Multi-stage and multi-pipe efficient jet pump

Abstract

The invention relates to a multi-stage and multi-pipe jet pump, which comprises a pump body, a suction pipe, a first-stage jet pipe, a second-stage pipe and a third-stage pipe, wherein the outlet of the first-stage jet pipe is formed in the pump body; the outlet of the second-stage jet pipe is formed in the suction pipe; the outlet of the third-stage jet pipe is formed between the second-stage jet pipe and the pump body in the suction pipe; and the outlet direction of each jet pipe is along the medium flowing direction in a pipeline in which the jet pipes are positioned. In the invention, a multi-stage jet type is adopted to suck a sucked medium, generate the negative pressure by the jet in multiple different regions of equipment, and form a suction force of the medium flowing through the region of the medium so that the sucked medium rapidly flows through the region to form a multi-stage jet and make up the flow rate loss of the sucked medium in the pipeline or the pump body, thereby greatly enhancing the suction capability of the jet pump and the suction amount of the sucked medium and meeting the medium delivery requirements with higher efficiency.

Description

technical field [0001] The invention relates to a jet pump, in particular to a multi-stage multi-tube high-efficiency jet pump. Background technique [0002] The existing equipment that adopts the jet suction method for fluid transportation and mixing is mainly a venturi tube or a jet pump. The tube body is divided into three parts. The throat is provided with a suction port for connecting the pipe of the medium to be sucked, and the rear part is a reducer with an inlet for connecting the high-pressure jet medium pipe that provides high-pressure jet. When in use, the jet medium from the high-pressure pipeline passes through the reducer and forms a jet with a high velocity in the throat, and the absorbed medium connected to the jet suction port enters the throat under the action of the negative pressure of the jet, and mixes with the jet medium to form The mixed media are ejected from the outlet together and enter the output pipe, thus realizing the purpose of high-pressure ...

AI Technical Summary

Problems solved by technology

The defect of this kind of equipment is: limited by equipment and related equipment, in certain occasions, it is difficult to meet the requirements of output pressure and delivery efficiency

[0003] In addition, the jet tube of some jet pumps is located on the side of the pump body and extends into the pump body. The medium or the mixture of the pumped medium and the jet medium severely corrodes the jet tube, resulting in a reduction in the service life of the jet pump

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