CN111135598B - Liquid descending buffer device of multi-downcomer tower tray - Google Patents
Liquid descending buffer device of multi-downcomer tower tray Download PDFInfo
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- CN111135598B CN111135598B CN202010028683.7A CN202010028683A CN111135598B CN 111135598 B CN111135598 B CN 111135598B CN 202010028683 A CN202010028683 A CN 202010028683A CN 111135598 B CN111135598 B CN 111135598B
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- liquid
- plates
- downcomer
- side baffle
- impingement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
- B01D3/20—Bubble caps; Risers for vapour; Discharge pipes for liquid
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- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to a multi-downcomer tray, in particular to a downcomer buffer device of a multi-downcomer tray. The baffle plate comprises a first side baffle plate, a second side baffle plate, a middle connecting plate and an impingement baffle plate, wherein the first side baffle plate and the second side baffle plate are welded into a whole through four middle connecting plates which are arranged in parallel, and the four middle connecting plates are respectively positioned at four corners of the first side baffle plate and the second side baffle plate; a plurality of impingement plates are arranged between the first side baffle and the second side baffle, the impingement plates are sequentially distributed from the first side baffle to the second side baffle, and two ends of the impingement plates are respectively welded on the two middle connecting plates; the plurality of impingement plates are obliquely arranged, and the inclination directions of two adjacent impingement plates are opposite; and a plurality of liquid descending holes are formed in the impingement plate. According to the invention, through the arrangement of the impingement baffle and the liquid descending hole, the impact of liquid in the liquid descending pipe on the bubble structure on the liquid receiving disc can be reduced, and the arrangement of the liquid descending buffer device does not influence the liquid separation treatment efficiency of the whole tower.
Description
Technical Field
The invention relates to a multi-downcomer tray, in particular to a downcomer buffer device of a multi-downcomer tray.
Background
In industries such as oil refining, chemical engineering, petrochemical engineering, and light industry, a large number of towers are used to separate products such as mixtures to high purity or to remove harmful substances in gases and water to protect the environment. With the rapid development of petroleum and chemical industries, energy sources are becoming increasingly short, equipment is becoming larger in size, energy is continuously increased, the treatment capacity and effect of a tower are improved, and energy consumption is reduced, so that the mainstream of the development of the current tower is becoming.
Multiple downcomer trays have been used in chemical towers. The multiple downcomer trays suspend the downcomer in the gas phase space, the bottom of the downcomer is provided with a bottom plate, a bottom hole is arranged on the bottom plate for liquid to flow from the upper layer of tray to the lower layer of tray, and a liquid receiving disc right below the bottom hole of the downcomer is provided with a bubbling structure. The larger the bubbling structure area on the liquid receiving tray, the larger the processing capacity of the tray. However, in the use process, the liquid falls from the bottom hole of the downcomer to the liquid receiving disc, a downward impact force is applied to the bubbling structure of the liquid receiving disc, and impact liquid leakage is caused, so that part of the liquid cannot be in full contact with gas for mass transfer, and the separation efficiency and quality of the liquid are influenced.
In the prior art, chinese patent with publication number CN1214842C discloses a shock leakage prevention device for a suspension type downcomer tray, which comprises a plurality of rows of inclined holes arranged on a liquid receiving bubbling region of the tray, wherein the plurality of rows of inclined holes comprise two adjacent rows of inclined holes which are arranged in a staggered manner and have opposite inclination angles, and the two adjacent rows of inclined holes have the same number, or comprise two left and right inclined holes which have opposite inclination angles and have the same number. In the technical scheme, the liquid falling direction of the liquid is induced by the inclined holes, the liquid falling position is avoided from the liquid receiving bubbling area, the impact leakage is reduced, and the mixed mass transfer effect of the gas and the liquid in the liquid receiving bubbling area is enhanced.
However, in the actual use process, in order to achieve the purpose that the liquid falling position avoids the liquid receiving bubbling region, the arrangement area of the liquid falling pipe is limited, the arrangement number of the liquid receiving bubbling regions is also limited, and the liquid separation treatment efficiency of the whole tower is influenced.
Disclosure of Invention
The invention aims to provide a downcomer buffer device of a multi-downcomer tray, which can reduce the impact of liquid in a downcomer on a bubble structure on a liquid receiving tray, and the arrangement of the downcomer buffer device does not influence the liquid separation treatment efficiency of the whole tower.
The technical purpose of the invention is realized by the following technical scheme:
a liquid descending buffering device of a multi-downcomer tower tray comprises a first side baffle, a second side baffle, a middle connecting plate and an anti-impact plate, wherein the first side baffle and the second side baffle are arranged in parallel from left to right; a plurality of impingement plates are arranged between the first side baffle and the second side baffle, the impingement plates are sequentially distributed from the first side baffle to the second side baffle, and two ends of the impingement plates are respectively welded on the two middle connecting plates; the plurality of impingement plates are obliquely arranged, and the inclination directions of two adjacent impingement plates are opposite; the impingement plate is provided with a plurality of liquid dropping holes which are uniformly distributed on the impingement plate.
Through adopting above-mentioned technical scheme, on the liquid receiving plate of below was directly fallen through the down flow hole to some liquid that descends on the downcomer, on some clashes into down flow hole impingement plate body all around, then flowed to the side along the impingement plate body, fell on the liquid receiving plate through down flow hole again in batches once more in the flow process. The descending liquid is divided by the descending liquid hole, so that the direct impact of the liquid on the liquid receiving disc is reduced; likewise, the liquid descending process can be prolonged, so that the ascending gas phase medium can be fully contacted with the descending liquid for mass transfer.
Furthermore, mounting plates perpendicular to the middle connecting plate are arranged at two ends of the middle connecting plate respectively, and the mounting plates at two ends of the middle connecting plate are welded on the first side baffle and the second side baffle respectively.
Through adopting above-mentioned technical scheme, the mounting panel can improve intermediate junction plate's installation intensity for the intermediate junction plate installation is more stable.
Furthermore, the both ends of impingement baffle are equipped with the impingement mounting panel respectively, and the impingement mounting panel welding is in intermediate junction plate surface.
Through adopting above-mentioned technical scheme, the scour protection mounting panel can improve the installation intensity of scour protection board for the scour protection mounting panel installation is more stable.
Furthermore, the down-flow hole is circular, and a separation structure is welded in the down-flow hole.
Through adopting above-mentioned technical scheme, the down-flow hole of circular structure can improve liquid mobility, avoids liquid to form in the down-flow hole and is detained, and the liquid that separation structure can further separation descends.
Further, the separation structure comprises at least one separation rib transversely arranged in the down-flow hole.
Through adopting above-mentioned technical scheme, the liquid that descends through the down-flow hole bumps after the separation muscle again the separation and descends on receiving the liquid dish.
Further, the separation structure comprises a central plate arranged in the center of the down-flow hole, and the side walls of the central plate and the inner side wall of the down-flow hole are connected through a plurality of separation strips.
Through adopting above-mentioned technical scheme, the liquid that descends through the downcomer hole bumps central panel back and falls along the dispersed flow of parting bead.
Furthermore, a circle of diffusion guide plates are arranged on the lower end face of the down-flow hole along the edge, and the cross section of a guide structure formed by the diffusion guide plates is gradually enlarged from one end facing the down-flow hole to the other end.
Through adopting above-mentioned technical scheme, the diffusion deflector can let along the liquid diversion that the liquid on the liquid receiving dish and the liquid that descends to the liquid receiving dish through the liquid descending hole of descending on the liquid receiving dish.
Furthermore, a diversion trench is arranged between two adjacent down-flow holes, and two ends of the diversion trench are respectively communicated with the two adjacent down-flow holes.
Through adopting above-mentioned technical scheme, the liquid that descends on the impingement baffle can flow to the down-flow hole along the guiding gutter in, then descend on the catch basin along down-flow hole edge.
Furthermore, a first side mounting plate is arranged on one side, back to the second side baffle, of the first side baffle, the first side mounting plate is perpendicular to the first side baffle, and a plurality of first side mounting holes are formed in the first side mounting plate.
Through adopting above-mentioned technical scheme, first side shield can realize the stable installation on the tray.
Furthermore, a second side mounting plate is arranged on one side, back to the first side baffle, of the second side baffle, the second side mounting plate is perpendicular to the second side baffle, and a plurality of front and back through second side mounting holes are formed in the second side baffle.
Through adopting above-mentioned technical scheme, the second side shield can realize the stable installation on the tray.
In conclusion, the invention has the following beneficial effects:
1. through the arrangement of the impingement plate and the downcomer hole, the impact of liquid in the downcomer on a bubbling structure on the liquid receiving disc can be reduced, and the arrangement of the downcomer buffer device does not influence the liquid separation treatment efficiency of the whole tower;
2. through the arrangement of the impingement plates and the liquid descending holes, the descending process of liquid can be prolonged, so that ascending gas-phase medium can be in full contact with descending liquid for mass transfer;
3. the circular down-flow hole can improve the liquidity of the liquid and avoid the liquid from being detained in the down-flow hole;
4. by providing the separation structure, the falling liquid can be further separated.
Drawings
Fig. 1 is a first perspective view of the present invention.
Fig. 2 is a perspective view from a second perspective of the present invention.
Figure 3 is a front perspective view of one embodiment of the impingement plate of the present invention.
Figure 4 is a rear perspective view of another embodiment of a baffle of the present invention.
In the figure, 1, a first side baffle; 2. a second side baffle; 3. an intermediate connection plate; 4. a fender; 5. a downcomer hole; 6. mounting a plate; 7. an anti-impact mounting plate; 8. separating the ribs; 9. a center plate; 10. separating the strips; 11. a diffusion guide plate; 12. a diversion trench; 13. a first side mounting plate; 14. a first side mounting hole; 15. a second side mounting hole; 16. a second side mounting plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention mainly includes a first side barrier 1, a second side barrier 2, an intermediate connection plate 3, and a baffle plate 4.
As shown in fig. 1 and 2, the first side baffle 1 and the second side baffle 2 are arranged in parallel, the first side baffle 1 and the second side baffle 2 are welded into a whole through four middle connecting plates 3 arranged in parallel, and the four middle connecting plates 3 are respectively located at four corners of the first side baffle 1 and the second side baffle 2.
As shown in fig. 1 and 2, a first side mounting plate 13 is disposed on a side of the first side baffle 1 facing away from the second side baffle 2, the first side mounting plate 13 is perpendicular to the first side baffle 1, and a plurality of first side mounting holes 14 are disposed on the first side mounting plate 13. When in use, the first side mounting plate 13 is detachably connected to the tray through the connecting piece arranged in the first side mounting hole.
As shown in fig. 1 and 2, a second side mounting plate 16 is arranged on the side of the second side baffle 2, which is opposite to the first side baffle 1, the second side mounting plate 16 is arranged perpendicular to the second side baffle 2, and the second side mounting plate 16 is fixed on the tray when in use. The second side baffle 2 is provided with a plurality of second side mounting holes 15 which are through from front to back, when the side baffle is used, connecting pieces are arranged in the second side mounting holes 15, and the second side baffle 2 is detachably connected to the tower tray through the connecting pieces.
As shown in fig. 1 and 2, in order to improve the installation strength of the intermediate connection plate 3, mounting plates 6 perpendicular to the intermediate connection plate 3 are respectively provided at both ends of the intermediate connection plate 3, and the mounting plates 6 at both ends of the intermediate connection plate 3 are respectively welded to the first side fence 1 and the second side fence 2.
As shown in fig. 1 and 2, a plurality of impingement plates 4 are arranged between the first side baffle 1 and the second side baffle 2, the impingement plates 4 form a buffer structure for liquid falling, the impingement plates 4 are distributed from the first side baffle 1 to the second side baffle 2 in sequence, and two ends of the impingement plates 4 are welded on the two intermediate connecting plates 3 respectively. In use, a plurality of downcomers are positioned directly above the cushioning structure of the present invention and a catch tray is positioned below the cushioning structure of the present invention.
As shown in fig. 1 and 2, in order to make the liquid falling onto the impingement plate 4 fall onto the liquid receiving tray uniformly, a plurality of impingement plates 4 are arranged obliquely, and the inclination directions of two adjacent impingement plates 4 are opposite. The liquid falling on the downcomer falls on the baffle 4 and then flows to the liquid receiving disc along the baffle, the baffle slows down the flow velocity, and the direct impact of the liquid on the liquid receiving disc is reduced.
As shown in fig. 1 and 2, in order to improve the installation strength of the impingement plate 4, impingement mounting plates 7 are respectively arranged at both ends of the impingement plate 4, and the impingement mounting plates 7 are welded on the surface of the intermediate connection plate 3.
As shown in fig. 1 and 2, the impingement plate 4 is provided with a plurality of circular down-flow holes 5, and the plurality of down-flow holes 5 are uniformly distributed on the impingement plate 4. The liquid falling on the downcomer is evenly distributed on the liquid receiving tray below through a plurality of liquid falling holes 5. When in use, a part of liquid falling on the downcomer directly falls on the liquid receiving disc below through the downcomer hole; a part of liquid falling on the downcomer impacts the impingement plate body around the downcomer hole, then flows to the side surface along the impingement plate body, and falls on the liquid receiving disc through the downcomer hole in batches again in the flowing process. The descending liquid is divided by the descending liquid hole, so that the direct impact of the liquid on the liquid receiving disc is reduced; likewise, the liquid descending process can be prolonged, so that the ascending gas phase medium can be fully contacted with the descending liquid for mass transfer. The circular-structure down-flow hole 5 can improve the liquid fluidity and avoid the liquid from being retained in the down-flow hole.
In order to further separate the falling liquid, a separation structure is welded in the liquid falling hole 5. In an alternative embodiment, as shown in fig. 3, the separation structure comprises at least one separation rib 8 arranged transversely in the downcomer opening 5. When in use, the liquid falling through the liquid descending holes collides with the separation ribs 8 and then is separated again and falls on the liquid receiving disc.
In another alternative embodiment, as shown in fig. 4, the separation structure comprises a central plate 9 disposed at the center of the down-flow well 5, and the side walls of the central plate 9 and the inner side walls of the down-flow well 5 are connected by a plurality of separation strips 10.
The liquid that falls on receiving the liquid dish along the downcomer hole edge assembles a position with the liquid that falls on receiving the liquid dish through the downcomer hole easily, leads to receiving partial region liquid on the liquid dish to descend inhomogeneously, for can letting the liquid that falls on receiving the liquid dish along the downcomer hole edge and fall the liquid reposition of redundant personnel on receiving the liquid dish through the downcomer hole. As shown in FIG. 4, a circle of diffusion guide plates 11 are arranged on the lower end surface of the down-flow hole 5 along the edge, and the cross section of a guide structure formed by the diffusion guide plates 11 is gradually enlarged from one end facing the down-flow hole 5 to the other end.
In order to make the liquid impacting the impingement plate 4 uniformly drop on the liquid receiving plate along the edge of the down-flow hole as much as possible, as shown in fig. 3, a diversion trench 12 is arranged between two adjacent down-flow holes 5, and two ends of the diversion trench 12 are respectively communicated with two adjacent down-flow holes 5. The liquid falling on the impingement plate 4 can flow into the downcomer holes 5 along the flow guide grooves 12 and then fall on the liquid receiving tray along the edge of the downcomer holes 5.
The working principle of the invention is as follows: a plurality of downcomers are positioned right above the buffer structure of the invention, and a liquid receiving tray is positioned below the buffer structure of the invention. When liquid begins to be separated, the liquid falling from the downcomer falls onto the baffle plate and then flows onto the liquid receiving disc along the baffle plate, the baffle plate slows down the flow velocity, and the direct impact of the liquid on the liquid receiving disc is reduced. Liquid falling on a part of the downcomers directly falls on the liquid receiving disc below through the liquid falling holes, liquid falling on a part of the downcomers collides with the baffle plate bodies around the liquid falling holes, then flows to the side surface along the baffle plate bodies, and falls on the liquid receiving disc through the liquid falling holes in batches again in the flowing process. The descending liquid is divided by the descending liquid hole, so that the direct impact of the liquid on the liquid receiving disc is reduced; likewise, the liquid descending process can be prolonged, so that the ascending gas phase medium can be fully contacted with the descending liquid for mass transfer. The circular-structure down-flow hole can improve the liquid fluidity and avoid the liquid from being detained in the down-flow hole. According to the invention, through the arrangement of the anti-impact plate and the down-flow hole, the direct impact of liquid on the liquid receiving disc is reduced, and the occurrence of impact liquid leakage is reduced.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a downcomer buffer of many downcomers tray, includes first side shield (1), second side shield (2), intermediate junction board (3) and impingement baffle (4), its characterized in that: the first side baffle (1) and the second side baffle (2) are arranged in parallel from left to right, the first side baffle (1) and the second side baffle (2) are welded into a whole through four middle connecting plates (3) which are arranged in parallel, and the four middle connecting plates (3) are respectively positioned at four corners of the first side baffle (1) and the second side baffle (2); a plurality of impingement plates (4) are arranged between the first side baffle (1) and the second side baffle (2), the impingement plates (4) are distributed from the first side baffle (1) to the second side baffle (2) in sequence, two ends of the impingement plates (4) are welded on the two intermediate connecting plates (3) respectively, the impingement plates (4) are arranged in an inclined mode, the inclination directions of two adjacent impingement plates (4) are opposite, a plurality of liquid dropping holes (5) are formed in the impingement plates (4), the liquid dropping holes (5) are uniformly distributed on the impingement plates (4), the liquid dropping holes (5) are circular, a separation structure is welded in the liquid dropping holes (5) and comprises a central plate (9) arranged at the center of the liquid dropping holes (5), the side walls of the central plate (9) and the inner side walls of the liquid dropping holes (5) are connected through a plurality of separation strips (10), a circle of diffusion guide plates (11) are arranged on the lower end faces of the liquid dropping holes (5) along the edges, the cross section of a guide structure formed by the diffusion guide plates (11) gradually becomes larger from one end to the other end of each of the liquid descending holes (5), a guide groove (12) is arranged between every two adjacent liquid descending holes (5), and the two ends of each guide groove (12) are communicated with the two adjacent liquid descending holes (5) respectively.
2. The downcomer buffer apparatus of a multi-downcomer tray of claim 1, wherein: the middle connecting plate (3) is provided with mounting plates (6) which are perpendicular to the middle connecting plate (3) at two ends respectively, and the mounting plates (6) at two ends of the middle connecting plate (3) are welded on the first side baffle (1) and the second side baffle (2) respectively.
3. The downcomer buffer apparatus of a multi-downcomer tray of claim 1, wherein: the two ends of the anti-impact plate (4) are respectively provided with an anti-impact mounting plate (7), and the anti-impact mounting plates (7) are welded on the surface of the intermediate connecting plate (3).
4. The downcomer buffer apparatus of a multi-downcomer tray of claim 1, wherein: first side shield (1) is equipped with first side mounting panel (13) dorsad second side shield (2) one side, and first side mounting panel (13) set up with first side shield (1) is perpendicular, is equipped with a plurality of first side mounting holes (14) on first side mounting panel (13).
5. The downcomer buffer apparatus of a multi-downcomer tray of claim 1, wherein: second side shield (2) are equipped with second side mounting panel (16) dorsad first side shield (1) one side, and second side mounting panel (16) set up with second side shield (2) are perpendicular, are equipped with a plurality of second side mounting holes (15) that link up around on second side shield (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028683.7A CN111135598B (en) | 2020-01-11 | 2020-01-11 | Liquid descending buffer device of multi-downcomer tower tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028683.7A CN111135598B (en) | 2020-01-11 | 2020-01-11 | Liquid descending buffer device of multi-downcomer tower tray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111135598A CN111135598A (en) | 2020-05-12 |
| CN111135598B true CN111135598B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010028683.7A Active CN111135598B (en) | 2020-01-11 | 2020-01-11 | Liquid descending buffer device of multi-downcomer tower tray |
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| Country | Link |
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| CN (1) | CN111135598B (en) |
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| EP0070917A1 (en) * | 1981-07-30 | 1983-02-09 | GebràDer Sulzer Aktiengesellschaft | Column for mass-and/or heat transfer-processes |
| US4620952A (en) * | 1985-10-15 | 1986-11-04 | Koch Engineering Company, Inc. | Gas liquid contact tray and method |
| CN1039362A (en) * | 1988-06-14 | 1990-02-07 | 尤尼-夫瑞克有限公司 | Vapor/liquid contact column structure |
| CN1422683A (en) * | 2001-12-05 | 2003-06-11 | 苏舍化学技术有限公司 | Plate type tower |
| CN1491734A (en) * | 2002-10-24 | 2004-04-28 | 中国石油化工股份有限公司 | Impact leakage preventing device of suspending downspout column plate |
| CN1864786A (en) * | 2006-04-11 | 2006-11-22 | 西安石油大学 | Tower plate with sinker in downcomer |
| CN207025346U (en) * | 2017-06-29 | 2018-02-23 | 吕洺萱 | One kind is efficiently from uniform films state cyclone |
| CN208320035U (en) * | 2018-05-10 | 2019-01-04 | 江苏思瑞迪塔器技术开发有限公司 | A kind of shunt downspout |
| CN109173314A (en) * | 2018-09-19 | 2019-01-11 | 光大环保技术研究院（南京）有限公司 | A kind of rectifying tower plates and rectifying column |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8678357B2 (en) * | 2010-05-17 | 2014-03-25 | Gtc Technology Us, Llc | Fluid contactor-diffuser tray assembly |
| US9844738B1 (en) * | 2016-06-20 | 2017-12-19 | Amt International Inc. | Tray assembly for gas/liquid contact tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1428702A (en) * | 1964-03-17 | 1966-02-18 | American Mach & Foundry | Stopper plate |
| EP0070917A1 (en) * | 1981-07-30 | 1983-02-09 | GebràDer Sulzer Aktiengesellschaft | Column for mass-and/or heat transfer-processes |
| US4620952A (en) * | 1985-10-15 | 1986-11-04 | Koch Engineering Company, Inc. | Gas liquid contact tray and method |
| CN1039362A (en) * | 1988-06-14 | 1990-02-07 | 尤尼-夫瑞克有限公司 | Vapor/liquid contact column structure |
| CN1422683A (en) * | 2001-12-05 | 2003-06-11 | 苏舍化学技术有限公司 | Plate type tower |
| CN1491734A (en) * | 2002-10-24 | 2004-04-28 | 中国石油化工股份有限公司 | Impact leakage preventing device of suspending downspout column plate |
| CN1864786A (en) * | 2006-04-11 | 2006-11-22 | 西安石油大学 | Tower plate with sinker in downcomer |
| CN207025346U (en) * | 2017-06-29 | 2018-02-23 | 吕洺萱 | One kind is efficiently from uniform films state cyclone |
| CN208320035U (en) * | 2018-05-10 | 2019-01-04 | 江苏思瑞迪塔器技术开发有限公司 | A kind of shunt downspout |
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| Publication number | Publication date |
|---|---|
| CN111135598A (en) | 2020-05-12 |
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