IP Library Granted Patent US 11,414,164
Granted Patent B2
US 11,414,164 · App. 16/434,643 · Granted Aug 16, 2022

Inspection vehicle with maintenance tools

Inventors: Gregory A. Cole (West Hartford, CT); William J. Eakins (Bloomfield, CT); Daniel T. Lasko (Bloomfield, CT); Harshang Shah (Bloomfield, CT); Thomas A. Fuhlbrigge (Ellington, CT); Luiz V. Cheim (St. Charles, MO); Poorvi Patel (Ballwin, MO); Biao Zhang (West Hartford, CT); Saumya Sharma (Hartford, CT); Andrew Salm (West Hartford, CT)
Assignee: Hitachi Energy Switzerland AG
B63G8/001B63G8/16G01N21/954G05D1/0094G21C17/013G21C17/017B63G2008/004G05D1/0038G05D1/0044
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Quick Facts
Patent No.
US 11,414,164
App. No.
16/434,643
Granted
Aug 16, 2022
Kind
B2
Abstract

An inspection vehicle operable for performing one or more maintenance and repair operations in a housing filled at least partially with a liquid medium is disclosed in the present application. The inspection vehicle includes a propulsion device operable in the liquid medium and includes at least one sensor operable for sensing and transmitting data associated therewith. A control system including an electronic controller is in electronic communication with the inspection vehicle to transmit and receive communication signals to/from the inspection vehicle. One or more maintenance tools operable with the inspection vehicle are configured to perform maintenance and/or repair operations within the liquid filled housing.

Claims (46)

1. An inspection system for an enclosed tank that includes a sealed configuration, the system comprising:

an inspection vehicle having a propulsion device operable in the enclosed tank that has the sealed configuration and that is at least partially filled with a liquid medium;

at least one sensor that is carried by and operable with the inspection vehicle;

a control system including an electronic controller in electronic communication with the inspection vehicle; and

one or more maintenance tools operable with the inspection vehicle,

wherein the sensor is configured to transmit a location of a damaged structural component and the inspection vehicle is configured to be maneuvered to the location, and

wherein the sensor is configured to identify the damaged structural component from among non-damaged components.

2. The inspection system of claim 1 , wherein the one or more maintenance tools includes at least one of a grasping device, a cutting device, an impact device, a magnet, a welder and a rotary tool.

3. The inspection system of claim 2 , wherein the one or more maintenance tools includes a suction pump, and

wherein the suction pump is in fluid communication with an inlet port formed in a housing of the inspection vehicle.

4. The inspection system of claim 3 , further comprising an outlet port formed in the housing of the inspection vehicle, the outlet port in fluid communication with the inlet port.

5. The inspection system of claim 4 , wherein the suction pump is operable for drawing in a quantity of the liquid with entrained solid particulate through the inlet port and for discharging the liquid medium and solid particulate through the outlet port.

6. The inspection system of claim 4 further comprising a filter positioned proximate to the outlet port, the filter configured to trap solid particulate and permit liquid to flow therethrough.

7. The inspection system of claim 2 , wherein the one or more maintenance tools includes a suction pump, and

wherein the suction pump includes a rotatable impeller.

8. The inspection system of claim 7 , wherein the impeller is operable to also provide a propelling thrust for the inspection vehicle within the liquid medium.

9. The inspection system of claim 1 , wherein the one or more maintenance tools includes a repair apparatus.

10. The inspection system of claim 9 , wherein the repair apparatus includes one or more injector nozzles coupled to the inspection vehicle.

11. The inspection system of claim 10 , wherein the one or more injector nozzles is configured to eject a liquid repair compound onto the damaged component.

12. The inspection system of claim 11 , wherein the repair compound is capable of curing in the liquid medium.

13. The inspection system of claim 12 , wherein liquid medium includes one of a petroleum base mineral oil, a synthetic oil or other non-aqueous liquid.

14. The inspection system of claim 11 , wherein the liquid repair compound includes one of a two part acrylic paste, a UV hardening adhesive, a pre-impregnated fiberglass patch or a combination thereof.

15. The inspection system of claim 9 , wherein the repair apparatus is operable to repair a structural defect, an outer surface defect and/or an insulation layer defect.

16. The inspection system of claim 1 , wherein the sensor comprises at least one of a thermal camera, a sonar camera, a radar sensor and a three-dimensional vision sensor.

17. A method for performing maintenance operations within a housing at least partially filled with a liquid, the method comprising:

moving a liquid propelled inspection vehicle within the housing;

sensing, with a sensor, a region within the housing that requires maintenance; and

performing a maintenance procedure on the region with the inspection vehicle,

wherein the maintenance procedure includes repairing an outer surface and/or repairing a structural defect of a component within the housing, and

wherein the component is a high tension coil and the outer surface is at least partially formed from an insulation material.

18. The method of claim 17 , wherein the maintenance procedure includes at least one of suction of liquid and solid particle debris into the inspection vehicle and discharging the solid particle debris into a filter, grasping and moving an object, cutting an object, threading or unthreading a threaded fastener, impacting an object, and welding.

19. The method of claim 17 , wherein the repairing includes ejecting a liquid compound from the inspection vehicle onto the component.

20. The method of claim 19 , wherein the liquid compound includes one of a two part acrylic paste, a UV hardening adhesive or a pre-impregnated fiberglass patch.

21. The method of claim 19 , further comprising curing the liquid compound with a light source.

22. An inspection and maintenance system comprising:

an inspection vehicle maneuverable within a housing at least partially filled with a liquid medium;

a control system operable for locating an area requiring maintenance and/or repair; and

one or more tools operably coupled with the inspection vehicle configured to perform a repair procedure on a component surrounded by the liquid medium,

wherein the repair procedure includes repairing an outer surface and/or repairing a structural defect of the component surrounded by the liquid medium.

23. The inspection and maintenance system of claim 22 , wherein the one or more tools are configured for a vacuum system.

24. The inspection and maintenance system of claim 23 , wherein the vacuum system includes a suction pump in fluid communication with an inlet port and an outlet port formed in a housing of the inspection vehicle.

25. The inspection and maintenance system of claim 24 , wherein the vacuum system includes a filter in fluid communication with the inlet port.

26. The inspection and maintenance system of claim 22 , wherein the one or more tools are configured for a repair system.

27. The inspection and maintenance system of claim 26 , wherein the repair system includes one or more injection nozzles coupled to the inspection vehicle, the one or more nozzles configured to eject a repair compound onto a damaged component.

28. The inspection and maintenance system of claim 27 , wherein the repair compound is formed to cure and harden in the liquid medium.

29. The inspection and maintenance system of claim 22 , wherein the one or more tools include a grasping device, a cutting device, an impact device, a magnet, a welder and a rotary tool.

Assignments (4)
MERGER Recorded Nov 13, 2023
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 065549/0576 →
CHANGE OF NAME Recorded Dec 31, 2021
From: ABB POWER GRIDS SWITZERLAND AG
To: HITACHI ENERGY SWITZERLAND AG
Reel/Frame 058601/0692 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 11, 2020
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 053183/0446 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 7, 2020
From: COLE, GREGORY A.; EAKINS, WILLIAM JOHN; LASKO, DANIEL T.; SHAH, HARSHANG; PATEL, POORVI; CHEIM, LUIZ V.; FUHLBRIGGE, THOMAS A.; ZHANG, BIAO; SHARMA, SAUMYA; SALM, ANDREW
To: ABB SCHWEIZ AG
Reel/Frame 052331/0073 →