Deep-well pump with filtering device

Abstract

The invention discloses a deep-well pump with a filtering device. The pump solves the problem of a poor protection effect on particles falling into water from the outside in the actual application process of an existing deep-well pump, according to the adopted technical scheme, the deep-well pump with the filtering device comprises a controller, a motor and a water lifting device, the motor is in transmission connection with the water lifting device, and the motor is arranged in a machine barrel; a supporting device for supporting a motor rotor is arranged on the lower end side of the machine barrel; and the water lifting device is arranged in an upper barrel, the upper barrel and the machine barrel are coaxially connected and fixed through a connecting frame, and a water inlet facing the connecting frame is formed in the upper barrel. The filtering device comprises an annular sand-proof barrel, the sand-proof barrel sleeves the periphery of the deep-well pump in a clearance manner, a sealing structure is arranged between the upper end of the sand-proof barrel and the upper barrel, the water inlet is located in the axial length range of the sand-proof barrel, the lower end of the sand-proof barrel at least extends downwards to the position of the machine barrel, and the inner diameter of the sand-proof barrel is larger than the outer diameter of the machine barrel. A gap between the sand-proof barrel and the machine barrel is communicated with the water inlet.

Description

technical field [0001] The invention relates to a deep well pump, in particular to a deep well pump with a filter device, which can block the particles sinking from the water surface in the water source. Background technique [0002] Deep well pumps are used in relatively deep water sources, especially deep wells, to lift water to high places. The deep well pump is normally suspended by the sling under the working state, and half suspended below the water surface, the deep well pump will not contact with the bottom of the water body. Therefore, the use of the deep well pump generally does not need to consider the sand control requirements at the bottom of the water body. But in the water source, due to the changeable external environment, particles such as sand and stones often fall into the water source. When the deep well pump is working, a strong liquid flow in the approximate horizontal direction will be formed at the water inlet of the deep well pump. When the particle...

AI Technical Summary

Problems solved by technology

During the use of this kind of electric pump, if foreign particles fall to the water source and sink, if the traveling path is close to the water inlet of the water inlet section, it is very easy to be brought into the water inlet section by the water flow and produce a , therefore, the effect of this kind of electric pump against external sand particles is not ideal

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