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Submersible pump with watertight sealing structure designed with air jacking principle

A waterproof sealing, submersible pump technology, applied in the direction of pumps, pump devices, electrical components, etc.

Inactive Publication Date: 2017-01-04
周巽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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"

Method used

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  • Submersible pump with watertight sealing structure designed with air jacking principle

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Embodiment Construction

[0026] Overview of the core of the present invention: In order to prevent the motor rotor 2 from contacting with the external water body that penetrates into the submersible pump and eventually damage the motor, at least a metal-sealed isolation shielding cavity with a three-dimensional surrounding property is formed for the motor rotor, and only The rotating shaft 6 of the motor rotor 2 outputs rotational force to the liquid pump 9 through the shaft seal position 7. Obviously, if the external water body wants to enter the cavity (inner cavity) formed by the metal sealing isolation shield and contact with the motor rotor 2, then It can only enter through the shaft seal position 7 upwards along the rotating shaft 6. However, as long as the air pressure in the isolation and shielding cavity is large enough, it can fully support (prevent) the external water body from passing through the above-mentioned gap from top to bottom. The shaft seal position 7 enters the isolation shieldin...

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Abstract

A submersible pump with a watertight sealing structure designed with an air jacking principle comprises a motor formed by a rotor (2) and a stator (1) as well as a liquid pump (9) driven by a rotating shaft (6) of the motor. The submersible pump is characterized in that at least the rotor (2) is surrounded by a narrow metal sealing separator (4) in a 3D way, or at least the rotor (2) and the stator (1) are surrounded by a wide metal sealing separator (5) in a 3D way, and a motor shaft seal (7) and a charging connector mechanism (P) are arranged on the inverted-cone-shaped bottom of the narrow metal sealing separator (4) or the wide metal sealing separator (5); and all splicing seams relating to the narrow metal sealing separator (4) or the wide metal sealing separator (5) are connected by undetachable welding techniques. The accumulated time of the submersible pump for one-time working and the idle time is much longer than that of pumps in the prior art (dependent on the service life of the motor), and thus the submersible pump can become a new generation product for replacing the pumps in the prior art. The structure of the submersible pump is also applicable for common pumps.

Description

technical field [0001] The invention relates to a submersible pump with a waterproof sealing structure designed using the principle of air jacking. Background technique [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. [0003] For this reason, when people use submersible pumps, the general maintenance interval will not be too long (as little as a month and as many as a year is difficult to exceed 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 lifted out of the water for maintenance (not damage repair), so that the seepage water that has entered the submersible pump motor has a chance to be artificially removed in time, so as to prevent the motor r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/10H02K5/132H02K5/124F04D13/08
CPCH02K5/10F04D13/083H02K5/124H02K5/132
Inventor 周巽
Owner 周巽
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