Light-medium high-energy-head compressor model level with flow coefficient of 0.0097 and method for designing light-medium high-energy-head compressor model level
A flow coefficient, light medium technology, applied in the field of compressors, can solve the problems of unfavorable rotor stability, difficult product design, low type efficiency, etc., and achieve the effect of high energy head coefficient, small span and large wheel-to-hub ratio.
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[0036] see figure 1 , a light medium high-energy head compressor model stage with a flow coefficient of 0.0097 provided by the embodiment of the present invention is suitable for the modular design of light medium compressor products, including impeller 1, vane diffuser 2, bend 3 and reflux device 4 , where the impeller 1 is located at the inlet of the model stage, the outlet of the impeller 1 is provided with a vane diffuser 2, and the reflux device 4 is located at the outlet of the model stage, and the vane diffuser 2 and the reflux device 4 are connected by a bend 3 Pass. The machine Mach number M that can be used by this model level u2 =0.2-0.65, design point flow coefficient Φ 1 =0.0097, the design point energy head coefficient τ=0.72, the variable efficiency η under the design flow coefficient working condition at each Mach number pol =0.789, the applicable flow range is 0.75~1.57 of the design point. Specific performance curves such as Figures 16-18 shown.
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