WE CLAIM
1. A cleaning system for a gas turbine engine comprising:
a fluid tank with fluid therein;
a nozzle device for spraying the fluid from the fluid tank;
a connection line for connecting the fluid tank with the nozzle device, wherein the connection line comprises:
a pump device for pumping the fluid from the fluid tank to the nozzle device; a flow meter for measuring a flow rate of the fluid passing through the pump device; and
a regulatory valve; and a computer, wherein the pump device, the flow meter and the regulatory valve are operably coupled with the computer, and the computer controls the regulatory valve to automatically regulate a flow rate of the fluid entering into the nozzle device based on a measured flow rate of the fluid passing through the pump device and a fluid flow demand.
2. The cleaning system of claim 1, further comprising:
a human machine interface coupled with the computer and configured to allow an operator to read and write data, wherein the computer receives the fluid flow demand via the human machine interface.
3. The cleaning system of claim 1 or 2, further comprising:
a switch valve coupled between the regulatory valve and the nozzle device; wherein the computer controls the switch valve to automatically shut down based on a cleaning duration setpoint.
4. The cleaning system of claim 1or 2, further comprising:
a filter disposed in the connection line and configured to filter out impurities in the fluid.
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5. The cleaning system of claim 1 or 2, further comprising:
a liquid level transducer for detecting a liquid level in the fluid tank.
6. The cleaning system of claim 5, wherein the liquid level transducer sends a
liquid level feedback signal to the computer, and the computer generates a warning
signal when a detected liquid level is below a liquid level setpoint.
7. The cleaning system of claim 1 or 2, further comprising: a heating device for heating the fluid in the fluid tank.
8. The cleaning system of claim 7, further comprising:
a temperature transducer for detecting a fluid temperature in the fluid tank.
9. The cleaning system of claim 8, wherein the temperature transducer sends a fluid temperature feedback signal to the computer and the computer controls the heating device to automatically shut down when a detected fluid temperature reaches a temperature setpoint.
10. The cleaning system of claim 1 or 2, wherein the connection line has a tank valve operably connected with the computer, the fluid tank is coupled to the pump device via the tank valve, and the computer automatically controls to open or close the tank valve.
11. The cleaning system of claim 10, wherein the fluid tank comprises a clean water tank with clean water therein.
12. The cleaning system of claim 11, wherein the fluid tank further comprises:
a detergent tank with detergent therein, wherein the detergent tank is coupled to the pump device via the tank valve.
13. The cleaning system of claim 12, further comprising:
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a selection valve operably coupled with the computer, wherein the clean water tank and the detergent tank are respectively coupled to the tank valve via the selection valve, and the computer controls the selection valve to automatically switch between the clean water tank and the detergent tank.
14. The cleaning system of claim 1, further comprising:
an output device coupled with the computer and configured to record and output data in association with cleaning process.
15. The cleaning system of claim 1, wherein the regulatory valve comprises a ratio
regulatory valve for steplessly regulating the flow rate of the fluid entering into the
nozzle device.
Dated this the 10th day of January, 2019
CHAITANYA WINGKAR
Agent for the Applicant [IN/PA -1532]
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