RU99447U1 - HORIZONTAL, VERTICAL AND SIDE FIRE EXTINGUISHING SYSTEM ON THE BASIS OF KA-32A HELICOPTER - Google Patents

Abstract

 1. A horizontal and vertical fire extinguishing system based on a helicopter, characterized in that it contains a telescopic barrel with a profiled tapering unregulated nozzle, a controlled barrel located in the opening of the cargo door of the helicopter, a water pump, an engine that rotates the rotor of the water pump, a water tank with wings installed below the part of the fuselage of the helicopter, at least two tanks for the foaming agent, a control panel for starting and revolving the engine and an electric crane for shutting off the supply line working fluid to the telescopic barrel, a console for dispensing the flow rate of the blowing agent and an air system for cleaning the link of the telescopic barrel, using compressed air from the compressor of a helicopter engine. ! 2. The system according to claim 1, characterized in that the telescopic barrel is mounted on board the helicopter fuselage. ! 3. The system according to claim 1, characterized in that the tanks for the foaming agent are placed on the left and right side of the helicopter. ! 4. The system according to claim 1, characterized in that the control panel for starting and revolving the engine and the electric crane for shutting off the line for supplying the working fluid to the telescopic barrel is installed in the cockpit of the helicopter.

Description

The utility model relates to fire extinguishing means, in particular, using a helicopter equipped with fire extinguishing equipment, and is intended for extinguishing fires in high-rise buildings, extinguishing fires with an open burning area, delivery of adsorbing liquid substances, as well as substances for creating barriers against the spread of harmful substances on water surfaces, and washing elements of power lines.

The prior art helicopter with a fire extinguishing device equipped with an additional nozzle, which is installed at the end of the remote rod. The nozzle is connected to an air supply source. In this case, a rotary barrel and at least one vertical fire barrel, directed downward and installed inside the propeller’s swept area, are placed inside the additional nozzle (RU 2248916, 03/27/2005).

The disadvantages of this model are:

- long preparation for the second flight;

- the appearance of a load on the structure due to the large weight of the extension rod;

- a significant deterioration in handling when turning the nozzle.

Known helicopter telescopic installation for extinguishing a fire, containing a telescopic fire barrel, a water tank installed in the compartment of the helicopter, and a pumping unit with a water centrifugal pump. The fire barrel consists of an outer pipe and an inner pipe, a plunger with a ball lock mounted on the inner pipe, and a shut-off valve installed in the rear of the outer pipe, made retractable when water is supplied at the fire extinguishing site with the possibility of the nozzle moving out of the inductive flow zone created bearing system of helicopter propellers (RU 2240960, 11.27.2004).

The disadvantages of this model are:

- the inability to use a foaming agent;

- lack of lateral extinguishing agent;

- cleaning the telescopic gun with water, which makes it impossible to clean when fully developed.

Known helicopter fire extinguishing installation containing a container enclosed in waist bandages and suspended from the fuselage nodes, a system of hoses and pipelines with fittings, including a suction sleeve, a sleeve with a fire barrel, a manifold with nozzles, pumps placed in a sealed chamber, an ejector, a pull-up system suction sleeve. The installation is a complex of diverse equipment that allows you to effectively deal with the fire. It can carry out the ejection of fluid as a salvo method, and directional, adjustable in horizontal and vertical planes, while ensuring multiple fluid intake from nearby sources (RU 2097276, 11.27.1997).

The main disadvantage of this design is the increased danger to the crew and the helicopter, since when extinguishing a fire, the helicopter must fly to a burning object at a fairly close distance, which creates a danger of collision.

The task to which the proposed utility model is aimed is to create a horizontal, vertical and side fire extinguishing system based on a helicopter, which would eliminate the above disadvantages.

The technical result achieved by the implementation of this utility model is to increase the reliability, fire extinguishing efficiency with the possibility of adjusting the direction of liquid discharge and safety, supplying water in its pure form or with a foaming agent from 1 to 9% of the volume of water charged into the tank at a safe distance from the object .

The specified technical result is achieved in a horizontal and vertical fire extinguishing system based on a helicopter, comprising a telescopic barrel with a profiled tapering unregulated nozzle, a controlled barrel located in the opening of the cargo door of the helicopter, a water pump, an engine that drives the rotor of the water pump, a water tank with wings, at least two tanks for the foaming agent installed below the part of the fuselage of the helicopter, the control panel for starting and revolving the engine and the electric crane is closed I line supplying hydraulic fluid to the telescopic barrel, the control for the dosage of foaming agent flow and air cleaning telescopic trunk link system using compressed air from the compressor of the helicopter engine.

The telescopic barrel is mounted on board the helicopter fuselage.

Foaming agent tanks are located on the port side and starboard side of the helicopter.

The control panel for starting and revolving the engine and the electric crane for shutting off the working fluid supply line to the telescopic barrel is installed in the helicopter crew cabin.

The essence of the utility model is illustrated by the drawing, which shows a General view of the horizontal, vertical and side fire extinguishing systems based on the Ka-32A helicopter.

The horizontal, vertical and side fire extinguishing system based on the Ka-32A helicopter contains a telescopic barrel 1 with a profiled tapering unregulated nozzle 2, mounted on board the helicopter fuselage, a controlled barrel 3 located in the opening of the cargo door of the helicopter, a water pump 4, an engine 5 leading to rotation of the rotor of the water pump 4, a water tank with leaves 6 installed below the part of the fuselage of the helicopter, at least two tanks for foaming agent 7, placed on the left and right side of the helicopter, remote control unit starting and revolving the engine and the electric crane to shut off the fluid transfer line to the telescopic barrel 1 (not shown), a metering unit for the foaming agent flow rate and an air cleaning system for the telescopic barrel 1 link (not shown) using compressed air from a helicopter engine compressor. For smooth running of the barrel 1 an adjustable throttle is installed.

The control panel for starting and revolving the engine and the electric crane to shut off the supply line for the working fluid to the telescopic barrel 1 is installed in the cockpit of the helicopter.

The height of the horizontal, vertical and side fire extinguishing system based on the Ka-32A helicopter - from ground level to the level corresponding to the static ceiling of the Ka-32A helicopter.

As the working fluid, water, an aqueous solution with a foaming agent, or other special fluids can be used.

Conditions for ambient temperature - from a temperature of 5-10 ° C above the freezing temperature of the working fluid, to a temperature of + 45 ° C.

The horizontal, vertical and side fire extinguishing system based on the Ka-32A helicopter, at the choice of the helicopter crew, can operate in two main modes:

1st mode - pure water from the water tank or mixed with a foaming agent, under the pressure created by the water pump, is carried out through the telescopic barrel and nozzle beyond the sweeping surface of the helicopter rotors and is fed horizontally to the fire site.

2nd mode - water through the flaps of the water tank opened upon command of the helicopter crew is discharged in the vertical direction under the action of its own weight or through a controlled barrel located in the opening of the cargo door. The guided barrel also allows lateral supply of the extinguishing agent.

The horizontal, vertical and side fire extinguishing system based on the Ka-32A helicopter works as follows: upon arrival at the fire site, the helicopter hangs over any body of water with a depth of at least 0.5 m and draws water into a tank with a capacity of 3 cubic meters. for 40 seconds The co-pilot starts the engine and, at the command of the commander, opens the stopcock. Increasing engine speed, it supplies water in its pure form or with a foaming agent to the telescopic barrel. Under water pressure, the telescopic barrel extends beyond the inductive flow zone created by the helicopter rotor system. The water jet is controlled by the crew commander. A safe approach to obstacles and the operation of helicopter systems are monitored by a right pilot and an onboard mechanic. The telescopic barrel is cleaned from the cockpit by supplying air from the engine compressor through the throttle. Reducing the dimensions of the telescopic barrel contributes to the mobility and maneuverability of the helicopter.

The essence of the invention lies in the fact that this horizontal, vertical and side fire extinguishing system allows not only horizontal extinction of the upper floors of buildings, but also cutting off the fire by setting a foam barrier with a controlled barrel in the vertical direction or through the shutters of the water tank. The controlled barrel is switched from horizontal to vertical position from the cockpit controlled by an electromechanical damper, and the extinguishing agent is supplied from the gun barrel by the on-board operator (mechanic) by a manual damper.

The claimed horizontal, vertical and side fire extinguishing system based on the Ka-32A helicopter provides effective targeted fire fighting in high-rise buildings, fire extinguishing with an open burning area, delivery of adsorbing liquid substances, as well as substances to create barriers from the spread of harmful substances on water surfaces, and washing elements of power lines.

Claims (4)

1. A horizontal and vertical fire extinguishing system based on a helicopter, characterized in that it contains a telescopic barrel with a profiled tapering unregulated nozzle, a controlled barrel located in the opening of the cargo door of the helicopter, a water pump, an engine that rotates the rotor of the water pump, a water tank with wings installed below the part of the fuselage of the helicopter, at least two tanks for the foaming agent, a control panel for starting and revolving the engine and an electric crane for shutting off the supply line working fluid to the telescopic barrel, a console for dispensing the flow rate of the blowing agent and an air system for cleaning the link of the telescopic barrel, using compressed air from the compressor of a helicopter engine. 2. The system according to claim 1, characterized in that the telescopic barrel is mounted on board the helicopter fuselage. 3. The system according to claim 1, characterized in that the tanks for the foaming agent are placed on the left and right side of the helicopter. 4. The system according to claim 1, characterized in that the control panel for starting and revolving the engine and the electric crane for shutting off the line for supplying the working fluid to the telescopic barrel is installed in the cockpit of the helicopter.