CN212492261U - Metal packing and packed tower - Google Patents
Metal packing and packed tower Download PDFInfo
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- CN212492261U CN212492261U CN202020782070.8U CN202020782070U CN212492261U CN 212492261 U CN212492261 U CN 212492261U CN 202020782070 U CN202020782070 U CN 202020782070U CN 212492261 U CN212492261 U CN 212492261U
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Abstract
The utility model provides a metal packing and filled tower relates to filled tower technical field, and this metal packing includes: a frame body and an arc-shaped rib sheet made of metal sheets; wherein, the frame body is formed by enclosing end parts at two ends and two opposite bent edges between the two end parts; the outer sides of the two end parts are processed into saw-toothed shapes; the two bent edges are bent upwards, and the outer edges of the two bent edges are bent upwards to form turned edges; the arc-shaped rib pieces are connected with two end parts of the frame body and are positioned between the two bent edges; the arc-shaped rib is bent downwards into an arc shape. In the technical scheme of the application, the first metal filler comprises a frame body and arc-shaped ribs, wherein the frame body is made of metal sheets; the outer sides of the two end parts are processed into saw-toothed shapes, so that bubbles generated by gas-liquid contact are more refined, the mass transfer area is increased, and the mass transfer efficiency is improved; secondly, the two bent edges of the frame body are provided with the turned edges, so that the strength of the metal filler can be improved; thirdly, the metal packing has circular arc open channels and higher flux.
Description
Technical Field
The application relates to the technical field of packed towers, in particular to a metal packing and a packed tower.
Background
The packed tower uses packing as basic component for gas-liquid contact and mass transfer, liquid flows from top to bottom in the form of film on the surface of packing, gas flows progressively with liquid from bottom to top in the form of continuous phase, and the gas-liquid two-phase mass transfer and heat transfer are carried out. The component concentrations and temperatures of the two phases vary continuously along the height of the column. The packed tower belongs to a differential contact type gas and liquid mass transfer device. The petrochemical industry has stronger and stronger requirements on energy conservation and emission reduction, and acidic gases SO2, SO3 and the like in the flue gas can be discharged after being treated to reach the standard. The flue gas is generally treated by a wet desulphurization method in industry, an empty tower is adopted for spraying, and lime water is adopted as absorption liquid. The packed tower has wide application in the absorption field, and has the advantages of large treatment capacity, high desulfurization efficiency, stable operation and the like.
The packing adopted by the existing packed tower has improved space in terms of mass transfer efficiency, structural stability and flux.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application will solve lies in, to prior art's the aforesaid not enough, provides a metal packing and filled tower, and this metal packing can improve filled tower's mass transfer efficiency, structural stability, flux.
The metal filler includes:
the frame body is made of metal sheets and is formed by enclosing end parts at two ends and two opposite bent edges between the two end parts; the outer sides of the two end parts are processed into saw-toothed shapes; the two bent edges are bent upwards, and the outer edges of the two bent edges are bent upwards to form turned edges;
the arc-shaped rib pieces are connected with the two end parts of the frame body and are positioned between the two bent edges; the arc-shaped rib is bent downwards into an arc shape.
Furthermore, the metal filler is provided with two arc-shaped ribs, a V-shaped tongue piece for connecting two end parts of the frame body is arranged between the two arc-shaped ribs, and the V-shaped tongue piece is bent upwards.
Furthermore, a plurality of oval open holes are uniformly formed in the frame body along the bent part for forming the flanging.
Further, each crimp corresponds to 3 oval-shaped openings.
Further, two ends of the frame are respectively provided with 2 or 3 saw teeth.
Further, the metal packing is made from a single metal sheet as a blank.
In another aspect, the present application also provides a packed tower having any of the above metal packings.
Further, this packed tower has set gradually from bottom to top: the device comprises an air inlet flue, a first distributor, a first-stage washing section, a second distributor, a first oil collecting tank, a second-stage washing section, a third distributor, a second oil collecting tank, a third-stage washing section, a fourth distributor, a first demister flushing pipe, a baffle plate demister, a second demister flushing pipe and a wire mesh demister; wherein, the first-stage washing section, the second-stage washing section and the third-stage washing section are filled with metal fillers.
Furthermore, 1-5 water spray nozzles for reducing the temperature of the flue gas are arranged in the air inlet flue.
Further, the first-stage washing section and the second-stage washing section adopt low-concentration sodium hydroxide solution as an absorbent; the third washing stage adopts deionized water as a washing agent.
In the technical scheme of the application, the first metal filler comprises a frame body and arc-shaped ribs, wherein the frame body is made of metal sheets; the outer sides of the two end parts are processed into saw-toothed shapes, so that bubbles generated by gas-liquid contact are more refined, the mass transfer area is increased, and the mass transfer efficiency is improved; secondly, the two bent edges of the frame body are provided with the turned edges, so that the strength of the metal filler can be improved; thirdly, the metal packing has circular arc open channels and higher flux.
Drawings
FIG. 1 is a schematic diagram of the structure of a packed column in the example of the present application.
Fig. 2 is a schematic front structural view of a metal filler in an embodiment of the present application.
Fig. 3 is a schematic side view of a metal filler in an embodiment of the present application.
Fig. 4 is a schematic bottom structure diagram of a metal filler in the embodiment of the present application.
Detailed Description
The following are specific embodiments of the present application and are further described with reference to the drawings, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
In addition, the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 1 to 4, the embodiment of the present application proposes a metal filler 1, where the metal filler 1 includes: a frame body 101 and arc-shaped ribs 102 made of metal sheets; wherein, the frame body 101 is enclosed by two opposite bent edges 1012 at the end parts 1011 and between the two end parts 1011; the outer sides of two end parts 1011 are processed into saw-toothed shapes; the two curved edges 1012 are bent upwards, and the outer edges thereof are bent upwards to form flanges 1012 a; the arc-shaped rib pieces 102 are connected with two end parts 1011 of the frame body 101 and are positioned between two bent edges 1012; the arc-shaped fins 102 are bent downward into an arc shape.
The packed tower uses the packing as the basic component for gas and liquid contact and mass transfer, the liquid flows from top to bottom in the shape of film on the surface of the packing, the gas flows progressively with the liquid from bottom to top in the form of continuous phase, and the mass and heat transfer between the gas and liquid is carried out. The component concentrations and temperatures of the two phases vary continuously along the height of the column. The packed tower belongs to a differential contact type gas and liquid mass transfer device. The metal packing 1 proposed in the examples of the present application is scattered in a packed tower.
In the embodiment of the present application, the metal filler 1 includes a frame 101 made of a metal sheet and an arc-shaped rib 102; the outer sides of the two end parts 1011 are processed into saw-toothed shapes, so that bubbles generated by gas-liquid contact are more refined, the mass transfer area is increased, and the mass transfer efficiency is improved. An arc open channel is formed between the frame body 101 and the arc rib 102, so that the flux can be improved. Further, the flanges 1012a provided on both the bent sides 1012 of the frame body 101 can improve the strength of the metal packing 1.
In some embodiments, the metal filler has two arc-shaped ribs 102, a V-shaped tongue 103 connecting two ends 1011 of the frame 101 is disposed between the two arc-shaped ribs 102, and the V-shaped tongue 103 is bent upward. The V-shaped tongue piece 103 can improve gas-liquid distribution so as to fully utilize the outer surface of the metal sheet of the ring, improve the utilization rate of the packing in the mass transfer area and enhance the mass transfer efficiency of the metal packing 1.
In some embodiments, the frame 101 is provided with a plurality of oval openings 1012b uniformly along the bend forming the flange 1012 a. It should be noted that a dead zone for gas-liquid flow is easily formed at the bent portion of the turned-up edge 1012a, a phenomenon of accumulation of scale-forming substances is easily generated, and the accumulation is increased when the time is long and the washing is not obtained for a long time, thereby causing a blocking phenomenon. The holes 1012b can allow gas-phase liquid to pass through, so that the gas-liquid contact area is increased, and the resistance of the packing layer can be reduced, thereby avoiding blockage at the bending part.
In some embodiments, referring to fig. 2 and 3, each crimp 1012 corresponds to 3 elliptical apertures 1012 b. The number of the holes 1012b may be set according to actual conditions.
In some embodiments, the two ends 1011 of the frame 101 are provided with 2 or 3 serrations 1011a, respectively. The number of the serrations 1011a may be set according to actual conditions. The serrations 1011a may also increase the contact gap between the metal fillers.
In some embodiments, the metal packing 1 is made from a single piece of sheet metal as a blank.
Referring to fig. 1, the present embodiment also proposes a packed tower having the metal packing 1 as set forth in the above embodiment section. The metal filler 1 is scattered in the filler tower, and the description of the metal filler 1 can be referred to the content of the previous embodiment, and will not be described herein.
It should be noted that the packed tower provided in the embodiments of the present application may be used for flue gas treatment, and the flue gas contains acidic gas, such as SO2, SO3, and the like. Recently, the petrochemical industry has more and more strong requirements on energy conservation and emission reduction, and acidic gases SO2, SO3 and the like in the flue gas need to be treated to reach the standard before being discharged.
Specifically, this packed tower has set gradually from bottom to top: the device comprises an air inlet flue 2, a first distributor 3, a first-stage washing section 4, a second distributor 5, a first oil collecting tank 6, a second-stage washing section 7, a third distributor 8, a second oil collecting tank 9, a third-stage washing section 10, a fourth distributor 11, a first demister flushing pipe 12, a baffle plate demister 13, a second demister flushing pipe 14 and a wire mesh demister 15; wherein, the first-stage washing section 4, the second-stage washing section 7 and the third-stage washing section 10 are filled with metal fillers 1.
Furthermore, 1-5 water spray nozzles 16 for reducing the temperature of the flue gas are arranged in the air inlet flue.
Further, the first-stage washing section and the second-stage washing section adopt low-concentration sodium hydroxide solution as an absorbent; the third washing stage adopts deionized water as a washing agent.
Further, the first distributor 3 is a sieve plate; the second distributor 5, the third distributor 8 and the fourth distributor 11 are narrow-slot distributors. It should be noted that the distributor and the oil collecting tank are conventional technical means in the prior art and are not described herein again.
In the embodiment of the application, the flue gas treatment process of the packed tower is as follows: the flue gas is dedusted by a dedusting device and then enters the packed tower 1 through an air inlet flue 2 at the bottom of the packed tower 1, the length of the air inlet flue 2 of the packed tower 1 is 1000-4000mm, and the flue gas is sprayed by a water spray nozzle 16 in the air inlet flue 2 to reduce the temperature of the flue gas to 50-60 ℃. The cooled flue gas enters the absorption tower through the flue and is initially distributed through the gas phase distribution sieve plate. The flue gas after initial distribution sequentially enters a first-stage washing section, a second-stage washing section and a third-stage washing section. The first-stage washing and the second-stage washing adopt low-concentration sodium hydroxide solution as an absorbent to mainly remove SO2 and SO3 acid gases in the flue gas. And the third-stage washing adopts deionized water for washing, and mainly removes entrained alkaline liquid drops and particles. And the flue gas after the three-stage washing enters a two-stage defoaming section, the first-stage defoaming section adopts a baffle plate demister, and the second-stage demisting adopts a wire mesh demister. Every demister device all is furnished with washing unit, avoids the defroster to block up. The flue gas after two-stage demisting reaches the national emission standard and is directly discharged into the atmosphere.
In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the present application as defined by the appended claims.
Claims (10)
1. A metal filler, characterized in that it comprises:
a frame (101) made of sheet metal, wherein the frame (101) is formed by enclosing end parts (1011) at two ends and two opposite bent edges (1012) between the two end parts (1011); the outer sides of the two end parts (1011) are processed into saw-toothed shapes; the two flanges (1012) are bent upwards, and the outer edges of the two flanges are bent upwards to form flanges (1012 a);
an arc rib (102) which is connected with two end parts (1011) of the frame body (101) and is positioned between two bent edges (1012); the arc-shaped rib (102) is bent downwards into an arc shape.
2. The metal filler according to claim 1, characterized in that the metal filler has two arc-shaped ribs (102), a V-shaped tongue (103) connecting two ends (1011) of the frame (101) is arranged between the two arc-shaped ribs (102), and the V-shaped tongue (103) is bent upwards.
3. The metal packing according to claim 1, characterized in that the frame (101) is provided with a plurality of oval openings (1012b) uniformly along the bends forming the flanges (1012 a).
4. A metal filler according to claim 3, characterized in that each bead (1012) corresponds to 3 oblong openings (1012 b).
5. The metal filler according to claim 1, wherein the both ends (1011) of the frame body (101) are provided with 2 or 3 serrations (1011a), respectively.
6. A metal packing according to claim 1, characterized in that it is made from a single piece of sheet metal as a blank.
7. A packed tower, characterized in that it has a metal packing (1) according to any one of claims 1 to 6.
8. The packed tower according to claim 7, wherein the packed tower is provided with: the device comprises an air inlet flue (2), a first distributor (3), a first-stage washing section (4), a second distributor (5), a first oil collecting tank (6), a second-stage washing section (7), a third distributor (8), a second oil collecting tank (9), a third-stage washing section (10), a fourth distributor (11), a first demister flushing pipe (12), a baffle plate demister (13), a second demister flushing pipe (14) and a wire mesh demister (15); wherein, the first-stage washing section (4), the second-stage washing section (7) and the third-stage washing section (10) are filled with metal fillers (1).
9. The packed tower according to claim 8, characterized in that 1-5 water nozzles (16) for reducing the flue gas temperature are provided in the inlet flue.
10. The packed tower of claim 8, wherein the primary washing section and the secondary washing section use a low-concentration sodium hydroxide solution as an absorbent; the third washing stage adopts deionized water as a washing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020782070.8U CN212492261U (en) | 2020-05-12 | 2020-05-12 | Metal packing and packed tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020782070.8U CN212492261U (en) | 2020-05-12 | 2020-05-12 | Metal packing and packed tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212492261U true CN212492261U (en) | 2021-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020782070.8U Active CN212492261U (en) | 2020-05-12 | 2020-05-12 | Metal packing and packed tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212492261U (en) |
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2020
- 2020-05-12 CN CN202020782070.8U patent/CN212492261U/en active Active
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Effective date of registration: 20220323 Address after: 410100 No.18 Lijiang Avenue, Langli Town, Changsha County, Changsha City, Hunan Province Patentee after: CHANGSHA BONENG TECHNOLOGY Co.,Ltd. Address before: 410100 No.18 Lijiang Avenue, Langli Town, Changsha County, Changsha City, Hunan Province Patentee before: CHANGSHA BONENG TECHNOLOGY Co.,Ltd. Patentee before: Liu Wei Patentee before: Lu Kuanhua |