Method for obtaining temperature of fluid fed from centrifugal pump
    13.
    发明专利
    Method for obtaining temperature of fluid fed from centrifugal pump 有权
    从离心泵获得流体温度的方法

    公开(公告)号:JP2009002345A

    公开(公告)日:2009-01-08

    申请号:JP2008161816

    申请日:2008-06-20

    CPC classification number: F04D15/0088 H02P29/66

    Abstract: PROBLEM TO BE SOLVED: To provide a low-cost method for obtaining temperature of fed fluid from a pump without using a temperature sensor which can be easily handled. SOLUTION: The method for obtaining temperature of the fed fluid from a centrifugal pump that is driven by a permanent magnet motor of which rotor rotates in a container filled with fluid. Rotor temperature Tm is estimated based on an electric variable of the permanent magnet motor, and temperature of the fed fluid is determined based on the rotor temperature Tm. In the method, the temperature of the fed fluid from a circulation pump driven by a permanent magnet synchronism motor can be measured without using a sensor. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于从不使用能够容易地处理的温度传感器获得来自泵的供给流体的温度的低成本方法。 解决方案:用于从由离心泵获得的进料流体的温度的方法,该离心泵由转子在充满流体的容器中旋转的永磁电动机驱动。 基于永磁电动机的电变量来推定转子温度Tm,基于转子温度Tm来确定供给流体的温度。 在该方法中,可以在不使用传感器的情况下测量来自由永磁同步电动机驱动的循环泵的供给流体的温度。 版权所有(C)2009,JPO&INPIT

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