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Sand-proof submersible electric pump

A submersible electric pump and sand control technology, applied in the direction of pumps, pump devices, pump components, etc., can solve the problems of submersible electric pump seal failure and other problems

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-proof submersible electric pump
  • Sand-proof submersible electric pump
  • Sand-proof 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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Abstract

The invention relates to a sand-proof submersible electric pump comprising a motor, a motor bearing seat and a water pump. The sand-proof submersible electric pump is characterized in that a sand-proof sealing device is arranged between the motor and the water pump and provided with a double-helix sand slinger (3) sleeved on a motor rotor spindle (7), a sand draining ring (5) is fixed on the motor bearing seat, and a gap is formed between the inner hole of the sand draining ring (5) and the outer circle of the double-helix sand slinger (3). Besides, a metal gasket (2) is sleeved between the motor rotor spindle (7) and the double-helix sand slinger (3), and the double-helix sand slinger (3) is fixed by the metal gasket (2) arranged at one end and a connecting flange (1) at the other end, and then is sealed by a mechanical seal or frame seal (4) in the metal gasket. Further, a wear pad (6) is fixed on a motor bearing seat and disposed between the motor bearing seat and a sand slinging blade on the double-helix sand slinger (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 occasion with a large amount of mud and sand in the medium, because the mud and sand easily entered between the rotor shaft and the dynamic seal, the rotor shaft and the seal were damaged early due to the rapid wear of the mud and sand, resulting in short-term failure of the submersible motor due to the seal. And water, thus 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 motor bearing seat and a ...

Claims

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Application Information

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IPC IPC(8): F04D13/08F04D29/10
Inventor 吴进毛骥赵秀华
Owner TAIZHOU TAIFENG PUMP IND
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