Shielded chamber, irradiation processing equipment and assembling method
By creating installation and auxiliary channels in the bottom wall of the main unit room, the problem of increased shielding material during accelerator assembly was solved, achieving the effects of reducing construction costs and improving space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-03-13
AI Technical Summary
When assembling the accelerator, the height of the main unit room is greater than the total length of the accelerator tube and the support frame, which leads to an increase in shielding material and construction costs.
Installation holes and auxiliary holes are formed on the bottom wall of the main unit room, allowing the support to pass through the auxiliary holes and be supported on the bottom wall of the irradiation chamber. The acceleration tube is inserted into the support from top to bottom. The height of the irradiation chamber is used to reduce the height occupied by the support in the main unit room, thereby reducing the space volume and material usage of the main unit room.
This reduced the construction cost of the shielded room and improved the space utilization of the main unit room, while also reducing the need for redesigning the accelerator structure.
Smart Images
Figure CN121665525A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of irradiation processing technology, and in particular to a shielded room, irradiation processing equipment and assembly method. Background Technology
[0002] Irradiation processing is a processing method that uses radiation to irradiate materials to produce physical, chemical, and biological effects, thereby processing the materials.
[0003] The accelerator is installed in the main unit room of the shielded room. During the assembly process, the accelerator tube needs to be installed into the bracket from above. This makes the height of the main unit room greater than the total length of the accelerator tube and the bracket, which leads to an increase in the shielding material surrounding the main unit room and an increase in the construction cost of the shielded room. Summary of the Invention
[0004] This application provides a shielded room, irradiation processing equipment, and assembly method, which can reduce the construction cost of the shielded room.
[0005] The technical solution of this application embodiment is implemented as follows: One embodiment of this application provides a shielding chamber for shielding radiation generated by an accelerator. The accelerator body includes an accelerating tube, three sets of solenoid coils, and a support. The three sets of solenoid coils are installed coaxially within the support along the height direction of the accelerator body. The accelerating tube passes through the three sets of solenoid coils and is installed within the support. The shielding chamber forms a main unit chamber and an irradiation chamber. The main unit chamber is located above the irradiation chamber. The bottom wall of the main unit chamber has an auxiliary channel and an installation channel. Both the installation channel and the auxiliary channel connect the main unit chamber and the irradiation chamber. The installation channel is used to install the accelerator body. The support can pass through the auxiliary channel and be supported on the bottom wall of the irradiation chamber.
[0006] In one embodiment, the mounting channel includes a first channel and a second channel that are interconnected. The first channel connects to the main unit chamber, and the second channel connects to the irradiation chamber, wherein the diameter of the second channel is larger than the diameter of the first channel.
[0007] In one embodiment, the shielding room includes a partition wall and a floor slab. The partition wall forms a receiving chamber, and the floor slab is disposed in the receiving chamber to divide the receiving chamber into the main unit chamber and the irradiation chamber in a vertical direction. The mounting channel and the auxiliary channel are disposed in the floor slab.
[0008] In one embodiment, the height of the irradiation chamber is between 2 m and 2.5 m; and / or, The thickness of the floor slab is between 1.5 m and 3 m.
[0009] In one embodiment, the main unit room is provided with a movable hoisting mechanism for hoisting the acceleration tube, the accelerator body, and the support.
[0010] In one embodiment, the accelerator is a 10 MeV industrial irradiation processing electron linear accelerator.
[0011] In one embodiment, the shielding chamber includes a protective panel for opening and closing the auxiliary passage.
[0012] Another aspect of this application provides an irradiation processing apparatus, including the shielding chamber described in any of the above embodiments.
[0013] In another aspect, this application provides an assembly method utilizing the shielding chamber in any of the above embodiments, the assembly method comprising: The support frame is hoisted from the main unit room to the bottom wall of the irradiation chamber through the auxiliary channel; The accelerator tube is hoisted into the bracket and fixed in place. The accelerator body is hoisted into the mounting channel of the main unit room.
[0014] In one embodiment, the assembly method includes, before hoisting the accelerator body from the main unit room through the auxiliary duct to the bottom wall of the irradiation chamber: Assemble the bracket through the mounting holes.
[0015] This application provides a shielded room, irradiation processing equipment, and assembly method. By forming mounting holes and auxiliary holes in the bottom wall of the main accelerator room, the support can be passed through the auxiliary holes and supported on the bottom wall of the irradiation room during the assembly of the accelerator body. This utilizes the height of the irradiation room and reduces the height occupied by the support in the main accelerator room. Then, the accelerator tube is inserted into the support from top to bottom, and finally, the assembled accelerator body is installed into the mounting holes. In this way, on the one hand, the height of the main accelerator room can be reduced, thereby reducing the amount of shielding material required to surround the main accelerator room and thus reducing the construction cost of the shielded room. On the other hand, since the accelerator body is not disassembled after assembly, and this application uses auxiliary holes to utilize the space of the irradiation room for assembly, the space volume of the main accelerator room can be reduced, thereby improving the space utilization rate of the main accelerator room. Furthermore, the design of the auxiliary holes eliminates the need to redesign the accelerator structure, thus reducing design costs. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an irradiation processing device provided in an embodiment of this application; Figure 2A schematic diagram of the structure of the enclosure and accelerator provided in another embodiment of this application; Figure 3 This is a schematic diagram of the structure of an accelerator tube provided in another embodiment of this application; Figure 4 A schematic diagram of the shielding room, accelerator body, and hoisting mechanism provided in yet another embodiment of this application; Figure 5 This is a flowchart illustrating an assembly method provided in another embodiment of this application.
[0017] Explanation of reference numerals in the attached figures 100. Irradiation processing equipment; 1. Shielding room; 1a. Main unit room; 1a1. Auxiliary duct; 1a2. Installation duct; 1a21. First duct; 1a22. Second duct; 1b. Irradiation room; 11. Enclosure; 12. Floor; 2. Accelerator; 21. Accelerator body; 211. Support frame; 212. Accelerator tube; 3. Lifting mechanism; 31. Moving track; 32. Crane; 321. Cableway; 322. Hook. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0019] In the following description, reference is made to "an embodiment," which describes a subset of all possible embodiments. However, it is understood that "an embodiment" may be the same subset or a different subset of all possible embodiments and may be combined with each other without conflict.
[0020] In the following description, the terms "first" and "second" are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first" and "second" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.
[0021] One embodiment of this application provides a shielding room 1 for shielding radiation generated by an accelerator 2. Please refer to [link to relevant documentation]. Figures 1 to 4The accelerator body 21 includes an accelerating tube 212, three sets of solenoid coils, and a support 211. The three sets of solenoid coils are installed in the support 211 along the height direction of the accelerator body 21 and are coaxially arranged. The accelerating tube 212 passes through the three sets of solenoid coils and is installed in the support 211. The shielding chamber 1 forms a main unit chamber 1a and an irradiation chamber 1b. The main unit chamber 1a is located above the irradiation chamber 1b. The bottom wall of the main unit chamber 1a has an auxiliary channel 1a1 and an installation channel 1a2. The installation channel 1a2 and the auxiliary channel 1a1 are both connected to the main unit chamber 1a and the irradiation chamber 1b. The installation channel 1a2 is used to install the accelerator body 21. The support 211 can pass through the auxiliary channel 1a1 and be supported on the bottom wall of the irradiation chamber 1b.
[0022] The main unit room 1a refers to the space used for installing and operating the accelerator 2.
[0023] Irradiation chamber 1b refers to the space used for irradiation processing.
[0024] For example, accelerator 2 includes accelerator body 21.
[0025] Two of the three sets of solenoid coils can be stacked along the height of the accelerator body, and the remaining one can be located at the bottom with intervals. The three sets of solenoid coils are coaxially arranged along the height of the accelerator body.
[0026] The reason why the mounting channel 1a2 can support the accelerator body 21 is that the accelerator body 21 needs to be precisely adjusted to be level after installation. The periphery of the mounting channel 1a2 has been flattened and positioning holes are provided around it, thus facilitating the stable installation of the bracket 211.
[0027] The shielding chamber 1 provided in this application, by forming an installation channel 1a2 and an auxiliary channel 1a1 on the bottom wall of the main unit chamber 1a, allows the support 211 to pass through the auxiliary channel 1a1 and be supported on the bottom wall of the irradiation chamber 1b during the assembly of the accelerator body 21. This utilizes the height of the irradiation chamber 1b to reduce the height occupied by the support 211 in the main unit chamber 1a. Then, the acceleration tube 212 is inserted into the support 211 from top to bottom. Finally, the assembled accelerator body 21 is installed into the installation channel 1a2. In this way, on the one hand, the height of the main unit chamber 1a can be reduced. The height dimension reduces the amount of shielding material required to enclose the main unit room 1a, thereby reducing the construction cost of the shielding room 1. On the other hand, since the accelerator body 21 is not disassembled after assembly, and this application utilizes the space of the irradiation chamber 1b for assembly through the auxiliary channel 1a1, the space volume of the main unit room 1a can be reduced, thereby improving the space utilization rate of the main unit room 1a. Furthermore, the design of the auxiliary channel 1a1 eliminates the need to redesign the structure of the accelerator 2, thus reducing design costs.
[0028] For example, the shielding material can be concrete and reinforced concrete structures.
[0029] In one embodiment, please refer to Figure 1 and Figure 4 The shielding room 1 includes a partition 11 and a floor 12. The partition 11 forms a receiving room, and the floor 12 is disposed in the receiving room to divide the receiving room into a main unit room 1a and an irradiation room 1b in the vertical direction. The mounting channel 1a2 and the auxiliary channel 1a1 are disposed in the floor 12.
[0030] For example, both the enclosure 11 and the floor slab 12 are constructed using shielding materials.
[0031] The shape of the containment chamber is roughly "convex". The floor slab 12 is located between the two openings of the "convex" chamber, so that the lower chamber is the irradiation chamber 1b and the upper chamber is the main unit chamber 1a. The volume of the main unit chamber 1a is smaller than the volume of the irradiation chamber 1b.
[0032] Here, when operators are inspecting or debugging the accelerator 2 in the main unit room 1a, the floor slab 12 can reduce the leakage of radiation from the irradiation room 1b to the main unit room 1a, thus reducing radiation damage to the operators.
[0033] In one embodiment, please refer to Figure 4 The installation channel 1a2 includes a first channel 1a21 and a second channel 1a22 that are interconnected. The first channel 1a21 is connected to the main unit chamber 1a, and the second channel 1a22 is connected to the irradiation chamber 1b. The diameter of the second channel 1a22 is larger than the diameter of the first channel 1a21.
[0034] For example, the projected shapes of the first channel 1a21 and the second channel 1a22 along the vertical direction can be circular or square, etc.
[0035] The first channel 1a21 is located above the second channel 1a22 and the diameter of the second channel 1a22 is larger than the diameter of the first channel 1a21, so that the shape of the installation channel 1a2 is roughly stepped.
[0036] In this way, the bracket 211 is installed at the first channel 1a21, and the other structures of the accelerator 2 can be installed in the irradiation chamber 1b through the second channel 1a22 at the tail end of the accelerator tube 212 inside the bracket 211. During installation, since the second channel 1a22 has a large diameter and is located on the top wall of the irradiation chamber 1b, it is convenient for the operator to install.
[0037] For example, in one embodiment, the height of the support 211 can be about 3 m, the length can be 1.06 m, and the width can be 0.8 m; the length of the auxiliary channel 1a1 can be 1.6 m and the width can be 1.2 m; the length of the first channel 1a21 is less than the length of the support 211, and the width is less than the width of the support 211. In this way, it can be ensured that the support 211 can pass through the auxiliary channel 1a1 and be supported on the bottom wall of the irradiation chamber 1b, while the support 211 can only be supported and installed on the periphery of the first channel 1a21.
[0038] In one embodiment, the height of the second channel 1a22 can be 0.4 m, and the length and width can both be 1.2 m. This not only facilitates operation by personnel but also facilitates the installation of the related structures of the accelerator 2.
[0039] In one embodiment, the height of the irradiation chamber 1b is between 2 m and 2.5 m.
[0040] For example, the height of irradiation chamber 1b can be 2 m, 2.1 m, 2.2 m, 2.3 m, 2.4 m or 2.5 m, etc., with the height of irradiation chamber 1b preferably being 2.2 m.
[0041] In this way, on the one hand, sufficient space can be provided for the transmission mechanism to process the irradiated items; on the other hand, by setting the irradiation chamber 1b at an appropriate height, both cost and the utilization of the installation space of the accelerator body 21 can be taken into account.
[0042] It should be noted that the height design of irradiation room 1b requires a trade-off between the utilization of installation space and cost, because the construction cost of irradiation room 1b is much greater than that of main unit room 1a. That is, if the height of irradiation room 1b is increased in order to facilitate installation, it will lead to an increase in the construction cost of irradiation room 1b.
[0043] In one embodiment, the thickness of the floor slab 12 is between 1.5 m and 3 m.
[0044] For example, the thickness of the floor slab 12 can be 1.5 m, 1.6 m, 1.7 m, 1.8 m, 1.9 m, 2 m, 2.1 m, 2.2 m, 2.3 m, 2.4 m, 2.5 m, 2.6 m, 2.7 m, 2.8 m, 2.9 m or 3 m, etc.
[0045] Specifically, the thickness of the preferred floor slab 12 is 1.7 m.
[0046] Here, by setting a suitable floor slab 12, not only can cost and installation space utilization be balanced, but the shielding effect can also be enhanced to reduce the leakage of radiation from the irradiation chamber 1b to the main unit chamber 1a.
[0047] It should be noted that the thickness of floor slab 12 is similar to the height design of irradiation chamber 1b, requiring a trade-off between the utilization of installation space and cost.
[0048] In one embodiment, the height of the irradiation chamber 1b is 2.2 m, and the thickness of the floor slab 12 is 1.7 m.
[0049] This effectively reduces the height of the main unit room 1a by 3.9 m, saving 262.67 m³ of shielding material, such as concrete, required to enclose the main unit room 1a. 3 .
[0050] In one embodiment, please refer to Figure 1 and Figure 4 The main unit room 1a is equipped with a movable hoisting mechanism 3 for hoisting the accelerator tube 212, the accelerator body 21 and the support 211.
[0051] For example, the hoisting mechanism 3 may include a moving track 31 and a crane 32. The moving track 31 may be set on the top wall of the main unit room 1a, and the crane 32 is slidably set on the moving track 31 and can move along the extension direction of the moving track 31 to hoist the accelerator 2, the accelerator body 21 and the support 211.
[0052] For example, the crane 32 is equipped with a hook 322 and a cableway 321, and the hook 322 can extend and retract in the vertical direction via the cableway 321.
[0053] Here, by setting up a movable hoisting mechanism 3 in the main unit room 1a, during the hoisting process, the operator only needs to operate on the bottom wall of the main unit room 1a, without having to operate on the accelerator main body 21 structure, thus improving the safety of the hoisting process.
[0054] In one embodiment, accelerator 2 is a 10 MeV industrial irradiation processing electron linear accelerator 2.
[0055] It should be noted that, according to the "Radiation Safety and Protection of Electron Accelerator 2 Irradiation Facility" (HJ979-2018), the dimensions of the main room 1a of the 10 MeV industrial irradiation processing electron linear accelerator 2 are 8.3 m in length, 5 m in width, and 8 m in height. The height of the main room 1a is designed to be 8 m to facilitate the on-site hoisting of the core component, the accelerating tube 212, in the 10 MeV working irradiation electron linear accelerator 2. Therefore, the height of the support 211 is approximately 3 m, and the height of the accelerating tube 212 is also approximately 3 m. Adding the dimensions of the hoisting mechanism 3, the design necessitates setting the height of the main room 1a to 8 m.
[0056] In this way, by designing the auxiliary channel 1a1, the height of the irradiation chamber 1b can be utilized to reduce the design height of the main unit room 1a, thereby reducing the amount of shielding material used to surround the main unit room 1a, which in turn reduces the construction cost of the shielding room 1 and improves the space utilization rate of the main unit room 1a.
[0057] In one embodiment, the shielding chamber 1 includes a protective plate for opening and closing auxiliary channels 1a1.
[0058] For example, the protective plate can be a steel plate.
[0059] Here, after the accelerator body 21 is installed, a protective plate can be placed over the auxiliary duct 1a1 to reduce the leakage of radiation into the main unit room 1a through the auxiliary duct 1a1, thereby reducing radiation damage to the operators; when the accelerator 2 needs to be inspected, the auxiliary duct 1a1 can be opened through the protective plate to utilize the space of the irradiation room 1b, which facilitates hoisting operations.
[0060] One embodiment of this application provides an irradiation processing apparatus 100, please refer to... Figures 1 to 4 , including the shielded room 1 described in any of the following.
[0061] For example, the irradiation processing equipment 100 includes an accelerator 2, which is disposed in a shielded chamber 1 to irradiate articles.
[0062] The irradiation processing equipment 100 provided in this application embodiment has the advantage of low construction cost based on the advantages of the shielding room 1 in the above embodiment.
[0063] In another aspect, this application provides an assembly method. Please refer to [link to relevant documentation]. Figure 5 Using the shielding chamber 1 in any of the above embodiments, the assembly method includes: S1. Hoist the bracket from the main unit room to the bottom wall of the irradiation chamber through the auxiliary channel; S2. Hoist the accelerator tube into the bracket and complete the fixed installation; S3. Hoist the accelerator body into the mounting duct of the main unit room.
[0064] For example, during the hoisting of the accelerator tube 212, the hoisting mechanism 3 of the main unit room 1a is used to place the bracket 211 horizontally on the bottom wall of the irradiation chamber 1b through the auxiliary channel 1a1. Then, the hoisting mechanism 3 is used to pass the accelerator tube 212 from the main unit room 1a through the auxiliary channel 1a1 through the three sets of solenoid coils in the bracket 211 and fix it in the bracket 211. Finally, the hoisting system is used to hoist the assembled accelerator body 21 into the installation channel 1a2 of the main unit room 1a.
[0065] Here, by adding auxiliary ducts 1a1 to the bottom wall of the main unit room 1a, the space of the irradiation chamber 1b can be utilized when assembling the accelerator body 21. This effectively reduces the height of the main unit room 1a, thereby reducing the amount of shielding material used to surround the main unit room 1a. This reduces construction costs and improves the space utilization of the main unit room 1a.
[0066] In one embodiment, S1, before hoisting the accelerator body from the main unit room through the auxiliary channel to the bottom wall of the irradiation chamber, the assembly method includes: S4. Assemble the bracket in the installation channel.
[0067] It should be noted that the assembly method of assembling outside the shielded room 1 and then transporting it into the shielded room 1 has several disadvantages. First, there is a limitation on the diameter of the inlet and outlet. Due to the curved design of the channel in the main unit room 1a, the assembled bracket 211 cannot be transported into the main unit room 1a. Second, during transportation, the three sets of solenoid coils and other devices inside the bracket 211 may shift, resulting in misalignment, which may cause the accelerator 2 to malfunction or even damage the accelerator 2.
[0068] Here, by utilizing the horizontal treatment at the mounting channel 1a2 and the positioning hole and other structures, the bracket 211 can be assembled smoothly, which facilitates the subsequent installation of the acceleration tube 212.
[0069] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, and improvements made within the spirit and scope of this application are included within the scope of protection of this application.
Claims
1. A shielding chamber for shielding radiation generated by an accelerator, the accelerator body comprising an accelerating tube, three sets of solenoid coils, and a support, the three sets of solenoid coils being installed coaxially within the support along the height direction of the accelerator body, the accelerating tube passing through the three sets of solenoid coils and installed within the support, characterized in that... The shielding chamber comprises a main unit chamber and an irradiation chamber. The main unit chamber is located above the irradiation chamber. The bottom wall of the main unit chamber has auxiliary channels and mounting channels. Both the mounting channels and the auxiliary channels connect the main unit chamber and the irradiation chamber. The mounting channels are used to install the accelerator body. The support can pass through the auxiliary channels and be supported on the bottom wall of the irradiation chamber.
2. The shielded room according to claim 1, characterized in that, The installation channel includes a first channel and a second channel that are interconnected. The first channel is connected to the main unit chamber, and the second channel is connected to the irradiation chamber. The diameter of the second channel is larger than the diameter of the first channel.
3. The shielded room according to claim 1, characterized in that, The shielding room includes a partition wall and a floor slab. The partition wall forms a receiving chamber, and the floor slab is disposed in the receiving chamber to divide the receiving chamber into the main unit room and the irradiation chamber in the vertical direction. The mounting channel and the auxiliary channel are disposed in the floor slab.
4. The shielded room according to claim 3, characterized in that, The height of the irradiation chamber is between 2 m and 2.5 m; and / or, The thickness of the floor slab is between 1.5 m and 3 m.
5. The shielded room according to claim 1, characterized in that, The main unit room is equipped with a movable hoisting mechanism for hoisting the acceleration tube, the accelerator body, and the support frame.
6. The shielded room according to claim 1, characterized in that, The accelerator is a 10 MeV industrial irradiation processing electron linear accelerator.
7. The shielded room according to claim 1, characterized in that, The shielding chamber includes a protective plate, which is used to open and close the auxiliary channel.
8. An irradiation processing apparatus, characterized in that, The shielded room includes any one of claims 1 to 7.
9. An assembly method utilizing the shielding chamber according to any one of claims 1 to 7, characterized in that, The assembly method includes: The support frame is hoisted from the main unit room to the bottom wall of the irradiation chamber through the auxiliary channel; The accelerator tube is hoisted into the bracket and fixed in place. The accelerator body is hoisted into the mounting channel of the main unit room.
10. The assembly method according to claim 9, characterized in that, The assembly method includes the following steps before hoisting the accelerator body from the main unit room through the auxiliary duct to the bottom wall of the irradiation chamber: Assemble the bracket through the mounting holes.