Рашига кольцо

Raschig ring is the earliest developed random packing, named after the German chemist Friedrich Raschig. It's small tube cutting, which outside diameter is equal to its height, providing a surface for (re)evaporation of the most volatile part in the refluxing distillate, typically 10 mm in diameter and 12 mm long. It's used in commercial fractional distillation towers to reduce pressure loss (versus using trays), while maintaining good efficiency and economy. Typically the change in pressure (also called "delta p") is lower than in the case of trays but slightly higher than for structured packing.With the characters of high mechanical strength, high chemical stability, and excellent heat endurance, Ceramic Raschig Ring can resist high temperature, acid (except HF), alkali, salt and various organic solvents. It's widely applied in various packing towers of desiccation, absorption, cooling, washing, and regeneration in industries of petrochemical, chemical, metallurgy, gas and oxygen generation.For raschig ring with big size over 100mm, it's usually filled in the column orderly. If its size is less than 90mm, raschig ring is stacked in the column randomly. Technical date: Spec.D*H*T (mm)Surface area (m²/m³)Free volume (%)Number per m³Bulk density (Kg/m³)Dry Packing Factor(m-1)Ø 66*6*27897331100007372030Ø 1010*10*2440707200007001280Ø 1515*15*233070250000690960Ø 1616*16*230573192500730784Ø 2525*25*2.51907849000505400Ø 4040*40*51267512700577305Ø 5050*50*593816000457177Ø 8080*80*9.590681910714234Ø 100100*100*1070701000700172Ø 150150*150*155068295790142