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Self-priming pump with return valve

A technology of return valve and self-priming pump, which is applied in the direction of pump, pump control, driving pump, etc., can solve the problem of long start-up time and achieve the effect of improving start-up efficiency

Pending Publication Date: 2022-03-01
HEFEI XINHU CANNED MOTOR PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the self-priming pump needs to discharge the air in the pump during the start-up stage before it can enter normal operation, which leads to a longer start-up time of the pump. Therefore, it is necessary to provide a self-priming pump with a return valve

Method used

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  • Self-priming pump with return valve
  • Self-priming pump with return valve
  • Self-priming pump with return valve

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0041] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention belongs to the technical field of self-priming pumps, and provides a self-priming pump with a return valve, the self-priming pump comprises a pump body, a guide vane and the return valve, the guide vane is arranged in the pump body, the inside of the guide vane is communicated with a water inlet channel of the pump body to form a first cavity, a second cavity is formed between the outside of the guide vane and the pump body, and the second cavity is communicated with a water outlet of the pump body; the return valve is arranged at the bottom of the guide vane and located in the second cavity. When the self-priming pump is started, the return valve is opened, and liquid in the second cavity flows back to the first cavity through the return valve; when the self-priming pump works normally, the return valve is closed. According to the self-priming pump with the return valve, the starting time of the self-priming pump can be shortened, the self-priming pump can be quickly started, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of self-priming pumps, in particular to a self-priming pump with a return valve. Background technique [0002] Self-priming pump means that before the pump is started, the pump casing is filled with water (or there is water in the pump casing itself), and the pump is started when the water inlet pipe does not need to be filled with water. The self-priming pump starts the motor, the power Linked, the rotating assembly is driven by the impeller centrifuge, and the air bubbles surge upwards to generate suction. The air in the water inlet pipe is discharged from the pump body through the water outlet pipe, and the air is completely discharged, and the water flows out through the water outlet pipe. After the self-priming pump is started, it will enter normal operation after a short period of operation. The pump must be filled with enough water before the initial start, and the subsequent start-up work will start ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D9/02F04D15/00
CPCF04D9/02F04D15/0005
Inventor 韩元平丁军峰
Owner HEFEI XINHU CANNED MOTOR PUMP
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