Automated detection and control system and method for high pressure water wash application and collection applied to aero compressor washing

• US 8,197,609 B2
• Filed: 11/12/2007
• Issued: 06/12/2012
• Est. Priority Date: 11/28/2006
• Status: Active Grant

• Current Assignee: EcoServices, LLC (Singapore Technologies Engineering Limited)
• Original Assignee: Pratt & Whitney Line Maintenance Services, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Alvestig, Per G., Nordlund, Sebastian
• Primary Examiner(s): Barr, Michael
• Assistant Examiner(s): OSTERHOUT, BENJAMIN LEE
• Application Number:
  US11/938,479
• Publication Number:
  US 20080178909A1
• Time in Patent Office: 1,674 Days
• Field of Search: 134/1, 134/18, 134/21, 134/22.1, 134/22.12, 134/22.18, 134/23, 134/24, 134/95.1, 134/102.2, 134/104.4, 134/166.R, 134/169.A, 210/171, 210/251, 210/776, 427/239, 427/319, 607/72
• US Class Current: 134/18
• CPC Class Codes: B08B 3/02 Cleaning by the force of jets or sprays
• CPC Class Codes: B08B 3/14 Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquidstreatment of water in general C02F
• CPC Class Codes: B08B 9/00 Cleaning hollow articles by methods or apparatus specially adapted thereto B08B6/00 takes precedence
• CPC Class Codes: F01D 25/002 Cleaning of turbomachines

Abstract

The present invention relates to a system and method for washing gas turbine engines comprising a manifold comprising one or more tubes; a pumping system for providing pressurized washing liquid to the manifold, the pumping system comprising a pump, and one or more valves; and a control unit for regulating the pumping system according to washing parameters associated to a particular engine.

Claims

1. A system for washing turbine engines comprising:

a washing unit for providing a washing liquid to the turbine engines;

a manifold comprising one or more tubes;

a pumping system for providing pressurized washing liquid to the manifold, with the pumping system comprising a pump and one or more valves;

a control unit for regulating the washing unit according to washing parameters associated to a particular engine, wherein the control unit regulates the pumping system and the flow of pressurized washing liquid, and is preprogrammed to include control data, wherein the control unit is a programmed logic controller (PLC), said PLC being configured to washing preparation, washing delivery, fouling collection, used washing liquid treatment, and overall washing effectiveness for use in future optimization of a washing process;

one or more nozzles, one each connected to one end of the one or more tubes, wherein the control unit regulates the pumping system;

a hose for connecting the manifold to the pumping system, wherein the pumping system is configured to provide forty (40) to eighty (80) bar pressurized washing liquid, and wherein the one or more valves is configured for use in regulating the flow of the pressurized washing liquid;

an information unit connected to the manifold for providing information relating to the manifold, wherein the information unit is a manifold identification unit comprising a radio-frequency identification (RFID) unit for providing

information related to the manifold'"'"'s type, wherein the information unit further includes information relating to the type of engine desired to be washed to be used by the control unit to regulate a washing time and to select a washing liquid type;

an information detector comprising a RFID reader for reading information provided by the information unit and for providing the information to the control unit;

a temperature sensor in communication with the control unit for measuring a temperature of washing liquid, the control unit using the measured temperature for regulating a washing procedure; and

comprising means for measuring a conductivity and trace composition of used washing liquid as it exits an engine being washed, wherein information related to the measured conductivity and trace composition are provided to the control unit for use in adjusting a wash procedure for an engine being washed.

2. The system of claim 1, wherein the information provided by the information detector is used by the control unit to select a washing liquid type.

3. The system of claim 1, wherein the control unit is in communication with an integrated system, whereby the control unit is configured to upload washing results related to fouling material solubility for future use to improve existing washing procedures.

4. The system of claim 1, further comprising a mobility unit for use in transporting the pumping system.

5. The system of claim 4, further comprising a used liquid collector for collecting used washing liquid and engine contaminants that emanate from an engine as a result of a washing procedure.

6. The system of claim 5, wherein the used liquid collector is mobile.

7. The system of claim 6, further comprising a collection device positioned at a rear of an engine and a trough positioned under an engine for capturing used washing liquid and providing said used washing liquid to the used liquid collector.

8. The system of claim 7, further comprising a tank for treating used washing liquid provided by the used liquid collector.

9. The system of claim 8, wherein the tank comprises at least one of a filter, centrifuge, and separator for use in treating the used washing liquid.

10. The system of claim 1, wherein the control data comprises at least one of manifold configuration data, washing requirement data, washing parameter data, expected fouling composition data, and geographic use data for use in determining an optimal washing procedure for a particular engine.

11. A system for collecting waste liquid from engine washing comprising:

a liquid collector for collecting used washing liquid that emanates from an engine as a result of a washing procedure;

a control unit for regulating the washing procedure based on one or more characteristics of the used washing liquid, wherein the used washing liquid is analyzed to evaluate characteristics including the types of solid(s) included in the used washing liquid.

12. The system of claim 11, further comprising a tank for treating used washing liquid provided by the used liquid collector.

13. The system of claim 12, wherein the tank comprises at least one of a filter, centrifuge, and separator for use in treating the used washing liquid.

14. A system for washing engines and collecting waste liquid from the engine washing comprising:

a washing unit for providing a washing liquid into an engine;

a collector unit for collecting used washing liquid that emanates from the engine as a result of a washing procedure;

a control unit for regulating the washing unit based on characteristics of the used washing liquid emanating from the engine; and

a device for analyzing the used washing liquid to determine the characteristics of the used washing liquid including the types of solid(s) included therein, and which is evaluated by the control unit to regulate the washing unit.

15. A method for washing engines comprising:

providing a washing liquid into an engine;

regulating the washing unit based on characteristics of the used washing liquid emanating from the engine; and

analyzing the used washing liquid to determine the characteristics of the used washing liquid including the types of solid(s) included therein, and which is evaluated by the control unit to regulate the washing unit.

16. The method of claim 15, further comprising collecting used washing liquid that emanates from the engine as a result of a washing procedure.