WO1993022564A1 - Pumpengehäuse - Google Patents
Pumpengehäuse Download PDFInfo
- Publication number
- WO1993022564A1 WO1993022564A1 PCT/EP1993/000992 EP9300992W WO9322564A1 WO 1993022564 A1 WO1993022564 A1 WO 1993022564A1 EP 9300992 W EP9300992 W EP 9300992W WO 9322564 A1 WO9322564 A1 WO 9322564A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump housing
- housing
- pump
- opening
- axis
- Prior art date
Links
- 230000007704 transition Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of 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
-
- 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
Definitions
- a centrifugal pump which consists of a housing which is divided into two identical housing halves by a plane running perpendicular to the housing axis and running through the center of the housing and is preferably made of plastic.
- the housing has a separately designed outlet connection, which is connected to a lateral outlet opening provided on the outer housing periphery. When the housing is designed, its outlet opening is displaced in the direction of the housing center axis. Furthermore, the interior of the pump housing extends into the connection area of the outlet connector.
- the outlet opening of the housing is provided with a flange, so that the outlet connector can be attached to the contact surface of the housing with a correspondingly rectangular connection flange.
- the centrifugal pump is adapted to different requirements by using differently shaped outlet connections.
- the impeller In order to obtain the assembly advantage, the impeller must not be larger than this opening.
- the pump consequently has a much smaller impeller diameter compared to the housing diameter and is limited in the capacity adjustment with regard to the delivery head and delivery volume.
- the in the The centrifugal pump shown in the drawing is a sewer wheel pump and is used to deliver high volumes of contaminated and solid water. The pump is therefore not intended to build up high pressures.
- this construction has the disadvantage that many parts have to be assembled. In addition to the housing parts, seals and connecting elements are required. Due to the way the parts are connected, flanges are necessary and gaps are formed between the parts in which deposits can form.
- DE-A-30 00 095 shows a centrifugal pump with a pump housing which has an outlet which is arranged essentially tangentially, relative to the peripheral wall of the pump housing, the outlet having an opening with a substantially rectangular cross section.
- This opening weakens the rigidity of the housing and offers no additional security against the deformation forces caused by the internal pressure.
- the welding to the nozzle is complex because the weld seam runs on three levels. For this purpose, the nozzle must be designed so that it can be attached to the three-dimensional contour of the housing.
- the invention is based on the problem, a uniform, for wheels with different heights and
- the problem is solved according to the invention in that a flattening is carried out on the housing circumference, the flattening narrows the flow space bounded by the pump housing and downstream of the impeller towards the pump axis, and an opening for connecting the connecting piece with a uniform connection cross section is provided on the flattening.
- the advantages that can be achieved with the invention consist in particular in that the flattening of the pump housing enables a reliable connection of the connecting piece to the housing by welding in one plane.
- the pump housing is primarily developed for manufacturing using sheet metal technology, but is also suitable for manufacturing using other technologies and materials.
- connection of the connecting piece to the housing is facilitated by increasing the area of the flattening in that sufficient space is created for automatically controlled welding. It is essential that the area at the connection cross section of the connector remains constant for the use of differently shaped connectors on a housing.
- the development according to claim 3 enables a changed flow guidance in that an increased spur formation can be achieved with an arrangement of the opening and the nozzle that is asymmetrical with respect to the flattening, without the use of an additional part.
- the opening is advantageously arranged so as to be displaced counter to the direction of flow, so that the spur is enlarged.
- the development according to claim 4 optimizes the flow guidance in such a way that on the one hand the transition radii from the pump housing into the flattening reinforce the spur formation and on the other hand the inflow from the housing into the nozzle is improved.
- the radius at the front in the flow direction is preferably small and the radius at the rear in the flow direction is large.
- Claim 6 is used not only to accommodate any socket with a fixed connection cross section, but also to guide the socket in the overlap area.
- the collar also helps to stiffen the housing.
- the neck is preferably welded to the collar, it being possible for the neck to lie inside or outside the collar. Gap-free welding can be achieved with this version by welding the socket from the inside to the collar.
- the development according to claim 7 relates to a pump housing with a parallel arrangement of the flattening to the axis of rotation of the impeller
- the development according to claim 8 relates to a pump housing with flattening inclined to the axis of rotation of the impeller.
- Fig. 1 is a pump housing in longitudinal section and
- Fig. 2 is an enlargement of the transition from the housing to the flattening
- Fig. 3 shows a pump housing with a pressure port in the meridian section. 1 and 2
- a cylindrical pump housing (1) made of thin sheet metal on its housing periphery has a flattened portion (2) with a collar (3) for receiving a connecting piece (4).
- the connection piece (4) is a pressure connection piece, at the end of which there is a flange (not shown).
- the flattening (2) emerges from the cylindrical housing (1) with two different radii of curvature (R1) and (R2) at points (5) and (6) and is at an angle of approximately 30 ° to the tangent of the circumference of the cylindrical housing inclined.
- the flattening does not intersect the impeller circumference (10) here, but this can certainly be allowed.
- the central axis of the opening (7) on the flat (2) does not go through the center of the housing (1), but is offset by the distance e against the direction of flow. This increases the formation of a spur (8).
- Fig. 2 the transition from the housing (1) into the flattening (2) is shown enlarged.
- the transition at point (5) is carried out with a radius R1, which in this embodiment is larger than the radius R2 at point (6).
- the spur (8) formed originated from the flattening (2).
- the opening (7) does not extend over the entire width of the housing (1), but has one
- the cylindrical housing (1) shown can also have a different shape, for. B. a parabolic, conical, spherical or polygonal shape.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93911502A EP0639243B1 (de) | 1992-04-29 | 1993-04-24 | Pumpengehäuse |
DE59302066T DE59302066D1 (de) | 1992-04-29 | 1993-04-24 | Pumpengehäuse |
US08/331,526 US5551839A (en) | 1992-04-29 | 1993-04-24 | Pump housing for rotary pumps |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4214026.9 | 1992-04-29 | ||
DE4214026A DE4214026A1 (de) | 1992-04-29 | 1992-04-29 | Pumpengehaeuse |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993022564A1 true WO1993022564A1 (de) | 1993-11-11 |
Family
ID=6457702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1993/000992 WO1993022564A1 (de) | 1992-04-29 | 1993-04-24 | Pumpengehäuse |
Country Status (5)
Country | Link |
---|---|
US (1) | US5551839A (de) |
EP (1) | EP0639243B1 (de) |
JP (1) | JP2651954B2 (de) |
DE (2) | DE4214026A1 (de) |
WO (1) | WO1993022564A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8579603B2 (en) * | 2004-07-13 | 2013-11-12 | Energy Recovery, Inc. | Centrifugal pump |
DE102009010927B4 (de) | 2009-02-25 | 2021-11-11 | Wilo Se | Pumpengehäuse |
JP6051056B2 (ja) * | 2013-01-15 | 2016-12-21 | 株式会社荏原製作所 | 渦巻ポンプ |
CN114893422A (zh) * | 2022-04-26 | 2022-08-12 | 杭州老板电器股份有限公司 | 一种风机及油烟机 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB580079A (en) * | 1945-02-02 | 1946-08-26 | Dudley George Jones | Improvements in and relating to centrifugal pumps |
DE3316927A1 (de) * | 1983-05-09 | 1984-11-15 | Albert 5204 Lohmar Blum | Kreiselpumpe |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1109393A (en) * | 1913-05-01 | 1914-09-01 | Camden Iron Works | Centrifugal pump. |
GB191517473A (en) * | 1915-07-31 | 1916-03-30 | Naamlooze Vennootschap Werf Co | Improvements in or relating to Centrifugal Pumps. |
US1997387A (en) * | 1931-07-03 | 1935-04-09 | Mccord Radiator & Mfg Co | Nozzle for hand driers |
DE839598C (de) * | 1944-05-12 | 1952-05-23 | Bergedorfer Eisenwerk Ag | Pumpe in sparstoffarmer Ausfuehrung |
NL85520C (de) * | 1956-05-15 | |||
US2999628A (en) * | 1957-08-26 | 1961-09-12 | Joseph S Crombie | Low pressure compressor |
GB1185313A (en) * | 1966-05-05 | 1970-03-25 | Speedwell Res Ltd | Improvements in or relating to Centrifugal Pumps. |
DD98343A1 (de) * | 1972-03-15 | 1973-06-12 | ||
GB2047341A (en) * | 1979-04-24 | 1980-11-26 | Somme S M | Centrifugal Pumps |
DE2940029C2 (de) * | 1979-10-03 | 1984-03-29 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Kreiselpumpengehäuse |
DE3145409A1 (de) * | 1981-11-16 | 1983-05-26 | Philipp Hilge Gmbh, 6501 Bodenheim | Spiralgehaeuse fuer stroemungsmaschinen und ihre herstellung |
DE3517498C3 (de) * | 1985-05-15 | 1993-12-02 | Klein Schanzlin & Becker Ag | Kreiselpumpengehäuse |
DE68921203T2 (de) * | 1988-02-29 | 1995-10-12 | Ebara Corp | Anschlussstück für leitungen in einer pumpe. |
JPH07103878B2 (ja) * | 1989-01-19 | 1995-11-08 | 株式会社荏原製作所 | ポンプケーシング及びその製造方法 |
JP2809487B2 (ja) * | 1989-07-05 | 1998-10-08 | 株式会社荏原製作所 | 遠心ポンプケーシング |
JPH0758080B2 (ja) * | 1989-07-15 | 1995-06-21 | 株式会社荏原製作所 | 板金製うず巻ポンプケーシング |
IT1234504B (it) * | 1989-08-18 | 1992-05-18 | Tiziano Carretta | Cassa statorica in lamiera metallica, particolarmente per pompe radiali centrifughe |
-
1992
- 1992-04-29 DE DE4214026A patent/DE4214026A1/de not_active Withdrawn
-
1993
- 1993-04-24 EP EP93911502A patent/EP0639243B1/de not_active Expired - Lifetime
- 1993-04-24 WO PCT/EP1993/000992 patent/WO1993022564A1/de active IP Right Grant
- 1993-04-24 DE DE59302066T patent/DE59302066D1/de not_active Expired - Lifetime
- 1993-04-24 JP JP5518892A patent/JP2651954B2/ja not_active Expired - Lifetime
- 1993-04-24 US US08/331,526 patent/US5551839A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB580079A (en) * | 1945-02-02 | 1946-08-26 | Dudley George Jones | Improvements in and relating to centrifugal pumps |
DE3316927A1 (de) * | 1983-05-09 | 1984-11-15 | Albert 5204 Lohmar Blum | Kreiselpumpe |
Non-Patent Citations (1)
Title |
---|
GB,A,Q17473 (WERF CONRAD) 20. April 1915 * |
Also Published As
Publication number | Publication date |
---|---|
DE59302066D1 (de) | 1996-05-02 |
JP2651954B2 (ja) | 1997-09-10 |
JPH07502323A (ja) | 1995-03-09 |
US5551839A (en) | 1996-09-03 |
DE4214026A1 (de) | 1993-11-04 |
EP0639243A1 (de) | 1995-02-22 |
EP0639243B1 (de) | 1996-03-27 |
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