A tritium plant layout structure for a tokamak magnetic confinement fusion power station

Abstract

The present invention relates to a tritium plant layout structure of a tokamak magnetic confinement fusion power station, belonging to the technical field of nuclear engineering plant layout. The tritium plant is divided into a mechanical penetration area, an internal fuel circulation system equipment area, an external fuel circulation system equipment area, a water detritium system equipment area, a ventilation detritium system equipment area, a comprehensive layout area, a staircase elevator area, an equipment hoisting area and a passage area according to functions, and a functional area with high tritium concentration is arranged inside the tritium plant, and a functional area with low tritium concentration is arranged outside. The tritium plant provided by the present invention has a simple layout structure and a reasonable layout, which not only improves the radiation protection effect and meets the needs of commercial nuclear power plants, but also improves the space utilization rate of nuclear power plants.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear engineering, and in particular relates to a tritium plant layout structure of a tokamak magnetic confinement fusion power station. Background Art

[0002] The application of nuclear energy is mainly to obtain energy from a controllable chain reaction for a long time. A nuclear reactor is a device that continuously carries out such a chain reaction. According to the reaction principle, nuclear reactors can be divided into nuclear fission reactors and nuclear fusion reactors. The fissionable fuel resources are limited, but the deuterium in seawater may become an inexhaustible energy source for nuclear fusion power stations. Therefore, nuclear fusion is a more ideal energy source and has attracted the attention and research of scientists all over the world.

[0003] After more than 50 years of joint efforts by fusion research experts around the world, nuclear fusion energy research has entered the feasibility stage of experimentally demonstrating the scientific feasibility of long-pulse and / or steady-state deuterium-tritium combustion, tritium breeding and recovery, shielding blanket and other engineering technologies.

[0004] At present, research on magnetic confinement nuclear fusion is mostly based on experimental reactors or experimental devices, mainly including the international ITER thermonuclear fusion experimental reactor, the US TFTR device, the Japanese JT-60 device, the European JET device and China's EAST advanced experimental reactor.

[0005] Tokamak is a ring-shaped device that is driven by confined electromagnetic waves to create an environment and ultra-high temperature for deuterium and tritium to achieve fusion, and to achieve human control over the fusion reaction. At present, the nuclear island plant design for commercial Tokamak magnetic confinement fusion power plants has not been proposed at home and abroad. The above experimental reactors or experimental devices all have shortcomings such as insufficient safety, low space utilization, and unreasonable planning, which cannot meet the construction needs of commercial magnetic confinement fusion power plants. Summary of the invention

[0006] In order to solve the defects of the prior art, the purpose of the present invention is to provide a tritium plant layout structure of a tokamak magnetic confinement fusion power station, which can meet commercial needs and has strong engineering feasibility.

[0007] In order to achieve the above purpose, a technical solution adopted by the present invention is:

[0008] A tritium plant layout structure of a tokamak magnetic confinement fusion power station, wherein the tritium plant is adjacent to the tokamak main engine building above and adjacent to the hot chamber on the right; divided by function, the tritium plant includes a mechanical penetration area, an internal fuel circulation system equipment area, an external fuel circulation system equipment area, a water detritiation system equipment area, a ventilation and detritiation system equipment area, a comprehensive layout area, a stair elevator area, an equipment hoisting area and a passage area;

[0009] Based on radiation protection requirements, functional areas with high tritium concentration are arranged inside the tritium factory, and functional areas with low tritium concentration are arranged outside the tritium factory.

[0010] Furthermore, in the tritium plant layout structure of the tokamak magnetic confinement fusion power station as described above, the mechanical penetration area is the interface area between the tritium plant and the main engine building, located on the side close to the main engine building, and is equipped with radioactive mechanical penetration parts of the internal fuel circulation system, the external fuel circulation system and the loading and unloading system.

[0011] Furthermore, in the tritium plant layout structure of the tokamak magnetic confinement fusion power station as described above, the internal fuel circulation system equipment area is located on the side close to the main engine building and is adjacent to the left and bottom sides of the mechanical penetration area 1, and is mainly used for arranging items related to the internal fuel circulation system.

[0012] Furthermore, in the tritium plant layout structure of the tokamak magnetic confinement fusion power station as described above, the internal fuel circulation system equipment area is arranged with the tokamak plasma ash gas treatment system, the internal circulation hydrogen isotope separation system, the fuel storage and supply system and the analysis system related items.

[0013] Furthermore, in the tritium plant layout structure of the tokamak magnetic confinement fusion power station as described above, the external fuel circulation system equipment area is located in the center of the tritium plant and is adjacent to the internal fuel circulation system equipment area, the water detritiation equipment area and the ventilation detritiation equipment area, and is mainly used for arranging items related to the external fuel circulation system. The main task of the external fuel circulation system is to extract and recover the tritium proliferated in the cladding to compensate for the burnup, decay and non-radioactive loss of tritium, thereby achieving self-sustaining tritium fuel.

[0014] Furthermore, in the tritium plant layout structure of the tokamak magnetic confinement fusion power station as described above, the external fuel circulation system equipment area is arranged with a blanket tritium extraction system, a helium coolant purification system, a water coolant purification system and items related to the external circulation hydrogen isotope separation system.

[0015] Furthermore, in the tritium plant layout structure of the tokamak magnetic confinement fusion power station as described above, the water detritiation system equipment area is located on the side of the tritium plant close to the hot cell, adjacent to the external fuel cycle equipment area, the ventilation detritiation system equipment area and the comprehensive layout area.

[0016] Furthermore, in the tritium plant layout structure of the tokamak magnetic confinement fusion power station as described above, a water detritiation system is arranged in the equipment area of ​​the water detritiation system, which is used for the treatment and disposal of tritium-containing waste liquid generated during the normal operation of the tritium plant, main plant and hot chamber and during accidents.

[0017] Furthermore, in the tritium plant layout structure of the tokamak magnetic confinement fusion power station as described above, the ventilation and detritiation system equipment area is adjacent to the external fuel circulation system equipment area, the water detritiation system equipment area and the comprehensive layout area, and is mainly used for arranging various ventilation and detritiation system items.

[0018] Furthermore, in the tritium plant layout structure of the Tokamak magnetic confinement fusion power station as described above, the ventilation and detritiation system equipment area is arranged with an air atmosphere detritiation system, an exhaust and ventilation detritiation system and a glove box atmosphere detritiation system, which are mainly used for detritiation of the main engine plant, the tritium plant and the hot chamber.

[0019] Furthermore, in the tritium plant layout structure of the Tokamak magnetic confinement fusion power station as described above, the comprehensive layout area is located at the outermost side of the tritium plant and is mainly used for arranging cables, batteries and other system items which have low dose rate levels themselves.

[0020] The tritium plant layout structure of the Tokamak magnetic confinement fusion power station of the present invention has the following significant technical effects:

[0021] The present invention has a simple structure, a reasonable layout and complete functions, which can not only meet the needs of commercial nuclear power plants, but also improve the space utilization rate of nuclear power plants; the functional area with higher tritium concentration is arranged inside the tritium plant, and the functional area with lower tritium concentration is arranged outside, which can improve the radiation protection effect; three elevators and stairs are set in the tritium plant to meet the fire evacuation requirements and comprehensively consider the transportation of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the plan layout structure of a tritium plant of a tokamak magnetic confinement fusion power station provided in an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of radiation protection zones of the tritium plant;

[0024] Figure 3 This is a schematic diagram of the layout of the three underground floors of the tritium factory;

[0025] Figure 4 This is a schematic diagram of the layout of the second underground floor of the tritium factory;

[0026] Figure 5 This is a schematic diagram of the floor plan of the underground level of the tritium factory;

[0027] Figure 6 This is a schematic diagram of the floor plan of the first floor of the tritium plant;

[0028] Figure 7 This is a schematic diagram of the layout of the second floor of the tritium factory;

[0029] Figure 8 This is a schematic diagram of the layout of the three above-ground floors of the tritium factory;

[0030] Fig. 9 This is a schematic diagram of the layout of the four above-ground floors of the tritium factory;

[0031] Figure numbers: 1-mechanical penetration area, 2-internal fuel circulation system equipment area, 3-external fuel circulation system equipment area, 4-water detritiation system equipment area, 5-ventilation and detritiation system equipment area, 6-comprehensive layout area, 7-staircase elevator area, 8-equipment lifting area, 9-passage area. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with specific embodiments and the accompanying drawings.

[0033] Figure 1 The schematic diagram of the plan layout structure of a tritium plant of a tokamak magnetic confinement fusion power station provided by an embodiment of the present invention is shown. The total area of ​​the tritium plant is about 5902m 2 The total length of the building is about 69m, the total width is about 40m, and the distance from the center of the reactor is 81.00m. The tritium factory is adjacent to the tokamak main plant above and the hot chamber on the right, so as to reasonably arrange the tritium process pipelines and ventilation and detritium pipelines entering and exiting the above two plants.

[0034] By function, such as Figure 1 As shown, the interior of the tritium plant is divided into a mechanical penetration area 1, an internal fuel circulation system equipment area 2, an external fuel circulation system equipment area 3, a water detritiation system equipment area 4, a ventilation and detritiation system equipment area 5, a comprehensive layout area 6, a stair elevator area 7, an equipment hoisting area 8 and a passage area 9.

[0035] Mechanical penetration area 1 is the interface area between the tritium plant and the main engine building. It is arranged on one side close to the tokamak main engine building. It is mainly equipped with radioactive mechanical penetrations of the internal fuel circulation system, the external fuel circulation system and the loading and unloading system (i.e. the feeding system and the vacuum system). In addition, the pumps, storage tanks and corresponding pipeline valves of the loading and unloading system are also arranged in this area.

[0036] The internal fuel cycle system equipment area 2 is adjacent to the left and lower side of the mechanical penetration area 1, and is mainly equipped with the Tokamak plasma exhaust gas processing system (TEP), the internal cycle hydrogen isotope separation system (ISS-I), the fuel storage and supply system (SDS) and the analysis system (ANS) and other system items. TEP recovers the unburned deuterium-tritium fuel in the combustion ring after each ignition and combustion, and sends it to ISS-I for isotope separation and then to SDS, or directly to SDS after concentration detection. Partial isotope separation is performed on the plasma exhaust gas after TEP treatment; hydrogen isotope separation is performed on the deuterium-rich hydrogen isotope gas source from the neutral beam injector. SDS receives and stores deuterium-tritium fuels of different components and concentrations sent from systems such as TEP, ISS-I, external cycle hydrogen isotope separation system (ISS-O), and water detritium system (WDS), and provides the required ratio of fuel gas for the feed system. Therefore, the internal fuel circulation system equipment area 2 is arranged on the side close to the main engine building and is adjacent to the mechanical penetration area 1 and the external fuel circulation equipment area 3.

[0037] The equipment area 3 of the external fuel cycle system mainly includes system items such as the blanket tritium extraction system (TES), helium coolant purification system (HCPS), water coolant purification system (WCPS) and external cycle hydrogen isotope separation system ISS-O. The main task of the external fuel cycle system of the tritium plant is to extract and recover the tritium that has been proliferated in the blanket to make up for the burnup, decay and non-radioactive loss of tritium, thereby achieving self-sustaining tritium fuel. After purification, the tritium-containing hydrogen isotope gas recovered by TES, HCPS and WCPS is all sent to ISS-O for tritium enrichment and separation to obtain fuel-grade tritium products and transport them to SDS. Therefore, TES, HCPS and WCPS need to be arranged close to ISS-O, the ISS-O system needs to be arranged together with the SDS, and TES needs to be arranged close to the blanket. The external fuel circulation system equipment area 3 is arranged at the center of the tritium plant and is adjacent to the internal fuel circulation system equipment area 2, the water detritiation equipment area 4 and the ventilation detritiation equipment area 5.

[0038] The water detritiation system equipment area 4 is mainly used to arrange the water detritiation system (WDS). The WDS is used to treat tritium-containing water produced during normal operation and accidents, and needs to complete the treatment and disposal of tritium-containing waste liquid in the three major plants of the tritium plant, the main engine plant and the hot cell. Therefore, it is arranged on the right side of the tritium plant, adjacent to the external fuel cycle equipment area 3 and the ventilation detritiation system equipment area 5, and close to the hot cell side.

[0039] The ventilation and detritiation system equipment area 5 is mainly used to arrange various ventilation and detritiation system items, which are arranged in the middle of the tritium plant. Among them, the air atmosphere detritiation system (ADS) includes the S-ADS used for detritiation in the tritium operation room, tokamak device and hall of the tritium plant, and the HC-ADS for detritiation in the hot chamber. The ventilation and exhaust detritiation system (VDS) includes the VDS (denoted as N-VDS) of the tokamak main engine plant and the tritium plant, and the hot chamber VDS (denoted as HC-VDS). Therefore, S-ADS and N-VDS need to be arranged close to the tokamak main engine plant, and HC-ADS and HC-VDS need to be arranged close to the hot chamber. The glove box atmosphere detritiation system (GDS) needs to take into account all systems containing glove boxes, so it is more reasonable to arrange it close to the glove box system.

[0040] The integrated layout area 6 is mainly used to arrange cables, batteries and other system items that may be arranged in the tritium plant but have a low dose rate level. The integrated layout area 6 is arranged at the outermost side of the tritium plant.

[0041] The staircase and elevator area 7 includes three staircases and three elevators, which can be used for normal passage and emergency evacuation of staff. There is an emergency escape door for personnel directly leading to the outside of the factory building on the ±0.00m floor. The passage area 9 of the tritium plant uses three longitudinal passages and one horizontal passage to meet the needs of personnel passage and equipment transportation.

[0042] Except for some liquid storage tanks and large-sized equipment, the main equipment in the tritium factory needs to be introduced in advance. Other equipment is mainly introduced into the factory through the equipment transportation channel and the gate, and then enters the corresponding process room through the main passages, door openings and lifting holes in the factory.

[0043] Equipment lifting area 8 is located in the lower left corner of the tritium factory. It is a lifting hole that runs from the negative third floor to the positive fourth floor. A 10t electric monorail crane is installed on the highest floor, which can be used for the transportation and lifting of all equipment in the tritium factory.

[0044] The radiation protection zones of the tritium plant of the Tokamak magnetic confinement fusion power station provided in the embodiment of the present invention are specifically determined according to relevant laws and regulations of my country, and the radiation protection zones are consistent with the tritium zones. Based on the concept of radiation zone layout, where the tritium concentration is high, the dose rate level is high, and it is more reasonable to arrange it inside; where the tritium concentration is low, the dose rate level is low, and it can be arranged outside the plant. Reference Figure 2 As shown, the radiation protection zones of the tritium plant are generally divided into four zones: A, B, C, and D, among which:

[0045] Area A is mainly arranged with an internal circulation system, with a large amount of tritium operation, high tritium concentration and a relatively small processing scale.

[0046] Area B is mainly arranged with an external circulation system, where the tritium operation volume is relatively small and the tritium concentration is relatively low, but the processing scale is large.

[0047] Area C is mainly equipped with a water detritiation system, which is used for water detritiation with a low dose rate level and can process a large amount of tritium water.

[0048] Area D is mainly equipped with tritium safety-related systems, such as the glove box atmosphere detritiation system (GDS), ventilation and exhaust detritiation system (VDS), air atmosphere detritiation system (ADS), and heating, ventilation and air conditioning system (HVAC).

[0049] The specific layout of each layer of the tritium factory provided by the present invention is described below.

[0050] The tritium factory has three underground floors and four above-ground floors. Figure 3-Figure 9 The floor plan layout of each floor of the tritium factory is illustrated respectively, including:

[0051] refer to Figure 3 As shown, the three underground floors are mainly arranged with the WCPS water coolant purification system, the WDS water detritiation system and the integrated pipe gallery. The WCPS is located in the outer fuel circulation system equipment area 3, close to the lower side of the inner fuel circulation system equipment area 2, and the WDS is located in the water detritiation system equipment area 4.

[0052] refer to Figure 4 As shown, the second underground floor is mainly equipped with HCPS helium coolant purification system, WDS water detritiation system, WCPS water coolant purification system, TEP plasma exhaust gas treatment system, and ANS analysis system. HCPS is located in the lower side of the external fuel circulation system equipment area 3 adjacent to the internal fuel circulation system equipment area 2, TEP is located on the side of the external fuel circulation system equipment area 3 adjacent to the hot chamber, ANS is located on the side of the internal fuel circulation system equipment area 2 close to TEP, WDS is located in the water detritiation system equipment area 4, and WCPS is located in the ventilation detritiation system equipment area 5.

[0053] refer to Figure 5 As shown, the underground first floor is mainly equipped with HCPS helium coolant purification system, WCPS water coolant purification system, TEP plasma exhaust gas treatment system, ANS analysis system, GDS glove box atmosphere detritiation system and ACS central control system. The positions of HCPS, WCPS, TEP and ANS are consistent with those on the negative second floor. GDS is arranged in the comprehensive layout area 6 close to the glove box system; ACS is arranged in the water detritiation system equipment area 4.

[0054] refer to Figure 6As shown, the ground floor mainly arranges the WDS water detritiation system, WCPS water coolant purification system, ISS-I hydrogen isotope separation system, ISS-O external circulation hydrogen isotope separation system, SDS fuel storage and supply system and GDS glove box atmosphere detritiation system. WDS is located in the water detritiation system equipment area 4, and the positions of WCPS and GDS are consistent with the negative first floor; SDS is located in the inner fuel circulation system equipment area 2, close to the lower side of the mechanical penetration area 1, ISS-I is located in the outer fuel circulation system equipment area 3, close to the side of the hot chamber, and ISS-O is located in the outer fuel circulation system equipment area 3, close to the lower side of SDS.

[0055] refer to Figure 7 As shown, the second floor above ground mainly arranges the ISS-I hydrogen isotope separation system, the ISS-O external circulation hydrogen isotope separation system, the WDS water detritiation system, the WCPS water coolant purification system and the LTS tritium long-term storage system. The positions of ISS-I, ISS-O and WDS are consistent with those of the first floor above ground. LTS is located in the inner fuel circulation system equipment area 2 near ISS-I and ISS-O, and WCPS is located in the ventilation detritiation system equipment area 5 near the side of WDS.

[0056] refer to Figure 8 As shown, the three floors above ground are mainly equipped with TES blanket tritium extraction system, ISS-I hydrogen isotope separation system, ISS-O external circulation hydrogen isotope separation system, WDS water detritiation system, WCPS water coolant purification system, VDS exhaust gas detritiation system and ADS air atmosphere detritiation system. TES is arranged in the mechanical penetration area 1 and the internal fuel circulation system equipment area 2. The positions of ISS-I, ISS-O and WCPS are consistent with the second floor above ground. WDS is located at one end of the water detritiation system equipment area 4 close to ISS-I, ADS is located at the other end of the water detritiation system equipment area 4, and VDS is located at one side of the ventilation detritiation system equipment area 5 close to the equipment hoisting area 8.

[0057] refer to Fig. 9 As shown in the figure, the four floors above ground are mainly equipped with the ISS-I hydrogen isotope separation system, the ISS-O external circulation hydrogen isotope separation system, the WCPS water coolant purification system and the VDS exhaust gas detritium system. The positions of ISS-I, ISS-O, WCPS and VDS are consistent with the three floors above ground.

[0058] The plan layout structure of a tritium plant of a tokamak magnetic confinement fusion power station provided by the present invention has a simple structure, a reasonable layout, and complete functions, which can not only meet the needs of commercial nuclear power plants, but also improve the space utilization rate of nuclear power plants; the functional area with higher tritium concentration is arranged inside the tritium plant, and the functional area with lower tritium concentration is arranged outside, which can improve the radiation protection effect; three elevators and stairs are set in the tritium plant to meet the fire evacuation requirements, and the transportation of equipment is comprehensively considered, which has strong engineering feasibility.

[0059] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these changes and variations. The above-mentioned embodiments are merely illustrative of the present invention, and the present invention may also be implemented in other specific ways or other specific forms without departing from the gist or essential features of the present invention. Therefore, the described embodiments should be considered illustrative rather than restrictive in any respect. The scope of the present invention shall be described by the appended claims, and any changes equivalent to the intent and scope of the claims shall also be included within the scope of the present invention.

Claims

1. A tritium plant layout structure of a tokamak magnetic confinement fusion power station, characterized in that: The tritium plant is adjacent to the Tokamak main engine building above and the hot chamber on the right; According to the functional division, the tritium plant includes a mechanical penetration area (1), an internal fuel circulation system equipment area (2), an external fuel circulation system equipment area (3), a water detritiation system equipment area (4), a ventilation detritiation system equipment area (5), a comprehensive layout area (6), a staircase elevator area (7), an equipment hoisting area (8) and a passage area (9); The mechanical penetration area (1) is the interface area between the tritium plant and the main engine building, and is located on the side close to the main engine building. The radioactive mechanical penetration parts of the internal fuel circulation system, the external fuel circulation system and the loading and unloading system are arranged therein; the internal fuel circulation system equipment area (2) is located on the side close to the main engine building and is adjacent to the left and bottom sides of the mechanical penetration area (1). It is mainly used to arrange items related to the internal fuel circulation system. The internal fuel circulation system equipment area (2) is arranged with a tokamak plasma ash gas treatment system, an internal circulation hydrogen isotope separation system, a fuel storage and supply system and items related to the analysis system; The external fuel cycle system equipment area (3) is located at the center of the tritium plant and is adjacent to the internal fuel cycle system equipment area (2), the water detritiation equipment area (4) and the ventilation detritiation equipment area (5). It is mainly used to arrange items related to the external fuel cycle system. The main task of the external fuel cycle system is to extract and recover tritium proliferated in the blanket to compensate for the burnup, decay and non-radioactive loss of tritium, thereby achieving tritium fuel self-sustaining; the external fuel cycle system equipment area (3) is arranged with blanket tritium extraction system, helium coolant purification system, water coolant purification system and items related to the external cycle hydrogen isotope separation system; Based on radiation protection requirements, functional areas with high tritium concentration are arranged inside the tritium factory, and functional areas with low tritium concentration are arranged outside the tritium factory; The tritium plant has three underground floors and four above-ground floors. The three underground floors are mainly arranged with a WCPS water coolant purification system, a WDS water detritiation system and a comprehensive pipe gallery. The WCPS is located in the outer fuel circulation system equipment area (3) close to the lower side of the inner fuel circulation system equipment area (2), and the WDS is located in the water detritiation system equipment area (4); The second underground floor is mainly equipped with the HCPS helium coolant purification system, the WDS water detritiation system, the WCPS water coolant purification system, the TEP plasma exhaust gas treatment system, and the ANS analysis system; the HCPS is located in the lower side of the external fuel circulation system equipment area (3) adjacent to the internal fuel circulation system equipment area (2); the TEP is located in the side of the external fuel circulation system equipment area (3) adjacent to the hot chamber; the ANS is located in the side of the internal fuel circulation system equipment area (2) close to the TEP; the WDS is located in the water detritiation system equipment area (4); and the WCPS is located in the ventilation detritiation system equipment area (5); The first underground floor is mainly equipped with the HCPS helium coolant purification system, WCPS water coolant purification system, TEP plasma exhaust gas treatment system, ANS analysis system, GDS glove box atmosphere detritiation system and ACS central control system; the locations of HCPS, WCPS, TEP and ANS are consistent with those on the second underground floor. GDS is arranged in the comprehensive layout area (6) close to the glove box system; ACS is arranged in the water detritiation system equipment area (4); The first floor above ground is mainly equipped with the WDS water detritiation system, the WCPS water coolant purification system, the ISS-I hydrogen isotope separation system, the ISS-O external circulation hydrogen isotope separation system, the SDS fuel storage and supply system, and the GDS glove box atmosphere detritiation system; the WDS is located in the water detritiation system equipment area (4), and the positions of the WCPS and GDS are consistent with the first floor underground; the SDS is located in the inner fuel circulation system equipment area (2) and is adjacent to the mechanical penetration area (1) below, the ISS-I is located in the outer fuel circulation system equipment area (3) and is adjacent to the hot chamber side, and the ISS-O is located in the outer fuel circulation system equipment area (3) and is adjacent to the SDS below; The second floor above ground is mainly equipped with the ISS-I hydrogen isotope separation system, the ISS-O external circulation hydrogen isotope separation system, the WDS water detritiation system, the WCPS water coolant purification system and the LTS tritium long-term storage system. The positions of ISS-I, ISS-O and WDS are consistent with those of the first floor above ground. LTS is located in the inner fuel circulation system equipment area (2) close to ISS-I and ISS-O, and WCPS is located in the ventilation detritiation system equipment area (5) on one side close to WDS. The three above-ground floors are mainly equipped with the TES blanket tritium extraction system, the ISS-I hydrogen isotope separation system, the ISS-O external circulation hydrogen isotope separation system, the WDS water detritiation system, the WCPS water coolant purification system, the VDS exhaust gas detritiation system and the ADS air atmosphere detritiation system; the TES is arranged in the mechanical penetration area (1) and the internal fuel circulation system equipment area (2); the positions of the ISS-I, ISS-O and WCPS are consistent with those of the second above-ground floor; the WDS is located at one end of the water detritiation system equipment area (4) close to the ISS-I; the ADS is located at the other end of the water detritiation system equipment area (4); and the VDS is located at one side of the ventilation detritiation system equipment area (5) close to the equipment hoisting area (8); The four above-ground floors are mainly equipped with the ISS-I hydrogen isotope separation system, the ISS-O external circulation hydrogen isotope separation system, the WCPS water coolant purification system and the VDS exhaust gas detritus removal system. The positions of ISS-I, ISS-O, WCPS and VDS are consistent with the three above-ground floors.

2. The tritium plant layout structure of the Tokamak magnetic confinement fusion power station according to claim 1, characterized in that: The water detritiation system equipment area (4) is located on the side of the tritium plant close to the hot chamber, and is adjacent to the external fuel circulation equipment area (3), the ventilation detritiation system equipment area (5) and the comprehensive layout area (6).

3. The tritium plant layout structure of the Tokamak magnetic confinement fusion power station according to claim 1, characterized in that: The water detritiation system equipment area (4) is provided with a water detritiation system for treating and disposing of tritium-containing waste liquid generated during normal operation and accidents of the tritium plant, main engine plant and hot room.

4. The tritium plant layout structure of the Tokamak magnetic confinement fusion power station according to claim 1, characterized in that: The ventilation and detritiation system equipment area (5) is adjacent to the external fuel circulation system equipment area (3), the water detritiation system equipment area (4) and the comprehensive layout area (6), and is mainly used for arranging various ventilation and detritiation system items.

5. The tritium plant layout structure of the Tokamak magnetic confinement fusion power station according to claim 1, characterized in that: The ventilation detritiation system equipment area (5) is equipped with an air atmosphere detritiation system, an exhaust ventilation detritiation system and a glove box atmosphere detritiation system, which are mainly used for detritiation in main engine workshops, tritium plants and hot rooms.

6. The tritium factory layout structure of the Tokamak magnetic confinement fusion power station according to claim 1, characterized in that: The integrated layout area (6) is located at the outermost side of the tritium plant and is mainly used for arranging cables, batteries and other system items with low dose rate levels.

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