Novel ultrahigh-pressure fluid pump

Abstract

The invention discloses a novel ultrahigh-pressure fluid pump, which comprises a fluid pump body and a hydraulic cylinder, wherein the fluid pump body comprises a fluid pump piston; a piston rod cavity body is set inside a hydraulic cylinder piston rod; a piston cavity body is set inside the fluid pump piston; the hydraulic cylinder piston rod is sealed on the fluid pump piston and the piston rod cavity body is communicated with the piston cavity body; a fluid inlet and a fluid outlet that are communicated with the piston cavity body are opened on the fluid pump piston; and one-way valves are respectively set at an outer side of the fluid inlet and an outer side of the fluid outlet. According to the invention, the piston rod cavity body and the piston cavity body are mutually communicated to form the fluid cavity body for fluid communicating; when the hydraulic cylinder piston rod is moved, the volume of the fluid cavity body is changed, thus the functions of absorbing the fluid and discharging the fluid are realized; in the aspect of communicating route, the fluid pump provided herein is completely different from the traditional fluid pump, thus the length and the volume of the whole fluid pump are greatly reduced; the reliability of running the fluid pump is improved; and the service life of the fluid pump is prolonged.

Description

technical field [0001] The invention relates to an ultrahigh pressure fluid pump, in particular to a novel ultrahigh pressure fluid pump with compact structure and long service life. Background technique [0002] Ultra-high pressure fluid pumps are widely used in mining, petroleum fine chemicals, food and drug processing and other industries. Conventional ultra-high pressure fluid pumps mainly have two structures, one of which is a crank-connecting rod structure driven by an electric motor or a diesel engine. increase; the other fluid pump uses a hydraulic cylinder to drive the fluid pump piston. Although the overall volume is reduced compared to the first fluid pump, and the pressure and flow of the fluid pump are improved, but because the hydraulic cylinder is an independent component, The piston rod of the hydraulic cylinder and the piston of the fluid pump are connected through a connecting piece, so the overall length of the fluid pump is relatively long and the volume...

AI Technical Summary

Problems solved by technology

Conventional ultra-high pressure fluid pumps mainly have two structures, one of which is a crank-connecting rod structure driven by an electric motor or a diesel engine. increase; the other fluid pump uses a hydraulic cylinder to drive the fluid pump piston. Although the overall volume is reduced compared to the first fluid pump, and the pressure and flow of the fluid pump are improved, but because the hydraulic cylinder is an independent component, The piston rod of the hydraulic cylinder and the piston of the fluid pump are connected through a connecting piece, so the overall length of the fluid pump is relatively long and the volume is relatively large, and the connection between the piston rod of the hydraulic cylinder and the piston of the fluid pump needs to use a flexible connection structure, so there is Defects that the connection is easily damaged and the life is short

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