High-pressure plunger pump with energy recycling function

Abstract

The invention discloses a high-pressure plunger pump with an energy recycling function and relates to the technical field of hydraulic energy recycling. The problem that many energy transmission links exist in the energy recycling process is solved. The high-pressure plunger pump with the energy recycling function comprises an outer shell and a cylinder body, wherein the outer shell comprises two end covers and a shell body with a through hole; the cylinder body is arranged in the through hole of the shell body; a swash plate is arranged between the cylinder body and one of the end covers; cylinder holes are formed in the cylinder body in a circumferential array; a plunger and sliding shoe assembly is arranged in each cylinder hole; the outer shell is provided with a fluid inlet and a fluid outlet which communicate with the cylinder holes; a fluid channel is arranged on the cylinder body; a hydraulic cavity is formed between each plunger and sliding shoe assembly and the inner wall of the corresponding cylinder hole and communicates with the fluid channel; the outer shell is provided with a recycling inlet and a recycling outlet which communicate with the fluid channel. The high-pressure plunger pump with the energy recycling function is mainly applied to high-pressure fluid equipment for industrial production to achieve the functions like recycling energy of waste high-concentration sea water in reverse-osmosis seawater.

Description

technical field [0001] The invention relates to the technical field of energy recovery for high-pressure fluid energy reuse, in particular to a high-pressure plunger pump for energy recovery. Background technique [0002] In many industrial production processes, such as various chemical production processes and reverse osmosis seawater desalination processes, they all operate under high pressure. These processes typically require the production of products from the energy of high-pressure fluids, which can be gases or liquids. In this kind of industrial production, it is often necessary to output a certain high-pressure fluid, and use the pressure of the high-pressure fluid to obtain a low-pressure fluid, and at the same time generate waste high-pressure fluid, but it is not possible to directly mix the high-pressure fluid and the low-pressure fluid directly, for example: in In the reverse osmosis seawater desalination process, the high-pressure seawater will produce fresh ...

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Problems solved by technology

[0004] In the process of realizing and using the above-mentioned existing energy recovery, the inventors found that there are at least the following problems in the prior art: the existing solutions are all realized through an independent energy recovery system, and the recovered energy needs to be passed through the corresponding mechanical The structure is transferred to the original high-pressure pump, resulting in more energy loss, and the independent energy recovery system also causes too much equipment in the industrial production process

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