论文部分内容阅读
1.前言目前世界上广泛应用的核动力反应堆主要是轻水堆。根据水在反应堆内的工作条件轻水堆可分为压水堆(不允许载热剂水在堆内气化,整个系统保持在高压状态下工作)和沸水堆(允许水在堆内沸腾)。大功率压水堆核电站一回路系统一般有2～4条对称连接在反应堆压力容器上的密闭环路(见图1),可见一回路管道部件(直管、弯头、三通)与核反应堆压力容器一样同属
1. Foreword At present, the nuclear power reactors widely used in the world are mainly light water reactors. Depending on the working conditions of water in the reactor, a light water reactor can be divided into a pressurized water reactor (which does not allow vaporization of the heat-generating agent gas inside the reactor, the entire system is kept under high pressure) and a boiling water reactor (allowing water to boil within the reactor) . High-pressure PWR nuclear power plant first-line system generally has 2 to 4 symmetrically connected to the reactor pressure vessel closed loop (see Figure 1), showing a loop of pipe components (straight pipe, elbow, tee) and nuclear reactor pressure Like the same container