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US 7,765,873 B2Granted
Pressure diagnostic for rotary equipment
AssigneeRosemount Inc.
InventorAndrew Jurli Klosinski
Life of this patent
Estimating the term…
Abstract
A system comprises a rotary machine, a sensor and a processor. The rotary machine has a component that operates on a fluid. The sensor senses pressure in the fluid. The processor generates a diagnostic indicative of wear on the component, based on process noise on the pressure.
Claims25
A system comprising:
- a rotary apparatus having a component for operating on a working fluid, the component comprising a turbine, a compressor, a fan, a turbofan or a blower;
- a sensor that senses a working fluid pressure of the rotary apparatus and monitors process noise on the working fluid pressure;
- and
- a processor that monitors process noise on the working fluid pressure and generates a wear diagnostic indicative of wear on the component as a function of the process pressure noise;
- wherein the wear diagnostic is correlated with a physical change in the component of the rotary apparatus;
- and
- wherein the physical change is due to damaging interaction with the working fluid.
4 more elements
A method comprising:
- sensing a working fluid pressure of a rotary apparatus having a component operating on the working fluid, the component comprising a turbine, a compressor, a fan, a turbofan or a blower;
- monitoring process noise on the working fluid pressure;
- and
- generating a wear diagnostic as a function of the process noise, such that the wear diagnostic is correlated with a physical change in the component of the rotary apparatus, wherein the physical change is due to damaging interaction with the working fluid.
1 more element
A diagnostic pressure transmitter comprising:
- a sensor that senses a working fluid pressure of a rotary apparatus having a rotary component operating on the working fluid, the rotary component comprising a blade or vane of a turbine, a compressor, a fan, a turbofan or a blower;
- a processor that monitors process noise on the working fluid pressure, generates a wear diagnostic as a function of the process noise, and generates a wear indicator as a function of a change in the wear diagnostic;
- and
- an interface for transmitting the wear diagnostic and the wear indicator to a monitoring system;
- wherein the wear diagnostic is correlated with a physical change in the rotary component of the rotary apparatus;
- wherein the physical change is due to damaging interaction with the working fluid;
- and
- wherein the wear indicator is indicative of abrasion, erosion, pitting, corrosion, deformation or liberation of an airfoil section of the blade or vane.
5 more elements
Dependencies are inferred from the claim text.