自动开封盖装置的故障分析与可靠性改善

摘要

Automatic capping device is one of major equipment in the solid waste treatment system ( TES) of nuclear power plant. It is used for capping or uncapping 400L metal ic drum which is used for storing low and intermediate level radioactive solid wastes. It is a complex electromechanical equipment, and its reliability has a direct impact on the safety of loading process and smooth operation of TES. According to its function and mechanical structure, The procedure of failure mode and effects analysis ( FMEA) is used to analyze al possible failure modes and causes of the equipment and their effect on it, in order to find out the product function design defects and the weak links and put forward precaution and improvement measures in design. The basis is provided for improving the equipment reliability.%自动开封盖装置是核电厂固体废物处理系统的核心设备，用于对贮存中、低放射性废物的400L金属桶进行开盖和封盖，是复杂的机电一体化设备，其可靠性直接影响废物桶封装过程的安全性，以及固体废物处理系统的稳定运行。针对设备功能和机械结构，采用故障模式及影响分析方法，对该设备的所有可能的故障模式、原因及其影响进行了分析，找出了产品功能设计的缺陷与薄弱环节，并提出了设计预防和改进措施，为提高产品的可靠性提供了依据。