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A low-resistance air-cooled elliptical tube demister and its demister method

A technology of mist eliminator and ellipse, which is applied to the low resistance air-cooled elliptical tube mist eliminator and its demisting field, can solve the problems of insufficient flushing, low dust removal efficiency, large flue gas flow resistance, etc., so as to save operating costs. , The effect of uniform flow and energy saving

Active Publication Date: 2017-10-20
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low efficiency of fog and dust removal, large resistance to flue gas flow and insufficient flushing of traditional mist eliminators, and to provide a low-resistance air-cooled oval tube type mist eliminator and its demisting method

Method used

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  • A low-resistance air-cooled elliptical tube demister and its demister method
  • A low-resistance air-cooled elliptical tube demister and its demister method
  • A low-resistance air-cooled elliptical tube demister and its demister method

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Embodiment

[0031] Such as Figures 1 to 4 shown. The invention discloses a low-resistance air-cooled elliptical tube demister, which comprises an air-cooled elliptical tube bundle defogging system arranged on the top of a desulfurization tower, and a (passive ) Cooling air automatic diversion system;

[0032] The air-cooled elliptical tube bundle defogging system consists of a tube row array composed of elliptical tube bundles 1 with multi-layer dot matrix staggered cross-section.

[0033] The major axis B of the cross-section of the elliptical tube bundle 1 is 1.5 to 2.5 times the minor axis A; the flue gas flow enters from the bottom of the tube row array, and then is discharged from the top of the tube row array.

[0034] The cooling wind automatic deflector system is composed of a plurality of wind deflectors 4 respectively arranged at the windward end 11 and the leeward end 12 of the tube row array;

[0035] Each wind deflector 4 includes a support rod 10, a deflector 9 with a tr...

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Abstract

The invention discloses a low-resistance air-cooled elliptical tube type demister and a demisting method thereof, comprising an air-cooled elliptical tube bundle defogging system arranged on the top of a desulfurization tower, an automatic cooling air guide for introducing cold air into the elliptical tube bundle flow system. The air-cooled elliptical tube bundle defogging system includes a multi-layer dot matrix staggered arrangement of tube row arrays with an elliptical cross-section; The nozzles for jetting water flow; the automatic cooling wind guide system includes a plurality of wind deflectors respectively arranged in the windward end and the leeward end of the pipe row array in the perennial wind direction. This demister combines inertial separation and condensation separation. It has the characteristics of high fog and dust removal efficiency, low resistance, low energy consumption, not easy to scale and block, and water saving. It can effectively reduce the "gypsum rain" generated after flue gas desulfurization. ".

Description

technical field [0001] The invention relates to flue gas demisting in a wet flue gas desulfurization device, in particular to a low-resistance air-cooled elliptical tube type demister and a demisting method thereof. Background technique [0002] A large amount of SO produced in the production process of electric power, metallurgy, cement, petrochemical and other industries 2 It has brought serious acid rain hazards and smog weather, and also caused great governance pressure. At present, limestone-gypsum wet flue gas desulfurization technology is widely used in China. However, the flue gas treated by the desulfurization tower entrains certain mist droplets, which not only contain water, but also dissolve sulfuric acid, sulfate, SO 2 and other fine particles. If not removed, these mist particles will deposit on the inner surface of the outlet flue of the desulfurization tower, causing corrosion and blockage of the equipment; or they will be discharged to the chimney with th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/00B01D45/04B01D45/08B01D5/00
Inventor 刘定平袁丹珏王玲
Owner SOUTH CHINA UNIV OF TECH
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