上海供应德国力士乐Rexroth电磁阀 REXROTH电磁阀的结构和工作原理 一:力士乐直动式电磁阀 有常闭型和常开型二种。常闭型断电时呈关闭状态,当线圈通电时产生电磁力,使动铁芯克服弹簧力同静铁芯吸合直接开启阀,介质呈通路;当线圈断电时电磁力消失,动铁芯在弹簧力的作用下复位,直接关闭阀口,介质不通。结构简单,动作可靠,在零压差和微真空下正常工作。常开型正好相反。如小于φ6流量通径的电磁阀。 力士乐电磁阀原理:常闭型直动式电磁阀通电时,电磁线圈产生电磁吸力把阀芯提起,使关闭件离远开阀座密封副打开;断电时,电磁力消失,靠弹簧力把关闭元件压在阀座上阀门关闭。(常开型与此相反) 特点:在真空、负压、零压时能正常工作,但一般通径不超过25mm。DN50以下可任意安装,但电磁头体积较大。 二、力士乐分步直动式电磁阀 REXROTH电磁阀采用一次开阀和二次开阀连在一体,主阀和导阀分步使电磁力和压差直接开启主阀口。当线圈通电时,产生电磁力使动铁芯和静铁芯吸合,导阀口开启而导阀口设在主阀口上,且动铁芯与主阀芯连在一起,此时主阀上腔的压力通过导阀口卸荷,在压力差和电磁力的同时作用下使主阀芯向上运动,开启主阀介质流通。当线圈断电时电磁力消失,此时动铁芯在自重和弹簧力的作用下关闭导阀孔,此时介质在平衡孔中进入主阀芯上腔,使上腔压力升高,此时在弹簧复位和压力的作用下关闭主阀,介质断流。结构合理,动作可靠,在零压差时工作也可靠。如:ZQDF,ZS,2W等。 力士乐电磁阀原理:它是一种直动和先导式相结合的原理,当入口与出口压差≤0.05Mpa,通电时,电磁力直接把先导小阀和主阀关闭件依次向上提起,阀门打开。当入口与出口压差>0.05Mpa,通电时,电磁力先打开先导小阀,主阀下腔压力上升,上腔压力下降,从而利用压差把主阀向上推开;断电时,先导阀和主阀利用弹簧力或介质压力推动关闭件,向下移动,使阀门关闭。 特点:在零压差或真空、高压时亦能可靠工作,但功率较大,要求竖直安装。 三、力士乐间接先导式电磁阀 该系列电磁阀由先导阀和主阀芯着形成通道组合而成;常闭型在未通电时,呈关闭状态。当线圈通电时,产生的磁力使动铁芯和静铁芯吸合,导阀口打开,介质流向出口,此时主阀芯上腔压力减少,低于进口侧的压力,形成压差克服弹簧阻力而随之向上运动,达到开启主阀口的目的,介质流通。当线圈断电时,磁力消失,动铁芯在弹簧力作用下复位关闭先导口,此时介质从平衡孔流入,主阀芯上腔压力增大,并在弹簧力的作用下向下运动,关闭主阀口。常开式原理正好相反。如:SLA,DF(φ15以上口径),ZCZ等。 力士乐电磁阀原理:通电时,电磁力驱动先导阀打开先导阀,主阀上腔压力迅速下降,在主阀上下腔内形成压差,依靠介质压力推动主阀关闭件上移,阀门开启;断电时,弹簧力把先导阀关闭,入口介质压力通过先导孔迅速进入主阀上腔在上腔内形成压差,从而使主阀关闭。 上海供应德国力士乐Rexroth电磁阀 力士乐Rexroth电磁阀从原理上分为三大类 ( 即:直动式、分步童先导式 ) 而从阀瓣结构和材料上的不同与原理上的差别又分为六个分支小类 ( 直动膜片结构、分步重片结构、先导膜式结构、直动活塞结构、分步直动活塞结构、先导活塞结构 ) 力士乐直动式燃气电磁阀:电磁线圈发生电磁力把封闭件从阀座上提起,燃气电磁阀工作原理:通电时。阀门打开;断电时,电磁力消散,弹簧把封闭件压在阀座上,阀门封闭。但通径一般不超过 25mm 力士乐Rexroth电磁阀电磁阀特点:真空、负压、零压时能正常工作。 力士乐散布直动式燃气电磁阀:当进口与入口没有压差时,燃气电磁阀工作原理:一种直动和先导式相联合的原理。通电后,电磁力直接把先导小阀和主阀封闭件依次向上提起,阀门打开。当进口与出口达到启动压差时,通电后,电磁力先导小阀,主阀下腔压力上升,上腔压力降落,从而利用压差把主阀向上推开;断电时,先导阀利用弹簧力或介质压力推动封闭件,向下移动,使阀门封闭。但功率较大,力士乐Rexroth电磁阀电磁阀特点:零压差或真空、高压时亦能可 * 动作。请求必需水平装置。 力士乐先导式燃气电磁阀:燃气电磁阀把先导孔打开,燃气电磁阀工作原理:通电时。上腔室压力敏捷降落,封闭件四周形成上低下高的压差,流体压力推动封闭件向上移动,阀门打开;断电时,弹簧力把先导孔封闭,进口压力通过旁通孔敏捷腔室在关阀件四周形成下低上高的压差,流体压力推动封闭件向下移动,封闭阀门。可任意安装 ( 需定制 ) 但必需满足流体压差条件。 力士乐Rexroth电磁阀电磁阀特点:流体压力范畴上限较高。 R901190748 4WE10J2B3X/CG24N9K4SO99 R901176614 4WE10P3X/CG24N9K4/A12 R901154170 4WE10C3X/CG24N9K4/B12 R901147263 5-4WE10C3X/CG24N9K4/V R901095152 3WE10A4-3X/CG24N9K4 R901028564 4WE10UA3X/CG24N9K4SO99 R900702770 3WE10B3X/CG24N9K4/B12V R900702215 5-4WE10J2-3X/CG24N9K4 R900619743 5-4WE10F3X/CG24N9K4/A06 R900619183 5-4WE10C3X/CG24N9K4/CB30 R900619147 4WE10E3X/CG24N9K4SO292 R900618783 5-4WE10UA3X/CG24N9K4 R900618112 4WE10X5-3X/CG24N9K4 R900608561 4WE10J3X/CG24N9K4SO99 R900599947 4WE10J3X/CG24N9K4/T06 R900599646 4WE10L3X/CG24N9K4 R900599497 5-4WE10W20-3X/CG24N9K4/A07 R900599076 4WE10Q3X/CG24N9K4/V R900599012 4WE10U1-3X/CG24N9K4 R900598662 4WE10HA3X/CG24N9K4 R900598653 4WE10U2-3X/CG24N9K4 R900598583 4WE10R3X/CG24N9K4 R900598541 5-4WE10G3X/CG24N9K4/C R900598531 5-4WE10Y3X/CG24N9K4/C R900598389 5-4WE10C3X/CG24N9K4 R900598151 4WE10G3X/CG24N9K4/T06 R900597986 4WE10H3X/CG24N9K4 R900597452 5-4WE10Q3X/CG24N9K4/C R900597253 4WE10UA3X/CG24N9K4 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