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    • 5. 发明授权
    • Group of full-circumferential-flow pumps and method of manufacturing the
same
    • 全圆周流泵组及其制造方法
    • US5797731A
    • 1998-08-25
    • US607264
    • 1996-02-21
    • Makoto KobayashiMasakazu YamamotoYoshio MiyakeKoji IsemotoKeita UwaiYoshiaki Miyazaki
    • Makoto KobayashiMasakazu YamamotoYoshio MiyakeKoji IsemotoKeita UwaiYoshiaki Miyazaki
    • F04D13/14F04D15/00F04D29/62F04B17/03
    • F04D13/14F04D15/0066F04D29/628F05B2230/601Y10T29/49243
    • A group of full-circumferential-flow pumps has a group of motors each comprising a main shaft, a rotor mounted on the main shaft, a stator disposed around the rotor, a cylindrical outer motor frame fitted over the stator, and an outer cylinder disposed around the cylindrical outer motor frame with an annular space defined therebetween, a group of pump parts oriented in opposite directions to meet different directions in which the main shafts of the motors rotate, and a group of frequency converters for energizing the motors to rotate at high speeds. In order to meet rating requirements including flow rates and pump heads, the group of motors, the group of pump parts, and the group of frequency converters are combined to provide a group of single-suction-type full-circumferential-flow pumps that are powered by a commercial electric power supply and belong to a first type for applications to pump a fluid at a small rate under a low pump head, and a group of single-suction-type full-circumferential-flow pumps that are rotatable at high speeds and belong to a second type for applications to pump a fluid at a small rate under a high pump head.
    • 一组全圆周流泵具有一组电动机,每个电动机包括主轴,安装在主轴上的转子,设置在转子周围的定子,安装在定子上的圆柱形外部电动机框架和设置在外部圆筒状外筒上的外筒 围绕圆筒形的外部马达框架具有限定在其间的环形空间,一组泵组件以相反方向定向,以满足电动机主轴旋转的不同方向,以及一组变频器,用于激励电动机高速旋转 速度。 为了满足流量和泵头的等级要求,组合电机,泵组和变频器组组合提供一组单吸式全圆周流泵, 由商用电源供电,属于第一种,用于在低泵头下以较小的速率泵送流体的应用,以及可高速旋转的一组单吸式全周向流量泵 并且属于用于在高泵头下以较小速率泵送流体的应用的第二类型。