海底原位观测技术在核电厂取水口安全监测中的应用探讨

Application of Seabed In-Situ Observation in Monitoring Sediment Transport at the Nuclear Power Plant Water Intake

冷源安全是核电机组安全稳定运行的保障。在核电厂运行过程中,有多种原因会导致取水口的堵塞,从而带来安全隐患,其中泥沙淤积,尤其是极端海况导致的骤淤,是主要的原因之一。极端海洋天气事件(如风暴潮等)引发的泥沙骤冲、骤淤在短时间内可引起大量的泥沙启动与输运,导致异地搬运与沉积,可能威胁到冷源安全。因此,核电厂取水口海域的泥沙输运原位实时监测十分重要。本文通过两个海底原位观测的应用实例来探讨该方法在核电厂取水口海域泥沙输运监测中的可行性与适用性,并据此提出相应的监测建议与方案,为冷源的安全稳定运行提供保障。

The safety of nuclear power cold source is an important factor that affects the safe and stable operation of nuclear power units.During the operation of nuclear power plant,there are many factors that lead to the blockage of water intake,among which sediment deposition is one of the main reasons.The extreme marine weather events(such as storms)can easily cause a large amount of sediment deposition in a short time(sudden silting),which will seriously threatening the security of cold source.Therefore,it is very important to in-situ monitor the sediment movement in the water intake area of nuclear power plant.This paper mainly discusses the feasibility of seabed in-situ observation in monitoring sediment movement in the water intake area of nuclear power plant through analyzing two related application examples,and puts forward related monitoring suggestions and schemes to to ensure the safe and stable operation of the cold source of nuclear power plant.