DE803139C - Safety valve - Google Patents
Safety valveInfo
- Publication number
- DE803139C DE803139C DEL532A DEL0000532A DE803139C DE 803139 C DE803139 C DE 803139C DE L532 A DEL532 A DE L532A DE L0000532 A DEL0000532 A DE L0000532A DE 803139 C DE803139 C DE 803139C
- Authority
- DE
- Germany
- Prior art keywords
- valve
- piston
- safety valve
- energy
- cone
- 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
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
- F16K17/082—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 piston
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Description
Bei den gebräuchlichen feder- oder gewichtsbelasteten Sicherheitsventilen ist ein beachtlicher Druck erforderlich, um das Ventil offen zu halten. Im Ventilspalt hat nun aber die im strömenden Medium enthaltene Energie zum größten Teil die Form kinetischer Energie, während ihr Anteil an Druckenergie nur klein ist. Daher müssen die gebräuchlichen Sicherheitsventile verhältnismäßig große Abmessungen erhalten, um das Ausströmen einer bestimmten Menge flüssigen oder gasförmigen Mediums pro Zeiteinheit zu gewährleisten.With the common spring-loaded or weight-loaded safety valves Considerable pressure is required to keep the valve open. In the valve gap but now most of the energy contained in the flowing medium has the form kinetic energy, while their share of pressure energy is only small. Therefore must the common safety valves get relatively large dimensions, around the outflow of a certain amount of liquid or gaseous medium per Ensure time unit.
plan hat bereits Sicherheitsventile gebaut, bei denen das Öffnen des Ventils durch Beaufschlagung einer vom Ventilkegel getrennten Fläche bewirkt wird. Diese Fläche wird durch eine Membran gebildet, deren Durchbiegung das Öffnen des Ventilkegels ergibt. Man erreicht durch diese Bauart, daß das Medium, dessen Druck das Öffnen des Ventils hervorruft, an einer Stelle wirksam wird, wo seine Energie noch überwiegend die Form statischer Druckenergie hat. Die Membranventile lassen jedoch nur einen kleinen Hub des Ventilkegels zu, und sie eignen sich auch nur für verhältnismäßig niedrige Drücke.plan has already built safety valves with which the opening of the Valve is effected by the application of a surface separate from the valve cone. This area is formed by a membrane, the deflection of which opens the Valve cone results. With this design one achieves that the medium, its pressure the opening of the valve causes it to take effect at a point where its energy takes effect still predominantly takes the form of static pressure energy. Leave the diaphragm valves However, only a small stroke of the valve cone, and they are only suitable for relatively low pressures.
Nach der Erfindung wird die Fläche, deren Beaufschlagung das Öffnen des Ventils ergibt, durch einen mit dem Ventilkegel verbundenen Kolben bewirkt. Hierdurch werden die Vorteile, aber nicht die Nachteile der bekannten Sicherheitsventile erreicht. Das Ventil kann verhältismäßig kleine Abmessungen erhalten, und das Sicherheitsventil kann ohne Schwierigkeiten für höchste Drücke und Temperaturen gebaut werden.According to the invention, the area whose exposure is the opening of the valve, caused by a piston connected to the valve cone. This eliminates the advantages, but not the disadvantages, of the known safety valves achieved. The valve can be given relatively small dimensions, and the safety valve can be built without difficulty for the highest pressures and temperatures.
Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes in Abb. i in senkrechtem Mittelschnitt dargestellt; Abb. 2 und 3 zeigen Einzelheiten.The drawing shows an embodiment of the subject matter of the invention shown in Fig. i in vertical center section; Figures 2 and 3 show details.
Das gezeichnete Ventil hat den Eintrittsstutzen4 und den Austrittsstutzen 5. Der Ventilsitz 6 wird durch den Ventilkegel ? überwacht, der mit dem Kolben 8 fest verbunden ist. Die andere Seite des Kolbens 8 trägt die Führungsstange 9. Gegen das Gehäuse io des Ventils ist der Kolben 8 durch die Manschette i i abgedichtet. Das strömende Medium wirkt auf die Unterseite des Kolbens 8 ein. Die andere Seite des Kolbens 8 ist durch die Druckfeder 12 belastet. Die Kolbenführungsstange 9 hat nahe ihrem oberen Ende eine Nut 13, in die bei angehobenem Kolben 8 die Feder 14 eingreifen kann, so daß sie den Kolben in der gehobenen Stellung festhält.The drawn valve has the inlet nozzle4 and the outlet nozzle 5. The valve seat 6 is through the valve cone? monitored, the one with the piston 8 is firmly connected. The other side of the piston 8 carries the guide rod 9. Against the housing io of the valve, the piston 8 is sealed by the cuff i i. The flowing medium acts on the underside of the piston 8. The other side of the piston 8 is loaded by the compression spring 12. The piston guide rod 9 has near its upper end is a groove 13 in which the spring 14 when the piston 8 is raised can intervene so that it holds the piston in the raised position.
Die Kraft zum Öffnen des Ventils wird durch das Medium an einer Stelle erzeugt, wo es noch überwiegend seine Energie in der Form von Druckenergie hat, also nicht etwa im Ventilspalt, wo seine Energie weitgehend oder nahezu vollständig in kinetische Energie umgewandelt worden ist. Daher braucht der Ventilkegel nicht in Rücksicht auf die Kraft zum Öffnen des Ventils zusätzlich vergrößert zu werden.The force to open the valve is given by the medium at one point generated where it still has its energy predominantly in the form of pressure energy, so not in the valve gap, where its energy is largely or almost completely has been converted into kinetic energy. Therefore, the valve cone does not need to be additionally increased in consideration of the force to open the valve.
Nach Abb. 3 schließt sich an den Ventilsitz 6 eine Düse 15 an. Hat das Druckmedium nach dem Austritt aus dem Ventilsitz noch Arbeit zu leisten oder eine Druckhöhe zu überwinden, so kann die im Ventilsitz herrschende hohe Geschwindigkeit durch die Düse 15 in Druck zurückverwandelt werden. Der zurückgewonnene Druck überwindet ohne Nachteile für die Wirkung des Sicherheitsventils die bei der Fortleitung in einer nachfolgenden Rohrleitung vorhandenen Drücke und Reibungswiderstände.According to Fig. 3, a nozzle 15 connects to the valve seat 6. Has the pressure medium can still do work after exiting the valve seat or To overcome a pressure head, the high speed prevailing in the valve seat can can be converted back into pressure by the nozzle 15. The regained pressure overcomes without any disadvantages for the effectiveness of the safety valve a downstream pipeline existing pressures and frictional resistances.
Der,Erfindungsgedanke ist auf Sicherheitsventile für die verschiedensten flüssigen oder gasförmigen Medien anwendbar.The, inventive idea is on safety valves for the most diverse liquid or gaseous media applicable.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL532A DE803139C (en) | 1949-12-02 | 1949-12-02 | Safety valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL532A DE803139C (en) | 1949-12-02 | 1949-12-02 | Safety valve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE803139C true DE803139C (en) | 1951-03-01 |
Family
ID=7254925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL532A Expired DE803139C (en) | 1949-12-02 | 1949-12-02 | Safety valve |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE803139C (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE924302C (en) * | 1952-01-24 | 1955-02-28 | Mak Maschb Kiel Ag | Piston valve designed as overpressure safety device |
DE951405C (en) * | 1953-11-07 | 1956-10-25 | Borsig Ag | Safety valve with auxiliary piston |
DE1039329B (en) * | 1953-04-17 | 1958-09-18 | Bosch Gmbh Robert | Pressure relief valve for hydraulic systems, especially for power lifts on vehicles |
DE1059259B (en) * | 1958-01-02 | 1959-06-11 | Walter Jordan | Overpressure safety or overflow valve, especially for pump pressure lines for fuel filling systems |
DE1065240B (en) * | 1956-08-07 | 1959-09-10 | Teves Kg Alfred | Pressure relief valve, especially for hydraulic systems |
DE1083096B (en) * | 1959-03-04 | 1960-06-09 | Eddelbuettel & Schneider | Overpressure protection |
DE1087863B (en) * | 1958-06-06 | 1960-08-25 | Bwg Bergwerk Walzwerk | Overpressure safety valve |
DE1182493B (en) * | 1959-12-28 | 1964-11-26 | Fmc Corp | Spring-loaded pressure relief valve with snap action |
DE1228881B (en) * | 1963-12-04 | 1966-11-17 | Werner & Pfleiderer | Spring-loaded safety valve |
DE1238287B (en) * | 1960-05-24 | 1967-04-06 | Jacques Muller | Valve coupling for connecting a filling line to the nozzle of a liquid container |
-
1949
- 1949-12-02 DE DEL532A patent/DE803139C/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE924302C (en) * | 1952-01-24 | 1955-02-28 | Mak Maschb Kiel Ag | Piston valve designed as overpressure safety device |
DE1039329B (en) * | 1953-04-17 | 1958-09-18 | Bosch Gmbh Robert | Pressure relief valve for hydraulic systems, especially for power lifts on vehicles |
DE951405C (en) * | 1953-11-07 | 1956-10-25 | Borsig Ag | Safety valve with auxiliary piston |
DE1065240B (en) * | 1956-08-07 | 1959-09-10 | Teves Kg Alfred | Pressure relief valve, especially for hydraulic systems |
DE1059259B (en) * | 1958-01-02 | 1959-06-11 | Walter Jordan | Overpressure safety or overflow valve, especially for pump pressure lines for fuel filling systems |
DE1087863B (en) * | 1958-06-06 | 1960-08-25 | Bwg Bergwerk Walzwerk | Overpressure safety valve |
DE1083096B (en) * | 1959-03-04 | 1960-06-09 | Eddelbuettel & Schneider | Overpressure protection |
DE1182493B (en) * | 1959-12-28 | 1964-11-26 | Fmc Corp | Spring-loaded pressure relief valve with snap action |
DE1238287B (en) * | 1960-05-24 | 1967-04-06 | Jacques Muller | Valve coupling for connecting a filling line to the nozzle of a liquid container |
DE1228881B (en) * | 1963-12-04 | 1966-11-17 | Werner & Pfleiderer | Spring-loaded safety valve |
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