Passive adsorption sampling device for organic pollutants in water body

Abstract

The invention discloses a passive adsorption sampling device for organic pollutants in a water body. The passive adsorption sampling device comprises a sampling assembly and an anchoring assembly, the sampling assembly can collect pollutants and purify a water body, meanwhile, secondary pollution caused by flocculating agent leakage in the process of flocculating part of organic pollutants is avoided, the filter cover can filter part of large-particle inorganic pollutants at first, the working pressure of the device is relieved, the anchoring assembly can position the device, and the sampling assembly can be used for collecting the pollutants and purifying the water body. The device is prevented from moving to other water areas under the impact of water flow to influence the sampling result.

Description

Technical Field

[0001] The invention relates to the technical field of pollutant sampling, and in particular to a passive adsorption sampling device for organic pollutants in water. Background Art

[0002] Various harmful substances or energies that cause the deterioration of water quality, aquatic biological communities and bottom sediment quality can be called water pollutants. From a chemical point of view, water pollutants can be divided into four categories: inorganic harmful substances, inorganic toxic substances, organic harmful substances and organic toxic substances. The physical sampling and collection method of organic pollutants is mostly adsorption sampling, among which passive sampling is suitable for sampling and collecting pollutants in wider waters.

[0003] However, the existing sampling devices need to process pollutants fixed by flocculants. When sampling pollutants in deep water bodies, the flocculants are easily discharged directly into the water body, causing secondary pollution, thereby reducing the effectiveness of the device. Summary of the invention

[0004] The purpose of the present invention is to provide a passive adsorption sampling device for organic pollutants in water bodies, so as to solve the problem that the sampling devices in the prior art are prone to directly discharge flocculants into the water body when sampling pollutants in deep water bodies, causing secondary pollution, thereby reducing the use effect of the device.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A passive adsorption sampling device for organic pollutants in water, comprising a sampling assembly and an anchoring assembly, wherein the sampling assembly comprises a main cylinder, an outer cylinder, an inner cylinder, a filter plate, a partition plate, a flow partition plate, a flocculation generator, a cover plate and a flow sealing plate, wherein the main cylinder is coaxially sleeved on the outside of the outer cylinder, the outer cylinder is coaxially sleeved on the outside of the inner cylinder with an adsorption function, the outer cylinder is sleeved with the filter plate and the partition plate in sequence from top to bottom, and the edges of the filter plate and the partition plate are in contact with the inner wall of the main cylinder, the edge of the filter plate is provided with a vertical plate, and the vertical plate The flocculant is arranged on one side of the plate close to the outer cylinder, a sealing plate is clamped on one side of the partition close to the filter plate, the sealing plate is connected to the switch of the flocculant through a pull rope, the energized flow partition is arranged above the top of the outer cylinder, the cover is arranged on the inner top of the main cylinder, the flow sealing plate is connected below the cover, and the flow sealing plate is located above the flow partition and is attracted to each other, and plug rods are evenly arranged on the bottom end of the main cylinder, and the anchoring assembly is arranged inside the space surrounded by the plug rods.

[0007] Furthermore, an air bag is sleeved on the outer side of the main tube.

[0008] Furthermore, the inserted rods are connected by a reinforcement plate, and the anchor assembly includes an anchor block, a connecting plate, a sliding plate and a positioning rod. The connecting plate is arranged around the outside of the anchor block, and the sliding plate is inserted above the anchor block. The positioning rod is fixedly connected to the side of the sliding plate close to the connecting block, and the positioning rod passes through the connecting plate and the reinforcement plate in sequence. A support plate that can be remotely controlled to rotate is arranged above the anchor block, and the edge of the support plate is in contact with the side of the sliding plate.

[0009] Furthermore, a depth gauge and a winding drum are also provided at the bottom end of the main drum, and the winding drum is connected to the anchor block through a traction rope.

[0010] Furthermore, a guide tube is connected to the outer top end of the main tube, a filter cover is provided on the outer cover of the guide tube, a connecting shaft is passed through the center of the filter cover, one end of the connecting shaft is connected to an impeller, and the impeller is placed inside the guide tube, and the other end of the connecting shaft is connected to a cleaning brush, and the cleaning brush is in contact with the side of the filter cover.

[0011] Furthermore, a pair of side plates are rotatably connected to the outer side of the main cylinder, and the upper and lower edges of the side plates are respectively at the same height as the upper and lower bottom surfaces of the outer cylinder, and mutually engaging locking plates are provided on opposite sides of the two side plates.

[0012] Furthermore, notches are evenly formed at the top opening of the outer cylinder.

[0013] Furthermore, the cover plate is evenly provided with flow grooves, and the inner wall at the bottom end of the main tube is provided with a guide groove.

[0014] Furthermore, the guide groove is connected to the input end of the water pump, and the output end of the water pump is connected to the one-way valve.

[0015] Furthermore, the inner cylinder is made of activated carbon.

[0016] Beneficial effects:

[0017] The sampling component in the present invention can collect pollutants and purify water while avoiding secondary pollution caused by leakage of flocculants during the process of flocculating some organic pollutants. The filter cover can first filter some large particles of inorganic pollutants to reduce the working pressure of the device. The anchoring component can position the device to prevent the device from moving to other waters under the impact of water flow, thereby affecting the sampling results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure after the present invention is split;

[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0021] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0022] Figure 5 It is a schematic diagram of the structure after cutting of the present invention.

[0023] Among them: 1. airbag; 2. side plate; 3. plug rod; 4. reinforcement plate; 5. main tube; 6. support plate; 7. positioning rod; 8. connecting plate; 9. anchor block; 10. sliding plate; 11. cover plate; 12. inner tube; 13. locking plate; 14. filter plate; 15. outer tube; 16. flow groove; 17. sealing plate; 18. flocculant generator; 19. vertical plate; 20. notch; 21. pull rope; 22. sealing plate; 23. partition; 24. cleaning brush; 25. impeller; 26. filter cover; 27. guide tube; 28. guide groove; 29. ​​water pump; 30. flow partition; 31. winding drum. DETAILED DESCRIPTION

[0024] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "outer", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the invented product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, unless otherwise clearly specified and limited, the terms "installation", "connection", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] In addition, unless otherwise specified, the components used in the following embodiments are all existing components, and their corresponding connection methods can also be achieved through conventional technical means, which will not be described one by one in this application.

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Example

[0028] A passive adsorption sampling device for organic pollutants in water, such as Figures 1 to 4As shown, it includes a sampling assembly and an anchoring assembly. The sampling assembly includes a main cylinder 5, an outer cylinder 15, an inner cylinder 12, a filter plate 14, a partition plate 23, a flow partition plate 30, a flocculation generator 18, a cover plate 11 and a flow sealing plate 17. The main cylinder 5 is coaxially sleeved on the outside of the outer cylinder 15, and the outer cylinder 15 is coaxially sleeved on the outside of the inner cylinder 12. The inner cylinder 12 is made of activated carbon. The outer cylinder 15 is sleeved with the filter plate 14 and the partition plate 23 in sequence from top to bottom, and the edges of the filter plate 14 and the partition plate 23 are in contact with the inner wall of the main cylinder 5. A vertical plate 19 is arranged at the edge of the filter plate 14, and the vertical plate 19 is close to the outer cylinder. A flocculant 18 is arranged on one side of the main tube 15, a sealing plate 22 is clamped on one side of the partition 23 close to the filter plate 14, and the sealing plate 22 is connected to the switch of the flocculant 18 through a pull rope 21, an energized flow partition 30 is arranged above the top of the outer tube 15, a cover plate 11 is arranged on the inner top of the main tube 5, and a flow slot 16 is evenly arranged on the cover plate 11, and a flow sealing plate 17 is connected below the cover plate 11, and the flow sealing plate 17 is located above the flow partition 30 and is attracted to each other, and a plug rod 3 is evenly arranged at the bottom of the main tube 5, and an anchoring assembly is arranged inside the space surrounded by the plug rod 3. Among them, a notch 20 is evenly arranged at the top opening of the outer tube 15, and a guide groove 28 is arranged on the inner wall of the bottom of the main tube 5, and the guide groove 28 is connected to the input end of the water pump 29, and the output end of the water pump 29 is connected to the one-way valve.

[0029] Specifically, the sampling assembly in this embodiment is placed at the position where sampling is required in the water body under the action of the anchoring assembly. When the main cylinder 5 moves to the depth to be sampled, the magnetic poles of the energized flow partition 30 are changed so that the flow partition 30 attracts the flow sealing plate 17 to move downward. At this time, the cover plate 11 in contact with the top of the inner wall of the main cylinder 5 will move downward synchronously under the traction of the flow sealing plate 17, and the flow grooves 16 evenly opened on the cover plate 11 will introduce the water sample to be processed into the main cylinder 5. At the same time, since the flow sealing plate 17 is attracted to the top of the flow partition 30, the water sample introduced into the main cylinder 5 in this process will be stored in the cavity at the top of the flow partition 30. After a period of time, the magnetic poles of the flow partition 30 are changed. At this time, the flow partition 30 will repel the flow sealing plate 17, so that the flow sealing plate 17 moves up, and the flow sealing plate 17 will synchronously drive the cover plate 11 to move up until the top of the inner wall of the main cylinder 5 re-closes the flow groove 16 at the top of the cover plate 11. In this process, the water sample will be introduced into the outer cylinder 15 through the flow partition 30. The activated carbon inner cylinder 12 arranged in 15 will first absorb part of the organic pollutants and pressurize the water sample inside the inner cylinder 12. The water sample will penetrate into the cavity between the outer cylinder 15 and the main cylinder 5 through the notch 20 opened at the top of the outer cylinder 15. At this time, the flocculation generator 18 is turned on to fill the space above the filter plate 14 with flocculant. Part of the organic pollutants that have seeped out of the outer cylinder 15 will form flocculent precipitation under the action of the flocculant. After being treated with the flocculant, the water sample will pass through the filter plate 14 and enter the cavity between the filter plate 14 and the partition 23. After completing the treatment of all the water samples in the inner cylinder 12, the flocculation generator 18 is automatically closed. The switch of the flocculation generator 18 will pull the sealing plate 22 to rotate along the partition 23 through the pull rope 21. At this time, the water sample can enter the bottom space of the partition 23 from the original position of the sealing plate 22, and finally flow to the input end of the water pump 29 through the guide groove 28 opened on the bottom wall of the main cylinder 5, and be pumped to the one-way valve by the water pump 29 and discharged to the outside of the device, thereby realizing a sampling process.

[0030] Preferably, the insertion rods 3 are connected by a reinforcement plate 4, and the anchor assembly includes an anchor block 9, a connecting plate 8, a sliding plate 10 and a positioning rod 7. The connecting plate 8 is arranged around the outside of the anchor block 9, and a sliding plate 10 is inserted above the anchor block 9. The side of the sliding plate 10 close to the connecting block 8 is fixedly connected to the positioning rod 7, and the positioning rod 7 passes through the connecting plate 8 and the reinforcement plate 4 in sequence. A support plate 6 that can be remotely controlled to rotate is arranged above the anchor block 9, and the edge of the support plate 6 is in contact with the side of the sliding plate 10. The outer side of the main tube 5 is sleeved with an air bag 1, and the bottom end of the main tube 5 is also provided with a depth gauge and a winding drum 31, and the winding drum 31 is connected to the anchor block 9 through a traction rope.

[0031] Specifically, the anchoring assembly can position the device to prevent the device from moving to other waters under the impact of water flow, thereby affecting the sampling results. When the device moves to the bottom of the water and needs to release the connection between the main tube 5 and the anchor block 9, the support plate 6 is controlled to rotate so that the support plate 6 no longer contacts one side of the sliding plate 10. At this time, the buoyancy of the air bag 1 set on the outside of the main tube 5 will drive the main tube 5 to move upward. At the same time, since the positioning rod 7 extends obliquely upward, the positioning rod 7 will drive the sliding plate 10 to move inward under the action of the insertion rod 3 at the bottom of the main tube 5 until the positioning rod 7 is disconnected from the reinforcement plate 4. The sampling depth can be controlled by controlling the depth of the main tube 5 through the winding drum 31 and the traction rope, so as to help the user achieve the sampling goal.

[0032] Preferably, the outer top end of the main tube 5 is connected to a guide tube 27, the outer cover of the guide tube 27 is provided with a filter cover 26, a connecting shaft is passed through the center of the filter cover 26, one end of the connecting shaft is connected to the impeller 25, and the impeller 25 is placed inside the guide tube 27, and the other end of the connecting shaft is connected to the cleaning brush 24, and the cleaning brush 24 is in contact with the side of the filter cover 26.

[0033] Specifically, the filter cover 26 can first filter some large particles of inorganic pollutants to reduce the working pressure of the device. When the cover plate 11 moves down, the water flow will pass through the filter cover 26 and enter the guide tube 27 at the top of the main tube 5. In this process, the water flow will drive the impeller 25 to rotate, and the impeller 25 will drive the cleaning brush 24 coaxially connected to its top to rotate synchronously to clean the outside of the filter cover 26, thereby maintaining the filtering effect of the filter cover 26.

[0034] Preferably, a pair of side plates 2 are rotatably connected to the outer side of the main cylinder 5, and the upper and lower edges of the side plates 2 are respectively at the same height as the upper and lower bottom surfaces of the outer cylinder 15, and mutually attracted locking plates 13 are provided on opposite sides of the two side plates 2.

[0035] Directions:

[0036] When using the device to collect organic pollutants in water, it is necessary to first inflate the airbag 1 outside the outer cylinder 15, so that the airbag 1 is full and then the device is placed at the designated position. At this time, the anchor block 9 in the anchor assembly will drive the entire device to gradually sink to the bottom. The user can understand the movement of the device through the depth gauge set at the bottom of the main cylinder 5. When the position of the device tends to be stable, the support plate 6 in the anchor assembly will rotate to make the anchor block 9 break away from the fixed connection with the main cylinder 5. At this time, the depth position of the main cylinder 5 is controlled by the winding drum and the airbag 1. When the main cylinder 5 moves to the depth to be sampled, the flow slot 16 at the top of the main cylinder 5 is opened by controlling the magnetic poles of the flow partition plate 30 of the sampling assembly, and the water sample is introduced into the outer cylinder 15 and then the flow slot 16 is closed. The water sample introduced into the outer cylinder 15 is first adsorbed under the action of the inner cylinder 12, and then a flocculant is added through the flocculation generator 18, so that the water sample forms flocculation precipitation under the action of the flocculant (refer to the sampling principle of the above-mentioned sampling assembly for details). The treated water sample is finally discharged from the device, and a sampling is completed;

[0037] The above sampling and purification process is repeated until the sampling work is completed. The user takes the device out of the water body, and then releases the suction state between the two locking plates 13 on the opposite sides of the two side plates 2, and opens the two side plates 2 to both sides at the same time, and then takes out the outer cylinder 15 to obtain the organic pollutant samples to be collected from the inner cylinder 12 and the filter plate 14.

[0038] Although the embodiments of the present invention are described in the specification, these embodiments are only for reference and should not limit the protection scope of the present invention. Various omissions, substitutions and changes within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A passive adsorption sampling device for organic pollutants in water, characterized in that: The invention comprises a sampling assembly and an anchoring assembly, wherein the sampling assembly comprises a main cylinder, an outer cylinder, an inner cylinder, a filter plate, a partition plate, a flow partition plate, a flocculation generator, a cover plate and a flow sealing plate, wherein the main cylinder is coaxially sleeved on the outside of the outer cylinder, the outer cylinder is coaxially sleeved on the outside of the inner cylinder having an adsorption function, the filter plate and the partition plate are sleeved on the outer cylinder in sequence from top to bottom, and the edges of the filter plate and the partition plate are in contact with the inner wall of the main cylinder, a vertical plate is arranged at the edge of the filter plate, and a vertical plate is arranged on one side of the vertical plate close to the outer cylinder The flocculation generator is arranged, a sealing plate is clamped on one side of the partition close to the filter plate, the sealing plate is connected to the switch of the flocculation generator through a pull rope, the energized flow partition is arranged above the top of the outer cylinder, the cover plate is arranged at the inner top of the main cylinder, the flow sealing plate is connected below the cover plate, and the flow sealing plates are located above the flow partition and are attracted to each other, and plug rods are evenly arranged at the bottom end of the main cylinder, and the anchoring assembly is arranged inside the space surrounded by the plug rods.

2. The passive adsorption sampling device for organic pollutants in water according to claim 1, characterized in that: An air bag is sleeved on the outer side of the main tube.

3. The passive adsorption sampling device for organic pollutants in water according to claim 1, characterized in that: The insertion rods are connected by a reinforcement plate, and the anchor assembly includes an anchor block, a connecting plate, a sliding plate and a positioning rod. The connecting plate is arranged around the outside of the anchor block, and the sliding plate is inserted above the anchor block. The positioning rod is fixedly connected to the side of the sliding plate close to the connecting block, and the positioning rod passes through the connecting plate and the reinforcement plate in sequence. A support plate that can be remotely controlled to rotate is arranged above the anchor block, and the edge of the support plate is in contact with the side of the sliding plate.

4. The passive adsorption sampling device for organic pollutants in water according to claim 3, characterized in that: A depth gauge and a winding drum are also provided at the bottom end of the main drum, and the winding drum is connected to the anchor block through a traction rope.

5. The passive adsorption sampling device for organic pollutants in water according to claim 1, characterized in that: The outer top end of the main tube is connected to a guide tube, the outer cover of the guide tube is provided with a filter cover, a connecting shaft is passed through the center of the filter cover, one end of the connecting shaft is connected to an impeller, and the impeller is placed inside the guide tube, and the other end of the connecting shaft is connected to a cleaning brush, and the cleaning brush is in contact with the side of the filter cover.

6. The passive adsorption sampling device for organic pollutants in water according to claim 1, characterized in that: A pair of side plates are rotatably connected to the outer side of the main cylinder, and the upper and lower edges of the side plates are respectively at the same height as the upper and lower bottom surfaces of the outer cylinder. Mutually attracted locking plates are arranged on opposite sides of the two side plates.

7. The passive adsorption sampling device for organic pollutants in water according to claim 1, characterized in that: Notches are evenly formed at the top opening of the outer cylinder.

8. The passive adsorption sampling device for organic pollutants in water according to claim 1, characterized in that: The cover plate is evenly provided with flow grooves, and the inner wall at the bottom end of the main cylinder is provided with a guide groove.

9. The passive adsorption sampling device for organic pollutants in water according to claim 8, characterized in that: The guide groove is connected to the input end of the water pump, and the output end of the water pump is connected to the one-way valve.

10. The passive adsorption sampling device for organic pollutants in water according to claim 1, characterized in that: The inner cylinder is made of activated carbon.

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