CN-122021024-A - Method, device, equipment and medium for containing and partitioning deuterium-tritium fusion device

CN122021024ACN 122021024 ACN122021024 ACN 122021024ACN-122021024-A

Abstract

The application relates to the technical field of nuclear facilities and discloses a deuterium-tritium fusion device containment partitioning method, device, equipment and medium, wherein the method comprises the steps of primarily dividing each tritium-involved room into a plurality of tritium-involved areas with different tritium containment grades based on a preset tritium concentration limit value, identifying a transition room between two tritium-involved areas with adjacent spatial positions and adjacent tritium containment grades, generating a plurality of different candidate partitioning schemes by adjusting the tritium-involved areas to which the transition room belongs, determining the system balance time of the candidate partitioning scheme based on the spatial volume of each tritium-involved area, the annual average tritium release rate and the preset net exhaust air quantity for any candidate partitioning scheme, identifying the shortest system balance time in each system balance time, and determining the candidate partitioning scheme corresponding to the shortest system balance time as a target partitioning scheme. The negative pressure ventilation system has the beneficial effect that the dynamic response performance of the negative pressure ventilation system is optimized.

Inventors

GUO BIN
RONG JUNHAO
WU GANG
TANG YUQING

Assignees

中国科学院合肥物质科学研究院

Dates

Publication Date: 20260512
Application Date: 20260130

Claims (10)

1.A method for containment zoning of a deuterium-tritium fusion device, the method comprising: Based on a preset tritium concentration limit value, primarily dividing each tritium-related room into a plurality of tritium-related areas with different tritium inclusion grades; Identifying a transition room between two tritium-related areas with adjacent spatial positions and adjacent tritium inclusion levels, and generating a plurality of different candidate partition schemes by adjusting the tritium-related areas to which the transition room belongs; Determining the system balance time of any candidate partition scheme based on the space volume of each tritium-related region, the annual average tritium release rate and the preset net air discharge quantity; and identifying the shortest system balance time in the system balance times, and determining a candidate partition scheme corresponding to the shortest system balance time as a target partition scheme.
2. The method of claim 1, wherein the preset tritium-related concentration limits include a first concentration limit, a second concentration limit, and a third concentration limit, and wherein initially dividing each tritium-related room into a plurality of tritium-related regions of different tritium containment levels based on the preset tritium-related concentration limits comprises: for any tritium-related room, if the tritium-related risk index of the tritium-related room is smaller than the first concentration limit value, dividing the tritium-related room into a first tritium-related area; If the tritium-related risk index of the tritium-related room is larger than or equal to the first concentration limit value and smaller than the second concentration limit value, dividing the tritium-related room into a second tritium-related area; If the tritium-related risk index of the tritium-related room is larger than or equal to the second concentration limit value and smaller than the third concentration limit value, dividing the tritium-related room into a third tritium-related area; The tritium-related risk index is used for representing the percentage of days, in which the tritium concentration in a tritium-related room exceeds the limit value of the derived air concentration, to the total number of days, and the tritium inclusion levels of the first tritium-related area, the second tritium-related area and the third tritium-related area are sequentially increased.
3. The method of claim 2, wherein the first concentration limit is 10% of the derived air concentration limit, the second concentration limit is 30% of the derived air concentration limit, and the third concentration limit is 100% of the derived air concentration limit.
4. The method of claim 1, wherein for any tritium-related region, the annual average tritium release rate of the tritium-related region is determined as follows: determining the matched reference joint length and concentration low limit value according to the tritium inclusion grade of the tritium-related region; Calculating a first ratio of the total length of the pipeline joint in the tritium-related region to the length of the reference joint; Calculating a first product of the space volume of the tritium-related region and the concentration low limit value, and determining a second ratio of the first product to the annual standard duration; And calculating a second product of the first ratio and the second ratio, and taking the second product as an annual average tritium release rate.
5. The method of claim 4, wherein for any candidate partitioning scheme, determining a system balance time for the candidate partitioning scheme based on a spatial volume of each tritium-related region, an annual average tritium release rate, and a preset net air volume comprises: based on the space volume, the net air discharge quantity and the tritium release rate of each tritium-related region, constructing a dynamic ventilation model for representing the change of the tritium concentration in each tritium-related region along with time; And solving the dynamic ventilation model to obtain the region balance time of each tritium-related region, and taking the maximum value in the region balance time as the system balance time, wherein the region balance time is used for representing the duration of reaching the preset proportion of the corresponding theoretical equilibrium concentration of the tritium-related region.
6. The method of claim 1, further comprising nesting the high tritium containment region in the low tritium containment region for any two spatially adjacent high tritium containment regions and low tritium containment regions of adjacent tritium containment levels to form a unidirectional air permeation path from the low tritium containment region to the high tritium containment region.
7. The method of claim 6, wherein the unidirectional air permeation pathway is implemented in such a way that the net air output of each tritium-related region is configured to monotonically increase with increasing tritium containment level.
8. A fusion device tritium containment zoning device, the device comprising: The dividing module is used for primarily dividing each tritium-related room into a plurality of tritium-related areas with different tritium inclusion grades based on a preset tritium-related concentration limit value; The first processing module is used for identifying a transition room between two tritium-related areas with adjacent spatial positions and adjacent tritium inclusion grades, and generating a plurality of different candidate partition schemes by adjusting the tritium-related areas to which the transition room belongs; The second processing module is used for determining the system balance time of any candidate partition scheme based on the space volume of each tritium-related region, the annual average tritium release rate and the preset net air discharge quantity; and the determining module is used for identifying the shortest system balance time in the system balance times and determining the candidate partition scheme corresponding to the shortest system balance time as the target partition scheme.
9. A computer device, comprising: a memory and a processor communicatively coupled to each other, the memory having stored therein computer instructions that, upon execution, perform the deuterium-tritium fusion device containment zoning method of any one of claims 1 to 7.
10. A computer readable storage medium having stored thereon computer instructions for causing a computer to perform the deuterium-tritium fusion device containment zoning method of any one of claims 1 to 7.

Description

Method, device, equipment and medium for containing and partitioning deuterium-tritium fusion device Technical Field The application relates to the technical field of nuclear facilities, in particular to a containment partitioning method, a containment partitioning device, containment partitioning equipment and containment partitioning medium for a deuterium-tritium fusion device. Background Fusion energy development is one of the key ways to solve the future clean energy demands, and the operating fuels deuterium and tritium are radioactive, and especially tritium can cause serious harm to human bodies through internal irradiation. During operation of the fusion device, high energy neutrons generated by deuterium-tritium fusion activate the in-reactor structural materials, producing radioactive activation products. To prevent tritium and activated products from being released to the environment, effective containment measures must be taken for the tritium-related area. At present, the main functions of a ventilation system of a related fusion experimental device (such as tokamak) are still concentrated on the temperature and humidity control of a hall room and the fresh air supply of personnel, and the design of the ventilation system does not fully consider the directional containment and efficient removal capability of tritium and radioactive substances. Disclosure of Invention The application provides a deuterium-tritium fusion device containment partition method, a deuterium-tritium fusion device containment partition device, deuterium-tritium fusion device containment partition equipment and a deuterium-tritium fusion medium, which solve the technical problem that reliable tritium containment cannot be realized in the related technology, and achieve the technical effect of optimizing the dynamic response performance of a system. In order to achieve the above purpose, the main technical scheme adopted by the application comprises the following steps: According to the method, a tritium room is initially divided into a plurality of tritium-related areas with different tritium inclusion grades based on a preset tritium concentration limit value, a transition room between two tritium-related areas with adjacent spatial positions and adjacent tritium inclusion grades is identified, a plurality of different candidate partition schemes are generated by adjusting the tritium-related areas to which the transition room belongs, the system balance time of each candidate partition scheme is determined based on the spatial volume of each tritium-related area, the annual average tritium release rate and the preset net air volume for any candidate partition scheme, the shortest system balance time in each system balance time is identified, and the candidate partition scheme corresponding to the shortest system balance time is determined as a target partition scheme. According to the deuterium-tritium fusion device containment partition method provided by the embodiment, a risk area is initially divided according to a preset tritium concentration safety threshold value, and a plurality of candidate partition schemes are generated by systematically adjusting partition attribution of a transition room. Based on the space volume of each tritium-related region, the annual average tritium release rate and the preset net exhaust amount, the system safety performance is accurately quantized into a computable system balance time index. By automatically comparing the system balance time of each partition scheme, the target partition scheme with the fastest response is selected. The method ensures that the target partition scheme not only meets the safety standard in a static state, but also ensures the optimal dynamic response performance in a dynamic leakage scene, and realizes the quantitative optimization design of the tritium containing ventilation system of the fusion device. Optionally, the preset tritium-related concentration limit comprises a first concentration limit, a second concentration limit and a third concentration limit, each tritium-related room is initially divided into a plurality of tritium-related areas with different tritium containment levels based on the preset tritium-related concentration limit, the tritium-related rooms are divided into a first tritium-related area if tritium-related risk indexes of any tritium-related room are smaller than the first concentration limit, the tritium-related rooms are divided into a second tritium-related area if tritium-related risk indexes of the tritium-related rooms are larger than or equal to the first concentration limit and smaller than the second concentration limit, the tritium-related rooms are divided into a third tritium-related area if tritium-related risk indexes of the tritium-related rooms are larger than or equal to the second concentration limit and smaller than the third concentration limit, the tritium-related risk indexes of the tritium-related r