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冷冻式干燥机选型Freeze drying machine selection

新闻来源:杭州日丰空气处理设备幸运飞艇    发布日期:2017.01.20

当决定选用冷冻式干燥机后,我们要掌握需干燥压缩空气的状态参数

When choosing a Freeze dryer, we need to master the dry compressed air state parameters:

1) 最大流量The maximum flow rate.

 

2) 最小工作压力和最大工作压力,工作压力越。?顾蹩掌?械暮??烤痛。至于最大工作压力是从安全使用冷干机的角度考虑

Minimum working pressure and maximum working pressure. When the pressure is small, the moisture content of air compression is large. The maximum working pressure is considered as far from the point of view of the safe use of the the cold dry machine.

 

3) 最高进口温度,温度越高,含水量越大,热负荷也越大

The maximum inlet temperature -  the higher the temperature, the greater the moisture content and the greater the heat load.

4) 要求的露点温度. The required dew point temperature.

上述四个参数决定了压缩空气的最大负荷,也是选择冷冻式干燥机的基础。 在确定了上述参数后,我们需要确定推荐风冷式还是水冷式。风冷式冷干机对环境要求较高,但具有安装方便、使用简单的优点;而水冷式冷干机对环境温度不敏感,但对冷却水有要求,而且安装较风冷式复杂——需要接冷却水管和冷却水塔。 为了提高冷干机的质量稳定性,一般情况下结合有关标准和气候、用户要求等把冷干机进行标准化。

These four parameters determine the maximum load of compressed air, but also the basis for the selection of refrigeration dryers. After determining the above parameters, we need to determine whether the recommended air-cooled or water-cooled. Air cooling type cold dry machine have higher environmental requirements, but have the advantages of convenient installation, easy use; and the water-cooled cold and dry machine is not sensitive to temperature, but there are requirements for cooling water, and the installation is complex -- need to connect the air-cooled cooling water pipe and cooling tower. In order to improve the quality of the cold dry machine, under normal circumstances, combined with the relevant standards,  climate and user requirements, etc.. 
 



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