DE1006230B - Pilot operated safety valve - Google Patents
Pilot operated safety valveInfo
- Publication number
- DE1006230B DE1006230B DEA19196A DEA0019196A DE1006230B DE 1006230 B DE1006230 B DE 1006230B DE A19196 A DEA19196 A DE A19196A DE A0019196 A DEA0019196 A DE A0019196A DE 1006230 B DE1006230 B DE 1006230B
- Authority
- DE
- Germany
- Prior art keywords
- slide
- safety valve
- rod
- pilot operated
- pressure
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/44—Applications, arrangements, or dispositions of alarm or automatic safety devices of safety valves
- F22B37/446—Safety devices responsive to overpressure
-
- 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
- F16K17/10—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 auxiliary valve for fluid operation of the main valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Safety Valves (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft ein hilfsgesteuertes Sicherheitsventil für Gas oder Dampf mit einem Hilfssteuerschieber. Es sind hilfsgesteuerte Sicherheitsventile bekannt, bei denen das Hilfssteuerorgan von einem Schieber gebildet wird. Derartige Ventile werden im allgemeinen nur für flüssige Medien verwendet. Für gas- oder dampfförmige Medien sind diese bekannten Sicherheitsventile bis jetzt nicht verwendet worden, da sich der Hilfssteuerschieber für diese Medien für einen dichten Abschluß nicht eignet. Dies ist vor allem darauf zurückzuführen, daß die zur Verwendung kommenden Hilfssteuerschieber als Kolbenschieber ausgebildet sind und entlang eines zylinderförmigen Teiles gleitend gelagert sind.The invention relates to an auxiliary controlled safety valve for gas or steam with an auxiliary control slide. There are auxiliary-controlled safety valves are known in which the auxiliary control member of a slide is formed. Such valves are generally only used for liquid media. These known safety valves have not yet been used for gaseous or vaporous media because the auxiliary control slide is not suitable for a tight seal for these media. This is mainly due to the fact that the auxiliary control slide used as Piston valves are formed and are slidably mounted along a cylindrical part.
Durch die vorliegende Erfindung wird dieser den bekannten mittels Schieber gesteuerten Sicherheitsventilen anhaftende Mangel beseitigt. Dies wird dadurch erreicht, daß als Steuerorgan der hilfsgesteuerten Sicherheitsventile ein vom Mediumdruck dichtend auf seine Schiebersitzfläche gepreßter Schieber verwendet wird. Damit ist gleichzeitig der Vorteil verbunden, daß die Differenz zwischen dem Ansprech- und dem Schließdruck bei hilfsgesteuerten Sicherheitsventilen besonders klein gehalten werden kann, weil die Hilfssteuerschieber nicht so wie ein Hilfssteuerventil Kräften in Bewegungsrichtung von der Strömung her ausgesetzt ist. Der erfindungsgemäß vom Mediumdruck auf seine Sitzfläche gesperrte Schieber gewährleistet auch bei hohen Betriebsdrücken einen dichten Abschluß. Through the present invention, this becomes the known safety valves controlled by means of slides adhering defects eliminated. This is achieved in that the auxiliary-controlled Safety valves are pressed by the medium pressure to form a seal on its slide seat surface Slider is used. This also has the advantage that the difference between the The response and closing pressure in the case of auxiliary-controlled safety valves can be kept particularly small can, because the auxiliary control spool does not have forces in the direction of movement like an auxiliary control valve exposed to the current. The blocked according to the invention by the medium pressure on its seat The slide ensures a tight seal even at high operating pressures.
In weiterer Ausbildung der Erfindung wird der Steuerschieber an einer nach außen durchgeführten Stange beweglich befestigt, deren inneres Ende zentrisch im Steuerkolben des Dampfventils geführt und vermittels Bohrungen in diesem Steuerkolben vom Mediumdruck beaufschlagt ist und auf dessen äußeres Ende die Gewichtsbelastung wirkt, wobei der Schieber quer zur Stange vom Mediumdruck auf die zur Stangenachse parallele Schiebersitzfläche gedrückt wird.In a further embodiment of the invention, the control slide is carried out on an outwardly Rod attached movably, the inner end of which is guided centrally in the control piston of the steam valve and is acted upon by the medium pressure by means of bores in this control piston and on its exterior At the end of the weight load acts, the slide transversely to the rod from the medium pressure to the Rod axis parallel slide seat is pressed.
Durch diese Maßnahme ergibt sich eine besonders vorteilhafte Ausführungsform des Sicherheitsventils. Zur Vermeidung von Bruchschäden der Sitzflächen des Hauptventilkegels beim Schließen desselben wird in vorteilhafter Weise das Sicherheitsventil mit einer Dämpfungsvorrichtung versehen.This measure results in a particularly advantageous embodiment of the safety valve. To avoid breakage of the seat surfaces of the main valve cone when it is closed the safety valve is advantageously provided with a damping device.
In der Zeichnung ist ein Ausführungsbeispiel des erfindungsgemäßen Gegenstandes dargestellt, und zwar ein Längsschnitt durch ein Heiß dampf sicherheitsventil. In the drawing, an embodiment of the subject matter of the invention is shown, and although a longitudinal section through a hot steam safety valve.
In der Abbildung ist mit 1 der Hauptkegel des Ventils bezeichnet, der unter der Belastung des aus dem Überhitzer eintretenden Dampfes steht. 2 ist die Sattdampf-Impulsleitung, 3 der mit dem Hauptkegel 1 Hilfsgesteuertes SicherheitsventilIn the figure, 1 denotes the main cone of the valve, which is under the load of the out the superheater entering steam. 2 is the saturated steam impulse line, 3 the one with the main cone 1 Pilot operated safety valve
Anmelder:Applicant:
Amag-Hilpert-Pegnitzhütte A. G.,
Nürnberg, Allersberger Str. 13-19Amag-Hilpert-Pegnitzhütte AG,
Nuremberg, Allersberger Str. 13-19
durch eine Kupplung 4 verbundene Kolben des Ventils. Die untere Druckkammer 5 steht mittels axialer Bohrungen 7 mit der oberen Druckkammer 8 in Verbindung. Bohrungen 17 in der Bodenfläche des Kolbens 3 lassen den Dampf der Kammer in den Steuerkolbenzylinder 6 eintreten, der im Falle des Überschreitens des Abblasedruckes den Steuerkolben 9 anhebt und über die Druckstange 10 den vom Mediumdruck dichtend auf seine Schiebersitzfläche gepreßten Steuerschieber 11 öffnet, so daß der Dampf der Kammer 8 durch die Ventildüse 13 in die Leitung 14 und den Austrittsstutzen 15 strömt. An der Unterseite des Ventils ist die zentrale Ölbremse 12 und seitlich der Eintrittsstutzen 16 angeordnet.piston of the valve connected by a coupling 4. The lower pressure chamber 5 is by means of axial bores 7 with the upper pressure chamber 8 in connection. Holes 17 in the bottom surface of the Piston 3 let the vapor of the chamber enter the control piston cylinder 6, which in the case of the If the blow-off pressure is exceeded, the control piston 9 is raised and, via the push rod 10, the pressure from the medium sealingly on its valve seat pressed control slide 11 opens so that the steam of the Chamber 8 flows through the valve nozzle 13 into the line 14 and the outlet connection 15. On the bottom of the valve, the central oil brake 12 and the inlet connection 16 are arranged to the side.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA19196A DE1006230B (en) | 1953-11-23 | 1953-11-23 | Pilot operated safety valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA19196A DE1006230B (en) | 1953-11-23 | 1953-11-23 | Pilot operated safety valve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1006230B true DE1006230B (en) | 1957-04-11 |
Family
ID=6924380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA19196A Pending DE1006230B (en) | 1953-11-23 | 1953-11-23 | Pilot operated safety valve |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1006230B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2344768A1 (en) * | 1976-03-17 | 1977-10-14 | Luceat | SAFETY VALVE |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE597363C (en) * | ||||
CH163972A (en) * | 1931-08-20 | 1933-09-15 | Petit Andre | Pressure limiting device. |
DE644672C (en) * | 1935-06-06 | 1937-05-10 | Wilhelm Strube | Safety valve with main and auxiliary valve lying in the same central axis |
DE670969C (en) * | 1933-07-28 | 1939-01-28 | Schaeffer & Budenberg G M B H | Safety valve |
US2639725A (en) * | 1946-04-29 | 1953-05-26 | Roper Corp Geo D | Pilot operated relief valve for pumps and the like |
-
1953
- 1953-11-23 DE DEA19196A patent/DE1006230B/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE597363C (en) * | ||||
CH163972A (en) * | 1931-08-20 | 1933-09-15 | Petit Andre | Pressure limiting device. |
DE670969C (en) * | 1933-07-28 | 1939-01-28 | Schaeffer & Budenberg G M B H | Safety valve |
DE644672C (en) * | 1935-06-06 | 1937-05-10 | Wilhelm Strube | Safety valve with main and auxiliary valve lying in the same central axis |
US2639725A (en) * | 1946-04-29 | 1953-05-26 | Roper Corp Geo D | Pilot operated relief valve for pumps and the like |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2344768A1 (en) * | 1976-03-17 | 1977-10-14 | Luceat | SAFETY VALVE |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1947342A1 (en) | Servo-controlled control valve | |
DE1020841B (en) | Shut-off device operated by means of a servomotor | |
DE412139C (en) | Valve | |
DE814978C (en) | Control valve with piston balanced single-seat valve cone | |
DE1025692B (en) | Relieved solenoid valve | |
DE1006230B (en) | Pilot operated safety valve | |
EP0123866B1 (en) | Air pressure cylinder, especially an air pressure brake cylinder | |
DE3001186C2 (en) | ||
AT366803B (en) | SHUT-OFF AND CONTROL VALVE | |
DE1072101B (en) | ||
DE1161732B (en) | Control valve with a housing seal seat arranged in a venturi-shaped flow | |
DE2010918A1 (en) | Valve for fluid switching circuits | |
DE2701598C2 (en) | Pilot operated high pressure seat valve | |
DE1192836B (en) | Fluid valve controlled by pressure medium for automatic flow limitation devices | |
DE324820C (en) | Safety valve | |
DE1084998B (en) | Switching valve with auxiliary valve control | |
DE2427809A1 (en) | Push button valve - has push rod-operated stem in inlet space, and is fitted with plunger and bore for pressure compensation | |
DE3338416C2 (en) | Device for damping vibrations in liquids | |
AT299826B (en) | Air chamber flushing device | |
DE616507C (en) | Braking device, especially for heavy vehicles | |
DE420101C (en) | Control valve | |
DE537175C (en) | Single chamber compressed air brake | |
DE320927C (en) | Control piston moved by gas or liquid | |
DE683370C (en) | High lift safety valve | |
DE492480C (en) | Pressurized gas or steam liquid lifters |