Experimental device for simulating groundwater pollution migration

Abstract

The utility model relates to the technical field of groundwater pollution treatment, and discloses an experimental device for simulating groundwater pollution migration, which comprises a main board and a box body, the box body is fixedly mounted on the upper surface of the main board, a pipeline is fixedly mounted at the center of the surface of the left end of the box body, and a ball valve is movably mounted in the pipeline. A rotating rod is fixedly installed on the upper portion of the ball valve, a rotating handle is fixedly installed on the top face of the rotating rod, a fixing bolt is fixedly installed on the top face of the rotating handle and fixedly connected with the rotating rod, and a screw groove is formed in the left end of the pipeline. The device is simple in structure and convenient to operate, and has good use value.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater pollution control, and specifically relates to an experimental device for simulating the migration of groundwater pollution. Background Technique

[0002] Groundwater pollution mainly refers to the phenomenon that the chemical composition, physical properties and biological characteristics of groundwater are changed by human activities, resulting in a decline in quality. The strata below the surface are complex, and the flow of groundwater is extremely slow. Therefore, groundwater pollution has the characteristics of slow process, difficult to detect and difficult to control. Once groundwater is polluted, even if the pollution source is completely eliminated, it will take more than ten years, or even decades, for the water quality to recover. As for the artificial renewal of the underground aquifer, the problem is even more complicated. Groundwater pollution is a phenomenon of deterioration of underground water quality caused by human factors. The main reasons for groundwater pollution are as follows: industrial wastewater is directly discharged into the ground, polluted surface water seeps into the underground aquifer, human and livestock feces or water polluted by excessive use of pesticides seep into the ground, etc. The result of pollution is that the content of harmful components such as phenol, chromium, mercury, arsenic, radioactive substances, bacteria, and organic substances in groundwater increases. Polluted groundwater is harmful to human health and industrial and agricultural production. There are some obvious differences between groundwater pollution and surface water pollution: since pollutants enter the aquifer and move relatively slowly in the aquifer, pollution often occurs gradually. Without special monitoring, it is difficult to detect in time; after groundwater pollution is discovered, it is not as easy to determine the pollution source as surface water. More importantly, groundwater pollution is not easy to eliminate. After the pollution source is removed, surface water can be purified in a relatively short period of time; while for groundwater, even if the pollution source is removed, the pollutants that have entered the aquifer will still have an adverse impact for a long time.

[0003] The application number is 202020434190.9, which discloses an experimental device for simulating the migration of coastal groundwater pollution, including a main box body, a fresh water system and a salt water system. A vertically arranged first permeable baffle and a second permeable baffle are fixedly arranged in the main box body. The first permeable baffle and the second permeable baffle are arranged at intervals to divide the inner cavity of the main box body into a first chamber, a second chamber and a third chamber arranged in sequence. The second chamber is filled with a porous medium, and an inclined slope is arranged at one end of the porous medium close to the third chamber; the fresh water system is communicated with the first chamber, the salt water system is communicated with the third chamber, and a pollution source input box is arranged at the top of the main box body. The beneficial effect of the utility model is that through simulation experiments, the migration process of pollutants in the coastal unconfined aquifer under different density conditions is experimentally studied through the flow of the porous medium, and the experimental results can also be used to verify mathematical models and guide on-site monitoring.

[0004] One experimental device for simulating the migration of coastal groundwater pollution disclosed in the above-mentioned document has the following defects: When this experimental device for simulating the migration of coastal groundwater pollution is in use, it does not take into account that the density difference between the pollution plume of groundwater pollution and the surrounding groundwater may cause instability in the migration of the pollution plume, which may lead to deviation in the accuracy of the experiment.

[0005] It can be seen from this that the existing experimental device for simulating the migration of coastal groundwater pollution does not take into account the groundwater migration law and hydraulic gradient at the pollution site, and it is necessary to improve the existing deficiencies to provide an experimental device for simulating the migration of groundwater pollution. Utility Model Content

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0007] The present utility model is an experimental device for simulating the migration of groundwater pollution, including a main board and a box body. It is characterized in that: the box body is fixedly installed on the upper surface of the main board, the center of the left end surface of the box body is fixedly installed with a pipeline, a ball valve is movably installed inside the pipeline, a rotating rod is fixedly installed on the upper part of the ball valve, a rotating handle is fixedly installed on the top surface of the rotating rod, a fixing bolt is fixedly installed on the top surface of the rotating handle, the fixing bolt is fixedly connected with the rotating rod, and a screw groove exists inside the left end of the pipeline.

[0008] Furthermore, fixing clamping plates are fixedly installed on the outer wall of the box body. The number of the fixing clamping plates is two, which are respectively fixedly installed on the front and back sides of the box body. Fixing support rods are fixedly installed on the surfaces of the two fixing clamping plates. The number of the fixing support rods is two, which are respectively fixedly installed on the surfaces of the two fixing clamping plates. A battery is fixedly installed in the middle part between the two fixing support rods, and a temperature control lamp is fixedly installed on the bottom surface of the battery.

[0009] Furthermore, support vertical rods are fixedly installed on the bottom surface of the main board. The number of the support vertical rods is four, which are respectively fixedly installed at the four corners of the bottom surface of the main board. Bottom cushion blocks are fixedly installed on the bottom surfaces of the four support vertical rods. The bottom cushion blocks are made of rubber and have the functions of shock absorption and anti-slip.

[0010] Furthermore, a water inlet tank exists at the left end inside the box body, a first water drain port exists inside the water inlet tank, the first water drain port is used in cooperation with a first water drain port cover plate. A test tank exists in the middle part inside the box body, and a water outlet tank exists at the right end inside the box body. A second water drain port exists inside the water outlet tank, and the second water drain port is used in cooperation with a second water drain port cover plate.

[0011] Further, there is a water inlet tank at the left end inside the box body. A first sealing cover plate is fixedly installed on the top surface of the water inlet tank. There is a water outlet tank at the right end of the box body. A second sealing cover plate is fixedly installed on the top surface of the water outlet tank.

[0012] Further, a water inlet filter is fixedly installed inside the water inlet tank. There is a water inlet inside the water inlet filter. Reinforcing ribs are fixedly installed at the bottom of the water inlet filter. The number of the reinforcing ribs is two, and they are respectively fixedly installed at the bottoms of the water inlet filter and the water outlet filter.

[0013] Further, a water outlet filter is fixedly installed inside the water outlet tank. There is a water outlet on the body of the water outlet filter. The water outlet is 0.5 cm lower than the water inlet.

[0014] The utility model has the following beneficial effects:

[0015] (1) By setting the height difference between the water inlet and the water outlet of the utility model to be controllable within 0.5 cm, the hydraulic gradient of groundwater can be accurately simulated, the hydrogeological conditions of the polluted site can be restored more realistically, the real environment simulation of groundwater pollution treatment can be realized, the simulation effect of groundwater pollution treatment experiments can be improved, and the simulation of groundwater pollution treatment can be made more convenient.

[0016] (2) By installing a temperature controller in the test box of the utility model, the characteristics of groundwater pollution migration under different temperature conditions can be simulated.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic elevation view of the structure of the utility model;

[0020] Figure 2 It is a schematic view of the ball valve part of the structure of the utility model;

[0021] Figure 3 It is a schematic view of the temperature control part of the structure of the utility model;

[0022] Figure 4 It is a schematic cross-sectional view of the water inlet filter surface of the structure of the utility model;

[0023] Figure 5 Schematic cross-sectional view of the water outlet filter surface of the structure of the present utility model;

[0024] Figure 6 Schematic horizontal cross-sectional view of the structure of the present utility model;

[0025] In the attached drawings, the list of components represented by each label is as follows:

[0026] In the figure: 1, main board; 101, support vertical rod; 102, bottom cushion block; 2, box body; 201, first sealing cover plate; 202, second sealing cover plate; 3, ball valve; 301, rotating rod; 302, rotating handle; 303, fixing bolt; 304, screw groove; 305, pipeline; 4, fixing clamping plate; 401, fixing support rod; 402, battery; 403, temperature control lamp; 5, water inlet filter; 501, water inlet; 502, reinforcing rib; 503, first drain port cover plate; 6, water outlet filter; 601, water outlet; 602, second drain port cover plate; 7, test box; 701, water inlet tank; 702, water outlet tank; 703, first drain port; 704, second drain port. Specific implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figure 1 - Figure 6 As shown in the figure, the present utility model is an experimental device for simulating the migration of groundwater pollution, including a main board 1 and a box body 2. The box body 2 is fixedly installed on the upper surface of the main board 1. The center of the left end surface of the box body 2 is fixedly installed with a pipeline 305. A ball valve 3 is movably installed inside the pipeline 305. A rotating rod 301 is fixedly installed on the upper part of the ball valve 3. A rotating handle 302 is fixedly installed on the top surface of the rotating rod 301. A fixing bolt 303 is fixedly installed on the top surface of the rotating handle 302. The fixing bolt 303 is fixedly connected to the rotating rod 301. There is a screw groove 304 inside the left end of the pipeline 305.

[0029] The outer wall of the box body 2 is fixedly installed with fixing clamping plates 4. The number of the fixing clamping plates 4 is two, which are respectively fixedly installed on the front and back sides of the box body 2. Fixing support rods 401 are fixedly installed on the surfaces of the two fixing clamping plates 4. The number of the fixing support rods 401 is two, which are respectively fixedly installed on the surfaces of the two fixing clamping plates 4. A battery 402 is fixedly installed in the middle of the two fixing support rods 401. A temperature control lamp 403 is fixedly installed on the bottom surface of the battery 402.

[0030] Support vertical rods 101 are fixedly installed on the bottom surface of the main board 1. The number of support vertical rods 101 is four, which are respectively fixedly installed at the four corners of the bottom surface of the main board 1. Bottom cushion blocks 102 are fixedly installed on the bottom surfaces of the four support vertical rods 101. The bottom cushion blocks 102 are made of rubber and have the functions of shock absorption and anti-slip.

[0031] There is a water inlet tank 701 at the left end inside the box body 2. There is a first drain opening 703 inside the water inlet tank 701. The first drain opening 703 is used in cooperation with the first drain opening cover plate 503. There is a test box 7 in the middle part inside the box body 2. There is a water outlet tank 702 at the right end inside the box body 2. There is a second drain opening 704 inside the water outlet tank 702. The second drain opening 704 is used in cooperation with the second drain opening cover plate 602.

[0032] There is a water inlet tank 701 at the left end inside the box body 2. A first sealing cover plate 201 is fixedly installed on the top surface of the water inlet tank 701. There is a water outlet tank 702 at the right end of the box body 2. A second sealing cover plate 202 is fixedly installed on the top surface of the water outlet tank 702.

[0033] A water inlet filter screen 5 is fixedly installed inside the water inlet tank 701. There is a water inlet 501 inside the water inlet filter screen 5. Reinforcing ribs 502 are fixedly installed at the bottom of the water inlet filter screen 5. The number of reinforcing ribs 502 is two, which are respectively fixedly installed at the bottoms of the water inlet filter screen 5 and the water outlet filter screen 6.

[0034] A water outlet filter screen 6 is fixedly installed inside the water outlet tank 702. There is a water outlet 601 on the body of the water outlet filter screen 6. The water outlet 601 is 0.5 cm lower than the water inlet 501.

[0035] During use, first add soil inside the test box 7, then pass water through the pipeline 305 and then pass in polluted water source, then rotate the rotating handle 302 to drive the ball valve 3 to stop adding water. Then the water will flow into the water inlet tank 701 and enter the test box 7 through the water inlet 501 on the water inlet filter screen 5 inside the water inlet tank 701. Then the water flowing into the test box 7 will enter the water outlet tank 702 through the water outlet 601 on the water outlet filter screen 6. Since the water inlet 501 is higher than the water outlet 601, the groundwater hydraulic gradient can be simulated. Then start the temperature control lamp 403, and the situation of underground polluted water flow under the hydraulic gradient at different temperatures can be observed.

[0036] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An experimental device for simulating the migration of groundwater pollution, comprising a main board (1) and a box body (2), characterized in that: A box body (2) is fixedly installed on the upper surface of the main board (1). A pipeline (305) is fixedly installed at the central part of the left end surface of the box body (2). A ball valve (3) is movably installed inside the pipeline (305). A rotating rod (301) is fixedly installed on the upper part of the ball valve (3). A rotating handle (302) is fixedly installed on the top surface of the rotating rod (301). A fixing bolt (303) is fixedly installed on the top surface of the rotating handle (302). The fixing bolt (303) is fixedly connected to the rotating rod (301). A screw groove (304) exists inside the left end of the pipeline (305).

2. The experimental device for simulating the migration of groundwater pollution according to claim 1, wherein: Fixing clamping plates (4) are fixedly installed on the outer wall of the box body (2). The number of the fixing clamping plates (4) is two, which are respectively fixedly installed on the front and back sides of the box body (2). Fixing support rods (401) are fixedly installed on the surfaces of the two fixing clamping plates (4). The number of the fixing support rods (401) is two, which are respectively fixedly installed on the surfaces of the two fixing clamping plates (4). A battery (402) is fixedly installed at the middle part between the two fixing support rods (401). A temperature control lamp (403) is fixedly installed on the bottom surface of the battery (402).

3. An experimental device for simulating the migration of groundwater pollution according to claim 1, characterized in that: Support vertical rods (101) are fixedly installed on the bottom surface of the main board (1). The number of the support vertical rods (101) is four, which are respectively fixedly installed at the four corners of the bottom surface of the main board (1). Bottom cushion blocks (102) are fixedly installed on the bottom surfaces of the four support vertical rods (101). The bottom cushion blocks (102) are made of rubber and have the functions of shock absorption and anti-slip.

4. An experimental device for simulating the migration of groundwater pollution according to claim 2, characterized in that: An inlet water tank (701) exists at the left end part inside the box body (2). A first water drain port (703) exists inside the inlet water tank (701). The first water drain port (703) is used in cooperation with a first water drain port cover plate (503). A test box (7) exists at the middle part inside the box body (2). An outlet water tank (702) exists at the right end part inside the box body (2). A second water drain port (704) exists inside the outlet water tank (702). The second water drain port (704) is used in cooperation with a second water drain port cover plate (602).

5. An experimental device for simulating the migration of groundwater pollution according to claim 4, characterized in that: An inlet water tank (701) exists at the left end inside the box body (2). A first sealing cover plate (201) is fixedly installed on the top surface of the inlet water tank (701). An outlet water tank (702) exists at the right end of the box body (2). A second sealing cover plate (202) is fixedly installed on the top surface of the outlet water tank (702).

6. The experimental device for simulating the migration of groundwater pollution according to claim 5, wherein: An inlet water filter (5) is fixedly installed inside the inlet water tank (701). An inlet water port (501) exists inside the inlet water filter (5). Reinforcing ribs (502) are fixedly installed at the bottom of the inlet water filter (5). The number of the reinforcing ribs (502) is two, which are respectively fixedly installed at the bottoms of the inlet water filter (5) and the outlet water filter (6).

7. An experimental device for simulating the migration of groundwater pollution according to claim 5, characterized in that: An outlet water filter (6) is fixedly installed inside the outlet water tank (702). An outlet water port (601) exists on the body of the outlet water filter (6). The outlet water port (601) is 0.5 cm lower than the inlet water port (501).

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