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Pump structure capable of enabling liquid molecules in pump not to be leaked during operation through air jacking sealing and including immersion pump and application method of pump structure

A deep submersible pump, jacking technology, applied in the components of pumping devices for elastic fluids, liquid fuel engines, pumps, etc.

Inactive Publication Date: 2017-02-22
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] It is to start with subverting the existing waterproof sealing link of the submersible pump in terms of structure (using the principle of air jacking and sealing), and at the same time solve the problem of structural treatment of water (liquid) molecules in the pump body that will not leak to the outside

Method used

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  • Pump structure capable of enabling liquid molecules in pump not to be leaked during operation through air jacking sealing and including immersion pump and application method of pump structure
  • Pump structure capable of enabling liquid molecules in pump not to be leaked during operation through air jacking sealing and including immersion pump and application method of pump structure

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Embodiment Construction

[0036] Taking the submersible pump as an example, the core overview of the present invention: in order to prevent the motor rotor 2 from contacting with the external water body that seeps into the submersible pump and eventually damage the motor, at least a three-dimensional surrounding metal seal isolation is formed for the motor rotor 2 Shield the cavity, 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 In contact with the motor rotor 2, it can only enter through the shaft seal position 7 along the rotating shaft 6. However, as long as the air pressure in the isolation shielding cavity is large enough, it can be fully supported from top to bottom, that is, prevented. live:

[0037] The external water body enters the isolation and shielding cavity from bottom to top th...

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Abstract

The invention discloses a pump structure capable of enabling liquid molecules in a pump not to be leaked during operation through air jacking sealing and including an immersion pump and an application method of the pump structure. According to the structure, firstly, at least a rotor (2) is surrounded by a narrow metallic seal isolator (4) or a wide metallic seal isolator (5) in a stereoscopic manner, and a motor shaft seal (7), a charging connector mechanism (P) and a pressure display device connector (K) are arranged at the bottom of the narrow metallic seal isolator (4) or the wide metallic seal isolator (5); secondly, the periphery and the bottom for forming a liquid pump (9) are surrounded by a nondetachable metallic seal structure (10) in a stereoscopic manner; and all joint gaps of a full-sealed metallic seal isolation cavity of the pump structure are achieved through a welding process. Due to the fact that the underwater one-time working and idling duration cumulative time of the pump structure depends on the service life (about 30 years) of a motor and the infinite diving depth, and the extremely high cost performance is achieved, conditions are created for the pump structure to become an upgrade product of an immersible pump, and the structure is probably more suitable for a common water pump.

Description

technical field [0001] The invention relates to a pump structure and its application method including a deep submersible pump (both submersible depth and one-time continuous submersion time can reach unlimited) without leaking the liquid molecules in the pump when it is operated with an air support seal. 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 damag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/08F04D29/12H02K5/10H02K5/124
CPCH02K5/10H02K5/124F04D13/08F04D13/06H02K11/01
Inventor 梁嘉麟
Owner CHINA JILIANG UNIV
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