EP0550051B1 - Chalumeau à découper d'une machine d'oxycoupage pourvu d'un dispositif d'allumage interne - Google Patents

Chalumeau à découper d'une machine d'oxycoupage pourvu d'un dispositif d'allumage interne Download PDF

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Publication number
EP0550051B1
EP0550051B1 EP92122076A EP92122076A EP0550051B1 EP 0550051 B1 EP0550051 B1 EP 0550051B1 EP 92122076 A EP92122076 A EP 92122076A EP 92122076 A EP92122076 A EP 92122076A EP 0550051 B1 EP0550051 B1 EP 0550051B1
Authority
EP
European Patent Office
Prior art keywords
fuel gas
oxygen
heating oxygen
cutting machine
ignition
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
EP92122076A
Other languages
German (de)
English (en)
Other versions
EP0550051A2 (fr
EP0550051A3 (en
Inventor
Werner Dipl.-Ing. Görde
Manfred Dipl.-Ing. Greifzu
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.)
GCE GmbH
Original Assignee
GCE Rhoena Autogengeraete GmbH
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 GCE Rhoena Autogengeraete GmbH filed Critical GCE Rhoena Autogengeraete GmbH
Priority to CA002096405A priority Critical patent/CA2096405A1/fr
Priority to US08/083,462 priority patent/US5393223A/en
Publication of EP0550051A2 publication Critical patent/EP0550051A2/fr
Publication of EP0550051A3 publication Critical patent/EP0550051A3/de
Application granted granted Critical
Publication of EP0550051B1 publication Critical patent/EP0550051B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F23D14/38—Torches, e.g. for brazing or heating
    • F23D14/42—Torches, e.g. for brazing or heating for cutting

Definitions

  • the invention relates to a machine cutting torch Internal ignition device according to the preamble of claim 1.
  • a cutting oxygen channel are feeders, i.e. cables on threaded connections for fuel gas and / or heating oxygen provided with a fuel gas and oxygen supply source are connected.
  • the known cutting torch has also a separate threaded connector that leads to a fuel gas / oxygen mixture feed opening into the cutting oxygen channel flows.
  • the fuel gas-oxygen mixture provides that Ignition gas.
  • At the cutting oxygen channel is an electrical Ignition device downstream of the junction of the fuel gas-oxygen mixture feed arranged.
  • the fuel gas-oxygen mixture is outside the burner body in a mixing point generated, which is designed as an injector.
  • the injector is Part of an ignition gas quantity control device, the immediate at supply sources for fuel gas and heating oxygen connected. This is supposed to be one of the setting of Cutting torch heating gases independent and unaffected
  • the amount of ignition gas can be supplied to the ignition point (DE-OS 35 27 955).
  • the ignition gas quantity control device mentioned in includes Branch lines to the injector, the heating oxygen as well Lead fuel gas, a solenoid valve and a pressure regulator.
  • the pressure regulator is via a connection T-piece to a heating oxygen supply source or to a Fuel gas supply source connected.
  • To the cutting torch is still a cutting oxygen line via a threaded connector attached, which via a regulating and / or control device connected to the cutting oxygen supply source is.
  • the supply of the fuel gas-oxygen mixture as Ignition gas thus takes place parallel to the supply of the fuel gas, the heating oxygen and the cutting oxygen to the cutting torch. This is a separate line for the ignition gas provided that in practice is designed as a hose.
  • Such hoses are for the ignition gas supply or Suitable fuel gas supply, however, can still be an accident risk not be excluded if beyond the usual long distances the pilot gas or fuel gas mixture to the cutting torch is fed. Furthermore, the equipment expenditure for the Ignition gas quantity control device considerably.
  • the separate pilot gas quantity control device in which the ignition gas is formed and the for this purpose essentially the mixer for mixing the pilot gas and the ignition oxygen to the ignition gas mixture, pressure regulator for the ignition oxygen and the ignition gas, solenoid valves for switching the pilot fuel gas and the pilot oxygen on and off includes parallel to the fuel gas and heating oxygen supply and cutting oxygen supply to the cutting torch is arranged occurs due to the larger amount and / or the higher pressure of the latter fuel gas and heating oxygen supply the problem that the small amount or Ignition gas mixture flowing under low pressure the cutting nozzle reached relatively late. This is particularly the case with Flame cutting machines with a variety of cutting torches annoying because the spark only depends on the last current quantity of the pilot gas mixture of a burner is generated may be (DE-PS 38 27 750).
  • control or regulating device for ignition gases designed so that the pilot gas mixture with compared to the required Quantity or the required pressure of a larger quantity and / or greater pressure flows to the cutting torch and only through one near the cutting torch or in the cutting torch arranged control or regulating element to the required Amount or the required pressure is set.
  • the steering- or control element can be designed as a fine metering valve be. It can also be implemented as an orifice with a metering hole be.
  • the input side can be in front of the mixer A fine metering valve in the fuel gas line for optimization the amount of fuel gas may be arranged, the input side at least one solenoid valve is arranged in front of the fine metering valve is.
  • Actuators can be assigned to the fine metering valve be dependent on a given Mixing ratio or a predetermined amount of the pilot gas mixture are adjustable by a control unit.
  • the fundamental disadvantages of the ignition gas mixture supply to the Cutting torch parallel to the fuel gas and heating oxygen as well as cutting oxygen are not solved.
  • EP-A-0 432 522 discloses similar to the preamble of the present Claim 1 a machine cutting torch with internal ignition on a cutting oxygen channel that is connected to a Mixing point forming the ignition gas is connected, the Mixing point via at least one heating oxygen solenoid valve a heating oxygen source can be connected and via a Fuel gas solenoid valve can be connected to a fuel gas line and the machine cutting torch connecting piece for Fuel gas, for heating oxygen and for cutting oxygen.
  • the mixing point is therefore via the fuel gas solenoid valve with the connecting piece for fuel gas and via the heating oxygen solenoid valve with the connector for heating oxygen connected.
  • the present invention has for its object a Machine cutting torch with internal ignition device at the beginning mentioned genus so that the technical equipment Reduced effort for the overall arrangement of the flame cutting machine and operational security is increased.
  • the machine torch is characterized in that not just the mixing point for the pilot gas in the valve body is housed, but that at least also the heating oxygen pressure reducing element as a screen or screens and the fuel gas reducing element also as an orifice are integral parts of the valve body and directly in the valve body with its connecting piece in gas-conducting Connect.
  • the ignition gas is not mixed more in front of the burner, but within the valve body of the Torch body, being by the regulating pressure reducer for heating oxygen integrated in the burner body, the pilot gas regardless of different inlet pressures of the Brenners is regulated.
  • the machine cutting torch points as Gas supply thus only connecting piece for the fuel gas, for the heating oxygen and for the cutting oxygen, however no connection for ignition gas. There is no hose, is fed to the machine cutting torch with the pilot gas.
  • the machine cutting torch is proportionate in terms of device technology not very expensive, but reliable.
  • the solenoid valves in the machine cutting torch not only the mix, but also the control the ignition process in the machine cutting torch. Because the components mentioned within the machine cutting torch are protected against Damage.
  • a finer level regulation can thereby according to claim 2 can be achieved that three heating oxygen pressure reducing, flow parallel panels are provided, which one solenoid valve is connected upstream.
  • the panels can each after cutting task by a CNC control individually or be selected together.
  • a needle valve is arranged.
  • the supply of the pilot gas mixture into the cutting oxygen channel of the machine cutting torch and the ignition electrical ignition devices are conventional.
  • Prefers is a model glow plug as an internal ignition device in one Burner head used, as they otherwise for the aircraft model is used, which is therefore inexpensive practically everywhere is available.
  • the machine cutting torch further comprises a burner head 7, which has a not shown Tube can be connected to the valve body and in the a cutting oxygen channel 8 opens.
  • a pilot gas hole 9 for pilot gas supply To the cutting oxygen channel leads a pilot gas hole 9 for pilot gas supply.
  • a model construction spark plug is located at the junction of the pilot gas hole 10 in connection with the cutting oxygen channel.
  • a fuel gas / fuel mixture feed in the Burning head 7 of the machine cutting torch is indicated at 11. It also starts from within the valve body housed heating gas injector 12 from.
  • One in the drawing Not shown needle valve in the valve body can in a supply of the fuel gas to the injector 12 for heating flame regulation be provided.
  • An injector 14 is formed integrally in the valve body, in which the ignition gas is mixed and therefore generally as Mixing point of the ignition gas is called.
  • To supply the Injector 14 for the ignition gas mixture formation with heating oxygen it is branched off from the heating oxygen supply and via a solenoid valve and an orifice 6 with metering openings fed to the injector 14.
  • There can be an arrangement of 3 apertures be provided with metering openings through solenoid valves can be selected using a CNC control.
  • a feed of the Fuel gas to the injector 14 takes place via a solenoid valve 15 and an orifice or needle valve 16 with a fixed setting.
  • the embodiment of the machine cutting torch according to FIG. 2 differs from that of FIG. 1 in respect the heating oxygen supply 24 for the ignition mixture formation.
  • a pressure reducer 17 switched on instead of an orifice in the heating oxygen supply, the the heating oxygen pressure in the injector 14 regardless of fluctuations in the heating oxygen pressure at the Connection piece 2 regulated.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Gas Burners (AREA)

Claims (5)

  1. Chalumeau à découper de machine d'oxycoupage, doté d'un dispositif d'allumage intérieur sur un canal d'oxygène de coupe, qui est en communication avec un injecteur en tant que zone de mélange formant le gaz d'allumage, la zone de mélange pouvant être raccordée, par l'intermédiaire d'au moins une soupape électromagnétique d'oxygène de chauffage, à une source d'oxygène de chauffage, et pouvant être raccordée, par l'intermédiaire de moyens de réduction de la pression du gaz de combustion et d'une soupape de gaz de combustion, à une conduite de gaz de combustion, et le chalumeau à découper de machine d'oxycoupage présentant sur un corps de soupape, des raccords de branchement pour du gaz de combustion, pour de l'oxygène de chauffage et pour de l'oxygène de coupe, caractérisé en ce que l'injecteur (14) de formation du gaz d'allumage, au moins un diaphragme de réduction de la pression de l'oxygène de chauffage (6) et un diaphragme de réduction de la pression du gaz de combustion (16) sont des parties intégrantes du corps de soupape (4), en ce que les soupapes électromagnétiques (5, 15) sont logées dans le corps de soupape (4), et en ce que l'injecteur (14) est relié au raccord de branchement (3) pour le gaz de combustion, par l'intermédiaire du diaphragme de réduction de la pression du gaz de combustion (16) et de la soupape électromagnétique de gaz de combustion (15), et est relié au raccord de branchement (2) pour l'oxygène de chauffage, par l'intermédiaire du diaphragme de réduction de la pression de l'oxygène de chauffage (6) et de la soupape électromagnétique d'oxygène de chauffage (5).
  2. Chalumeau à découper de machine d'oxycoupage selon la revendication 1, caractérisé en ce que sont prévus trois diaphragmes de réduction de la pression de l'oxygène de chauffage (18, 19, 20), montés en parallèle sur le plan de l'écoulement du fluide, et en amont de chacun desquels est monté respectivement une soupape électromagnétique (15, 16, 17).
  3. Chalumeau à découper de machine d'oxycoupage selon la revendication 1, caractérisé en ce qu'à la place du diaphragme de réduction de la pression de l'oxygène de chauffage (6) est prévu un réducteur à régulation de la pression de l'oxygène de chauffage (17).
  4. Chalumeau à découper de machine d'oxycoupage selon l'une des revendications précédentes, caractérisé en ce que dans le chalumeau à découper de la machine d'oxycoupage, entre l'injecteur (14) et le raccord de branchement (3), est disposée une soupape à pointeau pour le gaz de combustion, à la place du diaphragme (16).
  5. Chalumeau à découper de machine d'oxycoupage selon l'une des revendications précédentes, caractérisé par une bougie (10) de modélisme en guise de dispositif d'allumage intérieur dans une tête de chalumeau (7).
EP92122076A 1991-12-28 1992-12-28 Chalumeau à découper d'une machine d'oxycoupage pourvu d'un dispositif d'allumage interne Expired - Lifetime EP0550051B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002096405A CA2096405A1 (fr) 1992-12-28 1993-05-17 Machine pour chalumeau de coupage, dotee d'un dispositif d'allumage interne
US08/083,462 US5393223A (en) 1992-12-28 1993-06-30 Cutting torch machine having an internal ignition device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4143144A DE4143144C2 (de) 1991-12-28 1991-12-28 Maschinenschneidbrenner mit Innenzündeinrichtung
DE4143144 1991-12-28

Publications (3)

Publication Number Publication Date
EP0550051A2 EP0550051A2 (fr) 1993-07-07
EP0550051A3 EP0550051A3 (en) 1993-10-20
EP0550051B1 true EP0550051B1 (fr) 1998-12-02

Family

ID=6448221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92122076A Expired - Lifetime EP0550051B1 (fr) 1991-12-28 1992-12-28 Chalumeau à découper d'une machine d'oxycoupage pourvu d'un dispositif d'allumage interne

Country Status (2)

Country Link
EP (1) EP0550051B1 (fr)
DE (2) DE4143144C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420935C1 (de) * 1994-06-16 1995-07-20 Messer Griesheim Schweistechni Schneidbrenner
WO2009126631A2 (fr) 2008-04-08 2009-10-15 Victor Equipment Company Chalumeau soudeur perfectionné
WO2016008506A1 (fr) * 2014-07-14 2016-01-21 Gce Holding Ab Système de chalumeau d'oxycoupage d'une machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3516511A1 (de) * 1985-05-08 1986-11-13 Messer Griesheim Gmbh, 6000 Frankfurt Schneidbrenner
DE3527955A1 (de) * 1985-08-03 1987-02-12 Messer Griesheim Gmbh Schneidbrenner
DE3624504C1 (en) * 1986-07-19 1988-02-11 Messer Griesheim Gmbh Cutting torch with a nozzle, in particular block cutting nozzle
DE3827750A1 (de) * 1988-08-16 1990-04-19 Messer Griesheim Gmbh Steuer- oder regelvorrichtung fuer zuendgase
DE3941370A1 (de) * 1989-12-15 1991-06-20 Messer Griesheim Gmbh Verfahren zum zuenden der hauptflammengase von einzelnen schneidbrennern

Also Published As

Publication number Publication date
DE59209578D1 (de) 1999-01-14
EP0550051A2 (fr) 1993-07-07
DE4143144A1 (de) 1993-07-01
EP0550051A3 (en) 1993-10-20
DE4143144C2 (de) 1996-06-13

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