| 摘要 |
PROBLEM TO BE SOLVED: To provide an exchangeable filter system constituted so that the amount of a unit filter to be burned or scrapped can be reduced by extending the exchange cycle of the unit filter. SOLUTION: This exchangeable filter system is constituted so that the unit filter consisting of a pleated filter medium 30 is housed in a frame 12 to be attached/detached. A reinforcing pole 21b having a shape tubular or grooved in the longitudinal direction is arranged in the frame 12 on the downstream surface side of the medium 30 so that the pole 21b intersects the creases of the pleat of the medium 30. COPYRIGHT: (C)2005,JPO&NCIPI
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