ATE7424T1 - BURNER LANCE WITH DEVICE TO PROTECT AGAINST BACK-FLOW, GAS BACKFLOW AND FORMATION OF HAZARDOUS GAS MIXTURES. - Google Patents

BURNER LANCE WITH DEVICE TO PROTECT AGAINST BACK-FLOW, GAS BACKFLOW AND FORMATION OF HAZARDOUS GAS MIXTURES.

Info

Publication number
ATE7424T1
ATE7424T1 AT81400738T AT81400738T ATE7424T1 AT E7424 T1 ATE7424 T1 AT E7424T1 AT 81400738 T AT81400738 T AT 81400738T AT 81400738 T AT81400738 T AT 81400738T AT E7424 T1 ATE7424 T1 AT E7424T1
Authority
AT
Austria
Prior art keywords
gas
intake
flow
formation
protect against
Prior art date
Application number
AT81400738T
Other languages
German (de)
Inventor
Philippe Visage
Original Assignee
Ets. R. Dube S.A.
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 Ets. R. Dube S.A. filed Critical Ets. R. Dube S.A.
Application granted granted Critical
Publication of ATE7424T1 publication Critical patent/ATE7424T1/en

Links

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
    • F23D14/46—Details
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • F23D14/825—Preventing flashback or blowback using valves

Landscapes

  • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lighters Containing Fuel (AREA)

Abstract

1. A blowtorch (1) comprising means (2) for the intake of a combustible gas and means (3) for the intake of a combustion gas, the pressure of this gas being greater than that of the combustible gas ; means (4, 5) for controlling the flow of these gases, arranged in the said means for intake ; means (6) for ensuring the mixing of the said gases ; means (7) for the outflow of the said gaseous mixture to the burner or nozzle (8) of the said blowtorch ; and two non-return valves (9, 10) arranged respectively in each of the means for the intake of gas, characterised in that the non-return valve (9) which is arranged in the means for the intake of the combustible gas is placed downstream of the corresponding means of control (4), and in that a means (11), such as a metallic sinter, for suppressing a flame, is arranged in the means for the intake of the combustible gas, between the non-return valve (9) and the means for mixing, in the immediate vicinity of the latter components.
AT81400738T 1980-05-08 1981-05-08 BURNER LANCE WITH DEVICE TO PROTECT AGAINST BACK-FLOW, GAS BACKFLOW AND FORMATION OF HAZARDOUS GAS MIXTURES. ATE7424T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8010326A FR2482259B1 (en) 1980-05-08 1980-05-08 TORCH WITH PROTECTION AGAINST INDOOR IGNITIONS, GAS RETURN AND DANGEROUS GAS MIXTURE CREATIONS
EP81400738A EP0040148B1 (en) 1980-05-08 1981-05-08 Burner torch with a device for the protection against flasback, backflow of gas and production of dangerous gaseous mixtures

Publications (1)

Publication Number Publication Date
ATE7424T1 true ATE7424T1 (en) 1984-05-15

Family

ID=9241772

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81400738T ATE7424T1 (en) 1980-05-08 1981-05-08 BURNER LANCE WITH DEVICE TO PROTECT AGAINST BACK-FLOW, GAS BACKFLOW AND FORMATION OF HAZARDOUS GAS MIXTURES.

Country Status (4)

Country Link
EP (1) EP0040148B1 (en)
AT (1) ATE7424T1 (en)
DE (1) DE3163468D1 (en)
FR (1) FR2482259B1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR344531A (en) * 1904-07-02 1904-11-07 Paul Charles Dumesml Gas torch
FR527827A (en) * 1920-12-01 1921-10-31 Ernest Preston Prator Oxy-acetylene torch
FR592979A (en) * 1924-04-18 1925-08-13 Improvements with oxy-acetylene torches or the like
FR609335A (en) * 1925-04-23 1926-08-12 Improvements with oxyacetylene torches or the like
FR756283A (en) * 1932-07-13 1933-12-07 Linde Air Prod Co Welding torch improvements
US2611424A (en) * 1948-07-17 1952-09-23 Smith Welding Equipment Corp Pressure-operated antibackflow device for cutting torches
FR1336491A (en) * 1962-09-19 1963-08-30 Safety system for torches and autogenous welding devices
FR1453621A (en) * 1965-11-10 1966-06-03 Messer Griesheim Gmbh Injection torch, fitted with interchangeable inserts for welding or cutting
FR1480261A (en) * 1966-03-29 1967-05-12 Development of anti-backfire devices for autogenous welding and cutting installations and for metallization gun torches
CH472632A (en) * 1967-11-04 1969-05-15 Mueller Max Flame arrester in the oxygen and fuel gas supply lines of a welding or cutting torch
FR2235622A5 (en) * 1973-06-29 1975-01-24 Atlantique Chantiers Oxy-acetylene burner for flame cutting of metals - with spring-loaded non-return valve on oxygen injector

Also Published As

Publication number Publication date
FR2482259B1 (en) 1986-11-21
DE3163468D1 (en) 1984-06-14
EP0040148B1 (en) 1984-05-09
FR2482259A1 (en) 1981-11-13
EP0040148A1 (en) 1981-11-18

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEIH Change in the person of patent owner
REN Ceased due to non-payment of the annual fee