A fuel plant layout

Abstract

The application belongs to the technical field of nuclear power plant design, and particularly relates to a fuel plant layout scheme, which is adjacent to a reactor plant (1) of a nuclear power plant and comprises a plant enclosed by a first wall (7), a second wall (8), a third wall (9) and a fourth wall (10). The first wall (7) is connected perpendicularly to the second wall (8), the second wall (8) is connected perpendicularly to the third wall (9), the third wall (9) is connected perpendicularly to the fourth wall (10), and the first wall (7) and the fourth wall (10) are connected to the reactor plant (1) respectively. The plant comprises, from bottom to top, an underground second floor, an underground first floor, an aboveground first floor, an aboveground second floor, an aboveground third floor, an aboveground fourth floor and an aboveground fifth floor. Each floor is divided into a fuel operation area (2), an equipment area (3), a connecting area (4), a stairwell (5) and a passageway (6). The plant arranged according to the application has a small size and a small land occupation area, can resist airplane impact and has a low civil engineering investment cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of nuclear power plant design, and particularly relates to a fuel building layout scheme. BACKGROUND

[0002] At present, in the global nuclear power field, the main function of the fuel building of the nuclear power plant is to receive, store, inspect and transport new and spent fuel, and the related equipment and pipelines of the fuel operation and storage system are mainly arranged. According to the function partition and overall layout design of the nuclear island building system, other auxiliary system items can also be arranged in the fuel building.

[0003] The existing fuel building of each reactor type is arranged with relatively complicated items, the functions of the building are not independent, and many functions are considered. The building structure is poor in rationality, the volume is large, the land occupation area is large, the construction cost is high, the economy is poor, and the early fuel building does not have the ability to resist airplane impact. SUMMARY

[0004] The purpose of the present application is to provide an advanced compact fuel building layout scheme, which is independent in function, small in volume, small in land occupation area, good in site adaptability, designed with single-layer outer wall, capable of resisting airplane impact, low in civil engineering cost and high in economy under the premise of meeting safety.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is a fuel building layout scheme adjacent to a reactor building of a nuclear power plant, wherein the building is surrounded by a first wall, a second wall, a third wall and a fourth wall, the first wall is connected perpendicularly to the second wall, the second wall is connected perpendicularly to the third wall, the third wall is connected perpendicularly to the fourth wall, the first wall and the fourth wall are connected to the reactor building respectively, and the building comprises a second underground floor, a first underground floor, a first ground floor, a second ground floor, a third ground floor, a fourth ground floor and a fifth ground floor from bottom to top, each floor is divided into a fuel operation area, an equipment area, a connecting area, a stairwell and a passageway.

[0006] Further,

[0007] The stairwell is located at the connection between the first wall and the second wall;

[0008] The connecting area is located near the stairwell and is connected to the reactor building;

[0009] The equipment area and the fuel operation area are connected, and one side of the fuel operation area is connected to the fourth wall;

[0010] The passage includes an area between the connection zone and the stairwell, an area between the equipment zone and the connection zone, the reactor building, the second wall, and the third wall, and an area between the fuel handling zone and the connection zone, the reactor building, and the third wall.

[0011] Further, the underground second floor includes:

[0012] a first spare room provided in the connection zone;

[0013] a valve grinding room and an RFT filter pump room provided in the equipment zone, both of which are adjacent to the first spare room;

[0014] a hoist room and a shock isolation room provided in the equipment zone, both of which are adjacent to the third wall; the hoist room and the shock isolation room extend upward to the underground first floor;

[0015] an RFT001 pump room and an RFT002 pump room provided in the fuel handling zone, both of which are adjacent to the reactor building;

[0016] an RFT001 heat exchanger room and an RFT002 heat exchanger room provided in the fuel handling zone, both of which are adjacent to the third wall.

[0017] Further, the underground first floor includes:

[0018] a second spare room provided in the connection zone;

[0019] a fire extinguishing equipment room and a service compressed air room provided in the equipment zone, both of which are adjacent to the second spare room;

[0020] an RHR001 residual heat removal pump room and an RHR002 residual heat removal pump room provided in the fuel handling zone, both of which are adjacent to the reactor building;

[0021] a residual heat exchanger room provided in the fuel handling zone, the residual heat exchanger room being adjacent to the third wall.

[0022] Further, the above-ground first floor includes:

[0023] a TTB penetration provided in the connection zone;

[0024] an electrical equipment room and an electrical equipment cabinet room provided in the equipment zone, both of which are communicated and adjacent to the TTB penetration;

[0025] a CAM fan provided in the fuel handling zone, the CAM fan being adjacent to the reactor building;

[0026] a CAM penetration provided between the CAM fan and the reactor building;

[0027] a fuel receiving bay disposed through the equipment area and the fuel handling area, the fuel receiving bay proximate the third wall, the fuel receiving bay in communication with the hoist bay.

[0028] Further, the aboveground second level includes:

[0029] a residual throughway disposed in the connecting area;

[0030] a VFL supply air fan room disposed in the equipment area;

[0031] a spent fuel pool disposed in the fuel handling area, the spent fuel pool proximate the residual throughway and extending upwardly to the aboveground fourth level;

[0032] a equipment access, a third utility room, and a cask loading well disposed in the fuel handling area, the equipment access, the third utility room, and the cask loading well proximate the third wall, the equipment access and the cask loading well extending upwardly to the aboveground fourth level;

[0033] a fuel handling tunnel and a fuel handling vault disposed in the fuel handling area, the fuel handling vault connected to the fuel handling tunnel and proximate the fourth wall, the fuel handling tunnel connected to the reactor building, the fuel handling vault extending upwardly to the aboveground fourth level, and the fuel handling tunnel extending upwardly to the aboveground third level.

[0034] Further, the aboveground third level includes:

[0035] a VFL iodine exhaust fan room disposed in the connecting area;

[0036] a VFL exhaust fan room disposed in the equipment area proximate the VFL iodine exhaust fan room, and a CAM iodine exhaust fan room disposed in the equipment area proximate the third wall.

[0037] Further, the aboveground fourth level includes:

[0038] a CSV supply air throughway bay disposed in the connecting area;

[0039] a fresh fuel assembly receiving bay, a fresh fuel storage bay, and a fourth utility room disposed in the equipment area, the fresh fuel assembly receiving bay and the fresh fuel storage bay proximate the CSV supply air throughway bay, the fourth utility room proximate the third wall;

[0040] an electric hoist disposed in the fresh fuel assembly receiving bay;

[0041] a cask preparation well disposed in the fuel handling area proximate the third wall.

[0042] Further, the five above-ground layers include:

[0043] CSV exhaust through-penetrations arranged in the connecting area;

[0044] A fuel building operation hall arranged in the fuel operation area and the equipment area.

[0045] Further,

[0046] In the four above-ground layers, the equipment loading port, the container loading well and the container preparation well are arranged in a horizontal line.

[0047] The first wall, the second wall, the third wall and the fourth wall are single-layer walls, the first wall, the second wall, the third wall and the fourth wall are single-layer walls, each layer of the building can reach the reactor building through the passage, and the passage can also play a role in protecting the spent fuel pool.

[0048] The present application has the advantages that: the pressurized water reactor fuel building is compact, the building functions are independent, only the function systems related to fuel operation and storage and the supporting common and electrical instrument systems are arranged, the building size is small, the land occupation is also smaller, the site adaptability is good, the single-layer outer wall design can resist airplane impact (and has the ability to resist airplane impact), the civil engineering investment cost is low, and the economy is good; the spent fuel pool 34 is arranged near the reactor building, the container loading well 37 and the container preparation well 48 are arranged on the side close to the outer wall opposite the spent fuel pool 34, and the spent fuel pool 34 is protected. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 is a schematic diagram of a fuel building arrangement scheme in the specific embodiment;

[0050] Figure 2 is a cross-sectional schematic diagram of the fuel building in the specific embodiment;

[0051] Figure 3 is a schematic diagram of the underground second layer of the fuel building in the specific embodiment;

[0052] Figure 4 is a schematic diagram of the underground first layer of the fuel building in the specific embodiment;

[0053] Figure 5 is a schematic diagram of the above-ground first layer of the fuel building in the specific embodiment;

[0054] Figure 6 is a schematic diagram of the above-ground second layer of the fuel building in the specific embodiment;

[0055] Figure 7is a schematic diagram of the ground floor of the fuel building in the specific embodiment;

[0056] Figure 8 is a schematic diagram of the fourth floor of the fuel building in the specific embodiment;

[0057] Figure 9 is a schematic diagram of the fifth floor of the fuel building in the specific embodiment;

[0058] In the figure: 1 - reactor building, 2 - fuel handling area, 3 - equipment area, 4 - connecting area, 5 - stairwell, 6 - corridor, 7 - first wall, 8 - second wall, 9 - third wall, 10 - fourth wall, 11 - first spare room, 12 - valve grinding room, 13 - RFT filter pump room, 14 - hoist room, 15 - shock isolation room, 16 - RFT001 pump room, 17 - RFT002 pump room, 18 - RFT001 heat exchanger room, 19 - RFT002 heat exchanger room, 20 - second spare room, 21 - fire fighting equipment room, 22 - instrument compressed air room, 23 - RHR001 residual heat removal pump room, 24 - RHR002 residual heat removal pump room, 25 - residual heat removal heat exchanger room, 26 - TTB penetrations, 27 - electrical equipment room, 28 - electrical equipment cabinet room, 29 - CAM blower room, 30 - CAM penetrations, 31 - fuel receiving room, 32 - residual heat removal penetrations, 33 - VFL blower room, 34 - spent fuel pool, 35 - equipment loading / unloading port, 36 - third spare room, 37 - container loading shaft, 38 - fuel transfer vault, 39 - fuel transfer tunnel, 40 - VFL iodine exhaust blower room, 41 - VFL exhaust blower room, 42 - CAM iodine exhaust blower room, 43 - CSV supply air penetrations room, 44 - new fuel assembly receiving room, 45 - new fuel storage room, 46 - fourth spare room, 47 - electric hoist, 48 - container preparation shaft, 49 - CSV exhaust air penetrations room, 50 - fuel building operation hall. DETAILED DESCRIPTION

[0059] The present application will be further described below in conjunction with the accompanying drawings and examples.

[0060] The present application provides a fuel building layout scheme (see Figure 1 , 2), adjacent to the reactor building 1 of the nuclear power plant, wherein the building comprises a building surrounded by a first wall 7, a second wall 8, a third wall 9 and a fourth wall 10, the first wall 7 being connected perpendicularly to the second wall 8, the second wall 8 being connected perpendicularly to the third wall 9, the third wall 9 being connected perpendicularly to the fourth wall 10, the first wall 7 and the fourth wall 10 being connected to the reactor building 1 respectively, the building comprising, from bottom to top, a second underground floor, a first underground floor, a first ground floor, a second ground floor, a third ground floor, a fourth ground floor and a fifth ground floor, each floor being divided into a fuel handling area 2, an equipment area 3, a connecting area 4, a stairwell 5 (part of the stairwell further comprising a transition room and an elevator room) and a corridor 6; the building mainly arranges a new spent fuel handling and storage system, a new spent fuel transportation and loading and unloading, a reactor refueling pool and spent fuel pool cooling and processing system, a residual heat removal system, a fuel building air supply and exhaust system, etc.; the fuel building auxiliary process system is arranged in the underground part, the new spent fuel transportation and storage system, the ventilation system and the supporting electrical and instrument control system are arranged in the ground part; wherein the fuel handling area 2 mainly arranges a fuel transfer tunnel 39, a fuel transfer bin 38, a spent fuel pool 34, a container loading well 37, a container preparation well 48 and an equipment loading and unloading port 35.

[0061] The stairwell 5 is located at the connection of the first wall 7 and the second wall 8 (each floor is provided with);

[0062] The connecting area 4 is located near the stairwell 5 and is connected to the reactor building 1, mainly arranging the through-pieces of the process system and the ventilation system;

[0063] The equipment area 3 is connected to the fuel handling area 2, one side of the fuel handling area 2 being connected to the fourth wall 10, mainly arranging the fuel building ventilation system, the electrical system, the new fuel storage and receiving area;

[0064] The corridor 6 comprises the area between the connecting area 4 and the stairwell 5, further comprises the area between the equipment area 3 and the connecting area 4, the reactor building 1, the second wall 8 and the third wall 9, and further comprises the area between the fuel handling area 2 and the connecting area 4, the reactor building 1 and the third wall 9.

[0065] The second underground floor (see Figure 3)Major items of the reactor refueling pool and spent fuel pool cooling and handling system are arranged, the main functions of the reactor refueling pool and spent fuel pool cooling and handling system include cooling, purification, water guiding and maintaining spent fuel assembly subcritical and containment isolation, the service objects of the system are the refueling tank, spent fuel pool, refueling pool, loading well and transfer channel; therefore, the cooling pump needs to be arranged close to the above objects, so that the length of the pipeline can be shortened and the outlet pressure requirement of the pump can be reduced, thereby ensuring the reliability of the system. In order to ensure that the cooling pump can obtain an acceptable suction head, the pump is arranged on the second underground floor of the fuel building, and the heat exchanger is arranged on the same floor, so as to facilitate the arrangement of the pipeline. The hoisting room, reactor refueling pool filter pump room, valve grinding room and damping material are also arranged on the second underground floor of the fuel building. The damping material is located directly below the loading well and is used to prevent damage to the structural floor caused by the falling of the spent fuel container, and the hoisting room is used to meet the hoisting and transportation of the equipment on this floor. The specific arrangement of the second underground floor includes:

[0066] The first standby room 11 is arranged in the connection area 4;

[0067] The valve grinding room 12 and the RFT filter pump room 13 are arranged in the equipment area 3, and are close to the first standby room 11;

[0068] The hoisting room 14 and the damping compartment 15 are arranged in the equipment area 3 and are close to the third wall 9; the hoisting room 14 and the damping compartment 15 extend upward to the first underground floor;

[0069] The RFT001 pump room 16 and the RFT002 pump room 17 are arranged in the fuel operation area 2 and are close to the reactor building 1;

[0070] The RFT001 heat exchanger room 18 and the RFT002 heat exchanger room 19 are arranged in the fuel operation area 2 and are close to the third wall 9.

[0071] The first underground floor (see Figure 4 )Major items of the residual heat removal system are arranged, the main functions of the residual heat removal system include removing heat from the reactor core and reactor coolant system during the shutdown of the power plant, after preliminary cooling and pressure reduction by the steam generator, and being mutually backed up with the reactor refueling pool and spent fuel pool cooling and handling system. In order to ensure that the residual heat removal pump can obtain an acceptable suction head, the pump is arranged on the first underground floor of the fuel building, and the heat exchanger is arranged on the same floor, so as to facilitate the arrangement of the pipeline. The hoisting room, instrument compressed air room, fire fighting equipment room and damping material are also arranged on the first underground floor of the fuel building. The damping material is located directly below the loading well and is used to prevent damage to the structural floor caused by the falling of the spent fuel container, and the hoisting room is used to meet the hoisting and transportation of the equipment on this floor. The specific arrangement of the first underground floor includes:

[0072] The second standby room 20 is arranged in the connection area 4;

[0073] The fire-fighting equipment room 21 and the instrument compressed air room 22 are arranged in the equipment area 3, and are close to the second standby room 20;

[0074] The RHR001 residual heat removal pump room 23 and the RHR002 residual heat removal pump room 24 are arranged in the fuel operation area 2, and are close to the reactor building 1;

[0075] The residual heat removal heat exchanger room 25 is arranged in the fuel operation area 2, and the residual heat removal heat exchanger room 25 is close to the third wall 9.

[0076] The first floor (see Figure 5 ) mainly arranges the fuel receiving room, the electrical and instrument control system matched with the fuel building, the containment atmosphere monitoring system fan, the hoisting hole, and the penetration area, and specifically includes:

[0077] The TTB penetration 26 is arranged in the connecting area 4;

[0078] The electrical equipment room 27 and the electrical cabinet room 28 are arranged in the equipment area 3, and are communicated and close to the TTB penetration 26;

[0079] The CAM fan 29 is arranged in the fuel operation area 2, and the CAM fan 29 is close to the reactor building 1;

[0080] The CAM penetration 30 is arranged between the CAM fan 29 and the reactor building 1;

[0081] The fuel receiving room 31 is arranged through the equipment area 3 and the fuel operation area 2 (mainly used for the transportation of new spent fuel and the hoisting of the equipment in the underground area of the fuel building, the length of the fuel receiving room 31 ensures the complete introduction of the fuel transportation vehicle), the fuel receiving room 31 is close to the third wall 9, and the fuel receiving room 31 is communicated with the hoisting room 14.

[0082] The second floor (see Figure 6 ) mainly arranges the fuel building air supply fan room, the spent fuel pool, the fuel transfer store, the container loading well, the equipment loading and unloading port, and the residual heat removal system penetration; the fuel transfer store corresponds to the in-core component storage pool in the reactor building 1, the spent fuel pool is arranged beside the fuel transfer store, the container loading well, the container preparation well, and the equipment loading and unloading port are arranged in a horizontal line in sequence, and are arranged outside the spent fuel pool, satisfy the functions of new spent fuel transportation and the like, realize the nearby arrangement, can make the distance of the spent fuel container in the transportation shortest, reduce the falling risk, and can also play a role in protecting the spent fuel pool. The specific arrangement of the second floor includes:

[0083] The residual heat removal penetration 32 is arranged in the connecting area 4, and since the residual heat removal penetration 32 is a high-level area, it is physically separated from the low-level area of the layer;

[0084] VFL air supply room 33 (serving the entire fuel building air supply) arranged in equipment area 3;

[0085] Spent fuel pool 34 arranged in fuel handling area 2, which is close to residual exhaust penetrator 32 and extends upward to the fourth floor above ground;

[0086] Equipment loading / unloading port 35, third standby room 36 and container loading well 37 arranged in fuel handling area 2, which are close to third wall 9; equipment loading / unloading port 35 and container loading well 37 extend upward to the fourth floor above ground;

[0087] Fuel transfer warehouse 38 and fuel transfer tunnel 39 arranged in fuel handling area 2, which are connected and close to fourth wall 10, wherein fuel transfer tunnel 39 is connected with reactor building 1; fuel transfer warehouse 38 extends upward to the fourth floor above ground; and fuel transfer tunnel 39 extends upward to the third floor above ground.

[0088] The third floor above ground (see Figure 7 ) mainly arranges fuel building exhaust air supply room, iodine exhaust air supply room, spent fuel pool, fuel transfer warehouse, container loading well, equipment loading / unloading port, etc., which specifically includes:

[0089] VFL iodine exhaust air supply room 40 arranged in connecting area 4;

[0090] VFL exhaust air supply room 41 (for exhaust air supply of the entire fuel building under normal conditions) and CAM iodine exhaust air supply room 42 (for exhaust air supply of the fuel building under accident) arranged in equipment area 3, wherein VFL exhaust air supply room 41 is close to VFL iodine exhaust air supply room 40, and CAM iodine exhaust air supply room 42 is close to third wall 9.

[0091] The fourth floor above ground (see Figure 8 ) mainly arranges new fuel storage room, new fuel assembly receiving room, spent fuel pool, fuel transfer warehouse, container loading well, container preparation well, equipment loading / unloading port, and containment air change ventilation system air supply penetrator, which specifically includes:

[0092] CSV air supply penetrator room 43 arranged in connecting area 4;

[0093] New fuel assembly receiving room 44, new fuel storage room 45 and fourth standby room 46 arranged in equipment area 3, wherein new fuel assembly receiving room 44 and new fuel storage room 45 are close to CSV air supply penetrator room 43; and fourth standby room 46 is close to third wall 9;

[0094] Electric hoist 47 arranged in new fuel assembly receiving room 44;

[0095] Container preparation well 48 arranged in fuel handling area 2, which is close to third wall 9.

[0096] The fifth floor above ground (seeFigure 9 ) The fuel building operation hall, the containment venting system exhaust through-penetration, specifically comprising:

[0097] The CSV exhaust through-penetration 49 is arranged in the connecting area 4;

[0098] The fuel building operation hall 50 is arranged in the fuel operation area 2 and the equipment area 3.

[0099] On the fourth floor, the equipment loading and unloading port 35, the container loading well 37 and the container preparation well 48 are arranged in a horizontal line; the equipment loading and unloading port 35 is used for hoisting the new spent fuel container and introduces the equipment of each floor of the fuel building, and the setting of the hoisting hole is omitted;

[0100] The first wall 7, the second wall 8, the third wall 9 and the fourth wall 10 are single-layer walls, and each floor of the building can reach the right side of the reactor building 1 through the south side passage 6, and the passage 6 can also protect the spent fuel pool 34.

[0101] Only one staircase is arranged in the building, and one staircase of the right side reactor building 1 can be used to realize the fire evacuation requirement of two staircases for one building, realize the compact arrangement concept and reduce the volume of the fuel building.

[0102] The scheme described in the present application is not limited to the embodiments described in the specific embodiments, and other embodiments can be derived by those skilled in the art according to the technical scheme of the present application, which also belongs to the technical innovation range of the present application.

Claims

1. A fuel building arrangement scheme, adjacent to a reactor building (1) of a nuclear power plant, characterized by: The invention comprises a plant building surrounded by a first wall (7), a second wall (8), a third wall (9) and a fourth wall (10), wherein the first wall (7) is vertically connected to the second wall (8), the second wall (8) is vertically connected to the third wall (9), the third wall (9) is vertically connected to the fourth wall (10), the first wall (7) and the fourth wall (10) are respectively connected to the reactor plant building (1), and the plant building comprises, from bottom to top, two underground floors, one underground floor, one above-ground floor, two above-ground floors, three above-ground floors, four above-ground floors and five above-ground floors, and each floor is divided into a fuel operation area (2), an equipment area (3), a connection area (4), a stairwell (5) and a passage (6); The stairwell (5) is located at the connection between the first wall (7) and the second wall (8); The connection area (4) is located near the stairwell (5) and is connected to the reactor building (1); The equipment area (3) is connected to the fuel operation area (2), and one side of the fuel operation area (2) is connected to the fourth wall (10); The passage (6) includes the area between the connection area (4) and the stairwell (5), the area between the equipment area (3) and the connection area (4), the reactor building (1), the second wall (8) and the third wall (9), and the area between the fuel operation area (2) and the connection area (4), the reactor building (1) and the third wall (9).

2. A fuel plant layout scheme as claimed in claim 1, characterized in that: The second underground floor includes: a first spare room (11) provided in the connection area (4); A valve grinding room (12) and an RFT filter pump room (13) are provided in the equipment area (3), both of which are close to the first standby room (11); A hoisting room (14) and a shock-absorbing compartment (15) are provided in the equipment area (3), both of which are close to the third wall (9); the hoisting room (14) and the shock-absorbing compartment (15) extend upward to the underground floor; The RFT001 pump room (16) and the RFT002 pump room (17) are located in the fuel operation area (2), and are close to the reactor building (1); The RFT001 heat exchanger room (18) and the RFT002 heat exchanger room (19) are arranged in the fuel operation area (2), and both are close to the third wall (9).

3. A fuel plant layout scheme as claimed in claim 2, characterized in that: The underground level includes: a second spare room (20) provided in the connection area (4); A fire-fighting equipment room (21) and an instrument compressed air room (22) are provided in the equipment area (3), both of which are close to the second spare room (20); The RHR001 waste pump room (23) and the RHR002 waste pump room (24) are located in the fuel operation area (2), both of which are close to the reactor building (1); The waste heat exchanger room (25) is arranged in the fuel operation area (2), and the waste heat exchanger room (25) is close to the third wall (9).

4. A fuel plant layout scheme as claimed in claim 3, characterized in that: The ground floor includes: A TTB penetration piece (26) provided in the connection area (4); An electrical equipment room (27) and an electrical cabinet room (28) are provided in the equipment area (3), the two being in communication and close to the TTB penetration piece (26); A CAM blower (29) is provided in the fuel operation area (2), and the CAM blower (29) is close to the reactor building (1); A CAM penetration piece (30) disposed between the CAM blower (29) and the reactor building (1); A fuel receiving room (31) is provided through the equipment area (3) and the fuel operation area (2), the fuel receiving room (31) is close to the third wall (9), and the fuel receiving room (31) is communicated with the hoisting room (14).

5. A fuel plant layout scheme as claimed in claim 4, characterized in that: The second floor above ground includes: A remaining row of penetration pieces (32) is provided in the connection area (4); A VFL air supply room (33) provided in the equipment area (3); a spent fuel pool (34) disposed in the fuel operation area (2), the spent fuel pool (34) being close to the remaining row penetration piece (32) and extending upward to the fourth floor above ground; An equipment loading and unloading port (35), a third spare room (36), and a container loading well (37) are provided in the fuel operation area (2), and are close to the third wall (9); the equipment loading and unloading port (35) and the container loading well (37) extend upward to the fourth floor above ground; A fuel transfer bin (38) and a fuel transfer tunnel (39) are provided in the fuel operation area (2), the two being connected and close to the fourth wall (10), wherein the fuel transfer tunnel (39) is connected to the reactor building (1); the fuel transfer bin (38) extends upward to the fourth floor above ground; and the fuel transfer tunnel (39) extends upward to the third floor above ground.

6. A fuel plant layout scheme as claimed in claim 5, characterized in that: The three above-ground floors include: A VFL iodine exhaust fan room (40) is provided in the connection area (4); A VFL exhaust fan room (41) and a CAM iodine exhaust fan room (42) are arranged in the equipment area (3), wherein the VFL exhaust fan room (41) is close to the VFL iodine exhaust fan room (40), and the CAM iodine exhaust fan room (42) is close to the third wall (9).

7. A fuel plant layout scheme as claimed in claim 6, characterized in that: The four above-ground floors include: A CSV air supply penetration room (43) provided in the connection area (4); A new fuel assembly receiving room (44), a new fuel storage room (45) and a fourth spare room (46) are provided in the equipment area (3), wherein the new fuel assembly receiving room (44) and the new fuel storage room (45) are close to the CSV air supply penetration room (43); and the fourth spare room (46) is close to the third wall (9); an electric crane (47) disposed in the new fuel assembly receiving room (44); A container preparation well (48) is provided in the fuel operation area (2), and the container preparation well (48) is close to the third wall (9).

8. A fuel plant layout scheme as claimed in claim 7, characterized in that: The five above-ground floors include: A CSV exhaust penetration room (49) provided in the connection area (4); A fuel plant operation hall (50) is provided in the fuel operation area (2) and the equipment area (3).

9. A fuel plant layout solution as claimed in claim 8, characterized in that: On the fourth floor above ground, the equipment loading and unloading port (35), the container loading well (37) and the container preparation well (48) are arranged on a horizontal line; The first wall (7), the second wall (8), the third wall (9) and the fourth wall (10) are all single-layer walls. Each floor of the plant can reach the reactor plant (1) through the passage (6). The passage (6) can also protect the spent fuel pool (34).

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