EP0069654B1 - Dispositif d'allumage d'une torchère - Google Patents

Dispositif d'allumage d'une torchère Download PDF

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Publication number
EP0069654B1
EP0069654B1 EP82401229A EP82401229A EP0069654B1 EP 0069654 B1 EP0069654 B1 EP 0069654B1 EP 82401229 A EP82401229 A EP 82401229A EP 82401229 A EP82401229 A EP 82401229A EP 0069654 B1 EP0069654 B1 EP 0069654B1
Authority
EP
European Patent Office
Prior art keywords
distance
cartridge
flare
casing
situated
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
Application number
EP82401229A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0069654A1 (fr
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/fr
Application granted granted Critical
Publication of EP0069654B1 publication Critical patent/EP0069654B1/fr
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 torchieres supplied very discontinuously or exceptionally, as during well tests, or as an ultimate safety measure when ordinary means, maintained in continuous standby, are rendered faulty by a fault in the gas supply to the pilot lights, by a power failure or by 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 torch orifice at a height above the ground which often exceeds 50 m.
  • the present invention makes it possible to overcome these difficulties by placing the ignition device at a distance as small as possible from the orifice of the flare, which allows a taut shot much more precise than the curved shot of the known devices, and which allows the propellant elements of the cartridge to be given characteristics giving it a short combustion time, which results in the arrival on the immediate environment of the flare of cartridge residues having reached a temperature close to room temperature, thus avoiding any fire hazard.
  • 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 of 1 to 10 m from the axis of the flare, and at a distance b from 2 to 20 m below the orifice 3 thereof, this housing being provided with a cover 11 capable of being moved from a closed position, in which the cartridges, at the 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 m 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 tangent values 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 and 3 times the distance from the housing 4 to point 7, on the axis of the flare.
  • the 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 and thermally insulated housing 18 inside the housing 4 is placed in a cylindrical case 23 whose lower orifice is closed by a plug 25 having a passage 26 for a means of firing, and the upper orifice of which is closed by a seal 27 which can be fractured by the effect of the firing of the cartridge.
  • each box 4 is capable of being moved from a closed position A to an open position B, by means of an articulated jack 14 arranged inside the sealed and insulated housing 18 thermally.
  • 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, optionally, to an intermediate standby position, thanks to a handling means.
  • a flare 1 comprising 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 lines.
  • the flare 1 is provided with an ignition device consisting of boxes 4 for launching pyrotechnic cartridges, disposed at a distance a of 1 to 10 m from the axis ZZ 'of the conduit 2, and at a distance b of 2 20 m below 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.
  • Fig. 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 launching unit 4 comprising a double-walled housing body 10, a volume 12 comprised between said double walls and filled with a thermal insulator, constituting a continuous protective sheath.
  • the cover 11 can be moved from a closed position A, shown in FIG. 3 in solid lines, in an open position B, shown in FIG. 3 in broken lines, by rotation about an axis 13 under the action of an electric actuator 14.
  • This actuator 14 is articulated at one end by an articulation 15 with the cover 11 and, on the other end, by an articulation 16 with a part secured to 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 delimits with the internal wall of this body 10 a space 19 in which a forced circulation of fresh air is established, the entry of which takes place by a nozzle such as 20 and the exit by a nozzle such as 21.
  • FIG. 22 shows one of the four pyrotechnic cartridges fitted to the launching unit 4; they are distributed on either side of the cylinder 14, as indicated in FIG. 4, and housed in a waterproof case 23, as indicated in FIG. 5.
  • Such a case 23 is constituted by a tubular casing 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 by an upper bottom formed by a cover 27 of the type which can be fractured 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 in addition to the openings 20 and 21 for the cooling air inlet and outlet ducts, has an opening 29 for the evacuation of any condensation water and an opening 30 for the arrival of the general power supply cable 31 surrounded by its flame-retardant sheath 32, this cable 31 being connected to this housing 33 for the distribution of the circuits relating to the jack 14 and to the cartridges such as 22.
  • a plate 34 which realizes the installation plane of the device, this plate is fixed on a support adjustable in elevation (not shown).
  • the four cartridges 22 are supported on this plate 34 by means of the plugs 25 which constitute the bottom 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 distance of between 1.2 and 3 times the distance from the housing 4 at point 7 on the axis of the flare.
  • Fig. 6 gives the diagram of an ignition device in which a housing 4 can be moved from a firing position 37 to a maintenance position 38, or the reverse depending on the use on a hot or cold torch, using a transfer means 39.
  • This transfer means 39 of usual technique, is shown diagrammatically as consisting of a chain 40 formed of links hinged together, this chain 40 bearing on two toothed wheels 41 and 42; the wheel 41 is located slightly above the firing position 37 and the wheel 42, which is located slightly below the maintenance position, 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 housing 4 by rotation of the cover 11 around the hinge pin 13.
  • a cartridge 22 is then fired 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 defined average position 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 pyrotechnic fallout likely to cause an 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)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Surgical Instruments (AREA)
EP82401229A 1981-07-03 1982-06-30 Dispositif d'allumage d'une torchère Expired EP0069654B1 (fr)

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 EP0069654A1 (fr) 1983-01-12
EP0069654B1 true EP0069654B1 (fr) 1984-11-14

Family

ID=9260199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401229A Expired EP0069654B1 (fr) 1981-07-03 1982-06-30 Dispositif d'allumage d'une torchère

Country Status (6)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO177162C (no) * 1993-06-03 1995-07-26 Statoil As Fremgangsmåte og apparat til tenning av gasser i flammetårn
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
WO2004085923A1 (fr) * 2003-03-24 2004-10-07 Sn Technologies S.A. Installation pour l’allumage d’un fluide combustible
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
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

Family Cites Families (4)

* 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
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

Also Published As

Publication number Publication date
DE3261238D1 (en) 1984-12-20
NO151843C (no) 1985-06-12
FR2509020A1 (fr) 1983-01-07
EP0069654A1 (fr) 1983-01-12
NO151843B (no) 1985-03-04
NO822331L (no) 1983-01-04
US4449920A (en) 1984-05-22
FR2509020B1 (no) 1983-11-18
JPS5845412A (ja) 1983-03-16

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