AT131450B - Device for stopping electromotive driven centrifugal pumps conveying into an elevated tank. - Google Patents

Device for stopping electromotive driven centrifugal pumps conveying into an elevated tank.

Info

Publication number
AT131450B
AT131450B AT131450DA AT131450B AT 131450 B AT131450 B AT 131450B AT 131450D A AT131450D A AT 131450DA AT 131450 B AT131450 B AT 131450B
Authority
AT
Austria
Prior art keywords
stopping
elevated tank
centrifugal pumps
driven centrifugal
electromotive driven
Prior art date
Application number
Other languages
German (de)
Original Assignee
A D Sihl A G Vorm A Schmid Mas
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 A D Sihl A G Vorm A Schmid Mas filed Critical A D Sihl A G Vorm A Schmid Mas
Application granted granted Critical
Publication of AT131450B publication Critical patent/AT131450B/en

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



   Es ist bereits vorgeschlagen worden, zum Anlassen. Stillsetzen und Regeln der   Pumpen   von Druckwasserwerken ein Venturirohr in die Verbrauchsleitung der Pumpe einzuschalten und einen an der Einschnürung des Venturirohres gebildeten   Rin ! ; kanal durch eine Rohrleitung   mit dem Zylinder eines hydraulischen Druckreglers zu verbinden. 
 EMI1.2 
 von elektromotorisch angetriebenen, in einen Hochbehälter fördernden Kreiselpumpen, durch welche die Ausschaltung des Pumpenmotors bei Erreichen des Höchstwasserstandes im Behälter ohne Zuhilfenahme einer besonderen Verbindungsleitung irgendwelcher Art zwischen dem Behälter und der Pumpe ermöglicht werden soll. 



   Dies wird bei der   Einrichtung gemäss   der Erfindung dadurch erreicht, dass in die Druckleitung ein Venturirohr mit an die   Einschnürung   desselben   angeschlossenem Kontakt-Unterdruckmesser   und zwischen diesem und dem Hochbehälter ein durch einen   Schwimmer   bei   Erreichung des höchsten Wasser-   standes im Behälter zu   schliessendes   Abschlussorgan eingebaut ist, derart. dass durch den infolge   Schliessens   der   Druckleitung   durch das   Absehlussorgan   und Nachlassen des Unterdrucks im Venturirohr in Wirkung tretenden   Kontakt-Unterdruckmesser   ein die Ausschaltung des Pumpenmtors bewirkendes Relais betätigt wird. 
 EMI1.3 
 müssten. 



   Ein   Ausführunsbeispiel   des   Erfindungsgegenstandes   ist in der   Zeichnung   schematisch dargestellt.
2 ist die beim Saugbehälter 1 aufgestellte Kreiselpumpe, welche mit dem üblichen Abschlussschieber 3 versehen und mit einem Elektromotor J direkt gekuppelt ist. In die Druckleitung 5 ist ein 
 EMI1.4 
   Unterdruckmesser   7 in Verbindung steht. An die Kontakte des letzteren ist ein Relaisstromkreis R angeschlossen. Am oberen, in den   Hochbehälter   8   einmündenden   Ende der Druckleitung ; ist eine Abschlussklappe 9 angeordnet, welche durch einen   Hebelarm-M betätigt   wird. 
 EMI1.5 
 Wasserstand abschneidet. Der Schwimmer 12 ist mit dem Hebel 10 durch ein Seil 13 verbunden, an dessen unterem ein Gegengewicht 14 befestigt ist.

   Der Grund des   Schwimmerkastens H   ist mit dem Druckrohr 5 durch ein Ablaufrohr   15   verbunden, in welches ein Rückschlagventil 16 eingebaut ist, welches bloss ein Abfliessen des Wassers ans dem   Schwimmerkasten.   nicht aber einen Zufluss aus dem Druckrohr in denselben gestattet. 



   Am unteren Ende hat das Saugrohr den   üblichen   Seiherkorb 18, in welchem das Fussventil19 angeordnet ist, welches sich nach Stillsetzen der Pumpe unter dem Druck der   lastenden   Wassersäule   selbsttätig schliesst   und ein Abfliessen des Wassers aus dem Hoehbehälter nach dem Unterwasser verhindert. 



   Die Wirkungsweise der beschriebenen Einrichtung ist folgende :
Solange die   Pumpe ? fördert, erzeugt   die Strömung im Ringkanal 6a des Venturirohres einen 
 EMI1.6 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 




   <Desc / Clms Page number 1>
 
 EMI1.1
 



   It has already been suggested for starting. Shut down and regulate the pumps of pressurized waterworks, switch on a venturi tube in the consumption line of the pump and a ring formed at the constriction of the venturi tube! ; channel to connect by a pipe with the cylinder of a hydraulic pressure regulator.
 EMI1.2
 of centrifugal pumps driven by an electric motor, conveying into an elevated tank, by means of which the deactivation of the pump motor when the maximum water level in the tank is reached without the aid of a special connecting line of any kind between the tank and the pump is to be made possible.



   This is achieved in the device according to the invention in that a Venturi tube with a contact vacuum gauge connected to the constriction of the same and between this and the elevated tank is installed in the pressure line a closing element to be closed by a float when the highest water level in the tank is reached , like that. that by the closing of the pressure line by the shut-off element and the decrease in the negative pressure in the Venturi tube, a relay is actuated which causes the pump motor to be switched off.
 EMI1.3
 would have to.



   An exemplary embodiment of the subject matter of the invention is shown schematically in the drawing.
2 is the centrifugal pump set up at the suction container 1, which is provided with the usual closing slide 3 and is directly coupled to an electric motor J. In the pressure line 5 is a
 EMI1.4
   Vacuum gauge 7 is in communication. A relay circuit R is connected to the contacts of the latter. At the upper end of the pressure line opening into the elevated tank 8; a closing flap 9 is arranged, which is actuated by a lever arm-M.
 EMI1.5
 Water level cuts off. The float 12 is connected to the lever 10 by a rope 13 to the lower part of which a counterweight 14 is attached.

   The bottom of the float tank H is connected to the pressure pipe 5 by a drain pipe 15 in which a check valve 16 is built, which only allows the water to flow off the float tank. but not an inflow from the pressure pipe into the same.



   At the lower end of the suction tube has the usual strainer basket 18, in which the foot valve 19 is arranged, which closes automatically after the pump has stopped under the pressure of the heavy water column and prevents the water from flowing out of the high container to the underwater.



   The function of the device described is as follows:
As long as the pump? promotes, the flow in the annular channel 6a of the Venturi tube generates a
 EMI1.6
 

 <Desc / Clms Page number 2>

 
 EMI2.1


 

Claims (1)

EMI2.2 EMI2.2
AT131450D 1930-04-25 1931-04-16 Device for stopping electromotive driven centrifugal pumps conveying into an elevated tank. AT131450B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE526781T 1930-04-25

Publications (1)

Publication Number Publication Date
AT131450B true AT131450B (en) 1933-01-25

Family

ID=6553091

Family Applications (1)

Application Number Title Priority Date Filing Date
AT131450D AT131450B (en) 1930-04-25 1931-04-16 Device for stopping electromotive driven centrifugal pumps conveying into an elevated tank.

Country Status (4)

Country Link
AT (1) AT131450B (en)
CH (1) CH152815A (en)
DE (1) DE526781C (en)
FR (1) FR715550A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118532C2 (en) * 1991-06-06 1995-08-31 Peter Balogh Waterworks control system
DE102008010360B4 (en) * 2008-02-15 2020-02-27 Flux-Geräte GmbH pump means

Also Published As

Publication number Publication date
DE526781C (en) 1931-06-10
FR715550A (en) 1931-12-04
CH152815A (en) 1932-02-29

Similar Documents

Publication Publication Date Title
AT131450B (en) Device for stopping electromotive driven centrifugal pumps conveying into an elevated tank.
US2164253A (en) Well point
DE659106C (en) Installation on a pump system, in particular a Schoepfwerk system
DE497181C (en) Automatic suction device for centrifugal pumps
DE389388C (en) Air refill for water line pressure air vessel
DE530462C (en) Water supply system with additional pumping station
US334083A (en) Safety device for elevators
DE628113C (en) Liquid pump
DE610148C (en) Device for starting and overcoming large suction heights for portable, especially mobile pumps for fire extinguishing, irrigation and similar purposes
US1379309A (en) Automatic air and gas relief valve for oil-distributing systems
DE747262C (en) Automatic venting for centrifugal pumps
AT29802B (en) Equipment on pontoons for lifting sunken ships.
US1501951A (en) Air pump for wells
DE655675C (en) Setup on an automatically controlled pump system
DE439789C (en) Safety device for water pressure accumulator with compressed air
US1473512A (en) Automatic fluid-pressure displacement pump
AT61222B (en) Hydraulic air compressor.
AT139011B (en) Device for starting mobile pumps designed for different suction heights.
AT104200B (en) Device for draining measured amounts of liquid from a bottom container by means of a suction and pressure pump and a measuring device.
DE51907C (en) Airtight interim facility with backflow valve for water pressure lines for power and work machines
AT133723B (en) Water lifting device.
AT18825B (en) Pneumatic fluid lifters.
AT372578B (en) METHOD AND DEVICE FOR CLEANING MILKING VEHICLES
DE351605C (en) Fuel sucker
US1269900A (en) Controlling mechanism for windmills.