高压水清洗技术在反应堆退役工程中的验证试验

384Vol.38,No.420047AtomicEnergyScienceandTechnologyJuly2004,,(,732850):,1,:;;:TL949:A:100026931(2004)0420373206CheckExperimentoftheHighPressureWaterWashingTechnologyUsedtotheDecommissioningofReactorHANJian2ping,HOUYong2ming,FUYun2shan(LanzhouNuclearFuelComplex,Lanzhou732850,China)Abstract:Highpressurewaterwashingtechnologyhasbeenwidelyappliedinthefieldofthedecommissioningofnuclearfacilities,anditisusedtowashthesumpforcraftconveyance,thecraftworkshop,thehermeticsump,andsomeothernuclearequipmentsaswell.Wehavegotasetoftechnicaldatacorrelatedwithhighpressurewaterwashingtechnologybycomparingthesituationsbetweenthetestbeforeandafterthewashingwork.Atthesametime,wealsoimproveourtechniqueonsomespecialcases,whichmadethehighpressurewaterwashingtechnologymoreprefectinthefieldofthedecommissioningofnuclearfacili2ties.Keywords:highpressurewaterwashing;decontamination;technicaldata:2003207228;:2003211216:(1968),,,,,[1]1994,,,[2],,,,11),;2),;3);4);5)2,:;,,;,;,,,,,,,,,,,1(512m317m616m,,23m3)8(7),12,,333:,1m,30MPa,30min,,,98%,,,,,3,45,,29min,2850MPa,31Table1Technologicalparameterandeffectsofthesumpforcraftconveyancewashedbyhighpressurewater/MPa/min/(Bqkg-1)/(Bqcm-2)/(Bqkg-1)/(Bqcm-2)3030112810821341031122108310510230302113108717810391541072139102:473382Table2Technologicalparameterofthecraftworkshopwashedbyhighpressurewaterblasting/MPa/m2/min/L/(BqL-1)1405360091891032402360021251033404714004404106614128051981035301124163741611210464041218372411651027256141720588110102830631325311105102940616187336861241023Table3Technologicalparameterandeffectsoftheemulationexperimentsetwashedbyhighpressurewater/MPa/min/cm()14621625103246216351045734661235104511442917115508153116286167523:,3040MPa,50MPa,12min,3040MPa,160200L/min,40cm,12min,,3311(1719m6m,22125m)28012640Gy/h,,,,,,6m22m600mm4(1),1,5734:,40cm,20m2/h1Fig.1Sketchoftheequipmentusedtothesumpforcraftconveyancebyhighpressurewater,,10MPa23min20MPa22min30MPa21min3,,30MPa21min312(2614m4115m),1m;80650Gy/h,1000Bq/cm2,600mm4,(015410m),,,,40cm313:1),;2);3),,,,,,015315m,,:315m30MPa,,,4,,456:62111%98198%,,;93%,,,;65139%95199%,673384Table4Effectsofthesumpforcraftconveyancewashedbyhighpressurewater/(Gyh-1)/%/(Gyh-1)/%113609818931472000871595163262511215821009752257619233354586157360871575169413421587187413666215958516652323034089147126406209510965201307510064024215621117440708410972011215841388280807114356095831049640072159818777607818981982806400453403601264087156205Table5Effectsofthehermeticsumpwashedbyhighpressurewater/(Gyh-1)/%/(Gyh-1)/%1A1501510018B10020655C500208517D350151005027517.593.6487.522.574.292A1001.550045B1503.5C1505D1506137.5497.095004599.103A16033005B20032505C20063503D35052004E150132004212697.172604.298.384A30044002.5B65031502C25042203D8021002E20025002.5296398.992742.499.127734:6Table6ResultofthecraftworkshopwashedbyhighpressurewaterblastingBqcm-2/%/%/%/%12.412.806.871.0285.15532.54113.5478.3114.363.7374.03218.8020.810.011.0913.050.0199.9216.563.5178.80318.511.0294.491.800.8950.5614.201.5189.3715.508.5844.654143.5188.8738.073.940.1695.9437.101.1097.0411.514.7059.17525.950.0199.961.871.0245.458.941.6281.6718.104.1677.0261.650.0199.396.140.0199.8412.432.4880.0570.430.0197.6716.002.1486.6320.706.5868.2287.780.8788.823.851.8554.8621.869.3656.59910.951.3687.5817.518.8249.9732.9715.1386.403.620.7769.2870.3813.6586.1316.475.7665.39/%/%/%139.900.5598.6217.708.2753.281.950.0199.49295.221.3598.5853.101.3497.480.960.0198.96335.970.0199.977.190.0199.860.060.0183.33437.100.7597.98131.9019.1785.470.100.0190.00522.220.7596.5817.508.4151.940.550.2456.36611.800.0199.92711.782.2680.81859.901.6997.18919.501.1294.2637.040.9495.9945.487.4477.610.720.0685.635,,,,,,:[1].[M].:,2000146481[2],,,1[R]1:,2001.87338