一体化小型压水堆关键设备维修可达性探讨

Maintenance Accessibility for Key Equipments in Integrated Small Pressurized Water Reactors

一体化小型压水堆设备布置紧凑,空间狭小,维修可达性一直是设计、运维阶段人们关注的重点和难点,但业内没有定性的方法来有效地评价维修可达性。可维修性优的产品在保证可靠性的同时,还能保证维修所需资源(时间、人力、物力、费用等)达到最低限度,在保证维修安全的前提下,保证维修经济的最优化。文中基于小型压水堆一体化的设计特点,分析关键设备的维修需求,提出维修可达性的评价指标。

Integrated small pressurized water reactors are with compact layout of equipment and with narrow space, and its maintenance accessibility has always been a challenge in the design and operation period. But there is no qualitative method for the effective evaluation of the maintenance accessibility. Products with good maintainability not only ensure the reliability, but also ensure the minimum maintenance required resources （such as time, manpower, material and costs）, and thus ensure the optimized maintenance economy under the premise of safe maintenance. Based on the design features of the integrated small pressurized water reactors, this paper analyzes the key equipment maintenance requirements, and presents the maintenance accessibility evaluation index.