摘要
为了研究动静涡旋的表面形貌对涡旋压缩机微间隙泄漏的影响,利用缝隙流动中的N-S方程和分形理论,建立微间隙气体泄漏量的分形模型.研究气体泄漏量与动静涡旋表面分形参数之间的关系,对平衡轴向气体力和载荷力的背压力进行分形研究.研究结果表明:涡旋压缩机轴向间隙密封必须要满足一定的条件;存在使气体泄漏量达到最小的最佳分形维数;通过改变动静涡旋表面分形参数可以有效地降低气体的泄漏量.
In order to investigate the influence of surface morphology of stationary and orbital scrolls on the leakage through the micro-clearance of the scroll compressor,fractal model of gas leakage through micro-clearance was set on the basis of Navier-Stokes equation for the flow through a clearance and fractal theory.The relation of gas leakage with the fractal parameters of the surfaces of the both scrolls was studied and the fractal investigation of the back pressure was carried out to balance the axial gas force and load.Investigation result showed that the axial clearance sealing of scroll compressor should satisfy a certain condition and there would be an optimum fractal dimension to make the gas leakage minimal.By changing the surface fractal parameters of both scrolls,the gas leakage could effectively and the static scroll surface contact can reduced.
出处
《兰州理工大学学报》
CAS
北大核心
2013年第6期45-48,共4页
Journal of Lanzhou University of Technology
基金
国家自然科学基金(50975132
51265026)
浙江省自然科学基金(Y1080079)
关键词
涡旋压缩机
泄漏量
最佳分形参数
轴向间隙
scroll ompressor
leakage
optimum fractal parameter
axial clearance
