Patent ID: 9638055
Date: 2017-05-02
CPC Classifications: B08B,C23C,F01D,F04D,F05D

Claim:
1. A turbomachine cooling hole cleaning method comprising: introducing a cleaning agent into a cooling circuit of a turbomachine part, the cooling circuit having at least one cooling passage with a respective cooling hole; pressurizing the cleaning agent in the cooling circuit until a first defined condition is met, wherein the pressurizing includes connecting a first pressurization apparatus to a cleaning agent supply and to the cooling circuit and operating the first pressurization apparatus until the first defined condition is met; and introducing a neutralization agent to the turbomachine part while the cleaning agent is applied to the cooling circuit, wherein the introducing of the neutralization agent includes using a conduit to connect a neutralization agent supply to a sprayer head configured to spray neutralization agent onto the turbomachine part, wherein one of the cleaning agent or the neutralization agent includes an acid, and the other of the cleaning agent or neutralization agent includes a base.