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Self-priming structure on multi-stage centrifugal pump

A centrifugal pump and self-priming technology, which is applied to components, pumps, and drive pumps of elastic fluid pumping devices, and can solve the problems of single overall function, no self-priming function, and low degree of automatic control

Inactive Publication Date: 2020-05-12
ZHEJIANG RIJING PUMP IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing centrifugal pump does not have self-priming function, the overall function is relatively single, and the degree of automatic control is low

Method used

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  • Self-priming structure on multi-stage centrifugal pump
  • Self-priming structure on multi-stage centrifugal pump
  • Self-priming structure on multi-stage centrifugal pump

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0013] see Figure 1 to Figure 3 , the present invention provides a multistage centrifugal pump with a self-priming structure, comprising a motor 1 and a pump body 2, the pump body 2 is located at the front end of the motor 1, and a circuit control device 3 is arranged on the top of the motor 1, the pump body 2 includes the pump casing 4, the multistage impeller 6 connected to the rotating shaft 5 of the motor 1 arranged in the pump casing 4, the water inlet cover 7 arranged at the inlet position of the multistage impeller 6 and the outlet position of the multistage impeller 6 The water outlet cover 8, the water inlet channel 9 is formed in the water inlet cover 7, the multi-stage impeller 6 is located in the impeller chamber, the water outlet channel 10 is formed in the water outlet cover 8, and the pump body 2 is provided with a water inl...

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Abstract

The invention discloses a self-priming structure on a multi-stage centrifugal pump. The self-priming structure comprises a motor and a pump body. A water inlet channel, an impeller chamber and a wateroutlet channel are arranged in the pump body, a water inlet penetrating the water inlet channel and a water outlet penetrating the water outlet channel are formed in the pump body, and a backflow channel is arranged between the water inlet channel and the water outlet channel, so that the water inlet channel and the water outlet channel penetrate; a self-priming valve is arranged in the backflowchannel and comprises a valve element and a spring, the valve element comprises a sealing cap and a guide bar arranged at the top end of the sealing cap, the sealing cap can play a role of sealing thebackflow channel, and the spring has a downward elastic force to the sealing cap all the way, so that the backflow channel is in an opened state. The self-priming structure on the multi-stage centrifugal pump achieves a self-priming function, and the integral performance of the centrifugal pump is improved.

Description

technical field [0001] The invention relates to a self-priming structure on a multistage centrifugal pump. Background technique [0002] Existing centrifugal pumps do not have a self-priming function, the overall function is relatively single, and the degree of automatic control is low. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a self-priming structure on a multi-stage centrifugal pump, which realizes the self-priming function and improves the overall performance of the centrifugal pump. [0004] In order to solve the above-mentioned technical problems, the technical solution of the self-priming structure on a kind of multi-stage centrifugal pump of the present invention is: [0005] The invention discloses a self-priming structure on a multi-stage centrifugal pump, which includes a motor and a pump body. The pump body is provided with a water inlet channel, an impeller chamber and a water outlet channel, ...

Claims

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Application Information

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IPC IPC(8): F04D9/02F04D15/00F04D29/00F04D1/08F04D13/06
CPCF04D1/08F04D9/02F04D13/06F04D15/0005F04D29/007
Inventor 莫利波蔡海军赵孔胜吴海军
Owner ZHEJIANG RIJING PUMP IND CO LTD
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