See the real chapter for details, small technology to solve big problems-talk about tunneling effect and its improvement
In the introduction of adsorption dryers, the term "tunneling effect" is often mentioned. So what exactly is "tunneling effect"?
We call the phenomenon of uneven air distribution in the drying tower, rapid flow in the middle and slow flow at the edges as the "tunneling effect"
Reason 1: Before the compressed air enters the drying tower, it will pass through an air distributor. There are many small holes scattered around and at the top of the air distributor. The compressed air enters the adsorption tower through these small holes. The structure at the outlet of the drying tower is the same as the inlet, so the flow at the center of the drying tower is short, and the flow at the left and right edges is longer; the larger the tower diameter, the longer the flow at the edges, the easier it is to form a "tunnel effect"
Cause 2: When the air distribution is uneven, a fast tunnel is easily formed in the center of the drying tower, and the adsorbent is not filled uniformly and tightly, and the frequent switching of the two towers, the repeated impact of compressed air, will also accelerate the "tunnel" "Formation.
In the introduction of adsorption dryers, the term "tunneling effect" is often mentioned. So what exactly is "tunneling effect"?
We call the phenomenon of uneven air distribution in the drying tower, rapid flow in the middle and slow flow at the edges as the "tunneling effect"
Reason 1: Before the compressed air enters the drying tower, it will pass through an air distributor. There are many small holes scattered around and at the top of the air distributor. The compressed air enters the adsorption tower through these small holes. The structure at the outlet of the drying tower is the same as the inlet, so the flow at the center of the drying tower is short, and the flow at the left and right edges is longer; the larger the tower diameter, the longer the flow at the edges, the easier it is to form a "tunnel effect"
Cause 2: When the air distribution is uneven, a fast tunnel is easily formed in the center of the drying tower, and the adsorbent is not filled uniformly and tightly, and the frequent switching of the two towers, the repeated impact of compressed air, will also accelerate the "tunnel" "Formation.
Hazard: Once the "tunnel" is formed, the speed of compressed air will increase, and the water will not be completely adsorbed, and the compressed air will have passed. At this time, a considerable part of the filler cannot be fully utilized, and a dead angle of adsorption is formed, resulting in adsorbent The utilization rate is greatly reduced, the adsorption effect is significantly reduced, and the dew point is increased.
Okmarts.com uses the following two main methods to improve this problem:
1. Using a customized air distributor, combined with a suitable tower "height-to-diameter ratio", after reasonable design calculations, while meeting the flow volume, it also ensures that the air flow can be evenly and reasonably dispersed, and the effectiveness of the design is verified by simulation Sex and reliability.
2. The bottom of the drying tower is filled with customized high-strength, large-particle activated alumina, which can not only distribute airflow, but also absorb water.
