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Anti-sand 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

Active Publication Date: 2012-09-19
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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  • Anti-sand submersible electric pump
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  • Anti-sand submersible electric pump

Examples

Experimental program
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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 spiral sand throwing ring 3 is sleeved on the motor rotor shaft 7, and the motor bearing seat is fixed with a sand discharge ring 5, and there is a gap between the inner hole of the sand discharge ring 5 and the outer circle of the spiral sand throwing ring 3.

[0013] The motor rotor shaft 7 of the present invention and the double-helix sand throwing ring 3 are covered 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 internal mechanical seal or skeleton oil seal 4 is fixed and sealed. The...

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Abstract

The invention relates to an anti-sand submersible electric pump. The anti-sand submersible electric pump comprises a motor, a motor bearing seat and a water pump, and is characterized in that an anti-sand sealing device is arranged between the motor and the water pump, a double-helix sand throwing ring (3) is arranged on the anti-sand sealing device, the double-helix sand throwing ring (3) is annularly sheathed on a motor rotor shaft (7), a sand discharge circle (5) is fixedly arranged on the motor bearing seat, and a gap is arranged between an inner hole of the sand discharge circle (5) and an outer circle of the double-helix sand throwing ring (3). A metal gasket (2) is sheathed between the motor rotor shaft (7) and the double-helix sand throwing ring (3), one end of the double-helix sand throwing ring (3) is fixed by the metal gasket (2), the other end of the double-helix sand throwing ring (3) is fixed by a connecting flange (1), and the double-helix sand throwing ring (3) is further fixed and sealed through a mechanical seal or a framework oil seal (4) in the metal gasket. A wear-resistant pad (6) is fixedly arranged on the motor bearing seat, and the wear-resistant pad (6) is positioned between the motor bearing seat and sand throwing blades of the double-helix 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 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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