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A cyclone demister

A mist eliminator and cyclone technology, which is applied in the field of gas-liquid separation equipment, can solve problems such as it is difficult to meet the emission standards of flue gas, and achieve the effects of reducing one-time investment costs, avoiding secondary entrainment, and improving mist removal efficiency.

Active Publication Date: 2022-02-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In the application process of the above mist eliminators, in order to meet the requirements of the droplet carrying capacity of the exhaust gas, two or more stages of mist eliminators are generally required, and it is difficult to meet the standard emission of flue gas by setting up a single stage of mist eliminators. Require

Method used

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  • A cyclone demister
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] as attached Figure 1~3 As shown, the lower end of the gas riser 2 of the cyclone demister is flush with the tray 1, and four rectification channels 3 are arranged on the gas riser 2. The cross-sectional shape of the rectification channel 3 is rectangular, and the side wall II 3-2 of the rectification channel 3 The end extends into the interior of the air riser 2 for a certain distance m, m is 0.5 times the length L of the rectification channel 3, L is 3.5 times the width w, and the total cross-sectional area of ​​the rectification channel 3 is 0.8 times the cross-sectional area of ​​the air riser 2, The distance A between the bottom of the rectifying channel 3 and the tray 1 is 100 mm.

[0058] The outer cylinder 4 of the cyclone demister is a cylinder, the diameter D of the outer cylinder 4 is three times the diameter d of the air riser 2, and the distance P between the upper edge of the outer cylinder 4 and the upper edge of the air riser 2 is the height h of the rec...

Embodiment 2

[0062] as attached Figure 4~6 As shown, the lower end of the gas riser 2 of the cyclone demister is lower than the tray 1, the distance C between the lower end of the gas riser 2 and the tray 1 is 50mm, and the gas riser 2 is provided with 6 rectification channels 3, and the rectification channel 3 The cross-sectional shape is rectangular, the end of the side wall II 3-2 of the rectification channel 3 is flush with the inner wall of the air riser 2, the length L of the rectification channel 3 is 4 times the width w, and the total cross-sectional area of ​​the rectification channel 3 is the cross section of the air riser 2 0.7 times the area, the distance A between the bottom of the rectifying channel 3 and the tray 1 is 300 mm.

[0063] The outer cylinder 4 of the cyclone demister is a cylinder, the diameter D of the outer cylinder 4 is 4 times the diameter d of the air riser 2, and the distance P between the upper edge of the outer cylinder 4 and the upper edge of the air ri...

Embodiment 3

[0067] as attached Figure 5 , 7 As shown in ~8, the lower end of the gas riser 2 of the cyclone demister is lower than the tray 1, the distance C between the lower end of the gas riser 2 and the tray 1 is 30mm, and 6 rectification channels 3 are arranged on the gas riser 2 (attached Figure 5 ), the cross-sectional shape of the rectification channel 3 is circular, the end of the side wall II 3-2 of the rectification channel 3 is flush with the inner wall of the air riser 2, the length L of the rectification channel 3 is 2.5 times the width w, and the total cut-off of the rectification channel 3 The area is 0.6 times of the cross-sectional area of ​​the gas riser 2, and the distance A between the bottom of the rectifying channel 3 and the tray 1 is 350 mm.

[0068] The outer cylinder 4 of the cyclone demister is a cylinder, the diameter D of the outer cylinder 4 is 2.5 times the diameter d of the air riser 2, and the distance P between the upper edge of the outer cylinder 4 a...

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Abstract

The invention discloses a cyclone demister. The cyclone demister includes several defogging assemblies, each defogging assembly includes a riser pipe and an outer cylinder, the outer cylinder is arranged on the outside of the riser pipe, and is on the same axis as the riser pipe; the riser pipe is fixed on On the tray, a cover plate is set on the top of the gas riser, and a rectification channel is set on the circumference of the gas riser; the wall of the outer cylinder includes an inner wall and an outer wall, and the inner wall and the outer wall are hollow structures, and the hollow structure is closed at the top and open at the bottom . The demister of the present invention realizes the separation of liquid droplets and gases through the rectification, acceleration and scraping effect of the fluid in the flow process. The mist eliminator of the present invention has simple structure, high mist removal efficiency, single-layer arrangement can effectively realize gas-liquid separation, and satisfies the requirement of carrying amount of mist in gas.

Description

technical field [0001] The invention relates to a gas-liquid separation device, in particular to a cyclone demister. Background technique [0002] A large amount of SO is produced in the production process of electric power, metallurgy, petrochemical, coking and other industries 2 Harmful substances such as dust and dust have brought serious acid rain hazards and smog weather, and are currently the key air pollutants controlled in our country. At present, the wet desulfurization process is widely used in the field of environmental protection to remove sulfur dioxide and other harmful substances in the flue gas, that is, to spray lye on the flue gas to absorb or adsorb these harmful substances. However, in the wet desulfurization process, the flue gas after desulfurization in the absorption tower contains a large number of fine droplets with a particle size of about 10-60 microns, and sulfuric acid, sulfate, SO 2 etc., will not only pollute the atmospheric environment, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D45/16B01D53/24B01D53/26B01D53/78B01D53/50
CPCB01D45/16B01D53/24B01D53/263B01D53/78B01D53/50B01D2258/0283
Inventor 刘忠生李磊李欣王海波金平高峰
Owner CHINA PETROLEUM & CHEM CORP
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