Fusion device main machine assembly cleaning protection device and method

Abstract

The application belongs to the technical field of fusion devices, and discloses a fusion device main machine assembly cleaning protection device and method. The first plant is arranged on the top of the biological shielding wall of the main machine hall, and the second plant is arranged on the side of the first plant facing the pre-assembly hall, so as to establish a buffer cleaning area before the sub-component module is hoisted into the biological shielding wall of the main machine hall from the pre-assembly hall. Fresh air is introduced into the second plant, the biological shielding wall and the first plant, so that the second plant, the biological shielding wall and the first plant are in positive pressure. The application can effectively inhibit dust from entering the first plant, the second plant and the biological shielding wall, so as to ensure the cleanliness of the sub-component module in the hoisting process and the cleanliness of the existing components in the biological shielding wall. The cleaning protection cost is low, and the operation is simple.

Description

Technical Field

[0001] This invention relates to the field of fusion device technology, and in particular to a cleaning and protection device and method for the main assembly of a fusion device. Background Technology

[0002] The main components of a tokamak fusion device include a vacuum chamber, magnets, a cold shield, and a Dewar breaker. During operation, extremely high cleanliness requirements are necessary for several reasons: First, the massive vacuum system formed by the assembled vacuum chamber and Dewar breaker must be evacuated to and maintained at a high / ultra-high vacuum. If residual grease, dust, fibers, moisture, or volatile organic compounds remain inside, these substances will slowly release gases during evacuation, preventing the required vacuum level from being achieved and indefinitely prolonging the evacuation time. Second, the insulation performance of the magnet coils is crucial. Metal dust, particles, or conductive contaminants adhering to the insulators can form conductive paths, triggering partial discharge or high-voltage breakdown at tens of thousands of volts. This can lead to system tripping or, in severe cases, permanent damage to expensive insulating components and the magnet power supply. Third, the superconducting coils must operate at extremely low temperatures and high vacuum, making the cold shield a critical thermal barrier. Contaminants (especially moisture and oil) solidify and deposit on the surface of the cold shield and magnets at low temperatures, forming a "low-temperature adsorption layer." This will lead to two major catastrophic problems: a surge in heat load and the risk of overload.

[0003] To ensure the high cleanliness requirements of the tokamak fusion device's main unit during operation, cleanliness control during the main unit assembly process is crucial. This is because core components of the tokamak fusion device, such as the vacuum chamber, magnets, cold shield, and dewars, need to be manufactured in the factory as sub-components for easy transport and assembly. These sub-components are pre-assembled in the pre-assembly hall of the fusion device building. These pre-assembled sub-component modules are called "Sectors." Then, the "Sectors" are hoisted into the main unit hall by a crane in the fusion device building, positioned, and adjusted before formal assembly. In this main unit assembly process, each sub-component module is pre-assembled from its sub-components in the pre-assembly hall like building blocks, making thorough cleaning of the sub-components much easier.

[0004] However, to achieve the high level of cleanliness required for the final assembly of the fusion device main unit, the following measures are also necessary: ​​environmental control, establishing a high-level cleanroom environment in the fusion device factory, controlling temperature and humidity, and reducing dust intrusion; personnel and tool management, with operators wearing cleanroom suits, using specialized cleanroom tools, and strictly adhering to cleanroom procedures; component pre-cleaning, requiring all components (screws, brackets, pipes, etc.) to undergo rigorous pre-cleaning and vacuum baking before being transported in sealed containers; process monitoring, using endoscopes, white gloves, particle counters, and other methods to continuously monitor the internal cleanliness during the assembly process; and protective covering, covering cleaned areas and openings with cleanroom materials to prevent cross-contamination.

[0005] like Figure 1 As shown, during the final assembly of the fusion device main unit, sub-components are pre-assembled into "Sectors" in the pre-assembly hall. These "Sectors" are then hoisted from the pre-assembly hall to the main unit hall by overhead cranes for final assembly. The process of hoisting the "Sectors" into the equipment pit within the main unit hall presents a significant challenge in cleanliness control. This is because the fusion device facility is extremely large, making it impossible to maintain a high level of cleanliness throughout the entire facility—the cost would be prohibitively high. Therefore, a cleanliness control zone is established within the sub-component assembly area of ​​the pre-assembly hall to handle sub-component cleaning, pre-assembly, and protection. However, after the sub-components are pre-assembled, the "Sectors" hoisted out of the cleanliness control zone of the pre-assembly hall inevitably come into contact with the air outside, thus becoming contaminated with dust. In addition, a cleanliness control zone is also established in the foundation pit (i.e., the biological shield wall) of the main hall. However, during the stage of hoisting the "Sector" into the equipment foundation pit, the foundation pit cleanliness control zone will inevitably be opened. The equipment that has been placed and cleaned in the foundation pit of the main hall will come into contact with the air outside the foundation pit of the main hall without any buffer. Summary of the Invention

[0006] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide a cleaning and protection device and method for the main assembly of a fusion device, which can ensure the cleanliness of sub-component modules and existing components within the bio-shield wall during the hoisting process, with low cleaning and protection costs and convenient operation.

[0007] According to a first aspect of the present invention, a fusion device main assembly cleaning and protection device includes:

[0008] The first workshop is located on top of the biological shielding wall in the main hall and is vertically connected to the biological shielding wall. The first workshop includes a main body and a roof. The main body of the first workshop has a side opening facing the pre-assembly hall and a first top opening connected to the upper end of the side opening. The roof is normally closed and rotatably covers the entire top of the main body of the first workshop, including a roof body and a top door. The roof body has a radial opening, and the top door is normally closed and openable at the radial opening.

[0009] The second workshop is located on the floor level of the main hall, at the same height as the top of the biological shielding wall, and extends from the side of the first workshop facing the pre-assembly hall toward the pre-assembly hall. At each end of the second workshop are a normally closed but openable first sealed door and a second sealed door, respectively. The first sealed door is located away from the first workshop relative to the second sealed door, and the second sealed door is located at the side opening. A normally closed but openable small sealed door is provided on the side of the second workshop. The top surface of the second workshop has a second top opening extending from one end to the other, which is directly opposite the side opening on the horizontal projection plane. An air inlet duct interface for introducing fresh air is provided on one or both sides of the second workshop.

[0010] The biological shielding wall has some windows reserved as fresh air inlets.

[0011] When it is necessary to hoist sub-component modules from the pre-assembly hall to the bio-shielded wall in the main unit hall for installation, the following steps shall be followed in sequence:

[0012] S1: After cleaning the exposed surfaces of the pre-assembled sub-component modules in the cleanliness control area of ​​the pre-assembly hall, cover the sub-component modules with a protective film to prevent them from being contaminated during the process of being hoisted out of the pre-assembly hall and into the second factory building.

[0013] S2: Open the top of the cleanliness control area of ​​the pre-installed hall, lower the hook of the crane's sling and connect it to the balance beam of the sub-component module; this connection is convenient and reliable.

[0014] S3: Use the crane to move the sub-component module to a position close to the first sealed door, and introduce fresh air into the second workshop through the air inlet pipe interface to ensure that the second workshop is under positive pressure. This allows the gas in the second workshop to overflow from the opening on the second top surface, thus expelling the original air in the second workshop and preventing external dust from naturally mixing into the second workshop, thereby maintaining the cleanliness of the second workshop.

[0015] S4: Open the first sealed door, and after the crane moves the sub-component module into the second workshop, close the first sealed door in time.

[0016] S5: Remove the protective film on the sub-component module, and clean the exposed surfaces of the sub-component module and the lifting slings again to ensure the cleanliness of the sub-component module and the lifting slings when they subsequently enter the first workshop and the biological shielding wall; introduce fresh air into the biological shielding wall through the fresh air inlet reserved on the biological shielding wall to create a positive pressure state inside the biological shielding wall. In this way, when the second sealed door and the top door are opened later, external dust can be prevented from naturally mixing into the first workshop and the biological shielding wall, thus ensuring the cleanliness of the first workshop and the biological shielding wall, thereby ensuring the cleanliness of the sub-component module during the hoisting process and the cleanliness of the existing components inside the biological shielding wall.

[0017] S6: Open the second sealed door and the top door of the top cover; use the crane to move the sub-component module from the second workshop into the first workshop, wherein the second sealed door is closed in time after the crane moves the sub-component module into the first workshop.

[0018] S7: The sub-component module is placed in its installation position by means of the crane movement, the rotation of the top cover, and the descent of the slings; the fresh air introduced into the bio-shield wall creates a positive pressure inside the bio-shield wall, and the airflow overflows outward from the radial opening of the top cover body, which can prevent external dust from naturally falling into the first workshop and the bio-shield wall, thus ensuring the cleanliness of the sub-component module being hoisted and installed and the existing components inside the bio-shield wall.

[0019] S8: By lifting with the slings, moving the trolley, and rotating the top cover, the slings are removed from inside the bio-shield wall. The top door and the second sealed door are closed promptly, and the supply of fresh air into the bio-shield wall is stopped. This returns the slings and the trolley to their initial positions, facilitating the next lifting of other sub-component modules. Simultaneously, the timely closure of the top door and the second sealed door helps maintain the cleanliness of the first workshop and the bio-shield wall.

[0020] Therefore, the fusion device main assembly cleaning and protection device of the first aspect of the present invention, by setting a first workshop on top of the bio-shield wall in the main hall and a second workshop on the side of the first workshop facing the pre-assembly hall, serves as a buffer cleaning zone before the sub-component modules are hoisted from the pre-assembly hall into the bio-shield wall of the main hall. Fresh air is introduced into the second workshop, the bio-shield wall, and the first workshop to create positive pressure within them, thereby ensuring the cleanliness of the sub-component modules and the existing components within the bio-shield wall during the hoisting process, resulting in low cleaning and protection costs. Furthermore, the top cover is self-rotating, simplifying the positioning adjustment of the sub-component modules and ensuring no blind spots in the positioning.

[0021] In some embodiments, the periphery of the main body of the top cover is provided with spaced casters, and the top of the main body of the first factory building is provided with a rotating track, the casters cooperating with the rotating track.

[0022] In some embodiments, the top door is a side sliding door.

[0023] In some embodiments, the first factory building body, the roof body and the second factory building all adopt a truss structure, and the top door adopts a structural component.

[0024] In some embodiments, the truss structure includes a truss body and a panel disposed on the truss body.

[0025] The second aspect of this invention proposes a cleaning and protection method for the main assembly of a fusion device.

[0026] According to a second aspect embodiment of the present invention, a cleaning and protection method for the main assembly of a fusion device is adopted, as described in the first aspect embodiment of the present invention, and the radial opening and the side opening are aligned on a horizontal projection plane; the method includes the following steps:

[0027] S1: After cleaning the exposed surfaces of the pre-assembled sub-component modules in the cleanliness control area of ​​the pre-assembly hall, cover the sub-component modules with a protective film.

[0028] S2: Open the top of the cleanliness control area of ​​the pre-installed hall, lower the hook of the crane's sling and connect it to the balance beam of the sub-component module;

[0029] S3: Use the crane to move the sub-component module to a position close to the first sealed door, and introduce fresh air into the second workshop through the air inlet pipe interface to ensure that the second workshop is under positive pressure;

[0030] S4: Open the first sealed door, and after the crane moves the sub-component module into the second workshop, close the first sealed door in time;

[0031] S5: Remove the protective film on the sub-component module, and clean the exposed surface of the sub-component module and the sling again; introduce fresh air into the biological shielding wall through the fresh air interface reserved on the biological shielding wall to make the inside of the biological shielding wall a positive pressure state;

[0032] S6: Open the second sealed door and the top door of the top cover; use the crane to move the sub-component module from the second workshop into the first workshop, wherein, after the crane moves the sub-component module into the first workshop, close the second sealed door in time;

[0033] S7: By moving the crane, rotating the top cover, and lowering the slings, the sub-component module is placed in the installation position;

[0034] S8: By lifting with the slings, moving with the trolley, and rotating with the top cover, the slings are removed from inside the bio-shield wall. The top door and the second sealed door are closed in time, and then the supply of fresh air into the bio-shield wall is stopped.

[0035] Since the fusion device main assembly cleaning and protection method of the second aspect embodiment of the present invention adopts the fusion device main assembly cleaning and protection device of the first aspect embodiment of the present invention, the fusion device main assembly cleaning and protection method of the second aspect embodiment of the present invention has the same technical effect as the fusion device main assembly cleaning and protection device of the first aspect embodiment of the present invention, and will not be described again here.

[0036] In some embodiments, in step S1, the protective film is a polyethylene film.

[0037] In some embodiments, in step S2, the overhead crane is used to lift the sub-component module to the bottom of the sub-component module, detach it from the pre-assembled support, and conduct a lifting test to check the performance of the overhead crane and the connection status of the lifting slings.

[0038] In some embodiments, step S3 specifically involves: using the crane to lift the sub-component module to a suitable height and moving it toward the first sealed door; once the sub-component module has moved close to the first sealed door, adjusting the lifting height so that the top of the hook of the sling is lower than the top surface of the second factory building; using a clean air duct to connect the fresh air unit to the air inlet duct interface, and adjusting the fresh air volume to create positive pressure inside the second factory building.

[0039] In some embodiments, step S5 specifically involves: pre-cleaning personnel and tools, entering the second workshop through the sealed small door, removing the protective film on the sub-component module, and cleaning the exposed surfaces of the sub-component module and the lifting slings again.

[0040] In some embodiments, step S7 specifically involves: adjusting the distance between the sub-component module and the center of the biological shielding wall by moving the trolley according to the orientation of the sub-component module's installation position; adjusting the orientation angle of the sub-component module within the biological shielding wall by coordinating the rotation of the top cover; adjusting the orientation angle of the sub-component module itself by rotating the hook, until the sub-component module is moved directly above the installation position; lowering the sub-component module and continuously adjusting its position and orientation until the sub-component module is placed on the support of the installation position; and disconnecting the connection between the balance beam and the hook.

[0041] In some embodiments, step S8 specifically involves: lifting the hook, moving the trolley, and rotating the top cover to move the hook to the position height of the second factory building; opening the second sealed door and moving the hook into the second factory building; closing the top door and the second sealed door; then stopping the supply of fresh air to the bio-shield wall; opening the first sealed door; moving the hook outside the second factory building; closing the first sealed door; and stopping the supply of fresh air into the second factory building.

[0042] 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

[0043] Figure 1 This is a flowchart illustrating the process of hoisting sub-component modules from the pre-assembly hall to the main unit hall;

[0044] Figure 2 This is a perspective view of the cleaning and protection device for the main assembly of the fusion device according to an embodiment of the present invention;

[0045] Figure 3 This is a top view schematic diagram of the cleaning and protection device for the main assembly of the fusion device according to an embodiment of the present invention;

[0046] Figure 4 This is a schematic diagram of the truss main structure of the first and second factory buildings in an embodiment of the present invention;

[0047] Figure 5 This is a structural schematic diagram of the truss main body of the top cover body in an embodiment of the present invention;

[0048] Figure 6 This is a partially enlarged schematic diagram of the top cover in an embodiment of the present invention;

[0049] Figure 7 This is a schematic diagram of the lifting of sub-component modules in the pre-assembly hall of the fusion device main assembly cleaning and protection method according to an embodiment of the present invention;

[0050] Figure 8 This is a schematic diagram of a sub-component module entering the biological shielding wall in the fusion device main assembly cleaning and protection method of this invention.

[0051] Figure 9 This is a schematic diagram of the hoisting and positioning of a sub-component module in the fusion device main assembly cleaning and protection method of this invention within a biological shielding wall.

[0052] Figure Labels

[0053] First factory building 1; First factory building main body 11; Side opening 111; First top opening 112; Top cover 12; Top cover main body 121; Radial opening 1211; Casters 1212; Casters 1212; Top door 122; Second factory building 2; First sealed door 21; Second sealed door 22; Sealed small door 23; Second top opening 24; Air inlet duct interface 25; Bio-shielded wall 3; Fresh air interface 31; Sub-component module 4. Detailed Implementation

[0054] Embodiments of the present invention are described in detail below, examples of which are illustrated 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 intended to explain the present invention, and should not be construed as limiting the present invention.

[0055] The following is combined Figures 2 to 9 This invention describes a cleaning and protection device and method for the main assembly of a fusion device according to an embodiment of the present invention.

[0056] like Figures 2 to 6 As shown, the fusion device main assembly cleaning and protection device according to the first aspect of the present invention includes a first plant 1 and a second plant 2.

[0057] The first workshop 1 is located on top of the biological shielding wall 3 in the main hall and is vertically connected to the biological shielding wall 3. The first workshop 1 is cylindrical and its shape is basically consistent with that of the biological shielding wall 3. The first workshop 1 includes a main body 11 and a top cover 12. The main body 11 has a side opening 111 facing the pre-assembly hall and a first top opening 112 connected to the upper end of the side opening 111. The size of the side opening 111 is suitable for the sub-component module 4 to pass through, and the first top opening 112 is preferably circular. The top cover 12 is normally closed and rotatably covers the entire top of the main body 11 of the first workshop, including a top cover body 121 and a top door 122. The top cover body 121 is rotatably set on the top of the first workshop 1. The top cover body 121 has a radial opening 1211, which extends from the edge of the top cover body 121 to the middle position of the top cover body 121 for the crane's hoisting cable to pass through. The top door 122 is normally closed and openable at the radial opening 1211.

[0058] The second workshop 2 is located on the floor at the same height as the top of the biological shielding wall 3 in the main hall, and extends from the side of the first workshop 1 facing the pre-assembly hall towards the pre-assembly hall; the second workshop 2 is rectangular in shape. The second workshop 2 has a normally closed but openable first sealed door 21 and a second sealed door 22 at both ends. The first sealed door 21 is farther away from the first workshop 1 than the second sealed door 22, and the second sealed door 22 is located at the side opening 111. When the first sealed door 21 and the second sealed door 22 are opened, the sub-component module 4 can pass through. The side of the second workshop 2 has a normally closed but openable sealed small door 23. When the sealed small door 23 is opened, pre-cleaning personnel and tools can enter the second workshop 2 to clean the sub-component module 4 and the hook inside the second workshop 2 again. The top surface of the second workshop 2 has a second top surface opening 24 extending from one end of the second workshop 2 to the other end. The second top surface opening 24 and the side opening 111 are directly opposite each other on the horizontal projection plane. The second top surface opening 24 is rectangular and allows the slings of the crane to pass through vertically. The second workshop 2 has an air inlet duct interface 25 for introducing fresh air on one or both sides. Specifically, the air inlet duct interface 25 can be connected to the fresh air unit through a clean air pipe. When the fresh air unit is turned on, fresh air can be introduced into the second workshop 2, and the positive pressure inside the second workshop 2 can be maintained so that the gas in the second workshop 2 can overflow from the second top opening 24. This can exhaust the original air in the second workshop 2 and at the same time prevent dust from naturally mixing into the second workshop 2, thus maintaining the cleanliness of the second workshop 2.

[0059] The biological shielding wall 3 has reserved windows as fresh air inlets 31. For example, four windows are reserved at even intervals on each of the first to third floors of the biological shielding wall 3, which are not closed, as fresh air inlets 31 of the biological shielding wall 3. The fresh air inlets 31 can be connected to the fresh air unit through a clean air pipe. When the fresh air unit is turned on, fresh air can be introduced into the biological shielding wall 3, so that the gas in the biological shielding wall 3 and the first workshop 1 can overflow from the radial opening 1211. This can prevent dust from naturally mixing into the first workshop 1 and the biological shielding wall 3, and maintain the cleanliness of the first workshop 1 and the biological shielding wall 3.

[0060] Therefore, the first workshop 1 and the second workshop 2 serve as buffer clean areas established before the sub-component module 4 is hoisted from the pre-assembly hall into the biological shield wall 3 of the main unit hall. They adopt positive pressure fresh air cleanliness protection, which can effectively inhibit dust from entering the first workshop 1, the second workshop 2 and the biological shield wall 3. This ensures the cleanliness of the sub-component module 4 during the hoisting process and the cleanliness of the existing components in the biological shield wall 3, resulting in low cleaning and protection costs.

[0061] It should be noted that the first sealed door 21 and the second sealed door 22 can be either double-leaf telescopic doors or sliding doors; the sealed small door 23 can be a double-leaf sealed protective door. The door frames and door rotation mechanisms of the first sealed door 21, the second sealed door 22, and the sealed small door 23 are arranged on the factory building structure.

[0062] When it is necessary to hoist sub-component module 4 from the pre-assembly hall to the biological shielding wall 3 in the main unit hall for installation, the following steps shall be followed in sequence:

[0063] S1: After cleaning the exposed surfaces of the pre-assembled sub-module 4 in the cleanliness control area of ​​the pre-assembly hall, cover the sub-module 4 with a protective film to prevent it from being contaminated during the process of being hoisted out of the pre-assembly hall and into the second workshop 2.

[0064] S2: Open the top of the cleanliness control area of ​​the pre-assembly hall, lower the hook of the crane's sling and connect it to the balance beam of sub-component module 4; the crane is an internal crane of the fusion device plant, the sling is suspended below the crane, and the lower end of the sling has a hook; after the top cover of the cleanliness control area of ​​the pre-assembly hall is opened, lower the height of the hook, and use a pin to connect the center hole of the hook to the connecting pin hole on the balance beam of sub-component module 4. This connection is convenient and reliable.

[0065] S3: Use a crane to move the sub-component module 4 to a position close to the first sealed door 21, and introduce fresh air into the second workshop 2 through the air inlet pipe interface 25 to ensure that the second workshop 2 is under positive pressure. This allows the gas in the second workshop 2 to overflow from the second top opening 24, thus expelling the original air in the second workshop 2 and preventing dust from naturally mixing into the second workshop 2, thereby maintaining the cleanliness of the second workshop 2.

[0066] S4: Open the first sealed door 21. After the crane moves the sub-component module 4 into the second workshop 2, close the first sealed door 21 in time. It should be noted that after the first sealed door 21 is opened, the sub-component module 4 and the hook pass through the doorway of the first sealed door 21. At the same time, the sling passes through the second top opening 24 to ensure that the sub-component module 4 is in a clean environment in the second workshop 2.

[0067] S5: Remove the protective film on sub-component module 4, and clean the exposed surfaces of sub-component module 4 and lifting slings again to ensure the cleanliness of sub-component module 4 and lifting slings when they enter the first workshop 1 and biological shielding wall 3. Introduce fresh air into the biological shielding wall 3 through the fresh air inlet 31 reserved on the biological shielding wall 3 to make the biological shielding wall 3 a positive pressure state. In this way, when the second sealed door 22 and the top door 122 are opened later, external dust can be prevented from naturally mixing into the first workshop 1 and biological shielding wall 3, thus ensuring the cleanliness of the first workshop 1 and the biological shielding device, thereby ensuring the cleanliness of sub-component module 4 during the hoisting process and the cleanliness of existing components in the biological shielding wall 3.

[0068] S6: Open the second sealed door 22 and the top door 122 of the top cover 12; use a crane to move the sub-component module 4 from the second workshop 2 into the first workshop 1. After the crane moves the sub-component module 4 into the first workshop 1, close the second sealed door 22 in time.

[0069] S7: By moving the crane, rotating the top cover 12, and lowering the slings, the sub-component module 4 is placed in the installation position; because the fresh air introduced into the biological shielding wall 3 creates a positive pressure inside the biological shielding wall 3, the airflow overflows outward from the radial opening 1211 of the top cover body 121, which can prevent external dust from falling into the biological shielding wall 3 naturally, thus ensuring the cleanliness of the sub-component module 4 being hoisted and installed and the existing components inside the biological shielding wall 3.

[0070] S8: By lifting with slings, moving with a crane, and rotating the top cover 12, the slings are removed from inside the bio-shielded wall 3. The top door 122 and the second sealed door 22 are closed in time, and the supply of fresh air into the bio-shielded wall 3 is stopped. This allows the slings and crane to return to their initial positions, facilitating the next lifting of the sub-component module 4. At the same time, closing the top door 122 and the second sealed door 22 in a timely manner helps to maintain the cleanliness of the first plant 1 and the bio-shielded wall 3.

[0071] Therefore, the fusion device main assembly cleaning and protection device of the first aspect of the present invention, by setting up a first workshop 1 and a second workshop 2, that is, establishing a buffer cleaning area before the sub-component module 4 is hoisted into the biological shield wall 3 of the main assembly hall, and using fresh air positive pressure cleanliness protection, can effectively inhibit dust from entering the first workshop 1, the second workshop 2 and the biological shield wall 3, thereby ensuring the cleanliness of the sub-component module 4 and the existing components within the biological shield wall 3 during the hoisting process, and the cleaning and protection cost is low. In addition, the top cover 12 can rotate, making the positioning adjustment operation of the sub-component module 4 simple and ensuring that there are no blind spots in the positioning position.

[0072] In some embodiments, the periphery of the top cover body 121 is provided with spaced casters 1212, and the top of the first factory building body 11 is provided with a rotating track, with the casters 1212 cooperating with the rotating track. In this way, the top cover 12 can be rotated, which facilitates the positioning and orientation adjustment of the sub-component module 4, simplifies the operation, and ensures that there are no blind spots in the positioning position.

[0073] In some embodiments, the top door 122 is a side sliding door. Specifically, when the top door 122 is opened, it slides to one side of the radial opening 1211. In this way, the top door 122 is easy to open and close and occupies little space.

[0074] In some embodiments, the first factory building 11, the roof 121, and the second factory building 2 all adopt a truss structure, and the top door 122 adopts a structural component.

[0075] The first workshop 1 and the second workshop 2 adopt a truss structure, which is stable, strong, and easy to install. It can realize multiple functions such as visualization and sealing protection, and has low maintenance and use costs.

[0076] In some embodiments, the truss structure includes a truss body and panels disposed on the truss body. Specifically, the truss bodies of the first plant main body 11 and the second plant 2 are integral truss structures mainly connected by members, including horizontal members, vertical members, horizontal bars, vertical bars, and diagonal supports. The horizontal members, vertical members, horizontal bars, vertical bars, and diagonal supports can be made of profiles made of materials such as galvanized carbon steel, stainless steel, and aluminum alloy. The panels of the first plant main body 11 and the second plant 2 can be made of materials such as honeycomb aluminum panels, color steel tiles, and acrylic plexiglass, depending on the actual situation. The connecting parts between members and between members and panels include fasteners and connecting bolts. The truss structure of the main body 121 includes: horizontal bars, vertical bars, legs with casters 1212, and rotating tracks. The horizontal bars, vertical bars, and rotating tracks can be made of materials such as galvanized carbon steel, stainless steel, or aluminum alloy. The legs with casters 1212 are structural components, including the legs themselves, the caster 1212 rotating mechanism, and connecting parts. The legs can be made of materials such as galvanized carbon steel, stainless steel, or aluminum alloy. The caster 1212 rotating mechanism is made of materials such as rubber or polyethylene. The connecting parts include bolts, nuts, and washers. The panel of the main body 121 can be made of materials such as honeycomb aluminum panels, color steel sheets, or acrylic glass, depending on the actual situation. The top door 122 is a structural component, including a limiting device, a horizontal bar, a vertical bar, and a panel. The limiting device, horizontal bar, and vertical bar can be made of profiles made of materials such as galvanized carbon steel, stainless steel, or aluminum alloy. The top door panel can be made of materials such as honeycomb aluminum plate, color steel tile, or acrylic glass, depending on the actual situation.

[0077] The first workshop 1 and the second workshop 2 adopt a truss structure, which is stable, strong, and easy to install. It can be used with panels made of materials such as honeycomb aluminum panels, color steel tiles, and acrylic glass, and can achieve multiple functions such as visualization and sealing protection, while having low maintenance and use costs.

[0078] In some embodiments, the air inlet duct interface 25 and / or the fresh air interface 31 are equipped with a check valve (not shown) to prevent air backflow.

[0079] The second aspect of this invention proposes a cleaning and protection method for the main assembly of a fusion device.

[0080] like Figures 2 to 9 As shown, the fusion device main assembly cleaning and protection method according to the second aspect embodiment of the present invention employs the fusion device main assembly cleaning and protection device as described in the first aspect embodiment of the present invention, and ensures that the radial opening 1211 and the side opening 111 are aligned on the horizontal projection plane; the method includes the following steps:

[0081] S1: After cleaning the exposed surfaces of the pre-assembled sub-module 4 in the cleanliness control area of ​​the pre-assembly hall, cover the sub-module 4 with a protective film to prevent it from being contaminated during the process of being hoisted out of the pre-assembly hall and into the second workshop 2.

[0082] S2: Open the top of the cleanliness control area of ​​the pre-assembly hall, lower the hook of the crane's sling and connect it to the balance beam of sub-component module 4; the crane is an internal crane of the fusion device plant, the sling is suspended below the crane, and the lower end of the sling has a hook; after the top cover of the cleanliness control area of ​​the pre-assembly hall is opened, lower the height of the hook, and use a pin to connect the center hole of the hook to the connecting pin hole on the balance beam of sub-component module 4. This connection is convenient and reliable.

[0083] S3: Use a crane to move the sub-component module 4 to a position close to the first sealed door 21, and introduce fresh air into the second workshop 2 through the air inlet pipe interface 25 to ensure that the second workshop 2 is under positive pressure. This allows the gas in the second workshop 2 to overflow from the second top opening 24, thus expelling the original air in the second workshop 2 and preventing dust from naturally mixing into the second workshop 2, thereby maintaining the cleanliness of the second workshop 2.

[0084] S4: Open the first sealed door 21. After the crane moves the sub-component module 4 into the second workshop 2, close the first sealed door 21 in time. It should be noted that after the first sealed door 21 is opened, the sub-component module 4 and the hook pass through the doorway of the first sealed door 21. At the same time, the sling passes through the second top opening 24 to ensure that the sub-component module 4 is in a clean environment in the second workshop 2.

[0085] S5: Remove the protective film on sub-component module 4, and clean the exposed surfaces of sub-component module 4 and lifting slings again to ensure the cleanliness of sub-component module 4 and lifting slings when they enter the first workshop 1 and biological shielding wall 3. Introduce fresh air into the biological shielding wall 3 through the fresh air inlet 31 reserved on the biological shielding wall 3 to make the biological shielding wall 3 a positive pressure state. In this way, when the second sealed door 22 and the top door 122 are opened later, external dust can be prevented from naturally mixing into the first workshop 1 and biological shielding wall 3, thus ensuring the cleanliness of the first workshop 1 and the biological shielding device, thereby ensuring the cleanliness of sub-component module 4 during the hoisting process and the cleanliness of existing components in the biological shielding wall 3.

[0086] S6: Open the second sealed door 22 and the top door 122 of the top cover 12; use a crane to move the sub-component module 4 from the second workshop 2 into the first workshop 1. After the crane moves the sub-component module 4 into the first workshop 1, close the second sealed door 22 in time.

[0087] S7: By moving the crane, rotating the top cover 12, and lowering the slings, the sub-component module 4 is placed in the installation position; because the fresh air introduced into the biological shielding wall 3 creates a positive pressure inside the biological shielding wall 3, the airflow overflows outward from the radial opening 1211 of the top cover body 121, which can prevent external dust from falling into the biological shielding wall 3 naturally, thus ensuring the cleanliness of the sub-component module 4 being hoisted and installed and the existing components inside the biological shielding wall 3.

[0088] S8: By lifting with slings, moving with a crane and rotating the top cover 12, remove the slings from inside the bio-shield wall 3, close the top door 122 and the second sealing door 22 in time, and then stop the supply of fresh air into the bio-shield wall 3.

[0089] Since the fusion device main assembly cleaning and protection method of the second aspect embodiment of the present invention adopts the fusion device main assembly cleaning and protection device of the first aspect embodiment of the present invention, the fusion device main assembly cleaning and protection method of the second aspect embodiment of the present invention has the same technical effect as the fusion device main assembly cleaning and protection device of the first aspect embodiment of the present invention, and will not be described again here.

[0090] In some embodiments, in step S1, the protective film is a polyethylene film, which can effectively prevent the sub-component module 4 from being contaminated during the process of being hoisted out of the pre-assembly hall and into the second workshop 2. Polyethylene film is also low in cost. Preferably, the polyethylene film is a polyethylene film with a low halogen content.

[0091] In some embodiments, in step S2, such as Figure 7 As shown, a crane is used to lift sub-module 4 to its bottom, detach it from the pre-assembled support, and conduct a lifting test to check the crane performance and the connection of the slings, so as to ensure the safe lifting of sub-module 4.

[0092] In some embodiments, step S3 specifically involves: using a crane to lift the sub-component module 4 to a suitable height and moving it toward the first sealed door 21; once the sub-component module 4 is near the first sealed door 21, adjusting the lifting height so that the top of the hook of the sling is lower than the top surface of the second workshop 2, so that when the sub-component module 4 is subsequently moved into the second workshop 2, the sling of the sling passes through the second top surface opening 24, ensuring that the hook is located in the second workshop 2, thereby ensuring that the sub-component module 4 is in a clean environment in the second workshop 2; using a clean air duct to connect the fresh air unit to the air inlet duct interface 25, adjusting the fresh air volume to create a positive pressure inside the second workshop 2, so that the gas in the second workshop 2 overflows through the second top surface opening 24, thus expelling the original air in the second workshop 2, while preventing dust from naturally mixing into the second workshop 2, and maintaining the cleanliness of the second workshop 2.

[0093] In some embodiments, step S5 specifically involves: pre-cleaning personnel and tools, and entering the second workshop 2 through the sealed small door 23; then, removing the protective film on the sub-component module 4, and cleaning the exposed surfaces of the sub-component module 4 and the lifting slings again; this ensures the cleanliness of the sub-component module 4 and the lifting slings when they subsequently enter the first workshop 1 and the biological shielding wall 3.

[0094] In some embodiments, such as Figure 8 and Figure 9 As shown, step S7 specifically involves: adjusting the distance between the sub-component module 4 and the center of the biological shielding wall 3 by moving the trolley according to the orientation of the sub-component module 4; adjusting the orientation angle of the sub-component module 4 within the biological shielding wall 3 by coordinating the rotation of the top cover 12; and adjusting the orientation angle of the sub-component module 4 itself by rotating the hook, until the sub-component module 4 is moved directly above the installation position. The sub-component module 4 is then lowered, and its position is continuously adjusted until it is placed on the support at the installation position. Finally, the connection between the balance beam and the hook is released. Therefore, the operation of adjusting the orientation of the sub-component module 4 is simple and ensures that there are no blind spots in the installation position.

[0095] In some embodiments, step S8 specifically involves: lifting with a hook, moving the trolley, and rotating the top cover 12 to move the hook to the position height of the second workshop 2; opening the second sealed door 22 and moving the hook into the second workshop 2; closing the top door 122 and the second sealed door 22; then stopping the supply of fresh air to the bio-barrier wall 3; opening the first sealed door 21; moving the hook outside the second workshop 2; closing the first sealed door 21; and stopping the supply of fresh air into the second workshop 2. This allows the slings and trolley to return to their initial positions, facilitating the next lifting of the sub-component module 4. Simultaneously, timely closing of the top door 122 and the second sealed door 22 helps maintain the cleanliness of the first workshop 1 and the bio-barrier wall 3.

[0096] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cleaning and protection device for the main assembly of a fusion device, characterized in that, include: The first workshop is located on top of the biological shielding wall in the main hall and is vertically connected to the biological shielding wall. The first workshop includes a main body and a roof. The main body of the first workshop has a side opening facing the pre-assembly hall and a first top opening connected to the upper end of the side opening. The roof is normally closed and rotatably covers the entire top of the main body of the first workshop, including a roof body and a top door. The roof body has a radial opening, and the top door is normally closed and openable at the radial opening. The second workshop is located on the floor level of the main hall, at the same height as the top of the biological shielding wall, and extends from the side of the first workshop facing the pre-assembly hall toward the pre-assembly hall. At each end of the second workshop are a normally closed but openable first sealed door and a second sealed door, respectively. The first sealed door is located away from the first workshop relative to the second sealed door, and the second sealed door is located at the side opening. A normally closed but openable small sealed door is provided on the side of the second workshop. The top surface of the second workshop has a second top opening extending from one end to the other, which is directly opposite the side opening on the horizontal projection plane. An air inlet duct interface for introducing fresh air is provided on one or both sides of the second workshop. The biological shielding wall has some windows reserved as fresh air inlets.

2. The fusion device main assembly cleaning and protection device according to claim 1, characterized in that, The main body of the top cover is provided with spaced casters, and the top of the main body of the first factory building is provided with a rotating track, and the casters cooperate with the rotating track.

3. The fusion device main assembly cleaning and protection device according to claim 1, characterized in that, The top door is a side sliding door.

4. The fusion device main assembly cleaning and protection device according to claim 3, characterized in that, The main body of the first factory building, the main body of the roof, and the second factory building all adopt a truss structure.

5. The fusion device main assembly cleaning and protection device according to claim 4, characterized in that, The truss structure includes a truss body and a panel disposed on the truss body.

6. A method for cleaning and protecting the main assembly of a fusion device, characterized in that, The cleaning and protection device for the main assembly of the fusion device as described in any one of claims 1 to 5 is used, and the radial opening and the side opening are aligned on the horizontal projection plane; the method includes the following steps: S1: After cleaning the exposed surfaces of the pre-assembled sub-component modules in the cleanliness control area of ​​the pre-assembly hall, cover the sub-component modules with a protective film. S2: Open the top of the cleanliness control area of ​​the pre-installed hall, lower the hook of the crane's sling and connect it to the balance beam of the sub-component module; S3: Use the crane to move the sub-component module to a position close to the first sealed door, and introduce fresh air into the second workshop through the air inlet pipe interface to ensure that the second workshop is under positive pressure; S4: Open the first sealed door, and after the crane moves the sub-component module into the second workshop, close the first sealed door in time; S5: Remove the protective film on the sub-component module, and clean the exposed surface of the sub-component module and the sling again; introduce fresh air into the biological shielding wall through the fresh air interface reserved on the biological shielding wall to make the inside of the biological shielding wall a positive pressure state; S6: Open the second sealed door and the top door of the top cover; use the crane to move the sub-component module from the second workshop into the first workshop, wherein, after the crane moves the sub-component module into the first workshop, close the second sealed door in time; S7: By moving the crane, rotating the top cover, and lowering the slings, the sub-component module is placed in the installation position; S8: By lifting with the slings, moving with the trolley, and rotating with the top cover, the slings are removed from inside the bio-shield wall. The top door and the second sealed door are closed in time, and then the supply of fresh air into the bio-shield wall is stopped.

7. The cleaning and protection method for the main assembly of a fusion device according to claim 6, characterized in that, In step S1, the protective film is a polyethylene film.

8. The cleaning and protection method for the main assembly of a fusion device according to claim 6, characterized in that, In step S2, the overhead crane is used to lift the sub-component module to the bottom of the sub-component module, detach it from the pre-assembled support, and conduct a lifting test to check the performance of the overhead crane and the connection status of the lifting slings.

9. The cleaning and protection method for the main assembly of a fusion device according to claim 6, characterized in that, Step S3 specifically involves: using the crane to lift the sub-component module to a suitable height and moving it toward the first sealed gate. Once the sub-component module has moved close to the first sealed gate, the lifting height is adjusted so that the top of the hook of the sling is lower than the top surface of the second factory building. Connect the fresh air unit to the air inlet duct using a clean air duct, and adjust the fresh air volume to create positive pressure in the second workshop.

10. The cleaning and protection method for the main assembly of a fusion device according to claim 6, characterized in that, Step S5 specifically involves: pre-cleaning personnel and tools, and entering the second workshop through the sealed small door; then, removing the protective film on the sub-component module, and cleaning the exposed surfaces of the sub-component module and the lifting slings again.

11. The cleaning and protection method for the main assembly of a fusion device according to claim 6, characterized in that, Step S7 specifically involves: adjusting the distance between the sub-component module and the center of the biological shielding wall by moving the trolley according to the orientation of the sub-component module; adjusting the orientation angle of the sub-component module within the biological shielding wall by rotating the top cover; and adjusting the orientation angle of the sub-component module itself by rotating the hook, until the sub-component module is moved directly above the installation position. The sub-component module is then lowered and its position continuously adjusted until it is placed on the support at the installation position, and the connection between the balance beam and the hook is released.

12. The cleaning and protection method for the main assembly of a fusion device according to claim 6, characterized in that, Step S8 specifically involves: lifting the hook, moving the trolley, and rotating the top cover to move the hook to the position height of the second factory building; opening the second sealed door and moving the hook into the second factory building; closing the top door and the second sealed door; stopping the supply of fresh air to the bio-shield wall; opening the first sealed door; moving the hook outside the second factory building; closing the first sealed door; and stopping the supply of fresh air into the second factory building.

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