Multi-sheath atmospheric chemical laminar flow reaction system

A reaction system and reaction technology, applied in chemical/physical/physical chemical fixed reactors, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of large interference in the reaction process, inconvenient disassembly and cleaning, long residence time, etc. , to achieve the effect of short residence time, convenient disassembly, and increased airflow stability

Active Publication Date: 2018-08-24
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

[0004] Purpose of the invention: The purpose of the invention is to provide a multi-sheath atmospheric chemical laminar flow reaction system to solve the problems of long reaction residence time in the existing reaction system, great interference to the reaction process, resulting in experimental errors, and inconvenient disassembly and cleaning problems

Method used

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  • Multi-sheath atmospheric chemical laminar flow reaction system
  • Multi-sheath atmospheric chemical laminar flow reaction system
  • Multi-sheath atmospheric chemical laminar flow reaction system

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Such as Figure 1-3 As shown, the multi-sheath atmospheric chemical laminar flow reaction system includes a reaction body and an insulation tube 1, the reaction body is nested in the insulation tube, the reaction body includes a three-layer reaction quartz tube 2, and both ends of the insulation tube 1 are provided with water inlets and outlets 6 , forming a water cycle through the water inlet and outlet, providing a constant temperature water bath to maintain a constant temperature in the reaction system to ensure that the reactants will not be affected by temperature changes during the reaction. The outermost insulation tube has an opening at the front end and a rear end, one of One is the water inlet and the other is the water outlet, and it is connected with the constant temperature water bath device to achieve the purpose of circulation. During the experim...

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Abstract

The invention discloses a multi-sheath atmospheric chemical laminar flow reaction system. The system comprises a reaction main body and a heat preservation tube, the reaction main body is nested in the heat preservation tube, the reaction main body comprises three layers of reaction quartz tubes, one ends of the three layers of reaction quartz tubes are fixedly connected through a reducing joint,air inlets are formed in one ends of the reaction quartz tubes at the two inner layers, hexagonal spokes are arranged at the other ends of the reaction quartz tubes, and an air outlet is formed in oneend of the reaction quartz tube at the outermost layer. According to the system, reactants have short reaction residence time, experimental conditions can be changed as needed, the reaction tubes aremade of quartz materials and inert and have no holes, the light transmission is good, experimental interference is effectively reduced, multi-stage reaction can be simultaneously performed, cross interference is prevented, practicability is improved, the reaction tubes are provided with the hexagonal spokes to increase airflow stability and prevent turbulence, the system is convenient to disassemble, and manufacturing and maintenance costs are effectively reduced.

Description

technical field [0001] The invention relates to atmospheric aerosol monitoring and control, in particular to a multi-sheath atmospheric chemical laminar flow reaction system. Background technique [0002] Air pollutants are mainly divided into primary pollutants and secondary pollutants according to the source of emission. Primary pollutants are directly discharged from the emission source. Secondary pollutants are formed by secondary transformation of primary pollutants in the atmosphere through chemical reactions. Generally, their toxicity ratio Primary pollutants are greatly enhanced. The new particle generation event is a process in which gaseous precursors are nucleated to form new particles through the process of gas particle transformation, which is the most important way of particle formation except primary emission particles. The latest model simulation results show that the average contribution of new particle formation events to the global particle number concent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L7/02B01J19/24B01J19/02G01N15/06
CPCB01J19/02B01J19/242G01N15/06B01L7/02G01N2015/0681Y02A50/20
Inventor 马嫣王兴郑军
Owner NANJING UNIV OF INFORMATION SCI & TECH
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