Structured packing of woven tissue

摘要

A wire cloth packing comprises fabric layers (1) made of a filament of metal or plastic. The fabric layers include bulges (3, 10) for maintaining the fabric layers at a distance. The bulges include first protuberances and second protuberances, thus defining respective apexes. The first protuberances have trough shaped configuration. The second protuberances are formed on the first protuberances. The second protuberance is sized smaller than the first protuberances. The neighboring fabric layers are supported on one another via the second protuberances. The fabric layers are made of wires having a diameter from 0.05-1, preferably 0.08-0.25 mm. The bulges have a depth of 1-100, preferably 1-20 mm. The bulges are spaced from one another by a distance of 10-100, preferably 30-50 ram. The bulges are disposed in offset relationship. The second protuberances are defined by a diameter of 1-10, preferably 1-3 ram. The first protuberances have a bell curve shaped cross section, rod-shaped configuration, hemispherical configuration, and pyramidal configuration. The first protuberances are configured in the form of cylinders, or blocks. The fabric layers have a warp and a weft, with compressed zones (9) formed in warp and weft in an area of the apexes. The warp and weft is made of multifilament strands. The warp and weft has mesh width of less than 5, preferably less than 1 mm. The fabric layers extend in a vertical direction with warp and weft extending at an angle to the vertical direction. The fabric layers have third protuberances of a height smaller than a height of the first protuberances. The third protuberances extend out of the fabric layers in alternating directions. The third protuberances are spaced apart from one another at 2-90, preferably 2-20 mm. The warp and weft has interlaced in liquid guide filaments defined by a thickness greater than a thickness of the remaining filaments of the fabric layers. The liquid guide filaments are made of several multifilament strands. The filament has a surface provided with a metallic or ceramic coating. An independent claim is included for mass transfer apparatus.