国产气缸气动系统识别及原理认识

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,气动压力,气动系统,空气压缩机,压缩空气,气动执行元件,气动工作实例,气动控制元件,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit 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to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,气动压力,气动系统,空气压缩机,压缩空气,气动执行元件,气动工作实例,气动控制元件,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,气动压力,气动系统,空气压缩机,压缩空气,气动执行元件,气动工作实例,气动控制元件,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,气动压力,气动系统,空气压缩机,压缩空气,气动执行元件,气动工作实例,气动控制元件,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth 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styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,气动压力,气动系统,空气压缩机,压缩空气,气动执行元件,气动工作实例,气动控制元件,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth 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styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,气动压力,气动系统,空气压缩机,压缩空气,气动执行元件,气动工作实例,气动控制元件,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,气动压力,气动系统,空气压缩机,压缩空气,气动执行元件,气动工作实例,气动控制元件,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,设备基础知识 气动部分,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,国产气缸气动系统识别及原理认识,2024/9/10,2,培训课程的重要性,掌握一定的气动知识是更好地完成本职工作的需求，也是顺利开展,AM,第四步工作必要的知识储备。,气动系统应用广泛,掌握一定的气动知识对于我们驰骋职场，提升个人职业竞争力的必备技能,.,2024/9/10,3,课程目标,了解气动系统的基本组成及各气动元件的功用,.,理解常见气动元件的工作原理,.,能够识读气压表,并能进行常用压力单位的换算,.,能够正确调整气动元件,维护气动系统,2024/9/10,4,课程大纲,一,.,气动系统的基本组成,二,.,压力的概念及单位,三,.,空气压缩机种类,四,.,气源处理装置,五,.,常见气动执行元件原理及检查要点,六,.,常见气动控制元件,七、常用气动辅件,八、历史重大故障回顾,九,.,气动演示台的操作,2024/9/10,5,一,.,气动系统的基本组成,1.1,气动系统通常由以下三部分组成,:,1.,压缩空气的产生,2.,压缩空气的处理及传输,3.,压缩空气的消耗,设备基础知识 气动部分,6,1,、气动系统的构造,压缩空气的产生,压缩空气的处理及传输,压缩空气的消耗,2024/9/10,7,工厂压缩机房实图,储气罐,压缩机,干燥器,输送管道,工厂的压缩空气输送流程,设备基础知识 气动部分,8,低压压缩机,干燥,过滤,低压储存缸,高压压缩机,用途：生产线,吹瓶间,吹瓶模具,水份,微粒灰尘,去除,去除,按空压机输出压力大小分类,低压空压机,0,2,1,0MPa,中压空压机,1,0,10MPa,高压空压机,10,100MPa,超高压空压机 ,100MPa,2024/9/10,9,二,.,压力的概念及单位,2.1.,一些压力的概念,绝对压力：相对于绝对真空的压力值,表压力：相对于大气压的压力，比大气压高,真空度：相对于大气压的压力，比大气压低,标准大气压：温度为,0,，纬度为,45,度，海平面的大气压，现在已规定为,5,Pa,2024/9/10,10,二,.,压力的概念及单位,0,大气压,1Bar,2Bar,3Bar,4Bar,真空度,绝对压力,1Bar,2Bar,3Bar,表压力,1,标准大气压,=1.01325Bar(,相对于绝对真空,),绝对真空,2024/9/10,11,二,.,压力的概念及单位,2.2.,压力的单位,基本单位,: Pa,（,N/m,2,）,常用单位,: Mpa,、,Bar,工程单位,: Kgf/cm,2,英制单位,: psi,（,bf/in,2,）,2024/9/10,12,二,.,压力的概念及单位,压力单位的换算,1MPa=1X10,6,Pa=10Bar,1Bar=1X10,5,5,Pa,1kgf/cm,24,3,Pa,2024/9/10,13,二,.,压力的概念及单位,2.4,请大家看以下压力表并读出压力值,2024/9/10,14,2.5,压力表异常如何处理？,红色表示异常，,检查中发现如何处理？,蓝色表示正常,1,、及时按照指引调整,2,、报告领班、线长,设备基础知识 气动部分,15,三、空压机的工作原理,3.1,常见的空压机有活塞式空压机、叶片式空压机和螺杆式空压 机三种 。,1,）、下图为,单级活塞式空压机工作原理,。,设备基础知识 气动部分,16,三、空压机的工作原理,、叶片式空压机,无油螺杆（,DG,工厂使用,ing,）,轴向轴承,径向轴承,阴螺杆,阳螺杆,增速齿轮,迷宫型密封,水腔,油腔,透气孔,同步齿轮,平衡活塞,平衡膜片,设备基础知识 气动部分,18,四、气源处理装置,干燥,排水,减压,设备基础知识 气动部分,19,1,、,压缩空气的过滤装置,1,）、标准过滤器（,它清除主要管道内灰尘、水份和油,）,压缩空气从入口进入过滤器内部后，因导流板,1,（旋风叶片）的导向，产生了强烈的旋转，,在离心力作用下，压缩空气中混有的大颗粒固体杂质和液态水滴等被甩到滤杯,4,的内表面上，,在重力作用下沿壁面沉降至底部，然后，经过这样预净化的压缩空气通过滤芯流出，,进一步清除其中颗粒较小的固态粒子，清洁的空气便从出口输出。,设备基础知识 气动部分,20,1,、压缩空气的过滤装置,2,）、自动排水器,(Water separator),自动排水器用来自动排出管道、气罐、过滤器滤杯等最下端的积水。由于气动技术的广应用、靠人工的方法进行定期排污已变得不可靠，而且有些场合也不便于人工操作，因此自动排污装置得到广泛应用。自动排水器可作为单独的元件安装在净化设备的排污口处，也可内置安装在过滤器等元件的壳体内（底部）。,设备基础知识 气动部分,21,部位,序号,检查项目,检查方法和判定标准,过滤器,1,检查是否有排放物堆积,清洗过滤器时，检查是否有排放物堆积在过滤套内。,2,检查过滤套是否损坏和内部是否有污滞,清洗过滤器时，检查过滤套是否损坏和内部是否有污滞。,3,检查变流装置,取下过滤套，目视检查变流器是否破裂、有裂缝或损坏。,4,检查滤芯,取下滤芯，检查是否有污垢和堵塞。,5,检查隔板,移开过滤套，取下隔板和检查是否有污垢、裂缝或变形。,6,检查过滤器的安装角度,采用测量仪器检查过滤器是否垂直安装。,7,检查管子安装部位是否漏气,用肥皂水检查管子接头是否漏气。,日常检查要点,设备基础知识 气动部分,22,2,、压缩空气的调压装置,1,）减压阀,减压阀的作用,是将较高的输入压力调到规定的输出压力，并能保持输出压力稳定，不受空气流量变化及气源压力波动的影响。,减压阀的调压方式,有,直动式和先导式,两种。,直动式是借助弹簧力直接操纵的调压方式；,先导式是用预先调整好的气压来代替直动式调压弹簧进行调压的，一般先导式减压阀的流量特性比直动式好。,直动式减压阀通径小于,20,25mm,，输出压力在,0,范围内最为适当，超出这个范围应选用先导式。,设备基础知识 气动部分,23,2,、压缩空气的调压装置,（,1,）、,直动式减压阀,设备基础知识 气动部分,24,2,、压缩空气的调压装置,（,2,）、先导式减压阀,先导式减压阀：是使用预先调整好压力的空气来代替调压弹簧进行调压,的，其调节原理和主阀部分的结构与直动式减压阀相同。先导式减压阀,的调压空气一般是由小型的直动式减压阀供给的。若将这个小型直动式,减压阀与主阀合成一体，则称为,内部先导式减压阀,。若将它与主阀分,离，则称为,外部先导式减压阀,，它可以实现远距离控制。,设备基础知识 气动部分,25,2,、压缩空气的调压装置,（,3,）、先导式减压阀,设备基础知识 气动部分,26,部位,序号,检查项目,检查方法和判定标准,压力控制阀,8,检查压力控制阀的工作条件,当旋转压力调整旋钮时，通过阅读压力计检查是否操作正确。,9,检查压力计“,0,”点,阻止空气和检查压力计指针是否指向“,0,”。,10,检查压力计的控制范围,-,清洗压力计时，检查是否有破碎的玻璃容器、弯针和控制标记。,-,检查设备规格和控制范围，确认无异常现象。,11,检查管子接头是否漏气,用肥皂水检查管子接头是否漏气。,日常检查要点,设备基础知识 气动部分,27,3,、压缩空气的润滑装置,油雾器在使用中,一定要垂直安装,，它可以单独使用，也可以和,空气过滤器、减压阀、油雾器三件联合使用，组成气源调节装,置（通常称之为气动三联件），,使之具有过滤、减压和油雾润,滑的功能。联合使用时，其连接顺序应为空气过滤器一减压阀,一油雾器，,不能颠倒,，安装时气源调节装置应尽量靠近气动设,备附近，距离不应大于,5m,。气动三联件（,Air service unit,）的,工作原理图如图、外形图及图形符号如图所示。,设备基础知识 气动部分,28,3,、压缩空气的润滑装置,气动三联件,FRL,设备基础知识 气动部分,29,3,、压缩空气的润滑装置,气动三联件,FRL,设备基础知识 气动部分,30,部位,序号,检查项目,检查方法和判定标准,润滑器,12,检查润滑器的油量,清洗润滑器时，检查油位是否在上下限位之间。,13,检查油是否变质或混合了灰尘或杂质,移开过滤套，从套内取出一点油作样品，滴几滴到滤纸上检查是否有灰尘和杂质。而且，通过和油样比较判定油的等级。,14,检查油的类型,确认油箱上油的类型是否与设备规格上列举的一样。,15,检查滴油器,清洗滴油口，目视检查是否油滴符合规定的数量。,16,检查管子接头是否漏气,用肥皂水检查是否漏气。,日常检查要点,设备基础知识 气动部分,31,五、常用,气动执行元件原理及检查要点,在气动系统中，将压缩空气的压力能转换成机械能的元件被称为,气动执行元件,。,可以实现往复直线运动和往复摆动运动的气动执行元件称为,气缸,；,可以实现连续旋转运动的气动执行元件称为,气马达,。,设备基础知识 气动部分,32,1.,气缸的分类,(,Cylinder types,),1,）按结构分类，其分类如图。,设备基础知识 气动部分,33,2.,典型,气缸的介绍,普通气缸,普通气缸是指缸筒内只有,一个活塞和一个活塞杆,的气缸。,有,单作用和双作用,气缸两种。,设备基础知识 气动部分,34,2.,典型,气缸的介绍,普通气缸,单作用气缸动作原理（,Single-acting cylinders,）,单作用气缸在缸盖,一端气口输入压缩空气,使活塞杆伸出（或缩回）,而另一端靠弹簧、自重或其它外力等使活塞杆恢复到初始位置。,单作用气缸只在动作方向需要压缩空气，故可,节约一半压缩空气,。主要用在,夹紧、退料、阻挡、压入、举起和进给,等操作上。,设备基础知识 气动部分,35,2.,典型,气缸的介绍,普通气缸,双作用气缸动作原理（,Double-acting cylinders,）,设备基础知识 气动部分,36,3,、气缸的结构,1).,结构和部件名称,设备基础知识 气动部分,37,密封件,设备基础知识 气动部分,38,4,、气缸的密封,2).,密封原理,设备基础知识 气动部分,39,4,、气缸的密封,1),、,O,型密封圈的使用,在气缸中，,O,型密封圈用于气缸的活塞部位。,O,型密封圈还必须用于指定尺寸的操作部件中。即使是在紧急情况下，不同尺寸的,O,型密封圈也不能使用。这是因为使用同一厚度且外部直径较小的,O,型密封圈容易发生损坏甚至在受到拉力的时候就会破碎,设备基础知识 气动部分,40,2),、,O,型密封圈使用注意事项,型密封圈的外部直径是否符合管子接头的大小,2.,涂一些油脂保证,O,型密封圈不会掉下来。,气缸检查标准,现象：,1,、漏气、,2,、动作不良,检查提示：,1,、密封老化、,2,、导向套磨损,设备基础知识 气动部分,42,5,、,无杆气缸,无杆气缸主要分为,机械接触式和磁性耦合式,两种。通常将磁性耦合无杆气缸称为,磁性气缸,。,设备基础知识 气动部分,43,6,、,带磁性开关的气缸,(,Cylinder with magnetic limited switch,),磁性开关气缸,是指在气缸的活塞上装有一个永久磁环，而将磁性开关装在气缸的缸筒外侧。,设备基础知识 气动部分,44,7,、,摆动气缸,摆动气缸,是出力轴被限制在某个角度内做往复摆动的一种气缸，又称为,旋转气缸,。,设备基础知识 气动部分,45,8,、,气爪（手指气缸）（,Gripper,）,气爪,能实现各种抓取功能，是现代气动机械手的关键部件。,图,9-15,所示的,气爪的特点,是：,所有的结构都是双作用的，能实现双向抓取，可自动对中，重复精度高；抓取力矩恒定；在气缸两侧可安装非接触式检测开关；有多种安装、连接方式。,设备基础知识 气动部分,46,六、,气动控制元件,在气压传动系统中，气动控制元件是用来,控制和调节,压缩空气的,压力、流量、流动方向和发送信号,的重要元件，利用它们可以组成各种气动控制回路，以保证气动执行元件或机构按设计的程序正常工作。,控制元件,按功能和用途,可分为,方向控制阀、流量控制阀和压力控制阀三,大类。,控制和调节压缩空气压力的元件称为,压力控制阀,。,控制和调节压缩空气流量的元件称为,流量控制阀,。,改变和控制气流流动方向的元件称为,方向控制阀,。,设备基础知识 气动部分,47,六、,气动控制元件,1.,方向控制阀,：,通过对气缸两个接口交替地加压和排气，来控制运动的方向。,设备基础知识 气动部分,48,1,）、,电磁阀,用来控制流体的运动方向，是自动化基础元件。在工厂的液压、气动机械装置中普遍使用。,电磁阀,1,、方向控制阀,DG,工厂常用：,2,位,5,通，,3,位,2,通，,3,位,5,通，,5,位,3,通,设备基础知识 气动部分,49,1,、方向控制阀,2,）、,换向阀,一般有,2,、,3,、,4,或,5,个进气活门，从结构上为绕线轴式控制阀或提升阀。手动操作的电磁阀称为手动转换阀，而用脚操作的电磁阀称为脚踏开关电磁阀。控向阀的功能就是传递和阻止空气。这些阀门常常用于操作气缸、空气离合器、制动器等,设备基础知识 气动部分,50,六、,气动控制元件,2,、,流量控制阀（,Flow control valves,）,节流阀常用的孔口结构。,a,）平板阀,b,）针阀,c,）球阀,设备基础知识 气动部分,51,2,、,流量控制阀（,Flow control valves,）,1).,节流阀,(Throttle valve),设备基础知识 气动部分,52,2,、,流量控制阀（,Flow control valves,）,2),单向节流阀（,One way flow control valve,）：,设备基础知识 气动部分,53,2,、,流量控制阀（,Flow control valves,）,3).,排气节流阀（,Exhaust throttle valve),设备基础知识 气动部分,54,3,、,压力控制阀（,Pressure valves,）,压力控制阀是,用来控制气动系统中压缩空气的