CMR filler design structure for air separation tower
By introducing reinforced shell and limiting groove structures into the CMR filler, the problems of insufficient gas-liquid contact and blade deformation are solved at the center position, and a more efficient gas-liquid mass transfer effect is achieved.
Patent Information
- Application Number
- CN202422417430.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The curved blades of existing air-dividing towers can only extend to the center of the ring, resulting in no gas-liquid contact points at the center, poor mass transfer ability, and the blades tend to deform under the impact of water flow to affect the mass transfer effect.
A CMR filler structure is designed, using a combination of reinforced shell, diversion cap, limiting groove and mass transfer groove. The central position is sealed by reinforced shell, gas-liquid contact points are added, and the blade position is fixed through the limit groove to prevent the blade from deforming.
The number of gas-liquid contact points is improved, and the mass transfer capacity is enhanced, ensuring that the blade does not deform under the impact of long-term water flow, and maintains stable mass transfer performance.
Smart Images
Figure CN223128061U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air separation tower packing, in particular to a design structure of CMR packing for an air separation tower. Background Technique
[0002] The cascade mini ring (CMR) is a new type of perforated packing. It is provided with a tapered flanging at its end, window holes are opened on the ring wall, and curved blades extend towards the center of the ring. Due to its small height and special structure of the tapered flanging, it not only improves the gas-liquid distribution in the packing layer, but also increases the gas-liquid contact points, which is beneficial to the convergence and dispersion of liquid and the continuous renewal of the membrane surface, thus strengthening mass transfer.
[0003] The cascade mini ring has the characteristics of thin wall, heat resistance, large voids, large throughput, small resistance, etc., and is particularly suitable as the packing of an air separation tower. However, for some existing CMR packings used in air separation towers, the curved blades can only extend a short distance towards the center of the ring, there are no gas-liquid contact points at the center position of the cascade mini ring, the mass transfer capacity of the cascade mini ring is poor, and during use, the curved blades of the cascade mini ring are impacted by water flow for a long time and are prone to changing positions, affecting its mass transfer capacity. Therefore, a design structure of CMR packing for an air separation tower is proposed for the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a design structure of CMR packing for an air separation tower to solve the problems that for some existing CMR packings used in air separation towers, the curved blades can only extend a short distance towards the center of the ring, there are no gas-liquid contact points at the center position of the cascade mini ring, the mass transfer capacity of the cascade mini ring is poor, and during use, the curved blades of the cascade mini ring are deformed, affecting its mass transfer capacity.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A design structure of CMR packing for an air separation tower includes a ring arm, a reinforcement shell and a clamping shaft. Flangings are fixedly connected to both the upper and lower sides of the ring arm. Five window holes are arranged inside the ring arm. A blade is fixedly connected to one side of the window hole of the ring arm. A pair of positioning blocks are fixedly connected to both the uppermost and lowermost sides inside the ring arm. A pair of clamping grooves are arranged on both the uppermost and lowermost sides inside the ring arm. A reinforcement shell is arranged inside the ring arm. Flow guiding caps are fixedly connected to both the top and bottom of the reinforcement shell. A pair of positioning rods are fixedly connected to both the outer top and bottom of the reinforcement shell. Five limiting grooves and five mass transfer grooves are arranged on the curved side surface of the reinforcement shell. A pair of sliding grooves are arranged on both the upper and lower sides of the reinforcement shell. Clamping shafts are slidably connected inside the sliding grooves of the reinforcement shell. A pair of limiting blocks are fixedly connected to the relatively inner parts of each pair of clamping shafts. The limiting blocks are slidably connected with the reinforcement shell. Two compression springs are fixedly connected to the relatively inner sides of each pair of clamping shafts. The relatively inner ends of the compression springs are fixedly connected with the reinforcement shell.
[0007] The window holes are evenly distributed on the annular arm, the blades are all of a curved structure, each pair of the engaging grooves are symmetrically distributed left and right, and one end of each engaging shaft is inserted into the engaging groove of the annular arm.
[0008] The reinforcing shells are all cylindrical shells, the flow guiding caps are all hemispherical shells, the positioning rods are all horizontally distributed in the front-rear direction, the relative outer sides of the positioning rods are all in contact with the annular arm, and the sides of the positioning rods are all in contact with the positioning blocks.
[0009] The limiting grooves and the mass transfer grooves are evenly distributed on the curved side surfaces of the reinforcing shells. The heights of the limiting grooves are all equal to that of the blades, the heights of the mass transfer grooves are all equal to the inner height of the reinforcing shells, and one end of each blade is located in the limiting groove of the reinforcing shell.
[0010] Each pair of the sliding grooves are symmetrically distributed left and right, the engaging shafts are all horizontally distributed in the left-right direction, and each pair of the limiting blocks are located inside the sliding grooves of the reinforcing shells.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] In the present utility model, through the arranged reinforcing shells, flow guiding caps, limiting grooves, mass transfer grooves and sliding grooves, the device can seal the central position of the structure through the reinforcing shells, enable better gas-liquid circulation through the mass transfer grooves of the reinforcing shells, increase the gas-liquid contact points, improve the mass transfer capacity of the structure, and limit one end of the blades through the limiting grooves of the reinforcing shells, so that the blades will not change their positions when being impacted by water flow for a long time, and ensure the mass transfer capacity of the blades. Description of the Drawings
[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0014] Figure 2 is a sectional view of the external structure of the present utility model;
[0015] Figure 3 is a schematic diagram of the internal structure of the present utility model;
[0016] Figure 4 is a sectional view of the internal structure of the present utility model;
[0017] Figure 5 is a sectional view of the installation structure of the engaging shaft of the present utility model.
[0018] In the figure: 1, annular arm; 2, flange; 3, window hole; 4, blade; 5, positioning block; 6, engaging groove; 7, reinforcing shell; 8, flow guiding cap; 9, positioning rod; 10, limiting groove; 11, mass transfer groove; 12, sliding groove; 13, engaging shaft; 14, limiting block; 15, compression spring. Detailed implementation manners
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0020] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. are usually specified.
[0021] Please refer to Figures 1-5 , the present invention provides a technical solution:
[0022] A CMR packing design structure for an air separation tower, including a ring arm 1, a reinforcement shell 7 and a clamping shaft 13. Flanges 2 are fixedly connected to both the upper and lower sides of the ring arm 1. Five window holes 3 are provided inside the ring arm 1. A blade 4 is fixedly connected to one side of the window hole 3 of the ring arm 1. A pair of positioning blocks 5 are fixedly connected to both the uppermost and lowermost parts inside the ring arm 1. A pair of clamping grooves 6 are provided at both the uppermost and lowermost parts inside the ring arm 1. A reinforcement shell 7 is provided inside the ring arm 1. Flow guiding caps 8 are fixedly connected to both the top and bottom of the reinforcement shell 7. A pair of positioning rods 9 are fixedly connected to both the outer top and bottom of the reinforcement shell 7. Five limiting grooves 10 and five mass transfer grooves 11 are provided on the curved side surface of the reinforcement shell 7. A pair of sliding grooves 12 are provided on both the upper and lower side surfaces of the reinforcement shell 7. Clamping shafts 13 are slidably connected inside the sliding grooves 12 of the reinforcement shell 7. A pair of limiting blocks 14 are fixedly connected to the relatively inner part of each pair of clamping shafts 13. The limiting blocks 14 are slidably connected to the reinforcement shell 7. Two compression springs 15 are fixedly connected to the relatively inner side of each pair of clamping shafts 13. The relatively inner ends of the compression springs 15 are fixedly connected to the reinforcement shell 7.
[0023] The window holes 3 are evenly distributed on the annular arm 1. The blades 4 are all bent structures. Each pair of engaging grooves 6 are symmetrically distributed left and right. One end of each engaging shaft 13 is inserted into the engaging groove 6 of the annular arm 1, and the reinforcing shell 7 can be fixed to the inner side of the annular arm 1 through the engaging shaft 13. The reinforcing shells 7 are all cylindrical shells, the flow guiding caps 8 are all hemispherical shells, the positioning rods 9 are all horizontally distributed in the front-back direction. The relative outer sides of the positioning rods 9 are all in contact with the annular arm 1, and the sides of the positioning rods 9 are all in contact with the positioning blocks 5. Through the positioning rods 9 and the positioning blocks 5, the reinforcing shell 7 can be accurately positioned during installation. The limiting grooves 10 and the mass transfer grooves 11 are evenly distributed on the curved side surfaces of the reinforcing shell 7. The heights of the limiting grooves 10 are all equal to that of the blades 4, and the heights of the mass transfer grooves 11 are all equal to the inner height of the reinforcing shell 7. One end of each blade 4 is located in the limiting groove 10 of the reinforcing shell 7, and the blades 4 can be limited by the limiting grooves 10. Each pair of sliding grooves 12 are symmetrically distributed left and right. The engaging shafts 13 are all horizontally distributed in the left-right direction. Each pair of limiting blocks 14 are located inside the sliding grooves 12 of the reinforcing shell 7, and the moving distance of the engaging shafts 13 can be restricted by the limiting blocks 14 and the sliding grooves 12.
[0024] Working process: The annular arm 1, the flanging 2, the window holes 3 and the blades 4 of this device are all existing structures. The positioning block 5 is fixedly connected to the annular arm 1 and the engaging groove 6 is provided. The reinforcing shell 7, the flow guiding cap 8, the positioning rod 9, the engaging shaft 13, the limiting block 14 and the compression spring 15 are a component. The engaging shaft 13 can slide on the left and right sides of the reinforcing shell 7, and the moving range of the limiting block 14 is restricted by the sliding groove 12 of the reinforcing shell 7, that is, the sliding distance of the engaging shaft 13 can be restricted. A force in the outer side direction of the reinforcing shell 7 can be applied to the engaging shaft 13 through the compression spring 15. Just press the two pairs of engaging shafts 13 towards the inner side of the reinforcing shell 7 to make the engaging shaft 13 retract a certain length, then the reinforcing shell 7 and the flow guiding cap 8 can be placed on the inner side of the annular arm 1. The reinforcing shell 7 is located at the exact center of the annular arm 1 through the support of the positioning rod 9. Since the blades 4 are formed by bending the cut-out materials when cutting the window holes 3, one end of the blade 4 can penetrate into the limiting groove 10 during the production of this structure. Rotate the reinforcing shell 7 to make the positioning rod 9 and the positioning block 5 fit together. At this time, the blade 4 cannot leave the limiting groove 10, and the engaging shaft 13 is aligned with the engaging groove 6 of the annular arm 1. Push out the engaging shaft 13 through the compression spring 15 to make the end of the engaging shaft 13 engage with the engaging groove 6 of the annular arm 1, then this device can be put into use. This device can reduce the impact on the reinforcing shell 7 during the gas-liquid flow through the flow guiding cap 8, so that the reinforcing shell 7 can be stably fixed to the inner side of the annular arm 1. Seal the central position of this structure through the reinforcing shell 7. Make the gas-liquid flow better through the mass transfer groove 11 of the reinforcing shell 7, increase the gas-liquid contact points, improve the mass transfer capacity of this structure, and limit one end of the blade 4 through the limiting groove 10 of the reinforcing shell 7, so that the blade 4 will not change its position when being impacted by the water flow for a long time, ensuring the mass transfer capacity of the blade 4.
[0025] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in this utility model can all be purchased from the market. The special-shaped parts can all be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, no further details will be given here.
[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A CMR packing design structure for an air separation column, comprising an annular arm (1), a reinforcement shell (7) and a clamping shaft (13), characterized in that: On both the upper and lower sides of the ring arm (1), there are fixedly connected flanges (2). Inside the ring arm (1), there are five window holes (3). On one side of the window holes (3) of the ring arm (1), there is fixedly connected a blade (4). At the uppermost and lowermost positions on the inner side of the ring arm (1), there are fixedly connected a pair of positioning blocks (5) respectively. At the uppermost and lowermost positions on the inner side of the ring arm (1), there are a pair of engaging grooves (6) respectively. On the inner side of the ring arm (1), there is a reinforcing shell (7). At the top and bottom of the reinforcing shell (7), there are fixedly connected flow guiding caps (8) respectively. At the top and bottom on the outer side of the reinforcing shell (7), there are fixedly connected a pair of positioning rods (9) respectively. On the curved side surface of the reinforcing shell (7), there are five limiting grooves (10) and five mass transfer grooves (11). On the upper and lower side surfaces of the reinforcing shell (7), there are a pair of sliding grooves (12) respectively. Inside the sliding grooves (12) of the reinforcing shell (7), there are slidably connected engaging shafts (13). On the relatively inner side portion of each pair of engaging shafts (13), there are fixedly connected a pair of limiting blocks (14). The limiting blocks (14) are slidably connected with the reinforcing shell (7). On the relatively inner side of each pair of engaging shafts (13), there are fixedly connected two compression springs (15). The relatively inner ends of the compression springs (15) are fixedly connected with the reinforcing shell (7).
2. The design structure of the CMR packing for an air separation column according to claim 1, wherein: The window holes (3) are evenly distributed on the ring arm (1). The blades (4) are all of curved structures. Each pair of the engaging grooves (6) are symmetrically distributed left and right. One end of each engaging shaft (13) is inserted into the engaging groove (6) of the ring arm (1).
3. The design structure of the CMR packing for an air separation column according to claim 1, characterized in that: The reinforcing shells (7) are all cylindrical shells. The flow guiding caps (8) are all hemispherical shells. The positioning rods (9) are horizontally distributed in the front - rear direction. The relatively outer sides of the positioning rods (9) are in contact with the ring arm (1). The side surfaces of the positioning rods (9) are in contact with the positioning blocks (5).
4. The design structure of a CMR filler for an air separation column according to claim 1, characterized in that: The limiting grooves (10) and the mass transfer grooves (11) are evenly distributed on the curved side surface of the reinforcing shell (7). The heights of the limiting grooves (10) are all equal to that of the blades (4). The heights of the mass transfer grooves (11) are all equal to the inner height of the reinforcing shell (7). One end of each blade (4) is located in the limiting groove (10) of the reinforcing shell (7).
5. The design structure of a CMR filler for an air separation column according to claim 1, characterized in that: Each pair of the sliding grooves (12) are symmetrically distributed left and right. The engaging shafts (13) are horizontally distributed in the left - right direction. Each pair of the limiting blocks (14) are located inside the sliding grooves (12) of the reinforcing shell (7).