堵漏、充氮措施（IAEA）

1、IAEAInternational Atomic Energy AgencyStatus of Fukushima UnitsMiroslav Lipar7 April 2011IAEAUnit 1234Power (MWe /MWth)460/1380784/2381784/2381784/2381Type of ReactorBWR-3BWR-4BWR-4BWR-4Status at time of EQ In service auto shutdownIn service auto shutdownIn service auto shutdownOutageCore and fuel i

2、ntegrityDamagedSevere damageDamagedNo fuel in the ReactorRPV & RCS integrityRPV temperature high but stableRPV temperature stableRPV temperature stableNot applicable due to outage plant statusContainment integrityNo informationDamage suspectedDamage suspectedAC PowerAC power available - power to

3、 instrumentation Lighting to Central Control RoomAC power available power to instrumentation Lighting to Central Control RoomAC power available power to instrumentation Lighting to Central Control RoomAC power available power to instrumentation Lighting to Central Control RoomBuildingSevere damageSl

4、ight damageSevere damageSevere damageWater level of RPVAround half of Fuel is uncovered Around half of Fuel is uncovered Around half of Fuel is uncovered Not applicable due to outage plant statusPressure of RPVIncreasingStableStableCV Pressure DrywellIncreasingStableStableWater injection to RPVInjec

5、tion of freshwater via mobile electric pump with off-site powerInjection of freshwater via mobile electric pump with off-site powerInjection of freshwater via mobile electric pump with off-site powerWater injection to CVNo informationNo informationNo informationSpent Fuel Pool StatusFresh water spra

6、ying completed by concrete pump truckFreshwater injection to the Fuel Pool Cooling LineFreshwater injection via Fuel Pool Cooling Line and Periodic sprayingFresh water spraying completed by concrete pump truckIAEAUnit 56Power784/23811100/3293Type of ReactorBWR-4BWR-5Status at the EQ occurredOutageOu

7、tageCore and FuelCold ShutdownBeing maintained using off-site electrical power and existing plant equipment.Cold ShutdownBeing maintained using off-site electrical power and existing plant equipment.RPV & RCS integrityContainment int.AC PowerBuilding Water level of RPVPressure of RPVContainment

8、PressureWater injection to RPVWater injection to CVSpent Fuel Pool StatusSevere conditionConcernNo immediate concernIAEACondensate Storage tank1900 m3Suppression Pool Surge Tanks2x3400 m32nd StepTransfer to provide tank capacity Mar 31st to Apr 2nd Unit 13rd StepProvide Space in CondenserApr 2nd Uni

9、t 1Mar 24th Mar 29th1st StepCondenser filledTemp Storage TankPlannedSequence of Events to Remove Water in Unit 1IAEACondenser3000 m3Condensate Storage tank2500 m3Suppression Pool Surge Tanks2x3400 m31st Step -Transfer to provide tank capacity Mar 29th to Apr 1st Unit 22nd Step - Transfer to provide

10、capacity in condenserApr 2nd (30 m3/h)PlannedPlannedSeaApr 5th10,000 tonsUnit 5 & 6 sub drain pitsApr 5th 1,500 tonsLow level contaminated water Temp Storage TankSequence of Events to Remove Water in Unit 2IAEACondenser3000 m3Condensate Storage tank2500 m3Suppression Pool Surge Tanks2x3400 m31st

11、 Step -Transfer to provide tank capacity Mar 28th to Mar 31st - Unit 32nd Step - Transfer to provide capacity in condenserApr 5th Unit 3LaterLaterSeaApr 5th10,000 tonsUnit 5 & 6 sub drain pitsApr 5th 1,500 tonsLow level contaminated water Temp Storage TankSequence of Events to Remove Water in Unit 3IAEA Borehole Injection of Tracer Injection of liquid glassCross Section PlanScreen Pump roomFloor PlanCable TrenchPitInjected liquid glass to block the water path in the gravelInjection of water glass to block the water path:Positi