IP Library Granted Patent US 7,297,260
Granted Patent B2
US 7,297,260 · App. 10/536,002 · Granted Nov 20, 2007

System and devices for collecting and treating waste water from engine washing

Assignee: Gas Turbine Efficiency AB
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Quick Facts
Patent No.
US 7,297,260
App. No.
10/536,002
Granted
Nov 20, 2007
Kind
B2
Abstract

A system and method for washing engines and for collecting and treating the waste water from engine washing operations. The system includes a collecting device for collecting waste liquid during a washing operation of the engine and a treatment device for treating waste liquid collected during the washing operation. The system may be advantageously arranged on a mobile cart having a chassis provided with wheels. The mobile cart also includes an adjusting device for adjusting the vertical position of liquid separating and collecting components relative to the engine.

Claims (43)

1. A system for collecting and treating waste liquid from engine washing comprising:

a collecting device for collecting waste liquid during a washing operation of an engine, said collecting device comprising a plurality of components, all of which are free of any physical connection to any portion of said engine during the washing operation, including,

a liquid separator positioned at a distance from an outlet of said engine, said liquid separator being configured to receive washing liquid entrained in an air stream exiting said engine outlet and to separate said washing liquid from said air stream; and

a liquid collector arranged to collect separated liquid from said liquid separator and liquid exiting the engine resulting from the washing operation; and

a treatment device for treating waste liquid collected during said washing operation, said treatment device including a filter arranged to remove particles and ions from said liquid;

said treatment device being connected to said liquid collecting device such that waste liquid is directed from said liquid collector to said treatment device for treatment in said filter.

2. The system according to claim 1 , wherein said collecting device further comprises:

a liquid storing component arranged to collect and store separated liquid from said liquid separator and liquid exiting the engine resulting from the washing operation collected by said liquid collector.

3. The system according to claim 2 , wherein said liquid collector comprises:

a funnel element arranged to collect separated liquid from said liquid separator; and

a guide element arranged to be located below said engine during said washing operation in order to collect and guide liquid exiting from said engine to said funnel element.

4. The system according to claim 3 , wherein said funnel element is a trough arranged to direct liquid entering an inlet opening to said liquid storing component.

5. The system according to claim 3 , wherein said funnel element is directly connected to said pump.

6. The system according to claim 3 , wherein said guide element is a chute having a front end and a rear end, said front end being arranged vertically higher than said rear end, said rear end being arranged at said funnel element so that liquid collected by said chute is directed to said funnel element.

7. The system according to claim 1 , wherein said treatment device further includes a liquid storing component arranged to collect and store liquid treated by said filter.

8. The system according to claim 1 wherein said liquid separator includes separator profiles arranged to deflect the air stream in order to separate the droplets of the waste liquid from the air stream.

9. The system according to claim 8 , wherein said liquid separator profiles are arranged to guide said liquid to an opening in a face directed against said liquid collector.

10. The system according to claim 1 , wherein said filter comprises:

a first filter arranged to remove particles from said liquid; and

a second filter arranged to remove ions from said liquid.

11. The system according to claim 10 , wherein said first filter is a sediment type filter.

12. The system according to claim 10 , wherein said second filter is a metal particulate bed type filter.

13. The system according to claim 1 , wherein said treatment device further comprises a pump arranged to pump liquid from said liquid storing component or from said liquid collector to said filter.

14. The system according to claim 1 , further comprising a mobile cart with a wheeled chassis for serving an engine during a washing operation of said engine, said system arranged on said chassis, and an adjusting device for adjusting a position of at least one of said liquid separator, said liquid collector, and said liquid storing component relative to said engine.

15. The system according to claim 14 , wherein said adjusting device is configured to adjust said position in at least one of a vertical, horizontal, or lateral direction.

16. The system according to claim 14 , wherein said liquid separator is arranged on supports arranged on said chassis and said adjusting device is one of a hydraulic, pneumatic and chain driven unit.

17. The system according to claim 14 , wherein said adjusting device is a scissor lift arranged on said chassis.

18. A collecting device for use with multiple engine types and sizes of engines for collecting waste liquid from washing of an engine while the engine is being cranked, wherein cranking of the engine creates an air stream through the engine, thereby entraining the washing liquid into the air stream, and with the air stream having a velocity that ranges anywhere between low to high velocities according to the engine type and size of the engine, the collecting device comprising:

a liquid separator positioned at a spaced separation from an outlet of said engine, said liquid separator being configured to receive washing liquid entrained in an air stream exiting said engine outlet and to separate said washing liquid from said air stream; and

a liquid collector positioned at a spaced separation from the engine and to collect separated liquid from said liquid separator and liquid exiting the engine resulting from the washing operation,

wherein both said liquid separator and said liquid collector are free of physical connection to any portion of the engine during a waste liquid collection operation, whereby said liquid separator and said liquid collector are operable to accommodate multiple engine types and sizes of engines, and a range of air stream velocities generated as the engine is being cranked depending on the engine type and size of engine, including low velocities, high velocities and all velocities between low and high velocities.

19. The collecting device according to claim 18 , further comprising:

a liquid storing component arranged to collect and store separated liquid from said liquid separator and liquid exiting the engine resulting from the washing operation collected by said liquid collector, said liquid separator, said liquid collector and said liquid storing component each being free of any physical connection to said engine.

20. The collecting device according to claim 18 , wherein said liquid separator includes separator profiles arranged to deflect the air stream in order to separate the droplets of the waste liquid from the air stream.

21. The collecting device according to claim 20 , wherein said liquid separator profiles are arranged to guide said liquid to an opening in a face directed against said liquid collector.

22. The collecting device according to claim 18 , wherein said liquid collector comprises:

a funnel element arranged to collect separated liquid from said liquid separator; and

a guide element arranged to be located below said engine during said washing operation in order to collect and guide liquid exiting from said engine to said funnel element, said funnel and guide elements each being free of any physical connection to said engine.

23. The collecting device according to claim 22 , wherein said funnel element is a trough arranged to direct liquid entering a inlet opening to said storing component.

24. The collecting device according to claim 22 , wherein said guide element is a chute having a front end and a rear end, said front end being arranged vertically higher than said rear end, wherein said rear end is arranged at said funnel element so that liquid collected by said chute is directed to said funnel element.

25. The collecting device according to claim 18 , further comprising an adjusting device for adjusting a position of at least one of said liquid separator and said liquid collector relative to said engine in order to accommodate multiple engine types and sizes of engines.

26. The collecting device according to claim 25 , wherein said adjusting device is configured to adjust said position in at least one of a vertical, horizontal, and lateral direction.

27. The collecting device according to claim 26 , further comprising a mobile cart with a wheeled chassis for serving an engine during a washing operation of said engine, with at least one said liquid separator and said liquid collector being arranged on said chassis.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE NAME OF THE 2ND ASSIGNOR PREVIOUSLY RECORDED AT REEL: 025859 FRAME: 0110. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Oct 5, 2017
From: GAS TURBINE EFFICIENCY AB; GAS TURBINE EFFICIENCY SWEDEN AB
To: PRATT & WHITNEY LINE MAINTENANCE SERVICES, INC.
Reel/Frame 044167/0036 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2013
From: PRATT & WHITNEY LINE MAINTENANCE SERVICES, INC.
To: ECOSERVICES, LLC
Reel/Frame 030238/0298 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 23, 2011
From: GAS TURBINE EFFICIENCY AB; GAS TURBINE EFFICIENCY SWEDEN AS
To: PRATT & WHITNEY LINE MAINTENANCE SERVICES, INC.
Reel/Frame 025859/0110 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2006
From: HJERPE, CARL-JOHAN; ASPLUND, PETER
To: GAS TURBINE EFFICIENCY AB
Reel/Frame 017335/0609 →
Continuity (1)
Related Publication 20060081521A1 · Apr 20, 2006