AT56549B - Regulation of multi-stage steam turbines. - Google Patents

Regulation of multi-stage steam turbines.

Info

Publication number
AT56549B
AT56549B AT56549DA AT56549B AT 56549 B AT56549 B AT 56549B AT 56549D A AT56549D A AT 56549DA AT 56549 B AT56549 B AT 56549B
Authority
AT
Austria
Prior art keywords
regulation
steam turbines
stage steam
steam
valve
Prior art date
Application number
Other languages
German (de)
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to AT56549D priority Critical patent/AT56549B/en
Application granted granted Critical
Publication of AT56549B publication Critical patent/AT56549B/en

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  • Control Of Turbines (AREA)

Description

  

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 Nebenvetil vergrösserten   Schaufelquerschnitt für   den Dampfeintritt in die Schaufelung der Turbine, ebenso wird die Spannung der Feder kleiner, während der auf die Fläche   118   
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 ungeändert bleiben. Die Fläche   Fg   muss nun mindestens so gross sein, dass durch den Zuwachs des Druckes Pa die Abnahme des Druckes P2 und der Federspannung ausgeglichen wird. Praktisch macht man die Fläche Fa noch etwas grösser, damit im Augenblick des Öffnens ein das Öffnen beschleunigender   Druckuberschuss   nach oben entsteht. Dagegen tritt die angestrebte Wirkung nicht ein, wenn die Fläche Fa kleiner ist als das erwähnte   Mindestmass,   Ein derartiges Ventil ist in dem Patente Nr. 34139 dargestellt.

   Der äussere Durchmesser des mit dem Ventil verbundenen Kolbens ist zwar grösser als der des Ventiles, jedoch ist durch diese Vergrösserung das erwähnte Mindestmass nicht erreicht ; sie ist viel- 
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 In addition to the enlarged blade cross-section for the steam entry into the turbine blades, the tension of the spring is also reduced during the action on the surface 118
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 remain unchanged. The area Fg must now be at least so large that the increase in pressure Pa compensates for the decrease in pressure P2 and the spring tension. In practice, the area Fa is made a little larger so that at the moment of opening there is an upward excess pressure that accelerates opening. In contrast, the desired effect does not occur if the area Fa is smaller than the minimum dimension mentioned. A valve of this type is shown in patent no.

   The outer diameter of the piston connected to the valve is larger than that of the valve, but this enlargement does not result in the minimum dimension mentioned; she is much-
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Claims (1)

PATENT-ANSPRUCH : Regelung mehrstufiger Dampfturbinen nach dem Patente Nr. 34139, dadurch gekennzeichnet, dass nach dem Anheben des Nebenventiles der Dampf vom Einlassventil auf eine derartig hemessene Fläche des Nebenventiles wirkt, dass letzteres sofort in seine Endlage bewegt wird und dadurch den Dampf zu weiteren Stufen der Turbine strömen lässt, ohne ihn zu drosseln. PATENT CLAIM: Regulation of multi-stage steam turbines according to patent no.34139, characterized in that after the secondary valve has been raised, the steam from the inlet valve acts on such a hem measured area of the secondary valve that the latter is immediately moved into its end position and thereby the steam flows to further stages of the turbine leaves without throttling it.
AT56549D 1907-07-22 1910-06-21 Regulation of multi-stage steam turbines. AT56549B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT56549D AT56549B (en) 1907-07-22 1910-06-21 Regulation of multi-stage steam turbines.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT34139T 1907-07-22
DE56549X 1910-02-24
AT56549D AT56549B (en) 1907-07-22 1910-06-21 Regulation of multi-stage steam turbines.

Publications (1)

Publication Number Publication Date
AT56549B true AT56549B (en) 1912-11-25

Family

ID=27149421

Family Applications (1)

Application Number Title Priority Date Filing Date
AT56549D AT56549B (en) 1907-07-22 1910-06-21 Regulation of multi-stage steam turbines.

Country Status (1)

Country Link
AT (1) AT56549B (en)

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