Solid decontamination device for radiation residues in test field after nuclear explosion
By designing a solid decontamination device for radiation residues at the test site after a nuclear explosion, the problems of difficult material removal and pipeline leakage were solved, enabling convenient material removal and leakage alarms, and ensuring the safety and reliability of the decontamination process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-17
AI Technical Summary
In the current technology for solid decontamination at test sites after a nuclear explosion, it is difficult to remove materials and leaks are prone to occur at pipe connections, leading to waste liquid leakage that cannot be detected and dealt with in a timely manner.
A solid decontamination device for radiation residues at a test site after a nuclear explosion was designed. It includes a main shell, a waste liquid collection tank, a stirring motor, a suction pump, a spray head, a rotating shaft, a filter plate, and a leakage alarm system. The mechanical structure facilitates the removal of materials, and the airtight ring and pressure sensor are used to detect leaks.
It enables convenient material removal and timely leakage alarms, ensuring the safety and reliability of the decontamination process and preventing waste liquid leakage.
Smart Images
Figure CN224005673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nuclear test technology, specifically to a device for solid decontamination of radiation residues at a test site after a nuclear explosion. Background Technology
[0002] The radiation is primarily produced by radioactive nuclides released from the explosion, including gamma rays, beta rays, and neutron radiation. The duration of this radiation depends on the half-life of the radioactive nuclides.
[0003] Currently, when decontaminating solids at experimental sites after nuclear explosions, chelating agents are mostly used for spraying. However, in actual use, the material is inside the equipment and needs to be manually moved. The uncertain state of the material inside makes it extremely difficult to remove. At the same time, the sprayed chelating agent needs to be introduced into the waste liquid tank. However, the connection between the pipeline and the waste liquid tank will leak after a long period of use. Because the initial leakage is small, it is impossible to investigate it in time, which leads to the leakage of waste liquid. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a solid decontamination device for radiation residues at a nuclear explosion test site, which has the advantages of easy material removal and leakage alarm, thus solving the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: a solid decontamination device for radiation residue at a nuclear explosion test site, comprising a main shell, a waste liquid collection tank on the outside of the main shell, a fixing frame, a suction pump one, and a stirring motor fixedly installed on the top of the main shell, a stirring tank fixedly installed on the top of the fixing frame, a controller two fixedly installed on the outer wall of the main shell, a warning light fixedly installed on the outer wall of the controller two, a horizontal pipe fixedly installed at the bottom of the suction pump one, a spray head fixedly installed at the bottom of the horizontal pipe, a suction pump two fixedly installed on the outer wall of the main shell, a connecting pipe fixedly installed on the top of the suction pump two, a rotating shaft rotatably connected to the inner wall of the main shell, a filter plate fixedly sleeved on the outer wall of the rotating shaft, a motor one fixedly installed on the inner wall of the main shell, and a threaded rod one fixedly installed on the output shaft of the motor one. A limit rod is fixedly installed on the inner wall of the housing. A blocking platform is provided on the inner wall of the main housing. A horizontal plate is slidably connected to the inner wall of the main housing. A sealing plate is fixedly installed on the outer wall of the horizontal plate. A second motor is fixedly installed on the outer wall of the main housing. A threaded rod is fixedly installed on the output shaft of the second motor. A rack is slidably connected to the inner wall of the main housing. A gear is fixedly sleeved on the outer wall of the rotating shaft. An annular groove is opened at the top of the waste liquid collection tank. A sealing disc is slidably sleeved on the outer wall of the connecting pipe. An airtight ring is fixedly installed at the bottom of the sealing disc. A bolt is threadedly connected to the inner wall of the airtight ring. A fixing column is fixedly installed at the top of the sealing disc. A top plate is slidably connected to the inner wall of the fixing column. A spring is provided on the inner wall of the fixing column. A pressure sensor is fixedly installed on the inner wall of the fixing column. A controller is fixedly installed on the top of the pressure sensor.
[0006] As a preferred technical solution of this utility model: there are two airtight rings, and the diameters of the two airtight rings are the same as the diameters of the inner wall of the annular groove and the outer wall of the connecting pipe, respectively. The two airtight rings are located between the sealing disc and the connecting pipe and at the bottom of the sealing disc, respectively.
[0007] As a preferred technical solution of this utility model: the pressure sensor is electrically connected to controller one, controller one is electrically connected to controller two, and controller two is electrically connected to the warning light.
[0008] As a preferred technical solution of this utility model: the threaded rod two passes through the rack, and the threaded rod two and the rack are threadedly connected, and the rack is in contact with the inner wall of the main housing.
[0009] As a preferred technical solution of this utility model: the rack is located at the top of the gear, and the rack meshes with the gear.
[0010] As a preferred technical solution of this utility model: the threaded rod and the limiting rod pass through the horizontal plate, and the threaded rod is threadedly connected to the horizontal plate, while the limiting rod is slidably connected to the horizontal plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. The solid decontamination device for radiation residue at the test site after the nuclear explosion works by starting motor one, which in turn drives threaded rod one to rotate, which in turn drives a horizontal plate to move, which in turn drives a sealing plate to move, allowing the sealing plate to enter the interior of the main shell. At this time, motor two is started, which in turn drives threaded rod two to rotate, which in turn drives a rack to slide on the inner wall of the main shell, causing the rack to drive a rotating shaft to rotate, which in turn drives a gear to rotate, which in turn drives the rotating shaft to rotate, which in turn drives the filter plate to rotate, causing the end of the filter plate away from the rotating shaft to rotate to the top of the horizontal plate. At this time, the material at the top of the filter plate slides outward by gravity.
[0013] 2. The solid decontamination device for radiation residue at the nuclear explosion test site allows leaked liquid to enter the interior of the sealed disc. Because the interior of the sealed disc is a sealed space, the gas inside the sealed disc is compressed, which in turn pushes the top plate upwards, causing the top plate to move toward the trigger head of the pressure sensor. This triggers the pressure sensor, which then sends an electrical signal to controller one. Controller one then sends an electrical signal to controller two. Upon receiving the electrical signal, controller two activates a flashing warning light to alert personnel that there is a leak at the connection between the connecting pipe and the waste liquid collection tank. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic cross-sectional view of the present invention.
[0016] Figure 3 This is a schematic diagram of the fixing frame structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the sealing disc structure of this utility model;
[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0019] In the diagram: 1. Main casing; 2. Waste liquid collection tank; 3. Fixing frame; 4. Mixing tank; 5. Suction pump one; 6. Mixing motor; 7. Horizontal pipe; 8. Spray head; 9. Suction pump two; 10. Connecting pipe; 11. Filter plate; 12. Rotating shaft; 13. Motor one; 14. Threaded rod one; 15. Limiting rod; 16. Blocking platform; 17. Motor two; 18. Horizontal plate; 19. Sealing plate; 20. Rack; 21. Threaded rod two; 22. Gear; 23. Annular groove; 24. Sealing disc; 25. Airtight ring; 26. Bolt; 27. Fixing column; 28. Top plate; 29. Spring; 30. Pressure sensor; 31. Controller one; 32. Controller two; 33. Warning light. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1 - Figure 5A solid decontamination device for radiation residues at a nuclear test site after an explosion includes a main shell 1. A waste liquid collection tank 2 is located outside the main shell 1. A mounting frame 3, a suction pump 5, and a stirring motor 6 are fixedly installed on the top of the main shell 1. A stirring tank 4 is fixedly installed on the top of the mounting frame 3. A controller 2 32 is fixedly installed on the outer wall of the main shell 1, and a warning light 33 is fixedly installed on the outer wall of the controller 2 32. A horizontal pipe 7 is fixedly installed at the bottom of the suction pump 5, and a spray head 8 is fixedly installed at the bottom of the horizontal pipe 7. A suction pump 2 9 is fixedly installed on the outer wall of the main shell 1, and a connecting pipe 10 is fixedly installed on the top of the suction pump 2 9. A rotating shaft 12 is rotatably connected to the inner wall of the main shell 1, and a filter plate 11 is fixedly sleeved on the outer wall of the rotating shaft 12. A motor 13 is fixedly installed on the inner wall of the main shell 1, and a threaded rod 14 is fixedly installed on the output shaft of the motor 13. A limit rod 15 is fixedly installed on the inner wall of the main shell 1. The inner wall of the main housing 1 is provided with a blocking platform 16. A horizontal plate 18 is slidably connected to the inner wall of the main housing 1. A sealing plate 19 is fixedly installed on the outer wall of the horizontal plate 18. A second motor 17 is fixedly installed on the outer wall of the main housing 1. A threaded rod 21 is fixedly installed on the output shaft of the second motor 17. A rack 20 is slidably connected to the inner wall of the main housing 1. A gear 22 is fixedly sleeved on the outer wall of the rotating shaft 12. An annular groove 23 is opened at the top of the waste liquid collection tank 2. A sealing disc 24 is slidably sleeved on the outer wall of the connecting pipe 10. An airtight ring 25 is fixedly installed at the bottom of the sealing disc 24. A bolt 26 is threadedly connected to the inner wall of the airtight ring 25. A fixing column 27 is fixedly installed at the top of the sealing disc 24. A top plate 28 is slidably connected to the inner wall of the fixing column 27. A spring 29 is provided on the inner wall of the fixing column 27. A pressure sensor 30 is fixedly installed on the inner wall of the fixing column 27. A controller 31 is fixedly installed on the top of the pressure sensor 30.
[0022] In the above structure, the chelating agent raw material and water are added into the mixing tank 4 in equal proportion. The stirring motor 6 is started, which stirs the chelating agent and water in the mixing tank 4 to make them fully mixed. The chelating agent inside the fixing frame 3 is extracted by the suction pump 5 and discharged into the horizontal pipe 7, which then transmits the chelating agent to the spray head 8, so that the spray head 8 sprays out the chelating agent.
[0023] In a preferred embodiment, there are two airtight rings 25, and the diameters of the two airtight rings 25 are the same as the diameters of the inner wall of the annular groove 23 and the outer wall of the connecting pipe 10, respectively. The two airtight rings 25 are located between the sealing disc 24 and the connecting pipe 10 and at the bottom of the sealing disc 24, respectively.
[0024] In the above structure, the airtight ring 25 located between the connecting pipe 10 and the sealing plate 24 seals the connecting pipe 10 and the sealing plate 24, thereby preventing gas from entering or exiting through the gap between the connecting pipe 10 and the sealing plate 24. The airtight ring 25 at the bottom of the sealing plate 24 seals the bottom of the inner wall of the annular groove 23 with the sealing plate 24, thereby preventing gas from entering or exiting through the gap between the annular groove 23 and the sealing plate 24, thus forming a sealed space inside the sealing plate 24.
[0025] In a preferred embodiment: the pressure sensor 30 is electrically connected to the controller 31, the controller 31 is electrically connected to the controller 32, and the controller 32 is electrically connected to the warning light 33.
[0026] In the above structure, when the pressure sensor 30 is triggered, the pressure sensor 30 sends an electrical signal to the controller 31, which in turn causes the controller 31 to send an electrical signal to the controller 32. After receiving the electrical signal, the controller 32 operates the warning light 33 to flash, reminding the staff that the pressure sensor 30 has been triggered.
[0027] In a preferred embodiment: the threaded rod 21 passes through the rack 20, and the threaded rod 21 and the rack 20 are threadedly connected, and the rack 20 is in contact with the inner wall of the main housing 1.
[0028] In the above structure, by starting the second motor 17, the second motor 17 drives the second threaded rod 21 to rotate. Through the threaded connection between the second threaded rod 21 and the rack 20, the rack 20 is driven to slide on the inner wall of the main housing 1. Then, through the contact between the rack 20 and the inner wall of the main housing 1, the rack 20 is limited, so that the rack 20 will not rotate due to the rotational force of the second threaded rod 21.
[0029] In a preferred embodiment, rack 20 is located on top of gear 22 and meshes with gear 22.
[0030] In the above structure, the movement of the rack 20 causes the rack 20 to mesh with the rotating shaft 12, thereby causing the rotating shaft 12 to rotate. This causes the rotating shaft 12 to drive the gear 22 to rotate, which in turn causes the rotating shaft 12 to rotate, and the rotating shaft 12 to drive the filter plate 11 to rotate.
[0031] In a preferred embodiment: the threaded rod 14 and the limiting rod 15 pass through the horizontal plate 18, and the threaded rod 14 is threadedly connected to the horizontal plate 18, while the limiting rod 15 is slidably connected to the horizontal plate 18.
[0032] In the above structure, by starting the motor 13, the motor 13 drives the threaded rod 14 to rotate, and the threaded rod 14 drives the horizontal plate 18 to move through the threaded connection with the horizontal plate 18, which in turn drives the sealing plate 19 to move. At the same time, through the sliding connection between the limiting rod 15 and the horizontal plate 18, the horizontal plate 18 is limited by the limiting rod 15, so that the horizontal plate 18 will not tilt when it moves.
[0033] Working Principle: When using this equipment, place the items to be cleaned on top of the filter plate 11 and seal the main housing 1. Then, add the chelating agent and water in equal proportions into the mixing tank 4. Start the stirring motor 6 to mix the chelating agent and water inside the mixing tank 4 thoroughly. The suction pump 5 extracts the chelating agent from the fixed frame 3 and discharges it into the horizontal pipe 7, which then transmits the chelating agent to the spray head 8. The spray head 8 sprays out the chelating agent, which dissolves the metallic radioactive nuclides attached to the surface of the cleaned items. The contaminated chelating agent then passes through the filter... Plate 11 flows into the bottom of the main housing 1. At this time, suction pump 2 9 starts, which draws in the waste liquid and discharges it into the waste liquid collection tank 2 through connecting pipe 10. The waste liquid collection tank 2 stores the waste liquid. Then, motor 13 is started, which drives threaded rod 14 to rotate. Threaded rod 14 moves the horizontal plate 18 through its threaded connection with the horizontal plate 18, which in turn moves the sealing plate 19, allowing the sealing plate 19 to enter the main housing 1. Then, motor 2 17 is started, which drives threaded rod 21. The rotation, through the threaded connection between the threaded rod 21 and the rack 20, causes the rack 20 to slide on the inner wall of the main housing 1. This causes the rack 20 to mesh with the rotating shaft 12, which in turn causes the rotating shaft 12 to rotate. The rotating shaft 12 then drives the gear 22 to rotate, which in turn drives the rotating shaft 12 to rotate. The rotating shaft 12 then drives the filter plate 11 to rotate, causing the end of the filter plate 11 away from the rotating shaft 12 to rotate to the top of the horizontal plate 18. At this time, the material on the top of the filter plate 11 slides outward by gravity. When a leak occurs at the connection between the connecting pipe 10 and the waste liquid collection tank 2, the leaked liquid enters the interior of the sealing disc 24. Since the interior of the sealing disc 24 is a sealed space, the gas inside the sealing disc 24 is compressed, which in turn causes the gas inside the sealing disc 24 to push the top plate 28 upward, causing the top plate 28 to move toward the trigger head of the pressure sensor 30, thus triggering the pressure sensor 30. At this time, the pressure sensor 30 sends an electrical signal to the controller 1 31, which in turn sends an electrical signal to the controller 2 32. After receiving the electrical signal, the controller 2 32 operates the warning light 33 to flash, reminding the staff that there is a leak at the connection between the connecting pipe 10 and the waste liquid collection tank 2.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A nuclear post-detonation test site radiation residual solid decontamination device comprising a main housing (1), characterized in that: The outside of the main shell (1) is provided with a waste liquid collecting tank (2), the top of the main shell (1) is respectively fixedly provided with a fixed rack (3), a suction pump (5) and a stirring motor (6), the top of the fixed rack (3) is fixedly provided with a stirring barrel (4), the outer wall of the main shell (1) is fixedly provided with a controller (32), the outer wall of the controller (32) is fixedly provided with a warning light (33), the bottom of the suction pump (5) is fixedly provided with a cross pipe (7), the bottom of the cross pipe (7) is fixedly provided with a shower head (8), the outer wall of the main shell (1) is fixedly provided with a suction pump (9), the top of the suction pump (9) is fixedly provided with a connecting pipe (10), the inner wall of the main shell (1) is rotatably connected with a rotating shaft (12), the outer wall of the rotating shaft (12) is fixedly sleeved with a filter plate (11), the inner wall of the main shell (1) is fixedly provided with a motor (13), the output shaft of the motor (13) is fixedly provided with a threaded rod (14), the inner wall of the main shell (1) is fixedly provided with a limiting rod (15), the inner wall of the main shell (1) is provided with a blocking table (16), the inner wall of the main shell (1) is slidably connected with a cross plate (18), the outer wall of the cross plate (18) is fixedly provided with a sealing plate (19), the outer wall of the main shell (1) is fixedly provided with a motor (17), the output shaft of the motor (17) is fixedly provided with a threaded rod (21), the inner wall of the main shell (1) is slidably connected with a rack (20), the outer wall of the rotating shaft (12) is fixedly sleeved with a gear (22), the top of the waste liquid collecting tank (2) is provided with an annular groove (23), the outer wall of the connecting pipe (10) is slidably sleeved with a sealing disc (24), the bottom of the sealing disc (24) is fixedly provided with an airtight ring (25), the inner wall of the airtight ring (25) is threadedly connected with a bolt (26), the top of the sealing disc (24) is fixedly provided with a fixed column (27), the inner wall of the fixed column (27) is slidably connected with a top plate (28), the inner wall of the fixed column (27) is provided with a spring (29), the inner wall of the fixed column (27) is fixedly provided with a pressure sensor (30), and the top of the pressure sensor (30) is fixedly provided with a controller (31).
2. A nuclear post-detonation test site radiation residual solid decontamination apparatus according to claim 1, characterized in that: The number of the airtight ring (25) is two, and the diameters of the two airtight rings (25) are respectively the same as the diameters of the inner wall of the annular groove (23) and the outer wall of the connecting pipe (10), and the two airtight rings (25) are located between the sealing disc (24) and the connecting pipe (10) and the bottom of the sealing disc (24) respectively.
3. A nuclear post-detonation test site radiation residual solid decontamination apparatus according to claim 1, characterized in that: The pressure sensor (30) and the controller (31) are electrically connected, the controller (31) and the controller (32) are electrically connected, and the controller (32) and the warning light (33) are electrically connected.
4. A nuclear post-detonation test site radiation residual solid decontamination apparatus according to claim 1, characterized in that: The threaded rod (21) penetrates the rack (20), and the threaded rod (21) and the rack (20) are in threaded connection, and the rack (20) is attached to the inner wall of the main shell (1).
5. A nuclear post-detonation test site radiation residual solid decontamination apparatus according to claim 1, characterized in that: The rack (20) is located on the top of the gear (22), and the rack (20) is engaged with the gear (22).
6. A nuclear post-detonation test site radiation residual solid decontamination apparatus according to claim 1, characterized in that: The threaded rod (14) and the limiting rod (15) penetrate the cross plate (18), and the threaded rod (14) is screwed with the cross plate (18), and the limiting rod (15) is slidingly connected with the cross plate (18).