【6A文】航空喷气式飞机CRJ-200防火和过热保护英文培训课件.ppt

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1、1FIREANDOVERHEATPROTECTION2PROTECTEDAREASCARGOBAYLAVATORYAPUENGINEWHEELWELLSBLEEDAIR3TYPESOFPROTECTION4Fire/OverheatDetectionsystemsEngineJetpipeandpylonsAPUMainLandingGearBleedAir4FireExtinguishingsystems-Engine-APU-Cargo-Lavatory2SmokeDetectionSystemsCargoBayLavatory4FIRE/OVER

2、HEATDETECTION…..HowitworksDetectionloopsContinuousLoopsorwiresarestrungthroughouttheprotectedarea.Wireschangeinresistancewhenheatisapplied.Whentheresistancereachesaspecifiedamount,awarningisissued.5PylonSensors6FixedCoreCowlSensors7EngineSensors8JetPipeSensors9PylonSensorsJetPipeSe

3、nsorsFixedCoreCowlSensorsEngineSensors10PylonSensorsJetPipeSensorsFixedCoreCowlSensorsEngineSensorsLOOPASENSORYCIRCUIT11PylonSensorsJetPipeSensorsFixedCoreCowlSensorsEngineSensorsLOOPBSENSORYCIRCUIT12PylonSensorsJetPipeSensorsFixedCoreCowlSensorsEngineSensorsLOOPA/BSENSORYCIRCUITDua

4、lDetectionLoopsThisguardsagainstfalsedetectionAircraftcanbebedispatchedwithoneoneloopinop.13FDCUFireDetectionControlUnitMonitorstheloopsComparestheresistanceofLoopAandBSendsaFIRE/OVHTsignaltotheEICASDiscriminatesbetweenarealfireandafalsefire14ENGINEFIREINDICATIONSMASTERWARNINGSFIREL

5、IGHTSEICASMESSAGEFIREBELL15EngineFireExtinguishers2FireBottles-locatedintheaftequipmentbay.TheBottlesarefilledwithHalonandNitrogen.2explosivesquibsareinstalledoneachbottle.Ifneeded,bothbottlescanbefiredintooneengine.16RTENGINEFIREINFLIGHTRTENGFIREMASTERCAUTIONFIREBELL17ENGINEFIREPRO

6、CEDURE1.MasterWarning—Push(silencesFireBell)FIREBELL18ENGINEFIREPROCEDURE2.ThrustLever—Idle19ENGINEFIREPROCEDURE3.ThrustLever—Shutoff20ENGINEFIREPROCEDURE4.EngineFireSwitch--Push21WhathappenswhenyoupushaFireSwitch?RHENGFIREPUSHAPUFIREPUSHBOTTLEARMEDPUSHTODISCHBOTTLE2ARMEDPUSHTODISC

7、H22WhathappenswhenyoupushaFireSwitch?RHENGFIREPUSHAPUFIREPUSHBOTTLEARMEDPUSHTODISCHBOTTLE2ARMEDPUSHTODISCHFIREBELL23WhathappenswhenyoupushaFireSwitch?RHENGFIREPUSHAPUFIREPUSHBOTTLEARMEDPUSHTODISCHBOTTLE2ARMEDPUSHTODISCHFIREBELL24WhathappenswhenyoupushaFireSwitch?ENGFIRESWITCH--PUSH-

8、-Bothfirebottlesqui