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Study of Combined Directing Fixed Valve Trays (Ⅱ)

Author: HuangHeng
Tutor: LiYuAn
School: East China University of Science and Technology
Course: Chemical Engineering
Keywords: Combination of solid valve guide plate (Ⅱ type ) Hydrodynamic Performance Mass transfer performance Aspen Plus simulation
CLC: TQ053.5
Type: Master's thesis
Year: 2012
Downloads: 41
Quote: 0
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Abstract


Plate tower is an important chemical mass transfer equipment , commonly used in industrial production is sieve tray and plate type valve trays , fixed valve trays made ​​in recent years to integrate the advantages of both , simple structure, low pressure drop , anti-clogging ability, more and more widely . Based on the research of existing fixed valve trays on the proposed combination of solid valve guide plate (Ⅱ type ) , and its hydrodynamic performance and mass transfer performance tests. The application of air - water system, 1500mm × 450mm rectangular tower measuring a combination of solid valve guide plate (Ⅱ type ) hydrodynamic performance indicators - tray pressure drop , entrainment and leaks , they studied with the valve hole momentum factor, flow strength , high and outlet weir plate spacing changes in the law , examines the trapezoid -oriented solid valve guides solid combination in different proportions (Ⅱ type ) operating performance of the valve plate ; application of air - water -C02 system, combination of solid valve guide plate (Ⅱ type ) were mass transfer performance tests. Experimental results show that the combination of solid valve guide plate (Ⅱ type ) with good hydrodynamics and mass transfer performance. Different trapezoidal solid valve guide has a certain effect on the proportion of Hydrodynamic performance and mass transfer performance in a large flow strength , trapezoidal solid valve guide plate has a larger proportion of better operating performance ; hydrodynamic experiments to determine the different trapezoidal -oriented solid flow valve suitable proportions intensity range , can be adapted to different industrial production gas-liquid load requirements ; experimental results related data obtained tray pressure drop , entrainment rate and speed of the leak hole the correlation for the trays provide a design basis for engineering applications . Using Aspen Plus software for simulation of gas washing tower , Hydrodynamic get all the data . Accounting results show that using a combination of solid valve guide plate (Ⅱ type ) , tray pressure drop lower , the smaller the amount of liquid entrainment , fully able to meet the requirements of industrial applications .

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CLC: > Industrial Technology > Chemical Industry > General issues > Chemical machinery and apparatus, equipment > Chemical general machinery and equipment > Tower chemical equipment
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