EP0774583B1 - Gehäuse für eine Kreiselpumpe - Google Patents
Gehäuse für eine Kreiselpumpe Download PDFInfo
- Publication number
- EP0774583B1 EP0774583B1 EP96117898A EP96117898A EP0774583B1 EP 0774583 B1 EP0774583 B1 EP 0774583B1 EP 96117898 A EP96117898 A EP 96117898A EP 96117898 A EP96117898 A EP 96117898A EP 0774583 B1 EP0774583 B1 EP 0774583B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connections
- casing
- pressure
- housing
- conduits
- 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
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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
-
- 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
Definitions
- the invention relates to a housing for a centrifugal pump.
- Centrifugal pump units with a housing of the aforementioned type are known, for example multi-stage high-pressure centrifugal pumps the Grundfos CR / CP series or heating circulation pumps of the Grundfos type DN 32-100.
- Such modern pump sets are speed controllable.
- a pressure measurement on the suction side is required and pressure side.
- Connections for pressure measurement on the suction and on on the pressure side is usually the case around lateral bores in the pressure port and in the suction port.
- these connections are made a differential pressure transducer via suitable piping connected, which detects the corresponding pressures and in the form forwards electrical signals to the control system.
- the differential pressure sensor is in these known centrifugal pump housings arranged externally and either by the manufacturer or on site during installation using appropriate piping or hose connections to the housing connections connect.
- a centrifugal pump in the pump housing one by means of a throttle valve lockable channel to be provided.
- a bypass control is used for simple, unregulated heating circulation pump units used, to reduce flow noise in the heating system.
- Such a bypass reduces the efficiency of the pump considerably.
- the invention lies Task based on a housing of the type mentioned above to further that the manufacturing and assembly costs of Pump units, in particular for speed-controlled heating circulation pumps reduced in medium and large series production can be.
- the invention provides the connections for Pressure measurement on a mounting base provided on the pump housing to arrange which for connecting a differential pressure transducer is provided, the line connections to these Connections by lying inside the housing and on the Mounting bases opening channels are formed.
- the training according to the invention has the advantage that the differential pressure sensor Can be mounted directly on the pump housing without any further piping. So that Installation and connection of the differential pressure sensor as well the electrical connection to the usually in the terminal box of the Pump unit arranged control electronics in simple Way in pump manufacture and assembly, so that the previous time-consuming piping and external installation completely eliminated.
- the manufacturer's installation of the differential pressure sensor can in the housing design according to the invention using handling machines quickly and inexpensively respectively. Furthermore, there is no risk of incorrect connections during installation and assembly of the pump on site.
- the lines to the pressure measuring connections through a common Form channel that is suction and inside the housing Connects pressure side with each other and that by means of the assembled Differential pressure transducer is separable.
- the differential pressure sensor can be in a cross hole dividing the channel sit, which is cheap to manufacture technically. Furthermore can with this training the housing for unregulated or differently regulated units are used, if a blind plug instead of the differential pressure sensor is used.
- the cables can pass through appropriate design of the core within the housing be formed. It is particularly advantageous if the lines lie in the division plane of the core box and thus in one piece can be made with the core. Especially if the lines can only have a small diameter however, this can be problematic with cast construction. For this In cases, the invention provides further training in that that one or more pipes are cast in the housing are, which form the lines to the pressure measuring connections.
- a material-removing for the formation of the assembly base Machining on at least one pad of the Housing will be required, according to a training the invention a common tube to form both lines poured into the housing to the pressure measuring connections his. This tube is then at a predetermined location, for example by squeezing in the line passage, blocked. Should the housing for pump units without differential pressure transducer used, it remains unprocessed and so that the channel formed by the pipe is blocked. If on the other hand a differential pressure transducer is to be connected, there is a material-lifting processing of the housing in the Area of the mounting base. This processing is designed so that the pressure connections by opening the pipeline be formed. Instead of a common line forming both lines Pipe can also have two separate ends Pipe blocked pipes are poured in the later processing of the assembly base to form the Pressure measurement connections and for line connection to the suction side or print page can be opened.
- the centrifugal pump housing 1 shown in Fig. 1 is part of the 2 is shown in section heating circulation pump unit, consisting of the pump housing 1, the motor housing 2, the Motor 3 and the impeller 5 driven by its shaft 4.
- the motor housing 2 is screw-fastened to the pump housing 1 has a terminal box 6 in which a frequency converter and the control electronics for the motor 3 are integrated.
- the Control electronics is electrical with a differential pressure sensor 7 connected, which is shown in Fig. 1 as an add-on module and directly attached to a mounting base 8 of the pump housing 1 is.
- the pump housing 1 shown is part of an inline pump, at the suction nozzle 9 and pressure nozzle 10 arranged axially are.
- the nozzles 9, 10 are in the embodiment shown as Connection flanges formed.
- Connections 11 are provided for pressure measurement, as has been the case up to now was provided for pump units of this type.
- these connections 11 closed by plugs, not shown.
- additional sensors or also a differential pressure meter of conventional external design be connected. In this way, such a pump housing also for state-of-the-art pump units be used.
- the suction port 9 leads to the suction chamber 12 and the pressure port 10 to the pressure chamber 13 of the pump.
- Pressure chamber 13 and suction chamber 12 are connected to each other by a channel 14 which is inside a rib 15 of the housing is arranged.
- Channel 14 is penetrated by a transverse bore 16 of larger diameter, which forms part of the mounting base 8 and either as a blind hole or is designed as a through hole.
- This bore 16 is provided for receiving the differential pressure transducer, and in such a way that the cylindrical in the transverse bore 6 Part of the differential pressure transducer interrupts the channel 14.
- the Differential pressure transducer 7 is sealing on the mounting base 8 appropriate.
- the one shown in Fig. 1 from the back Differential pressure transducer 7 also has a flat surface he on the corresponding flat surface of the mounting base 8 is flanged, a cylindrical projecting forward Part that dips into the transverse bore 16 and the channel 14 interrupts.
- differential pressure transducer 7 When the differential pressure transducer 7 is mounted, it is above that separate channel 14 to one side of the pressure side and to the other Side of the suction side pressure. If the differential pressure sensor 7 should not be installed, is in its place Provide blind plug that interrupts the channel 14 and the Closes transverse bore 16 to the outside.
- connections 17 lie within the transverse bore 16 for the pressure measurement, 3 differs in that the Connections 17 for pressure measurement to a mounting surface 18 as Mounting base are brought out.
- the lines are through a Tube 19 or more cast tubes 21 are formed.
- the in the Figures 4 and 5 indicated mounting surface lies in one plane parallel to the cutting plane, the connections 17 are by the Machining the mounting surface 18 formed open ends of the cast pipe 19 or cast pipes 21 is formed.
- the pipes shown in FIG. 3 can be cast in this way be that they each have one end in the suction or pressure chamber 12, 13 and end at the other end in the mounting surface 18, which has to be reworked in any case, e.g. B. by milling, but these line connections can also are formed differently, as follows based on the figures 4 and 5 should be clarified.
- the pump housing in still shows not finished machined state - the mounting surface 18 is not yet processed - is a continuous tube 19 in the Poured housing that from the suction chamber of the pump through the Rib 15 of the housing is guided, then the later mounting surface 18 forming plane, there is a pinch 20 and then interspersed this level to finally lead to the pressure room.
- the one formed by the pipe Line connection between suction chamber and pressure chamber is through the pinch 20 interrupted.
- the housing should have a mounting base, so the mounting surface 18 is processed accordingly, d. H. face milled or similar. It also becomes the one in this area lying part of the tube 19 and also the pinch 20 removed so that the mounting surface 18 with connections 17 to Pressure chamber or suction chamber is formed.
- a continuous poured tube 19 instead of a continuous poured tube 19 also cast two individual tubes 21 be one of which from the pressure chamber through the rib 15 to is led beyond the level in which the future mounting surface 18 should lie, and there also has a pinch 20.
- the other tube 21 is guided to the pressure port accordingly.
- the pinches 20 on the assembly-side ends of the tubes 21 are only required here to ensure that material flows in to prevent in the pipes during the casting process. Also at this version will be the bruises during processing the mounting surface 18 removed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Measuring Fluid Pressure (AREA)
Description
- Fig. 1
- in vereinfachter perspektivischer Darstellung ein Pumpengehäuse mit Montagebasis und zugehörigem Differenzdruckaufnehmer in beabstandeter Stellung vor der Montage,
- Fig. 2
- einen Längsschnitt durch ein Pumpenaggregat mit einem Gehäuse gemäß Fig. 1,
- Fig. 3
- eine Ausführungsvariante, bei der die Leitungen zu den Druckmeßanschlüssen durch ein eingegossenes Rohr gebildet sind in Darstellung nach Fig. 2,
- Fig. 4
- eine teilweise im Schnitt dargestellte Ansicht entsprechend der Pfeilrichtung IV, V in Fig. 1 der Ausführungsvariante nach Fig. 3 vor Bearbeitung der Montagebasis und
- Fig. 5
- eine Konstruktionsalternative in Darstellung nach Fig. 4.
- 1 -
- Kreiselpumpengehäuse
- 2 -
- Motorgehäuse
- 3 -
- Motor
- 4 -
- Welle
- 5 -
- Kreiselrad
- 6 -
- Klemmenkasten
- 7 -
- Differenzdruckaufnehmer
- 8 -
- Montagebasis
- 9 -
- Saugstutzen
- 10 -
- Druckstutzen
- 11 -
- Anschlüsse zur Druckmessung
- 12 -
- Saugraum
- 13 -
- Druckraum
- 14 -
- Kanal
- 15 -
- Rippe
- 16 -
- Querbohrung
- 17 -
- Anschlüsse zur Druckmessung
- 18 -
- Montagefläche
- 19 -
- eingegossenes Rohr
- 20 -
- Abquetschung
- 21 -
- eingegossene Rohre
Claims (7)
- Gehäuse für eine Kreiselpumpe mit einem saugseitigen und einem druckseitigen Leitungsanschluß (9, 10), sowie mit Anschlüssen (17) für die Druckmessung an der Saug- und an der Druckseite, wobei die Anschlüsse (17) für die Druckmessung an einer am Pumpengehäuse (1) vorgesehenen Montagebasis (8) angeordnet sind, welche zum Anschluß eines Differenzdruckaufnehmers (7) vorgesehen ist, und wobei die Leitungen zu diesen Anschlüssen durch innerhalb des Gehäuses liegende und an der Montagebasis (8, 18) mündende Kanäle (14) gebildet sind.
- Gehäuse nach Anspruch 1, dadurch gekennzeichnet, daß die Leitungen zu den Druckmessanschlüssen (17) durch einen Saug- und Druckseite verbindenden Kanal (14) gebildet sind, der durch den montierten Differenzdruckaufnehmer (7) getrennt wird.
- Gehäuse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der die Saug- und Druckseite (12, 13) verbindende Kanal (14) von einer von der Gehäuseaußenseite zugänglichen Querbohrung (16) durchsetzt ist, in die der Differenzdruckaufnehmer (7) dichtend einsetzbar ist.
- Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (1) ein Gußgehäuse ist und daß die Leitungen zu den Druckmessanschlüssen (17) durch mindestens ein in die Gehäusewand (15) eingegossenes Rohr (19) gebildet sind.
- Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Leitungen zu den Druckmessanschlüssen (17) durch ein gemeinsames in die Gehäusewand (15) eingegossenes Rohr (19) gebildet sind, das eine den Leitungsdurchgang blockierende Stelle (20) aufweist, und daß die Druckanschlüsse (17) bei der Bearbeitung der Montagebasis (18) durch Öffnen der Rohrleitung gebildet sind.
- Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Leitungen zu den Druckmessanschlüssen (17) durch in die Gehäusewand (15) eingegossene Rohre (21) gebildet sind, die jeweils endseitig eine den Leitungsdurchgang blockierende Stelle (20) aufweisen, und daß die Druckanschlüsse (17) bei der Bearbeitung der Montagebasis (18) durch Öffnen der Rohrleitungen gebildet sind.
- Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Leitungen zu den Druckmessanschlüssen (17) in einer Rippe (15) zwischen Druckflansch (10) und Saugseite (12) des Pumpengehäuses (1) liegen, an der die Montagebasis (8, 18) vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19544173 | 1995-11-14 | ||
DE19544173A DE19544173C1 (de) | 1995-11-14 | 1995-11-14 | Gehäuse für eine Kreiselpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0774583A1 EP0774583A1 (de) | 1997-05-21 |
EP0774583B1 true EP0774583B1 (de) | 2000-09-13 |
Family
ID=7778523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96117898A Expired - Lifetime EP0774583B1 (de) | 1995-11-14 | 1996-11-08 | Gehäuse für eine Kreiselpumpe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0774583B1 (de) |
DE (2) | DE19544173C1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19700965C1 (de) * | 1997-01-14 | 1998-06-04 | Grundfos As | Sensoranordnung |
DE10035458C2 (de) * | 1999-08-02 | 2002-10-24 | Wilo Gmbh | Kombi-Meßfühler |
DE10028951A1 (de) * | 2000-06-16 | 2002-01-03 | Grundfos As | Axialgleitlager für eine Nasslaufkreiselpumpe |
DE10039917A1 (de) * | 2000-08-16 | 2002-02-28 | Ksb Ag | Verfahren und Vorrichtung zur Ermittlung der Fördermenge einer Kreiselpumpe |
DE10249129A1 (de) * | 2002-10-22 | 2004-06-03 | Wilo Ag | Pumpe mit Sensor im Pumpengehäuse |
DE10249128A1 (de) * | 2002-10-22 | 2004-06-03 | Wilo Ag | Pumpe mit Verbindungsleitungen zu Messstellen |
DE102005057858A1 (de) * | 2005-12-03 | 2007-06-06 | Wilo Ag | Pumpengehäuse mit 2-Punkt-Befestigung |
DE102008017536A1 (de) * | 2008-04-03 | 2009-10-08 | Ebm-Papst Landshut Gmbh | Verfahren zur Integration eines Druckabnehmers in das Gehäuse eines Gebläses |
EP2626567B2 (de) * | 2012-02-08 | 2019-10-16 | Grundfos Holding A/S | Pumpengehäuse |
DE102015014224B4 (de) | 2015-11-04 | 2019-03-07 | Thomas Magnete Gmbh | Motorpumpenaggregat |
AU2020348498A1 (en) * | 2019-09-18 | 2022-03-31 | Weir Minerals Australia Ltd | A sensing device, system and method for a pump |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB997863A (en) * | 1962-07-24 | 1965-07-07 | B S A Harford Pumps Ltd | Improvements relating to centrifugal pumps |
JPS6140489A (ja) * | 1984-08-02 | 1986-02-26 | Ebara Corp | ポンプの流量測定方法 |
DE3642729C3 (de) * | 1986-12-13 | 1997-05-07 | Grundfos Int | Pumpenaggregat zur Förderung von Flüssigkeiten oder Gasen |
DE3923027A1 (de) * | 1989-07-13 | 1991-01-17 | Oplaender Wilo Werk Gmbh | Vorrichtung zum regeln einer pumpe |
US5129264A (en) * | 1990-12-07 | 1992-07-14 | Goulds Pumps, Incorporated | Centrifugal pump with flow measurement |
IT1257704B (it) * | 1991-12-05 | 1996-02-01 | Nocchi Pompe Spa | Pompa per acqua plurifunzionale: centrifuga, per aspirazione profonda,autoadescante, centrifuga con regolazione di pressione, autoadescante con regolazione di pressione, con dispositivo di avviamento e/0 arresto automatico |
-
1995
- 1995-11-14 DE DE19544173A patent/DE19544173C1/de not_active Expired - Fee Related
-
1996
- 1996-11-08 EP EP96117898A patent/EP0774583B1/de not_active Expired - Lifetime
- 1996-11-08 DE DE59605874T patent/DE59605874D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0774583A1 (de) | 1997-05-21 |
DE59605874D1 (de) | 2000-10-19 |
DE19544173C1 (de) | 1997-06-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69415045T2 (de) | Mehrfachventilverteiler für einen druckfühler | |
EP0774583B1 (de) | Gehäuse für eine Kreiselpumpe | |
DE4428667C2 (de) | Kombiniertes Stromregel- und Druckregelventil für eine Pumpe und mit patronenförmigem Ventilgehäuse | |
DE102009042620A1 (de) | Adapter sowie Pumpenanlage | |
EP1130342B2 (de) | Baueinheit für eine Kompaktheizungsanlage | |
DE102016102252B4 (de) | Regel- oder Absperrarmatur | |
DE102013102031B4 (de) | Aus wenigstens zwei Teilen gebildete Schraubenspindelpumpe | |
EP2107284B1 (de) | Ventilgehäuserohling, Ventilbausatz sowie Ventilgruppe | |
EP0918197B2 (de) | Baueinheit für eine Kompaktheizungsanlage | |
DE102011083475A1 (de) | Hydraulikventil für ein Kraftstoffeinspritzsystem sowie Kraftstoffeinspritzsystem | |
DE102017203286A1 (de) | Druckregelventil mit Druckübersetzungsstift | |
DE10347693A1 (de) | Verringerung von NVH (Rauschen, Schwingungen, Härte) und Gaspulsation in einem Klimaanlagenverdichter | |
DE3628177C2 (de) | Einlaufgehäuse für Strömungsmaschinen mit radialer Zuströmung | |
DE19908143C2 (de) | Geschmiedetes Kreiselpumpengehäuse | |
WO2013087842A1 (de) | Schnellkupplung | |
DE60115340T2 (de) | Hydraulische Servolenkung mit Überdruckventil | |
EP2944825B1 (de) | Pumpengehäuse mit drei Stutzen | |
DE112020003949T5 (de) | Pumpe | |
DE19512143C1 (de) | Druckabschneidungsventil mit Wechselventilkolben | |
DE102007054830A1 (de) | Hydraulischer Anschluss für ein Fluidelement und Verfahren zu seiner Herstellung | |
DE4011475A1 (de) | Topfgehaeuse | |
EP0205954B1 (de) | Verdrängermaschine | |
EP3296571A1 (de) | Vakuumpumpe | |
DE4039658C2 (de) | Stromteilventil | |
DE102022202370A1 (de) | Druckreduzierventil |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19970605 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20000324 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REF | Corresponds to: |
Ref document number: 59605874 Country of ref document: DE Date of ref document: 20001019 |
|
ITF | It: translation for a ep patent filed |
Owner name: FUMERO BREVETTI S.N.C. |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20001116 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20150925 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20151203 Year of fee payment: 20 Ref country code: GB Payment date: 20151016 Year of fee payment: 20 Ref country code: IT Payment date: 20151014 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59605874 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20161107 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20161107 |