公开(公告)号：US20180258787A1

公开(公告)日：2018-09-13

申请号：US15451836

申请日：2017-03-07

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Nicole Jessica TIBBETTS ,  Bernard Patrick BEWLAY ,  Ambarish Jayant KULKARNI ,  Byron Andrew PRITCHARD, JR. ,  Keith Anthony LAURIA ,  Michael Edward ERIKSEN

IPC: F01D25/00 ,  B08B3/08 ,  B08B3/00

Abstract: The present disclosure provides methods and systems of generating flows of detergent through a turbine engine to effectuate cleaning of components thereof. The methods include introducing a foamed, acid-including detergent with a pH range of between 2 and 7 into a gas flowpath of the turbine engine. The methods also include creating a pressure differential in an aft portion of the gas flowpath with respect to a forward portion of the gas flowpath to generate a flow of the detergent therethrough. The methods further include creating a pressure differential in a forward portion of the gas flowpath with respect to an aft portion of the gas flowpath to generate a counterflow of the detergent therethrough. The flow and counterflow of the detergent through the gas flowpath interact with components of the turbine engine having foreign material thereon to at least partially remove the foreign material therefrom.

公开(公告)号：US20180094538A1

公开(公告)日：2018-04-05

申请号：US15274613

申请日：2016-09-23

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Nicole Jessica TIBBETTS ,  Bernard Patrick BEWLAY ,  Byron Andrew PRITCHARD, JR. ,  Brian Michael ELLIS ,  Michael Edward ERIKSEN ,  Keith Anthony LAURIA

IPC: F01D25/00 ,  F02C3/04

CPC classification number: F01D25/002 ,  B08B3/04 ,  B08B7/00 ,  B08B9/00 ,  B08B9/02 ,  B08B9/027 ,  C11D1/10 ,  C11D1/72 ,  C11D3/2086 ,  C11D3/30 ,  C11D3/349 ,  C11D11/0041 ,  C11D11/0058 ,  C23G1/02 ,  C23G1/061 ,  C23G1/088 ,  F02C3/04 ,  F05D2230/72 ,  Y02T50/672

Abstract: The present disclosure provides methods and systems for in situ cleaning of hot gas flowpath components of a turbine engine that form portions of a hot gas flowpath extending through the turbine. The hot gas flowpath components may include a layer of accumulated contaminants on first portions thereof that form a respective portion of the hot gas flowpath. The first portions may include a thermal battier coating (TBC), and the layer of accumulated contaminants may overlie the TBC and at least partially infiltrate into the TBC. The accumulated contaminants may include CaO—MgO—Al2O3-SiO2 (CMAS) partial melt. The methods may include introducing an acid-including detergent into the hot gas flowpath of the turbine engine and onto the hot gas flowpath components to clean the accumulated contaminants from the first surfaces of the components.