Ultra low pressure drop packing sheet with flow guiding cut out windows and structured packing

摘要

Disclosed are an ultra low pressure drop packing sheet with flow guiding cut out windows and a structured packing wherein the windows are cut out of wave peaks and wave troughs of the corrugated packing sheet with the cut out window being comprised of a window opening (1) and fan blades (2) such that when the window opening and the packing sheet are deployed horizontally the area of the window opening(1) is 0% 1000% of the area of the fan blades (2); when the area of the window opening (1) is zero the upper edges of the window opening (1) coincide with the lower edges thereof; a zone is included between the lower edges of the window opening (1) and a horizontal axis of the window opening (1) a definition is made such that the area of the portion below the axis is positive and the area of the portion above the axis is negative and the area of the window opening (1) needs to be greater than zero; and the intersection lines between the fan blades (2) and the packing sheet are of bilateral symmetry and an included angle a forming thereby is 10°- 170°.