HYDRO-PULSE DEVICE FOR OBTAINING HIGH-PRESSURE LIQUID-CURRENT PRESSURES AND THE THEORETICAL ANALYSIS OF ITS WORK

Unsteady processes in the working fluid lead to the receipt of both hydraulic impulses and hydraulic shocks, the energy of which is currently used in a number of devices and machines. In hydraulic vibratory presses, hydraulic hammers, hammers and hydraulic perforators, the creation of significant pulses is necessary to ensure their basic functions. Hydraulic impact is used in hydrotarans for water lifting and rock destruction, drilling units for drilling wells with the help of a longitudinal shock impulse, hydroimpulse plants for cleaning surplus materials (liquidations), causing irregularities in the shape and precision of the parts. Devices - multipliers for obtaining ultra-high pressures of the working fluid, providing its impulse delivery, are provided, and the characteristics of the pulses and the periods of their action are adjustable. In the construction of hydroimpulse devices, a high-speed pulse jet is created, which leads to an increase in the efficiency and productivity of the units. Analytical studies have been carried out to determine some of the main geometric and structural relationships, the dynamic parameters of devices that use the hydrodynamic effect to create powerful hydroimpuls. Mathetical calculations, which follow from the formula of Zhukovsky N.E. for the origin of the hydraulic shock and the Bernoulli equation for the unsteady motion of the working fluid, made it possible to draw a number of practical conclusions and outline the direction of research that needed to be continued, including the use of computer technology because of the complexity of the dependencies obtained and the impossibility of transforming them to a fairly simple form. The research methodology and the calculation example are presented. The ways of improving devices are outlined. It is necessary to set up experiments to evaluate the theoretical results and the behavior of the liquid under conditions of its ultrahigh pressures.

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