Research of hydraulic resistance of small-size ship non-return valves

Abstract

The article presents the acomplishments of the work of JSC "Shipbuilding & Shiprepair Technology Center" Design Bureau "Armas" employees, who have developed a product line of small-size ship non-return valves. For the purpose of presenting the object of study, the authors give a general view of the classical design and the alternative design of a general view of small-size ship non-return valves. The simulation of fluid dynamics, which is a power fluid "water" in normal climate conditions and a power fluid hydraulic drive in negative temperatures, in a flow channel of small-size product verifies ability of mechanical design to proper function. The authors present the results of prototype testing. The comparison of a graph of hydraulic resistance in power fluid hydraulic drive in minus temperatures estimated by a numerical method and the result of the verification test in site proves the validity of the use of the numerical method. End products DN 10 have been delivered to JSC "PO "Sevmash"" for project 03660 "Yason" underwater vehicle developed by the Malachite Design Bureau.