Diaphragm filter element

The utility model relates to a diaphragm filter element, including the diaphragm, be equipped with a plurality of parallel arrangement's protruding unit on the diaphragm, protruding unit includes parallel arrangement's first protruding unit and the protruding unit of second, first protruding unit includes that a plurality of centre of a circle intervals equal the first arch of equipartition range on same water flat line, the protruding unit of second includes that a plurality of centre of a circle intervals equal that the second of equipartition range on same water flat line is protruding, center distance and the center distance between the adjacent second arch between the adjacent first arch equal, center distance between first arch and adjacent two the second archs equals, center distance between first arch and the adjacent second arch equals the center distance between the adjacent first arch. The utility model discloses a with the reasonable design of arch, when the arch is flow through to filtrating, gua