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Study on Jet Stirring Fluid Dynamics of Photocatalytic Reactor and Its Structure Optimization

Author: DongZhiQun
Tutor: WangXiaoJing
School: Tianjin University
Course: Chemical Process Equipment
Keywords: Photocatalytic Reactor Jet stirring Simulation Structural Parameter Optimization
CLC: TQ052.5
Type: Master's thesis
Year: 2007
Downloads: 81
Quote: 0
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Abstract


Photocatalytic alcohol according to traditional Chinese medicine notoginseng extract in addition to the the the arsenic reaction conditions , the photocatalytic reactor design principles and structure of the argument ; characteristics for the Department of the reactants and the operation process and its impact on special requirements, development of the structure suitable for the above process three - dimensional jet stirrer, a selection of the structural type of the jet stirrer , functional and structural parameters analyzed . Stirred mixing mechanism and jet theory -based , process characteristics and operating requirements photocatalytic reactor flow field evaluation methods and jet agitator structure parameter optimization program . The paper by means of computational fluid dynamics analysis , through reasonable model simplification , and the use of k-ε two-equation model of the single phase jet flow field characterization of photocatalytic reactor hydrodynamic model and simulation through different inlet velocity fluid particle velocity change of the turbulent state of the flow field as a whole and the total pressure drop analysis to determine the reasonable value of inlet flow . Flow field behavior of the jet agitator different spray hole size in the jet agitator main structure of the same dimensions , the simulation analysis , the behavioral characteristics of the flow field in each program , and to determine the main factors that affect the distribution of the flow field , a relative optimization of the number of injection holes and the size of the injection hole , and a more appropriate distribution of traffic . On the basis of the size of the nozzle holes in this optimization , the paper also adjust the parameters of the structure of the jet agitator . By analyzing the flow field characteristics of three different spray hole spacing , the overall trend the spray hole spacing to change the impact of the jet flow field and its impact on the process operation , and to determine the three-dimensional the jet agitator relatively optimization spray hole spacing and structure parameters . Through the above photocatalytic reactor simulation analysis and evaluation of the flow field , the relative optimized three-dimensional jet agitator structural design and operating parameters , applied directly to the actual production process of industrial the photocatalytic reactor equipment design and development , field equipment car running appraisal , a complete success. This article special process equipment design and development methods also provide a useful reference for other similar process .

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CLC: > Industrial Technology > Chemical Industry > General issues > Chemical machinery and apparatus, equipment > Chemical reaction process machinery and equipment > At room temperature with high temperature reactors
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