EP1217217B1 - Water supply installation - Google Patents
Water supply installation Download PDFInfo
- Publication number
- EP1217217B1 EP1217217B1 EP01130171A EP01130171A EP1217217B1 EP 1217217 B1 EP1217217 B1 EP 1217217B1 EP 01130171 A EP01130171 A EP 01130171A EP 01130171 A EP01130171 A EP 01130171A EP 1217217 B1 EP1217217 B1 EP 1217217B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water supply
- supply installation
- terminal box
- drive motor
- flow 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.)
- 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
- 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
- F04D13/0686—Mechanical details of the pump control unit
-
- 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
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- 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
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
Definitions
- the invention is based on a domestic waterworks such as for example EP 0 639 715 A1 is known.
- the end EP 0 639 715 A1 known domestic water plant comprises a centrifugal pump, which is driven by an electric drive motor, on the drive motor outside a frequency converter is arranged, the control electrics is electrically conductively connected to a pressure sensor, which is arranged on the pressure side of the pump in a deposition chamber and thus the pressure at the delivery outlet of the centrifugal pump of the domestic waterworks detected.
- the motor and the frequency converter are cooled by a partial flow of the pumped liquid, which flows through a flow space between the drive motor and the frequency converter.
- domestic waterworks which have external water-carrying and electrical lines to provide operating parameters provided from outside to the domestic waterworks sensor and switching devices to the terminal box of the drive motor for pump operation.
- Such relatively long lines represent additional components, require increased installation costs, require a considerable amount of space, have a disturbing and are prone to damage.
- the invention has the object to improve a domestic waterworks of the type mentioned.
- This solution eliminates the external water-carrying and electrical lines and the external arrangement of sensor and switching devices for detecting important operating parameters for the domestic waterworks, so that this has a compact design.
- the required sensor and switching devices are in the terminal box of the drive motor housed so that longer electrical connection lines substantially completely eliminated, since the sensor devices, in particular the pressure control device, are connectable within the terminal box to the control electrics.
- the operative connection of the sensor devices with the receiving points for the operating parameters is hydraulically on the very shortest path from the delivery path within the domestic waterworks.
- the conveying path encloses a cooling section surrounding the electric drive motor, which advantageously connects directly to a delivery outlet formation of the centrifugal pump, a strong cooling of the electric drive motor acting in the main delivery flow is achieved in a simple manner.
- the inventive design of the domestic waterworks this can also be made with significantly reduced costs. Furthermore, a largely automated production of the domestic waterworks is possible by the inventive design of the domestic waterworks, so that it can be manufactured inexpensively in large quantities. Due to the construction of the domestic waterworks according to the invention, it is also easier to meet country-specific safety regulations for the operation of the domestic waterworks and to take into account in its manufacture.
- a flow channel as an additional section of the flow path and a flow switch are provided, wherein the flow monitor connected within the terminal box both at the control electrics and for detecting the flow rate in the pumped liquid in the flow channel is trained.
- the flow monitor can also be arranged with very short connection connections for its operation and its function in the terminal box.
- this is provided as a straight channel in the lower region of the terminal box and extends axially parallel to the common axis of rotation of the drive motor and the centrifugal pump.
- Another advantageous construction is that to the flow channel in the terminal box on the side facing away from the centrifugal pump side of the drive motor of the domestic water plant provided water pressure accumulator is connected, which may be partially incorporated in the housing of the domestic waterworks.
- the water pressure accumulator can also be connected to the conveying path in a functional and space-saving manner and arranged at the domestic waterworks.
- the generally designated 1 house water after FIG. 1 comprises as essential components a self-priming centrifugal pump 2 with a suction nozzle 2 a and an electric drive motor 4 with a terminal box 3.
- the domestic waterworks has a common foot 5 and a delivery outlet 6. Furthermore, the domestic waterworks may be provided with a water pressure accumulator 7, which is provided on the side facing away from the centrifugal pump 2 of the drive motor 4.
- the terminal box 3 comprises a cover 3 a and a peripheral wall 3 b, which is formed with a housing wall 4 a of the domestic waterworks as a one-piece component as an injection molded component.
- the centrifugal pump 2 is formed in several stages; However, it can also be a single-stage pump. Furthermore, in FIG. 2 to recognize that the housing wall 4 a of the domestic waterworks 1 circumferentially surrounds the electric drive motor 4 at a distance, so that an annular peripheral space is formed, which serves as a cooling chamber 8 to cool the motor 4 with the delivery fluid directly from the centrifugal pump 2.
- the centrifugal pump has a substantially annular prinauslass an 9, through which the pumped liquid passes from the pump to the cooling chamber 8.
- the centrifugal pump has a substantially annular prinauslass an 9 through which the pumped liquid passes from the pump to the cooling chamber 8.
- the centrifugal pump has a substantially annular prinauslass an a substantially annular centrlass ester 9 through which the pumped liquid passes from the pump to the cooling chamber 8.
- the centrifugal pump has a substantially annular prinauslass ester 9 through which the pumped liquid passes from the pump to the cooling chamber 8.
- the centrifugal pump In
- a pressure control device 12 is provided in the terminal box 3.
- the pressure control device has a connection opening 13, which forms a connection to the annular cooling space 8.
- the pressure control means effects an electric control signal in the control electrics (not shown) in the terminal box 3 to turn on and off the electric drive motor 4 which drives the centrifugal pump 2 in accordance with the detected pressure.
- a flow channel 14 is provided in the terminal box 3.
- This flow channel is preferably as a straight channel in the lower region of the terminal box
- the flow channel 14 is constructed such that it is also produced together with the one-piece injection-molded component mentioned above as an integral one-piece injection-molded component.
- a flow switch 16 is provided in the terminal box 3, the rotating measuring wheel 17 is provided in the flow channel 14.
- the flow monitor 16 is electrically connected to the control electrics (not shown) of the terminal box, so that the measurement signals of the flow monitor can be processed in the control electronics.
- the control signals thus obtained are also used to switch the electric drive motor 4 and thus the centrifugal pump 2 or to control.
- the flow channel 14 is connected via an inflow side of this channel provided connection opening 18 with the cooling chamber 8, so that the motor 4 flowing around the pumped liquid from the cooling chamber 8 enters the flow channel and this behind the measuring wheel 17 of the flow monitor 16 via the discharge outlet 6 of the domestic waterworks first leaves.
- an internal conveyor path is formed by means of the annular cooling chamber 8 and the adjoining flow channel 14, which ends at the delivery outlet 6 of the domestic waterworks.
- the cooling chamber 8 and the flow channel 14 thus form part of the conveyor path. If a flow monitor 16 is not needed, the internal flow through the domestic waterworks can also be designed so that the cooling chamber 8 is connected directly to the delivery outlet 6 of the domestic waterworks, so that the flow channel 14 is omitted.
- the pressure control device simultaneously with both the flow channel 14 and the refrigerator 8 communicates, under the condition that the connection opening 18 is closed or deleted.
- the latter is z. B. conceivable if a pressurized water storage is connected to the flow channel 14, as will become clear.
- the space 12a of the pressure control device 12 then communicates not only via the opening 14a with the flow channel 14, but also via the valve opening 12b (FIG. Fig. 5 ).
- the pressure control device thus also acts as a pressure-holding device for a water pressure desired at the delivery outlet 6 of the domestic waterworks 1.
- the respective desired water pressure can be preselected, in accordance with FIG Fig.
- the membrane 20 with the valve stem 21 of the device 12 by means of the spring 21 a and the adjustable thread 22 via a setting plate 23 is axially adjusted.
- the lid 3a of the terminal box 3 can be opened, or it is alternatively provided in the lid 3a, a closable Einstellö réelle (not shown, but readily understood by the skilled person).
- the house waterworks can be provided with a water pressure accumulator 7 per se known type.
- This water pressure accumulator is connected on the inflow side directly to the flow channel, whereby a separate connecting line between the pressurized water reservoir 7 and the flow channel 14 is omitted.
- the affiliation of the pressurized water tank to the rest of the house water works so that the pressurized water tank is at least partially incorporated in a connection housing part 4b of the domestic waterworks to secure the pressurized water storage mechanically securely mounted on the aforementioned housing wall 4a of the domestic waterworks.
- the centrifugal pump 2 conveys its pumped liquid via its bainlosscus realise 9 in the refrigerator 8, where they flows around the encapsulated electric drive motor 4 circumferentially and thereby cools.
- the delivery fluid then passes through the connection opening 18 in the flow channel 14, flows through this and then passes through the delivery outlet 6 of the domestic waterworks 1 in a connected supply line.
- a corresponding pressure parameter of the delivery fluid is detected by means of the pressure control device 12, while a corresponding parameter for the flow rate of the delivery fluid is determined when flowing through the flow channel 14. From these parameters, control signals or switching signals for the electric drive motor 4 are developed in the control electrics of the terminal box 3 to finally operate the centrifugal pump 2 in conjunction with the other, set in the control electrics operating parameters, ie turn on and off.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Die Erfindung geht aus von einem Hauswasserwerkwie es beispielsweise aus
Das aus
Darüber hinaus zählt es aus
Darüber hinaus sind Hauswasserwerke bekannt, die externe wasserführende und elektrische Leitungen aufweisen, um Betriebsparameter von außen an den Hauswasserwerken vorgesehenen Sensor- und Schalteinrichtungen zu dem Klemmenkasten des Antriebsmotors für den Pumpenbetrieb zu liefern. Solche verhältnismäßig langen Leitungen stellen zusätzliche Bauteile dar, bedingen erhöhte Montagekosten, erfordern einen erheblichen Platzbedarf, wirken störend und sind für Beschädigungen anfällig. Diese Nachteile bewirken, dass von einer weitgehend automatisierten Fertigung eines Hauswasserwerks abgesehen wird, insbesondere wenn es sich dabei um große Stückzahlen handelt.In addition, domestic waterworks are known, which have external water-carrying and electrical lines to provide operating parameters provided from outside to the domestic waterworks sensor and switching devices to the terminal box of the drive motor for pump operation. Such relatively long lines represent additional components, require increased installation costs, require a considerable amount of space, have a disturbing and are prone to damage. These drawbacks mean that a largely automated production of a domestic waterworks is dispensed with, especially if these are large quantities.
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, ein Hauswasserwerk der eingangs genannten Art zu verbessern.Against this background, the invention has the object to improve a domestic waterworks of the type mentioned.
Diese Aufgabe wird gemäß der Erfindung durch die In Anspruch 1 aufgeführten Merkmale gelöst.This object is achieved according to the invention by the features listed in claim 1.
Durch diese Lösung entfallen die externen wasserführenden und elektrischen Leitungen und die äußere Anordnung von Sensor- und Schalteinrichtungen zur Erfassung wichtiger Betriebsparameter für das Hauswasserwerk, so dass dieses einen kompakten Aufbau aufweist. Die erforderlichen Sensor- und Schalteinrichtungen sind in dem Klemmenkasten des Antriebsmotors untergebracht, so dass längere elektrische Anschlussleitungen im Wesentlichen vollständig entfallen, da die Sensoreinrichtungen, insbesondere die Drucksteuereinrichtung, innerhalb des Klemmenkastens an dessen Steuerelektrik anschließbar sind. Auch die Wirkverbindung der Sensoreinrichtungen mit den Aufnahmestellen für die Betriebsparameter erfolgt hydraulisch auf allerkürzestem Weg von dem Förderweg innerhalb des Hauswasserwerkes. Aufgrund des Merkmals, dass der Förderweg eine den elektrischen Antriebsmotor umgebende Kühlstrecke einschließt, die sich vorteilhaft direkt an eine Förderauslassausbildung der Kreiselpumpe anschließt, wird auf einfache Weise eine starke und im Hauptförderstrom wirkende Kühlung des elektrischen Antriebsmotors erzielt. Durch die erfindungsgemäße Ausbildung des Hauswasserwerkes kann dieses ferner mit erheblich verringerten Kosten hergestellt werden. Weiterhin ist durch die erfindungsgemäße Ausbildung des Hauswasserwerkes auch eine weitgehend automatisierte Herstellung des Hauswasserwerkes möglich, so dass es kostengünstig in hohen Stückzahlen gefertigt werden kann. Durch die erfindungsgemäße Konstruktion des Hauswasserwerkes ist es des Weiteren einfacher möglich, länderspezifische Sicherheitsvorschriften für den Betrieb des Hauswasserwerkes zu erfüllen und bei seiner Herstellung zu berücksichtigen.This solution eliminates the external water-carrying and electrical lines and the external arrangement of sensor and switching devices for detecting important operating parameters for the domestic waterworks, so that this has a compact design. The required sensor and switching devices are in the terminal box of the drive motor housed so that longer electrical connection lines substantially completely eliminated, since the sensor devices, in particular the pressure control device, are connectable within the terminal box to the control electrics. The operative connection of the sensor devices with the receiving points for the operating parameters is hydraulically on the very shortest path from the delivery path within the domestic waterworks. Due to the feature that the conveying path encloses a cooling section surrounding the electric drive motor, which advantageously connects directly to a delivery outlet formation of the centrifugal pump, a strong cooling of the electric drive motor acting in the main delivery flow is achieved in a simple manner. The inventive design of the domestic waterworks this can also be made with significantly reduced costs. Furthermore, a largely automated production of the domestic waterworks is possible by the inventive design of the domestic waterworks, so that it can be manufactured inexpensively in large quantities. Due to the construction of the domestic waterworks according to the invention, it is also easier to meet country-specific safety regulations for the operation of the domestic waterworks and to take into account in its manufacture.
Besonders vorteilhaft bei dem erfindungsgemäßen Hauswasserwerk ist es, dass in dem Klemmenkasten ein Strömungskanal als eine zusätzliche Teilstrecke des Strömungsweges und ein Strömungswächter vorgesehen sind, wobei der Strömungswächter innerhalb des Klemmenkastens sowohl an dessen Steuerelektrik angeschlossen als auch zum Erfassen der Strömungsgeschwindigkeit in der Förderflüssigkeit in dem Strömungskanal ausgebildet ist. Durch diese Ausbildung kann auch der Strömungswächter mit sehr kurzen Anschlussverbindungen für seinen Betrieb und seine Funktion in dem Klemmenkasten angeordnet sein.It is particularly advantageous in the domestic waterworks according to the invention that in the terminal box, a flow channel as an additional section of the flow path and a flow switch are provided, wherein the flow monitor connected within the terminal box both at the control electrics and for detecting the flow rate in the pumped liquid in the flow channel is trained. By virtue of this design, the flow monitor can also be arranged with very short connection connections for its operation and its function in the terminal box.
In vorteilhafter Ausgestaltung des Strömungskanals ist dieser als gerader Kanal im unteren Bereich des Klemmenkastens vorgesehen und verläuft achsparallel zur gemeinsamen Drehachse des Antriebsmotors und der Kreiselpumpe. Hierdurch wird eine einfache gießtechnische Herstellung des Strömungskanals ermöglicht.In an advantageous embodiment of the flow channel this is provided as a straight channel in the lower region of the terminal box and extends axially parallel to the common axis of rotation of the drive motor and the centrifugal pump. As a result, a simple casting-technical production of the flow channel is made possible.
Eine andere vorteilhafte Konstruktion besteht darin, dass an den Strömungskanal in dem Klemmenkasten ein auf der der Kreiselpumpe abgekehrten Seite des Antriebsmotors des Hauswasserwerkes vorgesehener Wasserdruckspeicher angeschlossen ist, der teilweise in dem Gehäuse des Hauswasserwerkes eingegliedert sein kann. Hierdurch kann auch der Wasserdruckspeicher funktionsgünstig und platzsparend an den Förderweg angeschlossen und an dem Hauswasserwerk angeordnet werden.Another advantageous construction is that to the flow channel in the terminal box on the side facing away from the centrifugal pump side of the drive motor of the domestic water plant provided water pressure accumulator is connected, which may be partially incorporated in the housing of the domestic waterworks. As a result, the water pressure accumulator can also be connected to the conveying path in a functional and space-saving manner and arranged at the domestic waterworks.
Die Erfindung ist nachstehend anhand eines in den anliegenden Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:
- Fig. 1
- Eine perspektivische Ansicht des Hauswasserwerkes,
- Fig. 2
- einen Längsschnitt durch das Hauswasserwerk,
- Fig. 3
- eine Aufsicht auf das Hauswasserwerk mit geöffnetem Klemmenkas- ten,
- Fig. 4
- einen Teilquerschnitt nach der Linie IV - IV in
,Figur 3 - Fig. 5
- einen weiteren Teilquerschnitt gemäß
.Figur 4
- Fig. 1
- A perspective view of the domestic waterworks,
- Fig. 2
- a longitudinal section through the house waterworks,
- Fig. 3
- a view of the domestic waterworks with the terminal box open,
- Fig. 4
- a partial cross section along the line IV - IV in
FIG. 3 . - Fig. 5
- another partial cross section according to
FIG. 4 ,
Das allgemein mit 1 bezeichnete Hauswasserwerk nach
Nach
Wie es aus den
Wie es aus den
Der Strömungskanal 14 ist über eine zuströmseitig dieses Kanals vorgesehene Verbindungsöffnung 18 mit dem Kühlraum 8 verbunden, so dass die den Motor 4 umströmende Förderflüssigkeit aus dem Kühlraum 8 in den Strömungskanal gelangt und diesen hinter dem Messrad 17 des Strömungswächters 16 über den Förderauslass 6 des Hauswasserwerkes 1 verlässt.The
In dem Hauswasserwerk 1 ist mittels des ringförmigen Kühlraumes 8 und des sich daran anschließenden Strömungskanals 14 ein interner Förder weg ausgebildet, der am Förderauslass 6 des Hauswasserwerkes endet. Der Kühlraum 8 und der Strömungskanal 14 bilden somit Teilstrecken des Förderweges. Wenn ein Strömungswächter 16 nicht benötigt wird, kann der interne Förderweg durch das Hauswasserwerk auch so gestaltet sein, dass der Kühlraum 8 direkt an den Förderauslass 6 des Hauswasserwerkes angeschlossen ist, so dass der Strömungskanal 14 entfällt.In the domestic waterworks 1, an internal conveyor path is formed by means of the
Des Weiteren ist es auch möglich, dass die Drucksteuereinrichtung gleichzeitig sowohl mit dem Strömungskanal 14 als auch mit dem Kühlraum 8 kommuniziert, und zwar unter der Bedingung, dass die Verbindungsöffnung 18 geschlossen ist bzw. entfällt. Letzteres ist z. B. denkbar, wenn an den Strömungskanal 14 ein Druckwasserspeicher angeschlossen ist, wie noch klar wird. Der Raum 12a der Drucksteuereinrichtung 12 kommuniziert dann nicht nur über die Öffnung 14a mit dem Strömungskanal 14, sondern auch über die ventilöffnung 12b (
Wie die
Im Betrieb des Hauswasserwerkes fördert die Kreiselpumpe 2 ihre Förderflüssigkeit über ihre Förderauslosscusbildung 9 in den Kühlraum 8, wo sie den gekapselten elektrischen Antriebsmotor 4 umfangsmäßig umströmt und dadurch kühlt. Die Förderflüssigkeit gelangt dann weiter über die Verbindungsöffnung 18 in den Strömungskanal 14, durchströmt diesen und gelangt dann über den Förderauslass 6 des Hauswasserwerkes 1 in eine angeschlossene Versorgungsleitung. Beim Durchströmen des Kühlraumes 8 wird mittels der Drucksteuereinrichtung 12 ein entsprechender Druckparameter der Förderflüssigkeit festgestellt, während beim Durchströmen des Strömungkanales 14 ein entsprechender Parameter für die Strömungsgeschwindigkeit der Förderflüssigkeit festgestellt wird. Aus diesen Parametern werden in der Steuerelektrik des Klemmenkastens 3 Steuersignale bzw. Schaltsignale für den elektrischen Antriebsmotor 4 entwickelt, um schließlich die Kreiselpumpe 2 in Verbindung mit den übrigen, in der Steuerelektrik voreingestellten Betriebsparametern zu betreiben, d. h. einzuschalten und auszuschalten.During operation of the domestic waterworks, the
Claims (9)
- A water supply installation, comprising a self-priming centrifugal pump (2), an electric drive motor (4) with a terminal box (3) for the centrifugal pump (2), said terminal box (3) comprising control electronics, and a pressure control device (12) which cooperates with the delivery pressure of the delivery fluid of the centrifugal pump (2) flowing to a delivery outlet (6) of the water supply installation (1), with which a conveyor path for the delivery fluid of the centrifugal pump (2), which extends from the centrifugal pump (2) up to the conveyor outlet (6) of the water supply installation (1) and which surrounds the drive motor (4), is provided, and the pressure control device (12) is arranged in the terminal box (3) and therein is connected to its control electronics and is designed for detecting the pressure of the delivery fluid in the conveyor path, wherein a flow channel (14) as a part path of the delivery path, which is arranged downstream of the drive motor (4), and a flow monitor (16) are provided in the terminal box (3), and that the flow monitor (16) within the terminal box (3) is designed connected to its control electronics as well as for detecting the flow speed of the delivery fluid in the flow channel (14).
- A water supply installation according to claim 1, with which the conveyor path includes a cooling space (8) surrounding the electrical drive motor (4) at least on its periphery, and the pressure control device (12) is provided with a connection opening to the cooling space (8) for detecting the pressure of the delivery fluid.
- A water supply installation according to claim 1, with which the conveyor path includes a cooling space (8) surrounding the electrical drive motor (4) at least on its periphery, and with which the pressure control device (12) communicates with the flow channel (14) and the cooling space (8) for maintain a desired pressure of the delivery fluid.
- A water supply installation according to one of the preceding claims, with which the flow channel (14) is provided as a straight channel in the lower region of the terminal box (3).
- A water supply installation according to one of the preceding claims, with which the flow channel (14) runs axis-parallel to the common rotation axis of the drive motor (4) and of the centrifugal pump (2).
- A water supply installation according to one of the preceding claims, with which the flow channel (14) in the terminal box (3), a housing wall (4a) of the water supply installation (1) said housing wall (4a) surrounding the electrical drive motor (4) at a distance, and a lower peripheral wall (3b) of the terminal box, said peripheral wall (3b) bordering the housing wall, are designed together as a single-piece injection moulded component.
- A water supply installation according to one of the preceding claims, with which a water pressure tank (7) provided on the side of the drive motor (4) which is distant to the centrifugal pump (2), is connected to the flow channel (14) in the terminal box (3).
- A house water according to claim 7, with which the water pressure tank (7) at least partly is integrated into a connection housing part (4b) of the water supply installation (1).
- A water supply installation according to one of the preceding claims, with which the pressure control device (12) is exposed to the pressure of the delivery fluid in the flow channel (14) via an opening (14a).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10064708 | 2000-12-22 | ||
DE10064708A DE10064708A1 (en) | 2000-12-22 | 2000-12-22 | Water works |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1217217A1 EP1217217A1 (en) | 2002-06-26 |
EP1217217B1 true EP1217217B1 (en) | 2010-07-14 |
Family
ID=7668764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01130171A Expired - Lifetime EP1217217B1 (en) | 2000-12-22 | 2001-12-19 | Water supply installation |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1217217B1 (en) |
DE (2) | DE10064708A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2641328C1 (en) * | 2015-10-15 | 2018-01-17 | Грундфос Холдинг А/С | Centrifugal pumping unit |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014006556B3 (en) * | 2014-05-06 | 2015-02-19 | Thomas Magnete Gmbh | Pump unit with electric motor |
ES2770602T3 (en) | 2015-09-23 | 2020-07-02 | Inbrooll Ind S L | Multicellular centrifugal pump with refrigerated frequency variator located between the pump and the motor |
EP3156660B1 (en) * | 2015-10-15 | 2022-04-13 | Grundfos Holding A/S | Domestic water system with centrifugal pump and membrane pressure tank |
CN114233644A (en) * | 2021-12-09 | 2022-03-25 | 浙江泰福泵业股份有限公司 | Water-cooled water pump |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2612996B1 (en) * | 1987-03-27 | 1992-05-15 | Guinard Pompes | MOTOR PUMP GROUP INTENDED IN PARTICULAR FOR LIQUID SUPPLY INSTALLATIONS |
DE4304150C1 (en) * | 1993-02-12 | 1994-05-11 | Grundfos A S Bjerringbro | Supply unit for water - comprises self-aspirating motor pump unit to which is connected hydraulic accumulator with inner membrane and control for complete unit |
DE4327735A1 (en) | 1993-08-18 | 1995-02-23 | Grundfos As | Device for supplying liquid |
DE19923350A1 (en) * | 1998-10-07 | 2000-04-13 | Gardena Kress & Kastner Gmbh | Liquid pump arrangement, in particular for use in the home and / or garden |
EP0992686A3 (en) * | 1998-10-07 | 2001-03-07 | GARDENA Kress + Kastner GmbH | Valve operated discharge control of a household pump |
EP0992685A3 (en) * | 1998-10-07 | 2001-01-31 | GARDENA Kress + Kastner GmbH | Electronic flow control of a household pump |
DE19914581A1 (en) * | 1999-03-31 | 2000-10-12 | Grundfos A S Bjerringbro | Centrifugal pump unit |
DE10013042A1 (en) * | 2000-03-17 | 2001-09-20 | Wilo Gmbh | Centrifugal pump with cooled electronics unit |
-
2000
- 2000-12-22 DE DE10064708A patent/DE10064708A1/en not_active Ceased
-
2001
- 2001-12-19 EP EP01130171A patent/EP1217217B1/en not_active Expired - Lifetime
- 2001-12-19 DE DE50115555T patent/DE50115555D1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2641328C1 (en) * | 2015-10-15 | 2018-01-17 | Грундфос Холдинг А/С | Centrifugal pumping unit |
Also Published As
Publication number | Publication date |
---|---|
EP1217217A1 (en) | 2002-06-26 |
DE10064708A1 (en) | 2002-07-11 |
DE50115555D1 (en) | 2010-08-26 |
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