Structure Optimization of High Pressure Water Cleaning Nozzle for Aluminum Alloy Car Body Based on Orthogonal Experiment
Dust suppressants and other complex compounds adhering to the aluminum body can make the body of the car very serious pollution.The high pressure water jet cleaning method can effectively remove the adhesive compounds on the surface of aluminum alloy vehicle body.By analyzing the jet field distribution,jet outlet velocity,maximum wall static pressure,and cleaning width under the same pressure value range of cylindrical,conical,Venturi and cosine nozzles,the best cleaning performance of cosine nozzles and conical nozzles are obtained.Design of five-factor and four-level orthogonal test table based on orthogonal experiment method.The best structural parameters of cosine nozzles under clear pressure are as follows:the inlet diameter is 40 mm,Outlet diameter is 20 mm,The transition radius is 40 mm,The length of the exit segment is 25 mm,The ratio of transition to cosine length is 4.Based on the modeling of the optimal nozzle structure parameters,the exit velocity of high pressure water under three groups of pressure values is 2％higher than that before optimization,and the optimization effect decreases with the increase of inlet pressure.Under the optimized nozzle structure parameters,it is further calculated that when the inlet pressure is 10 MPa,the target distance is set to 300 mm,which can achieve better cleaning effect and energy saving.
aluminum alloy car bodyhigh-pressure water jetsorthogonal testnozzlestructural optimization
万方数据
维普
