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<h1 class="h1">柴油发电机水泵拆装、清洗与检验及安装办法</span></h1>
<div class="text">发布来源：重康电力（深圳）有限公司　　发布日期: 2024-07-31　　访问量:2515</div>
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<p>康明斯柴油发电机上水泵的易见失效形式有叶轮轴向松旷、轴与轴承磨损、水封漏水以及泵壳和叶轮破裂等。总装与解体的程序刚好相反。安装时，一定要旋紧皮带盘与水泵轴的紧固螺母，其功率通常为5~10kgf·m。装配好后，水泵应转动灵活，而且应没有任何渗漏现状。</p><p>水泵密封因腐蚀导致的失效为数不少，而构成腐蚀的因由错综复杂。水泵密封常遇到的腐蚀形态及需考虑的影响条件有很多种。</p><p>水泵密封件因发烫而导致的失效，即为热磨损失效，较易发的热磨耗失效有端面热变形、热裂、疱疤、炭化，弹性元件的失弹，橡胶件的老化、永久变形、龟裂等。</p><p>③ 拆下叶轮固定螺栓及轴承锁环，再朝叶轮中心向前压出水泵轴，取下叶轮（如果没有压床，也可以用一个比水泵轴外径小的铜棒或铁棒垫上软质金属垫圈用手锤打出，但这时候要注意：用力要适当）。</p><p>泵壳不能有严重裂纹，其裂纹长度不能超过30mm，而且不能延伸到轴承座孔的边缘。若符合上述因素，可用黄铜合金焊条焊修。焊修前还要对泵壳进行预热，以防焊接后变形。若不符合上述要素，就应更换泵壳。叶轮只允许事故一片，损坏两片以上的也必须更替。</p><p>水泵轴与叶轮孔是过盈配合，若叶轮与轴配合松旷，应进行修理，其检修工艺通常是用挂锡的举措加大轴的尺寸。其详细技术要求是：叶轮装在轴上后，叶轮端面应高出水泵轴0.1~0.5mm。</p><p>柴油发电机运行时，水泵皮带盘无法有严重的摇摆情形。如果有上述情形存在，起因可能有两个：一是轴承松旷，二是皮带盘和锥形套、半圆键磨耗。水泵轴与轴承损伤，轴向移动不能超过0.30mm，径向移动无法超过0.05mm，否则应替换新轴承。如果带轮的锥形套和半圆键磨损，应更替。</p><p>如胶木垫磨损起槽、弹簧弹力过软、橡胶套胀大破损等均应更替新件。如胶木垫磨损不严重，可以调面或磨平后再用。</p><p>（5）水泵后盖为PPS塑料材质，螺栓引荐紧固扭力：按孔位5→1的顺序用9N.m，请务必操作功率扳手。</p><p>警告：水泵安装面自带密封件，禁止抹胶(包括节温器， 机油散热器对接管口)。因为涂胶胶水会加载自带密封垫老化，增加安装面渗水风险。涂胶在安装拧紧时变形溢出进入水道，在运行流程中脱落并随冷却水流动，造成管道堵塞或卡死节温器，造成水泵提前失效。</p><p>在柴发机组累计工作550h时，除对其进行一级技术保养项目外，还需要察看喷油咀、喷油器、调整气门间隙和喷油提前角；检查进、排气门的密封状况；检查水泵漏水情况；察看气缸套封水圈的封水状况；严查各种散热器；紧固柴油发电机和发电机的零部件；清洗管道。</p></div><a href="http://www.fdjhs.cn/" target="_blank">http://www.fdjhs.cn</a>
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