Submersible pump provided with air jacking waterproof sealing structure and detachable and replaceable motor rotor

Abstract

The invention provides a submersible pump provided with an air jacking waterproof sealing structure and a detachable and replaceable motor rotor. The submersible pump comprises a traction motor which has a conventional structure form and is composed of a rotor (2) and a stator (1) which is embedded into a winding, and a hydraulic pump (9) driven by a rotary shaft (6) of the traction motor; the submersible pump is characterized in that the rotor (2) is at least enclosed by a wide metal isolation device (4) in a stereoscopic manner; a motor shaft seal (7) and an inflation nozzle device (P) are arranged at the inverted-cone-shaped bottom of the wide metal isolation device (4); all splicing gaps of the wide metal isolation device (4) are realized through a non-detachable welding process. According to the submersible pump, accumulated time of working and idling for one time underwater is much longer than that of the prior art; a product in the prior art needs to be maintained ashore at a fixed period (which commonly comprises a few months and does not exceed one year at most), but the product provided by the invention does not need to be maintained ashore at a fixed period, so that conditions are created for renewal products of the submersible pump. The structure of the submersible pump is also applicable to a common submersible pump.

Description

technical field [0001] The present invention relates to a submersible pump which utilizes an air jacking waterproof sealing structure and whose motor stator can be disassembled and replaced. Background technique [0002] At present, a variety of submersible pumps with different specifications and models emerge in an endless stream, and they are a kind of power equipment with a wide range of uses and mature. Specifications of the sealing ring to act as) to resist the infiltration of external water to the inside of the submersible pump driving motor. [0003] For this reason, when people use submersible pumps, the general maintenance interval will not be too long (as few as a month or as many as more than a year - the greater the diving depth, the shorter the maintenance interval of the submersible pump), as long as After use, it must be regularly brought to the surface for maintenance (not damage repair), so that the seepage water that has entered the submersible pump motor ...

AI Technical Summary

Problems solved by technology

[0002] At present, submersible pumps of various specifications and models emerge in an endless stream, which is a kind of power equipment with a wide range of uses. Standard sealing ring to act as) to resist the infiltration of external water into the submersible pump drive motor

——That is: it is difficult to keep the submersible pump in the underwater environment "for a lifetime"

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