WO2001054773A2 - Procede et agent d'extinction pour eteindre un feu provoque par de l'huile et/ou de la graisse - Google Patents

Procede et agent d'extinction pour eteindre un feu provoque par de l'huile et/ou de la graisse Download PDF

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Publication number
WO2001054773A2
WO2001054773A2 PCT/EP2001/000904 EP0100904W WO0154773A2 WO 2001054773 A2 WO2001054773 A2 WO 2001054773A2 EP 0100904 W EP0100904 W EP 0100904W WO 0154773 A2 WO0154773 A2 WO 0154773A2
Authority
WO
WIPO (PCT)
Prior art keywords
fat
oil
burning
fryer
fire
Prior art date
Application number
PCT/EP2001/000904
Other languages
German (de)
English (en)
Other versions
WO2001054773A3 (fr
Inventor
Nicole GÖBEL
Original Assignee
Febbex Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Febbex Ag filed Critical Febbex Ag
Priority to AU2001239232A priority Critical patent/AU2001239232A1/en
Priority to EP01913772A priority patent/EP1250173A2/fr
Publication of WO2001054773A2 publication Critical patent/WO2001054773A2/fr
Publication of WO2001054773A3 publication Critical patent/WO2001054773A3/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0028—Liquid extinguishing substances
    • A62D1/005—Dispersions; Emulsions

Definitions

  • the invention relates to a method for extinguishing a heated or superheated burning oil and / or fat according to the preamble of claim 1 and also includes an extinguishing agent to be used according to the method.
  • the invention has for its object to provide a method for extinguishing a heated or overheated and / or burning oil and / or fat and a suitable extinguishing agent with which such fires can be extinguished effectively and without so-called fat explosions with their harmful consequences.
  • Another concern of the invention is that the method and the extinguishing agent are easy to use, even without specialist knowledge in fire fighting.
  • the invention makes use of the known saponifiability of fats and oils by means of alkaline substances in the presence of water and of the fact that the substances formed float on liquid oils / fats, are non-flammable, at least flame-retardant and are surrounded by vessel or container walls Surfaces such as those typical of deep fryers and the like. are present, can form a closed separating layer shielding the access of atmospheric oxygen to the oil / fat.
  • the evaporation of the excess water of the alkaline solution leads to a cooling of the oil / fat which is advantageous for the extinguishing process.
  • An essential feature of the invention is the use of a binder for the aqueous alkaline solution, which binds the aqueous solution in such a way that there is practically no free water which could suddenly evaporate on contact with the very hot fat / oil.
  • the water is released from the binder with heating after a time delay so that it can evaporate very slowly even at high temperatures. Eruptions and fat explosions can therefore not occur.
  • the alkaline substances saponify the oils and / or fats slowly and form the separation layer described above.
  • the casing opens after being introduced and immersed so that the slow water evaporation and saponification process can begin.
  • the casing can also be opened immediately before being introduced into the fat / oil, so that the water vapor which forms under the action of heat drives the extinguishing substance out of the casing below the liquid level.
  • All animal fats and vegetable oils such as tallow, bone fat, palm oils, palm kernel oils, olive oil, coconut oil, rapeseed oil, etc.
  • an aqueous alkaline solution With, for example, sodium or potassium hydroxide solution, as specified in claim 5 as alkaline substances which can be used with good results, the originally esterified fatty acids are cleaved to form glycerol and the corresponding salts of the fatty acids.
  • the tough, floating soap mucus that has formed still has a considerable Chen water content.
  • the method according to the invention can be used practically with all animal and vegetable fats / oils in use.
  • a so-called superabsorber is preferably used as the binder in the method according to the invention, because superabsorbers have an unusually high binding capacity for water. For water this is about 1: 100 and depending on the salt content of the solution about 1:35, based on 30% sodium or potassium hydroxide solution (based on parts by weight).
  • the aqueous alkaline solution chemically and physically bound to the superabsorber releases the water only under the influence of high temperatures, so that eruptions do not occur.
  • Very good results are achieved with the superabsorbers of crosslinked, hydrogel-forming polymers, preferably with additions of materials with a large surface structure and / or capillary and / or fibrous structure.
  • the additives simplify the mixing of the alkaline solution with the powder or particulate super absorber.
  • the special superabsorbers specified in claim 3 and the additives or physically active binders listed in claim 4 are particularly well suited for use in the process according to the invention.
  • the additives or the only physically active binders have only a moderate effectiveness for the process-desired effect of slow water evaporation and also with regard to their water absorption capacity.
  • superabsorbents are known in many different compositions. All of them can be used in the process according to the invention because of their excellent water absorption capacity.
  • the extinguishing agent to be used according to the method is specified in claim 6. What is essential for the success of the extinguishing process is, in particular, the formation of the casing into which the extinguishing substance is filled.
  • the wrapping can be flexible be designed with or rigid, but it must be liquid-tight to prevent evaporation of water when not in use, even at higher temperatures. If a plastic is used as the coating material, it should melt at the oil and / or fat temperatures that occur in the event of fire fighting, in order to release the extinguishing substances for slow water evaporation with simultaneous partial saponification of the oil / fat.
  • Flexible wrappings can be made of plastic film, e.g. Polyethylene film, bag-shaped, into which the extinguishing substances are welded or glued.
  • Rigid plastic coverings can also be formed from a plastic that melts during fire fighting. According to claim 8, a rapid melting thin-walled area can be provided on the casing.
  • Rigid envelopes made of plastic or other materials resistant to alkaline solutions can, as stated in claim 9, also have a closure which is tightly closed for transport and storage and which, in the application, must be removed or opened before being introduced into the burning oil / fat.
  • the opening expediently points downward, the oil / fat heats up the contents quickly, as a result of which the released water partially evaporates while increasing the pressure in the interior of the casing and drives the extinguishing substances out of the casing.
  • the casing is rigid, it can basically have any suitable geometric shape if it is easy to fill, store and transport, and easy to handle when it is used. In general, one will choose a form in which there is a favorable filling volume / dimension ratio. Preferably come in accordance Claim 10 envelopes of spherical, bottle or canister shape into consideration.
  • the size of the envelopes and thus the amount of extinguishable substance enclosed therein can be different in adaptation to the amount of oil or fat to be extinguished, taking into account the free area size of the burning surface.
  • extinguishing agents in smaller envelopes can also be introduced into the grease / oil in a suitable number in accordance with the fire extinguishing requirements.
  • the application of the extinguishing agent according to the invention is very simple.
  • the flexible or rigidly coated extinguishing agent is simply thrown from a safe distance into the vessel or container in which the burning oil / fat is located.
  • the extinguishing agent is immersed, the casing opens as described or was opened before being thrown in, the bound water is released and slowly evaporates while the oil / fat cools down.
  • sufficiently large amounts of oil / fat saponify float to the surface of the fat / oil in a tough consistency and form the barrier layer blocking the entry of atmospheric oxygen.
  • Examples 1 to 15 are attempts to extinguish using conventional extinguishing agents and methods, while the games 16 to 25 relate to the invention.
  • the test arrangement specified below was used for carrying out the extinguishing tests in the event of oil and / or fat fires in the combination given in the examples.
  • a roaster deep fryer
  • 3.5 1 holding volume made of cast iron
  • an electronic thermometer with a measuring range from -50 ° C to 450 ° C
  • a propane gas burner with 2000 watts of power
  • a fire extinguisher from the manufacturer Gloria as a wet extinguisher with 6 1 content
  • equipped with a C0 2 propellant cartridge equipped with a stainless steel garden sprayer from the manufacturer Gloria with 10 1 content, with a maximum pressure of 6 bar and a hollow cone nozzle of 2 mm
  • a liquid container with 1000 ml content with remote control
  • polyethylene flat bag with 0 , 2 mm film thickness and dimensions of 150 x 100 mm
  • hollow spheres ⁇ polyethylene 50 and 80 mm diameter were used: a roaster (deep fryer) with 3.5 1 holding volume made of cast iron, an electronic thermometer with a measuring range from -50 ° C to 450 ° C, a propane gas burner with 2000 watts of power, a fire extinguisher
  • the combustion material was used, medium-quality fryer fat that was solid at room temperature and had a self-ignition temperature of around 300 to 320 ° C. Experiments with fresh fat did not show any noteworthy deviations.
  • the following were used as extinguishing and saponification media: drinking water, drinking water / foaming agent mixtures, sodium hydroxide solution, potassium hydroxide solution, soda, saturated soda solution, potash and mixtures with one another in aqueous solutions.
  • Example 2 solution from 100 g drinking water and 100 g sodium hydroxide solution 56%
  • Example 3 solution of 150 g of drinking water and 50 g of sodium hydroxide solution 56%
  • Example 4 solution of 50 g of drinking water and 150 g of sodium hydroxide solution 56%
  • Example 6 solution from 100 g of drinking water and 100 g of potassium hydroxide solution
  • Example 7 solution from 150 g of drinking water and 50 g of potassium hydroxide solution
  • Example 8 solution from 50 g of drinking water and 150 g of potassium hydroxide solution
  • Example 10 solution from 100 g of drinking water and 100 g of saturated soda solution
  • Example 11 solution from 150 g of drinking water and 50 g of saturated soda solution
  • Example 12 solution from 50 g of drinking water and 150 g of saturated soda solution
  • Example 13 200 g of drinking water
  • Example 14 solution from 195 g of drinking water and 5 g of multigrade foam
  • Example 15 foam from a solution of 195 g drinking water and 5 g multigrade foam
  • Example 16 10 g SAP powder, 100 g drinking water, 40 g sodium hydroxide solution 56%, 1 sachet, 1 scoop
  • Example 17 10 g SAP powder, 50 g drinking water, 140 g sodium hydroxide solution 56%, 1 sachet, 1 scoop
  • Example 18 10 g SAP powder, 100 g drinking water, 40 g sodium hydroxide solution 56%, 1 sachet, 1 scoop
  • Example 19 10 g SAP powder, 100 g drinking water, 40 g potassium hydroxide solution, 1 sachet, 1 scoop
  • Example 20 10 g SAP powder, 50 g drinking water, 140 g potassium hydroxide solution, 1 sachet, 1 scoop
  • Example 21 5 g SAP powder, 50 g drinking water, 50 g potassium hydroxide solution, 1 sachet, 1 scoop
  • Example 22 100 g SAP wet (undried, soaked), 100 g sodium hydroxide solution 56%, 1 sachet, 1 ball
  • Example 23 50 g SAP wet (undried, soaked), 50 g sodium hydroxide solution 56%, 1 sachet, 1 ball
  • the bag and the ball are melted in the burning fat and submerged under the liquid level.
  • a small portion of the fryer fat boiled over, but without spreading the fire.
  • the formation of a tough, buoyant substance has been observed. It was core soap, baking soda. - sodium soap. An extinguishing success can be observed, the great danger of a fat explosion is excluded.
  • Example 24 100 g SAP wet (undried, soaked), 100 g potassium hydroxide solution, 1 sachet, 1 scoop
  • Example 25 50 g SAP wet (undried, soaked), 50 g potassium hydroxide solution, 1 sachet, 1 scoop
  • the superabsorber used in Examples 16 to 25 was the product Sanwet IM 7000 from Casella Clariant.
  • aqueous alkaline solution leads to a partial saponification of the oil / fat with the formation of a floating, viscous and non-combustible separating layer, which stops the entry of atmospheric oxygen to the combustion material.
  • the aqueous alkaline solution is chemically and / or physically bound to a binding agent in a compact, encapsulated form, so that it is immersed in the burning oil and / or fat, that is, thrown in and out of the casing for the slow evaporation of the water Avoiding fat explosions and saponifying oil and / or fat is released.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Fats And Perfumes (AREA)

Abstract

L'invention concerne un procédé et un agent approprié pour refroidir de l'huile et/ou de la graisse chauffée ou surchauffée et/ou éteindre un feu provoqué par de l'huile et/ou de la graisse ayant pris feu, à savoir dans des situations typiques de feux provoqués par des friteuses, au moyen d'une solution alcaline aqueuse. Cette dernière entraîne une saponification partielle de l'huile et/ou de la graisse, accompagnée d'une formation d'une couche de séparation flottante, visqueuse et non inflammable, qui interrompt l'arrivée d'oxygène de l'air vers la matière en feu. L'invention est caractérisée en ce que cette solution alcaline aqueuse est introduite, c'est-à-dire injectée, dans l'huile et/ou la graisse en feu, en étant liée de manière chimique et/ou physique à un liant, sous une forme compacte enveloppée, de manière à ce qu'elle soit immergée sous l'huile et/ou la graisse, et de sorte qu'elle se libère de l'enveloppe pour permettre l'évaporation lente de l'eau, tout en évitant des explosions provoquées par la graisse et tout en permettant la saponification de l'huile et/ou de la graisse.
PCT/EP2001/000904 2000-01-28 2001-01-27 Procede et agent d'extinction pour eteindre un feu provoque par de l'huile et/ou de la graisse WO2001054773A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001239232A AU2001239232A1 (en) 2000-01-28 2001-01-27 Method and extinguishing agent for extinguishing a fire caused by oil or fat
EP01913772A EP1250173A2 (fr) 2000-01-28 2001-01-27 Procede et agent d'extinction pour eteindre un feu provoque par de l'huile et/ou de la graisse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10003793.3 2000-01-28
DE2000103793 DE10003793A1 (de) 2000-01-28 2000-01-28 Verfahren und Löschmittel zum Löschen eines Öl- und/oder Fettbrandes

Publications (2)

Publication Number Publication Date
WO2001054773A2 true WO2001054773A2 (fr) 2001-08-02
WO2001054773A3 WO2001054773A3 (fr) 2002-02-14

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PCT/EP2001/000904 WO2001054773A2 (fr) 2000-01-28 2001-01-27 Procede et agent d'extinction pour eteindre un feu provoque par de l'huile et/ou de la graisse

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EP (1) EP1250173A2 (fr)
AU (1) AU2001239232A1 (fr)
DE (1) DE10003793A1 (fr)
WO (1) WO2001054773A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109235808A (zh) * 2018-07-24 2019-01-18 安徽省万帮新型建材科技有限公司 一种保温木塑墙板
CN112439156A (zh) * 2020-11-18 2021-03-05 安徽理工大学 一种泡沫防灭火材料及其制备方法和应用

Citations (6)

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US3425939A (en) * 1964-01-31 1969-02-04 Ind Et L Agriculture Soc D Et Two-phase fire-extinguishing compositions
DE3739177C1 (de) * 1987-11-19 1989-02-02 Marx Guenther Feuerloeschmittel
US4968441A (en) * 1987-09-07 1990-11-06 Glaverbel Fire control composition
WO1991016107A1 (fr) * 1990-04-20 1991-10-31 Kaylor Joseph B Procedes et compositions d'extinction d'incendies
US5190110A (en) * 1985-05-03 1993-03-02 Bluecher Hubert Use of an aqueous swollen macromolecule-containing system as water for fire fighting
US5849210A (en) * 1995-09-11 1998-12-15 Pascente; Joseph E. Method of preventing combustion by applying an aqueous superabsorbent polymer composition

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US3463233A (en) * 1967-05-15 1969-08-26 Norris Industries Method of extinguishing deep fat fires
JPS60142869A (ja) * 1983-12-29 1985-07-29 ヤマト消火器株式会社 消火剤組成物
US4756839A (en) * 1986-03-26 1988-07-12 Curzon Jon L Fire extinguishing composition
DE3853073T2 (de) * 1988-07-11 1995-08-10 Jon L Curzon Feuerlöschmittel.
JPH03212278A (ja) * 1990-01-18 1991-09-17 Nippon Dry Chem Co Ltd 油火災の消火剤
DE4225584A1 (de) * 1991-02-05 1994-02-10 Juergen Buil Kontrollierbare und haltbare Verdickung von Wasser
DE4224537A1 (de) * 1992-07-27 1994-02-03 Henkel Kgaa Mineralische Additive zur Einstellung und/oder Regelung der Rheologie und Gelstruktur wässriger Flüssigphasen und ihre Verwendung
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US5820776A (en) * 1997-05-16 1998-10-13 Ansul, Incorporated Combination of a novel fire extinguishing composition employing a eutectic salt mixture and water and a method of using same to extinguish fires

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Publication number Priority date Publication date Assignee Title
US3425939A (en) * 1964-01-31 1969-02-04 Ind Et L Agriculture Soc D Et Two-phase fire-extinguishing compositions
US5190110A (en) * 1985-05-03 1993-03-02 Bluecher Hubert Use of an aqueous swollen macromolecule-containing system as water for fire fighting
US4968441A (en) * 1987-09-07 1990-11-06 Glaverbel Fire control composition
DE3739177C1 (de) * 1987-11-19 1989-02-02 Marx Guenther Feuerloeschmittel
WO1991016107A1 (fr) * 1990-04-20 1991-10-31 Kaylor Joseph B Procedes et compositions d'extinction d'incendies
US5849210A (en) * 1995-09-11 1998-12-15 Pascente; Joseph E. Method of preventing combustion by applying an aqueous superabsorbent polymer composition

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Also Published As

Publication number Publication date
AU2001239232A1 (en) 2001-08-07
EP1250173A2 (fr) 2002-10-23
WO2001054773A3 (fr) 2002-02-14
DE10003793A1 (de) 2001-09-06

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