AT65437B - Safety device for machines driven by water or steam turbines. - Google Patents

Safety device for machines driven by water or steam turbines.

Info

Publication number
AT65437B
AT65437B AT65437DA AT65437B AT 65437 B AT65437 B AT 65437B AT 65437D A AT65437D A AT 65437DA AT 65437 B AT65437 B AT 65437B
Authority
AT
Austria
Prior art keywords
water
safety device
steam turbines
machines driven
driven
Prior art date
Application number
Other languages
German (de)
Original Assignee
Aeg
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 Aeg filed Critical Aeg
Application granted granted Critical
Publication of AT65437B publication Critical patent/AT65437B/en

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  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Description

  

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   Es ist bekannt, dass Wasser-und Dampfturbinen bei plötzlicher Belastung einer weit über dem Normalen liegenden Tourenzahl zustreben. Es wird deshalb die Forderung gestellt, dass Maschinen, die von Turbinen angetrieben werden, diese Tourenerhöhung ohne Schaden aushalten können. Diese Forderung bedingt häufig die Verwendung von Sonderkonstruktionen und von hochwertigem Konstruktionsmaterial, wodurch die Maschinen erheblich verteuert werden. 



   Um das Mitlaufen der Maschine über eine bestimmte Umdrehungszahl der Turbine hinaus zu verhindern, kann eine selbsttätige Entkupplungsvorrichtung, welche zweckmässig durch Zentrifugalkräfte betätigt wird, vorgesehen werden. 



   Bekannt sind derartige Vorrichtungen bei mechanischen Kupplungen. Gemäss der Erfindung wird nun der Erregerstrom der magnetischen Kupplung bei Überschreitung der   zulässigen   Umdrehungszahl unterbrochen, z. B. durch einen   Zentrilugalschalter,   welcher durch die Zentrifugalkraft gegen die Wirkung einer Feder betätigt wird. Der Vorteil dieser Erfindung besteht darin, dass auch bei den grössten zu übertragenden Kräften und entsprechend grossen Kupplungen nur kleine Schwungmassen zur Erzeugung der Unterbrechungsenergie nötig sind. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



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   It is known that water and steam turbines tend towards a number of revolutions that is far above normal when suddenly loaded. There is therefore a requirement that machines that are driven by turbines can withstand this increase in speed without damage. This requirement often requires the use of special constructions and high-quality construction material, which makes the machines considerably more expensive.



   In order to prevent the machine from running beyond a certain number of revolutions of the turbine, an automatic decoupling device, which is expediently actuated by centrifugal forces, can be provided.



   Such devices are known for mechanical clutches. According to the invention, the excitation current of the magnetic clutch is now interrupted when the permissible number of revolutions is exceeded, e.g. B. by a Zentrilugalschalter which is operated by the centrifugal force against the action of a spring. The advantage of this invention is that, even with the greatest forces to be transmitted and correspondingly large clutches, only small centrifugal masses are required to generate the interruption energy.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Sicherheitsvorrichtung für von Wasser-oder Dampfturbinen angetriebene Maschinen, dadurch gekennzeichnet, dass bei Erreichung einer bestimmten Umlnufszabl eine zwischen der angetriebenen und der antreibenden Maschine angeordnete magnetische Kupplung vermittelt eines Zentrifugalschalters ausgeschaltet wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Safety device for machines driven by water or steam turbines, characterized in that a centrifugal switch arranged between the driven and the driving machine is switched off when a certain rotation is reached. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT65437D 1911-06-10 1912-06-08 Safety device for machines driven by water or steam turbines. AT65437B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE65437X 1911-06-10

Publications (1)

Publication Number Publication Date
AT65437B true AT65437B (en) 1914-06-25

Family

ID=5632892

Family Applications (1)

Application Number Title Priority Date Filing Date
AT65437D AT65437B (en) 1911-06-10 1912-06-08 Safety device for machines driven by water or steam turbines.

Country Status (1)

Country Link
AT (1) AT65437B (en)

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