DE1078446B - Device for increasing the pressure of working media flowing in pipelines, in particular water pipes, with a switching element which ensures the free flow - Google Patents
Device for increasing the pressure of working media flowing in pipelines, in particular water pipes, with a switching element which ensures the free flowInfo
- Publication number
- DE1078446B DE1078446B DEST12699A DEST012699A DE1078446B DE 1078446 B DE1078446 B DE 1078446B DE ST12699 A DEST12699 A DE ST12699A DE ST012699 A DEST012699 A DE ST012699A DE 1078446 B DE1078446 B DE 1078446B
- Authority
- DE
- Germany
- Prior art keywords
- pump
- line
- switching element
- pressure
- free flow
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft eine Vorrichtung zur Druckerhöhung von in Rohrleitungen, insbesondere Wasserleitungen, strömenden Arbeitsmitteln, bestehend aus einem Elektromotor, einer von diesem angetriebenen, außerhalb der Leitung angeordneten Kreiselpumpe und einem Schaltglied, das die arbeitende Pumpe in die Leitung einschaltet und beim Stillstand der Pumpe den freien -Durchfluß des Arbeitsmittels durch die Leitung gestattet.The invention relates to a device for increasing pressure in pipelines, in particular water pipes, flowing work equipment, consisting of an electric motor, one driven by this, centrifugal pump arranged outside the line and a switching element that switches the working pump into the line switches on and when the pump is at a standstill, the free flow of the working medium through the Management permitted.
Gemäß der Erfindung ist in einem zwischen Pumpe und Leitung liegenden Gehäuse ein weiteres Schaltglied angeordnet, das beim Abschalten der Pumpe durch den dann vor dieser herrschenden Überdruck in die Schließstellung gebracht wird und dadurch im Zusammenwirken mit dem ersteren Schaltglied, das ebenfalls durch diesen Überdruck in die Schließstellung gebracht wird, die Leitung so lange unterbricht, bis der Druck in der Leitung vor und hinter der Pumpe gleich groß ist.According to the invention, a further switching element is located in a housing between the pump and the line arranged that when the pump is switched off by the overpressure then prevailing in front of it is brought into the closed position and thereby in cooperation with the former switching element, the is also brought into the closed position by this overpressure, the line is interrupted for as long as until the pressure in the line upstream and downstream of the pump is the same.
Es ist bekannt, zum Schutz von Kreiselpumpen gegen die bei Betriebsstörungen zurückschlagende Wassersäule eine Rückschlagklappe in der Druckleitung anzuordnen. Diese Klappe liegt im Förderstrom, so daß sie beim Stillstand der Pumpe den freien Durchfluß des Arbeitsmittels behindert. Bekannt ist ferner, die Ansaugleitung von Zentrifugalpumpen mit einem Rückschlagventil zu versehen, das ebenfalls im Förderstrom liegt.It is known to protect centrifugal pumps from kicking back in the event of malfunctions Water column to arrange a non-return valve in the pressure line. This flap is in the flow, so that it hinders the free flow of the working medium when the pump is at a standstill. Known is also to provide the suction line of centrifugal pumps with a check valve that is also in the flow.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.An exemplary embodiment of the invention is shown in the drawing.
Fig. 1 zeigt die Vorrichtung bei laufender Pumpe. Sie besteht im wesentlichen aus einem Elektromotor a, einer von diesem angetriebenen, außerhalb der Rohrleitung c an einem in diese eingebauten Gehäuse d befestigten Kreiselpumpe b und einem in diesem Gehäuse angeordneten, als Klappe ausgebildeten Schaltglied e. Dieses Schaltglied verhindert bei laufender Pumpe den freien Durchfluß des Arbeitsmittels durch die Leitung bzw. das Gehäuse und bewirkt, daß das Arbeitsmittel von der Pumpe angesaugt und nach Druckerhöhung unter Umgehung der geschlossenen Klappe e in die Leitung zurückgefördert wird.Fig. 1 shows the device with the pump running. It consists essentially of an electric motor a, a centrifugal pump b which is driven by the latter and is attached outside the pipeline c to a housing d built into it, and a switching element e designed as a flap and arranged in this housing. This switching element prevents the free flow of the working medium through the line or the housing when the pump is running and causes the working medium to be sucked in by the pump and, after increasing the pressure, returned to the line by bypassing the closed flap e.
Fig. 2 zeigt die Vorrichtung bei nicht arbeitender Pumpe. Dabei ist die Klappe e geöffnet, so daß das Arbeitsmittel ungehindert durch die Leitung und das Gehäuse strömen kann.Fig. 2 shows the device with the pump inoperative. The flap e is open so that the working fluid can flow unhindered through the line and the housing.
Die Stellung der beweglichen Teile im Augenblick der Abschaltung der Pumpe ist in Fig. 3 dargestellt. Dabei sind die beiden Schaltglieder f und e durch den vor der Pumpe herrschenden Überdruck des Arbeitsmittels in die Schließstellung gebracht worden, wodurch die Leitung unterbrochen ist. Der vor der Pumpe herrschende Überdruck kann daher nicht hinter die Pumpe entweichen, so daß er nicht als Druck-The position of the moving parts at the moment the pump is switched off is shown in FIG. The two switching elements f and e have been brought into the closed position by the overpressure of the working medium prevailing in front of the pump, whereby the line is interrupted. The overpressure prevailing in front of the pump can therefore not escape behind the pump, so that it does not act as a pressure
Vorrichtung zur DruckerhöhungDevice for increasing pressure
von in Rohrleitungen,
insbesondere Wasserleitungen,of in pipelines,
especially water pipes,
strömenden Arbeitsmittelnflowing work equipment
mit einem den freien Durchflußwith one the free flow
gewährenden Schaltgliedgranting switching element
Anmelder:Applicant:
Stange-Unterwasserpumpen G. m. b. H.,
Kiel-EllerbekRod submersible pumps G. mb H.,
Kiel-Ellerbek
Hans Voigt, Preetz (Holst.),
ist als Erfinder genannt wordenHans Voigt, Preetz (Holst.),
has been named as the inventor
reserve verlorengeht, was der Fall sein würde, wenn das zweite Schaltglied f nicht vorhanden wäre.reserve is lost, which would be the case if the second switching element f were not present.
Wenn der Druck vor der Pumpe durch Entnahme von Arbeitsmitteln aus der Leitung so weit gesunken ist, daß vor und hinter der Pumpe der gleiche Druck herrscht, öffnen sich selbsttätig die beiden Schaltglieder und nehmen die Stellungen nach Fig. 2 ein. Hierbei sowie bei laufender Pumpe (Fig. 1) ist das Schaltglied f unwirksam.When the pressure in front of the pump has dropped so far by removing working fluids from the line that the same pressure prevails in front of and behind the pump, the two switching elements open automatically and assume the positions according to FIG. Here, as well as when the pump is running (Fig. 1), the switching element f is ineffective.
Dadurch, daß dieses Schaltglied in dem zwischen Pumpe und Leitung liegenden Gehäuse d angeordnet ist, wird bewirkt, daß es bei nicht arbeitender Pumpe den freien Durchfluß des Arbeitsmittels durch die Leitung und das Gehäuse nicht behindert und keine Querschnittsverengung in diesen verursacht. The fact that this switching element is arranged in the housing d located between the pump and the line ensures that when the pump is not working it does not hinder the free flow of the working medium through the line and the housing and does not cause a cross-sectional constriction in these.
In dem Gehäuse d ist erfindungsgemäß außerdem der Ventilsitz eines Regelventils g angeordnet, das eine Veränderung der Fördermenge oder Förderhöhe ermöglicht. Da der Ventilsitz in der Gehäusewand liegt, wird auch hierdurch der freie Durchfluß des Arbeitsmittels nicht behindert.According to the invention, the valve seat of a control valve g is also arranged in the housing d , which valve seat enables the delivery rate or delivery height to be changed. Since the valve seat lies in the housing wall, the free flow of the working medium is not hindered by this either.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST12699A DE1078446B (en) | 1957-06-27 | 1957-06-27 | Device for increasing the pressure of working media flowing in pipelines, in particular water pipes, with a switching element which ensures the free flow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST12699A DE1078446B (en) | 1957-06-27 | 1957-06-27 | Device for increasing the pressure of working media flowing in pipelines, in particular water pipes, with a switching element which ensures the free flow |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1078446B true DE1078446B (en) | 1960-03-24 |
Family
ID=7455796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEST12699A Pending DE1078446B (en) | 1957-06-27 | 1957-06-27 | Device for increasing the pressure of working media flowing in pipelines, in particular water pipes, with a switching element which ensures the free flow |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1078446B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE365762C (en) * | 1922-12-21 | Heinrich Hof | Control and protection device for centrifugal pumps for installation in horizontal and vertical position | |
GB389759A (en) * | 1932-10-10 | 1933-03-23 | Holden & Brooke Ltd | Improvements in or relating to pump arrangements for hot water circulating systems |
CH194827A (en) * | 1936-11-23 | 1937-12-31 | Sulzer Ag | Installation on centrifugal pumps, the suction line of which is provided with a non-return device. |
FR852504A (en) * | 1938-10-08 | 1940-02-26 | Emile Salmson Fils De | Improvements to direct axial flow circulation pumps |
-
1957
- 1957-06-27 DE DEST12699A patent/DE1078446B/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE365762C (en) * | 1922-12-21 | Heinrich Hof | Control and protection device for centrifugal pumps for installation in horizontal and vertical position | |
GB389759A (en) * | 1932-10-10 | 1933-03-23 | Holden & Brooke Ltd | Improvements in or relating to pump arrangements for hot water circulating systems |
CH194827A (en) * | 1936-11-23 | 1937-12-31 | Sulzer Ag | Installation on centrifugal pumps, the suction line of which is provided with a non-return device. |
FR852504A (en) * | 1938-10-08 | 1940-02-26 | Emile Salmson Fils De | Improvements to direct axial flow circulation pumps |
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