关键词:

规整填料, 压降, 波纹齿角, 计算流体力学模拟

Abstract:

The relationship between pressure drop and channel opening angle of structured packing was studied in order to develop a new approach to intensifying the traditional structured packing.The overall dry-bed pressure drop could be divided into three different parts, which were caused, respectively, by the gas-gas collision in the crisscross junction, the direction change in the interlayer junction, and the drag near the wall zones.The computational fluid dynamics (CFD)software was used to calculate these three kinds of pressure drop.It was shown from the results that the dry-bed pressure drop could decrease significantly when the channel opening angle decreased from traditional about 90° to 20°.The CFD simulations were consistent with the experimental data.

Key words:

规整填料, 压降, 波纹齿角, 计算流体力学模拟