Detection of anomalous movement in a reciprocating device

• US 8,297,123 B2
• Filed: 07/30/2009
• Issued: 10/30/2012
• Est. Priority Date: 07/30/2009
• Status: Active Grant

• Current Assignee: Baker Hughes Holdings LLC (Baker Hughes Company)
• Original Assignee: General Electric Company
• Inventors: Howard, Brian F., Hala, Roger A., Plaisance, Stephen Edward, Kitchens, L John Jr.
• Primary Examiner(s): Kwok, Helen C.
• Application Number:
  US12/512,402
• Publication Number:
  US 20110023613A1
• Time in Patent Office: 1,188 Days
• Field of Search: 735/70, 73583-584, 73659-660, 73649-651, 731/140.7, 731/147.7, 702/33, 702/56, 702/74, 702/126, 702189-190
• US Class Current: 73/659
• CPC Class Codes: G01H 11/00 Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties

Abstract

Embodiments of the invention relate generally to the detection of anomalous or aberrant movement of a reciprocating element in a reciprocating device and, more particularly, to the analysis of one or more components of a vibration signal produced by such anomalous or aberrant movement of the reciprocating element. One embodiment of the invention provides a system for identifying an anomalous movement of a reciprocating element in a reciprocating device, the system comprising: at least one sensing device for sensing a vibration signal of the reciprocating element; a processing apparatus for separating the vibration signal into a first component having a first frequency range and a second component having a second frequency range different than the first frequency range; and an analysis device for analyzing, displaying, or both, at least one of the first and the second components of the vibration signal.

Claims

1. A system for identifying an anomalous movement of a reciprocating element in a reciprocating device, the system comprising:

at least one sensing device for sensing a vibration signal of the reciprocating element;

a processing apparatus for separating the vibration signal into a first component having a first frequency range and a second component having a second frequency range different than the first frequency range; and

a device for at least one of analyzing or displaying at least one of the first or the second components of the vibration signal,

wherein the vibration signal includes positional data of the reciprocating element along a first axis and a second axis substantially perpendicular to the first axis.

2. The system of claim 1, wherein the first frequency range is lower than the second frequency range.

3. The system of claim 1, wherein the first frequency range and the second frequency range are substantially non-overlapping.

4. The system of claim 1, wherein the device for at least one of analyzing or displaying is selected from a group consisting of:

a printing device, an electronic display, and a computing device having at least one of hardware or software for analyzing the vibration signal.

5. The system of claim 1, wherein the processing apparatus is capable of separating the vibration signal into at least three components.

6. The system of claim 5, wherein each of the at least three components has a frequency range different than the other of the at least three components.

7. The system of claim 1, wherein the positional data of the reciprocating element along the first axis is sensed using a first sensing device and the positional data of the reciprocating element along the second axis is sensed using a second sensing device.

8. The system of claim 1, wherein the reciprocating device is selected from a group consisting of:

an engine, a pump, and a compressor.

15. The system of claim 6, wherein the at least three frequency ranges are substantially non-overlapping.

9. A system for identifying an anomalous movement of a reciprocating element in a reciprocating device, the system comprising:

a first sensing device for sensing a first component of a vibration signal of the reciprocating element, the first component having a first frequency range;

a second sensing device for sensing a second component of the vibration signal of the reciprocating element, the second component having a second frequency range different than the first frequency range; and

a device for at least one of analyzing or displaying at least one of the first and the second components of the vibration signal,

wherein the vibration signal includes positional data of the reciprocating element along a first axis and a second axis substantially perpendicular to the first axis.

10. The system of claim 9, wherein the first frequency range is lower than the second frequency range.

11. The system of claim 9, wherein the first frequency range and the second frequency range are substantially non-overlapping.

12. The system of claim 9, wherein the device for at least one of analyzing or displaying is selected from a group consisting of:

a printing device, an electronic display, and a computing device having at least one of hardware or software for analyzing the vibration signal.

13. The system of claim 9, wherein the positional data of the reciprocating element along the first axis is sensed using the first sensing device and the positional data of the reciprocating element along the second axis is sensed using the second sensing device.

14. The system of claim 9, wherein the reciprocating device is selected from a group consisting of:

an engine, a pump, and a compressor.

16. The system of claim 9, wherein the first sensing device senses the first component of the vibration signal of the reciprocating element and the second sensing device senses the second component of the vibration signal of the reciprocating element and the first and second frequency ranges are substantially non-overlapping.

17. A reciprocating element for a reciprocating device comprising:

an elongate element having a longitudinal axis; and

at least one sensing device for sensing a vibration signal of the reciprocating element,

wherein at least a portion of the at least one sensing device is located within the elongate element and oriented substantially perpendicular to the longitudinal axis.

18. The reciprocating element of claim 17, wherein the at least one sensing device includes a first sensing device oriented substantially perpendicular to the longitudinal axis and a second sensing device oriented substantially perpendicular to both the longitudinal axis and the first sensing device.

19. A reciprocating device comprising:

a reciprocating element;

at least one non-reciprocating element through which the reciprocating element passes; and

at least one sensing device for sensing a vibration signal of the reciprocating element,

wherein at least a portion of the at least one sensing device is located within the at least one non-reciprocating element.