EP1240923A1 - Flame trap - Google Patents

Flame trap Download PDF

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Publication number
EP1240923A1
EP1240923A1 EP02001529A EP02001529A EP1240923A1 EP 1240923 A1 EP1240923 A1 EP 1240923A1 EP 02001529 A EP02001529 A EP 02001529A EP 02001529 A EP02001529 A EP 02001529A EP 1240923 A1 EP1240923 A1 EP 1240923A1
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EP
European Patent Office
Prior art keywords
flame
arresting
spacer
elements
spacer element
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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.)
Granted
Application number
EP02001529A
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German (de)
French (fr)
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EP1240923B1 (en
Inventor
Christoph Dipl.-Ing. Leinemann
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Leinemann GmbH and Co KG
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Leinemann GmbH and Co KG
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Publication of EP1240923A1 publication Critical patent/EP1240923A1/en
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Publication of EP1240923B1 publication Critical patent/EP1240923B1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
    • A62C4/02—Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes

Definitions

  • the invention relates to a flame arrester arrangement with at least two in Flow direction of a combustible gas flame arrester elements arranged one behind the other, which have a variety of columns to wipe out one on the Have surface of a flame arresting element, and with at least one spacer between flame arresting elements by one Gap between adjacent flame arrester elements cause.
  • Flame arresters are used to protect against explosions, detonations and permanent fire Fittings with a so-called flame arrester, which propagate the flames of explosions, detonations or Continuous fire and thus flame penetration prevented. It's a lot of different ones Constructions of flame arresters are known to be essentially in the category of static dry, static wet and dynamic Flame arresters can be classified.
  • Such flame arresters can be used as close-meshed sieves, plate safety devices, Sintered metals, spherical fillings and designed as so-called tape fuses become. It is essential that the column of the flame arrester selected for securing can be kept reproducibly within very narrow tolerance ranges. Therefore, tape backups are primarily used today, which by Winding a smooth and a corrugated tape are produced.
  • the corrugated band is straight, or left or right bevelled corrugations that define the gap width. This is in the range from 0.2 to max. 1.5 mm depending on the explosion mixture.
  • flame-proof valve Explosion, detonation or Long-term fire protection devices
  • two, three or more tape lock washers as flame arrester elements, optionally in combination with a surrounding cage to increase the mechanical strength to a complete Flame arrester summarized.
  • a generic flame arrester is e.g. disclosed in EP 0 375 455 A2. It is a flame-arresting tap with a flame arrester out of four a flow direction of a combustible gas arranged one behind the other Flame arresting elements shown. Between the individual flame arrester elements narrow spaces are provided that form an expansion zone for the gas in the crevices and create a turbulent flow of the Lead gas. The spaces vverden by spacing elements between the flame arrester elements.
  • the conventional spacers are traditionally used in assembly a multi-layered flame barrier loosely between the Flame arrestors placed.
  • the spacer elements are, for example from a closed triangular or polygonal or loop-like wire ring educated.
  • the object of the invention was therefore to provide an improved generic flame arrester to accomplish.
  • the task is accomplished by the flame arrester with the characteristics of the main claim solved in that the one spacer at least at certain points is connected to the surface of an associated flame arresting element
  • the spacing elements are preferably connected at points, e.g. in the Spot welding process, so that the available for gas and liquid passage Surface of the flame arresting element is not unnecessarily reduced.
  • the spacer elements are preferably shaped so that they cover the entire Surface of the corresponding tape securing element distributes support points form, so that a deflection of the band locks prevents under pressure load becomes.
  • the conventional spacer elements offer only unevenly distributed contact surfaces, some of which are only on the outside Offer peripheral points of the flame arrester elements.
  • the spacing element can be e.g. be lattice-shaped.
  • the spacer elements can be made of wire mesh, wire mesh and / or round rods be educated.
  • the enclosure cage 3 is in two parts, so that the flame arresting elements 2a, 2b, 2c are easily assembled and can later be disassembled for replacement and cleaning.
  • the two Parts of the surrounding cage 3 are held together by a screw connection 4.
  • FIG. 2 shows a cross-sectional view of a flame arrester component with a Recognize flame arrester element 2, on the surface of which a spacer element is arranged.
  • the spacer 5 is fixed to the surface of the flame arrester element 2 preferably by means of spot welding connections 6 connected. In this way, the flame arrester component is stabilized and mechanical damage during removal or cleaning as well as a Deformation of the flame arrester component when a detonation wave strikes prevented.
  • FIG. 3 shows the flame arrester component from FIG. 2 in a top view.
  • the spacer 2 consists of a plurality of parallel ones Bars exist that are spaced apart and evenly over the entire surface of the flame arresting element 2 distributes support points for form an adjacent flame arrester component. This will cause deflection of the flame arresting element 2 when subjected to pressure, in particular when striking a detonation wave effectively prevented.
  • FIG. 4 shows an advantageous embodiment of a spacer element 2 recognize that is formed from a wire mesh. At the crossing points the wire mesh becomes the spacer 5 with the associated flame arresting element 2 spot welded, as in the cross sectional views of the Figures 5 and 6 can be seen.
  • FIG. 7 shows a top view of a flame arresting element 2 with the wire grid-shaped one Spacer 5 recognize that even on every second Cross point a spot weld 6 with the flame arrester 2 has.
  • FIG. 8 shows a flame arresting element 2 in the embodiment of a band securing element recognize in the cutout as a top view.
  • the tape securing element is made of a smooth band 7 and a corrugated one above it Band 8 formed, which are wound spirally.
  • the smooth band 7 and the corrugated band 8 are usually about 10 mm wide.
  • the corrugation in the corrugated band 8 defines the gaps.
  • the gap width SW depending on the medium for which the tape securing element is designed, is in the range from less than 0.2 mm to a maximum of 1.5 mm.
  • FIG. 9 leaves a conventional flame arrester 1 with three in the flow direction of a combustible gas flame arrester elements 2a, 2b and 2c recognize that are installed in a surrounding cage 3.
  • the spacer elements 5 are loosely between the flame arresting elements 2a, 2b and 2c are inserted and lie only unevenly on the surface of the corresponding flame arrester element 2a, 2b or 2c.
  • Figure 10 shows an embodiment of a conventional triangular Spacer 9, which is loosely inserted between the flame arresting elements 2 becomes. It can be seen from the cross-sectional representation that the spacer element 9 is formed from a round wire.
  • Figure 11 leaves another embodiment of a conventional loop-shaped Detect spacer 10, which is also loosely between the Flame barrier elements 2 is inserted and unevenly on the surface of the corresponding flame arrester element 2 rests.
  • the cross-sectional representation shows that the spacer 10 is also made of a round wire is formed and the bearing surface in cross-section unevenly on the Surface of the corresponding flame arresting element 2 is distributed.

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  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Gas Burners (AREA)
  • Thermistors And Varistors (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filtering Materials (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Building Environments (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Materials For Medical Uses (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Woven Fabrics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Control Of Combustion (AREA)

Abstract

The flame stop arrangement (1) has at least two flame stop components (2) one behind the other in the flow direction of a burnable gas and provided with a number of gaps for extinguishing a flame coming into contact with the surface of a flame filter component. At least one distance component (5) between the flame stop components is provided in order to form an intermediate space between abutting flame stop components. A distance component is firmly connected at least at points with the surface of a flame stop component. The distance component is a wire grid or wire weave.

Description

Die Erfindung betrifft eine Flammensperrenanordnung mit mindestens zwei in Strömrichtung eines brennbaren Gases hintereinander angeordneten Flammensperrelementen, die eine Vielzahl von Spalten zum Auslöschen einer auf die Oberfläche eines Flammensperrelementes auftreffende Flamme haben, und mit wenigstens einem Abstandselement zwischen Flammensperrelementen, um einen Zwischenraum zwischen aneinander angrenzenden Flammensperrelementen zu bewirken.The invention relates to a flame arrester arrangement with at least two in Flow direction of a combustible gas flame arrester elements arranged one behind the other, which have a variety of columns to wipe out one on the Have surface of a flame arresting element, and with at least one spacer between flame arresting elements by one Gap between adjacent flame arrester elements cause.

Zum Schutz gegen Explosionen, Detonationen und Dauerbrand werden flammendurchschlagssichernde Armaturen mit einer sogenannten Flammensperre eingesetzt, die die Fortpflanzung der Flammen von Explosionen, Detonationen oder Dauerbrand und somit Flammendurchschläge verhindert. Es ist eine Vielzahl unterschiedlicher Konstruktionen von Flammensperren bekannt, die im Wesentlichen in die Kategorie der statischen trockenen, statischen nassen und dynamischen Flammensperren eingeordnet werden können. Flame arresters are used to protect against explosions, detonations and permanent fire Fittings with a so-called flame arrester, which propagate the flames of explosions, detonations or Continuous fire and thus flame penetration prevented. It's a lot of different ones Constructions of flame arresters are known to be essentially in the category of static dry, static wet and dynamic Flame arresters can be classified.

Der Großteil der heutzutage eingesetzten flammendurchschlagsicheren Armaturen ist mit statisch-trockenen Flammensperren ausgerüstet. Hierbei handelt es sich um Elemente, bei denen die Erkenntnis ausgenutzt wird, dass Flammen in engen Spalten bei Einhaltung entsprechender Grenzabmessungen nicht mehr reaktionsfähig sind und somit zum Erlöschen gebracht werden. Das Auslöschen einer Flamme wird hierbei in der Regel durch einen innigen Kontakt der Flamme mit kühlenden Wänden, z.B. durch Führung der Flamme durch enge Spalte, erzielt.The majority of the flame-arresting fittings used today is equipped with static-dry flame arresters. This is what it is about are elements that take advantage of the knowledge that flames in narrow gaps are no longer reactive if the corresponding limit dimensions are observed are and thus be extinguished. The obliteration A flame is usually created by intimate contact of the flame with cooling walls, e.g. by guiding the flame through narrow gaps.

Derartige Flammensperren können als engmaschige Siebe, Plattensicherungen, Sintermetalle, Kugelschüttungen und als sogenannte Bandsicherungen ausgeführt werden. Wesentlich ist, dass die zur Sicherung gewählten Spalte der Flammensperre reproduzierbar in sehr engen Toleranzbereichen gehalten werden können. Daher werden heutzutage in erster Linie Bandsicherungen eingesetzt, die durch Aufwickeln von jeweils einem glatten und einem gewellten Band gefertigt werden. Das gewellte Band ist mit geraden oder mit links- oder rechtsgerichteten schrägen Riffelungen versehen, die die Spaltweite definieren. Diese liegt im Bereich von 0,2 bis max. 1,5 mm je nach Explosionsgemisch.Such flame arresters can be used as close-meshed sieves, plate safety devices, Sintered metals, spherical fillings and designed as so-called tape fuses become. It is essential that the column of the flame arrester selected for securing can be kept reproducibly within very narrow tolerance ranges. Therefore, tape backups are primarily used today, which by Winding a smooth and a corrugated tape are produced. The corrugated band is straight, or left or right bevelled corrugations that define the gap width. This is in the range from 0.2 to max. 1.5 mm depending on the explosion mixture.

Je nach Art der flammendurchschlagsicheren Armatur (Explosions-, Detonationsbzw. Dauerbrandsicherungen) werden zwei, drei oder mehr Bandsicherungsscheiben als Flammensperrelemente wahlweise in Kombination mit einem Umfassungskäfig zur Erhöhung der mechanischen Festigkeit zu einer kompletten Flammensperre zusammengefasst.Depending on the type of flame-proof valve (explosion, detonation or Long-term fire protection devices) are two, three or more tape lock washers as flame arrester elements, optionally in combination with a surrounding cage to increase the mechanical strength to a complete Flame arrester summarized.

Eine gattungsgemäße Flammensperre ist z.B. in der EP 0 375 455 A2 offenbart. Es ist eine flammendurchschlagsichere Armatur mit einer Flammensperre bestehend aus vier ein Strömungsrichtung eines brennbaren Gases hintereinander angeordneten Flammensperrelementen gezeigt. Zwischen den einzelnen Flammensperrelementen sind schmale Zwischenräume vorgesehen, die eine Expansionszone für das Gas in den Spalten liefern und zu einer turbulenten Strömung des Gases führen. Die Zwischenräume vverden durch Abstandselemente zwischen den Flammensperrelementen bewirkt.A generic flame arrester is e.g. disclosed in EP 0 375 455 A2. It is a flame-arresting tap with a flame arrester out of four a flow direction of a combustible gas arranged one behind the other Flame arresting elements shown. Between the individual flame arrester elements narrow spaces are provided that form an expansion zone for the gas in the crevices and create a turbulent flow of the Lead gas. The spaces vverden by spacing elements between the flame arrester elements.

Die herkömmlichen Abstandselemente werden herkömmlicherweise beim Zusammenbau einer mehrfach geschichteten Flammensperre lose zwischen die Flammensperrelemente gelegt. Die Abstandselemente sind hierbei beispielsweise aus einem geschlossenen drei- oder mehreckigen oder schlaufenähnlichen Drahtring gebildet.The conventional spacers are traditionally used in assembly a multi-layered flame barrier loosely between the Flame arrestors placed. The spacer elements are, for example from a closed triangular or polygonal or loop-like wire ring educated.

Insbesondere bei Flammensperren mit größeren Durchmessern bieten die herkömmlichen Abstandshalter nur eine unzureichende mechanische Festigkeit. Bei einem Ausbau bzw. einer Reinigung können die relativ teuren Flammensperrelemente leicht zerstört werden. Bei starken Belastungen, insbesondere bei instabilen Detonationen, werden die Flammensperrelemente bei dem Einsatz der herkömmlichen Abstandshalter deformiert, sodass der Zwischenraum zwischen aneinander angrenzenden Flammenfilterelementen reduziert wird.The conventional ones offer flame arresters with larger diameters in particular Spacers have insufficient mechanical strength. at the relatively expensive flame arrester elements can be removed or cleaned easily destroyed. With heavy loads, especially with unstable ones Detonations, the flame arresting elements become when using the conventional Spacers deformed so that the space between them adjacent flame filter elements is reduced.

Aufgabe der Erfindung war es daher, eine verbesserte gattungsgemäße Flammensperre zu schaffen.The object of the invention was therefore to provide an improved generic flame arrester to accomplish.

Die Aufgabe wird durch die Flammensperre mit den Merkmalen des Hauptanspruchs dadurch gelöst, dass das ein Abstandselement mindestens punktuell fest mit der Oberfläche eines zugeordneten Flammensperrelementes verbunden istThe task is accomplished by the flame arrester with the characteristics of the main claim solved in that the one spacer at least at certain points is connected to the surface of an associated flame arresting element

Durch die feste Verbindung eines Abstandselementes mit einem Flammensperrelement wird die mechanische Festigkeit der Flammensperrelemente wesentlich erhöht, sodass auch Flammensperrelemente mit größeren Abmessungen, z.B. bis zu 1.600 mm, ohne mechanische Beschädigungen ein- und ausgebaut, transportiert und gereinigt werden können. Through the fixed connection of a spacer with a flame arrester the mechanical strength of the flame arresting elements becomes essential increased, so that flame arrester elements with larger dimensions, e.g. to to 1,600 mm, installed and removed without mechanical damage, transported and can be cleaned.

Vorzugsweise erfolgt die Verbindung der Abstandselemente punktuell, z.B. im Punktschweißverfahren, sodass die zum Gas- und Flüssigkeitsdurchtritt verfügbare Oberfläche des Flammensperrelementes nicht unnötig verringert wird.The spacing elements are preferably connected at points, e.g. in the Spot welding process, so that the available for gas and liquid passage Surface of the flame arresting element is not unnecessarily reduced.

Die Abstandselemente sind vorzugsweise so geformt, dass sie über die gesamte Oberfläche des entsprechenden Bandsicherungselementes verteilt Auflagepunkte bilden, sodass eine Durchbiegung der Bandsicherungen bei Druckbelastung verhindert wird. Im Unterschied hierzu bieten die herkömmlichen Abstandselemente nur ungleichmäßig verteilte Auflageflächen, die zudem teilweise nur im äußeren Umfangsbereich der Flammensperrelemente Auflagepunkte bieten.The spacer elements are preferably shaped so that they cover the entire Surface of the corresponding tape securing element distributes support points form, so that a deflection of the band locks prevents under pressure load becomes. In contrast to this, the conventional spacer elements offer only unevenly distributed contact surfaces, some of which are only on the outside Offer peripheral points of the flame arrester elements.

Es ist besonders vorteilhaft, wenn die Auflagepunkte eines Abstandselementes auf der Oberfläche des entsprechenden Flammensperrelementes gleichmäßig verteilt sind. Das Abstandselement kann hierfür z.B. gitterförmig sein.It is particularly advantageous if the support points of a spacer element evenly distributed on the surface of the corresponding flame arrester element are. The spacing element can be e.g. be lattice-shaped.

Die Abstandselemente können aus Drahtgitter, Drahtgewebe und/oder aus Rundstäben gebildet sein. The spacer elements can be made of wire mesh, wire mesh and / or round rods be educated.

Die Erfindung wird nachfolgend anhand der beigefügten Zeichnungen näher beschrieben. Es zeigen:

Figur 1 -
Querschnittsansicht einer kompletten Flammensperre mit drei in Strömrichtung eines brennbaren Gases hintereinander angeordneten Flammensperrelementen und punktverschweißtem Abstandselement;
Figur 2 -
Querschnittsansicht eines Flammensperrelementes mit punktverschweißtem Abstandselement;
Figur 3 -
Draufsicht auf das Flammensperrelement aus der Figur 2;
Figur 4 -
Draufsicht auf ein Abstandselement, das aus einem Drahtgewebe gebildet ist;
Figur 5 -
Querschnittsansicht des Drahtgewebe-Abstandselementes aus der Figur 4
Figur 6 -
Querschnittsansicht eines Flammensperrelementes mit punktverschweißtem Drahtgewebe-Abstandselement;
Figur 7 -
Draufsicht auf das Flammensperrelement mit punktverschweißtem Drahtgewebe-Abstandselement aus der Figur 6;
Figur 8 -
Ausschnitt einer Draufsicht auf ein Flammensperrelement in der Ausführungsform eines Bandsicherungselementes;
Figur 9 -
Querschnittsansicht einer herkömmlichen Flammensperre mit drei in Strömungsrichtung eines brennbaren Gases hintereinander angeordneten Flammensperrelementen und ungleichmäßig ausliegenden Abstandselementen am äußeren und inneren Umfang der Flammenfilterelemente;
Figur 10 -
Draufsicht und Querschnittsansicht auf ein dreieckförmiges Abstandselement;
Figur 11 -
Draufsicht und Querschnittsansicht eines schlaufenförmigen Abstandselementes;
Figur 12 -
Querschnittsansicht einer Flammensperre mit drei in Strömungsrichtung eines brennbaren Gases hintereinander augeordneten Flammensperrelementen, die durch Druckbelastung deformiert sind.
The invention is described below with reference to the accompanying drawings. Show it:
Figure 1 -
Cross-sectional view of a complete flame arrester with three flame arrester elements arranged one behind the other in the flow direction of a combustible gas and spot-welded spacer element;
Figure 2 -
Cross-sectional view of a flame arresting element with spot welded spacer;
Figure 3 -
Top view of the flame arrester element from FIG. 2;
Figure 4 -
Top view of a spacer element which is formed from a wire mesh;
Figure 5 -
Cross-sectional view of the wire mesh spacer from FIG. 4
Figure 6 -
Cross-sectional view of a flame arrester element with spot-welded wire mesh spacer;
Figure 7 -
Top view of the flame arrester element with spot-welded wire mesh spacer from FIG. 6;
Figure 8 -
Detail of a top view of a flame arresting element in the embodiment of a band securing element;
Figure 9 -
Cross-sectional view of a conventional flame arrester with three flame arrester elements arranged one behind the other in the flow direction of a combustible gas and unevenly spacing elements on the outer and inner circumference of the flame filter elements;
Figure 10 -
Top view and cross-sectional view of a triangular spacer;
Figure 11 -
Top view and cross-sectional view of a loop-shaped spacer;
Figure 12 -
Cross-sectional view of a flame arrester with three flame arrester elements arranged one behind the other in the flow direction of a combustible gas and deformed by pressure loading.

Die Figur 1 lässt eine Flammensperre 1 mit drei in Strömungsrichtung eines brennbaren Gases hintereinander angeordneten Flammensperrelementen 2a, 2b, 2c erkennen, die in einen Umfassungskäfig 3 eingebaut sind. Der Umfassungskäfig 3 ist zweiteilig, sodass die Flammensperrelemente 2a, 2b, 2c leicht montiert und später zum Auswechseln und Reinigen demontiert werden können. Die beiden Teile des Umfassungskäfigs 3 werden durch eine Schraubverbindung 4 zusammengehalten.1 leaves a flame arrester 1 with three in the flow direction combustible gas flame arrester elements 2a, 2b arranged one behind the other, 2c recognize that are installed in a surrounding cage 3. The enclosure cage 3 is in two parts, so that the flame arresting elements 2a, 2b, 2c are easily assembled and can later be disassembled for replacement and cleaning. The two Parts of the surrounding cage 3 are held together by a screw connection 4.

Es ist erkennbar, dass jeweils zwischen zwei aneinander angrenzenden Flammensperrelementen 2a, 2b und 2b, 2c ein Zwischenraum mit Hilfe von Abstandselementen 5 sichergestellt wird.It can be seen that between two adjacent flame arresting elements 2a, 2b and 2b, 2c an intermediate space with the help of spacer elements 5 is ensured.

Wenn eine Flamme auf die in der Regel kreisförmige Oberfläche der Flammensperre auftritt, wird diese mit Hilfe einer Vielzahl von Spalten in den Flammensperrelementen 2a, 2b und 2c so stark abgekühlt, dass sie zum Erlöschen kommt. Durch die Zwischenräume wird zudem eine turbulente Strömung sichergestellt, die das Abkühlen und Auslöschen der Flamme unterstützt. If a flame on the usually circular surface of the flame arrester occurs, this is done with the help of a large number of columns in the flame arrester elements 2a, 2b and 2c cooled down so much that they went out comes. The gaps also ensure a turbulent flow, which supports the cooling and extinguishing of the flame.

Die Figur 2 lässt eine Querschnittsansicht eines Flammensperrbauteils mit einem Flammensperrelement 2 erkennen, auf dessen Oberfläche ein Abstandselement angeordnet ist. Erfindungsgemäß ist das Abstandselement 5 fest mit der Oberfläche des Flammensperrelementes 2 vorzugsweise durch Punktschweissverbindungen 6 verbunden. Auf diese Weise wird das Flammensperrbauteil stabilisiert und eine mechanische Beschädigung beim Ausbau oder der Reinigung sowie eine Deformation des Flammensperrbauteils beim Auftreffen einer Detonationswelle verhindert.FIG. 2 shows a cross-sectional view of a flame arrester component with a Recognize flame arrester element 2, on the surface of which a spacer element is arranged. According to the spacer 5 is fixed to the surface of the flame arrester element 2 preferably by means of spot welding connections 6 connected. In this way, the flame arrester component is stabilized and mechanical damage during removal or cleaning as well as a Deformation of the flame arrester component when a detonation wave strikes prevented.

Die Figur 3 lässt das Flammensperrbauteil aus der Figur 2 in der Draufsicht erkennen. Es wird deutlich, dass das Abstandselement 2 aus einer Vielzahl paralleler Stäbe besteht, die im Abstand zueinander angeordnet und gleichmäßig über die gesamte Oberfläche des Flammensperrelementes 2 verteilt Auflagepunkte für ein angrenzendes Flammensperrbauteil bilden. Hierdurch wird eine Durchbiegung des Flammensperrelementes 2 bei Druckbelastung, insbesondere beim Auftreffen einer Detonationswelle wirkungsvoll verhindert.FIG. 3 shows the flame arrester component from FIG. 2 in a top view. It is clear that the spacer 2 consists of a plurality of parallel ones Bars exist that are spaced apart and evenly over the entire surface of the flame arresting element 2 distributes support points for form an adjacent flame arrester component. This will cause deflection of the flame arresting element 2 when subjected to pressure, in particular when striking a detonation wave effectively prevented.

Die Figur 4 lässt eine vorteilhafte Ausführungsform eines Abstandselementes 2 erkennen, das aus einem Drahtgewebe gebildet ist. An den Kreuzungspunkten des Drahtgewebes wird das Abstandselement 5 mit dem zugeordneten Flammensperrelement 2 punktverschweißt, wie aus den Querschnittsansichten der Figur 5 und 6 erkennbar ist.FIG. 4 shows an advantageous embodiment of a spacer element 2 recognize that is formed from a wire mesh. At the crossing points the wire mesh becomes the spacer 5 with the associated flame arresting element 2 spot welded, as in the cross sectional views of the Figures 5 and 6 can be seen.

Die Figur 7 lässt eine Draufsicht auf ein Flammensperrelement 2 mit dem drahtgitterförmigen Abstandselement 5 erkennen, dass gleichmäßig an jedem zweiten Kreuzungspunkt eine Punktschweißverbindung 6 mit dem Flammensperrelement 2 aufweist.FIG. 7 shows a top view of a flame arresting element 2 with the wire grid-shaped one Spacer 5 recognize that even on every second Cross point a spot weld 6 with the flame arrester 2 has.

Die Figur 8 lässt ein Flammensperrelement 2 in der Ausführungsform eines Bandsicherungselementes im Ausschnitt als Draufsicht erkennen. Das Bandsicherungselement ist aus einem glatten Band 7 und einem darüberliegenden geriffelten Band 8 gebildet, die spiralförmig aufgewickelt sind. Das glatte Band 7 und das geriffelte Band 8 sind üblicherweise etwa 10 mm breit.FIG. 8 shows a flame arresting element 2 in the embodiment of a band securing element recognize in the cutout as a top view. The tape securing element is made of a smooth band 7 and a corrugated one above it Band 8 formed, which are wound spirally. The smooth band 7 and the corrugated band 8 are usually about 10 mm wide.

Die Riffelung in dem geriffelten Band 8 definiert die Spalten. Die Spaltweite SW liegt je nach Medium, für die das Bandsicherungselement konzipiert ist, im Bereich von weniger als 0,2 mm bis maximal 1,5 mm.The corrugation in the corrugated band 8 defines the gaps. The gap width SW depending on the medium for which the tape securing element is designed, is in the range from less than 0.2 mm to a maximum of 1.5 mm.

Die Figur 9 lässt eine herkömmliche Flammensperre 1 mit drei in Strömungsrichtung eines brennbaren Gases hintereinander Flammensperrelementen 2a, 2b und 2c erkennen, die in einem Umfassungskäfig 3 eingebaut sind. Im Unterschied zu der erfindungsgemäßen Flammensperre 1 sind die Abstandselemente 5 lose zwischen die Flammensperrelemente 2a, 2b und 2c eingelegt und liegen nur ungleichmäßig auf der Oberfläche des entsprechenden Flammensperrelementes 2a, 2b oder 2c auf.FIG. 9 leaves a conventional flame arrester 1 with three in the flow direction of a combustible gas flame arrester elements 2a, 2b and 2c recognize that are installed in a surrounding cage 3. In contrast to the flame arrestor 1 according to the invention, the spacer elements 5 are loosely between the flame arresting elements 2a, 2b and 2c are inserted and lie only unevenly on the surface of the corresponding flame arrester element 2a, 2b or 2c.

Die Figur 10 zeigt eine Ausführungsform eines herkömmlichen dreieckförmigen Abstandselementes 9, das lose zwischen die Flammensperrelemente 2 eingelegt wird. Aus der Querschnittsdarstellung ist erkennbar, dass das Abstandselement 9 aus einem Runddraht gebildet ist.Figure 10 shows an embodiment of a conventional triangular Spacer 9, which is loosely inserted between the flame arresting elements 2 becomes. It can be seen from the cross-sectional representation that the spacer element 9 is formed from a round wire.

Die Figur 11 lässt eine andere Ausführungsform eines herkömmlichen schlaufenförmigen Abstandselementes 10 erkennen, das ebenfalls lose zwischen die Flammensperrelemente 2 eingelegt wird und ungleichmäßig auf der Oberfläche des entsprechenden Flammensperrelementes 2 aufliegt. Die Querschnittsdarstellung lässt erkennen, dass das Abstandselement 10 ebenfalls aus einem Runddraht gebildet ist und die Auflagefläche im Querschnitt ungleichmäßig auf der Oberfläche des entsprechenden Flammensperrelementes 2 verteilt ist.Figure 11 leaves another embodiment of a conventional loop-shaped Detect spacer 10, which is also loosely between the Flame barrier elements 2 is inserted and unevenly on the surface of the corresponding flame arrester element 2 rests. The cross-sectional representation shows that the spacer 10 is also made of a round wire is formed and the bearing surface in cross-section unevenly on the Surface of the corresponding flame arresting element 2 is distributed.

Wie aus der Querschnittsdarstellung einer Flammensperre 1 unter Druckbelastung z.B. bei einer Detonation erkennbar ist, erfolgt eine Verformung der Flammensperrelemente 2a und 2b unter Druckbelastung, sodass die Zwischenräume zwischen den Flammensperrelementen 2a, 2b und 2c überbrückt werden. Hierdurch kann es zu einem Flammendurchschlag kommen. Im Unterschied zu der in der Figur 1 dargestellten Flammensperre 1 mit gleichmäßig über die gesamte Oberfläche des entsprechenden Flammensperrelementes 2 aufliegendem Abstandselement 5 ist die Durchbiegung der Flammensperrelemente 2a und 2b möglich, weil die herkömmlichen Abstandselemente 9, 10 nur teilweise eine Auflage für das entsprechende Flammensperrelement 2a, 2b und 2c bilden. Bei der Verbindung des dreieckförmigen Abstandselementes 9 aus der Figur 10 befinden sich die Auflagepunkte nachteilig sogar nur im äußeren Umfangsbereich des Flammensperrelementes 2.As from the cross-sectional representation of a flame arrester 1 under pressure e.g. if a detonation is recognizable, the flame arresting elements are deformed 2a and 2b under pressure, so that the gaps are bridged between the flame arresting elements 2a, 2b and 2c. hereby a flame breakdown can occur. Unlike the one in The flame barrier 1 shown in Figure 1 with evenly over the entire Surface of the corresponding flame arrester element 2 overlying spacer element 5 is the deflection of the flame arresting elements 2a and 2b possible because the conventional spacer elements 9, 10 only partially one Form a support for the corresponding flame arrester element 2a, 2b and 2c. at the connection of the triangular spacer 9 from Figure 10 the support points even disadvantageously only in the outer circumferential area the flame arrester element 2.

Durch die Verwendung des erfindungsgemäßen, gleichmäßig über die gesamte Oberfläche des entsprechenden Flammensperrelementes 2 aufliegenden Abstandselementes 5 wird die Stabilität des Flammensperrbauteiles erhöht und ein konstanter Zwischenraum zwischen den aneinander angrenzenden Flammensperrbauteilen auch bei Druckbelastung sichergestellt.By using the invention, evenly over the entire Surface of the corresponding flame arrester element 2 overlying spacer element 5, the stability of the flame arrester component is increased and a constant space between the adjacent flame arrester components ensured even under pressure.

Claims (14)

Flammensperrenanordnung (1) mit mindestens zwei in Strömungsrichtung eines brennbaren Gases hintereinander angeordneten Flammensperrelementen (2), die eine Vielzahl von Spalten zum Auslöschen einer auf die Oberfläche eines Flammenfilterelementes (2) auftreffende Flamme haben, und mit wenigstens einem Abstandselement (5) zwischen Flammensperrelementen (2), um einen Zwischenraum zwischen aneinander angrenzenden Flammensperrelementen (2) zu bewirken, dadurch gekennzeichnet, dass das ein Abstandselement (5) mindestens punktuell fest mit der Oberfläche eines zugeordneten Flammensperrelementes (2) verbunden ist.Flame arrestor arrangement (1) with at least two flame arresting elements (2) arranged one behind the other in the direction of flow of a combustible gas, which have a plurality of gaps for extinguishing a flame striking the surface of a flame filter element (2), and with at least one spacer element (5) between flame arresting elements ( 2), in order to create a space between adjacent flame arresting elements (2), characterized in that the one spacing element (5) is at least at certain points firmly connected to the surface of an associated flame arresting element (2). Flammensperrenanordnung (1) nach Anspruch 1, dadurch gekennzeichnet, dass das Abstandselement (5) so geformt ist, dass es über die gesamte Oberfläche des entsprechenden Flammensperrelementes (2) verteilt Auflagepunkte bilden und eine Durchbiegung der Flammensperrelemente (2) bei Druckbelastung einen erhöhten Widerstand entgegesetzt. Flame arrester arrangement (1) according to claim 1, characterized in that the spacer element (5) is shaped such that it forms support points distributed over the entire surface of the corresponding flame arrester element (2) and a deflection of the flame arrester elements (2) opposes an increased resistance under pressure load , Flammensperrenanordnung (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Auflagepunkte des Abstandselementes (5) auf der Oberfläche des entsprechenden Flammensperrelementes (2) gleichmäßig verteilt sind.Flame arrester arrangement (1) according to Claim 2, characterized in that the support points of the spacer element (5) are evenly distributed on the surface of the corresponding flame arrester element (2). Flammensperrenanordnung (1) nach Anspruch 3, dadurch gekennzeichnet, dass das Abstandselement (5) gitterförmig istFlame arrester arrangement (1) according to claim 3, characterized in that the spacer element (5) is lattice-shaped Flammensperrenanordnung (1) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das Abstandselement (5) ein Drahtgitter oder Drahtgewebe ist.Flame arrester arrangement (1) according to claim 3 or 4, characterized in that the spacer element (5) is a wire mesh or wire mesh. Flammensperrenanordnung (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Abstandselemente (5) aus Rundstäben gebildet ist.Flame arrester arrangement (1) according to one of the preceding claims, characterized in that the spacer element (5) is formed from round bars. Flammensperrenordnung (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Abstandselement (5) jeweils mit der Oberfläche eines zugeordneten Flammensperrelementes (2) punktverschweißt sind.Flame arrester arrangement (1) according to one of the preceding claims, characterized in that the spacer element (5) is spot welded to the surface of an associated flame arrester element (2). Flammensperrbauteil mit einem Flammensperrelement (2) mit einer Vielzahl von Spalten zum Auslöschen einer auf die Oberfläche des Flammensperrelementes (2) auftreffenden Flamme, gekennzeichnet durch ein fest mit der Oberfläche des Flammensperrelementes verbundenes Abstandselement (5).Flame arresting component with a flame arresting element (2) with a plurality of gaps for extinguishing a flame striking the surface of the flame arresting element (2), characterized by a spacer element (5) firmly connected to the surface of the flame arresting element. Flammensperrbauteil nach Anspruch 8, dadurch gekennzeichnet, dass das Abstandselement (5) so geformt ist, dass es über die gesamte Oberfläche des Flammensperrelementes (2) verteilt Auflagepunkte bildet und einer Durchbiegung der Flammensperrelemente (2) bei Druckbelastung einen erhöhten Widerstand entgegensetzt. Flame arresting component according to claim 8, characterized in that the spacer element (5) is shaped such that it forms support points distributed over the entire surface of the flame arresting element (2) and opposes a deflection of the flame arresting elements (2) when there is a pressure load, an increased resistance. Flammensperrbauteil (2) nach Anspruch 9, dadurch gekennzeichnet, dass die Auflagepunkte des Abstandselementes (5) auf der Oberfläche des Flammensperrelementes (2) gleichmäßig verteilt sind.Flame arresting component (2) according to claim 9, characterized in that the support points of the spacer element (5) on the surface of the flame arresting element (2) are evenly distributed. Flammensperrbauteil nach Anspruch 10, dadurch gekennzeichnet, dass das Abstandselement (5) gitterförmig ist.Flame barrier component according to claim 10, characterized in that the spacer element (5) is lattice-shaped. Flammensperrbauteil nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass das Abstandselement (5) ein Drahtgitter oder Drahtgewebe ist.Flame barrier component according to claim 9 or 10, characterized in that the spacer element (5) is a wire mesh or wire mesh. Flammensperrbauteil (2) nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass das Abstandselement (5) aus Rundstäben gebildet ist.Flame arresting component (2) according to one of Claims 8 to 12, characterized in that the spacer element (5) is formed from round bars. Flammensperrbauteil nach einem der Ansprüche 8 bis 13, dadurch gekennzeichnet, dass das Abstandselemente (5) jeweils mit der Oberfläche des Flammensperrelementes (2) punktverschweißt sind.Flame arresting component according to one of claims 8 to 13, characterized in that the spacer elements (5) are spot welded to the surface of the flame arresting element (2).
EP02001529A 2001-03-17 2002-01-23 Flame trap Expired - Lifetime EP1240923B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10112957A DE10112957B4 (en) 2001-03-17 2001-03-17 Flame arrester arrangement
DE10112957 2001-03-17

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EP1240923A1 true EP1240923A1 (en) 2002-09-18
EP1240923B1 EP1240923B1 (en) 2006-12-06

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US (1) US6978845B2 (en)
EP (1) EP1240923B1 (en)
AT (1) ATE347402T1 (en)
BR (1) BR0200841B1 (en)
CA (1) CA2372505C (en)
CZ (1) CZ299455B6 (en)
DE (2) DE10112957B4 (en)
ES (1) ES2277965T3 (en)
HU (1) HU224488B1 (en)
NO (1) NO20021237L (en)
PL (1) PL200865B1 (en)
PT (1) PT1240923E (en)
TW (1) TW500617B (en)

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KR100918021B1 (en) 2008-09-19 2009-09-18 유니테크 주식회사 Explosive relief valve

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KR20090077128A (en) * 2008-01-10 2009-07-15 엠티에이치콘트롤밸브(주) Trap device for preventing flame of internal combustion engine
RU2484865C2 (en) * 2009-05-27 2013-06-20 Олег Савельевич Кочетов Fire prevention device of cassette type
RU2483769C2 (en) * 2009-05-27 2013-06-10 Олег Савельевич Кочетов Ceramic-metal flame arrester
CN103362608B (en) * 2013-08-06 2015-09-09 北京凯润机电设备制造有限责任公司 A kind of rail fence fire barrier and manufacture method thereof
DE102014116149A1 (en) 2014-11-06 2016-05-12 R. Stahl Schaltgeräte GmbH Flame-proofing filter of a number of layer sequences as well as arrangements of flameproof filters and their use
US9987508B2 (en) 2016-08-31 2018-06-05 Emerson Process Management Regulator Technologies Tulsa, Llc Hybrid composite flame cell
US20180056100A1 (en) * 2016-08-31 2018-03-01 Emerson Process Management Regulator Technologies Tulsa, Llc Method for Manufacturing a Flame Arrestor
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KR102221876B1 (en) * 2018-10-02 2021-03-03 주식회사 탑세이프 Flame arrester
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KR100918021B1 (en) 2008-09-19 2009-09-18 유니테크 주식회사 Explosive relief valve

Also Published As

Publication number Publication date
TW500617B (en) 2002-09-01
EP1240923B1 (en) 2006-12-06
CZ299455B6 (en) 2008-07-30
BR0200841B1 (en) 2010-12-28
DE10112957B4 (en) 2005-12-22
NO20021237D0 (en) 2002-03-13
PT1240923E (en) 2007-03-30
BR0200841A (en) 2002-12-10
US6978845B2 (en) 2005-12-27
ES2277965T3 (en) 2007-08-01
ATE347402T1 (en) 2006-12-15
US20020129947A1 (en) 2002-09-19
HU0200699D0 (en) 2002-04-29
CZ2002646A3 (en) 2002-11-13
DE10112957A1 (en) 2002-10-24
HUP0200699A2 (en) 2002-09-28
CA2372505C (en) 2009-09-01
PL351970A1 (en) 2002-09-23
NO20021237L (en) 2002-09-18
PL200865B1 (en) 2009-02-27
CA2372505A1 (en) 2002-09-17
HU224488B1 (en) 2005-09-28
DE50208875D1 (en) 2007-01-18

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