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Fully water-lubricated super-pressure plunger water pump

A water-lubricated, plunger-type technology, applied in the direction of variable-capacity pump components, pumps, pump components, etc., to simplify the structure, reduce the impact sound, and solve the problem of friction and wear

Inactive Publication Date: 2011-01-26
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current medium and high pressure water pumps cannot meet the needs of the buoyancy adjustment system of submersibles, while there are few studies on ultra-high pressure water pumps, and even fewer hydraulic pumps for the special needs of manned submersibles

Method used

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  • Fully water-lubricated super-pressure plunger water pump
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  • Fully water-lubricated super-pressure plunger water pump

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] figure 1 The shown valve distribution full water lubricated axial plunger high-pressure sea / fresh water pump includes a water pump cavity, which is composed of a front end cover 2, a rear end cover 15, a cylinder body 14 and a casing 4 connected in sequence, and the rotating main shaft 1 It is connected with the housing 4 and the cylinder body 14 through ceramic bearings 5, 6, 23.

[0029] The left end face of the rear end cover 15 is machined with two holes along the axial direction, which are the inlet and the outlet of the water pump respectively, and an annular flow groove 18 is uniformly processed along the axial direction on the other end face. There are stepped holes equal to the number of plungers evenly distributed in the radial direction of the rear end cover, and threads are processed on the outside of the stepped holes for the instal...

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Abstract

The invention provides a fully water-lubricated super-pressure plunger water pump, mainly comprising a cavity, a live spindle and a plunger flow-distribution unit; the plunger flow-distribution unit comprises a flat valve assembly and a plunger slipper assembly; the plunger slipper assembly is used for dividing the cavity into a pressure cavity and a lubricating cavity which are independent from each other; the plunger slipper assembly carries out reciprocating motion by the driving of the live spindle so that the flat valve assembly sucks in water and discharges water through a water pump inlet and a water pump outlet, and water is simultaneously conveyed to the lubricating cavity through the water pump inlet so as to provide fluid to the rotating unit for lubricating and realizing full water lubrication. The flat valve assembly is designed integrally, and the assembly can be replaced quickly when maintenance so as to shorten maintenance time; the plunger is a stepped structure, the cylindrical surface thereof is provided with recesses, and the bottom of the slipper is provided with a stepped support cavity, thereby solving the wearing and friction problem of the plunger / plunger sleeve pair and slipper / sloping cam plate pair under high-speed heavy-duty condition, and prolonging the service life of the water pump.

Description

technical field [0001] The invention relates to the technical field of water-liquid pumps, in particular to an all-water lubricated ultra-high pressure plunger-type water pump. technical background [0002] Because water hydraulic transmission technology has the advantages of safety, flame retardancy, environmental friendliness, reliable use and convenient maintenance, etc., it meets the strong needs of sustainable development of human beings. Therefore, this technology has attracted the attention of all countries in the world and has become the frontier in the field of fluid transmission and control. topic. As the power source of water hydraulic transmission - water hydraulic pump has achieved certain development. [0003] At present, most of the research on water hydraulic pumps at home and abroad is concentrated in the medium and high pressure range, and the pressure is between 10 and 21 MPa. Abroad, such as Danfoss (Danfoss) company developed Nessie (Nice) series pump ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B1/16F04B53/18
Inventor 吴德发刘银水蒋卓郭志恒毛旭耀陈经跃唐辉李斌朱玉泉
Owner HUAZHONG UNIV OF SCI & TECH
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