AT52890B - Device to switch several feed devices of a pressure medium supply on and off one after the other according to the fluctuations in use. - Google Patents

Device to switch several feed devices of a pressure medium supply on and off one after the other according to the fluctuations in use.

Info

Publication number
AT52890B
AT52890B AT52890DA AT52890B AT 52890 B AT52890 B AT 52890B AT 52890D A AT52890D A AT 52890DA AT 52890 B AT52890 B AT 52890B
Authority
AT
Austria
Prior art keywords
fluctuations
feed devices
pressure medium
medium supply
several feed
Prior art date
Application number
Other languages
German (de)
Inventor
Walter Ernst
Original Assignee
Walter Ernst
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 Walter Ernst filed Critical Walter Ernst
Application granted granted Critical
Publication of AT52890B publication Critical patent/AT52890B/en

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  • Control Of Positive-Displacement Pumps (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Einrichtung, um mehrere Speisevorrichtungen einer Druckmittelversorgung entsprechend den   Gebrauch88chwankungen   nacheinander ein-und auszuschalten. 



   Gegenstand der vorliegenden Erfindung ist eine selbsttätige   Rege ! ungavorrichtung   zur Versorgung eines   Leitungsnetzes   oder einer Einzelstelle mit Druckmitteln, beispielsweise Druckluft oder besonders Druckwasser. 



   Es handelt sich hiebei darum, dem Verbrauche an Druckflüssigkeit entsprechend in der Zentrale Pumpen oder Kompressoren zu-oder abzuschalten. 



   Dies wurde bei bisherigen Anordnungen dadurch bewirkt, dass entsprechend dem mit der Belastung schwankenden Druck in einem Windkessel ein Schaltglied die erforderlichen Masthinen-   sätzf anliess   oder stillsetzte. Diese Druckschwankungen sind aber für die Verbrauchsstelle in der durch diese Art der Regelung zugelassenen Stärke unerwünscht. 



   Demgegenüber besteht das Wesen der Neuerung darin, dass unabhängig vom Druck in der Zentrale, allein entsprechend der Geschwindigkeit des   Flüssigkeitsstromes,   die in einem starren, d. h. stets gleichbleibenden Querschnitt des Rohres stets der Menge der durchströmenden, mithin verbrauchten Flüssigkeit entspricht, das Schaltglied beeinflusst wird. 



   Die Schaltvorrichtung besteht erfindungsgemäss nach Art der Wassermesser aus einer im Flüssigkeitsstrome liegenden und von der Flüssigkeit entsprechend seiner Geschwindigkeit nur dynamisch beanspruchten Scheibe, die gegen Federkraft einen Schalter, z. B. einen elektrischen, bewegt, der seinerseits unmittelbar oder unter Zwischenschaltung von Hilfsapparaten, beispiels- weise auch Zeitrelais, die Maschinensätze anlässt oder stillsetzt. 



   Selbstverständlich könnte die gesamte Schaltung auch rein mechanisch oder hydraulisch vorgenommen werden. Der Druck in der Zentrale kann dabei angenähert gleichbleibend erhalten oder sogar zum ausgleich des mit der Geschwindigkeit im Rohr zunehmenden Druckabfalles   bei erhöhter   Belastung des Netzes erhöht werden. 



   Auf der Zeichnung ist die Erfindung schematisch zur Darstellung gebracht. 



   Durch a seien die Pumpen dargestellt, die Wasser in eine gemeinsame Druckleitung b hinein-   dt'iicken.   In diese ist die von den statischen   Druckverhältnissen   in der Leitung nur unwesentlich 
 EMI1.1 
 Geschwindigkeitsdrucke entgegen einer äusseren Kraft, z. B. der einer Feder, verschieden verstellt. Mittels eines Gestänges wird dadurch ein Schaltglied über die in dessen Bereich hintereinander 
 EMI1.2 
 eingeschaltet; die Ausschaltung findet bei zurückgehender Wasserentnahme in der umgekehrten Reihenfolgestatt. 



   Bei kleineren Anlagen genügt für die Einschaltung der ersten Pumpe, dass in dem Druck- 
 EMI1.3 
 kolben verwendet werden, und die Einschaltung der ersten Pumpe kann mit diesem in Verbindung gebrachtwerden. 



   Statt der elektrischen Kontakte d könnte man auch andere Schaltungsmittel verwenden, 
 EMI1.4 
 

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



   <Desc / Clms Page number 1>
 



  Device to switch several feed devices of a pressure medium supply on and off one after the other according to the fluctuations in use.



   The subject of the present invention is an automatic rule! ungvorrichtung for supplying a pipe network or an individual point with pressure media, for example compressed air or especially pressurized water.



   It is a matter of switching pumps or compressors on or off in the central unit according to the consumption of hydraulic fluid.



   In previous arrangements, this was achieved by a switching element starting or stopping the required mastheads in accordance with the pressure fluctuating with the load in an air tank. However, these pressure fluctuations are undesirable for the point of consumption in the strength permitted by this type of regulation.



   In contrast, the essence of the innovation is that regardless of the pressure in the control center, solely according to the speed of the flow of liquid, which in a rigid, i.e. H. The constant cross-section of the pipe always corresponds to the amount of liquid flowing through, therefore consumed, which influences the switching element.



   The switching device consists according to the invention in the manner of the water knife from a lying in the liquid stream and only dynamically stressed by the liquid according to its speed disc, which against spring force a switch, z. B. an electrical one moves, which in turn starts or stops the machine sets directly or with the interposition of auxiliary equipment, for example also timing relays.



   Of course, the entire circuit could also be carried out purely mechanically or hydraulically. The pressure in the control center can be kept approximately constant or even increased to compensate for the pressure drop, which increases with the speed in the pipe, with increased load on the network.



   The invention is shown schematically in the drawing.



   Let a represent the pumps that force water into a common pressure line b. In these, the static pressure conditions in the line are only insignificant
 EMI1.1
 Velocity pressures against an external force, e.g. B. that of a spring, adjusted differently. By means of a linkage, a switching element is thereby one behind the other in its area
 EMI1.2
 switched on; The switch-off takes place in the reverse order when the water withdrawal decreases.



   For smaller systems, it is sufficient to switch on the first pump that in the pressure
 EMI1.3
 piston can be used and the activation of the first pump can be associated with this.



   Instead of the electrical contacts d one could also use other circuit means,
 EMI1.4
 

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

 

Claims (1)

äusseren Kraft mehr oder weniger verschoben wird, ein Schaltglied für die in dessen Bereich hintereinander liegenden schaltstellen (d) der ein- und auszuschaltenden Speisevorrichtungen (a) bewegt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. external force is shifted more or less, a switching element for the switching points (d) of the feed devices (a) to be switched on and off that are located one behind the other in its area is moved. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT52890D 1910-07-01 1911-06-08 Device to switch several feed devices of a pressure medium supply on and off one after the other according to the fluctuations in use. AT52890B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE52890X 1910-07-01

Publications (1)

Publication Number Publication Date
AT52890B true AT52890B (en) 1912-03-26

Family

ID=5627457

Family Applications (1)

Application Number Title Priority Date Filing Date
AT52890D AT52890B (en) 1910-07-01 1911-06-08 Device to switch several feed devices of a pressure medium supply on and off one after the other according to the fluctuations in use.

Country Status (1)

Country Link
AT (1) AT52890B (en)

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