Nuclear island building structure

Abstract

The application provides a nuclear island plant structure, which comprises a reactor plant, a fuel plant, a transfer platform, a first conveying assembly and a second conveying assembly; the reactor plant and the fuel plant are arranged along a first direction, and the transfer platform and the fuel plant are arranged along a second direction; the first conveying assembly is connected with the reactor plant and the transfer platform, and is configured to convey equipment between the reactor plant and the transfer platform; the second conveying assembly is connected with the fuel plant and the transfer platform, and is configured to convey fuel between the fuel plant and the transfer platform; wherein the first direction and the second direction are perpendicular to each other. The nuclear island plant structure provided by the application can avoid the interruption effect of the equipment transportation channel and the spent fuel transportation channel on process arrangement, personnel passage and equipment transportation.

Description

Technical Field

[0001] This application relates to the field of nuclear power technology, and in particular to a nuclear island plant structure. Background Technology

[0002] Pressurized water reactors (PWRs), as the current mainstream nuclear power technology, provide a stable and reliable energy supply. In the layout design of PWR nuclear power plants, equipment transport corridors, spent fuel transport corridors, fuel transfer corridors, and main steam / feedwater pipe corridors are all important factors that can cause interruptions in the process layout of the nuclear island building. Among these, equipment transport corridors and spent fuel transport corridors are the two most significant sources of disruption.

[0003] Currently, the equipment transport corridor is connected to the gates on the reactor building's containment vessel. The spent fuel transport corridor is located on the ground floor, with hoisting openings in the fuel handling hall of the fuel building connecting to the ground floor to facilitate the transfer of spent fuel transport containers. However, the separate arrangement of the equipment transport corridor and the spent fuel transport corridor results in significant space waste, leading to disruptions in the process layout of the controlled area and interruptions in personnel access and equipment transport. Summary of the Invention

[0004] This application provides a nuclear island building structure that can avoid the disruption effects of equipment transport channels and spent fuel transport channels on process layout, personnel access, and equipment transportation.

[0005] This application provides a nuclear island building structure, including a reactor building, a fuel building, a transfer platform, a first transfer assembly, and a second transfer assembly;

[0006] The reactor building and fuel building are arranged along the first direction, and the transfer platform and fuel building are arranged along the second direction;

[0007] The first conveying assembly connects the reactor building and the transfer platform, and is configured to convey equipment between the reactor building and the transfer platform.

[0008] The second conveying assembly connects the fuel plant and the transfer platform, and is configured to convey fuel between the fuel plant and the transfer platform;

[0009] The first direction and the second direction are perpendicular to each other.

[0010] In one embodiment, the first conveying assembly includes a first track and a first transport vehicle disposed on the first track, and the second conveying assembly includes a second track and a second transport vehicle disposed on the second track. The first track connects the interior of the reactor building with the transfer platform, and the second track connects the interior of the fuel building with the transfer platform.

[0011] In one embodiment, the second track extends along a second direction, and the extension direction of the first track is inclined to the extension direction of the second track.

[0012] The fuel building contains multiple functional pools, and along the first direction, the second track is located on the side of all functional pools away from the reactor building.

[0013] In one embodiment, all functional pools are arranged in multiple rows.

[0014] In one embodiment, the multiple functional pools are a flushing pool, a tank filling pool, a transfer pool, and a spent fuel water pool;

[0015] Along the second direction, the tank filling pool and transfer pool are located on one side of the spent fuel water pool, and the flushing pool is located on the side of the tank filling pool away from the spent fuel water pool.

[0016] Along the first direction, the portion of the second track located within the fuel building is situated on the side of the flushing pool away from the reactor building.

[0017] In one embodiment, the nuclear island building structure also includes a transfer crane configured to transfer equipment and fuel between a transfer platform and the ground level.

[0018] In one embodiment, the transfer platform includes a first support platform and a second support platform arranged at an interval between the upper and lower parts;

[0019] The first conveying assembly connects the reactor building and the first support platform, and the second conveying assembly connects the fuel building and the second support platform.

[0020] In one embodiment, a first support platform is located above a second support platform, and a hoisting port is provided through the first support platform. The end of the second conveying assembly away from the fuel plant extends to below the hoisting port.

[0021] In one embodiment, the transfer platform is provided with an equipment storage area and a fuel storage area at intervals. The end of the first transfer component away from the reactor building extends into the equipment storage area, and the end of the second transfer component away from the fuel building extends into the fuel storage area.

[0022] In one embodiment, a purification equipment room is provided below the transfer platform.

[0023] The nuclear island building structure provided in this application embodiment includes a transfer platform located outside the reactor building and fuel building, at an angle to the reactor building. A first conveying assembly connects the reactor building and the transfer platform, enabling the transport of equipment between them. A second conveying assembly connects the fuel building and the transfer platform, enabling the transport of fuel between them. This design allows the first conveying assembly to define an equipment transport channel and the second conveying assembly to define a spent fuel transport channel. These two channels converge at the transfer platform, facilitating a compact layout of the nuclear island building, improving constructability and maintainability. Furthermore, neither the equipment transport channel nor the spent fuel transport channel passes through other buildings, avoiding disruptions to process layout, personnel access, and equipment transport. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the nuclear island building structure provided in the embodiments of this application. Figure 1 ;

[0026] Figure 2 A schematic diagram illustrating the cooperation between the transfer platform and the transfer crane provided in the embodiments of this application;

[0027] Figure 3 A schematic diagram of a transfer platform provided in an embodiment of this application;

[0028] Figure 4 A schematic diagram of the nuclear island building structure provided in the embodiments of this application. Figure 2 .

[0029] Figure label:

[0030] 100. Reactor building;

[0031] 200. Fuel plant; 210. Functional pool; 211. Washing pool; 212. Tanking pool; 213. Transfer pool; 214. Spent fuel water pool;

[0032] 300. Transfer platform; 310. First support platform; 311. Lifting port; 320. Second support platform; 330. Equipment storage area; 340. Fuel storage area;

[0033] 400. First conveying assembly;

[0034] 500. Second conveying assembly;

[0035] 600. Transfer crane;

[0036] 700. Cleanroom. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] Pressurized water reactors (PWRs), as the current mainstream nuclear power technology, provide a stable and reliable energy supply. In the layout design of PWR nuclear power plants, equipment transport corridors, spent fuel transport corridors, fuel transfer corridors, and main steam / feedwater corridors are all significant factors that can cause interruptions in the process layout of the nuclear island. Among these, equipment transport corridors and spent fuel transport corridors are the two most impactful interruption factors. Simultaneously, these corridors are crucial determinants of the overall layout of the reactor building and fuel building, influencing the constructability and maintainability of the entire nuclear island layout design, and to a certain extent, determining the construction cost and operational economics of the nuclear power plant.

[0042] Currently, the CPR1000 reactor building containment is connected to an external gantry via equipment gates. This gantry defines an equipment transport channel, which is located on the west side of the nuclear island building. The spent fuel transport channel is located on the ground floor of the fuel building and connects to the fuel operations hall via hoisting holes to facilitate the transfer of spent fuel transport containers. This channel is located on the southwest side of the nuclear island building. The EPR reactor building containment is connected to the external fuel building via equipment gates. The equipment transport channel passes through the fuel building and is located on the east side of the fuel building. The spent fuel transport channel is located on the ground floor of the fuel building and connects to the fuel operations hall via hoisting holes to facilitate the transfer of spent fuel transport containers. This channel is located on the west side of the fuel building. The AP1000 reactor building main equipment is hoisted using an open-top method, eliminating the need for a separate transport channel. Other equipment is transported via equipment gates connected to the auxiliary buildings, with the transport channel located in the middle of the auxiliary buildings. The spent fuel transport corridor is located on the ground floor of the fuel building. It connects to the fuel operations hall via hoisting openings to facilitate the transfer of spent fuel transport containers. The entire corridor is located on the west side of the auxiliary building. The HPR1000 reactor building containment structure is connected to the external safety building via equipment gates. The equipment transport corridor is located on the west side of the nuclear island building. The spent fuel transport corridor is also located on the ground floor of the fuel building. It connects to the fuel operations hall via hoisting openings to facilitate the transfer of spent fuel transport containers. The entire corridor is located on the southwest side of the nuclear island building.

[0043] However, in the aforementioned pressurized water reactor nuclear power plants, equipment transport corridors and spent fuel transport corridors are designed separately and located in the core area of ​​the nuclear island building. Both require significant space, resulting in substantial wasted space and disruptions to the process layout in the controlled area, as well as personnel and equipment transport routes. This hinders the compactness of the process layout and impedes the convenience of transportation and access. It becomes a key obstacle to achieving a compact nuclear island layout and has a significant adverse impact on the layout pattern of the nuclear island building.

[0044] Furthermore, due to the large load-bearing capacity and long length of the containers transporting spent fuel, a large vehicle parking area needs to be planned on the ground floor of the fuel plant. This parking area defines the route for transporting spent fuel. The requirements for the hoisting openings and the vehicle parking area "interrupt" the fuel plant in both plan and elevation, making it inconvenient to connect the various functional areas of other process systems within the plant.

[0045] To address the aforementioned issues, this application provides a nuclear island building structure with a transfer platform located outside the reactor building and fuel building, at an angle to the reactor building. A first conveying assembly connects the reactor building and the transfer platform, enabling equipment transport between them. A second conveying assembly connects the fuel building and the transfer platform, enabling fuel transport between them. This design allows the first conveying assembly to define an equipment transport channel and the second conveying assembly to define a spent fuel transport channel. These two channels converge at the transfer platform, facilitating a compact layout of the nuclear island building, improving constructability and maintainability. Furthermore, neither the equipment transport channel nor the spent fuel transport channel passes through other buildings, avoiding disruptions to process layout, personnel access, and equipment transport.

[0046] The specific structure of the nuclear island building provided in the embodiments of this application will be described below with reference to the accompanying drawings.

[0047] Reference Figure 1 As shown in the figure, this application provides a nuclear island building structure, including a reactor building 100, a fuel building 200, a transfer platform 300, a first conveying assembly 400, and a second conveying assembly 500.

[0048] The reactor building 100 and the fuel building 200 are arranged along a first direction, and the transfer platform 300 and the fuel building 200 are arranged along a second direction. The first and second directions are perpendicular to each other. Specifically, the first direction is... Figure 1 The direction indicated by the X-axis is the second direction. Figure 1 The direction indicated by the Y-axis. The transfer platform 300 is located at an angle to the reactor building 100, and the transfer platform 300 can be connected to both the reactor building 100 and the fuel building 200.

[0049] The first conveying assembly 400 connects the reactor building 100 and the transfer platform 300, and is configured to transport equipment between the reactor building 100 and the transfer platform 300. A containment structure is located outside the reactor building 100, and the first conveying assembly 400 passes through a gate on the containment structure. The first conveying assembly 400 thus defines the equipment transport channel, avoiding passage through any other buildings besides the reactor building 100. This reduces the impact of the equipment transport channel on the process layout, personnel access, and equipment transport in the nuclear island control area, and avoids wasted space.

[0050] The use of the first transport assembly 400 transport equipment, compared to the AP1000 reactor type, means that if the steam generator or top cover needs to be replaced later, the containment dome does not need to be cut off, which reduces operational risks and costs, and reduces the risk of radioactive leakage.

[0051] The second conveying assembly 500 connects the fuel plant 200 and the transfer platform 300. The second conveying assembly 500 is configured to convey fuel between the fuel plant 200 and the transfer platform 300. Schematic, a valve is installed on the side wall of the fuel plant 200, through which the second conveying assembly 500 passes. New fuel on the transfer platform 300 can be delivered to the fuel plant 200 via the second conveying assembly 500, and spent fuel in the fuel plant 200 can be delivered to the transfer platform 300 via the second conveying assembly 500. The second conveying assembly 500 defines a spent fuel outbound transport channel, avoiding passage through any other plant buildings besides the fuel plant 200, thus preventing any "disruption effect" on the process layout, personnel access, and equipment transportation in the area.

[0052] It is worth mentioning that the fuel plant 200 includes a fuel handling hall. While enabling the transport of spent fuel, it eliminates the need for a lifting hole penetrating the ground floor in the fuel handling hall, and the ground floor of the fuel plant 200 does not require a vehicle parking area. This avoids the need to cut into the fuel plant 200 by the lifting hole and vehicle parking area, facilitating the layout of other process systems below the fuel handling hall.

[0053] In this embodiment, the equipment transport channel and the spent fuel transport channel can converge at the transfer platform 300. The transport of equipment and fuel shares a single transfer platform 300, which facilitates a compact layout of the nuclear island plant, improves constructability and maintainability, and avoids disruptions to process layout, personnel access, and equipment transport caused by either the equipment transport channel or the spent fuel transport channel. This avoidance of related layout disruptions optimizes the layout of the nuclear island plant and creates favorable conditions for the centralized placement and ventilation of high-level radioactive materials.

[0054] In addition, the transfer platform 300 can also serve as a material transfer and temporary storage platform for reactor building 100 or fuel building 200, improving the convenience of maintenance within the corresponding building.

[0055] In one embodiment, such as Figure 1 As shown, the first conveying assembly 400 includes a first track and a first transport vehicle disposed on the first track, and the second conveying assembly 500 includes a second track and a second transport vehicle disposed on the second track. The first track connects the interior of the reactor building 100 with the transfer platform 300, and the second track connects the interior of the fuel building 200 with the transfer platform 300.

[0056] Specifically, one end of the first track is located on the transfer platform 300, and the other end extends into the reactor building 100. The first transport vehicle can travel along the extension direction of the first track. One end of the second track is located on the transfer platform 300, and the other end extends into the fuel building 200. The second transport vehicle can travel along the extension direction of the second track. Both the first and second tracks are straight tracks, so fuel and equipment do not need to be transported by turning.

[0057] In this embodiment, the first transport vehicle can carry equipment from the reactor building 100 and move between the transfer platform 300 and the reactor building 100, while the second transport vehicle can carry new / spent fuel and move between the transfer platform 300 and the fuel building 200. This achieves reliable transportation of equipment and fuel.

[0058] The equipment is transported via a first transport vehicle on the first track. Compared to EPR reactors, the equipment transport route is not enclosed within the radioactive control area, thus avoiding the interruption of the control area space above the main control panel, disruption of related process layouts, and significant space waste. The spent fuel transport containers do not require lifting devices, ensuring higher reliability, and eliminating the need for a dedicated transfer facility.

[0059] In a specific embodiment, such as Figure 1 As shown, the second track extends along the second direction, and the extension direction of the first track is inclined to the extension direction of the second track. The angle between the extension directions of the first and second tracks can be set as needed and is not limited here.

[0060] The fuel building 200 has multiple functional pools 210 inside, and along the first direction, the second track is located on the side of all functional pools 210 away from the reactor building 100.

[0061] During transport, the fuel passes through multiple functional pools 210 located between the first and second tracks, ensuring a gap between them and preventing interference. Furthermore, the equipment gates of the first track and the reactor building 100 are positioned at an angle to the outside of the fuel building 200, where process communication requirements are weaker, ensuring that the equipment transport channel does not affect the process area of ​​the fuel building 200.

[0062] like Figure 1 As shown, all functional pools 210 are arranged in multiple rows.

[0063] In related technologies, all functional pools 210 are arranged linearly along a first direction. The large space occupied by all functional pools 210 in this direction not only wastes space but also results in a significant distance between the first and second tracks. In this embodiment, arranging all functional pools 210 in multiple rows reduces the space occupied by them in the first direction. While avoiding interference between the first and second tracks, this shortens the distance between them, which helps reduce the area of ​​the transfer platform 300 and thus the footprint of the nuclear island plant.

[0064] In a specific embodiment, such as Figure 1 As shown, the multiple functional pools 210 are a flushing pool 211, a canning pool 212, a transfer pool 213, and a spent fuel water pool 214. Those skilled in the art will understand that when the spent fuel transport container is located in the flushing pool 211, operations such as sealing, cleaning, and drying can be performed on the spent fuel transport container; the canning pool 212 is used for canning operations during spent fuel transport; the transfer pool 213 is used for the transfer of new / spent fuel between the reactor building 100 and the fuel building 200; and the spent fuel water pool 214 is used to store spent fuel unloaded from the reactor, and also to store new fuel intended for loading into the reactor.

[0065] Along the second direction, the filling tank 212 and the transfer tank 213 are located on one side of the spent fuel water pool 214, while the flushing tank 211 is located on the side of the filling tank 212 opposite to the spent fuel water pool 214. That is to say, the flushing tank 211, the filling tank 212, the transfer tank 213, and the spent fuel water pool 214 are arranged in three rows, and the multiple functional pools 210 are compactly arranged, effectively reducing the space occupied by the multiple functional pools 210 in the first direction. Figure 1 As shown, along the first direction, the portion of the second track located within the fuel building 200 lies on the side of the flushing pool 211 facing away from the reactor building 100. The close proximity of the second track to the flushing pool 211 facilitates the hoisting of spent fuel transport containers containing spent fuel from the flushing pool 211 onto the second transport vehicle on the second track.

[0066] In one embodiment, such as Figure 1 and Figure 2 As shown, the nuclear island plant structure also includes a transfer crane 600, which is configured to transfer equipment and fuel between the transfer platform 300 and the ground level.

[0067] For example, a gantry crane can be used as the transfer crane 600. Illustratively, the operating range of the transfer crane 600 covers the entire transfer platform 300. Since both the first conveying assembly 400 and the second conveying assembly 500 are connected to the transfer platform 300, the transfer crane 600 can transfer equipment between the transfer platform 300 and the ground level, as well as transfer fuel between the transfer platform 300 and the ground level.

[0068] In this embodiment, while eliminating the adverse effects of equipment transportation channels and spent fuel transportation channels on the layout of the nuclear island plant, related hoisting needs can be coordinated, avoiding the addition of new hoisting equipment and controlling the construction cost of the nuclear island plant.

[0069] In one embodiment, such as Figure 2 As shown, a purification equipment room 700 is located below the transfer platform 300.

[0070] Those skilled in the art will understand that the cleanroom 700 is equipped with purification equipment to filter and purify the air. Placing the transfer platform 300 above the cleanroom 700 can reduce the area occupied by the transfer platform 300 and the cleanroom 700, thus facilitating a reduction in the floor space of the nuclear island plant.

[0071] In one possible implementation, such as Figure 1 and Figure 3 As shown, the transfer platform 300 includes a first support platform 310 and a second support platform 320 arranged vertically at intervals. The first support platform 310 and the second support platform 320 can be supported by a support structure.

[0072] The first conveying assembly 400 connects the reactor building 100 and the first support platform 310, and the second conveying assembly 500 connects the fuel building 200 and the second support platform 320. The first conveying assembly 400 allows for the transfer of equipment from the reactor building 100 to the first support platform 310, and the second conveying assembly 500 allows for the transfer of fuel between the fuel building 200 and the second support platform 320.

[0073] In this embodiment, the transfer platform 300 has a double-layer structure. The first support platform 310 and the second support platform 320 can respectively place equipment and fuel, which is beneficial to control the area of ​​the transfer platform 300 and reduce the footprint of the nuclear island plant.

[0074] In a specific embodiment, such as Figure 1 and Figure 3 As shown, the first support platform 310 is located above the second support platform 320. A hoisting port 311 is provided through the first support platform 310. The end of the second conveying assembly 500 away from the fuel plant 200 extends to the bottom of the hoisting port 311.

[0075] Schematic illustration: The nuclear island building structure also includes hoisting equipment for transferring equipment and fuel between the transfer platform 300 and the ground level. The hoisting equipment can directly lift equipment on the first support platform 310. When the second conveying assembly 500 transfers fuel to the position of the second support platform 320 directly opposite the hoisting port 311, the hoisting equipment can lift the fuel through the hoisting port 311 on the first support platform 310.

[0076] With the above setup, equipment on the first support platform 310 and fuel on the second support platform 320 can be hoisted to transfer equipment and fuel between the transfer platform 300 and the ground level.

[0077] In other embodiments, the first support platform 310 is located above the second support platform 320, the second support platform 320 having an extension extending beyond the first support platform 310, and the end of the second conveying assembly 500 away from the fuel assembly extending into the extension. This arrangement also enables the hoisting of equipment on the first support platform 310 and fuel on the second support platform 320.

[0078] In one embodiment, such as Figure 4 As shown, the transfer platform 300 is provided with an equipment storage area 330 and a fuel storage area 340 at intervals. The end of the first transfer assembly 400 away from the reactor building 100 extends to the equipment storage area 330, and the end of the second transfer assembly 500 away from the fuel building 200 extends to the fuel storage area 340.

[0079] Understandably, the first conveying assembly 400 can transport equipment from the reactor building 100 to the equipment storage area 330 of the transfer platform 300, where the equipment can be temporarily stored; the second conveying assembly 500 can transport fuel from the fuel building 200 to the fuel storage area 340 of the transfer platform 300, where the fuel can be temporarily stored. Optionally, a removable partition wall can be installed between the equipment storage area 330 and the fuel storage area 340.

[0080] With the above setup, the equipment and fuel can be temporarily stored in different areas of the transfer platform 300, avoiding interference between the equipment and fuel on the transfer platform 300, and facilitating the transfer of equipment and fuel between the transfer platform 300 and the ground level.

[0081] The nuclear island building structure provided in this embodiment has the following equipment and spent fuel transportation process flow:

[0082] 1) When transporting equipment out of the reactor building 100, the first transport vehicle on the first track first transports the equipment from the reactor building 100 to the transfer platform 300. Then, the transfer crane 600 above the transfer platform 300 lifts the equipment from the transfer platform 300 to a transport vehicle on the ground level on the side of the transfer platform 300. The internal transport process is the reverse of the aforementioned process.

[0083] 2) When transporting spent fuel from fuel plant 200, the second transport vehicle on the second guide rail first transports the spent fuel from fuel plant 200 to transfer platform 300; then, the transfer crane 600 above transfer platform 300 lifts it to a transport vehicle on the ground floor on the side of transfer platform 300. The internal transport process is the reverse of the aforementioned process.

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A nuclear island plant structure, characterized in that, Includes reactor building, fuel building, transfer platform, first transfer assembly and second transfer assembly; The reactor building and the fuel building are arranged along a first direction, and the transfer platform and the fuel building are arranged along a second direction; The first conveying assembly connects the reactor building and the transfer platform, and the first conveying assembly is configured to convey equipment between the reactor building and the transfer platform; The second conveying assembly connects the fuel plant and the transfer platform, and is configured to convey fuel between the fuel plant and the transfer platform; Wherein, the first direction and the second direction are perpendicular to each other.

2. The nuclear island plant structure according to claim 1, characterized in that, The first conveying assembly includes a first track and a first transport vehicle disposed on the first track, and the second conveying assembly includes a second track and a second transport vehicle disposed on the second track. The first track connects the interior of the reactor building to the transfer platform, and the second track connects the interior of the fuel building to the transfer platform.

3. The nuclear island plant structure according to claim 2, characterized in that, The second track extends along the second direction, and the extension direction of the first track is inclined to the extension direction of the second track; The fuel building has multiple functional pools inside, and along the first direction, the second track is located on the side of all the functional pools away from the reactor building.

4. The nuclear island plant structure according to claim 3, characterized in that, All the aforementioned functional pools are arranged in multiple rows.

5. The nuclear island plant structure according to claim 4, characterized in that, The multiple functional pools are a flushing pool, a tank filling pool, a transfer pool, and a spent fuel water pool; Along the second direction, the filling tank and the transfer tank are located on one side of the spent fuel water pool, and the flushing tank is located on the side of the filling tank opposite to the spent fuel water pool; Along the first direction, the portion of the second track located within the fuel building is situated on the side of the flushing pool opposite to the reactor building.

6. The nuclear island plant structure according to claim 1, characterized in that, The nuclear island building structure also includes a transfer crane configured to transfer the equipment and fuel between the transfer platform and the ground level.

7. The nuclear island plant structure according to claim 1, characterized in that, The transfer platform includes a first support platform and a second support platform arranged at intervals. The first conveying assembly connects the reactor building and the first support platform, and the second conveying assembly connects the fuel building and the second support platform.

8. The nuclear island plant structure according to claim 7, characterized in that, The first support platform is located above the second support platform, and a hoisting port is provided through the first support platform. The end of the second conveying component away from the fuel plant extends to below the hoisting port.

9. The nuclear island plant structure according to claim 1, characterized in that, The transfer platform is provided with an equipment storage area and a fuel storage area at intervals. The end of the first conveying component away from the reactor building extends into the equipment storage area, and the end of the second conveying component away from the fuel building extends into the fuel storage area.

10. The nuclear island building structure according to any one of claims 1-9, characterized in that, A purification equipment room is located below the transfer platform.

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