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    METHOD AND APPARATUS IN CONNECTION WITH A SCREW COMPRESSOR
    1.
    发明公开
    METHOD AND APPARATUS IN CONNECTION WITH A SCREW COMPRESSOR 有权
    VERFAHREN VORRICHTUNG在VERBINDUNG MIT EINEM SCHRAUBENVERDICHTER

    公开(公告)号：EP3118458A1

    公开(公告)日：2017-01-18

    申请号：EP15176847.0

    申请日：2015-07-15

    Applicant: ABB Technology Oy

    Inventor： Kosonen, Antti ,  Ahola, Jero

    IPC: F04C28/08 ,  F04C18/16

    CPC classification number: F04C28/28 ,  F04C18/16 ,  F04C28/08 ,  F04C29/0085 ,  F04C2270/051 ,  F04C2270/18 ,  F04C2270/48 ,  F04C2270/80 ,  G01R21/133

    Abstract: A method of determining operation characteristics of a screw compressor drive and a screw compressor drive, the method comprising pressurising a pressure vessel of the screw compressor with a variable rotational speed of the screw compressor, the rotational speed of the screw compressor having a speed profile in which the rotational speed is changed stepwise such that between stepwise changes the rotational speed of the screw compressor is kept substantially constant for a time period, repeating the speed profile until the pressure of the pressure vessel reaches a set pressure value, determining pressure of the pressure vessel, power consumption of the screw compressor drive and mass flow rate during the pressurising when the rotational speed of the screw compressor is kept substantially constant, calculating energy efficiency of the screw compressor drive as a function of pressure of the pressure vessel and rotational speed of the screw compressor on the on the basis of the determined pressure of the pressure vessel and power consumption of the screw compressor drive.

    Abstract translation: 一种确定螺杆式压缩机驱动装置和螺杆式压缩机驱动装置的运行特性的方法，该方法包括以螺杆压缩机的可变转速对螺杆式压缩机的压力容器进行加压，螺杆式压缩机的转速为 旋转速度逐步变化，使得螺杆式压缩机的转速在逐步变化之间保持基本恒定一段时间，重复速度分布，直到压力容器的压力达到设定压力值，确定压力的压力 容器，螺杆式压缩机驱动器的功率消耗和当螺杆压缩机的转速保持基本恒定时在加压期间的质量流量，计算作为压力容器的压力和转速的函数的螺杆式压缩机驱动器的能量效率 螺杆式压缩机在确定的基础上 压力容器的压力和螺杆式压缩机驱动器的功率消耗。

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