Simulation test device for phosphorus migration and transformation of underground water

Abstract

The utility model discloses a simulation test device for phosphorus migration and transformation of underground water, which relates to the technical field of water environment protection and comprises a seepage tank, a fixing plate is fixedly welded on the side edge of the seepage tank, and a rainfall simulation mechanism is mounted right above the seepage tank; the rainfall simulation mechanism comprises hollow pipes, a through pipe is installed between the two hollow pipes, and rainfall holes are formed in the periphery of the through pipe and used for falling of a water source. A water inlet hole is formed in one end of one hollow pipe and used for being communicated with a water source; according to the utility model, through the designed rainfall simulation mechanism, the rainfall process of underground water can be accurately simulated, so that the test process is closer to the real situation; through the design of a hollow pipe, a through pipe and a precipitation hole in the precipitation simulation mechanism, a water source can uniformly fall into a seepage tank, so that the seepage process of underground water in soil is simulated.

Description

Technical Field

[0001] This utility model relates to the field of water environmental protection technology, and in particular to a simulation test device for phosphorus migration and transformation in groundwater. Background Technology

[0002] In the field of groundwater science research, simulating groundwater precipitation processes and their environmental impacts is crucial. However, traditional simulation devices often suffer from low simulation accuracy, complex experimental processes, and high maintenance costs, making them difficult to meet current research needs.

[0003] Chinese patent CN113447400A discloses a simulation device and method for phosphorus migration and transformation in groundwater in riverine zones. The technical solution mainly consists of a water supply device, a seepage tank, and an artificial rainfall device. The water supply device includes a water storage column and a balancing water column. The seepage tank is divided into an inlet zone, an aquifer zone, and an outlet zone, which are set at intervals. The aquifer zone contains an aquifer and a perforated glass tube simulates a well connected to a peristaltic pump. Multiple measurement and sampling ports are set on the side wall of the aquifer zone. The outlet zone is equipped with an adjustable overflow pipe. The outlet zone is connected to a water storage tank with an aerator. The bottom of the inlet zone is connected to the balancing water column through a water pipe with a valve. The aerator is connected to the top of the inlet zone. The inlet pipe of the artificial rainfall device can control the rainfall intensity of each recharge source.

[0004] The simulation device and method for simulating phosphorus migration and transformation in groundwater in the riparian zone can achieve objective simulation of the riparian zone.

[0005] The interaction between groundwater and surface water, as well as the migration and transformation of phosphorus, facilitates teaching demonstrations for teachers on groundwater seepage and pollutant migration in riverside areas.

[0006] However, in simulating groundwater precipitation processes, it is often impossible to precisely control the rate and amount of precipitation, leading to significant discrepancies between the experimental process and real-world conditions. This not only affects the accuracy of the experiments but also limits the reliability of the research results.

[0007] Moreover, the assembly and disassembly process is cumbersome and complex, requiring a lot of time and effort. Once a component is damaged or needs to be replaced, the entire device often needs to be disassembled and repaired, which not only increases maintenance costs but also reduces experimental efficiency. To address this, we provide a simulation experimental device for phosphorus migration and transformation in groundwater. Utility Model Content

[0008] To address the shortcomings of existing technologies, this invention provides a simulation test device for phosphorus migration and transformation in groundwater, thus solving the problems mentioned in the background section.

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a simulation test device for phosphorus migration and transformation in groundwater, comprising: a seepage tank, a fixing plate fixedly welded to the side of the seepage tank, and a precipitation simulation mechanism installed directly above the seepage tank;

[0010] The precipitation simulation mechanism includes hollow tubes, with a connecting pipe installed between two hollow tubes. Precipitation holes are opened on the periphery of the connecting pipe for water to fall. One end of one of the hollow tubes has a water inlet for connecting to a water source.

[0011] The hollow tube and the through tube are connected by a splicing structure, which is used for subsequent individual replacement of the damaged hollow tube and through tube.

[0012] As a further technical solution of this utility model, the splicing structure includes a sleeve ring sleeved around the end of the hollow tube and a sleeve pipe that is connected through the outside of the hollow tube, and a connecting plate is fixedly welded between the two sleeve rings.

[0013] A plug-in assembly connects the connecting plate and the fixing plate.

[0014] As a further technical solution of this utility model, the plug-in assembly includes a vertical support plate fixedly installed on the lower end surface of the connecting plate and a plug-in through groove opened on the surface of the fixed plate. A limit ring is fixedly installed on the periphery of the vertical support plate to limit the excessive downward insertion of the vertical support plate.

[0015] A limit mechanism is connected between the fixed plate and the upright plate.

[0016] As a further technical solution of this utility model, the limiting mechanism includes a limiting insertion hole opened on the surface of the upright plate and a strip groove opened on the upper surface of the fixed plate. A sliding sleeve block is slidably connected to the inner wall of the strip groove, and an overlapping plate is fixedly connected to the upper surface of the sliding sleeve block. A limiting rod is fixedly connected to the overlapping plate relative to the surface of the upright plate, and the limiting rod is inserted into the inner wall of the limiting insertion hole.

[0017] A reciprocating component connects the strip groove and the sliding sleeve block.

[0018] As a further technical solution of this utility model, the reciprocating component includes a horizontal fixing rod fixedly connected between the two end walls of the strip groove, a spring sleeved around the horizontal fixing rod, and a sliding sleeve block slidably sleeved around the horizontal fixing rod.

[0019] As a further technical solution of this utility model, the end of the through pipe is inserted into the inner wall of the sleeve pipe, and the designed outer diameter of the through pipe is compatible with the designed inner diameter of the sleeve pipe.

[0020] As a further technical solution of this utility model, one end of the spring is fixedly connected to the end wall of the strip groove, and the other end of the spring is fixedly connected to one end surface of the sliding sleeve block.

[0021] This invention provides a simulation test device for phosphorus migration and transformation in groundwater, which has the following advantages compared with the prior art:

[0022] 1. This design presents a simulation experimental device for phosphorus migration and transformation in groundwater. Through the designed precipitation simulation mechanism, the precipitation process of groundwater can be accurately simulated, making the experimental process closer to the real situation. The design of the hollow tube, through pipe, and precipitation hole in the precipitation simulation mechanism allows the water source to fall evenly into the seepage channel, thereby simulating the seepage process of groundwater in the soil. This design helps to improve the accuracy and reliability of the experiment and provides strong support for the research on phosphorus migration and transformation in groundwater.

[0023] 2. This design presents a simulation experimental device for phosphorus migration and transformation in groundwater. Through its designed modular structure, including components such as connecting rings, connecting pipes, and connecting plates, the precipitation simulation mechanism can be easily assembled and disassembled. This design allows for individual replacement of damaged or necessitated components during testing, eliminating the need to replace the entire mechanism and reducing maintenance costs and time. Furthermore, the design of the plug-in components and reciprocating parts simplifies and expedites the installation and disassembly of the device, improving experimental efficiency. Attached Figure Description

[0024] Figure 1 A three-dimensional schematic diagram of a simulation experimental device for phosphorus migration and transformation in groundwater;

[0025] Figure 2 This is a schematic diagram of the connection structure between the seepage channel and the fixed plate in a simulation test device for phosphorus migration and transformation in groundwater.

[0026] Figure 3 This is a structural breakdown diagram of a precipitation simulation mechanism in a simulation test device for phosphorus migration and transformation in groundwater.

[0027] Figure 4 A simulation test device for phosphorus migration and transformation in groundwater Figure 2 Enlarged view of the structure at point A in the middle.

[0028] In the diagram: 1. Seepage channel; 2. Fixing plate; 3. Rainfall simulation mechanism; 31. Hollow pipe; 32. Through pipe; 33. Rainfall hole; 34. Water inlet hole; 4. Sleeve ring; 5. Connecting plate; 6. Sleeve pipe; 7. Vertical support plate; 8. Limiting ring; 9. Insertion slot; 10. Limiting insertion hole; 11. Strip groove; 12. Horizontal support rod; 13. Spring; 14. Sliding sleeve block; 15. Overlap plate; 16. Limiting insertion rod. Detailed Implementation

[0029] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-4 This invention provides a technical solution for a simulation test device for phosphorus migration and transformation in groundwater. The device mainly includes a seepage tank 1, which simulates the flow environment of groundwater. A fixing plate 2 is connected to the side of the seepage tank 1 by fixed welding to provide stability. A precipitation simulation mechanism 3 is installed directly above the seepage tank 1 to simulate the precipitation process. The precipitation simulation mechanism 3 consists of hollow tubes 31 and a connecting pipe 32, with two hollow tubes 31 connected by the connecting pipe 32. Precipitation holes 33 are provided around the periphery of the connecting pipe 32 to achieve uniform water drop. One end of one hollow tube 31 has a water inlet 34 for connecting to an external water source. Furthermore, a splicing structure is designed between the hollow tubes 31 and the connecting pipe 32 to facilitate the individual replacement of damaged parts when needed. This design ensures the continuity and accuracy of the experiment. The device successfully simulates the precipitation process and allows for rapid replacement of damaged parts.

[0031] like Figure 1-4 As shown, the splicing structure includes a sleeve ring 4 that fits around the end of the hollow tube 31 and a sleeve pipe 6 that runs through the periphery of the hollow tube 31. The two sleeve rings 4 are fixedly welded together by a connecting plate 5 to achieve a stable connection between the hollow tube 31 and the through pipe 32. In addition, a plug-in assembly is designed between the connecting plate 5 and the fixing plate 2 to further fix the splicing structure. The design of the splicing structure enables the hollow tube 31 and the through pipe 32 to be firmly connected together, while facilitating disassembly and replacement.

[0032] like Figure 1-4As shown, the plug-in assembly includes a support plate 7 fixedly mounted on the lower surface of the connecting plate 5 and a plug-in slot 9 formed on the surface of the fixing plate 2. A limit ring 8 is fixedly installed on the periphery of the support plate 7 to prevent the support plate 7 from being excessively inserted into the plug-in slot 9. In addition, a limit mechanism is connected between the fixing plate 2 and the support plate 7 for further securing the plug-in assembly. The design of the plug-in assembly allows the connecting plate 5 to be firmly fixed to the fixing plate 2, while the limit ring 8 and the limit mechanism provide additional safety.

[0033] like Figure 1-4 As shown, the limiting mechanism includes a limiting insertion hole 10 on the surface of the upright plate 7 and a strip groove 11 on the upper surface of the fixed plate 2. A sliding sleeve block 14 is slidably connected to the inner wall of the strip groove 11. An overlapping plate 15 is fixedly connected to the upper surface of the sliding sleeve block 14. A limiting rod 16 is fixedly connected to the overlapping plate 15 relative to the surface of the upright plate 7, and the limiting rod 16 is inserted into the inner wall of the limiting insertion hole 10. In addition, a reciprocating component is connected between the strip groove 11 and the sliding sleeve block 14 to control the sliding of the sliding sleeve block 14. The design of the limiting mechanism allows the upright plate 7 to be firmly fixed on the fixed plate 2, while the reciprocating component provides a convenient operating method.

[0034] like Figure 1-4 As shown, the reciprocating component includes a horizontal fixing rod 12 fixedly connected between the two end walls of the strip groove 11. A spring 13 is sleeved around the horizontal fixing rod 12. A sliding sleeve block 14 is slidably sleeved around the horizontal fixing rod 12. When it is necessary to fix the vertical fixing plate 7, the sliding sleeve block 14 can be manually slid to one side to insert the limiting insertion rod 16 into the limiting insertion hole 10. When it is necessary to disassemble, simply slide the sliding sleeve block 14 in the opposite direction to disengage the limiting insertion rod 16 from the limiting insertion hole 10. The design of the reciprocating component makes the insertion and removal of the limiting insertion rod 16 simple and quick.

[0035] like Figure 1-4 As shown, the end of the through pipe 32 is inserted into the inner wall of the sleeve pipe 6, and the designed outer diameter of the through pipe 32 is compatible with the designed inner diameter of the sleeve pipe 6. This design ensures a tight and stable connection between the through pipe 32 and the sleeve pipe 6. The connection between the through pipe 32 and the sleeve pipe 6 is firm and reliable, meeting the requirements of the test.

[0036] like Figure 1-4 As shown, one end of the spring 13 is fixedly connected to the end wall of the strip groove 11, and the other end is fixedly connected to one end surface of the sliding sleeve 14. This design enables the sliding sleeve 14 to automatically return to its initial position when it is not subjected to external force. The design of the spring 13 provides a reliable guarantee for the automatic reset of the sliding sleeve 14.

[0037] The working principle of this utility model is as follows: First, water enters the hollow pipe 31 through the inlet hole 34. The hollow pipe 31 serves as the main channel for the water source, guiding the water to the connecting pipe 32. The two hollow pipes 31 are connected by the connecting pipe 32. The connecting pipe 32 is evenly provided with dewatering holes 33 on its outer periphery. When the water flows through the connecting pipe 32, it drips evenly into the seepage groove 1 below through the dewatering holes 33, thereby simulating the groundwater precipitation process.

[0038] To enhance the modularity and maintainability of the device, a splicing structure is used to connect the hollow tube 31 and the through tube 32. The splicing structure mainly consists of a sleeve ring 4, a sleeve pipe 6, and a connecting plate 5. The sleeve ring 4 is sleeved on the outer periphery of the end of the hollow tube 31, and the sleeve pipe 6 is connected through the outer periphery of the hollow tube 31 and inserted into the end of the through tube 32. The two sleeve rings 4 are fixedly welded together by the connecting plate 5, thus forming a stable connection structure.

[0039] To fix the splicing structure above the seepage channel 1, an insertion assembly is designed between the connecting plate 5 and the fixing plate 2. The insertion assembly mainly consists of a vertical support plate 7, an insertion slot 9, and a limiting ring 8. The vertical support plate 7 is fixedly installed on the lower surface of the connecting plate 5, while the insertion slot 9 is formed on the surface of the fixing plate 2. When the vertical support plate 7 is inserted into the insertion slot 9, the limiting ring 8 will limit the vertical support plate 7 from being inserted too far down, ensuring the stability of the insertion process.

[0040] To further secure the plug-in assembly and prevent it from loosening or falling off during testing, a limiting mechanism was designed. The limiting mechanism mainly consists of a limiting hole 10, a strip groove 11, a sliding block 14, an overlapping plate 15, and a limiting rod 16. The limiting hole 10 is located on the surface of the upright plate 7, while the strip groove 11 is located on the upper surface of the fixed plate 2. The sliding block 14 slides along the inner wall of the strip groove 11, and the overlapping plate 15, fixedly connected to its upper surface, is fixedly connected to the limiting rod 16 relative to the surface of the upright plate 7. When it is necessary to secure the plug-in assembly, simply slide the sliding block 14 to one side, allowing the limiting rod 16 to be inserted into the limiting hole 10.

[0041] To simplify the insertion and removal process of the limiting rod 16, a reciprocating component was designed. The reciprocating component mainly consists of a horizontal fixing rod 12 and a spring 13. The horizontal fixing rod 12 is fixedly connected between the two end walls of the strip groove 11, and the spring 13 is sleeved on the periphery of the horizontal fixing rod 12 and fixedly connected to one end surface of the sliding sleeve block 14. When it is necessary to insert or remove the limiting rod 16, simply press or pull the sliding sleeve block 14 manually. The elastic action of the spring 13 will cause the sliding sleeve block 14 to automatically return to the initial position, thereby simplifying the operation process.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A simulation test device for phosphorus migration and transformation in groundwater, characterized by, The utility model relates to a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism.

2. The simulation test device for phosphorus migration and transformation in groundwater according to claim 1, characterized in that, The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism.

3. The simulation test device for phosphorus migration and transformation in groundwater according to claim 2, characterized in that, The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism.

4. The simulation test device for phosphorus migration and transformation in groundwater according to claim 3, characterized in that, The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism.

5. The simulation test device for phosphorus migration and transformation in groundwater according to claim 4, characterized in that, The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism.

6. The simulation test device for phosphorus migration and transformation in groundwater according to claim 2, characterized in that, The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism.

7. The simulation test device for phosphorus migration and transformation in groundwater according to claim 5, characterized in that, The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. The utility model discloses a kind of water infiltration tank and water infiltration simulation mechanism. 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