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Aerosol nucleation turbulent flow tube reactor capable of continuously adjusting reaction time

A reactor and flow tube technology, applied in the field of atmospheric chemical experiment research, can solve problems such as the loss of smoke chamber walls, and achieve the effects of continuous adjustment of reaction time, easy maintenance, and easy repeatability of experiments

Pending Publication Date: 2021-06-08
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Smog chamber experiments often have some limitations. Generally, the wall loss of smog chambers is serious. Experimental research on trace gas chemistry is often carried out under conditions far greater than real atmospheric concentrations, which severely limits the application of reaction results to chemical mechanism inferences.

Method used

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  • Aerosol nucleation turbulent flow tube reactor capable of continuously adjusting reaction time
  • Aerosol nucleation turbulent flow tube reactor capable of continuously adjusting reaction time
  • Aerosol nucleation turbulent flow tube reactor capable of continuously adjusting reaction time

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Embodiment 1

[0041] Aerosol nucleation turbulent flow tube reactor with continuously adjustable reaction time, the structure of which is figure 1 As shown, its dimensions are as image 3 As shown, where the dimensioning unit is mm. like figure 1 As shown, the aerosol nucleation turbulent flow tube reactor that can continuously adjust the reaction time is a shell structure made of quartz glass, mainly composed of an inner tube, a pullable sampling tube 1, a pullable sampling tube 10 and The outer tube is composed of components such as the inner tube. The inner tube is a tubular reaction chamber with a total length of 130cm, an inner diameter of 2cm, and an aspect ratio as high as 65. The sampling area (3) of the sampling position is composed of three integrated parts, which is an open integrated structure integrating gas mixing, aerosol nucleation, and aerosol sampling. Wherein, the left end of the inner tube is the sampling end, and the right end of the inner tube is the sampling end; t...

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Abstract

The invention relates to an aerosol nucleation turbulent flow tube reactor capable of continuously adjusting reaction time. The reactor is characterized by comprising an inner tube with the length-diameter ratio of 50-100, a drawable sample injection tube, a sample injection port sealing end cover, a sample outlet sealing end cover and a drawable sampling tube, wherein one end of the inner tube is a sample inlet end, and the other end of the inner tube is a sample outlet end; the inner tube comprises three integrated parts, namely a sample introduction area capable of adjusting a sample introduction position, a nucleation area and a sampling area capable of adjusting a sampling position; the sample inlet end is positioned in the sample inlet area, and the sample outlet end is positioned in the sampling area; the sample injection port sealing end cover is arranged at the sample injection end of the sample injection area, and the drawable sample injection tube is matched with the sample injection port sealing end cover for use; and the sample outlet sealing end cover is arranged at the sample outlet end of the sampling area, and the drawable sampling tube is matched with the sample outlet sealing end cover for use. The reactor can be used for researching kinetics of aerosol nucleation, and has the characteristics of capability of continuously adjusting reaction time, small wall loss, easiness in operation, easiness in repeated experiment and easiness in maintenance.

Description

technical field [0001] The invention belongs to the research field of atmospheric chemistry experiments, in particular to an aerosol nucleation turbulent flow tube reactor capable of continuously adjusting reaction time. Background technique [0002] The haze problem is a serious environmental problem faced by our country in recent years. Haze itself is a kind of aerosol, among which PM2.5, that is, liquid or solid aerosol particles with a diameter less than or equal to 2.5 microns dispersed in the air, has become the main pollutant of the atmospheric environment. Atmospheric aerosol particles have important effects on the Earth's atmospheric circulation system, including air quality, weather, global climate, ecosystems, and public health. Among them, aerosols affect climate through direct radiation and aerosol-cloud interaction, that is, indirect radiative forcing. According to the report of the Intergovernmental Panel on Climate Change, indirect radiative forcing is still...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24B01J13/00G01N15/00
CPCB01J19/2415B01J19/0053B01J13/0095G01N15/00
Inventor 黄伟王春雨姜帅
Owner UNIV OF SCI & TECH OF CHINA
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