摘要:
The proposed group of inventions relates to methods and devices for creating a gas-drop jet used for fire-fighting.The proposed inventions may be used for suppressing turbary, forest fires, fires in high-altitude buildings, etc. since they provide an increase in speed of extinguishing jet and a long range, thus raising the extinguishing properties of a jet.The aims of the proposed group of inventions are as follows: Creating an efficient stand-alone modular installation, allowing to obtain a jet of extinguishing fluid with an increased range and speed of flight and to use it independently or and in a complete set with various delivery vehicles (a car, a plane, a helicopter, etc.); Improvement of the thermodynamic cycle of the fire-fighting installation using gas turbine engine, and increase of its efficiency; Replacement of air containing an oxidizer (oxygen), used for creating a gas-drop jet, by products of combustion that are containing almost no oxidizer. The technical result in the proposed invention is obtained due to making a method for creating a gas-drop jet, including supply of fluid and gas working medium created using a gas turbine engine.The technical result in the proposed invention is obtained due to making a method for creating a gas-drop jet, where according to present invention, the turbine of the gas turbine engine is supplied with at least one outlet of gas working body located between its stages and connected to at least one heat exchanger and a cooler for the gas working medium of the installation.
摘要:
The present invention comprises supplying a liquid onto the source of a fire from an aircraft (7), wherein said liquid is supplied in the form of gas-droplet stream (8) obtained by dispersion in a gas flow and by acceleration of the dual-phase flow in a gas-dynamics nozzle (4). The pressure at the inlet of the nozzle (4) as well as the relative concentration of liquid in the dual-phase flow are selected according to conditions enabling the formation of a dual-phase low-dispersion and high-speed flow which has a high extinguishing-substance concentration and remains stable when submitted to interference. The fire-extinguishing device of the present invention comprises a liquid supply system (1), a gas supply system (2), a mixing chamber (3) for the gas and the liquid as well as a gas-dynamics nozzle (4), wherein all these members are is arranged onboard on aircraft (7). The gas-dynamics nozzle supplies the liquid towards the area of the fire source and is connected to a vessel through a duct. The mixing chamber (3) is further provided with a liquid dispersion system.