DE102007061559A1 - Centrifugal pump with flow sensor - Google Patents
Centrifugal pump with flow sensor Download PDFInfo
- Publication number
- DE102007061559A1 DE102007061559A1 DE102007061559A DE102007061559A DE102007061559A1 DE 102007061559 A1 DE102007061559 A1 DE 102007061559A1 DE 102007061559 A DE102007061559 A DE 102007061559A DE 102007061559 A DE102007061559 A DE 102007061559A DE 102007061559 A1 DE102007061559 A1 DE 102007061559A1
- Authority
- DE
- Germany
- Prior art keywords
- sensor
- centrifugal pump
- flow
- pump according
- channel
- 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- Withdrawn
Links
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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
- F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
- F04D15/0227—Lack of liquid level being detected using a flow transducer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Kreiselpumpe mit einem Saug- und einem Druckstutzen und einem den Volumenstrom messenden Durchflusssensor.The The invention relates to a centrifugal pump with a suction and a discharge nozzle and a volume flow measuring flow sensor.
Zur Bestimmung des Arbeitspunktes einer Pumpe mittels Sensorik insbesondere des Volumenstroms ist es bekannt, den Differenzdruck an der Pumpe zu messen, indem am Saugstutzen und am Druckstutzen jeweils ein Drucksensor angeordnet ist und die Werte des Differenzdruckes verwendet werden. Dieses Messverfahren wird aufgrund der Kosten in der Regel nur in Pumpen höherer Leistung verwendet. Alternativ ist es bekannt, außerhalb der Pumpe Volumenstromsensoren in der Anlage insbesondere in Heizungsanlagen und Trinkwasseranlagen zu verwenden, in denen die Pumpe eingesetzt ist. Ein weiteres bekanntes Verfahren zur Bestimmung und Regelung des Arbeitspunktes einer Pumpe ist die sogenannte Beobachterregelung. Dies ist ein Verfahren, bei dem über die elektrischen Größen des Pumpenmotors auf den Arbeitspunkt geschlossen wird.to Determining the operating point of a pump by means of sensors in particular of the volume flow it is known the differential pressure at the pump to measure by the intake port and the discharge port each one Pressure sensor is arranged and uses the values of the differential pressure become. This measurement method is usually due to the cost only higher in pumps Power used. Alternatively, it is known outside the pump volume flow sensors in the system especially in heating systems and to use drinking water systems in which the pump is used is. Another known method for determination and regulation the operating point of a pump is the so-called observer regulation. This is a procedure where over the electrical quantities of the Pump motor is closed to the operating point.
Aufgabe der Erfindung ist, eine Kreiselpumpe zu schaffen, bei der auf technisch einfache Weise der Volumenstrom bei hoher Messgenauigkeit erfassbar ist.task The invention is to provide a centrifugal pump, in the technical easy way the volume flow with high accuracy can be detected is.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Durchflusssensor in der Wand des Saug- oder Druckstutzens lösbar befestigt ist und mit einem das Fluid- insbesondere den Flüssigkeitsstrom sensierenden Teil in den Stutzenkanal hineinreicht.These Task is inventively characterized solved, that the flow sensor in the wall of the suction or discharge nozzle solvable is attached and with a fluid, in particular the liquid flow reaching into the socket channel.
Hierdurch ist nur ein einziger Sensor zur Strömungsmessung/zur Volumenstrommessung erforderlich. Es werden keine zusätzlichen Messkomponenten außerhalb der Pumpe benötigt. Damit ist eine solche Anordnung besonders vorteilhaft bei kleineren Pumpen.hereby is only a single sensor for flow measurement / volume flow measurement required. There are no additional measurement components outside the pump needed. Thus, such an arrangement is particularly advantageous for smaller Pump.
Vorzugsweise wird vorgeschlagen, dass das sensierende Teil ein Sensorpaddel aufweist. Auch ist von Vorteil, wenn in Strömungsrichtung vor dem sensierenden Teil im Kanal ein Staukörper angeordnet ist, der am Träger des Durchflusssensors befestigt ist. Hierdurch werden genaue Messergebnisse erreicht.Preferably It is proposed that the sensing part has a sensor paddle. It is also advantageous if in the flow direction before the sensory Part in the channel a baffle is arranged on the carrier the flow sensor is attached. This results in accurate measurement results reached.
Eine einfache Konstruktion bei leichter Montage und Auswechselbarkeit der Messteile wird erreicht, wenn der Träger des Durchflusssensors einen zylindrischen Körper bildet, der in einer zylindrischen Ausnehmung der Stutzenwand einliegt. Hierzu ist auch von Vorteil, wenn der Träger des Durchflusssensors die Sensorelektronik aufnimmt.A simple construction with easy assembly and interchangeability the measuring parts is achieved when the carrier of the flow sensor is a cylindrical body forms, which rests in a cylindrical recess of the nozzle wall. This is also advantageous if the carrier of the flow sensor the Sensor electronics receives.
Ein gleichmäßiger wirbelarmer Flüssigkeitsstrom im Bereich des Sensors wird erreicht, wenn im Bereich des Sensors der Kanalquerschnitt des Druck- oder Saugstutzens im wesentlichen oval, elliptisch oder rechteckförmig mit abgerundeten Ecken ist. Hierzu ist auch von Vorteil, wenn im Bereich des Sensors der Kanal im Druck- oder Saugstutzen in Fließrichtung krümmungsfrei ist.One uniform low-turbulence liquid flow in the area of the sensor is achieved when in the area of the sensor the channel cross section of the pressure or Saugstutzens substantially oval, elliptical or rectangular with rounded corners. This is also advantageous if in Area of the sensor the channel in the pressure or suction port in the flow direction free of curvature is.
Eine frühe Ansprechbarkeit und exakte Messergebnisse werden erreicht, wenn im Bereich des Sensors der Kanalquerschnitt des Druck- oder Saugstutzens eine Verjüngung des Querschnitts aufweist.A early responsiveness and accurate measurement results are achieved when in the area of the sensor the channel cross-section of the pressure or suction nozzle a rejuvenation of Has cross section.
Zur Strömungsvergleichmäßigung wird vorgeschlagen, dass im Kanal des Saug- oder Druckstutzens in Strömungsrichtung vor und/oder hinter dem Sensor ein Gitter, Lamellen oder mindestens ein Schwert angeordnet und in Strömungsrichtung ausgerichtet ist. Hierzu kann auch an der Stelle, an der der Stutzenkanal in den Pumpenraum mündet ein Gitter, Lamellen oder mindestens ein Schwert angeordnet sein.to Flow equalization is proposed that in the channel of the suction or discharge nozzle in the flow direction before and / or behind the sensor a grid, slats or at least a sword arranged and aligned in the direction of flow is. This can also be done at the point where the neck canal in the pump room opens a grid, slats or at least one sword can be arranged.
Besonders vorteilhaft ist es, wenn der Durchflusssensor in der Wand des Pumpensaugstutzens angeordnet ist, da im Bereich des Pumpensaugstutzens eher ein ausreichend langer Kanalweg mit geringen Turbulenzen/Wirbeln erreichbar ist.Especially It is advantageous if the flow sensor is arranged in the wall of the pump suction nozzle is, as in the area of the pump suction rather a sufficiently long Channel path with low turbulence / vortex is accessible.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung in einem Schnitt dargestellt und wird im Folgenden näher beschrieben.One embodiment The invention is illustrated in the drawing in a section and will be closer in the following described.
Die
Kreiselpumpe weist eine Pumpenkammer
Der
Saugkanal
Im
geraden Kanalbereich
Zwischen
der Ausnehmung
Der
Körper
Im
Bereich des Sensors weist der Kanalbereich
Als Durchflusssensor können die unterschiedlichsten Messprinzipien zum Einsatz kommen, vorzugsweise Vortex-Prinzip, thermische, akustische und mechanische.When Flow sensor can the different measurement principles are used, preferably Vortex principle, thermal, acoustic and mechanical.
Claims (11)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007061559A DE102007061559A1 (en) | 2007-12-18 | 2007-12-18 | Centrifugal pump with flow sensor |
EP08863111A EP2220374B1 (en) | 2007-12-18 | 2008-12-17 | Centrifugal pump with flow sensor |
PCT/EP2008/010733 WO2009077166A1 (en) | 2007-12-18 | 2008-12-17 | Centrifugal pump with flow sensor |
AT08863111T ATE503114T1 (en) | 2007-12-18 | 2008-12-17 | CENTRIFUGAL PUMP WITH FLOW SENSOR |
DE502008002985T DE502008002985D1 (en) | 2007-12-18 | 2008-12-17 | CIRCULAR PUMP WITH FLOW SENSOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007061559A DE102007061559A1 (en) | 2007-12-18 | 2007-12-18 | Centrifugal pump with flow sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007061559A1 true DE102007061559A1 (en) | 2009-06-25 |
Family
ID=40469833
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007061559A Withdrawn DE102007061559A1 (en) | 2007-12-18 | 2007-12-18 | Centrifugal pump with flow sensor |
DE502008002985T Active DE502008002985D1 (en) | 2007-12-18 | 2008-12-17 | CIRCULAR PUMP WITH FLOW SENSOR |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502008002985T Active DE502008002985D1 (en) | 2007-12-18 | 2008-12-17 | CIRCULAR PUMP WITH FLOW SENSOR |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2220374B1 (en) |
AT (1) | ATE503114T1 (en) |
DE (2) | DE102007061559A1 (en) |
WO (1) | WO2009077166A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021110755A1 (en) | 2021-04-27 | 2022-10-27 | Prominent Gmbh | Procedure for recording dosing profiles |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2172654B2 (en) † | 2008-10-01 | 2013-11-20 | Grundfos Management A/S | Centrifugal pump assembly |
NZ597256A (en) * | 2009-08-11 | 2013-11-29 | Resmed Motor Technologies Inc | Single stage, axial symmetric blower and portable ventilator |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19647967A1 (en) * | 1996-11-20 | 1998-05-28 | Wilo Gmbh | Pump esp. motor driven centrifugal pump with sensor determining pressure differences |
DE10249129A1 (en) * | 2002-10-22 | 2004-06-03 | Wilo Ag | Pump with sensor in the pump housing |
DE102004037467A1 (en) * | 2004-07-30 | 2006-02-16 | Abb Patent Gmbh | Eddy type fluid flow sensor has through flow element and eddy counter on same support inserted as unit through special opening |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4437349A (en) * | 1982-09-16 | 1984-03-20 | Ford Motor Company | Vortex flow meter frequency adjustment |
US5129264A (en) | 1990-12-07 | 1992-07-14 | Goulds Pumps, Incorporated | Centrifugal pump with flow measurement |
DE9317856U1 (en) * | 1993-11-16 | 1994-01-20 | Afuema Abfüllmaschinen GmbH, 06862 Roßlau | Centrifugal pump with flow baffles |
JPH10142017A (en) * | 1996-11-11 | 1998-05-29 | Saginomiya Seisakusho Inc | Karman's vortex flow meter |
US6752027B1 (en) | 1999-04-06 | 2004-06-22 | The Foxboro Company | Vortex flowmeter including removeable and replaceable flow-obstruction element |
DE10249543A1 (en) * | 2002-10-23 | 2004-05-06 | Endress + Hauser Flowtec Ag, Reinach | vortex |
US7073394B2 (en) * | 2004-04-05 | 2006-07-11 | Rosemount Inc. | Scalable averaging insertion vortex flow meter |
-
2007
- 2007-12-18 DE DE102007061559A patent/DE102007061559A1/en not_active Withdrawn
-
2008
- 2008-12-17 EP EP08863111A patent/EP2220374B1/en active Active
- 2008-12-17 WO PCT/EP2008/010733 patent/WO2009077166A1/en active Application Filing
- 2008-12-17 DE DE502008002985T patent/DE502008002985D1/en active Active
- 2008-12-17 AT AT08863111T patent/ATE503114T1/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19647967A1 (en) * | 1996-11-20 | 1998-05-28 | Wilo Gmbh | Pump esp. motor driven centrifugal pump with sensor determining pressure differences |
DE10249129A1 (en) * | 2002-10-22 | 2004-06-03 | Wilo Ag | Pump with sensor in the pump housing |
DE102004037467A1 (en) * | 2004-07-30 | 2006-02-16 | Abb Patent Gmbh | Eddy type fluid flow sensor has through flow element and eddy counter on same support inserted as unit through special opening |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021110755A1 (en) | 2021-04-27 | 2022-10-27 | Prominent Gmbh | Procedure for recording dosing profiles |
Also Published As
Publication number | Publication date |
---|---|
EP2220374A1 (en) | 2010-08-25 |
DE502008002985D1 (en) | 2011-05-05 |
ATE503114T1 (en) | 2011-04-15 |
WO2009077166A1 (en) | 2009-06-25 |
EP2220374B1 (en) | 2011-03-23 |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |