DE326866C - Air suction device for centrifugal pumps - Google Patents
Air suction device for centrifugal pumpsInfo
- Publication number
- DE326866C DE326866C DENDAT326866D DE326866DD DE326866C DE 326866 C DE326866 C DE 326866C DE NDAT326866 D DENDAT326866 D DE NDAT326866D DE 326866D D DE326866D D DE 326866DD DE 326866 C DE326866 C DE 326866C
- Authority
- DE
- Germany
- Prior art keywords
- suction
- impeller
- suction device
- air suction
- centrifugal pumps
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/004—Priming of not self-priming pumps
- F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid
-
- 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
- F04D15/0027—Varying behaviour or the very pump
- F04D15/0038—Varying behaviour or the very pump by varying the effective cross-sectional area of flow through the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Luftabsaugvorrichtung für Kreiselpumpen. Die Figuren stellen eine Kreiselpumpe dar, welche durch Anordnung eines einschaltbaren Saugraumes a imstande ist, Luft zu saugen. Um den Saugeintritt b ist ein mittels Zahnrad d in achsialer Richtung verschiebbarer hohler Kolben c angeordnet, welcher den Hilfssaugraum a enthält, welcher zugleich eine Verbindung zwischen dem Umlauf e und dem Laufradeintritt frei f herstellt. Wird der Kolben c vom Laufrad weggeschoben, dann ist der Laufradeintritt f vollständig frei, der normale Saugraum ist mit dem Laufrad in Verbindung und der Wassereintritt bei g geschlossen. Der Kolben besitzt vor den Laufradschaufeln noch freie Stellen k, durch welche das Laufrad mit dem Saugraum b in Verbindung steht.Air suction device for centrifugal pumps. The figures represent a Centrifugal pump, which is capable of arranging a switchable suction chamber a is to suck air. To the suction inlet b is a means of gear d in axial Direction of displaceable hollow piston c arranged, which the auxiliary suction space a contains, which at the same time a connection between the circulation e and the impeller inlet free f manufactures. If the piston c is pushed away from the impeller, the impeller is entered f completely free, the normal suction chamber is in connection with the impeller and the Water inlet closed at g. The piston still has before the impeller blades free spots k through which the impeller is connected to the suction chamber b.
Die Arbeitsweise der Pumpe ist folgende Die mit Wasser gefüllte Pumpe läßt man anlaufen, hierauf schiebt man den Kolben c in das Laufrad f und öffnet den Schieber h; ist dies erfolgt, läuft das Wasser durch g in den Kolben c, durch den Saugraum a, das Laufrad f, das Gehäuse i und den Umlauf e dauernd um. Während des Umlaufes wird das Wasser bei g so gedrosselt, daß am Laufradeintritt f und im Saugraum a eine hohe Saugspannung entsteht.. Infolge dieser künstlich erzeugten Saugspannung wird die Luft aus dem Saugrohr b durch die freien Kanäle k so lange abgesaugt, bis die zu fördernde Flüssigkeit in das Laufrad f eintritt und die Pumpe normal fördert. Die abgesaugte Luft scheidet sich oben im Gehäuse i ab und entweicht durch das Druckrohr 1. Ist das Wasser angesaugt und fördert die Pumpe, dann wird der Kolben c aus dem Laufrad zurückgeschoben und der Wasserumlauf bei g gleichzeitig geschlossen, so daß die Pumpe als normale Kreiselpumpe arbeitet. Bei Verwendung der Pumpe zum Evakuieren bleibt der Kolben c im Laufrad f stehen, das Umlaufwasser wird in diesem Falle gekühlt, damit die Pumpe für Dauerbetrieb geeignet ist.The pump works as follows: The pump filled with water is allowed to start, then the piston c is pushed into the impeller f and the slide h is opened; Once this has taken place, the water continuously circulates through g into piston c, through suction chamber a, impeller f, housing i and circulation e. During the circulation, the water is throttled at g so that a high suction tension arises at the impeller inlet f and in the suction chamber a. As a result of this artificially generated suction tension, the air is sucked out of the suction pipe b through the free channels k until the pumped Liquid enters the impeller f and the pump delivers normally. The extracted air is deposited in the top of the housing i and escapes through the pressure pipe 1. If the water is sucked in and promotes the pump, then the piston c is pushed back out of the impeller and the water circulation is closed at g at the same time, so that the pump works as a normal centrifugal pump is working. When using the pump for evacuation, the piston c remains in the impeller f, the circulating water is cooled in this case so that the pump is suitable for continuous operation.
Zu bemerken ist noch, daß das Absaugen. der Luft nicht wie bei bekannten Entlüftungsvorrichtungen durch die Strömungsgeschwindigkeit des Wassers- im Saugraum (Ejektorwirkung), sondern durch die Saugspannung am Laufradeintritt erfolgt, welche durch die vorstehende Anordnung erzeugt wird.It should also be noted that the suction. the air not as with known ones Ventilation devices through the flow rate of the water in the suction chamber (Ejector effect), but through the suction tension at the impeller inlet, which is generated by the above arrangement.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE326866T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE326866C true DE326866C (en) | 1920-10-04 |
Family
ID=6184369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT326866D Expired DE326866C (en) | Air suction device for centrifugal pumps |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE326866C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE752106C (en) * | 1933-03-12 | 1952-05-19 | Jaeger Machine Co | Self-priming centrifugal pump |
| US2865297A (en) * | 1952-12-22 | 1958-12-23 | Thompson Prod Inc | Injector cover for pumps |
| US2874642A (en) * | 1955-10-05 | 1959-02-24 | Allis Chalmers Mfg Co | Adjustable bypass valve |
| DE1083655B (en) * | 1956-10-10 | 1960-06-15 | Sulzer Ag | Process for manufacturing centrifugal pumps with different inlet cross-sections and pumps manufactured accordingly |
| DE4327735A1 (en) * | 1993-08-18 | 1995-02-23 | Grundfos As | Device for supplying liquid |
-
0
- DE DENDAT326866D patent/DE326866C/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE752106C (en) * | 1933-03-12 | 1952-05-19 | Jaeger Machine Co | Self-priming centrifugal pump |
| US2865297A (en) * | 1952-12-22 | 1958-12-23 | Thompson Prod Inc | Injector cover for pumps |
| US2874642A (en) * | 1955-10-05 | 1959-02-24 | Allis Chalmers Mfg Co | Adjustable bypass valve |
| DE1083655B (en) * | 1956-10-10 | 1960-06-15 | Sulzer Ag | Process for manufacturing centrifugal pumps with different inlet cross-sections and pumps manufactured accordingly |
| DE4327735A1 (en) * | 1993-08-18 | 1995-02-23 | Grundfos As | Device for supplying liquid |
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