DE1114067B - Safety valve with any sensitivity - Google Patents

Safety valve with any sensitivity

Info

Publication number
DE1114067B
DE1114067B DEH35070A DEH0035070A DE1114067B DE 1114067 B DE1114067 B DE 1114067B DE H35070 A DEH35070 A DE H35070A DE H0035070 A DEH0035070 A DE H0035070A DE 1114067 B DE1114067 B DE 1114067B
Authority
DE
Germany
Prior art keywords
safety valve
valve
collar
sealing member
sensitivity
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.)
Pending
Application number
DEH35070A
Other languages
German (de)
Inventor
Dipl-Ing Eberhard Habert
Erich Strempel
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.)
ERICH STREMPEL
Original Assignee
ERICH STREMPEL
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 ERICH STREMPEL filed Critical ERICH STREMPEL
Priority to DEH35070A priority Critical patent/DE1114067B/en
Publication of DE1114067B publication Critical patent/DE1114067B/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08—Safety 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
    • F16K17/087—Safety 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 bellows

Description

Sicherheitsventil mit beliebig hoher Empfindlichkeit Die Erfindung betrifft ein Sicherheitsventil mit einem axial dehnbaren Dichtungsglied, z. B. einem Faltenbalg, das außen vom abzusicherndenDruck beaufschlagt ist und dessen stimseitige Abschlußfläche den Ventilkegel trägt. Die Erfindung besteht darin, daß die Abschlußfläche einen Kragen hat, der gegen das umgebende Ventilgehäuse so viel Spiel hat, daß er sich darin reibungslos bewegen kann, und der zusammen mit dem Ventilgehäuse und dem Dichtungsglied eine Bremskammer bildet.Safety valve with arbitrarily high sensitivity The invention relates to a safety valve with an axially expandable sealing member, e.g. B. a Bellows to which the pressure to be protected is applied and its front side End face carries the valve cone. The invention consists in that the end surface has a collar that has so much play against the surrounding valve housing that it can move smoothly in it, and together with the valve housing and the sealing member forms a brake chamber.

In der Abbildung ist die Ausführung eines solchen Sicherheitsventils schematisch dargestellt. Das Sicherheitsventil ist über den Anschluß 1 mit der unter Druck stehenden Betriebsanlage verbunden. Der Druck des Betriebsmittels lastet auf der Abschlußfläche 5, an der der Kegel 2 befestigt ist. Die Weichdichtungen 3 sind bei normalem Betriebsdruck auf den im oberen Teil des Abflußstutzens 4 befestigten Sitz gepreßt, und zwar durch die Feder 10. Die Federspannung ist mit Hilfe des einschraubbaren Federstellers 11 so eingestellt, daß sie beim gewünschten Abblasedruck von dem auf der Abschlußfläche 5 wirkenden Druck überwunden wird. Der Federbalg 9 grenzt einen Raum 8 gegen den Atmosphärendruck ab, der im Federgehäuse herrscht. Der Raum 8 ist ebenfalls mit dem Betriebsmittel gefüllt, das sich bei der Bewegung des Ventilkegels 2 über das Spiel 6 zwischen dem Kragen an der Abschlußfläche 5 und dem Gehäuse 13 oder auch über besondere öffnungen in dem Kragen ausgleicht. Das Spiel und die öffnungen wirken also wie eine Flüssigkeitsbremse. Das Spiel ist so gehalten, daß die notwendige Führung gesichert ist, aber möglichst keine Reibung entsteht. Die Außenwand 13 des als Bremskammer dienenden Raumes wird vom Ventilgehäuse gebildet, das im oberen Teil durch ein irtit dem Gehäuse in fester Schraub- oder sonstiger Verbindung stehendes Anschlußstück 12 verschlossen ist, an dem gleichzeitig der Federbalg 9 befestigt ist. Eine Hubbegrenzung 7 begrenzt den Hub des Ventilkegels so, daß keine unzulässige Belastung der Feder und des Federbalgens entsteht. Gleichzeitig dient die als Zylinder ausgebildete Hubbegrenzung zur Führung der Belastungsfeder.The figure shows the design of such a safety valve. The safety valve is connected to the pressurized plant via port 1. The pressure of the operating medium loads on the end surface 5 to which the cone 2 is attached. At normal operating pressure, the soft seals 3 are pressed onto the seat fastened in the upper part of the drain connection 4, namely by the spring 10. The spring tension is set with the aid of the screw-in spring actuator 11 so that it differs from that acting on the end surface 5 at the desired blow-off pressure Pressure is overcome. The bellows 9 delimits a space 8 against the atmospheric pressure that prevails in the spring housing. The space 8 is also filled with the operating medium which, when the valve cone 2 moves, compensates for itself via the clearance 6 between the collar on the end surface 5 and the housing 13 or via special openings in the collar. The play and the openings thus act like a fluid brake. The game is kept in such a way that the necessary guidance is secured, but as little friction as possible occurs. The outer wall 13 of the space serving as the brake chamber is formed by the valve housing, which is closed in the upper part by a connecting piece 12 which is firmly screwed or otherwise connected to the housing and to which the bellows 9 is fastened at the same time. A stroke limiter 7 limits the stroke of the valve cone in such a way that there is no inadmissible load on the spring and the bellows. At the same time, the stroke limiter, designed as a cylinder, serves to guide the loading spring.

Claims (2)

PATENTANSPRÜCHE: 1. Sicherheitsventil mit einem axial dehnbaren Dichtungsglied, z. B. einem Faltenbalg, das außen vom abzusichemden Druck beaufschlagt ist und dessen stimseitige Abschlußfläche den Ventilkegel trägt, dadurch gekennzeichnet, daß die Abschlußfläche (5) einen Kragen hat, der gegen das umgebende Ventilgehäuse (13) so viel Spiel (6) hat, daß er sich darin reibungslos bewegen kann, und der zusammen mit dem Ventflgehäuse (13) und dem Dichtungsglied (9) eine Bremskammer (8) bildet. PATENT CLAIMS: 1. Safety valve with an axially expandable sealing member, e.g. B. a bellows which is acted upon from the outside pressure and whose end face carries the valve cone, characterized in that the end face (5) has a collar which has so much play (6) against the surrounding valve housing (13) that it can move smoothly in it, and which, together with the valve housing (13) and the sealing member (9), forms a brake chamber (8) . 2. Sicherheitsventil nach Anspruch 1, dadurch gekennzeichnet, daß in dem Kragen Drosselöffnungen angeordnet sind. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 842 574, 886 990; österreichische Patentschrift Nr. 114 752. 2. Safety valve according to claim 1, characterized in that throttle openings are arranged in the collar. Considered publications: German Patent Specifications No. 842 574, 886 990; Austrian patent specification No. 114 752.
DEH35070A 1958-12-10 1958-12-10 Safety valve with any sensitivity Pending DE1114067B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH35070A DE1114067B (en) 1958-12-10 1958-12-10 Safety valve with any sensitivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH35070A DE1114067B (en) 1958-12-10 1958-12-10 Safety valve with any sensitivity

Publications (1)

Publication Number Publication Date
DE1114067B true DE1114067B (en) 1961-09-21

Family

ID=7152591

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH35070A Pending DE1114067B (en) 1958-12-10 1958-12-10 Safety valve with any sensitivity

Country Status (1)

Country Link
DE (1) DE1114067B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022941A1 (en) * 1979-07-19 1981-01-28 Bühler AG Safety valve for blower

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT114752B (en) * 1927-10-22 1929-10-25 Elektr App Fr Sauter A G Fab Safety valve.
DE842574C (en) * 1950-07-02 1952-06-30 Mueller & Co Schwelmer Eisen Device on overflow valves
DE886990C (en) * 1950-09-08 1953-08-20 Gen Mecaniques Appliques S I G Spring-loaded pressure regulating valve with plunger and overflow line

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT114752B (en) * 1927-10-22 1929-10-25 Elektr App Fr Sauter A G Fab Safety valve.
DE842574C (en) * 1950-07-02 1952-06-30 Mueller & Co Schwelmer Eisen Device on overflow valves
DE886990C (en) * 1950-09-08 1953-08-20 Gen Mecaniques Appliques S I G Spring-loaded pressure regulating valve with plunger and overflow line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022941A1 (en) * 1979-07-19 1981-01-28 Bühler AG Safety valve for blower

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