| 摘要 |
PURPOSE:To enhance the heat exchange performance by a method wherein liquid is uniformly distributed during heat exchange process due to the self-wetting power of laminate sheets and at the same time turbulence is caused in gas. CONSTITUTION:A unidirectionally ribbed laminate sheet 1 consists of at least two laminate sheets, which are made of self-supporting and hard woven fabric 2 or knit fabric 3 and contact with one another. In one pair of laminate sheets constituted as mentioned above, the dimensions of texture or stitch of the respective adjacent laminate sheets are different from one another. The dimension of texture or stitch of a coarse woven fabric or a knit fabric with coarse meshes in not less than 0.2mm. and less than 10mm. respectively. By the manner as mentioned above, the contact surface area can be made extremely larger than that of a single laminate sheet. Mass and heat exchange can be enhanced with the pressure drop nearly equal to the pressure drop developed with the packing material composed of ribbed laminate sheets, each of which consists of a single laminate sheet. |
