DE1955593B2 - COMPRESSED AIR JET FOR CENTRIFUGAL PUMP UNIT - Google Patents
COMPRESSED AIR JET FOR CENTRIFUGAL PUMP UNITInfo
- Publication number
- DE1955593B2 DE1955593B2 DE19691955593 DE1955593A DE1955593B2 DE 1955593 B2 DE1955593 B2 DE 1955593B2 DE 19691955593 DE19691955593 DE 19691955593 DE 1955593 A DE1955593 A DE 1955593A DE 1955593 B2 DE1955593 B2 DE 1955593B2
- Authority
- DE
- Germany
- Prior art keywords
- compressed air
- centrifugal pump
- turbine
- pump
- valve
- 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.)
- Granted
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 Kam· s mer 7 zum Kompressor der Gasturbine und die Verbindung von der Kammer 8 zur Saugleitung der Kreiselpumpe, An das Gehäuseoberteil 1 ist das Gehäuseunterteil 6 mit der Fangdüse 9 angesetzt.Not shown is the connection from the Kam · s mer 7 to the compressor of the gas turbine and the connection of the chamber 8 to the suction line of the centrifugal pump, to the housing upper part 1, the lower housing part is fitted with the receiving nozzle 6. 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, onto 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 17 mit dem Raum 7 verbunden. Über dem Kolben steht der Raum 18 mit dem Druckraum der Kreiselpumpe in Verbindung.The space 16 under the piston 13 is connected to the space 7 by a channel 17. Above that Piston, the space 18 is connected to the pressure space of the centrifugal pump.
Durch die erfindungsgemäße Anordnung wird erreicht, daß bei Stillstand des Aggregates infolge der Kraft der Druckfeder 12 die Ventile 3 und 5 geschlossen sind. Die Kammern 7 und 8 stehen also nicht in Verbindung mit der Fangdüse.The arrangement according to the invention ensures that when the unit comes to a standstill as a result of The valves 3 and 5 are closed by force of the compression spring 12. The chambers 7 and 8 are so not in connection with the collecting nozzle.
Wird die Gasturbine gestartet, dann ström nach Brächen der Betriebsdrehzahl Druckluft in die Kammer 7 und weiter über den Kanal 17 in den KiVm 1(5 Die Kraft der Druckfeder wird Uberwund\nTnd der Kolben 13 hochgedrUckt. Durch die Auf-Ätsbewegung deS Kolbens" werden die Ventilteller 35 übeTKorbenstange 14, Hebel 15 uncI Vent, stößel 10,11 angehoben. Durch die von der Treibdüse 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, compressed air flows into it after the operating speed has broken Chamber 7 and further via channel 17 into KiVm 1 (5 The force of the compression spring is overcome \ nTnd the piston 13 is pushed up. Through the up and down movement of the piston "are the valve disks 35 overbench rod 14, lever 15 and vent, plunger 10.11 raised. By the propulsion nozzle 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 beaufschlagt. Damit beginnt die eigentliche Förderung. Der Pumpendruck wirkt über degn Raum 18 auf den Kolben 13 und beweg ihn nach unten. Dadurch werden die beiden Ventile 3 und 5 wieder geschlossen.After the centrifugal pump has been completely vented, the pump impeller is pressurized. This is where the actual promotion begins. The pump pressure acts via de g n space 18 on the piston 13, Move it down. This closes the two valves 3 and 5 again.
Sollte aus irgendeinem Grund diese Automatik versagen, dann kann mit der am Hebel 15 angebrachten Handbetätigung ein Notbetrieb aufrechterhalten werden.Should this automatic system fail for any reason, then the one attached to the lever 15 can be used Manual operation an emergency operation can be maintained.
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 angetriebenen durch gekennzeichnet, daß die beiden Kreiselpumpenaggregates (deutsche Patentschrift gleichzeitig betätigten Ventile (3, 5) in an sich be- 300 503). Bei der bekannten Einrichtung wird davon kannter Weise, über ein Gestänge (14, 15) mit 15 ausgegangen, daß die Turbine ihre Höchstdrehzahl einem Kolben (13) verbunden sind, wobei der überschreitet, sobald die Pumpe Luft saugt und damit Kolben (13) mit Druckluft beaufschlagt wird, die die Belastung absinkt. Durch einen an die Turbine diesen mit dem bei Erreichen der Betriebsdreh- angeschlossenen Fliehkraftregler wird bei Erreichen zahl der Gasturbine vorhandenen Druck gegen einer vorgegebenen Drehzahl ein in der zur Turbine den Druck einer Feder (12) in Öffnungsrichtung ao führenden Rohrleitung angeordnetes Drosselorgan der Ventile (3, 5) verschiebt. teilweise geschlossen, wodurch ein Druckunterschied1. Compressed air jets are driven for venting 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 pelt turbine can be used to operate the compressed air jet and the like do not use automatic actuation. 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, because venting of a turbine driven by the fact that the two centrifugal pump units (German patent simultaneously operated valves (3, 5) in itself be - 300 503). In the known device it is assumed in a known manner, via a linkage (14, 15) with 15, that the turbine is connected to its maximum speed with a piston (13), which exceeds as soon as the pump sucks in air and thus piston (13) with it Compressed air is applied, which decreases the load. By means of a centrifugal governor connected to the turbine when the operating speed is reached, a throttle element of the valves (3 , 5) moves. partially closed, creating a pressure difference
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 true DE1955593B2 (en) | 1972-06-15 |
DE1955593C3 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 |
---|---|
DE1955593C3 (en) | 1973-01-04 |
DE1955593A1 (en) | 1972-02-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1628144C3 (en) | Suction throttle control device | |
DE3223293A1 (en) | FUEL SYSTEM FOR A GAS TURBINE ENGINE | |
DE102005040921B4 (en) | Dry running screw compressor with pneumatically controlled vent valve | |
DE2807514C3 (en) | Diaphragm pump | |
DE1955593C3 (en) | Compressed air jet for centrifugal pump unit | |
DE2303974C3 (en) | Fuel supply arrangement for a gas turbine engine | |
DE1280617B (en) | Carburettors for internal combustion engines | |
DE2924222C2 (en) | Control valve arrangement for a device for generating negative pressure for negative pressure consuming systems | |
DE927358C (en) | Control device for the fuel supply of internal combustion engines | |
DE2261557C3 (en) | Carburettors for internal combustion engines with acceleration pumps | |
DE698447C (en) | Diaphragm pressure regulator for internal combustion engines operated with compressed gas | |
DE1147856B (en) | Compressed air generation system, especially for compressed air consumers in motor vehicles | |
DE6929590U (en) | COMPRESSED AIR JET FOR CENTRIFUGAL PUMP UNITS | |
DE472552C (en) | Control of a shut-off device located in the vacuum line of a mercury vapor rectifier | |
DE2905144C2 (en) | Acceleration pump for carburettors of internal combustion engines | |
DE268544C (en) | ||
DE2363336B2 (en) | Valve device for the additional air supply in exhaust gas afterburning systems on internal combustion engines | |
DE820654C (en) | Device for regulating the generation of negative pressure in injection internal combustion engines, in particular for the brakes in motor vehicles | |
DE299875C (en) | ||
DE1551208C (en) | Protection device for condensation turbines | |
DE322628C (en) | Pump system operated by means of air rods | |
DE1162636B (en) | Device for emptying the fuel return lines of gas turbine engines | |
DE2233558A1 (en) | DEVICE FOR THE AUTOMATIC CONTROL OF PRESSURE-SAFE VALVES ON FUEL PUMPS FOR COMBUSTION ENGINES | |
DE1600789C (en) | Vacuum switching valve | |
DE685993C (en) | Starting device for internal combustion aviation piston engines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) |