DE941039C - Damping device for auxiliary valves, especially safety valves that close in the direction of flow - Google Patents

Damping device for auxiliary valves, especially safety valves that close in the direction of flow

Info

Publication number
DE941039C
DE941039C DER11801A DER0011801A DE941039C DE 941039 C DE941039 C DE 941039C DE R11801 A DER11801 A DE R11801A DE R0011801 A DER0011801 A DE R0011801A DE 941039 C DE941039 C DE 941039C
Authority
DE
Germany
Prior art keywords
valves
damping device
closure piece
flow
close
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
DER11801A
Other languages
German (de)
Inventor
Carl Heinz Dipl-Ing Haefele
Alfred Dipl-Ing Kreuz
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.)
Sempell GmbH
Original Assignee
Rheinische Armaturen und Maschinenfabrik Albert Sempell
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
Priority to DER10431A priority Critical patent/DE931555C/en
Application filed by Rheinische Armaturen und Maschinenfabrik Albert Sempell filed Critical Rheinische Armaturen und Maschinenfabrik Albert Sempell
Priority to DER11801A priority patent/DE941039C/en
Application granted granted Critical
Publication of DE941039C publication Critical patent/DE941039C/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
    • F16K47/00Means in valves for absorbing fluid energy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Fluid-Damping Devices (AREA)

Description

Im Patent 931 555 wird eine Dämpfungsvorrichtung für Absperrorgane, insbesondere hilfsgesteuerte Sicherheitsventile, vorgeschlagen, durch die das harte Auf- und Zuschlagen des absperrenden-und abdichtenden Ventilkegels nur durch das jeweils in dem abzusichernden und abzuschließenden Leitungssystem vorhandene Medium gedämpft wird. Die Öffnungsbewegung eines hilfsgesteuerten Sicherheitsventils, dessen Hauptverschlußstück in einem Steuerzylinder gleitet und durch das Entweichen des gespannten Mediums aus dem Zylinder geöffnet wird, wird dabei dadurch gedämpft, daß der Abfluß des gespannten Mediums aus dem Steuerzylinder beim Offnen durch eine Steuerkante am Kolbenansatz des Hauptverschlußstückes unterbrochen wird, bevor das Ventil die volle Offenstellung erreicht hat. Die kinetische Energie des sich öffnenden Verschlußstückes wird dann durch die Kompression eines Teils des Mediums aufgefangen, bevor es auf die Hubbegrenzung am Gehäuse stößt.In the patent 931 555 a damping device for shut-off devices, In particular, pilot operated safety valves, proposed through which the hard Opening and closing the shut-off and sealing valve cone only through the medium present in the pipeline system to be secured and locked is dampened. The opening movement of a pilot operated safety valve whose Main locking piece slides in a control cylinder and through the escape of the the tensioned medium is opened from the cylinder, is thereby damped, that the outflow of the tensioned medium from the control cylinder when opened by a Control edge at the piston base of the main locking piece is interrupted before the Valve has reached the fully open position. The kinetic energy of the opening The closure piece is then caught by compressing part of the medium, before it hits the stroke limiter on the housing.

Neben dieser Dämpfung ist bei Überström- oder hilfsgesteuertenVentilen aber auch noch ein schrittweises Offnen erwünscht. Das Ventil soll beispielsweise bei einem bestimmten Ansprechdruck um 1o °/o öffnen, bei einer gewissen weiteren Drucksteigerung 40 % des Gesamtquerschnitts freigeben und erst bei einer noch größeren Drucksteigerung derl vollen Querschnitt freigeben.In addition to this damping, there is also relief or auxiliary-controlled valves but a gradual opening is also desirable. The valve should for example open by 10% at a certain response pressure, and at a certain further pressure Release pressure increase of 40% of the total cross-section and only with an even larger one Release the pressure increase of the full cross-section.

Dies läßt sich mit der vorbeschriebenen Dämpfungsvorrichtung erreichen, wenn erfindungsgemäß im Steuerzylinder mehrere axial gestaffelte Öffnungen vorgesehen sind, die der gewünschten Öffnungsweite des Hauptverschlußstückes entsprechend nacheinander den Abfluß des gespannten Mediums freigeben, wie es an sich bei Servosteuerungen bekannt ist.This can be achieved with the damping device described above, if, according to the invention, several axially staggered openings are provided in the control cylinder are, which correspond to the desired opening width of the main closure piece one after the other release the drainage of the tensioned medium, as is the case with servo controls is known.

Abb. z und z zeigen Ausführungsbeispiele für ein derartiges schrittweises Öffnen des Ventils. Werden die in Abb. z skizzierten -drei Bohrungen D getrennt über drei Leitungen C zur Entspannung des Zylinderraumes F benutzt, so erfolgt die Öffnung des Ventilverschlußstückes mit entsprechender Dämpfung zuerst bis zur ersten, sodann bis zur zweiten und dritten Bohrung.Figs. Z and z show exemplary embodiments for such a step-by-step Open the valve. If the three bores D sketched in Fig. Z are separated Used via three lines C to relax the cylinder space F, the Open the valve closing piece with appropriate damping first up to the first, then up to the second and third hole.

Abb.2 zeigt ein weiteres Ausführungsbeispiel: der Differentialkolben T ist als Hohlkolben ausgeführt. Der Zylinderraum K hat einen Kreisringquerschnitt. Wird dieser Zylinderraum nacheinander durch die Leitungen L, M und O entspannt, d. h. der Druck in ihm relativ zum Druck im Ventilraum P vermindert, so drückt der hohe Druck im Ventilraum P den Differentialkolben zuerst so weit auf, daß die Bohrung L so weit vom Differentialkolben J überdeckt wird, daß der verbleibende Querschnitt der Bohrung L -in etwa den Undichtheiten der Kolbenringe Q entspricht. Diese Stellung des Kolbens wird sich erst nach einiger Zeit einstellen, da er zuerst eine stark gedämpfte Schwingung ausführt. @ Wird nun der Zylinderraum K über die Bohrungen M und Q abgesaugt, so erfolgt die weitere Öffnung des Ventils in ähnlicher Weise.Fig.2 shows another embodiment: the differential piston T is designed as a hollow piston. The cylinder space K has a circular cross-section. If this cylinder space is relaxed one after the other through the lines L, M and O, d. H. if the pressure in it is reduced relative to the pressure in the valve chamber P, the pressures high pressure in the valve chamber P the differential piston first so far that the bore L is covered so far by the differential piston J that the remaining cross-section the bore L - roughly corresponds to the leaks in the piston rings Q. This position of the piston will take some time to set because it is a strong first carries out damped oscillation. @ If the cylinder space K is now over the bores M and Q sucked off, the further opening of the valve takes place in a similar manner.

Claims (1)

PATENTANSPRUCH: Dämpfungsvorrichtung für hilfsgesteuerte Ventile, insbesondere in Strömungsrichtung schließende Sicherheitsventile, mit einem Hauptverschlußstück, das in einem Steuerzylinder gleitet, wobei nach Patent- 931 555 der Abfluß des gespannten Mediums aus dem Steuerzylinder durch eine Steuerkante am Kolbenansatz des Hauptverschlußstückes unterbrochen wird, bevor das Verschlußstück die volle Offenstellung erreicht hat, dadurch gekennzeichnet, daß im Steuerzylinder mehrere axial gestaffelte Öffnungen vorgesehen sind, die mit der Steuerkante zusammenwirken und der gewünschten Öffnungsweite des Hauptverschlußstückes entsprechend nacheinander den Abfluß des gespannten Mediums freigeben. Angezogene Druckschriften: -Deutsche Patentschriften Nr. 384 924, 609 5 13; französische Patentschrift Nr. 848 833 USA.-Patentschrift Nr. 2 439 5 15. PATENT CLAIM: Damping device for auxiliary valves, especially safety valves closing in the direction of flow, with a main closure piece that slides in a control cylinder, whereby according to Patent 931 555 the outflow of the tensioned medium from the control cylinder is interrupted by a control edge on the piston attachment of the main closure piece before the closure piece has reached the fully open position, characterized in that a plurality of axially staggered openings are provided in the control cylinder, which cooperate with the control edge and release the drainage of the tensioned medium according to the desired opening width of the main closure piece one after the other. Cited publications: German patent specifications No. 384 924, 609 5 13; French Patent No. 848 833 U.S. Patent No. 2,439 5 1 5.
DER11801A 1952-12-06 1953-06-02 Damping device for auxiliary valves, especially safety valves that close in the direction of flow Expired DE941039C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DER10431A DE931555C (en) 1952-12-06 1952-12-06 Damping device for automatic shut-off devices that close in the direction of flow, in particular auxiliary-controlled safety valves
DER11801A DE941039C (en) 1952-12-06 1953-06-02 Damping device for auxiliary valves, especially safety valves that close in the direction of flow

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER10431A DE931555C (en) 1952-12-06 1952-12-06 Damping device for automatic shut-off devices that close in the direction of flow, in particular auxiliary-controlled safety valves
DER11801A DE941039C (en) 1952-12-06 1953-06-02 Damping device for auxiliary valves, especially safety valves that close in the direction of flow

Publications (1)

Publication Number Publication Date
DE941039C true DE941039C (en) 1956-03-29

Family

ID=33419662

Family Applications (2)

Application Number Title Priority Date Filing Date
DER10431A Expired DE931555C (en) 1952-12-06 1952-12-06 Damping device for automatic shut-off devices that close in the direction of flow, in particular auxiliary-controlled safety valves
DER11801A Expired DE941039C (en) 1952-12-06 1953-06-02 Damping device for auxiliary valves, especially safety valves that close in the direction of flow

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DER10431A Expired DE931555C (en) 1952-12-06 1952-12-06 Damping device for automatic shut-off devices that close in the direction of flow, in particular auxiliary-controlled safety valves

Country Status (1)

Country Link
DE (2) DE931555C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045755B (en) * 1956-09-20 1958-12-04 Schloemann Ag Shut-off and control valve actuated by the pressure medium flowing through and control by an auxiliary slide
DE1107036B (en) * 1958-11-12 1961-05-18 Hydraulik As Manually operated control spool with a spool that can be automatically moved back into its rest position
DE1107038B (en) * 1959-02-12 1961-05-18 Basf Ag Drive device for glandless shut-off or control devices, especially for high pressures
DE1161103B (en) * 1958-01-24 1964-01-09 P & O Res & Dev Co Pressure medium drive for valves
DE1173301B (en) * 1958-02-03 1964-07-02 Diessel Geb Device for damping and stepwise closing movement of a valve closure piece that can be influenced from the outside
DE1177444B (en) * 1961-01-19 1964-09-03 Boehler & Co Ag Geb Device for damping the closing or opening movement of a valve or the like that is pressurized via a drive piston.
DE1184579B (en) * 1959-03-06 1964-12-31 Blakeborough & Sons Ltd J Check valve, especially for steam extraction lines

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104781B (en) * 1955-05-17 1961-04-13 Concordia Maschinen Und Elek Z Electromagnetically operated shut-off valve for liquid pressure medium
DE1082375B (en) * 1958-05-24 1960-05-25 John Lamb Publications And Inv Pressure relief valve for electric ovens or vacuum or pressure vessels
DE1287461B (en) * 1963-04-03 1969-01-16

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE384924C (en) * 1922-01-23 1923-11-10 John George Aulsebrook Kitchen Control device
DE609513C (en) * 1931-07-25 1935-02-16 Fritz Wagner & Co Relieved double seat valve
FR848833A (en) * 1938-01-21 1939-11-07 Ig Farbenindustrie Ag Process for preparing easily volatile bases
US2439515A (en) * 1946-02-06 1948-04-13 Hodgson Richard Harold Valve for step-by-step servomotors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE157266C (en) *
DE309800C (en) *
DE471541C (en) * 1929-02-13 Maihak Akt Ges H Safety valve with high lift area controlled by an auxiliary valve
DE711053C (en) * 1938-05-28 1941-09-25 Wilh Strube G M B H Boiler safety valve, especially for locomotive boilers with an auxiliary valve built into the same central axis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE384924C (en) * 1922-01-23 1923-11-10 John George Aulsebrook Kitchen Control device
DE609513C (en) * 1931-07-25 1935-02-16 Fritz Wagner & Co Relieved double seat valve
FR848833A (en) * 1938-01-21 1939-11-07 Ig Farbenindustrie Ag Process for preparing easily volatile bases
US2439515A (en) * 1946-02-06 1948-04-13 Hodgson Richard Harold Valve for step-by-step servomotors

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045755B (en) * 1956-09-20 1958-12-04 Schloemann Ag Shut-off and control valve actuated by the pressure medium flowing through and control by an auxiliary slide
DE1161103B (en) * 1958-01-24 1964-01-09 P & O Res & Dev Co Pressure medium drive for valves
DE1173301B (en) * 1958-02-03 1964-07-02 Diessel Geb Device for damping and stepwise closing movement of a valve closure piece that can be influenced from the outside
DE1107036B (en) * 1958-11-12 1961-05-18 Hydraulik As Manually operated control spool with a spool that can be automatically moved back into its rest position
DE1107038B (en) * 1959-02-12 1961-05-18 Basf Ag Drive device for glandless shut-off or control devices, especially for high pressures
DE1184579B (en) * 1959-03-06 1964-12-31 Blakeborough & Sons Ltd J Check valve, especially for steam extraction lines
DE1177444B (en) * 1961-01-19 1964-09-03 Boehler & Co Ag Geb Device for damping the closing or opening movement of a valve or the like that is pressurized via a drive piston.

Also Published As

Publication number Publication date
DE931555C (en) 1955-08-11

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