초록 ▼

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 mater

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.

대표청구항 ▼

1. 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 f

1. 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. 2. The gas turbine suction air filter capable of being washed with an ultrasonic wave washing unit of claim 1, wherein said metal material of said frame member has a thickness of about 1 mm. 3. The gas turbine suction air filter capable of being washed with an ultrasonic wave washing unit of claim 1, wherein said metal material of said frame member is stainless steel. 4. The gas turbine suction air filter capable of being washed with an ultrasonic wave washing unit of claim 1, wherein said filter cloth is a nonwoven fabric. 5. The gas turbine suction air filter capable of being washed with an ultrasonic wave washing unit of claim 1, wherein said synthetic resin fiber comprises a polypropylene or a polyester. 6. The gas turbine suction air filter capable of being washed with an ultrasonic wave washing unit of claim 1, wherein said frame member and said filter cloth are structured and arranged so as to be washable with an ultrasonic wave washing unit. 7. A gas turbine having an air suction portion comprising at least one gas turbine suction air filter capable of being washed with an ultrasonic wave washing unit according to claim 1. 8. A method of using a gas turbine suction air filter, comprising: drawing air into a gas turbine through a gas turbine suction air filter according to claim 1; washing the gas turbine suction air filter with an ultrasonic washer; and reusing the gas turbine suction air filter by again drawing air into the gas turbine through the gas turbine suction air filter.