Self water-replenishing flat valve plunger type extra-high pressure water pump

Abstract

The invention provides a self water-replenishing flat valve plunger type extra-high pressure water pump, which mainly comprises a cavity, a cooling unit, a rotating main shaft and a plunger flow-distribution unit. The cooling unit comprises a cooler and a water-replenishing pump; and the plunger flow-distribution unit comprises a flat valve component and a plunger skid shoe component. The plungerskid shoe component divides the cavity into a pressure chamber and an oil lubrication chamber which are independent from each other. The water-replenishing pump presses water at a water pump inlet into the cooler under the drive of the rotating main shaft, then the water flows into the flat valve component from the cooler to cool the oil lubrication chamber and provide low-pressure pressure waterfor the flat valve component, and simultaneously, the plunger skid shoe component performs reciprocating motion under the drive of the rotating main shaft to ensure that the flat valve component performs water absorbing and draining motions through the water pump inlet and a water pump outlet. The self water-replenishing flat valve plunger type extra-high pressure water pump solves the problems of over-high lubricating oil temperature and insufficient self-adsorption when an oil-water separation type hydraulic pump is used on shore, thereby reducing the running cost and improving the service life of the water pump.

Description

Technical field [0001] The invention relates to the field of positive displacement pumps, in particular to an ultra-high pressure water pump with a self-complementing water valve and plunger plunger. technical background [0002] Water pressure pump has been studied as a key technology in water hydraulic technology. Compared with mineral oil, water has a big difference in physical and chemical properties. For example, water has a smaller viscosity, a thinner water film, and is more corrosive, which increases the difficulty of sealing and lubrication. [0003] Due to the physical and chemical characteristics of the water medium, the current international hydraulic pumps mainly adopt the plunger structure, such as the Nessie series pumps produced by Danfoss in Denmark and the Hauhinco pumps in Germany. And the sea water pumps produced by Komatsu Studio in Japan are plunger pumps. Because plunger pumps are compared with vane and gear hydraulic pumps, the key friction pair is mainly ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a self-supplementing valve-distribution plunger-type ultra-high-pressure water pump, which solves the problems of excessive lubricating oil temperature and insufficient self-priming when the oil-water separation water hydraulic pump is used on land, thereby reducing operating costs and Improve the operating life of the water pump

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