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Idling protection device of plastic pump

A technology of idling protection and plastic pump, applied in the direction of pump device, components of pumping device for elastic fluid, pump, etc., can solve the problems of insufficient pump filling, insufficient pump inlet energy head, large pump inlet pipe resistance, etc. , to reduce the number of additions, reduce waste, and prevent air leakage

Inactive Publication Date: 2019-05-21
ZONGYANG COUNTY ZHONGBANG TECH INFORMATION CONSULTING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Problems caused by pump cavitation: The main reasons for pump cavitation are large pump inlet pipe resistance, more gas phase of the conveying medium, insufficient filling of the pump, and insufficient energy head at the pump inlet, etc.
Cavitation is the most harmful to the pump. When cavitation occurs, the pump vibrates violently and the balance is seriously damaged, which will cause damage to the plastic pump bearing and pump shaft.
[0003] Among them, the bearing damage caused by the idling of the main shaft of the plastic pump due to insufficient filling of the pump is relatively common. For those skilled in the art, it is necessary to design a idling protection device for plastic pumps

Method used

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  • Idling protection device of plastic pump
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  • Idling protection device of plastic pump

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Embodiment Construction

[0022] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0023] Such as Figure 1 to Figure 3 As shown, a plastic pump idling protection device, the plastic pump includes pump body 1, impeller 2, pump cover 3, bracket 4, isolation sleeve 5, inner magnetic rotor 6, main shaft 7, outer magnetic rotor 8 and motor 9, isolated The sleeve 5 is fixed on the bracket 4, the pump cover 3 is fixed on the isolation sleeve 5, and forms a cavity with the isolation sleeve 5, and the isolation sleeve 5 is provided with an exchange hole for guiding water into the cavity; the main shaft 7 is arranged on the isolation sleeve 5. On the sleeve 5 and the pump cover 3, the impeller 2 is fixed on one end of the main shaft 7, the inner magnetic rotor 6 is fixed on the other end of the main shaft 7, roll...

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Abstract

The invention provides an idling protection device of a plastic pump, and belongs to the technical field of water pumps. The idling protection device of the plastic pump solves the technical problem that due to the fact that an existing plastic pump idles, bearings are damaged. According to the idling protection device of the plastic pump, the plastic pump comprises a pump body, an impeller, a pump cover, a support, an isolation sleeve, an inner magnet rotor, a main shaft, an outer magnet rotor and a motor. The isolation sleeve is fixedly arranged on the support, the pump cover is fixedly arranged on the isolation sleeve, a cavity is formed by the pump cover and the isolation sleeve, and an exchange hole which is used for guiding water to enter the cavity is formed in the isolation sleeve.The main shaft is arranged on the isolation sleeve and the pump cover, the impeller is fixedly arranged at one end of the main shaft, the inner magnet rotor is fixedly arranged at the other end of the main shaft, and rolling bearings are arranged at the two ends of the main shaft. The motor and the support are fixed, and the outer magnet rotor which drives the inner magnet rotor to rotate is fixedly arranged on an output shaft of the motor. The pump body is fixedly arranged on the support, a water flow cavity is formed by the pump body and the pump cover, and the impeller is located in the water flow cavity. The idling protection device of the plastic pump has the advantage that the phenomenon that the plastic pump idles, the bearings are damaged is avoided.

Description

technical field [0001] The invention belongs to the technical field of water pumps, in particular to an idling protection device for plastic pumps. Background technique [0002] Problems caused by pump cavitation: The main reasons for pump cavitation are large pump inlet pipe resistance, more gas phase of the conveying medium, insufficient filling of the pump, and insufficient energy head at the pump inlet. Cavitation is the most harmful to the pump. When cavitation occurs, the pump vibrates violently and the balance is seriously damaged, which will cause damage to the plastic pump bearing and pump shaft. [0003] Among them, the bearing damage caused by the idling of the main shaft of the plastic pump due to insufficient filling of the pump is relatively common. For those skilled in the art, it is necessary to design an idling protection device for the plastic pump. Contents of the invention [0004] The object of the present invention is to solve the above-mentioned pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D29/06F04D29/08F04D29/049
Inventor 汪慧敏
Owner ZONGYANG COUNTY ZHONGBANG TECH INFORMATION CONSULTING CO LTD
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