Simulation And Experiment Of Using Jet Impingement Device To Remove Industrial Oil Mist

With the continuous improvement of people’s living standards,the requirements for the quality of life are getting higher and higher,and at the same time,more and more attention is paid to the concept of healthy life.When it comes to healthy living,air quality and health have been constantly mentioned in recent years.It is true that the continuous progress of society and the continuous improvement of the level of industrialization have brought us a comfortable and convenient life,but also brought some inevitable pollution.In order to improve environmental problems,countries that optimize air quality have also continuously introduced various policies to pursue green waters and mountains and improve the working environment of workers.This dissertation mainly focuses on the environmental problems of the factories,using the jet impact module to remove industrial oil mist.First,it briefly introduces its structure and working principle,and then establishes a numerical simulation model by selecting a suitable turbulence model,proper meshing and setting of boundary conditions.Since the numerical simulation process involves multiphase flow motion,it is related theories are also introduced.Through simulation,the impact distance,air volume,and the number of nozzles on the characteristics of the wind flow field were studied separately,and the flow characteristics and velocity distribution of the flow field under different structural parameters were obtained.From point of view of pressure,the less impact distance,the more air volume and impact speed,the higher pressure different is,meanwhile.For inner flow,because of blocking of impact plate,there will be “high pressure wall” and “high speed wall” between each nozzle,both is enhanced when near the impact plate,and slowly dissipated while close to pore plate.The result of particle simulation shows that different escape rate of PM2.5 in different impact distance,and there is a maximum mean value of 10% between 10 mm and 20 mm,and there is a linear relationship between escape rate of PM10 and impact distance,the more impact distance,the less escape rate.Both escape rate of PM2.5 and PM10 almost linearly decrease when increase of number of nuzzles.Through the experimental design,the accuracy of the simulation results was compared,the impact distance,the number of nozzles,and the air volume on the removal effect of industrial oil mist were analyzed,and issues such as whether the oil mist concentration would affect the removal effect were discussed.Match the different effects of impact distance,air volume and number of nozzles in order to obtain the best combination to achieve the best oil mist removal effect.At the end of the article,through simulation and experimental results and exploration,the experimental structure was improved and verified and compared with the improved structure for better oil mist removal effect.