Constant flow centrifugal pump
    1.
    发明授权
    Constant flow centrifugal pump 失效
    恒流离心泵

    公开(公告)号:US4213735A

    公开(公告)日:1980-07-22

    申请号:US8236

    申请日:1979-02-01

    CPC分类号: F04D15/0038

    摘要: A high pressure centrifugal pump has an impeller assembly including two mating impeller sections which are each constituted by a shroud with fixed geometry blades. The impeller sections are fixedly mounted upon a rotatable shaft and are of a construction which permits the pressure between the impeller sections to engender flexure of the sections away from each other so as to vary the breadth of the impeller assembly. A servo control device is adapted to control the pressure behind the shrouds such that the pump delivers a constant flow at varying back pressures.

    摘要翻译: 高压离心泵具有叶轮组件,其包括两个配合的叶轮部分,每个叶轮部分由具有固定几何叶片的护罩构成。 叶轮部分固定地安装在可旋转的轴上并且具有允许叶轮部分之间的压力使部分的挠曲彼此远离的结构,从而改变叶轮组件的宽度。 伺服控制装置适于控制护罩后面的压力,使得泵在变化的背压下输送恒定流量。

    Compressed gas energy storage system with cooling capability
    2.
    发明授权
    Compressed gas energy storage system with cooling capability 失效
    具有冷却能力的压缩气体储能系统

    公开(公告)号:US5634340A

    公开(公告)日:1997-06-03

    申请号:US324516

    申请日:1994-10-14

    IPC分类号: F02C1/02 F02C6/16 F01K13/02

    摘要: One aspect of the present invention relates to a process of cogeneration utilizing a compressed gas energy storage system which includes a gas storage area, a compression train for pressurizing a gas to be stored in the gas storage area, and an expansion train for depressurizing high pressure gas released from the gas storage area. The process includes operating the compression train during off-peak electricity utilization periods to produce a compressed gas. The compressed gas is stored in the gas storage area and later released during peak electricity utilization periods through the expansion train to generate electricity. This reduces the compressed gas pressure and temperature. The gas can then be used for refrigeration by contacting it with a material to be chilled with that gas. One aspect of this invention involves generating electricity and effecting refrigeration by depressurization of natural gas from high pipeline transmission pressures to lower distribution pressures. A procedure for energy recovery is also disclosed.

    摘要翻译: 本发明的一个方面涉及利用压缩气体能量储存系统的热电联产方法,该压缩气体储能系统包括气体存储区域,用于加压储存在气体存储区域中的气体的压缩系统和用于减压高压的膨胀系统 气体从气体储存区域释放。 该过程包括在非高峰期电力利用期间操作压缩机以产生压缩气体。 压缩气体储存在气体存储区域中,然后通过膨胀列在峰值电力利​​用期间释放,发电。 这降低了压缩气体的压力和温度。 然后可以将气体与用该气体冷却的材料接触,将其用于制冷。 本发明的一个方面涉及通过将天然气从高管道输送压力减压到较低的分配压力来发电和实现制冷。 还公开了能量回收的方法。

    Power conserving inducer
    3.
    发明授权
    Power conserving inducer 失效
    省电诱导剂

    公开(公告)号:US4149825A

    公开(公告)日:1979-04-17

    申请号:US849554

    申请日:1977-11-08

    IPC分类号: F04D15/00 F04D29/22

    CPC分类号: F04D15/0011 F04D29/2277

    摘要: An axial inducer, which charges the inlet of a centrifugal impeller has a bypass loop connecting its inlet and outlet. A valve member for controlling bypass flow is positioned in the bypass loop. At low flows, the bypass loop permits the inducer to run closer to design flow conditions than would otherwise be possible and, consequently, generate less pressure rise, consume minimum power, and cause minimal heating of the fluid being pumped. An extension of the bypass valve member functions to restrict the centrifugal pump discharge area when the valve member is positioned to bypass flow to reduce recirculating flow in the centrifugal impeller and increase its efficiency.

    摘要翻译: 为离心式叶轮的入口充电的轴向导流器具有连接其入口和出口的旁路回路。 用于控制旁路流量的阀构件位于旁路回路中。 在低流量时,旁路回路允许导流器比否则可能更靠近设计流量条件运行,因此产生更少的压力上升,消耗最小功率,并且引起被泵送的流体的最小加热。 旁通阀构件的延伸用于限制离心泵排出区域,当阀构件定位成旁路流动以减少离心式叶轮中的再循环流量并提高其效率。