EP1006282A2 - Selbstansaugendes Motorpumpenaggregat - Google Patents
Selbstansaugendes Motorpumpenaggregat Download PDFInfo
- Publication number
- EP1006282A2 EP1006282A2 EP99117744A EP99117744A EP1006282A2 EP 1006282 A2 EP1006282 A2 EP 1006282A2 EP 99117744 A EP99117744 A EP 99117744A EP 99117744 A EP99117744 A EP 99117744A EP 1006282 A2 EP1006282 A2 EP 1006282A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- pump unit
- pressure
- motor pump
- water hammer
- 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.)
- Withdrawn
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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
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
- F04D15/0083—Protection against sudden pressure change, e.g. check valves
Definitions
- the invention relates to a self-priming motor pump unit according to the preamble of claim 1.
- a corresponding pump unit is e.g. from DE 43 04 149 known.
- This pump set is on the Motor shaft an ejector for self-priming Upstream rotator fixed on the shaft.
- a disadvantage of the self-priming motor pump units according to the prior art is that this due to the arrangement of their suction and pressure ports require a relatively large amount of space.
- the object of the invention is a motor pump unit to provide that little space for its installation requires and especially easy in existing ones Pipe systems can be integrated.
- the present invention relates generally to self-priming motor pump units. So it can Motor pump unit according to the invention as a side channel flow machine be carried out according to the cell washing system work or one in front of the unit have installed vacuum template.
- the water shock absorber is special in one advantageous embodiment in the area of the pressure port arranged so that pressure peaks as possible can be buffered quickly.
- the result is a particularly compact design.
- the water shock absorber securely in the unit housing housed and thus against external damage protected. Also advantageously run outside of Housing no electrical connection lines between the motor pump unit and the water shock absorber.
- A is advantageous for the pressure control of the unit Pressure sensor in the immediate vicinity of the water hammer arranged.
- the pressure sensor in the form of a Pressure sensor is advantageous in the flow direction behind the Water shock absorber arranged so that the actually in Pressure port prevailing pressure is measured.
- the Pressure sensor can, for example, also directly in the pressure port to be ordered. However, to avoid that electrical connection lines outside the housing run, the pressure sensor should still be within the Housing arranged, but as close as possible to the Pressure ports are arranged.
- the Water shock absorber must have a supply line that is in an advantageous embodiment between the engine and branches off the pressure port from the conveyor path and Medium enables to the membrane of the water shock absorber reach.
- the unit described above is suitable particularly good as a rainwater pump. Due to its compact outer shape and the integrated water shock absorber together with pressure control forms the unit according to the invention a sturdy multifunction unit that is easy to use can be assembled and integrated into existing systems leaves.
- the unit 1 shows a motor pump unit 1 with a Motor 2, which with its shaft W is a multi-stage Centrifugal pump 5 drives.
- the impellers 5a are directly on the shaft W arranged.
- the capacitor C is on the motor 2 arranged.
- the unit 1 consists of the housing parts I, II and III.
- In the housing part I is the motor 2 and the Centrifugal pump 5 arranged.
- the housing part II forms as it were the suction nozzle 3 and the delivery channel 7, the the pumped medium leads from the suction nozzle 3 to the ejector 6, the ejector 6 is used for self-priming.
- the Housing part III forms the pressure port 4.
- On the housing part III is the engine electronics 15 together with the Pressure control, as well as the water shock absorber arranged.
- the water hammer is composed of a membrane 11 which is pressurized by a spring 12.
- the pumped medium passes from the suction nozzle 3 to Delivery channel 7, from where it by means of the impellers 5a in the delivery channel 8 arrives.
- the conveyor channel 8 surrounds the Motor 2 and is in thermal via the duct walls Connection, so that the pumped medium the heat of the engine 2 and possibly the capacitor C can dissipate.
- the pumped medium reaches the conveying channel 9 of the housing part III. Arrived via a feed line 10 part of the medium to the membrane 11 of the Water hammer damper D. Most of the Pumped medium flows past the feed line 10 through the Pressure port 4 and from there into the not shown Pipe system.
- the pressure in the pressure port 4 increases via a permissible value, the membrane 11 against the Spring force of the return spring 12 in the water hammer D pushed in, increasing the volume of the delivery channel 9 briefly enlarged and the Pressure peak is reduced on the pressure side.
- the membrane 11 is sealing against the inner wall of the water shock absorber D on. So that there is pressure equalization can, is in the wall of the water shock absorber D. Opening D ', so that there is no membrane 11 behind Can build up excess pressure, the function of the water shock absorber D would affect.
- the electronics 15 ascertains by means of a pressure sensor 14 the pressure in the pressure port 4 and regulates the delivery rate the centrifugal pump 5.
- covers 16 and 18, which by means of screws 17 and 19 on the housing parts II and III are attached the latter are closed, so that especially the electrical components of the electronics 15, and the supply lines 20 against pollution and Damage is protected.
- the electrical lines from the electronics 15 to the motor 2 are in one Sealed channel 13 passing through conveyor channel 9 guided.
- FIG. 2 shows a further embodiment in which between the housing part III, which forms the pressure port and the housing part I accommodating the motor 2 Another housing part IV is arranged, in which the Electronics 15 and the water hammer D arranged are.
- the electronics 15 flowed from two sides by the pumped medium, whereby the heat generated by the electronics 15 from the medium is transported away.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (15)
- Selbstansaugendes Motorpumpenaggregat (1) mit einem elektrischen Antriebsmotor (2), einer von dem Antriebsmotor (2) antreibbaren Pumpe (5), die wenigstens ein auf der Welle des Motors (2) drehfest angeordnetes Laufrad (5a) aufweist, sowie mit einem Gehäuse, das einen Saugstutzen (3) sowie einen Druckstutzen (4) trägt und zwischen dem Saugstutzen (3) und dem Druckstutzen (4) einen Förderweg (7,8,9) bildet, dadurch gekennzeichnet, daß Saugstutzen (3) und Druckstutzen (4) in jeweils einem endseitigen Abschnitt angeordnet sind, wobei der Saugstutzen (3) und der Druckstutzen (4) zueinander koaxial angeordnet und zu der Motorwelle (W) parallel ausgerichtet sind.
- Motorpumpenaggregat (1) nach Anspruch 1, dadurch gekennzeichnet, daß zwischen Laufrad (5a) und dem Druckstutzen (4) ein insbesondere federbelasteter Wasserschlagdämpfer angeordnet ist.
- Motorpumpenaggregat (1) nach Anspruch 1, dadurch gekennzeichnet, daß der Wasserschlagdämpfer ein Membrandämpfer (11) ist.
- Motorpumpenaggregat (1) nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß der Wasserschlagdämpfer in einem dem Druckstutzen (4) benachbarten Gehäuseabschnitt angeordnet ist.
- Motorpumpenaggregat (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Druckregelung mit einem Druckaufnehmer (14) vorgesehen ist, die druckseitig einen Mindestdruck aufrecht erhält.
- Motorpumpenaggregat (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Antriebsmotor (2) ein Spaltrohrmotor ist, der im Betrieb von dem Fördermedium umgeben ist.
- Motorpumpenaggregat (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse mehrere Abschnitte im wesentlichen gleichen äußeren Querschnitts aufweist, die mittels achsparallel zu der Motorwelle (W) orientierten Schrauben zusammengehalten sind.
- Motorpumpenaggregat (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wasserschlagdämpfer nicht in dem Förderweg liegt.
- Motorpumpenaggregat (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wasserschlagdämpfer mit dem Förderweg im Bereich des Druckstutzens (4) kommuniziert.
- Motorpumpenaggregat (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wasserschlagdämpfer eine Zuleitung (10) aufweist, die zwischen dem Motor (2) und dem Druckstutzen (4) von dem Förderweg (9) abzweigt.
- Motorpumpenaggregat (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Saugstutzen (3) und der Druckstutzen (4) zu der Motorwelle (W) achsparallel versetzt angeordnet sind.
- Motorpumpenaggregat (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Laufrad ein Sauglaufrad oder ein Ejektor (6) ist, welches die erste Stufe der mehrstufigen Kreiselpumpe bildet.
- Selbstansaugendes Motorpumpenaggregat (1) mit einem elektrischen Antriebsmotor (2), einer von dem Antriebsmotor (2) antreibbaren Pumpe (5), die wenigstens ein auf der Welle des Motors (2) drehfest angeordnetes Laufrad (5a) aufweist, sowie mit einem Gehäuse, das einen Saugstutzen (3) sowie einen Druckstutzen (4) trägt und zwischen dem Saugstutzen (3) und dem Druckstutzen (4) einen Förderweg (7,8,9) bildet, dadurch gekennzeichnet, daß zwischen Laufrad (5a) und dem Druckstutzen (4) ein insbesondere federbelasteter Wasserschlagdämpfer (D) angeordnet ist.
- Selbstansaugendes Motorpumpenaggregat (1) nach Anspruch 13, dadurch gekennzeichnet, daß der Wasserschlagdämpfer (D) in dem den Druckstutzen (4) bildenden Gehäuseteil angeordnet ist.
- Verwendung des Motorpumpenaggregats (1) nach einem der vorhergehenden Ansprüche als Regenwasserpumpe.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998155845 DE19855845A1 (de) | 1998-12-03 | 1998-12-03 | Selbstansaugendes Motorpumpenaggregat |
DE19855845 | 1998-12-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1006282A2 true EP1006282A2 (de) | 2000-06-07 |
EP1006282A3 EP1006282A3 (de) | 2000-09-27 |
Family
ID=7889886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99117744A Withdrawn EP1006282A3 (de) | 1998-12-03 | 1999-09-09 | Selbstansaugendes Motorpumpenaggregat |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1006282A3 (de) |
DE (1) | DE19855845A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1719915A1 (de) * | 2005-05-06 | 2006-11-08 | SAER ELETTROPOMPE S.p.A. | Inline-Pumpe |
EP2921713A1 (de) * | 2014-03-17 | 2015-09-23 | CALPEDA S.p.A. | Pumpe mit einer schutzeinheit gegen wasserschlag |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004013380A1 (de) * | 2004-03-17 | 2005-10-06 | Wilo Ag | Pumpenlagerung in einem Druckmantel |
DE202013000051U1 (de) | 2013-01-08 | 2013-03-04 | Spinflow Gmbh | Tauchpumpe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4462752A (en) * | 1981-07-17 | 1984-07-31 | Karsten Laing | In-line centrifugal pump |
GB2186027A (en) * | 1986-02-03 | 1987-08-05 | Femmechanika | Pump housing for self-priming circulating pumps |
US5030061A (en) * | 1988-06-01 | 1991-07-09 | Ksb Aktiengesellschaft | Casing for inline centrifugal pumps |
DE4304149C1 (de) * | 1993-02-12 | 1994-09-08 | Grundfos As | Selbstansaugendes Motorpumpenaggregat |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD54885A (de) * | ||||
GB1045204A (en) * | 1964-02-11 | 1966-10-12 | Lyon Nicoll Ltd | Improvements in or relating to dynamo-electric machines |
DE2834026A1 (de) * | 1978-08-03 | 1980-02-21 | Gardena Kress & Kastner Gmbh | Transportable motorpumpe |
DE3014103A1 (de) * | 1980-04-12 | 1981-10-15 | Hermetic-Pumpen Gmbh, 7803 Gundelfingen | Pumpenaggregat mit einem mehrstufigen pumpenteil |
AT408680B (de) * | 1995-04-03 | 2002-02-25 | Atb Austria Antriebstech Ag | Verfahren zum regeln der förderhöhe einer pumpe |
DE19630778C1 (de) * | 1996-07-31 | 1997-08-07 | Grundfos As | Vorrichtung zum Umwälzen von erwärmtem Wasser |
-
1998
- 1998-12-03 DE DE1998155845 patent/DE19855845A1/de not_active Ceased
-
1999
- 1999-09-09 EP EP99117744A patent/EP1006282A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4462752A (en) * | 1981-07-17 | 1984-07-31 | Karsten Laing | In-line centrifugal pump |
GB2186027A (en) * | 1986-02-03 | 1987-08-05 | Femmechanika | Pump housing for self-priming circulating pumps |
US5030061A (en) * | 1988-06-01 | 1991-07-09 | Ksb Aktiengesellschaft | Casing for inline centrifugal pumps |
DE4304149C1 (de) * | 1993-02-12 | 1994-09-08 | Grundfos As | Selbstansaugendes Motorpumpenaggregat |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1719915A1 (de) * | 2005-05-06 | 2006-11-08 | SAER ELETTROPOMPE S.p.A. | Inline-Pumpe |
CN100523521C (zh) * | 2005-05-06 | 2009-08-05 | 赛尔电泵股份公司 | 直线式泵装置 |
EP2921713A1 (de) * | 2014-03-17 | 2015-09-23 | CALPEDA S.p.A. | Pumpe mit einer schutzeinheit gegen wasserschlag |
Also Published As
Publication number | Publication date |
---|---|
DE19855845A1 (de) | 2000-06-08 |
EP1006282A3 (de) | 2000-09-27 |
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