Method for diagnosing substandard spent fuel assembly or its elements for subsequent storage and processing
	KRASNIKOV YU V; STEPANOV A M; STARODUBTSEV A V
	2024-04-01
专利权人	VORON AIRCRAFT CONSTR ENG BUREAU (VOAI-Non-standard)
申请日期	2024-04-01
专利号	RU2830515-C1
成果简介	NOVELTY - Invention relates to a method for diagnosing substandard spent fuel assemblies or elements thereof, extracted from a nuclear reactor or storage pool and intended for subsequent storage and processing, and can be used at nuclear power plants or spent nuclear fuel storages. When carrying out diagnostics, the canister with the above assembly or its fragments is preliminarily weighed in order to determine the preliminary assessment of the integrity of the above assembly and preliminary determination of the number of fuel elements. Weight of said assembly or its fragments is calculated taking into account the mass of condensate in the canister, the level and temperature of the condensate in the holding tank of the cassettes, as well as taking into account the geometric dimensions of the canister. Gamma-ray scanning of the active part of the above assembly or its fragments is carried out in order to determine the number of fuel elements in the bundle of fuel elements of the above assembly by rotating the canister with fuel assemblies around its longitudinal axis with determination of the number of possible fuel elements from the number of teeth on the radiation dose rate graph as a function of the angle of rotation at its rotation. Further, during vertical movement of the assembly, the location of its active part or its fragments is determined and a gap is marked between the upper bundle of fuel elements and the lower bundle of fuel elements on the surface of the canister and the state of the outer surface of the canister is visually inspected. USE - Measuring. ADVANTAGE - Improving reliability of the obtained data during diagnostics of substandard spent fuel assemblies or their elements placed in canisters in the spent fuel pool. 1 cl, 1 dwg
IPC 分类号	G21C-019/00
国家	俄罗斯
专业领域	化学化工
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/17431
专题	中国科学院新疆生态与地理研究所
作者单位	VORON AIRCRAFT CONSTR ENG BUREAU (VOAI-Non-standard)
推荐引用方式 GB/T 7714	KRASNIKOV YU V,STEPANOV A M,STARODUBTSEV A V. Method for diagnosing substandard spent fuel assembly or its elements for subsequent storage and processing. RU2830515-C1[P]. 2024.

条目包含的文件
条目无相关文件。

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。