DE284674C - - Google Patents
Info
- Publication number
- DE284674C DE284674C DENDAT284674D DE284674DA DE284674C DE 284674 C DE284674 C DE 284674C DE NDAT284674 D DENDAT284674 D DE NDAT284674D DE 284674D A DE284674D A DE 284674DA DE 284674 C DE284674 C DE 284674C
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- pumping chamber
- atmosphere
- atmospheric pressure
- check 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.)
- Active
Links
- 238000005086 pumping Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000007906 compression Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002452 interceptive Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/005—Details concerning the admission or discharge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei Gebläsen mit kreisendem Flügelrad in einem Sperrflüssigkeitsring zeigt sich der Übelstand, daß bei sehr hohem Vakuum, z. B. beim Anlassen der Pumpe bei geschlossener Saugeleitung, das hochverdünnte Gas beim Erreichen der Drucköffnung noch nicht auf atmosphärischen Druck verdichtet ist, wodurch an der Drucköffnung Wirbelungen der Sperrflüssigkeit verursacht werden, die mit störendem Geräusch verbunden sind.In the case of blowers with a rotating impeller in a sealing liquid ring, the disadvantage is shown, that at a very high vacuum, e.g. B. when starting the pump with the suction line closed, the highly diluted gas when Reaching the pressure opening is not yet compressed to atmospheric pressure, whereby eddies of the barrier fluid are caused at the pressure opening, which is interfering with Associated with noise.
Die vorliegende Erfindung bezweckt nun, durch Einleiten einer entsprechenden Menge atmosphärischer Luft in den Förderraum eine Verdichtung hervorzurufen, die mindestens dem atmosphärischen Druck entspricht, ohne daß das Vakuum an der Saugöffnung hierdurch sinkt. The present invention now aims by introducing an appropriate amount atmospheric air in the conveying chamber to cause compression that is at least corresponds to atmospheric pressure without reducing the vacuum at the suction opening.
Die Zeichnung veranschaulicht schematisch ein Ausführungsbeispiel.The drawing schematically illustrates an embodiment.
In dem Gehäuse 1 ist das Schleuderrad 2 in bekannter Weise exzentrisch gelagert; der strichpunktierte Kreis 3 deutet die innere Begrenzung des rotierenden Wasserringes an, die zugleich die äußere Begrenzung des Förderraumes ist. 4 und 5 zeigen die in der Gehäusestirnwand angeordneten Druck- und Saugöffnungen.In the housing 1, the centrifugal wheel 2 is mounted eccentrically in a known manner; the The dash-dotted circle 3 indicates the inner limitation of the rotating water ring, which is at the same time the outer boundary of the conveying space. 4 and 5 show the in FIG Housing front wall arranged pressure and suction openings.
Wird bei einer solchen Pumpe mit geschlossener Saugeleitung gearbeitet, so entsteht im Förderraum ein so hohes Vakuum, daß der absolute Druck in den jeweils die Drucköffnung 4 passierenden Radzellen den atmosphärischen Druck noch nicht erreicht.If such a pump is used with a closed suction line, this results in in the pumping chamber such a high vacuum that the absolute pressure in the wheel cells passing through the pressure opening 4 is the atmospheric pressure has not yet been reached.
Verbindet man aber den Förderraum mit der Atmosphäre, z. B. mittels eines Rohres 7, 3S so tritt bei hohem Vakuum Luft in den Förderraum, die nun zusammen mit der eigentlich zu fördernden Luftmenge in den immer kleiner werdenden Zellen bis auf atmosphärischen Druck verdichtet wird.But if you connect the pumping chamber with the atmosphere, e.g. B. by means of a pipe 7, 3 S so occurs at high vacuum air in the pumping chamber, which is now compressed together with the actual amount of air to be pumped in the increasingly smaller cells to atmospheric pressure.
Damit bei niedrigem Vakuum, wenn also das zu fördernde Gas wesentlich vor Erreichung der Auspufföffnung einen den atmosphärischen überschreitenden Druck erreicht, das Gas nicht durch das Rohr 7 entweichen kann, wird in dieses Rohr zweckmäßig ein Rückschlagventil 8 eingebaut.This means that at a low vacuum, i.e. when the gas to be pumped is significantly before it is reached the exhaust port reaches a pressure exceeding atmospheric pressure, the gas does not can escape through the pipe 7, a check valve 8 is expediently in this pipe built-in.
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE284674C true DE284674C (en) |
Family
ID=540126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT284674D Active DE284674C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE284674C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2323902A1 (en) * | 1975-09-15 | 1977-04-08 | Siemens Ag | LIQUID RING COMPRESSOR WITHOUT RISK OF CAVITATION |
US4083658A (en) * | 1976-09-08 | 1978-04-11 | Siemens Aktiengesellschaft | Liquid ring compressor including a calibrated gas input opening |
EP0138182A2 (en) * | 1983-10-18 | 1985-04-24 | Siemens Aktiengesellschaft | Liquid ring pump |
DE19913633A1 (en) * | 1999-03-25 | 2000-10-05 | Siemens Ag | Liquid ring compressor for liquid ring pumps |
-
0
- DE DENDAT284674D patent/DE284674C/de active Active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2323902A1 (en) * | 1975-09-15 | 1977-04-08 | Siemens Ag | LIQUID RING COMPRESSOR WITHOUT RISK OF CAVITATION |
US4083658A (en) * | 1976-09-08 | 1978-04-11 | Siemens Aktiengesellschaft | Liquid ring compressor including a calibrated gas input opening |
EP0138182A2 (en) * | 1983-10-18 | 1985-04-24 | Siemens Aktiengesellschaft | Liquid ring pump |
US4565498A (en) * | 1983-10-18 | 1986-01-21 | Siemens Aktiengesellschaft | Rotary gas compressor |
US4610602A (en) * | 1983-10-18 | 1986-09-09 | Siemens Aktiengesellschaft | Rotary gas compressor |
EP0138182B1 (en) * | 1983-10-18 | 1988-03-09 | Siemens Aktiengesellschaft | Liquid ring pump |
DE19913633A1 (en) * | 1999-03-25 | 2000-10-05 | Siemens Ag | Liquid ring compressor for liquid ring pumps |
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