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Sand-preventing submersible electric pump

A technology for submersible electric pumps and sand control, which is applied to pumps, pump devices, pump components, etc., and can solve problems such as seal failure of submersible electric pumps

Inactive Publication Date: 2013-12-18
TAIZHOU TAIFENG PUMP IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problem of the existing submersible pump seal failure caused by the rapid wear of sediment

Method used

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  • Sand-preventing submersible electric pump
  • Sand-preventing submersible electric pump
  • Sand-preventing submersible electric pump

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] according to figure 1 , figure 2 , image 3 As shown, a sand control submersible pump includes a motor, a motor bearing seat and a water pump, and a sand control sealing device is provided between the motor and the water pump, and a double helical sand throwing ring 3 is provided on the sand control sealing device, and the double spiral The 3 rings of spiral sand rejection are set on the motor rotor shaft 7, and the sand discharge ring 5 is fixed on the motor bearing seat, and a gap is provided between the sand discharge ring 5 endoporus and the spiral sand rejection ring 3 outer circles.

[0013] The motor rotor shaft 7 of the present invention and the double-helix sand throwing ring 3 are sleeved with a metal gasket 2, and the double-helix sand throwing ring 3 is fixed by the metal gasket 2 at one end and the connecting flange 1 at the other end, and then fixed by the metal gasket The mechanical seal or skeleton oil seal 4 in the sheet is fixed and sealed. The out...

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PUM

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Abstract

The invention relates to a sand-preventing submersible electric pump which comprises a motor, a motor bearing seat and a water pump. The sand-preventing submersible electric pump is characterized in that a sand-preventing sealing device is arranged between the motor and the water pump, a double-screw sand throwing ring (3) is arranged on the sand-preventing sealing device and sleeved on a motor rotor shaft (7), a sand draining ring (5) is fixed on the motor bearing seat, a gap is formed between an inner hole of the sand draining ring (5) and an outer circle of the double-screw sand throwing ring (3), a metal gasket (2) is sleeved between the motor rotor shaft (7) and the double-screw sand throwing ring (3), the double-screw sand throwing ring (3) is fixed by the metal gasket (2) at one end and a connecting flange (1) at the other end and then fixed and sealed by a mechanical seal or a framework seal (4) in the metal gasket, and a wear-resistant pad (6) is fixed on the motor bearing seat and positioned between the motor bearing seat and a sand throwing blade on the double-screw sand throwing ring (3).

Description

technical field [0001] The invention relates to a submersible electric pump, in particular to a submersible electric pump capable of preventing sand. Background technique [0002] In the past, when the submersible electric pump was used in the occasions where the medium contained a large amount of mud and sand, the mud and sand could easily enter between the rotor shaft and the dynamic seal, so that the rotor shaft and the seal were damaged early due to the rapid wear of mud and sand, resulting in the short-term failure of the submersible motor due to the seal. The water enters, thereby burning the motor. The service life of the machine is shortened, the work progress is affected, and the cost is also increased. Contents of the invention [0003] In order to overcome the above defects, the object of the present invention is to provide a submersible electric pump with a sand-proof sealing device, long service life and high production efficiency, including a motor, a mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/08F04D29/10
Inventor 吴进毛骥赵秀华
Owner TAIZHOU TAIFENG PUMP IND
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