Underground water remediation device suitable for in-production enterprises

Abstract

The utility model relates to an underground water remediation device suitable for an in-production enterprise. The underground water remediation device comprises a liquid supply unit, a chemical injection unit and a monitoring unit, the liquid supply unit is internally provided with repairing liquid medicine, and the liquid supply unit is connected with the medicine injection unit; the chemical injection unit comprises a plurality of horizontal chemical injection well units and a plurality of vertical chemical injection well units, each horizontal chemical injection well unit comprises a horizontal chemical outlet pipe arranged in an underground pollution area in the horizontal direction, and the arrangement depth of the horizontal chemical outlet pipes is matched with the distribution depth of underground pollution plumes; the vertical chemical injection well unit comprises vertical chemical outlet pipes which are vertically arranged in an underground polluted area, and the horizontal chemical outlet pipes and the vertical chemical outlet pipes are distributed in a three-dimensional staggered mode; the monitoring unit comprises a plurality of water quality monitoring sensors which are dispersedly arranged in an underground polluted area, and the water quality monitoring sensors are used for collecting water quality parameters such as pollutant concentration and pH value in underground water in real time, so that the remediation agent is comprehensively and uniformly distributed in the underground polluted area, and the contact area and the reaction sufficiency of the remediation agent and the underground water are greatly improved; the repairing effect is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of groundwater remediation technology, specifically a groundwater remediation device suitable for enterprises in operation. Background Technology

[0002] During production, manufacturing enterprises may contaminate groundwater due to raw material leaks, improper wastewater discharge, or other reasons, posing a threat to the ecological environment and human health. Furthermore, unlike soil, pollutants migrate through groundwater, causing pollution spills and incurring significant hidden remediation costs for enterprises. Conventional groundwater remediation technologies involve injecting remediation agents into contaminated areas, where the agents react chemically with the pollutants, transforming them into harmless substances and thus purifying the groundwater.

[0003] Existing groundwater remediation systems in operating enterprises mostly employ single vertical injection wells for chemical injection. Due to the limited diffusion range of chemicals in vertical wells, uneven distribution of chemicals is prone to occur, resulting in some contaminated areas not receiving sufficient chemicals, incomplete reaction between the chemicals and groundwater, and poor remediation effects. Furthermore, constructing multi-directional injection channels using traditional excavation methods can cause significant damage to the production facilities and sites of operating enterprises, severely impacting their normal production and operations. In addition, existing systems lack effective real-time monitoring mechanisms, making it impossible to promptly grasp the chemical diffusion and water quality changes, and hindering the adjustment of injection parameters based on actual remediation conditions, further affecting remediation efficiency and effectiveness.

[0004] Therefore, developing an intelligent groundwater remediation device for operating enterprises that can achieve uniform distribution of reagents, improve reaction adequacy, and minimize disruption to normal production has become an urgent technical problem to be solved. Utility Model Content

[0005] To overcome the problems existing in the prior art, the purpose of this utility model is to provide a groundwater remediation device suitable for enterprises in operation. This addresses the issues raised in the background section, where existing groundwater remediation injection systems for enterprises in operation often use single vertical injection wells. Due to the limited diffusion range of the chemicals in vertical injection wells, uneven distribution of chemicals, conflicts with enterprise production, lack of effective real-time monitoring mechanisms, and low levels of intelligence are common problems. This new device achieves comprehensive and uniform distribution of remediation agents in the underground contaminated area, significantly increasing the contact area and reaction sufficiency between the agents and groundwater, effectively improving the remediation effect. Furthermore, it allows groundwater remediation work to be carried out while ensuring normal enterprise production, and features real-time monitoring, high intelligence, and strong versatility.

[0006] To achieve the aforementioned objectives of this utility model, the technical solution provided by this utility model is as follows:

[0007] A groundwater remediation device suitable for operating enterprises includes a liquid supply unit, a chemical injection unit, and a monitoring unit;

[0008] The liquid supply unit contains a repair solution, and the liquid supply unit is connected to the injection unit;

[0009] The injection unit includes multiple horizontal injection well units and multiple vertical injection well units. The horizontal injection well unit includes a horizontal discharge pipe located in the underground contaminated area, and the depth of the horizontal discharge pipe is configured to match the distribution depth of the underground contaminated area. The vertical injection well unit includes a vertical discharge pipe located in the underground contaminated area, and the horizontal and vertical discharge pipes are distributed in a three-dimensional staggered manner.

[0010] The monitoring unit includes multiple water quality monitoring sensors distributed in the underground contaminated area, and the water quality monitoring sensors are configured to collect groundwater quality parameters in real time.

[0011] Furthermore, the monitoring unit also includes a data acquisition unit and a remote monitoring terminal. The signal input terminal of the data acquisition unit is connected to the signal output terminal of the water quality monitoring sensor, and the signal output terminal of the data acquisition unit is connected to the signal input terminal of the remote monitoring terminal.

[0012] Furthermore, the liquid supply unit includes a mixing tank, an infusion pipe, and a metering pump. The top of the mixing tank is provided with an injection port, and the injection port is also provided with a top cover. The injection port and the top cover are sealed together. The repair medicine is placed inside the mixing tank. One end of the infusion pipe is located inside the mixing tank and extends downward to the bottom of the mixing tank. The other end of the infusion pipe is connected to the input port provided on the metering pump.

[0013] Furthermore, the mixing tank is equipped with a stirring structure;

[0014] The stirring structure includes a drive motor, a stirring rod, and multiple stirring paddles. The drive motor is located at the top of the stirring tank. The stirring rod is configured to extend longitudinally through the interior of the stirring tank. The multiple stirring paddles are vertically connected to the stirring rod. One end of the stirring rod is rotatably connected to the inner wall at the bottom of the stirring tank via a bearing seat. The other end of the stirring rod is fixedly connected to the output shaft of the drive motor. The top of the stirring tank is provided with a through hole that allows the stirring rod to pass through.

[0015] Furthermore, a liquid level sensor is also provided inside the mixing tank. The liquid level sensor is located on the side wall of the mixing tank, and the signal output terminal of the liquid level sensor is connected to the signal input terminal of the data acquisition device.

[0016] Furthermore, the metering pump is provided with multiple output ports corresponding to multiple horizontal injection well units and multiple vertical injection well units respectively, and each of the horizontal injection well units or vertical injection well units is individually connected to the corresponding output port.

[0017] The horizontal drug outlet tube is connected to the corresponding output port by a first drug delivery tube, and the vertical drug outlet tube is connected to the corresponding output port by a second drug delivery tube.

[0018] Sealing joints are provided at the connection points between the horizontal drug outlet pipe and the first drug delivery pipe, and between the vertical drug outlet pipe and the second drug delivery pipe. The sealing joints are made of corrosion-resistant rubber.

[0019] The horizontal drug outlet pipe and the first drug delivery pipe are detachably and fixedly connected by a flange or threaded structure; the vertical drug outlet pipe and the second drug delivery pipe are detachably and fixedly connected by a flange or threaded structure.

[0020] The second drug delivery pipe includes a vertical drug delivery pipe section, which is adjacent to and connected to the vertical drug outlet pipe in the vertical direction. The vertical drug delivery pipe section is configured to extend vertically from the ground to the underground.

[0021] Each of the first and second drug delivery tubes is equipped with an independent control valve at its connection to the corresponding output port.

[0022] Furthermore, the control valve is equipped with a signal receiving and driving unit, which is configured to communicate with the signal output terminal of the remote monitoring terminal to receive control commands and drive the opening and closing of the control valve and the flow rate of the repair solution.

[0023] Furthermore, pressure sensors are also provided on the first and second drug delivery tubes, and the pressure sensors are located on the side of the control valve away from the output port.

[0024] The signal output terminal of the pressure sensor is connected to the signal input terminal of the data acquisition unit.

[0025] Furthermore, the extension direction of the horizontal drug outlet pipe is consistent with the horizontal distribution direction of the underground contaminated area, and its length is configured to be adapted to the horizontal span of the underground contaminated area.

[0026] Multiple horizontal dosing pipes are arranged in layers along the distribution depth of the underground contaminated area, with the horizontal dosing pipes in adjacent layers arranged in parallel or staggered arrangements.

[0027] The horizontal dispensing pipe is also connected to a discharge pipe at its end. Multiple discharge pipes are connected to a main discharge pipe, and the end of the main discharge pipe is connected to the inlet of a three-way valve. The first outlet of the three-way valve is connected to an exhaust pipe, and a control valve is provided on the exhaust pipe. The second outlet of the three-way valve is connected to one end of a first drain pipe, and the other end of the first drain pipe is connected to an extraction pump. A second drain pipe is connected to the outlet of the extraction pump, and the other end of the second drain pipe is connected to a designated drainage point. A water quality monitoring sensor is provided on the second drain pipe.

[0028] Furthermore, both the horizontal and vertical drug outlet pipes have multiple evenly distributed drug outlet holes spaced apart on their walls.

[0029] A filter screen is provided at the medicine outlet. The filter screen is fixedly connected to the inner wall of the corresponding horizontal or vertical medicine outlet pipe by means of snap-fit ​​or welding. The coverage area of ​​the filter screen is larger than the diameter of the medicine outlet.

[0030] Based on the above technical solution, compared with the prior art, the groundwater remediation device of this utility model, applicable to enterprises in production, has achieved the following technical advantages through practical application:

[0031] 1. This utility model enables comprehensive remediation of underground contaminated areas and allows groundwater remediation work to be carried out without affecting the normal production of enterprises. It has a high degree of intelligence and strong versatility.

[0032] 2. This utility model is equipped with horizontal injection well units and vertical injection well units, and the corresponding horizontal and vertical discharge pipes are distributed in a three-dimensional staggered manner, so as to realize the all-round and uniform distribution of the remediation agent in the underground contaminated area, greatly improve the contact area and reaction sufficiency of the agent with groundwater, and effectively improve the remediation effect.

[0033] 3. The horizontal injection well unit of this utility model is constructed using horizontal directional drilling technology, which eliminates the need for large-scale excavation and minimizes interference with the production facilities and sites of operating enterprises. It enables groundwater remediation work to be carried out while ensuring normal production of enterprises, thus solving the problem of conflict between traditional remediation methods and enterprise production.

[0034] 4. The water quality monitoring sensor of this utility model collects water quality parameters such as pollutant concentration and pH value in groundwater in real time. After the data acquisition device processes the collected signals, it transmits them to the remote monitoring terminal. Staff can monitor the remediation status in real time through the remote monitoring terminal, promptly identify problems and adjust the injection strategy, thereby improving the level of intelligence in the remediation.

[0035] 5. This utility model is equipped with a complete monitoring unit and pressure monitoring module. The combination of the two can monitor the groundwater quality, the diffusion of the agent, and the pressure of each injection pipeline in real time. The staff can accurately adjust the injection parameters according to the monitoring data, improve the intelligence and stability of the repair, reduce the repair cost, and avoid waste of resources.

[0036] 6. This utility model employs a metering pump and multiple independent control valves to achieve precise control of the agent delivery volume and the injection process of each horizontal and vertical injection unit, adapting to groundwater remediation needs of varying pollution levels and ranges. Furthermore, the metering pump and each control valve can be manually controlled by staff or remotely controlled and operated via communication, offering high flexibility and versatility. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a front view schematic diagram of the overall structure of a groundwater remediation device applicable to enterprises in operation, according to this utility model.

[0039] Figure 2 This is a cross-sectional schematic diagram of a horizontal or vertical discharge pipe of a groundwater remediation device applicable to production enterprises according to this utility model.

[0040] Figure 3 This is a schematic diagram of the inlet area at the connection point of the horizontal and vertical injection well units of a groundwater remediation device applicable to production enterprises, as per this utility model, with the metering pump.

[0041] Figure 4 This is a cross-sectional schematic diagram of the mixing tank structure of a groundwater remediation device applicable to production enterprises according to this utility model.

[0042] Figure label:

[0043] 10. Drug injection unit;

[0044] 101. Horizontal injection well unit; 1011. First drug delivery pipe; 1012. Horizontal drug outlet pipe; 1013. Discharge pipe; 1014. Main discharge pipe; 1015. Three-way valve; 1. Inlet; 2. First outlet; 3. Second outlet; 1016. Exhaust pipe; 1017. Drainage point; 1018. Extraction pump.

[0045] 102. Vertical injection well unit; 1021. Second drug delivery pipe; 10211. Vertical drug delivery pipe section; 1022. Vertical drug outlet pipe;

[0046] 103. Pressure sensor; 104. Control valve; 105. Discharge port; 106. Filter screen;

[0047] 20. Liquid supply unit; 201. Mixing tank; 2011. Liquid level sensor; 2012. Inlet; 2013. Drive motor; 2014. Stirring rod; 2015. Stirring paddle; 202. Metering pump; 2021. Output port; 203. Liquid delivery pipe;

[0048] 30. Monitoring unit; 301. Water quality monitoring sensor. Detailed Implementation

[0049] The present invention will be further described below with reference to specific embodiments, but these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that various improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

[0050] like Figure 1 As shown, this utility model provides a groundwater remediation device suitable for production enterprises, including a liquid supply unit 20, a chemical injection unit 10, and a monitoring unit 30; the liquid supply unit 20 contains remediation solution, and the liquid supply unit 20 is connected to the chemical injection unit 10; the chemical injection unit 10 includes multiple horizontal chemical injection well units 101 and multiple vertical chemical injection well units 102, the horizontal chemical injection well unit 101 includes a horizontal chemical outlet pipe 1012 located in the underground contaminated area, the setting depth of the horizontal chemical outlet pipe 1012 is configured to match the distribution depth of the underground contamination plume, that is, its extension direction is consistent with the horizontal distribution direction of the underground contamination area, and it is arranged in layers along the distribution depth of the underground contamination plume, with the horizontal chemical outlet pipes 1012 of adjacent layers arranged in parallel or staggered manner; the pipe diameter of the horizontal chemical outlet pipe 1012 is generally set to 80-150mm, and the length of the horizontal chemical outlet pipe 1012 is adapted to the horizontal span of the underground contaminated area. The vertical injection well unit 102 includes a vertical injection pipe 1022 located in the underground contaminated area. The horizontal injection pipe 1012 and the vertical injection pipe 1022 are distributed in a three-dimensional staggered manner. This three-dimensional staggered distribution design can realize the all-round and uniform distribution of the remediation agent in the underground contaminated area, greatly improve the contact area and reaction sufficiency of the agent with groundwater, and effectively improve the remediation effect.

[0051] The horizontal chemical injection well unit 101 is constructed in the underground contaminated area using horizontal directional drilling technology. This eliminates the need for large-scale excavation, effectively reducing interference with existing production facilities and sites. It is suitable for the remediation needs of operating enterprises and allows groundwater remediation work to be carried out while ensuring normal production, resolving the conflict between traditional remediation methods and enterprise production. The horizontal chemical injection well unit is precisely deployed according to the distribution depth of the underground contamination plume, and the chemical flow rate at the outlet is adjusted by the control valve 104, enabling precise and uniform distribution of the chemical in the horizontal direction.

[0052] The monitoring unit 30 includes multiple water quality monitoring sensors 301, which are distributed within the underground contaminated area. These sensors are located around both the vertical and horizontal chemical injection well units 102 and 101, respectively. The sensors 301 are configured to collect real-time water quality parameters such as pollutant concentration and pH value in the groundwater. The data acquisition unit processes the collected signals and transmits them to a remote monitoring terminal. Staff can use the remote monitoring terminal to monitor the remediation progress in real time, promptly identify problems, and adjust the chemical injection strategy, thereby improving the intelligence level of the remediation process.

[0053] The monitoring unit 30 also includes a data acquisition unit and a remote monitoring terminal. The signal input terminal of the data acquisition unit is connected to the signal output terminal of the water quality monitoring sensor 301, and the signal output terminal of the data acquisition unit is connected to the signal input terminal of the remote monitoring terminal wirelessly.

[0054] The liquid supply unit 20 includes a mixing tank 201, an infusion pipe 203, and a metering pump 202. The top of the mixing tank 201 is provided with an injection port 2012, and a top cover is also provided at the injection port 2012 to seal the mixing tank 201 and prevent the repair medicine from splashing during mixing. The repair medicine is placed inside the mixing tank 201. One end of the infusion pipe 203 is located inside the mixing tank 201 and extends downward to a distance above the bottom of the mixing tank 201. The infusion pipe 203 does not contact the bottom of the mixing tank 201. The mixing tank 201 is provided with an outlet that allows the infusion pipe 203 to pass through. The outlet is provided with a flange. The other end of the infusion pipe 203 is connected to an inlet provided on the metering pump 202. The inlet is provided with a flange. The mixing tank 201 is used to fully mix the raw materials of the remediation agent with the solvent to prepare a remediation solution that meets the requirements. The metering pump 202 can accurately control the delivery volume of the agent. The design of the metering pump 202 enables the device to accurately control the delivery volume of the remediation agent during use, adapting to the groundwater remediation needs of different pollution levels and ranges, and has strong versatility.

[0055] The metering pump 202 can be manually operated by staff to adjust the delivery rate of the repair agent, or it can be intelligently adjusted through communication control via a remote monitoring terminal, offering high flexibility and versatility.

[0056] The mixing tank 201 is equipped with a stirring structure; such as Figure 4 As shown, the stirring structure includes a drive motor 2013, a stirring rod 2014, and multiple stirring paddles 2015. The drive motor 2013 is located at the top of the mixing tank 201. The stirring rod 2014 is longitudinally inserted through the interior of the mixing tank 201. The multiple stirring paddles 2015 are vertically connected to the stirring rod 2014. One end of the stirring rod 2014 is rotatably connected to the inner wall of the bottom of the mixing tank 201 via a bearing seat, and the other end of the stirring rod 2014 is fixedly connected to the output shaft of the drive motor 2013. The top of the mixing tank 201 has a through hole that allows the stirring rod 2014 to pass through. The drive motor 2013 drives the stirring rod 2014 to rotate, which in turn drives the stirring paddles 2015 to rotate at high speed, which can accelerate the dissolution rate of the pharmaceutical raw materials and ensure uniform mixing of the pharmaceuticals.

[0057] A level sensor 2011 is also installed inside the mixing tank 201. The level sensor 2011 is located on the side wall of the mixing tank 201, and its signal output terminal is connected to the signal input terminal of the data acquisition unit. The level sensor 2011 is used to monitor the liquid level of the repair solution in the mixing tank 201, monitor the remaining amount of repair solution in the mixing tank 201 in real time, and promptly remind the staff to replenish the solution when the remaining amount is insufficient, so as to avoid affecting the repair progress due to the shortage of solution.

[0058] The metering pump 202 is provided with multiple output ports 2021 that correspond one-to-one with multiple horizontal injection well units 101 and multiple vertical injection well units 102. The input end of each horizontal injection well unit 101 or vertical injection well unit 102 is individually connected to the corresponding output port 2021.

[0059] A first drug delivery pipe 1011 connects the horizontal drug outlet pipe 1012 to the corresponding output port 2021, and a second drug delivery pipe 1021 connects the vertical drug outlet pipe 1022 to the corresponding output port 2021. A sealing joint is provided at the connection between the horizontal drug outlet pipe 1012 and the first drug delivery pipe 1011, and a sealing joint is also provided at the connection between the vertical drug outlet pipe 1022 and the second drug delivery pipe 1021. The sealing joints are made of corrosion-resistant rubber. The horizontal drug outlet pipe 1012 and the first drug delivery pipe 1011 are detachably and fixedly connected via a flange or threaded structure, and the vertical drug outlet pipe 1022 and the second drug delivery pipe 1021 are detachably and fixedly connected via a flange or threaded structure.

[0060] The second drug delivery pipe 1021 includes a vertical drug delivery pipe segment 10211, which includes multiple drug delivery pipe segments at different angles. The vertical drug delivery pipe segment 10211 is close to and connected to the vertical drug outlet pipe 1022 in the vertical direction. The vertical drug delivery pipe segment 10211 extends vertically from above the ground above the underground contaminated area to the underground contaminated area and is connected to the corresponding vertical drug outlet pipe 1022.

[0061] The installation of vertical injection well units 102 should not affect the normal production and operation of the enterprise. Generally, when the enterprise has the conditions, the vertical delivery pipe sections 10211 of each vertical injection well unit 102 are evenly arranged in a matrix above the contaminated area and connected to the corresponding vertical outlet pipes 1022 to assist the horizontal injection units in carrying out the remediation of the underground contaminated area. However, if the enterprise's plant does not have the conditions to install vertical delivery pipe sections 10211 and vertical outlet pipes 1022, vertical delivery pipe sections 10211 and vertical outlet pipes 1022 can be installed only around the contaminated area to block the outward spread of pollution without affecting the normal production and operation of the enterprise.

[0062] The horizontal dosing pipes 1012 of each horizontal injection well unit 101 extend in the same direction as the horizontal distribution of the underground contaminated area, and are arranged in layers along the distribution depth of the underground contamination plume. The horizontal dosing pipes 1012 of adjacent layers are arranged in parallel or staggered configurations, and their lengths are adapted to the size of the underground contaminated area. That is, the horizontal dosing pipes 1012 extend along the horizontal direction of the underground contaminated area, and the depth of the horizontal dosing pipes 1012 of the horizontal injection well unit 101 is adapted to the distribution depth of the underground contamination plume. The depths of different horizontal dosing pipes 1012 may be the same or different. Furthermore, different horizontal dosing pipes 1012 may be arranged in parallel or staggered configurations.

[0063] like Figure 3 As shown, each of the first delivery pipe 1011 and the second delivery pipe 1021 is equipped with an independent control valve 104 at its connection to the output port 2021. The combination of the metering pump 202 and the independent control valve 104 enables precise control of the drug delivery volume and the injection process of each horizontal and vertical injection well unit, adapting to groundwater remediation needs of varying pollution levels and ranges, thus offering strong versatility. In other embodiments, only one output port 2021 can be provided on the metering pump 202. In this case, the output port 2021 is connected to a main pipeline, which in turn connects to multiple first delivery pipes 1011 and multiple second delivery pipes 1021. An independent control valve 104 is provided at the connection between each first delivery pipe 1011 and each second delivery pipe 1021 and the main pipeline, enabling individual control of the injection process for each horizontal and vertical injection well unit.

[0064] In this embodiment, there are 3 vertical injection well units 102 and 2 horizontal injection well units 101. In practical applications, the number of horizontal injection well units 101 and vertical injection well units 102 is arranged according to the size of the underground contaminated area. The wider the underground contaminated area, the more vertical injection well units 102 are arranged, and the longer the extension length of the horizontal injection pipe 1012 is. The deeper the underground contaminated area, the more horizontal injection well units 101 are arranged, and the horizontal injection pipe 1012 is involved in the arrangement at multiple depths in the underground contaminated area, and the longer the extension length of the vertical injection pipe 1022 is.

[0065] The control valve 104 is equipped with a signal receiving and driving unit, which is configured to communicate with the signal output terminal of the remote monitoring terminal to receive control commands and drive the control valve 104 to open and close, as well as the flow rate of the repair solution. This allows staff to adjust the opening degree of each control valve 104 remotely by using the data acquisition device to collect various parameters, resulting in a high degree of intelligence.

[0066] Each first delivery pipe 1011 and each second delivery pipe 1021 is also equipped with a pressure sensor 103, which is located on the side of the control valve 104 away from the output port 2021. That is, each first delivery pipe 1011 and each second delivery pipe 1021 is equipped with an independent control valve 104 and a pressure sensor 103. The independent control valve 104 allows for individual control of the injection process of each vertical injection well unit 102 and horizontal injection well unit 101, facilitating the adjustment of injection parameters for different areas based on monitoring data. The pressure sensor 103 monitors the pipeline pressure during the injection process. When abnormal pipeline pressure occurs, the system can be stopped immediately for inspection to prevent pipeline rupture due to excessive pressure or to avoid affecting injection efficiency due to excessively low pressure, thus ensuring the stable operation of the groundwater remediation device. The control valve 104 and pressure sensor 103 are both located in the inlet area of ​​each vertical injection well unit 102 and horizontal injection well unit 101.

[0067] The signal output terminal of pressure sensor 103 is connected to the signal input terminal of data acquisition unit. Multiple pressure sensors 103 monitor the pressure of each first delivery pipe 1011 and each second delivery pipe 1021 of the injection unit 10, forming a complete pressure monitoring module. This module, in conjunction with the complete monitoring unit 30, can monitor groundwater quality, reagent diffusion, and the pressure of each pipeline in the injection unit 10 in real time. Based on the monitoring data, staff can precisely adjust injection parameters, improving the intelligence and stability of the remediation process, reducing remediation costs, and, in cases where the underground contamination area is small, partially closing control valves 104 can prevent resource waste while ensuring remediation effectiveness.

[0068] like Figure 2 As shown, both the horizontal dispensing pipe 1012 and the vertical dispensing pipe 1022 have multiple evenly distributed dispensing holes 105 perpendicular to their axial direction on their pipe walls. A filter screen 106 is installed at each dispensing hole 105, located inside the horizontal dispensing pipe 1012 and the vertical dispensing pipe 1022. The diameter of the dispensing holes 105 is generally set to 3-8 mm, and the spacing between adjacent dispensing holes 105 is set to 100-300 mm. The filter screen 106 is made of stainless steel with a mesh size of 80-120. The filter screen 106 is fixed to the inner wall of the horizontal dispensing pipe 1012 or the vertical dispensing pipe 1022 inside the corresponding dispensing hole 105 by snap-fitting or welding, and the coverage area of ​​the filter screen 106 is larger than the diameter range of the dispensing holes 105.

[0069] The horizontal drug outlet pipe 1012 is connected to a discharge pipe 1013 at the end of its stroke. Multiple discharge pipes 1013 are connected to a main discharge pipe 1014. The end of the main discharge pipe 1014 is connected to the inlet 1 of a three-way valve 1015. The first outlet 2 of the three-way valve 1015 is connected to an exhaust pipe 1016. A control valve is provided on the exhaust pipe 1016. The control valve is generally in the open state, that is, the exhaust pipe 1016 is generally in the open state. Opening the first outlet 2 of the three-way valve 1015 can release air and pressure during drug injection. The second outlet 3 of the three-way valve 1015 is connected to one end of the first drain pipe. The other end of the first drain pipe is connected to an extraction pump 1018. The outlet of the extraction pump 1018 is connected to a second drain pipe. The other end of the second drain pipe is connected to a designated drainage point 1017. A water quality monitoring sensor 301 is provided on the second drain pipe. During drug injection, the second outlet 3 of the three-way valve 1015 can be opened, and the extraction pump 1018 can be turned on to drain and depressurize, and the extracted water can be discharged into the designated drainage point. This method can also be used to extract groundwater and detect the groundwater through the water quality monitoring sensor 301 on the second drainage pipe. The detection here is a supplement to the multiple water quality monitoring sensors 301 that are scattered in the underground pollution area to achieve better monitoring results.

[0070] The working process of the groundwater remediation device applicable to operating enterprises in this embodiment is as follows: First, based on the actual situation such as the range of the underground contaminated area and the depth of the pollution plume distribution of the operating enterprise, a horizontal injection well unit 101 is constructed in the underground contaminated area using horizontal directional drilling technology. At the same time, vertical injection well units 102 are evenly distributed above the contaminated area, so that the two are distributed in a three-dimensional staggered manner. Then, the remediation agent raw materials and solvents are added into the mixing tank 201, and the drive motor 2013 is started to drive the stirring paddle 2015 to rotate, so that the agent is mixed evenly to obtain the prepared remediation solution. The prepared remediation solution is transported to each vertical injection well unit 102 and horizontal injection well unit 101 through the pipeline by the metering pump 202. The control valves 104 on each branch delivery pipeline are opened, and the remediation solution is injected into the underground contaminated area through the outlet holes 105 of the vertical outlet pipe 1022 and the horizontal outlet pipe 1012.

[0071] During the injection process, the water quality monitoring sensor 301 collects the water quality parameters of the groundwater in real time, and the pressure sensor 103 monitors the pipeline pressure of the first delivery pipe 1011 and the second delivery pipe 1021 in real time. The data acquisition device transmits the collected parameters to the remote monitoring terminal. The staff adjusts the delivery volume of the metering pump 202 and the opening of each control valve 104 according to the monitoring data. The adjustment can be made manually or remotely via communication control to ensure that the agent is evenly diffused and fully reacts with the groundwater. The liquid level sensor 2011 monitors the remaining agent in the mixing tank 201 in real time and promptly reminds the staff to replenish the agent when the remaining amount is insufficient.

[0072] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art can make non-inventive modifications to this embodiment as needed, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. An underground water remediation device suitable for use in an industrial plant, characterized in that, The application relates to a liquid supply unit (20), a medicine injection unit (10) and a monitoring unit (30). The liquid supply unit (20) is internally provided with a repairing liquid, and is connected with the medicine injection unit (10). The medicine injection unit (10) comprises a plurality of horizontal medicine injection well units (101) and a plurality of vertical medicine injection well units (102), the horizontal medicine injection well unit (101) comprises a horizontal medicine outlet pipe (1012) arranged in a horizontal direction in a underground pollution area, the setting depth of the horizontal medicine outlet pipe (1012) is configured to be matched with the distribution depth of the underground pollution area; the vertical medicine injection well unit (102) comprises a vertical medicine outlet pipe (1022) arranged in a vertical direction in the underground pollution area, and the horizontal medicine outlet pipe (1012) and the vertical medicine outlet pipe (1022) are arranged in a three-dimensional staggered mode. The monitoring unit (30) comprises a plurality of water quality monitoring sensors (301) which are arranged in the underground pollution area in a scattered mode and are configured to collect water quality parameters of underground water in real time.

2. The groundwater remediation device suitable for use in a production plant according to claim 1, characterized in that, The monitoring unit (30) further comprises a data collector and a remote monitoring terminal, a signal output end of the data collector is communicatively connected with a signal input end of the water quality monitoring sensor (301), and a signal output end of the data collector is communicatively connected with a signal input end of the remote monitoring terminal.

3. The groundwater remediation device suitable for use in a production enterprise according to claim 2, characterized by The liquid supply unit (20) comprises a stirring tank (201), a liquid conveying pipe (203) and a metering pump (202), a filling port (2012) is arranged at the top of the stirring tank (201), a top cover is further arranged on the filling port (2012), the filling port (2012) is sealingly connected with the top cover, the repairing liquid is arranged in the stirring tank (201), one end of the liquid conveying pipe (203) is arranged in the stirring tank (201) and extends downward to above the bottom of the stirring tank (201), and the other end of the liquid conveying pipe (203) is connected with an input port arranged on the metering pump (202).

4. The groundwater remediation device suitable for use in a production plant according to claim 3, characterized in that, The stirring tank (201) is provided with a stirring structure; The stirring structure comprises a driving motor (2013), a stirring rod (2014) and a plurality of stirring paddles (2015), the driving motor (2013) is arranged at the top of the stirring tank (201), the stirring rod (2014) is configured to longitudinally penetrate the inside of the stirring tank (201), the plurality of stirring paddles (2015) are vertically connected to the stirring rod (2014), one end of the stirring rod (2014) is rotatably connected to the inner wall of the bottom of the stirring tank (201) through a bearing seat, the other end of the stirring rod (2014) is fixedly connected with the output shaft of the driving motor (2013), and the top of the stirring tank (201) is provided with a through hole allowing the stirring rod (2014) to pass through.

5. The groundwater remediation device suitable for use in a production facility according to claim 3, wherein The stirring tank (201) is further provided with a liquid level sensor (2011), the liquid level sensor (2011) is arranged on the side wall of the stirring tank (201), and a signal output end of the liquid level sensor (2011) is communicatively connected with a signal input end of the data collector.

6. The groundwater remediation device suitable for use in a production plant according to claim 3, characterized in that, The metering pump (202) is provided with a plurality of output ports (2021) corresponding to a plurality of horizontal injection well units (101) and a plurality of vertical injection well units (102) respectively, each of the horizontal injection well unit (101) or the vertical injection well unit (102) is individually connected with the corresponding output port (2021); The horizontal medicine outlet pipe (1012) and the corresponding output port (2021) are communicated with the first medicine conveying pipe (1011), and the vertical medicine outlet pipe (1022) and the corresponding output port (2021) are communicated with the second medicine conveying pipe (1021); The connecting part between the horizontal medicine outlet pipe (1012) and the first medicine conveying pipe (1011) and the connecting part between the vertical medicine outlet pipe (1022) and the second medicine conveying pipe (1021) are provided with sealing joints, and the material of the sealing joint is corrosion-resistant rubber material; The horizontal medicine outlet pipe (1012) and the first medicine conveying pipe (1011) are detachably fixedly connected through a flange or a threaded structure, and the vertical medicine outlet pipe (1022) and the second medicine conveying pipe (1021) are detachably fixedly connected through a flange or a threaded structure; The second medicine conveying pipe (1021) comprises a vertical medicine conveying pipe section (10211), the vertical medicine conveying pipe section (10211) is close to and communicated with the vertical medicine outlet pipe (1022) in the vertical direction, and the vertical medicine conveying pipe section (10211) is configured to extend from the ground to the underground in the vertical direction; The connecting part between each of the first medicine conveying pipe (1011) and the second medicine conveying pipe (1021) and the corresponding output port (2021) is provided with an independent control valve (104).

7. An in-situ groundwater remediation device as defined in claim 6, wherein The control valve (104) is provided with a signal receiving and driving unit, and the signal receiving and driving unit is configured to be communicatively connected with the signal output end of the remote monitoring terminal to receive the control instruction and drive the opening, closing and repair of the control valve (104) and the flow size of the medicine liquid.

8. The groundwater remediation device suitable for use in a production enterprise according to claim 6, characterized by The first medicine conveying pipe (1011) and the second medicine conveying pipe (1021) are further provided with a pressure sensor (103), and the pressure sensor (103) is arranged on the side of the control valve (104) away from the output port (2021); The signal output end of the pressure sensor (103) is communicatively connected with the signal input end of the data collector.

9. The groundwater remediation device of claim 1, wherein, The extension direction of the horizontal medicine outlet pipe (1012) is consistent with the horizontal distribution direction of the underground contaminated area, and the length thereof is configured to be adaptively set according to the horizontal span of the underground contaminated area; A plurality of the horizontal medicine outlet pipes (1012) are arranged in layers along the distribution depth of the underground contaminated area, and the horizontal medicine outlet pipes (1012) of adjacent layers are arranged in parallel or staggered. The end of the horizontal medicine outlet pipe (1012) is also connected with an exhaust pipe (1013), a plurality of the exhaust pipes (1013) are communicated with an exhaust main pipe (1014), the end of the exhaust main pipe (1014) is communicated with the inlet (1) of a three-way valve (1015); the first outlet (2) of the three-way valve (1015) is communicated with an exhaust pipe (1016), the exhaust pipe (1016) is provided with a control valve; the second outlet (3) of the three-way valve (1015) is communicated with one end of a first drain pipe, the other end of the first drain pipe is connected with an extraction pump (1018), the outlet of the extraction pump (1018) is connected with a second drain pipe, the other end of the second drain pipe is connected to a designated drain point (1017), the second drain pipe is provided with a water quality monitoring sensor (301).

10. The groundwater remediation device suitable for use in a production facility according to claim 1, wherein, The pipe wall of the horizontal medicine outlet pipe (1012) and the vertical medicine outlet pipe (1022) is provided with a plurality of uniformly distributed medicine outlet holes (105) at intervals; The medicine outlet hole (105) is provided with a filter screen (106), the filter screen (106) is fixedly connected with the inner wall of the corresponding horizontal medicine outlet pipe (1012) or vertical medicine outlet pipe (1022) by buckling or welding, and the coverage range of the filter screen (106) is greater than the hole diameter of the medicine outlet hole (105).

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