CN220478374U - Folded plate demister - Google Patents

Folded plate demister Download PDF

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Publication number
CN220478374U
CN220478374U CN202323594193.1U CN202323594193U CN220478374U CN 220478374 U CN220478374 U CN 220478374U CN 202323594193 U CN202323594193 U CN 202323594193U CN 220478374 U CN220478374 U CN 220478374U
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CN
China
Prior art keywords
defogging
thorn
demister
thorns
portions
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Active
Application number
CN202323594193.1U
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Chinese (zh)
Inventor
周广斌
张兴圣
王东富
张举
李长青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Kaitai Petrochemical Co ltd
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Shandong Kaitai Petrochemical Co ltd
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Priority to CN202323594193.1U priority Critical patent/CN220478374U/en
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Publication of CN220478374U publication Critical patent/CN220478374U/en
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Abstract

The utility model relates to a folded plate demister, and belongs to the technical field of material separation. The demister comprises a demister body and a collecting device, wherein the demister body is arranged above the collecting device and is arranged at the top of the absorption tower through the collecting device; the defroster body includes a plurality of first defogging thorns of parallel arrangement, and first defogging thorns are connected through connecting the orifice plate, and connecting the orifice plate and being connected with collection device through the curb plate, and first defogging thorns include a plurality of defogging thorn first portions and a plurality of defogging thorn second portions, and defogging thorn first portion and defogging thorn second portion end to end in proper order, defogging thorn first portion and defogging thorn second portion slope setting. The demisting device can prevent the device from being blocked while ensuring demisting effect.

Description

Folded plate demister
Technical Field
The utility model relates to a folded plate demister, and belongs to the technical field of material separation.
Background
At present, when acrylic acid is produced, a demister is required to be arranged at the top of the quenching absorption tower, and can remove liquid drops in acrylic acid tail gas, so that the liquid drops in the tail gas are prevented from entering a circulating gas fan and a reactor catalyst, and the stable operation of the device is influenced. The original design of the demister at the top of the quenching absorption tower is made of silk screen materials, so that the demisting effect is guaranteed, the silk screen is made very compact, the demister is easy to block in the operation process, the pressure of the quenching tower is increased, and the long-period operation of the device is affected.
Chinese patent (CN 213221579U) discloses an acrylic acid washing device in acrylic acid production, which comprises a demister, and is horizontally arranged inside a washing tank below the exhaust pipe, and is used for removing acrylic acid slurry entrained in exhaust gas in the washing tank. The above patent does not disclose a specific structure of the demister, and therefore, the demisting effect cannot be ensured, and occurrence of clogging cannot be avoided.
Disclosure of Invention
The utility model aims to solve the technical problems that: overcomes the defects of the prior art, provides a folded plate demister, and avoids the blockage of the device while ensuring the demisting effect.
The folded plate demister comprises a demister body and a collecting device, wherein the demister body is arranged above the collecting device and is arranged at the top of an absorption tower through the collecting device;
the defroster body includes a plurality of first defogging thorns of parallel arrangement, and first defogging thorns are connected through connecting the orifice plate, and connecting the orifice plate and being connected with collection device through the curb plate, and first defogging thorns include a plurality of defogging thorn first portions and a plurality of defogging thorn second portions, and defogging thorn first portion and defogging thorn second portion end to end in proper order, defogging thorn first portion and defogging thorn second portion slope setting.
The connecting pore plate is provided with a plurality of through holes. The weight of the connecting pore plate is reduced while the demister thorns are connected.
The included angle between the first defogging thorn part and the second defogging thorn part is 60-120 degrees.
The first portion of defogging thorn and defogging thorn second portion junction set up the defogging thorn of second, the defogging thorn of second is L shape setting. Ensure that the liquid drops in the acrylic acid tail gas are cleaned.
The top of the demister body is provided with a baffle. The baffle covers the whole space on defroster body upper portion, blocks acrylic acid tail gas and upwards flows, prevents acrylic acid tail gas flow to the top of the tower, ensures acrylic acid tail gas and passes through from the defroster body.
The collecting device comprises a liquid collecting tank. After the liquid drops in the acrylic acid tail gas meet the demisting thorns, the liquid drops are adsorbed on the demisting thorns and flow downwards along the demisting thorns under the action of gravity, and are converged in the liquid collecting tank.
The liquid collecting pipe is arranged below the liquid collecting groove, and the tail part of the liquid collecting pipe is bent upwards. The liquid drops flow into the liquid collecting pipe from the liquid collecting groove, and because the tail part of the liquid collecting pipe is upwards bent, the liquid drops are gathered at the bent part of the liquid collecting pipe to form a water seal, so that acrylic acid is prevented from entering the demister body from the liquid collecting pipe.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the demister, the demister body is arranged to form the demister thorn first part and the demister thorn second part and is obliquely arranged, so that the demister meets demisting requirements and simultaneously avoids blocking of the demister.
(2) The first portion of defogging thorn and defogging thorn second portion junction set up the second defogging thorn, and the second defogging thorn is L shape setting. Ensure that the liquid drops in the acrylic acid tail gas are cleaned.
(3) The liquid collecting tank is provided with a liquid collecting pipe below, and the tail part of the liquid collecting pipe is bent upwards. The liquid drops flow into the liquid collecting pipe from the liquid collecting groove, and because the tail part of the liquid collecting pipe is upwards bent, the liquid drops are gathered at the bent part of the liquid collecting pipe to form a water seal, so that acrylic acid is prevented from entering the demister body from the liquid collecting pipe.
Drawings
FIG. 1 is a schematic diagram showing the front view structure of embodiment 1 of the present utility model;
FIG. 2 is a schematic view of the structure of FIG. 1 in the direction A-A;
FIG. 3 is a schematic top view of a demister body;
fig. 4 is a schematic sectional view of the structure of fig. 1 along the direction B-B.
In the figure: 1. a liquid collecting pipe; 2. a liquid collecting tank; 3. a demister body; 31. a side plate; 32. a connecting pore plate; 33. a first demisting thorn; 331. defogging the first part; 332. a defogging thorn second part; 34. second defogging thorns; 4. a baffle; 5. acrylic acid flow direction.
Detailed Description
The utility model is further described below with reference to examples:
example 1
As shown in fig. 1 to 4, the folded plate demister comprises demister bodies 3 and a collecting device, wherein the demister bodies 3 are arranged above the collecting device, the number of the demister bodies 3 is multiple, the demister bodies 3 are determined according to the size of a tower body, and the plurality of demister bodies 3 are arranged side by side, are fixedly connected with each other, and are arranged at the top of an absorption tower through the collecting device;
as shown in fig. 3 and 4, the demister body 3 includes a plurality of first defogging thorns 33 of parallel arrangement, and first defogging thorns 33 are connected through connecting orifice plate 32, and connecting orifice plate 32 is connected with collection device through curb plate 31, and first defogging thorns 33 include a plurality of defogging thorns first portion 331 and a plurality of defogging thorns second portion 332, and defogging thorns first portion 331 and defogging thorns second portion 332 end to end in proper order, defogging thorns first portion 331 and defogging thorns second portion 332 slope setting. The included angle between the defogging spine first portion 331 and the defogging spine second portion 332 is 60 degrees, 90 degrees or 120 degrees. The connection orifice plate 32 is provided with a plurality of through holes. While satisfying the connection of the defogging thorns, the weight of the connection orifice plate 32 is reduced. The second defogging thorn 34 is set up to defogging thorn first portion 331 and defogging thorn second portion 332 junction, and second defogging thorn 34 is the L shape setting. The opening of the second demisting thorn 34 corresponds to the acrylic acid flowing direction 5, so that the liquid drops in the acrylic acid tail gas are ensured to be cleaned.
As shown in fig. 1 and 2, the collecting device comprises a sump 2. The liquid collecting tank 2 is arranged in a U shape, and the liquid collecting tank 2 is connected with the side plate 31; after the liquid drops in the acrylic acid tail gas meet the demisting thorns, the liquid drops are adsorbed on the demisting thorns and flow downwards along the demisting thorns under the action of gravity, and are converged in the liquid collecting tank 2. The liquid collecting tank 2 is provided with a liquid collecting pipe 1 below, the liquid collecting pipe 1 is communicated with the liquid collecting tank 2, and the tail part of the liquid collecting pipe 1 is bent upwards. The liquid drops flow into the liquid collecting pipe 1 from the liquid collecting groove 2, and because the tail of the liquid collecting pipe 1 is upwards bent, the liquid drops are gathered at the bent part of the liquid collecting pipe 1 to form a water seal, so that acrylic acid is prevented from entering the demister body 3 from the liquid collecting pipe 1.
The working process comprises the following steps:
acrylic acid tail gas rises, flows to defroster body 3 direction of both sides, and the liquid droplet in the acrylic acid tail gas runs into defogging thorn after, adsorbs on defogging thorn and flows down along defogging thorn under the action of gravity, gathers liquid droplet from liquid sump 2 inflow collector tube 1 in liquid sump 2, and the liquid droplet gathers in collector tube 1 bend department, forms the water seal, prevents that acrylic acid from getting into defroster body 3 from collector tube 1.
The description of the directions and the relative positional relationships of the structures, such as the description of the front, back, left, right, up and down, in the present utility model does not limit the present utility model, but is merely for convenience of description.

Claims (7)

1. The folded plate demister is characterized by comprising a demister body (3) and a collecting device, wherein the demister body (3) is arranged above the collecting device and is arranged at the top of an absorption tower through the collecting device;
the defroster body (3) includes a plurality of first defogging thorns (33) of parallel arrangement, and first defogging thorns (33) are connected through connecting orifice plate (32), and connecting orifice plate (32) are connected with collection device through curb plate (31), and first defogging thorns (33) include a plurality of defogging thorn first portions (331) and a plurality of defogging thorn second portions (332), defogging thorn first portions (331) and defogging thorn second portions (332) end to end in proper order, defogging thorn first portions (331) and defogging thorn second portions (332) slope setting.
2. The folded plate mist eliminator as claimed in claim 1, characterized in that the connecting orifice plate (32) is provided with a plurality of through holes.
3. The flap mist eliminator as claimed in claim 1, characterized in that the included angle between the first portion (331) of the mist elimination thorn and the second portion (332) of the mist elimination thorn is 60 to 120 degrees.
4. A folded plate mist eliminator as claimed in claim 3, characterized in that the junction of the first portion (331) and the second portion (332) is provided with a second mist eliminator (34), the second mist eliminator (34) being provided in the shape of an L.
5. The folded plate mist eliminator as claimed in claim 1, characterized in that a baffle (4) is provided at the top of the mist eliminator body (3).
6. The flap mist eliminator according to any of the claims 1 to 5, characterized in that the collecting means comprises a sump (2).
7. The folded plate demister according to claim 6, wherein a liquid collecting pipe (1) is arranged below the liquid collecting groove (2), and the tail part of the liquid collecting pipe (1) is bent upwards.
CN202323594193.1U 2023-12-28 2023-12-28 Folded plate demister Active CN220478374U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202323594193.1U CN220478374U (en) 2023-12-28 2023-12-28 Folded plate demister

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202323594193.1U CN220478374U (en) 2023-12-28 2023-12-28 Folded plate demister

Publications (1)

Publication Number Publication Date
CN220478374U true CN220478374U (en) 2024-02-13

Family

ID=89839559

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202323594193.1U Active CN220478374U (en) 2023-12-28 2023-12-28 Folded plate demister

Country Status (1)

Country Link
CN (1) CN220478374U (en)

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