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Submersible water pumping device

An immersion and equipment technology, applied in the field of immersion pumping equipment, to achieve the effect of reducing wear, reducing resistance, and entering the water flow regularly

Inactive Publication Date: 2014-11-19
SUZHOU HAIERSHI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the face of the demand for large head, reducing the pressure at the outlet has become a difficult problem

Method used

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  • Submersible water pumping device

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 As shown, the submerged pumping equipment of the present invention includes a housing 2 with a screw cavity 1, a group of screws 3 arranged in the screw cavity 1, the lower end of the screw 3 is connected with a water inlet 4, and the upper end is connected with a water outlet 5, The inner wall of the water inlet 4 has a spiral structure, the front and rear ends of the screw shaft 6 are supported by bearings 7, the screw shaft 6 is connected to the first motor 9 through a transmission mechanism 8, and the water inlet section of the water outlet 5 has a drum-shaped chamber 11, which is connected with the drum-shaped The water outlet channel 5 connected to the chamber 11 also has a spiral structure, and an impeller 12 is installed in the drum-shaped chamber 11, and the impeller 12 has 7 blades. The water inlet of the drum...

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Abstract

The invention discloses a submersible water pumping device which comprises a shell and a screw, wherein a screw shaft is coupled with a first motor through a transmission mechanism; a drum-shaped cavity is arranged at a water intake section of a water outlet channel; a blade driven by a second motor is arranged in the drum-shaped cavity; an air blowing pipe is inserted into the water outlet channel connected with the drum-shaped cavity; the upper end of the air blowing pipe is connected with an air pump; a pressure adjusting cavity is arranged on a shell arranged at the rear end of the screw shaft; an annular groove is formed in the upper part of the screw cavity along the circumferential wall; the annular groove and the pressure adjusting cavity are communicated with each other through a pipeline; on one hand, a blade type water pump and the air blow pipe are arranged at a water outlet of the screw pump; by virtue of the work of the blade type water pump and the air pump, the pressure at the water outlet of the screw pump is reduced; on the other hand, the water pressure of the front end of the screw pump is led into the rear end of the screw shaft, so as to push the screw shaft upwards to resist strong recoil force borne by the screw; by combining the two aspects, anti-resistance borne by the screw shaft is reduced, so that the load of a bearing is reduced; the wear of the bearing is alleviated and the service life of a submersible pump is prolonged.

Description

technical field [0001] The invention relates to a water pumping device, in particular to a submerged water pumping device. Background technique [0002] Submersible pumps are important equipment for deep well water extraction and are widely used in industry and agriculture. [0003] Generally speaking, according to the principle of drainage, water pumps can be divided into: 1. Impeller pumps, such as: centrifugal pumps, mixed flow pumps, axial flow pumps, etc., swirl pumps; 2. Positive displacement pumps, such as: plunger pumps, gear pumps, Screw pump, vane pump, etc.; 3. Other types, such as: jet pump, water hammer pump, etc. [0004] The screw pump belongs to positive displacement pump, with high head and low flow rate, especially suitable for loose viscous liquid. When the screw rotates at a high speed, the back-end bearing is subjected to greater pressure, which accelerates wear and also limits the speed of the screw pump. The pressure on the bearing mainly comes from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C15/00
Inventor 陆俊芳马巧根周长根候潇寒张薇华
Owner SUZHOU HAIERSHI INFORMATION TECH CO LTD
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