RESEARCH AND APPLICATION OF CONTAINMENT STRUCTURAL HEALTH MONITORING SYSTEM DURING OPERATION OF NUCLEAR POWER PLANT

The containment of the nuclear power plant is an important item of the tolerance nuclear steam supply system. It is the third barrier to prevent radioactive waste from leakage after an accident. It is the most important structure of nuclear power plant ensuring the safety of nuclear power plants. To ensure that the containment meets the design requirements during the service period during service, Structure integrity test is done every ten years to verify whether the performance of the containment meets the design requirements. However, through the cycle Structure integrity test, the structural state of the containment is obtained every ten years. It is unable to obtained in real time. When the accident conditions occur, the structural state of the containment cannot be evaluated quickly and unable to assist the containment related decision-making. In order to ensure the safe operation of the containment during the service time, at the same time improve the intelligent level of the safety monitoring of the containment, developing a set of intelligent monitoring and evaluation and early warning systems to achieve daily monitoring, abnormal state warning, healthy real-time real-time monitoring, abnormal state warning, abnormal state warning, abnormal state early warning, healthy Status assessment are very necessary.