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Submersible pump capable of improving mechanical seal operation environment

A mechanical seal and operating environment technology, applied in mechanical equipment, pumps for special fluids, parts of pumping devices for elastic fluids, etc., can solve problems such as reducing the heat dissipation performance of mechanical seals, affecting sealing effects, and motor damage. To achieve the effect of ensuring long-term safe use, preventing wear and tear, and improving the operating environment

Active Publication Date: 2022-07-29
NANJING POLYTECHNIC INSITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Submersible sewage pumps are widely used in the transportation of domestic sewage and industrial wastewater. Safe operation has a greater impact
[0003] During the operation of the submersible pump, sand and fine fibers will enter the cavity where the mechanical seal is located, and the fibers will be wound on the mechanical seal, and the sand and fibers will affect its sealing effect. So that the liquid enters the motor cavity, causing damage to the motor
At the same time, the heat dissipation performance of the mechanical seal is reduced, which affects the reliable use of the mechanical seal

Method used

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  • Submersible pump capable of improving mechanical seal operation environment
  • Submersible pump capable of improving mechanical seal operation environment
  • Submersible pump capable of improving mechanical seal operation environment

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Embodiment Construction

[0021] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] The following description is merely exemplary in nature and is not intended to limit the disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0023] It should be noted that, for the convenience of description, the following term "lower end" is Figure 1 to Figure 2 The installation orientation of the middle impeller relative to the motor; the "upper end" is Figure 1 to Figure 2 The installation orientation of the middle motor relative to the impeller.

[0024] Embodiments of the present invention provide a submersible pump for improving the operating environment of a mechanical seal, such as figure 1 As shown, it includes a submersible electric pump 1 , a volute 4 , a bottom cover 5 , an impeller 3 , a mechanical...

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Abstract

The invention provides a submersible pump capable of improving the operating environment of a mechanical seal, which comprises a submersible electric pump, a volute and a bottom cover which are sequentially connected from top to bottom, and further comprises an impeller, a mechanical seal seat and a mechanical seal, and the mechanical seal seat penetrates through a rotor shaft of the submersible electric pump and is arranged at the end part of the submersible electric pump; the impeller is arranged at the end of a rotor shaft of the submersible electric pump and located in the volute. A first cavity is formed between the impeller and the mechanical sealing seat, and the mechanical seal is arranged on the mechanical sealing seat and located in the first cavity. The end of the impeller is in clearance fit with the end of the mechanical sealing seat to form a first cutting pair, a sealing pair and a second cutting pair which are sequentially connected. According to the submersible pump capable of improving the operating environment of the mechanical seal, fibers and sand can be effectively prevented from entering a cavity where the mechanical seal is located, so that the fibers are prevented from being wound on the mechanical seal, and long-term safe use of the mechanical seal is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of water pumps, and in particular relates to a submersible pump for improving the operating environment of a mechanical seal. Background technique [0002] Submersible sewage pumps are widely used in the transportation of domestic sewage and industrial wastewater, but the components of domestic sewage and industrial wastewater are complex and contain a large amount of sand and fibers, which will have a greater impact on the safe operation of submersible pumps. [0003] During the operation of the submersible pump, sand and fine fibers will enter the cavity where the mechanical seal is located, and the fibers will be wound on the mechanical seal. The sand and fibers will affect its sealing effect, so that the liquid will enter the motor cavity and cause damage to the motor. At the same time, the heat dissipation performance of the mechanical seal is reduced, which affects the reliable use of the mechanical se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D7/04F04D13/06F04D29/10F04D29/22
CPCF04D7/045F04D29/2288F04D29/106F04D13/06
Inventor 朱超云宋伟顾娟高如敏
Owner NANJING POLYTECHNIC INSITUTE
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