DE597093C - Safety valve - Google Patents

Safety valve

Info

Publication number
DE597093C
DE597093C DEH134321D DEH0134321D DE597093C DE 597093 C DE597093 C DE 597093C DE H134321 D DEH134321 D DE H134321D DE H0134321 D DEH0134321 D DE H0134321D DE 597093 C DE597093 C DE 597093C
Authority
DE
Germany
Prior art keywords
safety valve
valve
membrane
spring
loaded
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
DEH134321D
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.)
Hormann & Burchard
Original Assignee
Hormann & Burchard
Publication date
Priority to DEH134321D priority Critical patent/DE597093C/en
Application granted granted Critical
Publication of DE597093C publication Critical patent/DE597093C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
    • F16K17/085Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with diaphragm

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Description

SicherheitsventilSafety valve

Der Erfindungsgegenstand bezieht sich auf ein Sicherheitsventil für Druckbehälter aller Αι-ζ insbesondere für Acetylenentwickler, durch welches es möglich gemacht wird, einen efwa entstehenden Überdruck plötzlich selbsttätig abzulassen, um Explosionsgefahr mit Sicherheit zu vermeiden.The subject matter of the invention relates to a safety valve for pressure vessels of all Αι-ζ especially for acetylene developers, by which it is made possible, an efwa arising overpressure suddenly and automatically to avoid the risk of explosion with certainty.

Um dies zu erreichen, besteht das Kennzeichen der Erfindung darin, daß das federbelastete Sicherheitsventil von einer Membran getragen wird, die in der Ruhelage einen konzentrisch um das Sicherheitsventil angeordneten Ringkanal abschließt, so daß bei geringem Anheben des Sicherheitsventils die vom Behälterdruck belastete Fläche plötzlich vergrößert wird.To achieve this, the feature of the invention is that the spring-loaded Safety valve is carried by a membrane, which in the rest position a concentrically arranged around the safety valve closes the annular channel, so that at low If the safety valve is raised suddenly the area loaded by the container pressure is enlarged.

Diese bauliche Ausgestaltung bietet den Vorteil, daß durch geringen Überdruck zunächst nur das Sicherheitsventil angehoben wird, so daß der Überdruck in den durch die Membran abgeschlossenen Ringkanal eintreten kann. Da der Überdruck auf der Membran eine größere Angriffsfläche vorfindet, als sie durch das Sicherheitsventil geboten ist, wird der Überdruck die Membran plötzlich von ihrer Sitzfläche abheben und dabei das Sicherheitsventil mitreißen, so daß augenblicklich ein großer Querschnitt frei wird, durch den der Überdruck entweichen kann.This structural configuration offers the advantage that initially through a slight overpressure only the safety valve is raised, so that the overpressure in the through the membrane closed ring channel can enter. Since the overpressure on the Membrane finds a larger contact surface than offered by the safety valve is, the overpressure will suddenly lift the membrane from its seat and thereby drag the safety valve along, so that instantly a large cross-section is free through which the excess pressure can escape.

Auf der Zeichnung ist das neue Ventil an einem Ausführungsbeispiel in senkrechtem Schnitt dargestellt.In the drawing, the new valve is in an exemplary embodiment in the vertical Section shown.

Das Ventil besteht aus einem Druckeintrittsstutzen 1, der an ein mit Druckaustrittsstutzen 2 versehenes Gehäuse 3 angeschlossen ist. Die Bohrung des Stutzens 1 ragt in das Gehäuse 3 hinein und wird normalerweise durch eine an einer Ventilspindel 5 angeordneten Dichtungsscheibe 6 geschlossen gehalten, indem diese durch eine Feder 11 auf eine Sitzfläche 7 gepreßt wird. Um die Sitzfläche 7 herum und konzentrisch zu ihr ist eine zweite Sitzfläche 8 höhenunterschiedlich so angeordnet, daß ein Ringkanal 9 gebildet wird. Durch die Feder 11 wird ferner eine an der Spindel 5 starr befestigte und mit ihrem Rand in dem Gehäuse 3 fest eingespannte Membran 10 auf die Sitzfläche S gepreßt. Die Spannung der Feder 11 kann durch eine im Gehäuse 3 schraubbar angeordnete Mutter 12 geregelt werden. In der Mutter 12 ist eine die Spindel 5 in sich aufnehmende Büchse 13 verschiebbar angeordnet. Die Büchse 13 besitzt einen Schlitz 14, in welchem ein mit der Spindel 5 starr verbundener Stift 15 geführt ist. Die Büchse 13 ragt aus dem Gehäuse 3 heraus und ist mit einer Handhabe 16 versehen. Das Gehäuse 3 ist durch einen Deckel 17 abgeschlossen, der von der Büchse 13 durchdrungen wird, um Unbefugten ein Verstellen der Mutter 12 und damit der Spannkraft der Feder 11 unmöglich zu machen. Bemerkt sei noch, daß aus Sicherheitsgründen der Schlitz 14 zu dem Stift 11 so angeordnet ist, daß die Membran 10 und die Dichtungsscheibe 6 beim Ziehen an der Handhabe wohl von ihren Sitzen abgehoben, aber beim Niederdrücken der Handhabe 16 und damit der Büchse 13 nicht auf ihre Sitze 7, S gepreßt werden können. Dies hat zur Folge, daß die Betriebssicherheit des Ventils auch dann nicht beeinflußt werden kann, wenn die Handhabe 16 von unberufener Seite durch ein Gewicht belastet wird, weil der Abstand zwischen der Unterkante 18 der Handhabe 16 und dem Deckel 17, also der Hub der Büchse 13, um ein Geringes kleiner bemessen ist, als die nutzbare Länge des Schlitzes 14 ausmacht.The valve consists of a pressure inlet connector 1, which is connected to a housing 3 provided with a pressure outlet connector 2. The bore of the connecting piece 1 protrudes into the housing 3 and is normally kept closed by a sealing washer 6 arranged on a valve spindle 5 by being pressed onto a seat surface 7 by a spring 11. Around the seat 7 and concentrically to it, a second seat 8 is arranged at different heights so that an annular channel 9 is formed. By means of the spring 11, a membrane 10, which is rigidly attached to the spindle 5 and firmly clamped with its edge in the housing 3, is pressed onto the seat surface S. The tension of the spring 11 can be regulated by a nut 12 screwed in the housing 3. In the nut 12, a sleeve 13 which accommodates the spindle 5 is arranged displaceably. The sleeve 13 has a slot 14 in which a pin 15 rigidly connected to the spindle 5 is guided. The sleeve 13 protrudes from the housing 3 and is provided with a handle 16. The housing 3 is closed by a cover 17 through which the sleeve 13 penetrates in order to make it impossible for unauthorized persons to adjust the nut 12 and thus the tensioning force of the spring 11. It should also be noted that for safety reasons the slot 14 to the pin 11 is arranged so that the membrane 10 and the sealing washer 6 are lifted from their seats when the handle is pulled, but not open when the handle 16 and thus the sleeve 13 are pressed down their seats 7, S can be pressed. As a result, the operational safety of the valve cannot be influenced even if the handle 16 is loaded by a weight from the unskilled side, because the distance between the lower edge 18 of the handle 16 and the cover 17, i.e. the stroke of the sleeve 13, is dimensioned a little smaller than the usable length of the slot 14 makes.

Claims (1)

Patentanspruch:Claim: Sicherheitsventil für Druckbehälter aller Art, insbesondere für Acetylenentwickler, dadurch gekennzeichnet, daß das federbelastete Sicherheitsventil (6) von einer Membran (10) getragen wird, die in der Ruhelage einen konzentrisch um das Ventil (6) angeordneten Ringkanal (9) abschließt, so daß bei geringem Anheben des Ventils (6) die vom Behälterdruck belastete Fläche plötzlich vergrößert wird.Safety valve for all types of pressure vessels, especially for acetylene generators, characterized in that the spring-loaded safety valve (6) is carried by a membrane (10) which is in the Rest position closes off an annular channel (9) arranged concentrically around the valve (6), so that when the valve (6) is raised slightly, the area loaded by the container pressure is suddenly enlarged.
DEH134321D Safety valve Expired DE597093C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH134321D DE597093C (en) Safety valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH134321D DE597093C (en) Safety valve

Publications (1)

Publication Number Publication Date
DE597093C true DE597093C (en) 1934-05-17

Family

ID=7177034

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH134321D Expired DE597093C (en) Safety valve

Country Status (1)

Country Link
DE (1) DE597093C (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416855A (en) * 1943-11-09 1947-03-04 Phillips Petroleum Co High-pressure diaphragm relief valve
US2585575A (en) * 1945-09-15 1952-02-12 Nedergaa Hans Christie Richard Safety valve with spring loaded diaphragm
DE1005800B (en) * 1955-04-21 1957-04-04 Endress K G Pressure relief valve for air and other gases
US2871877A (en) * 1953-12-16 1959-02-03 Beaton & Cadwell Mfg Co Pressure relief valve
US2880750A (en) * 1954-04-01 1959-04-07 Bendix Aviat Corp Valve
DE1068969B (en) * 1959-11-12
DE1095074B (en) * 1956-11-29 1960-12-15 Hartlage Maschinenfabrik U Eis Overpressure safety valve
DE1180978B (en) * 1961-05-20 1964-11-05 Hans List Dipl Ing Dr Techn Pressure regulator for pressure accumulator
US3189040A (en) * 1962-01-31 1965-06-15 F C Kingston Company Relief valve
DE1211883B (en) * 1961-04-12 1966-03-03 Medicinsk Apparatservice Ab Spring-loaded pressure relief valve, especially for breathing equipment
FR2401336A2 (en) * 1977-08-25 1979-03-23 Cyphelly Ivan J DEVICE FOR VARIING WITH LITTLE LOSS THE DISCHARGE CURRENT OF A DISPLACEMENT PUMP BY PERIODIC INTERRUPTION OF THIS DISCHARGE CURRENT
FR2503319A1 (en) * 1981-04-03 1982-10-08 Bricard Safety valve for water heater - has free internal function pressure release even if exterior handle is blocked
DE19626323A1 (en) * 1996-07-01 1998-01-08 Wabco Gmbh Safety valve unit for unit working with pressure means

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068969B (en) * 1959-11-12
US2416855A (en) * 1943-11-09 1947-03-04 Phillips Petroleum Co High-pressure diaphragm relief valve
US2585575A (en) * 1945-09-15 1952-02-12 Nedergaa Hans Christie Richard Safety valve with spring loaded diaphragm
US2871877A (en) * 1953-12-16 1959-02-03 Beaton & Cadwell Mfg Co Pressure relief valve
US2880750A (en) * 1954-04-01 1959-04-07 Bendix Aviat Corp Valve
DE1005800B (en) * 1955-04-21 1957-04-04 Endress K G Pressure relief valve for air and other gases
DE1095074B (en) * 1956-11-29 1960-12-15 Hartlage Maschinenfabrik U Eis Overpressure safety valve
DE1211883B (en) * 1961-04-12 1966-03-03 Medicinsk Apparatservice Ab Spring-loaded pressure relief valve, especially for breathing equipment
DE1180978B (en) * 1961-05-20 1964-11-05 Hans List Dipl Ing Dr Techn Pressure regulator for pressure accumulator
US3189040A (en) * 1962-01-31 1965-06-15 F C Kingston Company Relief valve
FR2401336A2 (en) * 1977-08-25 1979-03-23 Cyphelly Ivan J DEVICE FOR VARIING WITH LITTLE LOSS THE DISCHARGE CURRENT OF A DISPLACEMENT PUMP BY PERIODIC INTERRUPTION OF THIS DISCHARGE CURRENT
FR2503319A1 (en) * 1981-04-03 1982-10-08 Bricard Safety valve for water heater - has free internal function pressure release even if exterior handle is blocked
DE19626323A1 (en) * 1996-07-01 1998-01-08 Wabco Gmbh Safety valve unit for unit working with pressure means
DE19626323B4 (en) * 1996-07-01 2007-08-02 Wabco Gmbh Safety valve device
DE19626323C5 (en) * 1996-07-01 2009-01-29 Wabco Gmbh Safety valve device

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