W-type single-stage cantilever vortex pump structure: Closed vortex pump with open flow channel is different from the open vortex pump usually closed flow channel, the inlet and outlet openings in the blade root, and In addition to closed-type flow channel structure, the open-type vortex pump also has a centripetal flow channel structure. Both structures have self-suction. W-type single-stage cantilever vortex pump features 1) W type single-stage cantilever vortex pump with closed or open-hearted flow channel with self-priming ability can be used to transport gas-containing liquid Type W single-stage cantilevered vortex pump self-priming process by the suction, compression, When the pump is started, the liquid in the vane groove of the suction inlet is thrown into the vane groove of the flow channel to form a vacuum, and the gas is sucked in by the suction inlet. As the pressure of the fluid in the impeller is increased, the pressure of the gas The density is compressed in the root of the blade, the volume continues to shrink; the discharge opening at the end of the flow path and close to the root of the blade, when the liquid to the end of the flow channel will rapidly into the direction of the blade into the groove, the gas squeeze from the discharge port The liquid stays in the vane groove with the impeller (2) W-type single-stage cantilever vortex pump cavitation than closed vortex pump good W-type single-stage cantilevered vortex pump inlet opening in the blade groove root side, The liquid flows into the root of the groove at the side of the blade, and then the flow velocity in the flow channel thrown off by the centrifugal force is less than the uniform impact loss. (3) The efficiency of the W type single-stage cantilever vortex pump is relatively low, generally 20% -35% Among them, the stainless steel vortex pump with closed runner can only reduce the impact loss due to the rapid flow of liquid from the runner to the discharge outlet on the side of the discharge port, and the efficiency is generally only 20% ~ 27% Flow in the discharge side of the flow, the efficiency increased to 27% to 35%. (4) W-type single-stage cantilever vortex pump is generally single or multi-stage vortex pump is often used to transport volatile media (such as Gasoline, alcohol, etc.), as well as small flow, high lift requirements, but less demanding on cavitation performance or require reliable work and self-suction capacity of the occasion (such as mobile fire pump), but not for the delivery of viscosity greater than 115mPas The medium (otherwise the pump head and efficiency will drop drastically) and contain solids Grain media.
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