DE1955593C3 - Compressed air jet for centrifugal pump unit - Google Patents
Compressed air jet for centrifugal pump unitInfo
- Publication number
- DE1955593C3 DE1955593C3 DE19691955593 DE1955593A DE1955593C3 DE 1955593 C3 DE1955593 C3 DE 1955593C3 DE 19691955593 DE19691955593 DE 19691955593 DE 1955593 A DE1955593 A DE 1955593A DE 1955593 C3 DE1955593 C3 DE 1955593C3
- Authority
- DE
- Germany
- Prior art keywords
- compressed air
- turbine
- centrifugal pump
- pressure
- pump
- 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
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
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type
- F04D9/065—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type the driving fluid being a gas or vapour, e.g. exhaust of a combustion engine
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Reciprocating Pumps (AREA)
Description
net Der obere Teil der Treibdüse ist als Ventilsitz für den Ventilteller 3 ausgebildet. Neben der Treibdüse 2 befindet sich der Sitz 4 für den Teller 5 des Entlüftungsventils. net The upper part of the propellant nozzle is used as a valve seat for the valve disk 3 is formed. Next to the driving nozzle 2 is the seat 4 for the plate 5 of the vent valve.
Nicht dargestellt ist die Verbindung von der Kammer 7 mm Kompressor der Gasturbine und die Verbindung von der Kammer 8 zur Saugleitung der Kreiselpurripe. An das Gehäuseoberteil i ist das Gehäuseunterteil 6 mit der Fangdüse 9 angesetzt.The connection from the 7 mm compressor chamber of the gas turbine and the connection are not shown from the chamber 8 to the suction line of the centrifugal pipe. The lower housing part is attached to the upper housing part i 6 attached to the catch nozzle 9.
Die Ventilstößel 10 und 11 tragen an ihrem unteren Ende die Ventilteller 3 und 5. Auf die beiden Ventilstößel wird von der Druckfeder 12 über Kolben 13, Kolbenstange 14 und Hebel 15 eine Kraft ausgeübt, die beide Ventile geschlossen hält. Die erforderliche Federkraft kann mit Hilfe der Stellschraube 19 reguliert werden.The valve tappets 10 and 11 carry the valve disks 3 and 5 at their lower end. On the two The valve tappet is a force from the compression spring 12 via piston 13, piston rod 14 and lever 15 exercised, which keeps both valves closed. The required spring force can be adjusted with the help of the adjusting screw 19 are regulated.
Der Raum 16 unter dem Kolben 13 ist durch einen Kanal 117 mit dem Raum 7 verbunden. Über dem Kolben steht der Raum 18 mii dem Druckraum der Kreiselpumpe in Verbindung.The space 16 under the piston 13 is connected to the space 7 by a channel 117. Above that The piston is the space 18 with the pressure chamber of the Centrifugal pump in connection.
Durch die erfindungsgemäße Anordnung wird erreicht, daß bei Stillstand des Aggregates infolge der Kraft der Druckfeder 12 die Ventile 3 und 5 ge-The arrangement according to the invention ensures that when the unit comes to a standstill as a result of Force of the compression spring 12, the valves 3 and 5
»5 schlossen sind. Die Kammern 7 und 8 stehen also nicht in Verbindung mit der Fangdüse. »5 are closed. The chambers 7 and 8 are therefore not in connection with the collecting nozzle.
Wird die Gasturbine gestartet, dann strömt nach Erreichen der Betriebsdrehzahl Druckluft m die Kammer 7 und weiter über den Kanal 17 in den Raum 16. Die Kraft der Druckfeder wird dbei wunden und der Kolben 13 hochgedrückt. Durch die Aufwärtsbewegung des Kolbens werden die Ventilteller 3,5 über Kolbenstange 14, Hebel 15 und Vent.Istößel 10 11 angehoben. Durch die von der Treibdust; 2 in die Fangdüse 9 strömende Druckluft wird Luft aus der Pumpe und der Saugleitung durch die Kammer 8 und die Ventilbohrung 4 angsaugt und mitgerissen.When the gas turbine is started, the flow continues Reaching the operating speed compressed air m the chamber 7 and further via the channel 17 into the Room 16. The force of the compression spring is wounded and the piston 13 pushed up. By the upward movement of the piston, the valve disc 3.5 via the piston rod 14, lever 15 and valve plunger 10 11 raised. By the drift; 2 compressed air flowing into the collecting nozzle 9 turns out to be air the pump and the suction line sucked in through the chamber 8 and the valve bore 4 and carried away.
Nach völliger Entlüftung der Kreiselpumpe wird das Pumpenlaufrad beaufschlagL Damit beginnt die eigentliche Förderung. Der Pumpendruck wirkt über den Raum 18 auf den Kolben 13 und bewegt ihn nach unten. Dadurch werden die beiden Ventile 3 und 5 wieder geschlossen.After the centrifugal pump has been completely vented, pressure is applied to the pump impeller actual promotion. The pump pressure acts on the piston 13 via the space 18 and moves it downward. This closes the two valves 3 and 5 again.
Sollte aus irgendeinem Gru.id diese Automatik versagen, dann kann mit der am Hebel 15 angebrachten Handbetätigung ein Notbetrieb aufrechterhalten werden.Should for some reason this automatic fail, then emergency operation can be maintained with the manual override attached to the lever 15 will.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (2)
Kreiselpumpe durch die Wirkung des Förder- Es besteht bereits ein Vorschlag zur selbsttätigen drucks auf einen Kolben geschlossen werden, da- Entlüftung eines durch Turbine angetriebenen1. Compressed air jets are driven to ventilate a circular gas turbine and the venting pump, which is driven by a gas turbine, is operated with a compressed air junction from the compressed air jet, the turbine can be used to operate the compressed air jet and the like automatic actuation cannot be activated. Since the two simultaneously actuated valves, which the gas turbine requires a start-up time when starting, shut off the propellant nozzle and the suction line, impairments by connecting these two valves after venting the compressed air jet must be avoided.
Centrifugal pump through the action of the conveying There is already a proposal for automatic pressure to be closed on a piston, there- fore venting a turbine-driven one
Auspuff geleitet. 55 Diese Aufgabe wird erfindungsgemäß dadurch ge-pump is in communication. After completion of the automatic venting by means of compressed air jets venting process, lever actuation creates the type mentioned at the beginning, which with a safe valve in which the injector with the pump suction chamber reacts, ie with full safety for the line to be connected, it is closed again; the venting centrifugal pump, an impairment of the gas flow is avoided again in the normal way from the turbine driving the pump.
Exhaust pipe. 55 According to the invention, this object is achieved by
Auspuffventil so lange geschlossen, wie der Druck 65 Ein Ausführungsbeispiel der Erfindung ist in der der Pumpflüssigkeit noch nicht die vorbestimmte Zeichnung dargestellt und wird im folgenden näher Höhe erreicht hat. Der Abgasstrom wird bei ge- beschrieben,
schlossenem Auspuffventil durch einen Injektor ge- Im Gehäuseoberteil 1 ist die Treibdüse 2 aneeorH-In order to solve the operation of such a unit, that the two valves operated simultaneously, has already been proposed (USA, - in a manner known per se via a linkage with a patent specification 2 470 232), the actuation of the vent pistons are connected, whereby the piston with the processing device is automatically acted upon by the pressure of compressed air, which pressurizes this with the pressure side of the centrifugal pump to allow the gas turbine to reach the operating speed. A valve arranged in the exhaust line is connected to the existing pressure against the pressure of a spring in öffmit a membrane, which in turn moves over the direction of the valves. For a possible pipeline with the pressure side of the centrifugal emergencies, it is useful that the pump is in communication with the valves. A compression spring holds the linked linkage to attach hand levers.
The exhaust valve is closed as long as the pressure is 65. An embodiment of the invention is not yet shown in the pumping liquid the predetermined drawing and will be reached in more detail below. The exhaust gas flow is described at
closed exhaust valve by an injector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691955593 DE1955593C3 (en) | 1969-11-05 | 1969-11-05 | Compressed air jet for centrifugal pump unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691955593 DE1955593C3 (en) | 1969-11-05 | 1969-11-05 | Compressed air jet for centrifugal pump unit |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1955593A1 DE1955593A1 (en) | 1972-02-24 |
DE1955593B2 DE1955593B2 (en) | 1972-06-15 |
DE1955593C3 true DE1955593C3 (en) | 1973-01-04 |
Family
ID=5750171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691955593 Expired DE1955593C3 (en) | 1969-11-05 | 1969-11-05 | Compressed air jet for centrifugal pump unit |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1955593C3 (en) |
-
1969
- 1969-11-05 DE DE19691955593 patent/DE1955593C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1955593B2 (en) | 1972-06-15 |
DE1955593A1 (en) | 1972-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) |