··Science&TechnologyVisionScience&TechnologyVision0,,,,。。,。1(),。,。1,A,B,,A、B,,AB,。1,,。,,。,,,,。,,,,,,。,。。,。,1,13,,V1,::()23,:,v3=v2,:,,:12。hmax,10。,,,,。,()8.5。:1);2);3),。22.1(CRF)、,。,()。,,,,。,,,,。,,,。2CRF(CRF),。,,,0.4。CRF,,,,,,,,。2.2(GST)10m,,,,,。,。(GST),;,。(,314300)【】本文介绍了流体力学中虹吸原理的基本现象和产生的必要条件,核电厂设计中应用了虹吸原理的重要虹吸管线功能,并对核电厂实际运行中因忽略了虹吸而引发的实际异常案例进行了分析总结,提出了避免虹吸事件的应对措施。【】虹吸原理;倒流;破坏虹吸;案例208Science&TechnologyVisionScience&TechnologyVision··3、,,,、。GST,。2.3(PTR)(PTR),,,。,,,10cm,。,10cm,,,。43,,,,。。3.1(SVA),,U。U。(APG),12m,APG,26.85m;,U。(8SVA001BA)(8SVA001/002PO)NB2800m,SVA、TEP、TEU,U。8SVA001BA,。,U。,,001BA,。U5m,17m22m,。53.2(EAS)PTRPA030(EAS001PO,EAS145VR),EAS125VR,EAS001BA,(PTR001BA)。EAS125VREAS909VR,EAS001BAEAS125VR。,:,NaOH,,26.7mm,,;。63.3(SEC)7(SEC)SEC/RRI、。SEC,。,,209··Science&TechnologyVisionScience&TechnologyVision(163),、;、、;,。、、,,,,,。:,。,,,!,!【】[1].[M].:,1992.[2].“”———[J].·,2011(5).[:]。,,。,。4,,,。4.14.1.1(CRF),,,,、、。(GST),。CET,,。。4.1.2CRF,,,。,,;PTR,10cm,、,(),。4.24.2.1、,、、,,。,,,,。,,,。,,,、,,。4.2.2SEC,。,,,。:、,,。。4.34.3.1SVA001BA,,,,,。SVA17,-7,0。()9,(8.5m),,,,,(U)13-14,5,,。、,,,。4.3.2,。,。,SVA,,;、,,。,,,、、,。8,,;,,,,。(PTR),10,。5、,、,,,、。、,、,。【】[1].3、4[Z].2014,5.[2].[Z].,2009,6.[3].[J].,1999,1.[:](169),。【】[1].[J].,2011(14).[2].[J].,2011(04).[3].[J].,2011(13).[:]210