交流燃油泵电路BUSELECTRICALINSTALLAT.pptx

交流燃油泵电路主讲人牛小伟ZHENGZHOURAILWAYVOCATIONALTECHNICALCOLLEGE客车电气装置/BUSELECTRICALINSTALLATION主讲人牛小伟SpeakerNiuxiaowei

交流燃油泵电路下油箱燃油供给系统由一个车上燃油箱两个车下燃油箱两个交流电动齿轮燃油泵（其中一台为备用）一个手动油泵滤清器阀和管路等组成Thefuelsupplysystemconsistsofanon-boardfueltank,twofueltanksunderthecar,amanualfuelpump,twoACelectricgearfuelpumps(oneofwhichisabackup),filter,valveandpipelineetc.

交流燃油泵电路简化图Simplifieddiagram燃油供给系统示意图Schematicdiagramoffuelsupplysystem在一般情况下使用电动齿轮燃油泵，从下燃油箱向上燃油箱泵油；当停止发电或电动齿轮燃油泵发生故障时，可用手动油泵进行泵油。将配电屏泵油开关设在自动泵油位，可实现上燃油箱油位自动调控。Undernormalcircumstances,anelectricgearfuelpumpisusedtopumpfuelfromthelowerfueltanktotheupperfueltank.Whenthepowergenerationstopsworkingortheelectricgearfuelpumpfails,themanualpumpcanbeusedtopumpfuel.Settingthefuelpumpswitchonthedistributionpaneltotheautomaticpumpfuelmodelcanrealizetheautomaticregulationofthefuelleveloftheupperfueltank.1

交流燃油泵电路柴油机从上燃油箱到柴油机分别有三条管路通向最低点当上燃油箱油位下降到设置的时（表上显示1／4），齿轮油泵自动起动，向上燃油箱注油，当油位升至设置的最高点时，齿轮油泵自动停止工作。如果油位下降到最低点以下，齿轮油泵仍不工作，配电室内的油位控制仪将发出声光报警。Whenthefuelleveloftheupperfueltankdropstothesetminimumpoint(shownonthemeteras1/4),thegearfuelpumpstartsautomaticallyandfillstheupperfueltankwithfuel.Whenthefuellevelrisestothehighestpointset,thegearfuelpumpwillstopworkingautomatically.Ifthefuelleveldropsbelowtheminimumpointandthegearfuelpumpstillstopsworking,thefuellevelcontrollerinthepowerdistributionroomwillemitanaudibleandvisualalarm.32打开1、2、3号机组供油阀，可实现供油。发电车不用时，应关闭相应供油阀Fromtheupperfueltanktothedieselengine,therearethreepipelinesleadingtothedieselengine.Openthefuelsupplyvalvesofunits1,2,and3torealizefuelsupply.Whenthegeneratorcarisnotinuse,thecorrespondingfuelsupplyvalveshouldbeturnedoff.

交流燃油泵电路是发电车为将下油箱的柴油抽到上油箱而设置的，发电车上一般设有油泵两个交流油泵和一个手动油泵每个交流油泵都一台交流电机驱动的。运用中的发电车油泵电路各异，图中所示的交流油泵电路是是功能较为完美善的一类油泵电路。Thefu