核电站EPR机组首次装料、卸料以及再装料的方法
By installing neutron detectors within the enclosure structure of the EPR unit of the nuclear power plant and using the installed fuel assemblies for support, orderly fuel assembly installation and removal were achieved, solving the risk and efficiency issues during the loading and unloading process and reducing the radiation risk to workers.
CN117153441BActive Publication Date: 2026-07-17CHINA GENERAL NUCLEAR POWER OPERATION
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA GENERAL NUCLEAR POWER OPERATION
- Filing Date
- 2023-08-10
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing technologies, the fuel assembly loading and unloading process of nuclear power plant EPR units lacks a fixed sequence, resulting in high operational risks and long working hours, and increasing the radiation risk to workers.
Method used
By installing neutron detectors within the enclosure structure and using the pre-installed fuel assemblies for support, the fuel assemblies are installed and removed in a specific order, and the process is divided into zones to ensure that each assembly is installed and removed in an orderly manner.
Benefits of technology
It shortens working hours, reduces radiation risks to workers, and improves the safety and efficiency of loading and unloading processes.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117153441B_ABST
Abstract
本申请涉及一种核电站EPR机组首次装料、卸料以及再装料的方法，首先在四个阶梯围板的内侧分别安装一个中子探测器；从三个平面围板的第一端向第二端依次紧贴地分别安装三根燃料组件，其中第三根燃料组件携带有初级中子源组件；紧贴围板结构安装第10根及之后的部分燃料组件；选取其中一个中子探测器，在其相邻位置再安装一根燃料组件；以已安装好的燃料组件提供两面或三面支撑，继续安装燃料组件。本申请将燃料组件根据所处围板结构内的位置将其列为不同的处理方法，在安装 / 拆除过程中能够通过围板和已经安装好的燃料组件作为参考，有序的安装 / 拆除燃料组件，从而缩短了工作人员的工作时间，降低了工作人员收到辐射的风险。
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