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A device for water vapor phase change condensation to promote the removal of PM2.5 fine particles

A technology for phase transition of fine particles and water vapor, which is applied in the separation of dispersed particles, chemical instruments and methods, and the use of liquid separation agents, etc., can solve the problems of large amount of steam and unsatisfactory removal effect, and achieves simple removal and low cost. , the effect of simple device structure

Inactive Publication Date: 2016-03-16
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Many studies at home and abroad have shown that steam phase change and condensation to promote the removal of PM2.5 fine particles is one of the most effective ways, but the removal effect of the existing devices that use steam phase change to promote PM2. Large amount of steam

Method used

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  • A device for water vapor phase change condensation to promote the removal of PM2.5 fine particles
  • A device for water vapor phase change condensation to promote the removal of PM2.5 fine particles
  • A device for water vapor phase change condensation to promote the removal of PM2.5 fine particles

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Embodiment Construction

[0013] The device for the removal of PM2.5 fine particles by water vapor phase change and condensation of the present invention is further described below in conjunction with the accompanying drawings. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention The modifications made by those skilled in the art to various equivalent forms of the present invention all fall within the scope defined by the appended claims of the present application.

[0014] The device for water vapor phase change and condensation to promote the removal of PM2.5 fine particles, see figure 1 and figure 2 , including interconnected first removal tower 1 and second removal tower 2; each removal tower is provided with a flue gas inlet (11, 21) at the bottom and a flue gas outlet (12, 22) at the top, each Two steam inlets (13, 23) are respectively arranged on the si...

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Abstract

The invention provides a device for accelerating desorption of PM2.5 (Particulate Matter 2.5) fine particulate matters by utilizing vapor phase change and condensation. The device comprises a group of desorption towers which are sequentially connected, wherein flue gas inlets are formed in the bottoms of the desorption towers, flue gas outlets are formed in the tops of the desorption towers, and stream inlets are formed in the side walls of the desorption towers. According to the device, the structure is simple, and the cost is low; and by arranging a group of the desorption towers which are sequentially connected, the supersaturation degrees of the desorption towers are effectively controlled, so that the PM2.5 fine particulate matters in the gas are desorbed step by step; and the efficiency is high, and the energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of removing fine particles in flue gas, and in particular relates to a device for promoting the removal of PM2.5 fine particles through water vapor phase change condensation. Background technique [0002] PM2.5 refers to fine particles with an aerodynamic diameter of less than 2.5m. Although PM2.5 is only a small component in the earth's atmosphere, it has an important impact on air quality and visibility. It has been proved that PM2.5 is an important cause of haze weather. Studies have found that the number of outpatient visits for patients increases by 10% to 15% when encountering haze weather. Academician Zhong Nanshan said that PM2.5 will reach people's lungs through the respiratory tract, induce lung sclerosis, asthma and bronchitis, and even cause cardiovascular disease. disease. More importantly, because many harmful and toxic substances are adsorbed in PM2.5, they enter the blood through the alveol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D47/12
Inventor 张军徐俊超盛昌栋周璐璐
Owner SOUTHEAST UNIV
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