EP0956452A1 - Laufrad für eine flüssigkeitsringmaschine - Google Patents
Laufrad für eine flüssigkeitsringmaschineInfo
- Publication number
- EP0956452A1 EP0956452A1 EP97953620A EP97953620A EP0956452A1 EP 0956452 A1 EP0956452 A1 EP 0956452A1 EP 97953620 A EP97953620 A EP 97953620A EP 97953620 A EP97953620 A EP 97953620A EP 0956452 A1 EP0956452 A1 EP 0956452A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- liquid ring
- ring machine
- support disk
- grooves
- 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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
-
- 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
-
- 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
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/005—Removing contaminants, deposits or scale from the pump; Cleaning
-
- 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
- F04C2280/00—Arrangements for preventing or removing deposits or corrosion
- F04C2280/02—Preventing solid deposits in pumps, e.g. in vacuum pumps with chemical vapour deposition [CVD] processes
Definitions
- the invention relates to an impeller for a liquid ring machine
- a generic liquid ring machine is known from the patent DE-195 169 94 Cl.
- this machine When operating this machine with e.g. hard, i.e. calcareous water, there is limescale deposits in the inner casing. The thickness of the lime layer increases depending on the temperature. A particularly critical case is reached when e.g. the axial gaps between the impeller and the inner casing grow over with lime.
- the impeller When the machine is in operation, especially when the machine is at a standstill for a long time, the impeller can become stuck due to this limescale or be moved axially by striking the limestone layer. This displacement of the impeller on the opposite side can also lead to the impeller “seizing” on the housing. Under certain circumstances, this may result in material breakage or engine damage. The same can occur with increasing layers of corrosion.
- the invention aims to reduce this layer growth on the inside of the housing of a generic liquid ring machine. According to the invention the object is achieved in that there is at least one recess for edge formation on the end face of the impeller hub and / or on the back of the support disk.
- FIG 1 grooves in the front of the impeller hub
- 2 shows a radial groove or a radial slot in the rear of the supporting disk
- 3 shows offset grooves in the end face of the impeller hub of a liquid ring machine for high vacuum.
- FIG 1 shows in cross section an impeller 1 which has grooves 3 on the end face of the impeller hub 2, which is designed as a sealing surface 7.
- FIG 2 shows in longitudinal section of the impeller 1, which has 4 depressions with edge formation 8 on the rear side of the support disk, which in this case is a slot
- 3 shows in cross section the impeller 1, which has grooves 3 offset by 180 ° on the end face of the impeller hub 2, but each has the sealing surface
- FIG. 5 show a perspective view of slots 6 in the support disk and grooves 3 in the impeller hub end face 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Centrifugal Separators (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19653746 | 1996-12-20 | ||
DE19653746A DE19653746C2 (de) | 1996-12-20 | 1996-12-20 | Laufrad für eine Flüssigkeitsringmaschine |
PCT/DE1997/002859 WO1998028542A1 (de) | 1996-12-20 | 1997-12-08 | Laufrad für eine flüssigkeitsringmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0956452A1 true EP0956452A1 (de) | 1999-11-17 |
EP0956452B1 EP0956452B1 (de) | 2002-08-07 |
Family
ID=7815829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97953620A Expired - Lifetime EP0956452B1 (de) | 1996-12-20 | 1997-12-08 | Laufrad für eine flüssigkeitsringmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6082973A (de) |
EP (1) | EP0956452B1 (de) |
JP (1) | JP2001505276A (de) |
AT (1) | ATE221962T1 (de) |
DE (2) | DE19653746C2 (de) |
WO (1) | WO1998028542A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE508554C2 (sv) * | 1996-07-10 | 1998-10-12 | Kjell Lindskog | Förfarande och anordning för destruktion av föremål |
US20040202549A1 (en) * | 2003-01-17 | 2004-10-14 | Barton Russell H. | Liquid ring pump |
BR112014012096B1 (pt) * | 2011-11-22 | 2021-09-21 | Sterling Industry Consult Gmbh | Bomba de vácuo de anel líquido, e impulsor para uma bomba de vácuo de anel líquido |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1525332A (en) * | 1922-08-10 | 1925-02-03 | American Steam Pump Company | Centrifugal fluid vacuum pump |
US1668532A (en) * | 1924-09-08 | 1928-05-01 | W L Stewart | Rotary machine |
US2771860A (en) * | 1950-08-22 | 1956-11-27 | Werner P Falk | Hydraulic machine |
DE1528823B2 (de) * | 1963-11-29 | 1972-02-24 | Siemens AG, 1000 Berh u 8000 München | Laufrad fuer seitenkanalpumpen |
US3713749A (en) * | 1970-09-30 | 1973-01-30 | Nash Engineering Co | Motor-driven pedestal-mounted pump assembly and method for manufacturing the same |
US3792568A (en) * | 1972-08-15 | 1974-02-19 | Jmj Ind Inc | Air scrubber |
US3894812A (en) * | 1974-02-19 | 1975-07-15 | Atlantic Fluidics Inc | Liquid ring vacuum pump-compressor |
AU8389675A (en) * | 1974-08-15 | 1977-02-17 | Grayden P J Pty Ltd | Liquid ring vacuum pump |
US4112688A (en) * | 1976-10-08 | 1978-09-12 | Shaw John B | Positive displacement gas expansion engine with low temperature differential |
AR216254A1 (es) * | 1979-07-11 | 1979-11-30 | Corvetto A | Compresor de gases de tipo rotativo |
WO1985000637A1 (en) * | 1983-07-15 | 1985-02-14 | Jimmie Wesley Patterson | Lobular type rotary pump |
FI882712A (fi) * | 1988-06-08 | 1989-12-09 | Pentamo Oy | Vaetskeringkompressor. |
US5017086A (en) * | 1989-05-08 | 1991-05-21 | Vickers Incorporated | Hydraulic periphery pumps |
US5096386A (en) * | 1989-11-17 | 1992-03-17 | Sundstrand Corporation | Integral liquid ring and regenerative pump |
US5197863A (en) * | 1990-12-28 | 1993-03-30 | The Nash Engineering Company | Bearing fluid distribution systems for liquid ring pumps with rotating lobe liners |
US5100300A (en) * | 1990-12-28 | 1992-03-31 | The Nash Engineering Company | Liquid ring pumps having rotating lobe liners with end walls |
US5213479A (en) * | 1992-04-09 | 1993-05-25 | The Nash Engineering Company | Liquid ring pumps with improved housing shapes |
US5318415A (en) * | 1992-10-02 | 1994-06-07 | Gramprotex Holdings Inc. | Grooved pump chamber walls for flushing fiber deposits |
DE19516994C1 (de) * | 1995-05-09 | 1996-10-17 | Siemens Ag | Flüssigkeitsringmaschine |
DE29611342U1 (de) * | 1996-06-28 | 1997-08-14 | Speck-Pumpenfabrik Walter Speck KG, 91154 Roth | Flüssigkeitsringpumpe |
US5867900A (en) * | 1997-08-26 | 1999-02-09 | Ecowater Systems, Inc. | Plastic coated valve rotor and a method of manufacturing |
-
1996
- 1996-12-20 DE DE19653746A patent/DE19653746C2/de not_active Revoked
-
1997
- 1997-12-08 US US09/331,564 patent/US6082973A/en not_active Expired - Lifetime
- 1997-12-08 AT AT97953620T patent/ATE221962T1/de not_active IP Right Cessation
- 1997-12-08 DE DE59707939T patent/DE59707939D1/de not_active Expired - Lifetime
- 1997-12-08 EP EP97953620A patent/EP0956452B1/de not_active Expired - Lifetime
- 1997-12-08 WO PCT/DE1997/002859 patent/WO1998028542A1/de active IP Right Grant
- 1997-12-08 JP JP52821398A patent/JP2001505276A/ja not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO9828542A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2001505276A (ja) | 2001-04-17 |
ATE221962T1 (de) | 2002-08-15 |
EP0956452B1 (de) | 2002-08-07 |
US6082973A (en) | 2000-07-04 |
DE19653746C2 (de) | 1999-05-06 |
DE19653746A1 (de) | 1998-06-25 |
WO1998028542A1 (de) | 1998-07-02 |
DE59707939D1 (de) | 2002-09-12 |
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