EP1301665B1 - Pump station - Google Patents

Pump station Download PDF

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Publication number
EP1301665B1
EP1301665B1 EP01969360A EP01969360A EP1301665B1 EP 1301665 B1 EP1301665 B1 EP 1301665B1 EP 01969360 A EP01969360 A EP 01969360A EP 01969360 A EP01969360 A EP 01969360A EP 1301665 B1 EP1301665 B1 EP 1301665B1
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EP
European Patent Office
Prior art keywords
pumping station
outflow
pump
station according
opening
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
Application number
EP01969360A
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German (de)
French (fr)
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EP1301665A1 (en
Inventor
Wolfgang HÖHN
Hans-Dieter KNÖPFEL
Gerhard Meyer
Wolfgang Rösler
Hartmut Rosenberger
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KSB AG
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KSB AG
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Publication of EP1301665A1 publication Critical patent/EP1301665A1/en
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Publication of EP1301665B1 publication Critical patent/EP1301665B1/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/22Adaptations of pumping plants for lifting sewage
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/85978With pump
    • Y10T137/86035Combined with fluid receiver
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/85978With pump
    • Y10T137/86083Vacuum pump
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/85978With pump
    • Y10T137/86131Plural
    • Y10T137/86163Parallel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86187Plural tanks or compartments connected for serial flow
    • Y10T137/86204Fluid progresses by zigzag flow
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86187Plural tanks or compartments connected for serial flow
    • Y10T137/86212Plural compartments formed by baffles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86187Plural tanks or compartments connected for serial flow
    • Y10T137/86228With communicating opening in common walls of tanks or compartments

Definitions

  • the invention relates to a pumping station, comprising a building, which has at least one inlet space and at least one arranged at a different level drainage space between these at least two rooms a partition wall is disposed within the building, at least one pump fluid through such a partition in a Spout space of the building promotes the discharge space has an angle to an outlet opening arranged discharge opening, wherein the upper edge is located below a liquid level, which prevails in a downstream of the building drain.
  • Pumping stations also known as scooping, dike or relief scooping, Wasserhebewerke, irrigation pumping stations or under similar terms, must promote large volumes of water at low heights.
  • a general overview of such installations is given in the article '' Design of Schöpftechnike ", by Helmut Gschreibke and Paul Winkelmann, published in KSB Technical Reports No. 11, August 1966, pages 28-36 , known.
  • Pumping stations have to cope with different delivery heights with changing inlet-side levels and with fluctuations in the outdoor water levels downstream of the pumping station. Since the use of pumps, essentially of axial or semi-axial design, provide only relatively small delivery heights, the required for an efficient operation of the plant small variations in the delivery height for the design of such pumping stations is a problem.
  • the pump drive is provided with an angle drive and an integrated planetary gear. This serves to reduce the height in the building of the pumping station, since the drive motor can be installed horizontally. And with the planetary gearbox. In addition, a speed adjustment of the pump.
  • GB 2 027 470 A is a backflow preventer of a domestic sewage plant known, which can be regarded as a kind of precursor of today's sewage lifting equipment.
  • a pump is additionally arranged to allow for a backflow Abpoundau a temporary pumping.
  • the design of the non-return valve is backpressure-proof, as an internal partition with integrated non-return valve can be overflowed.
  • the GB-A-1 070 259 discloses for a manually operable toilet flush a system separator, with the help of a backflow of contaminated liquid is prevented in a drinking water system.
  • the invention is based on the problem to develop a pumping station, which ensures a safe and energetically favorable operation with low technical equipment and construction effort.
  • An embodiment of the invention provides that the upper edge of the drain opening is part of an adjustable opening.
  • the upper edge of the drain opening is part of an adjustable opening.
  • Another embodiment of the invention provides that in the liquid-conducting device and / or in the region of the discharge opening a flow rate measuring device is arranged.
  • the outflow opening can be arranged downstream of a predominantly horizontally extending discharge channel, a line or the like with a delivery-flow measuring device arranged therein.
  • a conveyor flow measuring device makes it possible in the simplest way to monitor up to remote diagnosis or remote maintenance of a pumping station. With the aid of a conveying current signal that can be transmitted in a different and known manner, it can be determined whether the pumping station is operating as intended.
  • a used for a flow measurement through-flow or flow-through volume range is completely filled with the conveying fluid.
  • the constant and complete filling of such a measuring section can be done by its local lowering or by a arranged at the end of the overflow threshold.
  • the flow cross section used for the measurement should always be located below the lowest water level on the discharge side, which is the basis for the design of such a pumping station.
  • a pump is equipped with fixed and / or adjustable running and / or guide devices.
  • the use of such adjustment depends on the operating conditions that are used for the pumping station.
  • the use of such pump types in a pumping station increases the investment costs, but they cause compared to so-called rigid, that is not controllable pumps, an improvement in efficiency. And this causes a significant reduction in electricity costs, which seen over a longer period of operation, such a system is cheaper to operate. Saving on energy costs reduces the lifecycle costs of the system for the operator.
  • the liquid in the ascending direction leading device is perpendicular or inclined, wherein the outlet opening is arranged parallel or inclined to the liquid level.
  • the surface of the outlet opening can also be inclined at an angle and / or relative to the horizontal. It must, just as with a horizontally extending outlet, only be ensured that a lowermost edge of the outlet opening is always located above the highest liquid level, which has been used in the planning of the pumping station on the outflow side. With this measure, it is prevented when switching off a pump that an already funded fluid flows through the outlet opening and through the pump back into the inlet chamber.
  • the outlet or its lowest edge is, albeit only slightly, always above the maximum occurring liquid level.
  • the construction-side training of the pumping station can thus be designed directly as a lifter, without having to install the previously known special lifter pipes additionally.
  • the lower Heberscheitel forms in this case the outlet opening of a pump downstream liquid leading means.
  • the design of the outlet space as a lifter is directly related to the energy savings potential of the pumping station by recovering the geodetic height difference between the bottom elevation of the heel and the level on the discharge side. This is ensured by the position of the upper edge of the discharge opening at the level of the lowest water level on the discharge side.
  • the discharge space of the pumping station When switching off the pump, the discharge space of the pumping station is ventilated by means of a fitting, whereby the lifting effect is canceled.
  • a dense formation of the discharge space is easily possible during construction work, as it can be designed cost-effectively as a concrete structure.
  • To improve the sealing effect in the discharge space can be applied in a simple manner on the wall surfaces correspondingly sealing coatings become.
  • Such a design of the pumping station makes it possible to dispense with the long lifting pipes previously used. Due to the low in this solution return quantities of the pump-side backup effort against backflow can be completely eliminated or under certain circumstances only be kept low.
  • a vacuum system for venting the discharge space can be additionally provided. This would then only during the startup of the pump in operation. Depending on the design of the pumping station and its operating conditions would be to decide whether, for example, a stronger pump drive motor or a vacuum system is given preference.
  • a further embodiment of the invention provides that a drive unit of a pump is arranged in shaft sealless design above the discharge space.
  • the drive unit such as an electric or internal combustion engine, with or without intermediate gearbox, is arranged here at a height level, which is above the highest level occurring with respect to the pumping station.
  • the drainage room would be connected to the environment.
  • the existing in the fluid device, generated by the pump dynamic pressure components of the flow are not sufficient to bridge the height level to the drive unit.
  • a shaft seal can be saved for the pump shaft, as set in the wave protection tube, a fluid level, due to which no air could enter from outside into the discharge space and affect the lifting effect.
  • the shaft protection tube can also be used to suspend the hydraulic unit from the pump in cases where a drawable hydraulic system is used.
  • the discharge space may be provided with a vent.
  • a fitting used for this purpose which is located with associated connecting lines in the dry arranged area of the pumping station is easily accessible, is of small size, easy to operate and interrupts if necessary, the lifting effect.
  • the Fig. 1 shows a pumping station 1, which has an inlet space 2 and a discharge space 3.
  • a fluid to be delivered flows from an external source, two water levels of the liquid to be conveyed are located.
  • LLWLzu stands for the lowest low water level and HHWLzu stands for the highest high water level that can occur on the inlet side of this pumping station 1.
  • a partition wall 4 is arranged, through which a pump 5 extends in a vertical arrangement.
  • a pump 5 extends in a vertical arrangement.
  • one or more - not shown - wheels are arranged.
  • the drive of the pump 5 causes a drive unit 6 arranged above the same.
  • the power transmission between the drive unit 6 and the pump 5 takes place through a shaft 7.
  • the drive unit 6 rests on the ceiling 8 of the discharge space 3 with conventional fastening means.
  • the drive unit 6 is mounted airtight on the ceiling 8, so that the discharge space 3 itself exerts a lifting action.
  • the housing of the vertically arranged pump 5 is designed as a liquid-conducting device 9, which has an open design and parallel to the liquid level extending outlet opening 10.
  • the outlet opening 10 is at a height level which is at least equal to or above the highest high water level HHWLab on the side of the outlet 11 of the pumping station 1.
  • the liquid-conducting device 9, which is designed here as a riser, opens with the open end of the pipe or the outlet opening 10 in the closed and liquid-tight inlet chamber 2 formed drainage space 3.
  • the discharge chamber 3 has a drain opening 12 through which a connection with the the pumping station 1 downstream drain 11 is produced. In the drain 11, two water levels are also shown.
  • the water level LLWLab indicates the lowest low water level and the water level HHWLab indicates the highest achievable water level on the discharge side.
  • the upper edge 13 of the discharge opening 12 from the discharge space 3 is at most at the level of the lowest water level LLWLab.
  • the outlet opening 10 of the liquid-conducting device 9 is located at least at the height of the highest high water level HHWLab on the discharge side 11.
  • the pump 5 must be provided only a maximum that conveying capacity at the same time the lowest LLWLzu in Zulaufraum to reach the highest water level HHWLab necessary is.
  • the upper edge 13 of the discharge opening 12 is part of an adjustable opening.
  • a simple vote between the upper edge 13 of the drain opening 12 and the altitude of the open outlet opening 10 of the liquid leading device 9 is carried out in the simplest way a building-side adaptation to the respective maximum and minimum water levels HHWLab and LLWLab on the discharge side 11 of the pumping station. 1
  • the upper edge is shown here as part of a height-adjustable device. It can be tightly secured by means of conventional fasteners in the discharge space. With strongly fluctuating water levels on the side of the drain 11, it is an imputed question whether, for reasons of energy saving, the upper edge 13 is formed as an adjustable in operation device.
  • Sensors 14 of flowmeters may be disposed within the liquid-conducting device 9, in the region of the discharge opening 12 or in the outflow 11.
  • the discharge space 3 has a ventilation 15.
  • This consists of a pipeline with a ventilation fitting arranged thereon. If such a ventilation fitting is opened, then the frictional connection of a liquid column flowing back into the effluent space 3 designed as a lift is interrupted due to the supply of air.
  • a pumping station 1 in which a measuring channel 16 is arranged downstream of the discharge opening 12 of the discharge space 3.
  • the highest point is at most at the level of the lowest low water level LLWLab.
  • the complete filling of the measuring channel 16 is ensured with liquid, whereby simple votingstrommeßtechnik, such as ultrasonic sensors 14, can be used for the flow rate measurement. A measurement falsifying air pockets are thereby avoided.
  • an overflow threshold 17 can be arranged in the outlet 11 of the pumping station 1.
  • Their height 17.1 is such that a minimum water level LLWLab in the measuring channel 16 is ensured under all operating conditions.
  • such a designed measuring channel 16 is designed as a culvert.
  • pump station shown represents a quasi combination of pump with downstream lift and the lifter downstream Düker.
  • the liquid-conducting device 9 is formed as a direct part of the building of the pumping station 1, in which it is part of the concrete structure.
  • This is a designed as a submersible pump pump 5 is lowered, the drive motor is surrounded by the fluid flow.
  • Such a design is very easy to install and is easy to identify for any maintenance purposes.
  • the necessary drive energy is introduced by electrical supply cable 20.
  • the principle of action is analogous to the embodiment of Fig. 1 ,
  • a vacuum system 21 is provided for venting the discharge space 3. It allows in special cases, the start of the pumping station 1 and can open into the mounting opening 8.1, combined with the ventilation 15 or arranged in a different way.
  • the inlet chamber 2 is here partially covered, since it has a covered inlet chamber 2.1 from which the pump 5 sucks. This avoids the formation of disadvantageous air-pulling vortices at low water levels.
  • the Fig. 4 shows an embodiment of a pumping station 1 with obliquely arranged pump 5.
  • a submersible motor pump unit is installed in the inclined liquid-conducting device 9.
  • Such also known as submersible pumps 5 pumps have a constantly flooded and very low maintenance engine.
  • the outlet opening 10 of the liquid-conducting device 9 can - as shown - run obliquely to the existing in the pumping station water levels.
  • the selected inclination depends on the local conditions at the installation site.
  • In the ceiling 8 of the discharge chamber 3 is an airtight sealable mounting opening 8.1 for mounting, inspection and the like from the lowered into the inlet chamber 2 is arranged Pump 5.
  • a conveying stream measuring device with associated sensors 14 can be used in a measuring channel 16.
  • the liquid-conducting device 9 has in the region of the pump 5 lowered therein a round cross-section which merges in the direction of the outlet opening 10 into a polygonal cross-section.
  • a round cross-section which merges in the direction of the outlet opening 10 into a polygonal cross-section.
  • the lower edge 18 of the outlet opening 10 is arranged at least at the level of the level HHWLab.
  • Such a design of a pumping station is very compact to produce and passable.
  • a pump 5 can be lowered directly from a supplying motor vehicle to the installation.
  • the function of the partition 4 is taken over in this compact design of a pumping station of the liquid-conducting device 9.
  • Fig. 5 is a pumping station 1 with horizontally arranged pump 5 and also in a compact design analogous to Fig. 4 shown.
  • the pump 5 may be a single or multi-stage submersible pump.
  • the partition wall 4 between the inlet 2 and drainage chamber 3 is arranged vertically.
  • the pump 5 conveys directly into a duct-shaped liquid leading means 9 and therefrom in the discharge space 3.
  • space part 3.1 of the discharge space 3 which is behind the outlet opening 10 of the liquid leading means 9 located in the flow direction, is at a lower level the top level 13 of the drain opening 12 is arranged.
  • the outlet opening 10 is in this case at least as high as the highest achievable high water level HHWLab disposed on the discharge side 11.
  • HHWLab disposed on the discharge side 11.

Description

Die Erfindung betrifft eine Pumpstation, bestehend aus einem Gebäude, welches mindestens einen Zulaufraum und mindestens einen auf einem anderen Höhenniveau angeordneten Abflußraum aufweist, zwischen diesen mindestens zwei Räumen eine Trennwand innerhalb des Bauwerkes angeordnet ist, mindestens eine Pumpe ein Fluid durch eine solche Trennwand in einen Abflußraum des Bauwerkes fördert, der Abflußraum eine im Winkel zu einer Austrittsöffnung angeordnete Abflußöffnung aufweist, wobei deren Oberkante unterhalb eines Flüssigkeitspegel befindlich ist, der in einem dem Bauwerk nachgeordneten Abfluß vorherrscht.The invention relates to a pumping station, comprising a building, which has at least one inlet space and at least one arranged at a different level drainage space between these at least two rooms a partition wall is disposed within the building, at least one pump fluid through such a partition in a Spout space of the building promotes the discharge space has an angle to an outlet opening arranged discharge opening, wherein the upper edge is located below a liquid level, which prevails in a downstream of the building drain.

Pumpstationen, auch als Schöpfwerke, Deich- oder Entlastungsschöpfwerke, Wasserhebewerke, Bewässerungspumpwerke oder unter ähnlichen Begriffen bekannt, müssen große Wassermengen bei geringen Förderhöhen fördern. Eine allgemeine Übersicht solcher Anlagen ist durch den Aufsatz'" Gestaltung von Schöpfwerken", von Helmut Göhrke und Paul Winkelmann, veröffentlicht in KSB Technische Berichte Nr. 11, August 1966, Seiten 28 - 36 , bekannt. Pumpstationen müssen bei wechselnden zulaufseitigen Pegeln und bei Schwankungen der, der Pumpstation nachgeordneten Außenwasserstände unterschiedliche Förderhöhen bewältigen. Da die Verwendung findenden Pumpen, im wesentlichen von axialer oder halbaxialer Bauart, nur relativ kleine Förderhöhen liefern, stellen die für einen effizienten Betrieb der Anlage erforderlichen geringen Schwankungen der Förderhöhe für die Auslegung einer solchen Pumpstationen ein Problem dar.Pumping stations, also known as scooping, dike or relief scooping, Wasserhebewerke, irrigation pumping stations or under similar terms, must promote large volumes of water at low heights. A general overview of such installations is given in the article '' Design of Schöpfwerke ", by Helmut Göhrke and Paul Winkelmann, published in KSB Technical Reports No. 11, August 1966, pages 28-36 , known. Pumping stations have to cope with different delivery heights with changing inlet-side levels and with fluctuations in the outdoor water levels downstream of the pumping station. Since the use of pumps, essentially of axial or semi-axial design, provide only relatively small delivery heights, the required for an efficient operation of the plant small variations in the delivery height for the design of such pumping stations is a problem.

Um die Kosten eines solchen Bauwerkes niedrig zu halten, finden vorwiegend vertikale Propellerpumpen Verwendung. Für geringewFörderhöhen bis etwa 2 Meter ist es aus dem obigen Aufsatz bekannt, eine sogenannte offene Propellerpumpe zu verwenden. Dabei strömt ein zu förderndes Fluid unmittelbar nach Passieren des Laufrades aus dem druckseitig offen ausgebildeten Pumpengehäuse in den Abflußraum der Pumpstation aus. Wie bei allen Pumpstationen des genannten Einsatzzwecks muß auf der Druckseite der Pumpe ein Rückstromverhinderer angeordnet sein, mit dessen Hilfe bei abgeschalteter Pumpe ein Zurückfließen von bereits gefördertem Fluid unterbunden wird. Bei der vorbekannten Pumpstation ist dazu die Abströmöffnung des Abflußraumes mit einer zwangsgesteuerten Rückschlagklappe ausgerüstet, die gleichzeitig als Rückstromverhinderer und als Absperrorgan dient, vergl. Seit 31, Abbildung 3 A.In order to keep the cost of such a structure low, find mainly vertical propeller pumps use. For low delivery heights up to about 2 meters, it is known from the above article to use a so-called open propeller pump. In this case, a fluid to be conveyed flows immediately after passing the impeller from the pressure side open pump housing formed in the discharge space of the pumping station. As with all pumping stations of the said use purpose, a backflow preventer must be arranged on the pressure side of the pump, with the aid of which, when the pump is switched off, a backflow of already conveyed fluid is prevented. In the known pumping station to the outflow opening of the discharge space is equipped with a positively controlled non-return valve, which also serves as a backflow preventer and as a shut-off, see. From 31, Figure 3 A.

Durch die JP-A-09 112436 ist eine Pumpstation mit den Merkmalen des Oberbegriffs des Anspruchs 1 bekannt, deren Pumpenantrieb mit einem Winkeltrieb und einem integrierten Planetengetriebe versehen ist. Dies dient der Bauhöhenreduzierung im Gebäude der Pumpstation, da der Antriebsmotor horizontal eingebaut werden kann. Und mit dem Planetengetriebe.erfolgt zusätzlich eine Drehzahlanpassung der Pumpe.By the JP-A-09 112436 a pumping station with the features of the preamble of claim 1 is known, the pump drive is provided with an angle drive and an integrated planetary gear. This serves to reduce the height in the building of the pumping station, since the drive motor can be installed horizontally. And with the planetary gearbox. In addition, a speed adjustment of the pump.

Durch die GB 2 027 470 A ist ein Rückflussverhinderer einer häuslichen Abwasseranlage bekannt, der als eine Art Vorläufer heutiger Fäkalienhebeanlagen angesehen werden kann. In dessen einen geringen Rückstau-aufnehmenden Zwischenspeicherräumen ist zusätzlich ein Pumpe angeordnet, um bei einem abflussseitigen Rückstau ein temporäres Abpumpen zu ermöglichen. Der konstruktive Aufbau des Rückflussverhinderer ist aber rückstausicher, da eine interne Zwischenwand mit integrierer Rückschlagklappe überströmt werden kann.By the GB 2 027 470 A is a backflow preventer of a domestic sewage plant known, which can be regarded as a kind of precursor of today's sewage lifting equipment. In which a small backwater-receiving buffer chambers, a pump is additionally arranged to allow for a backflow Abflussau a temporary pumping. However, the design of the non-return valve is backpressure-proof, as an internal partition with integrated non-return valve can be overflowed.

Die GB - A- 1 .070 259 offenbart für eine manuell betätigbare Toilettenspülung einen Systemtrenner, mit dessen Hilfe ein Rückströmen von kontaminierter Flüssigkeit in ein Trinkwassersystem verhindert wird.The GB-A-1 070 259 discloses for a manually operable toilet flush a system separator, with the help of a backflow of contaminated liquid is prevented in a drinking water system.

Der Erfindung liegt das Problem zugrunde, eine Pumpstation zu entwickeln, die mit geringem gerätetechnischen und bauwerklichen Aufwand einen sicheren sowie energetisch günstigen Betrieb gewährleistet.The invention is based on the problem to develop a pumping station, which ensures a safe and energetically favorable operation with low technical equipment and construction effort.

Die Aufgabe wird durch eine Pumpstation mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved by a pumping station with the features of claim 1.

Mit dieser Lösung kann auf die zusätzliche Installation einer Absperrklappe verzichtet werden. Und bei der die Flüssigkeit in aufsteigender Richtung führenden Einrichtung kann es sich um eine als Bestandteil des Bauwerkes ausgebildete Leitung, einen Kanal, ein Rohr oder eine ähnliche Ausbildung handeln. Die dadurch mögliche Einsparung einer bisher notwendigen Absperrklappe erhöht die Betriebssicherheit erheblich bei gleichzeitiger Reduktion der Investitionskosten. Denn solche Absperrklappen stellen in Folge ihrer betriebstechnisch notwendigen Steuerung und den bewegten, häufig unter Wasser befindlichen Bauteilen, ein wartungsintensives sowie störanfälliges Bauteil dar.With this solution can be dispensed with the additional installation of a butterfly valve. And when the liquid in the ascending direction leading device may be a trained as part of the structure line, a channel, a pipe or similar training. The resulting possible saving of a previously necessary shut-off valve increases the reliability significantly while reducing the investment costs. Because such valves are due to their operationally necessary control and the moving, often under water components, a maintenance-intensive and failure-prone component.

Eine Ausgestaltung der Erfindung sieht vor, daß die Oberkante der Abflußöffnung Bestandteil einer verstellbaren Öffnung ist. Somit kann bei der Entwicklung eines standardisierten Bauwerkes für eine Pumpstation durch eine einfache Abstimmung zwischen der Oberkante der Abflußöffnung und der Höhenlage der offen ausgebildeten Austrittsöffnung von der Flüssigkeit führenden Einrichtung in einfachster Weise eine bauwerkseitige Anpassung an die jeweiligen maximalen und minimalen Pegelstände auf der Abflußseite der Pumpstation erfolgen. Bei der Planung oder Herstellung der Pumpstation kann durch bloße Veränderung einer die Oberkante der Abflußöffnung definierenden Schalung eine Anpassung an die vorgegebenen Pegelstände von den außerhalb des Bauwerkes gelegenen Zulauf- und Abflußkanälen erfolgen. Ebenso kann die Oberkante Bestandteil einer höhenverstellbaren Einrichtung oder einer im Betrieb verstellbaren Einrichtung sein.An embodiment of the invention provides that the upper edge of the drain opening is part of an adjustable opening. Thus, in the development of a standardized structure for a pumping station by a simple vote between the upper edge of the drain opening and the altitude of the open outlet formed by the liquid leading device in the simplest way a building-side adaptation to the respective maximum and minimum water levels on the discharge side of the pumping station respectively. In the design or manufacture of the pumping station can be done by the mere change of the upper edge of the drain opening defining formwork adaptation to the predetermined water levels of the outside of the building located inlet and outlet channels. Likewise, the upper edge may be part of a height-adjustable device or an adjustable in operation device.

Eine andere Ausgestaltung der Erfindung sieht vor, daß in der Flüssigkeit führenden Einrichtung und/oder im Bereich der Abflußöffnung eine Förderstrommeßeinrichtung angeordnet ist. Ebenso kann nach einer weiteren Ausgestaltung der Erfindung der Abflußöffnung ein überwiegend horizontal verlaufender Abflußkanal, eine Leitung oder dergleichen mit einer darin angeordneten Förderstrommeßeinrichtung nachgeordnet sein. Eine solche Förderstrommeßeinrichtung ermöglicht in einfachster Weise eine Überwachung bis hin zu Ferndiagnose oder Fernwartung einer Pumpstation. Mit Hilfe eines auf verschiedene und bekannte Weise übertragbaren Förderstromsignals kann festgestellt werden, ob die Pumpstation bestimmungsgemäß arbeitet.Another embodiment of the invention provides that in the liquid-conducting device and / or in the region of the discharge opening a flow rate measuring device is arranged. Likewise, according to a further embodiment of the invention, the outflow opening can be arranged downstream of a predominantly horizontally extending discharge channel, a line or the like with a delivery-flow measuring device arranged therein. Such a conveyor flow measuring device makes it possible in the simplest way to monitor up to remote diagnosis or remote maintenance of a pumping station. With the aid of a conveying current signal that can be transmitted in a different and known manner, it can be determined whether the pumping station is operating as intended.

Zur Reduzierung des meßtechnischen Aufwandes während einer Förderstrommessung ist vor gesehen, daß ein für eine Förderstrommessung verwendeter durchströmter Querschnitt oder durchströmter Volumenbereich vollständig mit dem Förderfluid gefüllt ist. Dazu liegt ein höchster Punkt eines solchen Meßwerterfassungsbereiches, der gewöhnlich in einem druckseitigen Teil des Strömungsweges angeordnet ist, unterhalb des niedrigsten Wasserstandes auf der Abflußseite. Die ständige und vollständige Füllung eines solchen Meßabschnittes kann durch dessen lokale Tieferlegung oder durch eine an dessen Ende angeordnete Überlaufschwelle erfolgen. Der für die Messung verwendete durchströmte Querschnitt sollte immer unterhalb des bei einer Auslegung einer solchen Pumpstation zu Grunde gelegten niedrigsten Pegelstandes auf der Abflußseite gelegen sein. Durch die Anordnung einer Art Überlaufschwelle am Ende einer solchen Meßstrecke kann der bauliche Aufwand bei den Erdarbeiten reduzieren werden. Somit können sich Schwankungen im Höhenniveau auf der Abflußseite nicht auf den Füllstand in der Meßstrecke auswirken. Der gleiche Effekt ist mit einer abflußseitigen Meßstrecke erreichbar, die nach Art eines Dükers ausgebildet ist. Eine solche Streckenführung, die vom Prinzip der kommunizierenden Röhren Gebrauch macht, gewährleistet eine vollständige Flüssigkeitsfüllung in der für die Förderstrommessung benutzten Leitung, dem Rohr, dem Kanal oder dergleichen.To reduce the metrological effort during a flow measurement is seen before, that a used for a flow measurement through-flow or flow-through volume range is completely filled with the conveying fluid. This is a highest point of such Meßwerterfassungsbereiches, usually in a pressure-side part of the flow path is located below the lowest water level on the discharge side. The constant and complete filling of such a measuring section can be done by its local lowering or by a arranged at the end of the overflow threshold. The flow cross section used for the measurement should always be located below the lowest water level on the discharge side, which is the basis for the design of such a pumping station. By arranging a kind of overflow threshold at the end of such a measuring section, the structural complexity of the earthworks can be reduced. Thus, fluctuations in the height level on the discharge side can not affect the level in the test section. The same effect can be achieved with a discharge-side measuring section, which is designed in the manner of a culvert. Such a route, which makes use of the principle of communicating tubes, ensures a complete liquid filling in the line used for the flow rate measurement, the pipe, the channel or the like.

Gemäß einer anderen Ausgestaltung der Erfindung ist eine Pumpe mit festen und/oder verstellbaren Lauf- und/oder Leiteinrichtungen ausgerüstet. Die Verwendung solcher Verstelleinrichtungen ist abhängig von den Betriebsbedingungen, die für die Pumpstation Verwendung finden. Die Verwendung solcher Pumpenbauarten in einer Pumpstation erhöht zwar die Investitionskosten, sie bewirken aber gegenüber sogenannten starren, das heißt nicht regelbaren Pumpen, eine Verbesserung des Wirkungsgrades. Und dies bewirkt eine erhebliche Reduzierung der Stromkosten, wodurch über einen längeren Betriebszeitraum gesehen eine solche Anlage kostengünstiger zu betreiben ist. Die Einsparung der Energiekosten vermindert für den Betreiber die Lebenszykluskosten der Anlage.According to another embodiment of the invention, a pump is equipped with fixed and / or adjustable running and / or guide devices. The use of such adjustment depends on the operating conditions that are used for the pumping station. Although the use of such pump types in a pumping station increases the investment costs, but they cause compared to so-called rigid, that is not controllable pumps, an improvement in efficiency. And this causes a significant reduction in electricity costs, which seen over a longer period of operation, such a system is cheaper to operate. Saving on energy costs reduces the lifecycle costs of the system for the operator.

Nach einer anderen Ausgestaltung der Erfindung verläuft die die Flüssigkeit in aufsteigender Richtung führende Einrichtung senkrecht oder geneigt, wobei die Austrittsöffnung parallel oder geneigt zum Flüssigkeitsspiegel angeordnet ist. Erfordern die räumlichen Ausbildungen des Abflußraumes aus strömungstechnischen und/oder ortsspezifischen Gründen eine andere Anordnung oder Lage der Austrittsöffnung, dann kann die Fläche der Austrittsöffnung auch in einem Winkel und/oder gegenüber der Horizontalen geneigt verlaufen. Dabei muß, ebenso wie bei einer horizontal verlaufenden Austrittsöffnung, lediglich gewährleistet sein, daß sich eine unterste Kante der Austrittsöffnung immer oberhalb des höchsten Flüssigkeitsstandes befindet, der bei der Planung von der Pumpstation auf deren Abflußseite zugrunde gelegen hat. Mit dieser Maßnahme wird bei einem Ausschalten einer Pumpe verhindert, daß ein bereits gefördertes Fluid über die Austrittsöffnung und durch die Pumpe zurück in den Zulaufraum strömt.According to another embodiment of the invention, the liquid in the ascending direction leading device is perpendicular or inclined, wherein the outlet opening is arranged parallel or inclined to the liquid level. Require the spatial formations of the discharge space from fluidic and / or site-specific reasons a different arrangement or position of the outlet opening, then the surface of the outlet opening can also be inclined at an angle and / or relative to the horizontal. It must, just as with a horizontally extending outlet, only be ensured that a lowermost edge of the outlet opening is always located above the highest liquid level, which has been used in the planning of the pumping station on the outflow side. With this measure, it is prevented when switching off a pump that an already funded fluid flows through the outlet opening and through the pump back into the inlet chamber.

Die Austrittsöffnung oder deren unterste Kante befindet sich, wenn auch nur geringfügig, immer oberhalb des maximal auftretenden Flüssigkeitsstandes. Zusätzlich ergibt sich dadurch ein weiterer wesentlicher Vorteil, indem für eine solche Pumpstation der an sich bekannte Hebereffekt Verwendung finden kann. Die bauwerksseitige Ausbildung der Pumpstation kann somit direkt als Heber gestaltet werden, ohne die bisher bekannten speziellen Heberleitungen zusätzlich installieren zu müssen. Den unteren Heberscheitel bildet in diesem Falle die Austrittsöffnung der einer Pumpe nachgeordneten Flüssigkeit führenden Einrichtung. Die Gestaltung des Auslaßraumes als Heber steht in direkter Verbindung mit dem Energieeinparpotenzial der Pumpstation durch Rückgewinnung der geodätischen Höhendifferenz zwischen unterem Heberscheitel und dem Pegelstand auf der Abflußseite. Dies wird gewährleistet durch die Lage der Oberkante von der Abflußöffnung in Höhe des niedrigsten Pegelstandes auf der Abflußseite.The outlet or its lowest edge is, albeit only slightly, always above the maximum occurring liquid level. In addition, this results in a further significant advantage, since for such a pumping station the known lifting effect can be used. The construction-side training of the pumping station can thus be designed directly as a lifter, without having to install the previously known special lifter pipes additionally. The lower Heberscheitel forms in this case the outlet opening of a pump downstream liquid leading means. The design of the outlet space as a lifter is directly related to the energy savings potential of the pumping station by recovering the geodetic height difference between the bottom elevation of the heel and the level on the discharge side. This is ensured by the position of the upper edge of the discharge opening at the level of the lowest water level on the discharge side.

Beim Abschalten der Pumpe wird der Abflußraum der Pumpstation mit Hilfe einer Armatur belüftet, wodurch die Heberwirkung aufgehoben wird. Eine dichte Ausbildung des Abflußraumes ist während der Bauwerkserstellung problemlos möglich, da dieser kostengünstig als Betonkonstruktion gestaltet werden kann. Zur Verbesserung der Abdichtwirkung im Abflußraum können in einfacher Weise auf dessen Wandflächen entsprechend abdichtende Beschichtungen aufgebracht werden. Eine solche Ausbildung der Pumpstation ermöglicht den Verzicht auf die bisher verwendeten langen Heberleitungen. Aufgrund der bei dieser Lösung geringen Rücklaufmengen kann der pumpenseitige Sicherungsaufwand gegen Rückströmungen komplett entfallen oder unter Umständen nur noch gering gehalten werden.When switching off the pump, the discharge space of the pumping station is ventilated by means of a fitting, whereby the lifting effect is canceled. A dense formation of the discharge space is easily possible during construction work, as it can be designed cost-effectively as a concrete structure. To improve the sealing effect in the discharge space can be applied in a simple manner on the wall surfaces correspondingly sealing coatings become. Such a design of the pumping station makes it possible to dispense with the long lifting pipes previously used. Due to the low in this solution return quantities of the pump-side backup effort against backflow can be completely eliminated or under certain circumstances only be kept low.

Um auch in Sonderfällen das Anfahren bei einer erhöhten Leistungsaufnahme im Teillastgebiet der Pumpe zu ermöglichen, kann zusätzlich eine Vakuumanlage zur Entlüftung des Abflußraumes vorgesehen werden. Diese wäre dann nur während des Anfahrvorganges der Pumpe in Betrieb. Je nach Auslegung der Pumpstation und deren Betriebsbedingungen wäre zu entscheiden, ob beispielsweise einem stärkeren Pumpenantriebsmotor oder einer Vakuumanlage der Vorzug gegeben wird.In order to enable start-up at an increased power consumption in the partial load range of the pump in special cases, a vacuum system for venting the discharge space can be additionally provided. This would then only during the startup of the pump in operation. Depending on the design of the pumping station and its operating conditions would be to decide whether, for example, a stronger pump drive motor or a vacuum system is given preference.

Dazu sieht eine weitere Ausgestaltung der Erfindung vor, daß ein Antriebsaggregat einer Pumpe in wellendichtungsloser Bauart oberhalb des Abflußraumes angeordnet ist. Das Antriebsaggregat, beispielsweise ein Elektro- oder Verbrennungsmotor, mit oder ohne zwischengeschaltetem Getriebe, ist hier auf einem Höhenniveau angeordnet, welches oberhalb des gegenüber der Pumpstation auftretenden höchsten Pegelstandes liegt. Der Abflußraum wäre dabei mit der Umgebung verbunden. Die in der Flüssigkeit führenden Einrichtung existierenden, von der Pumpe erzeugten dynamischen Druckanteile der Strömung reichen nicht aus, das Höhenniveau bis zum Antriebsaggregat zu überbrücken.For this purpose, a further embodiment of the invention provides that a drive unit of a pump is arranged in shaft sealless design above the discharge space. The drive unit, such as an electric or internal combustion engine, with or without intermediate gearbox, is arranged here at a height level, which is above the highest level occurring with respect to the pumping station. The drainage room would be connected to the environment. The existing in the fluid device, generated by the pump dynamic pressure components of the flow are not sufficient to bridge the height level to the drive unit.

Bei einem abgedichteten und Bestandteil eines Heber bildenden Abflußraumes erfolgt eine Abdichtung gegenüber eines außerhalb des Abflußraumes angebrachten Antriebsaggregates mit bekannten Mitteln. Bei Pumpenbauarten mit einem trocken aufgestellten Antrieb muß eine Antriebswelle in den Abflußraum eingeführt werden. Hierbei kann eine Einsparung einer dynamisch wirkenden Welllenabdichtung durch ein statisch dicht mit dem Abflußraum verbundenes und eine Antriebswelle umgebendes Wellenschutzrohr erfolgen. Dieses ragt mit einem offenen Ende in den Abflußraum hinein und seine Länge ist so gewählt, daß sich darin aufgrund des strömenden Förderfluids ein Staudruck ausbildet. Dieser Staudruck verhindert in Verbindung mit dem durch die Strömungsverluste in dem der Austrittsöffnung nachgeschalteten Abflußraum und diesem wiederum nachgeschalteten Abflußeinrichtungen verursachten Druckanstieg einen Lufteintritt von der Umgebung in den Abflußraum beziehungsweise in die Flüssigkeit führende Einrichtung verhindert. Somit kann eine Wellenabdichtung für die Pumpenwelle eingespart werden, da sich im Wellenschutzrohr ein Flüssigkeitsstand einstellt, aufgrund dessen keine Luft von Außen in den Abflußraum gelangen und dessen Heberwirkung beeinträchtigen könnte. Das Wellenschutzrohr kann in den Fällen, in denen eine ziehbare Hydraulik Verwendung findet, auch zur Aufhängung der Hydraulikeinheit von der Pumpe benutzt werden.In a sealed and part of a lift forming drainage space is sealed against a mounted outside of the discharge space drive unit with known means. For pump types with a dry installed drive a drive shaft must be introduced into the discharge space. Here, a saving of a dynamically acting Welllenabdichtung done by a static tightly connected to the discharge space and a drive shaft surrounding wave protection tube. This sticks out with one open end into the discharge space and its length is chosen so that it forms a back pressure due to the flowing fluid flow. This back pressure prevents in connection with the flow caused by the flow losses in the outlet opening downstream discharge space and this turn downstream discharge devices pressure increase an air inlet from the environment in the discharge space or in the liquid leading means. Thus, a shaft seal can be saved for the pump shaft, as set in the wave protection tube, a fluid level, due to which no air could enter from outside into the discharge space and affect the lifting effect. The shaft protection tube can also be used to suspend the hydraulic unit from the pump in cases where a drawable hydraulic system is used.

Auch kann, um bei einem Abschalten der Pumpe ein Rückströmen des geförderten Fluids zu verhindern, der Abflußraum mit einer Belüftung versehen sein. Eine dazu Verwendung findende Armatur, die mit zugehörigen Verbindungsleitungen im trocken angeordneten Bereich der Pumpstation befindlich ist, ist leicht zugänglich, ist von kleiner Baugröße, in einfachster Weise zu betätigen und unterbricht bei Bedarf die Heberwirkung.Also, in order to prevent a return flow of the pumped fluid at a shutdown of the pump, the discharge space may be provided with a vent. A fitting used for this purpose, which is located with associated connecting lines in the dry arranged area of the pumping station is easily accessible, is of small size, easy to operate and interrupts if necessary, the lifting effect.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden näher beschrieben. Es zeigen die

Fig. 1
eine Pumpstation einfacher Bauart, die
Fig. 2 und 3
Pumpstationen mit integriertem Meßkanal, die
Fig. 4
eine Pumpstation mit schräg angeordneter Pumpe und die
Fig. 5
eine Pumpstation mit horizontal angeordneter Pumpe.
Embodiments of the invention are illustrated in the drawings and will be described in more detail below. It show the
Fig. 1
a pumping station of simple design, the
FIGS. 2 and 3
Pumping stations with integrated measuring channel, the
Fig. 4
a pumping station with inclined pump and the
Fig. 5
a pumping station with horizontally arranged pump.

Die Fig. 1 zeigt eine Pumpstation 1, die über einen Zulaufraum 2 und einen Abflußraum 3 verfügt. Innerhalb des Zulaufraumes 2, der offen oder gedeckt ausgebildet sein kann und in dem ein zu förderndes Fluid aus einer externen Quelle zufließt, sind zwei Pegelstände der zu fördernden Flüssigkeit eingezeichnet. LLWLzu steht hierbei für den niedrigsten Niedrigwasserstand und HHWLzu steht hierbei für den höchsten Hochwasserstand, der auf der Zulaufseite dieser Pumpstation 1 auftreten kann.The Fig. 1 shows a pumping station 1, which has an inlet space 2 and a discharge space 3. Within the Zulaufraumes 2, which may be formed open or covered and in which a fluid to be delivered flows from an external source, two water levels of the liquid to be conveyed are located. LLWLzu stands for the lowest low water level and HHWLzu stands for the highest high water level that can occur on the inlet side of this pumping station 1.

Auf der Oberseite des Zulaufraumes 2 ist eine Trennwand 4 angeordnet, durch die hindurch sich eine Pumpe 5 in senkrechter Anordnung erstreckt. Im unteren Teil der Pumpe 5 sind ein oder mehrere - hier nicht dargestellte - Laufräder angeordnet. Den Antrieb der Pumpe 5 bewirkt ein oberhalb derselben angeordnetes Antriebsaggregat 6. Die Leistungsübertragung zwischen Antriebsaggregat 6 und Pumpe 5 erfolgt durch eine Welle 7. Das Antriebsaggregat 6 liegt mit üblichen Befestigungsmitteln auf der Decke 8 des Abflußraumes 3 auf. Im gezeigten Beispiel ist das Antriebsaggregat 6 auf der Decke 8 luftdicht befestigt, so daß der Abflußraum 3 selbst eine Heberwirkung ausübt.On the upper side of the inlet space 2, a partition wall 4 is arranged, through which a pump 5 extends in a vertical arrangement. In the lower part of the pump 5, one or more - not shown - wheels are arranged. The drive of the pump 5 causes a drive unit 6 arranged above the same. The power transmission between the drive unit 6 and the pump 5 takes place through a shaft 7. The drive unit 6 rests on the ceiling 8 of the discharge space 3 with conventional fastening means. In the example shown, the drive unit 6 is mounted airtight on the ceiling 8, so that the discharge space 3 itself exerts a lifting action.

Das Gehäuse der senkrecht angeordneten Pumpe 5 ist als Flüssigkeit führende Einrichtung 9 gestaltet, die über eine offen ausgebildete und sich parallel zum Flüssigkeitspegel erstreckende Austrittsöffnung 10 verfügt. Die Austrittsöffnung 10 liegt auf einem Höhenniveau, welches mindestens gleich ist oder über dem höchsten Hochwasserstand HHWLab auf der Seite des Abflußes 11 der Pumpstation 1 liegt. Die Flüssigkeit führende Einrichtung 9, die hier als ein Steigrohr ausgebildet ist, mündet mit dem offenen Rohrende oder der Austrittsöffnung 10 in den geschlossenen und zum Zulaufraum 2 flüssigkeitsdicht ausgebildeten Abflußraum 3. Der Abflußraum 3 verfügt über eine Abflußöffnung 12, durch die eine Verbindung mit dem der Pumpstation 1 nachgeordneten Abfluß 11 hergestellt wird. Im Abfluß 11 sind ebenfalls zwei Pegelstände eingezeichnet. Der Pegelstand LLWLab kennzeichnet hierbei den niedrigsten Niedrigwasserstand und der Pegelstand HHWLab kennzeichnet den höchsten erreichbaren Pegelstand auf der Abflußseite.The housing of the vertically arranged pump 5 is designed as a liquid-conducting device 9, which has an open design and parallel to the liquid level extending outlet opening 10. The outlet opening 10 is at a height level which is at least equal to or above the highest high water level HHWLab on the side of the outlet 11 of the pumping station 1. The liquid-conducting device 9, which is designed here as a riser, opens with the open end of the pipe or the outlet opening 10 in the closed and liquid-tight inlet chamber 2 formed drainage space 3. The discharge chamber 3 has a drain opening 12 through which a connection with the the pumping station 1 downstream drain 11 is produced. In the drain 11, two water levels are also shown. The water level LLWLab indicates the lowest low water level and the water level HHWLab indicates the highest achievable water level on the discharge side.

Die Oberkante 13 der Abflußöffnung 12 aus dem Abflußraum 3 liegt dabei höchstens auf dem Niveau des niedrigsten Pegelstand LLWLab. Die Austrittsöffnung 10 der Flüssigkeit führenden Einrichtung 9 befindet sich mindestens auf der Höhe des höchsten Hochwasserstandes HHWLab auf der Abflußseite 11. Somit muß von der Pumpe 5 nur maximal diejenige Förderleistung erbracht werden, die bei gleichzeitig niedrigstem LLWLzu im Zulaufraum zum Erreichen des höchsten Wasserstandes HHWLab notwendig ist.The upper edge 13 of the discharge opening 12 from the discharge space 3 is at most at the level of the lowest water level LLWLab. The outlet opening 10 of the liquid-conducting device 9 is located at least at the height of the highest high water level HHWLab on the discharge side 11. Thus, the pump 5 must be provided only a maximum that conveying capacity at the same time the lowest LLWLzu in Zulaufraum to reach the highest water level HHWLab necessary is.

Die Oberkante 13 der Abflußöffnung 12 ist Bestandteil einer verstellbaren Öffnung. Durch eine einfache Abstimmung zwischen der Oberkante 13 der Abflußöffnung 12 und der Höhenlage der offen ausgebildeten Austrittsöffnung 10 von der Flüssigkeit führenden Einrichtung 9 erfolgt in einfachster Weise eine bauwerkseitige Anpassung an die jeweiligen maximalen und minimalen Pegelstände HHWLab und LLWLab auf der Abflußseite 11 der Pumpstation 1. Durch bloße Veränderung der Oberkante erfolgt eine Anpassung an die vorgegebenen Pegelstände von den außerhalb des Bauwerkes gelegenen Zulauf- und Abflußkanälen. Die Oberkante ist hier als Bestandteil einer höhenverstellbaren Einrichtung dargestellt. Sie kann mittels üblicher Befestigungsmittel im Abflußraum dicht befestigt werden. Bei stark schwankenden Pegelständen auf der Seite des Abfluß 11 ist es eine kalkulatorische Frage, ob aus Gründen einer Energieeinsparung die Oberkante 13 als eine im Betrieb verstellbare Einrichtung ausgebildet wird.The upper edge 13 of the discharge opening 12 is part of an adjustable opening. By a simple vote between the upper edge 13 of the drain opening 12 and the altitude of the open outlet opening 10 of the liquid leading device 9 is carried out in the simplest way a building-side adaptation to the respective maximum and minimum water levels HHWLab and LLWLab on the discharge side 11 of the pumping station. 1 By simply changing the top edge, an adaptation to the predetermined water levels of the inlet and outlet channels located outside of the structure takes place. The upper edge is shown here as part of a height-adjustable device. It can be tightly secured by means of conventional fasteners in the discharge space. With strongly fluctuating water levels on the side of the drain 11, it is an imputed question whether, for reasons of energy saving, the upper edge 13 is formed as an adjustable in operation device.

Sensoren 14 von Durchflußmeßgeräten können innerhalb der Flüssigkeit führenden Einrichtung 9, im Bereich der Abflußöffnung 12 oder im Abfluß 11 angeordnet sein.Sensors 14 of flowmeters may be disposed within the liquid-conducting device 9, in the region of the discharge opening 12 or in the outflow 11.

Um bei einem Abschalten der Pumpe 5 ein Rückströmen des Förderfluids von der Seite des Abflusses 11 zu verhindern, weist der Abflußraum 3 eine Belüftung 15 auf. Diese besteht hier aus einer Rohrleitung mit einer daran angeordneten Belüftungsarmatur. Wird eine solche Belüftungsarmatur geöffnet, dann wird der Kraftschluß einer zurückströmenden Flüssigkeitssäule in dem als Heber ausgebildeten Abflußraum 3 aufgrund der Luftzufuhr unterbrochen.In order to prevent a backflow of the conveying fluid from the side of the outflow 11 when the pump 5 is switched off, the discharge space 3 has a ventilation 15. This consists of a pipeline with a ventilation fitting arranged thereon. If such a ventilation fitting is opened, then the frictional connection of a liquid column flowing back into the effluent space 3 designed as a lift is interrupted due to the supply of air.

In der Fig. 2 ist eine Pumpstation 1 gezeigt, bei der an der Abflußöffnung 12 des Abflußraumes 3 ein Meßkanal 16 nachgeordnet ist. In diesem Meßkanal 16 befindet sich der höchste Punkt höchstens auf dem Niveau des niedrigsten Niedrigwasserstandes LLWLab. Somit ist die vollständige Füllung des Meßkanal 16 mit Flüssigkeit gewährleistet, wodurch einfache Förderstrommeßgeräte, beispielsweise Ultraschallsensoren 14, für die Förderstrommessung Verwendung finden können. Eine Messung verfälschende Lufteinschlüsse werden dadurch vermieden. Um die ständige Füllung des Meßkanals zu gewährleisten, kann im Abfluß 11 der Pumpstation 1 eine Überlaufschwelle 17 angeordnet sein. Deren Höhe 17.1 ist so bemessen, daß unter allen Betriebszuständen ein Mindestwasserstand LLWLab im Meßkanal 16 gewährleistet bleibt. Vom Prinzip her ist ein so gestalteter Meßkanal 16 wie ein Düker ausgebildet. Die in Fig. 2 gezeigte Pumpstation stellt quasi eine Kombination von Pumpe mit nachgeordnetem Heber und dem Heber nachgeordnetem Düker dar.In the Fig. 2 a pumping station 1 is shown, in which a measuring channel 16 is arranged downstream of the discharge opening 12 of the discharge space 3. In this measuring channel 16, the highest point is at most at the level of the lowest low water level LLWLab. Thus, the complete filling of the measuring channel 16 is ensured with liquid, whereby simple Förderstrommeßgeräte, such as ultrasonic sensors 14, can be used for the flow rate measurement. A measurement falsifying air pockets are thereby avoided. In order to ensure the constant filling of the measuring channel, an overflow threshold 17 can be arranged in the outlet 11 of the pumping station 1. Their height 17.1 is such that a minimum water level LLWLab in the measuring channel 16 is ensured under all operating conditions. In principle, such a designed measuring channel 16 is designed as a culvert. In the Fig. 2 pump station shown represents a quasi combination of pump with downstream lift and the lifter downstream Düker.

Da bei diesem Ausführungsbeispiel einer solchen Pumpstation der Abflußraum 3 kleiner ausgeführt ist, wurde aufgrund der baulichen Gegebenheiten einem Steigrohr 9 mit schräg verlaufender Austrittsöffnung 10 der Vorzug gegeben. Die Unterkante 18 der offenen Austrittsöffnung 10 verläuft immer gleich oder geringfügig oberhalb des höchsten Hochwasserstandes HHWLab auf der Seite des Abflusses 11.Since in this embodiment of such a pumping station the discharge space 3 is made smaller, a riser pipe 9 with obliquely extending outlet opening 10 was given preference due to the structural conditions. The lower edge 18 of the open outlet opening 10 always runs the same or slightly above the highest high water level HHWLab on the side of the outflow 11th

In der Fig. 3 ist die Flüssigkeit führende Einrichtung 9 als direkter Bestandteil des Bauwerkes von der Pumpstation 1 ausgebildet, in dem sie Bestandteil der Betonkonstruktion ist. Darin ist eine als Tauchmotorpumpe ausgebildete Pumpe 5 abgesenkt, deren Antriebsmotor vom Förderfluid umspült ist. Eine solche Bauart kann sehr leicht montiert werden und ist für eventuelle Wartungszwecke leicht herauszuheben. Die notwendige Antriebsenergie wird durch elektrische Versorgungkabel 20 eingeleitet. Das Wirkungsprinzip ist analog der Ausführungsform von Fig. 1. Zusätzlich ist eine Vakuumanlage 21 zur Entlüftung des Abflußraumes 3 vorgesehen. Sie ermöglicht in Sonderfällen das Anfahren der Pumpstation 1 und kann in die Montageöffnung 8.1 einmünden, mit der Belüftung 15 kombiniert oder in anderer Art angeordnet werden.In the Fig. 3 the liquid-conducting device 9 is formed as a direct part of the building of the pumping station 1, in which it is part of the concrete structure. This is a designed as a submersible pump pump 5 is lowered, the drive motor is surrounded by the fluid flow. Such a design is very easy to install and is easy to identify for any maintenance purposes. The necessary drive energy is introduced by electrical supply cable 20. The principle of action is analogous to the embodiment of Fig. 1 , In addition, a vacuum system 21 is provided for venting the discharge space 3. It allows in special cases, the start of the pumping station 1 and can open into the mounting opening 8.1, combined with the ventilation 15 or arranged in a different way.

Für Wartungsarbeiten im Bereich des Zu- und Abflusses 2, 11 sowie im Bereich der Pumpe 5 mit zugehörigem Antriebsaggregat 6 finden an den dargestellten Ausführungsbeispielen der Pumpstationen auch Hebezeuge Verwendung, mit denen solche Arbeiten erleichtert werden. Der Zulaufraum 2 ist hier teilweise abgedeckt ausgebildet, da er über eine gedeckte Zulaufkammer 2.1 verfügt, aus der heraus die Pumpe 5 ansaugt. Damit werden bei niedrigen Pegelständen die Bildung von nachteiligen luftziehenden Wirbeln vermieden.For maintenance work in the area of the inflow and outflow 2, 11 as well as in the area of the pump 5 with associated drive unit 6, hoists are also used on the illustrated embodiments of the pumping stations, with which such work is facilitated. The inlet chamber 2 is here partially covered, since it has a covered inlet chamber 2.1 from which the pump 5 sucks. This avoids the formation of disadvantageous air-pulling vortices at low water levels.

Die Fig. 4 zeigt eine Ausführungsform einer Pumpstation 1 mit schräg angeordneter Pumpe 5. Um auf Seiten des Bauwerkes der Pumpstation eine Kosteneinsparung zu realisieren, ist in die schräg verlaufende flüssigkeitsführende Einrichtung 9 ein tauchbares Motorpumpenaggregat eingebaut. Solche auch als Tauchmotorpumpen bekannten Pumpen 5 verfügen über einen ständig überfluteten und sehr wartungsarmen Motor. Die Austrittsöffnung 10 der Flüssigkeit führenden Einrichtung 9 kann - wie gezeigt - schräg zu den in der Pumpstation vorhandenen Pegelständen verlaufen. Die gewählte Schräglage ist abhängig von den örtlichen Gegebenheiten am Einbauort. In der Decke 8 des Abflußraumes 3 befindet sich eine luftdicht verschließbare Montageöffnung 8.1 für die Montage, Inspektion und ähnliches von der in den Zulaufraum 2 abgesenkt angeordneten Pumpe 5. Auch bei einer solchen Ausbildung einer Pumpstation 1 kann in einem Meßkanal 16 eine Förderstrommeßeinrichtung mit zugehörigen Sensoren 14 Verwendung finden.The Fig. 4 shows an embodiment of a pumping station 1 with obliquely arranged pump 5. In order to realize a cost savings on the part of the construction of the pumping station, a submersible motor pump unit is installed in the inclined liquid-conducting device 9. Such also known as submersible pumps 5 pumps have a constantly flooded and very low maintenance engine. The outlet opening 10 of the liquid-conducting device 9 can - as shown - run obliquely to the existing in the pumping station water levels. The selected inclination depends on the local conditions at the installation site. In the ceiling 8 of the discharge chamber 3 is an airtight sealable mounting opening 8.1 for mounting, inspection and the like from the lowered into the inlet chamber 2 is arranged Pump 5. Even with such a design of a pumping station 1, a conveying stream measuring device with associated sensors 14 can be used in a measuring channel 16.

Die Flüssigkeit führende Einrichtung 9 verfügt im Bereich der darin abgesenkten Pumpe 5 über einen runden Querschnitt, der in Richtung Austrittsöffnung 10 in einen eckigen Querschnitt übergeht. Bei solchen als Betonkonstruktion ausgebildeten Bauteilen reduzieren die verwendeten eckigen Querschnitte die Herstellungskosten und senken die Betriebskosten der Pumpstation, da dadurch die einfache Möglichkeit zur Verwendung größerer durchströmter Querschnittsflächen gegeben ist. Die Unterkante 18 der Austrittsöffnung 10 ist mindestens auf dem Niveau des Pegelstandes HHWLab angeordnet. Eine solche Ausbildung einer Pumpstation ist sehr kompakt herstellbar und befahrbar. Somit kann eine Pumpe 5 direkt von einem anliefernden Kraftfahrzeug an den Einbauort abgesenkt werden. Die Funktion der Trennwand 4 wird bei dieser kompakten Bauweise einer Pumpstation von der Flüssigkeit führenden Einrichtung 9 übernommen.The liquid-conducting device 9 has in the region of the pump 5 lowered therein a round cross-section which merges in the direction of the outlet opening 10 into a polygonal cross-section. In such trained as a concrete structure components used square cross-sections reduce manufacturing costs and reduce the operating costs of the pumping station, since this is the easy way to use larger flow-through cross-sectional areas. The lower edge 18 of the outlet opening 10 is arranged at least at the level of the level HHWLab. Such a design of a pumping station is very compact to produce and passable. Thus, a pump 5 can be lowered directly from a supplying motor vehicle to the installation. The function of the partition 4 is taken over in this compact design of a pumping station of the liquid-conducting device 9.

In der Fig. 5 ist eine Pumpstation 1 mit horizontal angeordneter Pumpe 5 und ebenfalls in kompakter Bauart analog der Fig. 4 gezeigt. Bei der Pumpe 5 kann es sich um eine ein- oder mehrstufige Unterwassermotorpumpe handeln. Die Trennwand 4 zwischen Zulaufraum 2 und Abflußraum 3 ist vertikal angeordnet. Die Pumpe 5 fördert direkt in eine schachtförmig ausgebildete Flüssigkeit führende Einrichtung 9 und daraus in den Abflußraum 3. In demjenigen Raumteil 3.1 des Abflußraumes 3, der in Strömungsrichtung hinter der Austrittsöffnung 10 der Flüssigkeit führende Einrichtung 9 befindlich ist, ist auf einem geringeren Höhenniveau die Oberkante 13 der Abflußöffnung 12 angeordnet. Die Austrittsöffnung 10 ist hierbei mindestens so hoch wie der höchst erreichbare Hochwasserstand HHWLab auf der Abflußseite 11 angeordnet. Somit wird für wechselnde Betriebswasserstände (z.B. LLWL) im Abflußkanal nur die für den jeweiligen Pegelstand erforderliche Pumpenförderhöhe benötigt.In the Fig. 5 is a pumping station 1 with horizontally arranged pump 5 and also in a compact design analogous to Fig. 4 shown. The pump 5 may be a single or multi-stage submersible pump. The partition wall 4 between the inlet 2 and drainage chamber 3 is arranged vertically. The pump 5 conveys directly into a duct-shaped liquid leading means 9 and therefrom in the discharge space 3. In that space part 3.1 of the discharge space 3, which is behind the outlet opening 10 of the liquid leading means 9 located in the flow direction, is at a lower level the top level 13 of the drain opening 12 is arranged. The outlet opening 10 is in this case at least as high as the highest achievable high water level HHWLab disposed on the discharge side 11. Thus, for changing operating water levels (eg LLWL) in the spillway only required for each level pump level is required.

In den schematischen Darstellungen der Ausführungsbeispiele von den Fig. 1 bis 5 sind in den Bauwerken die Übergänge zwischen den verschiedenen Strömungswegen vereinfacht mit scharfkantigen Übergängen dargestellt. Bei praktisch ausgeführten Anlagen werden zur Verringerung der Widerstände die Strömungswege selbstverständlich optimiert. Die Querschnitte der Strömungswege sind aufgrund der Gestaltung der Pumpstation außerordentlich groß dimensioniert. Die Übergänge werden entsprechend den hindurchströmenden Durchflußmengen ausgelegt. Im Gegensatz zu den bekannten Ausführungen, bei denen ein Hebersystem durch strömungsführende Rohrleitungen gebildet wird, kann der Gesamtwirkungsgrad einer Pumpstation 1 durch derartige Maßnahmen deutlich gesteigert werden. Eine solche Integration eines Hebers direkt in das Bauwerk der Pumpstation vereinfacht dessen Gestaltung ganz wesentlich.In the schematic representations of the embodiments of the Fig. 1 to 5 In the buildings, the transitions between the different flow paths are simplified with sharp-edged transitions. In practical systems, the flow paths are naturally optimized to reduce the resistance. The cross sections of the flow paths are extremely large due to the design of the pumping station. The transitions are designed according to the flow rates flowing therethrough. In contrast to the known embodiments, in which a lift system is formed by flow-conducting pipelines, the overall efficiency of a pumping station 1 can be significantly increased by such measures. Such an integration of a lifter directly into the structure of the pumping station simplifies its design significantly.

Claims (14)

  1. Pumping station (1) comprising a building which has at least one inflow chamber (2) and at least one outflow chamber (3) which is arranged at a different height and is intended for a fluid which is to be delivered, a partition (4) within the structure being arranged between these at least two chambers (2, 3), at least one pump (5) delivering a fluid through a partition (4) of this type into the outflow chamber (3) of the structure, the outflow chamber (3) having an outflow opening (12) which is arranged at an angle to an outlet opening (10) of the pump (5), in which case the upper edge (13) of the said outflow opening is situated below a liquid level which prevails in an outflow (11) arranged downstream of the structure, and in which a rising, liquid-conducting device (9) is arranged downstream of the pump (5), characterized in that the outlet opening (10) of the pump is designed to be open, in that the rising, liquid-conducting device (9) is provided with this outlet opening, and in that this outlet opening (10) is arranged in the outflow chamber (3) above the upper edge (13) of the outflow opening (12).
  2. Pumping station according to Claim 1, characterized in that the liquid-conducting device (9) is designed as a rising pipe and/or rising channel.
  3. Pumping station according to Claim 1 or 2, characterized in that the upper edge (13) of the outflow opening (12) is part of an adjustable opening.
  4. Pumping station according to Claim 1, 2 or 3, characterized in that a delivery-flow measuring device (14) is arranged in the liquid-conducting device (9) and/or in the region of the outflow opening (12).
  5. Pumping station according to one of Claims 1 to 4, characterized in that an outflow channel (16) running predominantly horizontally and having a delivery-flow measuring device (14) arranged in it is arranged downstream of the outflow opening (12).
  6. Pumping station according to Claims 4 or 5, characterized in that the pumping station (1) and/or the delivery-flow measuring device (14) is equipped with a device for remote maintenance.
  7. Pumping station according to one of Claims 1 to 6, characterized in that a cross section (12) which is used for measuring the delivery flow and through which the flow passes or a volume region (16) through which the flow passes is completely filled with the delivery fluid.
  8. Pumping station according to one of Claims 1 to 7, characterized in that a pump (5) is fitted with fixed and/or adjustable running and/or conducting devices.
  9. Pumping station according to one or more of Claims 1 to 8, characterized in that the liquid-conducting device (9) runs vertically or inclined, in which case that edge (18) of the open outlet opening (10) which is arranged at the lowest point is level with or higher than the maximum liquid level (HHWLout) on the side having the outflow (11).
  10. Pumping station according to one or more of Claims 1 to 9, characterized in that the outflow chamber (3) is provided with a ventilating means (15).
  11. Pumping station according to one or more of Claims 1 to 10, characterized in that a drive unit (6) of the pump (5) having a shaft leadthrough without a seal is arranged above the outflow chamber.
  12. Pumping station according to one or more of Claims 1 to 11, characterized in that the outflow chamber (3) is connected to a vacuum system (21).
  13. Pumping station according to one or more of Claims 1 to 12, characterized in that a measuring channel (16) in the form of a drain is arranged downstream of the outflow chamber (3).
  14. Pumping station according to one or more of Claims 1 to 13, characterized in that directional changes of the flow take place within the pumping station in an energy-saving manner by means of wall geometries having flow-assisting profiles.
EP01969360A 2000-07-14 2001-07-10 Pump station Expired - Lifetime EP1301665B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10034174 2000-07-14
DE10034174A DE10034174A1 (en) 2000-07-14 2000-07-14 pump station
PCT/EP2001/007923 WO2002006596A1 (en) 2000-07-14 2001-07-10 Pump station

Publications (2)

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EP1301665A1 EP1301665A1 (en) 2003-04-16
EP1301665B1 true EP1301665B1 (en) 2009-02-11

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EP01969360A Expired - Lifetime EP1301665B1 (en) 2000-07-14 2001-07-10 Pump station

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US (1) US6681801B2 (en)
EP (1) EP1301665B1 (en)
AR (1) AR031378A1 (en)
AT (1) ATE422584T1 (en)
AU (1) AU2001289637A1 (en)
BR (1) BR0112567B1 (en)
CZ (1) CZ200358A3 (en)
DE (2) DE10034174A1 (en)
DK (1) DK1301665T3 (en)
ES (1) ES2322238T3 (en)
HU (1) HU227734B1 (en)
MX (1) MXPA03000396A (en)
MY (1) MY133968A (en)
PL (1) PL204069B1 (en)
PT (1) PT1301665E (en)
RO (1) RO121342B1 (en)
WO (1) WO2002006596A1 (en)
ZA (1) ZA200210199B (en)

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Publication number Priority date Publication date Assignee Title
WO2008062482A2 (en) * 2006-11-24 2008-05-29 Kirloskar Brothers Limited Arrangements for pumping fluids from sumps
GB2460301A (en) * 2008-05-30 2009-12-02 Pulsar Process Measurement Ltd Sump monitoring method and apparatus
JP6101574B2 (en) * 2013-06-04 2017-03-22 株式会社荏原製作所 Underground drainage station and operation method thereof
CN104454549A (en) * 2014-12-29 2015-03-25 合肥工业大学 Axial-flow type prefabricated pump station
CN108502942B (en) * 2018-03-27 2020-11-10 重庆科创水处理设备有限公司 Energy-saving sewage treatment equipment
US20220042508A1 (en) * 2020-08-07 2022-02-10 Hayes Pump, Inc. Submersible fuel oil set
BE1030130B1 (en) * 2021-12-28 2023-07-24 Smet Gwt Europe IMPROVED GRILLING

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ES2322238T3 (en) 2009-06-18
RO121342B1 (en) 2007-03-30
BR0112567A (en) 2003-07-29
AR031378A1 (en) 2003-09-24
HU227734B1 (en) 2012-01-30
HUP0400523A2 (en) 2004-06-28
EP1301665A1 (en) 2003-04-16
ZA200210199B (en) 2003-12-22
PL204069B1 (en) 2009-12-31
CZ200358A3 (en) 2003-06-18
US20030152470A1 (en) 2003-08-14
DK1301665T3 (en) 2009-06-08
AU2001289637A1 (en) 2002-01-30
MY133968A (en) 2007-11-30
DE50114702D1 (en) 2009-03-26
ATE422584T1 (en) 2009-02-15
WO2002006596A1 (en) 2002-01-24
MXPA03000396A (en) 2003-05-27
PT1301665E (en) 2009-05-14
PL365707A1 (en) 2005-01-10
BR0112567B1 (en) 2010-11-30
DE10034174A1 (en) 2002-01-24
US6681801B2 (en) 2004-01-27

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