CN113842869A - Preparation method of absorption tower filler and filler - Google Patents
Preparation method of absorption tower filler and filler Download PDFInfo
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- CN113842869A CN113842869A CN202111125738.7A CN202111125738A CN113842869A CN 113842869 A CN113842869 A CN 113842869A CN 202111125738 A CN202111125738 A CN 202111125738A CN 113842869 A CN113842869 A CN 113842869A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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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
- 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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- 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
- B01J2219/318—Manufacturing aspects
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- Chemical Kinetics & Catalysis (AREA)
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- Thermal Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to the technical field of absorption tower packing, and provides a preparation method of absorption tower packing and packing, wherein the preparation method comprises the following steps: setting parameters of the 3D printing equipment; planning a printed path according to the model slice of the filler; printing the filled matrixes in sequence according to the path; wherein, at least one layer of matrix of the filler is formed with a special-shaped structure which is suitable for increasing the specific surface area and the void ratio of the filler. According to the preparation method of the absorption tower filler, the filler is manufactured by the 3D printing equipment, the filler with a complex shape which is difficult to produce or even impossible to produce in the traditional process can be produced, a die is not needed, processes such as heat treatment and the like are not needed, the manufacturing speed is high, and the production efficiency is favorably improved. Moreover, the special-shaped structure printed on the substrate can increase the specific surface area and the porosity of the filler, so that gas-liquid contact is more sufficient, and the reaction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of absorption tower packing, in particular to a preparation method of absorption tower packing and packing.
Background
The packing is the core of the absorption tower and provides the gas-liquid two-phase contact surface in the tower, and the structure of the packing and the absorption tower determines the performance of the tower. The filler has the advantages of large specific surface, high porosity, good wettability, corrosion resistance, certain mechanical strength, low density, low price and the like. Thus, the gap of the filler can have higher liquid holdup, and the retention time of liquid in the tower can be longer, thereby increasing the contact time of gas phase and liquid phase and improving the mass transfer efficiency of the filler. However, the existing filler is mostly made by the traditional forming process, and needs to be made by means of a mold, so that the process is complex, and the improvement of the production efficiency is not facilitated.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the existing filler in the prior art is mostly prepared by the traditional forming process, the existing filler needs to be prepared by a mold, the process is complex, and the improvement of the production efficiency is not facilitated, so that the preparation method of the filler for the absorption tower and the filler are provided.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the invention provides a preparation method of an absorption tower filler, which comprises the following steps: setting parameters of the 3D printing equipment; planning a printed path according to the model slice of the filler; printing the filled matrixes in sequence according to the path; wherein, at least one layer of matrix of the filler is formed with a special-shaped structure which is suitable for increasing the specific surface area and the void ratio of the filler.
Further, the matrix for printing the filler in sequence according to the model design requirement specifically comprises; and different powder feeders are adopted to feed powder when two adjacent layers of matrixes of the filler are printed.
Further, when setting parameters of the 3D printing equipment; the laser power range is 400W-1000W; the powder feeding speed range is 1 g/min-30 g/min; the scanning speed is 5 mm/s-12 mm/s.
The invention also provides a filler which comprises the matrixes arranged in a laminated mode, wherein the outer surface of at least one layer of the matrix of the filler is provided with the special-shaped structure, and the special-shaped structure is suitable for increasing the specific surface area and the void ratio of the filler.
Further, the materials of two adjacent layers of the base body are different along the axial direction of the base body.
Further, the material of the same layer of the base body is different in the radial direction of the base body.
Further, the material of the substrate is metal or plastic.
Further, the matrix is of a solid structure or a hollow structure.
Further, the special-shaped structures comprise one or more of protrusions of a table-shaped structure, protrusions of a tooth-shaped structure and protrusions of an arc-shaped structure.
The technical scheme of the invention has the following advantages:
according to the preparation method of the absorption tower filler, the filler is manufactured by the 3D printing equipment, the filler with a complex shape which is difficult to produce or even impossible to produce in the traditional process can be produced, a die is not needed, processes such as heat treatment and the like are not needed, the manufacturing speed is high, and the production efficiency is favorably improved. Moreover, the special-shaped structure printed on the substrate can increase the specific surface area and the porosity of the filler, so that gas-liquid contact is more sufficient, and the reaction efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a method for making absorber packing in an embodiment of the present invention;
FIG. 2 is a top view of a packing in accordance with an embodiment of the present invention;
FIG. 3 is a top view of a packing according to yet another embodiment of the present invention;
FIG. 4 is a front view of a packing in accordance with an embodiment of the present invention.
Description of reference numerals:
1. a substrate; 2. and (5) a special-shaped structure.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
FIG. 2 is a top view of a packing in accordance with an embodiment of the present invention; FIG. 3 is a top view of a packing according to yet another embodiment of the present invention; FIG. 4 is a front view of a packing in accordance with an embodiment of the present invention; as shown in fig. 2, 3 and 4, the present embodiment provides a filler, which includes stacked substrates 1, and a special-shaped structure 2 is disposed on an outer surface of at least one of the substrates 1, and is adapted to increase a specific surface area and a void ratio of the filler.
In particular, the substrate 1 may be circular, rectangular, triangular, polygonal or other curved-sided figure. The base body 1 is stacked from bottom to top along the thickness direction of the filler. Wherein, each layer of the matrix 1 can be a solid structure or a hollow structure. Wherein, the outer surfaces of the base body 1 can be provided with the special-shaped structures 2, and the special-shaped structures 2 can be convex or concave.
The filler provided by the invention is manufactured by adopting 3D printing equipment, and compared with the traditional process, the filler is manufactured at a high speed without using a die, performing processes such as heat treatment and the like, and is favorable for improving the production efficiency. Moreover, the special-shaped structure 2 printed on the substrate can increase the specific surface area and the porosity of the filler, so that gas-liquid contact is more sufficient, and the reaction efficiency is improved.
In this embodiment, the material of the substrates 1 in two adjacent layers is different along the axial direction of the substrates 1. For example, two different materials may be used to meet to form different single-layer substrates 1. The special-shaped structure 2 on the substrate 1 and the substrate 1 can be made of the same material or different materials.
In the present embodiment, the material of the same layer of the substrate 1 is different in the radial direction of the substrate 1. The same layer of the substrate 1 sometimes needs to be printed from the inside out gradually, subject to the influence of the width of a single printing. So set up, can be as required nimble raw and other materials to the base member select the collocation, be favorable to improving its comprehensive properties.
In this embodiment, the material of the substrate 1 is metal or plastic or other material that is solid at normal temperature. Wherein, the matrix 1 made of metal has compact, fine and uniform structure, and the performance of the casting is often superior to that of the casting produced by the traditional process. Moreover, the matrix 1 of the metal material can bear high temperature, and the filler is not easy to crack. The base body 1 made of plastic has certain mechanical strength, small density, strong corrosion resistance and low price.
In the present embodiment, the special-shaped structure 2 includes one or more of a projection of a mesa structure, a projection of a tooth structure, and a projection of an arc structure.
FIG. 1 is a flow chart of a method for making absorber packing in an embodiment of the present invention; as shown in fig. 1, this embodiment also provides a method for preparing an absorption tower packing, which includes: setting parameters of the 3D printing equipment; planning a printed path according to the model slice of the filler; the matrix of the filler is printed in sequence according to the path, for example, the matrix can be printed from bottom to top and from inside to outside; wherein, at least one layer of matrix of the filler is formed with a special-shaped structure which is suitable for increasing the specific surface area and the void ratio of the filler.
In this embodiment, the matrix for printing the filler in sequence according to the model design requirement specifically includes; and different powder feeders are adopted to feed powder when two adjacent layers of matrixes of the filler are printed. So set up, can realize that the while of xenogenesis metal powder prints and gradient prints, the base member of printing has clear gradient interface.
In this embodiment, when setting each parameter of the 3D printing apparatus; the laser power range is 400W-1000W; for example, 600W. The powder feeding speed range is 1 g/min-30 g/min; for example, it may be 15 g/min. The scanning speed is 5mm/s to 12mm/s, and may be, for example, 10 mm/s.
In conclusion, the preparation method of the absorption tower filler provided by the invention adopts 3D printing equipment to manufacture the filler, can be used for producing the filler with a complex shape which is difficult to produce or even impossible to produce by the traditional process, does not need to use a die, does not need to carry out processes such as heat treatment and the like, has high manufacturing speed, and is beneficial to improving the production efficiency. Moreover, the special-shaped structure printed on the substrate can increase the specific surface area and the porosity of the filler, so that gas-liquid contact is more sufficient, and the reaction efficiency is improved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A preparation method of an absorption tower packing is characterized by comprising the following steps:
setting parameters of the 3D printing equipment;
planning a printed path according to the model slice of the filler;
printing the filled matrixes in sequence according to the path; wherein, at least one layer of matrix of the filler is formed with a special-shaped structure which is suitable for increasing the specific surface area and the void ratio of the filler.
2. The method for producing a packing for an absorption column according to claim 1,
the matrix for printing the filler in sequence according to the design requirement of the model specifically comprises the following steps;
and different powder feeders are adopted to feed powder when two adjacent layers of matrixes of the filler are printed.
3. The method for producing a packing for an absorption column according to any one of claims 1 to 2,
when setting parameters of the 3D printing equipment;
the laser power range is 400W-1000W;
the powder feeding speed range is 1 g/min-30 g/min;
the scanning speed is 5 mm/s-12 mm/s.
4. A packing, characterized by comprising:
the outer surface of at least one layer of the base body of the filler is provided with a special-shaped structure which is suitable for increasing the specific surface area and the void ratio of the filler.
5. The packing of claim 4,
the materials of two adjacent layers of the base bodies are different along the axial direction of the base bodies.
6. The packing of claim 4,
the material of the same layer of the matrix is different along the radial direction of the matrix.
7. The packing of claim 4,
the base body is made of metal or plastic.
8. The filler according to any one of claims 4-7, characterized in that,
the substrate is of a solid structure or a hollow structure.
9. The filler according to any one of claims 4-7, characterized in that,
the special-shaped structure comprises one or more of a boss-shaped structure, a tooth-shaped structure and an arc-shaped structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111125738.7A CN113842869A (en) | 2021-09-24 | 2021-09-24 | Preparation method of absorption tower filler and filler |
| PCT/CN2022/098821 WO2023045421A1 (en) | 2021-09-24 | 2022-06-15 | Preparation method for absorption tower filler, and filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111125738.7A CN113842869A (en) | 2021-09-24 | 2021-09-24 | Preparation method of absorption tower filler and filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113842869A true CN113842869A (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111125738.7A Pending CN113842869A (en) | 2021-09-24 | 2021-09-24 | Preparation method of absorption tower filler and filler |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113842869A (en) |
| WO (1) | WO2023045421A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045421A1 (en) * | 2021-09-24 | 2023-03-30 | 中国华能集团清洁能源技术研究院有限公司 | Preparation method for absorption tower filler, and filler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034361A (en) * | 2015-06-15 | 2015-11-11 | 清华大学 | Honeycomb core sandwich and preparation method thereof |
| EP3225304A1 (en) * | 2016-03-31 | 2017-10-04 | Hirschberg Engineering | Contactor |
| CN108656556B (en) * | 2018-05-22 | 2020-04-10 | 中北大学 | 3D printing method of structured packing for super-gravity rotating bed with constant channel |
| CN209205313U (en) * | 2018-09-30 | 2019-08-06 | 绍兴贝斯美化工股份有限公司 | Condensation reaction tower existing for a kind of filler |
| CN113842869A (en) * | 2021-09-24 | 2021-12-28 | 中国华能集团清洁能源技术研究院有限公司 | Preparation method of absorption tower filler and filler |
-
2021
- 2021-09-24 CN CN202111125738.7A patent/CN113842869A/en active Pending
-
2022
- 2022-06-15 WO PCT/CN2022/098821 patent/WO2023045421A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045421A1 (en) * | 2021-09-24 | 2023-03-30 | 中国华能集团清洁能源技术研究院有限公司 | Preparation method for absorption tower filler, and filler |
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| Publication number | Publication date |
|---|---|
| WO2023045421A1 (en) | 2023-03-30 |
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