Kostiuk N. Substantiation of Parameters of the Vibrating Machine for Disinfection and Change of Properties of Water

The dissertation is devoted to the solution of the scientific and technical problem - development of the vibrating equipment for cavitation disinfection and change of properties of water with the definition of its constructive parameters and rational modes of operation of the drive. For the first time an analytical model of the oscillating process of the working medium in a vibrating machine and the equation of the dependence of the maximum pressure in the pulsation chamber on the design parameters and modes of operation of the machine drive. The criterion of optimality of the parameter of the maximum productivity of the piston-type vibrating machine is proposed, namely: the presence of the maximum pressure of the working fluid in the pulsation chamber at the maximum fluid pressure at the outlet of the hole in the piston. For the first time, the dependences of the maximum pressure in the pulsation chamber on the design parameters and modes of operation of the machine drive were obtained from the constructed analytical model of the oscillating process of the working medium in a piston-type vibrating machine, oscillations of 0,002 m, and the ratio of its design parameters were determined: with a piston diameter of 0.1 m, it is recommended to use the diameter of the hole in the piston from 0,006 to 0,008 m The method of estimating the change in the basic properties of water and experimental confirmation that cavitation processes in a piston-type vibrating machine improve the basic characteristics of the aqueous medium, namely, the pH increases, the surface tension coefficient decreases, the salt content decreases. The process of inactivation of pathogenic flora of water from the river by vibration cavitation treatment was experimentally studied and the growth of bacterial colonies was reduced to 80 percent.