CN107899533B - Bulk packing - Google Patents
Bulk packing Download PDFInfo
- Publication number
- CN107899533B CN107899533B CN201711423834.3A CN201711423834A CN107899533B CN 107899533 B CN107899533 B CN 107899533B CN 201711423834 A CN201711423834 A CN 201711423834A CN 107899533 B CN107899533 B CN 107899533B
- Authority
- CN
- China
- Prior art keywords
- mobius
- curved surface
- point
- circle
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012856 packing Methods 0.000 title abstract description 27
- 239000000945 filler Substances 0.000 claims abstract description 15
- 230000008719 thickening Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 10
- 239000011800 void material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- 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 the field of filler, in particular to a bulk filler, which comprises a first mobius strip and a second mobius strip which are fixedly connected; the first Mobius band is formed by thickening a first Mobius curved surface, the second Mobius band is formed by thickening a second Mobius curved surface, and the first Mobius curved surface and the second Mobius curved surface are mutually geometric mirror images; the first mobius strip and the second mobius strip are fixedly connected according to a certain shape and position. The bulk packing has the advantages of high surface utilization rate, high mass transfer efficiency, good gas-liquid flow condition, small pressure drop, high film forming property, high strength and good mechanical property.
Description
Technical Field
The invention relates to the field of filler, in particular to a bulk filler.
Background
The packing is the core internals of the packed column, which provides a surface for mass transfer and heat exchange by gas-liquid two phase contact, and determines the performance of the packed column in combination with other internals within the packed column. The packing can be generally divided into two major types, namely, bulk packing and structured packing, wherein the bulk packing is mainly arranged in a random pile, the existing bulk packing can be mainly divided into a ring shape, a saddle shape and a ring saddle shape according to the shape, and the shape and the specification of the bulk packing determine the pressure drop, the flux, the mass transfer efficiency, the strength, the mechanical property and the like. The pall ring packing is an open-pore annular packing with the same height and diameter, rectangular hole windows are arranged on the side surfaces of the pall ring packing, each hole window is provided with a tongue blade bent towards the ring center, and the packing has the following defects: (1) low strength and poor mechanical properties; (2) The mutual contact of the fillers is mainly linear contact when the fillers are piled up, the void ratio is small and discontinuous, so that the pressure drop is large, the resistance of the gas passing through the filler layer is large, the film forming property is poor, and the mass transfer efficiency is low. The saddle-shaped packing material is similar to saddle-shaped, the packing material layer has mainly arc-shaped liquid passage, the void ratio in the packing material layer is continuous compared with the annular packing material, and the gas flows upwards mainly along the arc-shaped passage, so that the gas-liquid flow condition is good, but because adjacent saddle-shaped packing materials are easy to generate phenomena of nesting and overhead, a part of packing material surface cannot be wetted, namely, the packing material surface cannot be an effective mass transfer surface, and the mass transfer efficiency is low. In order to improve the performance of the bulk filling, measures such as hole opening on the wall, internal structure, avoiding flat surface, designing flanging and the like are generally adopted at present, but the effect is still poor. In addition, the existing bulk packing generally has the problem of low surface utilization rate, so that the mass transfer efficiency of the existing bulk packing is low.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides a bulk packing which solves the defects of low surface utilization rate, low mass transfer efficiency, poor gas-liquid flow condition, large pressure drop and poor film forming property of the existing bulk packing, and has high strength and good mechanical property.
The technical problems to be solved by the invention are realized by adopting the following technical scheme: a bulk filler comprising a first mobius strip and a second mobius strip fixedly connected; the first Mobius band is formed by thickening a first Mobius curved surface, the second Mobius band is formed by thickening a second Mobius curved surface, the first Mobius curved surface and the second Mobius curved surface are geometric mirror images, and Gaussian curvature of any point on the first Mobius curved surface is zero; the first mobius curved surface is provided with a first central circle which is equally divided into widths, the second mobius curved surface is provided with a second central circle which is equally divided into widths, the plane in which the first central circle is positioned and the plane in which the second central circle is positioned are mutually perpendicular, and the first central circle and the second central circle are concentric; the first center circle is provided with a unique point A, and is positioned in the tangent plane of the first Mobius curved surface at the point A; the second center circle is provided with a unique point B, and is positioned in the tangent plane of the second Mobius curved surface at the point B; the point A is on the second center circle and the point B is on the first center circle, and the distance between the point A and the point B is the diameter of the first center circle.
The technical scheme of the invention is as follows: the perimeter of the first center circle is nine times the width of the first mobius curve. The larger the multiple, the more likely it is for the occurrence of seizing and foaming, and the smaller the specific surface area (total surface area of the filler piled up per unit space) is, resulting in a decrease in mass transfer efficiency. The smaller the multiple, the easier the liquid stagnation and blockage occur, and the void fraction and flux are reduced, the pressure drop is increased, resulting in reduced mass transfer efficiency.
Compared with the prior art, the bulk filling material has the beneficial effects that: (1) The characteristics of a single-side curved surface of the Mobius belt are utilized, so that the surface utilization rate is high, and the mass transfer efficiency is high; (2) The filler layer is mainly an arc-shaped channel, so that the gas-liquid flow condition is good and the film forming property is good; (3) The first Mobius band and the second Mobius band are connected according to a certain shape and position, the structure is not easy to generate the phenomena of nesting and overhead, and the mass transfer efficiency is high; (4) The packing is mainly in point contact during stacking, so that the pressure drop is small, and the mass transfer efficiency is high; (5) The joint of the first Mobius band and the second Mobius band forms a reinforcing structure, and the reinforcing structure is manufactured without holes, internal structures and flanging on the wall, and has high strength and good mechanical property.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present invention.
Fig. 2 is a front view of a first embodiment of the present invention.
Fig. 3 is a left side view of a first embodiment of the present invention.
Fig. 4 is a top view of a first embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a first mobius curved surface and a second mobius curved surface according to an embodiment of the present invention.
Fig. 6 is a perspective view of a second embodiment of the present invention.
Fig. 7 is a perspective view of a third embodiment of the present invention.
In the figure: 1. the first Mobius band, the second Mobius band, the first Mobius curved surface, the second Mobius curved surface, the first center circle, the second center circle, the points A,8 and B.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the following description of the specific embodiments of the present invention will be given with reference to the accompanying drawings.
In a first embodiment of the invention shown in fig. 1-5, a bulk filler is shown comprising a first mobius strip 1 and a second mobius strip 2 fixedly connected.
The first Mobius strip 1 is formed by thickening a first Mobius curved surface 3, the second Mobius strip 2 is formed by thickening a second Mobius curved surface 4, the first Mobius curved surface 3 and the second Mobius curved surface 4 are geometrical mirror images, and Gaussian curvature of any point on the first Mobius curved surface 3 is zero. It can be seen that the curves in the width direction on the first mobius curved surface 3 and the second mobius curved surface 4 are straight line segments.
The first mobius curved surface 3 is provided with a first center circle 5 which is equal to the width of the first mobius curved surface, and the first center circle 5 is a plane circle curve on the first mobius curved surface 3; the second mobius curved surface 4 is provided with a second center circle 6 which is equal to the width of the second mobius curved surface, and the second center circle 6 is a plane circle curve on the second mobius curved surface 4. The plane in which the first center circle 5 is located and the plane in which the second center circle 6 is located are perpendicular to each other, and the first center circle 5 is concentric with the second center circle 6.
The first center circle is provided with a unique point A7, and the first center circle 5 is positioned in the tangent plane of the first Mobius curved surface 3 at the point A7; the second center circle 6 is provided with a unique point B8, and the second center circle 6 is positioned in the tangent plane of the second Mobius curved surface 4 at the point B8; the point A7 is on the second central circle 6 and the point B8 is on the first central circle 5, the distance of the point A7 from the point B8 being the diameter of the first central circle 5.
The perimeter of the first center circle 5 is nine times the width of the first mobius curve 3.
The bulk filling material of the invention is not suitable for brittle materials and can be manufactured in an injection molding mode.
Fig. 6 shows a second embodiment of the present invention, which differs from the first embodiment in that the circumference of the first center circle 5 is five times the width of the first mobius curved surface 3. As can be seen from fig. 6, the bulk packing of the second embodiment is prone to hysteresis and blockage, and has small void ratio and flux, large pressure drop and low mass transfer efficiency.
Fig. 7 shows a third embodiment of the present invention, in which the circumference of the first center circle 5 is fifteen times the width of the first mobius curved surface 3, unlike the first embodiment. As can be seen from fig. 7, the bulk filler of the third embodiment is liable to be embedded and foamed, and has a small specific surface area (total surface area of the filler stacked per unit space) and low mass transfer efficiency.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (2)
1. A bulk filler characterized by: comprises a first Mobius band (1) and a second Mobius band (2) which are fixedly connected; the first Mobius band (1) is formed by thickening a first Mobius curved surface (3), the second Mobius band (2) is formed by thickening a second Mobius curved surface (4), the first Mobius curved surface (3) and the second Mobius curved surface (4) are geometrical mirror images, and the Gaussian curvature of any point on the first Mobius curved surface (3) is zero; the first mobius curved surface (3) is provided with a first central circle (5) which is used for equally dividing the width of the first mobius curved surface, the second mobius curved surface (4) is provided with a second central circle (6) which is used for equally dividing the width of the second mobius curved surface, the plane of the first central circle (5) and the plane of the second central circle (6) are perpendicular to each other, and the first central circle (5) and the second central circle (6) are concentric; the first center circle (5) is provided with a unique point A (7), and the first center circle (5) is positioned in the tangent plane of the first Mobius curved surface (3) at the point A (7); the second center circle (6) is provided with a unique point B (8), and the second center circle (6) is positioned in the tangent plane of the second Mobius curved surface (4) at the point B (8); the point A (7) is on the second central circle (6) and the point B (8) is on the first central circle (5), and the distance between the point A (7) and the point B (8) is the diameter of the first central circle (5).
2. The bulk filler of claim 1, wherein: the circumference of the first center circle (5) is nine times of the width of the first Mobius curve surface (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711423834.3A CN107899533B (en) | 2017-12-25 | 2017-12-25 | Bulk packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711423834.3A CN107899533B (en) | 2017-12-25 | 2017-12-25 | Bulk packing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107899533A CN107899533A (en) | 2018-04-13 |
| CN107899533B true CN107899533B (en) | 2024-02-13 |
Family
ID=61871242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711423834.3A Active CN107899533B (en) | 2017-12-25 | 2017-12-25 | Bulk packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107899533B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1579545A1 (en) * | 1983-07-13 | 1990-07-23 | Могилевский Машиностроительный Институт | Triturator-mixer |
| CN101367032A (en) * | 2008-09-05 | 2009-02-18 | 北京泽华化学工程有限公司 | Multi-step ring bulk loading filling material |
| WO2009121835A1 (en) * | 2008-03-29 | 2009-10-08 | Quadbeck-Seeger Hans-Juergen | Use of three-dimensional bodies with non-orientable surfaces |
| CN205078702U (en) * | 2015-10-10 | 2016-03-09 | 赵卫强 | Mo biwusi hold -in range |
| CN206381663U (en) * | 2016-09-19 | 2017-08-08 | 徐世民 | A kind of band rectangular saddle ring shape curved bend chip regular corrugation filler |
| CN207722804U (en) * | 2017-12-25 | 2018-08-14 | 山东凯斯达机械制造有限公司 | A kind of dumped packing |
-
2017
- 2017-12-25 CN CN201711423834.3A patent/CN107899533B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1579545A1 (en) * | 1983-07-13 | 1990-07-23 | Могилевский Машиностроительный Институт | Triturator-mixer |
| WO2009121835A1 (en) * | 2008-03-29 | 2009-10-08 | Quadbeck-Seeger Hans-Juergen | Use of three-dimensional bodies with non-orientable surfaces |
| CN101367032A (en) * | 2008-09-05 | 2009-02-18 | 北京泽华化学工程有限公司 | Multi-step ring bulk loading filling material |
| CN205078702U (en) * | 2015-10-10 | 2016-03-09 | 赵卫强 | Mo biwusi hold -in range |
| CN206381663U (en) * | 2016-09-19 | 2017-08-08 | 徐世民 | A kind of band rectangular saddle ring shape curved bend chip regular corrugation filler |
| CN207722804U (en) * | 2017-12-25 | 2018-08-14 | 山东凯斯达机械制造有限公司 | A kind of dumped packing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107899533A (en) | 2018-04-13 |
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