DE251699C - - Google Patents

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Publication number
DE251699C
DE251699C DENDAT251699D DE251699DA DE251699C DE 251699 C DE251699 C DE 251699C DE NDAT251699 D DENDAT251699 D DE NDAT251699D DE 251699D A DE251699D A DE 251699DA DE 251699 C DE251699 C DE 251699C
Authority
DE
Germany
Prior art keywords
valve
control valve
steam
closed
relieved
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.)
Active
Application number
DENDAT251699D
Other languages
German (de)
Publication of DE251699C publication Critical patent/DE251699C/de
Active legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D19/00Starting of machines or engines; Regulating, controlling, or safety means in connection therewith

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Der Gegenstand der Erfindung bezieht sich auf eine Anlaßvorrichtung für Dampfturbinen, die in der Zeichnung schematisch veranschaulicht ist.The object of the invention relates to a starting device for steam turbines, which is illustrated schematically in the drawing.

Die Anlaßvorrichtung besteht aus dem Hauptabsperrventile α und aus dem Regelventile c, beide durch Druckkolben bewegt. Das Hauptabsperrventil wird im Falle des Überschreitens der zulässigen Drehzahl vomThe starting device consists of the main shut-off valve α and the control valve c, both moved by pressure pistons. The main shut-off valve is switched off in the event that the permissible speed is exceeded

ίο Sicherheitsregler aus oder zwecks plötzlichen Abstellens von Hand aus mittels Druckflüssigkeit geschlossen. Zum Anlassen dient das Regelventil.ίο Safety regulator off or for the purpose of sudden Closed by hand by means of hydraulic fluid. This is used for starting Control valve.

Die Erfindung besteht darin, daß das Hauptabsperrventil nicht geöffnet werden kann, bevor das Regelventil c geschlossen ist, zu dem Zwecke, um die Turbine vor jedem plötzlichen Dampf stoße zu bewahren. Gemäß der Erfindung ist das Hauptabsperrventil a als nicht entlastetes Ventil ausgeführt und mit einem kleinen Hilfsventile b ausgestattet.The invention consists in that the main shut-off valve cannot be opened before the control valve c is closed, for the purpose of protecting the turbine from any sudden steam bursts. According to the invention, the main control valve is designed as a non-balanced valve and equipped with a small auxiliary valves b.

Ist das Regelventil nicht geschlossen, so wird der durch das Hilfsventil strömende Dampf durch das Regelventil strömen und in die Turbine gelangen. Das durch den Dampf belastete Ventil α kann durch den Öldruck nicht geöffnet werden. Erst wenn das Regelventil geschlossen ist, wird der durch das Hilfsventil strömende Dampf im Räume d gestaut und dadurch ein Druckausgleich auf beiden Seiten des Ventiles α erzielt. Letzteres kann sich nunmehr öffnen, und die Turbine kann vom Regelventile aus angelassen werden.If the control valve is not closed, the steam flowing through the auxiliary valve will flow through the control valve and enter the turbine. The valve α loaded by the steam cannot be opened by the oil pressure. It is only when the control valve is closed that the steam flowing through the auxiliary valve is dammed up in space d, thereby achieving pressure equalization on both sides of the valve α . The latter can now open and the turbine can be started from the control valve.

Statt des Ventiles α kann sinngemäß jedes andere nicht entlastete Absperrorgan angeordnet werden.Instead of the valve α , any other non-relieved shut-off device can be arranged.

Durch diese Anordnung wird auch erreicht, daß die Turbine nicht angelassen werden kann, bevor Öldruck vorhanden ist, d. h. bevor öl auf die Lager gepumpt ist.This arrangement also ensures that the turbine cannot be started, before oil pressure is available, d. H. before oil is pumped onto the bearings.

Claims (1)

Patent-Anspruch :Patent claim: Anlaßvorrichtung für Dampfturbinen, dadurch gekennzeichnet, daß das nicht entlastete Hauptabsperrorgan erst geöffnet werden kann, sobald das Regelventil geschlossen ist und durch Anstauung des Dampfes hinter dem Hauptabsperrorgan letzteres entlastet ist, um hierauf die Türbine mittels des Regelventiles anlassen zu können.Starting device for steam turbines, thereby characterized in that the non-relieved main valve can only be opened as soon as the control valve is closed is and by accumulation of steam behind the main shut-off device, the latter is relieved to then the door bracket to be able to start using the control valve. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT251699D Active DE251699C (en)

Publications (1)

Publication Number Publication Date
DE251699C true DE251699C (en)

Family

ID=510122

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
DE (1) DE251699C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515251A1 (en) * 1981-10-22 1983-04-29 Edison Int Inc TURBINE REGULATOR CONTROL TRACERIES PROTECTING THEM AGAINST ROTATION PACKAGES
DE10219948A1 (en) * 2002-05-03 2003-11-13 Alstom Switzerland Ltd steam turbine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515251A1 (en) * 1981-10-22 1983-04-29 Edison Int Inc TURBINE REGULATOR CONTROL TRACERIES PROTECTING THEM AGAINST ROTATION PACKAGES
DE10219948A1 (en) * 2002-05-03 2003-11-13 Alstom Switzerland Ltd steam turbine
US7223065B2 (en) 2002-05-03 2007-05-29 Alstom Technology Ltd Steam turbine

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