EP1413769A1 - Pump with connection line to measuring points - Google Patents

Pump with connection line to measuring points Download PDF

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Publication number
EP1413769A1
EP1413769A1 EP03023372A EP03023372A EP1413769A1 EP 1413769 A1 EP1413769 A1 EP 1413769A1 EP 03023372 A EP03023372 A EP 03023372A EP 03023372 A EP03023372 A EP 03023372A EP 1413769 A1 EP1413769 A1 EP 1413769A1
Authority
EP
European Patent Office
Prior art keywords
line
groove
housing
pump
section
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.)
Granted
Application number
EP03023372A
Other languages
German (de)
French (fr)
Other versions
EP1413769B1 (en
Inventor
Edgar Budzynski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilo SE
Original Assignee
Wilo AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wilo AG filed Critical Wilo AG
Publication of EP1413769A1 publication Critical patent/EP1413769A1/en
Application granted granted Critical
Publication of EP1413769B1 publication Critical patent/EP1413769B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F04D29/42—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

Abstract

The pump housing (1) has a suction port (2) and a pressure port (3) with measurement points (6,7), especially pressure tapping points, whereby the measurement points are connected by at least one line (10) to a sensor, especially a differential pressure meter. The line lies in a groove (12) in the exterior of the housing. The groove cross-section is partly circular, especially semicircular.

Description

Die Erfindung betrifft ein Gehäuse für eine Pumpe, insbesondere für eine Kreiselpumpe mit einem Saug- und Druckstutzen, die jeweils eine Messstelle insbesondere eine Druckentnahmestelle aufweisen, wobei die Messstellen durch mindestens eine Leitung mit einem Sensor insbesondere mit einem Differenzdruckmesser verbunden sind.The invention relates to a housing for a pump, in particular for a centrifugal pump with a suction and pressure port, each of which has a measuring point, in particular a pressure tapping point, the measuring points being connected by at least one line to a sensor, in particular to a differential pressure meter.

Aus der DE 196 47 967 ist es bekannt, über im Pumpengehäuse angeordnete Leitungen Messstellen mit einem Druckdifferenzsensor zu verbinden. Solche im Pumpengehäuse befindlichen Leitungen sind schwer zugänglich und damit schwierig zu säubern und nicht zu ersetzen.From DE 196 47 967 it is known to connect measuring points to a pressure difference sensor via lines arranged in the pump housing. Such lines in the pump housing are difficult to access and therefore difficult to clean and not to replace.

Aufgabe der Erfindung ist es, ein Gehäuse der eingangs genannten Art so zu verbessern, dass die die Messstellen verbindende Leitung(en) bei einfacher Konstruktion, Herstellung und Montage leicht zugänglich ist/sind, insbesondere zur Wartung, Säuberung und zum Ersetzen.The object of the invention is to improve a housing of the type mentioned at the outset in such a way that the line (s) connecting the measuring points is / are easily accessible with simple construction, manufacture and assembly, in particular for maintenance, cleaning and replacement.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Leitung in einer in der Gehäuseaußenseite angeordneten Nut liegt.This object is achieved in that the line lies in a groove arranged in the outside of the housing.

Eine solche außen am Gehäuse in einer Nut geführte Leitung ist gut zugänglich und damit nicht nur einfach zu ersetzen, sondern auch leicht zu reinigen. Ferner kann die Leitung soweit in der Nut einliegen, dass sie gegen Beschädigungen geschützt ist.Such a line guided in a groove on the outside of the housing is easily accessible and thus not only easy to replace, but also easy to clean. Furthermore, the line can lie so far in the groove that it is protected against damage.

Vorzugsweise wird vorgeschlagen, dass der Querschnitt der Nut teilkreisförmig insbesondere halbkreisförmig ist. Eine einfache Herstellung ist gegeben, wenn die Nut in die Gehäuseaußenwand eingefräst ist.It is preferably proposed that the cross section of the groove is part-circular, in particular semicircular. Production is simple if the groove is milled into the outer wall of the housing.

Vorzugsweise wird vorgeschlagen, dass der Querschnitt der Nut zumindest einem Teil des Querschnitts der Leitung entspricht. Auch kann die Leitung in der Nut durch Klemmkraft gehalten sein.It is preferably proposed that the cross section of the groove corresponds to at least part of the cross section of the line. The line can also be held in the groove by clamping force.

Besonders vorteilhaft ist es, wenn in der Leitung eine Sensorik insbesondere eine Drucksensorik zwischengeschaltet ist. Hierbei kann die Sensorik außen am Pumpengehäuse insbesondere an einem der Stutzen nahe des Stutzenflansches befestigt sein.It is particularly advantageous if a sensor system, in particular a pressure sensor system, is interposed in the line. In this case, the sensor system can be attached to the outside of the pump housing, in particular to one of the nozzles near the nozzle flange.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen

Fig. 1
einen Längsschnitt durch die Pumpe und
Fig. 2
einen Schnitt nach II-II in Fig. 1.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it
Fig. 1
a longitudinal section through the pump and
Fig. 2
a section according to II-II in Fig. 1st

Eine Kreiselpumpe weist ein Gehäuse 1 auf, mit einem Saugstutzen 2 und einem Druckstutzen 3. Beide Stutzen besitzen einen Flansch 4 zur Befestigung.A centrifugal pump has a housing 1, with a suction nozzle 2 and a pressure nozzle 3. Both nozzles have a flange 4 for attachment.

In beiden Flanschen oder direkt neben beiden Flanschen 4 ist im Flansch bzw. in der Pumpengehäusewandung eine Bohrung 5 eingebracht, die bis zum Inneren des Stutzens führt, um dort Messstellen insbesondere Druckentnahmestellen zu bilden.In both flanges or directly next to both flanges 4, a bore 5 is made in the flange or in the pump housing wall, which leads to the inside of the connecting piece in order to form measuring points, in particular pressure tapping points.

Beide Bohrungen 5 sind durch einen Stopfen über eine Schraube verschlossen und von beiden Bohrungen 5 gehen Querbohrungen 8, 9 aus, an die mindestens eine Leitung 10 anschließbar ist. Diese Leitung führt zu einem nicht dargestellten Sensor insbesondere einem Differenzdruckmesser, der entweder in die Leitung zwischengeschaltet ist oder aber in einer der beiden Bohrungen 5 einliegt.Both bores 5 are closed by a plug with a screw and cross bores 8, 9 extend from both bores 5, to which at least one line 10 can be connected. This line leads to a sensor, not shown, in particular a differential pressure meter, which is either interposed in the line or lies in one of the two bores 5.

In der Gehäuseaußenwand 11 ist eine Nut 12 eingebracht, in die die Leitung 10 insbesondere eingeklemmt befestigt ist. Hierbei kann die Leitung teilweise oder vollständig von der Nut 12 aufgenommen sein. Vorzugsweise entspricht die Querschnittsform der Nut 12 dem Außenquerschnitt der Leitung 10. Vorzugsweise ist der Querschnitt der Nut 12 teilkreisförmig insbesondere halbkreisförmig und der Querschnitt der Leitung 10 kreisförmig.In the outer wall 11 of the housing, a groove 12 is made, in which the line 10 is particularly fastened by being clamped. Here, the line can be partially or completely received by the groove 12. The cross-sectional shape of the groove 12 preferably corresponds to the outer cross-section of the line 10. The cross-section of the groove 12 is preferably part-circular, in particular semi-circular, and the cross-section of the line 10 is circular.

Die Nut 12 kann beim Gießen des Pumpengehäuses hergestellt sein oder aber nachträglich eingefräst werden.The groove 12 can be produced when casting the pump housing or can be milled in afterwards.

Claims (7)

Gehäuse (1) für eine Pumpe, insbesondere für eine Kreiselpumpe mit einem Saug- und Druckstutzen (2, 3), die jeweils eine Messstelle (6, 7) insbesondere eine Druckentnahmestelle aufweisen, wobei die Messstellen durch mindestens eine Leitung (10) mit einem Sensor insbesondere mit einem Differenzdruckmesser verbunden sind, dadurch gekennzeichnet, dass die Leitung (10) in einer in der Gehäuseaußenseite (11) angeordneten Nut (12) liegt.Housing (1) for a pump, in particular for a centrifugal pump with a suction and pressure port (2, 3), each having a measuring point (6, 7), in particular a pressure tapping point, the measuring points being connected to at least one line (10) with a Sensor in particular connected to a differential pressure meter, characterized in that the line (10) lies in a groove (12) arranged in the outside of the housing (11). Gehäuse nach Anspruch 1, dadurch gekennzeichnet, dass der Querschnitt der Nut (12) teilkreisförmig insbesondere halbkreisförmig ist.Housing according to claim 1, characterized in that the cross section of the groove (12) is part-circular, in particular semi-circular. Gehäuse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Nut (12) in die Gehäuseaußenwand (11) eingefräst ist.Housing according to claim 1 or 2, characterized in that the groove (12) is milled into the housing outer wall (11). Gehäuse nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Querschnitt der Nut (12) zumindest einem Teil des Querschnitts der Leitung (10) entspricht.Housing according to one of the preceding claims, characterized in that the cross section of the groove (12) corresponds to at least part of the cross section of the line (10). Gehäuse nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Leitung (10) in der Nut (12) durch Klemmkraft gehalten ist.Housing according to one of the preceding claims, characterized in that the line (10) is held in the groove (12) by clamping force. Gehäuse nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass in der Leitung (10) eine Sensorik insbesondere eine Drucksensorik zwischengeschaltet ist.Housing according to one of the preceding claims, characterized in that a sensor system, in particular a pressure sensor system, is interposed in the line (10). Gehäuse nach Anspruch 6, dadurch gekennzeichnet, dass die Sensorik außen am Pumpengehäuse insbesondere an einem der Stutzen (2, 3) nahe des Stutzenflansches (4) befestigt ist.Housing according to claim 6, characterized in that the sensor system is fastened on the outside of the pump housing, in particular on one of the connecting pieces (2, 3) near the connecting piece flange (4).
EP03023372A 2002-10-22 2003-10-16 Pump with connection line to measuring points Expired - Fee Related EP1413769B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10249128A DE10249128A1 (en) 2002-10-22 2002-10-22 Pump with connecting lines to measuring points
DE10249128 2002-10-22

Publications (2)

Publication Number Publication Date
EP1413769A1 true EP1413769A1 (en) 2004-04-28
EP1413769B1 EP1413769B1 (en) 2005-07-20

Family

ID=32049539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03023372A Expired - Fee Related EP1413769B1 (en) 2002-10-22 2003-10-16 Pump with connection line to measuring points

Country Status (2)

Country Link
EP (1) EP1413769B1 (en)
DE (2) DE10249128A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007062742A1 (en) * 2005-12-03 2007-06-07 Wilo Ag Pump housing having two-point fastening
EP2626567A1 (en) * 2012-02-08 2013-08-14 Grundfos Holding A/S Pump casing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014006556B3 (en) * 2014-05-06 2015-02-19 Thomas Magnete Gmbh Pump unit with electric motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774583A1 (en) * 1995-11-14 1997-05-21 Grundfos A/S Casing for a centrifugal pump
DE19647967A1 (en) * 1996-11-20 1998-05-28 Wilo Gmbh Pump esp. motor driven centrifugal pump with sensor determining pressure differences
DE10035458A1 (en) * 1999-08-02 2001-02-22 Wilo Gmbh Combination measurement sensor for monitoring operating conditions in centrifugal pump accommodates temperature and pressure sensors in common housing
DE10007924A1 (en) * 2000-02-21 2001-08-23 Wilo Gmbh Connection device for a heating pump
RU2181480C1 (en) * 2000-09-19 2002-04-20 Открытое акционерное общество "Татнефть" Test bed to determine pressure in bosoms of stage of centrifugal pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774583A1 (en) * 1995-11-14 1997-05-21 Grundfos A/S Casing for a centrifugal pump
DE19647967A1 (en) * 1996-11-20 1998-05-28 Wilo Gmbh Pump esp. motor driven centrifugal pump with sensor determining pressure differences
DE10035458A1 (en) * 1999-08-02 2001-02-22 Wilo Gmbh Combination measurement sensor for monitoring operating conditions in centrifugal pump accommodates temperature and pressure sensors in common housing
DE10007924A1 (en) * 2000-02-21 2001-08-23 Wilo Gmbh Connection device for a heating pump
RU2181480C1 (en) * 2000-09-19 2002-04-20 Открытое акционерное общество "Татнефть" Test bed to determine pressure in bosoms of stage of centrifugal pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007062742A1 (en) * 2005-12-03 2007-06-07 Wilo Ag Pump housing having two-point fastening
US8465253B2 (en) 2005-12-03 2013-06-18 Wilo Ag Pump housing with two-point mount
EP2626567A1 (en) * 2012-02-08 2013-08-14 Grundfos Holding A/S Pump casing
WO2013117402A1 (en) * 2012-02-08 2013-08-15 Grundfos Holding A/S Pump housing
CN104114873A (en) * 2012-02-08 2014-10-22 格兰富控股联合股份公司 Pump housing
EP2626567B1 (en) 2012-02-08 2016-07-13 Grundfos Holding A/S Pump casing
CN104114873B (en) * 2012-02-08 2016-08-17 格兰富控股联合股份公司 Pump case
US9863436B2 (en) 2012-02-08 2018-01-09 Grundfos Holding A/S Pump housing

Also Published As

Publication number Publication date
DE10249128A1 (en) 2004-06-03
EP1413769B1 (en) 2005-07-20
DE50300800D1 (en) 2005-08-25

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