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Simplified pipeline equipment room overall critical safety analysis method

A critical safety, analysis method technology, applied in computer-aided design, design optimization/simulation, special data processing applications, etc. Effect

Pending Publication Date: 2022-03-25
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, there is no method for the overall criticality safety analysis of pipelines in equipment rooms of spent fuel reprocessing plants in China.

Method used

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  • Simplified pipeline equipment room overall critical safety analysis method
  • Simplified pipeline equipment room overall critical safety analysis method
  • Simplified pipeline equipment room overall critical safety analysis method

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0032] figure 1 It shows a flow chart of the simplified overall criticality safety analysis method for the pipeline equipment room provided in the specific embodiment of the present invention, and the method includes the following steps:

[0033] Step S1. According to the medium in the pipelines, all the pipelines in the equipment room to be analyzed are screened and analyzed, and the pipelines containing the fissile material solution are selected as effective pipelines, and the total volume of the effective pipeline feed liquid is calculated.

[0034] In a preferred embodiment, the specific method of screening and analyzing pipelines is: screening pipelines whose feed liquid is gas or containing no fissile material solution, so as to obtain effective pipelines through screening. For pipelines that may transport multiple media, the concentration o...

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Abstract

The invention relates to an integral critical safety analysis method for a simplified pipeline equipment room, which belongs to the technical field of nuclear critical safety analysis, and comprises the following steps: screening all pipelines of an equipment room to be analyzed according to media in the pipelines, screening out pipelines containing fissile material solution as effective pipelines, and calculating the total volume of feed liquid in the effective pipelines; a simplified pipe bundle model is established, and all pipelines are closely arranged according to the minimum arrangement interval; keeping the total volume of the material liquid of the tube bundle model unchanged, and changing the number and height of the tube bundle model to obtain the tube bundle size with the maximum reactivity of the simplified tube bundle model; the simplified tube bundle model with the maximum reactivity is tightly attached to the side of the equipment with the maximum reactivity in the equipment chamber in a mode of maximum interaction. The method provided by the invention is simpler and more convenient than the process of finely establishing the pipelines one by one, the calculation and analysis efficiency is improved, and the problem that the calculation result exceeds the critical safety acceptance criterion due to the fact that the pipeline feed liquid is simply gathered and excessively conservative is avoided.

Description

technical field [0001] The invention belongs to the technical field of nuclear criticality safety analysis, in particular to a method for simplifying the overall criticality safety analysis of a pipeline equipment room. Background technique [0002] When processing fissile materials in solution state, pipelines are often used to transfer the feed liquid of fissile materials between various processing equipment. Because the facilities for processing fissile materials in solution state often have complicated process flow and high concentration of fissile materials, The number of pipelines arranged in the equipment room is also large, and the total amount of material and liquid is also huge. The overall criticality safety of the equipment room containing pipelines has become a key issue that cannot be ignored. The overall criticality safety analysis of the equipment room must consider the impact of these pipelines on criticality safety. . The pipeline layout of the equipment r...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F113/14
CPCG06F30/20G06F2113/14
Inventor 陈添张毅诚胡小利费钧天易璇邵增杨海峰于淼
Owner CHINA NUCLEAR POWER ENG CO LTD
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