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| Numerical simulation of fan nozzle of guide board type cleaning jet flow field |
| YANG Yu1, QIU Tao2 |
| 1.School of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; 2.Petroleum Machinery Factory, Bohai Equipment Manufacturing Co. Ltd., Renqiu, Hebei 062550, China |
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Abstract In order to improve the cleaning efficiency and the cleaning quality of guide plate type fan nozzle jet, and optimize its structure, several 3D medels of the fan nozzle jet at different diversion distances,diversion angles and cleaning distances are established by using Pro/E software, which is aimed at the flow field characteristics of fan nozzle jet only around water. Based on the standard k-ε model, the numerical simulation of jet flow field is conducted for its flow velocity and pressure by the ANSYS Workbench software. The changing regularity of these models′ jet flow characteristics under the same boundary and initial condition is analyzed, which is beneficial to the design and optimiztion the guide board type fan nozzle. The results show that with the increase of inclination θ, the blowing pressure on the cleaned piece gradually decreases; on the contrary the clean range increases. As cleaning distance increases, the pressure on the cleaned part axis gradually decreases. And the clean range slightly increases. Thus, the cleaning effect of fan nozzle of guide board type is the best under the condition that the faninclination is 20°, the fan striking distance is 15 mm or 20 mm and installation height of nozzle is between 80 mm and 120 mm.The conclusion can provide reference for the design and optimization of fan nozzle.
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Received: 09 January 2016
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