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公开(公告)号:US20160305447A1
公开(公告)日:2016-10-20
申请号:US15101460
申请日:2014-12-03
申请人: Andreas DREISS , Rehan FAROOQI , Stefano TOSIN , Jens FRIEDRICHS , FLOWSERVE MANAGEMENT COMPANY
发明人: Andreas Dreiss , Rehan Farooqi , Stefano Tosin , Jens Friedrichs
CPC分类号: F04D29/447 , F04D1/003 , F04D13/06 , F04D29/2277 , F04D29/426 , F04D29/669 , H02K7/14 , H02K16/005
摘要: A centrifugal pump with a rotating impeller and a rotating diffuser. The diffuser may be rotated with a controlled speed to broaden the operational range of the pump. Such control may be done independently of the rotational speed of the impeller to tailor pump operation to a particular NPSH, efficiency, fluid flow or related requirement. In one preferred form, the impeller and diffuser are made to counter-rotate relative to one another, while the independent rotational speed of each may be provided by one or more motors, as well as a variable-speed transmission coupled to such motor or motors. Such a pump is optimized for specific speed operating ranges beneath those associated with axial flow pump configurations.
摘要翻译: 具有旋转叶轮和旋转扩散器的离心泵。 扩散器可以以受控的速度旋转以扩大泵的操作范围。 这样的控制可以独立于叶轮的旋转速度进行,以将泵操作调整到特定的NPSH,效率,流体流量或相关要求。 在一个优选形式中,叶轮和扩散器被制成相对于彼此反向旋转,而每个的独立转速可以由一个或多个电动机以及耦合到这种电动机或电动机的变速传动装置 。 这种泵针对与轴流泵配置相关联的特定速度操作范围进行了优化。