Submersible cutting sewage pump with efficient hydraulic performance
A sewage pump, high-efficiency technology, applied to special fluid pumps, parts of pumping devices for elastic fluids, pumps, etc., can solve the problem of motor burnout of motor stator windings, blockage of pumping medium suction, and pumping lift drop and other problems, to achieve the effect of improving suction performance, avoiding winding, and widening high-efficiency area
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[0022] Embodiment: The structure of the submersible cutting sewage pump with high-efficiency hydraulic characteristics in this embodiment is as attached figure 1 As shown, it mainly includes a submersible motor 1. Its main feature is that the submersible motor 1 is connected to the pump body (volute 10) below it through a connecting section (lower bearing seat 7), and is connected to the pump at the connecting section (lower bearing seat 7). A cooling and lubricating oil chamber is formed between the body (volute 10); a high-efficiency large flow channel semi-open impeller 9 with a rear cover is installed in the lower center of the pump body (volute 10); see Figure 5 , 6 , The inlet side 903 of the 9 blades of the high-efficiency large flow channel semi-open impeller adopts a 30-45° large inclination guide design from the rear cover to the front cover. The center line of the outlet flow channel of the 9 blades of the impeller and the pump body (worm The center line of the radial...
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