EP0490908A1 - Kreiselpumpengehäuse in blechbauweise. - Google Patents
Kreiselpumpengehäuse in blechbauweise.Info
- Publication number
- EP0490908A1 EP0490908A1 EP90912183A EP90912183A EP0490908A1 EP 0490908 A1 EP0490908 A1 EP 0490908A1 EP 90912183 A EP90912183 A EP 90912183A EP 90912183 A EP90912183 A EP 90912183A EP 0490908 A1 EP0490908 A1 EP 0490908A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- projections
- pump housing
- annular space
- centrifugal pump
- outlet opening
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 9
- 239000000126 substance Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 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
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/428—Discharge tongues
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/914—Device to control boundary layer
Definitions
- the invention relates to a centrifugal pump housing according to the preamble of the main claims.
- Centrifugal pump housings in sheet metal construction have a very good strength and, depending on the material used, a high level of resistance to a wide variety of fluids.
- a disadvantage of these housings made in sheet metal construction is their low resistance to abrasive components in the pumped medium. In contrast to a considerably thicker cast housing, the thin-walled sheet metal housing is rather damaged under the influence of abrasive components.
- the invention is therefore based on the object of developing a solution for a generic pump housing, with the aid of which, when conveying media containing abrasive components, ensures a service life corresponding to a cast housing.
- This object is achieved in accordance with the characterizing part of the main claim.
- the exit from the annular space, in which flow is deflected into the pressure connection, has been shown to be particularly hazardous to wear.
- the flow in the area of the outlet opening is deflected to the center of the housing, in order to then get into the pressure port without damaging the outlet opening.
- the one attached to the end edge of the outlet opening To a certain extent, the protrusion initiates flow into the pressure connection, but at the same time also acts as a wear part and protects the thin housing wall from damage.
- An embodiment of the invention provides that the length of the projections corresponds to the width of the ring space.
- the projections can extend over the entire length or several parts can be staggered.
- the abrasive components are removed from the edge zone of the outlet opening by the projections and then freely enter the pressure port.
- a projection attached to the end edge of the outlet opening projects into the pressure port.
- the projection acts as wear protection for directly impacting abrasive parts.
- an impeller (2) is located within a pump housing (1) made of sheet metal, with an annular space (3) being formed between the impeller and the circumference of the pump housing. Inside this annular space, the pumped medium emerging from the impeller circulates and leaves it annular space (3), the pump housing is connected to a piping system of the latter by a mounted on the periphery of the pump housing outlet (4) to enter in order to subsequently in a 'discharge nozzle (5). with the aid.
- projections (8, 9) extending transversely to the flow direction are arranged on the start edge (6) and end edge (7) of the outlet opening (4). These prevent abrasive parts in the pumped medium from destroying the outlet opening (4) and the downstream pressure port (5) when they exit the annular space.
- the order of magnitude of the solids content corresponds to the values that pump manufacturers usually allow for pure water pumps.
- the projection (9) has a design on the basis of which it still extends into the outlet opening (4) and the pressure connection (5) adjoining it.
- the so-called housing spur (10) is thus protected against direct attack by the abrasive components.
- the height (H) of the projections is determined on the basis of the inside diameter (D) of the housing (1). The lower the height of the projections (8, 9), the less important is their influence on the pump efficiency.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3929758A DE3929758C2 (de) | 1989-09-07 | 1989-09-07 | Kreiselpumpengehäuse in Blechbauweise |
DE3929758 | 1989-09-07 | ||
PCT/EP1990/001373 WO1991003649A1 (de) | 1989-09-07 | 1990-08-20 | Kreiselpumpengehäuse in blechbauweise |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0490908A1 true EP0490908A1 (de) | 1992-06-24 |
EP0490908B1 EP0490908B1 (de) | 1995-05-31 |
Family
ID=6388838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90912183A Expired - Lifetime EP0490908B1 (de) | 1989-09-07 | 1990-08-20 | Kreiselpumpengehäuse in blechbauweise |
Country Status (10)
Country | Link |
---|---|
US (1) | US5228831A (de) |
EP (1) | EP0490908B1 (de) |
JP (1) | JPH0647998B2 (de) |
CN (1) | CN1022260C (de) |
AT (1) | ATE123329T1 (de) |
CA (1) | CA2066434C (de) |
DD (1) | DD300241A5 (de) |
DE (2) | DE3929758C2 (de) |
MX (1) | MX172517B (de) |
WO (1) | WO1991003649A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4239071C2 (de) * | 1992-11-20 | 1997-01-30 | Grundfos As | Tauchpumpenaggregat |
CA2146816A1 (en) | 1994-04-22 | 1995-10-23 | Joachim E. Klee | Process and composition for preparing a dental polymer product |
JP3524674B2 (ja) | 1995-11-24 | 2004-05-10 | 東レ・ダウコーニング・シリコーン株式会社 | オルガノポリシロキサン組成物およびその製造方法 |
US6146092A (en) * | 1998-07-13 | 2000-11-14 | Ford Motor Company | Centrifugal blower assembly with a diffuser |
NO319000B1 (no) * | 2000-03-01 | 2005-06-06 | Small Turbine Partner As | Radialvannturbin |
US20030039541A1 (en) * | 2001-08-20 | 2003-02-27 | Xerox Corporation | Blower noise reducing device and a blower having same |
US6988870B2 (en) * | 2004-01-27 | 2006-01-24 | Weir Slurry Group, Inc. | Casing for a centrifugal pump |
TWI257836B (en) * | 2004-04-23 | 2006-07-01 | Quanta Comp Inc | Turbulent blower |
EP3076024B1 (de) * | 2008-06-06 | 2020-09-30 | Weir Minerals Australia Ltd | Pumpengehäuse |
US9334876B2 (en) | 2011-04-12 | 2016-05-10 | Thermo Neslab Inc. | Pump casing and related apparatus and methods |
DE102015007100A1 (de) * | 2015-06-08 | 2016-12-08 | Gea Tuchenhagen Gmbh | Selbstansaugende Pumpenaggregation |
JP6909069B2 (ja) * | 2017-06-20 | 2021-07-28 | 株式会社日本クライメイトシステムズ | 車両用空調装置の送風機 |
DE102017223602A1 (de) * | 2017-12-21 | 2019-08-01 | KSB SE & Co. KGaA | Kreiselpumpe mit Gussbauteil |
DE102018218989A1 (de) * | 2018-11-07 | 2020-05-07 | KSB SE & Co. KGaA | Mantelgehäusepumpe |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US893113A (en) * | 1906-07-17 | 1908-07-14 | John Alonzo Traylor | Packing-ring for rotary pumps. |
DE569707C (de) * | 1931-04-17 | 1933-02-07 | Ton & Steinzeug Werke Akt Ges | Kreiselpumpengehaeuse fuer den Einbau von Fluegelraedern verschiedenen Durchmessers |
US1914919A (en) * | 1931-10-30 | 1933-06-20 | Allis Chalmers Mfg Co | Centrifugal pump |
DE1158841B (de) * | 1959-06-10 | 1963-12-05 | M U K H Schreiner Saugbagger U | Pumpe zur Foerderung von Feststoff-Wasser-Gemischen mit auswechselbarem Innengehaeuse |
CH503907A (de) * | 1968-07-13 | 1971-02-28 | Siemens Ag | Einrichtung zum selbsttätigen Unterbinden der Flüssigkeitsförderung einer Kreiselpumpe bei Rückwärtslauf |
DE1728158A1 (de) * | 1968-09-03 | 1972-03-09 | Siemens Elektrogeraete Gmbh | Querstromgeblaese |
US3647314A (en) * | 1970-04-08 | 1972-03-07 | Gen Electric | Centrifugal pump |
FR2264204B1 (de) * | 1974-03-11 | 1978-11-10 | Mpi Sa Material Processing Int | |
US4076450A (en) * | 1976-01-14 | 1978-02-28 | United Centrifugal Pumps | Double volute pump with replaceable lips |
GB1558834A (en) * | 1977-12-19 | 1980-01-09 | Hall J K H | Repair of metallic components |
FR2413571A1 (fr) * | 1977-12-30 | 1979-07-27 | Lab | Perfectionnements aux machines dans lesquelles un fluide est mis en rotation |
SU1016563A1 (ru) * | 1981-08-19 | 1983-05-07 | Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт | Центробежный грунтовый насос |
DE3323167A1 (de) * | 1983-06-28 | 1985-01-03 | Soudbrase-Schweißtechnik GmbH, 7500 Karlsruhe | Verfahren zum herstellen und reparieren von pumpengehaeusen fuer pumpen, die zum foerdern von sand- und kieshaltigem foerdergut dienen sowie pumpen dieser art |
NZ211792A (en) * | 1984-04-18 | 1986-09-10 | Warman Int Ltd | Centrifugal pump casing |
DE3517498C3 (de) * | 1985-05-15 | 1993-12-02 | Klein Schanzlin & Becker Ag | Kreiselpumpengehäuse |
US4789301A (en) * | 1986-03-27 | 1988-12-06 | Goulds Pumps, Incorporated | Low specific speed pump casing construction |
-
1989
- 1989-09-07 DE DE3929758A patent/DE3929758C2/de not_active Expired - Fee Related
-
1990
- 1990-08-20 CA CA002066434A patent/CA2066434C/en not_active Expired - Fee Related
- 1990-08-20 EP EP90912183A patent/EP0490908B1/de not_active Expired - Lifetime
- 1990-08-20 DE DE59009190T patent/DE59009190D1/de not_active Expired - Fee Related
- 1990-08-20 JP JP2511592A patent/JPH0647998B2/ja not_active Expired - Lifetime
- 1990-08-20 US US07/836,299 patent/US5228831A/en not_active Expired - Fee Related
- 1990-08-20 WO PCT/EP1990/001373 patent/WO1991003649A1/de active IP Right Grant
- 1990-08-20 AT AT90912183T patent/ATE123329T1/de not_active IP Right Cessation
- 1990-08-29 MX MX022150A patent/MX172517B/es unknown
- 1990-09-05 DD DD343843A patent/DD300241A5/de unknown
- 1990-09-06 CN CN90107568A patent/CN1022260C/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9103649A1 * |
Also Published As
Publication number | Publication date |
---|---|
DD300241A5 (de) | 1992-05-27 |
CN1022260C (zh) | 1993-09-29 |
EP0490908B1 (de) | 1995-05-31 |
US5228831A (en) | 1993-07-20 |
DE3929758A1 (de) | 1991-03-21 |
WO1991003649A1 (de) | 1991-03-21 |
MX172517B (es) | 1993-12-16 |
DE3929758C2 (de) | 1994-11-17 |
CA2066434A1 (en) | 1991-03-08 |
DE59009190D1 (de) | 1995-07-06 |
ATE123329T1 (de) | 1995-06-15 |
CA2066434C (en) | 1999-10-05 |
JPH04503848A (ja) | 1992-07-09 |
CN1050079A (zh) | 1991-03-20 |
JPH0647998B2 (ja) | 1994-06-22 |
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