An electronic irradiation accelerator room radiation shielding device

Abstract

The present invention discloses a radiation shielding device for an electron irradiation accelerator chamber, and relates to the technical field of irradiation processing auxiliary devices, including a fixed sealing box and an electron irradiation accelerator body, wherein a convenient debugging mechanism is arranged on the top of the fixed sealing box, and a closed heat dissipation mechanism is arranged on the right side of the fixed sealing box, and the convenient debugging mechanism includes an observation tube, and a tilting platform is fixedly installed at the bottom of the inner cavity of the observation tube. The present invention controls the extension of an electric push rod to make the movable sealing plate as a whole move horizontally to the left side, and at the same time makes the extension frame disengage from the inner cavity of the embedding groove, and then controls the first stepper motor to work, drives the receiving block to rotate, and then makes the movable sealing plate rotate around the center of the side of the receiving block to the top of the fixed sealing box, so that the movable sealing plate is completely separated from the left side of the fixed sealing box, and then the electron irradiation accelerator body can be debugged, avoiding the problem of cumbersome disassembly of the shielding device.

Description

Technical Field

[0001] The present invention relates to a radiation shielding device, belonging to the technical field of irradiation processing auxiliary devices, and particularly to a radiation shielding device for an electron irradiation accelerator chamber. Background Art

[0002] Due to the high energy and large current of the electron beam in high-power electron irradiation accelerators, the radiation dose around the components generating and transmitting the electron beam is very high. Therefore, the core components of the entire accelerator must be placed in a sealed space to isolate them from the external environment. The following problems exist in the prior art:

[0003] 1. The existing radiation shielding device does not have the function of convenient debugging. If the user needs to debug the electron irradiation accelerator body, the radiation shielding device needs to be disassembled, and the disassembly efficiency is low, affecting the work efficiency of the user;

[0004] 2. The existing radiation shielding device does not have the function of internal circulation heat dissipation. Since the electron irradiation accelerator body is installed in a closed space, the heat generated by the electron irradiation accelerator body is likely to accumulate on its surface, thereby affecting the service life of the electron irradiation accelerator body. Summary of the Invention

[0005] The present invention provides a radiation shielding device for an electron irradiation accelerator chamber. One of the purposes is to have the function of convenient debugging to solve the problem that it is rather cumbersome to disassemble the radiation shielding device to debug the electron irradiation accelerator body; another purpose is to solve the problem that heat accumulation will affect the service life of the electron irradiation accelerator body, so as to achieve the effect of internal circulation heat dissipation for the electron irradiation accelerator body.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A radiation shielding device for an electron irradiation accelerator chamber includes a fixed sealed box and an electron irradiation accelerator body. A convenient debugging mechanism is arranged at the top of the fixed sealed box, and a closed heat dissipation mechanism is arranged on the right side of the fixed sealed box. The convenient debugging mechanism includes an observation tube. An inclined table is fixedly installed at the bottom of the inner cavity of the observation tube. A reflecting lens is fixedly installed on the right side of the inclined table. A main reflecting mirror is fixedly installed in the inner cavity of the observation tube. A supplementary light is fixedly installed on the right side of the main reflecting mirror. The closed heat dissipation mechanism includes an exchange tube. A first temperature exchange strip is fixedly welded on the outer wall of the exchange tube. A diffusion folding tube is fixedly installed on the outer wall of the exchange tube. One end of the diffusion folding tube extends into the inner cavity of a cooling tube and is fixedly connected to an absorption cover.

[0008] A further improvement of the technical solution of the present invention lies in that: the convenient debugging mechanism further includes an electric push rod and an embedding groove. The electric push rod is fixedly installed on the top of the fixed sealing box. A fixed box body is fixedly installed at the moving end of the electric push rod. A first stepping motor is fixedly installed on the right side of the inner cavity of the fixed box body. The output shaft of the first stepping motor extends to the left side of the fixed box body and is fixedly connected with a receiving block. A moving sealing plate is fixedly installed at the bottom of the receiving block. An extension frame is fixedly welded on the right side of the moving sealing plate. The embedding groove is opened on the left side of the fixed sealing box. The outer wall of the extension frame is movably connected with the inner cavity of the embedding groove.

[0009] A further improvement of the technical solution of the present invention lies in that: a second stepping motor is fixedly installed on the left side of the moving sealing plate. The output shaft of the second stepping motor extends into the inside of the moving sealing plate and is fixedly connected with a lead rod. A movable closing block is fixedly welded on the outer wall of the lead rod. The observation cylinder is fixedly installed on the left side of the moving sealing plate. The top of the observation cylinder is fixedly connected with a vertical cylinder. An imaging plane mirror is fixedly installed in the inner cavity of the vertical cylinder. The top of the vertical cylinder is fixedly connected with a sponge gasket ring. The top of the sponge gasket ring is fixedly connected with a silica gel gasket ring.

[0010] A further improvement of the technical solution of the present invention lies in that: the closed heat dissipation mechanism further includes a lifting frame, a blowing serpentine groove, a suction serpentine groove, a shunt cover and a refrigeration box. The lifting frame is fixedly installed on the bottom of the inner cavity of the fixed sealing box. An installation mesh plate is fixedly installed on the top of the lifting frame. The electron irradiation accelerator body is detachably connected to the top of the installation mesh plate. The blowing serpentine groove is opened on the bottom of the inner cavity of the fixed sealing box. The suction serpentine groove is opened on the top of the inner cavity of the fixed sealing box. The shunt cover is fixedly connected to the top and bottom of the inner cavity of the fixed sealing box.

[0011] A further improvement of the technical solution of the present invention lies in that: the refrigeration box is fixedly installed on the right side of the fixed sealing box. A suction fan is fixedly installed on the top of the refrigeration box. The air inlet pipe of the suction fan is fixedly connected to the top of the fixed sealing box. The bottom of the refrigeration box is fixedly connected with a circulating transfer air pipe. The end of the circulating transfer air pipe far away from the refrigeration box is fixedly connected to the bottom of the fixed sealing box. The air outlet pipe of the suction fan extends into the inner cavity of the refrigeration box and is fixedly connected with a cooling pipe. The bottom of the cooling pipe is fixedly connected with a bent pipe. The bottom of the bent pipe is fixedly connected with a filter pipeline.

[0012] A further improvement of the technical solution of the present invention lies in that: an electromagnet is arranged inside the filter pipeline. A connecting iron block is movably connected to the bottom of the electromagnet. A movable filter cylinder is fixedly installed at the bottom of the connecting iron block. The bottom of the movable filter cylinder is fixedly connected with a rubber pipe. The bottom of the rubber pipe is fixedly connected to the bottom of the inner cavity of the refrigeration box.

[0013] A further improvement of the technical solution of the present invention lies in that: fixed inner rings are fixedly welded in the inner cavities of the filtering pipeline and the movable filter cartridge. Disassembly rings are movably inserted on one side of the two adjacent fixed inner rings. A grille is fixedly installed in the inner cavity of the upper disassembly ring, and a fiber mesh is fixedly installed in the inner cavity of the lower disassembly ring.

[0014] A further improvement of the technical solution of the present invention lies in that: the other end of the diffusion folding pipe is fixedly connected to the outer wall of the exchange pipe. A second temperature exchange strip is fixedly welded on the outer wall of the diffusion folding pipe. The exchange pipe is fixedly installed in the inner cavity of the cooling pipe. The front and back of the exchange pipe are fixedly connected with shunt pipes. A circulating water refrigeration device body is fixedly installed on the right side of the refrigeration box. The water inlet end of the circulating water refrigeration device body is fixedly connected with a first circulating water pipe. The end of the first circulating water pipe away from the circulating water refrigeration device body is fixedly connected to the back of the shunt pipe located on the back. The water outlet end of the circulating water refrigeration device body is fixedly connected with a second circulating water pipe. The end of the second circulating water pipe away from the circulating water refrigeration device body is fixedly connected to the front of the shunt pipe located on the front.

[0015] A further improvement of the technical solution of the present invention lies in that: a raised strip is fixedly welded on the inner wall of the cooling pipe, and an aluminum foil heat insulation outer layer is fixedly connected to the outer wall of the cooling pipe.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present invention compared with the prior art is as follows:

[0017] 1. The present invention provides a radiation shielding device for an electron irradiation accelerator room. By combining an electric push rod, a first stepping motor, a movable sealing plate, an extension frame and an embedding groove, when the electric push rod is controlled to extend, the movable sealing plate can be horizontally moved to the left as a whole, and at the same time, the extension frame can be disengaged from the inner cavity of the embedding groove. Then, by controlling the first stepping motor to work, the receiving block is driven to rotate, and further the movable sealing plate rotates around the center of the side of the receiving block to the top of the fixed sealing box, so that the movable sealing plate completely disengages from the left side of the fixed sealing box. Then the user can debug the electron irradiation accelerator body in the inner cavity of the fixed sealing box, avoiding the problem of cumbersome disassembly of the shielding device and improving the convenience of the device.

[0018] 2. The present invention provides a radiation shielding device for an electron irradiation accelerator chamber, which combines a suction fan, a circulating water refrigeration device body, a cooling pipe, a blowing serpentine groove, a suction serpentine groove, a shunt pipe and an exchange pipe. By controlling the operation of the suction fan, the air in the inner cavity of the fixed sealing box can be driven to circulate internally through the inner cavities of the suction serpentine groove, the cooling pipe and the blowing serpentine groove. At the same time, by controlling the operation of the circulating water refrigeration device body, the coolant can be circulated through the inner cavities of the shunt pipe and the exchange pipe, so that the air in the inner cavity of the fixed sealing box exchanges heat with the coolant during the process of passing through the inner cavity of the cooling pipe, thereby reducing the temperature of the inner cavity of the fixed sealing box, realizing the function of internal circulation heat dissipation for the electron irradiation accelerator body, and prolonging the service life of the electron irradiation accelerator body.

[0019] 3. The present invention provides a radiation shielding device for an electron irradiation accelerator chamber, which combines a second stepping motor, a movable sealing block, an observation cylinder, a main reflecting mirror, reflecting lenses and an imaging flat mirror. By controlling the operation of the second stepping motor, the movable sealing block is urged to rotate around the center of the side of the lead rod, so that the movable sealing block disengages from the right side of the observation cylinder. Then, by controlling the operation of the supplementary light, the inner cavity of the fixed sealing box can be illuminated. Through the main reflecting mirror, the reflecting lenses and the imaging flat mirror, the picture in the inner cavity of the fixed sealing box can be refracted to the top of the vertical cylinder, and the user can then observe the picture in the inner cavity of the fixed sealing box through the top of the imaging flat mirror, and can observe the electron irradiation accelerator body in the inner cavity of the fixed sealing box without removing the movable sealing plate, which is convenient for the user to quickly carry out the debugging work and improve the work efficiency of the user.

[0020] 4. The present invention provides a radiation shielding device for an electron irradiation accelerator chamber, which combines a grille, a fiber mesh, a movable filter cartridge and an electromagnet. Through the design of the grille, the floating flocs in the circulating air in the inner cavity of the fixed sealing box can be captured. Through the design of the fiber mesh, the fine dust in the circulating air in the inner cavity of the fixed sealing box can be filtered, so as to improve the cleanliness of the air in the inner cavity of the fixed sealing box and further ensure the safety of the electron irradiation accelerator body. By controlling the power-off of the electromagnet, the adsorption force of the electromagnet on the connecting iron block is lost, and the connecting iron block will fall under the influence of gravity, that is, the connection between the movable filter cartridge and the filter pipe is released. Then, the disassembly ring can be pulled out from the fixed inner ring, and then the grille or the fiber mesh can be cleaned, which is convenient for subsequent maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is a schematic internal structural diagram of the fixed sealing box of the present invention;

[0023] Figure 3Schematic cross-sectional structure diagram of the movable sealing plate of the present invention;

[0024] Figure 4 Schematic internal structure diagram of the observation tube of the present invention;

[0025] Figure 5 Schematic internal structure diagram of the refrigeration box of the present invention;

[0026] Figure 6 Schematic internal structure diagram of the filter pipeline of the present invention;

[0027] Figure 7 Schematic cross-sectional structure diagram of the cooling pipe of the present invention;

[0028] Figure 8 Schematic cross-sectional structure diagram of the exchange pipe of the present invention.

[0029] In the figure: 1, fixed sealing box;

[0030] 2, convenient debugging mechanism; 21, electric push rod; 22, fixed box body; 23, first stepping motor; 24, receiving block; 25, movable sealing plate; 251, second stepping motor; 252, lead rod; 253, movable closing block; 254, observation tube; 2541, inclined platform; 2542, reflecting lens; 2543, vertical tube; 2544, imaging plane mirror; 2545, sponge gasket ring; 2546, silicone gasket ring; 2547, main reflecting mirror; 2548, supplementary light; 26, extension frame; 27, embedding groove;

[0031] 3, closed heat dissipation mechanism; 31, elevation frame; 32, installation mesh plate; 33, blowing serpentine groove; 34, suction serpentine groove; 35, shunt cover; 36, refrigeration box; 361, suction fan; 362, cooling pipe; 3621, aluminum foil heat insulation outer layer; 3622, raised strip; 3623, shunt pipe; 3624, exchange pipe; 3625, first temperature exchange strip; 3626, diffusion folding pipe; 3627, absorption cover; 3628, second temperature exchange strip; 363, bent pipe; 364, filter pipeline; 3641, electromagnet; 3642, connecting iron block; 3643, movable filter cartridge; 3644, fixed inner ring; 3645, disassembly ring; 3646, grille net; 3647, fiber net; 365, rubber pipe; 366, circulating water refrigeration device body. Detailed implementation manners

[0032] The present invention will be further described in detail below with reference to the embodiments:

[0033] Embodiment 1

[0034] As Figure 1-8As shown in the figure, the present invention provides a radiation shielding device for an electron irradiation accelerator chamber, including a fixed sealed box 1 and an electron irradiation accelerator body. A convenient debugging mechanism 2 is provided at the top of the fixed sealed box 1, and a closed heat dissipation mechanism 3 is provided on the right side of the fixed sealed box 1. The convenient debugging mechanism 2 includes an observation tube 254. At the bottom of the inner cavity of the observation tube 254, an inclined table 2541 is fixedly installed. On the right side of the inclined table 2541, a reflecting lens 2542 is fixedly installed. In the inner cavity of the observation tube 254, a main reflecting mirror 2547 is fixedly installed. On the right side of the main reflecting mirror 2547, a supplementary light 2548 is fixedly installed. The closed heat dissipation mechanism 3 includes an exchange tube 3624. On the outer wall of the exchange tube 3624, a first temperature exchange strip 3625 is fixedly welded. On the outer wall of the exchange tube 3624, a diffusion folding tube 3626 is fixedly installed. One end of the diffusion folding tube 3626 extends into the inner cavity of the cooling tube 362 and is fixedly connected to an absorption cover 3627.

[0035] The material of the fixed sealed box 1 is set to lead. By controlling the operation of the supplementary light 2548, the inner cavity of the fixed sealed box 1 can be illuminated. Through the main reflecting mirror 2547 and the reflecting lens 2542, the picture in the inner cavity of the fixed sealed box 1 can be refracted to the top of the inclined table 2541. Then, the user can observe the picture in the inner cavity of the fixed sealed box 1 through the top of the inclined table 2541. Through the design of the absorption cover 3627, part of the coolant can flow through the inner cavity of the diffusion folding tube 3626. Through the design of the first temperature exchange strip 3625, the rate of cooling of the inner circulation air is accelerated.

[0036] Embodiment 2

[0037] As Figure 1-8 shown, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, the convenient debugging mechanism 2 further includes an electric push rod 21 and an embedding groove 27. The electric push rod 21 is fixedly installed on the top of the fixed sealed box 1. The moving end of the electric push rod 21 is fixedly installed with a fixed box body 22. On the right side of the inner cavity of the fixed box body 22, a first stepping motor 23 is fixedly installed. The output shaft of the first stepping motor 23 extends to the left side of the fixed box body 22 and is fixedly connected to a receiving block 24. At the bottom of the receiving block 24, a moving sealing plate 25 is fixedly installed. On the right side of the moving sealing plate 25, an extension frame 26 is fixedly welded. The embedding groove 27 is opened on the left side of the fixed sealed box 1. The outer wall of the extension frame 26 is movably connected to the inner cavity of the embedding groove 27.

[0038] A second stepping motor 251 is fixedly installed on the left side of the movable sealing plate 25. The output shaft of the second stepping motor 251 extends into the interior of the movable sealing plate 25 and is fixedly connected to a lead rod 252. An active closing block 253 is fixedly welded to the outer wall of the lead rod 252. An observation cylinder 254 is fixedly installed on the left side of the movable sealing plate 25. The top of the observation cylinder 254 is fixedly connected to a vertical cylinder 2543. An imaging plane mirror 2544 is fixedly installed in the inner cavity of the vertical cylinder 2543. The top of the vertical cylinder 2543 is fixedly connected to a sponge gasket ring 2545. The top of the sponge gasket ring 2545 is fixedly connected to a silica gel gasket ring 2546.

[0039] The materials of the movable sealing plate 25 and the extension frame 26 are both set to lead. Control the second stepping motor 251 to work, so that the active closing block 253 rotates around the center of the side of the lead rod 252, causing the active closing block 253 to disengage from the right side of the observation cylinder 254. Through the cooperation of the sponge gasket ring 2545 and the silica gel gasket ring 2546, the softness of the top of the vertical cylinder 2543 is improved, and the comfort of the user during observation is increased. Control the electric push rod 21 to extend, so that the whole movable sealing plate 25 can move horizontally to the left, and at the same time make the extension frame 26 disengage from the inner cavity of the embedding groove 27. Then control the first stepping motor 23 to work, drive the receiving block 24 to rotate, and further make the movable sealing plate 25 rotate around the center of the side of the receiving block 24 to the top of the fixed sealing box 1, causing the movable sealing plate 25 to completely disengage from the left side of the fixed sealing box 1. The user can then debug the electron irradiation accelerator body in the inner cavity of the fixed sealing box 1.

[0040] Embodiment 3

[0041] As Figure 1-8 shown, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, the closed heat dissipation mechanism 3 further includes a lifting frame 31, a blowing serpentine groove 33, a suction serpentine groove 34, a shunt cover 35 and a refrigeration box 36. The lifting frame 31 is fixedly installed at the bottom of the inner cavity of the fixed sealing box 1. The top of the lifting frame 31 is fixedly installed with a mounting mesh plate 32. The electron irradiation accelerator body is detachably connected to the top of the mounting mesh plate 32. The blowing serpentine groove 33 is opened at the bottom of the inner cavity of the fixed sealing box 1. The suction serpentine groove 34 is opened at the top of the inner cavity of the fixed sealing box 1. The shunt cover 35 is fixedly connected to the top and bottom of the inner cavity of the fixed sealing box 1.

[0042] The refrigeration box 36 is fixedly installed on the right side of the fixed sealed box 1. A suction fan 361 is fixedly installed on the top of the refrigeration box 36. By controlling the operation of the suction fan 361, the air in the inner cavity of the fixed sealed box 1 can be driven to circulate internally through the inner cavities of the air suction serpentine groove 34, the cooling pipe 362, and the air blowing serpentine groove 33. The air inlet pipe of the suction fan 361 is fixedly connected to the top of the fixed sealed box 1. The bottom of the refrigeration box 36 is fixedly connected with a circulation transfer air pipe, and one end of the circulation transfer air pipe away from the refrigeration box 36 is fixedly connected to the bottom of the fixed sealed box 1. The air outlet pipe of the suction fan 361 extends into the inner cavity of the refrigeration box 36 and is fixedly connected with a cooling pipe 362. The bottom of the cooling pipe 362 is fixedly connected with a bent pipe 363, and the bottom of the bent pipe 363 is fixedly connected with a filter pipe 364.

[0043] An electromagnet 3641 is arranged inside the filter pipe 364. A connecting iron block 3642 is movably connected to the bottom of the electromagnet 3641. A movable filter cartridge 3643 is fixedly installed at the bottom of the connecting iron block 3642. The bottom of the movable filter cartridge 3643 is fixedly connected with a rubber pipe 365, and the bottom of the rubber pipe 365 is fixedly connected to the bottom of the inner cavity of the refrigeration box 36.

[0044] Fixed inner rings 3644 are fixedly welded in the inner cavities of the filter pipe 364 and the movable filter cartridge 3643. Demountable rings 3645 are movably inserted into the adjacent sides of the two fixed inner rings 3644. A grille 3646 is fixedly installed in the inner cavity of the demountable ring 3645 located above, and a fiber mesh 3647 is fixedly installed in the inner cavity of the demountable ring 3645 located below.

[0045] Through the design of the turning shapes of the air blowing serpentine groove 33 and the air suction serpentine groove 34, the penetration amount of radiation during heat dissipation is reduced, further ensuring the safety of the electron irradiation accelerator body inside the fixed sealed box 1. Through the design of the grille 3646, the floating flocs inside the circulating air in the inner cavity of the fixed sealed box 1 can be captured. Through the design of the fiber mesh 3647, the fine dust inside the circulating air in the inner cavity of the fixed sealed box 1 can be filtered to improve the cleanliness of the air in the inner cavity of the fixed sealed box 1 and further ensure the safety of the electron irradiation accelerator body. Control the electromagnet 3641 to cut off the power, so that the electromagnet 3641 loses the adsorption force on the connecting iron block 3642, and the connecting iron block 3642 will fall under the influence of gravity, that is, the connection between the movable filter cartridge 3643 and the filter pipe 364 is released. Then the demountable ring 3645 can be pulled out from the fixed inner ring 3644, and then the grille 3646 or the fiber mesh 3647 can be cleaned, which is convenient for subsequent maintenance work.

[0046] Embodiment 4

[0047] As Figure 1-8As shown, on the basis of Embodiment 3, the present invention provides a technical solution: Preferably, the other end of the diffusion folding tube 3626 is fixedly connected to the outer wall of the exchange tube 3624. A second temperature exchange strip 3628 is fixedly welded on the outer wall of the diffusion folding tube 3626. The exchange tube 3624 is fixedly installed in the inner cavity of the cooling tube 362. Both the front and back of the exchange tube 3624 are fixedly connected with shunt tubes 3623. A circulating water refrigeration device body 366 is fixedly installed on the right side of the refrigeration box 36. The water inlet end of the circulating water refrigeration device body 366 is fixedly connected with a first circulating water pipe. One end of the first circulating water pipe away from the circulating water refrigeration device body 366 is fixedly connected to the back of the shunt tube 3623 located on the back. The water outlet end of the circulating water refrigeration device body 366 is fixedly connected with a second circulating water pipe. One end of the second circulating water pipe away from the circulating water refrigeration device body 366 is fixedly connected to the front of the shunt tube 3623 located on the front.

[0048] A raised strip 3622 is fixedly welded on the inner wall of the cooling tube 362. An aluminum foil heat insulation outer layer 3621 is fixedly connected to the outer wall of the cooling tube 362. By controlling the operation of the circulating water refrigeration device body 366, the coolant can be circulated through the inner cavities of the shunt tube 3623 and the exchange tube 3624. Through the design of the raised strip 3622, the contact rate between the air and the outer wall of the exchange tube 3624 is increased.

[0049] Next, the working principle of the radiation shielding device for the electron irradiation accelerator room will be specifically described.

[0050] As Figure 1-8As shown in the figure, during use, the electron irradiation accelerator body is installed on the top of the installation mesh plate 32. Then, control the first stepping motor 23 to work, rotate and move the movable sealing plate 25 and the extension frame 26 so that the center points of their sides are moved to the same horizontal line as the center point of the side of the embedding groove 27. Then, control the electric push rod 21 to contract, and the movable sealing plate 25 can be closed on the left side of the fixed sealing box 1 to complete the shielding of radiation. If it is necessary to quickly observe the state of the electron irradiation accelerator body, control the second stepping motor 251 to work so that the movable closing block 253 disengages from the right side of the observation cylinder 254. Then, control the supplementary light 2548 to work to supplement light to the inner cavity of the fixed sealing box 1. Subsequently, through the refraction of the reflection lens 2542, the main reflector 2547, and the vertical cylinder 2543, the state in the inner cavity of the fixed sealing box 1 can be observed from the top of the imaging plane mirror 2544. During the continuous operation of the electron irradiation accelerator body, control the suction fan 361 to work to drive the air in the inner cavity of the fixed sealing box 1 to circulate internally through the inner cavity of the cooling pipe 362. At the same time, control the circulating water refrigeration device body 366 to work to drive the coolant to circulate through the inner cavity of the exchange pipe 3624. The air and the coolant will complete heat exchange in the inner cavity of the cooling pipe 362, that is, the function of internal circulation heat dissipation for the electron irradiation accelerator body is realized, ensuring the safety of the electron irradiation accelerator body.

[0051] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An electron irradiation accelerator room radiation shielding device, comprising a fixed sealed box (1) and an electron irradiation accelerator body, characterized in that: A convenient debugging mechanism (2) is provided at the top of the fixed sealed box (1), and a closed heat dissipation mechanism (3) is provided on the right side of the fixed sealed box (1). The convenient debugging mechanism (2) includes an observation tube (254). At the bottom of the inner cavity of the observation tube (254), an inclined table (2541) is fixedly installed. A reflecting lens (2542) is fixedly installed on the right side of the inclined table (2541). A main reflecting mirror (2547) is fixedly installed in the inner cavity of the observation tube (254). A supplementary light (2548) is fixedly installed on the right side of the main reflecting mirror (2547). The closed heat dissipation mechanism (3) includes an exchange tube (3624). A first temperature exchange strip (3625) is fixedly welded on the outer wall of the exchange tube (3624). A diffusion folding tube (3626) is fixedly installed on the outer wall of the exchange tube (3624). One end of the diffusion folding tube (3626) extends into the inner cavity of a cooling tube (362) and is fixedly connected to an absorption cover (3627); The convenient debugging mechanism (2) further includes an electric push rod (21) and an embedding groove (27). The electric push rod (21) is fixedly installed on the top of the fixed sealed box (1). A fixed box body (22) is fixedly installed at the moving end of the electric push rod (21). A first stepping motor (23) is fixedly installed on the right side of the inner cavity of the fixed box body (22). The output shaft of the first stepping motor (23) extends to the left side of the fixed box body (22) and is fixedly connected to a receiving block (24). A moving sealing plate (25) is fixedly installed at the bottom of the receiving block (24). An extension frame (26) is fixedly welded on the right side of the moving sealing plate (25). The embedding groove (27) is opened on the left side of the fixed sealed box (1). The outer wall of the extension frame (26) is movably connected to the inner cavity of the embedding groove (27); A second stepping motor (251) is fixedly installed on the left side of the moving sealing plate (25). The output shaft of the second stepping motor (251) extends into the interior of the moving sealing plate (25) and is fixedly connected to a lead rod (252). A movable closing block (253) is fixedly welded on the outer wall of the lead rod (252). The observation tube (254) is fixedly installed on the left side of the moving sealing plate (25). A vertical tube (2543) is fixedly connected to the top of the observation tube (254). An imaging plane mirror (2544) is fixedly installed in the inner cavity of the vertical tube (2543). A sponge cushion ring (2545) is fixedly connected to the top of the vertical tube (2543). A silica gel cushion ring (2546) is fixedly connected to the top of the sponge cushion ring (2545).

2. The radiation shielding device for an electron irradiation accelerator room according to claim 1, wherein: The enclosed heat dissipation mechanism (3) further includes a lifting frame (31), a blowing serpentine groove (33), a suction serpentine groove (34), a flow dividing cover (35) and a refrigeration box (36). The lifting frame (31) is fixedly installed at the bottom of the inner cavity of the fixed sealed box (1). The top of the lifting frame (31) is fixedly installed with a mounting mesh plate (32). The electron irradiation accelerator body is detachably connected to the top of the mounting mesh plate (32). The blowing serpentine groove (33) is opened at the bottom of the inner cavity of the fixed sealed box (1). The suction serpentine groove (34) is opened at the top of the inner cavity of the fixed sealed box (1). The flow dividing cover (35) is fixedly connected to the top and bottom of the inner cavity of the fixed sealed box (1).

3. The radiation shielding device for an electron irradiation accelerator room according to claim 2, characterized in that: The refrigeration box (36) is fixedly installed on the right side of the fixed sealed box (1). A suction fan (361) is fixedly installed on the top of the refrigeration box (36). The air inlet pipe of the suction fan (361) is fixedly connected to the top of the fixed sealed box (1). The bottom of the refrigeration box (36) is fixedly connected with a circulating transfer air duct. One end of the circulating transfer air duct away from the refrigeration box (36) is fixedly connected to the bottom of the fixed sealed box (1). The air outlet pipe of the suction fan (361) extends into the inner cavity of the refrigeration box (36) and is fixedly connected with a cooling pipe (362). The bottom of the cooling pipe (362) is fixedly connected with a bent pipe (363). The bottom of the bent pipe (363) is fixedly connected with a filter pipeline (364).

4. An electron irradiation accelerator room radiation shielding device according to claim 3, characterized in that: An electromagnet (3641) is arranged inside the filter pipeline (364). A connecting iron block (3642) is movably connected to the bottom of the electromagnet (3641). A movable filter cartridge (3643) is fixedly installed at the bottom of the connecting iron block (3642). The bottom of the movable filter cartridge (3643) is fixedly connected with a rubber pipe (365). The bottom of the rubber pipe (365) is fixedly connected to the bottom of the inner cavity of the refrigeration box (36).

5. An electron irradiation accelerator room radiation shielding device according to claim 4, characterized in that: Fixed inner rings (3644) are fixedly welded inside the filter pipeline (364) and the inner cavity of the movable filter cartridge (3643). Demountable rings (3645) are movably inserted into the adjacent sides of the two fixed inner rings (3644). A grille mesh (3646) is fixedly installed inside the demountable ring (3645) at the upper side. A fiber mesh (3647) is fixedly installed inside the demountable ring (3645) at the lower side.

6. The radiation shielding device for an electron irradiation accelerator room according to claim 5, characterized in that: The other end of the diffusion folding tube (3626) is fixedly connected to the outer wall of the exchange tube (3624). A second temperature exchange strip (3628) is fixedly welded on the outer wall of the diffusion folding tube (3626). The exchange tube (3624) is fixedly installed in the inner cavity of the cooling tube (362). Flow dividing tubes (3623) are fixedly connected to the front and back of the exchange tube (3624). A circulating water refrigeration device body (366) is fixedly installed on the right side of the refrigeration box (36). The water inlet end of the circulating water refrigeration device body (366) is fixedly connected to a first circulating water pipe. The end of the first circulating water pipe away from the circulating water refrigeration device body (366) is fixedly connected to the back of the flow dividing tube (3623) located on the back. The water outlet end of the circulating water refrigeration device body (366) is fixedly connected to a second circulating water pipe. The end of the second circulating water pipe away from the circulating water refrigeration device body (366) is fixedly connected to the front of the flow dividing tube (3623) located on the front.

7. The radiation shielding device for an electron irradiation accelerator room according to claim 3, wherein: A raised strip (3622) is fixedly welded on the inner wall of the cooling tube (362). An aluminum foil heat preservation outer layer (3621) is fixedly connected to the outer wall of the cooling tube (362).

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