초록 ▼

An apparatus and method for diagnosing rotating equipment commonly used in the factory and process control industry are provided. The apparatus and method are intended for use in assisting a maintenance engineer in the diagnosis of turbines, compressors, fans, blowers and pumps. The preferred embodi

An apparatus and method for diagnosing rotating equipment commonly used in the factory and process control industry are provided. The apparatus and method are intended for use in assisting a maintenance engineer in the diagnosis of turbines, compressors, fans, blowers and pumps. The preferred embodiments are an apparatus and method for diagnosing pumps, with a focus on centrifugal pumps. The apparatus and method are based on the comparison of the current pump signature curves resulting from the acquisition of process variables from sensors monitoring the current condition of the pump and the original or previous pump performance curve from prior monitoring or knowledge of the pump geometry, installation effects and properties of the pumped process liquid. The diagnostic apparatus and method can be applied to any rotating machine, but the apparatus and method for pumps are described herein.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for diagnosing rotating equipment comprising:storing original data for constructing an original performance curve for the rotating equipment, said original data having a recognized recommended operating design regime;acquiring process variables from operating r

[ What is claimed is:] [1.]1. A method for diagnosing rotating equipment comprising:storing original data for constructing an original performance curve for the rotating equipment, said original data having a recognized recommended operating design regime;acquiring process variables from operating rotating equipment;inputting said process variables into a computing device;obtaining a process data point from said process variables, said process data point representing an operating condition of the rotating equipment;comparing said process data point with said original data; anddetermining from said comparison of said process data point with said original data whether said rotating equipment is operating efficiently by determining whether said process data point is outside of said operating design regime.