CN101342477B - Fin flow guiding regular packing for distillation operation of rotary packed bed - Google Patents
Fin flow guiding regular packing for distillation operation of rotary packed bed Download PDFInfo
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- CN101342477B CN101342477B CN2008100555974A CN200810055597A CN101342477B CN 101342477 B CN101342477 B CN 101342477B CN 2008100555974 A CN2008100555974 A CN 2008100555974A CN 200810055597 A CN200810055597 A CN 200810055597A CN 101342477 B CN101342477 B CN 101342477B
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- fin
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Abstract
The present invention relates to a filler for rotary filling bed, in particular to the pin-guided normal filling for the rectification of the rotary filling bed, which solves the poor gas-liquid reverse contact effect existing in the filling rectification of the rotary filling bed. The present invention comprises an upper disc and a lower disc; the upper disc is provided with a plurality of cylindrical upper guide plates with different diameters; the lower disc is provided with a plurality of cylindrical lower guide plates with different diameters; the upper guide plate and the lower guide plate are staggeredly arranged; a fluid channel is arranged between the upper guide plate and the lower disc and between the lower guide plate and the upper disc; the upper guide plate is provided with a plurality of downward-inclined fins and the lower guide plate is provided with a plurality of upward-inclined fins. The present invention expands the phase contact area, strengthens the turbulence degree of gas and liquid in filling, extends the flowing distance and contact time of the fluid in the filling, intensifies the mass transfer effect of the filling and further improves the separation ability of the equipment.
Description
Technical field
The present invention relates to a kind of rotary packed bed filler of using, be specially a kind of fin flow guiding regular packing for distillation operation of rotary packed bed.
Background technology
Distillation process is actually vapour, the mass transfer of liquid counter current contacting, diabatic process, and filler plays crucial effects in this process.The scientific worker has carried out a large amount of work aspect the research and development of filler; The time of contact of the contact area of rational filler design can effectively raising vapour, liquid and prolongation vapour, liquid etc.; Play the microcosmic contact mixed effect of strengthening vapour, liquid, and then improve the separating power of equipment.
Rotary packed bed vapour, the liquid contact effect that can greatly strengthen distillation process; Here except that the hypergravity effect that under high speed rotation situation, forms; Very important is relevant with filler, and particularly at different process operations or handle aspect the different systems, the structure of filler should be different.Mostly common rotary packed bed use filler is the ripple silk net filler, is mainly used in aspects such as GAS ABSORPTION, gas desorption and nano material preparation.It is more that these unit operations are studied, but aspect distillation operation, distillation operation is followed the process of heat transfer, mass transfer simultaneously, and its special nature and technological requirement are arranged.General Study person has generally continued to use above-mentioned ripple silk net filler (as shown in Figure 3).In fact; The characteristics that the distillation operation process has heat transfer, mass transfer to carry out simultaneously; Not only require vapour, liquid that bigger contact area is arranged in filler, and require that long contact distance and time of contact are arranged, so that fluid forms bigger temperature difference and concentration difference at the filler import and export.According to such requirement, researcher has been developed baffling dish filler (as shown in Figure 4) in recent years, has prolonged vapour, liquid contact distance and the time in filler to a certain extent, has improved the separating power of equipment.
Be illustrated in figure 3 as the disclosed rotary packed bed ripple silk net filler of using of U.S. Pat 4382900A, ripple silk net is wrapped in the rotor that is made up of last disc, lower disc and inside and outside rotary drum.Liquid is radially thrown away from the filler inboard by action of centrifugal force laterally.The flow through distance of liquid in filler is:
L＝L
1+L
2+L
3
Wherein, L
1For the radial flow of liquid in filler through distance, mm; L
2For the axial flow of liquid in filler through distance, mm; L
3For the peripheral flow of liquid in filler through distance, mm.The centrifugal force suffered owing to liquid is bigger, and the time of staying in filler has only several seconds, so L
2, L
3Can ignore, then
Wherein, R
2, R
1Be respectively external diameter, the internal diameter of whole filler, mm; D is the diameter of corrugation twine, mm.
It is disclosed rotary packed bed with baffling dish filler to be illustrated in figure 4 as Chinese patent CN1686591A, and its core component is the baffling dish that is made up of the different-diameter concentric turns of Xiang Qian up and down; The baffling dish that is positioned at the top is fixed on the housing, is quiet baffling dish; What match with quiet baffling dish is the moving baffling dish that is embedded in its below mutually, and moving baffling dish is fixed on the rotating shaft and with axle and rotates.Since liquid in rotor, receive action of centrifugal force can only wetting baffling dish on inboard and upper and lower disc radial distance half the of concentric turns, therefore, the flowing through distance in the liquid filler is:
L′＝L
1′+L
2′
Wherein, L
1' be the distance of flow of liquid through concentric turns, L
1'=nh, mm; N representes the number of the concentric turns in the filler, and h representes the axial height of concentric turns, mm; L
2' be the flow of liquid warp distance of disc up and down, L
2'=R
2-R
1Therefore,
L′＝L
1′+L
2′＝nh+(R
2-R
1)
When filler internal diameter, external diameter and axial height (general＞when 30mm) identical; L ￠＞L, promptly the liquid distance of in the used filler of Fig. 4, flowing through is than the distance of flowing through in the used filler of Fig. 3, and is corresponding; Vapour, liquid also prolong the time of contact in filler, and the separating effect of equipment is increased.But the problem that exists is: the filler effective surface area only account for the filler real surface long-pending 50%, the space between the neighboring concentric circle does not utilize fully, the surface by utilizing rate and the space availability ratio of baffling dish filler are all lower.And because top baffling dish transfixion, its surperficial liquid only flows downward under the gravity effect, receives the influence of capillary effect and baffle surface fineness and liquid film is thicker, and is prone to the formation plume, has influenced the mass transfer effect and the separating power of equipment.
To the deficiency of present distillation operation of rotary packed bed, the present invention proposes fin flow guiding regular packing with filler.
Summary of the invention
The present invention is for the problem of the gas-liquid counter current contact weak effect (not satisfying heat transmission and mass transfer weak effect simultaneously) that solves existing rotary packed bed filler and in distillation operation, exist and a kind of fin flow guiding regular packing that is used for distillation operation of rotary packed bed is provided.
The present invention is realized by following technical scheme; A kind of fin flow guiding regular packing that is used for distillation operation of rotary packed bed comprises disc and lower disc, and last disc is provided with the different tubular baffle upper plate of some diameters; Lower disc is provided with the different tubular chin spoiler of some diameters; Baffle upper plate and the staggered nested arrangement of chin spoiler leave the fluid passage between baffle upper plate and the lower disc, leave the fluid passage between chin spoiler and the last disc; Baffle upper plate is provided with the fin that some oblique belows tilt, and chin spoiler is provided with the oblique fin of some square necks obliquely.
Some deflectors are fixed on the upper and lower disc according to diameter is equidistant from inside to outside; Upper and lower disc is bolted together; Rotation together under the drive of axle; Make and have centrifugal force field in the filler; Liquid phase fluid from inside to outside successively alternately through chin spoiler and baffle upper plate, forms " impulse waveform
" passage along radial direction.Gaseous fluid is then passed through baffle upper plate and chin spoiler along radial direction ecto-entad and liquid phase to replacing successively.Owing to receiving action of centrifugal force to overcome the effect of surface tension of liquid, the liquid film of formation thinner thickness can increase contact area alternate on the deflector, the mass transfer effect of strengthening device to liquid on deflector; Direction of rotation according to the flow direction and the deflector of liquid; At the staggered parallel four limit row fins of deflector installed inside; There are certain angle in fin and deflector, make liquid between adjacent inside and outside two-layer deflector with "
" type path flows.Owing to receive the double action of inertia force and centrifugal force, after liquid flowed out from fin, a part of direct collision made the outside of internal layer deflector wetting to the outside of internal layer deflector, has increased the surface by utilizing rate of alternate contact area and filler; A part directly is thrown on the deflector that fin is installed; Make liquid between adjacent inside and outside two-layer deflector with "
" type path flows; Improved the space availability ratio of filler; Reach and increase alternate contact area; The purpose that prolongs the time of contact of flow through distance and the gas-liquid of liquid in filler has been strengthened the separating effect of equipment; Even some apertures that distribute on fin, aperture is arranged with triangle or parallelogram shape.Liquid is several microns liquid film owing to receiving powerful action of centrifugal force to form thickness; Flow forward and can not be thrown on the deflector that fin is installed along disc through aperture; Increase the alternate contact area on each fin like this, further reached the purpose of the mass transfer effect of strengthening device.The present invention can be used for unit operations such as GAS ABSORPTION, gas desorption, microcosmic mixing and chemical reaction.Also can be applicable to the rotary packed bed aspects such as GAS ABSORPTION, gas desorption, microcosmic mixing and chemical reaction of chemical industry, petrochemical industry, pharmacy, metallurgy, light industry, fiery explosive industry.
Effect of the present invention: the present invention utilizes the fin flow guiding regular packing of rotation; Fluid "
" type with complicacy in cylindric filling space is flowed; The surface by utilizing rate and the space availability ratio of filler are improved; And under the prerequisite that does not change thickness of liquid film; Increase alternate contact area, strengthened vapour, the liquid less turbulence in filler, prolonged fluid flowing through distance and time of contact in filler; Strengthen the mass transfer effect of filler, and then improved the separating power of equipment greatly.Below be the comparison of the present invention and existing filler performance in distillation operation:
Description of drawings
Fig. 1 is an internal structure sketch map of the present invention
Fig. 2 is the structural representation after individual layer fin flow guiding filler of the present invention launches
Fig. 3 is one of an existing product structural representation
Fig. 4 is two structural representations of existing product
Among the figure: the 1-gas-liquid is imported and exported, the last disc of 2-, and the fin that the oblique below of 3-tilts, the 4-baffle upper plate, the 5-lower disc, the 6-chin spoiler, the 7-rotating shaft, 8-is the oblique fin of square neck obliquely, 9-fluid passage, 10-fluid passage, 11-aperture, 12-strength plate
The specific embodiment
Meaning as shown in Figure 1; A kind of fin flow guiding regular packing that is used for distillation operation of rotary packed bed comprises disc 2 and lower disc 5, and last disc 2 is provided with the different tubular baffle upper plate 4 of some diameters; Lower disc 5 is provided with the different tubular chin spoiler 6 of some diameters; Baffle upper plate 4 and chin spoiler 6 staggered nested arrangements leave fluid passage 9 between baffle upper plate 4 and the lower disc 5, leave fluid passage 9 between chin spoiler 6 and the last disc 2; Baffle upper plate 4 is provided with the fin 3 that some oblique belows tilt, and chin spoiler 6 is provided with the oblique fin 8 of some square necks obliquely.
Meaning as shown in Figure 2; The fin 3 that oblique below tilts, the fin 8 that square neck is oblique obliquely are parallelogram; The number of plies of the fin 8 that fin 3 that the oblique below of baffle upper plate 4 tilts and the square neck obliquely on the chin spoiler 6 are oblique is respectively even number (two-layer at least), and wherein two adjacent fins of one deck fin and another layer fin constitute triangle or parallelogram.This structure can make between two adjacent fins of upper strata on the deflector flowing liquid essential through lower floor's fin so that liquid during through each layer fin flow guiding plate filler the distance of process identical.On the baffle upper plate on the incline direction of fin and the chin spoiler incline direction of fin opposite.
Be equipped with some apertures 11 on the fin 3 that tilts below oblique, the fin 8 that square neck is oblique obliquely, adjacent aperture is arranged with triangle or parallelogram shape.Liquid is several microns liquid film owing to receiving powerful action of centrifugal force to form thickness; Flow forward and can not be thrown on the deflector that fin is installed along disc through aperture; Increase alternate contact area on each fin like this, can reach the purpose of the mass transfer effect of strengthening device.
Mounting means is as shown in Figure 2, and upper and lower layer fin is evenly distributed on the deflector by triangle or parallelogram shape, keeps the distance of flow of liquid on each layer fin flow guiding plate to equate.Inside and outside adjacent fins deflector plate between the distance of radial distance and Fig. 4 deflection plate filler can be identical, also can be different, specifically calmly according to separation requirement and treating capacity.Every layer of deflector be provided with according to the route of liquid flow and upper and lower disc between distance; It is fluid flowing passage; Guarantee that liquid can be from inboard one deck filler stream one deck filler laterally, simultaneously gas can be from the outside one deck filler stream one deck filler to the inside, the dividing plate flow phenomenon does not all take place.Be to increase the utilization rate of filling space, between every layer of deflector and last (or down) disc apart from different, specifically carry out designing and calculating according to the identical principle of fluid flow area, should be inversely proportional to the diameter of deflector from inside to outside.
The installation of finned deflector can be through being welded on the corresponding upper and lower disc; Also can be under the prerequisite that guarantees the liquid communication area; Even distribution strength plate 12 (as shown in Figure 2) under baffle upper plate or chin spoiler is nested in finned deflector in the groove of upper and lower disc and fixes.
Claims (3)
1. fin flow guiding regular packing that is used for distillation operation of rotary packed bed; Comprise disc (2) with lower disc (5), it is characterized in that: go up disc (2) and be provided with the different tubular baffle upper plate (4) of some diameters; Lower disc (5) is provided with the different tubular chin spoiler (6) of some diameters; Baffle upper plate (4) and the staggered nested arrangement of chin spoiler (6) leave fluid passage (9) between baffle upper plate (4) and the lower disc (5), leave fluid passage (10) between chin spoiler (6) and the last disc (2); Baffle upper plate (4) is provided with the fin (3) that some oblique belows tilt, and chin spoiler (6) is provided with the oblique fin (8) of some square necks obliquely.
2. the fin flow guiding regular packing that is used for distillation operation of rotary packed bed according to claim 1; It is characterized in that: the fin (3) that oblique below tilts, the fin (8) that square neck is oblique obliquely are parallelogram, and the number of plies of the fin (8) that the fin (3) that the oblique below of baffle upper plate (4) tilts and the square neck obliquely of chin spoiler (6) are oblique is respectively even number.
3. the fin flow guiding regular packing that is used for distillation operation of rotary packed bed according to claim 1 and 2 is characterized in that: be equipped with some apertures on the fin (3) that tilts below oblique, the fin (8) that square neck is oblique obliquely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100555974A CN101342477B (en) | 2008-08-14 | 2008-08-14 | Fin flow guiding regular packing for distillation operation of rotary packed bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100555974A CN101342477B (en) | 2008-08-14 | 2008-08-14 | Fin flow guiding regular packing for distillation operation of rotary packed bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101342477A CN101342477A (en) | 2009-01-14 |
| CN101342477B true CN101342477B (en) | 2012-05-30 |
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|---|---|---|---|
| CN2008100555974A Expired - Fee Related CN101342477B (en) | 2008-08-14 | 2008-08-14 | Fin flow guiding regular packing for distillation operation of rotary packed bed |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648129B (en) * | 2009-08-27 | 2012-01-25 | 中北大学 | Threaded pipe thread spool arranged-type packing |
| CN105642062B (en) * | 2016-03-03 | 2018-06-26 | 中北大学 | The device and method of fine particle in a kind of hypergravity removing gas |
| CN109990372A (en) * | 2019-04-17 | 2019-07-09 | 浙江禾子施能科技有限公司 | A kind of graphene electric heater |
| CN112206698B (en) * | 2020-09-01 | 2022-09-30 | 浙江工业大学 | Baffling type super-gravity rotating bed with integrally rotating rotor |
| CN114682159B (en) * | 2020-12-28 | 2023-02-10 | 北京化工大学 | Liquid self-accelerating multistage hypergravity device and application |
| CN114225450B (en) * | 2021-12-29 | 2023-05-23 | 浙江工业大学 | Integral rotary hypergravity bed |
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Xiuping Inventor after: Liu Youzhi Inventor after: Wang Jianwei Inventor before: Liu Youzhi Inventor before: Li Xiuping Inventor before: Wang Jianwei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU YOUZHI LI XIUPING WANG JIANWEI TO: LI XIUPING LIU YOUZHI WANG JIANWEI |
|
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20200814 |