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EP0758438B1 - Vorrichtung zum koordinierten steuern von mindestens zwei gasströmen, und damit ausgerüstete brenner - Google Patents

Vorrichtung zum koordinierten steuern von mindestens zwei gasströmen, und damit ausgerüstete brenner Download PDF

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Publication number
EP0758438B1
EP0758438B1 EP96904911A EP96904911A EP0758438B1 EP 0758438 B1 EP0758438 B1 EP 0758438B1 EP 96904911 A EP96904911 A EP 96904911A EP 96904911 A EP96904911 A EP 96904911A EP 0758438 B1 EP0758438 B1 EP 0758438B1
Authority
EP
European Patent Office
Prior art keywords
valve
line
gas
shut
supplying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96904911A
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English (en)
French (fr)
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EP0758438A1 (de
Inventor
Gilles Cannet
Gervais Lemesle
Philippe Pisot
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.)
Lincoln Electric Company France SA
Original Assignee
La Soudure Autogene Francaise
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Publication of EP0758438A1 publication Critical patent/EP0758438A1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/027—Regulating fuel supply conjointly with air supply using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/465—Details, e.g. noise reduction means for torches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/22—Timing network
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/22—Pilot burners
    • F23N2227/24—Pilot burners the pilot burner not burning continuously
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/28—Ignition circuits
    • F23N2227/30—Ignition circuits for pilot burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/36—Spark ignition, e.g. by means of a high voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/18—Groups of two or more valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/11—Torches

Definitions

  • the present invention relates to a device for coordinated control of the flow of two gases, of the type comprising two supply conduits each provided a stop valve, a first conduit comprising a gas supply nozzle of an actuator pneumatic of the stop valve of the second conduit, and in which there is provided a common control member for the supply of said actuator and of the flow in the first conduit. It also concerns a burner, in particular a torch, of the type comprising a first oxidant gas supply duct and a second fuel gas supply duct.
  • the invention aims to provide a device allowing coordinated control of the supply in gas from two separate conduits, this device being simple to carry out, easy to use, reliable and not having the disadvantages mentioned above.
  • the invention relates to a device coordinated control of the flow of two gases, of the aforementioned type, characterized in that the actuating member pneumatic actuates the stop valve of the second conduit for gas flow control only from the second conduit.
  • the invention also relates to a device for coordinated control of the flow of more than two gases, with more than two supply lines fitted each of a stop valve, a first conduit comprising a nozzle for supplying gas to actuating members pneumatic shut-off valves for other conduits, and in which there is provided a common control member for the supply of said actuating and the flow in the first conduit, the actuating members pneumatic actuating the stop valves of the other conduits for controlling gas circulation only from these other conduits.
  • the invention also relates to a burner, in particular a torch, of the type comprising a first oxidizer gas supply line and a second fuel gas supply duct, characterized in what it includes a device for controlling both conduits as defined above.
  • the invention further relates to a burner, in particular as defined above, of the type comprising a first oxidant gas supply duct, a second fuel gas supply pipe, and a ignition device, characterized in that one of the conduits have a gas supply nozzle pneumatic actuator of a piezoelectric element, the latter being electrically connected to the ignition device for its power supply electric when supplying said actuating member.
  • the schematic coordinated control device in FIG. 1 comprises two supply conduits 10, 12 into two gases which are assumed to be respectively from oxidizing gas, for example oxygen, and combustible gas, for example acetylene.
  • Ducts 10 and 12 are supplied from gas storage tanks under pressure 14 and 16. Furthermore, these conduits 10, 12 meet at their outlet end in a nozzle end 18 adapted to feed a flame of heating a blowtorch, for example.
  • Ducts 10 and 12 can also, alternatively, join in a intermediate mixer connected by a single conduit to the end nozzle.
  • a stop valve 20 On the supply duct 10 is disposed a stop valve 20, of any known type. Duct 22 supply of an actuating cylinder 24 is stitched on the conduit 10 downstream of the stop valve 20. On the tapping 22 is arranged a timing ball 25.
  • the cylinder 24 shown schematically in section in Figure 1 is a single acting cylinder of the conventional type, comprising a cylindrical body 26 in which a piston is movable 28.
  • This piston 28 delimits a chamber at the front of the jack watertight before 30 connected to the downstream end of the tap 22 and, at the rear, a rear chamber 32 communicating by permanence with the surrounding environment through an opening end 34.
  • a spring 36 is arranged, one end of which is supported on the rear wall of the body 26 and the other end of which rests on the piston 28.
  • a rod 38 of the jack, integral with the piston 28, is extended by an actuating rod 40 of a valve stop 42 disposed on the supply conduit 12 in combustible gas, this valve 42 thus being actuated by cylinder 24.
  • the stop valve 42 shown diagrammatically in section on the Figure 1, includes an inlet chamber 44 communicating with an outlet chamber 46 through a bore 48.
  • the rod actuating valve 40 axially passes through these two chambers and this bore.
  • a conical needle 50 integral with the actuating rod 40, is suitable for cooperate with a chamfered end 52 of the bore 48 forming a valve seat in order to close off the bore 48 and thus isolate the arrival chamber 44 from the exit 46.
  • the device shown in Figure 1 includes furthermore a connection 11 connecting the arrival chamber of a valve 13 similar to the stop valve 42 to the portion before 10A of the supply duct 10 for oxidizing gas.
  • the outlet chamber of the valve 13 is extended by a additional oxygen supply duct 15 from chopped off. This duct opens in the vicinity of the nozzle end 18.
  • the actuating rod of the stop valve 13 is connected to the rod of a similar actuating cylinder 17 to cylinder 24.
  • the front chamber of cylinder 17 is connected to the supply line 10 for oxidizing gas via of a conduit 19 pricked downstream of the valve 20.
  • a control valve 21 is arranged on the tap 19. This valve 21 is formed by a three-port distributor or channels and two separate positions or states. A of its tracks, constituting its entrance, is connected to oxidizer gas supply line 10. A second track 23 is connected to the environment and constitutes a discharge or exhaust outlet.
  • the third way of distributor, constituting a power outlet is connected to the entrance to the front chamber of the jack 17.
  • the valve 20 When the valve 20 is closed, i.e. that it does not allow any fluid to pass, the oxidizing gas remains confined in the reservoir 14 and cannot circulate in the supply line 10. In particular, no flow does not take place at the level of the nozzle 18 or towards the front chamber 30 of the jack. Thus, room 30 communicates with the surrounding environment through the front portion 10A of the gas supply pipe 10 oxidizer. Under the effect of the spring 36, the piston 28 is pushed towards the front of the cylinder, the actuating rod 38 then being in the extended position. Under these conditions, the needle 50 is pressed against the valve seat 52, this which prohibits any flow of combustible gas in the supply line 12.
  • oxidant gas flows through the supply line 10 and flows to the end nozzle 18. Furthermore, under the pressure of the gas stored in the tank 14, oxidizing gas flows into the nozzle 22, gradually fills the timer 26 and finally increases the pressure inside the front chamber 30 of the jack. When the pressure in this room is sufficient to overcome the resistance of the spring 36, the piston 28 is moved backwards, retracting thus the rod 38 of the jack, which releases the needle 50 of the valve seat 52 and then authorizes the passage of the pressurized fuel gas from tank 16 up to the end nozzle 18.
  • the rear chamber 32 being in contact with the ambient environment through opening 34, the air contained in it is free to flow and does not obstruct the displacement of the piston 28.
  • the timer 25 constitutes a means delay for actuating the actuator 24. Indeed, when the valve 20 opens, the oxidizing gas flows immediately towards the end nozzle 18, where he is released. However, due to the presence of timer 25, a certain delay is necessary before the pressure inside the room 30 is sufficient to overcome the resistance of the spring 36. This delay is all the longer as the volume of the timer is larger. Indeed, this pressure must be reached both in the chamber 30 and in the balloon 25 before the jack 24 be activated. In addition, this period is all the more long as the pressure inside the gas tank 14 oxidizer is weaker.
  • the timer 25 can be replaced, alternatively, by a constriction reducing the flow in the stitching 22. Such a constriction also constitutes a time delay means. Besides, it is also possible to provide the opening 34 with a throttle of time delay.
  • Fuel and oxidant gas supply being established, it is possible to establish a flame at level of the end nozzle 18.
  • the torch thus formed can be used for heat a piece to be cut by flame cutting.
  • the valve 21 is open, which leads to the supply of the front chamber cylinder 17 with oxidizing gas from the duct 10.
  • the stop valve 13 is then gradually opened, leading to the circulation of oxygen towards the end free of the oxygen supply duct 15 from chopped off.
  • valve 21 When valve 21 is closed, the gas contained in the front chamber of the jack 17 escapes by a discharge outlet 23. Under the effect of the spring of the actuator 17, the valve 13 is then gradually closed. The flow of cutting oxygen from the duct supply 10 to the end of the duct 15 is thus stopped.
  • valve 20 When closing the valve 20, forming a common member for controlling the supply of the jack 24 and the flow in the first conduit 10, the supply oxidizing gas is stopped.
  • the room before 30 and the balloon 25 then being maintained in communication with the ambient medium through nozzle 18, the pressure at the interior of these drops by gas circulation oxidizer that they contain towards the ambient environment, and gradually becomes lower than the pressure required to overcome the spring thrust 36.
  • the valve 42 is then gradually closed under the effect of spring 36, which causes the circulation of the combustible gas to nozzle 18.
  • FIGS 2 and 3 show diagrammatically two other embodiments of the invention. On these figures, identical references designate elements common to the two embodiments and to the mode of realization of figure 1.
  • the supply line 12 in combustible gas includes, as before, the valve stop 42 actuated by the jack 24.
  • the conduit 10 oxidizer gas supply includes, except of any other valve, a stop valve 60 similar to the stop valve 42. This valve 60 is actuated by a cylinder 62 similar to cylinder 24 and similarly arranged.
  • a nozzle 64 is provided on the supply duct 10 upstream of the stop valve 60.
  • a distributor with three orifices or channels and two positions or states separate 66, forming a valve, disposed on the nozzle 64, has one of its tracks, constituting its entrance, connected by via the nozzle 64 to the supply duct 10, and a second channel 68 which constitutes an output of discharge or exhaust to the environment.
  • the third channel of distributor 66 constituting an output supply is connected respectively, via of two parallel branches 70, 72, to the chambers before cylinders 24 and 62, which are thus connected one to the other.
  • These branches 70 and 72 each have a timer choke 74 and 76.
  • choke 76 has a diameter larger than the throat 74.
  • the distributor 66 When the distributor 66, forming an organ common control of the two gases, connects the nozzle 64 to two branches 70 and 72, thus playing the role of a valve open, the front chambers of cylinders 24 and 62 are supplied with oxidizing gas, which causes, like this has been described with reference to FIG. 1, the opening progressive of valves 42 and 60. Thus, the supply of oxidizing gas and fuel is gradually ensured to the end nozzle 18.
  • Throttles 74 and 76 having diameters different, the cylinder 62 associated with the throttle 76 of larger diameter reaches pressure faster necessary to overcome the thrust of spring 36. Also, the associated valve 60 will be opened more quickly and more earlier than that associated with cylinder 24, for which the flow power is lower.
  • branches 70 and 72 are connected to the discharge outlet 68.
  • the oxidizing gas content under pressure in the front chambers of the cylinders 24 and 62 then flows towards the ambient medium, leading the gradual closing of the associated valves 42 and 60.
  • the valve 60 associated with the throttle 76 of larger diameter will be closed before that associated with the throat 74 of smaller diameter.
  • the front chamber of the jack 62 is connected to the third channel of distributor 66 via a conduit supply 78.
  • a conduit supply 78 On the cylindrical body 80 of the jack 62 is provided, behind the entry point of the conduit 78, an outlet 82 for supplying the jack 24. This outlet 82 is connected by a supply conduit 84 to the front chamber of the jack 24.
  • valve 60 When the jack 62 is supplied from the branch 64, by order from distributor 66, the gas oxidizer gradually fills the chamber before this one and moves the associated piston causing progressive opening of valve 60.
  • the piston exceeds the power outlet 82, the front chamber of the piston 24 is in turn supplied with oxidizing gas. So while valve 60 is already partially open, the piston of the jack 24 is gradually actuated, causing the valve 42 to open. In this embodiment, the valve 60 is therefore partially open before valve 42 begins to open. Continued supply of oxidizing gas to the chambers front of the cylinders completes the opening of the valves 60 and 42.
  • the springs 36 arranged in the rear chambers of the cylinders can also be arranged on the actuating rods 40 of the valves and lean on the body of these.
  • FIG 4 is shown schematically a embodiment of a torch according to the invention.
  • This torch uses the principle of the first embodiment ( Figure 1), but also includes a device automatic auxiliary ignition. So the references taken from Figure 1 designate similar elements.
  • the tap 22 is connected to the rear chamber of a jack 90 in which slides sealingly a piston 92 associated with a cylinder rod 94 forming the actuating rod of a distributor 96.
  • the front chamber of the jack 90 is in communication with the environment.
  • the fuel gas supply line 12 is connected to an input 98 of the distributor 96, communicating with an entry chamber 100. Behind this inlet chamber 100, along the rod 94 of the cylinder, is arranged an outlet chamber 102. An outlet portion 12A of the fuel gas supply duct 12 extends from this outlet chamber 102 of the distributor 96 to the end nozzle 18.
  • the portion 12A includes a flow control valve 12B.
  • the outlet portion 10A of the conduit 10 comprises, downstream of the branch 22, a valve 10B for adjusting the flow.
  • a supply conduit 104 of a device auxiliary ignition 106 is also connected to the chamber outlet 102 via a valve 108 to unidirectional actuation of any known type, capable of be for example a valve associated in a known manner with a unidirectional actuation device marketed by the TELEMECANIQUE company under the name of "lever with retractable roller "and bearing the reference XCM Z24.
  • cylinder rod 94 passing through the following distributor 96 the axis of the chambers 100 and 102 has a wall of separation or shutter 110 extending into the chamber input 100 and adapted to cooperate with a seat 112 from the distributor provided at the entrance to this room for separate the inlet 100 and outlet 102 rooms.
  • cam 114 is also arranged on the cylinder rod 94 to inside the outlet chamber 102. This cam 114 is adapted to actuate the valve 108.
  • a piezoelectric disc 116 secured to the distributor body 96 and connected to a device 118 by an isolated supply conductor 120.
  • the ignition device 118 is arranged at the outlet of the auxiliary ignition device 106.
  • the cylinder rod 94 has an end point 122 surrounded by a flange 124 on which supports one end of a spring 126, the other end end is supported on the body of the distributor, around the piezoelectric pad 116.
  • the tip 122 of the rod 94 exerts pressure on the piezoelectric pad 116, which generates a transmitted electric current by the supply conductor 120 to the device 118.
  • the spark generated by the device 118 causes a flame to ignite at of the auxiliary ignition device 106.
  • the combustible gases and oxidizer circulating in the supply conduits 10 and 12 arriving at the feed nozzle 18, the torch flame is lit by the flame of the auxiliary ignition device.
  • valve 20 When the valve 20 is closed again, analogous to the first embodiment, the power supply in oxidizing gas ceases and the rod 94 is retracted inside the cylinder in the opposite direction to the arrow F1, under the effect of the spring 126.
  • the cam 114 passes then in line with valve 108 without causing the opening of the supply conduit 104 of the ignition device auxiliary, then the wall 110 isolates the exit 102, leading to the complete interruption of fuel gas circulation.
  • the section of the supply duct 104 is chosen as low as possible.
  • the particular arrangement of the last embodiment torch allows automatic re-ignition of this in case of accidental interruption of the power supply in oxygen upstream of the tap 22, for example continued to an exhaustion of the storage tank 14. Such a interruption may also occur if pinched or crushing of the pipe connecting the tank 14 with a blowtorch, for example under the effect of the weight of a vehicle driving.
  • the cylinder 90 is again biased, so that the piezoelectric element 116 is again excited this which causes the flame to ignite as explained previously.
  • This automatic re-ignition is particularly useful since it avoids the release of combustible gas and oxygen in the atmosphere without them being burned after resuming oxygen supply if the control member (valve 20) remained open.
  • the circulation of the combustible gas is controlled by a cylinder actuated by the oxidizing gas. It is well understood that the two gases can be reversed by simple permutation of storage tanks 14 and 16, the oxidizing gas then being controlled by a jack powered by combustible gas. Reignition occurs in this case after refueling with combustible gas.
  • the joint body controlling the flow of the two gases namely, according to the embodiments, the valve 20 or the distributor 66
  • the valve 20 or the distributor 66 is a bi-stable organ, which is advantageously associated with a simple selection device manual pressure of one or other of its positions, each of them being maintained automatically without the need for the torch user maintain any pressure on the organ of ordered. A single push on a push button the control member is then necessary for ignition, and another pulse is enough to interrupt the operation.
  • valve 20 where the distributor 66 is a monostable member which closes normally supplying the actuator is a monostable member which closes normally supplying the actuator.
  • a permanent pressure on the push button of the controller is necessary to maintain the flame lit. As soon as the pressure stops, the conduits shut off and the flame goes out.
  • the invention can also be applied to a control device for more than two gases, conveyed by several separate supply lines.
  • each additional duct is fitted with a valve associated with an actuating cylinder, according to an arrangement similar to those described above, and each of cylinders is supplied in parallel or in series from the tapping arranged on the first conduit.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Claims (19)

  1. Vorrichtung zur koordinierten Steuerung von zwei Gasströmungen jener Art, die zwei Versorgungsleitungen (10, 12) aufweist, die jeweils mit einem Absperrschieber (20, 42; 60, 42; 20, 96) ausgestattet sind, wobei eine erste Leitung (10) eine Abzweigung (22; 64) zur Versorgung eines pneumatischen Betätigungsglieds (24; 90) des Absperrschiebers (42; 96) der zweiten Leitung (12) mit Gas aufweist, und bei der ein gemeinsames Glied (20; 66) zur Steuerung der Versorgung des Betätigungsglieds und der Strömung in der ersten Leitung (10) vorgesehen ist, dadurch gekennzeichnet, daß das pneumatische Betätigungsglied (24, 90) den Absperrschieber der zweiten Leitung (12) zur Steuerung der Zirkulation des Gases einzig der zweiten Leitung (12) betätigt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das gemeinsame Steuerglied durch den Absperrschieber (20) der ersten Leitung (10) gebildet wird, wobei dieser Schieber stromaufwärts der Abzweigung (22) angeordnet ist.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das gemeinsame Steuerglied ein an der Abzweigung angeordneter Verteiler (66) ist und daß der Absperrschieber (60) der ersten Leitung (10) stromabwärts der Abzweigung (64) angeordnet und einem zusätzlichen pneumatischen Betätigungsglied (62) zugeordnet ist, das über das gemeinsame Steuerglied (66) versorgt wird.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das zusätzliche pneumatische Betätigungsglied (62) des Absperrschiebers (60) der ersten Leitung (10) parallel zu dem Betätigungsglied (24) des Absperrschiebers (42) der zweiten Leitung (12) mit dem Ausgang des gemeinsamen Steuerglieds (66) verbunden ist.
  5. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Betätigungsglieder (24, 62) der Absperrschieber (42, 60) der ersten (10) und der zweiten (12) Leitung in Reihe angebracht sind.
  6. Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß der das gemeinsame Steuerglied bildende Verteiler (66) einen Ablaßausgang (68) aufweist, der verschlossen ist, wenn der Verteiler geöffnet ist, und zur Verbindung des Versorgungsausgangs des Verteilers mit der Atmosphäre, wenn der Verteiler verschlossen ist, ausgeführt ist.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie stromaufwärts des mindestens einen Betätigungsglieds (24, 62) eine Drossel (74, 76) oder eine Pufferkammer (26) aufweist, die ein differentielles Verzögerungsmittel für die Steuerung der Strömung in den beiden Leitungen (10, 12) aufweist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das oder jedes Betätigungsglied ein von einer Feder (36; 126) beaufschlagter Druckluftzylinder (24, 62; 90) ist.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das gemeinsame Steuerglied ein bistabiler Schieber oder Verteiler (20, 66) ist, der mit einer Vorrichtung zum Wählen durch einfachen manuellen Impuls ausgestattet ist.
  10. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das gemeinsame Steuerglied ein monostabiler Schieber oder Verteiler (20,66) ist, der normalerweise die Versorgung des Betätigungsglieds schließt.
  11. Vorrichtung zur koordinierten Steuerung von mehr als zwei Gasströmungen, die mehr als zwei Versorgungsleitungen aufweist, die jeweils mit einem Absperrschieber ausgestattet sind, wobei eine erste Leitung eine Abzweigung zur Versorgung von pneumatischen Betätigungsgliedern der Absperrschieber der anderen Leitungen mit Gas aufweist, und bei der ein gemeinsames Glied zur Steuerung der Versorgung der Betätigungsglieder und der Strömung in der ersten Leitung vorgesehen ist, wobei die pneumatischen Betätigungsglieder die Absperrschieber der anderen Leitungen zur Steuerung der Zirkulation des Gases einzig dieser anderen Leitungen betätigt.
  12. Brenner, insbesondere Schneidbrenner, jener Art, die eine erste Leitung (10) zur Versorgung mit Oxidationsgas und eine zweite Leitung (12) zur Versorgung mit Brenngas aufweist, dadurch gekennzeichnet, daß er eine Vorrichtung zur Steuerung der beiden Leitungen nach einem der vorhergehenden Ansprüche aufweist.
  13. Brenner nach Anspruch 12, der eine Steuervorrichtung nach Anspruch 2 und des weiteren eine Hilfsleitung (104) zur Versorgung einer Zündhilfseinrichtung (106) mit Brenngas aufweist, dadurch gekennzeichnet, daß die Abzweigung (22) zur Versorgung des Betätigungsglieds (90) mit Gas an der ersten Leitung (10) zur Versorgung mit Oxidationsgas angeschlossen ist und daß der der Leitung zur Versorgung mit Brenngas zugeordnete Absperrschieber ein Verteiler (96) ist, von dem einer der Ausgänge mit der Hilfsleitung (104) zur Versorgung der Zündhilfseinrichtung (106) mit Brenngas verbunden ist, wobei dieser Ausgang in Abhängigkeit von dem Zustand des Betätigungsglieds (90) gezielt versorgt wird.
  14. Brenner nach Anspruch 13, der des weiteren eine Zündeinrichung (118) aufweist, die an dem Ausgangsende der Hilfsleitung (104) zur Versorgung der Zündhilfseinrichtung (106) mit Brenngas angeordnet ist, dadurch gekennzeichnet, daß ein piezoelektrisches Element (116) vorgesehen ist, das zu seiner Versorgung mit elektrischer Energie mit der Zündeinrichtung (118) verbunden ist und nach der Versorgung der Zündhilfseinrichtung mit Gas von dem Verteiler (96) durch das Betätigungsglied (90) betätigt wird.
  15. Brenner nach Anspruch 14, dadurch gekennzeichnet, daß ein isolierter Versorgungsleiter (120) der Zündeinrichtung (118) im Innern der Hilfsleitung (104) zur Versorgung der Zündhilfseinrichtung (106) mit Brenngas angeordnet ist.
  16. Brenner nach einem der Ansprüche 12 bis 15, dadurch gekennzeichnet, daß er eine zusätzliche Leitung (15) zur Versorgung mit Oxidationsgas zum Schneiden eines Materials aufweist, wobei die zusätzliche Leitung (15) einen Absperrschieber (13) aufweist, der durch ein an der ersten oder zweiten Leitung (10) angeschlossenes pneumatisches Betätigungsglied (17) betätigt wird, und daß ein zusätzliches Steuerglied (21) vorgesehen ist, das zur Versorgung des pneumatischen Glieds (17) an der Abzweigung (19) angeordnet ist.
  17. Brenner insbesondere nach Anspruch 12 jener Art, die eine erste Leitung (10) zur Versorgung mit Oxidationsgas, eine zweite Leitung (12) zur Versorgung mit Brenngas und eine Zündeinrichtung (108) aufweist, dadurch gekennzeichnet, daß eine der Leitungen eine Abzweigung (22) zur Versorgung eines pneumatischen Betätigungsglieds (90) eines piezoelektrischen Elements (116) mit Gas aufweist, wobei letzteres für seine Versorgung mit elektrischer Energie bei der Versorgung des Betätigungsglieds (90) mit der Zündeinrichtung (108) elektrisch verbunden ist.
  18. Brenner nach Anspruch 17, bei dem jede Leitung (10, 12) einen Absperrschieber (20, 96) aufweist, dadurch gekennzeichnet, daß er des weiteren eine Hilfsleitung (104) zur Versorgung einer Zündhilfseinrichtung (106) mit Brenngas aufweist, daß die Abzweigung (22) zur Versorgung des Betätigungsglieds (90) mit Gas an der ersten Leitung (10) zur Versorgung mit Oxidationsgas angeschlossen ist und daß das pneumatische Betätigungsglied zur Betätigung des der Leitung zur Versorgung mit Brenngas zugeordneten Absperrschiebers ausgeführt ist, wobei dieser Absperrschieber ein Verteiler (96) ist, von dem einer der Ausgänge mit der Hilfsleitung (104) zur Versorgung der Zündhilfseinrichtung (106) mit Brenngas verbunden ist, wobei dieser Ausgang in Abhängigkeit von dem Zustand des Betätigungsglieds (90) gezielt versorgt wird.
  19. Brenner nach Anspruch 17 und 18 in Kombination, dadurch gekennzeichnet, daß ein isolierter Leiter (120) zur Versorgung der Zündeinrichtung (118) im Innern der Hilfsleitung (104) zur Versorgung der Zündhilfseinrichtung (106) mit Brenngas vorgesehen ist.
EP96904911A 1995-03-03 1996-02-27 Vorrichtung zum koordinierten steuern von mindestens zwei gasströmen, und damit ausgerüstete brenner Expired - Lifetime EP0758438B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9502509A FR2731266B1 (fr) 1995-03-03 1995-03-03 Dispositif de commande coordonnee de l'ecoulement d'au moins deux gaz, et bruleur le comportant
FR9502509 1995-03-03
PCT/FR1996/000301 WO1996027762A1 (fr) 1995-03-03 1996-02-27 Dispositif de commande coordonnee de l'ecoulement d'au moins deux gaz, et brûleur le comportant

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EP0758438A1 EP0758438A1 (de) 1997-02-19
EP0758438B1 true EP0758438B1 (de) 2000-03-29

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EP (1) EP0758438B1 (de)
AR (1) AR001129A1 (de)
BR (1) BR9605922A (de)
CA (1) CA2189162A1 (de)
DE (1) DE69607424D1 (de)
FR (1) FR2731266B1 (de)
WO (1) WO1996027762A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803021B1 (fr) * 1999-12-27 2002-05-24 Soudure Autogene Francaise Chalumeau oxy-combustible

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049813B2 (ja) * 1980-08-21 1985-11-05 清二 加川 火口
DE3419970A1 (de) * 1984-05-29 1984-12-06 Daimler-Benz Ag, 7000 Stuttgart Handbrenner zum autogenschweissen

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BR9605922A (pt) 1997-11-18
EP0758438A1 (de) 1997-02-19
AR001129A1 (es) 1997-09-24
CA2189162A1 (fr) 1996-09-12
FR2731266A1 (fr) 1996-09-06
DE69607424D1 (de) 2000-05-04
WO1996027762A1 (fr) 1996-09-12
FR2731266B1 (fr) 1997-05-23

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