. The traction lantern ring 3 is located at the first end of the shell 4, the traction lantern ring 3 is connected to the first end of the traction rope and the first end of the auxiliary depthkeeping rope, and the hull or the bank is connected to the second end of the traction rope and the second end of the auxiliary depthkeeping rope. The water level sensor is mounted on the outer circumference of the housing 4. The large particulate filter screen 2 is arranged on the water inlet. The flowmeter is arranged on the connecting pipe.
As shown in fig. 5 and 6, in one embodiment of the present invention, a water inlet pipe is installed at the water inlet. Specifically, the first end of inlet tube links to each other with the water inlet, and the second end of inlet tube is put into the water when using and is put into the preset position extraction water in the water. In this embodiment, the power element 5 may be installed in the housing 4, or may be located outside the housing 4, and during sampling, the power element 5 and the housing 4 need not be submerged in the water body, but only the second end of the water inlet pipe is placed in the water body to extract the water body. The throwing and the recycling are more convenient.
Further, in the present example, there are two possible embodiments of the housing 4. First, in the housing 4, the first passage 6 and the second passage 9 are partitioned by the first partition 8. A water filtering port is arranged on the first baffle plate 8, the water filtering port is arranged vertically to the second end of the shell 4, and the micro plastic blocking net 7 is enclosed at the water filtering port; second, the first passage 6 and the second passage 9 are separated by the second separator 10 in the housing 4. The second partition board 10 is spaced from the second end of the housing 4, and the water filtering port is located in the first passage 6 or the second passage 9 and is parallel to the second end of the housing 4.
Further, in this embodiment, the second end of the water inlet pipe is provided with a bell mouth, so that water can be pumped conveniently.
Further, in this embodiment, in order to fix the pose (position and posture) of the second end of the water inlet pipe in the water body, a counterweight may be further disposed at the second end of the water inlet pipe.
Further, in this embodiment, a water level sensor, a large particulate filter screen 2, and a flowmeter may be further provided to improve the accuracy of sampling. Specifically, the water level sensor is installed at the second end of the water inlet pipe. The large particulate filter screen 2 is arranged on the horn mouth of the second end of the water inlet pipe. The flowmeter is arranged on the water inlet pipe.
It is noted that in each of the above embodiments of the present invention, the power element 5 is powered by a removable power source, such as UPS (uninterruptible power supply), generator, or battery. When the parts to be put down into the water body relate to the connected circuits (such as the power supply circuit of the power element 5) and the pipelines (such as the drain pipe, the hauling rope and the connecting pipe), the circuits and the pipelines are integrated into one wire harness, so that the operation is convenient. The auxiliary depth-fixing rope is a line and does not form a wire harness with other lines and pipelines.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (8)
1. A micro-plastic vertical sampling device for deep water, comprising:
a housing, a microplastic retarding mesh, and a motive element;
the shell is slender, a water inlet and a water outlet are formed in the first end of the shell, and the second end of the shell is closed;
a first passage and a second passage which are arranged side by side are arranged in the shell along the length direction, the first end of the first passage is communicated with the water inlet, the first end of the second passage is communicated with the water outlet, and the second end of the first passage is communicated with the second end of the second passage and is communicated with the water filtering port;
the spacing distance between the water filtering port and the second end of the shell is not less than one fifth of the total length of the shell;
the microplastic retarding net is arranged on the water filtering port and used for retarding microplastic;
the power element is connected with the water outlet and is used for promoting water to flow along the water inlet, the first passage, the water filtering port, the second passage and the water outlet in sequence in the shell;
the power element is a submersible pump arranged on the water outlet;
the power element is positioned in the shell, the first passage is arranged between the shell of the power element and the shell, and the second passage is arranged in the shell of the power element;
the axis of the power element coincides with the axis of the shell, the first passage surrounds the outer side of the second passage, and the water inlet is positioned at the periphery of the water outlet;
the water filtering port is positioned on the shell of the power element and is close to the second end of the shell;
the water outlet is connected with a drain pipe, a first end of the drain pipe is connected with the water outlet, and a second end of the drain pipe is arranged above the water surface;
the shell is provided with a traction rope, a first end of the traction rope is connected with the first end of the shell, and a second end of the traction rope is connected with the ship body or the shore;
the shell is provided with a water level sensor and an auxiliary depth fixing rope;
the water level sensor is arranged on the outer periphery of the shell and is used for detecting the water level depth of the position where the shell is positioned;
the first end of the auxiliary depthkeeping rope is connected with the first end of the shell, and the second end of the auxiliary depthkeeping rope is used for being connected with a ship body or a shore.
2. The vertical sampling device for deep water body according to claim 1, wherein:
and a flowmeter is arranged on the drain pipe.
3. The vertical sampling device for deep water body according to claim 1, wherein:
the mesh number of the microplastic retarding net is not less than 250 meshes, and the microplastic retarding net is used for retaining microplastic and sundries with diameters larger than 50 micrometers in the first passage.
4. The vertical sampling device for deep water body according to claim 1, wherein:
the power element is connected with the water outlet through a first connecting pipe, the first end of the first connecting pipe is connected with the water outlet, and the second end of the first connecting pipe is connected with the power element;
the power element is arranged on the ship body or the shore, and the power element extracts the water body in the shell through the first connecting pipe.
5. The vertical sampling device for deep water body according to claim 1, wherein:
the water inlet is provided with a water inlet pipe, a first end of the water inlet pipe is connected with the water inlet, and a second end of the water inlet pipe is used for being placed in a preset position in a water body to extract the water body;
the second end of the water inlet pipe is provided with a horn mouth.
6. The micro plastic vertical sampling device for deep water according to claim 4 or 5, wherein:
within the housing, the first passageway and the second passageway are separated by a first partition;
the first partition plate is provided with the water filtering port, and the water filtering port is perpendicular to the second end of the shell;
the distance between the water filtering port and the second end of the shell is smaller than the distance between the water filtering port and the first end of the shell.
7. The micro plastic vertical sampling device for deep water according to claim 4 or 5, wherein:
within the housing, the first passageway and the second passageway are separated by a second partition;
the second partition plate is spaced from the second end of the shell, the water filtering port is positioned in the first passage or the second passage, and the water filtering port and the second end of the shell are arranged in parallel;
the distance between the water filtering port and the second end of the shell is smaller than the distance between the water filtering port and the first end of the shell.
8. The vertical sampling device for deep water body according to claim 1, wherein:
the shell is provided with a large particulate filter screen;
the large-particle filter screen is arranged on the water inlet and is used for preventing large particles from blocking the microplastic blocking screen.
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| CN107843460A (en) * | 2017-12-07 | 2018-03-27 | 山东省科学院海洋仪器仪表研究所 | Micro- plastics sampling system and method in seawater |
| CN109018221A (en) * | 2018-07-19 | 2018-12-18 | 福建师范大学福清分校 | A kind of micro- plastics recovery ship in ocean and its recovery method with the micro- plastics of Yu Haiyang |
| CN209841459U (en) * | 2019-04-28 | 2019-12-24 | 中国科学院烟台海岸带研究所 | Shipborne micro-plastic layered sampling device |
| CN111157691A (en) * | 2019-12-24 | 2020-05-15 | 华东师范大学 | Detection apparatus for micro-plastic concentration in water |
| CN114593952A (en) * | 2022-05-07 | 2022-06-07 | 中国科学院生态环境研究中心 | Water body micro-plastic collecting device and three-dimensional collecting system |
| CN115901356A (en) * | 2022-11-07 | 2023-04-04 | 清华大学 | Device and method for rapidly collecting micro-plastic in fresh water |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107843460A (en) * | 2017-12-07 | 2018-03-27 | 山东省科学院海洋仪器仪表研究所 | Micro- plastics sampling system and method in seawater |
| CN109018221A (en) * | 2018-07-19 | 2018-12-18 | 福建师范大学福清分校 | A kind of micro- plastics recovery ship in ocean and its recovery method with the micro- plastics of Yu Haiyang |
| CN209841459U (en) * | 2019-04-28 | 2019-12-24 | 中国科学院烟台海岸带研究所 | Shipborne micro-plastic layered sampling device |
| CN111157691A (en) * | 2019-12-24 | 2020-05-15 | 华东师范大学 | Detection apparatus for micro-plastic concentration in water |
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