EP3352861A1 - Dispositif de mousse extinctrice permettant de générer une mousse extinctrice, et procédé de test d'un dispositif de mousse extinctrice - Google Patents

Dispositif de mousse extinctrice permettant de générer une mousse extinctrice, et procédé de test d'un dispositif de mousse extinctrice

Info

Publication number
EP3352861A1
EP3352861A1 EP15787702.8A EP15787702A EP3352861A1 EP 3352861 A1 EP3352861 A1 EP 3352861A1 EP 15787702 A EP15787702 A EP 15787702A EP 3352861 A1 EP3352861 A1 EP 3352861A1
Authority
EP
European Patent Office
Prior art keywords
fire fighting
fighting foam
line
pressure
flow meter
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15787702.8A
Other languages
German (de)
English (en)
Inventor
VAN Willem Eugène REISEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fire Fighting Systems BV
Original Assignee
Fire Fighting Systems BV
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 Fire Fighting Systems BV filed Critical Fire Fighting Systems BV
Publication of EP3352861A1 publication Critical patent/EP3352861A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment

Definitions

  • Fire-fighting foam device for generating fire-fighting foam, and a method for the testing of a fire-fighting foam device
  • the invention relates to a fire fighting foam system for generating fire fighting foam, comprising:
  • mixing means for additively mixing fire fighting foam to the fire fighting water running through the fire fighting water line
  • a first flow meter for measuring the quantity of fire fighting water running through the fire fighting water line per unit of time
  • control unit which is connected to the first flow meter.
  • a fire fighting foam system of this type is known from WO2008/118408A.
  • the fire fighting foam storage tank is connected to a proportioner pump which is controlled by the control unit and pumps more or less fire fighting foam from the fire fighting foam storage tank into the fire fighting water line in dependence on the measured flow rate of the fire fighting water.
  • a fire fighting foam system in which the fire fighting foam storage tank is formed by a bladder tank in which a bladder (balloon) is contained filled with a fire fighting foam.
  • a pressure in the bladder tank that wishes to press the fire fighting foam in the bladder outwards.
  • This pressure is built up bij means of pressure means.
  • the pressure means are formed here by a branch line which connects the fire fighting water line to the bladder tank.
  • the mixing means are provided in the fire fighting water line and have a specific resistance. A difference in pressure over the mixing means evolves at a sufficient water flow rate.
  • the pressure in the bladder tank equals the pressure upstream of the mixing means.
  • the fire fighting foam system further includes:
  • a second flow meter for measuring the quantity of fire fighting foam running through the fire fighting foam supply line per unit of time, as well as
  • control unit is also connected to the second flow meter and to the control valve, and where the control unit drives the control valve in the case of an exceeding/falling short of a preset limit value for the proportion of the values measured by the two flow meters.
  • the control valve can be connected between the fire fighting foam supply line and a return line to the fire fighting foam storage tank or may be located in the fire fighting foam supply line.
  • the flow meters, control valve and control unit preferably have an electric configuration. By measuring the quantity of fire fighting foam and fire fighting water per unit of time, the real proportion between the two and thus the foam concentrate in the fire fighting water can be computed. By adapting the flow of the fire fighting foam via the control valve in the case of a deviation of the measured and computed concentration beyond a preset tolerance range, the desired concentration can be accurately adjusted and maintained.
  • An embodiment of the fire fighting foam system according to the invention is characterized in that the fire fighting foam storage tank is formed by a bladder tank containing a bladder filled with the fire fighting foam, and a branch line is connected to the fire fighting water line upstream of the mixing means, which branch line is connected to the bladder tank for holding the fire fighting foam under pressure.
  • the second flow meter and the control valve may both be located in the fire fighting foam supply line.
  • the second flow meter and the control valve are located in the branch line.
  • the second flow meter indirectly measures the quantity of fire fighting foam flowing through the foam supply line. For that matter, this quantity equals the quantity of fire fighting water flowing into the bladder tank.
  • the fire fighting foam storage tank is formed by a pressure tank in which the fire fighting foam is held under a higher pressure by pressure means than the pressure of the fire fighting water in the fire fighting water line.
  • the pressure means may be formed by a compressor pumping air into the pressure tank or a cylinder containing gas under pressure and which is connected to the pressure tank via a pressure controller.
  • a further advantageous embodiment of the fire fighting foam system according to the invention is characterized in that the first flow meter is formed by a calibrated pressure sensor.
  • the advantageous effect of this will be clarified hereinafter in the description of an embodiment of the method according to the invention.
  • Another advantageous embodiment of the fire fighting foam system according to the invention is characterized in that the first flow meter is formed by a differential pressure gauge across an additional restriction or one that is already present.
  • a further embodiment of the fire fighting foam system according to the invention is characterized in that the fire fighting foam system further indludes a three-way valve which is located in the fire fighting foam supply line near the mixing means, as well as a return line connected to the three-way valve and a pressure control valve located in the return line.
  • the return line may be connected to the fire fighting foam storage tank or to a receiving tank.
  • the invention likewise relates to a method for testing the above-mentioned fire fighting foam system according to the invention, which is characterized in that the three-way valve is turned to a state in which the fire fighting foam supply line is connected to the return line and the pressure control valve is set such that during operation there is the same pressure in the return line as there is in the fire fighting water line downstream of the mixing means.
  • the purpose of this testing is the checking of the composition of the fire fighting foam (i.e. the concentration of the fire fighting foam in the fire fighting water). By not adding the fire fighting foam to the fire fighting water, but allowing it to return to the fire fighting foam storage tank or by receiving it, a test may be made without using fire fighting foam.
  • An embodiment of the method according to the invention is characterized in that the flow is measured by the two flow meters and the control valve is driven by the control unit in dependence on the measured values.
  • Another embodiment of the method according to the invention is characterized in that a simulation signal is applied to the first flow meter or at the first flow meter pressure is applied to the water in the fire fighting water line and subsequently the flow is measured by the second flow meter and the control valve is driven by the control unit in dependence on the measured and simulated values.
  • the first flow meter is a pressure gauge
  • the fire fighting water in the fire fighting water line can be pressurized at the first flow meter in lieu of a simulation signal being applied to the first flow meter.
  • tests may be performed without the use of fire fighting water.
  • Fig. 1 gives a diagrammatic representation of a first embodiment of the fire fighting foam system according to the invention provided with a bladder tank;
  • Fig. 2 gives a diagrammatic representation of a second embodiment of the fire fighting foam system according to the invention provided with a bladder tank and an alternative location of the control valve;
  • Fig. 3 gives a diagrammatic representation of a third embodiment of the fire fighting foam system according to the invention provided with a pressure tank;
  • Fig. 4 gives a diagrammatic representation of a fourth embodiment of the fire fighting foam system according to the invention provided with a fluid pump. Detailed description of the drawings
  • Fig. 1 gives a diagrammatic representation of the fire fighting foam system according to the invention.
  • the fire fighting foam system 1 comprises a fire fighting water line 3 in which mixing means 5 are located which are formed by a restriction with a fire fighting foam supply line 7 connected thereto which is connected to a fire fighting foam storage tank 9.
  • This fire fighting foam storage tank is formed by a bladder tank in which a bladder 11 (a balloon) is located and which contains the fire fighting foam.
  • the space in the bladder tank between the bladder and the tank wall is connected via a branch line 13 to the fire fighting water line 3 upstream of the mixing means 5.
  • This branch line 13 forms pressure means for pressurizing the fire fighting foam present in the fire fighting foam storage tank 9.
  • the fire fighting foam system 1 further includes a first electromagnetic flow meter 15 which is located in the fire fighting water line 3 upstream of the mixing means 5, for measuring the quantity of fire fighting water running through the fire fighting water line per unit of time. Furthermore, the fire fighting foam system includes a second electromagnetic flow meter 17 which is located in the fire fighting foam supply line 7, for measuring the quantity of fire fighting foam running through the fire fighting foam supply line per unit of time.
  • the fire fighting foam supply line 7 further accommodates an electrically controllable control valve 19 which can reduce the flow through the fire fighting foam supply line.
  • the fire fighting foam system further includes an electronic control unit 21 which is connected to the two flow meters 15 and 17 and drives the control valve 19 in the case of an exceeding/falling short of a preset limit value for the proportion of the values measured by the two flow meters.
  • the fire fighting foam supply line 7 further accommodates a three-way valve
  • a return line 25 in which a pressure control valve 27 is located is connected to this three-way valve.
  • the return line 23 ends in a receiving container 29 or receiving tank.
  • the pressure control valve 27 is set to such a state that during operation there is the same pressure in the return line 25 as there is in the fire fighting water line 3 downstream of the mixing means 5. Then the flow is measured by the two flow meters 15 and 17. In dependence on the measured values the control valve 19 is driven by the control unit 21. In this manner a test is made without the use of fire fighting foam.
  • the three-way valve 23 may be arranged as a manually operated valve.
  • the flow meters 15 and 17 may be formed by differential pressure gauges which are located across a restriction present in the respective line. However, the flow meters in this embodiment are formed by calibrated pressure sensors. As a result, a simulation signal can be applied to the first flow meter 15 during the test operation or the water in the fire fighting water line 3 may be pressurized at the first flow meter after which the flow may be measured by the second flow meter 17.
  • the control valve 19 is then driven by the control unit 21 in dependence on the measured and/or simulated values. In this manner not only no fire fighting foam is used during a test operation but no fire fighting water either.
  • Fig. 2 gives a diagrammatic representation of a second embodiment of the fire fighting foam system according to the invention.
  • This fire fighting foam system 31 differs from the first embodiment in that the control valve 19 and the second flow meter 17 are located in the branch line 13 in lieu of in the fire fighting foam supply line 7.
  • the quantity of fire fighting foam running through the fire fighting foam supply line is measured indirectly here by measuring the quantity of fire fighting water running into the bladder tank.
  • Fig. 3 gives a diagrammatic representation of a third embodiment of the fire fighting foam system according to the invention.
  • This fire fighting foam system 33 differs from the first embodiment in that the fire fighting foam storage tank 9 is arranged as a pressurized tank.
  • the fire fighting foam in the pressurized tank is held under a higher pressure by pressure means 35 than the pressure of the fire fighting water in the fire fighting water line 3 upstream of the mixing means 5.
  • the pressure means 35 may be formed by a compressor pumping air into the pressure tank or a cylinder in which a pressurized gas is present and which is connected to the pressurized tank via a pressure regulator.
  • the mixing means 5 in this embodiment are formed by the connection of the fire fighting foam system 7 to the fire fighting water line 3.
  • Fig. 4 gives a diagrammatic representation of a fourth embodiment of the fire fighting foam system according to the invention.
  • This fire fighting foam system 37 differs from the first embodiment in that the fire fighting foam in the fire fighting foam storage tank 9 is not held under pressure but is pumped into the fire fighting water line 3 by means of a fluid pump 39 located in the fire fighting foam supply line 7.
  • a fluid pump 39 located in the fire fighting foam supply line 7.
  • the control valve 19 is in this case not located in the fire fighting foam supply line but in a bypass line 43 branched off from the fire fighting foam supply line 7 and running back to the fire fighting foam storage tank 9.
  • In the bypass line 43 is further located a further pressure control valve 45.
  • the return line 25 connected to the three-way valve 23 does not end in a receiving container or receiving tank, but in the fire fighting foam storage tank 9.
  • the pressure control valves 27 and 45 may be arranged as manually operated valves.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

L'invention concerne un système de mousse extinctrice (1) qui comprend une conduite d'eau de lutte contre l'incendie (3) dans laquelle est présent un moyen de mélange (5) auquel est reliée une conduite d'alimentation en mousse extinctrice (7) qui est reliée à un réservoir de stockage de mousse extinctrice (9). Ce réservoir de stockage de mousse extinctrice loge un ballon (11) contenant la mousse extinctrice. Le réservoir de stockage de mousse extinctrice est relié par l'intermédiaire d'un branchement (13) à la conduite d'eau de lutte contre l'incendie (3). Le système de mousse extinctrice (1) comprend en outre un premier débitmètre électromagnétique (15) qui est situé en amont du moyen de mélange (5) dans la conduite d'eau de lutte contre l'incendie (3) et un second débitmètre électromagnétique (17) qui est situé dans la conduite d'alimentation en mousse extinctrice (7). Une vanne de régulation à commande électrique (19) est en outre située dans la conduite d'alimentation en mousse extinctrice (7), laquelle vanne permet de réduire le débit de la conduite d'alimentation en mousse extinctrice. Une unité de commande électronique (21) qui est connectée aux deux débitmètres (15) et (17) commande la vanne de régulation (19) si la proportion des valeurs mesurées par les deux débitmètres s'éloigne trop d'une valeur limite prédéfinie.
EP15787702.8A 2014-07-31 2015-07-30 Dispositif de mousse extinctrice permettant de générer une mousse extinctrice, et procédé de test d'un dispositif de mousse extinctrice Withdrawn EP3352861A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2013282A NL2013282B1 (nl) 2014-07-31 2014-07-31 Blusschuiminrichting voor het genereren van blusschuim, alsmede werkwijze voor het testen van een blusschuiminrichting.
PCT/NL2015/050557 WO2016048136A1 (fr) 2014-07-31 2015-07-30 Dispositif de mousse extinctrice permettant de générer une mousse extinctrice, et procédé de test d'un dispositif de mousse extinctrice

Publications (1)

Publication Number Publication Date
EP3352861A1 true EP3352861A1 (fr) 2018-08-01

Family

ID=54364631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15787702.8A Withdrawn EP3352861A1 (fr) 2014-07-31 2015-07-30 Dispositif de mousse extinctrice permettant de générer une mousse extinctrice, et procédé de test d'un dispositif de mousse extinctrice

Country Status (3)

Country Link
EP (1) EP3352861A1 (fr)
NL (1) NL2013282B1 (fr)
WO (1) WO2016048136A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10758759B2 (en) 2017-02-08 2020-09-01 Oshkosh Corporation Surrogate foam test system
CN107050700A (zh) * 2017-05-12 2017-08-18 广州三业科技有限公司 数字定比大流量混合装置及其测试系统和调试方法
SE541731C2 (en) * 2018-05-03 2019-12-03 Consilium Incendium Ab Firefighting foam-mixing system
CN110279973A (zh) * 2019-07-11 2019-09-27 北京中卓时代消防装备科技有限公司 一种泡沫灭火系统试验检测平台
AU2022359008A1 (en) * 2021-10-06 2024-02-08 Tyco Fire Products Lp Foam concentrate testing bypass system
CN115501522B (zh) * 2022-09-28 2023-08-15 徐工消防安全装备有限公司 泡沫比例混合器的测试装置
CN115738139A (zh) * 2022-11-17 2023-03-07 徐工消防安全装备有限公司 泡沫系统、泡沫消防车和泡沫系统的控制方法
CN115920292B (zh) * 2022-12-05 2024-02-06 徐工消防安全装备有限公司 一种泡沫比例标定试验系统

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DE3038334A1 (de) * 1980-10-10 1982-10-21 Albert Ziegler Gmbh & Co Kg, 7928 Giengen Einrichtung fuer feuerloeschfahrzeuge zum zumischen eines schaum- oder filmbildenden zusatzmittels zum loeschwasserstroms
US5174383A (en) * 1988-09-08 1992-12-29 Hypro Corporation Apparatus and method for controlling the introduction of chemical foamant into water stream in fire-fighting equipment
US5823219A (en) * 1992-08-18 1998-10-20 National Foam, Inc. System and method for producing and maintaining predetermined proportionate mixtures of fluids
US7513315B2 (en) * 2001-11-20 2009-04-07 Boyle Thomas J System and method for testing foam-water fire fighting and fire suppression systems
EP1500413A1 (fr) * 2003-07-24 2005-01-26 Tony Brändle AG Wil Dispositif d'extinction de feu
US7878703B2 (en) * 2004-03-31 2011-02-01 Waterous Company Electronically controlled direct injection foam delivery system with temperature compensation
US20080236846A1 (en) * 2007-03-23 2008-10-02 Jonathan Gamble Stationary fire fighting foam system and method
EP2468391B1 (fr) * 2010-12-21 2013-08-14 Minimax GmbH & Co. KG Dispositif d'établissement du taux de mélange d'un injecteur dans une conduite d'extinction

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See also references of WO2016048136A1 *

Also Published As

Publication number Publication date
WO2016048136A1 (fr) 2016-03-31
NL2013282B1 (nl) 2016-09-21

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