METHOD OF EVALUATING AN OPERATING STATE OF A FLOW MACHINE AS WELL AS FLOW MACHINE

摘要

A method of evaluating an operating state of a flow machine includes measuring, in the operating state of the flow machine, a first force component of a bearing force acting on a rotor axle along a first direction using a first force sensor, the first direction lying perpendicularly to the axial direction, measuring a second force component of the bearing force in a second direction using a second force sensor, the second direction lying perpendicularly to the axial direction and being simultaneously perpendicular to the first direction, a resulting force being formed from the first force component and the second force component, preparing a frequency spectrum of the resulting force using a frequency analysis, comparing the frequency spectrum with a reference spectrum, and evaluating an operating state at a predefined operating state of the flow machine.

主权项

1. A method of evaluating an operating state of a flow machine, the flow machine including an impeller arranged at a rotor axle and the rotor axle with the impeller is supported in a shaft bearing rotatable about an axial direction in a machine housing of the flow machine, the method comprising:
measuring, in the operating state of the flow machine, a first force component of a bearing force acting on the rotor axle along a first direction using a first force sensor, the first direction lying perpendicularly to the axial direction; measuring a second force component of the bearing force in a second direction using a second force sensor, the second direction lying perpendicularly to the axial direction and being simultaneously perpendicular to the first direction, a resulting force being formed from the first force component and the second force component; preparing a frequency spectrum of the resulting force using a frequency analysis; comparing the frequency spectrum with a reference spectrum; and evaluating an operating state at a predefined operating state of the flow machine.