AT93311B - Automatic control of bleed turbines in which the centrifugal governor adjusts the main steam valve and the overflow valve in the same way. - Google Patents

Automatic control of bleed turbines in which the centrifugal governor adjusts the main steam valve and the overflow valve in the same way.

Info

Publication number
AT93311B
AT93311B AT93311DA AT93311B AT 93311 B AT93311 B AT 93311B AT 93311D A AT93311D A AT 93311DA AT 93311 B AT93311 B AT 93311B
Authority
AT
Austria
Prior art keywords
bleed
valve
turbines
same way
automatic control
Prior art date
Application number
Other languages
German (de)
Original Assignee
Mels & Pfenniger Kommanditgese
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 Mels & Pfenniger Kommanditgese filed Critical Mels & Pfenniger Kommanditgese
Application granted granted Critical
Publication of AT93311B publication Critical patent/AT93311B/en

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  • Control Of Turbines (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Selbsttätige   Regelung   von Anzapfturbinen, bei denen der   FIiel1kraftregler   das Frisch- dampf-und das Überströmventil in gleichem Sinne verstellt. 
 EMI1.1 
 
 EMI1.2 
 werden im gleichen Sinne verstellt, u. zw. bei zunehmender Drehzahl geschlossen. Die   Schieberbüchse   m des Krafteinschalters f der   Niederdrucksteuerung   ist aber verschiebbar eingerichtet und mit dem Kolben n durch eine Stange verbunden. Auf die obere Seite des Kolbens   n   wirkt die Feder p, auf die untere der Heizdampf, der durch die Leitung o zugeführt wird. 



   Die Wirkungsweise der Einrichtung ist folgende : So lange der   Heizdampfbedarf in   normalen Grenzen schwankt, nimmt die Drehzahl der Anzapfturbine mit zunehmender Heizdampfentnahme und gleichbleibender Belastung etwas ab. Steigt der Heizdampfbedarf während einer ausgesprochenen Kälteperiode in besonderem Masse, so gelangt der Kolben n des Druckreglers in eine entsprechend tiefe Lage und bewegt das Überströmventil durch Vermittlung der Büchse m und des Kraftzylinders f so lange gegen seinen Sitz zu, bis die benötigte Anzapfmenge geliefert wird.

   Zu gleicher Zeit sinkt der Geschwindigkeitsregler, da die Leistungsabgabe und damit die Drehzahl abnehmen,   11.     zu. po   lange, bis sich der Gesehwindigkeits- 

 <Desc/Clms Page number 2> 

 regler in einer solchen Lage befindet, dass das Frischdampfventil vollständig geöffnet ist und so der Turbine die grösstmögliche Dampfmenge zugeführt wird. Der Ausfall an Leistung muss nun von den parallel geschalteten Maschinen gedeckt werden. Statt eines Frischdampfventiles und eines Überströmventiles können naturgemäss auch je eine Gruppe von derartigen Ventilen vorgesehen werden.



   <Desc / Clms Page number 1>
 



  Automatic regulation of bleed turbines in which the flow regulator adjusts the live steam valve and the overflow valve in the same way.
 EMI1.1
 
 EMI1.2
 are adjusted in the same way, u. between closed with increasing speed. The sliding sleeve m of the power switch f of the low pressure control is, however, designed to be displaceable and is connected to the piston n by a rod. The spring p acts on the upper side of the piston n and the heating steam, which is supplied through the line o, acts on the lower side.



   The function of the device is as follows: As long as the heating steam requirement fluctuates within normal limits, the speed of the bleed turbine decreases somewhat with increasing heating steam extraction and constant load. If the need for heating steam increases to a particularly high degree during a pronounced cold period, the piston n of the pressure regulator reaches a correspondingly low position and moves the overflow valve against its seat by means of the bushing m and the power cylinder f until the required amount of tap is delivered.

   At the same time, the speed controller decreases, since the power output and thus the speed decrease, 11. to. po long until the speed

 <Desc / Clms Page number 2>

 controller is in such a position that the live steam valve is fully open and the turbine is supplied with the largest possible amount of steam. The loss of power must now be covered by the machines connected in parallel. Instead of a live steam valve and an overflow valve, a group of such valves can naturally also be provided.

 

Claims (1)

PATENT-ANSPRUCH : Selbsttätige Regelung von Anzapfturbinen, bei denen der Fliehkraftregler das Frischdampf-und das Überströmventil in gleichem Sinne verstellt, dadurch gekennzeichnet, dass unabhängig vom Fliehkraftregler der Druckregler nur auf die Steuerung des Überströmventils einwirkt. EMI2.1 PATENT CLAIM: Automatic control of bleed turbines, in which the centrifugal regulator adjusts the live steam valve and the overflow valve in the same way, characterized in that, independently of the centrifugal regulator, the pressure regulator only acts on the control of the overflow valve. EMI2.1
AT93311D 1917-04-16 1917-05-10 Automatic control of bleed turbines in which the centrifugal governor adjusts the main steam valve and the overflow valve in the same way. AT93311B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE93311X 1917-04-16

Publications (1)

Publication Number Publication Date
AT93311B true AT93311B (en) 1923-06-25

Family

ID=5644591

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93311D AT93311B (en) 1917-04-16 1917-05-10 Automatic control of bleed turbines in which the centrifugal governor adjusts the main steam valve and the overflow valve in the same way.

Country Status (1)

Country Link
AT (1) AT93311B (en)

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