Water pump water suction device with sand discharging function

Abstract

The utility model relates to a water pump water suction device with a sand discharging function, which comprises a water collecting pipe, a water collecting area, a rotational flow water inlet area, a sand collecting area and a sand discharging pipe, the water collecting pipe is connected with a water pump water suction pipe, the water collecting area is a horn mouth which is contracted along the water flow direction, the rotational flow water inlet area is cylindrical, and the upper part and the lower part of the cylinder are respectively connected with the water collecting area and the sand collecting area. A plurality of water inlets are formed in the side face of the cylinder and connected with a flow guide groove which has a contracted sectional area and can generate ascending rotational flow, and inflow water is guided to the center of the rotational flow water inlet area. The sand collecting area is in a conical hopper shape, is positioned below the rotational flow water inlet area and is used for collecting impurities in a water inlet rotational flow state, and settled silt flows to a sand discharging pipe below along a conical hopper at the lower part of the sand collecting area and is discharged out of the water suction pipe. The device is simple to manufacture and transform, reliable in function, wide in application range and remarkable in sand-water separation effect, the service life of the water pump can be remarkably prolonged, the equipment maintenance cost is reduced, the long-period stability and reliability of water supply and drainage are improved, and the device has high popularization value.

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