Media pads with mist elimination features

Patent metadata

Field	Value
Publication number	US-9551282-B2
Application number	US-201414516663-A
Country	US
Kind code	B2
Filing date	Oct 17, 2014
Priority date	Oct 17, 2014
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

The present application provides a media pad for cooling an inlet air flow to a compressor of a gas turbine engine. The media pad may include a first media sheet with a chevron corrugated surface having a first mist eliminator and a second media sheet with a wavy corrugated surface having a second mist eliminator.

First claim

We claim:

1. A media pad for cooling an inlet air flow to a compressor of a gas turbine engine, comprising:
a first media sheet;
the first media sheet comprising a chevron corrugated surface with a first mist eliminator, the chevron corrugated surface comprising a plurality of chevron channels with a diagonally rising portion and a positive Y-axis direction and a diagonally lowering portion in a negative Y-axis direction, wherein the first mist eliminator is adjacent to the diagonally lowering portion; and
a second media sheet adjacent to the first media sheet;
the second media sheet comprising a wavy corrugated surface with a second mist eliminator, the wavy corrugated surface comprising substantially lateral waves that are adjacent to the second mist eliminator;
wherein the first media sheet and the second media sheet extend from a leading edge to a trailing edge, and wherein the chevron corrugated surface and the wavy corrugated surface extend from the leading edge towards the trailing edge; and
wherein the inlet air flows in a positive X-axis direction that is perpendicular to the Y-axis.

2. The media pad of claim 1 , wherein the leading edge faces the inlet air flow.

3. The media pad of claim 1 , wherein the first mist eliminator and the second mist eliminator are positioned about the trailing edge.

4. The media pad of claim 1 , wherein the leading edge and the trailing edge comprise a diamond like shape.

5. The media pad of claim 4 , wherein a leading edge chevron angle is about 17degrees and a trailing edge chevron angle is about 18 degrees.

6. The media pad of claim 4 , wherein the diamond like shape comprises a bonding portion and an expanded portion.

7. The media pad of claim 1 , wherein the first media sheet and the second media sheet extend from a top edge to a bottom edge.

8. The media pad of claim 7 , wherein the top edge faces a flow of water.

9. The media pad of claim 1 , wherein the first mist eliminator extends from the diagonally lowering portion at a sharp angle.

10. The media pad of claim 1 , wherein the wavy corrugated surface comprises a plurality of wavy channels with peaks and valleys.

11. The media pad of claim 10 , wherein the second mist eliminator extends from a valley at a sharp angle.

12. The media pad of claim 1 , wherein the first mist eliminator and the second mist eliminator comprise an integral mist eliminator.

13. A method of cooling an inlet air flow for a gas turbine engine, comprising:
positioning a media pad with a first corrugated surface having a chevron configuration, a second corrugated surface having a sinusoidal wavy configuration, and an integral mist eliminator about an inlet of the gas turbine engine, wherein the first corrugated surface and the second corrugated surface extend from a leading edge to a trailing edge, and wherein the chevron corrugated surface and the wavy corrugated surface extend from the leading edge towards the trailing edge;
flowing water from a top to a bottom of the media pad through the first corrugated surface and the second corrugated surface;
exchanging heat between the inlet air flow and the flow of water;
capturing any mist from the flow of water in the integral mist eliminator; and
flowing the captured mist back to the first corrugated surface and the second corrugated surface.

14. A media pad for cooling an inlet air flow to a compressor of a gas turbine engine, comprising:
a first media sheet;
the first media sheet comprising a plurality of chevron channels leading to a first mist eliminator, the plurality of chevron channels comprising a diagonally rising portion in a positive Y-axis direction and a diagonally lowering portion in a negative Y-axis direction, wherein the first mist eliminator is adjacent to the diagonally lowering portion; and
a second media sheet;
the second media sheet comprising a plurality of substantially horizontal wavy channels leading to a second mist eliminator;
wherein the first mist eliminator and the second mist eliminator form an integral mist eliminator; and
wherein the first media sheet and the second media sheet extend from a leading edge facing an inlet air flow to a trailing edge with the integral mist eliminator, and wherein the plurality of chevron channels and the plurality of wavy channels extend from the leading edge towards the trailing edge; and
wherein the inlet air flows in a positive X-axis direction that is perpendicular to the Y-axis.

15. The media pad of claim 14 , wherein the leading edge and the trailing edge comprise a diamond like shape.

16. The media pad of claim 14 , wherein the plurality of wavy channels comprises peaks and valleys.

Assignees

• Gen Electric

Inventors

• Zhang Jianmin
• Kippel Bradly Aaron

Classifications

• C04B41/009

  characterised by the material treated · CPC title

• B01D45/08

  by impingement against baffle separators · CPC title

• F01M13/04

  having means for purifying air before leaving crankcase, e.g. removing oil · CPC title

• F02C7/185 Primary

  Cooling means for reducing the temperature of the cooling air or gas · CPC title

• F02C7/057

  Control or regulation (conjointly with fuel supply control F02C9/50, with nozzle area control F02K1/16) · CPC title