液压系统冲洗,可以按如下步骤进行: 在未安装敏感元件(如伺服阀等)之前,将管道及对污染物不敏感元件先装配起来,并将管子端部密封严实。 用跨接线代替敏感元件,将液压回路连接起来,并充液加压,进行冲洗,达到规定的清洁度为止。 选择的冲洗回路应跳过敏感元件,并尽可能减少流动阻力。冲洗时应避免脏油通过已经冲洗干净的管道,对于较复杂的系统,可选择回路先从支路冲洗到主管道,然后将支路与主管道隔开,再冲洗主管道,在冲洗回路的回油路上,装设滤油器或滤网,冲洗初期由于杂质较多,一般采用80目滤网,冲洗后期改用150目以上的滤网。 为了提高冲洗效果,在冲洗过程中的液压泵以间歇运动为佳,其间歇时间一般为10~30分钟,可在这一间歇时间内检测冲洗效果。在冲洗过程中,为了有利于管内壁上的附着物脱落,可以用木棒或橡皮锤等非金属锤轻轻敲击管道,可连续或间歇地敲击。 冲洗介质的选用通常是实际使用的液压油或试车油。避免使用酒精、蒸气等,以防腐蚀液压元件、管道、油箱及密封件等。 冲洗液的用量一般以油箱工作容量地60%~70%为宜,冲洗时间不要太长,一般为2~4小时,在特殊情况下不**过10小时。冲洗效果以回路过滤网上无污染杂质为标准。冲洗后的液压油需要经过质量检测才能确定能否继续使用。 冲洗过程中还应该注意: (1) 油箱要封闭,减少现场空气中颗粒进入油箱的机会; (2) 相油箱中加入冲洗油时应使用带过滤器的加油小车,以滤除桶装油中的污染物; (3) 更换滤芯时暂停冲洗泵,注意不要带入杂质; (4) 对排空和排污要定期进行,以确保系统充满,并及时排出气体和污染物。 (5) 在冲洗的前期,油中水分蒸发很重要,在冲洗油箱上应有蒸汽逸出的窗口。 (6) 冲洗合格后在抽出冲洗油、管线使用前要注意保护,以免污染物进入系统。 20V2A 叶片泵 20V2A-1A22R 20V2A-1B22R 20V2A-1C22R 20V2A-1D22R 20V3A 20V3A-1A22R 20V3A-1B22R 20V3A-1C22R 20V3A-1D22R 20V4A 20V4A-1A22R 20V4A-1B22R 20V4A-1C22R 20V4A-1D22R 20V5A 20V5A-1A22R 20V5A-1B22R 20V5A-1C22R 20V5A-1D22R 20V6A 20V6A-1A22R 20V6A-1B22R 20V6A-1C22R 20V6A-1D22R 20V7A 20V7A-1A22R 20V7A-1B22R 20V7A-1C22R 20V7A-1D22R 20V8A 20V8A-1A22R 20V8A-1B22R 20V8A-1C22R 20V8A-1D22R 20V9A 20V9A-1A22R 20V9A-1B22R 20V9A-1C22R 20V9A-1D22R 20V10A 20V10A-1A22R 20V10A-1B22R 20V10A-1C22R 20V10A-1D22R 20V11A 20V11A-1A22R 20V11A-1B22R 20V11A-1C22R 20V11A-1D22R 20V12A 20V12A-1A22R 20V12A-1B22R 20V12A-1C22R 20V12A-1D22R 20V14A 20V14A-1A22R 20V14A-1B22R 20V14A-1C22R 20V14A-1D22R 25V10A 25V10A-1A22R 25V10A-1B22R 25V10A-1C22R 25V10A-1D22R 25V12A 25V12A-1A22R 25V12A-1B22R 25V12A-1C22R 25V12A-1D22R 25V14A 25V14A-1A22R 25V14A-1B22R 25V14A-1C22R 25V14A-1D22R 25V15A 25V15A-1A22R 25V15A-1B22R 25V15A-1C22R 25V15A-1D22R 25V17A 25V17A-1A22R 25V17A-1B22R 25V17A-1C22R 25V17A-1D22R 25V19A 25V19A-1A22R 25V19A-1B22R 25V19A-1C22R 25V19A-1D22R 25V21A 25V21A-1A22R 25V21A-1B22R 25V21A-1C22R 25V21A-1D22R 35V21A 35V21A-1A22R 35V21A-1B22R 35V21A-1C22R 35V21A-1D22R 35V25A 35V25A-1A22R 35V25A-1B22R 35V25A-1C22R 35V25A-1D22R 35V30A 35V30A-1A22R 35V30A-1B22R 35V30A-1C22R 35V30A-1D22R 35V32A 35V32A-1A22R 35V32A-1B22R 35V32A-1C22R 35V32A-1D22R 35V35A 35V35A-1A22R 35V35A-1B22R 35V35A-1C22R 35V35A-1D22R 35V38A 35V38A-1A22R 35V38A-1B22R 35V38A-1C22R 35V38A-1D22R 45V42A 45V42A-1A22R 45V42A-1B22R 45V42A-1C22R 45V42A-1D22R 45V45A 45V45A-1A22R 45V45A-1B22R 45V45A-1C22R 45V45A-1D22R 45V50A 45V50A-1A22R 45V50A-1B22R 45V50A-1C22R 45V50A-1D22R 45V57A 45V57A-1A22R 45V57A-1B22R 45V57A-1C22R 45V57A-1D22R 45V60A 45V60A-1A22R 45V60A-1B22R 45V60A-1C22R 45V60A-1D22R 45V66A 45V66A-1A22R 45V66A-1B22R 45V66A-1C22R 45V66A-1D22R 45V76A 45V76A-1A22R 45V76A-1B22R 45V76A-1C22R 45V76A-1D22R 2520V双联 3525V双联 20V2A-86A22R 20V2A-86B22R 20V2A-86C22R 20V2A-86D22R 4535V双联 20V3A-86A22R 20V3A-86B22R 20V3A-86C22R 20V3A-86D22R 20V4A-86A22R 20V4A-86B22R 20V4A-86C22R 20V4A-86D22R 20V5A-86A22R 20V5A-86B22R 20V5A-86C22R 20V5A-86D22R 20V6A-86A22R 20V6A-86B22R 20V6A-86C22R 20V6A-86D22R 20V7A-86A22R 20V7A-86B22R 20V7A-86C22R 20V7A-86D22R 20V8A-86A22R 20V8A-86B22R 20V8A-86C22R 20V8A-86D22R 20V9A-86A22R 20V9A-86B22R 20V9A-86C22R 20V9A-86D22R 20V10A-86A22R 20V10A-86B22R 20V10A-86C22R 20V10A-86D22R 20V11A-86A22R 20V11A-86B22R 20V11A-86C22R 20V11A-86D22R 20V12A-86A22R 20V12A-86B22R 20V12A-86C22R 20V12A-86D22R 20V14A-86A22R 20V14A-86B22R 20V14A-86C22R 20V14A-86D22R 25V10A-86A22R 25V10A-86B22R 25V10A-86C22R 25V10A-86D22R 25V12A-86A22R 25V12A-86B22R 25V12A-86C22R 25V12A-86D22R 25V14A-86A22R 25V14A-86B22R 25V14A-86C22R 25V14A-86D22R 25V15A-86A22R 25V15A-86B22R 25V15A-86C22R 25V15A-86D22R 25V17A-86A22R 25V17A-86B22R 25V17A-86C22R 25V17A-86D22R 25V19A-86A22R 25V19A-86B22R 25V19A-86C22R 25V19A-86D22R 25V21A-86A22R 25V21A-86B22R 25V21A-86C22R 25V21A-86D22R 35V21A-86A22R 35V21A-86B22R 35V21A-86C22R 35V21A-86D22R 35V25A-86A22R 35V25A-86B22R 35V25A-86C22R 35V25A-86D22R 35V30A-86A22R 35V30A-86B22R 35V30A-86C22R 35V30A-86D22R 35V32A-86A22R 35V32A-86B22R 35V32A-86C22R 35V32A-86D22R 35V35A-86A22R 35V35A-86B22R 35V35A-86C22R 35V35A-86D22R 35V38A-86A22R 35V38A-86B22R 35V38A-86C22R 35V38A-86D22R 45V42A-86A22R 45V42A-86B22R 45V42A-86C22R 45V42A-86D22R 45V45A-86A22R 45V45A-86B22R 45V45A-86C22R 45V45A-86D22R 45V50A-86A22R 45V50A-86B22R 45V50A-86C22R 45V50A-86D22R 45V57A-86A22R 45V57A-86B22R 45V57A-86C22R 45V57A-86D22R 45V60A-86A22R 45V60A-86B22R 45V60A-86C22R 45V60A-86D22R 45V66A-86A22R 45V66A-86B22R 45V66A-86C22R 45V66A-86D22R 45V76A-86A22R 45V76A-86B22R 45V76A-86C22R 45V76A-86D22R