EP1142611B1 - Method for optimisation of a water spray fire extinguishing system and water spray fire extinguishing system for carrying out the method - Google Patents
Method for optimisation of a water spray fire extinguishing system and water spray fire extinguishing system for carrying out the method Download PDFInfo
- Publication number
- EP1142611B1 EP1142611B1 EP00107648A EP00107648A EP1142611B1 EP 1142611 B1 EP1142611 B1 EP 1142611B1 EP 00107648 A EP00107648 A EP 00107648A EP 00107648 A EP00107648 A EP 00107648A EP 1142611 B1 EP1142611 B1 EP 1142611B1
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- EP
- European Patent Office
- Prior art keywords
- pressure
- water
- gas
- extinguishing system
- extinguishing
- 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.)
- Expired - Lifetime
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas
Definitions
- the present invention relates to a method for optimizing a water spray extinguishing system, which is a water storage device, a pipe system connected to it having nozzles and a propellant to promote the water to the nozzles.
- extinguishing parameters with thermodynamic and fluid mechanical Methods determined.
- the first step is the development of the flue gas flow and the behavior of water drops emerging from a nozzle in this flue gas stream determined and from the relationships between drop speed, drop size and droplet evaporation become the properties necessary for the extinguishing Water drops calculated.
- the system parameters are pressure, water flow and pipe dimensions so that the desired water drops are created.
- the invention relates to a Water spray extinguishing system with a water storage device and one on this connected piping system with nozzles, with a through a propellant formed propellants to promote the water through the pipe system to the Nozzles, and with a means for reducing the pressure of the propellant.
- the extinguishing system according to the invention is characterized in that the propellant gas is in one with the water storage device Gas pressure accumulator connected via a pressure line and that the Means for reducing the pressure of the propellant gas through one in this pressure line arranged aperture is formed.
- a third preferred embodiment of the extinguishing system according to the invention is thereby characterized in that the pressure in the gas pressure accumulator is above 100 bar and preferably is 200 bar, and that the pressure in the pressure line after the orifice is less than 100 bar and is preferably between 10 and 40 bar.
- this embodiment shows a schematic representation of an extinguishing system according to the invention, in which a blowing agent for the extinguishing water pressurized gas, such as nitrogen, is used.
- a blowing agent for the extinguishing water pressurized gas such as nitrogen
- the extinguishing system consists of a line system 1 with nozzles 2 which are provided for the discharge of extinguishing water in the form of droplets or spray mist.
- the Fire-fighting water is stored in containers 3 of a water storage device 4, to which the line system 1 is connected.
- the extinguishing system also assigns a propellant Conveying the water from the storage device 4 to the nozzles 2.
- This blowing agent is a gas pressure accumulator 5 as shown.
- the gas pressure accumulator 5 consists of a number of gas high-pressure bottles 6, in which, for example Nitrogen is stored under a pressure of 200 bar.
- the high pressure gas cylinders 6 are connected via valves 7 to a pressure line 8 leading to the water storage device 4.
- the pressure line 8 opens into the individual water tanks 3 and presses when acted upon with high pressure gas the water from the container 3 into the pipe system 1 and thus to the nozzles 2.
- the pressure line 8 is acted upon by high pressure gas Opening the valves 7, which in the event of a fire by a corresponding signal from a fire alarm 9 or an extinguishing center 10 is triggered, in the latter case the extinguishing center 10 from Fire alarm 9 is activated. It goes without saying that the deletion process is triggered manually possible.
- the pressure line 8 contains an orifice 11 in the area of the gas pressure accumulator 5 through which the delivery pressure in the pressure line 8 and thus also in the line system 1 an optimal nozzle pressure is throttled, for example in the range of about 10 to 40 bar.
- the arrangement of the orifice 11 makes the critical flow phenomenon more compressible Media used by throttling to the delivery pressure during the extinguishing as possible to keep constant.
- the discharge pressure changes only slowly and is guaranteed during the relevant ones Extinguishing or flooding phase an optimal nozzle pressure.
- the through the bezel 11 caused pressure reduction leads to the fact that when opening the valves 7 in the line system 1 and no dangerous water hammer occurs at the nozzles 2.
- the pipe system 1 and the water tank 3 materials which are not high pressure quality must have.
- the orifice 11 is designed during the installation of the extinguishing system so that it touches the nozzles 2 sets the optimal pressure.
- This interpretation takes place in the following way:
- a first Step is made up of the dimensions of the space intended for the extinguishing system and a given fire determines the number and arrangement of the required nozzles 2 and Then the development of the fire gas flow, in particular the Ascent rate and temperature of the combustion gases depending on the burn rate, the burning quality, the fire area and the room height. With the help of these values the behavior of water drops after they emerge from the nozzles 2 is then described and the speed and evaporation of the drops are determined as a function of the room height and from this the optimal drop size and drop speed values for deletion certainly.
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- 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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Optimierung eines Wasserspray-Löschsystems, welches eine Wasser-Bevorratungseinrichtung, ein an diese angeschlossenes Leitungssystem mit Düsen und ein Treibmittel zur Förderung des Wassers zu den Düsen aufweist.The present invention relates to a method for optimizing a water spray extinguishing system, which is a water storage device, a pipe system connected to it having nozzles and a propellant to promote the water to the nozzles.
Herkömmliche Wasserspray-Löschsysteme, die in der Literatur auch als Water-Mist-Löschsysteme bekannt sind, versprühen aus den Düsen Wassertropfen, wobei als Treibmittel entweder ein unter Druck stehendes Gas, vorzugsweise Stickstoff, oder eine Pumpe verwendet wird. Dabei sind sowohl Hoch- als auch Niederdrucksysteme auf dem Markt verbreitet. Im Fall der Verwendung von Druckgas ist ein Gasdruckspeicher vorgesehen.Conventional water spray extinguishing systems, which in the literature are also known as water mist extinguishing systems are known to spray water droplets from the nozzles, using either propellant a pressurized gas, preferably nitrogen, or a pump is used. there Both high and low pressure systems are common on the market. In case of use A gas pressure accumulator is provided for compressed gas.
Zumindest bei Hochdrucksystemen wird von den Errichtern derartiger Löschsysteme die Variante mit dem Druckgas favorisiert, weil hier die Eigenenergie des gespannten Gases ausgenutzt wird und keine mechanisch anfälligen Pumpen erforderlich sind. Um Platz zu sparen, werden für den Gasdruckspeicher vorzugsweise Hochdruckflaschen mit einem Druck um 200 bar verwendet. Dies hat den Nachteil, dass beim Start des Lösch- oder Flutvorgangs ein massiver Wasserschlag mit Druckspitzen über 200 bar das Leitungssystem und vor allem die Wasserbehälter belasten kann. Zugleich fällt aber der Druck an den Düsen während der Flutung rasch ab, was die Löschwirkung beeinflusst.At least in the case of high-pressure systems, installers of such extinguishing systems use the variant favored with the compressed gas, because here the natural energy of the strained gas is used and no mechanically sensitive pumps are required. To save space, high-pressure cylinders with a pressure around 200 bar used. This has the disadvantage that when the extinguishing or flooding process starts, a massive one Water hammer with pressure peaks above 200 bar the pipe system and especially the water tank can strain. At the same time, however, the pressure at the nozzles drops during the flooding quickly, which affects the extinguishing effect.
Wie praktische Erfahrungen und theoretische Erkenntnisse zeigen, haben bestimmte Löschparameter, insbesondere der Düsendruck und damit gekoppelt der Tropfendurchmesser und die Tropfengeschwindigkeit, einen massgeblichen Einfluss auf die Löschwirkung. Es ist daher für die Löschwirkung wesentlich, die Zusammenhänge zwischen den Löschparametem zu kennen und die Löschparameter dann entsprechend auszuwählen.As practical experience and theoretical knowledge show, certain extinguishing parameters, in particular the nozzle pressure and coupled with it the drop diameter and the Drop speed, a significant influence on the extinguishing effect. It is therefore for the extinguishing effect essential to know the relationships between the extinguishing parameters and then select the deletion parameters accordingly.
Bei einem in der EP-A-0 661 081 beschriebenen Verfahren zur Optimierung des Löschmittelverbrauchs und/oder der Löschzeit werden die Löschparameter mit thermodynamischen und strömungsmechanischen Methoden bestimmt. Dabei wird zunächst die Entwicklung des Brandgasstroms und das Verhalten von aus einer Düse austretenden Wassertropfen in diesem Brandgasstrom ermittelt und aus den Zusammenhängen zwischen Tropfengeschwindigkeit, Tropfengrösse und Tropfenverdunstung werden die für die Löschung notwendigen Eigenschaften der Wassertropfen berechnet. Schliesslich werden die Anlagenparameter Druck, Wasserdurchsatz und Rohrleitungsdimensionen so abgestimmt, dass die gewünschten Wassertropfen entstehen. In a method described in EP-A-0 661 081 for optimizing the extinguishing agent consumption and / or the extinguishing time are the extinguishing parameters with thermodynamic and fluid mechanical Methods determined. The first step is the development of the flue gas flow and the behavior of water drops emerging from a nozzle in this flue gas stream determined and from the relationships between drop speed, drop size and droplet evaporation become the properties necessary for the extinguishing Water drops calculated. Finally, the system parameters are pressure, water flow and pipe dimensions so that the desired water drops are created.
Die Erfindung betrifft ein Wasserspray-Löschsystem mit einer Wasser-Bevorratungseinrichtung und einem an diese angeschlossenen Leitungssystem mit Düsen, mit einem durch ein Treibgas gebildeten Treibmittel zur Förderung des Wassers durch das Leitungssystem zu den Düsen, und mit einem Mittel für die Reduktion des Drucks des Treibgases. Das erfindungsgemässe Löschsystem ist dadurch gekennzeichnet, dass das Treibgas in einem mit der Wasser-Bevorratungseinrichtung über eine Druckleitung verbundenen Gasdruckspeicher gelagert und dass das Mittel für die Reduktion des Drucks des Treibgases durch eine in dieser Druckleitung angeordnete Blende gebildet ist. The invention relates to a Water spray extinguishing system with a water storage device and one on this connected piping system with nozzles, with a through a propellant formed propellants to promote the water through the pipe system to the Nozzles, and with a means for reducing the pressure of the propellant. The extinguishing system according to the invention is characterized in that the propellant gas is in one with the water storage device Gas pressure accumulator connected via a pressure line and that the Means for reducing the pressure of the propellant gas through one in this pressure line arranged aperture is formed.
Eine erste bevorzugte Ausführungsform des erfindungsgemässen Löschsystems ist dadurch gekennzeichnet, dass der Gasdruckspeicher eine Anzahl von Flaschen enthält, in denen das Treibmittel unter hohem Druck gespeichert ist, und dass die Gasflaschen über gesteuerte Ventile mit der die Blende enthaltenden Druckleitung verbunden sind.This is a first preferred embodiment of the extinguishing system according to the invention characterized in that the gas pressure accumulator contains a number of bottles in which the Propellant is stored under high pressure and that the gas cylinders are controlled by valves are connected to the pressure line containing the orifice.
Eine zweite bevorzugte Ausführungsform des erfindungsgemässen Löschsystems ist dadurch gekennzeichnet, dass sich bei geöffneten Ventilen das durch die Druckleitung stömende Treibmittel beim Passieren der Blende entspannt und den Zustand der kritischen Strömung erreicht, bei dem der Druck nach der Blende einen annähernd konstanten Wert annimmt.This is a second preferred embodiment of the extinguishing system according to the invention characterized in that when the valves are open, the blowing agent flowing through the pressure line relaxed when passing the orifice and reached the state of critical flow, at which the pressure after the orifice assumes an almost constant value.
Eine dritte bevorzugte Ausführungsform des erfindungsgemässen Löschsystems ist dadurch gekennzeichnet, dass der Druck im Gasdruckspeicher über 100 bar beträgt und vorzugsweise bei 200 bar liegt, und dass der Druck in der Druckleitung nach der Blende unter 100 bar beträgt und vorzugsweise zwischen 10 und 40 bar liegt.A third preferred embodiment of the extinguishing system according to the invention is thereby characterized in that the pressure in the gas pressure accumulator is above 100 bar and preferably is 200 bar, and that the pressure in the pressure line after the orifice is less than 100 bar and is preferably between 10 and 40 bar.
Im folgenden wird die Erfindung anhand eines in der einzigen Zeichnung dargestellten Ausführungsbeispiels näher erläutert; dieses Ausführungsbeispiel zeigt eine schematische Darstellung eines erfindungsgemässen Löschsystems, bei welchem als Treibmittel für das Löschwasser ein unter Druck stehendes Gas, beispielsweise Stickstoff, verwendet wird.In the following the invention with reference to an embodiment shown in the single drawing explained in more detail; this embodiment shows a schematic representation of an extinguishing system according to the invention, in which a blowing agent for the extinguishing water pressurized gas, such as nitrogen, is used.
Das Löschsystem besteht darstellungsgemäss aus einem Leitungssystem 1 mit Düsen 2, die zum Austritt von Löschwasser in Form von Tröpfchen oder Sprühnebel vorgesehen sind. Das Löschwasser ist in Behältern 3 einer Wasser-Bevorratungseinrichtung 4 gelagert, an welche das Leitungssystem 1 angeschlossen ist. Ausserdem weist das Löschsystem ein Treibmittel zur Förderung des Wassers von der Bevorratungseinrichtung 4 zu den Düsen 2 auf. Dieses Treibmittel ist darstellungsgemäss ein Gasdruckspeicher 5.As shown, the extinguishing system consists of a line system 1 with nozzles 2 which are provided for the discharge of extinguishing water in the form of droplets or spray mist. The Fire-fighting water is stored in containers 3 of a water storage device 4, to which the line system 1 is connected. The extinguishing system also assigns a propellant Conveying the water from the storage device 4 to the nozzles 2. This blowing agent is a gas pressure accumulator 5 as shown.
Der Gasdruckspeicher 5 besteht aus einer Anzahl von Gas-Hochdruckflaschen 6, in denen beispielsweise
Stickstoff unter einem Druck von 200 bar gelagert ist. Die Gas-Hochdruckflaschen 6
sind über Ventile 7 an eine zur Wasser-Bevorratungseinrichtung 4 führende Druckleitung 8 angeschlossen.
Die Druckleitung 8 mündet in die einzelnen Wasserbehälter 3 und presst bei Beaufschlagung
mit Hochdruckgas das Wasser aus den Behältem 3 in das Leitungssystem 1 und
damit zu den Düsen 2. Die Beaufschlagung der Druckleitung 8 mit Hochdruckgas erfolgt durch
Öffnen der Ventile 7, was im Brandfall durch ein entsprechendes Signal eines Feuermelders 9
oder einer Löschzentrale 10 ausgelöst wird, wobei im letzteren Fall die Löschzentrale 10 vom
Feuermelder 9 angesteuert ist. Selbstverständlich ist auch eine Handauslösung des Löschvorgangs
möglich.The gas pressure accumulator 5 consists of a number of gas high-pressure bottles 6, in which, for example
Nitrogen is stored under a pressure of 200 bar. The high pressure gas cylinders 6
are connected via valves 7 to a pressure line 8 leading to the water storage device 4.
The pressure line 8 opens into the individual water tanks 3 and presses when acted upon
with high pressure gas the water from the container 3 into the pipe system 1 and
thus to the nozzles 2. The pressure line 8 is acted upon by high pressure gas
Opening the valves 7, which in the event of a fire by a corresponding signal from a fire alarm 9
or an
Die Druckleitung 8 enthält im Bereich des Gasdruckspeichers 5 eine Blende 11 durch welche der Förderdruck in der Druckleitung 8 und damit auch im Leitungssystem 1 auf einen optimalen Düsendruck gedrosselt wird, der beispielsweise im Bereich von etwa 10 bis 40 bar liegt. The pressure line 8 contains an orifice 11 in the area of the gas pressure accumulator 5 through which the delivery pressure in the pressure line 8 and thus also in the line system 1 an optimal nozzle pressure is throttled, for example in the range of about 10 to 40 bar.
Durch die Anordnung der Blende 11 wird das Phänomen der kritischen Strömung kompressibler Medien durch Drosseln ausgenützt, um den Förderdruck während des Löschens möglichst konstant zu halten. Der Förderdruck ändert sich nur langsam und garantiert während der massgeblichen Löschungs- oder Flutungsphase einen optimalen Düsendruck. Die durch die Blende 11 bewirkte Druckreduktion führt dazu, dass beim Öffnen der Ventile 7 im Leitungssystem 1 und an den Düsen 2 kein gefährlicher Wasserschlag auftritt. Ausserdem können für das Leitungssystem 1 und die Wasserbehälter 3 Materialien verwendet werden, welche keine Hochdruck-Qualität aufweisen müssen.The arrangement of the orifice 11 makes the critical flow phenomenon more compressible Media used by throttling to the delivery pressure during the extinguishing as possible to keep constant. The discharge pressure changes only slowly and is guaranteed during the relevant ones Extinguishing or flooding phase an optimal nozzle pressure. The through the bezel 11 caused pressure reduction leads to the fact that when opening the valves 7 in the line system 1 and no dangerous water hammer occurs at the nozzles 2. In addition, for the pipe system 1 and the water tank 3 materials are used, which are not high pressure quality must have.
Die Blende 11 wird bei der Installation des Löschsystems so ausgelegt, dass sich an den Düsen 2 der optimale Druck einstellt. Diese Auslegung erfolgt auf folgende Weise: In einem ersten Schritt wird aus den Abmessungen des für das Löschsystem vorgesehenen Raumes und aus einem gegebenen Brand die Anzahl und Anordnung der erforderlichen Düsen 2 bestimmt und dann wird anhand eines Brandmodells die Entwicklung des Brandgasstroms, insbesondere die Aufstiegsgeschwindigkeit und Temperatur der Brandgase in Abhängigkeit von der Abbrandrate, der Brennqualität, der Brandfläche und der Raumhöhe, bestimmt. Mit Hilfe dieser Werte wird dann das Verhalten von Wassertropfen nach ihrem Austritt aus den Düsen 2 beschrieben und es werden Geschwindigkeit und Verdunstung der Tropfen als Funktion der Raumhöhe ermittelt und daraus die für die Löschung optimalen Werte der Tropfengrösse und der Tropfengeschwindigkeit bestimmt.The orifice 11 is designed during the installation of the extinguishing system so that it touches the nozzles 2 sets the optimal pressure. This interpretation takes place in the following way: In a first Step is made up of the dimensions of the space intended for the extinguishing system and a given fire determines the number and arrangement of the required nozzles 2 and Then the development of the fire gas flow, in particular the Ascent rate and temperature of the combustion gases depending on the burn rate, the burning quality, the fire area and the room height. With the help of these values the behavior of water drops after they emerge from the nozzles 2 is then described and the speed and evaporation of the drops are determined as a function of the room height and from this the optimal drop size and drop speed values for deletion certainly.
Aus den nun vorliegenden Werten der optimalen Tropfengrösse und der Tropfengeschwindigkeit wird dann in einem zweiten Schritt die Dimensionierung der Leitungen (Leitungssystem 1) und die Einstellung der Blende 11 berechnet.From the now available values of the optimal drop size and the drop speed Then, in a second step, the dimensioning of the lines (line system 1) and the setting of the aperture 11 is calculated.
Claims (4)
- Water spray extinguishing system with a water supply arrangement (4) and, connected to this, a line system (1) with nozzles (2), with a propellant formed by a propellant gas for conveying the water through the line system (1) to the nozzles (2), and with a means for reducing the pressure of the propellant gas, characterized in that the propellant gas is stored in a gas accumulator (5) connected to the water supply arrangement (4) via a pressure line (8), and in that the means for reducing the pressure of the propellant gas is formed by an orifice plate (11) arranged in this pressure line (8).
- Extinguishing system according to Claim 1, characterized in that the gas accumulator (5) comprises a number of bottles (6), in which the propellant gas is stored under high pressure, and in that the gas bottles (6) are connected to the pressure line (8) comprising' the orifice plate (11) via controlled valves (7).
- Extinguishing system according to Claim 2, characterized in that, when the valves (7) are open, the propellant gas flowing through the pressure line (8) expands when it passes through the orifice plate (1) and reaches the state of critical flow, in which the pressure after the orifice plate (11) takes on an approximately constant value.
- Extinguishing system according to one of Claims 1 to 3, characterized in that the pressure in the gas accumulator (5) is above 100 bar and is preferably 200 bar, and in that the pressure in the pressure line (8) after the orifice plate (11) is below 100 bar and is preferably between 10 and 40 bar.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50009029T DE50009029D1 (en) | 2000-04-08 | 2000-04-08 | Method for optimizing a water spray extinguishing system and water spray extinguishing system for carrying out the method |
| EP00107648A EP1142611B1 (en) | 2000-04-08 | 2000-04-08 | Method for optimisation of a water spray fire extinguishing system and water spray fire extinguishing system for carrying out the method |
| AT00107648T ATE285274T1 (en) | 2000-04-08 | 2000-04-08 | METHOD FOR OPTIMIZING A WATER SPRAY EXTINGUISHING SYSTEM AND WATER SPRAY EXTINGUISHING SYSTEM FOR IMPLEMENTING THE METHOD |
| AU24881/01A AU2488101A (en) | 2000-04-08 | 2001-03-06 | Process for optimising a water spray extinguishing system and water spray extinguishing system for carrying out the process |
| SG200101489A SG104265A1 (en) | 2000-04-08 | 2001-03-10 | Process for optimising a water spray extinguishing system and water spray extinguishing system for carrying out the process |
| CNB011178272A CN1196507C (en) | 2000-04-08 | 2001-04-07 | Method of optimizing water spraying fire fighting system and such water spraying fire fighting system using same |
| HK02101634.8A HK1040205B (en) | 2000-04-08 | 2002-03-04 | Process for optimising a water spray extinguishing system and water spray extinguishing system for carrying out the process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00107648A EP1142611B1 (en) | 2000-04-08 | 2000-04-08 | Method for optimisation of a water spray fire extinguishing system and water spray fire extinguishing system for carrying out the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1142611A1 EP1142611A1 (en) | 2001-10-10 |
| EP1142611B1 true EP1142611B1 (en) | 2004-12-22 |
Family
ID=8168409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00107648A Expired - Lifetime EP1142611B1 (en) | 2000-04-08 | 2000-04-08 | Method for optimisation of a water spray fire extinguishing system and water spray fire extinguishing system for carrying out the method |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1142611B1 (en) |
| CN (1) | CN1196507C (en) |
| AT (1) | ATE285274T1 (en) |
| AU (1) | AU2488101A (en) |
| DE (1) | DE50009029D1 (en) |
| HK (1) | HK1040205B (en) |
| SG (1) | SG104265A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7176044B2 (en) | 2002-11-25 | 2007-02-13 | Henkel Corporation | B-stageable die attach adhesives |
| FR2864905B1 (en) * | 2004-01-09 | 2006-07-14 | Airbus France | FIRE EXTINGUISHING DEVICE |
| CN101797426B (en) * | 2010-04-07 | 2012-05-09 | 苏州赛夫特消防科技有限公司 | Intelligent approaching automatic fire extinguishing system |
| US20190192892A1 (en) * | 2017-12-22 | 2019-06-27 | Carrier Corporation | Inert Gas Remote Driver Liquid Fire Suppression Systems |
| CN113198127B (en) * | 2021-05-25 | 2022-03-22 | 山西怡嘉智能消防工程有限公司 | Spraying device suitable for multiple conflagration are put out a fire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US577935A (en) * | 1897-03-02 | Horse-detacher |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB893446A (en) * | 1960-06-28 | 1962-04-11 | Specialties Dev Corp | Fire preventing system |
| FR2425252A1 (en) * | 1978-05-10 | 1979-12-07 | Rocha Antoine Da | Fire extinguishing chemical discharge system - has liquefied carbon di:oxide released into expansion chamber upstream of chemical vessel, allowing use of extinguishant sensitive to temp. |
| DE3634451A1 (en) * | 1986-10-09 | 1988-04-14 | Total Feuerschutz Gmbh | POWDER EXTINGUISHING SYSTEM FOR FIRE EXTINGUISHING VEHICLES |
| DE3634453A1 (en) * | 1986-10-09 | 1988-04-14 | Total Feuerschutz Gmbh | EXTINGUISHING SYSTEM FOR A COMBINED FIRE EXTINGUISHER |
| CH689045A5 (en) | 1993-12-23 | 1998-08-31 | Cerberus Ag | Method for optimizing the extinguishing means consumption and / or the time Loesch and apparatus for performing the method |
| GB2317824A (en) * | 1996-10-07 | 1998-04-08 | Design Limited Spa | Fire-extinguishing apparatus |
-
2000
- 2000-04-08 EP EP00107648A patent/EP1142611B1/en not_active Expired - Lifetime
- 2000-04-08 DE DE50009029T patent/DE50009029D1/en not_active Expired - Lifetime
- 2000-04-08 AT AT00107648T patent/ATE285274T1/en active
-
2001
- 2001-03-06 AU AU24881/01A patent/AU2488101A/en not_active Abandoned
- 2001-03-10 SG SG200101489A patent/SG104265A1/en unknown
- 2001-04-07 CN CNB011178272A patent/CN1196507C/en not_active Expired - Fee Related
-
2002
- 2002-03-04 HK HK02101634.8A patent/HK1040205B/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US577935A (en) * | 1897-03-02 | Horse-detacher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1196507C (en) | 2005-04-13 |
| CN1317350A (en) | 2001-10-17 |
| ATE285274T1 (en) | 2005-01-15 |
| AU2488101A (en) | 2001-10-11 |
| SG104265A1 (en) | 2004-06-21 |
| HK1040205B (en) | 2005-11-25 |
| EP1142611A1 (en) | 2001-10-10 |
| DE50009029D1 (en) | 2005-01-27 |
| HK1040205A1 (en) | 2002-05-31 |
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