System and method for providing a film treatment to a surface using inlet bleed heat manifold

Patent metadata

Field	Value
Publication number	US-9644484-B2
Application number	US-201414485072-A
Country	US
Kind code	B2
Filing date	Sep 12, 2014
Priority date	Sep 12, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

Disclosed herein are systems and methods for treating a surface, such as a gas turbine surface, with a filming agent using an inlet bleed heat manifold. A filming control system includes a storage tank configured to contain a filming agent; an inlet bleed heat manifold; and a supply conduit coupled to the storage tank on a first end and the inlet bleed heat manifold on a second end; wherein the filming control system is configured to deliver the filming agent from the storage tank and to discharge the filming agent through the inlet heat bleed manifold and the filming agent includes siloxane, fluorosilane, mercapto silane, amino silane, tetraethyl orthosilicate, succinic anhydride silane, or a combination including at least one of the foregoing.

First claim

What is claimed:

1. A method comprising:
mixing a filming agent with a liquid to form a filming solution, wherein the filming agent comprises siloxane, fluorosilane, mercapto silane, amino silane, tetraethyl orthosilicate, succinic anhydride silane, or a combination comprising at least one of the foregoing; and
dispensing the filming solution onto a gas turbine surface, where dispensing comprises dispensing the filming solution directly into an inlet bleed heat manifold of the gas turbine.

2. The method of claim 1 , wherein the gas turbine surface is at least one of a casing, a vane, a blade, a rotor wheel, or a turbine.

3. The method of claim 1 , wherein the liquid is deionized water.

4. The method of claim 3 , further comprising adjusting a pH of the filming solution with acetic acid.

5. The method of claim 1 , wherein a pH of the filming solution is from about 5 to about 9.

6. The method of claim 1 , wherein the filming solution is dispensed as a liquid.

7. The method of claim 1 , wherein the filming solution is dispensed as steam.

8. The method of claim 1 , wherein the filming solution is dispensed as an aerosol.

9. The method of claim 1 , wherein the filming agent includes a combination of at least two of siloxane, fluorosilane, mercapto silane, amino silane, tetraethyl orthosilicate, or succinic anhydride silane.

10. The method of claim 1 , wherein the filming agent imparts one or more properties to the surface, the one or more properties comprising passivity, hydrophobicity, oleophobicity, anti-stick properties, or a combination comprising at least one of the foregoing.

11. The method of claim 1 , wherein the filming solution is dispensed using a quick-disconnect provision in fluid communication with a gas turbine.

12. The method of claim 1 , further comprising mixing a non-ionic surfactant with the filming agent.

Assignees

• Gen Electric

Inventors

• Ekanayake Sanji
• Scipio Alston Ilford

Classifications

• F05D2270/11

  to prolong engine life · CPC title

• F05D2220/32

  in gas turbines · CPC title

• F02C7/30

  Preventing corrosion {or unwanted deposits} in gas-swept spaces · CPC title

• F05D2260/95

  Preventing corrosion · CPC title

• B05D7/22

  to internal surfaces, e.g. of tubes · CPC title