EP1002959B1 - Kreiselpumpenaggregat - Google Patents
Kreiselpumpenaggregat Download PDFInfo
- Publication number
- EP1002959B1 EP1002959B1 EP99122438A EP99122438A EP1002959B1 EP 1002959 B1 EP1002959 B1 EP 1002959B1 EP 99122438 A EP99122438 A EP 99122438A EP 99122438 A EP99122438 A EP 99122438A EP 1002959 B1 EP1002959 B1 EP 1002959B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall part
- pump housing
- peripheral wall
- pump
- terminal plate
- 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.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 238000010276 construction Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- 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
- F04D29/60—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
Definitions
- the invention is based on a centrifugal pump unit according to the preamble of claim 1.
- the general structure of a pump housing, with an electric drive motor is connected consists of wall parts made of metal or Plastic castings or molded from sheet metal parts. These wall parts including a mounting flange of the motor for its attachment the pump housing usually have holes and threaded holes on and are connected to each other by means of screws.
- a screwless connection of the wall parts of the pump housing allow each other, in the form of bayonet training on Motor and on the pump housing.
- the types of connection are very consuming in the production and therefore with correspondingly high production costs connected.
- FIG. 1 Another US patent US-A-2 370 202 describes a vacuum pump.
- This pump is powered by an electric motor mounted on his Pump side has several feet, which are at the bottom wall of the vacuum pump are screwed on.
- the rest of the pump housing consists of a one-piece top wall, which has a central intake pipe which is connected to a vacuum suction line connected. Between the lower wall and the upper wall is circumferential at least one exit slot for discharging air to generate the vacuum released in the vacuum suction line.
- the lower wall of the pump housing has at its periphery a plurality of support legs of sufficient length, so that the Motor with the pump placed vertically on a floor surface or the like can be.
- the snaps consist of an eyelet with a hinged thereto, hand-operated lever.
- the object of the invention is thus to provide a centrifugal pump unit of in the introduction, so as to improve the pump housing construction cheaper to produce and easier for maintenance and repair is faster to assemble and disassemble.
- the Pump housing can be easily made of sheet metal parts or in the form of castings, z. B. made of plastic, to be joined together Wall parts of the pump housing are shaped so that they do not have through holes, Have threaded holes or bayonet training. Instead, the wall parts at their contact points with restraining contact surfaces or depressions provided, and by means of simple, arcuate Klammem, the cost-effective an automatic production line can be made, all Wall parts of the unit held together by clamping force.
- centrifugal pump assembly is that the peripheral wall part at its two ends depending on an annular flange having, wherein the annular flanges a safe investment for the corresponding Form end wall parts of the pump housing.
- the peripheral wall part can be adjusted at any angle with respect to its outlet nozzle, as it is most favorable for the particular application.
- peripheral wall part along a portion of its circumference provided with a spiral bulge be tangentially open and an adjoining outlet having.
- the rest of the structure of the pump housing an annular foot part, which together with the suction-side end plate and the peripheral wall part at the pump wall part forming Wall part of the engine assembly is clamped.
- the centrifugal pump unit comprises a Engine assembly 2 and a centrifugal pump 3.
- the unit 1 is for example a Submersible pump unit, however, can also be an aggregate that is not in one Submerged pumped medium is operated.
- the pump is 3 in usually provided with an intake for a suction line.
- the motor assembly comprises an electric drive motor 4 of conventional design, so that this is not explained in detail in its basic structure.
- the engine assembly further comprises at least one wall part 5 at its pump-side end, with the motor 4 is permanently connected and forms a pump housing wall part.
- the electric drive motor 4 carries on its drive shaft 6 a replaceable Rotor 7 for conveying the respective pumped medium.
- the electric Drive motor 4, the wall part 5, which in its function is part of the pump 3, and the impeller 7 form the motor assembly 2.
- the wall part 5 is annularly formed of stainless sheet material and in Cross section advantageously profiled designed such that a circumferential groove 5a formed is that receives a sealing ring (not shown).
- the circumferential groove can for example, have an inverted V-shape. Because of this groove training This results in a recessed inner region 5b of the wall part 5, which serves as a latching depression serves, as will become clear.
- the centrifugal pump 3 comprises a pump housing 8, the structure of which, as already mentioned, partially formed from the wall part 5 of the motor assembly 2.
- the pump housing 8 further consists of a separate, e.g. concentric Circumferential wall part 9 and a suction-side end plate 10, the one has central suction hole 11, as shown in FIG. 2 shows. Both parts can be made of stainless Sheet metal exist.
- the suction-side end plate 10 has a circumferential groove 10 a, into which a Gasket (not shown) is inserted.
- the circumferential groove 10a preferably has a V shape.
- the end plate 10 has a recessed Interior 10b, which serves as a detent recess, as will become clear.
- the end plate 10 may be profiled in cross-section so as to provide favorable suction conditions to ensure the gyro 7.
- the pump housing 8 is substantially a rotationally symmetric body which is cylindrical along its axial extent or, as shown in Figs. 1 and 2, slightly convex.
- the peripheral wall part 9 advantageously has an inwardly directed one each at its ends Ring flange 12 and 13, wherein each annular flange as a contact surface for the upper wall part 5 and the lower end plate 10 of the pump housing 3rd serves. Due to the in the circumferential grooves 5a and 10a of the wall parts 5 and 10th provided sealing rings is the pump housing 3 in the region of the annular flanges 12 and 13 sealed liquid-tight.
- the recessed interior areas 5b and 10b of the wall part 5 and the connection plate 10 have on their outer periphery advantageous depending on an axial step education 5 c or 10 c low height, on the the ring flanges 12, 13 can center.
- the peripheral wall part 9 has an outwardly directed outlet port 14, the is radially extending in the case shown, but also laterally offset the means off-center, can be arranged. Between the wall part 5 and the end plate 10, the peripheral wall part 9 with the outlet port 14 in any circumferential angular position positionable.
- the peripheral wall part 9 may consist of a pipe piece or alternatively of a Metal strips consist, the circular bent and the ends together are welded.
- the end-side peripheral regions of this wall part 9 are advantageously bent inwardly and thereby form the annular flanges 12 and 13th
- the wall parts 5 and 9 and the end plate 10 of the pump housing 8 are held together by at least one clamping clamping and retaining element 15.
- a plurality, and advantageously four such elements 15 provided circumferentially are arranged approximately evenly distributed.
- the peripheral wall part 9 still has solid, suitable clamping means, for. B. short tongue parts, which the wall part 5 of the motor assembly 2 and the lower Locking plate 10 clamped to the peripheral wall part 9 hold, if the only element 15 is provided opposite.
- That or these holding elements 15 preferably consist of an arcuate bracket with end-side Locking means 16.
- the locking means 16 engage in the counter-locking means of the wall part 5 and the suction-side end plate 10, wherein the counter-locking means are formed by the already mentioned recessed inner regions 5b and 10b.
- brackets especially when disassembling the pump housing 3 easy
- this wall part along a portion of its circumference with a partial spiral bulge be provided (not shown).
- the bulge is at its greatest radial Extension formed open, and at this open end of the bulge closes an outlet according to the outlet 14 of vorstehned described peripheral wall part 9 at.
- a spiral is correct Pump housing with the pump housing described further above 8 match.
- the pump housing 8 with an annular Provided foot part 18, which also by clamping attachment to the Pump housing is held.
- the foot has an upper, annular Edge region 19 with locking recesses 20 for the clamp-shaped clamping and Retaining elements 15.
- the foot part with the edge area in the recessed inner portion 10 b of the suction-side end plate 10 is inserted, and the lower locking means 16 of the clamp-shaped elements 15 engage in the locking recesses 20, so that the foot part together with the suction-side end plate 10 is held clamped to the peripheral wall part 9.
- That too Foot part 18 may be formed of stainless sheet material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
- Fig. 1
- eine Seitenansicht auf das Ausfuhrungsbeispiel,
- Fig. 2
- eine Seitenansicht auf eine auseinandergezogene Darstellung des Ausführungsbeispieles.
Claims (8)
- Kreiselpurnpenaggregat, bestehtend aus einen Elektromotor (4) und einer davon angetriebenen Kreiselpumpe (3) mit einem Kreiselrad (7) und mit einem dieses umgebenden Pumpengehäuse (8) wobei eine Motorbaueinheit gebildet ist, die auch das Kreiselrad (7) und mindestens ein Wandteil (5) für die Pumpe (3) aufweist, und wobei der übrige Aufbau des Pumpengehäuses (8) ein zentrales Ausgangsloch (11) und einen Auslaßstutzen (14) aufweist und über mindestens ein klemmendes Spann- und Halteelement (15) lösbar mit der Motorbaueinheit (2) verbunden ist, dadurch gekennzeichnet, dass das Wandteil (5) der Motorbaueinheit (2) ein Wandteil für das Pumpengehäuse (8) bildet, dass der übrige Aufbau des Pumpengehäuses (8)ein Umfangswandteil (9) mit dem von ihm nach auswärts abgehenden Auslaßstutzen (14) und eine saugseitige Abschlußplatte (10) mit dem zentralen Ansaugloch (11) aufweist, dass das die Pumpengehäusewand bildende Wandteil (5) der Motorbaueinheit (2) und die saugseitige Abschlußplatte (10) an dem Umfangswandteil (9) mittels des Spann- und Halteelementes (15) klemmbefestigt anliegen, dass das Umfangswandteil (9) aus einem Rohrstück oder aus einem kreisförmig gebogenen und an den beiden Enden miteinander verschweißten Metallstreifen gebildet ist, dass das oder jedes Spann- und Halteelement (15) aus einer bogenförmigen Klammer mit einem handbetätigbaren Fortsatz (17) und mit endseitigen Rastmitteln (16) besteht und dass diese Rastmittel in Gegenrastmittel in Form je eines vertieften Bereiches (5b, 10b), des Wandteils (5) und der Abschlußplatte (10) einschnappen.
- Aggregat nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Umfangswandteil (9) an seinen beiden Enden je einen einwärts gerichteten, kreisförmigen Ringflansch als Anlagefläche für das Wandteil (5) und die Abschlußplatte (10) aufweist.
- Aggregat nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Umfangswandteil (9) entlang seiner axialen Erstreckung konvex geformt ist.
- Aggregat nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Umfangswandteil (9) entlang seiner axialen Erstreckung zylindrisch geformt ist.
- Aggregat nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Umfangswandteil (9) entlang eines Abschnittes seines Umfanges mit einer spiralförmigen, tangential offenen Ausbauchung versehen ist und dass sich an das offene Ende der Ausbauchung der Auslassstutzen (14) des Umfangswandteils anschließt.
- Aggregat nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnetdass der übrige Aufbau des Pumpengehäuses (8) ein ringförmiges Fußteil (18) aufweist, das zusammen mit der saugseitigen Abschlussplatte (10) und dem Umfangswandteil (9) an dem einen Pumpenwandteil bildenden Wandteil (5) der Motorbaueinheit (2) klemmbefestigt ist.
- Aggregat nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Wandteil (5), das Umfangswandteil (9) und die Abschlussplatte (10) des Pumpengehäuses (8) und das Fußteil (18) aus rostfreiem Blechmaterial geformt sind.
- Aggregat nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der vertiefte Innenbereich (5b , 10b) des das Pumpenwandteil bildenden Wandteils (5) der Motorbaueinheit und der Abschlußplatte (10) je eine axiale Stufenausbildung (5c, 10c) aufweist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853400A DE19853400C1 (de) | 1998-11-19 | 1998-11-19 | Kreiselpumpenaggregat |
| DE19853400 | 1998-11-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1002959A2 EP1002959A2 (de) | 2000-05-24 |
| EP1002959A3 EP1002959A3 (de) | 2000-08-30 |
| EP1002959B1 true EP1002959B1 (de) | 2005-06-08 |
Family
ID=7888356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99122438A Expired - Lifetime EP1002959B1 (de) | 1998-11-19 | 1999-11-11 | Kreiselpumpenaggregat |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1002959B1 (de) |
| DE (2) | DE19853400C1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4878763B2 (ja) * | 2005-03-18 | 2012-02-15 | 株式会社不二工機 | 排水ポンプの室内ユニットへの取付構造 |
| DE102006016981A1 (de) * | 2006-04-06 | 2007-10-11 | Alfred Kärcher Gmbh & Co. Kg | Tauchpumpe |
| DE102006045797B4 (de) * | 2006-09-26 | 2011-08-25 | Hanning Elektro-Werke GmbH & Co. KG, 33813 | Pumpe und Montageverfahren |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1302474B (de) * | 1970-12-03 | |||
| US2370202A (en) * | 1942-09-14 | 1945-02-27 | Crown Cork & Seal Co | Vacuum producing apparatus |
| GB1128523A (en) * | 1965-06-25 | 1968-09-25 | Ass Elect Ind | Improvements in centrifugal pumps |
| US3425315A (en) * | 1968-02-19 | 1969-02-04 | North American Rockwell | Strand carrier for braiding machines |
| US3491696A (en) * | 1968-10-11 | 1970-01-27 | Henry H Howard | Centrifugal pump |
| DE1959087A1 (de) * | 1969-11-25 | 1971-05-27 | Hanning Elektro Werke | Gehaeuse fuer Motorpumpen |
| US3819297A (en) * | 1972-09-11 | 1974-06-25 | Gen Gas Light Co | Centrifugal pump assembly |
| US3953146A (en) * | 1974-08-15 | 1976-04-27 | Whirlpool Corporation | Apparatus for treating lint in an automatic washer |
| US4904166A (en) * | 1988-11-30 | 1990-02-27 | White Consolidated Industries, Inc. | Vertical axis motor-pump assembly for clothes washing machine |
-
1998
- 1998-11-19 DE DE19853400A patent/DE19853400C1/de not_active Expired - Fee Related
-
1999
- 1999-11-11 EP EP99122438A patent/EP1002959B1/de not_active Expired - Lifetime
- 1999-11-11 DE DE59912145T patent/DE59912145D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE19853400C1 (de) | 2000-07-20 |
| DE59912145D1 (de) | 2005-07-14 |
| EP1002959A2 (de) | 2000-05-24 |
| EP1002959A3 (de) | 2000-08-30 |
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