DE669847C - Device for protection against the escape of creeping oxygen in gas lines leading from the gas generator to the point of use in autogenous welding systems - Google Patents

Device for protection against the escape of creeping oxygen in gas lines leading from the gas generator to the point of use in autogenous welding systems

Info

Publication number
DE669847C
DE669847C DEW94904D DEW0094904D DE669847C DE 669847 C DE669847 C DE 669847C DE W94904 D DEW94904 D DE W94904D DE W0094904 D DEW0094904 D DE W0094904D DE 669847 C DE669847 C DE 669847C
Authority
DE
Germany
Prior art keywords
membrane
oxygen
gas
valve
creeping
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
DEW94904D
Other languages
German (de)
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.)
ERNST WEESE
Original Assignee
ERNST WEESE
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 ERNST WEESE filed Critical ERNST WEESE
Priority to DEW94904D priority Critical patent/DE669847C/en
Application granted granted Critical
Publication of DE669847C publication Critical patent/DE669847C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C4/00Flame traps allowing passage of gas but not of flame or explosion wave
    • A62C4/02Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Diaphragms And Bellows (AREA)

Description

Vorrichtung zum Schutz gegen Rücktritt von schleichendem Sauerstoff in vom Gasentwickler zur Verbrauchsstelle führenden Gasleitungen bei autogenen Schweißanlagen Im Patent 626 870 ist eine Vorrichtung gegen Rücktritt von Sauerstoff angegeben, bei der eine Gummimembran verwendet wird.Device for protection against the withdrawal of oxygen creeping in gas lines leading from the gas generator to the point of use in autogenous welding systems. Patent 626 870 specifies a device against the withdrawal of oxygen in which a rubber membrane is used.

Bekannt sind Vorrichtungen, durch welche eine Ebenhaltung der Membran bei Schwingungsplatten erreicht wird. Bekannt sind ferner Vorrichtungen für Gasdruckregler, bei welchen der Nachteil der Membran, daß sie infolge Alterns undicht wird, dadurch wirkungslos gemacht wird, daß eine Quecksilberschicht über die Membran gelegt wird. Schließlich sind Doppelmembranen bekannt zum Regeln von Gasbrennern mit Zündflamme, bei welchen die Ausdehnung der Membran infolge Erhitzung der in ihr befindlichen Luft ein Hahnküken hebt.Devices are known by means of which the membrane is kept level is reached with vibration plates. Devices for gas pressure regulators are also known, in which the disadvantage of the membrane that it leaks due to aging, thereby is made ineffective that a mercury layer is placed over the membrane. Finally, double diaphragms are known for regulating gas burners with a pilot flame, in which the expansion of the membrane as a result of heating of the membrane inside it Air lifts a cock chick.

Doppelmembranen mit inneren Hohlräumen, welche mit Luft, Gas oder Flüssigkeit gefüllt sind, haben ferner als Ventile Verwendung gefunden, um einen größeren Ventilhub zu erreichen und die Anschmiegsamkeit zu erhöhen.Double membranes with internal cavities, which with air, gas or Liquid filled, have also found use as valves to a to achieve greater valve lift and to increase the suppleness.

Um bei Undichtigkeit der Gummimembran infolge Alterns oder aus sonstigen Gründen den Rücktritt von Sauerstoff in den Entwickler zu verhindern, ohne daß @es bemerkt werden könnte, wird vorgeschlagen, an Stelle der ebenen Membran eine Doppelmembran einzubauen, welche nach der Zeichnung aus zwei Membranen besteht, zwischen denen sich gepreßte Luft befindet. An der Außenseite der -einen Membran ist ein Stift befestigt, an dessen Ende ein in die Verbrauchsleitung eingeschaltetes Ventil sitzt. Dieses Ventil ist so lange geöffnet, wie die beiden Membranscheiben durch die Preßluft auseinandergebogen sind. Wird eine der beiden Membranscheiben undicht, so strömt die Preßluft aus, die Membranscheiben werden infolge ihrer Spannung eben, und dadurch wird das Ventil geschlossen, so daß im Falle von Sauerstoffrücktritt in die Verbrauchsleitung der Sauerstoff nicht melu in den Entwickler strömen kann. Der Schweißer muß eine neue dichte Membran einbauen, um weiter arbeiten zu können.To avoid leaks in the rubber membrane due to aging or other Reasons to prevent the withdrawal of oxygen into the developer without @es could be noticed, it is proposed to use a double membrane instead of the flat membrane to be installed, which according to the drawing consists of two membranes, between which there is compressed air. There is a pin on the outside of the -a membrane attached, at the end of which sits a valve connected to the consumption line. This valve is open as long as the two membrane disks by the compressed air are bent apart. If one of the two membrane disks leaks, there is a flow the compressed air, the membrane disks are flat due to their tension, and thereby the valve is closed so that in the event of oxygen withdrawal into the consumption line the oxygen cannot flow melu into the developer. The welder has to be Install a new, tight membrane in order to be able to continue working.

Infolge Schwankens des Druckes des Acetylengases ändert sich die Gestalt der . Doppelmembran. Um diese Schwankung in geringen zulässigen Grenzen zu halten, können Gummibänder eingesetzt werden, welche bei Füllung der Membran mit Preßluft auseinandergezogen werden und im Falle von Undichtigkeiten einer Meinbranhaut die Zurückbildung der Doppelmembran in eine ebene Fläche noch mehr gewährleisten.Due to fluctuations in the pressure of the acetylene gas, the shape changes the . Double membrane. In order to keep this fluctuation within low permissible limits, rubber bands can be used, which when the membrane is filled with compressed air be pulled apart and in the case of leaks in a mybranch skin the Ensure that the double membrane regresses into a flat surface even more.

Die Membran kann aus einer ganz dünnen Gummihaut hergestellt werden, welche sich um Fremdkörper, welche zwischen Ventilsitz und Membran geraten, herumlegt, so daß die sonst auftretenden Undichtigkeiten infolge Störung durch Fremdkörper vermieden werden.The membrane can be made from a very thin rubber skin, which lies around foreign bodies that get between the valve seat and the diaphragm, so that the otherwise occurring leaks as a result of a malfunction Foreign bodies are avoided.

Die Doppelmembran ist ferner leicht be- weglich, so daß der Druckverlust des Acetylens beim Durchströmen des Membranventils viel geringer wird als bei einer anderen Membran.The double membrane is easy to load further movably, so that the pressure loss of the acetylene when it flows through the diaphragm valve is much lower than for other membrane.

In deY Zeichnung ist die Erfindung in einem Ausführungsbeispiel dargestellt. Durch die mit a bezeichnete Gaszuleitung strömt das Gas nach den in der Membranwiderlage angeordneten Löchern/ und drückt die Doppelmembrani,h nach unten, so daß das Gas durch die Löcher g treten und nach Anheben des Ventils d durch die Leitungen c, b und durch das durch die Doppelmembran in Offenstellung gehaltene Ventile zur Verbrauchsstelle gelangen kann.In the drawing, the invention is shown in one embodiment. The gas flows through the gas supply line marked a to the in the membrane abutment arranged holes / and presses the double membrane i, h downwards, so that the gas step through the holes g and after lifting the valve d through the lines c, b and through the valve held in the open position by the double membrane to the point of consumption can get.

Claims (1)

PATENTANSPL(UCII Vorrichtung zum Schutz gegen Rücktritt von schleichendem Sauerstoff in vom Gasentwickler zur Verbrauchsstelle führenden Gasleitungen bei autogenen Schweißanlagen, bei welcher Eine als Ventil wirkende Membran den Rücktritt des Sauerstoffs verhindert, nach Patent 626 87o, dadurch gekennzeichnet, daß zur Bildung .einer Doppelmembran die =als Ventil wirkende Membran (h) mit einer zweiten Membran (i) verbunden ist, an deren Außenseite der Körper ;eines in der Verbrauchsleitung eingeschalteten Ventils (e) befestigt ist, und daß der Innenraum der Doppelmembran mit Preßluft gefüllt ist, derart, daß bei gefüllter 'Membran das Ventil geöffnet ist.PATENTANSPL (UCII device to protect against withdrawal from creeping Oxygen in gas lines leading from the gas generator to the point of consumption autogenous welding systems, in which a membrane acting as a valve resigns of oxygen prevented, according to patent 626 87o, characterized in that for Formation of a double membrane, the membrane acting as a valve (h) with a second one Membrane (i) is connected, on the outside of which the body; one in the consumption line switched on valve (e) is attached, and that the interior of the double membrane is filled with compressed air, such that when the membrane is filled, the valve is opened is.
DEW94904D 1934-04-12 1934-04-12 Device for protection against the escape of creeping oxygen in gas lines leading from the gas generator to the point of use in autogenous welding systems Expired DE669847C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW94904D DE669847C (en) 1934-04-12 1934-04-12 Device for protection against the escape of creeping oxygen in gas lines leading from the gas generator to the point of use in autogenous welding systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW94904D DE669847C (en) 1934-04-12 1934-04-12 Device for protection against the escape of creeping oxygen in gas lines leading from the gas generator to the point of use in autogenous welding systems

Publications (1)

Publication Number Publication Date
DE669847C true DE669847C (en) 1939-01-05

Family

ID=7614216

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW94904D Expired DE669847C (en) 1934-04-12 1934-04-12 Device for protection against the escape of creeping oxygen in gas lines leading from the gas generator to the point of use in autogenous welding systems

Country Status (1)

Country Link
DE (1) DE669847C (en)

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