威格士VICKERS齿轮泵中国*下载中心
VICKERS威格士齿轮泵也叫正排量装置，即像一个缸筒内的活塞，当一个齿进入另一个齿的流体空间时，液体就被机械性地挤排出来。因为液体是不可压缩的，所以液体和齿就不能在同一时间占据同一空间，这样，液体就被排除了。由于齿的不断啮合，这一现象就连续在发生，因而也就在泵的出口提供了一个连续排除量，泵每转一转，排出的量是一样的。随着驱动轴的不间断地旋转，泵也就不间断地排出流体。泵的流量直接与泵的转速有关。
实际上，在泵内有很少量的流体损失，这使泵的运行效率不能达到100%，因为这些流体被用来润滑轴承及齿轮两侧，而泵体也绝不可能无间隙配合，故不能使流体100%地从出口排出，所以少量的流体损失是必然的。然而泵还是可以良好地运行，对大多数挤出物料来说，仍可以达到93%～98%的效率。
对于粘度或密度在工艺中有变化的流体，这种泵不会受到太多影响。如果有一个阻尼器，比如在排出口侧放一个滤网或一个限制器，泵则会推动流体通过它们。如果这个阻尼器在工作中变化，亦即如果滤网变脏、堵塞了，或限制器的背压升高了，则泵仍将保持恒定的流量，直至达到装置中zui弱的部件的机械极限（通常装有一个扭矩限制器）。
对于一台泵的转速，实际上是有限制的，这主要取决于工艺流体，如果传送的是油类，泵则能以很高的速度转动，但当流体是一种高粘度的聚合物熔体时，这种限制就会大幅度降低。
威格士泵新型号： 威格士泵 老型号：
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