A device for monitoring the spread of groundwater pollutants

Abstract

The utility model belongs to underground water monitoring technical field especially is a kind of underground water pollutant diffusion tracking monitoring device, including tracking monitoring unit, data transmission unit, lithium battery group and ground control terminal, the tracking monitoring unit includes buoyancy adjusting assembly, shell and four monitoring sensor groups, the buoyancy adjusting assembly is arranged in the outside of the shell, the front side detachably fixed connection of the shell has sealing cover. The utility model structure design is reasonable, by setting buoyancy adjusting assembly, drive assembly, GPS positioning module and four groups of monitoring sensor groups, the specific diffusion direction of pollutant can be detected, and the corresponding drive assembly is driven, so that shell can dynamically move along with the diffusion direction of pollutant, realize the real-time tracking of pollutant diffusion path, solve the problem that traditional fixed point monitoring cannot cover the whole process of pollution diffusion, improve the comprehensiveness and accuracy of monitoring, and the reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of groundwater monitoring technology, and in particular to a groundwater pollutant diffusion tracking and monitoring device. Background Technology

[0002] Groundwater, as a vital water resource, directly impacts ecological stability and human life and production. In recent years, groundwater pollution incidents have occurred frequently due to issues such as industrial wastewater leakage, agricultural non-point source pollution, and landfill leakage. To effectively control pollution spread and develop scientific remediation plans, real-time tracking and precise monitoring of the diffusion process of groundwater pollutants are necessary.

[0003] Most groundwater pollution monitoring devices in related technologies adopt fixed-point monitoring methods, which involve setting up fixed monitoring wells in suspected pollution areas and periodically collecting water samples for laboratory analysis. This method has obvious drawbacks: the monitoring points are relatively fixed, making it impossible to dynamically adjust the monitoring positions to follow the pollutant diffusion path, easily missing key diffusion nodes, and leading to errors in judging the pollution range and diffusion speed; moreover, the monitoring cycle is long, making it difficult to capture real-time changes in pollutant concentration and unable to provide timely warnings of pollution diffusion risks. Therefore, we propose a groundwater pollutant diffusion tracking and monitoring device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings mentioned above by proposing a groundwater pollutant diffusion tracking and monitoring device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A groundwater pollutant diffusion tracking and monitoring device includes a tracking and monitoring unit, a data transmission unit, a lithium battery pack, and a ground control terminal. The tracking and monitoring unit includes a buoyancy adjustment component, a housing, and four monitoring sensor groups. The buoyancy adjustment component is disposed outside the housing. A sealing cover is detachably and fixedly connected to the front side of the housing. The four monitoring sensor groups are respectively fixedly connected to the outside of the housing and the sealing cover. A drive component is disposed at the bottom of the buoyancy adjustment component. A partition is fixedly connected inside the housing. A sealing strip is fixedly connected to the rear side of the sealing cover. Four anti-corrosion screws are threadedly connected to the front side of the sealing cover. The sealing cover is fixedly connected to the front side of the housing by the four anti-corrosion screws.

[0006] As a preferred embodiment of this utility model, the monitoring sensor group includes a pollutant concentration sensor, a water temperature sensor, a pH sensor, a conductivity sensor, and a dissolved oxygen sensor arranged sequentially from top to bottom. The pollutant concentration sensor, water temperature sensor, pH sensor, conductivity sensor, and dissolved oxygen sensor are respectively fixedly connected to the outside of the housing and the sealing cover.

[0007] In a preferred embodiment of this utility model, the buoyancy adjustment assembly includes a cavity within a shell located above a partition, an air pump fixedly connected to the top of the shell, and four corrosion-resistant pipes and four connecting plates. The air pump is connected to the cavity, and an air inlet pipe is fixedly connected to the top of the air pump. A solenoid valve is installed on the air inlet pipe. The four corrosion-resistant pipes and four connecting plates are respectively fixedly connected to the outer sides of the shell and the sealing cover. All four corrosion-resistant pipes are connected to the cavity. An air bladder is fixedly connected to the outer end of each corrosion-resistant pipe. A floating plate is fixedly connected to the outer side of each connecting plate, and the bottom of the air bladder is fixedly connected to the top of the floating plate.

[0008] In a preferred embodiment of this invention, the drive assembly includes a sealed box with high thermal conductivity that is fixedly connected to the bottom of the floating plate. A drive motor is fixedly fitted inside the sealed box. A rotating shaft is fixedly connected to the output shaft of the drive motor, and a propeller is fixedly fitted on the outside of the rotating shaft.

[0009] As a preferred embodiment of this utility model, a sealing bearing is fixedly connected to the front side of the sealing box, the rotating shaft is fixedly sleeved inside the inner ring of the sealing bearing, and the sealing box and the floating plate are fixedly connected to the same fixed seat.

[0010] In a preferred embodiment of this invention, the data transmission unit includes a wireless communication module fixedly connected to the bottom of the partition, and a GPS positioning module and a data storage module fixedly connected to the inner wall of the bottom of the housing. The data storage module uses an SD card storage module, and the monitoring sensor group, the GPS positioning module, and the data storage module are all electrically connected to the wireless communication module.

[0011] As a preferred embodiment of this utility model, the lithium battery pack is fixedly connected to the bottom inner wall of the housing, and a charging port is provided on one side of the housing, with a waterproof gasket slidably sealed inside the charging port.

[0012] In a preferred embodiment of this invention, the ground control terminal includes a data receiving module paired with a wireless communication module, a processor, a touch screen display, and an early warning module. The data receiving module, the touch screen display, and the early warning module are all electrically connected to the processor, and the early warning module can be an audible and visual alarm.

[0013] In this invention, a groundwater pollutant diffusion tracking and monitoring device is described. The casing is slowly lowered into the groundwater environment at a monitoring well or borehole near the polluted area. A ground control terminal controls the opening of an air pump and a solenoid valve, allowing the air pump to draw air into the cavity, anti-corrosion pipe, and airbag. This adjusts the buoyancy of the airbag and floating plate, suspending the device at a preset monitoring depth. When releasing air, the solenoid valve is opened to vent the air, reducing the buoyancy of the airbag and floating plate, causing the casing to descend. Four sets of monitoring sensors monitor the groundwater, and by comparing the data from these sensors, the direction of pollutant diffusion is determined. Based on the diffusion direction, the corresponding drive component is activated, causing the drive motor to rotate the shaft and propeller, enabling the device to track the direction of pollutant diffusion. A GPS positioning module acquires the device's location information, and the data and location information are transmitted to the ground control terminal via a wireless communication module. Simultaneously, groundwater detection data and location information are sent to a data storage module for backup, preventing data loss due to poor signal strength. In this invention, a groundwater pollutant diffusion tracking and monitoring device is described. After the ground control terminal's data receiving module receives the data, the processor analyzes and processes it to generate a pollutant diffusion trajectory map and parameter change curves, which are displayed in real time on a touch screen. If the data exceeds a safety threshold, the early warning module issues an audible and visual warning signal. After the monitoring task is completed, the driving component in the ground control terminal controls the device to move in the opposite direction to the monitoring wellhead. At the same time, by controlling the buoyancy, the device floats to the monitoring wellhead for retrieval. Historical monitoring data and diffusion trajectory maps can be exported by the processor for subsequent pollution analysis and treatment plan formulation. This utility model has a reasonable structural design. By setting up a buoyancy adjustment component, a drive component, a GPS positioning module, and four sets of monitoring sensors, it can detect the specific direction of pollutant diffusion and drive the corresponding drive component, so that the shell can move dynamically with the direction of pollutant diffusion. This enables real-time tracking of the pollutant diffusion path, solves the problem that traditional fixed-point monitoring cannot cover the entire process of pollution diffusion, improves the comprehensiveness and accuracy of monitoring, and has high reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a groundwater pollutant diffusion tracking and monitoring device proposed in this utility model; Figure 2 This is a cross-sectional view of a groundwater pollutant diffusion tracking and monitoring device proposed in this utility model; Figure 3 for Figure 1 A schematic diagram of the structure of part A; Figure 4 for Figure 2A structural diagram of section B; Figure 5 This is a connection block diagram of a groundwater pollutant diffusion tracking and monitoring device proposed in this utility model.

[0015] In the diagram: 1. Shell; 2. Sealing cover; 3. Buoyancy adjustment assembly; 4. Drive assembly; 5. Monitoring sensor group; 6. Waterproof gasket; 7. Partition; 8. Wireless communication module; 9. Lithium battery pack; 10. GPS positioning module; 11. Data storage module; 12. Charging port; 13. Sealing strip; 14. Corrosion-resistant screw; 31. Air pump; 32. Cavity; 33. Air inlet pipe; 34. Solenoid valve; 35. Corrosion-resistant pipe; 36. Connecting plate; 37. Airbag; 38. Floating plate; 41. Fixing base; 42. Sealed box; 43. Propeller; 44. Shaft; 45. Sealed bearing. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figures 1-5 A groundwater pollutant diffusion tracking and monitoring device includes a tracking and monitoring unit, a data transmission unit, a lithium battery pack 9, and a ground control terminal. The tracking and monitoring unit includes a buoyancy adjustment component 3, a housing 1, and four monitoring sensor groups 5. The buoyancy adjustment component 3 is located outside the housing 1. A sealing cover 2 is detachably and fixedly connected to the front side of the housing 1. The four monitoring sensor groups 5 are respectively fixedly connected to the outside of the housing 1 and the sealing cover 2. A drive component 4 is located at the bottom of the buoyancy adjustment component 3. A partition 7 is fixedly connected inside the housing 1. A sealing strip 13 is fixedly connected to the rear side of the sealing cover 2. Four anti-corrosion screws 14 are threadedly connected to the front side of the sealing cover 2. The sealing cover 2 is fixedly connected to the front side of the housing 1 by the four anti-corrosion screws 14. The arrangement of the sealing cover 2, anti-corrosion screws 14, and sealing strip 13 not only facilitates the disassembly and assembly of the sealing cover 2, making it convenient to inspect and maintain the equipment inside the housing 1, but also seals the housing 1 to prevent water ingress.

[0018] Furthermore, the monitoring sensor group 5 includes, from top to bottom, a pollutant concentration sensor, a water temperature sensor, a pH sensor, a conductivity sensor, and a dissolved oxygen sensor. These sensors are fixedly connected to the outside of the housing 1 and the sealing cover 2, respectively. The pollutant concentration sensor can be selected according to the type of target pollutant (e.g., a volatile organic compound sensor can be used to monitor organic pollutants, and a heavy metal ion selective electrode sensor can be used to monitor heavy metals). Its detection probe extends outside the housing through a waterproof interface on the side wall of the housing, directly contacting the groundwater. The water temperature sensor, pH sensor, conductivity sensor, and dissolved oxygen sensor are all high-precision waterproof sensors. The signal output terminals of each sensor are electrically connected to the wireless communication module of the data transmission unit through a shielded wire to ensure stable data transmission and reduce interference.

[0019] Furthermore, refer to Figure 1 , Figure 2 and Figure 4 The buoyancy adjustment component 3 includes a cavity 32 located above the partition plate 7 within the housing 1, an air pump 31 fixedly connected to the top of the housing 1, and four anti-corrosion pipes 35 and four connecting plates 36. The air pump 31 is connected to the cavity 32, and an air inlet pipe 33 is fixedly connected to the top of the air pump 31. A solenoid valve 34 is installed on the air inlet pipe 33. The four anti-corrosion pipes 35 and the four connecting plates 36 are respectively fixedly connected to the outer side of the housing 1 and the sealing cover 2. All four anti-corrosion pipes 35 are connected to the cavity 32. An airbag 37 is fixedly connected to the outer end of the anti-corrosion pipe 35. A floating plate 38 is fixedly connected to the outer side of the connecting plate 36. The bottom of the airbag 37 is fixedly connected to the top of the floating plate 38.

[0020] The above scheme is adopted: the air pump 31 and the solenoid valve 34 are opened by the ground control terminal, so that the air pump 31 can draw air into the cavity 32, the anti-corrosion tube 35 and the air bag 37, so as to adjust the buoyancy of the air bag 37 and the floating plate 38, so that the device is suspended at the preset monitoring depth. When deflation occurs, the solenoid valve 34 is opened to release the air, so as to reduce the buoyancy of the air bag 37 and the floating plate 38, and cause the shell 1 to move down.

[0021] Furthermore, refer to Figure 1 , Figure 2 and Figure 4 The drive assembly 4 includes a sealed box 42 with high thermal conductivity that is fixedly connected to the bottom of the floating plate 38. A drive motor is fixedly installed inside the sealed box 42. A rotating shaft 44 is fixedly connected to the output shaft of the drive motor. A propeller 43 is fixedly installed on the outside of the rotating shaft 44.

[0022] The above scheme is adopted: groundwater can be monitored by four sets of monitoring sensors 5, and the direction of pollutant diffusion can be determined by comparing the data monitored by the four sets of monitoring sensors 5. Based on the direction of diffusion, the corresponding drive component 4 is activated, so that the drive motor (not shown in the figure, fixed in a sealed box 42 with high thermal conductivity) drives the rotating shaft 44 and the propeller 43 to rotate, so that the drive device can track the direction of pollutant diffusion.

[0023] Furthermore, a sealing bearing 45 is fixedly connected to the front side of the sealing box 42, and the rotating shaft 44 is fixedly sleeved in the inner ring of the sealing bearing 45. The sealing box 42 and the floating plate 38 are fixedly connected by the same fixed seat 41.

[0024] Furthermore, the data transmission unit includes a wireless communication module 8 fixedly connected to the bottom of the partition 7, and a GPS positioning module 10 and a data storage module 11 fixedly connected to the inner wall of the bottom of the housing 1. The data storage module 11 uses an SD card storage module. The monitoring sensor group 5, the GPS positioning module 10, and the data storage module 11 are all electrically connected to the wireless communication module 8. The GPS positioning module 10 acquires the device's location information. The four monitoring sensor groups 5 can monitor groundwater. The groundwater monitoring data and location information are sent to the ground control terminal through the wireless communication module 8. At the same time, the groundwater detection data and location information can be sent to the data storage module 11 for storage backup to avoid data loss due to poor signal.

[0025] Furthermore, the lithium battery pack 9 is fixedly connected to the bottom inner wall of the housing 1. A charging port 12 is provided on one side of the housing 1. A waterproof gasket 6 is provided in the sliding sealing sleeve inside the charging port 12, which can supply power to the electrical equipment on the housing 1 to make it work, and at the same time facilitate the charging of the lithium battery pack 9.

[0026] Furthermore, the ground control terminal includes a data receiving module paired with the wireless communication module 8, a processor, a touch screen display, and an early warning module. The data receiving module, touch screen display, and early warning module are all electrically connected to the processor. The early warning module can be an audible and visual alarm. After the data receiving module of the ground control terminal receives the data, the processor analyzes and processes it to generate a pollutant diffusion trajectory map and parameter change curve, which are displayed in real time on the touch screen display. If the data exceeds the safety threshold, the early warning module issues an audible and visual warning signal. Historical monitoring data and diffusion trajectory maps can also be exported through the processor for subsequent pollution analysis and treatment plan formulation.

[0027] In this invention, during use, a suitable target pollutant concentration sensor is selected based on information such as the groundwater depth and flow direction of the suspected contaminated area. The device is then assembled and debugged. The lithium battery pack 9 is fully charged through the charging port 12, and safety thresholds for each monitoring parameter are preset in the ground control terminal. At the monitoring well or borehole surrounding the contaminated area, the housing 1 is slowly placed into the groundwater environment. The air pump 31 and solenoid valve 34 are opened via the ground control terminal, allowing the air pump 31 to draw air into the cavity 32, anti-corrosion pipe 35, and airbag 37. This adjusts the buoyancy of the airbag 37 and the floating plate 38, suspending the device at the preset monitoring depth. When deflating, the solenoid valve 34 is opened to release air, thereby reducing the pressure on the airbag 37 and the floating plate 38. Buoyancy causes the shell 1 to move downwards. Based on the four sets of monitoring sensors 5, groundwater can be monitored. By comparing the data monitored by the four sets of monitoring sensors 5, the direction of pollutant diffusion can be determined. Based on the direction of diffusion, the corresponding drive component 4 is activated, so that the drive motor (not shown in the figure, fixed in a sealed box 42 with a high thermal conductivity) drives the rotating shaft 44 and the propeller 43 to rotate, so that the drive device can track the direction of pollutant diffusion. The GPS positioning module 10 obtains the device's location information. The data and location information are sent to the ground control terminal through the wireless communication module 8. At the same time, the groundwater detection data and location information can be sent to the data storage module 11 for storage backup to avoid data loss due to poor signal.

[0028] After receiving data, the data receiving module of the ground control terminal analyzes and processes the data to generate a pollutant diffusion trajectory map and parameter change curve, which are displayed in real time on a touch screen. If the data exceeds the safety threshold, the early warning module issues an audible and visual warning signal. After the monitoring task is completed, the drive component 4 in the ground control terminal control device moves it in the opposite direction to the monitoring wellhead. At the same time, by controlling the buoyancy, it floats to the monitoring wellhead for recovery. Historical monitoring data and diffusion trajectory maps can be exported by the processor for subsequent pollution analysis and treatment plan formulation.

Claims

1. A groundwater pollutant diffusion tracking and monitoring device, characterized in that, The system includes a tracking and monitoring unit, a data transmission unit, a lithium battery pack (9), and a ground control terminal. The tracking and monitoring unit includes a buoyancy adjustment component (3), a housing (1), and four monitoring sensor groups (5). The buoyancy adjustment component (3) is located outside the housing (1). A sealing cover (2) is detachably and fixedly connected to the front side of the housing (1). The four monitoring sensor groups (5) are respectively fixedly connected to the outer sides of the housing (1) and the sealing cover (2). A drive component (4) is provided at the bottom of the buoyancy adjustment component (3). A partition (7) is fixedly connected inside the housing (1). A sealing strip (13) is fixedly connected to the rear side of the sealing cover (2). Four anti-corrosion screws (14) are threadedly connected to the front side of the sealing cover (2). The sealing cover (2) is fixedly connected to the front side of the housing (1) by the four anti-corrosion screws (14).

2. The groundwater pollutant diffusion tracking and monitoring device according to claim 1, characterized in that, The monitoring sensor group (5) includes a pollutant concentration sensor, a water temperature sensor, a pH sensor, a conductivity sensor and a dissolved oxygen sensor arranged sequentially from top to bottom. The pollutant concentration sensor, water temperature sensor, pH sensor, conductivity sensor and dissolved oxygen sensor are respectively fixedly connected to the outside of the housing (1) and the sealing cover (2).

3. The groundwater pollutant diffusion tracking and monitoring device according to claim 1, characterized in that, The buoyancy adjustment assembly (3) includes a cavity (32) opened above the partition plate (7) in the housing (1), an air pump (31) fixedly connected to the top of the housing (1), and four anti-corrosion pipes (35) and four connecting plates (36). The air pump (31) is connected to the cavity (32). The top of the air pump (31) is fixedly connected to an air inlet pipe (33). An electromagnetic valve (34) is provided on the air inlet pipe (33). The four anti-corrosion pipes (35) and the four connecting plates (36) are respectively fixedly connected to the outer side of the housing (1) and the sealing cover (2). The four anti-corrosion pipes (35) are all connected to the cavity (32). The outer end of the anti-corrosion pipe (35) is fixedly connected to an airbag (37). The outer side of the connecting plate (36) is fixedly connected to a floating plate (38). The bottom of the airbag (37) is fixedly connected to the top of the floating plate (38).

4. The groundwater pollutant diffusion tracking and monitoring device according to claim 3, characterized in that, The drive assembly (4) includes a sealed box (42) with high thermal conductivity that is fixedly connected to the bottom of the floating plate (38). A drive motor is fixedly installed inside the sealed box (42). A rotating shaft (44) is fixedly connected to the output shaft of the drive motor. A propeller (43) is fixedly installed on the outside of the rotating shaft (44).

5. A groundwater pollutant diffusion tracking and monitoring device according to claim 4, characterized in that, A sealing bearing (45) is fixedly connected to the front side of the sealing box (42), and the rotating shaft (44) is fixedly sleeved in the inner ring of the sealing bearing (45). The sealing box (42) and the floating plate (38) are fixedly connected to the same fixed seat (41).

6. The groundwater pollutant diffusion tracking and monitoring device according to claim 1, characterized in that, The data transmission unit includes a wireless communication module (8) fixedly connected to the bottom of the partition (7), a GPS positioning module (10) and a data storage module (11) fixedly connected to the inner wall of the bottom of the housing (1). The data storage module (11) uses an SD card storage module. The monitoring sensor group (5), the GPS positioning module (10) and the data storage module (11) are all electrically connected to the wireless communication module (8).

7. The groundwater pollutant diffusion tracking and monitoring device according to claim 1, characterized in that, The lithium battery pack (9) is fixedly connected to the bottom inner wall of the housing (1). A charging port (12) is provided on one side of the housing (1). A waterproof gasket (6) is provided in the sliding sealing sleeve of the charging port (12).

8. A groundwater pollutant diffusion tracking and monitoring device according to claim 6, characterized in that, The ground control terminal includes a data receiving module paired with the wireless communication module (8), a processor, a touch screen and an early warning module. The data receiving module, the touch screen and the early warning module are all electrically connected to the processor. The early warning module can be an audible and visual alarm.

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