US 6,602,328 B2 · Gas turbine suction air filter, a gas turbine using the same and a method for using the same

Abstract

A gas turbine suction air filter is provided wherein, despite a large capacity, dust is easily removed by an ultrasonic washer. A gas turbine suction air filter (1) has a box-like frame member (3) and a filter cloth (5) contained in the frame member (3). The frame member (3) is made of a metal material, preferably a stainless steel. The filter cloth (5) is formed having many pleats so that many folded faces (7) are formed. No intervening member is provided between adjacent folded faces (7, 7), with only a space being arranged there. The filter cloth (5) is a non-woven fabric of a synthetic resin fiber, preferably a polypropylene fiber. While this filter (1) has a large capacity, an ultrasonic wave reaches the entire filter cloth (5) when the filter (1) is washed by an ultrasonic washer.

Claims8

Dependent claims

A gas turbine suction air filter capable of being washed with an ultrasonic wave washing unit, comprising:

a frame member having an air-passing cross section formed in a rectangular shape, said frame member being made of a metal material in order to lessen damping of ultrasonic waves by said frame member, and said frame member having an air passing direction;
and
a filter cloth contained in said frame member, said filter cloth comprising at least 50% synthetic resin fiber by volume;
wherein said filter cloth is folded such that multiple folded faces are formed along the air passing direction of said frame member;
wherein adjacent said folded faces directly face each other with only a space there between;
and
wherein said filter has a capacity, for an opening area of 0.35 m2, of at least 50 m3/minute.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

09/838,189Filed 20 Apr 2001

Priority

JP 2000-40166128 Dec 2000

Published

US 2002/0083836 A14 Jul 2002

Granted

5 Aug 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

B01D 46/521
Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material: using folded, pleated material
B01D 46/04
Particle separators, e.g. dust precipitators, having hollow filters made of flexible material: cleaning filters
B01D 46/2411
Characterised by the physical shape or structure of the filtering element: filter cartridges
B01D 46/62
With multiple filtering elements, characterised by their mutual disposition: connected in series

Gas turbine suction air filter, a gas turbine using the same and a method for using the same

Life of this patent

Gas turbine suction air filter, a gas turbine using the same and a method for using the same

Life of this patent

Abstract

Claims8