System and method for inspecting turbomachines

Patent metadata

Field	Value
Publication number	US-9657597-B2
Application number	US-201414588187-A
Country	US
Kind code	B2
Filing date	Dec 31, 2014
Priority date	Jul 11, 2014
Publication date	May 23, 2017
Grant date	May 23, 2017

Abstract

A system for inspecting a turbomachine is provided. The system includes a pressure isolation system configured to maintain a pressure resistant seal around a probe. The pressure isolation system has a probe bearing located adjacent to a pressure seal. The probe bearing is configured to facilitate back and forth movement of the probe by reducing friction. A gimbal mount is connected to the pressure isolation system. The pressure isolation system has a valve seal located between the gimbal mount and the pressure seal. The valve seal is configured to isolate the pressure seal from the gimbal mount when the probe is not in the valve seal. The system is configured to move the probe into and out of the turbomachine.

First claim

The invention claimed is:

1. A system for inspecting a turbomachine, the system comprising:
a pressure isolation system configured to maintain a pressure resistant seal around a probe, the pressure isolation system having a probe bearing located adjacent to a pressure seal, the probe bearing configured to facilitate back and forth movement of the probe by reducing friction;
a gimbal mount connected to the pressure isolation system; and
wherein the pressure isolation system has a valve seal located between the gimbal mount and the pressure seal, the valve seal is configured to isolate the pressure seal from the gimbal mount when the probe is not in the valve seal, and the system is configured to move the probe into and out of the turbomachine, and wherein the valve seal is at least one of a ball valve seal or a guillotine seal.

2. The system of claim 1 , wherein the probe bearing is comprised of at least one of:
roller bearings, ball bearings, or low friction material.

3. The system of claim 1 , wherein the pressure seal is connected to a pressurized source or a vacuum source.

4. The system of claim 1 , the gimbal mount further comprising:
a plurality of turnbuckles located at equal intervals around the gimbal mount; and
wherein the gimbal mount is configured to be mounted to a port or a vessel flange of the turbomachine, and adjustment of the turnbuckles translates into a tangential or axial adjustment of a sensor head position for the probe.

5. The system of claim 4 , wherein there are four turnbuckles located at 90 degree intervals around the gimbal mount; and
wherein adjustment of two turnbuckles spaced by 180 degrees results in an axial movement of the sensor head, and adjustment of two other turnbuckles spaced by 180 degrees results in a tangential movement of the sensor head, with respect to the turbomachine.

6. The system of claim 1 , further comprising:
a traverse actuator system having a carriage configured to move the probe into and out of the turbomachine, and a track having a plurality of linearly arranged teeth, the track configured for operation with the carriage, a yaw drive configured to rotate the probe about a radial axis of the turbomachine;
a motor operably connected with the carriage and the track, the motor configured to engage the plurality of linearly arranged teeth so that operation of the motor forces the carriage to move along the track; and
an enclosure configured to operate in hazardous environments, the enclosure housing the motor.

7. The system of claim 6 , the traverse actuator system further comprising:
a camera configured to observe an insertion location of the probe, the camera configured to operate in hazardous environments; and
wherein the camera is connected to a monitoring station having a display.

8. The system of claim 6 , the traverse actuator system further comprising:
a leg assembly attached to a rail of the traverse actuator system, the leg assembly configured to stabilize the traverse actuator system; and
wherein the leg assembly comprises a plurality of adjustable length legs configured to lock in position at a desired length.

9. The system of claim 6 , the traverse actuator system further comprising:
an articulated cable guide comprised of a plurality of chain links, the articulated cable guide configured to retain a plurality of cables, and to follow movement of the carriage so that the cables avoid catching on obstructions.

10. The system of claim 6 , the traverse actuator system further comprising:
a mounting plate attached to a rail, the rail supports both the pressure isolation system and the gimbal mount, the mounting plate is configured to align with a complementary mounting plate of the traverse actuator system; and
wherein a plurality of keys are interposed between the mounting plate and the complementary mounting plate to ensure alignment between the traverse actuator system and the gimbal mount.

11. The system of claim 1 , the probe further comprising at least one of:
a pressure probe having a plurality of ports, a moisture probe, a temperature probe, a camera.

12. The system of claim 1 , the probe further comprising:
a pressure probe having a plurality of ports, and an elongated shaft having a sensor head located at one end and a plurality of output ports located at an opposing end of the elongated shaft.

13. A system for inspecting a turbomachine, the system comprising:
a pressure isolation system configured to maintain a pressure resistant seal around a probe, the pressure isolation system having a probe bearing located adjacent to a pressure seal, the probe bearing configured to facilitate back and forth movement of the probe by reducing friction;
a gimbal mount connected to the pressure isolation system, a plurality of turnbuckles located at equal intervals around the gimbal mount; and wherein the gimbal mount is configured to be mounted to a port or a vessel flange of the turbomachine, and adjustment of the turnbuckles translates into a tangential or axial adjustment of a sensor head position for the probe; and
wherein the pressure isolation system has a valve seal located between the gimbal mount and the pressure seal, the valve seal is configured to isolate the pressure seal from the gimbal mount when the probe is not in the valve seal, and the system is configured to move the probe into and out of the turbomachine.

14. The system of claim 13 , wherein the probe bearing is comprised of at least one of:
roller bearings, ball bearings, or low friction material.

15. The system of claim 13 , wherein the pressure seal is connected to a pressurized source or a vacuum source.

16. The system of claim 13 , wherein there are four turnbuckles located at 90 degree intervals around the gimbal mount; and
wherein adjustment of two turnbuckles spaced by 180 degrees results in an axial movement of the sensor head, and adjustment of two other turnbuckles spaced by 180 degrees results in a tangential movement of the sensor head, with respect to the turbomachine.

17. The system of claim 13 , further comprising:
a traverse actuator system having a carriage configured to move the probe into and out of the turbomachine, and a track having a plurality of linearly arranged teeth, the track configured for operation with the carriage, a yaw drive configured to rotate the probe about a radial axis of the turbomachine;
a motor operably connected with the carriage and the track, the motor configured to engage the plurality of linearly arranged teeth so that operation of the motor forces the carriage to move along the track; and
an enclosure configured to operate in hazardous environments, the enclosure housing the motor.

18. The system of claim 17 , the traverse actuator system further comprising:
a camera configured to observe an insertion location of the probe, the camera configured to operate in hazardous environments; and
wherein the camera is connected to a monitoring station having a display.

19. The system of claim 17 , the traverse actuator system further comprising:
a leg assembly attached to a rail of the traverse actuator system, the leg assembly configured to stabilize the traverse actuator system; and
wherein the leg assembly comprises a plurality of adjustable length legs configured to lock in position at a desired length.

20. The system of claim 17 , the traverse actuator system further comprising:
an articulated cable guide comprised of a plurality of chain links, the articulated cable guide configured to retain a

Assignees

• Gen Electric

Inventors

• Moore Lawrence James
• Fuller Fredrick Levi
• Boss Jason Michael
• Zabek Bernard Baran
• Geraci Gerald Marco
• Pomykai Michael Richard

Classifications

• F05D2260/83

  Testing, e.g. methods, components or tools therefor · CPC title

• B64D47/08

  Arrangements of cameras · CPC title

• G01N2021/9542

  using a probe · CPC title

• F01D21/003

  Arrangements for testing or measuring (for measuring vibrations G01H) · CPC title

• F05D2260/80

  Diagnostics · CPC title