固体吸附除湿固定床结构实验研究

Experimental Study on Fixed Bed Structure for Solid Adsorption Dehumidification

以吸附床结构的3种不同组合方式为研究对象,即600 mm×500 mm×100 mm模块1个、600 mm×500 mm×50 mm模块2个间隔100 mm顺排与叉排,以粒径为2 mm的13X分子筛作为吸附剂,进行实验研究。在同一进口参数干球温度32℃、相对湿度60%的条件下,采用空气处理量、吸附过程床体压降对该吸附床结构的传热传质进行分析。结果表明:在该实验进口参数条件下,在厚度方向上分成两个模块间隔100 mm距离摆放除湿性能更好,且单位时间空气处理量叉排只略高于顺排8.3%;不同组合压降几乎相同。

Three different combinations of the bed structure are the researched object, a 600 mm×500 mm×100 mm module and two 600 mm×500 mm×50 mm modules were placed spacing lOOmm with dif- ferent arranging details. 13X molecular sieve with particle diameter of 2 mm is prepared as a solid desiccant material. With the same import parameters, dry bulb temperature of 32 ~C, relative humidity of 60%, the heat and mass transfer of fixed bed structure are analyzed with method of air handing capacity and pressure drop in adsorption process. The results show that good dehumidification performance will be achieved with two divided modules spacing lOOmm in the thickness direction, the air handing capacity within the unit time of crossed row is 8.3% higher than the paralleled row. The pressure drop is almost same for different combinations.