Soil pollutant migration and transformation simulation experiment device

Abstract

The invention discloses a soil pollutant migration and transformation simulation experiment device which structurally comprises a nozzle, a pipeline, a reciprocating pump, a soil column, a base and a sampling port, the nozzle and the reciprocating pump are mounted above the pipeline and are in clearance fit above the soil column, and the sampling port is connected to the outside of the soil column; a conversion assembly is arranged on the spray orifice plate, the conversion assembly is matched with the spray orifice plate in the body, when water flow is impacted and atomized into tiny liquid drops, the liquid drops will directionally surge to the spray orifice plate, the conversion assembly is pushed in advance to be opened and closed on the spray orifice plate in a reciprocating mode, and the direction and the size of water mist entering the spray orifice plate are changed. The release strength and the spraying range of the water mist can be conveniently adjusted, the water mist can be uniformly sprayed above a soil column, and the simulation experiment capability of the device on migration and transformation of soil pollutants is ensured.

Description

Technical Field

[0001] This invention relates to the field of transformation simulation experiments, and in particular, to a soil pollutant migration and transformation simulation experimental device. Background Technology

[0002] The soil unsaturated zone tracer experiment is an important method for verifying and studying the mathematical model and laws of solute migration and transformation in this area. In this study, the soil of the research site was used as the medium in a laboratory soil leaching device to simulate the unsaturated zone of the test site. A solution containing tracer was injected into the laboratory soil column. By detecting the concentration of tracer at different monitoring points and fitting it with relevant mathematical models, relevant parameters of soil and solute properties were obtained, and the migration and diffusion laws of solute in the soil unsaturated zone were analyzed. Under normal circumstances, a conical nozzle is used to maintain uniform spraying and ensure that the surface soil is not washed away, so as to facilitate the smooth conduct of the experiment. When the water flow from the pipe to the expansion chamber in the nozzle is transferred, it will first be dispersed with the support arm and then spread downward along the inner wall of the main body. This causes the water flow to be impacted and atomized into tiny droplets. When the droplets fall onto the bottom nozzle, they will be further differentiated, resulting in excessive spray spreading outward and flying above the soil column. It is difficult to penetrate the soil inside within a certain time, which affects the device's ability to simulate the migration and transformation of soil pollutants. Summary of the Invention

[0003] To address the above problems, the present invention provides a soil pollutant migration and transformation simulation experimental device, the structure of which includes a nozzle, a pipe, a reciprocating pump, a soil column, a base, and a sampling port. The nozzle and the reciprocating pump are installed above the pipe and are fitted with a clearance above the soil column. The sampling port is connected to the outside of the soil column. The nozzle includes a receiving arm, a connecting sleeve, an expansion chamber, a conversion component, a nozzle plate, and a body. The receiving arm is connected below the connecting sleeve and the expansion chamber is connected between them. The connecting sleeve is connected between the pipe and the body. The nozzle plate is connected to the port of the body. The conversion component is installed above the nozzle plate.

[0004] As a further improvement of the present invention, the conversion component includes a display panel, an arch frame, a rotating shaft, an opening and closing component, and a push handle. The display panel and the arch frame are connected, and an opening and closing component is installed between the display panel and the rotating shaft. A push handle is provided outside the rotating shaft and is connected to the middle of the nozzle plate.

[0005] As a further improvement of the present invention, the display plate and the arch frame are movably engaged above the nozzle plate, and can be opened and closed repeatedly to change the flow direction of the water within the body.

[0006] As a further improvement of the present invention, the opening and closing component includes a clamp, an arc plate, an adsorption belt, and a fixing frame. The clamp is connected above the adsorption belt, and the fixing frame and the arc plate are connected at its opening. The fixing frame is internally connected to the display plate, and the adsorption belt is rotatably fitted to the outside of the rotating shaft.

[0007] As a further improvement of the present invention, the clamp is slidably fitted above the nozzle plate by an arc plate and a display plate below, and is gap-fitted with the arch frame, so that when the structure opens and closes, it will push and pry the arch frames on both sides to open and close in the opposite direction.

[0008] As a further improvement of the present invention, the push handle includes a telescopic belt, a docking plate, side wings, a pressing structure, a clamp, and a push shovel. The telescopic belt is connected between the docking plate and the push shovel, and side wings are connected to both sides. The side wings and the clamp are movably engaged below the clamp, and the docking plate is slidably engaged above the arch frame.

[0009] As a further improvement of the present invention, the pressing structure includes a spacer ring, a neutral belt, a seat, a guide member, and a guide plate. The guide member is installed inside the spacer ring and is connected to the guide plate. The seat is connected to the telescopic belt, and the neutral belt is connected between the guide plates.

[0010] As a further improvement of the present invention, the pointing component includes a ramp, a sleeve, a frame, and a fork. The ramp is connected to the frame and is slidably fitted above the guide plate. The fork is connected below the frame and is connected inside the sleeve. The sleeve is connected to the inner side of the spacer ring. Beneficial effects

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention features a conversion component on the nozzle plate. This conversion component works in conjunction with the nozzle plate within the main body. When water is impacted and atomized into tiny droplets, it will flow directionally onto the nozzle plate. The conversion component is pre-pushable to reciprocate on the nozzle plate, changing the direction and size of the water mist entering the nozzle plate. This facilitates adjustment of the water mist release force and spray range, helping to evenly spray the water mist onto the soil column and ensuring the device's ability to simulate the migration and transformation of soil pollutants.

[0012] The present invention has an opening and closing component and a push handle on the conversion component. The opening and closing component and the push handle cooperate on the rotating shaft. When the water mist flows directionally to the nozzle plate, it will first spread outward along the rotating shaft to the opening and closing component and the arch frame. The arch frame will cooperate with the push handle and the opening and closing component to cross and overlap above the nozzle plate. They can mutually leverage each other to reciprocate and close inside the body. This will cause the water mist to flow directionally along the display plate and the arch frame towards the nozzle plate divided into four parts by the arch frame, thereby changing the release direction and force of the water mist.

[0013] This invention uses airflow impact to clamp the display panel, which bends downwards along its own creases and clamps it together. This allows the arc plate at the tip of the panel to swing synchronously and tilt and pull the push handles and arch frame on both sides, making it easier to open and close in the opposite direction.

[0014] Because the side wings and clamps are tilted, pressed, and pried by the clamps, the present invention can extend to the conical back of the arch frame, which helps the arch frame and the clamps to guide the water mist to flow slowly and release the spray plate within a certain limit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a soil pollutant migration and transformation simulation experimental device according to the present invention.

[0016] Figure 2 This is a schematic diagram of the internal planar structure of the nozzle of the present invention.

[0017] Figure 3 This is a top view of the conversion component of the present invention.

[0018] Figure 4 This is a schematic diagram of the bottom planar structure of the opening and closing component of the present invention.

[0019] Figure 5 This is a schematic diagram of the planar structure of the push handle of the present invention.

[0020] Figure 6 This is a schematic diagram of the planar structure of the pressing structure of the present invention.

[0021] Figure 7 This is a schematic diagram of the planar structure of the pointing element of the present invention.

[0022] In the diagram: Nozzle-3, Pipe-1, Reciprocating Pump-2, Soil Column-4, Base-6, Sampling Port-5, Support Arm-3a, Connecting Sleeve-3s, Expansion Chamber-3d, Conversion Component-3f, Spray Plate-3g, Body-3q, Display Plate-3f1, Rotating Shaft-3f4, Arch Frame-3f2, Opening / Closing Part-3f3, Push Handle-3f5, Arc Plate-f33, Clamp-f31, Fixing Frame-f32, Adsorption Belt-f34, Connecting Plate-f51, Pressing Structure-f53, Side Wing-f52, Telescopic Belt-f54, Clamp-f55, Push Shovel-f56, Spacer Ring-53l, Neutral Belt-53k, Embedded Seat-53j, Pointing Part-53h, Guide Plate-53g, Inclined Plate-h1, Sleeve-h3, Frame-h2, Fork Rod-h4. Implementation

[0023] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0024] like Figures 1-3As shown, this invention provides a soil pollutant migration and transformation simulation experimental device, the structure of which includes a nozzle 3, a pipe 1, a reciprocating pump 2, a soil column 4, a base 6, and a sampling port 5. The nozzle 3 and the reciprocating pump 2 are installed above the pipe 1 and are fitted with a clearance fit above the soil column 4. The sampling port 5 is fixedly connected to the outside of the soil column 4. The nozzle 3 includes a receiving arm 3a, a connecting sleeve 3s, an expansion chamber 3d, a conversion component 3f, a nozzle plate 3g, and a body 3q. The receiving arm 3a is hinged to the lower part of the connecting sleeve 3s, and the expansion chamber 3d is welded between them. The connecting sleeve 3s is fixedly connected to... A nozzle plate 3g is connected between pipe 1 and body 3q. A conversion assembly 3f is installed above the nozzle plate 3g. The conversion assembly 3f includes a display plate 3f1, an arch frame 3f2, a rotating shaft 3f4, an opening / closing component 3f3, and a push handle 3f5. The display plate 3f1 and arch frame 3f2 are fixedly connected, and the opening / closing component 3f3 is installed between them and the rotating shaft 3f4. The push handle 3f5 is provided on the outside of the rotating shaft 3f4 and welded to the middle of the nozzle plate 3g. The display plate 3f1 and arch frame 3f2 are movably engaged above the nozzle plate 3g, allowing for reciprocating opening and closing. To change the flow direction of water within the main body 3q, a conversion component 3f is installed on the nozzle plate 3g. This component 3f works in conjunction with the nozzle plate 3g within the main body 3q. When the water is impacted and atomized into tiny droplets, it will flow directionally onto the nozzle plate 3g. The conversion component 3f is pre-push-opening and closing on the nozzle plate 3g, changing the direction and size of the water mist entering the nozzle plate 3g. This facilitates adjustment of the water mist release intensity and spray range, helping to evenly spray the water mist onto the soil column and ensuring the device's ability to simulate the migration and transformation of soil pollutants. The device is equipped with an opening / closing component 3f3 and a push handle 3f5. The opening / closing component 3f3 and the push handle 3f5 cooperate with the rotating shaft 3f4. When the water mist flows directionally to the nozzle plate 3g, it will first spread outward along the rotating shaft 3f4 to the opening / closing component 3f3 and the arch frame 3f2. This allows the arch frame 3f2 to cooperate with the push handle 3f5 and the opening / closing component 3f3 to cross and overlap above the nozzle plate 3g. They can mutually leverage each other to reciprocate and retract inside the body 3q. This, in turn, mobilizes the water mist to flow directionally along the display plate 3f1 and the arch frame 3f2 towards the nozzle plate 3g, which is divided into four parts by the arch frame 3f2, thus changing the release direction and intensity of the water mist. Example

[0025] like Figures 4-7As shown, based on Embodiment 1, the present invention incorporates the following structural components in cooperation: the opening / closing member 3f3 includes a clamp f31, an arc plate f33, an adsorption belt f34, and a fixing frame f32. The clamp f31 is fixedly connected above the adsorption belt f34, and its opening is welded to the fixing frame f32 and the arc plate f33. The fixing frame f32 is internally sleeved and connected to the display plate 3f1. The adsorption belt f34 is rotatably fitted to the outside of the rotating shaft 3f4. The clamp f31 has a V-shaped structure, and its lower part is slidably fitted above the nozzle plate 3g via the arc plate f33 and the display plate 3f1. The push handle 3f5, in a clearance fit with the arch frame 3f2, allows its V-shaped structure to open and close simultaneously, pushing and prying the arch frames 3f2 on both sides to open and close in the opposite direction. The push handle 3f5 includes a telescopic belt f54, a docking plate f51, side wings f52, a pressing structure f53, a clamp f55, and a pusher f56. The telescopic belt f54 is fixedly connected between the docking plate f51 and the pusher f56, and the side wings f52 are hinged to both sides. The side wings f52 and the clamp f55 are movably engaged below the clamp f31. The docking plate f51 is slidably fitted above the arch frame 3f2. The pressing structure f53 includes a spacer ring 53l. The system comprises a neutral belt 53k, a seat 53j, a pointing element 53h, and a guide plate 53g. The pointing element 53h is installed inside the spacer ring 53l and is hingedly connected to the guide plate 53g. The seat 53j is fixedly connected to the telescopic belt f54. The neutral belt 53k is welded between the guide plates 53g. The pointing element 53h includes a ramp h1, a sleeve h3, a frame h2, and a fork h4. The ramp h1 is welded to the frame h2 and slidably fitted above the guide plate 53g. The fork h4 is fixedly connected below the frame h2 and is sleeved inside the sleeve h3. The sleeve h3 is hinged to the inside of the spacer ring 53l. When the clamp f31 is impacted by the airflow, it will bend downwards along its own crease and clamp the display plate 3f1, so that the arc plate f33 at its tip can swing synchronously and tilt and pull the push handle 3f5 and the arch frame 3f2 on both sides, which facilitates its opening and closing in the opposite direction. As the side wings f52 and the clamp f55 are tilted and pressed and pried by the clamp f31, they can extend to the conical back of the arch frame 3f2, which helps the arch frame 3f2 and the clamp f31 to guide the water mist to flow slowly and release the nozzle plate 3g within a certain limit.

[0026] The working principle of one of the soil pollutant migration and transformation simulation experimental devices in the above technical solution is explained below: During use, when water flows from the expansion chamber 3d through the pipe 1, to prevent it from expanding and being atomized into tiny droplets by the opening of the connecting arm 3a, causing the droplets to re-disintegrate upon landing on the bottom nozzle plate 3g, resulting in excessive spraying that flies outwards above the soil column 4 and fails to penetrate the soil within a certain time, a conversion component 3f is provided on the nozzle plate 3g. When the liquid is atomized into tiny droplets, it will first surge downwards and press down on the clamps f31 from top to bottom along the rotating shaft 3f4, causing them to bend and close together in the same direction as the adsorption belt f34. Then, with the help of the arc plate f33 at its tip, it will push the side wings f52 on both sides, causing the side wings f52 to extend and open synchronously with the center of the telescopic belt f54. This will cause the inserts 53j and spacers 53l inside the telescopic belt f54 to protrude upwards layer by layer and lift the guide plate 53g, which will push the fork h4 inside the sleeve h3. The inclined plate h1 inside the guide frame h2 can press the guide plate 53g at an angle, which helps the guide plate 53g work with the neutral belt 53k to drive the telescopic belt f54 to overlap on the back of the arch frame 3f2, better pressing the arch frame 3f2 onto the nozzle plate 3g to open. Then, through the connecting plate f51, the telescopic belt f54 is pulled and stretched section by section, which can gradually decompose and gently guide the surge of water mist. At the same time, it will support the side wings f52 to extend laterally to the bottom of the clamp f31, and maintain the V-shaped structure of the clamp f31 in multiple directions. It allows the display plate 3f1 to be held by the fixing frame f32 and elastically closed. It crosses the force with the arch frame 3f2 and opens and closes repeatedly, which can transmit the water mist in a directional and slow flow by undulating up and down, avoiding the water mist from being overly dispersed and flying away. It also changes the direction of water mist release, better adjusting the release intensity and spray range of water mist, which is conducive to the water mist being sprayed evenly above the soil column 4, ensuring the device's ability to simulate the migration and transformation of soil pollutants.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for simulating the migration and transformation of soil pollutants, characterized in that: Its structure includes a nozzle (3), a pipe (1), a reciprocating pump (2), a soil column (4), a base (6), and a sampling port (5). The nozzle (3) and the reciprocating pump (2) are installed above the pipe (1) and are fitted with a gap above the soil column (4). The soil column (4) is connected to the outside of the sampling port (5). The nozzle (3) includes a receiving arm (3a), a connecting sleeve (3s), an expansion chamber (3d), a conversion component (3f), a nozzle plate (3g), and a body (3q). The receiving arm (3a) is connected below the connecting sleeve (3s) and the expansion chamber (3d) is connected between them. The connecting sleeve (3s) is connected between the pipe (1) and the body (3q). The nozzle plate (3g) is connected to the port of the body (3q). The conversion component (3f) is installed above the nozzle plate (3g).

2. The soil pollutant migration and transformation simulation experiment device according to claim 1, characterized in that: The conversion assembly (3f) includes a display panel (3f1), an arch frame (3f2), a rotating shaft (3f4), an opening and closing component (3f3), and a push handle (3f5). The display panel (3f1) and the arch frame (3f2) are connected, and the opening and closing component (3f3) is installed between the display panel (3f1) and the rotating shaft (3f4). The rotating shaft (3f4) is provided with a push handle (3f5) on its outside and is connected to the middle of the nozzle plate (3g).

3. The experimental device for simulating the migration and transformation of soil pollutants according to claim 2, characterized in that: The display panel (3f1) and the arch frame (3f2) are movably engaged above the nozzle plate (3g).

4. The soil pollutant migration and transformation simulation experiment device according to claim 2, characterized in that: The opening and closing component (3f3) includes a clamp (f31), an arc plate (f33), an adsorption belt (f34), and a fixing frame (f32). The clamp (f31) is connected above the adsorption belt (f34), and the fixing frame (f32) and the arc plate (f33) are connected at its opening. The fixing frame (f32) is internally connected to the display plate (3f1), and the adsorption belt (f34) is rotatably fitted to the outside of the rotating shaft (3f4).

5. The soil pollutant migration and transformation simulation experiment device according to claim 4, characterized in that: The clamp (f31) is slidably fitted above the nozzle plate (3g) via the arc plate (f33) and the display plate (3f1) below, and is also in clearance fit with the arch frame (3f2).

6. The soil pollutant migration and transformation simulation experiment device according to claim 2, characterized in that: The push handle (3f5) includes a telescopic belt (f54), a docking plate (f51), side wings (f52), a pressing structure (f53), a clamp (f55), and a push shovel (f56). The telescopic belt (f54) is connected between the docking plate (f51) and the push shovel (f56), and side wings (f52) are connected to both sides. The side wings (f52) and the clamp (f55) are movably engaged below the clamp (f31), and the docking plate (f51) is slidably fitted above the arch frame (3f2).

7. The experimental device for simulating the migration and transformation of soil pollutants according to claim 6, characterized in that: The pressing structure (f53) includes a spacer ring (53l), a neutral belt (53k), a seat (53j), a pointing element (53h), and a guide plate (53g). The pointing element (53h) is installed inside the spacer ring (53l) and is connected to the guide plate (53g). The seat (53j) is connected to the telescopic belt (f54), and the neutral belt (53k) is connected between the guide plates (53g).

8. The soil pollutant migration and transformation simulation experimental device according to claim 7, characterized in that: The pointing piece (53h) comprises an inclined plate (h1), a sleeve (h3), a frame (h2), and a fork rod (h4). The inclined plate (h1) is connected with the frame (h2) and is in sliding fit above the guide plate (53g). The fork rod (h4) is connected below the frame (h2) and is connected inside the sleeve (h3). The sleeve (h3) is connected inside the partition ring (53l).

Images