A water-sediment cross-media new pollutant sampling device

Abstract

The utility model discloses a water - deposit medium -cross new pollutant's sampling device can realize to water body and deposit's independent sampling and storage, and further make the detection data of the sample collected can accurately reflect the migration process of pollutant between water body and deposit, specifically, water - deposit medium -cross new pollutant's sampling device includes base, and the bottom of base is equipped with sampling groove, and sampling groove includes two respectively hinged sampling claw on base, and every sampling claw all is equipped with the telescopic arm of connecting in base, when telescopic arm is at maximum stroke, two sampling claws mutually adhere and form the closed sampling chamber, when telescopic arm is at minimum stroke, two sampling claws are away from each other, and sampling claw and base have the gap between, base along the vertical direction evenly is equipped with a plurality of two ends through assembly slot, and every assembly slot all is equipped with the liquid sampling pump, and the liquid discharge end of liquid sampling pump is screwed with the liquid storage tank, and the tank wall of liquid storage tank is assembled with the exhaust valve.

Description

Technical Field

[0001] This utility model relates to the technical field of sampling equipment, and in particular to a sampling device for new pollutants in water-sediment cross-media. Background Technology

[0002] The environmental behavior and remediation of novel pollutants across water and sediment media has become a research hotspot in environmental science. The core of this research lies in elucidating the migration and transformation patterns and ecological risks of pollutants at the water-sediment interface. Since pollutants migrate between water and sediment through physical sedimentation, bioaccumulation, or chemisorption to achieve a dynamic equilibrium, sampling and analysis can trace the transport pathways and transformation mechanisms of pollutants at the interface, providing data support for risk assessment.

[0003] Existing sampling devices are too simple in structure. Although they can sample water and sediments at the same time, the collected water and sediments are usually stored in the same sampling chamber. During the sampling process, pollutants can easily migrate between the water and sediments, making it impossible for the collected samples to accurately reflect this migration process. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a sampling device for new pollutants in water-sediment cross-media, which can realize independent sampling and storage of water and sediment, thereby enabling the detection data of the collected samples to accurately reflect the migration process of pollutants between water and sediment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sampling device for novel pollutants in water and sediments across media includes a base with a sampling groove at its bottom. The sampling groove includes two sampling claws hinged to the base, each claw having a telescopic arm connected to the base. When the telescopic arm is at its maximum stroke, the two claws are in contact to form a sealed sampling chamber. When the telescopic arm is at its minimum stroke, the claws are far apart, with a gap between them and the base. The base has multiple vertically spaced, through-hole assembly slots, each containing a sampling pump. A storage tank is screwed to the pump's discharge end, and an exhaust valve is mounted on the tank wall. By utilizing multiple sampling pumps, storage tanks, and exhaust valves in coordination, water samples are collected at different depths. Throughout the formation of the sampling chamber, sediment is sampled and stored. Each storage tank for water and each sampling chamber for sediment operate independently, preventing pollutants from migrating between the collected water and sediment.

[0007] Preferably, a control compartment is also provided on the base. The port of the control compartment is equipped with a sealed door. Inside, there is a controller for controlling the operation of the liquid sampling pump and the telescopic boom, as well as a battery for providing power to the operation of the liquid sampling pump and the telescopic boom.

[0008] Preferably, the top of the base has a hanging ring, on which a lifting rope is attached. The water-sediment cross-media new pollutant sampling device also includes a signal transmission line arranged along the lifting rope. One end of the signal transmission line is connected to a host computer, and the other end is connected to a controller to realize remote control.

[0009] Preferably, a first sealing gasket is provided on the side of the sampling claw near the base. When the two sampling claws are in contact with each other, the first sealing gasket is in close contact with the base. A second sealing gasket is provided on the adjacent sides of the two sampling claws. When the two sampling claws are in contact with each other, the two second sealing gaskets intersect and adhere to each other, ensuring the airtightness of the formed sampling cavity.

[0010] Preferably, the base is also equipped with a water pressure sensor connected to the controller to locate the water sampling position.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The sampling device disclosed in this utility model can simultaneously collect water and sediment samples while preventing the migration of pollutants in the collected water and sediment samples. This allows the detection data of the collected samples to accurately reflect the migration process of pollutants between the water and sediment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Attached diagram labels: 1. Base, 11. Control compartment, 12. Hanging ring, 2. Sampling slot, 21. Sampling claw, 22. Telescopic arm, 3. Liquid sampling pump, 4. Liquid storage tank, 41. Exhaust valve, 5. Controller, 6. Battery, 7. Lifting rope, 8. Water pressure sensor. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0016] Example

[0017] like Figure 1The illustrated sampling device for new pollutants in water-sediment cross-media includes a base 1, with a sampling groove 2 at the bottom of the base 1. The sampling groove 2 includes two sampling claws 21 respectively hinged to the base 1, and each sampling claw 21 is equipped with a telescopic arm 22 connected to the base 1. When the telescopic arm 22 is at its maximum stroke, the two sampling claws 21 are close together to form a sealed sampling chamber. When the telescopic arm 22 is at its minimum stroke, the two sampling claws 21 are far apart, and there is a gap between the sampling claws 21 and the base 1. The gap is provided to discharge water during the formation of the sampling chamber. The formed sampling chamber is used for sampling sediments. Sampling of sediments is performed specifically by bringing two sampling claws 21 close together. The base 1 has multiple through-hole assembly slots evenly distributed vertically, each equipped with a sampling pump 3. A storage tank 4 is screwed to the discharge end of the sampling pump 3. An exhaust valve 41 is mounted on the wall of the storage tank 4. The sampling pump 3 injects water into the storage tank 4. During this process, air inside the storage tank 4 is expelled through the exhaust valve 41 to achieve water sampling. Multiple storage tanks 4 arranged in different locations are used to sample water at different depths. In this embodiment, the storage tanks 4 used for water collection and the sampling chambers used for sediment collection are separated, preventing pollutants in the collected water and sediment from migrating to each other, and also preventing pollutants at different depths from migrating to each other. This ensures that the collected samples accurately reflect the migration process of new pollutants across the water-sediment medium.

[0018] As a preferred embodiment of the above embodiments, a control cabin 11 is also provided on the base 1. The control cabin 11 has a sealed door at its port and is equipped with a controller 5 for controlling the operating status of the sampling pump 3 and the telescopic boom 22, as well as a battery 6 for providing power to the sampling pump 3 and the telescopic boom 22. The sampling device for new pollutants in water-sediment cross-media also includes a signal transmission line arranged along the lifting rope 7. One end of the signal transmission line is connected to the host computer, and the other end is connected to the controller 5. In some embodiments, the host computer and the controller 5 are connected through a signal transceiver module. The operator establishes communication with the controller 5 through the host computer to remotely control the operating status of the telescopic boom 22 and each sampling pump 3 to sample water and sediment.

[0019] As a preferred embodiment of the above, the top of the base 1 has a hanging ring 12, and a lifting rope 7 is attached to the hanging ring 12. The operator can adjust the position of the base 1 by raising and lowering the lifting rope 7.

[0020] As a preferred embodiment of the above, a first sealing gasket is provided on the side of the sampling claw 21 near the base 1. When the two sampling claws 21 are in contact with each other, the first sealing gasket is in close contact with the base 1. A second sealing gasket is provided on the adjacent sides of the two sampling claws 21. When the two sampling claws 21 are in contact with each other, the two second sealing gaskets intersect and adhere to each other to ensure the airtightness of the sampling cavity, thereby preventing the contaminants in the sediment from spreading out of the sampling cavity, making the analysis data of the sediment more accurate.

[0021] As a preferred embodiment of the above, the base 1 is also equipped with a water pressure sensor 8 connected to the controller. Utilizing the fact that water pressure increases with depth, the water pressure data fed back by the water pressure sensor 8, combined with the density of the water, can be used to calculate the water depth position of the water pressure sensor 8 on the base 1. The water depth position of the water pressure sensor 8, plus the vertical distance between the inlet end of each liquid sampling pump 3 and the water pressure sensor 8, can be used to calculate the water depth position of the inlet end of each liquid sampling pump 3. During the sampling process, the operating status of each liquid sampling pump 3 can be controlled by the controller according to the water depth position of the inlet end of each liquid sampling pump 3 to achieve sampling of water at different water depth positions.

[0022] In summary, the sampling device for new pollutants in water-sediment cross-media disclosed in this utility model can simultaneously collect sediment samples and water samples at different depths, and the collected sediment samples and water samples at different depths are stored independently, so that there is no migration channel between pollutants in sediment samples and water samples at different depths, thereby ensuring that the collected samples can accurately reflect the migration process of new pollutants in water-sediment cross-media.

[0023] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A sampling device for novel pollutants across water and sediment media, characterized in that, Includes a base (1), the bottom of which is provided with a sampling groove (2), the sampling groove (2) includes two sampling claws (21) respectively hinged to the base (1), and each sampling claw (21) is provided with a telescopic arm (22) connected to the base (1). When the telescopic arm (22) is at its maximum stroke, the two sampling claws (21) fit together to form a closed sampling cavity. When the telescopic arm (22) is at its minimum stroke, the two sampling claws (21) move away from each other, and there is a gap between the sampling claw (21) and the base (1). The base (1) is provided with a plurality of assembly slots that are open at both ends in a vertical direction, and each assembly slot is provided with a liquid sampling pump (3). The liquid sampling pump (3) is screwed to a liquid storage tank (4) at the discharge end. An exhaust valve (41) is installed on the tank wall of the liquid storage tank (4).

2. The sampling device for new pollutants across media in water and sediments according to claim 1, characterized in that, The base (1) is also provided with a control compartment (11). The port of the control compartment (11) is provided with a sealed door. Inside, there is a controller (5) for controlling the operation of the liquid pump (3) and the telescopic arm (22), as well as a battery (6) for providing power for the operation of the liquid pump (3) and the telescopic arm (22).

3. The sampling device for new pollutants across media in water and sediments according to claim 2, characterized in that, The base (1) has a hanging ring (12) on its top, and a lifting rope (7) is attached to the hanging ring (12). The water-sediment cross-media new pollutant sampling device also includes a signal transmission line arranged along the lifting rope (7). One end of the signal transmission line is connected to the host computer, and the other end is connected to the controller (5).

4. The sampling device for new pollutants across media in water-sediments according to claim 3, characterized in that, The sampling claw (21) has a first sealing gasket on the side near the base (1). When the two sampling claws (21) are in contact with each other, the first sealing gasket is in close contact with the base (1).

5. The sampling device for new pollutants across media in water and sediments according to claim 4, characterized in that, The two sampling claws (21) are provided with a second sealing gasket on their adjacent surfaces. When the two sampling claws (21) are in contact with each other, the two second sealing gaskets are intersected and in contact.

6. The sampling apparatus for new pollutants in water-sediment cross-media according to any one of claims 2-5, characterized in that, The base (1) is also equipped with a water pressure sensor (8) that is connected to the controller (5).

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