NO301105B1 - Fire extinguishing system with high pressure gas as extinguishing agent - Google Patents
Fire extinguishing system with high pressure gas as extinguishing agent Download PDFInfo
- Publication number
- NO301105B1 NO301105B1 NO932095A NO932095A NO301105B1 NO 301105 B1 NO301105 B1 NO 301105B1 NO 932095 A NO932095 A NO 932095A NO 932095 A NO932095 A NO 932095A NO 301105 B1 NO301105 B1 NO 301105B1
- Authority
- NO
- Norway
- Prior art keywords
- extinguishing
- control
- lines
- extinguishing agent
- valves
- Prior art date
Links
- 230000009467 reduction Effects 0.000 claims description 9
- 230000004913 activation Effects 0.000 claims description 8
- 229920004449 Halon® Polymers 0.000 claims description 5
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims 2
- 239000012528 membrane Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 21
- 238000001514 detection method Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 241000545744 Hirudinea Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 206010033670 Panic reaction Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/44—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device only the sensor being in the danger zone
-
- 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
- A62C35/11—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone
- A62C35/13—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone with a finite supply of extinguishing material
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing Compositions (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
Oppfinnelsen vedrører et brannslukningsanlegg med en høytrykksgass, såsom Ar, N2 eller, fortrinnsvis, INERGEN, som slukkemiddel omfattende et brannmeldings- og slukningsstyringspanel. The invention relates to a fire extinguishing system with a high-pressure gas, such as Ar, N2 or, preferably, INERGEN, as extinguishing agent comprising a fire notification and extinguishing control panel.
Slike brannslukningsanlegg anvendes særlig for be-skyttelse av omgivelser og materiell i EDB-installasjoner, koplings- og kontrollsentra og lignende risikofylte om-råder. Disse brannslukningssystemer består i det vesent-lige av et brannpåvisningssystem, et slukningsstyresystem og et slukkemiddelreservoar i form av én eller flere høy-trykks syl indre, et rørverk med dyser for utmating av slukkemidlet, signalutstyr, en oppsamlende hovedledning som forbinder de enkelte høytrykkssylindre for tilkopling til slukningsledningen, og en hurtig aksjonsventil på hver av høytrykkssylindrene for å frigjøre slukkemidlet. Such fire extinguishing systems are used in particular for the protection of surroundings and material in EDB installations, switching and control centers and similar risky areas. These fire extinguishing systems essentially consist of a fire detection system, an extinguishing control system and an extinguishing agent reservoir in the form of one or more high-pressure cylinders, a piping system with nozzles for dispensing the extinguishing agent, signaling equipment, a collecting main line that connects the individual high-pressure cylinders for connection to the extinguishing line, and a quick action valve on each of the high pressure cylinders to release the extinguishing agent.
For gassbaserte slukningssystemer hvori det gass-formede slukkemiddel lagres som en væske under trykk, som når det gjelder høytrykks C02 eller Halon, foreligger det fare for at det under faseovergangen fra flytende til gassformet tilstand ved dysene vil bli tatt så meget varme fra omgivelsene at en temperaturreduksjon vil følge umiddelbart deretter. Vanndampen i luften vil kondensere til dannelse av mikrofine dråper. For gas-based extinguishing systems in which the gaseous extinguishing agent is stored as a liquid under pressure, as in the case of high-pressure C02 or Halon, there is a danger that during the phase transition from liquid to gaseous state at the nozzles, so much heat will be taken from the surroundings that a temperature reduction will follow immediately thereafter. The water vapor in the air will condense to form microfine droplets.
Utfelling av disse dråper på kretskortene og elek-troniske komponenter kan føre til skade som et resultat av absorpsjon av bruddstykker av loddemiddel, syre og alkaliske gasser, som lang tid etter utstrømningen, gir opphav til alvorlige feil og etterfølgende skade, hvis årsak er vanskelig å fastslå. Precipitation of these droplets on the circuit boards and electronic components can cause damage as a result of the absorption of fragments of solder, acid and alkaline gases, which long after the outflow, give rise to serious errors and subsequent damage, the cause of which is difficult to determine determine.
Særlig når hurtigåpningsventilen aktiveres av et brannpåvisnings- og slukningsstyrepanel med tidligvarsels-teknologi, kan feilaktig eller ukorrekt utløsning av slike slukningssystemer ikke unngås fullstendig. Den intensive reduksjon i siktbarhet knyttet til forstøvning i omgivelsene i forbindelse med den høye utmatingslyd kan føre til panikkreaksjoner hos personer som er tilstede i det beskyttede rom. Dette gjelder spesielt Halonbrannslukningsanlegg hvor utstrømning kan opptre uten varsel, ettersom slukkemidlet i konsentrasjoner som er i stand til å slukke en brann, ikke er farlig giftig i korte eksponer-ingsperioder . Especially when the quick-opening valve is activated by a fire detection and extinguishing control panel with early warning technology, erroneous or incorrect triggering of such extinguishing systems cannot be completely avoided. The intensive reduction in visibility associated with atomization in the surroundings in connection with the loud output sound can lead to panic reactions in people present in the protected space. This particularly applies to Halon fire extinguishing systems where outflows can occur without warning, as the extinguishing agent in concentrations capable of extinguishing a fire is not dangerously toxic for short periods of exposure.
Ettersom slukkemidlet Halon er blitt fastslått å være skadelig for ozonlaget, er feilaktig aktivering av Halonbrannslukningsanlegg ikke akseptabelt fra et miljø-synspunkt . As the extinguishing agent Halon has been determined to be harmful to the ozone layer, incorrect activation of Halon fire extinguishing systems is not acceptable from an environmental point of view.
Formålet med oppfinnelsen er å skaffe tilveie et slukningssystem som fungerer i henhold til oksygenfor-trengningsprinsippet og som ikke bevirker en senkning av duggpunktet i det oversvømte rom ved aktivering, og ikke fører til noen skade på personer fra selve slukkemidlet eller fra virkninger som følger utstrømningen. The purpose of the invention is to provide an extinguishing system which works according to the oxygen displacement principle and which does not cause a lowering of the dew point in the flooded room upon activation, and does not lead to any damage to persons from the extinguishing agent itself or from effects that follow the outflow.
Dette formål oppnås med brannslukningsanlegget som er definert i krav 1. This purpose is achieved with the fire extinguishing system defined in requirement 1.
Slukkemidlet mates en første strekning til samle-røret og forårsaker derved en første trykkreduksjon. Slukkemidlet mates deretter fra samlerøret til angjeldende slukningssone langs enkle eller doble baner via én eller to kombinerte trykkreduserende og strømningsbegrensende anordninger til slukningssonen eller for installasjoner med flere soner via én eller to kombinerte trykk-redu-serende og strømningsbegrensende anordninger koplet i rekke foran soneventilen. The extinguishing agent is fed a first section to the collection pipe and thereby causes a first pressure reduction. The extinguishing agent is then fed from the collecting pipe to the relevant extinguishing zone along single or double paths via one or two combined pressure-reducing and flow-limiting devices to the extinguishing zone or for installations with several zones via one or two combined pressure-reducing and flow-limiting devices connected in series in front of the zone valve.
I forbindelse med idéen om den kombinerte trykkreduserende, strømningsbegrensende anordning fører an-ordningen ifølge oppfinnelsen til en trykk- og innvendig balansekontroll/-styring i overensstemmelse med en be-regnelig fremgangsmåte hvori det bevirkes styring/kontroll av slukkemiddelmengden ved anvendelse av den variable andre trykkreduserende, strømningsbegrensende anordning og dyseutmatingsfaktoren. Dyseutmatingsfaktoren er en kompli-sert variabel størrelse som kan påvirkes for både å styre utmatingen og utmatingslyden. In connection with the idea of the combined pressure-reducing, flow-limiting device, the device according to the invention leads to a pressure and internal balance control/control in accordance with a calculable method in which control/control of the amount of extinguishing agent is effected by using the variable second pressure-reducing , flow limiting device and the nozzle output factor. The nozzle output factor is a complicated variable quantity that can be influenced to control both the output and the output sound.
Som et resultat av oppfinnelsens datamaskinstyrte slukningssystem foreligger det uunngåelig i forhold mellom påkrevde slukkemiddelmengder, nødvendig oversvømmingstid og tillatt utmatingslyd. Det utgjør en vesentlig del av oppfinnelsen at de beregnede strømningshastigheter i rør-verket, avhengig av reservoartrykket i slukkemidlet i høy-trykksbeholderne ligger under en terskelverdi ved hvilken en spaltning av de enkelte gasskomponenter av slukkemidlet kan opptre. Enn videre er de beregnete slukkemiddelkonsen-tras joner slike at de fysiologisk tillatelige nedre grenser for 02 ikke kan overskrides med 10% og de tillatelige øvre grenser for C02 ikke kan overskrides med 5%. As a result of the invention's computer-controlled extinguishing system, there is inevitably a relationship between required amounts of extinguishing agent, necessary flooding time and permissible output noise. It constitutes an essential part of the invention that the calculated flow rates in the pipework, depending on the reservoir pressure in the extinguishing agent in the high-pressure containers, lie below a threshold value at which a splitting of the individual gas components of the extinguishing agent can occur. Furthermore, the calculated extinguishing agent concentrations are such that the physiologically permissible lower limits for O2 cannot be exceeded by 10% and the permissible upper limits for C02 cannot be exceeded by 5%.
En utførelsesform av oppfinnelsen vil bli nærmere beskrevet i det etterfølgende under henvisning til den medfølgende tegning. An embodiment of the invention will be described in more detail below with reference to the accompanying drawing.
Brannslukningsanlegg som arbeider med et gassformet slukkemiddel, aktiveres av en brannpåvisnings- og slukningskontrollenhet 1, hvorved slukkemidlet i gass-sylindre 2 og 3 frigjøres. I utførelseseksemplet er det anordnet en dobbeltbane-slukkemiddelledning 5 og 6, som mater slukkemiddel inn i forbindelsesledninger 7-12 med trykkreduksjonsorganer 13-18. Forbindelsesledningene går sammen i slukkemiddelledninger 19-21 med sikkerhets-ventiler 22-24 og mater inn i soneventiler 25-27 hvorfra slukkemiddelledninger 2 8-30 fører til slukkedyser som ikke er vist. Soneventilene 25-27 er tilordnet elektromekaniske utløsere 31-33 som aktiveres via styreledninger 34-36 fra brannpåvisningspanelet 1. Fire extinguishing systems that work with a gaseous extinguishing agent are activated by a fire detection and extinguishing control unit 1, whereby the extinguishing agent in gas cylinders 2 and 3 is released. In the design example, a double-path extinguishing agent line 5 and 6 is arranged, which feeds extinguishing agent into connecting lines 7-12 with pressure reduction devices 13-18. The connection lines merge into extinguishing agent lines 19-21 with safety valves 22-24 and feed into zone valves 25-27 from which extinguishing agent lines 2 8-30 lead to extinguishing nozzles that are not shown. The zone valves 25-27 are assigned to electromechanical triggers 31-33 which are activated via control lines 34-36 from the fire detection panel 1.
I den viste utførelsesform er de elektromekaniske utløsere 31-33 tilordnet styresylindre 38-40 via styreventiler 41-43. Styreledninger 44-46 som munner ut i dobbeltledninger 47-52, fører ut fra styreventilene 41-43 hvor hver av de to dobbeltledninger 47, 49 og 51 er til-knyttet mekanisk-pneumatiske åpningsanordninger 53-55 for soneventilene 25,26,27. Dessuten vil styreledninger 59-61, som er utstyrt med tilbakeslagsventiler 62-64 og munner ut i en styreledning 65 som fører til en pneumatisk utløser 66 for aktiveringssylinderen 3, i drift bli frigjort av de mekanisk-pneumatiske åpningsanordninger 53-55. En mekanisk-pneumatisk utløsning vil også bringe styrepulser til å passere fra brannpåvisningspanelet 1 til de elektromekaniske utløsere 31-33 i tilfelle av en brann. Dette bringer styreventilene 41-43 og derved sylindrene 38-40 til å åpne, slik at soneventilene 25-27 vil bli åpne via disse trykkreservoarer via de mekanisk-pneumatiske åpningsanordninger 53-55. Derved vil løftestemplene i de mekanisk-pneumatiske åpningsanordninger 53-55 i begynnelsen bli aktivert ved anvendelse av styreledningene 47,49 og 51, og dermed vil soneventilene 25-27 bli åpnet ved anvendelse av mekaniske låsopphevelsesanordninger 56-58. Først etter at de mekaniske låsopphevelsesanordninger er blitt påvirket ved anvendelse av løftestemplene i de mekanisk-pneumatiske åpningsanordninger, vil styre-trykket via styreledningene 59-65 bli utøvet på aktiver-ingssylinderens 3 pneumatiske utløser 66, hvorved sylinderen vil bli åpnet. In the embodiment shown, the electromechanical triggers 31-33 are assigned to control cylinders 38-40 via control valves 41-43. Control lines 44-46 which open into double lines 47-52, lead out from the control valves 41-43 where each of the two double lines 47, 49 and 51 is connected to mechanical-pneumatic opening devices 53-55 for the zone valves 25,26,27. In addition, control lines 59-61, which are equipped with non-return valves 62-64 and open into a control line 65 leading to a pneumatic release 66 for the activation cylinder 3, will be released in operation by the mechanical-pneumatic opening devices 53-55. A mechanical-pneumatic release will also cause control pulses to pass from the fire detection panel 1 to the electromechanical releases 31-33 in the event of a fire. This causes the control valves 41-43 and thereby the cylinders 38-40 to open, so that the zone valves 25-27 will be opened via these pressure reservoirs via the mechanical-pneumatic opening devices 53-55. Thereby, the lifting pistons in the mechanical-pneumatic opening devices 53-55 will initially be activated by using the control lines 47,49 and 51, and thus the zone valves 25-27 will be opened by using the mechanical lock lifting devices 56-58. Only after the mechanical lock release devices have been affected by the use of the lifting pistons in the mechanical-pneumatic opening devices, the control pressure via the control lines 59-65 will be exerted on the activation cylinder 3's pneumatic trigger 66, whereby the cylinder will be opened.
Det utgjør en vesentlig del av oppfinnelsen at brannpåvisningspanelet i begynnelsen bare sender ett styresignal til de elektromekaniske utløsere 31-33 gjennom én av styreledningene 34-36, slik at bare én av soneventilene 25-27, aktiveres og åpnes aktiveringssylinderen 3. Sikkerhetsventilene 22-24 er anordnet i slukkemiddelledningene 19-21 for å hindre et altfor stort overtrykk i soneventilene 25-27. For å unngå større trykkstøt, er det anordnet trykkreduksjonsorganer 13-18, i tillegg til å garantere en trykkreduksjon også garanterer strømnings-begrensning. De mekanisk-pneumatiske styreventiler 41-43, som er i og for seg kjent er via de mekanisk-pneumatiske åpningsanordninger 53-55 forsynt med en tvangskopling for pneumatisk aktivering av den pneumatiske utløser 66. Denne foranstaltning sikre at én av soneventilene 25-27 alltid åpnes først og deretter den pneumatiske utløser 66. Til-bake sl agsvent i lene 62-64 i styreledningene 59-61 danner tilbakestrømningsbarrierer for å hindre feilaktig pneumatisk utløsning av én av soneventilene 25-27. It is an essential part of the invention that the fire detection panel initially only sends one control signal to the electromechanical triggers 31-33 through one of the control lines 34-36, so that only one of the zone valves 25-27 is activated and the activation cylinder 3 is opened. The safety valves 22-24 is arranged in the extinguishing medium lines 19-21 to prevent an excessively large overpressure in the zone valves 25-27. In order to avoid major pressure surges, pressure reduction means 13-18 are arranged, which in addition to guaranteeing a pressure reduction also guarantee flow restriction. The mechanical-pneumatic control valves 41-43, which are known in and of themselves, are provided via the mechanical-pneumatic opening devices 53-55 with a forced coupling for pneumatic activation of the pneumatic trigger 66. This measure ensures that one of the zone valves 25-27 always is opened first and then the pneumatic trigger 66. Backward stroke valves in the leeches 62-64 in the control lines 59-61 form backflow barriers to prevent erroneous pneumatic triggering of one of the zone valves 25-27.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4220062A DE4220062C2 (en) | 1992-06-19 | 1992-06-19 | Fire extinguishing system with a high pressure gas as an extinguishing agent |
Publications (3)
Publication Number | Publication Date |
---|---|
NO932095D0 NO932095D0 (en) | 1993-06-09 |
NO932095L NO932095L (en) | 1993-12-20 |
NO301105B1 true NO301105B1 (en) | 1997-09-15 |
Family
ID=6461362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO932095A NO301105B1 (en) | 1992-06-19 | 1993-06-09 | Fire extinguishing system with high pressure gas as extinguishing agent |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0574663B1 (en) |
AT (1) | ATE147280T1 (en) |
DE (2) | DE4220062C2 (en) |
DK (1) | DK0574663T3 (en) |
ES (1) | ES2097385T3 (en) |
FI (1) | FI100459B (en) |
GR (1) | GR3022916T3 (en) |
IE (1) | IE930461A1 (en) |
NO (1) | NO301105B1 (en) |
SA (1) | SA93140276B1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO180033C (en) * | 1994-12-02 | 1997-02-05 | Norsk Hydro As | Method and apparatus for automatic detection of fire danger in vehicles |
DE19723589A1 (en) * | 1997-06-05 | 1998-12-10 | Total Feuerschutz Gmbh | Device for connecting the collecting pipes to the extinguishing area valves of a fire extinguishing system with high-pressure extinguishing gas filled in gas bottles |
DE10125109A1 (en) | 2001-05-23 | 2002-12-05 | Total Feuerschutz Gmbh | Method and device for controlling a gas high-pressure fire extinguishing system |
DE10232740B4 (en) * | 2002-07-19 | 2005-11-24 | Hydac Technology Gmbh | Fire extinguishing system |
GB2424184A (en) * | 2005-03-14 | 2006-09-20 | Kidde Ip Holdings Ltd | Inert gas fire suppression system |
DE102007006665A1 (en) | 2007-02-10 | 2008-08-14 | Total Walther Gmbh, Feuerschutz Und Sicherheit | Method and device for controlling a gas high pressure fire extinguishing system |
DE102009053602B4 (en) * | 2009-11-17 | 2023-01-12 | Total Walther Gmbh, Feuerschutz Und Sicherheit | Method and device for operating a fire extinguishing system |
DE102011003270A1 (en) | 2010-02-11 | 2011-08-11 | Maximilian Pohl | Gaseous fire-extinguishing agent comprises nitrogen, argon and/or carbon dioxide |
AT519754B1 (en) * | 2017-06-23 | 2018-10-15 | Accuro Sonderloeschanlagen Gmbh | Main control valve for a fire extinguishing system |
DE102017130587A1 (en) | 2017-12-19 | 2019-06-19 | Minimax Gmbh & Co. Kg | Pneumatic control unit for multi-range fire extinguishing systems, as well as multi-range fire extinguishing system with selbigem |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1434966A1 (en) * | 1962-10-13 | 1969-04-24 | Walther & Cie Ag | Automatic fire extinguishing system using deep-frozen, liquid carbon dioxide as an extinguishing agent |
DE1929794C3 (en) * | 1969-06-12 | 1976-01-08 | Linde Ag, 6200 Wiesbaden | Methods of fighting fires in rooms |
FR2451749A1 (en) * | 1979-03-21 | 1980-10-17 | Byun Dong Ju | Automatic fire extinguishing system - using heating wire to melt cord allowing inversion of chemical flasks for reaction providing quenching gas and water |
US4373588A (en) * | 1980-10-27 | 1983-02-15 | Chemetron Corporation | Fire extinguishing apparatus |
DD201108A1 (en) * | 1981-10-09 | 1983-07-06 | Guenter Lipske | AUTOMATIC FIRE LOADING SYSTEM |
FR2603193B1 (en) * | 1986-09-03 | 1989-10-27 | Lemonnier Andre | METHOD FOR CONTROLLING FIRES FROM FORESTS, COMPOSITION AND DEVICE FOR IMPLEMENTING SAME. |
SU1507432A1 (en) * | 1987-06-30 | 1989-09-15 | Московский Институт Химического Машиностроения | Method of producing variable foaming ratio foam |
JPS6458687A (en) * | 1987-08-31 | 1989-03-06 | Idemitsu Kosan Co | Method and tank for preventing boilover |
DE3915435A1 (en) * | 1989-05-11 | 1990-11-15 | Total Feuerschutz Gmbh | METHOD FOR OPERATING A FIRE EXTINGUISHING SYSTEM |
DE3923935A1 (en) * | 1989-07-19 | 1991-01-24 | Hekatron Gmbh | FIRE EXTINGUISHING SYSTEM FOR GASEOUS EXTINGUISHING MEDIA |
-
1992
- 1992-06-19 DE DE4220062A patent/DE4220062C2/en not_active Expired - Lifetime
-
1993
- 1993-04-07 AT AT93105725T patent/ATE147280T1/en not_active IP Right Cessation
- 1993-04-07 EP EP93105725A patent/EP0574663B1/en not_active Expired - Lifetime
- 1993-04-07 DE DE59305022T patent/DE59305022D1/en not_active Expired - Lifetime
- 1993-04-07 ES ES93105725T patent/ES2097385T3/en not_active Expired - Lifetime
- 1993-04-07 DK DK93105725.1T patent/DK0574663T3/en active
- 1993-06-09 NO NO932095A patent/NO301105B1/en not_active IP Right Cessation
- 1993-06-16 FI FI932765A patent/FI100459B/en active IP Right Grant
- 1993-06-18 IE IE046193A patent/IE930461A1/en not_active IP Right Cessation
- 1993-10-17 SA SA93140276A patent/SA93140276B1/en unknown
-
1997
- 1997-03-26 GR GR970400602T patent/GR3022916T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
ES2097385T3 (en) | 1997-04-01 |
EP0574663A1 (en) | 1993-12-22 |
IE930461A1 (en) | 1993-12-29 |
SA93140276B1 (en) | 2005-09-12 |
ATE147280T1 (en) | 1997-01-15 |
DE59305022D1 (en) | 1997-02-20 |
EP0574663B1 (en) | 1997-01-08 |
GR3022916T3 (en) | 1997-06-30 |
NO932095D0 (en) | 1993-06-09 |
DK0574663T3 (en) | 1997-05-12 |
FI932765A0 (en) | 1993-06-16 |
DE4220062C2 (en) | 1996-02-22 |
NO932095L (en) | 1993-12-20 |
FI100459B (en) | 1997-12-15 |
DE4220062A1 (en) | 1994-01-05 |
FI932765A (en) | 1993-12-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5992532A (en) | Wet pipe fire protection system | |
NO301105B1 (en) | Fire extinguishing system with high pressure gas as extinguishing agent | |
KR101853631B1 (en) | Automatic fire extinguishing system with multiple monitoring and selective fire extinguish | |
NO337864B1 (en) | Device for preventing and extinguishing fire | |
CN106890410A (en) | The automatic track and localization jet fire extinguishing system of ship | |
JPS62243570A (en) | Air forming chamber and maintenance system for oil tank operable remotely | |
CN106345092A (en) | Intelligent high-rise building fire-protection monitoring system | |
US11013942B2 (en) | Pressure maintenance device with automatic switchover for use in a fire protection sprinkler system, and a related method | |
CN1266211A (en) | Fire-fighting water supply monitoring system and control method | |
US11529534B2 (en) | Wet pipe fire protection sprinkler system dual air vent with vent failure failsafe feature | |
US2334826A (en) | Fire extinguishing apparatus | |
CN1761501A (en) | Sprinkler installation for railway vehicles | |
WO2004098718A1 (en) | Combined water spray fire protection system using common piping with gaseous fire protection system | |
JP3397382B2 (en) | Carbon dioxide fire extinguishing equipment | |
CN107050715A (en) | A kind of comprehensive fire early warning fire extinguishing system | |
JP2952423B2 (en) | Sprinkler fire extinguisher with multiple water tanks | |
JP2007006932A (en) | Fire-extinguishing equipment | |
JP2850295B2 (en) | Sprinkler fire extinguishing equipment | |
JP4932550B2 (en) | Sprinkler fire extinguishing equipment | |
JPH1199222A (en) | Sprinkler fire extinguishing equipment | |
KR200187817Y1 (en) | Valve for fireplug | |
Gangopadhyay et al. | Chlorine leakage from bonnet of a valve in a bullet—a case study | |
JPS6235497Y2 (en) | ||
JPH07204290A (en) | Pre-operated sprinkler fire extinguishing facility | |
JP3010503B2 (en) | Sprinkler fire extinguishing equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM1K | Lapsed by not paying the annual fees |
Free format text: LAPSED IN DECEMBER 2000 |