CN216572417U - Three-dimensional mass transfer column plate for wet flue gas desulfurization - Google Patents

Three-dimensional mass transfer column plate for wet flue gas desulfurization Download PDF

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Publication number
CN216572417U
CN216572417U CN202123268330.3U CN202123268330U CN216572417U CN 216572417 U CN216572417 U CN 216572417U CN 202123268330 U CN202123268330 U CN 202123268330U CN 216572417 U CN216572417 U CN 216572417U
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China
Prior art keywords
desulfurization
flue gas
mass transfer
circulation holes
column plate
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CN202123268330.3U
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Chinese (zh)
Inventor
谢尉扬
丁得龙
葛春亮
张威
张力
袁静娟
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Zhejiang Tiandi Environmental Protection Technology Co Ltd
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Zhejiang Tiandi Environmental Protection Technology Co Ltd
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Abstract

The utility model relates to a wet flue gas desulfurization three-dimensional mass transfer tower plate, which comprises a plurality of desulfurization mass transfer components and circulation holes; the desulfurization mass transfer component is horizontally arranged between a flue gas inlet of the desulfurization absorption tower and the slurry spraying layer, and the edge of the desulfurization mass transfer component is fixed on the inner wall of the desulfurization absorption tower; the lower part of the desulfurization mass transfer component is provided with a plurality of circulation holes, the circulation holes are of a horn-shaped structure, and the circulation holes are used as flow channels of flue gas and slurry. The utility model has the advantages that: the utility model discloses a column plate is equipped with tubaeform opening, and when the column plate was flowed through to the flue gasThe Venturi effect is generated, the flow velocity of the flue gas is increased, the desulfurized slurry is dispersed into fine fog drops, the gas-liquid contact area is increased, the desulfurized slurry is more fully contacted with the flue gas, and the improvement of SO (sulfur oxide) is facilitated2The removal efficiency of (2); and simultaneously, the utility model discloses still have the maintenance and maintain advantages such as convenient, difficult jam, be fit for being used for wet flue gas desulfurization technology.

Description

Three-dimensional mass transfer column plate for wet flue gas desulfurization
Technical Field
The utility model belongs to the technical field of flue gas desulfurization, a gas-liquid mass transfer technique is related to, concretely relates to three-dimensional mass transfer column plate of wet flue gas desulfurization.
Background
The wet desulphurization process (WFGD) mainly utilizes alkaline liquid to absorb sulfur dioxide in flue gas, and has the advantages of high reaction speed, stable equipment operation, high desulphurization efficiency and the like. The absorption tower is a core device for wet flue gas desulfurization, and acid gases such as sulfur dioxide in the flue gas are in countercurrent contact with desulfurization slurry in the absorption tower and are absorbed. The process is a complex reaction process involving three phases of mass transfer, gas, liquid and solid.
In the absorption tower with the tray, the slurry is supported by the kinetic energy of the flue gas passing through the tray to form a foam layer, SO2Along with the flue gas is absorbed rapidly when passing through the foam layer, desulfurization efficiency promotes greatly. The tray type spray tower gradually becomes the mainstream tower type of the wet flue gas desulfurization absorption tower due to the advantages of simple structure, high gas velocity, mature technology and the like. However, the existing trays are provided with round sieve pores, the gas-liquid contact time is short, the gas-liquid mass transfer cannot be fully realized, and the desulfurization efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, providing a three-dimensional mass transfer column plate of wet flue gas desulfurization, increase the interior gas-liquid mass transfer area of desulfurization absorption tower, extension gas-liquid contact time improves desulfurization efficiency.
The wet flue gas desulfurization three-dimensional mass transfer tower plate comprises a plurality of desulfurization mass transfer components and circulation holes; the desulfurization mass transfer component is horizontally arranged between a flue gas inlet of the desulfurization absorption tower and the slurry spraying layer, and the edge of the desulfurization mass transfer component is fixed on the inner wall of the desulfurization absorption tower; the lower part of the desulfurization mass transfer component is provided with a plurality of circulation holes, the circulation holes are of a horn-shaped structure, and the circulation holes are used as flow channels of flue gas and slurry.
Preferably, the method comprises the following steps: the area of the inlet end of the circulation hole is 0.00045-0.002m2The ratio of the outlet end area to the inlet end area of the circulation hole is 2-5.
Preferably, the method comprises the following steps: the outer wall of the circulation hole forms an angle alpha with the horizontal plane, and the angle alpha is 60-85 degrees.
The utility model has the advantages that: the utility model discloses a column plate is equipped with tubaeform opening, produces the venturi effect when the column plate is flowed through to the flue gas, and the flue gas velocity of flow increases, disperses the desulfurization thick liquid for tiny droplet, has increased gas-liquid area of contact, makes the desulfurization thick liquid more abundant with the flue gas contact, helps improving SO2The removal efficiency of (2). And simultaneously, the utility model discloses still have the maintenance and maintain advantages such as convenient, difficult jam, be fit for being used for wet flue gas desulfurization technology.
Drawings
FIG. 1 is a top view of a wet flue gas desulfurization three-dimensional mass transfer column plate;
FIG. 2 is a diagram of installation positions of a wet flue gas desulfurization three-dimensional mass transfer tower plate.
Description of reference numerals: the device comprises a desulfurization absorption tower 1, a desulfurization mass transfer component 2, a circulation hole 3, a flue gas inlet 4 and a slurry spraying layer 5.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
As an embodiment, the wet flue gas desulfurization three-dimensional mass transfer tower plate is horizontally arranged between a flue gas inlet 4 of a desulfurization absorption tower 1 and a slurry spraying layer 5, and the structure of the tower plate comprises a single or a plurality of desulfurization mass transfer components 2 and circulation holes 3; the desulfurization mass transfer component 2 is fixed on the inner wall of the desulfurization absorption tower 1, a plurality of circulation holes 3 are formed in the desulfurization mass transfer component 2, the circulation holes 3 are of a horn-shaped structure, and flue gas and slurry both use the circulation holes 3 as flow channels.
The area of the inlet end of the circulation hole 3 is 0.00045-0.002m2The ratio of the outlet end area of the circulation hole 3 to the inlet end area thereof is 2-5.
The outer wall of the circulation hole 3 forms an angle alpha with the horizontal plane, and the angle alpha is 60-85 degrees.
The flue gas enters the desulfurization absorption tower 1 from the flue gas inlet 4 and passes through the circulation holes 3 from bottom to top; the desulfurization slurry is sprayed out from the slurry spraying layer 5 and passes through the circulation hole 3 from top to bottom; when the flue gas flows through the tower plate, a Venturi effect is generated, the flow velocity of the flue gas is increased, the desulfurization slurry is dispersed into fine fog drops, the gas-liquid contact area is increased, and the desulfurization slurry is more fully contacted with the flue gas.

Claims (3)

1. A wet flue gas desulfurization three-dimensional mass transfer column plate is characterized in that: comprises a plurality of desulfurization mass transfer components (2) and circulation holes (3); the desulfurization mass transfer component (2) is horizontally arranged between a flue gas inlet (4) of the desulfurization absorption tower (1) and the slurry spraying layer (5), and the edge of the desulfurization mass transfer component (2) is fixed on the inner wall of the desulfurization absorption tower (1); the lower part of the desulfurization mass transfer component (2) is provided with a plurality of circulation holes (3), the circulation holes (3) are of a horn-shaped structure, and the circulation holes (3) are used as flow channels of flue gas and slurry.
2. The wet flue gas desulfurization stereo mass transfer column plate of claim 1, characterized in that: the area of the inlet end of the circulation hole (3) is 0.00045-0.002m2The ratio of the outlet end area to the inlet end area of the circulation hole (3) is 2-5.
3. The wet flue gas desulfurization stereo mass transfer column plate of claim 1, characterized in that: the outer wall of the circulation hole (3) forms an alpha angle with the horizontal plane, and the alpha angle is 60-85 degrees.
CN202123268330.3U 2021-12-21 2021-12-21 Three-dimensional mass transfer column plate for wet flue gas desulfurization Active CN216572417U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123268330.3U CN216572417U (en) 2021-12-21 2021-12-21 Three-dimensional mass transfer column plate for wet flue gas desulfurization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123268330.3U CN216572417U (en) 2021-12-21 2021-12-21 Three-dimensional mass transfer column plate for wet flue gas desulfurization

Publications (1)

Publication Number Publication Date
CN216572417U true CN216572417U (en) 2022-05-24

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ID=81617996

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123268330.3U Active CN216572417U (en) 2021-12-21 2021-12-21 Three-dimensional mass transfer column plate for wet flue gas desulfurization

Country Status (1)

Country Link
CN (1) CN216572417U (en)

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