AT74744B

AT74744B - Automatic pipe rupture locking device.

Info

Publication number: AT74744B
Authority: AT
Inventors: Milan Dr Techn Vidmar
Original assignee: Milan Dr Techn Vidmar
Priority date: 1913-12-16
Filing date: 1913-12-16
Publication date: 1918-10-10

Description

  

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   Um nun den einmal eingeleiteten Schliessvorgang sicher seinem Ende zuzuführen, ist die Klappe c sehr massig auszuführen, auch tritt das zweite, normal unwirksame Gewicht h (Fig. 1 und 2) bald in Tätigkeit. Eine rückläufige Bewegung der Vorrichtung, etwa durch infolge teilweisen Absperrens der Hauptleitung wieder   wachsanden Druck mscht   ein Sperr- 
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 Klappe c mit Wasser, das die Luft hinausdrängt, das   Rückschlagventil     schliesst-die   enge Öffnung d verursacht keinen bedeutenden Abfluss-und den Druckausgleich zu beiden Seiten der Klappe herbeiführt, so dass nur noch die beiden Gewichte f und h sowie das Eigengewicht der Klappe   r : wirksam bleiben.   



   Die beiden freien Enden der Wellen   X'und ! können für den Hand-bzw.   Maschinenbetrieb benutzt werden.



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   In order to safely bring the closing process to its end, once it has been initiated, the flap c must be made very bulky, and the second, normally ineffective weight h (FIGS. 1 and 2) will soon come into operation. A reverse movement of the device, for example due to pressure that has increased again as a result of partial shut-off of the main line, creates a blocking
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 Flap c with water that forces the air out, the non-return valve closes - the narrow opening d does not cause any significant drainage - and brings about the pressure equalization on both sides of the flap, so that only the two weights f and h and the dead weight of the flap r: remain effective.



   The two free ends of shafts X 'and! can for the hand or. Machine operation.

Claims

PATENT CLAIM: Automatic pipe rupture locking device for pressure lines, characterized in that the actual shut-off device - a flap, a slide or piston - through the intermediary of a secondary locking device - a flap or a piston - the two surfaces of which on the one hand to a space that is under constant pressure, e.g.

B. atmospheric pressure, on the other hand, border on the space of the Leitnngsinneren, is set in motion by the static pressure difference that occurs during breakage compared to normal operation, whereas the execution of the closing movement, which is also - either directly or by translation or transformation - the movement of the secondary locking element must follow. by a constant force independent of the hydraulic processes in the pressure line, e.g. B. a weight, is concerned after the secondary locking device with its on- setzenden movement the pressure equalization in the two spaces that it normally separates. made possible, with a locking mechanism preventing the return.