Disassembly device and disassembly method for fusion device maintenance window

Abstract

This invention relates to the field of nuclear fusion and discloses a dismantling device and method for a maintenance window of a fusion device. The dismantling device includes a first lifting mechanism, a second lifting mechanism, and a moving vehicle. The first lifting mechanism includes a ring rail, a guide rail, pulleys, a pulley adjusting component, and a lifting component. The ring rail is mounted on a Dewar base, the guide rail is located outside the ring rail and extends radially along the ring rail, the pulleys are slidably engaged with the guide rail, the pulley adjusting component is located on the guide rail, and the lifting component includes a drive unit and a first traction rope. The second lifting mechanism is located within the maintenance passage and includes a releasable or retractable second traction rope. The moving vehicle is located within the maintenance passage. This dismantling device for a fusion device can precisely control the removal of the maintenance window within a narrow maintenance passage, avoiding collisions between the flange cover and other components, and improving the safety and reliability of the maintenance window dismantling.

Description

Technical Field

[0001] This invention relates to the field of nuclear fusion technology, and in particular to a disassembly device and method for a fusion device maintenance window. Background Technology

[0002] Maintenance windows in fusion devices refer to physical passages pre-installed within the complex structures of fusion devices such as tokamaks. These passages allow for the entry and exit of materials, tools, and personnel between continuous operating cycles, and facilitate the inspection, maintenance, upgrading, or replacement of internal equipment. The design of maintenance windows must comprehensively consider structural strength, ease of access, and the maintainability of internal components. However, in compact fusion devices, the designed maintenance window flange covers are typically heavy, and the flanges require extremely high precision in installation and disassembly while ensuring a vacuum seal. Furthermore, the confined maintenance space further increases the operational difficulty. Therefore, there is an urgent need to propose a method for disassembling and assembling maintenance window flanges in fusion devices with compact spaces, aiming to achieve precise and efficient removal of the flanges. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to provide a disassembly device for a fusion device maintenance window, which can precisely control the removal of the maintenance window within a narrow maintenance passage, avoiding collisions between the flange cover and other components, and thus improving the safety and reliability of the maintenance window disassembly.

[0004] The present invention also aims to provide a method for disassembling a fusion device maintenance window, using the aforementioned disassembly device for a fusion device maintenance window.

[0005] According to an embodiment of the present invention, a dismantling device for a maintenance window of a fusion device is provided. The fusion device includes a maintenance window and a Dewar base. The maintenance window includes a window flange and a flange cover. The flange cover is installed on the window flange. The Dewar base is located above the maintenance window. A maintenance channel is provided in the bio-shield wall surrounding the fusion device. The maintenance channel is located on the side of the flange cover away from the window flange. The dismantling device includes: a first lifting mechanism, including a ring rail, a guide rail, a pulley, a pulley adjustment component, and a lifting component. The ring rail is located on the Dewar base. The guide rail is located outside the ring rail and extends radially along the ring rail. The pulley is slidably engaged on the guide rail. The pulley adjustment component is located on the guide rail and drives the pulley to move along the length direction of the guide rail. The lifting component includes a drive unit and a first traction rope. The drive unit is slidably engaged on the ring rail and can release or retract the first traction rope. The first traction rope is wound around the pulley. A second lifting mechanism is located within the maintenance channel and includes a releaseable or retractable second traction rope. A moving vehicle is located within the maintenance channel.

[0006] According to an embodiment of the present invention, the dismantling device for the maintenance window of a fusion device can remove the flange cover from the window flange by sequentially cooperating and lifting a first lifting mechanism, a second lifting mechanism, and a mobile vehicle. The flange cover can be adjusted in a narrow maintenance channel and then safely transported out of the maintenance channel by the mobile vehicle. This effectively avoids the operational difficulties, low efficiency, and potential collision risks caused by space limitations in traditional dismantling methods, achieving efficient dismantling of the maintenance window and improving the safety and reliability of the dismantling operation of the fusion device maintenance window dismantling device.

[0007] In some embodiments of the present invention, the pulley includes a pulley body and a pulley seat, the pulley seat is slidably disposed on the guide rail along the extension direction of the guide rail, and the pulley body is disposed at the bottom of the pulley seat.

[0008] In some embodiments of the present invention, the pulley adjusting member is a telescopic member and is disposed on the upper side of the guide rail, and the telescopic end of the pulley adjusting member is connected to the pulley seat.

[0009] In some embodiments of the present invention, the driving unit includes a movable seat, a locking mechanism and a driving mechanism. The movable seat is slidably disposed on the ring rail. The locking mechanism is disposed on the movable seat and can be locked or unlocked from the ring rail. The driving mechanism is disposed on the movable seat and connected to the first traction rope.

[0010] In some embodiments of the present invention, the cross-section of the ring rail is I-shaped, the movable seat is provided with a T-slot, the T-slot fits into the bottom of the ring rail, the movable seat is provided with a plurality of bolt holes, and the locking mechanism is a bolt fitted into the bolt holes.

[0011] In some embodiments of the present invention, the first traction rope includes a traction section, a connecting section, and a force detection element. The traction section is connected to the drive unit and wound around the pulley, and the connecting section is connected to the traction section through the force detection element.

[0012] In some embodiments of the present invention, there are at least two connecting segments, and one end of at least two of the connecting segments is connected to the traction segment through the force detection element.

[0013] In some embodiments of the present invention, the fusion device includes an emission mechanism, the emission mechanism including an emission pipe disposed below the maintenance window and extending radially out of the maintenance channel along the Dewar base; the disassembly device further includes a bracket disposed within the maintenance channel directly below the second lifting mechanism and above the emission pipe, and the mobile vehicle is mounted on the bracket.

[0014] According to an embodiment of the present invention, a method for disassembling a fusion device maintenance window is provided, using the disassembly device for the fusion device maintenance window described in any of the preceding claims. The method includes: step S1, adjusting the positions of the pulley, the drive unit, and the first traction rope so that the pulley, the drive unit, and the first traction rope are located directly above the center plane of the flange cover in the vertical plane; step S2, connecting the first traction rope of the first hoisting mechanism to the lifting point on the upper part of the flange cover, removing the flange cover from the window flange, and slowly moving the flange cover along the central axis of the window flange until the flange cover is completely detached from the window flange. Simultaneously, control the pulley adjustment component to drive the pulley and the flange cover to move synchronously, so that the part of the first traction rope located under the pulley and the flange cover maintain no angle in the vertical direction; Step S3, connect the second traction rope of the second lifting mechanism to the lifting point at the lower part of the flange cover, retract the second traction rope and cooperate with the first lifting mechanism to flip the lower part of the flange cover upward until the flange cover is directly above the moving vehicle and the flange cover is placed flat on the moving vehicle; Step S4, detach the first traction rope and the second traction rope from the flange cover, and control the moving vehicle to move the flange cover out of the maintenance channel.

[0015] According to the present invention, the method for disassembling the maintenance window of a fusion device involves precisely adjusting the positions of the pulley, the drive unit, and the first traction rope. During the removal of the flange cover and its movement along the central axis, the pulley adjustment component drives the pulley and the flange cover to move synchronously. This ensures that the portion of the first traction rope below the pulley maintains no angle with the flange cover in the vertical direction, avoiding the risk of damage to the sealing surface during disassembly and improving the reliability of the method. Furthermore, the introduction of a second lifting mechanism in conjunction with the first lifting mechanism increases the stability of the hoisting, precisely controls the flange cover's rotation and movement within the narrow maintenance passage, and prevents collisions between the flange cover and other components during rotation and movement, further enhancing the reliability of the method.

[0016] In some embodiments of the present invention, the first traction rope is provided with a force detection element; step S2 further includes: real-time monitoring of the value of the force detection element to ensure that the value of the force detection element matches the weight of the flange cover.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 A three-dimensional structural diagram of the disassembly device for the maintenance window of the fusion device and the mating part of the fusion device provided in some embodiments of the present invention;

[0020] Figure 2 A front view of the disassembly device for the maintenance window of a fusion device and the mating part of the fusion device provided in some embodiments of the present invention;

[0021] Figure 3 This is a structural schematic diagram of the first hoisting mechanism provided in some embodiments of the present invention;

[0022] Figure 4 A top view of the guide rail and pulley adjustment components provided in some embodiments of the present invention;

[0023] Figure 5 A three-dimensional structural schematic diagram of a window flange provided in some embodiments of the present invention;

[0024] Figure 6 A three-dimensional structural diagram of a maintenance window provided in some embodiments of the present invention;

[0025] Figure 7 for Figure 6A magnified view of a portion of point I;

[0026] Figure 8 for Figure 6 Enlarged view of section II;

[0027] Figure 9 This is a disassembly device for a fusion device maintenance window according to some embodiments of the present invention, in the state of disassembling and maintaining the window. Figure 1 ;

[0028] Figure 10 This is a disassembly device for a fusion device maintenance window according to some embodiments of the present invention, in the state of disassembling and maintaining the window. Figure 2 ;

[0029] Figure 11 This is a disassembly device for a fusion device maintenance window according to some embodiments of the present invention, in the state of disassembling and maintaining the window. Figure 3 ;

[0030] Figure 12 This is a disassembly device for a fusion device maintenance window according to some embodiments of the present invention, in the state of disassembling and maintaining the window. Figure 4 ;

[0031] Figure 13 This is a disassembly device for a fusion device maintenance window according to some embodiments of the present invention, in the state of disassembling and maintaining the window. Figure 5 ;

[0032] Figure 14 This is a flowchart of a method for disassembling the maintenance window of a fusion device according to some embodiments of the present invention.

[0033] Figure label:

[0034] 100. Disassembly device for the maintenance window of the fusion device;

[0035] 10. First hoisting mechanism;

[0036] 11. Ring rail; 12. Guide rail; 13. Pulley; 131. Pulley body; 132. Pulley seat; 14. Pulley adjusting component; 15. Lifting component; 151. Drive unit; 1511. Moving seat; 1511a. Bolt hole; 1512. Locking mechanism; 1513. Drive mechanism; 152. First traction rope; 1521. Traction section; 1522. Connecting section; 1523. Force detection component;

[0037] 20. Second lifting mechanism; 21. Second traction rope; 30. Moving vehicle; 40. Support frame;

[0038] 200. Maintenance window; 210. Window flange; 211. Telescopic drive; 212. Guide rod; 220. Flange cover; 220a. Guide hole; 221. Connecting block; 222. Lifting ring; 223. Fastener; 300. Dewar base; 400. Bio-shield wall; 410. Maintenance passage; 500. Discharge mechanism; 510. Discharge pipe. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0042] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] The following is for reference. Figures 1-4 This invention describes a disassembly device 100 for a fusion device maintenance window according to an embodiment of the present invention.

[0045] like Figures 1 to 4As shown, the fusion device maintenance window disassembly device 100 of this embodiment of the invention includes a maintenance window 200 and a Dewar base 300. The maintenance window 200 includes a window flange 210 and a flange cover 220. The flange cover 220 is installed on the window flange 210. The Dewar base 300 is located above the maintenance window 200. The biological shielding wall 400 around the fusion device is provided with a maintenance channel 410. The maintenance channel 410 is located on the side of the flange cover 220 away from the window flange 210. The dismantling device 100 for the maintenance window of the fusion device according to an embodiment of the present invention includes: a first lifting mechanism 10, a second lifting mechanism 20, and a moving vehicle 30. The first lifting mechanism 10 includes a ring rail 11, a guide rail 12, a pulley 13, a pulley adjusting component 14, and a lifting component 15. The ring rail 11 is disposed on the Dewar base 300. The guide rail 12 is disposed outside the ring rail 11 and extends radially along the ring rail 11. The pulley 13 is slidably engaged with the guide rail 12. The pulley adjusting component 14 is disposed on the guide rail 12 and drives the pulley 13 to move along the length direction of the guide rail 12. The lifting component 15 includes a driving part 151 and a first traction rope 152. The driving part 151 is slidably engaged with the ring rail 11 and can release or retract the first traction rope 152. The first traction rope 152 is wound around the pulley 13. The second lifting mechanism 20 is disposed within the maintenance channel 410 and includes a releasable or retractable second traction rope 21. The moving vehicle 30 is disposed within the maintenance channel 410.

[0046] The first lifting mechanism 10 can refer to a mechanism used to lift the flange cover 220. In the above technical solution, the first lifting mechanism 10 includes a ring rail 11, a guide rail 12, a pulley 13, a pulley adjustment component 14, and a lifting component 15. The ring rail 11 can refer to an annular track so that the drive unit 151 can slide smoothly along the circumference of the ring rail 11, adjusting the circumferential position of the first traction rope 152 on the horizontal plane, thereby vertically lifting the flange cover 220 by the first traction rope 152 and preventing changes in the posture of the flange cover 220 during lifting. The guide rail 12 can refer to a strip-shaped track, extending radially along the outer side of the ring rail 11, so that the pulley 13 can slide on the guide rail 12 along the radial direction of the ring rail 11, thereby adjusting the support point position of the first traction rope 152 in the radial direction of the ring rail 11. The guide rail 12 can be fixed to the Dewar base 300. The pulley adjusting component 14 can refer to a component that adjusts the position of the pulley 13 on the guide rail 12. The pulley adjusting component 14 can be a manual adjusting component or an electric adjusting component, such as, but not limited to, a hydraulic cylinder, hydraulic rod, electric actuator, electric cylinder, lead screw, etc. For example, the pulley adjusting component 14 can be an electric cylinder.

[0047] The lifting component 15 can refer to the component that mainly bears the weight of the flange cover 220. The lifting component 15 can be a winch or an electric hoist, for example, the lifting component 15 is an electric hoist. The lifting component 15 includes a drive unit 151 and a first traction rope 152. Through the cooperation of the drive unit 151 and the pulley adjustment component 14, the first traction rope 152 can drive the flange cover 220 to move in the vertical direction and the circumferential radial direction, ensuring that the flange cover 220 is subjected to balanced force during lifting and avoiding tilting or swaying due to eccentricity.

[0048] The second lifting mechanism 20 can refer to the mechanism that works in conjunction with the first lifting mechanism 10 to lift the flange cover 220, and can be, but is not limited to, a winch or an electric hoist. The first traction rope 152 and the second traction rope 21 can be, but are not limited to, wire ropes, nylon ropes, etc. For example, the first traction rope 152 and the second traction rope 21 can be wire ropes.

[0049] The mobile vehicle 30 can refer to the component that moves the flange cover 220 out of the maintenance passage 410.

[0050] refer to Figures 5 to 8 In the maintenance window 200, the window flange 210 may be equipped with a telescopic drive component 211 and a guide rod 212, and multiple telescopic drive components 211 and guide rods 212 may be arranged circumferentially around the window flange 210. Correspondingly, the flange cover 220 may be equipped with a connecting block 221 and a lifting ring 222. The output end of the telescopic drive component 211 and the connecting block 221 are engaged by fasteners 223 to connect the window flange 210 and the flange cover 220, and the window flange 210 and the flange cover 220 are vacuum sealed by a sealing ring. Multiple lifting rings 222 are provided, and the lifting rings 222 can be engaged with the second traction rope 21 and the first traction rope 152 to lift the flange cover 220. At the same time, several guide rods 212 are evenly distributed around the circumference of the window flange 210, and several guide holes 220a are provided at corresponding positions on the flange cover 220. The telescopic drive component 211 can drive the flange cover 220 to move along the guide rods 212. The telescopic drive component 211 can be, but is not limited to, a hydraulic cylinder, a hydraulic rod, an electric actuator, an electric cylinder, a lead screw, etc., for example, refer to Figure 3 The telescopic drive component 211 is an electric cylinder.

[0051] refer to Figures 9 to 13 , Figures 9 to 13 A schematic diagram illustrating the removal of the flange cover 220 from the disassembly device 100 for the fusion device maintenance window under different operating conditions, for reference. Figure 9First, connect the first traction rope 152 to the lifting ring 222 on the upper part of the flange cover 220. Disconnect the output end of the telescopic drive component 211 from the connecting block 221. The first lifting mechanism 10, through the cooperation of the ring rail 11, guide rail 12, pulley 13, and pulley adjustment component 14, ensures that the flange cover 220 is smoothly moved out along the central axis of the flange cover 220 and completely separated from the window flange 210 during the initial disassembly stage. This avoids collisions or interference between the flange cover 220 and surrounding components during movement. During this process, the telescopic drive component 211 synchronously drives the flange cover 220 to move along the guide rod 212, and prevents an angle between the first traction rope 152 and the flange cover 220 plate. (Reference) Figure 10 Then connect the second traction rope 21 to the lifting ring 222 at the bottom of the flange cover 220, and continue to refer to Figure 11 and Figure 12 Through the coordinated operation of the second lifting mechanism 20 and the first lifting mechanism 10, the lower part of the flange cover 220 is flipped upwards, as shown in the reference. Figure 13 After the flange cover 220 is flipped to a horizontal position, it is accurately and stably placed on the moving trolley 30 below, avoiding other parts during the flipping process. Finally, the moving trolley 30, as the final transfer carrier, moves the flange cover 220 out of the maintenance passage 410. It can be understood that the installation of the flange cover 220 can be carried out by reversing the above steps.

[0052] According to an embodiment of the present invention, the dismantling device 100 for the maintenance window of a fusion device can remove the flange cover 220 from the window flange 210 by sequentially cooperating and lifting the first lifting mechanism 10, the second lifting mechanism 20, and the mobile vehicle 30. The flange cover 220 is adjusted in posture within the narrow maintenance channel 410 and then safely transported out of the maintenance channel 410 by the mobile vehicle 30. This effectively avoids the operational difficulties, low efficiency, and potential collision risks caused by space limitations in traditional dismantling methods, achieving efficient dismantling of the maintenance window 200 and improving the safety and reliability of the dismantling operation of the dismantling device 100 for the maintenance window of the fusion device.

[0053] In some embodiments of the present invention, such as Figure 3 As shown, the pulley 13 includes a pulley body 131 and a pulley seat 132. The pulley seat 132 is slidably mounted on the guide rail 12 along its extension direction, and the pulley body 131 is located at the bottom of the pulley seat 132. In the above technical solution, the pulley body 131 is located at the bottom of the pulley seat 132, which facilitates the installation of the first traction rope 152. The pulley seat 132 can be slidably mounted on the guide rail 12 via a slider, thereby adjusting the position of the pulley 13 on the guide rail 12 so that the portion of the first traction rope 152 passing over the pulley body 131 is in a vertical position relative to the flange cover 220.

[0054] In some embodiments of the present invention, reference is made to Figure 3and Figure 4 The pulley adjusting component 14 is a telescopic component and is located on the upper side of the guide rail 12. The telescopic end of the pulley adjusting component 14 is connected to the pulley seat 132. The pulley adjusting component 14 is a telescopic component, which can realize telescopic movement, and is more efficient than manual adjustment. Moreover, the telescopic movement drives the pulley seat 132 to move on the guide rail 12, which is simpler in driving mode and has higher overall reliability.

[0055] In some embodiments of the present invention, reference is made to Figure 3 The drive unit 151 includes a movable seat 1511, a locking mechanism 1512 and a drive mechanism 1513. The movable seat 1511 is slidably disposed on the ring rail 11. The locking mechanism 1512 is disposed on the movable seat 1511 and can be locked or unlocked from the ring rail 11. The drive mechanism 1513 is disposed on the movable seat 1511 and connected to the first traction rope 152.

[0056] The drive mechanism 1513 can be, but is not limited to, a motor-driven drum or roller, etc. For example, the drive mechanism 1513 is an electric hoist. In the above technical solution, the locking mechanism 1512 is unlocked from the ring rail 11, so that the moving seat 1511 can slide on the ring rail 11 to adjust the position of the drive unit 151 on the ring rail 11, so that the first traction rope 152 is directly above the center of gravity of the flange cover 220. After locking the locking mechanism 1512 and the ring rail 11, the position of the drive unit 151 on the ring rail 11 can be fixed, so that the first traction rope 152 connects to the flange cover 220 to start the disassembly work. This can avoid the flange cover 220 changing its posture during the separation of the flange cover 220 and the window flange 210, thereby avoiding the situation of bumping and damaging the sealing surface during the disassembly process, and improving the reliability of the disassembly device 100 for the fusion device maintenance window.

[0057] In some embodiments of the present invention, reference is made to Figure 3 The cross-section of the ring rail 11 is I-shaped. The moving seat 1511 is provided with a T-slot, which fits into the bottom of the ring rail 11. The moving seat 1511 is provided with multiple bolt holes 1511a. The locking mechanism 1512 is a bolt and fits into the bolt holes 1511a.

[0058] The number of bolt holes 1511a can be, but is not limited to, two, three, four, five, etc.

[0059] In the above technical solution, the cross-section of the ring rail 11 is I-shaped, which increases the structural strength of the ring rail 11 and provides a stable support structure for the moving seat 1511. Meanwhile, the locking mechanism 1512 is a bolt fitted into the bolt hole 1511a, which limits the moving seat 1511 in the vertical direction and the radial direction of the bolt, preventing the moving seat 1511 from falling off during sliding and improving the reliability of the first lifting mechanism 10. Furthermore, the locking mechanism 1512 is a bolt, which has a simple structure and is easy to operate.

[0060] In some embodiments of the present invention, reference is made to Figure 3 The first traction rope 152 includes a traction section 1521, a connecting section 1522 and a force detection element 1523. The traction section 1521 is connected to the drive unit 151 and is wound around the pulley 13. The connecting section 1522 is connected to the traction section 1521 through the force detection element 1523.

[0061] The force detection element 1523 can be, but is not limited to, a force sensor. In the above technical solution, during the separation of the window flange 210 and the flange cover 220, the force detection element 1523 can monitor the force on the first traction rope 152 in real time, ensuring that the value of the force detection element 1523 is equivalent to the weight of the flange cover 220, avoiding the angle between the first traction rope 152 and the flange cover 220 plate, and thus avoiding the risk of damage to the sealing surface during disassembly. This can improve the reliability of the disassembly device 100 for the fusion device maintenance window.

[0062] In some embodiments of the present invention, reference is made to Figure 3 There are at least two connecting segments 1522, and one end of each of the at least two connecting segments 1522 is connected to the traction segment 1521 through the force detection element 1523.

[0063] The number of connection segments 1522 can be, but is not limited to, two, three, four, five, etc. For example, refer to... Figure 3 In the above technical solution, there are at least two connecting sections 1522, which can constrain the flange cover 220 from multiple angles, prevent the flange cover 220 from shaking during hoisting, improve the stability of the hoisted flange cover 220, reduce the risk of collisions during hoisting, and thus improve the reliability of hoisting.

[0064] In some embodiments of the present invention, reference is made to Figure 1 and Figure 2 The fusion device includes an emission mechanism 500, which includes an emission pipe 510. The emission pipe 510 is located below the maintenance window 200 and extends into a maintenance channel 410 along the radial direction of the Dewar base 300. The dismantling device also includes a bracket 40, which is located within the maintenance channel 410, directly below the second lifting mechanism 20 and above the emission pipe 510. A mobile vehicle 30 is mounted on the bracket 40.

[0065] The discharge mechanism 500 can refer to a device that can release pressure when the internal pressure of the maintenance window 200 reaches a set value, and the released gas can be discharged to the outside through the discharge pipe 510. It is understood that in the above scheme, the space where the maintenance window 200 is located is relatively narrow due to the presence of the discharge mechanism 500, and the disassembly of the flange cover 220 is difficult. The disassembly device 100 for the fusion device maintenance window of this embodiment of the invention can be used for disassembly in this narrow space.

[0066] In the above technical solution, the discharge pipe 510 is located below the maintenance window 200, and the bracket 40 is located above the discharge pipe 510. The bracket 40 can be used to protect the discharge mechanism 500 and prevent damage to it. The bracket 40 can also provide a placement platform for the mobile vehicle 30 and reduce the vertical height difference between the mobile vehicle 30 and the flange cover 220, which is beneficial for placing the flange cover 220 on the mobile vehicle 30.

[0067] like Figures 9 to 14 As shown, according to an embodiment of the present invention, a method for disassembling a fusion device maintenance window is also provided. The disassembly is performed using the disassembly device 100 of any of the preceding embodiments. The method includes:

[0068] Step S1: Adjust the positions of pulley 13, drive unit 151 and first traction rope 152 so that pulley 13, drive unit 151 and first traction rope 152 are located directly above the center plane of flange cover 220 in the vertical plane.

[0069] Step S2: Connect the first traction rope 152 of the first lifting mechanism 10 to the lifting point on the upper part of the flange cover 220, remove the flange cover 220 from the window flange 210, and slowly move the flange cover 220 out along the central axis of the window flange 210 until the flange cover 220 is completely separated from the window flange 210. During this process, control the pulley adjustment component 14 to drive the pulley 13 to move synchronously with the flange cover 220, so that the part of the first traction rope 152 located under the pulley 13 and the flange cover 220 are kept without angle in the vertical direction.

[0070] Step S3: Connect the second traction rope 21 of the second lifting mechanism 20 to the lifting point at the lower part of the flange cover 220, retract the second traction rope 21 and cooperate with the first lifting mechanism 10 to flip the lower part of the flange cover 220 upward until the flange cover 220 is directly above the moving vehicle 30 and the flange cover 220 is placed flat on the moving vehicle 30.

[0071] Step S4: Disconnect the first traction rope 152 and the second traction rope 21 from the flange cover 220, and control the moving vehicle 30 to move the flange cover 220 out of the maintenance passage 410.

[0072] It is understandable that the above-mentioned method for disassembling the fusion device maintenance window can also be used to install the flange cover 220. The installation steps are simply the reverse of the disassembly method for the fusion device maintenance window.

[0073] According to the embodiment of the present invention, the disassembly method of the fusion device maintenance window 200 is achieved by precisely adjusting the positions of the pulley 13, the drive unit 151, and the first traction rope 152. During the removal of the flange cover 220 and its movement along the central axis, the pulley adjustment component 14 drives the pulley 13 and the flange cover 220 to move synchronously. This ensures that the portion of the first traction rope 152 located below the pulley 13 maintains no angle with the flange cover 220 in the vertical direction, avoiding the risk of damage to the sealing surface during disassembly and improving the reliability of the disassembly method. Furthermore, the introduction of the second lifting mechanism 20 and the first lifting mechanism 10 in coordinated operation increases the stability of the hoisting, precisely controls the flipping and movement of the flange cover 220 within the narrow maintenance channel 410, and avoids collisions between the flange cover 220 and other components during the flipping and movement, further improving the reliability of the disassembly method.

[0074] In some embodiments of the present invention, such as Figure 3 As shown, the first traction rope 152 is equipped with a force detection element 1523; step S2 further includes: real-time monitoring of the value of the force detection element 1523 to ensure that the value of the force detection element 1523 matches the self-weight of the flange cover 220. In the above technical solution, real-time monitoring of the value of the force detection element 1523, ensuring that the value of the force detection element 1523 matches the self-weight of the flange cover 220, can avoid the formation of an angle between the first traction rope 152 and the flange cover 220 plate, thereby avoiding the risk of damage to the sealing surface during disassembly and improving the reliability of the disassembly device 100 for the fusion device maintenance window.

[0075] The following is combined Figures 1 to 4 This describes a specific embodiment of the disassembly device 100 for the maintenance window of the fusion device of the present invention.

[0076] The fusion device includes a maintenance window 200, a Dewar base 300, and a discharge mechanism 500. The maintenance window 200 includes a window flange 210 and a flange cover 220, with the flange cover 220 mounted on the window flange 210. The Dewar base 300 is located above the maintenance window 200. A bio-shield wall 400 surrounding the fusion device has a maintenance channel 410 located on the side of the flange cover 220 away from the window flange 210. The discharge mechanism 500 includes a discharge pipe 510 located below the maintenance window 200 and extending radially outward from the maintenance channel 410 along the Dewar base 300.

[0077] The dismantling device 100 for the fusion device maintenance window includes: a first lifting mechanism 10, a second lifting mechanism 20, a mobile vehicle 30, and a support 40.

[0078] The first lifting mechanism 10 includes a ring rail 11, a guide rail 12, a pulley 13, a pulley adjusting member 14, and a lifting component 15. The pulley 13 includes a pulley body 131 and a pulley seat 132. The pulley seat 132 is slidably mounted on the guide rail 12 along its extension direction, and the pulley body 131 is located at the bottom of the pulley seat 132. The pulley adjusting member 14 is a telescopic member located on the upper side of the guide rail 12, and its telescopic end is connected to the pulley seat 132. The lifting component 15 includes a drive unit 151 and a first traction rope 152. The drive unit 151 includes a movable seat 1511, a locking mechanism 1512, and a drive mechanism 1513. The movable seat 1511 is slidably mounted on the ring rail 11. The locking mechanism 1512 is mounted on the movable seat 1511 and can be locked or unlocked from the ring rail 11. The drive mechanism 1513 is mounted on the movable seat 1511 and connected to the first traction rope 152. The cross-section of the ring rail 11 is I-shaped. The movable seat 1511 is provided with a T-slot, which fits into the bottom of the ring rail 11. The movable seat 1511 is provided with multiple bolt holes 1511a, and the locking mechanism 1512 is a bolt that fits into the bolt holes 1511a. The first traction rope 152 includes a traction section 1521, a connecting section 1522, and a force detection element 1523. The traction section 1521 is connected to the drive unit 151 and is wound around the pulley 13. There are two connecting sections 1522, and one end of the two connecting sections 1522 is connected to the traction section 1521 through the force detection element 1523.

[0079] The second lifting mechanism 20 is located within the maintenance passage 410 and includes a releasable or retractable second traction rope 21.

[0080] The mobile vehicle 30 is located within the maintenance passage 410.

[0081] The support 40 is located in the maintenance passage 410, directly below the second lifting mechanism 20 and above the discharge pipe 510, and the mobile vehicle 30 is mounted on the support 40.

[0082] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A disassembly device for a maintenance window of a fusion device, the fusion device comprising a maintenance window and a Dewar base, the maintenance window comprising a window flange and a flange cover, the flange cover being mounted on the window flange, the Dewar base being disposed above the maintenance window, and a maintenance channel being provided in the bio-shield wall surrounding the fusion device, the maintenance channel being disposed on the side of the flange cover away from the window flange, characterized in that, The disassembly device includes: The first lifting mechanism includes a ring rail, a guide rail, a pulley, a pulley adjusting component, and a lifting component. The ring rail is mounted on the Dewar base. The guide rail is located outside the ring rail and extends radially along the ring rail. The pulley is slidably fitted on the guide rail. The pulley adjusting component is mounted on the guide rail and drives the pulley to move along the length of the guide rail. The lifting component includes a drive unit and a first traction rope. The drive unit is slidably fitted on the ring rail and can release or retract the first traction rope. The first traction rope is wound around the pulley. The second lifting mechanism is located within the maintenance passage and includes a releasable or retractable second traction rope; The mobile vehicle is located within the maintenance access road.

2. The disassembly device for the maintenance window of the fusion device according to claim 1, characterized in that, The pulley includes a pulley body and a pulley seat. The pulley seat is slidably disposed on the guide rail along the extension direction of the guide rail, and the pulley body is disposed at the bottom of the pulley seat.

3. The disassembly device for the maintenance window of the fusion device according to claim 2, characterized in that, The pulley adjustment component is a telescopic component and is located on the upper side of the guide rail. The telescopic end of the pulley adjustment component is connected to the pulley seat.

4. The disassembly device for the maintenance window of the fusion device according to claim 1, characterized in that, The drive unit includes a movable seat, a locking mechanism, and a drive mechanism. The movable seat is slidably disposed on the ring rail. The locking mechanism is disposed on the movable seat and can be locked or unlocked from the ring rail. The drive mechanism is disposed on the movable seat and connected to the first traction rope.

5. The disassembly device for the maintenance window of the fusion device according to claim 4, characterized in that, The cross-section of the ring rail is I-shaped, the movable seat is provided with a T-slot, the T-slot fits into the bottom of the ring rail, the movable seat is provided with multiple bolt holes, and the locking mechanism is a bolt fitted into the bolt holes.

6. The disassembly device for the maintenance window of the fusion device according to claim 1, characterized in that, The first traction rope includes a traction section, a connecting section, and a force detection element. The traction section is connected to the drive unit and wound around the pulley. The connecting section is connected to the traction section through the force detection element.

7. The disassembly device for the maintenance window of a fusion device according to claim 6, characterized in that, The connecting segment is at least two, and one end of at least two of the connecting segments is connected to the traction segment through the force detection element.

8. The disassembly device for the maintenance window of the fusion device according to claim 1, characterized in that, The fusion device includes an emission mechanism, which includes an emission pipe located below the maintenance window and extending radially out of the maintenance channel from the Dewar base. The dismantling device also includes a bracket, which is located within the maintenance channel directly below the second lifting mechanism and above the discharge pipe, and the mobile vehicle is mounted on the bracket.

9. A method for disassembling a maintenance window of a fusion device, characterized in that, Disassembly is performed using the disassembly device for the fusion device maintenance window as described in any one of claims 1 to 8, the method comprising: Step S1: Adjust the positions of the pulley, the drive unit, and the first traction rope so that the pulley, the drive unit, and the first traction rope are located directly above the center plane of the flange cover in the vertical plane; Step S2: Connect the first traction rope of the first hoisting mechanism to the lifting point on the upper part of the flange cover, remove the flange cover from the window flange, and slowly move the flange cover out along the central axis of the window flange until the flange cover is completely separated from the window flange. During this process, control the pulley adjustment component to drive the pulley and the flange cover to move synchronously, so that the part of the first traction rope located under the pulley and the flange cover maintain no angle in the vertical direction. Step S3: Connect the second traction rope of the second lifting mechanism to the lifting point at the bottom of the flange cover, retract the second traction rope and cooperate with the first lifting mechanism to flip the bottom of the flange cover upward until the flange cover is directly above the moving vehicle and the flange cover is placed flat on the moving vehicle. Step S4: Disconnect the first traction rope and the second traction rope from the flange cover, and control the mobile vehicle to move the flange cover out of the maintenance passage.

10. The method for disassembling the maintenance window of a fusion device according to claim 9, characterized in that, The first traction rope is equipped with a force detection device; step S2 further includes: real-time monitoring of the value of the force detection device to ensure that the value of the force detection device matches the weight of the flange cover.

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