FlameRectification：火焰矯正

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1、FlameRectificationRememberOhm’sLawE=IXRAppliedACvoltage+-++-AlternatingCurrentSineWaveBasicElectricalCircuit+-SOURCECONDUCTORLOADCONTROLFlameRectificationcircuit!Whatdevicesareusedforelectrodes?FlamerodBurnerTheVoltageSourceistheIgnitionControlThe“l(fā)oad”istheflamesensingcircuitinsidethecontrol

2、Theconductorsaretheelectrodesalreadyidentified.Whatactsasthe“switch”?Theflamecompletesthecircuit.FlameRectificationCircuitFlameSenseCircuitOneelectrodeislargerthantheothercausingelectronflowtobegreaterinonedirectionthanintheother.Comparetheburnersizetotheflamerodsize.+0-5?aCurrentflowwhenflam

3、erodispositive+_FG+0-1?aCurrentflowwhenflamerodisnegative+_FGAppliedACvoltage-++-??a??aEffect=4?apulsatingDCEffectiveFlameSignalRememberOhm’sLaw?Whathappensinacircuitifresistanceincreasesandvoltagestaysthesame?FlameRectificationCircuitTypicalFlameDetectionCurrentNeedtomeasureAC?AaswellasDC?AT

4、ypicalin-shotburnerDCcurrentis2-5?Awitha4-8?AACleakage.DCcurrentislessthan1?AandACcurrentisatorabove4?A1.Flamesignalisweak2.CorrectiveactionisrequiredDCCurrentvs.ACCurrentDCCurrentvs.ACCurrentDCCURRENTACCURRENTACDROPOUT0.53.9410.391.04.3717.281.54.8820.12.05.4520.302.56.2024.373.06.9524.203

5、.58.2924.22RememberOhm’sLaw?Whathappensinacircuitifresistanceincreasesandvoltagestaysthesame?Whatcanaffecttheresistanceinthecircuit?Whatelsecanaffecttheflamesignal?FlameRectificationCircuitIncreasedcircuitresistancesBurneroxidationNon-secureburnerFlame“l(fā)iftoff”LoosewireconnectionsContaminated

6、flamesensorFaultygroundsNogroundsReversepolarity