EP1278577B1 - Löschgerät - Google Patents
Löschgerät Download PDFInfo
- Publication number
- EP1278577B1 EP1278577B1 EP01935999A EP01935999A EP1278577B1 EP 1278577 B1 EP1278577 B1 EP 1278577B1 EP 01935999 A EP01935999 A EP 01935999A EP 01935999 A EP01935999 A EP 01935999A EP 1278577 B1 EP1278577 B1 EP 1278577B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extinguishing agent
- bursting
- membranes
- agent container
- predetermined breaking
- 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
Links
Images
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C19/00—Hand fire-extinguishers in which the extinguishing substance is expelled by an explosion; Exploding containers thrown into the fire
Definitions
- the invention relates to an extinguishing device for fighting fire and tarnishing Explosions with a compressed gas generator and an extinguishing agent container, and one that closes the extinguishing agent container to the compressed gas generator towards the convexly curved first bursting membrane and the extinguishing agent container further bursting membrane on the output side, the Have predetermined breaking points and those triggered by the gas pressure of the Swing the compressed gas generator from convex to concave according to patent application P 199 34 164.8.
- extinguishing agents usually dry powder
- extinguishing agents usually dry powder
- an extinguishing device is known, the extinguishing agent container is closed by a flat rupture disc, which relatively low overpressure of 0.1 to 1 bar opens.
- On the extinguishing agent container at least one gas pressure generator is connected, which when triggered causes a mixing of the extinguishing agent with the compressed gas and this Spray mixture into the area to be protected.
- the applicant's application P 199 34 164.8 is an extinguishing device known in which the extinguishing agent container by two spherical convex to the compressed gas generator, curved bursting membranes are closed, the are provided with an embossed predetermined breaking point. These bursting membranes dent at one point when pressurized and turn up at the other Page around. Break from convex to concave during this swing the membranes at the predetermined breaking points almost simultaneously, making it to an insufficiently high pressure build-up between the compressed gas generator and the extinguishing agent comes. This behavior affects the spray pattern negative. For an optimal spray pattern and therefore good extinguishing success To achieve this, however, the entire extinguishing agent must be expressed evenly required.
- the object of the present invention is to describe the state of the art Technique to improve that a simultaneous rupture of the bursting membranes is prevented and a further build-up of pressure between the compressed gas generator and extinguishing agent is made possible and supported.
- the particular advantage of the invention is the fact that the timing the inversion of both bursting membranes and the successive one Breaking the predetermined breaking points is optimized so that the Extinguishing media evenly and not asymmetrically deformed from the extinguisher is ejected and thus a uniform in every direction Extinguishing agent distribution is achieved.
- an extinguishing device 1 is shown in a known design, the one contains pyrotechnic gas generator 2.
- the pyrotechnic one Gas generator 2 concave bursting membranes 3 and 4 close the extinguishing agent container 5 such that the extinguishing agent 6 cannot escape.
- the Bursting membranes 3 and 4 are spherically shaped and have a membrane surface Predetermined breaking points. Bulge in the event of pressurization such bursting membranes randomly at any point or at one vulnerability due to material. It starts with a pronounced dent break up the nearest predetermined breaking point.
- the main application P 199 34 164.8 proposed the bursting membranes as shown in Fig. 2 to shape.
- the center of the bursting membrane is a flat surface educated.
- embossed predetermined breaking points 8a, 8b With the help of the central flat surface it is achieved that temperature-related volume fluctuations by means of a resilient movement of the flat surface in the direction of the main axis A of Extinguishing device 1 are compensated.
- the breaking points weakened predetermined breaking points 8a, 8b tear open.
- the predetermined breaking points 8a, 8b are different in terms of their strength. As shown in Fig. 3, the builds from Gas generator 2 released pressure within a few milliseconds. This leads to the first bursting of both bursting membranes 3, 4 at the same time. Due to the higher strength of the predetermined breaking point 8a of the first Bursting membrane 3 does not break this for the time being, while the further outlet side Bursting membrane 4 shears off at its circumference and is repelled. To the swinging through of the bursting membranes 3, 4 increases the pressure further by the compressed gas generator 2.
- the first bursting membrane 3 only breaks after another Pressure increase.
- the extinguishing agent 6 is biased by the so Pressure pushed out evenly from the extinguishing agent container 5 and not deformed on one side. Only after the extinguishing agent has escaped 6 from the extinguishing agent container 5 uses its fine atomization.
- the increased strength of the first membrane 8a can be due to a larger material thickness at the predetermined breaking point as well as through a material higher strength or toughness. It is also conceivable that through the Designing the notch the strength of the predetermined breaking point is affected.
- membranes (8a, 8b) have different material thicknesses proven to be advantageous. They also have different shapes Membranes proved to be favorable in experiments.
- the membrane was 8a spherically curved.
- the second membrane also has one in the edge area spherical curvature, but its center is designed as a flat surface. It is also conceivable that the predetermined breaking points are designed differently are.
Description
- Fig. 1
- die Bauweise eines Löschgeräts mit einem Gasdruckerzeuger und mit konkaven Membranen nach dem Stand der Technik,
- Fig. 2
- einen Schnitt durch einen Löschmittelbehälter mit zwei konvexen Berstmembranen,
- Fig. 3
- einen Schnitt durch einen Löschmittelbehälter mit einer zunächst noch unversehrten ersten Berstmembran,
- Fig. 4
- einen Löschmittelbehälter nach Fig. 3 mit einer verzögert gebrochenen ersten Berstmembran.
Claims (3)
- Löschgerät (1) zur Bekämpfung von Feuer und anlaufenden Explosionen mit einem Druckgaserzeuger (2) und einem Löschmittelbehälter (5), sowie einer den Löschmittelbehälter (5) verschließenden, zum Druckgaserzeuger (2) hin konvex gekrümmten ersten Berstmembran (3) und einer den Löschmittelbehälter (5) ausgangsseitig verschließenden weiteren Berstmembran (4), die Sollbruchstellen (8a, 8b) aufweisen und die durch den Gasdruck des ausgelösten Druckgaserzeugers (2) von konvexer nach konkaver Krümmung durchschwingen, dadurch gekennzeichnet, dass beim Durchschwingen die Festigkeit der Sollbruchstelle (8a) der ersten Berstmembran (3) höher ausgelegt ist als die Festigkeit der Sollbruchstelle (8b) der weiteren Berstmembran (4).
- Löschgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Festigkeit der Sollbruchstelle (8a) der ersten Berstmembran (3) so bemessen ist, dass nach erfolgtem Durchschwingen erst bei einer weiteren Erhöhung des Innendrucks die Brechgrenze erreicht wird.
- Löschgerät nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Löschmittelbehälter (5) zwei unterschiedlich geformte Berstmembranen (3, 4) aufweist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10021511 | 2000-05-03 | ||
DE10021511A DE10021511B4 (de) | 2000-05-03 | 2000-05-03 | Löschgerät |
PCT/DE2001/001574 WO2001083032A2 (de) | 2000-05-03 | 2001-04-26 | Löschgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1278577A2 EP1278577A2 (de) | 2003-01-29 |
EP1278577B1 true EP1278577B1 (de) | 2003-11-12 |
Family
ID=7640628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01935999A Expired - Lifetime EP1278577B1 (de) | 2000-05-03 | 2001-04-26 | Löschgerät |
Country Status (8)
Country | Link |
---|---|
US (1) | US6769492B2 (de) |
EP (1) | EP1278577B1 (de) |
AT (1) | ATE253958T1 (de) |
CZ (1) | CZ20023540A3 (de) |
DE (2) | DE10021511B4 (de) |
HU (1) | HUP0300448A2 (de) |
SK (1) | SK15442002A3 (de) |
WO (1) | WO2001083032A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005049146A1 (en) * | 2003-11-18 | 2005-06-02 | Foi Group, Inc. | Fire extinguishing device and method |
CN1961994B (zh) * | 2006-11-21 | 2010-05-19 | 郑建华 | 灭火雷 |
DE102008026449A1 (de) * | 2008-06-03 | 2009-12-10 | Steur, Anne Karin | Vorrichtung und Verfahren zum Impuls-Ausstoß von Medium |
CZ308136B6 (cs) * | 2012-07-27 | 2020-01-22 | Svatopluk Cafourek | Kryt generátoru hasicího aerosolu do výbušného prostředí |
CN107050702B (zh) * | 2017-03-10 | 2022-02-25 | 魏吴际 | 一种可重复利用的多功能小型投掷型灭火器 |
CN112316334B (zh) * | 2020-11-04 | 2022-02-15 | 中联航天(北京)科技发展有限公司 | 一种全氟己酮快速灭火装置 |
CN113090956B (zh) * | 2021-04-01 | 2022-04-12 | 大连理工大学 | 一种分区化主动防爆抑爆装置及其控制方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT53948B (de) | 1911-07-31 | 1912-06-10 | Zeiss Carl Fa | Dreilinsiges Objektivsystem aus zwei Gliedern. |
US2383048A (en) | 1941-08-02 | 1945-08-21 | Jr James C Eckert | Fire extinguisher |
US2838122A (en) * | 1954-05-13 | 1958-06-10 | Hutchinson Harold | Fire extinguishing pistols |
US4197213A (en) * | 1978-02-28 | 1980-04-08 | Talley Industries Of Arizona, Inc. | Method and apparatus for the pyrotechnic generation of multi-component gases |
FR2597757B1 (fr) | 1986-04-25 | 1990-10-05 | Thomson Csf | Perfectionnements a un extincteur a decharge rapide et a son procede de fabrication |
US5038866A (en) * | 1986-11-21 | 1991-08-13 | Santa Barbara Research Center | Powder discharge apparatus |
DE4224184C2 (de) * | 1992-07-22 | 1994-05-05 | Deugra Ges Fuer Brandschutzsys | Löschmittelbehälter |
AU2898092A (en) | 1992-09-22 | 1994-04-12 | Zahmatov, Vladimir Dmitrievich | Fire extinguishing device |
US5423384A (en) | 1993-06-24 | 1995-06-13 | Olin Corporation | Apparatus for suppressing a fire |
DE19544399C2 (de) * | 1995-11-29 | 1997-09-18 | Bayern Chemie Gmbh Flugchemie | Löschgerät zur Explosionsunterdrückung |
WO1998039064A1 (de) * | 1997-03-04 | 1998-09-11 | Nebel, Anita | Explosive feuerlöschvorrichtung |
US6006842A (en) * | 1998-07-30 | 1999-12-28 | Fike Corporation | Non-fragmenting, non-explosive actuating valve mechanism for fire suppression apparatus |
GB2350294B (en) | 1999-05-28 | 2002-10-30 | Graviner Ltd Kidde | Fire extinguishing and explosion suppression arrangements and methods |
DE19934164C2 (de) * | 1999-07-21 | 2003-12-24 | Bayern Chemie Gmbh Flugchemie | Löschgerät |
-
2000
- 2000-05-03 DE DE10021511A patent/DE10021511B4/de not_active Expired - Fee Related
-
2001
- 2001-04-26 CZ CZ20023540A patent/CZ20023540A3/cs unknown
- 2001-04-26 HU HU0300448A patent/HUP0300448A2/hu unknown
- 2001-04-26 WO PCT/DE2001/001574 patent/WO2001083032A2/de active IP Right Grant
- 2001-04-26 EP EP01935999A patent/EP1278577B1/de not_active Expired - Lifetime
- 2001-04-26 DE DE50100970T patent/DE50100970D1/de not_active Expired - Lifetime
- 2001-04-26 US US10/258,535 patent/US6769492B2/en not_active Expired - Fee Related
- 2001-04-26 AT AT01935999T patent/ATE253958T1/de not_active IP Right Cessation
- 2001-04-26 SK SK1544-2002A patent/SK15442002A3/sk unknown
Also Published As
Publication number | Publication date |
---|---|
DE10021511B4 (de) | 2004-03-18 |
DE10021511A1 (de) | 2001-11-15 |
EP1278577A2 (de) | 2003-01-29 |
SK15442002A3 (sk) | 2003-04-01 |
WO2001083032A2 (de) | 2001-11-08 |
HUP0300448A2 (en) | 2003-06-28 |
ATE253958T1 (de) | 2003-11-15 |
WO2001083032A3 (de) | 2002-04-04 |
US20030173093A1 (en) | 2003-09-18 |
CZ20023540A3 (cs) | 2003-03-12 |
DE50100970D1 (de) | 2003-12-18 |
US6769492B2 (en) | 2004-08-03 |
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