An air-cooled airfoil type elliptical tube demister and its demister method

A demister and airfoil technology, which is applied to chemical instruments and methods, separation methods, and separation of dispersed particles, can solve problems such as insufficient flushing, low dust removal efficiency, and large resistance to flue gas flow, so as to save operating costs , high-efficiency flushing method, and the effect of increasing the impact rate

Active Publication Date: 2017-12-01
SOUTH CHINA UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of low efficiency of fog and dust removal, large resistance of flue gas flow and insufficient flushing of traditional mist eliminators, and to provide an air-cooled airfoil type elliptical tube type mist eliminator and its demisting method

Method used

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  • An air-cooled airfoil type elliptical tube demister and its demister method
  • An air-cooled airfoil type elliptical tube demister and its demister method
  • An air-cooled airfoil type elliptical tube demister and its demister method

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Embodiment

[0032] Such as Figures 1 to 5 shown. The invention discloses an air-cooled airfoil elliptical tube demister, which comprises an airfoil elliptical tube bundle defogging system arranged on the top of a desulfurization tower, and a cooling wind automatic diversion system;

[0033] The airfoil-shaped 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, and arc-shaped wings 1-1 are arranged symmetrically on both sides of each elliptical tube bundle 1; Both ends of each elliptical tube bundle 1 are respectively supported on the tube sheet 2 .

[0034] 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, and the radius C of the circle where the arc-shaped wing 1-1 is located is 0.8 to 1.5 times the minor axis A; It enters at the bottom of the tube array and exits from the top of the tube row array.

[0035] The cooling...

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Abstract

The invention discloses an air-cooled airfoil type elliptical tube demister and its demisting method, comprising an airfoil elliptical tube bundle defogging system arranged on the top of a desulfurization tower, and a device for introducing cold wind into the airfoil elliptical tube bundle defogging system Cooling air automatic diversion system. The airfoil elliptical tube bundle defogging system is composed of a multi-layer dot matrix staggered arrangement of tube bundles with an elliptical cross-section, and arc-shaped wings are symmetrically arranged on both sides of each elliptical tube bundle; the directional circulation flushing water system includes multiple A layered, array arrangement of nozzles that spray water downwards between the airfoil elliptical tube bundles and nozzles that spray water upwards directed along the inner tangent of the arc-shaped wings; the cooling wind automatic diversion system includes respectively arranged at the windward end of the tube row array and multiple wind deflectors on the leeward end. The demister combines inertial separation, centrifugal separation and condensation separation. It has the characteristics of high fog and dust removal efficiency, low energy consumption, and no dead angle for flushing. It can effectively reduce the "gypsum rain" produced 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 an air-cooled airfoil type elliptical tube type demister and a demisting method thereof. Background technique [0002] During the power production process of coal-fired power plants converting primary energy coal into secondary energy, air pollutants SO will be produced. 2 . SO 2 The large amount of emissions has brought serious acid rain hazards and smog weather, and also caused great pressure on governance. Metallurgy, cement, petrochemical and other industries also have the pressure of flue gas desulfurization. Therefore, supporting the construction of desulfurization devices and improving desulfurization technology are of great significance to the sustainable development of coal-fired enterprises. [0003] At present, limestone-gypsum wet flue gas desulfurization technology is widely used in China. However, the flue gas treated by the desulfu...

Claims

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Application Information

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