EP1042614A1 - Multiflow liquid ring pump - Google Patents
Multiflow liquid ring pumpInfo
- Publication number
- EP1042614A1 EP1042614A1 EP98966223A EP98966223A EP1042614A1 EP 1042614 A1 EP1042614 A1 EP 1042614A1 EP 98966223 A EP98966223 A EP 98966223A EP 98966223 A EP98966223 A EP 98966223A EP 1042614 A1 EP1042614 A1 EP 1042614A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid pump
- impeller housing
- side plate
- pump according
- inlet
- 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
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
-
- 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
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
Definitions
- the invention relates to a multi-flow liquid pump according to the preamble of patent claim 1
- a generic liquid pump is known from EP 0 584 106 B1. It is a multi-flow liquid pump with an impeller
- Impeller housing Pump enclosing impeller housing, on the two end faces of which a side plate is arranged
- the two side plates protrude the impeller housing in the radial direction and each side plate has an inlet and an outlet opening on the side facing the other side plate in the area of the projection Impeller housing trending
- connection openings can be provided, on the one hand for the supply of operating fluid and / or for pressure equalization between the two pump halves. These are also openings over parallel to
- a disadvantage of this construction is the space required for the storage arranged in the support arm and, on the other hand, the increased assembly effort for attaching the
- the object of the invention is to provide a generic fluid pump, which is more compact and thus more space-saving compared to the known prior art and requires less installation effort for connecting the lines, as well as being less susceptible to dirt accumulation and easier to clean
- Liquid pump can be made more maintenance-friendly
- each rare shield is flush with the outer jacket surface of the impeller housing and the connection of the inlet and outlet openings and the connection openings takes place via channels arranged in the impeller housing.
- Push-through screws are flanged to the respective end face of the impeller housing
- the cross section of the impeller housing is preferably almost square, the side surfaces being slightly curved outwards and rounded into the
- the connecting channels are located in the gussets that result between the almost square cross-section of the impeller housing and the round work area, whereby the work area is almost in the middle of the impeller housing
- the impeller housing is, for example, the working area axis is five millimeters in the direction of the 12 o'clock position, eccentric to the axis of the impeller housing.
- the bore of the impeller housing can be offset to the outer contour, preferably in Towards the 6 o'clock position incorporated cross-sectional geometry of the suction and pressure channels on the top are larger than the channels for operating fluid and dirt particles below.
- connection openings below are provided for the supply of the operating liquid.
- the second connection opening is designed as a dirt particle discharge channel, which is provided with connecting channels extending radially to the work area. In this way, entrained dirt particles are thrown out of the work area by the centrifugal force and due to the centrifugal force through the openings in the work space wall in the longitudinal exhaust duct are printed. At certain intervals the dirt particles accumulated in the exhaust duct can be removed
- the seal and the bearing for the shaft of the impeller are preferably integrated.
- the seal is preferably arranged in a seal housing and the bearing in a separate bearing housing. Both housings are screwed together and sealed by subtracting from the Rotor shaft can be removed In this case, the rotor shaft is placed on two cams integrated in the respective control disc. This makes it possible to replace worn shaft seals without having to remove the entire machine from the vehicle and completely disassemble it
- Figure 1 is a perspective view of a multi-flow liquid pump designed according to the invention
- Figure 2 is a front view of a side plate in the as-cast state
- Figure 3 shows a section A-A in Figure 4
- FIG. 4 shows a section B-B in FIG. 2
- FIG. 5 shows a section D-D in FIG. 4
- FIG. 6 shows a section E-E in FIG. 5
- FIG. 7 shows a section C-C in FIG. 2
- FIG. 8 shows a longitudinal section of the multi-flow liquid pump designed according to the invention
- FIG. 9 shows a section F-F in FIG. 8
- FIG. 1 shows a perspective illustration of a multi-flow liquid pump 1 designed according to the invention. It consists of a
- the front side plate 3 in this illustration is the drive side with the rotor shaft 5 that drives the pump.
- the illustration shows the flush closure of the side plates 3 4 with the outer contour of the impeller housing 2 each Side plate has recesses 6 on both side surfaces for receiving Push-through screws for fastening the side plates 3, 4 to the respective end face of the impeller housing 2
- openings 7, 8 are provided, with the opening 7 of the front side plate 3 on the left in this exemplary embodiment being the inlet opening for the suction side and the opening 8 on the right
- the outlet opening for the pressure side is the one behind
- each side plate 3, 4 is provided in the lower region with at least one connection opening 12, 14, preferably for the connection of the operating fluid.
- a further connection opening 11, 13 can also be provided, for example as a dirt particle discharge duct
- FIG. 2 shows the side plate 3 lying in front in FIG. 1 in the as-cast state
- Inlet and outlet openings 7, 8 are also cast in, while the connection openings 11, 12 below (FIG. 1) still have to be drilled
- FIGS. 3 to 7 show sections or partial sections of the guides of the channels in the side plate 3 selected here because of the double-flow nature of the machine
- the side plate 3, 4 is used, on the one hand, to distribute the gas to be supplied or discharged into the chamber on the right in FIG. 8 and, on the other hand, via the channels 15, 16 arranged in the impeller housing 2 into the one on the left in FIG Chamber This applies to both the suction side 17 and the pressure side 18
- Each side plate 3, 4 has a centrally located, stepped bore 19 in order to accommodate the seal and the bearing for the rotor shaft 5 (FIG. 8).
- the respective control plate 21, 22 is fastened to the inside end 20 by screws 47 (FIG. 8) ( Figure 8)
- On the front side 20 an outwardly extending centering shoulder 23 is also provided, on which the impeller housing 2 is centered.
- the operating fluid is supplied via the connection opening 12 and the channel 24 running in the side plate 3 via a bore 25 in the storage area 19 From there it flows further via the opening 26, 27 in the respective control disk 21, 22 into the working space of the respective chamber of the machine
- stiffening ribs 28 are provided according to FIG. 8
- FIG. 8 The overall context is shown once again in FIG. 8 in a longitudinal section and in FIG. 9 in a section F-F in FIG. 8.
- FIG. 9 The overall context is shown once again in FIG. 8 in a longitudinal section and in FIG. 9 in a section F-F in FIG. 8.
- Arrow 29 indicates the selected direction of rotation of the rotor shaft 5 and thus the pump.
- the direction of rotation can also be clockwise, but then the suction 17 and the pressure side 18 have been interchanged.
- This section clearly shows on the one hand the upper channels 15 16 which connect the inlet or outlet opening 7.9 or 8, 10 of the two side plates 3, 4 together.
- Further channels 30, 31 are provided in the gussets below, preferably for the transmission of the operating fluid, but also as a dirt particle discharge channel of the impeller housing 2 is essentially square with bulging side faces. The side faces are provided with projections 32
- the two-chamber system can be seen through the central rib 33 dividing the two chambers.
- the inlet openings 7, 9 to be seen in the side plates 3, 4 are not strictly in this longitudinal section, but have been placed in the plane of the drawing for reasons of understanding
- the seal consists of a stuffing box packing 34 and three shaft seals 35 - 37 arranged next to one another, the lips of the shaft seals 35, 36 lying further inwards being inclined to the left and the lip of the shaft seal 37 lying further outwards being inclined to the right between the two first-mentioned shaft seals 35 , 36, a grease seal is provided, the filling of which takes place via a bore 38. The relief takes place via a further bore 39.
- a sliding seal is also possible.
- the bearing 40 here in the form of a spherical roller bearing, is on a Bearing seat of the rotor shaft 5 arranged
- the bearing 40 is axially fixed by a screw-on shaft nut 41 den
- Lateral closure forms a cover 42 or a cap 43 with a sealed opening for the passage of the shaft shaft of the rotor shaft 5.
- the respective seal is arranged in a seal housing 48 and the respective bearing in a bearing housing 49. Both housings 48, 49 are screwed together, with the Stop faces of both housings 48, 49 a seal 50 is arranged
- 3.4 plugs 43, 44 are provided in the lower part of the respective side plate, so that the operating fluid can be drained from both the right and the left side Break open at the bottom right to see the arrangement of two plugs 45, 46, so that the supply of the operating fluid can also be made either from the front of the side plate 3 or from the bottom.
- the inlet and outlet openings 7.9 or 8.10 in the two side plates 3.4 can optionally be closed, so that the
- Cable connection can also be made either on the left as well as on the right side plate 3, 4. All the options mentioned here have been consciously taken into account in the design in order to achieve a high degree of flexibility in connection options. This has the advantage that each operator can decide for himself from which side he would most favorably connect the lines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Reciprocating Pumps (AREA)
- External Artificial Organs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19758340 | 1997-12-22 | ||
DE19758340A DE19758340A1 (en) | 1997-12-22 | 1997-12-22 | Multi-flow liquid ring pump |
PCT/DE1998/003752 WO1999032791A1 (en) | 1997-12-22 | 1998-12-16 | Multiflow liquid ring pump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1042614A1 true EP1042614A1 (en) | 2000-10-11 |
EP1042614B1 EP1042614B1 (en) | 2004-08-04 |
Family
ID=7853648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98966223A Expired - Lifetime EP1042614B1 (en) | 1997-12-22 | 1998-12-16 | Multiflow liquid ring pump |
Country Status (9)
Country | Link |
---|---|
US (1) | US6551071B1 (en) |
EP (1) | EP1042614B1 (en) |
AT (1) | ATE272797T1 (en) |
AU (1) | AU2264499A (en) |
CA (1) | CA2315700C (en) |
DE (2) | DE19758340A1 (en) |
ES (1) | ES2226200T3 (en) |
PT (1) | PT1042614E (en) |
WO (1) | WO1999032791A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20005916U1 (en) | 2000-03-30 | 2000-06-21 | Gardner Denver Wittig GmbH, 79650 Schopfheim | Liquid ring pump |
DE20104660U1 (en) | 2001-03-16 | 2001-08-02 | Gardner Denver Wittig GmbH, 79650 Schopfheim | Screw compressor |
NO316638B1 (en) * | 2002-04-19 | 2004-03-15 | Compressor Systems As | Vaeskeringkompressor |
EP1477681B1 (en) * | 2003-05-16 | 2006-08-23 | Sterling Fluid Systems (Germany) GmbH | Liquid ring gas pump |
DE50309581D1 (en) * | 2003-05-16 | 2008-05-21 | Sterling Fluid Sys Gmbh | Liquid ring gas pump |
DE202005005620U1 (en) * | 2005-04-08 | 2006-08-17 | Hawe Hydraulik Gmbh & Co. Kg | pump unit |
DE102005043434A1 (en) * | 2005-09-13 | 2007-03-15 | Gardner Denver Elmo Technology Gmbh | Device for adjusting the capacity of a liquid ring pump |
ATE404793T1 (en) * | 2006-05-11 | 2008-08-15 | Pompetravaini S P A | SINGLE-STAGE LIQUID RING VACUUM PUMP WITH SUCTION AND PRESSURE LINES INTEGRATED IN THE CENTRAL HOUSING. |
KR101803843B1 (en) * | 2017-08-24 | 2017-12-04 | 주식회사 백콤 | Water ring vacuum pump for component change type |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1111355B (en) | 1958-02-27 | 1961-07-20 | Licentia Gmbh | Electric bread roaster |
US4132504A (en) * | 1976-04-07 | 1979-01-02 | General Signal Corporation | Liquid ring pump |
US4273515A (en) * | 1976-04-07 | 1981-06-16 | General Signal Corporation | Liquid ring pump |
JPS5537565A (en) * | 1978-09-08 | 1980-03-15 | Nakamura Suikan:Kk | One-action type water ring pump |
BR7909020A (en) * | 1979-08-09 | 1981-06-09 | Nash Engineering Co | TWO STAGE LIQUID RING |
DE3568823D1 (en) * | 1984-05-14 | 1989-04-20 | Prescant Pty Ltd | Water ring vacuum pump |
KR960014088B1 (en) * | 1987-01-08 | 1996-10-12 | 더 내쉬 엔지니어링 컴패니 | Two-stage liquid ring pump |
WO1992020925A1 (en) * | 1991-05-14 | 1992-11-26 | Siemens Aktiengesellschaft | Multiple flow, liquid ring pump |
DE4301907A1 (en) * | 1993-01-25 | 1994-07-28 | Siemens Ag | Liquid ring machine |
DE4305424A1 (en) * | 1993-02-22 | 1994-08-25 | Siemens Ag | Method for operating a liquid ring machine and a liquid ring machine for performing the method |
CN1065323C (en) * | 1995-05-08 | 2001-05-02 | 西门子公司 | Liquid-ring type machine |
US5899668A (en) * | 1997-01-30 | 1999-05-04 | The Nash Engineering Company | Two-stage liquid ring pumps having separate gas and liquid inlets to the second stage |
-
1997
- 1997-12-22 DE DE19758340A patent/DE19758340A1/en not_active Ceased
-
1998
- 1998-12-16 AU AU22644/99A patent/AU2264499A/en not_active Abandoned
- 1998-12-16 ES ES98966223T patent/ES2226200T3/en not_active Expired - Lifetime
- 1998-12-16 AT AT98966223T patent/ATE272797T1/en not_active IP Right Cessation
- 1998-12-16 EP EP98966223A patent/EP1042614B1/en not_active Expired - Lifetime
- 1998-12-16 CA CA002315700A patent/CA2315700C/en not_active Expired - Fee Related
- 1998-12-16 WO PCT/DE1998/003752 patent/WO1999032791A1/en active IP Right Grant
- 1998-12-16 PT PT98966223T patent/PT1042614E/en unknown
- 1998-12-16 US US09/581,390 patent/US6551071B1/en not_active Expired - Lifetime
- 1998-12-16 DE DE59811772T patent/DE59811772D1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9932791A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999032791A1 (en) | 1999-07-01 |
CA2315700C (en) | 2006-12-12 |
CA2315700A1 (en) | 1999-07-01 |
DE19758340A1 (en) | 1999-07-08 |
US6551071B1 (en) | 2003-04-22 |
ATE272797T1 (en) | 2004-08-15 |
EP1042614B1 (en) | 2004-08-04 |
PT1042614E (en) | 2004-11-30 |
AU2264499A (en) | 1999-07-12 |
DE59811772D1 (en) | 2004-09-09 |
ES2226200T3 (en) | 2005-03-16 |
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