Substantiation of Parameters and Estimation of Strength for Basic Structural Units of Axial Tunnel Fan
N. A. POPOV, A. M. KRASYUK, E. YU. RUSSKY, I. V. LUGIN
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: осевой тоннельный вентилятор, прямой кольцевой диффузор, геометрические параметры вентилятора и лопаток, аэродинамические параметры вентилятора, инерционно-массовые характеристики колеса, динамика и прочность лопаток, axial tunnel fan, direct annular diffuser, fan and blades geometry, aerodynamic parameters, inertia and mass characteristics, impeller, blade dynamics and strength
Abstract
The authors determine basic parameters for elements of axial tunnel fan VO-21(t) with direct annular diffuser. The algorithm is proposed for calculating aerodynamic parameters of the axial fan using ANSYS CFX program, which allows modeling, computation and analysis of effect exerted by various parameters of the fan air section on the fan aerodynamics. It is found that it is possible to reduce the fan impeller metal consumption and inertia moment by redistributing normal inertia force of blades from the boss to the disks. The admissible impeller velocity is related with the thickness of the impeller disks.
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