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Structural Optimization And Experimental Analysis Of Washing Tower

Posted on:2020-12-27Degree:MasterType:Thesis
Country:ChinaCandidate:X L XuFull Text:PDF
GTID:2381330578965953Subject:Instrument Science and Technology
Abstract/Summary:PDF Full Text Request
Washing towers are widely used in the chemical and environmental industries.Exhaust scrubbers are an extremely important part of environmentally friendly processing equipment.Almost all environmentally friendly equipment requires washing tower.The function of the washing tower is to remove the impurities in the gas by solvent reaction,thereby achieving the purpose of "cleaning" the exhaust gas.How to control the polluting gases emitted in the manufacturing and processing sectors is a problem that every country and region will face.The generation of waste gas involves all aspects of chemical production.If the consequences of direct exhaust gas are not addressed,it will cause irreparable pollution to the atmosphere,and the human body inhaling these untreated exhaust gases will also have great health problems.In view of the shortcomings of the existing water-gas separation efficiency of the washing tower,in order to optimize the structure of the washing tower,improve the water-gas separation efficiency of the washing tower,and reduce the energy consumption under the same conditions,a novel structure washing tower is designed.The novel washing tower designed in this paper not only utilizes the gravitational potential energy of water,but also combines the kinetic energy of water to carry out water-gas separation.On the basis of fully taking into account the two,the structure of the washing tower is optimized to solve the existing scrubber.The problem of large volume and low efficiency of water vapor separation.In this paper,vertical and horizontal washing tower models are established,and simple flow path analysis is carried out by setting the conditions of the model.At the same time,it explores the relevant characteristics of the new washing tower,combines the fluid analysis with the structural analysis,and explores the relationship between the baffle and the angle of the airflow.By setting the 30° and 60° angles with engineering significance as the contrast,and verifying the deflector Based on the grid-independent property,it is found that the deflector and the exhaust gas flow in a straight-pair manner can bear the effect of diversion at an angle of 45°.In addition,the DPM model in Fluent is used to simulate the spray process of the new washing tower.It is found that the washing tower designed in this paper has a good effect on the wet exhaust gas before the next step,and the dehumidification rate is over 60%.It shows that the dehumidification effect is good under the action of initial kinetic energy and gravity of the exhaust gas.In addition,the seepage experiment simulation of the new washing tower packing layer was carried out,and the Porus simulated real packing layer was set up in four groups of porous media.The simplified physical model was found to reflect the reasonable structure of the designed washing tower.At the same time,through the establishment of experimental test platform,combined with experimental data and finite element simulation results,it is proved that the structure design of the new washing tower is consistent with the simulation results,which is in line with the design characteristics.
Keywords/Search Tags:Washing tower, Finite element method, Water-gas separation, Fluent, Grid division
PDF Full Text Request
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