Cascade Mini Ring for short, a lower aspect ratio increases capacity and reduces pressure drop and the highly exposed internal and external surfaces give a high efficiency vehicle for liquid – gas contact with good mechanical strength.Lower aspect ratio increase capacity and reduces pressure drop; its preferential orientation in a packed bed with the cylindrical axis in the vertical plane, allows a free passage for gas to flow through it. Smaller column size without sacrificing the efficiency.
The lower pressure drop and higher throughput of ring enables a smaller column diameter and fan size to be specified in new installations,the highly exposed internal and external surfaces provide an efficient vehicle for liquid–gas contact,by multiple drip-points.More resistant to fouling Because a combination of Metal Cascade Mini Rings' vertical alignment and open sides, allow any solids present to be flushed downwards through the packed bed.Good Mechanical Strength which allows Metal Cascade Mini Rings' use in deep packed beds that have a higher hydraulic capacity. Application ﹡Desulphurization and decarburization system in compound ammonia plant ﹡Decompressed plant in crude oil separated plant ﹡All kind of separation process such as separation of methanol ﹡Separation of organic acid ﹡Absorb or disabosorb tower.
|
Φ25
|
25*12.5*0.5
|
81500
|
228
|
439
|
90
|
312.8
|
|
Φ38
|
38*19*0.8
|
27200
|
132.5
|
475.5
|
91
|
175.8
|
|
Φ50
|
50×28×0.8
|
10740
|
114.2
|
400
|
92.7
|
143.1
|
|
Φ76
|
76×38×1.0
|
3420
|
90
|
306
|
92.9
|
112.3
|
The above data is reference to material stainless steel (AISI304) in the material thickness shown. Other material available: carbon steel, stainless steel including 304, 304L, 410,316, 316L.
Advantage
Reduced pressure drop
Reduced Pressure drop occurs because the Cascade Mini Ring has its largest opening predominantly in the direction of the vapor/liquid flow which allows for easy passage, this reduces the pressure drop significantly.
Increased plant capacity
Increased plant capacity is the direct result of the result of the reduction in pressure drop that Cascade Mini Rings provide, as this moves the operating point further away from the “critical pressure drop point” at which flooding occurs. This is typically 1 -2 in ., wc/ft or 10-20 mbar/in). This effect allows additional vapor/liquid handling and therefore increases plant capability
Improved resistance to “fouling”.
Improved resistance to fouling results from the directional positioning of the rings,(largest opening in direction of flow ) as any solids entering the packed bed are more easily flushed through the packing matrix.
Higher operational efficiency
Higher operational efficiency occurs because of the preferential orientation which ensures that in most of the ring surface are positioned vertically rather than horizontally, and this is also advantageous for mass transfer. High efficiency is dependent on as much of the available surface area as possible being effectively wetted. The underside of any horizontal surface in a packed bed or tower is naturally shielded from the liquid trickling down and is therefore not fully wetted, such dry surfaces play little or no part in the mass transfer process. Cascade Mini Ring significantly reduces this effect, and therefore gives much higher plant operational efficiency.
