Machine protection system for rotating equipment and method
First Claim
1. A method of operating a machine protection system for rotating equipment, the method comprising:
- (a) sensing vibration amplitude and phase of the rotating equipment;
(b) controlling operation of the rotating equipment based on the vibration amplitude and phase;
(c) determining the baseline vibration amplitude and phase data using a rolling average and variance and storing baseline vibration amplitude and phase data in a unit circle; and
(d) comparing the sensed vibration amplitude and phase with the baseline vibration amplitude and phase data, wherein step (c) is practiced by storing separate baseline vibration amplitude and phase data according to an operating mode of the rotating equipment, and wherein step (d) comprises outputting a signal based on the comparison, step (b) being practiced by controlling the operation of the rotating equipment based on the signal output in step (d).
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Accused Products
Abstract
A machine protection system and method for rotating equipment introduces new alarming features and makes use of full proximity probe sensor information, including amplitude and phase. Baseline vibration amplitude and phase data is estimated and tracked according to operating modes of the rotating equipment. Baseline vibration and phase data can be determined using a rolling average and variance and stored in a unit circle or tracked using short term average and long term average baselines. The sensed vibration amplitude and phase is compared with the baseline vibration amplitude and phase data. Operation of the rotating equipment can be controlled based on the vibration amplitude and phase.
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Citations
7 Claims
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1. A method of operating a machine protection system for rotating equipment, the method comprising:
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(a) sensing vibration amplitude and phase of the rotating equipment;
(b) controlling operation of the rotating equipment based on the vibration amplitude and phase;
(c) determining the baseline vibration amplitude and phase data using a rolling average and variance and storing baseline vibration amplitude and phase data in a unit circle; and
(d) comparing the sensed vibration amplitude and phase with the baseline vibration amplitude and phase data, wherein step (c) is practiced by storing separate baseline vibration amplitude and phase data according to an operating mode of the rotating equipment, and wherein step (d) comprises outputting a signal based on the comparison, step (b) being practiced by controlling the operation of the rotating equipment based on the signal output in step (d). - View Dependent Claims (2, 3)
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4. A method of operating a machine protection system for rotating equipment, the method comprising:
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(a) sensing vibration amplitude and phase of the rotating equipment;
(b) controlling operation of the rotating equipment based on the vibration amplitude and phase;
(c) storing baseline vibration amplitude and phase data in a unit circle;
(d) comparing the sensed vibration amplitude and phase with the baseline vibration amplitude and phase data, wherein step (c) is practiced by storing separate baseline vibration amplitude and phase data according to an operating mode of the rotating equipment, and wherein step (d) comprises outputting a signal based on the comparison, step (b) being practiced by controlling the operation of the rotating equipment based on the signal output in step (d); and
(e) tracking the baseline amplitude and phase data using short term average and long term average baselines. - View Dependent Claims (5, 6)
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7. A method of operating a machine protection system for rotating equipment, the method comprising:
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(a) sensing vibration amplitude and phase of the rotating equipment;
(b) controlling operation of the rotating equipment based on the vibration amplitude and phase;
(c) storing baseline vibration amplitude and phase data in a unit circle by manually entering the baseline amplitude and phase data; and
(d) comparing the sensed vibration amplitude and phase with the baseline vibration amplitude and phase data, wherein step (c) is practiced by storing separate baseline vibration amplitude and phase data according to an operating mode of the rotating equipment, and wherein step (d) comprises outputting a signal based on the comparison, step (b) being practiced by controlling the operation of the rotating equipment based on the signal output in step (d), and wherein after collecting a predefined number of data values, the method comprises updating the manually entered baseline amplitude and phase data based on the predefined number of data values.
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Specification