Deep mine submersible pump capable of balancing shaft head force of static rotor

A rotor shaft and submersible pump technology, which is applied to parts, pumps, pump devices, etc. of pumping devices for elastic fluids, can solve problems such as the inability to achieve static rotor axial force balance of submersible pumps used in deep mines, and ensure The effect of normal startup and reliable operation

Active Publication Date: 2014-11-19
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that the existing dynamic axial force balance method of the pump rotor cannot realize the static rotor axial force balance of the deep mine submersible pump, the present invention proposes a deep mine submersible pump that can balance the static rotor shaft head force

Method used

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  • Deep mine submersible pump capable of balancing shaft head force of static rotor
  • Deep mine submersible pump capable of balancing shaft head force of static rotor

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0018] Such as figure 1 As shown, the deep mine submersible pump of the present invention includes a motor top cover 13, a motor, and a motor base 5 connected sequentially from top to bottom, and a thrust plate 11 is fixed on the shaft 8 top of the motor, and the thrust plate 11 is passed through a screw fixed on the top of shaft 8. The upper end of the thrust plate 11 is provided with a thrust plate groove 16, and the thrust plate 11 is also provided with a radial thrust plate through hole 15 communicating with the thrust plate groove 16, and the motor top cover 13 is provided with Radial through-holes 14 on the top cover of the motor, and axial through-holes are provided on the motor base 5 . Preferably, there are multiple through holes 15 on the thrust plate, through...

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Abstract

The invention provides a deep mine submersible pump capable of balancing shaft head force of a static rotor. The deep mine submersible pump comprises a motor top cover, a motor and a motor base which are connected sequentially from top to bottom. The deep mine submersible pump is characterized in that a thrust disc is fixed at the top of a shaft of the motor, a thrust disc cavity is arranged in the upper end of the thrust disc, the thrust disc is further provided with thrust disc through holes arranged in the radial direction and communicated with the thrust disc cavity, the motor top cover is provided with a radial motor top cover through hole, the motor is a wet motor, and the motor base is provided with an axial through hole. The deep mine submersible pump has the advantages that high pressure water is guided from the bottom end of the pump to the top of a rotor; reverse shaft head force is produced to balance shaft head force, and axial force of the rotor of the pump is nearly zero before startup; liquid guided in is filtered so as to ensure normal startup and reliable operation of the pump.

Description

technical field [0001] The invention relates to a mine submersible pump, in particular to a deep mine submersible pump capable of balancing the force of a static rotor shaft head. Background technique [0002] Mining submersible pump is an important equipment for coal mine water drainage and rescue. It is understood that the submersible pumps used in deep mines that have passed various tests often fail to start the rotor after they are lowered into deepwater mines. Through theoretical analysis, it is found that before the deep mine submersible pump is started, the rotor bottom of the deep well submersible pump is subjected to the axial shaft head force of the liquid, which is the reason why the rotor cannot start normally. The shaft head force is proportional to the submerged depth of the pump shaft head. In deep wells, the shaft head force is very large, and the resistance torque formed by the shaft head force far exceeds the starting load of the motor. [0003] According...

Claims

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Application Information

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IPC IPC(8): F04D13/08F04D29/041F04D29/70
Inventor 孔繁余汪家琼夏斌
Owner JIANGSU UNIV
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