Reserch On The Slipper Shoe With Bionic Non-smooth Surface For Highpressure Seawater Pump

As energy conservation, environmental protection and the implementation of the strategy of national Marine sea water hydraulic transmission system, reverse osmosis desalination systems, deep sea homework tools etc, will get more and more widely used, this system is the core power of the original axial plunger pump, high pressure water sliding boots vice is one of the key friction pair of it, and it is a set of typical high pressure overload. Low viscosity, poor lubrication of the sea, gasification pressure is high, and has a very strong corroding effect, especially the various components of complex pollution of impurities, in under the condition of high speed and heavy loading, sliding boots vice wear vulnerable to pollution, make the sea water pump performance degradation and premature failure. In this paper, application of non-smooth surface technology to improve the wear performance of sliding boots, vice, and application, with the method of numerical simulation and experimental research of non-smooth surface lubrication regularity.First of all, according to the actual working condition of the sliding boots vice and work characteristics, motion model and geometric model is established, and the bionic non-smooth surface arrangement in slip soles.Second, for single bionic unit to carry on the numerical simulation, the analysis of the effect of various factors on the bearing capacity, and determined several relatively optimal pit structures. Results pithead heap-leaching fan shape optimal surface, circular arc shaped cross section shape optimal; The optimal pit is a fan-shaped cone hole and the ball pit.Again, in view of the excellent machining specimen experiment pits, smooth surface and the contrast analysis of the experimental data of smooth surface. Under the condition of different rotating speed, the smooth surface of the friction coefficient are less than smooth surface.Finally, several excellent pits was applied to sliding boots deputy and the numerical simulation of the flow field analysis of the bionic unit size, deep diameter than the spacing between the load-bearing characteristics of water film, the regularities of the bearing capacity of water film changes with various factors are obtained and determine the optimal structure.