Rainfall intensity simulation device and radionuclide migration simulation system

Abstract

The utility model discloses a rainfall intensity simulation device and a radionuclide migration simulation system, and relates to the technical field of soil erosion. Wherein the rainfall intensity simulation device comprises a test device, and the test device further comprises a test box; a rain storage box is arranged on the upper side of the test box, a rain collecting assembly used for collecting rainwater is arranged on the upper side of the rain storage box, and a drainage assembly is arranged between the rain storage box and the test box; the drainage assembly is provided with a flow adjusting assembly. Wherein the drainage assembly is used for leading rainwater in the rain storage box into the test box. The problems that outdoor test conditions are not easy to control, sampling is inconvenient, and the adjustable rainfall intensity cannot be met are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil erosion, in particular to a rainfall intensity simulation device and a radionuclide migration simulation system. Background Art

[0002] The application of radionuclide tracing to study soil erosion has become one of the international frontier research hotspots in soil science. Be7 is a radionuclide of cosmic ray origin. It is generated by the splitting of oxygen and nitrogen in the troposphere and stratosphere under the action of cosmic rays. The generated Be7 reaches the surface through dry and wet deposition, and its half-life is 53.3 days. Be7 that reaches the surface through deposition can be quickly adsorbed by the soil and migrate with the movement of soil particles. This property of Be7 makes it suitable for tracing the soil erosion rate in a short period of time or under a rainfall. In the same area, the change of Be7 flux is mainly affected by precipitation. However, the migration law of Be7 with water in rainwater under different rainfall intensities still needs further study.

[0003] At present, outdoor test conditions are difficult to control and sampling is inconvenient, which cannot meet the requirements of adjustable rainfall intensity, and thus it is impossible to study its vertical distribution characteristics based on the process of sedimentation-soil adsorption-migration. Utility Model Content

[0004] In view of this, the utility model provides a technical solution of a test device, a rainfall intensity simulation device and a radionuclide migration simulation system.

[0005] In a first aspect, the utility model provides a test device, comprising: a test box; a rain storage box is arranged on the upper side of the test box, a rain collection assembly for collecting rainwater is arranged on the upper side of the rain storage box, and a drainage assembly is arranged between the rain storage box and the test box;

[0006] Wherein, the drainage component is used to introduce rainwater in the rain storage box into the test box.

[0007] Preferably, a water spray assembly connected to the drainage assembly is provided on the inner side of the test box; wherein the water spray assembly is used to simulate the rainfall process of the rainwater.

[0008] Preferably, the drainage component comprises: a water pipe; wherein one end of the water pipe is arranged in the rain storage box, and the other end of the water pipe is arranged in the test box.

[0009] Preferably, one end of the water pipe is also connected to a water pump; wherein the water pump is used to provide power for introducing rainwater in the rain storage tank into the test box.

[0010] Preferably, the other end of the water pipe disposed in the test box is connected to a water spray assembly for simulating a rainfall process.

[0011] Preferably, the other end of the water pipe connected to the water spray assembly is provided with a connecting mechanism for connecting to the water spray assembly.

[0012] Preferably, the connection mechanism is configured as an internal thread / external thread provided on the water conduit, and the water spray assembly is provided with an external thread / internal thread matching the internal thread / external thread.

[0013] Preferably, the connecting mechanism comprises: a connecting pipe and a screw hole, and the connecting pipe is provided with a guide groove and a limit groove; wherein the guide groove is used to ensure that the water spray assembly does not produce lateral displacement; the limit groove is used to ensure that the water spray assembly does not produce longitudinal displacement.

[0014] Preferably, the water spray assembly comprises: a replaceable spray head; wherein a limiting block matching the guide groove is provided on the inner side of one side of the spray head, and an end face of one side of the spray head is abutted in the limiting groove.

[0015] Preferably, the water spray assembly further comprises: a connecting tube; wherein the connecting tube is sleeved at the connection between the connecting pipe and the spray head to further fix the water spray assembly.

[0016] Preferably, a screw hole is provided on the main body of the connecting tube; wherein a positioning bolt matching the screw hole passes through the screw hole and is connected to the pipe wall at the other end of the connecting pipe or the water inlet assembly on one side of the nozzle.

[0017] Preferably, the test box is provided with a plurality of sockets at different heights; wherein the sampling assembly passes through the sockets corresponding to the set heights to perform layered sampling of the soil in the test box.

[0018] Preferably, the plurality of jacks at different heights are respectively provided with corresponding sealing covers; and / or the sampling assembly is configured as a plastic tube.

[0019] Preferably, the rain collection assembly comprises: a rain collection shed inclined to one side, wherein a butt joint connected to the rain storage tank is provided at the inclined portion.

[0020] Preferably, a filter cartridge is provided at the pipe opening of the butt joint pipe on one side of the rainwater collecting shed.

[0021] Preferably, the rain collecting assembly further comprises: a support rod is provided on one side of the rain collecting shed, wherein the support rod is for ensuring that the rain collecting shed is tilted to one side.

[0022] Preferably, a drainage assembly is also provided on the lower side of the test box.

[0023] Preferably, the drainage assembly includes: a drainage hose connected to the interior of the test box.

[0024] Preferably, the drainage assembly further comprises: a mounting frame installed at the lower side of the test box, the drainage hose is arranged on the inner side of the mounting frame, and the mounting frame is also provided with a control mechanism for controlling the drainage volume.

[0025] Preferably, the control mechanism comprises: a locking wheel arranged on the inner side of the mounting frame and in contact with the outer side of the drainage hose, and two sides of the locking wheel are respectively slidably connected to side grooves arranged on the mounting frame.

[0026] Preferably, the test box and / or the rainwater storage box are provided with an inspection door.

[0027] A soil sample anti-loss mechanism is provided at the bottom of the test box; wherein the soil sample anti-loss mechanism is used to prevent the soil in the test box from being lost; and / or the soil sample anti-loss mechanism is configured as a water-permeable gauze.

[0028] In the second aspect, the utility model provides a rainfall intensity simulation device, which applies to or includes: a test device as mentioned above; wherein the drainage component is equipped with a flow regulating component; the flow regulating component is used to regulate the corresponding flow rate of rainwater in the rain storage box introduced into the test box.

[0029] Preferably, the flow regulating component is configured as a flow regulating valve.

[0030] In a third aspect, the utility model provides a radionuclide migration simulation system, which applies to or includes: the test device as described above and / or the rainfall intensity simulation device as described above.

[0031] Preferably, the radioactive nuclide is Be7.

[0032] The utility model has at least the following beneficial effects:

[0033] The utility model provides a rainfall intensity simulation device and a radionuclide migration simulation system to solve the problems of difficult control of outdoor test conditions and inconvenience in sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0035] Figure 1 It is a schematic diagram of the external structure corresponding to the test device, the rainfall intensity simulation device and the radionuclide migration simulation system of the embodiment of the utility model;

[0036] Figure 2It is a schematic diagram of the internal structure corresponding to the test device, the rainfall intensity simulation device and the radionuclide migration simulation system of the embodiment of the utility model;

[0037] Figure 3 It is a schematic diagram of the structure corresponding to the rain collecting component and the water spraying component of the embodiment of the utility model;

[0038] Figure 4 It is a schematic structural diagram corresponding to the drainage component of an embodiment of the utility model;

[0039] Figure 5 It is a schematic structural diagram corresponding to the drainage component of an embodiment of the utility model.

[0040] In the figure: 1. test box; 2. rain storage box; 3. drainage assembly; 31. water guide pipe; 32. flow regulating valve; 33. connecting pipe; 34. guide groove; 35. limit groove; 4. rain collection assembly; 41. rain collection shed; 42. support rod; 43. docking pipe; 44. filter cartridge; 5. inspection door; 6. water spray assembly; 61. nozzle; 62. limit block; 63. connecting tube; 64. screw hole; 65. positioning bolt; 7. socket; 8. sealing cover; 9. plastic pipe; 10. water-permeable gauze; 11. drainage assembly; 111. drainage hose; 112. mounting bracket; 113. side groove; 114. locking wheel; 12. water pump. DETAILED DESCRIPTION

[0041] The present invention is described below based on embodiments, but it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.

[0042] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn according to scale.

[0043] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0044] Figure 1 It is a schematic diagram of the external structure corresponding to the test device, the rainfall intensity simulation device and the radionuclide migration simulation system of the embodiment of the utility model; Figure 2 Schematic diagram of the internal structure of the test device, rainfall intensity simulation device and radionuclide migration simulation system according to the embodiment of the utility model. Figure 1 and Figure 2As shown, the test device comprises: a test box 1; a rain storage box 2 is arranged on the upper side of the test box 1, a rain collection component 4 for collecting rainwater is arranged on the upper side of the rain storage box 2, and a drainage component 3 is arranged between the rain storage box 2 and the test box 1; wherein the drainage component 3 is used to introduce the rainwater in the rain storage box 2 into the test box 1. This solves the problem that outdoor test conditions are difficult to control and sampling is inconvenient.

[0045] In the implementation of the present disclosure, a water spray assembly 6 connected to the drainage assembly 3 is provided on the inner side of the test box 1; wherein the water spray assembly 6 is used to simulate the rainfall process of the rainwater.

[0046] In the implementation of the present disclosure and other possible embodiments, a rain storage box 2 is provided on the upper surface of the test box 1, a rain collecting assembly 4 is provided on the upper surface of the rain storage box 2, a drainage assembly 3 is provided on the top of the inner cavity of the test box 1, and the water outlet end of the drainage assembly 3 is detachably connected to a water spray assembly 6.

[0047] Figure 3 Schematic diagram of the structure of the rain collection component of the embodiment of the utility model. Figure 3 As shown, the rain collecting assembly 4 includes: a rain collecting shed 41 tilted to one side, and a butt joint 43 connected to the rain storage box 2 is provided at the tilted position. A filter cartridge 44 is provided at the pipe mouth of the butt joint 43 on one side of the rain collecting shed 41. The rain collecting assembly 4 also includes: a support rod 42 is provided on one side of the rain collecting shed 41, wherein the support rod 42 is used to ensure that the rain collecting shed 41 tilts to one side.

[0048] In the implementation of the present disclosure and other possible embodiments, the rain collecting assembly 4 includes a rain collecting canopy 41, and two groups of support rods 42 are fixedly connected to the lower surface of the rain collecting canopy 41, and a docking tube 43 connected to the rain storage box 2 is provided at the other end of the lower surface of the rain collecting canopy 41, and a filter cartridge 44 is provided in the docking tube 43. Rainwater can be collected through the rain collecting canopy 41, and dust and impurities are prevented from entering the rain storage box 2 through the filter cartridge 44, thereby preventing impurities from clogging the replaceable nozzle 61.

[0049] Figure 4 Schematic diagram of the structure of the drainage assembly and the water spray assembly of the utility model embodiment. Figure 4 As shown, the drainage component 3 includes: a water pipe 31; wherein one end of the water pipe 31 is arranged in the rain storage box 2, and the other end of the water pipe 31 is arranged in the test box 1.

[0050] In the implementation of the present disclosure, one end of the water pipe 31 is also connected to the water pump 12; wherein the water pump 12 is used to provide power for introducing rainwater in the rain storage box 2 into the test box 1.

[0051] In the implementation of the present disclosure, the other end of the water pipe 31 disposed in the test box 1 is connected to a water spray assembly 6 for simulating a rainfall process. The other end of the water pipe 31 connected to the water spray assembly 6 is provided with a connection mechanism for connecting to the water spray assembly 6.

[0052] In the implementation of the present disclosure, the connection mechanism is configured as an internal thread / external thread provided on the water conduit 31, and the water spray assembly 6 is provided with an external thread / internal thread matching the internal thread / external thread.

[0053] In the implementation of the present disclosure, the connecting mechanism includes: a connecting pipe 33 and a screw hole 64, and the connecting pipe 33 is provided with a guide groove 34 and a limit groove 35; wherein the guide groove 34 is used to ensure that the water spray assembly 6 does not produce lateral displacement; the limit groove 35 is used to ensure that the water spray assembly 6 does not produce longitudinal displacement.

[0054] In the implementation of the present disclosure, the water spray assembly 6 includes: a replaceable spray head 61; wherein, a limit block 62 matching the guide groove 34 is provided on the inner side of one side of the spray head 61, and the end face of one side of the spray head 61 is abutted in the limit groove 35.

[0055] In the implementation of the present disclosure, the water spray assembly 6 further includes: a connecting tube 63; wherein the connecting tube 63 is sleeved at the connection between the connecting pipe 33 and the spray head 61, and is used to further fix the water spray assembly 6. wherein a screw hole 64 is provided on the main body of the connecting tube 63; wherein a positioning bolt 51 matching the screw hole 64 passes through the screw hole 64 and is connected to the pipe wall at the other end of the connecting pipe 33 or the water inlet assembly on one side of the spray head 61.

[0056] In the implementation of the present disclosure and other possible embodiments, the drainage component 3 includes: a water pipe 31 inserted into one side of the rain storage box 2, the other end of the water pipe 31 is arranged on the top of the test box 1, the other end of the water pipe 31 is connected to a connecting pipe 33, two groups of guide grooves 34 are symmetrically opened on the outer side of the connecting pipe 33, and a limiting groove 35 connected to the two groups of guide grooves 34 is opened on the outer side of the connecting pipe 33.

[0057] In the implementation of the present disclosure and other possible embodiments, the water spray assembly 6 includes: a replaceable spray head 61, the inner wall of the replaceable spray head 61 is symmetrically provided with a limit block 62 that is slidably connected to the two groups of guide grooves 34, and the limit block 62 is clamped in the limit groove 35.

[0058] In the implementation of the present disclosure and other possible embodiments, the water spray assembly 6 also includes: a connecting tube 63 that is sleeved on the outside of the connecting pipe 33, and a screw hole 64 is provided on the outside of the connecting tube 63. A positioning bolt 65 is threadedly connected to the inner cavity of the screw hole 64, and one end of the positioning bolt 65 is in contact with the outside of the replaceable nozzle 61. The replaceable nozzle head 61 and the connecting pipe 33 are protected after docking through the connecting tube 63, thereby ensuring the stability of the docking between the replaceable nozzle head 61 and the connecting pipe 33.

[0059] Figure 5 Schematic diagram of the structure of the drainage assembly of the utility model embodiment. Figure 5 As shown, a drainage assembly 11 is also provided at the lower side of the test box 1. The drainage assembly 11 includes: a drainage hose 111 connected to the inside of the test box 1. The drainage assembly 11 also includes: a mounting frame 112 installed at the lower side of the test box 1, the drainage hose 111 is arranged inside the mounting frame 112, and the mounting frame 112 is also provided with a control mechanism for controlling the drainage amount.

[0060] In the implementation of the present disclosure, the control mechanism includes: a locking wheel 114 disposed inside the mounting frame 112 and in contact with the outside of the drainage hose 111, and both sides of the locking wheel 114 are slidably connected to the side grooves 113 disposed on the mounting frame 112. The test box 1 and / or the rain storage box 2 are provided with an inspection door 5.

[0061] In the implementation of the present disclosure, a soil sample anti-loss mechanism is provided at the bottom of the test box 1, wherein the soil sample anti-loss mechanism is used to prevent the soil in the test box 1 from being lost. The soil sample anti-loss mechanism is configured as a water-permeable gauze 10.

[0062] In the implementation of the present disclosure, the test box 1 is provided with a plurality of plug holes 7 at different heights; wherein the sampling assembly passes through the plug holes 7 corresponding to the set heights to perform layered sampling of the soil in the test box 1. wherein the plurality of plug holes 7 at different heights are respectively provided with corresponding sealing covers 8. the sampling assembly is configured as a plastic tube 9.

[0063] In the implementation of the present disclosure and other possible embodiments, a plurality of groups of sockets 7 at different heights are provided on one side of the inner cavity of the test box 1, and the sockets 7 at different heights are all connected to the outside of the test box 1, and a sealing cover 8 is threadedly connected to the inner wall of each group of sockets 7, so that the plastic tube 9 can be conveniently taken out and placed through the sockets 7, thereby facilitating the sampling of soil at different layers, so as to study the migration of Be7 in soil at different layers.

[0064] In the implementation of the present disclosure and other possible embodiments, a plurality of groups of plastic tubes 9 are provided in the inner cavity of the test box 1, and one end of each group of plastic tubes 9 is respectively provided in the inner cavities of a plurality of groups of side tubes 7, a water-permeable gauze 10 is provided at the bottom of the inner cavity of the test box 1, and an inspection door 5 is provided on one side of the test box 1. The water-permeable gauze 10 prevents the loss of soil samples and avoids clogging of the drainage hose 111.

[0065] In the implementation of the present disclosure and other possible embodiments, the drainage assembly 11 includes: a drainage hose 111 arranged at the lower end of one side adjacent to the rain inspection door 5 of the test box 1, a mounting frame 112 is sleeved on the outer side of the drainage hose 111, and a locking wheel 114 is arranged in the mounting frame 112, and side grooves 113 for the locking wheel 114 to be rollingly connected are arranged on both sides of the mounting frame 112, and the locking wheel 114 is used to facilitate the closing and opening of the drainage hose 111, thereby facilitating the recovery of rainwater samples.

[0066] In the implementation of the present disclosure and other possible embodiments, the inner cavity of the rain storage tank 2 is provided with a water pump 12 connected to one end of the water pipe 31, and a flow regulating valve 32 is provided at one end of the water pipe 31 close to the water pump 12. The water pump 12 is used to increase the pressure, thereby simulating and improving the restoration degree of simulated rainfall and improving the experimental efficiency.

[0067] The present disclosure also provides a rainfall intensity simulation device, which may be applied to or include: the test device as described above; wherein the drainage component 3 is configured with a flow regulating component; the flow regulating component is used to regulate the flow rate of rainwater in the rain storage box 2 introduced into the test box 1. The flow regulating component is configured as a flow regulating valve 32.

[0068] The implementation of the present disclosure also proposes a radionuclide migration simulation system, which applies or includes: the above-mentioned test device and / or the above-mentioned rainfall intensity simulation device. Wherein, the radionuclide configuration is Be7.

[0069] When in use, rainwater is collected by the rain collecting shed 41, and then injected into the rain storage box 2 after being filtered by the filter cartridge 44. The water in the rain storage box 2 is discharged from the water spraying component 6 through the drainage component 3 by the water pump 12, so as to simulate rainfall in the test box 1. The amount of rainwater passing through is adjusted by the flow regulating valve 32, so as to simulate different rainfall intensities. The replaceable nozzle 61 is easy to disassemble and assemble, and different replaceable nozzles 61 are convenient to replace, so as to simulate different rainfall conditions, and it is convenient to measure the migration direction of the radioactive nuclide Be7 under different intensities. At the same time, the soil is sampled through the plastic tubes 9 arranged at equal intervals (for example, every 20 cm), so as to improve the efficiency of sampling the test soil.

[0070] The utility model mainly cooperates between a drainage component, a nozzle component, a test box and a rain storage box. The replaceable nozzle is easy to disassemble and assemble, and is convenient to replace. The rainfall intensity is simulated by replacing nozzles with different water outputs, and then the migration law of the radioactive nuclide Be7 in the soil under different rainfall intensities is simulated. The soil is stored in the test box, which is convenient for staff to sample the soil, thereby facilitating experimental research.

[0071] The above-mentioned embodiments are only embodiments of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, without departing from the concept of the present invention, several variations, equivalent substitutions, improvements, etc. can be made, which all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the attached claims.

Claims

1. A rainfall intensity simulation device, characterized in that: include: Test equipment; The test device further comprises: a test box (1); a rain storage box (2) is arranged on the upper side of the test box (1); a rain collection component (4) for collecting rainwater is arranged on the upper side of the rain storage box (2); a drainage component (3) is arranged between the rain storage box (2) and the test box (1); the drainage component (3) is equipped with a flow regulating component; The drainage assembly (3) comprises: a water pipe (31); one end of the water pipe (31) is arranged in the rain storage box (2), and the other end of the water pipe (31) is arranged in the test box (1); one end of the water pipe (31) is also connected to a water pump (12); the other end of the water pipe (31) is connected to a nozzle (61) for simulating a rainfall process through a connecting pipe (33); a limiting block (62) matching a guide groove (34) provided on the connecting pipe (33) is provided on the inner side of one side of the nozzle (61); an end surface of one side of the nozzle (61) is abutted against a limiting groove (35) provided on the connecting pipe (33); a connecting tube (63) is sleeved at the connection between the connecting pipe (33) and the nozzle (61); The rain collecting assembly (4) comprises: a rain collecting shed (41) tilted toward one side and a support rod (42) provided on one side of the rain collecting shed (41); a butt joint (43) in communication with the rain storage box (2) is provided at the tilted portion of the rain collecting shed (41); wherein the support rod (42) is used to ensure that the rain collecting shed (41) tilts toward one side; The drainage component (3) is used to introduce rainwater in the rain storage tank (2) into the test tank (1); the flow regulating component is used to regulate the flow rate corresponding to the introduction of rainwater in the rain storage tank (2) into the test tank (1); The water pump (12) is used to provide power for introducing rainwater in the rainwater storage tank (2) into the test tank (1), and to increase the pressure through the water pump (12), thereby simulating and improving the restoration degree of the simulated rainfall; The guide groove (34) is used to ensure that the nozzle (61) does not generate lateral displacement; and the limit groove (35) is used to ensure that the nozzle (61) does not generate longitudinal displacement.

2. The rainfall intensity simulation device according to claim 1, characterized in that: A screw hole (64) is provided on the main body of the connecting tube (63); wherein a positioning bolt (51) matching the screw hole (64) passes through the screw hole (64) and is connected to the pipe wall at the other end of the connecting pipe (33) or to a water inlet assembly on one side of the spray head (61).

3. The rainfall intensity simulation device according to any one of claims 1 or 2, characterized in that: The test box (1) is provided with a plurality of sockets (7) at different heights; The sampling component passes through a plug hole (7) corresponding to a set height to perform layered sampling of the soil in the test box (1).

4. The rainfall intensity simulation device according to claim 3, characterized in that: The plurality of jacks (7) at different heights are respectively configured with corresponding sealing covers (8); and / or the sampling component is configured as a plastic tube (9).

5. The rainfall intensity simulation device according to any one of claims 1, 2 and 4, characterized in that: A filter cartridge (44) is provided at the pipe opening of the butt joint pipe (43) on one side of the rainwater collecting shed (41).

6. The rainfall intensity simulation device according to claim 3, characterized in that: A filter cartridge (44) is provided at the pipe opening of the butt joint pipe (43) on one side of the rainwater collecting shed (41).

7. The rainfall intensity simulation device according to any one of claims 1, 2, 4 and 6, characterized in that: A drainage assembly (11) is also provided on the lower side of the test box (1).

8. The rainfall intensity simulation device according to claim 3, characterized in that: A drainage assembly (11) is also provided on the lower side of the test box (1).

9. The rainfall intensity simulation device according to claim 5, characterized in that: A drainage assembly (11) is also provided on the lower side of the test box (1).

10. The rainfall intensity simulation device according to claim 7, characterized in that: The drainage assembly (11) comprises a drainage hose (111) connected to the interior of the test box (1).

11. The rainfall intensity simulation device according to any one of claims 8 or 9, characterized in that: The drainage assembly (11) comprises a drainage hose (111) connected to the interior of the test box (1).

12. The rainfall intensity simulation device according to claim 10, characterized in that: The drainage component (11) further comprises: A mounting frame (112) is mounted on the lower side of the test box (1), the drainage hose (111) is arranged inside the mounting frame (112), and the mounting frame (112) is also provided with a control mechanism for controlling the drainage volume.

13. The rainfall intensity simulation device according to claim 11, characterized in that: The drainage component (11) further comprises: A mounting frame (112) is mounted on the lower side of the test box (1), the drainage hose (111) is arranged inside the mounting frame (112), and the mounting frame (112) is also provided with a control mechanism for controlling the drainage volume.

14. The rainfall intensity simulation device according to claim 12 or 13, characterized in that: The control mechanism includes: A locking wheel (114) is disposed inside the mounting frame (112) and in contact with the outside of the drainage hose (111), with two sides of the locking wheel (114) being slidably connected to side grooves (113) provided on the mounting frame (112).

15. The rainfall intensity simulation device according to any one of claims 1, 2, 4, 6, 8-10, 12, and 13, characterized in that: The test box (1) and / or the rainwater storage box (2) are provided with an inspection door (5).

16. The rainfall intensity simulation device according to claim 3, characterized in that: The test box (1) and / or the rainwater storage box (2) are provided with an inspection door (5).

17. The rainfall intensity simulation device according to claim 5, characterized in that: The test box (1) and / or the rainwater storage box (2) are provided with an inspection door (5).

18. The rainfall intensity simulation device according to claim 7, characterized in that: The test box (1) and / or the rainwater storage box (2) are provided with an inspection door (5).

19. The rainfall intensity simulation device according to claim 11, characterized in that: The test box (1) and / or the rainwater storage box (2) are provided with an inspection door (5).

20. The rainfall intensity simulation device according to claim 14, characterized in that: The test box (1) and / or the rainwater storage box (2) are provided with an inspection door (5).

21. The rainfall intensity simulation device according to any one of claims 1, 2, 4, 6, 8-10, 12, 13, 16-20, characterized in that: A soil sample anti-loss mechanism is provided at the bottom of the test box (1); Wherein, the soil sample anti-loss mechanism is used to prevent the soil in the test box (1) from being lost.

22. The rainfall intensity simulation device according to claim 3, characterized in that: A soil sample anti-loss mechanism is provided at the bottom of the test box (1); Wherein, the soil sample anti-loss mechanism is used to prevent the soil in the test box (1) from being lost.

23. The rainfall intensity simulation device according to claim 5, characterized in that: A soil sample anti-loss mechanism is provided at the bottom of the test box (1); Wherein, the soil sample anti-loss mechanism is used to prevent the soil in the test box (1) from being lost.

24. The rainfall intensity simulation device according to claim 7, characterized in that: A soil sample anti-loss mechanism is provided at the bottom of the test box (1); Wherein, the soil sample anti-loss mechanism is used to prevent the soil in the test box (1) from being lost.

25. The rainfall intensity simulation device according to claim 11, characterized in that: A soil sample anti-loss mechanism is provided at the bottom of the test box (1); Wherein, the soil sample anti-loss mechanism is used to prevent the soil in the test box (1) from being lost.

26. The rainfall intensity simulation device according to claim 14, characterized in that: A soil sample anti-loss mechanism is provided at the bottom of the test box (1); Wherein, the soil sample anti-loss mechanism is used to prevent the soil in the test box (1) from being lost.

27. The rainfall intensity simulation device according to claim 15, characterized in that: A soil sample anti-loss mechanism is provided at the bottom of the test box (1); Wherein, the soil sample anti-loss mechanism is used to prevent the soil in the test box (1) from being lost.

28. The rainfall intensity simulation device according to claim 21, characterized in that: The soil sample anti-loss mechanism is configured as a water-permeable gauze (10).

29. The rainfall intensity simulation device according to any one of claims 22 to 27, characterized in that: The soil sample anti-loss mechanism is configured as a water-permeable gauze (10).

30. A radionuclide migration simulation system, characterized in that: The application may include: or a rainfall intensity simulation device as described in any one of claims 1-29; wherein the radioactive nuclide is configured as Be7.

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