An experimental device for simulating migration of leakage pollutants in underground pipeline

Abstract

This invention discloses an experimental device for simulating the migration of pollutants from underground pipeline leakage. The device includes an experimental chamber with several pipes running through it. The left ends of these pipes are connected to a pollutant pipe, which in turn connects to a pollutant storage tank. A metering pump is installed in the middle of the pollutant pipe, and several leakage holes are opened at the lower ends of the pipes. A leakage adjustment mechanism is installed at the lower ends of the pipes corresponding to the positions of the leakage holes. This invention allows for precise control of the size of the leakage holes through the leakage adjustment mechanism, and, combined with a depth adjustment mechanism, allows for flexible changes in the pipe burial depth. It can simulate pipeline leakage scenarios with different leakage intensities and underground depths, thus enhancing experimental applicability. Through pollutant concentration sensors, soil moisture sensors, pH sensors, and temperature and humidity sensors, real-time data on pollutant migration, soil characteristics, and environmental parameters can be acquired, providing comprehensive data support for analyzing migration patterns.

Description

Technical Field

[0001] This utility model relates to the field of environmental pollution simulation experiments, specifically to a device for simulating the migration of pollutants from underground pipeline leakage. Background Technology

[0002] With the acceleration of urbanization, underground pipeline systems are becoming increasingly complex, including water supply pipelines, sewage pipelines, gas pipelines, and industrial waste transportation pipelines. Over long-term use, these pipelines are prone to leakage due to corrosion, aging, and construction defects. Pipeline leakage not only wastes resources but can also lead to pollutants leaking into the soil and groundwater, causing serious environmental pollution.

[0003] To study the migration patterns of pollutants in soil during underground pipeline leakage, corresponding simulation experimental devices are needed. Most devices cannot flexibly adjust the leakage rate and burial depth, making it difficult to simulate different actual operating conditions; some devices lack precise control of the experimental environment and have limited monitoring parameters, resulting in low accuracy of experimental data and a narrow research scope, failing to provide comprehensive and reliable technical support for practical pollution prevention and control. Therefore, those skilled in the art have provided an underground pipeline leakage pollutant migration simulation experimental device to address the problems mentioned in the background art. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an experimental device for simulating the migration of pollutants from underground pipeline leakage, including an experimental box. Several pipes are installed inside the experimental box. The left ends of the several pipes are connected to a pollutant pipe, which is connected to a pollutant storage tank. A metering pump is installed in the middle of the pollutant pipe. Several leakage holes are opened at the lower end of the pipe. A leakage adjustment mechanism is installed at the lower end of the pipe corresponding to the position of the leakage holes. A sealed door is installed at the rear of the experimental chamber, a drain pipe is installed at the bottom of the experimental chamber, a depth adjustment mechanism is installed at the bottom of the experimental chamber, a soil moisture sensor and a soil pH sensor are installed at the top of the depth adjustment mechanism, several pollutant concentration sensors are evenly installed on the inner wall of the experimental chamber near the pipe, a temperature sensor and a humidity sensor are installed on the upper part of the inner wall of the experimental chamber, a temperature controller, a humidity regulator and a pressure regulator are installed at the top of the experimental chamber, and a spray mechanism is installed on the upper part of the inner wall of the experimental chamber.

[0005] Preferably, the experimental chamber is made of transparent pressure-resistant acrylic sheet, and the pipes are made of transparent PVC material.

[0006] Preferably, the temperature controller includes a heater and a cooler, the humidity regulator includes a humidifier and a dehumidifier, and the air pressure regulator is connected to the experimental chamber.

[0007] Preferably, the leakage adjustment mechanism includes an arc-shaped plate and a ruler block. The arc-shaped plate is slidably fitted at the lower end of the pipe. Several adjustment holes are opened inside the arc-shaped plate. A connecting rod is installed at the right end of the arc-shaped plate, and the connecting rod passes through the experimental chamber to install the adjustment block.

[0008] Preferably, the adjusting block is internally threaded with an adjusting bolt, and the adjusting bolt is rotatably connected to the experimental chamber. The ruler block is located on the lower side of the adjusting block and is fixed to the side of the experimental chamber.

[0009] Preferably, the depth adjustment mechanism includes a lifting groove and a base plate. The lifting groove is located on the inner wall of the experimental chamber. A threaded rod is installed inside the lifting groove, and a threaded sleeve is fitted on the outer surface of the threaded rod. The base plate is slidably connected to the inner wall of the experimental chamber and is fixedly connected to the threaded sleeve. Several drainage holes are opened inside the base plate. A soil moisture sensor and a soil pH sensor are fixed on the upper end of the base plate.

[0010] Preferably, the spraying mechanism includes a spray pipe and spray heads. The spray pipe is fixed to the inner wall of the experimental chamber, and the spray pipe is connected to a pump body and a water source tank. Several spray heads are installed on the side of the spray pipe.

[0011] The technical effects and advantages of this utility model are as follows: This invention can precisely control the size of the leakage hole through the leakage adjustment mechanism, and can flexibly change the burial depth of the pipe by combining the depth adjustment mechanism. It can simulate pipe leakage scenarios with different leakage intensities and different underground depths, making it more applicable to experiments. Through pollutant concentration sensors, soil moisture sensors, pH sensors and temperature and humidity sensors, it can acquire pollutant migration, soil characteristics and environmental parameter data in real time, providing complete data support for analyzing migration patterns. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the structure of the experimental chamber in this application; Figure 3 This is a schematic diagram of the leakage adjustment mechanism of this application; In the picture: 1. Experimental chamber; 2. Piping; 3. Contaminant pipe; 4. Metering pump; 5. Leakage hole; 6. Leakage adjustment mechanism; 7. Arc plate; 8. Adjustment hole; 9. Connecting rod; 10. Adjusting block; 11. Adjusting bolt; 12. Ruler block; 13. Sealing door; 14. Drain pipe; 15. Lifting groove; 16. Threaded rod; 17. Threaded sleeve; 18. Base plate; 19. Drain hole; 20. Soil moisture sensor; 21. pH sensor; 22. Temperature controller; 23. Humidity regulator; 24. Air pressure regulator; 25. Temperature sensor; 26. Humidity sensor; 27. Pollutant concentration sensor; 28. Sprinkler system. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0014] like Figures 1-3As shown, this embodiment provides an experimental device for simulating the migration of pollutants from underground pipeline leakage, including an experimental chamber 1. The experimental chamber 1 is made of transparent pressure-resistant acrylic sheet. Several pipes 2 are installed inside the experimental chamber 1. The pipes 2 are made of transparent PVC material. The left ends of the pipes 2 are connected to a pollutant pipe 3, which is connected to a pollutant storage tank. A metering pump 4 is installed in the middle of the pollutant pipe 3. Several leakage holes 5 are opened at the lower end of the pipes 2. A leakage adjustment mechanism 6 is installed at the lower end of the pipes 2 corresponding to the leakage holes 5. The leakage adjustment mechanism 6 includes an arc plate 7 and a straight plate 8. Ruler block 12 and arc plate 7 are slidably fitted at the lower end of pipe 2. Several adjustment holes 8 are opened inside arc plate 7. A connecting rod 9 is installed at the right end of arc plate 7, and the connecting rod 9 passes through experimental chamber 1 to install adjustment block 10. Adjustment bolt 11 is threaded inside adjustment block 10, and adjustment bolt 11 is rotatably connected to experimental chamber 1. Ruler block 12 is set on the lower side of adjustment block 10 and is fixed to the side of experimental chamber 1. Sealing door 13 is set at the rear end of experimental chamber 1. Drain pipe 14 is set at the lower end of experimental chamber 1. Depth adjustment mechanism is set at the lower part of experimental chamber 1. Depth adjustment mechanism is set at the upper end. The soil moisture sensor 20 and soil pH sensor 21 are included. The depth adjustment mechanism includes a lifting trough 15 and a base plate 18. The lifting trough 15 is located on the inner wall of the experimental chamber 1. A threaded rod 16 is installed inside the lifting trough 15, and a threaded sleeve 17 is fitted on the outer surface of the threaded rod 16. The base plate 18 is slidably connected to the inner wall of the experimental chamber 1, and the threaded sleeve 17 is fixedly connected to the base plate 18. Several drainage holes 19 are opened inside the base plate 18. The soil moisture sensor 20 and soil pH sensor 21 are fixed to the upper end of the base plate 18. Several pollutant samples are evenly installed on the inner wall of the experimental chamber 1 near the pipe 2. A concentration sensor 27 is installed. A temperature sensor 25 and a humidity sensor 26 are installed on the upper part of the inner wall of the experimental chamber 1. A temperature controller 22, a humidity regulator 23, and a pressure regulator 24 are installed on the top of the experimental chamber 1. The temperature controller 22 includes a heater and a cooler. The humidity regulator 23 includes a humidifier and a dehumidifier. The pressure regulator 24 is connected to the experimental chamber 1. A spray mechanism 28 is installed on the upper part of the inner wall of the experimental chamber 1. The spray mechanism 28 includes a spray pipe and a spray head. The spray pipe is fixed to the inner wall of the experimental chamber 1. The spray pipe is connected to a pump body and a water source tank. Several spray heads are installed on the side of the spray pipe.

[0015] The working principle of this utility model is as follows: First, adjust the height of the base plate 18 according to the experimental depth requirements of pipe 2. Rotate the threaded rod 16 to drive the threaded sleeve 17 to rise and fall. The threaded sleeve 17 drives the base plate 18 to rise and fall, adjusting the distance between the base plate 18 and pipe 2, thereby adjusting the experimental depth of pipe 2. Adjust the size of the leakage hole 5 according to the leakage requirements of the experiment. Rotate the adjusting bolt 11 to drive the adjusting block 10 to move. The adjusting block 10 drives the arc plate 7 to move through the connecting rod 9. The arc plate 7 drives the adjusting hole 8 to move and misalign with the leakage hole 5, thereby controlling the size of the leakage hole 5. Observing the position of the adjusting block 10 on the ruler block 12 can quickly understand and control the position of the adjusting hole 8. Temperature controller 22 is used to regulate the internal temperature of experimental chamber 1, humidity regulator 23 is used to regulate the internal humidity of experimental chamber 1, and air pressure regulator 24 is used to regulate the internal air pressure of experimental chamber 1. Then, the sealed door 13 is opened to fill the bottom plate 18 inside the experimental chamber 1 with soil. The metering pump 4 is used to transport pollutants into several pipes 2. The pollutants seep into the soil through the seepage hole 5 and the regulating hole 8. The pollutant concentration in the soil is monitored by pollutant concentration sensor 27. Soil moisture content sensor 20 and soil pH value sensor 21 are used to monitor the soil moisture content and pH value. Temperature sensor 25 and humidity sensor 26 are used to monitor the internal temperature and humidity of experimental chamber 1.

[0016] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An experimental device for simulating the migration of pollutants from underground pipeline leakage, comprising an experimental chamber (1), characterized in that, The experimental chamber (1) has several pipes (2) running through it. The left ends of the several pipes (2) are connected to the pollutant pipe (3), and the pollutant pipe (3) is connected to the pollutant storage tank. A metering pump (4) is installed in the middle of the pollutant pipe (3). Several leakage holes (5) are opened at the lower end of the pipe (2). A leakage adjustment mechanism (6) is installed at the lower end of the pipe (2) corresponding to the position of the leakage hole (5). A sealed door (13) is set at the rear end of the experimental chamber (1), a drain pipe (14) is set at the lower end of the experimental chamber (1), a depth adjustment mechanism is set at the lower part of the experimental chamber (1), a soil moisture sensor (20) and a soil pH sensor (21) are set at the upper end of the depth adjustment mechanism, a number of pollutant concentration sensors (27) are evenly installed on the inner wall of the experimental chamber (1) near the pipe (2), a temperature sensor (25) and a humidity sensor (26) are installed on the upper part of the inner wall of the experimental chamber (1), a temperature controller (22), a humidity regulator (23) and a pressure regulator (24) are installed on the top of the inner wall of the experimental chamber (1), and a spraying mechanism (28) is installed on the upper part of the inner wall of the experimental chamber (1).

2. The experimental device for simulating the migration of pollutants from underground pipeline leakage according to claim 1, characterized in that, The experimental chamber (1) is made of transparent pressure-resistant acrylic sheet, and the pipe (2) is made of transparent PVC material.

3. The experimental device for simulating the migration of pollutants from underground pipeline leakage according to claim 1, characterized in that, The temperature controller (22) includes a heater and a cooler, the humidity regulator (23) includes a humidifier and a dehumidifier, and the pressure regulator (24) is connected to the experimental chamber (1).

4. The experimental device for simulating the migration of pollutants from underground pipeline leakage according to claim 1, characterized in that, The leakage adjustment mechanism (6) includes an arc plate (7) and a ruler block (12). The arc plate (7) is slidably fitted at the lower end of the pipe (2). Several adjustment holes (8) are opened inside the arc plate (7). A connecting rod (9) is installed at the right end of the arc plate (7), and the connecting rod (9) passes through the experimental box (1) to install the adjustment block (10).

5. The experimental device for simulating the migration of pollutants from underground pipeline leakage according to claim 4, characterized in that, The adjusting block (10) is internally threaded with an adjusting bolt (11), and the adjusting bolt (11) is rotatably connected to the experimental box (1). The ruler block (12) is set on the lower side of the adjusting block (10), and the ruler block (12) is fixed on the side of the experimental box (1).

6. The experimental device for simulating the migration of pollutants from underground pipeline leakage according to claim 1, characterized in that, The depth adjustment mechanism includes a lifting groove (15) and a base plate (18). The lifting groove (15) is located on the inner wall of the experimental chamber (1). A threaded rod (16) is installed inside the lifting groove (15). A threaded sleeve (17) is fitted on the outer surface of the threaded rod (16). The base plate (18) is slidably connected to the inner wall of the experimental chamber (1), and the threaded sleeve (17) is fixedly connected to the base plate (18). Several drainage holes (19) are opened inside the base plate (18). A soil moisture sensor (20) and a soil pH sensor (21) are fixed on the upper end of the base plate (18).

7. The experimental device for simulating the migration of pollutants from underground pipeline leakage according to claim 1, characterized in that, The spraying mechanism (28) includes a spray pipe and a spray head. The spray pipe is fixed to the inner wall of the experimental chamber (1). The spray pipe is connected to a pump body and a water source tank. Several spray heads are installed on the side of the spray pipe.

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