STUDY OF THE CHANGES IN THE LIQUID FLOW RATE WHEN THE NUMBER OF SCREW TURNS IS CHANGED
The article deals with the issues of vortex formation in the screw. The study of these processes is accompanied by the need to study the change in the speed of fluid flows passing through the screw in the pipe. The solution of these issues is necessary when considering improving the efficiency of fire nozzles. The ever-increasing fire load from the building materials used in the construction and decoration of various types of premises contributes to the release of a large amount of toxic substances and with a high concentration, while the impact of fire hazards on people who are in these areas, as well as participants in extinguishing fires, sharply increases. Increasing the efficiency of fire nozzles will make it possible to solve a large number of different tasks in extinguishing fires and reduce the number of forces and means involved. These issues require the solution of numerous tasks for the modernization of fire extinguishing devices of various kinds. The experience of extinguishing fires has shown that the main difficulties in extinguishing fires at oil and gas facilities are the range of supply of fire extinguishing agent through the fire hose and a strong heat flow, which either destroys the extinguishing agent or provides great resistance to the incoming fire extinguishing agent into the combustion zone, which leads, in in turn, to an increase in consumption and a decrease in the efficiency of the supplied fire extinguishing agent.