Portable underground water well washing, sampling and heavy metal detection integrated device

Abstract

The invention relates to the technical field of environmental monitoring, and discloses a portable underground water well washing, sampling and heavy metal detection integrated device which comprises a box body, the well washing and sampling assembly comprises a well washing piece and a sampling piece, one end of the well washing piece and one end of the sampling piece both extend into underground water, the well washing piece is used for well washing and drainage, and the sampling piece is used for sampling the underground water after well washing; the detection assembly comprises a storage bottle and a detection part, the storage bottle is fixedly connected in the box body and is communicated with the other end of the sampling part, and the detection part is arranged in the box body and is used for extracting and detecting a sample stored in the storage bottle; the control processing module is arranged in the box body, and the well washing sampling assembly and the detection assembly are connected with the control processing module. According to the invention, the problems of scattered equipment, tedious operation and long period in the traditional method are solved, the whole-course automatic control from well washing to detection result output can be realized, and the efficiency and convenience of field on-site monitoring are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of environmental monitoring technology, and in particular to a portable integrated device for groundwater well washing, sampling, and heavy metal detection. Background Technology

[0002] Groundwater environmental monitoring is a crucial aspect of environmental protection and water resource management. Currently, monitoring heavy metal pollution in groundwater typically follows a cumbersome process: first, wells are flushed using a Bayle tube or large well-washing equipment until the water flow stabilizes; then, water samples are collected using a separate sampler and injected into sample vials; finally, the sample vials are cryogenically preserved and transported to a laboratory for analysis using large instruments such as inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectrometry (AAS).

[0003] The aforementioned traditional methods have significant drawbacks: First, the process involves multiple sets of independent equipment, which are inconvenient to carry, especially in complex terrain conditions in the field; second, the cycle from sampling to obtaining analysis results is too long, which cannot meet the needs of environmental emergency monitoring or rapid on-site decision-making; third, there is a risk of sample contamination or changes in water quality during transportation and preservation, affecting the accuracy of the results; and finally, the entire process is costly in terms of manpower and resources.

[0004] Therefore, there is an urgent need for a portable integrated device for groundwater well washing, sampling, and heavy metal detection to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a portable integrated device for groundwater well washing, sampling, and heavy metal detection, in order to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a portable integrated device for groundwater well washing, sampling, and heavy metal detection, comprising:

[0007] Box;

[0008] A well-washing sampling assembly includes a well-washing component and a sampling component, both of which extend into groundwater at one end. The well-washing component is used for well-washing drainage, and the sampling component is used for sampling groundwater after well-washing.

[0009] The detection component includes a storage bottle and a detection element. The storage bottle is fixedly connected to the box and communicates with the other end of the sampling element. The detection element is disposed in the box and is used to extract and detect the sample stored in the storage bottle.

[0010] A control and processing module is located inside the housing, and the well washing sampling component and the detection component are respectively connected to the control and processing module.

[0011] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided. The well washing device includes a first pipeline, one end of which is fixedly connected to a first submersible pump for pumping groundwater. A first electromagnetic valve is provided on the first pipeline for controlling the opening or closing of the first pipeline.

[0012] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided. The sampling component includes a second pipeline, one end of which is fixedly connected to a second submersible pump for pumping groundwater. The other end of the second pipeline is connected to the inlet of the storage bottle. A second electromagnetic valve is provided on the second pipeline for controlling the opening or closing of the second pipeline.

[0013] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided. The detection component includes a turntable, the bottom center of which is rotatably connected to the housing via a rotating shaft. The turntable has a plurality of grooves evenly spaced along its circumference, and a microfluidic chip is disposed in each groove. A plurality of sampling elements are disposed on the turntable. The microfluidic chip is limited and connected to the grooves through the sampling elements, and extracts samples from the storage bottle through the sampling elements.

[0014] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided. The sampling component includes a plurality of support frames fixedly connected to the top of the turntable. Each of the plurality of support frames corresponds to a plurality of grooves. Two first support rods are fixedly connected to the support frames. A first support plate is slidably connected to the first support rods. A first sampling tube is fixedly connected to the first support plate. A liquid inlet is opened at the top of the microfluidic chip. The bottom end of the first sampling tube is limitedly connected to the liquid inlet. A first spring is sleeved on the first support rod. The two ends of the first spring are fixedly connected to the first support rod and the first support plate, respectively.

[0015] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided. A second sampling tube is slidably connected inside the first sampling tube. The top end of the second sampling tube extends out of the support frame and is fixedly connected to a sampling groove. When the sampling groove moves to the bottom of the storage bottle, the sampling groove communicates with the bottom end of the storage bottle. A second spring is sleeved on the second sampling tube, and the two ends of the second spring are fixedly connected to the bottom end of the sampling groove and the top end of the support frame, respectively.

[0016] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided. The storage bottle has a drain outlet at the bottom, and a drain pipe is slidably connected inside the drain outlet. The drain pipe has several through holes at the top of its side wall. When the bottom of the drain pipe contacts the second sampling tube, the drain pipe communicates with the storage bottle through the through holes.

[0017] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided. The top end of the drain pipe extends into the storage bottle and is fixedly connected to a second support plate. Two second support rods are fixedly connected to the second support plate. A support ring is fixedly connected to the inner wall of the storage bottle. The second support rods are slidably connected to the support rings. A third spring is sleeved on the second support rods. The two ends of the third spring are fixedly connected to the second support rods and the support rings, respectively.

[0018] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided, wherein a toggle block is fixedly connected to the storage bottle by a third support rod, and the top end of the toggle block slides in contact with the bottom end of the sampling groove.

[0019] According to the present invention, a portable integrated device for groundwater well washing, sampling, and heavy metal detection is provided, wherein the sampling tank has an arc-shaped cross-section, and the length of the arc-shaped structure is greater than the diameter of the drainage pipe.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] This invention provides a portable integrated device for groundwater well washing, sampling, and heavy metal detection. It uses a well-washing and sampling component to perform well washing and sampling, and the sampled material is stored in a storage bottle. A detection component then performs sampling and testing within the storage bottle. The device integrates the three main functional modules of well washing, sampling, and detection with a control and processing module into a single unit, achieving a high degree of integration and portability in the groundwater monitoring process. This application solves the problems of dispersed equipment, cumbersome operation, and long cycles in traditional methods, enabling fully automated control from well washing to result output, greatly improving the efficiency and convenience of field monitoring. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged view of a portion of point A in the middle;

[0025] Figure 3 This is a top view of the turntable of the present invention;

[0026] Figure 4 This is a schematic diagram of the sampling component structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the actuating block structure of the present invention;

[0028] The components are as follows: 1. Box body; 2. Storage bottle; 3. First pipeline; 4. First submersible pump; 5. First solenoid valve; 6. Second pipeline; 7. Second submersible pump; 8. Water inlet; 9. Second solenoid valve; 10. Turntable; 11. Groove; 12. Microfluidic chip; 13. Support frame; 14. First support rod; 15. First support plate; 16. First sampling tube; 17. Liquid inlet; 18. Second sampling tube; 19. Sampling groove; 20. Drain outlet; 21. Drain pipe; 22. Through hole; 23. Second support plate; 24. Second support rod; 25. Support ring; 26. First spring; 27. Second spring; 28. Third spring; 29. ​​Third support rod; 30. Actuating block; 31. Control processing module. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] A groundwater well-washing sampling device is disclosed in related technologies, including a flushing pipe and a sewage discharge device installed on a lifting platform, as well as a water supply device connected to the flushing pipe. The flushing pipe passes through the lifting platform and includes a stirring component rotatably mounted on the lifting platform. The stirring component has a water passage chamber and several water passage holes on its side wall, which communicate with the water passage chamber. The flushing pipe is located inside the water passage chamber, and the outer wall of the stirring component also has a stirring part. This technical solution solves the problem of low working efficiency in existing clean water well-washing equipment.

[0032] A groundwater sampling device is disclosed in related technologies, including a sampling tube with a lower water intake head threadedly connected to its bottom end. The lower water intake head has a second water inlet at its bottom end, comprising a threaded channel and a water-stopping cavity. A sealing plate is rotatably connected to the bottom surface of the water-stopping cavity. A threaded pipe is threadedly connected to the threaded channel, and a drainage shell is fixedly connected to the bottom end of the threaded pipe. A drainage pipe is connected to the bottom end of the drainage shell. After water sampling is completed, the threaded pipe is threaded onto the threaded channel. A pusher component pushes a push rod, causing the push rod to pass through the threaded pipe and threaded channel and lift the sealing plate. Water can then be discharged through the threaded pipe, drainage shell, and drainage pipe. The extracted water is drained into a storage container through the drainage pipe. The adjusting rod can be rotated at any time to reverse the direction, resetting the push rod, canceling the pushing action on the sealing plate, and stopping drainage. This facilitates the adjustment and discharge of water extracted from the sampling tube into multiple storage containers.

[0033] The aforementioned related technologies involve multiple sets of independent equipment, which are inconvenient to carry, especially in complex terrain conditions in the field. To solve the above problems, this application proposes the following technical solution:

[0034] Reference Figures 1-5 This invention provides a portable integrated device for groundwater well washing, sampling, and heavy metal detection, comprising:

[0035] Box 1;

[0036] The well-washing and sampling assembly includes a well-washing component and a sampling component, both of which extend into the groundwater at one end. The well-washing component is used for well-washing and drainage, and the sampling component is used for sampling the groundwater after well-washing.

[0037] The detection component includes a storage bottle 2 and a detection element. The storage bottle 2 is fixedly connected inside the housing 1 and communicates with the other end of the sampling element. The detection element is set inside the housing 1 and is used to extract and detect the sample stored in the storage bottle 2.

[0038] The control and processing module 31 is located inside the housing 1, and the well washing sampling component and the detection component are respectively connected to the control and processing module 31.

[0039] In one embodiment of the present invention, the three functional modules of well washing, sampling, and detection, along with the control and processing module 31, are integrated into a single housing 1, achieving a high degree of integration and portability in the groundwater monitoring process. This design solves the problems of dispersed equipment, cumbersome operation, and long cycles in traditional methods, enabling fully automated control from well washing to output of detection results, greatly improving the efficiency and convenience of field monitoring.

[0040] As an optional implementation, the well washing component includes a first pipeline 3, one end of which is fixedly connected to a first submersible pump 4, which is used to extract groundwater. A first electromagnetic valve 5 is provided on the first pipeline 3 to control the opening or closing of the first pipeline 3.

[0041] In one embodiment of the present invention, a separate first pipeline 3 and a first submersible pump 4 are provided specifically for well washing drainage, and the on / off control is achieved through a first electromagnetic valve 5, thus realizing the independence and controllability of the well washing process. This design ensures that unstable water bodies in the well can be effectively discharged during the well washing stage, laying the foundation for subsequent collection of representative water samples, while preventing well washing wastewater from mixing into the sampling system.

[0042] As an optional implementation, the sampling device includes a second pipeline 6, one end of which is fixedly connected to a second submersible pump 7 for extracting groundwater, and the other end of the second pipeline 6 is connected to the inlet 8 of the storage bottle 2. A second solenoid valve 9 is provided on the second pipeline 6 for controlling the opening or closing of the second pipeline 6.

[0043] In one embodiment of the present invention, a separate second pipeline 6 and a second submersible pump 7 are provided specifically for sampling and controlled by a second solenoid valve 9, achieving physical isolation and timing switching from the well-washing process. This design effectively prevents contaminants remaining from the well-washing stage from entering the sampling pipeline, ensuring the representativeness and accuracy of the collected water samples, and delivering the water samples to the storage bottle 2 without damage.

[0044] As an optional implementation, the detection device includes a turntable 10, which is rotatably connected to the housing 1 via a rotating shaft at the bottom center. The turntable 10 has several grooves 11 evenly spaced along the circumference. A microfluidic chip 12 is disposed in the groove 11. Several sampling components are disposed on the turntable 10. The microfluidic chip 12 is limited and connected to the groove 11 through the sampling components, and extracts samples from the storage bottle 2 through the sampling components.

[0045] In one embodiment of the present invention, a turntable 10 is used to carry multiple microfluidic chips 12, which realizes the automation and high throughput of the detection process. The turntable 10 can be rotated and positioned so that different microfluidic chips 12 enter the sampling station in sequence, thereby enabling multiple parallel detections of water samples in the same storage bottle 2, or reserving the ability to continuously detect different water samples, which significantly improves the detection efficiency of the device and the reliability of the data.

[0046] As an optional implementation, the sampling component includes several support frames 13 fixedly connected to the top of the turntable 10. Each of the support frames 13 corresponds to a certain number of grooves 11. Two first support rods 14 are fixedly connected to the support frames 13. A first support plate 15 is slidably connected to the first support rods 14. A first sampling tube 16 is fixedly connected to the first support plate 15. A liquid inlet 17 is opened at the top of the microfluidic chip 12. The bottom end of the first sampling tube 16 is limitedly connected to the liquid inlet 17. A first spring 26 is sleeved on the first support rods 14. The two ends of the first spring 26 are fixedly connected to the first support rods 14 and the first support plate 15, respectively.

[0047] In one embodiment of the present invention, the downward pressure provided by the first spring 26 ensures that the bottom end of the first sampling tube 16 is always tightly connected to the liquid inlet 17 of the microfluidic chip 12. This design ensures the sealing of the sample delivery pipeline, effectively preventing leakage or splashing of liquid during delivery, ensuring that a quantitative amount of sample is accurately and reliably injected into the microfluidic chip 12, and also enabling convenient replacement of the microfluidic chip 12.

[0048] As an optional implementation, a second sampling tube 18 is slidably connected inside the first sampling tube 16. The top end of the second sampling tube 18 extends out of the support frame 13 and is fixedly connected to a sampling groove 19. When the sampling groove 19 moves below the storage bottle 2, it communicates with the bottom end of the storage bottle 2. A second spring 27 is sleeved on the second sampling tube 18, and both ends of the second spring 27 are fixedly connected to the bottom end of the sampling groove 19 and the top end of the support frame 13, respectively.

[0049] In one embodiment of the present invention, the second sampling tube 18 can slide inside the first sampling tube 16 and be reset by the second spring 27, forming a retractable sampling head structure that can rise to the bottom of the storage bottle 2 to connect for sampling.

[0050] As an optional implementation, the storage bottle 2 has a drain outlet 20 at the bottom, and a drain pipe 21 is slidably connected inside the drain outlet 20. The top of the side wall of the drain pipe 21 has several through holes 22. When the bottom of the drain pipe 21 contacts the second sampling tube 18, the drain pipe 21 communicates with the storage bottle 2 through the through holes 22.

[0051] In one embodiment of the present invention, a controlled valve function is achieved by sliding the drain pipe 21 within the drain outlet 20 and by designing the through hole 22. When the drain pipe 21 is lifted, the through hole 22 communicates with the inside of the bottle and begins to drain; when the drain pipe 21 is reset, the through hole 22 is blocked by the bottle wall and automatically closes.

[0052] As an optional implementation, the top end of the drain pipe 21 extends into the storage bottle 2 and is fixedly connected to a second support plate 23. Two second support rods 24 are fixedly connected to the second support plate 23. A support ring 25 is fixedly connected to the inner wall of the storage bottle 2. The second support rods 24 are slidably connected to the support ring 25. A third spring 28 is sleeved on the second support rods 24. The two ends of the third spring 28 are fixedly connected to the second support rods 24 and the support ring 25, respectively.

[0053] In one embodiment of the present invention, the preload of the third spring 28 causes the drain pipe 21 to be limited downward under normal conditions, keeping the through hole 22 in a closed state.

[0054] As an optional implementation, a toggle block 30 is fixedly connected to the storage bottle 2 via a third support rod 29, and the top of the toggle block 30 slides in contact with the bottom of the sampling groove 19.

[0055] In one embodiment of the present invention, the bottom end of the sampling groove 19 contacts the actuating block 30. The actuating block 30 has an isosceles trapezoidal cross section. The sampling groove 19 is gradually lifted so that the top of its groove wall is in stable contact with the bottom end of the drain pipe 21 for sampling. The samples are then gradually separated to ensure the stable sealing of the drain pipe 21 and prevent the samples from dripping outside the sampling groove 19.

[0056] As an optional implementation, the sampling groove 19 has an arc-shaped cross-section, and the length of the arc-shaped structure is greater than the diameter of the drain pipe 21.

[0057] In one embodiment of the present invention, the sampling groove 19 with an arc-shaped cross-section and a length greater than the diameter of the drain pipe 21 ensures the docking time between the sampling groove 19 and the drain pipe 21 when the sampling groove 19 makes a circular motion, thereby ensuring the stability of the sampling.

[0058] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0059] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A portable device for groundwater well washing, sampling and heavy metal detection, characterized in that, The utility model relates to a kind of well flushing sampling assemblies and detection assemblies, including: Box (1); Well flushing sampling assembly, including well flushing part and sampling part, the well flushing part and the sampling part one end are stretched into underground water, the well flushing part is used to well flushing drainage, the sampling part is used to sample underground water after well flushing; Detection assembly, including storage bottle (2) and detection part, the storage bottle (2) is fixedly connected in the box (1) and is communicated with the other end of the sampling part, the detection part is arranged in the box (1), for extracting detection to the sample stored in the storage bottle (2); Control processing module (31) is set in the box (1), and the well flushing sampling assembly and the detection assembly are connected with the control processing module (31) respectively.

2. The portable device for well washing, sampling and heavy metal detecting of groundwater according to claim 1, characterized in that: The well flushing part includes first pipeline (3), one end of the first pipeline (3) is fixedly connected with first submersible pump (4), and the first submersible pump (4) is used to extract underground water, and a first electromagnetic valve (5) is arranged on the first pipeline (3) to control the opening or closure of the first pipeline (3).

3. The portable device for well washing, sampling and heavy metal detecting of groundwater according to claim 1, characterized in that: The sampling part includes second pipeline (6), one end of the second pipeline (6) is fixedly connected with second submersible pump (7), and the second submersible pump (7) is used to extract underground water, and the other end of the second pipeline (6) is communicated with the water inlet (8) of the storage bottle (2), and a second electromagnetic valve (9) is arranged on the second pipeline (6) to control the opening or closure of the second pipeline (6).

4. The portable device for well washing, sampling and heavy metal detecting of groundwater according to claim 1, characterized in that: The detection part includes rotating disc (10), and the bottom end is rotationally connected in the box (1) through rotating shaft, a plurality of grooves (11) are equidistantly formed on the rotating disc (10) in circumferential direction, a microfluidic chip (12) is arranged in the groove (11), a plurality of sampling parts are arranged on the rotating disc (10), the microfluidic chip (12) is limitingly connected with the groove (11) through the sampling part, and the sampling part extracts sample from the storage bottle (2).

5. The portable device for well washing, sampling and heavy metal detecting of groundwater according to claim 4, characterized in that: The sampling part includes a plurality of support frames (13) fixedly connected to the top end of the rotating disc (10), a plurality of the support frames (13) correspond to a plurality of the grooves (11) respectively, two first support rods (14) are fixedly connected to the support frame (13), a first support plate (15) is slidably connected to the first support rod (14), a first sampling tube (16) is fixedly connected to the first support plate (15), a liquid inlet (17) is formed at the top end of the microfluidic chip (12), the bottom end of the first sampling tube (16) is limitingly connected with the liquid inlet (17), a first spring (26) is sleeved on the first support rod (14), and the two ends of the first spring (26) are fixedly connected with the first support rod (14) and the first support plate (15) respectively.

6. The portable device for well washing, sampling and heavy metal detecting of groundwater according to claim 5, characterized in that: The first sampling pipe (16) is slidably connected with a second sampling pipe (18), the top end of the second sampling pipe (18) extends out of the support frame (13) and is fixedly connected with a sampling groove (19), when the sampling groove (19) moves to below the storage bottle (2), the sampling groove (19) is in communication with the bottom end of the storage bottle (2), a second spring (27) is sleeved on the second sampling pipe (18), and two ends of the second spring (27) are fixedly connected with the bottom end of the sampling groove (19) and the top end of the support frame (13) respectively.

7. The portable device for well washing, sampling and heavy metal detecting of groundwater according to claim 6, characterized in that: The bottom end of the storage bottle (2) is provided with a drain port (20), the drain port (20) is slidably connected with a drain pipe (21), a plurality of through holes (22) are formed in the top end of the side wall of the drain pipe (21), when the bottom end of the drain pipe (21) is in contact with the second sampling pipe (18), the drain pipe (21) is in communication with the storage bottle (2) through the through holes (22).

8. The portable device for well washing, sampling and heavy metal detecting of groundwater according to claim 7, characterized in that: The top end of the drain pipe (21) extends into the storage bottle (2) and is fixedly connected with a second support plate (23), the second support plate (23) is fixedly connected with two second support rods (24), a support ring (25) is fixedly connected to the inner wall of the storage bottle (2), the second support rods (24) are slidably connected with the support ring (25), a third spring (28) is sleeved on the second support rods (24), and two ends of the third spring (28) are fixedly connected with the second support rods (24) and the support ring (25) respectively.

9. The portable device for well washing, sampling and heavy metal detecting of groundwater according to claim 6, characterized in that: The storage bottle (2) is fixedly connected with a knob (30) through a third support rod (29), and the top end of the knob (30) is in sliding contact with the bottom end of the sampling groove (19).

10. The portable device for washing, sampling and detecting heavy metals of groundwater according to claim 7, characterized in that: The cross section of the sampling groove (19) is an arc structure, and the length of the arc structure is greater than the diameter of the drain pipe (21).

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