PUMP PULSATION DISCHARGE DAMPENER WITH CURVED INTERNAL BAFFLE AND PRESSURE DROP FEATURE CREATING TWO INTERNAL VOLUMES
    2.
    发明申请
    PUMP PULSATION DISCHARGE DAMPENER WITH CURVED INTERNAL BAFFLE AND PRESSURE DROP FEATURE CREATING TWO INTERNAL VOLUMES 有权
    具有弯曲内部压力和压力下降功能的PUMP脉冲排放阻尼器创建两个内部体积

    公开(公告)号:US20130008512A1

    公开(公告)日:2013-01-10

    申请号:US13544734

    申请日:2012-07-09

    Abstract: A pulsation control device coupling a reciprocating pump with either suction or discharge piping and having a generally spherical or cylindrical interior chamber includes a curved baffle with a pressure drop device (e.g., a choke) there through separating the interior chamber into two volumes and forcing fluid flow through the pressure drop device. The effective fluid passage provided by the pressure drop device is smaller than the fluid passage for one or both of the inlet to and/or the outlet from the interior chamber. Fluid entering the pulsation control device reacts with fluid contained within the volume thereof on both sides of the baffle. The baffle attenuates pressure pulses within fluid passing through the interior chamber in response to operation of the reciprocating pump, and in particular improves acoustic pulsation energy reduction. The pressure drop device dampens high frequency pulsation magnitudes of pressure pulses within fluid passing through the interior chamber in response to operation of the reciprocating pump.

    Abstract translation: 将往复泵与抽吸或排放管道联接并且具有大致球形或圆柱形的内部室的脉动控制装置包括弯曲的挡板,其中具有压降装置(例如,扼流圈),通过将内部室分离成两个体积并迫使流体 流过压降装置。 由压降装置提供的有效流体通道比来自内部室的入口和/或出口中的一个或两个的流体通道小。 进入脉动控制装置的流体与挡板两侧的容积内容纳的液体反应。 响应于往复泵的操作,挡板衰减通过内部腔室的流体内的压力脉冲,并且特别地改善声波脉动能量减少。 压降装置响应于往复泵的操作而抑制通过内室的流体内的压力脉冲的高频脉动大小。

    Leak arresting valve
    3.
    发明授权

    公开(公告)号:US06634375B2

    公开(公告)日:2003-10-21

    申请号:US09982220

    申请日:2001-10-17

    Abstract: A flow control valve is disclosed wherein a housing defines a flow chamber with an inlet and an outlet. Disposed within the flow chamber is a poppet assembly comprising an inner poppet and an outer poppet. A first spring is selected to bias the outer poppet to seal closed the inlet below a predetermined fluid flow rate. Above the fluid flow rate, the force of the fluid against the outer poppet compresses the spring, breaking the seal and allowing fluid to flow into the fluid flow chamber. Inside the outer poppet is an inner poppet which extends from the outer poppet. A second spring biases the inner poppet predominantly within the outer poppet, but an increased pressure inside the outer poppet collapses the second spring and extends the inner poppet in a fully extended position. Fully extended the inner poppet shuts the outlet of the fluid chamber thereby arresting the flow. In operation, the first spring shuts the valve below a predetermined flow rate guaranteeing zero flow until a minimum flow rate is present. Furthermore, if a leak occurs downstream (beyond the outlet) or the flow rate is above a predetermined maximum flow rate the second spring is collapsed by an upstream/downstream pressure differential causing the inner poppet to seal the outlet. Thus, the valve operates only between a minimum and maximum flow rate and seals in the event of a downstream leak.

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