EP0069654A1 - Zündvorrichtung für einen Fackelbrenner - Google Patents

Zündvorrichtung für einen Fackelbrenner

Info

Publication number
EP0069654A1
EP0069654A1 EP82401229A EP82401229A EP0069654A1 EP 0069654 A1 EP0069654 A1 EP 0069654A1 EP 82401229 A EP82401229 A EP 82401229A EP 82401229 A EP82401229 A EP 82401229A EP 0069654 A1 EP0069654 A1 EP 0069654A1
Authority
EP
European Patent Office
Prior art keywords
housing
distance
cartridge
flare
orifice
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.)
Granted
Application number
EP82401229A
Other languages
English (en)
French (fr)
Other versions
EP0069654B1 (de
Inventor
André Lerouge
Jean-Louis Résidence du Parc Esc.F André
Pierre Coutin
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.)
Elf Antar France
R Alkan et Cie
Original Assignee
R Alkan et Cie
Elf France SA
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 R Alkan et Cie, Elf France SA filed Critical R Alkan et Cie
Publication of EP0069654A1 publication Critical patent/EP0069654A1/de
Application granted granted Critical
Publication of EP0069654B1 publication Critical patent/EP0069654B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q21/00—Devices for effecting ignition from a remote location
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q13/00—Igniters not otherwise provided for

Definitions

  • the invention relates to a device for igniting flares by means of pyrotechnic cartridges.
  • Such devices are used for lighting flares that are supplied very discontinuously or exceptionally as during well tests, or else as an ultimate safety measure when ordinary means, kept in continuous standby, are defective by a failure to supply the pilot lights with gas or due to a power failure or any other event.
  • the known devices for igniting flares by pyrotechnic cartridges are actuated manually from the ground, which implies the use of a propellant element capable of launching the fuel elements in such a way that they pass through the cone of gas leaving the the orifice of the torch at a height above the ground which often exceeds fifty meters.
  • the present invention makes it possible to overcome these difficulties by placing the ignition device at the shortest distance possible from the orifice of the flare, which allows a taut shot much more precise than the curved shot of known devices. , and which makes it possible to give the propelled elements of the cartridge characteristics giving it a short combustion time, which causes the arrival on the immediate environment of the flare of cartridge residues having reached a temperature close to room temperature , thus avoiding any risk of fire.
  • a device for lighting a flare by pyrotechnic cartridge is characterized in that each cartridge (22) is arranged in a housing (4) placed at a distance (a) from 1 to 10 meters from the axis of the flare, and at a distance (b) from 2 to 20 meters below the orifice (3) thereof, this housing being provided with a cover (11) capable of being moved from a position closure in which the cartridges, inside the housing (4), are located in a sealed and thermally insulated housing (18) in an open position in which each cartridge is pointed at a point (7) located on the axis of the flare at a distance (c) from 1 to 10 meters above the orifice (3) thereof, the distance (b) being greater than the distance (c) and the distances (a ), (b) and (c) being such that (a) / [(b) + (c)] is between the values of tangent 45 ° and tangent 20 °.
  • each cartridge comprises a propulsion element and at least one propelled and combustible element, called a star, the combustion time of which is fixed so that this combustion takes place entirely over a path of between 1.2 times and 3 times the distance from the housing (4) to point (7), on the axis of the flare.
  • this housing (18) in which the cartridges (22) are located, is sealed and thermally insulated, this housing (18) is surrounded by a space (19) traversed by a stream of cooling air and, then, a continuous sheath (12) made of a heat-insulated material.
  • each cartridge (22) located in a sealed housing (18) and thermally insulated inside the housing (4) is placed in a cylindrical case (23) whose lower orifice is closed by a plug ( 25) comprising a passage (26) for a firing means, and the upper orifice of which is closed by a seal (27) which can be fractured by the firing of the cartridge.
  • the housing (18) in which the cartridges (22) are located is waterproof, the sealing character of the cases (23) in which each cartridge is placed, gives an additional assurance of longevity for the elements of pyrotechnic products contained by the cartridge.
  • each housing (4) is capable of being moved from a closed position (A) to an open position (B) by means of an articulated jack (14) disposed inside the housing (18) sealed and thermally insulated.
  • the boxes (4) are located on a walkway (5) accessible from the ground.
  • the housings (4) can be moved from their position of use to a maintenance position and possibly to an intermediate standby position thanks to a handling means.
  • FIG. 1 there is a flare (1) having a vertical duct (2) of axis ZZ 'leading to an end orifice (3).
  • the vertical duct (2) can be self-supporting as in FIG. 1 or supported by a metal construction (not shown) or held in place by guy wires.
  • the flare (1) is provided with an ignition device consisting of boxes (4) for launching pyrotechnic cartridges, arranged at a distance (a) of 1 to 10 meters from the axis ZZ 'of the conduit (2) and at a distance (b) from 2 to 20 meters below the orifice (3) of the flare.
  • the distance (a) is usually a few meters and (b) about ten meters.
  • the boxes (4) are connected to an electrical control station (6) by an electrical pipe (8).
  • Figure 2 shows the arrangement of four boxes (4) on a walkway (5): two of these boxes are aligned in the direction (9) of the prevailing wind, two others are aligned in the perpendicular direction.
  • FIG. 3 gives a longitudinal section of a launch box (4) comprising a body (10) of a double wall box, a volume (12) comprised between said double walls and filled with a thermal insulator, constituting a sheath of continuous protection.
  • the cover (11) is capable of being moved from a closed position (A) shown in Figure 3 in solid lines to an open position (B) shown in Figure 3 in broken lines, by rotation around an axis (13) under the action of an electric actuator (14).
  • This cylinder (14) is articulated at one end by an articulation (15) with the cover (11) and at the other end by an articulation (16) with a part integral with the body (10) of the housing (4).
  • a formwork (17) inside the body (10) of the housing constitutes the envelope of a sealed and thermally insulated housing (18), it defines with the internal wall of this body (10) a space (19) in which is established a forced circulation of fresh air whose entry is effected by a nozzle such as (20) and the exit by a nozzle such as (21).
  • Such a case (23) is constituted by a tubular envelope (24) comprising a lower bottom constituted by a removable plug (25) which allows the introduction of the cartridge inside the case, this bottom being pierced by a hole (26) for the passage of an electrical conductor connecting the cartridge to the firing means and an upper bottom constituted by a cover (27) of the fracturable type by firing the cartridge.
  • This cover is blocked on the upper contour of the tubular casing (24) by a ferrule (28) so as to ensure sealing.
  • the body (10) of the housing (4) in addition to the openings (20) and (21) for the cooling air inlet and outlet ducts, has an opening (29) for the evacuation of the possible condensation water and an opening (30) for the arrival of the general power supply cable (31) surrounded by its fireproof sheath (32), this cable (31) being connected to a box (33) for the distribution of circuits relating to the jack (14) and to the cartridges such as (22).
  • a plate (34) which realizes the installation plane of the device is fixed on a support adjustable in site, not shown.
  • the four cartridges (22) bear on this plate (34) by means of the plugs (25) which constitute the lower bottom of the cases (23).
  • FIG 5 is shown schematically in broken lines, the filling of the cartridge (22), where there is a propulsion element (35) and three propelled elements, called stars, such as (36).
  • the combustion time of these propelled elements (36) is fixed so that this combustion takes place entirely over a path of between 1.2 times and 3 times the distance from the housing (4) to the point (7) on the axis of the flare.
  • FIG. 6 shows the diagram of an ignition device in which a housing (4) is movable from a firing position (37) to a maintenance position (38), or vice versa depending use on a hot or cold torch, using a transfer means (39).
  • This transfer means (39) of usual technique is shown schematically as consisting of a chain (40) formed of links hinged together, this chain (40) bearing on two centered wheels (41) and (42); the wheel (41) is located slightly above the firing position (37) and the wheel (42) is located slightly below the maintenance position, it is driven by a motor.
  • Other transfer means can be used, such as a rack, not shown, on which a toothed wheel is supported, this toothed wheel being driven by a motor.
  • a remote-controlled electric control of the jack (14) causes the opening of the box ( 4) by rotation of the cover (11) around the hinge pin (13).
  • a cartridge (22) is then ignited by remote control.
  • the choice of the pyrotechnic composition of the propulsion element (35) and of the propelled elements (36) as well as the precision of the assembly chosen means that the passage of the propelled elements (36) through the cone of exhaust gas around) the average position defined by point (7), safely ignites the waste gas.
  • the cover (11) is then closed by action of the remote control.
  • composition of the cartridges being such that the combustion time is very short, the extinction of the residual elements of the cartridge is total and there is no fallout pyrotechnics likely to cause accidental ignition in the environment of the flare.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Surgical Instruments (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
EP82401229A 1981-07-03 1982-06-30 Zündvorrichtung für einen Fackelbrenner Expired EP0069654B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8113170 1981-07-03
FR8113170A FR2509020A1 (fr) 1981-07-03 1981-07-03 Dispositif d'allumage d'une torchere

Publications (2)

Publication Number Publication Date
EP0069654A1 true EP0069654A1 (de) 1983-01-12
EP0069654B1 EP0069654B1 (de) 1984-11-14

Family

ID=9260199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401229A Expired EP0069654B1 (de) 1981-07-03 1982-06-30 Zündvorrichtung für einen Fackelbrenner

Country Status (6)

Country Link
US (1) US4449920A (de)
EP (1) EP0069654B1 (de)
JP (1) JPS5845412A (de)
DE (1) DE3261238D1 (de)
FR (1) FR2509020A1 (de)
NO (1) NO151843C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994029648A1 (en) * 1993-06-03 1994-12-22 Den Norske Stats Oljeselskap A.S. Method and apparatus for igniting inflammable gases in a flare tower
CN100545516C (zh) * 2008-03-19 2009-09-30 中国科学院力学研究所 远程爆燃点火装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO179762C (no) * 1994-10-12 1996-12-11 Techno Consult As Fremgangsmåte, anordning og tennorgan for antennelse av brennbare gasser for eksempel fra en fakkel på et flammetårn
NO312565B1 (no) * 2000-10-02 2002-05-27 Aibel Gas Technology As Fremgangsmate og system til tenning av brennbare fluider
AU2003220793A1 (en) * 2003-03-24 2004-10-18 Sn Technologies S.A. Facility for igniting a combustible fluid
CN102003920B (zh) * 2010-09-18 2013-02-13 山西北方晋东化工有限公司 一种天然气井放喷点火弹

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436305A (en) * 1944-02-03 1948-02-17 Remington Arms Co Inc Ammunition
US2830658A (en) * 1954-02-12 1958-04-15 Exxon Research Engineering Co Flare stack ignition

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952309A (en) * 1958-01-16 1960-09-13 Bernard F Fay Flamethrower
US3635649A (en) * 1969-10-27 1972-01-18 Tweed Paul B Dependable performance igniter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436305A (en) * 1944-02-03 1948-02-17 Remington Arms Co Inc Ammunition
US2830658A (en) * 1954-02-12 1958-04-15 Exxon Research Engineering Co Flare stack ignition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994029648A1 (en) * 1993-06-03 1994-12-22 Den Norske Stats Oljeselskap A.S. Method and apparatus for igniting inflammable gases in a flare tower
GB2295448A (en) * 1993-06-03 1996-05-29 Norske Stats Oljeselskap Method and apparatus for igniting inflammable gases in a flare tower
GB2295448B (en) * 1993-06-03 1997-03-12 Norske Stats Oljeselskap Method and apparatus for igniting inflammable gases in a flare tower
CN100545516C (zh) * 2008-03-19 2009-09-30 中国科学院力学研究所 远程爆燃点火装置

Also Published As

Publication number Publication date
DE3261238D1 (en) 1984-12-20
FR2509020B1 (de) 1983-11-18
JPS5845412A (ja) 1983-03-16
US4449920A (en) 1984-05-22
EP0069654B1 (de) 1984-11-14
FR2509020A1 (fr) 1983-01-07
NO151843B (no) 1985-03-04
NO151843C (no) 1985-06-12
NO822331L (no) 1983-01-04

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