Brief introduction of the volute principle of the opener

     The volute of the centrifugal fan of the opener is generally composed of two side plates and a volute plate, the air inlet of the side plate and the air tongue of the shell plate. The air inlet is guided to the impeller, and the air sent by the impeller is collected in the housing. At the same time, a part of the movement should be converted into static pressure, and the air is guided to the air outlet along the worm. The working principle of the shell is as follows:

     After entering the volute, the air no longer gains energy, so the air acts on the volute through the vortex motion. It can be known from fluid mechanics that the moment of momentum of an ideal fluid does not change during free vortex motion.

     It can be known from the principle of fluid continuity that when the fluid flows steadily in the pipeline, the mass of the fluid flowing through the cross section per unit interval is constant.

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