High-pressure small-flow centrifugal fan designed by applying computational fluid mechanics

The utility model relates to the technical field of fans, in particular to a high-pressure small-flow centrifugal fan designed by applying computational fluid mechanics, which comprises a fan shell, an air inlet and an air outlet. One side wall of the fan shell is in through connection with an air inlet, and the annular wall of the fan shell is in through connection with an air outlet. The impeller further comprises a blade group; the blade set is formed by long blades, short blades and the air inlet which are coaxially distributed at equal angles at intervals, and the long blades, the short blades and the air inlet are all fixed to the inner wall of the draught fan shell. The front-bent long and short blades are adopted, the pressure coefficient is increased, and efficiency is improved. 一种应用计算流体力学设计的高压小流量离心风机，本实用新型涉及风机技术领域，它包含风机外壳、进风口和出风口；风机外壳的一侧壁贯通连接有进风口，风机外壳的环壁上贯通连接出风口；它还包含叶片组；所述叶片组由长叶片和短叶片与进风口同轴心等角度相间分布而成，且均固定在风机外壳的内壁上。采用前弯长短叶片，提高压力系数，提高效率。