冷源拦网在不同堵塞情景下的海流载荷致险分析

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中图分类号：P731.21 文献标志码：A 文章编号：1005-9857（2025）09-0058-11

Experimental Study on the Biological Blockage Response of the Network Which Protects the Cold Source of Nuclear Power Plant

WANG Yongxin Yao Xingrui Lin Xudong Niu Maochang

Abstract：This studyanalyzes the structural stress characteristicsofa debris filternetunder various marine biological blockageconditions.Firstly，the velocityofcurrents near Water intake is measured based on shipborme ADCP，using the Karman-Prandtl modelandpolynomial interpolationmethods wereemployed toreconstructthe vertical velocityprofiles fromstratifiedobservationdata．Subsequently，tafinite element（FE）modelofthe filternet wasdeveloped，andits mechanicalresponse wascalculated under diferent blockage scenarios.Theresults indicate that thethree-orderpolynomial fiting is more suitable fortheobservationsea areathan the Karman-Prandtlmodel．When the blocking heightisless than 7m ，the minimumoftheforceissmall，whichis thesafety zoneof therope; when theheightofblockage is greaterthan 7m ， themaximumoftheforceshowsasignificantlinearincreasewiththeelevation increasing.Consequently，thesectionofthe net above 7m is identifiedasahigh-risk area，where the structural risk escalates graduallywith increasing blockage height. Keywords： Curent velocity observation，Velocity profile fiting of，Nuclear power cold source safety of，Law of network response

0 引言

某核电站为最大限度地节约能源，采用海水直冷系统。（剩余16686字）