公开(公告)号：US20170016447A1

公开(公告)日：2017-01-19

申请号：US15210679

申请日：2016-07-14

Applicant: ABB Technology OY

Inventor： Antti Kosonen ,  Jero Ahola

IPC: F04C28/28 ,  G01R21/133 ,  F04C29/00 ,  F04C18/16 ,  F04C28/08

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

Abstract: 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: 具有螺杆式压缩机的可变转速的螺杆式压缩机，具有速度变化的螺杆式压缩机的旋转速度，其中转速逐步改变，使得螺旋式压缩机的转速逐步改变，对于 时间段，直到压力容器的压力达到设定压力值，确定压力容器的压力，螺杆式压缩机驱动的功率消耗和加压期间的质量流量，当螺杆式压缩机的转速为 基于压力容器的确定的压力和螺杆式压缩机驱动器的功率消耗，基于压力容器的压力和螺杆式压缩机的转速来计算螺杆式压缩机驱动器的能量效率。