SK500342014U1 - Mobile storage and pumping device the concentrated foamer solution of the extinguishing foam - Google Patents

Abstract

The concentrate foam foam concentrate solution tank (1) comprises at least two segments (2) which are provided with a filling opening (3) and a separate shut-off valve (8) which is connected in parallel via a discharge line (4) via a breaker (9) or via a hydrostatic pump (14) with an electric motor and a dispensing device (5) into the dispensing hose (6).

Description

Technical field

The technical solution relates to a mobile storage and pumping device of a concentrated solution of a foam extinguishing foam, which is moved by cars to the vicinity of extinguishing large fires, especially in places with difficult access to fire equipment.

BACKGROUND OF THE INVENTION

It is known to store and pump a concentrated solution of a foam extinguishing foam in special stationary objects located at the manufacturer and in several well-spaced warehouses. Foaming agents are concentrated foaming agents which, when mixed with water in the correct proportions, form a foaming solution. A suitable particular type of concentrated solution of the extinguishing foam is pumped in stationary objects into a small separate operational tank located at the water tank of the fire-fighting vehicle, which mixes a suitable ratio of concentrated foaming solution and water into a suitable foaming solution - extinguishing foam. The admixing of the concentrated foaming solution may be, e.g. pressure by two pumps, t. j. a smaller foaming pump to be mixed is added to the water supply pump, or by using the built-in jet mixer, the foaming agent is sucked through a hose that connects the foaming nozzle to the foaming vessel and is automatically mixed with water. A portable in-line mixer is also known to be placed in the inlet water line and connected by a hose to the foaming source, and the mixing is through a calibrated orifice using a self-priming foaming pump to inject the foaming agent into a stream of water. The orifice or venturi mixer controls and measures the proportional amount of water and foaming agent. The pressure mixing tank is suitable for expelling the foaming agent from a closed tank with water (with or without a separation membrane), using a water jet flowing through the Venturi nozzle. The pump mixer uses a pressure drop between the discharge and suction side of the water pump to suck the foam into the water through a variable or fixed orifice connected to the Venturi mixer located in the bypass line between the pump suction and discharge.

The foam formed is a dispersion system in which the dispersed substance is a gas (air) and a liquid dispersion medium (a heterogeneous mixture of gas and liquid). It is an unstable system that is subject to rapid changes and foam is a cluster of air bubbles formed from a foaming solution. In doing so, all the foams are unstable and go into the initial state. The rate of this conversion is an important indicator for assessing foam stability. For fire extinguishing foams, half or quarter disintegration is determined as one of the basic indicators of their quality. The main extinguishing effect in all kinds of foams is choking. In the event of fire, the foam will cover the entire burning area with all the unevenness, creating an oxygen-poor environment in the fire and, in some types of foam, rich in water vapor. Combustion will first slow down until it stops completely. The cooling effect of foams depends on the type of foam used. The cooling effect is directly proportional to the water content of the foam. The advantage of heavy foam is that it protects the walls of buildings and warehouses in the immediate vicinity of the fire from radiant heat. It is also used to block runways at airports in emergency landings. Light foam with high foaming number is used to extinguish fires in large halls.

A wide range of special foams is currently being produced to produce heavy, medium and light foam for extinguishing. The so-called. multipurpose foams, which are suitable for almost all areas where fire class A and B are used for extinguishing fire. The foams are divided into:

protein in the form of a water-soluble liquid and made from hydrolysed proteins free of fluorinated surfactants, which contains foam stabilizers, preservatives, anticorrosives and antifreeze additives. They are divided into protein for non-polar flammable liquids (Tutogen F and the like), protein for polar flammable liquids (Polydol, Tutogen L and the like).

fluoroprotein, i. j. Protein foams with fluorinated surfactant additives which are divided into fluoroprotein for non-polar flammable liquids (Aerowater XL-3 and the like), fluoroprotein for polar flammable liquids and containing foam stabilizers (Tutogen FP and the like), film-forming fluoroprotein for polar flammable liquids and containing polysaccharides and aqueous film forming agents (Alcoseal and the like) and film forming fluoroprotein containing water film forming agents (Pertoseal and the like).

Synthetic in the form of a mixture of surfactants, which may contain fluorinated surfactants with supplementary stabilizers, which are divided into fluorine-free detergent surfactants (i.e. sulfates, high molecular weight alcohol sulfates) and other components (i.e. foam stabilizers, surfactants).

- miscibility, antifreeze additives) for detergent for non-polar flammable liquids (Expyrol, Expandol and the like) and detergent for polar flammable liquids and containing polysaccharides (Expyrol FA-S and the like).

alcohol-resistant foams suitable for hydrocarbon fuels and resistant to degradation when applied to the surface of water-miscible liquid fuels, some alcohol-resistant foams may form a polymer layer on the alcohol surface;

Aqueous film-forming foams (AFFF) consisting of a mixture of hydrocarbons and fluorinated surfactants which have the ability to form a water film on the surface of some hydrocarbon fuels and are divided into AFFF containing film-forming substances (Light Water, etc.) and AFFF for flammable polar liquids containing polysaccharides and film forming agents (Light Water, Moussol APS) and the like

film-forming fluoroprotein foams (FFFPs) and the surface of some hydrocarbon fuels.

The disadvantage of the current stationary storage and pumping equipment of the concentrated solution of the extinguishing foam foaming agent is their determination only for the dispensing of one type of foaming agent, high investment investment demand, small number and thus a large transport distance of fire vehicles from the fire or storage place. The prolongation of the transport time of the concentrated solution of the extinguishing foam foaming, especially during a fire, unnecessarily increases the demands for a larger number of necessary vehicles for fire extinguishing, extinguishing efficiency and makes extinguishing more expensive.

According to patent RU2487030, the efficiency and effectiveness of fire extinguishing by mobile fire-fighting line is increased. It consists of several wagons mounted on railway undercarriages and contains water pumping stations and extinguishing agents, couplings between tanks, pumps with hoses for direct intervention into fire with the possibility of manual or remote control, or pumping into the fire extinguishing pipes. This mobile facility also includes fire and accommodation facilities.

According to the technical solution of US 20100083868 A1, a mobile railway fire extinguishing device is known which has a train-mounted fire extinguishing line mounted on railway bogies on the outside. The upper wall of the housing has an opening for a remote-controlled or automatic extinguishing liquid discharge device, the extinguishing agent volume compensator being connected via a connecting line from its adjacent wagons.

-4The LRZ NT fire rescue train of a railway company from Switzerland is also known for firefighting, especially in tunnels. It consists of a fire extinguishing part and an evacuation part, both of which are supplemented by cars. It includes three fire-fighting systems; j. water supply via hoses on the roof of vehicles, various foam connecting hoses and hand-held foam fire application equipment. The disadvantage of this solution is the complicated work and creating dangerous situations for employees during long extinguishing.

The common disadvantage of all mobile equipment on railway bogies is that they are specialized complex fire-extinguishing lines with a high cost of intervention, which are primarily intended for extinguishing fires related to railway transport and near the railway line being built, said equipment not being considered as commercially available single-purpose special mobile storage and pumping equipment of various types of concentrated solution of extinguishing foam for common fire-fighting vehicles.

The essence of the technical solution

These drawbacks are largely eliminated by the mobile storage and pumping equipment of the concentrated solution of the extinguishing foam foamer according to the technical solution, consisting of a tank with a filling opening, discharge pipe, dispensing device and dispensing hose. The essence of the technical solution is that the tank of the concentrated solution of the extinguishing foam is formed by at least two segments, which are equipped with a filling opening and a separate shut-off valve of the discharge piping connected in parallel with the discharge piping through a breaker or hydrostatic pump with electric motor. the discharge hose, with the tank positioned above ground level.

It is advantageous if the dispensing hose is provided with a control valve and the tank of the concentrated solution of the extinguishing foam foaming agent and the dispensing device is mounted on a support or on the frame of the road wheeled conveyor.

Furthermore, it is advantageous if the tank of the concentrated solution of the extinguishing foam is externally provided with a ladder and / or the dispensing device is provided with an outer cover.

It is also advantageous if the frame of the road wheel conveyor is provided with vertical anchoring on at least one outside.

The mobile storage and pumping equipment of the concentrated extinguishing foam solution according to the technical solution is technically simple and at low investment demands, the common moving of cars allows several types of concentrated extinguishing foam solution at the same time to a technologically suitable and convenient location near large fire extinguishing. access to fire equipment. The device enables acceleration of filling and reduces the length of the transport distance when filling fire vehicles from the place of fire with the most suitable type of concentrated solution of extinguishing foam, which significantly reduces the number of vehicles required for fire fighting, increases the efficiency of extinguishing and reduces fire extinguishing. As it is a simple and accessible special mobile storage and pumping device of concentrated solution of extinguishing foam for common fire extinguishers with a tank composed of segments with higher handling in terrain compared to tankers, it can be used also in difficult terrain and in places without railway transport network.

BRIEF DESCRIPTION OF THE DRAWINGS

A specific example of a mobile storage and pumping device of a concentrated extinguishing foam solution according to the invention is shown in the accompanying drawings, in which: FIG. 1 shows a cross-sectional view of a tank composed of four segments filled with different kinds of concentrated foaming extinguishing foam solution with a ref. A, B, C, D, wherein the tank and the dispensing device of the concentrated extinguishing foam solution are mounted on a common backing and a breaker is mounted in the discharge line; 2 is a cross-sectional view of a tank composed of four segments filled with different types of concentrated foam extinguishing foam solution. A, B, C, D, where the tank and dispenser of concentrated extinguishing foam solution are mounted on the frame of the road wheel conveyor, the dispensing device is equipped with an outer cover, the tank is equipped with a ladder from the outside, the road wheel frame is equipped with both external a vertical breaker is installed in the sides and an interrupter is mounted in the discharge line; 3 is a view of an alternative device shown in FIG. 2, which has a hydrostatic pump with an electric motor mounted in the discharge line after the interrupter.

-6Example in Embodiment

An example of a mobile storage and pumping device of a concentrated fire extinguishing foam solution according to the invention is shown in FIG. 1. The apparatus consists of a tank 1, which comprises four segments 2 filled at different heights with different kinds of concentrated foam extinguishing foam solution. A, B, C, D, wherein the tank 1 and the dispensing device 5 of the extinguishing foam solution are mounted on a common support 10. Each segment 2 of the tank 1 is provided with a separate filling opening 3 and a separate shut-off valve 8 of the discharge line 4. connected in parallel via the discharge line 4 via the breaker 9 and the dispensing device 5 to the dispensing hose 6 with the control valve 7. The tank 1 of the concentrated extinguishing foam solution and the dispensing device 5 are fitted with a washer 10 on the ground.

The apparatus with the washer 10 is mounted on a suitable, best elevated ground terrain (not shown) in a potential fire situation where its attendant ascends to the upper part of the tank I of the apparatus, e.g. After the ladder (not shown), etc., opens the respective filling openings 3 of the empty tank segments 2 and the four emptying solution of the foam extinguishing agent with the ref. A, B, C, D with closed shut-off valves 8 connected to the discharge line 4, and then the filling openings 3 of the empty tank segments 2 are closed, whereby the device is in the ready operating state. If a concentrated fire-fighting foaming solution is to be filled into the operational tank of a fire-fighting vehicle, this is brought to the apparatus, preferably below its level. Next, the shut-off valve 8 of the necessary type of concentrated foam extinguisher solution, e.g. s ozn. B and pumped through the discharge line 4, the discharge hose 6 and the control valve 7 by gravity from this segment 2 of the tank I the necessary amount of concentrated extinguishing foam solution shown by the dispensing device 5, then closing the shut-off valve 8 and dispensing the hose 6 to the starting position. However, if a fire-fighting vehicle is placed above or at the plant level, the discharge pipe 4 must be disconnected in the interrupter 9 after the shut-off valves 8 are closed and the continuous pump not shown is connected to its ends in a known manner. The shut-off valve 8 of the necessary type of concentrated extinguishing foam agent solution, e.g. s ozn. B and through a continuous pump, the necessary amount of concentrated extinguishing foam solution is pumped through the discharge pipe 4, the discharge hose 6 and the control valve 7 from this segment 2 of the tank 1,

The shut-off valve 8 is closed and the continuous pump is removed from the discharge line interrupter 9. Subsequently, the discharge line 4 and the discharge hose 6 are returned to the initial position. If necessary, the device according to the invention filled with a concentrated solution of the extinguishing foam can be moved to the vicinity of the fire.

Another example of a mobile storage and pumping device according to the invention is shown in FIG. 2. The apparatus consists of a tank 1 comprising four segments 2 filled at different heights with different types of concentrated foam extinguishing foam solution. A, B, C, D, wherein the tank 1 and the dispensing device 5 of the concentrated extinguishing foam solution are mounted on the frame 11 of the road wheel conveyor. Each tank segment 2 is provided with a separate filling opening 3 and a separate shut-off valve 8 of the discharge line 4, which is connected in parallel by the discharge line 4 via a breaker 9 and dispensing device 5 to dispensing hose 6 with control valve 7. the foam is provided with an outer cover 15, the tank 1 of the concentrate solution of the extinguishing foam is provided on the outside with a ladder 12 and the frame 11 of the road wheel conveyor is provided with vertical anchoring 13 on each outside.

The empty device on the car chassis moves to the filling point where its operator ascends to the upper part of the tank and the device along the ladder 12 and opens the respective filling holes 3 of the empty tank segments 2. four types of concentrated foaming solution of fire extinguishing foam with ref. A, B, C, D with closed shut-off valves 8 connected to the discharge line 4 and then the filling openings 3 of the empty segments 2 of the tank 1 are closed. Subsequently, the device is moved to a designated location where, after being released from the car, at each outside of the frame 1J. secures the ground by vertical anchoring 13, thereby being in its starting position. If the concentrated fire-fighting foaming solution is to be filled into the operational tank of a fire-fighting vehicle, this is brought to the apparatus. If necessary, the frame 11 of the road wheel conveyor is disengaged from the ground by vertical anchoring 13 at each exterior, and the device is moved as close as possible to the place of need by releasing it from the car on each exterior.

13. Preferably, the operating tank of the fire truck is located below the level of the device.

Subsequently, the shut-off valve 8 of the necessary type of concentrated solution of the extinguishing foam is opened, e.g. And and through the discharge line 4, the dispensing hose 6 and the control valve 7 by gravity from this segment 2 of the tank 1, pumped the necessary amount of the concentrated extinguishing foam solution displayed by the dispensing device 5. Then the shut-off valve 8 closes and the dispensing hose 6 returns back to the starting position. However, if a fire-fighting vehicle is placed above or at the level of the equipment, it must first be followed by the closed shut-off valves 8 of the concentrated foam extinguishing solution, e.g. s ozn. A, by means of the interrupter 9, disconnect the discharge line 4 and, furthermore, the external continuous pump (not shown) is connected in known manner to its ends. Subsequently, the shut-off valve 8 of the necessary type of concentrated extinguishing foam agent solution, e.g. s ozn. A and not shown by the continuous pump through the discharge line 4, the discharge hose 6 and the control valve 7 are forcibly pumped from this segment 2 of the tank 1 the required amount of concentrated extinguishing foam solution displayed by the dispensing device 5. 8 and disassembles the continuous pump from the discharge line interrupter 9. Then, the discharge line 4 in the interrupter 9 and the dispensing hose 6 return to their starting position to refill the spent concentrate solution of the extinguishing foam.

Another example of a mobile storage and pumping device of a concentrated extinguishing foam solution according to the invention is shown in FIG. This device, unlike the device shown in FIG. 2, a hydrostatic pump 14 with an electric motor driven preferably from a car battery or from the mains is mounted downstream of the interrupter 9 in the discharge line 4.

The device shown in FIG. 3 allows the return of the hydrostatic pump 14 as well as the external continuous pump not shown in FIG. 2, quickly filling the segments 2 of the empty tank 1 with the respective shut-off valve 8 open. The empty device is moved on the chassis to the filling point, where its operation gradually pumped into the empty segments 2 of the tank 1 through the delivery hose 6, control valve 7 and discharge line 4 into the respective segment 2 of the tank 1 with the open shut-off valve 8 the necessary amount of concentrated extinguishing foam solution, which is displayed by the dispensing device 5, and then the filling openings 3 of the empty segments 2 of the tank 1 are closed, thereby being in the ready state. Subsequently, the operator shuts off the hydrostatic pump 14 and closes the shut-off valve 8 of the respective

9 of the tank segment 2 and furthermore the device performs the same function as the device shown in FIG. 2 with an external continuous pump not already shown.

The embodiments described and illustrated are not the only possible solutions of the mobile extinguishing foam concentrate solution according to the technical solution, since the tank of the extinguishing foam concentrate solution may consist of a different number of segments than shown and may be equipped with several ladders of another construction, the upper part of the tank can be equipped with safety railing, all the segments of the tank do not have to be filled with different types of concentrated extinguishing foam solution, the dispensing hose does not have to be equipped with a control valve contain an outer casing or this may be of a different design and the hydrostatic pump with the electric motor may be permanently connected to the open circuit breaker in the pressure pipe or the like.

Industrial usability

Mobile storage and pumping equipment of a concentrated solution of extinguishing foam is suitable especially for ensuring fire protection of training areas of armed forces, airports, forest stands in a protected landscape area, eventually protected natural formation and monuments that may be endangered by fire.

Claims (8)

PROTECTION REQUIREMENTS Mobile storage and pump device of a concentrated extinguishing foam solution, consisting of a tank (1) with a filling opening (3), a discharge pipe (4), a dispensing device (5) and a dispensing hose (6), characterized in that the tank (1) the concentrated extinguishing foam foaming solution consists of at least two segments (2), which are provided with a filling opening (3) and a separate shut-off valve (8) of the discharge line (4) which is connected in parallel by the discharge line (4) 9) and a dispensing device (5) into the dispensing hose (6), the tank (1) being located above ground level. Mobile storage and pumping device of the concentrated extinguishing foam solution according to claim 1, characterized in that a hydrostatic pump (14) with an electric motor is mounted in the discharge line (4). Mobile storage and pumping device of the concentrated extinguishing foam solution according to claim 1 or 2, characterized in that the dispensing hose (6) is provided with a control valve (7). 4. The mobile extinguishing foam concentrate solution storage and pump device according to claim 1, wherein the tank (1) of the extinguishing foam concentrate solution and the dispensing device (5) are mounted on a support (10). Mobile storage and pumping device of the foam extinguishing foam solution according to claim 1 or 3, characterized in that the tank (1) of the foam extinguishing foam solution and the dispensing device (5) are mounted on the frame (11) of the road wheel conveyor. Mobile storage and pumping device of the concentrated extinguishing foam solution according to claims 1 to 5, characterized in that the tank (1) of the extinguishing foam concentrate solution is externally provided with a ladder (12). -11 Mobile storage and pumping device of a concentrated extinguishing foam solution according to claim 5 or 6, characterized in that the frame (10) of the road wheel conveyor is provided with at least one outside an vertical anchoring (13). Mobile storage and pump device of the concentrated extinguishing foam solution according to claims 1 to 7, characterized in that the dispensing device (5) is provided with an outer cover (15).