ES1298865U - Remote fire extinguishing system (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Remote fire extinguishing system, formed by the barrel (1), attached to the cylinder (16) through the narrowing (13) and characterized in that the piston (14) is installed inside the cylinder (16). , attached to the hydraulic actuator (2). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Remote fire extinguishing system

Technical sector

The present invention refers to a fire extinguishing system, related to the Forest Fire Control and Extinction Industry.

Background of the invention

The state of the art in the field of remote firefighting shows patents, which describe, for example, the firing of ballistic projectiles or charges of extinguishing agents, the use of robots and drones... but difficult technological implementation or dangerousness of these ideas makes , which are not used in practice in the fight against fire (documents P200900766, P200701886, 2130984,148238), or a rocket motor device WO2020257844 and ES 1252894U. There are also patents such as US2020018582 that describe the artillery projectile, fire retardant, but again difficult to apply, especially in inhabited territories. WO 2016/005645 Al describes another ballistic system, firing ice shells. At present, only aerial means allow firefighting in places that are not very accessible. However, high response times and complicated logistics of air operations make it very difficult to extinguish the fire in its initial phase.

Explanation of the invention

The effect of high-energy water shooting can be achieved with pyrotechnic or explosive charges as a propellant, however its handling by civilian personnel (in a fire environment) would be very dangerous. As an example, in forest fire extinguishing techniques, one of the direct attack tools are explosion extinguishers. However, consulted with the forest firefighters, they are rarely used, and it is because of their danger. The helicopter pilots refuse to let the firefighters take them on board. This is a serious logistical and security problem. Therefore, the present invention has the task of presenting a safe and easy-to-use remote extinguishing system. The operation of the system consists of launching a volume of water through the barrel (1), by a rapid movement of the double-acting hydraulic actuator (2) and raising the speed of the water in a narrowing (13), by Bernoulli's theorem. The hydraulic pressure (up to 400 bar), is generated in the pressure group (4) — powered by the generator set (5) and reaching the hydraulic actuator (2), through the hydraulic switch (6), activated by the unit control (3) — according to Figure! The use of a fast actuator (2) of 0.5m/s, allows to communicate a high amount of kinetic energy in a short time, to the volume of water (through the piston (14), allowing to reach targets inaccessible by a water cannon. standard.The system can make several consecutive shots, or continuous flow, thus providing the contribution of water with extinguishing agents in the area on fire.The shot is made by controlling the pressure/speed of the actuator (2), according to the distance between the barrel and The refilling of the cylinder (16) with water occurs when the hydraulic actuator (2) with the piston (14) is moved back and the filling valve (7) is opened at this moment. The non-return valve (8) acts at the time of firing, preventing the reverse flow of water towards the mixing tank (9), according to the diagram in Figure 1. The water follows a parabolic trajectory, dispersing due to the effects of fluid dynamics, mainly due to the drag force aerodynamic The system can be installed on a truck, a free-standing trailer, a stationary installation or can be airborne by helicopter. Once positioned, within the effective range, its operation is 24 hours, day and night regardless of the weather or orography of the terrain. the supply of water is produced from a tanker truck, or other available water source (using a pump).

Before being introduced into the cylinder (16), the water passes through a mixing tank (9), to add the extinguishing agents such as foaming agent and/or retardant. If the location of the mixing tank (9) is different from Figure 1, it is necessary to install a water pump between it and the cylinder (16).

The system can be used both for extinction of a specific fire, or as a means of cooling large areas, using it in sprinkler mode. For this purpose it will be necessary to change the geometry of the barrel, especially its section and outlet diameter. Parameters such as effective reach and volume of water projected depend directly on the hydraulic pressure applied to the actuator (2) and its working length, piston diameter (14), diameter ratio d1 / d2 and barrel length (with adjustable extension , shaped like a tube inserted into the barrel (1) and with a diameter (d3), -(this being optional).

Brief description of the drawings

To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached as an integral part of said description, where, with an illustrative and non-limiting nature, what has been represented has been following:

Figure 1.- Shows a modular diagram of the system and is made up of:

cannon (1),

Hydraulic actuator (2),

control unit (3),

Hydraulic pressure group (4),

Generator set (5),

Hydraulic switch (6),

filling valve (7),

Non-return valve (8),

Mixing tank (9),

Barrel Vertical Angle Actuator (10),

barrel extension actuator (11),

Swivel base (12),

Narrowing (13),

piston (14),

Rear cover (15),

cylinder (16)

Where: (d1) — cylinder diameter,

(d2) — barrel diameter,

(d3) — diameter of the barrel extension tube.

It is a conceptual working diagram. It shows all the essential elements and the mode of operation, according to the previous explanation. The location of the items in this diagram is for explanatory purposes only and may not correspond to the actual location. The barrel extension mechanism, with a hydraulic actuator (11) and a tube with a diameter smaller than that of the barrel (d3<d2), inserted inside it, is optional. Figure 1 represents a basic system with circular and concentric geometry of the piston / barrel assembly. This configuration is to simplify the explanation of the invention. Exact dimensions are subject to calculations, depending on the application.

Figure 2.- Shows a side view of the device of the invention, installed on a vehicle. It is an example of installation of the complete fire-fighting system on a 6x6 vehicle. Proposal for the location of the essential components, with the numbering that corresponds to the previous explanation. In this configuration, the system is completely autonomous and transportable. It is a graphical representation of one of the possible configurations.

Figure 3.- Shows the basic pressure circuit, necessary to move the double-acting hydraulic actuator (2). In this case, the high-pressure pump (B) is driven by an electric motor (M), fed from the generator set (5). The movement of the hydraulic actuator (2) is produced by the action of the hydraulic switch (6), acting on the valve (V).

Preferred embodiment of the invention

The project will be carried out by a company familiar with power hydraulic equipment and not necessarily with fire fighting equipment. Stainless steel tubing will be used, joining the barrel tube (1) with the cylinder (16), through a narrowing (13). Subsequently, in the cylinder (16), the stainless steel piston (14) is introduced. In the central part of the piston (14), the actuator rod (2) is fixed, whose cylinder is fixed to the rear cover (15). The barrel will be fixed through ball joints to the rotating base (12). To change the vertical angle, the barrel (1) is fixed to the base (12) through a double acting hydraulic actuator (10). The hydraulic actuator (2), Control unit (3), Hydraulic pressure group (4), Generator set (5), Hydraulic switch (6), Filling valve (7), Non-return valve (8), Mixing tank (9), Barrel Vertical Angle Actuator (10), Barrel Extension Actuator (11), are standard equipment, which are in mass production for other applications.

The second option for manufacturing the barrel will be using composite materials (aramid/carbon fibers). For this, it is necessary to make a mold, on which fabrics are placed (with the filaments oriented according to the design). Subsequently, it is impregnated with the epoxy resin, with the infusion method (with the use of a vacuum pump). process ends applying the post-curing temperature (according to the specifications of the epoxy resin used). For both manufacturing options (metal or composite materials), it is necessary to carry out the pressure test

hydraulics, to check for leaks or other manufacturing defects. The high-pressure hydraulic group, generator set, control unit, mixing tank, cannon and swivel base can be installed on a 6x6 truck of suitable tonnage to support the system as a whole, as shown in Figure 2. (It is possible to install it on other means of transport, as well as a stationary installation in strategic places). The way in which the invention is susceptible to industrial application is not indicated, being evident that it is focused on the Industry of Control and Extinction of Forest Fires.

Claims (2)

1. Remote fire extinguishing system, formed by the barrel (1), attached to the cylinder (16) through the narrowing (13) and characterized in that the piston (14) is installed inside the cylinder (16). , attached to the hydraulic actuator (2). 2. Remote fire extinguishing system, according to claim 1, where the hydraulic pressure comes from the hydraulic pressure group (4).