基于FLUENT的高壓高速螺旋轉(zhuǎn)子泵內(nèi)部流場(chǎng)分析
[Abstract]:Aim to analyze the internal flow field behavior of high pressure high speed spiral rotor pump during operation, and to provide a theoretical basis for the structure optimization of high pressure high speed screw rotor pump. Methods the three-dimensional model of high pressure and high speed spiral rotor pump was established by Solid Works. The internal flow field under high pressure and high speed operation was simulated by FLUENT, and the pressure cloud diagram was obtained. The effect of rotation speed on the maximum pressure and negative pressure of oil film was compared when there were no air holes. Results the cavitation had no effect on the meshing pressure in high pressure region. The maximum pressure at gear engagement, the maximum negative pressure at gear engagement and the occupation rate of air in hydraulic oil increase with the increase of rotational speed. When the speed is 12 000 r/min, The air occupancy is 12.81 and the meshing pressure can be up to 37. 5 MPa, as high as 1. 5 times the outlet pressure. Conclusion the cavitation prevents the leakage of some teeth top clearance, and it has positive significance for improving the rotor stability. The maximum pressure occurs at the meshing point of the rotor of the screw rotor pump, which makes the rotor vibrate violently and reduces the stability of the screw rotor pump.
【作者單位】: 淮安信息職業(yè)技術(shù)學(xué)院;江蘇電子產(chǎn)品裝備制造工程技術(shù)研究開發(fā)中心;
【基金】:2015年江蘇省高級(jí)訪問學(xué)者項(xiàng)目(2015FX010)
【分類號(hào)】:TB486
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