EP0375455A2 - Flammenrückschlagsicherung - Google Patents

Flammenrückschlagsicherung Download PDF

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Publication number
EP0375455A2
EP0375455A2 EP89313508A EP89313508A EP0375455A2 EP 0375455 A2 EP0375455 A2 EP 0375455A2 EP 89313508 A EP89313508 A EP 89313508A EP 89313508 A EP89313508 A EP 89313508A EP 0375455 A2 EP0375455 A2 EP 0375455A2
Authority
EP
European Patent Office
Prior art keywords
housing
flame
inlet
cup
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89313508A
Other languages
English (en)
French (fr)
Other versions
EP0375455A3 (de
Inventor
Nicholas Roussakis
Kenneth Ora Lapp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westech Industrial Ltd
Original Assignee
Westech Industrial Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westech Industrial Ltd filed Critical Westech Industrial Ltd
Publication of EP0375455A2 publication Critical patent/EP0375455A2/de
Publication of EP0375455A3 publication Critical patent/EP0375455A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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 present invention relates to a flame arrester capable of arresting a flame front advancing through a pipe line, and particularly, although not exclusively to an arrester comprising means for attenuating a detonation in combination with means for quenching the flame.
  • Flame arresters are commonly employed in pipe lines where the possibility of a backflash exists.
  • Backflash can occur where there is present a combination of three factors, namely: a flow of a flammable air/hydrocarbon gas mixture; confinement of the mixture within a pipe or other structure; and means for igniting the gas mixture.
  • a typical example exists in the case of a flare line extending from an oilfield storage tank.
  • a flammable gas mixture flows from the tank head-space through the line to a flare stack having an outlet to the atmosphere.
  • the mixture leaving the flare stack outlet is normally kept lit. If the flow velocity at the stack is not sufficiently high, the flame can "backflash" or burn upstream through the pipe line. If the flame front reaches the tank, the latter can explode.
  • flame arresters have long been emplaced in such lines to snuff out or quench the flame front before it reaches an installation (such as the storage tank) where serious harm could be done.
  • a flame arrester comprises a flanged tubular housing which is connected into the line to form an integral component thereof.
  • An “element” is positioned within the bore or chamber of the housing to extend transversely fully across the bore diameter.
  • the element functions to quench the flame front.
  • the element usually comprises a matrix having a multiplicity of small diameter, elongate channels extending therethrough in the direction of the pipe axis.
  • the matrix usually consists of metal.
  • One typical element for example, comprises a long flat sheet of aluminum, referred to as the "core”.
  • a second similar sheet is crimped in sawtooth fashion and the apexes of the crimps are in contact with the upper surface of the core sheet.
  • the product is then spirally wound to produce a cylindrical element.
  • An element of this type is commonly referred to as a "spiral wound crimped ribbon" element.
  • the channels of the element are minute in width or diameter. More specifically, the channel diameter is selected to be smaller than the "quenching diameter".
  • the quenching diameter is the largest diameter at which a flame within the channel would be extinguished under static flow conditions. The determination of the quenching diameter is commonly carried out in the industry in accordance with the practice outlined in "Progress in Combustion Science and Technology", Potter, A.E. Jr., Volume 1, pages 145-181 (1960).
  • a flame arrester element is provided with small enough channels, established by determination in accordance with standard industry practice, so that sufficient heat will be removed from a flame, by conductance through the matrix material, to cause the flame to be extinguished.
  • Flame propagation can occur in two modes, deflagration and detonation.
  • Deflagration is a combustion wave that propagates by the transfer of heat and mass to the unburned gas ahead of it.
  • Associated flame front overpressures can range from 0 to 10 or 20 times the initial value (which is commonly atmospheric pressure). Flame velocities are usually subsonic for deflagrations.
  • Detonation is a combustion wave that propagates by shock compression-induced ignition. Detonations travel supersonically, with Mach numbers of 5 to 10. Detonation overpressures typically reach 15 to 50 times the initial value.
  • an advancing flame front can accelerate and change from the deflagration mode to the detonation mode.
  • Detonation is evidenced by a rapid and sharp escalation in the pressure accompanying the flame front, said peak pressurewave being in spaced relationship in front of the flame front.
  • a typical pressure/distance plot based on a burn involving detonation in a pipe is set forth in Figure 2, following below, and shows the spectrum of pressure change that occurs as a flame front transition takes place between modes.
  • Applicant constructed and tested an element having a channel length 16 times that of a commercially available element designed in accordance with conventional practice. When subjected to detonation conditions, this extended element still failed over a significant portion of the flame propagation spectrum. Thus channel elongation does not appear to solve the problem of failure at high pressure, at least in a practical and feasible fashion.
  • Applicant tested elements having such turbulence-­creating channels and found that they do provide improved quenching. However, when subjected to the high pressures approaching or accompanying detonation conditions, the elements still failed with some regularity.
  • a detonation attenuator is provided within the housing of a flame arrester.
  • the attenuator is positioned in front of the quenching element, to receive and reflect part of the central portion of the detonation wave back into the pipe. Only a portion of the detonation wave passes around the attenuator and accompanies the flame to the element.
  • the modified flame arrester involves, in combination: - A housing whose internal chamber has a greater cross-sectional area than that of the pipe line, so there is expansion of the shock wave/flame front as it enters the chamber; and - A generally cup-shaped attenuator or member, positioned in line with and adjacent to the housing flame front inlet, for receiving and reflecting part of the detonation wave back down the pipe.
  • the attenuator side wall is inwardly spaced from the longitudinal wall of the housing to thereby form an annular passage connecting the flame front inlet with the quenching element.
  • the peripheral portion of the shock wave/flame front train passes through this passage to the element, wherein the flame is quenched.
  • the combination may have the following advantages: -
  • the element is protected by the attenuator from structural damage from detonation, to a much improved extent.
  • the element was rendered ineffective after as few as 3 detonations.
  • the same type of element was able to withstand as many as 25 detonations without significant damage;
  • the combined components performed to quench detonations.
  • the new arrester was successful in quenching on every run while the other units failed on some runs, as shown later in this specification.
  • the present arrester performed successfully over the full spectrum of wave propagation at the test conditions; and -
  • the attenuator can serve to protect the element from velocity erosion or degradation from collision by solid objects in the line. Velocity erosion occurs when fine particles carried in a high velocity gas flow strike the element.
  • a flame arrester for arresting the advance of a flame front through a pipe line, comprising: a generally tubular housing adapted to be connected with the pipe line, whereby the housing forms an integral component thereof, said housing forming an inlet for a flame front advancing through the pipe line and an outlet, said housing thus forming an open-ended chamber; element means, positioned in the chamber at its outlet end and extending transversely across the housing chamber, for quenching the flame attempting to pass therethrough; and a generally cup-shaped member, positioned in the chamber in line with and adjacent to, the inlet, for receiving the central portion of a detonation wave entering the chamber and reflecting part of it back into the pipe line.
  • the side wall of the cup-shaped member is spaced inwardly from the longitudinally extending wall of the housing, to form an annular passage therewith.
  • the width of the mouth of the cup-shaped member is greater than the width of the housing inlet, whereby the cup-­shaped member encircles the inlet.
  • a flame arrester for arresting the advance of a flame front through a pipe line, comprising: a generally tubular housing, said housing being adapted to be connected with the pipe line whereby the housing forms an integral component thereof, said housing forming an inlet for a flame front advancing through the pipe line, said housing further forming an open-ended chamber of expanded diameter relative to the pipe line with which it is to be used; element means, positioned in the housing at its outlet end and extending transversely fully across the housing chamber, for quenching the flame attempting to pass therethrough, said element means comprising a matrix forming a multiplicity of discrete channels extending therethrough generally in the direction of the longitudinal axis of the housing, each such channel having a width less than the diameter required for quenching a flame front in the deflagration mode; and detonation attenuating means for receiving the central portion of a detonation wave entering the chamber and reflecting it, said means being positioned in the chamber at its inlet
  • the element means comprises a stack of expanded metal sheets, each such sheet having a multiplicity of generally diamond-shaped openings having long and short widths, the sheets being alternately juxtapositioned so that a sheet has its opening long dimension rotated at about 90 o relative to the next adjacent sheet.
  • a flame arrester for arresting the advance of a flame front through a pipe line, comprising: a generally tubular housing, said housing being adapted to be connected with the pipe line, whereby the housing forms an integral component thereof, said housing forming an inlet for a flame front advancing through the pipe line and an outlet, said housing thus forming an open-ended chamber; element means, positioned in the chamber at its outlet end and extending transversely across the chamber, for quenching the flame attempting to pass therethrough; and a generally cup-shaped member, positioned in the chamber in line with and adjacent to but spaced from the inlet, said cup-shaped member being positioned between the inlet and the element means said member having a solid end wall extending transversely across the inlet and a side wall, said side wall being spaced inwardly from the longitudinally extending wall of the housing, to form an annular passage therewith, said cup-shaped member having its mouth directed towards the inlet, said cup-shaped member being operative to
  • a flame arrestor including any integer disclosed in the first aspect in combination with any integer disclosed in the second aspect and/or in combination with any integer disclosed in the third aspect.
  • the flame arrester 1 comprises a generally tubular housing 2, a quenching element 3, and a cup-shaped member or cup 4.
  • the housing 2 is adapted to be connected into a pipe line 5 to form a flow component thereof.
  • the element 3 and cup 4 are positioned within the housing 2.
  • the housing 2 is a multi-component assembly which consists of a flanged upstream end member 6, a tubular middle member 7 (made up of rings), and a downstream flange member 8.
  • upstream and downstream refer to the direction of flow of the gas passing through the line 5.
  • the upstream end member 6 forms a central bore or passage 9 for communication with the bore of the upstream end of the pipe line 5. It will be noted that the member 6 is outwardly flared, so that the diameter of the bore 9 is greater than that of the pipe line 5.
  • the member 6 also forms suitable openings around its periphery for receiving threaded tie rods 10 which, in cooperation with nuts 11, hold the members 6, 7, 8 together.
  • the downstream flange member 8 also forms peripheral openings for receiving the tie rods 10.
  • the member 8 forms a central threaded bore or flame inlet 12 which enables the member to be screwed onto the threaded downstream end of the pipe line 5. This bore 12 forms the flame front inlet for the arrester 1.
  • the housing When the three members 6, 7 , 8 are assembled using the tie rods 10 and nuts 11, the housing forms an open-­ended internal chamber 13, which provides a gas flow passage through the unit when it is connected into the pipe line 5.
  • the diameter of this chamber 13 is greater than or expanded relative to the diameter of the pipe line bore.
  • the quenching element 3 is positioned in the upstream end of the housing chamber 13.
  • the element 3 comprises upstream and downstream rings 14 and crossbars 15 holding four discrete element segments 16 and spacers 17 positioned between them in end-to-end formation.
  • Each element segment 16 has a conventional spiral-wound crimped ribbon 18 wound around a core 19 and contained within a ring 20 which is part of the housing middle member 7.
  • the solid material (or "matrix") of the ribbon 18 forms a multiplicity of small width, elongate, discrete channels 21.
  • the channels 21 extend in the direction of the longitudinal axis of the housing chamber 13.
  • the width or diameter of these channels 21 is selected to be smaller than the quenching diameter, when determined in accordance with standard industry practice for the conditions involved.
  • spacers 17 maintain a slight gap 22 between each element segment 16. These gaps 22 provide expansion zones for gas in the channels 21 and lead to turbulent flow of that gas.
  • FIG. 9 - 12 A preferred form of quenching element is shown in Figures 9 - 12.
  • This element comprises a stack 30 of sheets 31 of expanded metal forming a multiplicity of diamond-­shaped channels 32.
  • the sheets 31 are oriented in alternating fashion so that the major dimension of the channels 32 of one sheet 31 is crosswise to the major dimension of the channels of the next sheet. Stated otherwise, each sheet 31 is rotated 90 o relative to the next sheet in alternating fashion. This is particularly shown in Figure 12.
  • Ring-like end plates 33 are provided at each end of the stack 30.
  • Nut and bolt assemblies 34 extend through the end plates 33 and sheets 31 and hold the stack 30 together.
  • the tie rods 10 also extend through the assembly and clamp it against the inner shoulder 35 of the upstream end member 6.
  • the attenuator comprises a cup-shaped member or cup 4 having a solid end wall 41 and a tubular side wall 42.
  • the cup 4 is fixed in place in line with and adjacent to the flame inlet 12. More particularly, threaded rods 43 extend through the cup end wall 41 and flange member 8. Spacers 44 cooperate with the wall 41 and member 8 to fix the cup 4 in place.
  • the side wall 42 of the cup 4 is inwardly spaced from the longitudinal wall of the housing middle member 7. There is thus formed an annular passage 45 therebetween.
  • the mouth 4a of the cup 4 is directed towards the flame front inlet 12.
  • the rim 46 of the cup 4 is spaced a short distance (the "stand-off") from the downstream flange member 8.
  • the annular passage 45 communicates with the stand-off space 47 to form an L-shaped path past the cup 4.
  • the diameter of the bore 48 of the cup 4 is greater than the diameter of the flame inlet 12. Stated otherwise, the cup 4 encircles the flame inlet 12.
  • a detonation wave comprises three different zones or segments. These are: a shock wave, a following induction zone, and then a reaction zone. These zones are fancifully illustrated in Figures 14a - d.
  • the shock wave is responsible for the compression and heating of the unburned gas.
  • the induction zone represents the region extending back to the point at which exothermic release begins in the hot, pressurized gas.
  • the reaction or flame zone represents the region wherein exothermic reaction is initiated and completed.
  • the detonation wave advances through the pipe line 5.
  • the wave expands radially.
  • the strong central portion of the wave proceeds into the bore 48 of the cup 4 and a significant portion is reflected by the cup 4 back down the pipe line. Only the weaker peripheral portion of the shock wave accompanies the flame through the L-shaped passage 47, 45 to the element 3, where the flame is quenched.
  • the pressure associated with the peripheral portion of the shock wave that bypasses the attenuator is considerably lower than that associated with the central portion.
  • the annular or peripheral portion no longer appears to propagate as a detonation.
  • the test procedure was as follows: - The propane and air were metered into the down-stream pipe; - The mixture composition was monitored with a gas chromatograph to ensure propane concentration accuracy; - The pipe system was purged with the mixture and ignited. Different runs were ignited at different distances from the arrester. (Ignition location was important to all of these tests.
  • the explosion pressures experienced by the flame arrester tended to increase as the burn distance was increased. More particularly, starting from the ignition point closest to the flame arrester, the deflagration pressure increased with increasing distance from the flame arrester flame inlet.
  • FIG. 15 there is shown a schematic of an arrester A in accordance with the invention, having a cup-shaped attenuator.
  • the arrester A was repeatedly tested as set forth in Table I on the test circuit of Figure 13 and the flame was quenched on every test.
  • FIG. 1 A further embodiment of the attenuator is illustrated in Figure 1 .
  • the sidewall 60 of the cup 61 is partly turned back to create an annular confined zone 62 for trapping a peripheral portion of the shock wave.
  • the arrester of Figure 18 corresponded with that of Figure 20, except for the shape of the attenuator.
  • Figure 19 shows another alternative form of arrester.
  • Figure 19 shows an arrester 70 having a tubular housing 71 closed at its upper end by a wall 72.
  • a cylindrical element 73 is created by wrapping coiled expanded metal 74 around a support spool 75.
  • the spool 75 has structural support bars 76 that run parallel to its axis.
  • the expanded metal diamonds are all oriented in the same direction throughout the depth of the element 73.
  • the cup 77 is situated in the space 78 formed by the hollow spool 75.
  • the mouth 79 of the cup 77 is open toward the flame inlet 80.
  • the cup 77 acts to reduce the amount of pressure piling that results from the reflection of the incoming shock wave from the housing end wall 72.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Gas Burners (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP89313508A 1988-12-23 1989-12-22 Flammenrückschlagsicherung Withdrawn EP0375455A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000587033A CA1311409C (en) 1988-12-23 1988-12-23 Flame arrester having detonation-attenuating means
CA587033 1988-12-23

Publications (2)

Publication Number Publication Date
EP0375455A2 true EP0375455A2 (de) 1990-06-27
EP0375455A3 EP0375455A3 (de) 1990-08-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89313508A Withdrawn EP0375455A3 (de) 1988-12-23 1989-12-22 Flammenrückschlagsicherung

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EP (1) EP0375455A3 (de)
CA (1) CA1311409C (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5165484A (en) * 1991-09-17 1992-11-24 Chaput Victor B Oil well fire extinguisher having oil jet dispersing screens
WO1994022536A1 (en) * 1993-03-29 1994-10-13 Cheng Sing Wang Prevention of unwanted fire
DE4438797C1 (de) * 1994-10-18 1996-03-07 Rmg Gaselan Regel & Mestechnik Detonationssichere Armatur
EP0765675A3 (de) * 1995-09-29 1998-03-11 Leinemann GmbH & Co. Verfahren und Vorrichtung zum Abschwächen einer Detonation in einem Behälter- bzw. Rohrleitungssystem
WO2000056406A1 (en) * 1999-03-24 2000-09-28 A.G. Marvac Limited Detonation flame arrester
EP1044703A2 (de) 1999-04-14 2000-10-18 Hörbiger Ventilwerke GmbH Flammensperre
WO2001037933A2 (de) 1999-11-25 2001-05-31 Rmg-Gaselan Regel + Messtechnik Gmbh Verfahren und vorrichtung zum dämpfen des druckstosses an flammensperren bei detonationen
WO2001041876A2 (de) 1999-11-25 2001-06-14 Rmg-Gaselan Regel + Messtechnik Gmbh Verfahren und vorrichtung zum dämpfen des druckstosses an flammensperren bei detonationen
EP0951922A3 (de) * 1998-04-25 2001-07-25 Leinemann GmbH & Co. Verfahren zum Unschädlichmachen einer Detonationsfront und Detonationssicherung
EP1240923A1 (de) 2001-03-17 2002-09-18 Leinemann GmbH & Co. Flammensperrenanordnung
WO2003022363A1 (en) * 2001-09-06 2003-03-20 Dwight Brooker Detonation flame arrestor including a spiral wound wedge wire screen for gases having a low mesg
US7905244B2 (en) 2006-11-15 2011-03-15 Rembe Gmbh Explosion pressure relief device
DE102014116149A1 (de) * 2014-11-06 2016-05-12 R. Stahl Schaltgeräte GmbH Flammenschutzfilter aus einer Anzahl von Schichtenfolgen sowie Anordnungen von Flammenschutzfiltern und deren Verwendung
EP3381519A1 (de) * 2017-03-28 2018-10-03 The Boeing Company Verbrennungsableiterquantifizierungssysteme und -verfahren
EP3381520A1 (de) * 2017-03-28 2018-10-03 The Boeing Company Verbrennungsableitertestsysteme und -verfahren
CN110013631A (zh) * 2018-01-09 2019-07-16 中国石油化工股份有限公司 可监测阻火状况的阻火器
CN110393876A (zh) * 2019-08-05 2019-11-01 清华大学 锂离子电池防火装置
DE102018116576B3 (de) * 2018-07-09 2019-11-07 Oberland Mangold Gmbh Flammen-Sperreinheit sowie Verfahren zu ihrer Herstellung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR26558E (fr) * 1922-03-09 1924-02-01 Dispositif de sûreté empêchant les explosions de récipients contenant des liquides ou des gaz inflammables
DE482406C (de) * 1926-12-07 1929-09-12 Werner Handellsgesellschaft Aus einem Kiestopf und einem siphonartigen Fluessigkeitsverschluss bestehende Durchschlagsicherung
GB368680A (en) * 1929-08-30 1932-03-10 Wolf Otto Dry return shock safety device of assembled corrugated metal bodies for autogeous welding torches
US1960043A (en) * 1931-04-18 1934-05-22 Protectoseal Co Attachment for combustible gas conduits
DE1429088A1 (de) * 1963-06-27 1968-12-12 Neumann Dr Ing Jan Undurchschlagbare Kapillarsicherung zur Einstellung der Flamme in einer Rohrleitung
DE2436206A1 (de) * 1974-07-26 1977-08-04 Erben Des Smetanca Vladimi Die Durchschlagfeste flammsicherung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR26558E (fr) * 1922-03-09 1924-02-01 Dispositif de sûreté empêchant les explosions de récipients contenant des liquides ou des gaz inflammables
DE482406C (de) * 1926-12-07 1929-09-12 Werner Handellsgesellschaft Aus einem Kiestopf und einem siphonartigen Fluessigkeitsverschluss bestehende Durchschlagsicherung
GB368680A (en) * 1929-08-30 1932-03-10 Wolf Otto Dry return shock safety device of assembled corrugated metal bodies for autogeous welding torches
US1960043A (en) * 1931-04-18 1934-05-22 Protectoseal Co Attachment for combustible gas conduits
DE1429088A1 (de) * 1963-06-27 1968-12-12 Neumann Dr Ing Jan Undurchschlagbare Kapillarsicherung zur Einstellung der Flamme in einer Rohrleitung
DE2436206A1 (de) * 1974-07-26 1977-08-04 Erben Des Smetanca Vladimi Die Durchschlagfeste flammsicherung

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5165484A (en) * 1991-09-17 1992-11-24 Chaput Victor B Oil well fire extinguisher having oil jet dispersing screens
WO1994022536A1 (en) * 1993-03-29 1994-10-13 Cheng Sing Wang Prevention of unwanted fire
DE4438797C1 (de) * 1994-10-18 1996-03-07 Rmg Gaselan Regel & Mestechnik Detonationssichere Armatur
EP0765675A3 (de) * 1995-09-29 1998-03-11 Leinemann GmbH & Co. Verfahren und Vorrichtung zum Abschwächen einer Detonation in einem Behälter- bzw. Rohrleitungssystem
EP0951922A3 (de) * 1998-04-25 2001-07-25 Leinemann GmbH & Co. Verfahren zum Unschädlichmachen einer Detonationsfront und Detonationssicherung
WO2000056406A1 (en) * 1999-03-24 2000-09-28 A.G. Marvac Limited Detonation flame arrester
EP1044703A2 (de) 1999-04-14 2000-10-18 Hörbiger Ventilwerke GmbH Flammensperre
AT408839B (de) * 1999-04-14 2002-03-25 Hoerbiger Ventilwerke Gmbh Flammensperre
DE19957836B4 (de) * 1999-11-25 2004-05-27 RMG - Gaselan Regel + Meßtechnik GmbH Verfahren und Vorrichtung zum Dämpfen des Druckstoßes an Flammensperren bei Detonationen
DE19957837A1 (de) * 1999-11-25 2001-06-28 Rmg Gaselan Regel & Mestechnik Verfahren und Vorrichtung zum Dämpfen des Druckstoßes an Flammensperren bei Detonationen
DE19957837C2 (de) * 1999-11-25 2001-11-15 Rmg Gaselan Regel & Mestechnik Verfahren und Vorrichtung zum Dämpfen des Druckstoßes an Flammensperren bei Detonationen
WO2001037933A3 (de) * 1999-11-25 2001-12-06 Rmg Gaselan Regel & Messtechni Verfahren und vorrichtung zum dämpfen des druckstosses an flammensperren bei detonationen
WO2001041876A2 (de) 1999-11-25 2001-06-14 Rmg-Gaselan Regel + Messtechnik Gmbh Verfahren und vorrichtung zum dämpfen des druckstosses an flammensperren bei detonationen
WO2001041876A3 (de) * 1999-11-25 2002-05-10 Rmg Gaselan Regel & Messtechni Verfahren und vorrichtung zum dämpfen des druckstosses an flammensperren bei detonationen
WO2001037933A2 (de) 1999-11-25 2001-05-31 Rmg-Gaselan Regel + Messtechnik Gmbh Verfahren und vorrichtung zum dämpfen des druckstosses an flammensperren bei detonationen
EP1240923A1 (de) 2001-03-17 2002-09-18 Leinemann GmbH & Co. Flammensperrenanordnung
DE10112957B4 (de) * 2001-03-17 2005-12-22 Leinemann Gmbh & Co. Flammensperrenanordnung
WO2003022363A1 (en) * 2001-09-06 2003-03-20 Dwight Brooker Detonation flame arrestor including a spiral wound wedge wire screen for gases having a low mesg
US7905244B2 (en) 2006-11-15 2011-03-15 Rembe Gmbh Explosion pressure relief device
DE102014116149A1 (de) * 2014-11-06 2016-05-12 R. Stahl Schaltgeräte GmbH Flammenschutzfilter aus einer Anzahl von Schichtenfolgen sowie Anordnungen von Flammenschutzfiltern und deren Verwendung
WO2016070874A1 (de) * 2014-11-06 2016-05-12 R. Stahl Schaltgeräte GmbH Flammenschutzfilter aus einer anzahl von schichtenfolgen sowie anordnungen von flammenschutzfiltern und deren verwendung
CN107073306A (zh) * 2014-11-06 2017-08-18 R.施塔尔开关设备有限责任公司 由多个层序列构成的火焰保护过滤器以及火焰保护过滤器的系统及其应用
US10537760B2 (en) 2014-11-06 2020-01-21 R. Stahl Schaltgeraete Gmbh Flame-guard filter composed of a number of layer sequences, and arrangements of flame-guard filters and their use
EP3381519A1 (de) * 2017-03-28 2018-10-03 The Boeing Company Verbrennungsableiterquantifizierungssysteme und -verfahren
EP3381520A1 (de) * 2017-03-28 2018-10-03 The Boeing Company Verbrennungsableitertestsysteme und -verfahren
US10286241B2 (en) 2017-03-28 2019-05-14 The Boeing Company Combustion arrester quantification systems and methods
US10543387B2 (en) 2017-03-28 2020-01-28 The Boeing Company Combustion arrester test systems and methods
CN110013631A (zh) * 2018-01-09 2019-07-16 中国石油化工股份有限公司 可监测阻火状况的阻火器
CN110013631B (zh) * 2018-01-09 2024-04-05 中国石油化工股份有限公司 可监测阻火状况的阻火器
DE102018116576B3 (de) * 2018-07-09 2019-11-07 Oberland Mangold Gmbh Flammen-Sperreinheit sowie Verfahren zu ihrer Herstellung
CN110393876A (zh) * 2019-08-05 2019-11-01 清华大学 锂离子电池防火装置
CN110393876B (zh) * 2019-08-05 2024-05-31 清华大学 锂离子电池防火装置

Also Published As

Publication number Publication date
EP0375455A3 (de) 1990-08-29
CA1311409C (en) 1992-12-15

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