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Anti-cavitation vortex pump

A vortex pump and cavitation technology, which is applied to pumps, parts of pumping devices for elastic fluids, pump components, etc., can solve problems such as vortex pump cavitation, achieve liquid pressure increase, pressure difference expansion, and practicality strong effect

Inactive Publication Date: 2016-04-20
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a vortex pump that prevents cavitation in view of the current situation that vortex pumps are prone to cavitation

Method used

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the technical solution in the present invention, the technical solution in the invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention, and what is obviously described is only a part of the present invention Examples, not all examples. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the invention.

[0017] Such as figure 1 As shown, a vortex pump for preventing cavitation according to the present invention includes an inlet 1, an outlet 2, a pump body 3, a valve 4, a return branch 5, an impeller 6, a tongue 7, a pressure inlet 8, and a pressure outlet 9.

[0018] One end of the return branch is connected to the pressure inlet, and the other end is connected to the pressure outlet; the diameter of the re...

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Abstract

The invention discloses an anti-cavitation vortex pump. The anti-cavitation vortex pump comprises a pump body, a valve, a reflux branch line, a press-in port and a press-out port, wherein the reflux branch line is connected between the press-in port and press-out port of the pump body; the valve is opened or closed to control the reflux branch line; and the reflux branch line is used for refluxing part of the liquid of the press-out port into the press-in port, so that the pressure of the working medium liquid at the press-in port is enhanced. Since the cavitation property is improved, the bubbles generated by the cavitation phenomenon are reduced, and the impact of the bubble breakage on the impeller and pump body is reduced, thereby lowering the vibration and noise of the vortex pump during operation and prolonging the service life of the vortex pump.

Description

technical field [0001] The invention relates to a vortex pump, in particular to a vortex pump capable of preventing cavitation, and belongs to the field of fluid machinery. Background technique [0002] The pump is a general-purpose machine with a large volume and wide area and huge energy consumption. There are pumps working almost wherever there is liquid flow. Among the many pump products, the vortex pump has the advantages of high head, self-priming, gas-liquid mixed transportation, etc. It is widely used in agricultural irrigation, urban water supply and drainage, electric power and other industries. When the vortex pump is working, the liquid flows into the impeller from the pressure inlet, flows back to the flow channel after being accelerated by the impeller, and transfers energy to the liquid in the flow channel, and flows out from the pressure outlet after repeated repetitions, so that the pump has a high lift. The cavitation of the vortex pump means that when the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66
CPCF04D29/669
Inventor 包福兵赵飞林建忠
Owner CHINA JILIANG UNIV