CN111389341A - Reducing straight-tube type filler - Google Patents
Reducing straight-tube type filler Download PDFInfo
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- CN111389341A CN111389341A CN202010399569.5A CN202010399569A CN111389341A CN 111389341 A CN111389341 A CN 111389341A CN 202010399569 A CN202010399569 A CN 202010399569A CN 111389341 A CN111389341 A CN 111389341A
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- tongue blade
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- lower layer
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- 239000000945 filler Substances 0.000 title abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims description 41
- 239000007788 liquid Substances 0.000 abstract description 14
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000011800 void material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/30—Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/30—Details relating to random packing elements
- B01J2219/302—Basic shape of the elements
- B01J2219/30296—Other shapes
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to a variable-diameter straight-tube type filler which is integrally formed by an upper layer of a rotary tongue blade, a dislocation transmission layer and a lower layer of the rotary tongue blade, wherein the upper layer of the rotary tongue blade and the lower layer of the rotary tongue blade are both formed by straight-tube fenestrations, the dislocation transmission layer is a variable-diameter tube enclosed by arc-shaped curved surfaces, and a support column penetrates through the upper layer of the rotary tongue blade, the dislocation transmission layer and the lower layer of the rotary tongue blade along an axis in order to form an arc-shaped transition section for connecting the upper layer of the rotary tongue blade and the lower layer of the rotary tongue blade; the upper layer of the rotary tongue blade and the lower layer of the rotary tongue blade are tongue blade layers with opposite rotation directions, and the tongue blades on each layer are uniformly distributed on a circumference and are intersected at the center of the supporting column; the staggered transmission layer is evenly provided with arc-shaped window holes along the circumferential direction, the thin walls at the arc-shaped window holes are inwards bent along the axial direction to form inwards bent arc sheets, one ends of the inwards bent arc sheets are connected with the upper edges of the arc-shaped window holes, and the other ends of the inwards bent arc sheets are crossed with the supporting columns. The invention adopts the reducing straight cylinder structure, has large void ratio and low pressure drop, and can effectively improve the uneven gas-liquid distribution caused by the phenomena of cavities and bridges.
Description
Technical Field
The invention relates to a filler applied to a filler tower, in particular to a reducing straight-tube type filler.
Background
The packed tower is a mass transfer device commonly used in chemical production, and the packing is an indispensable part of the packed tower. In the packed tower, liquid is from top to bottom, gas is from bottom to top, and the liquid and the gas are contacted at the packing position for mass transfer. The common fillers in the prior art comprise pall ring fillers and square saddle-shaped fillers, and the two fillers have the following defects:
pall ring packing and disadvantages:
pall ring packing, one of the common packing, is shown in fig. 7. The pall ring packing is formed by forming one or two layers of rectangular small holes on the side wall, and the base material of the small holes does not break away from the side wall but forms inward bent blades. Although the pall ring packing is provided with holes on the side wall, the pall ring packing has the excellent characteristics of large flux and small resistance. However, there is a disadvantage that when packing is packed in a packed column, line contact is easily formed between the packing and the packing, and thus when liquid flows down along the packing layer, there is a tendency that the liquid gradually concentrates toward the column wall, so that the liquid flow rate near the column wall gradually increases, and thus a wall flow phenomenon often occurs.
Rectangular saddle packing and disadvantages:
another common packing is a rectangular saddle packing as shown in fig. 8. The rectangular saddle-shaped filler is processed by adopting a continuous extrusion process, the surface of the rectangular saddle-shaped filler is completely open, fluid can flow on the two side surfaces of the filler, the surface utilization rate is high, and the surface flow channel is arc-shaped, so that the fluid resistance is small. However, if two adjacent fillers are back-to-back, a larger gap is formed between the two fillers, i.e., a bridging phenomenon occurs, so that the gas and the liquid are in the filler, the contact area is small, and the mass transfer efficiency is low.
Practice has shown that without good packing, packed columns can not even operate normally. The effect of maldistribution on efficiency is particularly severe where the diameter of the column to packing is very large (>40) and very small (<10) in diameter. If a packed tower is required to maintain high production efficiency, it is necessary to design a packing which can reduce the generation of bridging phenomenon, improve the load bearing capacity of the packing during working production and reduce the wall flow phenomenon.
Disclosure of Invention
The invention aims to provide a reducing straight-cylinder type filler, which is used for solving the problems of bridging and wall flow of the filler in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the variable-diameter straight-tube type packing is formed by integrating an upper rotating tongue blade layer, a staggered transmission layer and a lower rotating tongue blade layer, wherein the upper rotating tongue blade layer and the lower rotating tongue blade layer are formed by straight-tube window openings, the staggered transmission layer is a variable-diameter tube enclosed by arc-shaped curved surfaces, and a support column penetrates through the upper rotating tongue blade layer, the staggered transmission layer and the lower rotating tongue blade layer along an axis in order to form an arc-shaped transition section for connecting the upper rotating tongue blade layer and the lower rotating tongue blade layer; the upper layer of the rotary tongue blade and the lower layer of the rotary tongue blade are tongue blade layers with opposite rotation directions, and the tongue blades on each layer are uniformly distributed on a circumference and are intersected at the center of the supporting column; the staggered transmission layer is evenly provided with arc-shaped window holes along the circumferential direction, the thin walls at the arc-shaped window holes are inwards bent along the axial direction to form inwards bent arc sheets, one ends of the inwards bent arc sheets are connected with the upper edges of the arc-shaped window holes, and the other ends of the inwards bent arc sheets are crossed with the supporting columns.
In the scheme, the upper layer window hole of the rotary tongue blade is an upper layer window hole, the lower layer window hole of the rotary tongue blade is a lower layer window hole, and the upper layer window hole and the lower layer window hole are arranged in a staggered mode.
In the scheme, the height of a straight cylinder on the upper layer of the rotary tongue blade is equal to that of a straight cylinder on the lower layer of the rotary tongue blade, and the diameter of the straight cylinder on the upper layer of the rotary tongue blade is larger than that of the straight cylinder on the lower layer of the rotary tongue blade; the upper layer of window holes and the lower layer of window holes are equal in height and number.
In the scheme, 4 upper-layer window holes are formed in the upper layer of the rotary tongue blade, and the thin wall at each upper-layer window hole is inwards bent along the direction vertical to the axis to form an upper-layer tongue blade; the lower layer of the rotary tongue blade is provided with 4 lower layer window holes, and the thin wall at each lower layer window hole is inwards bent along the direction vertical to the axis to form 4 lower layer tongue blades.
In the scheme, the staggered mass transfer layer is provided with 8 arc-shaped window holes.
The invention has the following beneficial effects:
1. the pall ring packing and the rectangular saddle packing are combined, the designed variable-diameter straight cylinder structure effectively combines the advantages of the pall ring packing and the rectangular saddle packing through demonstration, window holes are formed in the upper straight cylinder and the lower straight cylinder, and a window hole is also formed in the middle arc transition section, so that the void ratio of the packing is further increased, and meanwhile, in order to prevent the situation that gas and liquid cannot be fully contacted due to overlarge gap between the window holes and the middle arc transition section, the mass transfer efficiency is reduced, tongue blades, arc blades and supporting columns are designed in the structure.
2. The invention adopts the reducing structure to reduce the phenomenon of efficiency reduction of the packed tower caused by the bridging phenomenon, namely the filler is scattered in the packed tower, the bridging phenomenon is not easy to occur, and the middle arc structure not only can ensure the void ratio of the filler, but also can improve the distribution performance of gas and liquid.
3. The invention has the advantages that the tongue blade and the arc sheet are fixed by adding the supporting columns, the vibration of the tongue blade and the arc sheet during the operation of the filler is effectively prevented, the strength of the filler is enhanced, the service life is prolonged, the economic principle is met, and the practical production significance is realized.
Drawings
Fig. 1 is a schematic three-dimensional structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a bottom view of the present invention.
Fig. 5 is a sectional view B-B in fig. 2.
Fig. 6 is a sectional view a-a in fig. 3.
FIG. 7 is a schematic diagram of a prior art pall ring packing.
Fig. 8 is a schematic structural diagram of a rectangular saddle-shaped packing in the prior art.
In the figure: 1-upper layer of rotating tongue blade, 2-dislocation transmission layer, 3-lower layer of rotating tongue blade, 4-support column, 101-upper layer window hole, 102-upper layer tongue blade, 201-arc window hole, 202-inward-bent arc sheet, 301-lower layer window hole and 302-lower layer tongue blade.
Detailed Description
The invention is further described with reference to the accompanying drawings in which:
as shown in the combined drawings of fig. 1-6, the reducing straight-tube type packing adopts a double-layer tongue blade layer structure, the pall ring packing and the rectangular saddle packing are combined in an excellent structure, the upper and lower layers are tongue blade layers with opposite rotation directions, and the tongue blades of each layer are uniformly distributed on a circumference and are intersected at the center of the supporting column. The method specifically comprises the following steps: the variable-diameter straight-tube type packing is formed by integrating a rotary tongue blade upper layer 1, a dislocation transmission layer 2 and a rotary tongue blade lower layer 3, wherein the rotary tongue blade upper layer 1 and the rotary tongue blade lower layer 3 are formed by straight-tube window holes, the window hole formed in the rotary tongue blade upper layer 1 is an upper-layer window hole 101, the window hole formed in the rotary tongue blade lower layer 3 is a lower-layer window hole 301, the upper-layer window hole 101 and the lower-layer window hole 301 are arranged in a staggered mode, and the formed window holes are staggered with the upper layer, so that the mass transfer efficiency is improved. The dislocation transmission layer 2 is a reducer cylinder formed by enclosing of arc-shaped curved surfaces, and is an arc-shaped transition section for connecting the upper layer 1 of the rotary tongue blade and the lower layer 3 of the rotary tongue blade, the arc-shaped transition section is of an arc-shaped reducing structure, when loads are arranged on the structure, the distribution of gas and liquid can be improved through the arc-shaped reducing structure, and the wall flow trend is changed accordingly. The support column 4 penetrates through the upper rotating tongue blade layer 1, the staggered transmission layer 2 and the lower rotating tongue blade layer 3 along the axis. The upper layer 1 of the rotary tongue blade and the lower layer 3 of the rotary tongue blade are tongue blade layers with opposite rotation directions, the tongue blades on each layer are uniformly distributed on a circumference, the tongue blades on each window hole are bent inwards and point to the center of the ring, and are converged at the center of the support column 4, and the tongue blades can well concentrate and redistribute gas and liquid; dislocation transmission layer 2 evenly opens arc fenestra 201 along circumference, arc fenestra 201 department thin wall is along axis direction incurve formation incurve arc piece 202, incurve arc piece 202 one end links to each other with arc fenestra 201 is gone up along, the incurve arc piece 202 other end crosses in support column 4, incurve arc piece 202 is the arch, prevent that the gas-liquid from piling up here, adopt the arc changeover portion to be the unequal condition of outer footpath about the better adaptation, prevent stress concentration's phenomenon, the mass transfer area of contact that also has more than straight type connection simultaneously.
In the embodiment, the height of the straight cylinder of the upper layer 1 of the rotary tongue blade is equal to that of the lower layer 3 of the rotary tongue blade, the diameter of the straight cylinder of the upper layer 1 of the rotary tongue blade is larger than that of the straight cylinder of the lower layer 3 of the rotary tongue blade, the bridging phenomenon can be effectively prevented by adopting the different outer diameters of the upper layer and the lower layer, and the straight edge sections are adopted on the upper layer and the lower layer, so that the pressure bearing of the arc transition section during working is effectively improved; the upper window holes 101 are equal in height and number to the lower window holes 301, but the length of the upper window holes 101 is longer than that of the lower window holes 301. As shown in figure 1, the upper layer is a revolving tongue blade upper layer 1 formed by a revolving body, the middle layer is a dislocation transmission layer 2 enclosed by arc-shaped curved surfaces, the lower layer is a revolving tongue blade lower layer 3 with the radius smaller than that of the upper layer and the height equal to that of the revolving body, and a cylindrical support column 4 is arranged on the axis of the three layers.
The gas phase and the liquid phase are uniformly distributed in the filler, the working efficiency of the filler tower is high, and if the gas phase and the liquid phase are uniformly distributed all the time, the high mass transfer efficiency of the filler can be ensured. The invention adopts the reducing straight cylinder structure, which can effectively improve the uneven gas-liquid distribution caused by the bridging phenomenon; the tongue blade layers with opposite rotation directions and the inner curved arc pieces 202 are arranged up and down, so that the concentration and redistribution of gas and liquid are realized; the arc transition section is arranged to reduce stress concentration, improve a stress structure and prolong the service cycle; the supporting column 4 is used for connecting the whole filler, so that the mass transfer process is more stable.
In the embodiment, the upper layer 1 of the rotary tongue blade is provided with 4 upper layer window holes 101 at equal intervals on the circumference, 4 thin walls at the upper layer window holes 101 are inwards bent along the direction vertical to the axis to form 4 upper layer tongue blades 102, the lower layer of the rotary tongue blade is provided with 4 lower layer window holes 301 with the same width and different length as the upper layer window holes 101 at equal intervals on the circumference, the thin walls at the lower layer window holes 301 are also inwards bent along the direction vertical to the axis to form 4 lower layer tongue blades 302, and the upper layer tongue blades 102 and the lower layer tongue blades 302 are all intersected with the middle support column 4.
Referring to fig. 5 and 6 in combination with fig. 2, the dislocation transmission layer 2 is provided with 8 arc windows 201 on its circumference, and the thin wall is bent inward along the axial direction to form inward-bent arc pieces 202, and they meet the supporting pillars 4.
According to actual production conditions, the packing with a good structure is not available, so that a liquid phase from top to bottom and a gas phase from bottom to top are unevenly distributed in the packed tower, the contact area is small, and the efficiency of the packed tower is greatly influenced. If the packed tower is required to maintain high-efficiency production, the defects of the pall ring and the rectangular saddle packing in the prior art are overcome, and therefore the invention designs the packing which can reduce the bridging phenomenon, improve the load bearing of the packing in the working production and reduce the wall flow phenomenon.
Claims (5)
1. The variable-diameter straight-cylinder type packing is characterized in that: the variable-diameter straight-tube type packing is formed by integrating an upper rotating tongue blade layer (1), a dislocation transmission layer (2) and a lower rotating tongue blade layer (3), wherein the upper rotating tongue blade layer (1) and the lower rotating tongue blade layer (3) are formed by straight-tube window openings, the dislocation transmission layer (2) is a variable-diameter tube enclosed by arc-shaped curved surfaces, and a support column (4) penetrates through the upper rotating tongue blade layer (1), the dislocation transmission layer (2) and the lower rotating tongue blade layer (3) along the axis in order to form an arc-shaped transition section for connecting the upper rotating tongue blade layer (1) and the lower rotating tongue blade layer (3); the upper layer (1) of the rotary tongue blade and the lower layer (3) of the rotary tongue blade are tongue blade layers with opposite rotation directions, and the tongue blades on each layer are uniformly distributed on a circumference and are intersected at the center of the support column (4); the staggered transmission layer (2) is uniformly provided with arc-shaped window holes (201) along the circumferential direction, the thin walls at the arc-shaped window holes (201) are inwards bent along the axial direction to form inner bent arc sheets (202), one ends of the inner bent arc sheets (202) are connected with the upper edges of the arc-shaped window holes (201), and the other ends of the inner bent arc sheets (202) are intersected with the supporting columns (4).
2. The variable diameter straight barrel type packing according to claim 1, wherein: the upper layer (1) of the rotary tongue blade is provided with an upper layer window hole (101), the lower layer (3) of the rotary tongue blade is provided with a lower layer window hole (301), and the upper layer window hole (101) and the lower layer window hole (301) are arranged in a staggered mode.
3. The variable diameter straight barrel type packing according to claim 2, wherein: the straight cylinder of the upper layer (1) of the rotary tongue blade is equal to the straight cylinder of the lower layer (3) of the rotary tongue blade in height, and the diameter of the straight cylinder of the upper layer (1) of the rotary tongue blade is larger than that of the straight cylinder of the lower layer (3) of the rotary tongue blade; the upper layer window holes (101) and the lower layer window holes (301) are equal in height and number.
4. The variable diameter straight barrel type packing according to claim 3, wherein: the upper layer (1) of the rotary tongue blade is provided with 4 upper layer window holes (101), and the thin wall of each upper layer window hole (101) is inwards bent along the direction vertical to the axis to form an upper layer tongue blade (102); the lower layer (3) of the rotary tongue blade is provided with 4 lower layer window holes (301), and the thin wall at each lower layer window hole (301) is inwards bent along the direction vertical to the axis to form 4 lower layer tongue blades (302).
5. The variable diameter straight barrel type packing according to claim 4, wherein: the dislocation transmission layer is provided with 8 arc-shaped window holes (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399569.5A CN111389341A (en) | 2020-05-12 | 2020-05-12 | Reducing straight-tube type filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399569.5A CN111389341A (en) | 2020-05-12 | 2020-05-12 | Reducing straight-tube type filler |
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| Publication Number | Publication Date |
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| CN111389341A true CN111389341A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010399569.5A Pending CN111389341A (en) | 2020-05-12 | 2020-05-12 | Reducing straight-tube type filler |
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| Country | Link |
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| CN (1) | CN111389341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717871A (en) * | 2021-01-26 | 2021-04-30 | 东北石油大学 | Y-shaped double-lingual-lamina side-hole annular intalox saddle filler |
| CN112774618A (en) * | 2021-01-26 | 2021-05-11 | 东北石油大学 | Staggered inner-extending tongue blade annular intalox saddle packing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2495640Y (en) * | 2001-04-30 | 2002-06-19 | 上海大学 | Compact sewage treatment equipment |
| CN204170732U (en) * | 2014-10-27 | 2015-02-25 | 海盐新世纪石化设备有限公司 | Constitutionally stable metal step ring filler |
| CN205650205U (en) * | 2016-03-10 | 2016-10-19 | 山西朔神新材料科技有限公司 | Bauer ring type ceramic packing |
| CN205797227U (en) * | 2016-03-10 | 2016-12-14 | 山西朔神新材料科技有限公司 | A kind of ceramic packing ring |
| WO2018094563A1 (en) * | 2016-11-22 | 2018-05-31 | 南通苏通分离工程科技有限公司 | Saddle ring filler |
| CN212092304U (en) * | 2020-05-12 | 2020-12-08 | 东北石油大学 | Reducing straight-tube type filler |
-
2020
- 2020-05-12 CN CN202010399569.5A patent/CN111389341A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2495640Y (en) * | 2001-04-30 | 2002-06-19 | 上海大学 | Compact sewage treatment equipment |
| CN204170732U (en) * | 2014-10-27 | 2015-02-25 | 海盐新世纪石化设备有限公司 | Constitutionally stable metal step ring filler |
| CN205650205U (en) * | 2016-03-10 | 2016-10-19 | 山西朔神新材料科技有限公司 | Bauer ring type ceramic packing |
| CN205797227U (en) * | 2016-03-10 | 2016-12-14 | 山西朔神新材料科技有限公司 | A kind of ceramic packing ring |
| WO2018094563A1 (en) * | 2016-11-22 | 2018-05-31 | 南通苏通分离工程科技有限公司 | Saddle ring filler |
| CN212092304U (en) * | 2020-05-12 | 2020-12-08 | 东北石油大学 | Reducing straight-tube type filler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717871A (en) * | 2021-01-26 | 2021-04-30 | 东北石油大学 | Y-shaped double-lingual-lamina side-hole annular intalox saddle filler |
| CN112774618A (en) * | 2021-01-26 | 2021-05-11 | 东北石油大学 | Staggered inner-extending tongue blade annular intalox saddle packing |
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