Guide-well desertification energy conservation submerged pump

Abstract

The invention provides a guide-well desertification energy conservation submerged pump, wherein the lower part of a submerged pump (2) is connected with a fixed pressure reducer (7); the lower part of the shrouded pressure reducer (7) is connected with a motor (6) through a flange (3); a water inlet guide plate (5) which inclines inwards and downwards is fixed along the edge of the connection part of the pressure reducer (7) and the submerged pump (2) at the upper part in a protruding manner; filtering holes (8) are arranged on the wall of the upper part of the pressure reducer (7). The water flow at the bottom of the well is in a stable state, a few sand grains on the wall of the bottom of the well sink naturally; the sand content of the water body in the well is not greater than 0.005%, thus protecting the well wall, lowering power consumption, and realizing the effect of filtering the soil at the bottom of the well simultaneously; the invention can prolong the warning service life to 15-20 years, has simple and easily maintained structure, dramatically improved working mode efficiency, smooth water pumping, energy saving and dramatic economic effect; and the invention also has novel structure, compact matching, strong sealability, durability, convenient use and is a novel desertification pressure reducing sealing element of the submerged pump.

Description

technical field [0001] The invention belongs to a submersible pump which can effectively reduce the scouring of mud and sand in a well and protect the well wall, in particular to a well protection, anti-sand, energy-saving and energy-saving submersible pump. Background technique [0002] In the known technology, the submersible pump is composed of multi-stage centrifugal impellers connected in series, the pump stages are connected by gold or bolts, each section is supported by rubber or copper bearings, and the top of the pump is provided with a check valve. The motor is a closed water-filled three-phase asynchronous motor. The winding adopts a water-resistant continuous sealing structure. The guide bearing and the thrust bearing are water-lubricated bearings. However, due to the concentrated suction of the submerged water inlet deflector and the large negative pressure, a strong and rapidly rising rotating water flow will inevitably be formed at the bottom of the well, scou...

AI Technical Summary

Problems solved by technology

[0004] The above technical solutions have failed to fundamentally solve the situation that the high negative pressure water flow formed by the pump inlet flushes the well wall and the entrained sediment is pumped up. At present, maintaining or improving the efficiency of the submersible pump can also solve the technical problems related to the protection of the well bottom structure. The plan has not yet been published

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