EP1075316B1 - Verfahren und hochkapazitätseinrichtung zur schaumlöschung und vorrichtung zum aufbringen von schaum - Google Patents

Verfahren und hochkapazitätseinrichtung zur schaumlöschung und vorrichtung zum aufbringen von schaum Download PDF

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Publication number
EP1075316B1
EP1075316B1 EP99915962A EP99915962A EP1075316B1 EP 1075316 B1 EP1075316 B1 EP 1075316B1 EP 99915962 A EP99915962 A EP 99915962A EP 99915962 A EP99915962 A EP 99915962A EP 1075316 B1 EP1075316 B1 EP 1075316B1
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EP
European Patent Office
Prior art keywords
foam
pressure
spreading device
mixer
fire fighting
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EP99915962A
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English (en)
French (fr)
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EP1075316A1 (de
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Istvan Szöcs
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
    • A62C3/065—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products for containers filled with inflammable liquids

Definitions

  • the invention relates to a method and a high-capacity apparatus for producing fire fighting foam which method and apparatus able to produce quickly a bulk of fire fighting foam and to discharge the produced fire fighting foam onto a large surface in a layer of uniform thickness, which method and apparatus can particularly be used as fire extinguisher of tanks containing liquid fluids especially liquid hydrocarbons and to extinguish fire thereof.
  • composition consisting of foaming agent, water and gaseous medium.
  • air-foams are generally used to extinguish fire of storage tanks containing inflammable liquids, especially liquid hydrocarbons.
  • foam fire extinguishing devices used art storage tanks or storage tank farms containing inflammable liquids are fixed or semi-fixed fire extinguishers.
  • Semi-fixed fire extinguishers comprise pipelines or a pipeline-network conveying the foaming agent solution from the inlet place to the storage tanks, one or several foam-generating heads, foam supply pipeline(s) and foam introducing device(s). Separate pumps (firefighting trucks) are necessary to ensure the streaming of the foaming agent solution.
  • the foaming agent used for producing the fire fighting foam is taken to the spot after the fire has broken out, the solution can be prepared and the fire fighting foam can be produced only afterwards.
  • the fixed fire extinguishers have in addition a solution supply centre, a so called extinguishing centre as well.
  • the extinguishing centre is equipped with a ready-to-use foaming agent storing tank, water supply connection taps to gain water or a water-reservoir of the required capacity, proportioners to mix the foaming agent and pumps to establish the required pressure, and these pumps are connected to the pipeline of the foaming agent solution with appropriate valves inserted.
  • the most important disadvantage is that there is a long period of time between the inflammation and the begin of extinction of the fire. Usually it takes about 10 minutes to 2 - 3 hours from the detection of the fire till starting to extinguish it to complete the fire extinguisher system, produce the foaming agent solution and then the fire fighting foam from the foaming agent available on the spot or taken to the spot just that time, and to fill and activate the system to start producing the foam. Further, after the extinguishing of the fire has been started, it also takes significant time to produce enough foam to form a foam blanket of the required thickness and to spread this amount of foam in uniform thickness on the surface of the burning liquid.
  • the damage caused by the fire is permanently increasing regarding both the material destroyed and the growing damage done to the otherwise valuable tank, while the environment is also being permanently polluted.
  • the surface of a tank of 30000 m 3 is about 2000 m 2
  • the burping-rate constant of petrol is 7 mm/min, so approximately 14 m 3 petrol is burnt in the fire every minute.
  • the released heat also endangers the surrounding establishments, and if it is a tank farm, the other tanks are also considerably endangered.
  • the limit of foam production is determined by the upper limit of the transporting capacity of the device generating the flow of the solution, e.g. the capacity of the pump.
  • a further limit is set by the narrow cross section of the nozzle used for foam production.
  • a further disadvantage of the method is the varying quality of the foam, as the quality of the fire fighting foam produced as described above is varying depending on the actual flow conditions, reducing the effectiveness of extinguishing the fire.
  • a further disadvantage of the above described fire extinguishers in connection with the former problems is that the foam let to the surface of the liquid is uneven.
  • the known method of letting the foam to the surface at certain places along the circumference of the tank or discharging the foam from the foam box does not form a foam blanket of uniform thickness, and it takes long time till the foam emitted forms a foam blanket entirely covering the surface of the liquid.
  • the part of the surface not covered with foam keeps burning during this long time and the foam may be spoiled at the edge of the foam blanket, therefore the process of extinguishing drags out.
  • the fundamental consideration of the invention is that the disadvantages described above can be attributed to the simultaneity of generating and applying the foam.
  • the basic idea of the invention is that if the production and application of the fire fighting foam is divided into two separate actions, that is, if the generation and the conveyance of the fire fighting foam is separated in a way that the generation of the foam is independent from its flowing, and we store the energy necessary for the conveyance of the foam together with the essentially ready foam in the form of pressure energy, all these make it possible to produce foam of uniform quality that can be better influenced than in case of the known methods, and to adjust the quantity emitted, which makes the extinction of the fire quick and economical.
  • foam can be emitted in a smooth manner within a short time with a device where the foam is emitted not at a single point, but along a longer section, preferably along the circumference of the surface of the liquid or the sidewall of the tank etc. at the same time, the device being able to emit the same amount and quality of foam at any point of emission along the section.
  • a composition is prepared consisting of foaming agent, water and gaseous medium.
  • the essence of the method is that the composition is prepared via dissolving or emulsifying the components in one another under overpressure, the composition prepared this way is stored under overpressure at the required place for the required period of time, transported if necessary while the overpressure is maintained, and it is expanded via decompressing it on the spot and at the time of application.
  • the water-soluble gaseous medium can preferably be carbon-dioxide.
  • the overpressure is chosen to be at least 10 bar, preferably more than 15 bar. Dissolution is made at ambiant temperature. It is quite advantageous to complete the solution in a way that liquid carbon-dioxide is absorbed in water.
  • water-insoluble gases e.g. halogenated hydrocarbons
  • the gaseous medium is to be dispersed in the foaming agent or the aqueous solution thereof at a pressure of 10 - 40 bar, preferably above 16 bar.
  • known emulsifying agents indifferent against the foaming agent can be used.
  • the ready-to-use fire fighting foam is generated when the composition is released to the atmospheric pressure, by expansion of the gaseous medium dissolved or dispersed in the composition, via certain inflation of the generated bubbles as a result of the decrease of overpressure.
  • the composition under overpressure is let out to atmospheric pressure preferably at the place of application, above or below the burning surface of the liquid, therefore the fire fighting foam is immediately used on the spot when it takes its final form, and the apparatus producing the foam can be considered as a fixed fire extinguisher.
  • the essence of the apparatus according to the invention suitable or producing fire fighting foam being a solution for the problem is that it comprises a high-pressure foam source, a foam expanding spreading device and a pressure resistant pipeline connecting the high-pressure foam source with the foam expanding spreading device.
  • a preferable, automatic embodiment of the apparatus comprises a valve inserted in the pressure resistant pipeline, preferably a remote controlled valve.
  • the embodiments of the apparatus of the invention can be built up to different extent, depending on the demand.
  • the high-pressure foam source of the apparatus has a high-pressure tank containing a composition, under overpresure, consisting of foaming agent, water and gaseous medium and the pressure resistant pipeline is connected to the opening of the tank with a main valve inserted.
  • the high-pressure foam source of the apparatus comprises a pressure resistant high-pressure tank containing water with foam generating gas absorbed in it under overpressure, a foaming agent container and a mixer, the pressure resistant high-pressure tank is connected to one inlet of the mixer with a stop-valve inserted, and the foaming agent container is connected to the other inlet of the mixer, while the outlet of the mixer is connected to the pressure resistant pipeline directly or with a second valve inserted.
  • the high-pressure foam source of the apparatus comprises an absorbing vessel and a liquid or gaseous foam generating gas container connected to one inlet of the absorbing vessel directly or with a pressure controller inserted, a mixer with a foaming agent container connected to one of its inlets, the other inlet of the absorbing vessel is fashioned in a way that it can be connected to a water supply, the outlet of the absorbing vessel is connected to the other inlet of the mixer, and the outlet of the mixer is connected to the pressure resistant pipeline.
  • the high-pressure foam source of the apparatus comprises an absorbing vessel and a liquid or gaseous foam generating gas container connected to one inlet of the absorbing vessel directly or with a pressure controller inserted, a mixer with a foaming agent container connected to one of its inlets, the other inlet of the mixer is fashioned in a way that it can be connected to a water supply, the outlet of the mixer is connected to the other inlet of the absorbing vessel, and the outlet of the absorbing vessel is connected to the pressure resistant pipeline.
  • the pressure resistant pipeline of the apparatus branches and a disconnecting valve is inserted in each branch of the pipeline.
  • the apparatus comprises a foam expanding spreading device to be used for discharging fire fighting foam onto a large surface in a layer of uniform thickness.
  • the essence of the first version of the device to be primarily used at applications of lower output demand is, that it comprises an admission opening and a discharge mouth, arranged on a tubular distributing body suitably forming a closed loop, preferably of torus shape, the discharge mouth, suitably a slit or a set of holes, is situated on the nappe of the tubular distributing body along its length, preferably along its generating line.
  • the device is a longer one, it is an advantageous form where the discharge mouth, suitably a slit or a set of holes, is formed in a way that its size per unit length of the tubular distributing body. is growing according to the distance from the admission opening.
  • the essence of the second version of the foam expanding spreading device to be used for discharging fire fighting foam onto a large surface in a layer of uniform thickness, to be primarily used at applications of higher output demand, is that it comprises an admission opening and a discharge mouth, a tubular distributing body suitably forming a closed loop, preferably of torus shape, a suitably tubular high-pressure receiving chamber preferably forming a closed loop, preferably of torus shape, mostly arranged in a way that the torus shaped distributing body is concentrically surrounded by the torus shaped high-pressure receiving chamber, the distributing body is connected to the high-pressure receiving chamber with hydraulically balanced feeding, and the discharge mouth, suitably a slit or a set of holes, is situated on the nappe of the tubular distributing body along its length, preferably along its generating line, and the admission opening is the admission opening of the high-pressure receiving chamber.
  • the main advantage of the method according to the invention is that the fire fighting foam is generated when the composition of the foaming substance is released from the apparatus to the space of atmospheric pressure by expansion of the compressed gaseous medium in the composition, therefore the foam of the required quality is surely produced. It is a further advantage that the risk of failure is very low as there is no nozzle-like narrowing in the pipelines.
  • the tanks storing the composition with the gaseous medium absorbed in it are pressurised energy-storing devices, hence their operation usually does not depend on external factors, e.g. intermission of electric supply etc, and the set-up time before starting extinguishing is negligible.
  • a further significant advantage of the method and apparatus of the invention is that it is suitable for realising very high foam intensity. If we want to empty a tank filled with the required quantity of composition of 16, 25 or 40 bar operational pressure during a pre-determined period of time, knowing the length of the foam supply pipeline we can determine the required diameter of the pipeline. For example it takes 3 minutes to empty an experimental tank filled with 50 kg composition from 14 bar to atmospheric pressure through a 2" pipeline of 4 meter length, the time of extinguishing is approximately the same, and the foam blanket laid on the approximately 10 m 2 surface of the liquid is 10 cm thick, resulting in successful extinction of the fire.
  • a further advantage of the method and apparatus according to the invention is that it supplies foam of uniform quality.
  • the ratio of all the components of the foam is adjusted when completing the composition in advance, the ratio of the volume of the bubbles and the quantity of the foaming agent solution, that is, the spreading rate of the foam is no longer dependent on external parameters. It also implied the possibility that in course of its operation an apparatus can continuously supply foam of quality chosen as optimal for the given application.
  • the apparatus comprising the foam expanding spreading device that it is suitably situated ground the surface of the liquid, and in course of its operation the foam emitted is ring-shaped, and this ring is closing more and more while extinguishing the fire, and finally covers the entire surface of the liquid. It is a further extra advantage of the apparatus comprising the foam expanding spreading device that it is suitable for letting the foam either to the surface or under the surface of the liquid.
  • the apparatus shown in figure 1 comprises a high-pressure foam source (10) which has a pressure resistant tank (12), there is a pipe stub established on the tank (12), (not indicated in the figure) so as to introduce water, foaming agent and gaseous medium.
  • a circulating pump can be connected to the appropriate pipe stubs of the tank (12) in a detachable way, which can be used for dispersing the components under pressure in the tank (12).
  • the tank (12) is an installed tank, a pressure resistant pipeline (40) is connected to its outlet which is the outlet of the foam source (10) and a remote controlled main valve (42) is inserted in the pipeline (40).
  • the valve (42) may be controlled by a sensor (49) situated in a storage tank (1) with the help of an appropriate control unit (50).
  • the end of the pipeline (40) is protruding into the inner space of the storage tank (1) containing the inflammable liquid, where it is connected to a foam expanding spreading device (60) situated inside the storage tank (1) above the surface of the liquid along the nappe of the storage tank (1).
  • the compressed foaming composition consisting of the foaming agent, water and the propellant gas is prepared in the tank (12) or the composition already prepared is filled in the tank (12). If necessary the mixing of the composition can be promoted using a mechanic mixer and the circulating pump. The composition is stored in this status until being used.
  • the foaming composition is let into the foam expanding spreading device (60) through the pipeline (40) by opening the valve (42), and the foaming composition is expanding when leaving the device (60).
  • the expanded foaming composition is the ready-to-use fire fighting foam itself, which is immediately let to the place of application.
  • the apparatus shown in figure 2 comprises a high-pressure foam source (10) having a high-pressure tank (15) containing the foam generating gas absorbed in water, a foaming agent container (17) and a mixer (30). Water and gaseous medium is let into the tank (15) mixed or separately through an appropriate pipe stub, and mixing can be promoted using a mechanic mixer and a circulating pump.
  • the outlet of the tank (15) is connected to one inlet of the proportional mixer (30) with a stop-valve (32) inserted, and the foaming agent container (17) is connected to the other inlet of the mixer (30).
  • the outlet of the mixer (30) which is the outlet of the high-pressure foam source (10) is connected to a foam expanding spreading device (60) by a pressure resistant pipeline (40).
  • This three-component composition containing the compressed propellant gas absorbed in it is let through the pipeline (40) and the ready fire fighting foam is generated via its expansion as described above.
  • the apparatus shown in figure 3 comprises a high-pressure foam source (10) having a water tank (20) connected to one inlet of an absorbing vessel (35) with a booster pump (22) inserted.
  • the outlet of a gas container (19) containing a compressed foam forming and propellant gas is connected to the other inlet of the absorbing vessel (35) with a pressure controller (37) inserted.
  • the outlet of the absorbing vessel (35) is connected to one of the inlets of a mixer (30), while the outlet of a foaming agent container (17) is connected to the other inlet of the mixer (30).
  • the outlet of the mixer (30) is connected to pressure resistant pipelines (40) leading to storage tanks containing inflammable liquids, where they are connected to foam expanding spreading devices, of which the figure shows only one foam expanding spreading device (60) situated in tank (1).
  • the pipeline (40) branches and a disconnecting valve (45, 46) is inserted in each branch of the pipeline.
  • water stored in the tank (20) is enriched with foam forming and propellant gas stored under overpressure in the container (19) in the absorbing vessel (35) and foaming agent concentrate is mixed to this compound in the mixer (30).
  • the three-component composition discharged from the mixer (30) is conveyed to the tank selected (e.g. 1) through the pipeline (40), through its branch determined by the open disconnecting valve (45, 46) of the pipeline (40), and the fire fighting foam is generated there via its expansion as described below.
  • FIG 4 shows an advantageous version of the foam expanding spreading device (60).
  • the foam expanding spreading device (60) has a tubular distributing body (63) forming a kind of ring adjusted to the shape of the storage tank to be protected, fitting close to the inner surface of the sidewall of the tank under the rim of it, and an admission opening (62) is formed on the branch neck (61) of the foam expanding spreading device (60).
  • the discharge month on the tubular distributing body (63) of the foam expanding spreading device (60) is formed as a slit (65) parallel to the axis of the tubular distributing body (63) in a way that the distance between the edges of the slit (65) is growing according to the distance from the admission opening (62).
  • the growing size of the slit is better seen in figure 5 , where a part of the foam expanding spreading device (60) is shown "straightened” for better understanding.
  • the cross section of the admission opening (62) and the slit (65) on the body (63) is conveniently the same.
  • Figure 6 shows the foam expanding spreading device (60) in section along the A-A plane indicated in figure 4 , the arrow shows the direction of outflow of the foam.
  • the foam expanding spreading device (60) producing a vertically downwards directed foam-fall can be suitably used in floating roof tanks, the foam flow is directed in the slit (63) between the floating roof and the sidewall of the tank.
  • the slit (65) of the device (60) is situated so as to produce foam-fall directed partly downwards and partly sideways, and it is particularly advantageous to apply it at tanks with open liquid surface.
  • the foam flowing in through the admission opening (62) is released through the slit (65).
  • the size of the slit (65) is growing according to the distance from the admission opening (62), so the amount of foam released at sections of the slit farther away from the admission opening (62) is the same as the amount of foam released at sections closer to the admission opening (62), as the pressure of the foam at sections of the slit closer to the admission opening is higher. Accordingly, it can be attained that the foam blanket released is of uniform thickness all along the slit (65). If it is a cylindrical tank, the surface of the liquid is covered in a concentric manner, therefore the surface is entirely covered within a short time.
  • Figure 8 shows the foam expanding spreading device (60) installed in a tank (1), the dimensions in the figure are not in proper proportion.
  • the position of the admission opening (62) can be clearly seen in the figure, and it is also clearly seen that the slit (65) acting as a discharge mouth is narrower at its end closer to the admission opening (62), and it is wider at its other end farther from the admission opening (62).
  • Figure 9 shows a further embodiment of the apparatus according to the invention. It comprises a high-pressure foam source (10) where a water tank (20) is connected to one inlet of a proportional mixer (30) with a pump (22) inserted, and a foaming agent container (17) is connected to the other inlet of the proportional mixer (30).
  • the outlet of the proportional mixer (30) is connected to one inlet of an absorbing vessel (35), and a foam generating gas container (19) is connected to the other inlet of the absorbing vessel (35) with a pressure controller (37) inserted.
  • the outlet of the absorbing vessel (35) is the outlet of the foam source (10), and it is connected to high-pressure pipeline (40) which branches at this example as well, and disconnecting valves (45, 46) are inserted in each branch.
  • the foam expanding spreading device (60) shown in figure 10 comprises a high-pressure receiving chamber (67) and a tubular distributing body (66).
  • the chamber (67) is connected to the tubular body (66) with hydraulically balanced feeding, at this embodiment it is attained via connecting members (71, 72 and 73) of choking effect between the chamber (67) and the distributing body (66), the chokes in the connecting members (71, 72 and 73) are shown in the figure in broken-out section of the connecting members (71, 72 and 73).
  • a slit (68) acting as a discharge mouth is made along the generating line of the essentially tubular distributing body (66), while the high-pressure receiving chamber (67) is connected to the pipeline (40) at the admission opening (69) of the chamber (67).
  • Figure 11 shows the foam expanding spreading device (60) shown in figure 10 , in section along the A-A plane indicated there.
  • the high pressure receiving chamber (67) and the distributing body (66) connected to it by the connecting member (73) of choking effect is clearly seen in the figure as well as the foam discharging slit (68) of the distributing body (66) along its generating line, and the admission opening (69) of the chamber (67).
  • the pressure drops at the members of choking effect, so it is the expanded ready fire fighting foam that gets into the inner space of the distributing body (66).
  • the longitudinal position of the distributing body (66) and the slit (68) ensures that the fire fighting foam is let to the place of application in the form of a blanket.
  • Fig. 12 shows an other version of the foam expanding spreading device to be used for discharging fire fighting foam onto a large surface liquid filled in storage tank.
  • the spreading device comprises a tubing (80) which extends over the centre of tank (90).
  • the tubing (80) has an admission end (81) which is able to join a pressure resistant pipeline, the other end has a discharge mouth having larges size than admission opening.
  • the discharge mouth is arranged in a position which is directed to the surface of liquid over and in the discharge mouth there are deflection plates (83) to spread foam uniformly in the whole discharge mouth.
  • an expansion tract (85) In the tubing (80) there is an expansion tract (85).

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Catching Or Destruction (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Fireproofing Substances (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Building Environments (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (13)

  1. Verfahren zum Erzeugen von Feuerlöschschaum, in dessen Verlauf eine Zusammensetzung hergestellt wird, die aus einem Schäumungsmittel, Wasser und einem gasförmigen Medium besteht, dadurch gekennzeichnet, dass die Zusammensetzung über Auflösen oder Emulgierten der Komponenten ineinander unter Überdruck hergestellt wird, wobei die in dieser Weise hergestellte Zusammensetzung unter Überdruck an der erforderlichen Stelle für den erforderlichen Zeitraum aufbewahrt wird, transportiert wird, falls erforderlich, wobei der Überdruck aufrechterhalten wird, und sie über Dekompression derselben auf den Punkt und zum Zeitpunkt der Anwendung expandiert wird.
  2. Vorrichtung zum Erzeugen von Feuerlöschschaum, dadurch gekennzeichnet, dass sie eine Hochdruck-Schaumquelle (10) mit einem Hochdrucktank (12), der eine Zusammensetzung enthält, die aus einem Schäumungsmittel, Wasser und einem gasförmigen Medium besteht, eine Schaumexpansions-Ausbreitungsvorrichtung (60) und eine druckbeständige Rohrleitung (40), die den Hochdrucktank (12) der Hochdruck-Schaumquelle (10) mit der Schaumexpansions-Ausbreitungsvorrichtung (60) verbindet, umfasst.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die druckbeständige Rohrleitung (40) mit der Öffnung des Tanks (12) verbunden ist, wobei ein Hauptventil (42) eingefügt ist.
  4. Vorrichtung zum Erzeugen von Feuerlöschschaum, dadurch gekennzeichnet, dass sie eine Hochdruck-Schaumquelle (10) mit einem druckbeständigen Hochdrucktank (15), der Wasser mit einem Schaum erzeugenden Gas, das in diesem absorbiert ist, enthält, einem Schäumungsmittelbehälter (17) und einem Mischer (30) umfasst, wobei der druckbeständige Hochdrucktank (15) mit einem Einlass des Mischers (30) verbunden ist, wobei ein Absperrventil (32) eingefügt ist, und der Schäumungsmittelbehälter (17) mit dem anderen Einlass des Mischers (30) verbunden ist, während der Auslass des Mischers (30) mit einer druckbeständigen Rohrleitung (40) direkt oder mit einem zweiten eingefügten Ventil verbunden ist.
  5. Vorrichtung zum Erzeugen von Feuerlöschschaum, dadurch gekennzeichnet, dass sie eine Hochdruck-Schaumquelle (10) mit einem Absorptionsgefäß (35) und einem Behälter (19) für ein flüssiges oder gasförmiges Schaum erzeugendes Gas, der mit einem Einlass des Absorptionsgefäßes (35) direkt oder mit einem eingefügten Druckregler (37) verbunden ist, einem Mischer (30) mit einem Schäumungsmittelbehälter (17), der mit einem seiner Einlässe verbunden ist, umfasst, wobei der andere Einlass des Absorptionsgefäßes (35) in einer Weise gestaltet ist, dass er mit einer Wasserversorgung verbunden werden kann, der Auslass des Absorptionsgefäßes (35) mit dem anderen Einlass des Mischers (30) verbunden ist und der Auslass des Mischers (30) mit einer druckbeständigen Rohrleitung (40) verbunden ist.
  6. Vorrichtung zum Erzeugen von Feuerlöschschaum, dadurch gekennzeichnet, dass sie eine Hochdruck-Schaumquelle (10) mit einem Absorptionsgefäß (35) und einem Behälter (19) für flüssiges oder gasförmiges Schaum erzeugendes Gas, der mit einem Einlass des Absorptionsgefäßes (35) direkt oder mit einem eingefügten Druckregler (37) verbunden ist, einem Mischer (30) mit einem Schäumungsmittelbehälter (17), der mit einem seiner Einlässe verbunden ist, umfasst, wobei der andere Einlass des Mischers (30) in einer Weise gestaltet ist, dass er mit einer Wasserversorgung verbunden werden kann, der Auslass des Mischers (30) mit dem anderen Einlass des Absorptionsgefäßes (35) verbunden ist und der Auslass des Absorptiensgefäßes (35) mit einer druckbeständigen Rohrleitung (40) verbunden ist.
  7. Vorrichtung nach Anspruch 5 oder Anspruch 6, dadurch gekennzeichnet, dass die druckbeständige Rohrleitung (40) abzweigt und ein Trennventil (45, 46) in jeden Zweig der Rohrleitung (40) eingesetzt ist.
  8. Vorrichtung nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass ein Ventil in die druckbeständige Rohrleitung (40) eingesetzt ist, vorzugsweise ein ferngesteuertes Ventil (42).
  9. Vorrichtung nach einem der Ansprüche 2 bis 8 mit einer Schaumexpansions-Ausbreitungsvorrichtung (60) zum Auslassen von Feuerlöschschaum auf eine große Oberfläche, dadurch gekennzeichnet, dass die Schaumexpansions-Ausbreitungsvorrichtung (60) eine Einlassöffnung (62) und eine Auslassmündung, einen röhrenförmigen Verteilungskörper (63, 66), der eine geschlossene Schleife, vorzugsweise in Torusform, bildet, umfasst, wobei die Auslassmündung, vorzugsweise ein Schlitz (65) oder ein Satz von Löchern, entlang der Länge des röhrenförmigen Verteilungskörpers (63, 66) liegt.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Auslassmündung, vorzugsweise ein Schlitz (65) oder ein Satz von Löchern, in einer Weise ausgebildet ist, dass ihre Größe pro Einheitslänge des röhrenförmigen Verteilungskörpers (63, 66) gemäß dem Abstand von der Einlassöffnung (62) anwächst.
  11. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Schaumexpansions-Ausbreitungsvorrichtung (60) ferner eine vorzugsweise röhrenförmige Hochdruck-Aufnahmekammer (67) umfasst, die eine geschlossene Schleife, vorzugsweise in Torusform, bildet, die in einer Weise angeordnet ist, dass der torusförmige Verteilungskörper (66) von der torusförmigen Hochdruck-Aufnahmekammer (67) konzentrisch umgeben ist, der Verteilungskörper (66) mit der Hochdruck-Aufnahmekammer (67) mit einer hydraulisch ausgeglichenen Zuführung verbunden ist und die Auslassmündung, vorzugsweise ein Schlitz (68) oder ein Satz von Löchern, entlang der Länge des röhrenförmigen Verteilungskörpers (66) liegt, und die Einlassöffnung (69) die Einlassöffnung der Hochdruck-Aufnahmekammer (67) ist.
  12. Vorrichtung nach einem der Ansprüche 2 bis 8 mit einer Schaumexpansions-Ausbreitungsvorrichtung zum Auslassen von Feuerlöschschaum auf eine große Oberfläche von Flüssigkeit, die in einen Speichertank gefüllt ist, dadurch gekennzeichnet, dass die Schaumexpansions-Ausbreitungsvorrichtung einen Schlauch (80) umfasst, der sich, in Gebrauch, über das Zentrum des Tanks erstreckt, wobei der Schlauch ein Einlassende (81) aufweist, das sich mit der druckbeständigen Rohrleitung (40) verbinden kann, das andere Ende eine Auslassmündung mit einer größeren Größe als die Einlassöffnung aufweist, die Auslassmündung in einer Position angeordnet ist, die auf die Oberfläche der Flüssigkeit gerichtet ist, wobei über und in der Auslassmündung Ablenkplatten vorhanden sind, um den Schaum gleichmäßig in der ganzen Auslassmündung zu verteilen.
  13. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, dass sich im Schlauch ein Expansionskanal (85) befindet.
EP99915962A 1998-04-15 1999-04-15 Verfahren und hochkapazitätseinrichtung zur schaumlöschung und vorrichtung zum aufbringen von schaum Expired - Lifetime EP1075316B1 (de)

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HU9800877 1998-04-15
HU9800877A HU225201B1 (en) 1998-04-15 1998-04-15 Method and apparatus for producing of fire foam and spraying tool for expandation of said foam
PCT/HU1999/000027 WO1999052599A1 (en) 1998-04-15 1999-04-15 Method and high-capacity apparatus for producing fire fighting foam and foam expanding spreading device

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US20110042108A1 (en) * 2008-02-15 2011-02-24 Kurt Hiebert Portable compressed gas foam system
RU2620400C2 (ru) 2012-01-27 2017-05-25 Симплекс Манюфэкчуринг Ко Авиационная система пожаротушения
HU231088B1 (hu) * 2014-05-27 2020-07-28 Regional Energy and Environment Est. Telepített, habbal működő tűzoltó berendezés folyékony tűzveszélyes anyagot tároló tartályokhoz
US11369820B2 (en) 2015-03-16 2022-06-28 Fire Rover LLC Fire monitoring and suppression system
US10512809B2 (en) 2015-03-16 2019-12-24 Fire Rover LLC Fire monitoring and suppression system
CN105344041A (zh) * 2015-11-12 2016-02-24 中国石油化工股份有限公司 一种贮压式压缩气体泡沫灭火系统
US10406390B2 (en) 2016-08-09 2019-09-10 Simplex Manufacturing Co. Aerial fire suppression system
EP3648848B1 (de) * 2017-07-06 2021-06-16 Swiss Fire Protection Research & Development AG Installierte feuerlöschausrüstung mit löschstartteileinheit
WO2019008418A1 (en) * 2017-07-06 2019-01-10 Swiss Fire Protection Research & Development Ag FIRE EXTINGUISHING EQUIPMENT INSTALLED WITH IMPROVED FEATURES
CN110507931A (zh) * 2018-05-22 2019-11-29 青岛诺诚化学品安全科技有限公司 外置式液化介质自膨胀型泡沫消防系统
CN110507930A (zh) * 2018-05-22 2019-11-29 青岛诺诚化学品安全科技有限公司 内置式液化介质自膨胀型泡沫消防系统
BR102020012129A2 (pt) * 2020-06-16 2021-12-28 Moacyr Duarte De Souza Junior Sistema e método de combate a incêndios em líquidos inflamáveis armazenados em tanques atmosféricos

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HU225201B1 (en) 2006-08-28
HRP20000779B1 (en) 2010-01-31
ATE395950T1 (de) 2008-06-15
AU762141B2 (en) 2003-06-19
SK15522000A3 (sk) 2001-04-09
WO1999052599A1 (en) 1999-10-21
PL189566B1 (pl) 2005-08-31
EP1075316A1 (de) 2001-02-14
PL343511A1 (en) 2001-08-27
HUP9800877A2 (hu) 2003-12-29
NO20005175L (no) 2000-12-05
HU9800877D0 (en) 1998-06-29
NO333796B1 (no) 2013-09-16
HRP20000779A2 (en) 2001-06-30
AU3437499A (en) 1999-11-01
ZA200006454B (en) 2001-01-31
DE69938781D1 (de) 2008-07-03
HK1034915A1 (en) 2002-01-04
CA2328972A1 (en) 1999-10-21
NO20005175D0 (no) 2000-10-13
CA2328972C (en) 2010-07-06

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